阅读说明：本技术 一种汽车座椅头枕及汽车 (Car seat headrest and car ) 是由 赵学礼 马云霞 于 2020-06-03 设计创作，主要内容包括：本发明公开了一种汽车座椅头枕及汽车,涉及汽车座椅技术领域,包括：头枕本体,底部开设有槽；头枕杆,一端与座椅相连接,另一端设置于槽内；转轴支架,设置于头枕杆的一侧,设置于槽内；转轴,设置于转轴支架上,与转轴支架转动连接；连接板,与转轴相连接,与头枕本体相连接；配重块,设置于连接板上；棘轮,设置于转轴上；棘爪轴,设置于转轴的一侧,与转轴平行,与转轴支架相连接；棘爪盘,套设于棘爪轴上,与棘爪轴转动连接,棘爪盘上设置有与棘轮相配合的棘爪；复位簧,复位簧一端与棘爪轴相连接,另一端与棘爪盘相连接；该头枕能够在碰撞时使得头枕本体相对于头枕杆主动转动,提升颈部保护能力,并且该头枕结构简单,成本低廉。(The invention discloses an automobile seat headrest and an automobile, and relates to the technical field of automobile seats, and the automobile seat headrest comprises: the bottom of the headrest body is provided with a groove; one end of the headrest rod is connected with the seat, and the other end of the headrest rod is arranged in the groove; the rotating shaft bracket is arranged on one side of the headrest rod and is arranged in the groove; the rotating shaft is arranged on the rotating shaft bracket and is rotationally connected with the rotating shaft bracket; the connecting plate is connected with the rotating shaft and the headrest body; the balancing weight is arranged on the connecting plate; the ratchet wheel is arranged on the rotating shaft; the pawl shaft is arranged on one side of the rotating shaft, is parallel to the rotating shaft and is connected with the rotating shaft bracket; the pawl disc is sleeved on the pawl shaft and is rotationally connected with the pawl shaft, and a pawl matched with the ratchet wheel is arranged on the pawl disc; one end of the reset spring is connected with the pawl shaft, and the other end of the reset spring is connected with the pawl disc; the headrest can enable the headrest body to actively rotate relative to the headrest rod when in collision, the neck protection capacity is improved, and the headrest is simple in structure and low in cost.)

1. A headrest for a seat of a vehicle, comprising:

the bottom of the headrest body is provided with a groove;

one end of the headrest rod is connected with the seat, and the other end of the headrest rod is arranged in the groove;

the rotating shaft bracket is arranged on one side of the headrest rod and is arranged in the groove;

the rotating shaft is arranged on the rotating shaft bracket and is rotationally connected with the rotating shaft bracket;

the connecting plate is connected with the rotating shaft and the headrest body;

the balancing weight is arranged on the connecting plate;

the ratchet wheel is arranged on the rotating shaft;

the pawl shaft is arranged on one side of the rotating shaft, is parallel to the rotating shaft and is connected with the rotating shaft bracket;

the pawl disc is sleeved on the pawl shaft and is rotationally connected with the pawl shaft, and a pawl matched with the ratchet wheel is arranged on the pawl disc;

and one end of the reset spring is connected with the pawl shaft, and the other end of the reset spring is connected with the pawl disc.

2. The headrest of claim 1, wherein a groove is formed on an outer circumference of the ratchet plate, an inclined surface is formed on a side wall of the groove, a locking opening rod is inserted into the headrest body, and one end of the locking opening rod is engaged with the inclined surface.

3. The headrest for vehicle seats according to claim 2, wherein the other end of the lock open lever is provided outside the headrest body, and the lock open lever is slidably engaged with the headrest body.

4. The headrest for car seats according to claim 1, wherein a gap is provided between said headrest rod and an inner wall of said groove.

5. The headrest for car seats according to claim 1, wherein the headrest rod is U-shaped, an open end of the U-shaped headrest rod is connected to the seat, and the other end is disposed in the groove, and two of the pivot brackets are provided, and the pivot is erected on one side of the headrest rod through the two pivot brackets.

6. The headrest for vehicle seats according to claim 1, wherein the connecting plate includes a bottom plate and two side plates perpendicular to the bottom plate, the side plates having holes, the holes being rotatably engaged with the rotation shaft, and an upper end of the bottom plate being connected to the headrest body.

7. The headrest for car seats according to claim 2, wherein the return spring is L-shaped, one end of the L-shaped return spring is inserted into the ratchet shaft, and the other end is inserted into the ratchet plate.

8. The headrest for car seats according to claim 7, wherein the return spring is made of a spring steel wire.

9. The headrest for car seats of claim 1, wherein said weight is a sanding weight.

10. An automobile comprising the automobile seat headrest according to any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of automobile seats, and particularly relates to an automobile seat headrest and an automobile.

Background

The automobile industry is more and more competitive, collision safety becomes an important part of product competition of various host factories, and the seat is used as an important part in direct contact with passengers and bears an important safety protection role.

Seat neck injury protection is an important index of seat safety performance, and although conventional seats can provide various comfortable use positions, the comfortable use position of a headrest does not provide good neck injury protection in a collision, particularly a rear-end collision, so that an active headrest is one of important means for improving neck protection capability. At present, the existing active headrest is complex in structure, high in cost and heavy in weight, and the cost and the weight of the whole vehicle are increased.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an automobile seat headrest and an automobile.

In order to achieve the above object, the present invention provides an automobile seat headrest, including:

the bottom of the headrest body is provided with a groove;

one end of the headrest rod is connected with the seat, and the other end of the headrest rod is arranged in the groove;

the rotating shaft bracket is arranged on one side of the headrest rod and is arranged in the groove;

the rotating shaft is arranged on the rotating shaft bracket and is rotationally connected with the rotating shaft bracket;

the connecting plate is connected with the rotating shaft and the headrest body;

the balancing weight is arranged on the connecting plate;

the ratchet wheel is arranged on the rotating shaft;

the pawl shaft is arranged on one side of the rotating shaft, is parallel to the rotating shaft and is connected with the rotating shaft bracket;

the pawl disc is sleeved on the pawl shaft and is rotationally connected with the pawl shaft, and a pawl matched with the ratchet wheel is arranged on the pawl disc;

and one end of the reset spring is connected with the pawl shaft, and the other end of the reset spring is connected with the pawl disc.

Optionally, a groove is formed in the periphery of the pawl disc, an inclined surface is arranged on the side wall of the groove, a locking opening rod penetrates through the headrest body, and one end of the locking opening rod is matched with the inclined surface.

Optionally, the other end of the locking opening rod is arranged outside the headrest body, and the locking opening rod is in sliding fit with the headrest body.

Optionally, a gap is provided between the headrest rod and an inner wall of the groove.

Optionally, the headrest rod is U-shaped, an open end of the U-shaped headrest rod is connected with the seat, the other end of the U-shaped headrest rod is disposed in the groove, the number of the rotating shaft supports is two, and the rotating shaft is erected on one side of the headrest rod through the two rotating shaft supports.

Optionally, the connecting plate includes a bottom plate and two side plates perpendicular to the bottom plate, the side plates are provided with holes, the holes are in running fit with the rotating shaft, and the upper end of the bottom plate is connected with the headrest body.

Optionally, the return spring is L-shaped, one end of the L-shaped return spring penetrates through the pawl shaft, and the other end of the L-shaped return spring penetrates through the pawl disc.

Optionally, the return spring is made of a spring steel wire.

Optionally, the counterweight is a foundry counterweight.

The invention further provides an automobile which comprises the automobile seat headrest.

The invention provides an automobile seat headrest and an automobile, which have the beneficial effects that:

1. when the automobile is in rear-end collision, the headrest can convert the backward inertia of the balancing weight into forward movement of the upper end of the headrest, so that the neck protection capability of passengers is improved;

2. the headrest has a simple structure, saves cost, and balances cost, weight and performance;

3. this headrest passes through the locking of ratchet pawl structure realization to the headrest, can control the position control of headrest through the cooperation of locking opening lever and pawl dish, realizes the initiative rotation function of headrest and the fixed function of headrest, makes things convenient for the regulation of headrest position.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.

Fig. 1 is a schematic view showing a structure of mounting a headrest on a seat of a car seat according to an embodiment of the present invention.

Fig. 2 shows a three-dimensional structural view of a headrest for a seat of an automobile according to an embodiment of the present invention.

Fig. 3 is a three-dimensional structural view showing a pivoting structure inside a headrest of a seat for an automobile according to an embodiment of the present invention.

Fig. 4 is a front view schematically illustrating a pivoting structure inside a headrest of a seat for a vehicle according to an embodiment of the present invention.

Fig. 5 is a side view schematically illustrating a rotation structure of an inside of a headrest of a seat for a car according to an embodiment of the present invention.

Fig. 6 shows a schematic view of the structure of the headrest of the seat of the automobile in the direction of a in fig. 4 according to an embodiment of the invention.

Fig. 7 is a schematic view of a structure of a headrest for a seat of a vehicle in a direction of B in fig. 6 according to an embodiment of the present invention.

Description of reference numerals:

1. a headrest body; 2. a groove; 3. a headrest rod; 4. a seat; 5. a rotating shaft bracket; 6. a rotating shaft; 7. a connecting plate; 8. a balancing weight; 9. a ratchet wheel; 10. a pawl shaft; 11. a pawl plate; 12. a pawl; 13. a reset spring; 14. a groove; 15. a bevel; 16. a lock-open lever; 17. a base plate; 18. side plates.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The present invention provides a headrest for a seat of an automobile, including:

the bottom of the headrest body is provided with a groove;

one end of the headrest rod is connected with the seat, and the other end of the headrest rod is arranged in the groove;

the rotating shaft bracket is arranged on one side of the headrest rod and is arranged in the groove;

the rotating shaft is arranged on the rotating shaft bracket and is rotationally connected with the rotating shaft bracket;

the connecting plate is connected with the rotating shaft and the headrest body;

the balancing weight is arranged on the connecting plate;

the ratchet wheel is arranged on the rotating shaft;

the pawl shaft is arranged on one side of the rotating shaft, is parallel to the rotating shaft and is connected with the rotating shaft bracket;

the pawl disc is sleeved on the pawl shaft and is rotationally connected with the pawl shaft, and a pawl matched with the ratchet wheel is arranged on the pawl disc;

and one end of the reset spring is connected with the pawl shaft, and the other end of the reset spring is connected with the pawl disc.

Specifically, the headrest body can rotate around the rotating shaft through the headrest rotating mechanism, and the position adjusting function of the headrest body and the active position adjusting function of the headrest body during rear-end collision are met when the headrest is in normal use; the balancing weight is installed on the rotating shaft through the connecting plate, and when rear-end collision occurs, the balancing weight can move backwards under the action of inertia, so that the connecting plate rotates around the rotating shaft to drive the upper end of the headrest body to move forwards, and the protection of the headrest body on the neck of a passenger is improved; the pawls of the pawl disc are clamped in the gear teeth of the ratchet wheel in a normal state, and the reset spring can keep the position of the pawl disc unchanged so as to fix the ratchet wheel on the rotating shaft, so that the rotating shaft cannot rotate and fix the headrest body; when rear-end collision happens, the balancing weight moves backwards due to the inertia effect to drive the connecting plate and the rotating shaft to rotate, the ratchet wheel rotates to drive the gear teeth to overcome the elasticity of the reset spring to realize the rotation of the ratchet wheel, after the rotation stops, the pawl disc immediately rotates to reset due to the elasticity effect of the reset spring, the pawl is driven to be clamped into the gear teeth of the ratchet wheel, the locking and the fixing of the rotating shaft are realized again, and then the headrest body is fixed.

Optionally, a groove is formed in the periphery of the pawl disc, an inclined plane is arranged on the side wall of the groove, a locking opening rod penetrates through the headrest body, and one end of the locking opening rod is matched with the inclined plane.

Optionally, the other end of the locking opening rod is arranged outside the headrest body, and the locking opening rod is in sliding fit with the headrest body.

Specifically, the end part of the locking opening rod is matched with the inclined plane on the side wall of the groove, when one end of the locking opening rod exposed out of the headrest body is pressed, the locking opening rod moves towards the inclined plane to apply pressing force to the inclined plane, the pressing force is generated to be vertical to the inclined plane when acting on the inclined plane, the separation does not pass through the center of the pawl shaft, and then torque around the center of the pawl shaft is generated, so that the pawl disc rotates relative to the pawl shaft to drive the pawl to rotate to fall off gear teeth of the ratchet wheel, the locking of the ratchet wheel is released, and at the moment, the headrest body can be rotated by moving the headrest body, and the position of the headrest body is adjusted; and the pressed locking opening rod is loosened, the pawl resets under the action of the reset spring and is clamped into the gear teeth of the ratchet wheel, the headrest body with the adjusted position is positioned again, and the reset spring keeps the position of the pawl and further keeps the positioning.

Optionally, a first limiting ring is arranged on the locking opening rod, a second limiting ring is arranged on the headrest body, a spring is sleeved on the locking opening rod, and the spring is arranged between the first limiting ring and the second limiting ring.

Specifically, first spacing ring and second spacing ring can enough prevent that the locking opening lever from this internal roll-off of headrest, can cooperate the spring to realize pressing the locking opening lever back locking opening lever's that resets again.

In another example, the rotating shaft is provided with ratchet wheel teeth, and the ratchet wheel teeth on the rotating shaft can replace a ratchet wheel to realize the function of the ratchet wheel.

Optionally, a gap is provided between the headrest rods and the inner wall of the slot.

Specifically, the gap between the headrest rod and the inner wall of the groove enables the headrest body to rotate relative to the headrest rod, and a space is provided for rotation.

Optionally, the headrest rod is U-shaped, an open end of the U-shaped headrest rod is connected with the seat, the other end of the U-shaped headrest rod is disposed in the groove, the two rotating shaft supports are provided, and the rotating shaft is erected on one side of the headrest rod through the two rotating shaft supports.

Specifically, two pivot supports set up the homonymy at the headrest pole of U-shaped, and the height is the same, and pivot hole has been seted up at pivot support middle part, pivot and pivot hole normal running fit.

Optionally, the connecting plate includes a bottom plate and two side plates perpendicular to the bottom plate, the side plates are provided with holes, the holes are in running fit with the rotating shaft, and the upper end of the bottom plate is connected with the headrest body.

Specifically, two side plates of the connecting plate are arranged between the two rotating shaft supports, and the width of the connecting plate is smaller than that of the U-shaped opening of the U-shaped headrest rod, so that the connecting plate can pass through the U-shaped opening of the headrest rod.

Optionally, the return spring is L-shaped, one end of the L-shaped return spring penetrates through the pawl shaft, and the other end of the L-shaped return spring penetrates through the pawl disc.

Optionally, the return spring is made of a spring steel wire.

Specifically, the spring steel wire is made of 65Mn, piano steel, 1Cr18Ni9Ti and the like.

Optionally, the counterweight is a foundry counterweight.

Specifically, the turning-over balancing weight is a cast iron balancing weight, and in other examples, a plastic sand-filling balancing weight, a mixed-pressing balancing weight or a stone-like environment-friendly balancing weight and the like can also be used.

The invention further provides an automobile which comprises the automobile seat headrest.