JPH11278315A - Cargo bed frame fixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate the vertical and longitudinal movements of a cargo bed frame relative to a chassis frame simultaneously. SOLUTION: A first bracket 4 is fixedly welded in place to a cargo bed frame 3 and a second bracket 5 in place to a chassis frame 2 so that their base boards 4a and 5a and side boards 4b and 4c and 5b and 5c are respectively held parallel to each other. A first fastener 6 is inserted into through holes drilled in the base boards 4a and 5a to regulate the vertical movement of the chassis frame 2 relative to the cargo bed frame 3, as well as second fasteners 7 are inserted into through holes drilled in the side boards 4b, 4c, 5b and 5c to regulate the longitudinal movement thereof. The bolt of the first fastener 6 is set perpendicularly to the longitudinal direction of those frames 2 and 3, and the bolts of the second fasteners 7 are set to have symmetry with respect to the bolt of the first fastener 6 or at an angle of 45 degrees thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier frame fixing device disposed between a truck chassis frame and a carrier frame for regulating the movement of the carrier frame with respect to the chassis frame.

[0002]

2. Description of the Related Art Conventionally, a truck carrier frame is provided with a dedicated fastener so as not to move in a vertical direction with respect to its chassis frame, that is, in a direction perpendicular to a road surface, and in a front-rear direction, that is, in parallel with a road surface. It is fixed to the chassis frame with another dedicated fastener so that it does not move in the direction. As described above, the fastener that regulates the vertical movement and the fastener that regulates the forward-backward movement are separately used as independent exclusive fasteners. 5 to 7 show conventional dedicated fasteners, of which FIG. 5 is for restricting the vertical movement, which is constituted by a U bolt 100 and a nut (W nut in FIG. 5) 101. , Both the chassis frame 102 and the carrier frame 103 placed on the chassis frame 102 are gripped by the U bolt 100, and the U bolt 100
A nut 101 is screwed into the nut via a stopper plate 104. FIG. 5B is a cross-sectional view taken along the line AA of FIG. 6 and 7 are for restricting the movement in the front-rear direction, and FIG.
The first bracket 200 is attached to the carrier frame 103,
The second bracket 201 is fixed to the chassis frame 102 by welding, and the first bracket 200 and the second
The bracket 201 is connected with a bolt / nut fastener 202, and the fastener 202 is arranged at a required angle to the road surface. On the other hand, the thing of FIG. 7 mounts the substantially V-shaped bracket 300 between both the chassis frame 102 and the carrier frame 103,
It is fixed by bolts or the like.

[0003]

However, the fastener for restricting the vertical movement and the fastener for restricting the forward / backward movement are separate dedicated fasteners, and these need to be used separately. It is cumbersome and, in addition to this, a plurality of these, usually 8
Since each of them is used individually, this complication is unfavorably promoted. Further, since two types of dedicated fasteners must be prepared, the number of parts increases accordingly, which is not preferable from the viewpoint of design and parts management. By the way, the two fasteners are used as a pair of fasteners to regulate the vertical movement and the front-back movement.

[0004] It is an object of the present invention to provide a carrier frame fixing device capable of simultaneously restricting the vertical and horizontal movements of the carrier frame with respect to the chassis frame.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a carrier frame fixing device according to the present invention can simultaneously regulate the vertical movement and the longitudinal movement of the carrier frame relative to a chassis frame such as a truck. Things
A first bracket fixed to the chassis frame by welding or bolts and the like, a second bracket fixed to the carrier frame by welding or bolts and the like, and a combination structure of fasteners for connecting the first bracket and the second bracket. Things. According to the fixing device having such a combination structure, the above-described vertical movement and front-rear movement can be simultaneously controlled only by connecting and fixing the first bracket and the second bracket. The complexity of properly using the fasteners is eliminated, and the device as the fastener is simplified.

[0006] The fastener in the loading frame fixing device of the present invention is arranged so that a force perpendicular to the longitudinal direction of the chassis frame and the loading frame is applied to restrict vertical movement. 1 Fastener, and a second fastener disposed on both sides or one side of the first fastener so as to apply a force in the same direction as the longitudinal direction on both sides or one side of the first fastener to regulate movement in the front-rear direction. It is. For example,
In the case where the first fastener and the second fastener are composed of bolt and nut fastening members, the bolts of the first fastener are disposed perpendicular to the longitudinal direction of the chassis frame and the bed frame, and the second fastener is formed. The bolts of the fasteners are symmetrical on both sides of the bolts of the first fastener and at the required angle with respect to the bolts of the first fastener.
It is preferred that each be arranged at 5 degrees. The required angle mainly depends on the strength of the second fastener, which is appropriately selected according to the magnitude of the force acting in the front-rear direction, in the case of the above example, the bolt. by the way,
The second fastener is not necessarily arranged symmetrically with respect to the first fastener as long as the movement of the carrier frame in the front-rear direction with respect to the chassis frame can be regulated and the force in the front-rear direction can be maintained. Alternatively, it may be provided only on one side of the first fastener. As the first fastener and the second fastener, a bolt / nut fastening member is generally used as in the above example, but the invention is not limited to this. For example, a member such as a key or a pin may be used. Of course, it may be used.

[0007]

FIG. 1 shows an example of an embodiment of the present invention.
This will be described with reference to FIGS. The loading frame fixing device 1 according to the present embodiment is mounted between a chassis frame 2 of a truck and a loading frame 3 as shown in FIG. 1, and the vertical movement of the frame 3 with respect to the frame 2 and the front-back direction Movement can be regulated at the same time. Such a fixing device 1 is, as shown in FIG.
The first bracket 4 fixed to the frame 2 by welding, the second bracket 5 fixed to the frame 2 by welding, and the first fastener 6 and the second fastener connecting the first bracket 4 and the second bracket 5 7 combination structure. The same applies to the case where the first bracket 4 and the second bracket 5 are fixed by bolts or the like.

[0008] The first bracket 4 and the second bracket 5
In the case of being fixed to the frames 2 and 3 by welding as described above, for example, it is processed into a form as shown in FIG. That is, the first bracket 4 bends both sides of the rectangular thin steel plate, and the side plates 4b and 4c are at a required angle with respect to the substrate 4a (see FIG. 2).
(Angle formed between the bolt of the first fastener 6 and the bolt of the second fastener 7) as shown in FIG.
A predetermined through hole is formed substantially at the center of the substrate 4a and the side plates 4b and 4c. The second bracket 5 has a form similar to that of the first bracket 4, and is formed by bending both sides of a rectangular thin steel plate so that the side plates 5b and 5c are at 45 degrees with respect to the substrate 5a, which is equal to the above angle. In addition to the shaping, a predetermined through hole is formed substantially at the center of the substrate 5a and the side plates 5b and 5c, and the first fastener 6 engages with the through holes of the substrate 4a and the substrate 5a, and the side plate 4b and The second fastener 7 engages with the side plate 5b and the through holes of the side plate 4c and the side plate 5c. In the present embodiment, the first fastener 6 and the second fastener 7 use bolt and nut fastening members having the same specifications for reasons such as common use of components. Alternatively, different specifications may be used.

When the first bracket and the second bracket are fixed by bolts or the like, the first bracket and the second bracket are fixed to each other.
The bracket 4 may be additionally processed into a form as shown in FIG. That is, the side plate 8 is attached to the substrate 4a of the first bracket 4 and the side ends of the side plates 4b and 4c.
The first bracket 8 may be formed by attaching a through hole to the side plate 8a for fixing the side plate 8a with a bolt or the like. Note that the second bracket is the same as the case of the first bracket 8 described above, and the description thereof will be omitted.

Next, how to use the present apparatus 1 will be described with reference to FIG. When using the present apparatus 1, the first
Substrate 4a and side plates 4b and 4c in bracket 4
Are fixed to the carrier frame 3 by welding the side end surfaces thereof to the predetermined positions of the loading frame 3, and the side end surfaces of the substrate 5a and the side plates 5b and 5c of the second bracket 5 are positioned at predetermined positions of the chassis frame 2 so that the substrate 5a is parallel to the substrate 4a. It is fixed by welding. In this case, the side plates 4b and 5b and the side plate 4c
And 5c are arranged in parallel with each other. Then, the first fastener 6 is engaged with the through-holes of the board 4a and the board 5a, that is, a bolt is passed through the through-hole, and a nut (W-nut in the same figure) is screwed into the bolt, thereby connecting the first bracket 4 with the first bracket 4. When the second bracket 5 is connected, a force perpendicular to the longitudinal direction of the frames 2 and 3 is applied, so that the vertical movement of the frame 3 with respect to the frame 2 can be restricted. At the same time, the second fasteners 7 are respectively inserted into the through holes of the side plates 4b and 5b and the through holes of the side plates 4c and 5c.
That is, if the first bracket 4 and the second bracket 5 are connected by connecting a bolt (a W nut in the figure) with a bolt through these through holes, A directional force is applied, so that movement in the front-rear direction can be restricted. In this case, by the second fastener 7,
It goes without saying that, in addition to the force in the same direction as the longitudinal direction, a force perpendicular to the longitudinal direction is also applied. By the way, the bolts of the first fastener 6 are connected to the substrate 4a and the substrate 5a.
, That is, perpendicular to the longitudinal direction of the frame 2 and the frame 3, the bolts of the second fastener 7 are symmetrical with respect to the bolts of the first Each of them is arranged at 45 degrees.

[0011]

According to the carrier frame fixing device of the present invention, it is possible to simultaneously regulate the vertical movement and the longitudinal movement of the carrier frame with respect to the chassis frame.

[Brief description of the drawings]

FIG. 1 is an external view of a place where a device for fixing a carrier frame according to an embodiment is used.

FIG. 2 is a front view showing a usage mode of the present apparatus.

3 shows a first bracket (or a second bracket) according to the device of FIG. 2;
It is an external appearance perspective view of a bracket).

FIG. 4 is an external perspective view of a first bracket different from that of FIG. 3;

FIG. 5 is a front view showing a usage form of a conventional dedicated fastener.

FIG. 6 is a front view showing a usage form of a conventional dedicated fastener.

FIG. 7 is a front view showing a usage form of a conventional dedicated fastener.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 This apparatus 2 Chassis frame 3 Loading frame 4 First bracket 4a Board (1st bracket) 4b, 4c Side plate (1st bracket) 5 2nd bracket 5a Board (2nd bracket) 5b, 5c Side plate (2nd bracket) 6 First fastener 7 Second fastener

Claims (2)

[Claims] 1. A loading frame fixing device capable of simultaneously restricting vertical movement and longitudinal movement of a loading frame with respect to a chassis frame of a truck, a first bracket fixed to the chassis frame, and the loading platform. An apparatus for fixing a carrier frame, comprising a combination structure of a second bracket fixed to a frame and a fastener for connecting the first bracket and the second bracket. 2. The first fastener according to claim 1, wherein the first fastener is arranged to apply a force perpendicular to a longitudinal direction of the chassis frame and the bed frame to restrict the vertical movement. In addition, a second fastener is provided on both sides or one side of the first fastener so as to apply a force in the same direction as the longitudinal direction in order to regulate the movement in the front-rear direction. The fixing device for a carrier frame according to claim 1, wherein: