阅读说明：本技术 弹簧引导件以及悬架装置 (Spring guide and suspension device ) 是由 栗原健太 于 2020-04-27 设计创作，主要内容包括：一种弹簧引导件,被安装于在车身与车轮之间所设置的减震器(1),并对弹性支承车身的螺旋弹簧(4)进行支承,其中,弹簧引导件具有：本体部(101),其由树脂材料构成；弹性部(103A),其被设置于本体部(101)与螺旋弹簧(4)的端部之间,弹性部(103A)由与本体部(101)的材料相比弹性率较低的材料构成,并被一体成形于本体部(101)。(A spring guide that is attached to a shock absorber (1) provided between a vehicle body and a wheel and supports a coil spring (4) that elastically supports the vehicle body, the spring guide comprising: a main body (101) made of a resin material; and an elastic part (103A) that is provided between the body part (101) and the end of the coil spring (4), wherein the elastic part (103A) is formed of a material having a lower elastic modulus than the material of the body part (101), and is integrally formed with the body part (101).)

1. A spring guide which is attached to a shock absorber provided between a vehicle body and a wheel and supports a coil spring that elastically supports the vehicle body,

the spring guide has:

a main body portion made of a resin material;

an elastic portion provided between the body portion and an end portion of the coil spring,

the elastic portion is made of a material having a lower elastic modulus than the material of the main body portion, and is integrally formed with the main body portion.

2. The spring guide of claim 1,

the body portion has:

a disc-shaped base portion having a placement area for placing the coil spring;

a side wall extending upward from a radially outer end of the base portion,

the elastic part has:

a first elastic sheet portion integrally formed in the placement region in the base portion;

a second elastic sheet portion integrally formed with the side wall and a region radially outside the placement region in the base portion.

3. The spring guide of claim 2,

the first elastic sheet material portion has a thickness thicker than that of the second elastic sheet material portion.

4. The spring guide of claim 2,

the second elastic sheet material portion has a thickness thicker than that of the first elastic sheet material portion.

5. The spring guide of claim 2,

the second elastic sheet material portion is made of a material having a higher elastic modulus than a material of the first elastic sheet material portion.

6. The spring guide of claim 1,

the body portion has:

a disc-shaped base portion on which a lower end portion of the coil spring is placed;

a position specifying unit that is provided inside the coil spring so as to protrude from the base unit and specifies a position of a lower end portion of the coil spring,

the elastic part has:

a first elastic sheet portion integrally formed with the base portion;

and a third elastic sheet portion integrally formed with the position specifying portion.

7. The spring guide of claim 6,

the body portion has a cylindrical tube portion through which a cylinder of the shock absorber is inserted,

the third elastic sheet portion closes a gap between the cylinder and an insertion hole of the cylindrical portion through which the cylinder is inserted.

8. The spring guide of claim 7,

the third elastic sheet member portion has a lip portion that comes into contact with the cylinder of the shock absorber and closes a gap between the cylinder and the insertion hole.

9. The spring guide of claim 7,

the third elastic sheet portion has a thickness thinner than that of the first elastic sheet portion.

10. The spring guide of claim 7,

the third elastic sheet material portion is made of a material having a lower elastic modulus than the material of the first elastic sheet material portion.

11. A suspension device is provided with:

the spring guide of claim 1;

the shock absorber;

an upper bracket mounted to a top end of a rod of the shock absorber;

the coil spring disposed between the spring guide and the upper bracket;

and a metal support portion that is fixed to the cylinder of the shock absorber and supports the spring guide.

Technical Field

The invention relates to a spring guide and a suspension device.

Background

There is known a suspension device including a shock absorber, a coil spring externally mounted on the shock absorber, and a spring guide supporting a lower end portion of the coil spring (see japanese patent laid-open No. JP2012-219825 a). The spring guide includes a metal spring support member and a rubber sheet provided between the spring support member and a lower end portion of the coil spring.

Two positioning projections for positioning with respect to the spring bearing member are provided on the rubber sheet. The rubber sheet is attached to the spring support member by fitting each protrusion into a positioning hole provided in the spring support member.

Disclosure of Invention

In the suspension device described in japanese patent application laid-open No. JP2012-219825a, the spring support member and the rubber sheet constituting the spring guide are separate bodies. Therefore, the rubber sheet needs to be attached to the spring support member, and the assembly is time-consuming. In addition, there is an increasing demand for reduction in weight of devices mounted on vehicles such as automobiles. Therefore, weight reduction of the spring guide is desired.

The invention aims to reduce the weight of a spring guide and reduce the number of parts of the spring guide.

According to one aspect of the present invention, a spring guide is attached to a shock absorber provided between a vehicle body and a wheel, and supports a coil spring that elastically supports the vehicle body, the spring guide including: a main body portion made of a resin material; and an elastic portion provided between the main body portion and an end portion of the coil spring, the elastic portion being made of a material having a lower elastic modulus than a material of the main body portion and being integrally formed with the main body portion.

Drawings

Fig. 1 is a partial cross-sectional view of a suspension device according to a first embodiment of the present invention.

Fig. 2 is a perspective view of a spring guide according to a first embodiment of the present invention.

Fig. 3A is a schematic plan view of the spring guide according to the first embodiment of the present invention as viewed from above, and fig. 3A is a simplified diagram showing the elastic portion forming region schematically in hatched lines.

Fig. 3B is a side sectional view of the spring guide according to the first embodiment of the present invention.

Fig. 4A is a schematic plan view of a spring guide according to a modification of the first embodiment of the present invention as viewed from above, and fig. 4A is a simplified diagram showing a region where an elastic portion is formed in a hatched manner.

Fig. 4B is a side cross-sectional view of a spring guide according to a modification of the first embodiment of the present invention.

Fig. 5A is a schematic plan view of a spring guide according to a second embodiment of the present invention, as viewed from above, and fig. 5A is a simplified diagram showing a region where an elastic portion is formed, schematically shown by hatching.

Fig. 5B is a side sectional view of a spring guide according to a second embodiment of the present invention.

Fig. 6A is a schematic plan view of a spring guide according to a modification of the second embodiment of the present invention as viewed from above, and fig. 6A is a simplified diagram showing a region where an elastic portion is formed in a hatched manner.

Fig. 6B is a side cross-sectional view of a spring guide according to a modification of the second embodiment of the present invention.

Fig. 7A is a schematic plan view of a spring guide according to a third embodiment of the present invention as viewed from above, and fig. 7A is a simplified diagram showing a region where an elastic portion is formed in a hatched manner.

Fig. 7B is a side sectional view of a spring guide according to a third embodiment of the present invention.

Fig. 8A is a schematic plan view of a spring guide according to a modification of the third embodiment of the present invention as viewed from above, and fig. 8A is a simplified diagram showing a region where an elastic portion is formed in a hatched manner.

Fig. 8B is a side cross-sectional view of a spring guide according to a modification of the third embodiment of the present invention.

Fig. 9A is a schematic plan view of a spring guide according to a fourth embodiment of the present invention as viewed from above, and fig. 9A is a simplified diagram showing a region where an elastic portion is formed in a hatched manner.

Fig. 9B is a side sectional view of a spring guide according to a fourth embodiment of the present invention.

Fig. 10A is a schematic plan view of a spring guide according to a modification of the fourth embodiment of the present invention as viewed from above, and fig. 10A is a simplified diagram showing the elastic portion forming region schematically in hatched lines.

Fig. 10B is a side cross-sectional view of a spring guide according to a modification of the fourth embodiment of the present invention.

Fig. 11A is a schematic plan view of the spring guide according to modification 1 of the present embodiment as viewed from above, and fig. 11A is a simplified diagram showing the elastic portion forming region schematically in hatched lines.

Fig. 11B is a side sectional view of a spring guide according to modification 1 of the present embodiment.

Fig. 12A is a schematic plan view of the spring guide according to modification 2 of the present embodiment as viewed from above, and fig. 12A is a simplified diagram showing the elastic portion forming region schematically in hatched lines.

Fig. 12B is a side cross-sectional view of a spring guide according to modification 2 of the present embodiment.

Fig. 13 is a side sectional view of a spring guide according to modification 3 of the present embodiment.

Fig. 14 is a partial cross-sectional view of the spring guide according to modification 5 of the present embodiment in the vicinity of the lip portion.

Detailed Description

A suspension device 10 according to an embodiment of the present invention will be described with reference to the drawings.

The suspension device 10 is mounted on an automobile (not shown), positions wheels (not shown), generates a damping force, and absorbs shock and vibration received from a road surface during traveling of the vehicle, thereby stably suspending a vehicle body.

< first embodiment >

A suspension device 10 according to a first embodiment of the present invention will be described with reference to fig. 1, 2, 3A, and 3B. Fig. 1 is a partial sectional view of a suspension device 10. As shown in fig. 1, the suspension device 10 includes: a shock absorber (shock absorber)1 provided between a vehicle body and a wheel; an upper bracket (upper mount)2 attached to a tip end of a piston rod (hereinafter referred to as rod) 1a of the shock absorber 1; a spring guide 100A attached to the outer periphery of the cylinder 1b of the shock absorber 1; a coil spring 4 that is provided between the spring guide 100A and the upper bracket 2 and elastically supports the vehicle body; a crash pad 5 that is fitted to the rod 1a and limits the stroke of the shock absorber 1 on the contraction side; a bumper 6 fitted to an end of the cylinder 1b on the rod 1a side; and a cylindrical dust boot (dust boots)7 that protects the rod 1 a.

The damper 1 includes a cylinder 1b and a columnar rod 1a protruding from an opening portion of the cylinder 1 b. The damper 1 is a multi-tube type damper, and the cylinder 1b has a bottomed cylindrical outer tube constituting an outer contour of the cylinder 1b and an inner tube (not shown) provided inside the outer tube. A piston (not shown) that divides the inside of the inner tube (not shown) into an extension-side chamber and a compression-side chamber is connected to the lower end portion of the rod 1 a.

A knuckle bracket 1c for coupling a knuckle (knuckle) that holds a wheel and the damper 1 is provided at an end portion of the cylinder 1b on the side opposite to the rod 1 a. For convenience of explanation, the upper bracket 2 side is defined as the upper side of the suspension device 10, and the knuckle bracket 1c side is defined as the lower side of the suspension device 10, and the vertical direction is illustrated. The vertical direction of the suspension device 10 is the axial direction (central axial direction) of the suspension device 10, and is the expansion and contraction direction of the damper 1. Further, the radial direction of the suspension device 10 (the radial direction of the damper 1) is orthogonal to the axial direction of the suspension device 10.

The damper 1 is coupled to the vehicle body by the upper bracket 2, and is assembled to the vehicle by the knuckle bracket 1c being coupled to the knuckle. The damper 1 configured as described above is configured to generate a damping force when the rod 1a moves in the axial direction (the vertical direction in fig. 1) with respect to the cylinder 1 b. The suspension device 10 rapidly attenuates the vibration of the vehicle body by the damping force of the damper 1.

The coil spring 4 is disposed between the spring guide 100A and the upper bracket 2. The coil spring 4 is held in a compressed state by the upper bracket 100A and the upper bracket 2, and urges the damper 1 in the extending direction.

A rubber sheet 8 is provided between the upper holder 2 and the upper end portion of the coil spring 4. Thereby, the upper bracket 2 and the coil spring 4 are not directly abutted. An elastic portion 103A described later is provided between the main body 101 of the spring guide 100A and the lower end portion of the coil spring 4. Thereby, the body 101 of the spring guide 100A does not directly abut against the coil spring 4.

Fig. 2 is a perspective view of the spring guide 100A. As shown in fig. 1 and 2, the spring guide 100A is attached to the outer periphery of the cylinder 1b and supports the coil spring 4 from below. The spring guide 100A includes a main body 101 made of a resin material, and an elastic portion 103A integrally formed on an upper surface of the main body 101.

The main body 101 of the spring guide 100A includes: a disc-shaped base portion 110 on which the lower end portion of the coil spring 4 is placed; a cylindrical tube portion 112 formed to protrude upward and downward from the base portion 110; a side wall 111 extending obliquely upward from a radially outer end of the base portion 110; and a hub 113 provided on the outer peripheral side of the cylinder 112. The side wall 111 is annular and inclined so that the inner diameter increases upward from the base portion 110.

As shown in fig. 2, the base portion 110 has a placement area 110c set around the boss 113 of the spring guide 100A. The mounting region 110c is an arc-shaped region on which the lower end of the coil spring 4 is mounted. The range of the placement region 110c is set at an arbitrary angle of 180 degrees or more.

The tube portion 112 has an insertion hole 120 that penetrates in the axial direction (vertical direction) of the suspension device 10 and through which the cylinder 1b of the shock absorber 1 is inserted. As shown in fig. 1, the insertion hole 120 is formed at a position eccentric from the center of the spring guide 100A toward the vehicle body side when the spring guide 100A is attached to the outer periphery of the cylinder 1 b.

As shown in fig. 2, the insertion hole 120 is provided with a rib 122 as a convex portion protruding radially inward from the inner peripheral surface 121 thereof. The rib 122 functions as a support portion that supports the outer peripheral surface of the cylinder 1b of the damper 1. Each rib 122 is provided linearly along the axial direction of the insertion hole 120 (i.e., the axial direction of the suspension device 10).

The rib 122 is formed, for example, in such a manner that the sectional shape thereof becomes a trapezoidal shape with rounded corners or a semicircular shape, and is in line contact with the outer periphery of the cylinder 1 b. The plurality of ribs 122 are arranged at equal intervals along the circumferential direction of the insertion hole 120. Therefore, the spring guide 100A is positioned so that the central axis of the insertion hole 120 coincides with the central axis of the cylinder 1 b.

The fitting of the cylinder 1b to the insertion hole 120, specifically, the fitting of the cylinder 1b to the rib 122 (see fig. 2) formed in the insertion hole 120 may be "clearance fit" or "interference fit". In the case of "interference fit", the play between the insertion hole 120 and the cylinder 1b is eliminated, and the generation of abnormal sound due to the play can be prevented. In addition, the responsiveness of the operation of the suspension device 10 can also be improved.

As shown in fig. 1, a metal backup ring 3 is fixed to the outer peripheral surface of the cylinder 1b by welding. The support ring 3 is a support portion that supports the spring guide 100A. Instead of providing the support ring 3, the cylinder 1b may be expanded to form a support portion. The spring guide 100A is fitted to the outer periphery of the cylinder 1b through the insertion hole 120, and the lower end portion of the cylindrical portion 112 of the spring guide 100A is supported by the support ring 3 and attached to the outer periphery of the cylinder 1 b.

The spring guide 100A is fitted into the cylinder 1b from above, and is attached to the cylinder 1b by coming into contact with the support ring 3. In other words, the cylinder 1b is inserted from the lower opening end 125L of the insertion hole 120 of the spring guide 100A. That is, the lower open end 125L is an inlet into which the cylinder 1b is inserted, and the upper end of the cylinder 1b protrudes from an open end opposite to the lower open end 125L, that is, the upper open end 125U.

The boss 113 is provided inside the coil spring 4 so as to protrude upward from the base portion 110. The boss 113 has a bottomed cylindrical shape, and an upper portion 113b is a bottom portion and has an opening portion at a lower portion. A plurality of ribs are provided inside the cylindrical portion 113c of the hub 113 to improve the rigidity of the hub 113. The outer periphery of the cylindrical portion 113c of the rib 113 abuts against the inner periphery of the lower end portion of the coil spring 4, thereby defining the position in the radial direction of the coil spring 4. That is, the rib 113 functions as a position regulation portion that regulates the position of the lower end portion of the coil spring 4. Since the lower end portion of the coil spring 4 is held by the rib 113, the inclination (toppling) of the coil spring 4 is prevented.

The elastic portion 103A is made of a material having a lower elastic modulus than the resin material of the main body 101, and is integrally molded with the main body 101 made of resin. As a material of the elastic portion 103A, a thermoplastic elastomer such as a polyester elastomer, a polyurethane elastomer, a polyolefin elastomer, or a silicone elastomer is used. The material of the elastic portion 103A is not limited to a thermoplastic elastomer, and a thermosetting elastomer such as urethane rubber, silicone rubber, and fluororubber may be used. At least, the material of the elastic portion 103A is not limited to an elastic body as long as it has a lower elastic modulus than the resin material of the main body 101, and a resin material may be used.

The elastic portion 103A is integrally formed with the main body 101 by, for example, two-color molding. The material of the main body 101 and the material of the elastic portion 103A are selected from various materials, but preferably, the materials are selected in consideration of a combination of materials having high bonding force between the material of the main body 101 and the material of the elastic portion 103A.

The spring guide described in patent document 1 is configured to be positioned by fitting a protrusion of a rubber sheet into a hole of a spring support member when the rubber sheet is attached to the spring support member. That is, in the spring guide described in patent document 1, it is necessary to form irregularities for attaching a rubber sheet on the spring support member. The irregularities formed on the spring support member may cause a deviation of stress acting on the spring support member.

In contrast, in the present embodiment, since the elastic portion 103A is integrally formed with the main body portion 101, the number of irregularities of the main body portion 101 can be reduced as compared with the conventional art. As a result, the stress applied to the main body 101 can be prevented from being deviated. Further, since the mounting work in the case where the elastic portion 103A is formed to be different from the main body portion 101 can be omitted, the assembling workability of the suspension device 10 can be improved.

The region where the elastic portion 103A is formed will be described with reference to fig. 3A and 3B. Fig. 3A is a schematic plan view of the spring guide 100A as viewed from above, the shape thereof being simplified, and the formation region of the elastic portion 103A being schematically shown by hatching. Fig. 3B is a side cross-sectional view of the spring guide 100A.

As shown in fig. 3A and 3B, the elastic portion 103A is formed to cover the entire upper surface of the base portion 110 including the placement region 110c and the entire upper surface (inner side surface) of the side wall 111. The elastic portion 103A is formed in such a manner that its thickness is uniform.

In the present embodiment, the elastic portion 103A is formed in the mounting region 110 c. In the present embodiment, the elastic portion 103A is formed not only in the placement region 110c but also in the entire upper surface of the base portion 110 except for the placement region 110c and the entire upper surface (inner surface) of the side wall 111.

In other words, the elastic portion 103A includes: a first elastic sheet portion 131A integrally formed in an annular region including the placement region 110c in the base portion 110; and a second elastic sheet portion 132A integrally formed with the side wall 111 and a region of the base portion 110 radially outward of the placement region 110 c.

Since the first elastic sheet portion 131A is integrally formed in the mounting region 110c, the lower end portion of the coil spring 4 is prevented from directly contacting the main body 101. Therefore, the wear of the body 101 due to the lower end of the coil spring 4 when the suspension device 10 repeats compression and extension is prevented, and the life of the spring guide 100A can be increased. In addition, when the lower end portion of the coil spring 4 is directly supported by the main body 101, an abnormal sound may be generated between the lower end portion of the coil spring 4 and the main body 101. In contrast, in the present embodiment, the first elastic sheet portion 131A is provided between the lower end portion of the coil spring 4 and the main body portion 101 of the spring guide 100A, and therefore, generation of abnormal sound can be suppressed.

Further, a second elastic sheet portion 132A is integrally formed on the side wall 111 and a region radially outside the placement region 110c in the base portion 110. Therefore, in the case where the coil spring 4 is broken (broken), even if the broken portion of the coil spring 4 (for example, a broken portion of a fragment scattered when the coil spring 4 is broken, and a broken portion of the lower end of the upper coil spring 4 when the coil spring 4 is broken so as to be separated in the vertical direction) falls on the upper surfaces of the bottom seat portion 110 and the side wall 111, the second elastic sheet material portion 132A of the elastic portion 103A can absorb the impact from the broken portion. Thereby, the load acting on the body portion 101 of the spring guide 100A is dispersed. As a result, the base portion 110 and the side wall 111 of the spring guide 100A can be effectively prevented from being damaged.

The entire upper surface of the base portion 110 and the entire upper surface (inner surface) of the side wall 111 of the spring guide 100A are covered with the elastic portion 103A. This also prevents the main body 101 from being damaged by a collision with a flying stone or the like, which makes it difficult to predict the collision position.

According to the above embodiment, the following operational effects are obtained.

In the present embodiment, since the main body 101 of the spring guide 100A is formed of a resin material, it is possible to achieve weight reduction as compared with the case where the main body 101 is formed of a metal material. The elastic portion 103A is integrally formed with the main body 101, and the spring guide 100A is configured as one component. Therefore, the number of components of the spring guide 100A can be reduced as compared with a case where the main body 101 and the elastic portion 103A are formed separately and the elastic portion 103A is attached to the main body 101 by fitting or the like. That is, according to the present embodiment, the spring guide 100A can be reduced in weight, and the number of parts of the spring guide 100A can be reduced.

As a result, the suspension device 10 can be provided with a reduced weight without increasing the number of components.

< modification of the first embodiment >

In the first embodiment, the spring guide 100A (see fig. 2 and 3B) in which the base portion 110 is expanded radially outward of the placement region 110c and the side wall 111 extends obliquely upward from the radially outer end thereof has been described, but the present invention is not limited thereto. The side wall 111 can be omitted.

As shown in fig. 4A and 4B, the main body 201 of the spring guide 200A according to the present modification includes a circular base portion 210, and the base portion 210 has a width (radial dimension) slightly larger than the placement region 110 c. The main body 201 does not have the side wall 111 (see fig. 3B) described in the first embodiment at the radially outer end of the pedestal portion 210. In the present modification, the elastic portion 203A is formed so as to cover the entire upper surface of the base portion 210 including the placement region 110 c.

According to this modification, the number of components of the spring guide 200A can be reduced, as in the first embodiment. Further, the spring guide 200A can be made lighter than in the first embodiment.

< second embodiment >

A spring guide 100B according to a second embodiment of the present invention will be described with reference to fig. 5A and 5B. Hereinafter, description will be given mainly on differences from the first embodiment, and in the drawings, the same reference numerals are given to the same or corresponding structures as those described in the first embodiment, and description thereof will be omitted.

In the first embodiment, the elastic portion 103A is integrally formed with the base portion 110 and the side wall 111 (see fig. 3A and 3B). In contrast, in the second embodiment, the elastic portion 103B is integrally formed with not only the base portion 110 and the side wall 111 but also the boss 113 and the tube portion 112. A circular through hole 135B is formed in the elastic portion 103B, and the cylinder 1B is inserted into the through hole 135B.

The elastic portion 103B is formed to cover the entire upper surface of the hub 113 and the entire upper end surface of the cylinder portion 112. As described above, in the present second embodiment, the elastic portion 103B includes: a first elastic sheet portion 131B integrally formed in the placement region 110c of the base portion 110; a second elastic sheet portion 132B integrally formed with the side wall 111 and a radially outer region of the placement region 110c of the base portion 110; and a third elastic sheet portion 133B integrally formed with the boss 113 and the tube portion 112.

Vehicles are used in a variety of environments. For example, when the vehicle travels in an area with a large amount of snowfall, the suspension device 10 may come into contact with water containing a snow melting agent. The snow-melting agent comprises calcium chloride. Therefore, when water containing calcium chloride intrudes between the outer periphery of the cylinder 1b and the inner periphery of the insertion hole 120, the inner periphery of the insertion hole 120 may deteriorate and be damaged.

The through hole 135B formed in the third elastic sheet portion 133B of the elastic portion 103B is formed so that the inner peripheral portion thereof abuts against the outer periphery of the cylinder 1B over the entire periphery. The third elastic sheet portion 133B of the elastic portion 103B closes a gap between the cylinder 1B and the insertion hole 120 of the cylindrical portion 112 through which the cylinder 1B is inserted. Therefore, foreign matter such as sand or water can be prevented from entering the gap between the cylinder 1B and the insertion hole 120 by the third elastic sheet portion 133B in the elastic portion 103B. As a result, it is possible to prevent deterioration and damage due to the foreign matter entering the gap between the outer periphery of the cylinder 1b and the inner periphery of the insertion hole 120.

According to the second embodiment, the following operational effects are obtained in addition to the same operational effects as those of the first embodiment.

A third elastic sheet portion 133B is integrally formed on the boss 113 and the cylindrical portion 112 provided inside the coil spring 4. Therefore, even if the coil spring 4 is broken (broken), and a part of the broken coil spring 4 falls onto the upper surface of the boss 113 and the cylindrical portion 112, the impact from the broken portion of the coil spring 4 can be absorbed by the third elastic sheet portion 133B of the elastic portion 103B. Thereby, the load acting on the body portion 101 of the spring guide 100B is dispersed. As a result, the hub 113 and the cylindrical portion 112 can be prevented from being damaged.

Further, the third elastic sheet portion 133B of the elastic portion 103B prevents foreign matter such as sand and water from entering the gap between the cylinder 1B and the insertion hole 120, and thus can prevent deterioration and damage of the cylinder 1B.

The third elastic sheet portion 133B of the elastic portion 103B also covers the entire outer peripheral surface of the cylindrical portion 113c of the boss 113 between the upper portion 113B of the boss 113 and the base portion 110. This can prevent the outer peripheral surface of the cylindrical portion 113c of the hub 113 from being worn by the lower end portion of the coil spring 4.

< modification of the second embodiment >

In the second embodiment, the spring guide 100B (see fig. 5B) in which the base portion 110 is expanded radially outward of the placement region 110c and the side wall 111 extends obliquely upward from the radially outer end thereof has been described, but the present invention is not limited thereto. The side wall 111 can be omitted.

As shown in fig. 6A and 6B, the spring guide 200B according to the present modification is formed by integrally molding the elastic portion 203B to the hub 113 and the tube portion 112, as in the second embodiment, in comparison with the main body portion 201 (see fig. 4B) described in the modification of the first embodiment.

< third embodiment >

A spring guide 100C according to a third embodiment of the present invention will be described with reference to fig. 7A and 7B. Hereinafter, description will be given mainly on differences from the second embodiment, and in the drawings, the same reference numerals are given to the same or corresponding structures as those described in the second embodiment, and description thereof will be omitted.

In the second embodiment described above, the thickness of the elastic portion 103B is the same. In contrast, in the third embodiment, the thickness of the elastic portion 103C is not uniform.

When the coil spring 4 is broken, a part of the broken coil spring 4 falls into a region on the radially outer side of the mounting region 110c with respect to the radially inner side of the mounting region 110c in a large amount. In addition, when a part of the broken coil spring 4 falls down onto the spring guide 100C, a local excessive impact force may act when a sharp portion of the broken portion of the coil spring 4 comes into contact with the spring guide 100C.

Therefore, in the present embodiment, the thickness t2 of the second elastic sheet portion 132C formed in the radially outer region of the mounting region 110C is larger than the thickness t1 of the first elastic sheet portion 131C formed in the mounting region 110C (t2 > t 1). This allows the second elastic sheet portion 132C to more appropriately absorb the impact from the broken portion of the coil spring 4.

A through-hole 135C through which the cylinder 1b is inserted is formed in the third elastic sheet portion 133C, and an inner peripheral portion (radially inner end portion) of the through-hole 135C abuts against the cylinder 1 b. Therefore, if the thickness of the third elastic sheet portion 133C becomes excessively thick, when the spring guide 100C is attached to the cylinder 1b, it may take time to attach due to frictional resistance between the inner peripheral portion of the through-hole 135C and the outer peripheral portion of the cylinder 1 b.

In this third embodiment, the thickness t3 of the third elastic sheet part 133C formed on the boss 113 is thinner than the thickness t1 of the first elastic sheet part 131C (t3 < t 1). This can reduce the frictional resistance between the inner peripheral portion of the through-hole 135C of the third elastic sheet portion 133C and the outer peripheral portion of the cylinder 1b when the spring guide 100C is attached to the cylinder 1 b. As a result, the workability of attaching the spring guide 100C to the damper 1 can be improved.

According to the third embodiment, the same operational effects as those of the first embodiment are obtained. Further, the impact force from the broken portion of the coil spring 4 in the radially outer region of the placement region 110C can be absorbed more effectively, and the workability of attaching the spring guide 100C to the damper 1 can be improved.

< modification of the third embodiment >

In the third embodiment, the spring guide 100C (see fig. 7B) in which the pedestal portion 110 is expanded radially outward of the placement region 110C and the side wall 111 extends obliquely upward from the radially outer end thereof has been described, but the present invention is not limited thereto. The side wall 111 can be omitted.

As shown in fig. 8A and 8B, the spring guide 200C according to the present modification is configured such that, in the same manner as the third embodiment, an elastic portion 203C having a thickness different depending on the part of the main body 201 is integrally formed with the main body 201 (see fig. 4B) described in the modification of the first embodiment. The elastic portion 203C includes: a first elastic sheet portion 131C of thickness t1, which is integrally formed with the chassis portion 210; and a third elastic sheet portion 133C having a thickness t3, which is integrally formed with the boss 113 and the tube portion 112.

< fourth embodiment >

A spring guide 100D according to a fourth embodiment of the present invention will be described with reference to fig. 9A and 9B. Hereinafter, description will be given mainly on differences from the second embodiment, and in the drawings, the same reference numerals are given to the same or corresponding structures as those described in the second embodiment, and description thereof will be omitted.

In the second embodiment described above, an example in which the elastic portion 103B is formed of one material is explained. In contrast, in the fourth embodiment, a plurality of partial elastic sheet portions (the first elastic sheet portion 131D, the second elastic sheet portion 132D, and the third elastic sheet portion 133D) are formed of three different materials from each other, and the elastic portion 103D is configured by three kinds of partial elastic sheet portions.

The first elastic sheet portion 131D is integrally formed in an annular region including the placement region 110c in the base portion 110. The second elastic sheet portion 132D is integrally formed on the radially outer region of the placement region 110c of the base portion 110 and the upper surface (inner surface) of the side wall 111. The third elastic sheet portion 133D is integrally formed on the upper surface of the boss 113 and the upper end surface of the tube portion 112.

The second elastic sheet portion 132D is formed so as to cover the entire upper surface of the base portion 110 and the entire upper surface (inner side surface) of the side wall 111. Therefore, when the coil spring 4 is broken (broken), even if a part of the broken coil spring 4 falls onto the upper surfaces of the seat portion 110 and the side wall 111, the second elastic sheet portion 132D can absorb the impact from the broken portion. As a result, the base 110 and the side wall 111 can be prevented from being damaged.

When the material of the second elastic sheet portion 132D is a material having a lower elastic modulus than the material of the first elastic sheet portion 131D, the second elastic sheet portion 132D may be largely deformed when the sharp portion of the broken portion of the coil spring 4 collides with the second elastic sheet portion 132D. Therefore, the impact force is not sufficiently absorbed in the second elastic sheet portion 132D, but the impact force is transmitted to the main body portion 101 via the second elastic sheet portion 132D, and the main body portion 101 may be damaged.

In contrast, in the fourth embodiment, the second elastic sheet portion 132D is made of a material having a higher elastic modulus than the material of the first elastic sheet portion 131D. Therefore, when the sharp portion of the broken portion of the coil spring 4 collides with the second elastic sheet portion 132D, the amount of deformation of the second elastic sheet portion 132D is suppressed, and the impact force can be effectively absorbed in the second elastic sheet portion 132D. Accordingly, when a part of the broken coil spring 4 falls down to the base 110 and the side wall 111, the base 110 and the side wall 111 can be more effectively prevented from being broken.

A circular through hole 135D is formed in the third elastic sheet portion 133D, and the cylinder 1b is inserted into the through hole 135D. The third elastic sheet portion 133D is formed to cover the entire upper surface of the boss 113 and the entire upper end surface of the tube portion 112. Therefore, when the coil spring 4 is broken (broken), even if a part of the broken coil spring 4 falls on the upper surfaces of the boss 113 and the tube portion 112, the third elastic sheet portion 133D can absorb the impact from the broken portion. As a result, the hub 113 and the cylindrical portion 112 can be prevented from being damaged.

The through hole 135D of the third elastic sheet portion 133D is formed such that the inner peripheral portion thereof abuts against the outer periphery of the cylinder 1b over the entire periphery. The third elastic sheet portion 133D closes a gap between the cylinder 1b and the insertion hole 120 of the cylindrical portion 112 through which the cylinder 1b is inserted. With this, the third elastic sheet portion 133D can prevent foreign matter such as sand and water from entering the gap between the cylinder 1b and the insertion hole 120. Therefore, it is possible to prevent deterioration and damage due to the foreign matter entering the gap between the outer periphery of the cylinder 1b and the inner periphery of the insertion hole 120.

The third elastic sheet portion 133D is made of a material having a lower elastic modulus than the material of the first elastic sheet portion 131D. Therefore, even when the spring guide 100D is displaced in the axial direction with respect to the cylinder 1b during the operation of the damper 1, the third elastic sheet portion 133D appropriately follows the outer periphery of the cylinder 1 b. Therefore, during the operation of the damper 1, the clearance between the cylinder 1b and the insertion hole 120 by the third elastic sheet portion 133D is appropriately maintained in the closed state. Thereby, the sealing property between the outer periphery of the cylinder 1b and the inner periphery of the insertion hole 120 can be improved as compared with the case where the third elastic sheet portion 133D is made of a material having a higher elastic modulus than the material of the first elastic sheet portion 131D.

According to the fourth embodiment, the same operational effects as those of the second embodiment are obtained. Further, it is possible to more effectively prevent the main body 101 from being damaged by the broken portion of the broken coil spring 4 colliding with the radially outer region of the placement region 110 c. Further, the sealing property between the outer periphery of the cylinder 1b and the inner periphery of the insertion hole 120 can be further improved, and deterioration and damage due to the intrusion of foreign matter into the gap between the outer periphery of the cylinder 1b and the inner periphery of the insertion hole 120 can be more effectively prevented.

< modification of the fourth embodiment >

In the fourth embodiment, the spring guide 100D (see fig. 9B) in which the pedestal portion 110 is expanded radially outward of the placement region 110c and the side wall 111 extends obliquely upward from the radially outer end thereof has been described, but the present invention is not limited thereto. The side wall 111 can be omitted.

As shown in fig. 10A and 10B, the spring guide 200D according to the present modification example is configured such that, in comparison with the main body 201 (see fig. 4B) described in the modification example of the first embodiment, an elastic sheet portion having a different material depending on the position of the main body 201 is integrally molded, as in the fourth embodiment. The elastic portion 203D integrally formed with the main body 201 includes: a first elastic sheet portion 131D integrally formed with the base portion 210; and a third elastic sheet portion 133D integrally formed with the boss 113 and the tube portion 112. The third elastic sheet portion 133D is made of a material having a lower elastic modulus than the material of the first elastic sheet portion 131D.

The following modifications are also within the scope of the present invention, and the configurations shown in the modifications and the configurations described in the above embodiments may be combined, or the configurations described in the above different embodiments may be combined, or the configurations described in the following different modifications may be combined.

< modification 1 >

For example, the structure described in the third embodiment and the structure described in the fourth embodiment may be combined. As shown in fig. 11A and 11B, the elastic portion 103E of the spring guide 100E according to the present modification includes: a first elastic sheet portion 131E having a thickness t1 and integrally formed in an annular region including the placement region 110 c; a second elastic sheet portion 132E having a thickness t2 and integrally formed in a radially outer region of the placement region 110c and an upper surface (inner surface) of the side wall 111; and a third elastic sheet portion 133E having a thickness t3, which is integrally formed with the boss 113 and the tube portion 112. The sizes of the thicknesses t1, t2 and t3 are t3 < t1 < t 2. In addition, the elastic modulus of the second elastic sheet portion 132E is higher than that of the first elastic sheet portion 131E, and the elastic modulus of the third elastic sheet portion 133E is lower than that of the first elastic sheet portion 131E. According to the modification, the same operational effects as those of the third and fourth embodiments are obtained.

In the present modification and the third embodiment, the example in which the dimensional relationships among the thicknesses t1, t2, and t3 are t3 < t1 < t2 has been described, but the present invention is not limited to this. The magnitude relation of the thicknesses t1, t2, and t3 can be changed as appropriate by the specification of the suspension device 10. For example, the thickness t3 of the third elastic sheet part 133C may be thicker than the thickness t1 of the first elastic sheet part 131C. In this case, the impact force of the broken portion of the coil spring 4 falling on the upper surfaces of the boss 113 and the cylindrical portion 112 can be effectively absorbed, and the boss 113 and the cylindrical portion 112 can be effectively prevented from being broken.

In addition, the thickness t1 of the first elastic sheet portion 131C may be thicker than the thickness t2 of the second elastic sheet portion 132C. The thickness t1 of the first elastic sheet portion 131C affects the ride quality of the vehicle on which the suspension device 10 is mounted. By increasing the thickness t1 of the first elastic sheet portion 131C, the first elastic sheet portion 131C can sufficiently absorb the force acting on the coil spring 4 from the road surface in a state where the coil spring 4 is not broken and the vehicle body is normally elastically supported. This can improve the ride quality of the vehicle on which the suspension device 10 is mounted.

At this time, the thickness t2 of the second elastic sheet portion 132 is preferably set to be equal to or greater than a thickness that can appropriately absorb the impact from the broken portion of the coil spring 4. This improves the ride quality of the vehicle on which the suspension device 10 is mounted, and the second elastic sheet portion 132C can absorb the impact from the broken portion of the coil spring 4.

The thickness t1 of the first elastic sheet portion 131C may be different from place to place. That is, the magnitude relationship between the thickness t1 of the first elastic sheet portion 131C and the thickness t2 of the second elastic sheet portion 132C may be different depending on the location in the first elastic sheet portion 131C. For example, the first elastic sheet portion 131C may be formed so as to follow the shape of the coil spring 4 seated on the end of the first elastic sheet portion 131C by changing the thickness t1 of the first elastic sheet portion 131C. This enables the coil spring 4 to be stably placed.

< modification 2 >

In addition, the configuration described in the modification of the third embodiment and the configuration described in the modification of the fourth embodiment may be combined. As shown in fig. 12A and 12B, the elastic portion 203E of the spring guide 200E according to the present modification includes: a first elastic sheet portion 131E having a thickness t1 and integrally formed in an annular region including the placement region 110 c; and a third elastic sheet portion 133E having a thickness t3, which is integrally formed with the boss 113 and the tube portion 112. The size relation of the thicknesses t1 and t3 is t3 < t 1. In addition, the elastic modulus of the third elastic sheet part 133E is lower than that of the first elastic sheet part 131E.

In this modification and the fourth embodiment, an example in which the elastic modulus of the second elastic sheet portion 132D is higher than that of the first elastic sheet portion 131D and the elastic modulus of the third elastic sheet portion 133D is lower than that of the first elastic sheet portion 131D has been described, but the present invention is not limited thereto. The magnitude relation of the elastic modulus can be appropriately changed by the specification of the suspension device 10. For example, the third elastic sheet portion 133D may have an elastic modulus higher than that of the first elastic sheet portion 131C. In this case, the impact force of the broken portion of the coil spring 4 falling on the upper surfaces of the boss 113 and the cylindrical portion 112 can be effectively absorbed, and the boss 113 and the cylindrical portion 112 can be effectively prevented from being broken.

In addition, the elastic modulus of the first elastic sheet portion 131D is lower than that of the second elastic sheet portion 132D. The elastic modulus of the first elastic sheet portion 131D affects the ride quality of a vehicle on which the suspension device 10 is mounted. By increasing the elastic modulus of the first elastic sheet portion 131D, the impact acting on the coil spring 4 is sufficiently absorbed by the first elastic sheet portion 131D. This can improve the ride quality of the vehicle on which the suspension device 10 is mounted. In addition, the elastic modulus of the third elastic sheet portion 133D may be higher than that of the second elastic sheet portion 132D. The elastic modulus of the first elastic sheet portion 131D, the second elastic sheet portion 132D, and the third elastic sheet portion 133D may be all the same.

< modification 3 >

As shown in fig. 13, a seating portion 140 on which the lower end portion of the coil spring 4 is seated may be formed in the elastic portion 103F. The seating portion 140 has a curved surface whose cross section is curved so as to follow the cross-sectional shape of the coil spring 4. The seating portion 140 prevents the lower end portion of the coil spring 4 from being displaced radially outward. Thereby, the coil spring 4 can be held more stably by the spring guide 100F.

< modification 4 >

Although the example in which the base portions 110 and 210 of the main bodies 101 and 201 are disc-shaped has been described, the present invention is not limited thereto. The base portions 110 and 210 may have a polygonal plate shape.

< modification 5 >

As shown in fig. 14, a lip 136 provided in a through hole 135G formed in the third elastic sheet portion 133G may abut against the outer periphery of the cylinder 1 b. That is, the third elastic sheet portion 133G may have a lip portion 136 that contacts the outer periphery of the cylinder 1b of the damper 1. The lip 136 is provided so as to protrude from the third elastic sheet portion 133G toward the center side of the through-hole 135G. The lip 136 is provided over the entire circumference of the through-hole 135G. The lip 136 closes a gap between the cylinder 1b and the insertion hole 120 of the cylindrical portion 112 through which the cylinder 1b is inserted.

As in the second embodiment, the lip 136 can prevent deterioration and damage due to the intrusion of foreign matter into the gap between the outer periphery of the cylinder 1b and the inner periphery of the insertion hole 120.

In the second embodiment, the gap between the cylinder 1B and the insertion hole 120 is closed by the entire inner peripheral surface of the third elastic sheet portion 133B, and therefore, the inner peripheral surface of the third elastic sheet portion 133B has a fastening margin with respect to the cylinder 1B. Therefore, when the cylinder 1B is inserted into the insertion hole 120, a tightening force for tightening the cylinder 1B is generated by the interference of the third elastic sheet portion 133B. The greater the thickness of the third elastic sheet portion 133B, the greater the binding force is generated. Since the third elastic sheet portion 133B has a large thickness and a large axial area of the pressing cylinder 1B, it is difficult to move the third elastic sheet portion 133B with respect to the cylinder 1B by a large tightening force. Thereby, when a large force is applied to the third elastic sheet portion 133B when the cylinder 1B is inserted into the insertion hole 120, the third elastic sheet portion 133B and the boss 113 may be peeled off.

In contrast, in the present modification, the gap between the cylinder 1b and the insertion hole 120 is closed not only by the third elastic sheet portion 133G but also by the lip portion 136. Thereby, as compared with the second embodiment, the axial region of the third elastic sheet portion 133G pressing cylinder 1b can be reduced, and the third elastic sheet portion 133G can be easily moved relative to the cylinder 1 b. Thereby, the force applied to the third elastic sheet portion 133G when the cylinder 1b is inserted into the insertion hole 120 becomes small, and the separation of the third elastic sheet portion 133G and the boss 113 can be suppressed. The third elastic sheet portion 133G may be third elastic sheet portions 133B, 133C, 133D, 133E, 133F.

The structure, operation, and effects of the embodiments of the present invention configured as above will be summarized.

Spring guides 100A, 100B, 100C, 100D, 100E, 100F, 200A, 200B, 200C, 200D, and 200E, which are attached to a shock absorber 1 provided between a vehicle body and a wheel and support a coil spring 4 that elastically supports the vehicle body, include: main bodies 101 and 201 made of a resin material; elastic portions 103A, 103B, 103C, 103D, 103E, 103F, 203A, 203B, 203C, 203D, 203E provided between the main body 101, 201 and the end portion of the coil spring 4, and the elastic portions 103A, 103B, 103C, 103D, 103E, 103F, 203A, 203B, 203C, 203D, 203E are formed of a material having a lower elastic modulus than the material of the main body 101, 201 and are integrally molded with the main body 101, 201.

In this configuration, since the main bodies 101 and 201 of the spring guides 100A, 100B, 100C, 100D, 100E, 100F, 200A, 200B, 200C, 200D, and 200E are formed of a resin material, weight reduction can be achieved as compared with a case where the main bodies 101 and 201 are formed of a metal material. Further, since the elastic portions 103A, 103B, 103C, 103D, 103E, 103F, 203A, 203B, 203C, 203D, and 203E are integrally formed with the main bodies 101 and 201, the number of components can be reduced as compared with a case where the main bodies 101 and 201 and the elastic portions 103A, 103B, 103C, 103D, 103E, 103F, 203A, 203B, 203C, 203D, and 203E are formed separately.

The body 101 of the spring guide 100A, 100B, 100C, 100D, 100E, 100F includes: a disc-shaped base portion 110 having a placement region 110c for placing the coil spring 4; a side wall 111 extending upward from a radially outer end of the base 110, and the elastic portions 103A, 103B, 103C, 103D, 103E, and 103F include: first elastic sheet portions 131A, 131B, 131C, 131D, and 131E integrally formed in the placement region 110C of the chassis portion 110; the second elastic sheet portions 132A, 132B, 132C, 132D, 132E are integrally formed with the side wall 111 and a region radially outside the placement region 110C in the base portion 110.

In this configuration, the second elastic sheet portions 132A, 132B, 132C, 132D, and 132E are integrally formed in the region of the base portion 110 radially outside the placement region 110C and the side wall 111. Therefore, even if the coil spring 4 is broken and a part of the broken coil spring 4 falls down to the seat portion 110 and the side wall 111, the impact from the broken portion of the coil spring 4 can be absorbed by the second elastic sheet portions 132A, 132B, 132C, 132D, and 132E, and therefore, the seat portion 110 and the side wall 111 of the spring guides 100A, 100B, 100C, 100D, 100E, and 100F can be effectively prevented from being broken.

The thickness t1 of the first elastic sheet part 131C of the spring guide 100C may also be thicker than the thickness t2 of the second elastic sheet part 132C.

In this configuration, in a state where the coil spring 4 is not broken and the vehicle body is normally elastically supported, the force acting on the coil spring 4 from the road surface can be sufficiently absorbed by the first elastic sheet member portion 131C. This can improve the ride quality of the vehicle on which the suspension device 10 is mounted.

The thickness t2 of the second elastic sheet part 132C, 132E of the spring guide 100C, 100E is thicker than the thickness t1 of the first elastic sheet part 131C, 131E.

The second elastic sheet portions 132D, 132E of the spring guides 100D, 100E are made of a material having a higher elastic modulus than the material of the first elastic sheet portions 131D, 131E.

In the above configuration, when a part of the broken coil spring 4 falls down to the base portion 110 and the side wall 111, the breakage of the base portion 110 and the side wall 111 can be more effectively prevented.

The body portions 101, 201 of the spring guides 100B, 100C, 100D, 100E, 100F, 200B, 200C, 200D, 200E have: disc-shaped base portions 110 and 210 on which the lower end portions of the coil springs 4 are placed; a position regulation unit (boss 113) provided inside the coil spring 4 so as to protrude from the base unit 110, 210 and regulating the position of the lower end of the coil spring 4, wherein the elastic units 103B, 103C, 103D, 103E, 103F, 203B, 203C, 203D, 203E include: first elastic sheet portions 131B, 131C, 131D, 131E integrally formed with the chassis portions 110, 210; the third elastic sheet portions 133B, 133C, 133D, 133E are integrally formed with the position regulation portion (the boss 113).

In this configuration, the third elastic sheet portions 133B, 133C, 133D, 133E are integrally formed with the position regulation portion (the boss 113) disposed inside the coil spring 4. Therefore, even if the coil spring 4 is broken and a part of the broken coil spring 4 falls down to the position regulating portion (the boss 113), the impact from the broken portion of the coil spring 4 can be absorbed by the third elastic sheet portions 133B, 133C, 133D, and 133E, and therefore, the position regulating portion (the boss 113) of the spring guides 100B, 100C, 100D, 100E, 100F, 200B, 200C, 200D, and 200E can be effectively prevented from being broken.

The main bodies 101, 201 of the spring guides 100B, 100C, 100D, 100E, 100F, 200B, 200C, 200D, 200E have cylindrical tube portions 112 through which the cylinder 1B of the damper 1 is inserted, and the third elastic sheet portions 133B, 133C, 133D, 133E close gaps between the cylinder 1B and the insertion hole 120 of the tube portion 112 through which the cylinder 1B is inserted.

In this configuration, the third elastic sheet portions 133B, 133C, 133D, and 133E can prevent foreign matter such as sand and water from entering the gap between the cylinder 1B and the insertion hole 120.

The third elastic sheet material portions 133B, 133C, 133D, 133E, 133F of the spring guides 100B, 100C, 100D, 100F, 200B, 200C, 200D, 200E have lips 136 that contact the cylinder 1B of the shock absorber 1 and close the gap between the cylinder 1B and the insertion hole 120.

In this structure, when the cylinder 1B is inserted into the insertion hole 120, a force in the insertion direction of the cylinder 1B is hardly applied to the third elastic sheet portions 133B, 133C, 133D, 133E, 133F. This can suppress the third elastic sheet parts 133B, 133C, 133d, 133E, 133F from peeling from the boss 113.

The thickness t3 of the third elastic sheet part 133C, 133E of the spring guide 100C, 100E, 200C, 200E is thinner than the thickness t1 of the first elastic sheet part 131C, 131E.

In this configuration, the frictional resistance between the third elastic sheet portions 133C and 133E and the outer peripheral portion of the cylinder 1b when the spring guides 100C, 100E, 200C, and 200E are attached to the cylinder 1b can be reduced. As a result, the workability of attaching the spring guides 100C and 100E to the damper 1 can be improved.

The third elastic sheet portions 133D, 133E of the spring guides 100D, 100E, 200D, 200E are made of a material having a lower elastic modulus than the material of the first elastic sheet portions 131D, 131E.

In this configuration, even if the spring guides 100D, 100E, 200D, and 200E are axially displaced with respect to the cylinder 1b during operation of the damper 1, the third elastic sheet portions 133D and 133E can appropriately follow the outer periphery of the cylinder 1b, and the third elastic sheet portions 133D and 133E can close the space between the cylinder 1b and the insertion hole 120.

The suspension device 10 includes: the above-described spring guides 100A, 100B, 100C, 100D, 100E, 100F, 200A, 200B, 200C, 200D, 200E; a shock absorber 1; an upper bracket 2 attached to a tip end of a rod 1a of the shock absorber 1; a coil spring 4 provided between the spring guides 100A, 100B, 100C, 100D, 100E, 100F, 200A, 200B, 200C, 200D, 200E and the upper bracket 2; and a metal support portion (support ring 3) that is fixed to the cylinder 1B of the damper 1 and supports the spring guides 100A, 100B, 100C, 100D, 100E, 100F, 200A, 200B, 200C, 200D, and 200E.

In this configuration, since the spring guides 100A, 100B, 100C, 100D, 100E, 100F, 200A, 200B, 200C, 200D, and 200E are provided, the suspension device 10 can be provided that is lightweight without increasing the number of components.

Although the embodiments of the present invention have been described above, the above embodiments are merely some of application examples of the present invention, and the technical scope of the present invention is not limited to the specific configurations of the above embodiments.

The application claims priority based on Japanese patent application 2019-.