JP2011088510A - Structure for fixing rear lamp of working vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a structure facilitating removal and installation, and being inexpensive, in the structure for fixing a rear combination lamp. <P>SOLUTION: This fixing structure includes an installation bracket 31, bolts 35, and a stopper 38. The installation bracket 31, a fixation portion 31a on one end of which is fixed on a rear wall surface 32a of a battery box 32 in a counterweight 23, has a lamp installation surface 31c where the rear combination lamp 30 is fixed. The bolts 35 fix the fixation portion 31a of the installation bracket 31 onto the rear wall surface 32a. The stopper 38 is provided on a supporting portion 31b on the other end of the installation bracket 31, coming into contact with the upper surface of the counterweight 23, so as to support the supporting portion 31b of the installation bracket 31 on the counterweight 23. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a fixing structure for a rear lamp, and more particularly to a fixing structure for fixing the rear lamp to a vehicle body of a work vehicle.

  A wheel loader as a work vehicle has a rear combination lamp including a tail lamp, a brake lamp, a back lamp, and a direction indicator attached to the rear part of the vehicle body.

  For example, the rear lamp of the wheel loader disclosed in Patent Document 1 is fixed to the side surface of the battery box by a bolt when traveling on a public road, and is fixed to the upper surface of the battery box by a bolt outside the public road.

JP-A-7-323781

  The rear lighting device in the conventional work vehicle including the rear lighting device disclosed in Patent Document 1 is fixed to a counterweight at the rear of the vehicle body or a mounting flange provided on the exterior. At this time, particularly in a work vehicle, the vibration transmitted to the vehicle body or the like is large. For this reason, the mounting flange is firmly fixed by a plurality of bolts. The mounting flange may be fixed to the counterweight or the exterior by welding.

  However, in the conventional fixing structure, the rear lighting device is firmly fixed to the counterweight and the exterior via the mounting flange, so that the efficiency at the time of detaching work is poor. In addition, when fixing the mounting bracket of the rear lamp over a plurality of members or when fixing to a different surface of one member, a plurality of mounting holes formed in the mounting bracket are accurately formed. There is a problem that the manufacturing cost becomes high.

  An object of the present invention is to realize a structure that is easily detachable and inexpensive in a fixing structure of a rear lamp.

  The structure for fixing the rear lamp of the work vehicle according to the first invention is a structure for fixing the rear lamp to the vehicle body of the work vehicle, and includes a mounting bracket, a fixture, and a stopper. One end of the mounting bracket is fixed to one fixed member of the vehicle body, and has a lamp mounting surface to which the rear lighting device is fixed. The fixing tool fixes one end of the mounting bracket to the fixed member. The stopper is provided on the other end side of the mounting bracket, and abuts against the fixed member to support the other end side of the mounting bracket with respect to the fixed member.

  Here, the rear lamp is mounted on the lamp mounting surface of the mounting bracket. Then, one end side of the mounting bracket is fixed to a fixed member of the vehicle body such as a counterweight by a fixing tool. The other end side of the mounting bracket is supported by the member to be fixed by contacting the member to be fixed through a stopper.

  In this fixing structure, the rear lighting device can be fixed to the vehicle body only by fixing one end of the mounting bracket to the fixed member. Further, the other end side of the mounting bracket contacts and is supported by the fixed member via the stopper, so that the rear lamp does not vibrate greatly. Furthermore, the mounting bracket is fixed to the fixed member only at one end side, and it is not necessary to strictly manage the accuracy of the positional relationship between the plurality of holes for fixing the mounting bracket.

  The structure for fixing the rear lamp of the work vehicle according to the second aspect of the invention is the fixing structure of the first aspect, wherein the vehicle body includes a frame and a counterweight fixed to the rear end of the frame, Counter weight.

  Since the counter weight is fixed to the rear end portion of the frame, the rear lamp is improved in visibility by fixing the rear lamp to the counter weight via a mounting bracket.

  The fixing structure of the rear lighting device for the work vehicle according to the third invention is the fixing structure of the second invention, wherein the counterweight has a pair of extension portions formed to extend forward at both left and right ends, The mounting bracket is fixed to a pair of extensions of the counterweight.

  Depending on the vehicle to which the counter weight is attached, an extension that extends forward may be formed at both the left and right ends in order to increase the weight. The extension portion is provided to wrap around from the rear end portion of the vehicle to the left and right side portions.

  Therefore, in the third aspect of the invention, the mounting bracket and the rear lighting device are fixed using the portions provided around the left and right sides of the counterweight.

  According to a fourth aspect of the present invention, there is provided a fixing structure for a rear lamp of the work vehicle according to the third aspect of the present invention. Are formed. The mounting bracket is formed in an L shape, one end extending in the vertical direction is fixed to the rear wall surface of the recess, and the other end extending in the horizontal direction is in contact with the upper surface of the counterweight via a stopper.

  Here, the left and right extensions of the counterweight are formed with recesses for storing devices such as batteries. Therefore, one end of the mounting bracket is fixed to the rear wall surface of the recess, and the other end of the mounting bracket is supported on the upper surface of the counterweight. For this reason, the mounting bracket and the rear lighting device can be easily fixed.

  The fixing structure for the rear lighting device of the work vehicle of the fifth invention is the fixing structure of the first invention, wherein the stopper is formed of rubber. Here, since the mounting bracket is in contact with and supported by the fixed member via a stopper formed of rubber, it is possible to suppress the vibration of the rear lamp during traveling.

  In the present invention as described above, the rear lamp can be easily attached to and detached from the vehicle body, and the fixing structure can be made inexpensive.

1 is an external perspective view of a wheel loader that employs a rear combination lamp fixing structure according to an embodiment of the present invention. The external appearance perspective view which shows the fixing structure of the said rear combination lamp. The figure which looked at the fixing structure of the said rear combination lamp from back. The external appearance perspective view of the state where the cover was opened in the fixed structure. The external appearance perspective view of the state where the cover was removed in the fixed structure. The figure which shows other embodiment of a mounting bracket.

  Here, a wheel loader will be described as an example of the work vehicle. FIG. 1 shows a wheel loader 10 that employs a rear combination lamp fixing structure as a rear lighting device according to an embodiment of the present invention. In addition, regarding “front”, “back”, “left”, and “right” used in the following description, the forward side of the wheel loader 10 is “front”, the backward side is “rear”, and the forward side is facing forward. The right side is “right” and the opposite side is “left”.

[Wheel loader configuration]
The wheel loader 10 is mounted on a vehicle body 11, a lift arm 12 attached to the front portion of the vehicle body 11, a bucket 13 attached to the tip of the lift arm 12, front and rear tires 14, and an upper portion of the vehicle body 11. And a cab 20.

  The vehicle body 11 includes an engine room that houses an engine (not shown), and a drive unit that drives the lift arm 12 and the bucket 13. The lift arm 12 is an arm member for lifting the bucket 13 attached to the tip, and is driven by a lift cylinder provided therewith. The bucket 13 is attached to the tip of the lift arm 12 and is dumped and tilted by a bucket cylinder.

  The vehicle body 11 has a frame 22 and a counterweight 23 fixed to the rear end portion of the frame 22. The counter weight 23 has a main weight 24 and an additional weight 25. The main weight 24 has a rear end portion 24a and left and right extension portions 24b that are integrally formed. The left and right extension portions 24 b are formed by extending the left and right end portions of the rear end portion 24 a forward and are disposed outside the left and right rear portions of the frame 22. The additional weight 25 is a weight added and fixed further rearward of the rear end portion 24a of the main weight 24. The main weight 24 and the additional weight 25 are fixed to the rear end portion of the frame 22 by a plurality of bolts that penetrate both the weights 24 and 25 from the rear to the front.

[Rear combination lamp fixing structure]
As shown in FIG. 1, rear combination lamps 30 are mounted on the left and right sides of the rear portion of the vehicle body 11. Since the left and right rear combination lamps 30 are configured symmetrically with respect to the longitudinal center line of the vehicle body 11, only the fixing structure of one rear combination lamp will be described here.

  As shown in an enlarged view in FIG. 2, the rear combination lamp 30 is disposed on the upper surface of the counterweight 23 via a mounting bracket 31. More specifically, the mounting bracket 31 is fixed to the extension portion 24 b of the main weight 24, and the rear combination lamp 30 is mounted on the mounting bracket 31. As shown in FIG. 2 and FIG. 3 as viewed from the rear, the rear combination lamp 30 includes a brake lamp 30a also serving as a tail lamp, a back lamp 30b provided below the brake lamp 30a, and a lamp lamp 30a, 30b. And a direction indicator 30c provided outside. And these lamps 30a, 30b, 30c are accommodated in the case 30d.

  Here, as shown in FIG. 4, a battery box 32 is formed on the extension 24 b of the main weight 24 as a recess formed by closing the rear. The battery box 32 is a recess for storing equipment such as a battery and piping. The battery box 32 is provided with a cover 34 that can be freely opened and closed. FIG. 4 shows a state in which the cover 34 is opened. FIG. 5 shows a state where the cover 34 is removed.

  As is apparent from FIGS. 2 and 5, the mounting bracket 31 is formed by bending one plate into an L shape. The mounting bracket 31 has a fixed portion 31a extending in the up-down direction and a support portion 31b extending in the horizontal direction.

  Two through holes are formed in the fixing portion 31a, and the fixing portion 31a is fixed to the rear wall surface 32a of the battery box 32 by a bolt 35 that passes through the through hole.

  The upper surface of the support portion 31b is a lamp mounting surface 31c to which the rear combination lamp 30 is fixed. A plurality of through holes are formed in the support portion 31b. As is apparent from FIGS. 3 and 5, a bolt 36 and a nut (not shown) penetrating the through holes from below are provided on the lamp mounting surface 31c. A combination lamp 30 is fixed. Further, two stoppers 38 made of hard rubber are fixed to the lower surface of the support portion 31b. The stopper 38 is in contact with the upper surface of the extension 24b of the main weight 24.

  A wiring 40 is connected to each of the lamps 30a, 30b, and 30c constituting the rear combination lamp 30. The wiring 40 is disposed in the battery box 32, and is connected to each lamp 30a, 30b through an opening formed in the cover 34 and an opening (not shown) formed in the lower surface of the case 30d of the rear combination lamp 30. , 30c.

[Installation of rear combination lamp]
When fixing the rear combination lamp 30 to the counterweight 23, first, the rear combination lamp 30 is fixed to the lamp mounting surface 31 c of the mounting bracket 31 with the bolts 36. Next, the unit of the rear combination lamp 30 and the mounting bracket 31 is fixed to the counterweight 23. Specifically, the fixing portion 31 a of the mounting bracket 31 is inserted into the battery box 32 of the main weight 24, and the support portion 31 b is placed on the upper surface of the extension portion 24 b of the main weight 24. And the fixing | fixed part 31a is fixed to the rear wall surface 32a of the battery box 32 with the volt | bolt 35 in the state which made the stopper 38 provided in the lower surface of the support part 31b contact | abut on the upper surface of the extension part 24b.

[Characteristic]
(1) With this fixing structure, the rear combination lamp 30 can be fixed to the vehicle body 11 only by fixing the fixing portion 31 a on one end side of the mounting bracket 31 to one surface of the counterweight 23. For this reason, the removal | desorption operation | work of the rear combination lamp 30 becomes easy. Further, the support portion 31 b on the other end side of the mounting bracket 31 is in contact with and supported by the upper surface of the counterweight 23 via the stopper 38. For this reason, the mounting bracket 31 and the rear combination lamp 30 are firmly supported by the counterweight 23, and vibration of the rear combination lamp 30 can be suppressed.

  (2) The fixed portion 31 a and the support portion 31 b of the mounting bracket 31 are fixed and supported by one counterweight 23. For this reason, it is not necessary to strictly manage the manufacturing error of the mounting bracket 31 as compared with the case where the fixing portion 31a and the supporting portion 31b are fixed and supported by different members. Therefore, the manufacturing cost of the mounting bracket 31 can be suppressed. Further, when the mounting bracket 31 is fixed to the counterweight 23, it is not necessary to consider an assembly error of the counterweight 23 and a manufacturing error.

  (3) The fixing portion 31 a of the mounting bracket 31 is fixed using the rear wall surface 32 a of the battery box 32 of the main weight 23. That is, it is not necessary to form a special surface for fixing the fixing portion 31a of the mounting bracket 31. Therefore, the manufacturing cost can be suppressed.

  (4) The support portion 31b of the mounting bracket 31 is supported on the upper surface of the extension portion 24b of the main weight 24 via a stopper 38 formed of hard rubber. For this reason, it can absorb that the vibration of a vehicle body is transmitted to the rear combination lamp 30, and the vibration of the rear combination lamp 30 can be suppressed more.

[Other Embodiments]
The present invention is not limited to the above-described embodiments, and various changes or modifications can be made without departing from the scope of the present invention.

  (1) Another embodiment of the mounting bracket is shown in FIG. The mounting bracket 41 shown in FIG. 6 has a fixed portion 41a and a support portion 41b, as in the above embodiment. The fixing portion 41a is formed with two through holes 41e that are long in the vertical direction. In the same manner as in the above-described embodiment, the mounting bracket 41 is fixed to the counterweight 23 by a bolt that penetrates the through hole 41e.

  Here, since the through-hole 41e is formed long in the vertical direction, when the mounting bracket 41 is fixed to the counterweight 23, it can be fixed while adjusting the vertical position of the mounting bracket 41. Therefore, even if there is a manufacturing error in the mounting bracket 41 or the stopper 38, the stopper 38 can be brought into close contact with the upper surface of the counterweight 23 with high accuracy. For this reason, manufacture becomes easier.

  (2) Although the mounting bracket is fixed to the counterweight in the embodiment, the present invention is not limited to this. For example, you may make it fix the attachment bracket formed similarly to the said embodiment to the flame | frame of a vehicle body.

  (3) Although the rear combination lamp has been described as an example of the rear lighting device in the embodiment, the configuration of the rear lighting device is not limited to the embodiment.

  (4) Although the wheel loader has been described as an example of the work vehicle in the embodiment, the present invention can be similarly applied to other work vehicles.

11 Body 22 Frame 23 Counterweight 24b Left and right extension 30 Rear combination lamp 31 Mounting bracket 31a Fixing portion 31b Supporting portion 31c Lamp mounting surface 32 Battery box 36 Bolt 38 Stopper

Claims (5)

A fixing structure for fixing the rear lighting device to the vehicle body of the work vehicle,
One end side is fixed to a fixed member of the vehicle body, and a mounting bracket having a lamp mounting surface to which the rear lighting device is fixed,
A fixture for fixing one end of the mounting bracket to the fixed member;
A stopper provided on the other end of the mounting bracket, abutting against the fixed member and supporting the other end of the mounting bracket with respect to the fixed member;
A structure for fixing the rear lamp of a work vehicle equipped with The vehicle body includes a frame, and a counterweight fixed to a rear end portion of the frame,
The fixed member is the counterweight;
The structure for fixing the rear lamp of the work vehicle according to claim 1. The counterweight has a pair of extensions formed to extend forward at both left and right ends,
The mounting bracket is fixed to a pair of extensions of the counterweight;
The structure for fixing the rear lighting device of the work vehicle according to claim 2. Each of the pair of extension portions of the counterweight is formed so that at least the rear is closed, and a recess for storing the device is formed,
The mounting bracket is formed in an L shape, and one end side extending in the vertical direction is fixed to the rear wall surface of the recess, and the other end side extending in the horizontal direction is in contact with the upper surface of the counterweight via the stopper.
The structure for fixing the rear lighting device of the work vehicle according to claim 3.   The structure for fixing the rear lighting device of the work vehicle according to claim 1, wherein the stopper is made of rubber.

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