JP2558823Y2 - Lighting equipment for vehicles - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a lighting device for a vehicle, such as a construction vehicle, which is provided on both right and left sides of a vehicle body. The present invention relates to a vehicular lighting device that avoids the above.

[0002]

2. Description of the Related Art Conventionally, in a construction vehicle such as a wheel loader, it is necessary to illuminate the periphery of the vehicle. Therefore, there is a great risk that the lighting device may contact the left and right obstacles, and there is a problem that the lighting device is damaged by the obstacle when the lighting device contacts the obstacle. In order to avoid such damage of the lighting device due to obstacles, the lighting device is held through a spring body, and when the vehicle comes into contact with the obstacle when the vehicle is retracted, the lighting device body is automatically opposed to the spring body. Lighting devices have been developed that can fall forward.

[0003]

However, such a lighting device cannot cope with contact with an obstacle when the vehicle moves forward. Also, if the spring body is too weak, the lighting device becomes unstable, and if the spring body has too strong a restoring force, the impact on the lighting device is large, which may cause a failure of the device itself such as a light bulb of the lighting device. Was. Therefore, a main problem of the present invention is to provide a vehicle lighting device capable of smoothly avoiding an obstacle from contacting the lighting device from either the front or the rear of the vehicle. .

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides: (a) a vehicular lighting device which is provided so as to protrude outward from a side surface of a vehicle body and can tilt forward and backward in a traveling direction. (B) A bracket fixed to the vehicle side and protruding outward is provided. (C) A lighting device is built in, and a pair of pins which are separated from each other are attached to a base end portion, and the bracket is attached to the bracket. Providing a casing rotatably mounted in the vehicle longitudinal direction via the pin; (d) providing a spring body for urging the casing to be always held at a neutral position in the lateral direction of the vehicle body; (E) providing a pair of guide slots extending symmetrically in an arc on the bracket; (f) engaging the guide pins of the casing with the guide slots to guide the casing to the spring body. That can rotate forward or backward of the vehicle against the tension of That it has taken the technical means that.

[0005]

According to the present invention, the vehicle lighting device is held at the neutral position protruding laterally from the vehicle body by the spring body. Therefore, when an obstacle comes into contact with the casing of the lighting device from either the front or the rear of the vehicle, the casing resists the biasing force of the spring body and falls backward or forward of the vehicle until it leaves the obstacle. State.
In this case, the casing is formed in an arc shape while being centered on one pin located at the base end of one guide long hole and guided by the other guide long hole with which the other pin is engaged. The casing slides to rotate smoothly. When the obstacle leaves the obstacle, the other pin is returned to the original position by being slid in an arc while being guided by the same guide slot again by the restoring force of the spring body, and the casing is held at the original neutral position. .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a vehicle lighting device according to the present invention will be described below with reference to the drawings. First, FIG.
FIG. 1 is a front view showing a state in which the lighting device of the present invention is mounted on a construction vehicle. Lighting devices 2 are provided on both sides of the construction vehicle body 1 so as to project from the vehicle body 1.

As shown in FIGS. 1 and 2, this lighting device 2 has a cross section U which is attached to a side surface of a vehicle body 1 via a bolt 4 so as to form a pair of plate members 5a, 5b opposed in the vertical direction. A bracket 5 bent into a letter shape and a lighting fixture 6 are built in, and a pair of pins 7a and 7b which are separated from each other are attached to a base end portion. The bracket 5 is attached to the bracket 5 via the pins 7a and 7b. A casing 8 rotatably mounted in a direction, and a spring body 9 which is installed between the bracket 5 and the casing 8 and constantly urges the casing 8 so as to protrude in the lateral direction of the vehicle body 1 at all times. It is mainly composed.

A pair of guide slots 10a and 10b are respectively symmetrically formed in the pair of plates 5a and 5b of the bracket 5 so as to penetrate the plates 5a and 5b in the vertical direction (that is, each of the slots 5a and 5b is symmetrical with each other). It is formed so as to draw an arc (symmetrically with respect to the center line L in the protruding direction of the plate members 5a, 5b). That is, the arc formed by one of the guide slots 10a corresponds to a locus that draws a circle with the base end portion of the other guide slot 10b as a fulcrum, and the arc formed by the other guide slot 10b also This corresponds to a trajectory that draws a circle with the base end portion of the above one guide slot 10a as a fulcrum.

A base end of a casing 8 is fitted and fixed to the bracket 5 via pins 7a and 7b as described later. The pins 7a and 7b of the casing 8 are engaged with the pair of guide slots 10a and 10b, and slide along the guide slots 10a and 10b while being guided by the guide slots 10a and 10b, respectively. These pins 7 a and 7 b are mounted on the casing 7 so as to penetrate in the thickness direction of the casing 8 near both sides in the width direction of the base end of the casing 8. In the drawing, reference numeral 11 denotes a washer, and 12 denotes a cotter pin, which is used to removably fix the pins 7a and 7b to the casing 8.

The spring body 9 is formed of a coil spring in this embodiment, and its tip is locked to the casing 8 via a hook bracket 13 and its base end is the upper plate 5a of the bracket 5 as shown in FIG. Pin 1 hanging from the lower surface of
It is locked to the bracket 5 through the bracket 4. A total of two spring bodies 9 are thus provided between the bracket 5 and the casing 8, one on each of the right and left sides with respect to the center line L in the projecting direction of the plate body 5 a. It is always urged to project to a neutral position in the lateral direction of the vehicle body 1.

In the illustrated example, the hook bracket 13 has a pin for receiving a spring at the front end and a screw shaft at the rear end. On the other hand, a holding block 15 having a hole is fixed to the casing 8, and the screw shaft is inserted into the hole and screwed with a nut 16. Therefore,
By adjusting the screwing position of the nut 16, the position of the pin that locks the end of the spring can be displaced to adjust the spring force.

Next, the operation of the vehicular lighting device having the above configuration will be described. First, when an obstacle comes into contact with the casing 8 when the vehicle moves backward, the casing 8 resists the tension of the spring body 9 due to the pressure.
One of the guide slots 10a is pivoted about one of the pins 7a located at the base end of the guide slot 10a and falls forward of the vehicle. At this time, the other pin 7b is engaged with the other guide slot 10a. The casing 8 slides in an arc shape while being guided by 10b.
Is smoothly rotated to the front of the vehicle.

In this case, the maximum rotation angle of the casing 8 is determined by the arc length of the guide slot 10b.
It may be about 5 degrees. When the obstacle leaves the obstacle, the pin 7b is reversed by the restoring force of the spring body 9 while being guided by the engaging guide hole 10b, so that the casing 8 is located at the base end of the guide slot 10a. It turns in the opposite direction about the pin 7a, and automatically returns to the original state in which it protrudes right beside the vehicle.

Next, when an obstacle comes into contact with the casing 8 when the vehicle is moving forward, the pressure of the casing 8 causes the casing 8 to resist the tension of the spring body 9 while maintaining the proximal end of one of the guide slots 10b. At the same time, the other pin 7a slides in an arc shape while being guided by the other engaging guide hole 10a. Then, the casing 8 is smoothly rotated to the rear of the vehicle. In this case, the maximum rotation angle of the casing 8 is also determined by the arc length of the guide elongated hole 10a, but may be generally about 45 degrees. When the obstacle leaves the obstacle, the pin 7a is returned by the restoring force of the spring body 9 while being guided by the engaging guide hole 10a, so that the casing 8 is located at the base end of the guide hole 10b. Pin 7
It turns in the opposite direction about b and automatically returns to the original state where it protrudes right beside the vehicle.

As described above, it can be said that each of the pins 7a and 7b has a role as a guide pin and a role as a hinge when the casing 8 rotates. In the above embodiment, the example in which the pair of the spring bodies 9 is provided has been described. However, the number of the spring bodies 9 is not limited to this, and may be one or three or more. Further, the spring body is not limited to a coil spring, and a leaf spring or another spring material can be used. In addition, the shape of the bracket is not particularly limited. In short, any shape may be used as long as it forms a guiding long hole, and a bracket formed with one guiding long hole may be used in combination.

[0016]

As described above, the vehicle lighting device of the present invention can avoid the obstacle even if the obstacle comes into contact with the lighting device from either the front or the rear of the vehicle. Can be prevented, and the casing is smoothly rotated. Therefore, the impact on the vehicle lighting device itself is small, and the possibility that the turning operation of the casing causes the failure of the vehicle lighting device itself is small. . Furthermore, since it is structurally simple, there are various practical effects such as a low component cost and a low manufacturing cost.

[Brief description of the drawings]

FIG. 1 is a plan view of a vehicle lighting device according to the present invention.

FIG. 2 is a sectional view of the vehicle lighting device shown in FIG.

FIG. 3 is a sectional view showing a part of the vehicle lighting device shown in FIG. 1;

FIG. 4 is a front view of a vehicle equipped with the vehicle lighting device according to the invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle main body 2 Lighting device 5a, 5b A pair of upper and lower plate bodies 6 Lighting fixtures 7a, 7b Pin 8 Casing 9 Spring body 10a, 10b Guide long hole 13 Hook bracket 14 pin

Claims (4)

(57) [Scope of request for utility model registration] 1. A lighting device protruding outward from a side surface of a vehicle body, comprising: a bracket fixed to a vehicle side and projecting outward; and a pair of lighting devices built-in and spaced apart from each other at a base end portion. And a casing rotatably attached to the bracket via the pins in the front-rear direction of the vehicle, and a bridge mounted between the bracket and the casing. A spring body for urging the holding member at a neutral position in the lateral direction; and a pair of guide slots extending symmetrically in an arc on the bracket, and the casing pins are respectively engaged with the guide slots. The lighting device for a vehicle, wherein the casing is rotatable toward the front or rear of the vehicle against the tension of the spring body. 2. The vehicular lighting device according to claim 1, wherein the bracket has a pair of upper and lower plates, and the plate has a long guide hole formed therein. 3. The spring body comprises a coil spring,
The vehicle lighting device according to claim 1, wherein a pair of the lighting devices is provided between the bracket and the casing. 4. A cross section U such that a bracket is attached to a side surface of a vehicle body and forms a pair of plate members opposed in a vertical direction.
The lighting device for a vehicle according to claim 2, wherein the lighting device is bent in a letter shape.