JP2007050875A - Underrun protector for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an underrun protector preventing catching of an object below a vehicle body by making a UP main body closely contact with a road surface as much as possible. <P>SOLUTION: The underrun protector capable of responding to any road surface conditions is mounted to the vehicle body, so as to escape upwardly when the lower face of the UP main body interferes with the road surface and immediately return to the original position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention prevents a car, a motorcycle, a bicycle, a pedestrian, a small animal, a fallen object, an abandoned object, and the like from being caught under the floor when the front, side, and rear of the vehicle collide For the underland protector.

  Conventionally, the UP is installed at a considerably high position from the road surface so as to avoid inadvertent contact with the road surface, and the object cannot be prevented from being caught under the floor. Then, UP which can be installed in a lower position than before using the suspension function has been proposed (see, for example, Patent Document 1). Moreover, the example which raises / lowers UP from a driver's seat using an electric function is proposed (for example, refer patent document 2). In addition, an example in which UP is moved up and down using a sensor function has been proposed (see, for example, Patent Document 3).

Japanese Patent Laid-Open No. 6-211092 JP 2000-108818 A JP 2005-132258 A

  However, in Patent Document 1, the UP main body connected to the vehicle frame by a link mechanism is suspended to a grazing position on the ground via a damper, and the UP main body escapes upward when it interferes with the road surface. However, the number of parts is heavy, heavy, impact is large when interfering with the road surface, and the width of the bottom surface that interferes with the road surface is narrow. There is a risk of being

  Other than the above, the lower part is almost narrow, and there are also examples with protrusions such as small auxiliary wheels and rollers. In any driving situation (straight forward, straight forward, right turn forward, right turn backward, left turn) Any road surface conditions (paved road, dirt road, unpaved mountain road, sandy ground, convex top surface, concave valley bottom, boundary between slope and flat land, roadside facility and road surface) In other words, no form has been proposed that can cope with a large level difference, a narrow groove on a paved road surface, a low protrusion, and the like.

  Further, in Patent Document 2, when an actuator is operated electrically to get over a level difference at a doorway to a garage or a site, when traveling on a rough road, or traveling on a flat ground, the switch must be switched each time. The mechanism is very complicated, the production costs are expensive, and the repair costs are burdensome for both manufacturers and users.

  Further, in Patent Document 3, a vehicle speed detection sensor is provided as an UP moving means, and is stored in a storage position when traveling at a low speed and moved downward when traveling at a high speed, which is very expensive. It is a device, and repair costs are naturally high.

  The present invention has been made paying attention to the above-mentioned problems, and its purpose is to avoid interference with the road surface, etc. without impairing the entanglement prevention function, and to be simple, light and inexpensive to produce. It is to provide UP.

  In order to achieve the above object, according to the first aspect of the present invention, the front underrun protector is arranged so that the UP main body extends in the front vehicle width direction of the vehicle, and the front, rear, left and right ends are approximately 45 mm. ° It is characterized by having a surface bent forward and backward and upward, and an elevation surface on the front surface when viewed from the front, and mounted so as to be movable up and down.

  In the second aspect of the present invention, the side underrun protector is arranged so that the UP main body extends between the front wheel and the rear wheel of the vehicle, and the front, rear, left and right ends are oriented approximately 45 ° upward. It is characterized by having a bent surface and an elevation surface on the front side when viewed from the side, and is mounted so as to be movable up and down.

  In the third aspect of the invention, the rear underrun protector is arranged so that the UP main body extends in the rear vehicle width direction of the vehicle, and the front, rear, left and right ends are bent upward by about 45 °. In addition, it is characterized in that it has an elevation on the front as viewed from the rear and is mounted so as to be movable up and down.

  According to a fourth aspect of the present invention, the width of the lower side of the UP main body is such that FUP and RUP are front and rear widths and SUP is at least near the tire width when viewed from the front.

  According to a fifth aspect of the present invention, the UP main body has a function of urging the UP main body to an initial position by providing means such as a leaf spring type, a coil spring type, a hydraulic type, a pneumatic type, and a gas type. And

  In a sixth aspect of the present invention, the side underrun protector according to the second aspect is characterized in that, in the case of a large vehicle, a support frame on the rear wheel side is fixed to the axle of the rear wheel.

  According to the underrun protector according to the present invention, when the lower surface of the UP main body interferes with the road surface, it avoids upward and immediately returns to the original position, so that the UP main body can be brought close to the road surface as much as possible. Entrainment of an object can be prevented.

  Hereinafter, embodiments of the present invention will be described based on illustrated examples.

  1 and 2 show a first embodiment of a front underrun protector according to the present invention, which is an example of a vehicle having a low vehicle height, and a shock absorber attached to a body frame 4 to support the UP body 1 and the UP body 1. 2, a body frame 4, and a bracket 3 attached to the shock absorber 2.

  The lower surface of the UP body 1 is formed by integrally molding a material resistant to friction such as steel, superalloy, hard resin, etc., or ceramic, steel, superalloy, high-strength plastic, etc. are pasted in whole or in part on the surface of ordinary material. May be. The bottom surface is perforated so that water and dust do not collect, such as porous, mesh, vertical lattice, grid lattice, and diagonal lattice.

  The front-rear width varies depending on the vehicle type, but at least the tire width is necessary. In other words, the FUP with the shape shown in FIG. 1 does not fit into a narrow groove, and even if an obstacle such as a stone is pushed away or climbed over and backed as it is, the FUP avoids upward and returns to its original position. The shock is not transmitted to the person.

  On the other hand, the elevation surface may be integrally formed of the same material as the lower surface, but may be a plate shape, a horizontal lattice shape, a saw shape, a mesh shape, a parallel bar shape, or the like.

  Moreover, since the impact from the front to an elevation surface is absorbed by the bracket 3, damage to both an impact object and FUP can be avoided. On the other hand, the bracket 3 may be a coil spring.

  3 and 4 show a second embodiment of the front under-run protector according to the present invention, which is an example of a vehicle having a high vehicle height, and is attached to the UP main body 1, the frame 8 attached to the UP main body 1, and the body frame 4. The UP main body 1 is made of the same material as that of the first embodiment, but the form is a double structure of the elevation surface 1a.

  The bracket 3 attached to the vehicle body frame is fixed with bolts 11. However, by providing the long hole 12, an impact absorbing effect is exhibited in the event of a collision.

  5 and 6 show a first embodiment of the side underrun protector according to the present invention, which is an example of a vehicle having a low vehicle height. Between the UP main body 1, the bracket 8 attached to the UP main body 1, and the lower surface 14 of the vehicle body. It is comprised from the leaf | plate spring 13 attached to.

  Since there is not much space between the UP main body 1 and the lower surface of the vehicle body, a leaf spring is used. Since the leaf spring slightly moves laterally even from an impact from the side, damage to the SUP can be avoided.

  7 and 8 show a second embodiment of a side underrun protector according to the present invention, which is an example of a vehicle having a high vehicle height. The conventional side guard 15 is applied to the UP main body 1 through a shock absorber 2 and a coil spring 9. Attached.

  9 and 10 show a third embodiment of the side underrun protector according to the present invention, which is an example of a vehicle with a high vehicle height. The support 19 on which the side guard 15 on the front wheel side is attached to the vehicle body frame 4 It is fixed freely. The saddle 15 on the rear wheel side has a support frame 17 fixed to the axle 18 of the rear wheel. As a result, the distance from the road surface of the UP main body 1 near the rear wheels is kept constant regardless of the loading amount of the vehicle.

  11 and 12 show a fourth embodiment of a side underrun protector according to the present invention, which is an example of a vehicle with a high vehicle height. The side guard 15 is attached to the UP main body 1 by stopping the conventional side guard 15 just before the rear wheel. It is mounted between the rear wheel and the side guard via the shock absorber 2 and a bracket 20 attached to the loading platform 21.

  The bracket 20 and the support frame 22 attached to the loading platform are provided with a function that can be manually moved up and down, and can be operated with one touch, and can be moved up and down depending on whether or not the vehicle is loaded, so that it is always close to the road surface. Can be kept.

  FIGS. 13 and 14 show a first embodiment of the rear underrun protector according to the present invention, which is an example of a vehicle with a high vehicle height. The UP main body 1 is connected to a shock absorber 2 via a bracket 3 attached to a vehicle body frame 4. The impact absorbing member 23 is used. Further, by attaching the conventional rear bumper 24 to the UP body 1, a simple design can be achieved.

  Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to the present embodiment, and the present invention can be applied even if there is a design change or the like without departing from the gist of the invention. include.

  For example, in the first embodiment of the rear underrun protector of the present invention, although not shown in the figure, a function that can be manually moved up and down may be provided.

  Furthermore, the UP of the present invention can be applied to various vehicle types.

It is a side view which shows Embodiment 1 of FUP of this invention. It is a front view of the right half of FUP and a bumper shown in FIG. It is a side view which shows Embodiment 2 of FUP of this invention. FIG. 4 is a front view of the right half of the FUP and bumper shown in FIG. 3. It is a side view which shows Embodiment 1 of SUP of this invention. It is a front view of the left half of SUP shown in FIG. It is a side view which shows Embodiment 2 of SUP of this invention. FIG. 8 is a rear view of the left half of the SUP shown in FIG. 7. It is a side view which shows Embodiment 3 of SUP of this invention. FIG. 10 is a bottom view of the SUP shown in FIG. 9. It is a side view which shows Embodiment 4 of SUP of this invention. FIG. 12 is a rear view of the left half of the SUP shown in FIG. 11. It is a side view which shows Embodiment 1 of RUP of this invention. FIG. 14 is a rear view of the RUP shown in FIG. 13.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 FUP main body 1a Elevation surface of FUP main body 2 Shock absorber 3 Side frame side bracket 4 Side frame 5 Front bumper 6 Bonnet 7 Front wheel 8 UP side bracket 9 Coil spring 10 Pin 11 Bolt 12 Long hole 13 Plate spring 14 Lower surface of vehicle body 15 Side Guard 16 Rear wheel 17 Axle side support frame 18 Rear wheel axle 19 Side frame side support part 20 Cargo side bracket 21 Cargo base 22 Support frame 23 Shock absorbing member 24 Rear bumper

Claims (6)

  The UP body is arranged so as to extend in the width direction of the front part of the vehicle, and the front / rear / right / left ends are bent upwards by about 45 °, and the front side is equipped with an elevation. The front underrun protector is mounted so as to be movable up and down.   The UP body is arranged so as to extend between the front and rear wheels of the vehicle, and the front and rear, right and left ends are bent upwards by about 45 °, and the front surface is seen from the side. A side underrun protector that is equipped with a vertical movement.   The UP body is arranged so as to extend in the rear vehicle width direction of the vehicle, and the front, rear, left and right ends are bent about 45 ° upward, and the front surface as viewed from the rear is provided with an upright surface. A rear underrun protector that can be moved up and down.   4. The underrun protector according to claim 1, wherein the lower surface of the UP main body has a front-rear width of FUP and RUP as viewed from the front, and a SUP has a width close to the tire width even at the minimum.   The vertical movement function of the UP main body is provided with means such as a leaf spring type, a coil spring type, a hydraulic type, a pneumatic type, and a gas type, and has a function of biasing to an initial position. Underrun protector.   3. The side underrun protector according to claim 2, wherein, in the case of a large vehicle, a support frame on the rear wheel side is fixed to an axle of the rear wheel.

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