JP2001080363A - Structure of wing roof mounting part of wing vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for mounting an elastic member on a hinge to be attached to a center beam so as to support repulsion force by the elastic member by attaching the elastic member of such as rubber capable of suppressing vibration generated between the center beam and an inner frame member of a wing roof in traveling. SOLUTION: This wing vehicle is provided with a center beam hung across above a floor surface of a deck approximately in parallel to a center line in a longitudinal direction of a car body, and an inner frame member 17 of a wing roof attached to the center beam. An elastic member 24 is attached to an inner frame member side hinge piece 16a of a hinge 16 for joining the center beam and the inner frame member of the wing roof so as to prevent reduction of a distance between the center beam and the inner frame member of the wing roof when the wing vehicle travels and the center beam 15 vibrates up and down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a wing roof mounting portion in a wing vehicle.

[0002]

2. Description of the Related Art A so-called wing vehicle (FIG. 4) is used for transporting cargo which needs to be prevented from being damaged by rain and dew. In this type of vehicle, a hollow beam member having a rectangular cross section, usually called a center beam, is erected substantially parallel to the longitudinal centerline of the vehicle body above the bed surface of the body, and on both side surfaces of the beam member. A pair of wings whose cross section in the vehicle width direction has an L-shaped cross section is pivotally connected by a hinge so as to be vertically movable,
The wing is pivoted up and down by a hydraulic actuator to open and close the cargo compartment on the cargo bed.
The above-mentioned center beam is usually extended in the longitudinal direction of the vehicle body with its both ends fixed to the center of a gate structure provided at the front and rear ends of the carrier. However, it is difficult to provide sufficient strength to the length of the carrier, and vibration is likely to occur during traveling.

Referring to FIG. 5, reference numeral 10 denotes a cab of a truck, 11 denotes a frame, 12 denotes a carrier, and 13 and 1
Reference numeral 4 denotes a gate structure established at the front and rear ends of the loading platform 12, and 15 denotes a center beam whose front and rear ends are fixed to the upper central portion of the gate structure. The center beam 15 has a generally rectangular cross section. It is made of hollow square wood. And
As shown in FIG. 7, the distance between the center beam 15 pivotally supported by the hinge 16 and the inner frame member 17 of the wing roof is separated by a distance a when the wing roof is closed down. or,
No support member such as a support is provided in the middle of the center beam 15. For this reason, the center beam 15 often vibrates up and down during traveling in a mode indicated by a dotted line 15 'in FIGS. As a result, there is a problem that an excessive force acts on the mounting portion of the center beam, the strength cannot withstand, and the center beam is damaged.

[0004] As a method of solving such a problem,
The front and rear mounting parts of the center beam are firmly connected to withstand vibration. The center beam is attached to the gate structure using a pin structure to reduce the load on the attachment portion. And so on. However, this method is incompatible with weight reduction, and cannot satisfy all conditions under various specification conditions.In addition, the amplitude of the center beam increases, and the center beam may be damaged or the wing roof itself may be damaged. The effect on the strength is large, which is a problem.

[0005]

In order to solve such a problem, an elastic material such as rubber for suppressing vibration during traveling generated between the center beam and the inner frame material of the wing roof is attached, and a repulsive force by the elastic material is supported. Therefore, it is an object of the present invention to adopt a configuration in which an elastic member is attached to a hinge for attaching the center beam to cope with the problem.

[0006]

Means for Solving the Problems (1) A center beam erected substantially parallel to the longitudinal center line of the vehicle body above the floor of the loading platform, and an inner frame material of a wing roof is hinged to the center beam. In a wing vehicle, an elastic body 24 is attached to the hinge member 16a on the inner frame member side of the hinge 16 connecting the center beam and the inner frame of the wing roof. The distance a between the inner frame members of the wing roof is prevented from decreasing. In the configurations described in (2) and (1), the elastic body is mounted at a position different from the hinge mounting position. (3) A small buffer is used as the elastic body.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings. First, in FIG. 4, reference numeral 18 denotes a pair of wing roofs having an L-shaped cross section in the vehicle width direction, which is usually made of an aluminum alloy or the like to reduce weight. The inner side edge of the vehicle body is hinged to the center beam 15 by a hinge 16. Reference numeral 19 denotes a side swing hinged at its lower edge to a side edge of the loading platform 12 by a hinge 20. Reference numeral 21 denotes a rear door having the side edges of the husband and her husband attached to a rear gate structure side pillar by a hinge 22, and reference numeral 21 'denotes a front wall fixed to a front gate structure. Therefore, the hydraulic cylinder 2
3 and the like, the wing roof 18 is pivoted downward around the respective hinges 16, the side doors 19 are raised, and the rear door 21 is closed, so that the cargo compartment is substantially sealed on the carrier 12. Can be formed.

The present invention relates to a structure in the vicinity of a hinge for hingedly attaching the inner frame member 17 of the wing roof 18 to the center beam 15 in such a wing vehicle. In FIG. 1, reference numeral 24 denotes an elastic body according to the present invention. This is attached to the inner frame member 17 of the wing roof. More specifically, one hinge piece 1 of a hinge 16 composed of two hinge pieces.
6a is fixed to the inner frame member 17 by bolts 23, and a hat-shaped bracket 26 is integrally fixed to the hinge pieces 16a by bolts 25. Hat type bracket 2
An elastic body 24 is fixed to the top of the base 6 with a fixing tool or an adhesive.

FIG. 2 shows a state in which the wing roof 18 is closed via a hinge to which the elastic body 24 is attached. In this state, there is a distance a between the center beam 15 and the hinge piece 16a. When the center beam 15 is displaced upward by vibration during traveling, the elastic body 24 is compressed (FIG. 2B). As a result, a repulsive force is received by the elastic body 24, and displacement can be suppressed as compared with the case without the elastic body 24. By regulating the upward displacement in this way,
The total amplitude can also be reduced. The position where the elastic body 24 is attached is preferably near the center in the longitudinal direction of the body having the largest displacement.

Although FIG. 2 uses rubber or the like as the elastic body, a miniature damper (small shock absorber) can be used. FIG. 3 shows an example in which the elastic body 24 is attached independently of the hinge 16, and is directly attached to the inner frame member 17 of the wing roof with bolts 25.

[0011]

As described above, since the inner frame member of the wing roof is attached to the hinge portion for pivotally supporting the center beam or the elastic member at a position different from the hinge, the center beam 15 can be vibrated vertically. A decrease in the distance a between the center beam 15 and the inner frame member 17 can be prevented. Therefore, the number of hinges at the hinge attachment portion between the wing roof and the center beam, or the attachment structure at the attachment portion between the front and rear ends of the center beam and the gate structure can be relatively simplified. Therefore,
The weight of the entire wing roof can be reduced.

As described above, since the amplitude of the center beam 15 is reduced by the effect of the elastic body 24, the force applied to the wing roof mounting portion is reduced, the deformation of the L-shaped wing roof is reduced, and the amplitude of the side surface of the wing roof is further reduced. Because it is reduced, the structure becomes extremely advantageous in terms of strength with respect to the wing body. As a result, cracks in each part, loosening and deformation of bolts can be prevented, and furthermore, there is a great advantage that weight and cost can be reduced by setting appropriate strength.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of the present invention.

FIG. 2A shows a positional relationship of an elastic body when a wing roof is closed. (B) shows an operation mode of the elastic body when the center beam vibrates.

FIG. 3 shows an example in which an elastic body is attached to a position different from a hinge.

FIG. 4 is an overall perspective view of a wing vehicle.

FIG. 5 is a diagram showing a vertical vibration state of a center beam.

FIG. 6 is a view taken in the direction of arrows AA in FIG. 5;

FIG. 7 shows the structure of a hinge part to be pivotally mounted on a known wing roof.

[Explanation of symbols]

10 Cab 11 Frame 12 Loading bed 13,14 Gate 15 Center beam 16 Hinge 16a Hinge piece 17 Inner frame material (of wing roof) 18 Wing roof 20 Hinge 21 Rear door 21 'Front wall 22 Hinge 23 Cylinder 24 Elastic body 25 Bolt 26 (Hat cross section) Bracket

Claims (3)

[Claims] 1. A wing vehicle having a center beam installed above a loading floor and substantially parallel to a longitudinal center line of a vehicle body and an inner frame material of a wing roof hinged to the center beam. An elastic body (24) is attached to the hinge member (16a) on the inner frame member side of the hinge (16) that connects the hinge to the inner frame of the wing roof, and the center beam when the center beam (15) vibrates up and down when the wing vehicle is running And the distance a between the inner frame material of the wing roof and
The structure of a wing roof mounting portion in a wing vehicle, wherein a reduction in the number of wings is prevented. 2. The structure of a wing roof mounting portion in a wing vehicle according to claim 1, wherein the elastic body is mounted at a position different from the hinge mounting position. 3. The structure of a wing roof mounting portion in a wing vehicle according to claim 1, wherein a small shock absorber is used as the elastic body.