JPH0649230U - Rear bumper for large trucks - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] To prevent the rear bumper installed at a low position from touching the ground. A rear bumper for a large freight vehicle or the like, characterized in that the rear bumper 16 is attached by a telescopic cylinder 22 so as to be able to move up and down, and an alarm means is activated when the rear bumper 16 is in a raised position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rear bumper for a large truck or the like.

[0002]

[Prior art]

 The vehicle is equipped with a rear bumper to prevent a rear-end collision, but for large vehicles, especially large trucks, the ground clearance is high and the rear bumper is also high. For this reason, it is said that when a motorcycle or a light vehicle hits the rear end of the vehicle, it will cause a so-called crushing collision under the bumper, resulting in great damage to the body.

[0003]

[Problems to be solved by the device]

 For this reason, the revision of the law mandated that the rear bumper be 55 cm or less above the ground. However, if it is lowered to this level, the rear bumper may be damaged when traveling on a slope or when it hits an obstacle. The present invention solves such a problem and makes it possible to raise the rear bumper only when the rear bumper is likely to hit.

[0004]

[Means for Solving the Problems]

 Under the above-mentioned problems, the present invention is characterized in that the rear bumper is mounted so that it can be moved up and down by a telescopic cylinder, and that the alarm means is activated when the rear bumper is in the raised position. This is the one that provided the rear bumper.

[0005]

[Action]

 By taking the above measures, the rear bumper can be raised according to the road conditions. On the other hand, when the rear bumper rises, the alarm means is activated, so the rear bumper is never left raised.

[0006]

Embodiment FIG. 1 is a side view of a large-sized freight vehicle having a luggage box to which a rear bumper according to the present invention is attached, FIG. 2 is a rear view, and FIGS. 3 and 4 are partial cross-sectional side views of a main part. However, since two frames 12 extending in the front-rear direction are attached to the bottom of the vehicle carrier 10, a bracket 14 is provided so as to project from the rear of the frame 12 and two guide rods are provided from the rear bumper 16. 18 is extended and the guide rod 18 is slidably supported by the bracket 14 (FIG. 3). In order to avoid the interference between the guide rod 18 and the luggage carrier 10, the guide rod 18 is provided behind the rear end of the luggage carrier 10.

Next, the stay 20 is provided between the brackets 14 by welding or the like, the telescopic cylinder 22 made of hydraulic pressure or pneumatic pressure is attached to the stay 20, and the rod 22 a of the telescopic cylinder 22 is attached to the rear bumper 16. Connect (Fig. 4). In this example, one expansion cylinder 22 is provided in the center, but two expansion cylinders 22 may be provided on the left and right. As described above, when the telescopic cylinder 22 is telescopically moved, the rear bumper 16 moves up and down. At this time, when the rear bumper 16 is lowered, the rear bumper 16 is set to be 55 cm or less from the ground. In addition, although not shown, the rear bumper 16 may be configured to be rotatable around a horizontal pin, and the telescopic cylinder may be rotated to move up and down.

The extension / contraction of the extension / contraction cylinder 22 can be remotely controlled by operating a switch or the like from a driver's seat or the like using a known solenoid valve or the like. By the way, in this case, when the expansion cylinder 22 is shortened by exciting the solenoid and the rear bumper 16 is raised, some alarm means is activated in conjunction with this. A buzzer, a lamp, etc. can be considered as the alarm means, but this can be done by inserting these into the excitation circuit of the solenoid.

As described above, when the driver determines that the rear bumper 16 is likely to be used, the switch is operated to raise the rear bumper 16. Then, when this is done, the switch is operated again to lower the rear bumper 16. At this time, while the rear bumper 16 is raised, the alarm means is activated to call the driver's attention, so that the rear bumper 16 is not left as it is raised.

[0010]

[Effect of device]

 As described above, according to the present invention, when the rear bumper whose ground clearance is set low by the revision of the law is likely to catch on the ground or obstacles, the rear bumper is lifted to avoid collision and destruction due to it. Then, if this is cleared, the rear bumper is lowered to its original position. In this case, when the rear bumper rises, the alarm means is activated, so there is no need to forget to lower it.

[Brief description of drawings]

FIG. 1 is a side view of a large truck equipped with a rear bumper according to the present invention.

FIG. 2 is a rear view of a large-sized freight vehicle equipped with a rear bumper according to the present invention.

FIG. 3 is a partial cross-sectional side view of an essential part showing a state where a rear bumper is attached.

FIG. 4 is a partial cross-sectional side view of an essential part showing a state where the rear bumper is attached.

[Explanation of symbols]

 16 Rear bumper 22 Telescopic cylinder

Claims (1)

[Scope of utility model registration request] 1. A rear bumper for a large freight vehicle or the like, characterized in that the rear bumper is attached by a telescopic cylinder so as to be able to move up and down, and an alarm means is activated when the rear bumper is in a raised position.