阅读说明：本技术 作业车辆 (Working vehicle ) 是由 工藤纯子 于 2015-10-20 设计创作，主要内容包括：本发明的目的在于,提供一种具备设计性高的尾灯的作业车辆。因此,作为作业车辆的拖拉机(1)具备尾灯(18、19)。尾灯(18、19)沿着位于驾驶座(170)后方的后支柱(163、164)的长度方向,以从后支柱(163、164)的长度方向的一端附近延续至另一端附近的方式设置。尾灯(18、19)具有：灯罩、收容于灯罩的光源、覆盖灯罩的开口部的配光镜、以及覆盖配光镜的外表面的透光性配光镜罩。在尾灯还能设置作业灯、作业机升降开关、背射部等。(The invention aims to provide a work vehicle with a tail lamp with high design. Therefore, the tractor (1) as a working vehicle is provided with tail lamps (18, 19). The tail lights (18, 19) are provided along the longitudinal direction of the rear pillars (163, 164) located behind the driver seat (170) so as to extend from the vicinity of one end to the vicinity of the other end of the rear pillars (163, 164) in the longitudinal direction. The tail light (18, 19) has: the light source module includes a lamp cover, a light source housed in the lamp cover, a lens covering an opening of the lamp cover, and a light transmissive lens cover covering an outer surface of the lens. The tail lamp may be provided with a work lamp, a work machine up-down switch, a backlight unit, and the like.)

1. A work vehicle provided with a cab and a lamp, the lamp comprising: a lamp shade; and a light source accommodated in the lamp housing,

the cab is provided with a pair of left and right pillars,

the lamp housing is configured along an outer surface of the post,

the lamp cover is disposed to overlap the pillar in a length direction of the pillar.

2. The work vehicle according to claim 1,

the lamp is a tail lamp, the pillar is a rear pillar,

the lamp cover is arranged to overlap the rear pillar from above to below in the length direction of the rear pillar.

3. The work vehicle according to claim 2,

the outer surface of the rear pillar is bent to be convex outward,

the lamp cover is curved along an outer surface of the rear pillar.

4. The work vehicle according to claim 2 or claim 3,

the rear light is shielded by the rear pillar when viewed from the driver seat.

5. The work vehicle according to any one of claims 2 to 4,

the light source constitutes a rear position lamp, a brake lamp and a turn lamp.

6. The work vehicle according to any one of claims 1 to 4,

the tail lamp includes a lens for covering an opening of the cover.

7. The work vehicle according to claim 6,

the tail lamp is provided with a light-transmitting light distribution lens cover covering the outer surface of the light distribution lens.

8. The work vehicle according to any one of claims 2 to 7,

and the outer surface of the rear support is provided with an operating machine lifting switch.

Technical Field

The present invention relates to a work vehicle provided with a tail lamp.

Background

Conventionally, work vehicles such as a tractor for farming (see patent document 1) and a wheel loader for civil engineering work are known. In general, such a work vehicle includes a tail lamp. The tail lights include a back light, a stop light, and a turn signal light.

The tail lamp may be arranged at a predetermined position, and usually, the tail lamp of the work vehicle is independently attached to an upper portion of the rear fender or the like.

Disclosure of Invention

Problems to be solved by the invention

However, when the tail lamp is determined to be arranged, the tail lamp must be arranged so as to avoid the drive wheel, and therefore, the degree of freedom of arrangement may be reduced for a work vehicle or the like having a large drive wheel. Therefore, the taillight may be disposed at a predetermined position, which may reduce design from the rear of the work vehicle.

The invention aims to provide a work vehicle with a tail lamp with high design.

Means for solving the problems

The present invention provides a work vehicle including a tail lamp, the tail lamp including: a lamp cover arranged along the length direction of a rear support positioned behind the driver seat; and the light source is accommodated in the lampshade.

The work vehicle described above may be designed such that: the tail light is provided so as to extend from the vicinity of one end to the vicinity of the other end in the longitudinal direction of the rear pillar.

Further, the work vehicle described above may be designed such that: the vehicle is provided with a cab including the rear pillar.

Further, the work vehicle described above may be designed such that: the outer surface of the rear pillar is curved in a convex shape toward the outside, and the lamp cover is curved along the outer surface of the rear pillar.

Further, the work vehicle described above may be designed such that: the tail light is shielded by the rear pillar when viewed from the driver seat.

Further, the work vehicle described above may be designed such that: the light source constitutes a rear position lamp, a brake lamp and a turn lamp.

Further, the work vehicle described above may be designed such that: the tail lamp has a lens that covers an opening of the lamp cover.

Further, the work vehicle described above may be designed such that: the tail lamp is provided with a light-transmitting light distribution lens cover, and the light distribution lens cover covers the outer surface of the light distribution lens.

Further, the work vehicle described above may be designed such that: the tail lamp is provided with an operation lamp.

Further, the work vehicle described above may be designed such that: the tail lamp is provided with an operating machine lifting switch.

Further, the work vehicle described above may be designed such that: the tail lamp is provided with a backlight unit.

Effects of the invention

According to the work vehicle of the present invention, the tail lamp is provided along the longitudinal direction of the rear pillar located behind the driver's seat, so that the tail lamp and the rear pillar have a sense of unity, and the work vehicle has high design properties.

Further, according to the work vehicle of the present invention, the tail lamp is provided so as to extend from the vicinity of one end of the rear pillar in the longitudinal direction to the vicinity of the other end, so that the feeling of integration of the tail lamp and the rear pillar is enhanced, and the design is high. Further, since the tail lamp is elongated in the vertical direction, visibility is also good. Further, the tail light extends to the vicinity of the roof, and the electric wiring to the tail light can be shortened by guiding through the roof.

Further, according to the work vehicle of the present invention, since the cab including the rear pillar is provided, the work vehicle can be applied to a tractor including the cab.

Further, according to the work vehicle of the present invention, the outer surface of the rear pillar is curved in a convex shape outward, and the globe is curved along the outer surface of the rear pillar, whereby the globe and the rear pillar have a sense of unity, and the design is high.

Further, according to the work vehicle of the present invention, the light from the tail lamp does not enter the field of view of the operator and thus does not interfere with the driving operation by shielding the tail lamp from the driver's seat by the rear pillar.

Further, according to the work vehicle of the present invention, the light source constitutes a rear position lamp, a stop lamp, and a turn lamp, whereby the tail lamp can be used as a rear combination lamp.

Further, according to the work vehicle of the present invention, the tail lamp has the lens covering the opening of the cover, thereby diffusing the light from the light source.

Further, according to the work vehicle of the present invention, the tail lamp has the light transmissive light distribution lens cover covering the outer surface of the light distribution lens, thereby improving design properties.

Further, according to the work vehicle of the present invention, since the tail lamp is provided with the work lamp, the work machine up-down switch, or the backlight unit, the number of members to be independently attached to the rear portion of the work vehicle is reduced, and the design is improved.

Drawings

Fig. 1 is an external perspective view of a tractor.

Fig. 2 is a front view of the tractor.

Fig. 3 is a rear view of the tractor.

Fig. 4 is a right side view of the tractor.

Fig. 5 is a left side view of the tractor.

Fig. 6 is a top view of the tractor.

Fig. 7 is an enlarged front view of the left tail lamp.

Fig. 8 is an enlarged rear view of the left tail lamp.

Fig. 9 is an enlarged right side view of the left tail lamp.

Fig. 10 is an enlarged left side view of the left tail lamp.

Fig. 11 is an enlarged plan view of the left tail lamp.

Fig. 12 is an enlarged bottom view of the left tail lamp.

Fig. 13 is a view of fig. 8 with the lens and the lens cover removed.

Fig. 14 is a view of fig. 9 with the lens and the lens cover removed.

Fig. 15 is a view of fig. 10 with the lens and the lens cover removed.

Fig. 16 is a view of fig. 11 with the lens and the lens cover removed.

Fig. 17 is a diagram illustrating a positional relationship between the left tail light and the left rear pillar.

Detailed Description

The technical idea of the present invention can be applied to all work vehicles such as agricultural machine vehicles and construction machine vehicles. Hereinafter, a tractor as a representative working vehicle will be described. Hereinafter, the front, rear, up, down, left, and right directions are directions as viewed from the driver's seat (when seated).

Fig. 1 is a perspective view of a tractor, fig. 2 is a front view of the tractor, fig. 3 is a rear view of the tractor, fig. 4 is a right side view of the tractor, fig. 5 is a left side view of the tractor, and fig. 6 is a plan view of the tractor.

The tractor 1 includes: frame 11, engine 12, transmission 13, front axle 14, and rear axle 15.

The frame 11 constitutes a framework of the front part of the tractor 1. The frame 11, the transmission 13 and the rear axle 15 together form a chassis of the tractor 1. An engine 12 described below is supported by the frame 11.

The engine 12 converts thermal energy resulting from the combustion of fuel into kinetic energy. That is, the engine 12 generates rotational power by burning fuel. An engine control device (not shown) is connected to the engine 12. When the operator operates the accelerator pedal, the engine control device changes the operating state of the engine 12 in accordance with the operation. The engine 12 is also provided with an exhaust gas purification device (not shown). The exhaust gas purification device oxidizes particulates, carbon monoxide, hydrocarbons, and the like contained in the exhaust gas.

The transmission 13 transmits the rotational power of the engine 12 to a front axle 14 and a rear axle 15. The rotational power of the engine 12 is input to the transmission 13 via a coupling mechanism. The transmission 13 includes a continuously variable transmission device (HMT or I-HMT). When the operator operates the shift lever, the continuously variable transmission device changes the operating state of the transmission 13 in accordance with the operation.

The front axle 14 transmits the rotational power of the engine 12 to the front tires 141. The rotational power of the engine 12 is input to a front axle 14 via a transmission 13. A steering device (not shown) is provided in parallel to the front axle 14. When the operator operates the steering wheel, the steering device changes the steering angle of the front tires 141 in accordance with the operation.

The rear axle 15 transmits the rotational power of the engine 12 to the rear tires 151. The rotational power of the engine 12 is input to a rear axle 15 via a transmission 13. Note that, a PTO output device 152 is provided at the rear axle 15. When the operator operates the PTO switch, the PTO output device 152 transmits the rotational power to the towed work machine according to the operation.

Further, the tractor 1 is provided with a cab 16 that protects the operator from the weather. The cab 16 includes: support columns 161 to 164 arranged at four corners; a roof 165 supported by the pillars 161 to 164 and having a substantially rectangular shape in a plan view; and four window glass pieces 166 to 169 disposed between the adjacent pillars 161 to 164. Inside the cab 16 is a control cabin in which a driver seat 170 and the like are disposed.

The struts 161 to 164 are composed of two front struts 161 and 162 and two rear struts 163 and 164. The front pillars 161, 162 are constituted by a left front pillar 161 and a right front pillar 162, and the rear pillars 163, 164 are constituted by a left rear pillar 163 and a right rear pillar 164. The number of the pillars is not limited.

As shown in fig. 1 to 6, for example, the left front pillar 161 is curved convexly toward the left front, the right front pillar 162 is curved convexly toward the right front, the left rear pillar 163 is curved convexly toward the left rear, and the right rear pillar 164 is curved convexly toward the right rear. Thus, the pillars 161 to 164 can be formed in a shape curved in a convex shape toward the outside of the cab 16. The outward curve is defined as a curve in at least one direction of the outer surface (the surface located on the vehicle outer side) of the support columns 161 to 164, and the inner surface (the surface located on the vehicle inner side) does not have to be curved outward.

The roof 165 is placed on the upper ends of the pillars 161 to 164. As shown in fig. 6, the rear pillars 163 and 164 are hidden by the roof 165 in a plan view.

The window glass 166 to 169 include a front glass 166, a rear glass 167, a left glass 168, and a right glass 169. The window glass 166 to 169 are not particularly limited as long as they are transparent plates that transmit visible light, and may be made of a transparent resin material such as polycarbonate. The left glass 168 and the right glass 169 are openable and closable, have rear ends fixed to the left rear stay 163 and the right rear stay 164 by two hinges 171, respectively, and have knobs 172 provided near the front ends of the left glass 168 and the right glass 169.

The operator's seat 170 is provided at the center of the operator's cab 16 or slightly rearward of the center. A shift lever, a steering wheel, an accelerator pedal, a brake pedal, a clutch pedal, a reverse lever, a speedometer, an instrument panel, a turn signal lamp control lever, a lamp switch, a hazard warning switch, an operation lamp switch, and the like are disposed around the driver's seat 170. The operator can operate the tractor 1 by operating an accelerator pedal or the like while sitting on the driver seat 170.

The tractor 1 is provided with tail lights 18 and 19 on the rear stays 163 and 164, respectively. The rear lights 18 and 19 are constituted by a left rear light 18 provided on the left rear stay 163 and a right rear light 19 provided on the right rear stay 164. As shown in fig. 3, the left tail light 18 and the right tail light 19 have a bilaterally symmetrical shape and layout. In order to avoid redundant description, the following description will be mainly given with the left tail lamp 18, and the detailed description of the right tail lamp 19 will be omitted.

The left tail lamp 18 is provided along the longitudinal direction (vertical direction) of the left rear stay 163. This provides a feeling of unity between the left tail lamp 18 and the left rear stay 163, and the design is high. In more detail, the left tail light 18 is bent along the outer surface of the left rear pillar 163. Thereby, the sense of unity is further enhanced. The left tail light 18 does not have to be bent into the same shape as long as it is along the outer surface of the left rear stay 163. For example, the left rear light 18 may be partially projected.

The left tail light 18 is closely attached to the left rear stay 163. This also enhances the sense of unity. In addition, an embodiment may be possible in which a gap is provided between the left tail light 18 and the left rear stay 163. For example, an embodiment may be adopted in which a gap is provided between the left tail light 18 and the left rear stay 163 with a certain distance.

The left tail lamp 18 is provided so as to extend from the vicinity of one end (the vicinity of the upper end) to the vicinity of the other end (the vicinity of the lower end) in the longitudinal direction of the left rear pillar 163. That is, the left rear stay 163 is substantially covered with the left tail lamp 18 when viewed from the rear. This enhances the sense of integration of the left tail lamp 18 and the left rear stay 163, and improves the design. Further, the left tail lamp 18 is elongated in the vertical direction, and therefore, visibility is also good. Further, since the left tail lamp 18 is extended to the vicinity of the roof 165, the electric wiring to the tail lamp 18 can be shortened by guiding through the roof 165.

The length and position of the left tail light 18 are not limited as long as it is along the outer surface of the left rear stay 163, and it is not necessary to provide it so as to extend from the vicinity of one end to the vicinity of the other end in the longitudinal direction of the left rear stay 163. For example, the left tail light 18 may be provided so as to extend from the vicinity of the center of the left rear stay 163 in the longitudinal direction to the vicinity of the other end. Conversely, the left tail light 18 may be provided so as to extend from the vicinity of one end of the left rear stay 163 in the longitudinal direction to the vicinity of the center. The left tail light 18 may be provided only near the center of the left rear stay 163 in the longitudinal direction.

The left tail lamp 18 has a shape that is blocked by the left rear stay 163 when viewed from the driver seat (when seated) 170. Therefore, the left tail lamp 18 is thinned and designed to have a width smaller than that of the left rear stay 163. In the state of being seated on the driver seat 170, the left tail light 18 is blocked by the left rear stay 163, and thus the light of the left tail light 18 does not enter the field of view of the operator, and therefore driving is not hindered.

Fig. 7 to 12 show enlarged views of the left tail lamp. Fig. 7 to 11 are views viewed from the same direction as fig. 2 to 6, respectively, and fig. 12 is a bottom view. Fig. 13 is a view of fig. 8 with the lens and the lens cover removed. Fig. 14 is a view of fig. 9 with the lens and the lens cover removed. Fig. 15 is a view of fig. 10 with the lens and the lens cover removed. Fig. 16 is a view of fig. 11 with the lens and the lens cover removed. Fig. 17 is a diagram illustrating a positional relationship between the left tail light and the left rear pillar.

The left tail lamp 18 includes: a lamp cover 181, a light source 182, a lens 183, and a lens cover 184.

The shade 181 is a box-shaped member having an opening at a rear side surface, and is molded from, for example, black resin. The mounting surface of the shade 181 is shaped to follow the left rear leg 163. In the present embodiment, the outer surface of the rear pillar 163 is curved in a convex shape outward, and the shade 181 is curved so as to extend from the vicinity of the upper end to the vicinity of the lower end of the outer surface of the left rear pillar 163 in the longitudinal direction. Therefore, the shade 181 has a sense of unity with the left rear pillar 163, and is highly designable.

Further, the shade 181 is screwed to the left rear leg 163 with four holes 185. It should be noted that the mounting may be performed by other means such as a snap. In the interior of the shade 181, convex portions 186 that protrude rearward are formed near the upper end and near the lower end. The opposite side of the convex portion 186 is a concave portion 187, and a part of the two hinges 171 of the left glass 168 is accommodated therein (see fig. 17). Between the protrusions 186 inside the lamp housing 181 are recesses 188 for accommodating the light source 182. The recess 188 is provided with a hole (not shown) for screwing the substrate of the light source 182. Further, a reflection surface is formed on the concave portion 188 by aluminum evaporation coating or the like. In addition, when a partition member is appropriately provided inside the lamp housing 181, light leakage from the light source 182 can be prevented. For example, a partition member can be provided that separates the recess 188 and the protrusion 186.

Further, a through hole 189 for passing electric wiring to the light source 182 is formed in the recess 188 of the shade 181. The through hole 189 is disposed directly above the light source 182 and penetrates in the front-rear direction. The electric wiring passes through the roof 165 and the left rear pillar 163, passes through the hole provided in the left rear pillar 163 at a position overlapping the through hole 189 and the through hole 189, and is connected to the light source 182.

The light source 182 is configured such that a plurality of red LEDs and a plurality of orange LEDs are mounted on one substrate. In the present embodiment, three LEDs are arranged in a row in the left-right direction, red LEDs are arranged in 6 rows in the up-down direction to form a red LED group 182a, and orange LEDs are arranged in 11 rows in the up-down direction to form an orange LED group 182 b. The orange LED group 182b is disposed above the red LED group 182 a. The red LED group 182a is used as a rear lamp and a stop lamp, and the orange LED group 182b is used as a turn lamp.

The light source 182 is housed in the recess 188 of the lamp housing 181. The LED portion (light emitting portion) protrudes from the left and right side surfaces of the shade 181 when viewed from the left and right side surfaces. This enables a large amount of light to be extracted to the left and right sides, and visibility when viewed from the left and right sides is improved.

In this way, the light source 182 can be made thin by using LEDs, and the left tail lamp 18 can be easily shielded from the driver's seat 170 by the left rear stay 163. Light sources other than LEDs may be used as the light source 182.

The tail lamp of the present embodiment is a rear combination lamp in which three types of lamps (rear position lamp, stop lamp, turn signal lamp) are embedded, but may be an embodiment in which any one, any two, or any four or more types of lamps are embedded.

The lens 183 is a light scattering member covering the opening of the lamp cover 181. The lens 183 may be a light-transmitting member, and for example, a transparent resin may be used. The lens 183 has a shape that covers the entire rear side of the shade 181 and extends to a part of the upper, lower, left, and right side surfaces. In particular, a portion overlapping with the light source 182 on the right side extends so as to detour to the right side of the light source 182. The lens 183 is divided into a lattice shape on the entire rear side and slit shapes on the upper, lower, left and right side surfaces. By optimizing the shape and size of the division, the substrate of the light source 182 and the like are less visible from the outside, and the design is improved. The lens 183 is not limited to this shape, and may be disposed at least on the rear side of the light source 182. For example, the lens may be provided only in a portion overlapping with the light source 182.

In addition to the above-described embodiments, a light source such as white may be used for the light source 182, and a colored lens of red or orange may be used for the lens 183.

The lens cover 184 is a light-transmitting member that covers the outer surface of the lens 183. For the light distribution mirror cover 184, for example, a transparent resin can be used. The lens cover 184 covers the entire rear side of the lens 183, and extends over a part of the upper, lower, left, and right side surfaces of the shade 181 in a detour manner than the lens 183. The upper, lower, left, and right side surfaces of the light distribution mirror cover 184 are formed to be flush with the upper, lower, left, and right side surfaces of the shade 181, respectively, and have a sense of unity with the shade 181, and high design properties. Grooves for fitting with the light distribution mirror covers 184 are formed in the upper, lower, left, and right side surfaces of the shade 181 so as to be flattened.

In addition, various structures may be added to the space other than the light source 182 of the left tail light 18. For example, a work light (work light), a work machine lifting switch, a backlight unit, and the like may be provided in the space.

The task light may be disposed, for example, in the recess 188 of the lamp housing 181 and above the light source 182. Generally, a work implement raising/lowering switch is provided at the rear portion of the rear fender, and includes a push button for raising and a push button for lowering a connected work implement. The work elevation switch may be provided on, for example, the projection 186 below the light source 182 of the shade 181. In this case, the lens 183 and the lens cover 184 may be formed to have a length up to the lower end of the light source 182 so as to avoid the work machine up-down switch. The backlight unit may be provided at a position not overlapping with the light source 182 on the rear side surface of the lens 183 or the lens cover 184, for example. The backlight portion can be formed by performing reflection processing on the lens 183 or the lens cover 184.

In this way, by combining the components such as the working lamp, the working machine up-down switch, and the backlight unit, which are provided separately from the tail lamp, with the left tail lamp 18, the number of members separately attached to the rear portion of the tractor 1 is reduced, and the design is improved.

In the above-described embodiment, the cab is provided, but the working vehicle may be a working vehicle without a cab. For example, the work vehicle may be a work vehicle provided with a roof or a roll bar. In this case, the tail lamp is also provided at the rear pillar located behind the driver's seat. For example, a tail lamp is provided in a rear pillar of a cab, a rear pillar of a roll bar, or the like. As described above, the work vehicle may be any work vehicle provided with at least a rear pillar located behind a driver's seat. The shape and function of the rear pillar are not particularly limited. For example, a U-shaped rear pillar may be used, and in this case, a rectangular tail lamp may be provided along a horizontal portion of the rear pillar. The rear pillar may not be the rearmost pillar as long as it is located behind the driver's seat.

The tail light may be a single tail light instead of a pair of left and right. Further, the tail light may be asymmetrical in the left and right.

Industrial applicability

The present invention is applicable to working vehicles such as tractors for farming and wheel loaders for civil engineering work.

Description of the reference numerals

Tractor 1 (working vehicle)

16 driver's cabin

18 left taillight

19 Right taillight

163 left rear strut

164 right rear pillar

170 driver's seat

181 lampshade

182 light source

183 lens

184 to form a light distribution lens cover.