JP2002145125A - Coming off prevention structure of rear gate chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coming off prevention structure of a rear gate chain capable of holding it surely by the simple structure. SOLUTION: The rear gate chain 1 consists of a chain part 2 and a bracket 3. The other end part 21 of the chain part 2 is attached to a rear gate 82 provided at a rear end of a load-carrying platform so as to open and close by a shoulder bolt 22. The bracket 3 has a crank shape and a stepped part 34 by bending points 31, 32 and is provided with a round hole 33 at one end and a deformed hole 35 at the other end. This deformed hole 35 consists of a square hole part 36, a hole part 37, and a groove part 38 and can be engaged with a storage pin 52. The chain part 2 and the bracket 3 are mutually connected by the round hole 33 to constitute a connection part 23. A vinyl cover 4 is provided on the bracket 3 so as to cover from the connection part 23 to a part of the deformed hole 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing a rear gate chain from coming off, for example, for holding a gate chain at a loading gate of a truck.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 1, the opening of a rear gate 82 on a bed 84 of a truck 81 is regulated by using a gate chain connected to a side gate 83. As shown in FIG. 12, a connecting portion between the chain 92 and the bracket 93 in the gate chain 91 is covered with a vinyl cover 94 for the purpose of preventing rubbing noise and protecting it from rust and damage. The bracket 93 is provided with a hole 95 for pin fitting.

[0003]

However, when the gate chain 91 is in the housed state, no tension acts between the chain 92 and the bracket 93, so that the bracket 93 comes off from the pin due to vibration during traveling, and the loading platform 84 (see FIG. 1), which may cause abnormal noise and scratches.

In order to prevent this problem, a method of partially reducing the hole size 96 of the bracket 93 as shown in FIG. 13 is conceivable. However, a sufficient effect can be obtained due to processing variations and the like. Can not. Further, if the hole size 96 is too small, there arises a problem that the bracket 93 cannot be mounted due to a variation in products. The present invention has been made in view of such a situation, and an object of the present invention is to provide a structure for preventing a rear gate chain from coming off which can be securely held with a simple structure.

[0005]

The structure for preventing the rear gate chain from slipping off according to the present invention has been made to solve such a problem, and has a chain-like chain portion and a step connected to one end of the chain portion. A rear gate chain, which is formed from a bracket having a mounting shape and is connected to a side gate, which is provided at the rear end of the loading platform so as to be openable and closable, and holds the rear gate substantially horizontally. A part of the hole is covered with a soft cover to prevent the bracket from coming off the pin engaged with the hole.

[0006] The cover also covers a portion connecting the chain portion and the bracket.

[0007] The cover has a slit at an end of a portion covering a part of the hole.

The cover covers a part of the hole with an extension, and the extension is provided on only one surface of the bracket.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a rear gate chain preventing structure according to the present invention will be described with reference to the drawings. FIGS. 1 to 9 show a structure for preventing a rear gate chain from falling off according to an embodiment of the present invention, and FIGS.

As shown in FIG. 1, the structure for preventing a rear gate chain from falling off according to one embodiment of the present invention is applied to a rear gate chain of a truck. Track 8
The one loading platform 84 has side gates 83 on both sides and a rear gate 82 at the rear end so as to be openable and closable. Further, the rear gate chain 1 is provided at both corners of the rear gate 82.

Next, the rear gate chain 1 of the present embodiment
Will be described with reference to FIGS. FIG. 2 or FIG.
As shown in FIG. 1, the rear gate chain 1 includes a chain portion 2 formed by connecting a plurality of elliptical rings to form a chain, and a bracket 3 connected to one end of the chain portion 2. In addition, as shown in FIG.
1 remains chained.

This bracket 3 is, as shown in FIG.
Bending points 31 and 32 are made of a rectangular plate with rounded ends.
Is formed into a stepped shape by bending into a crank shape, one end of which has a round hole 33 for connecting the chain portion 2 and the other end is between the bending point 31 and the bending point 32 Hole 35 provided over the stepped portion 34 which is the slope of
(Hole). The deformed hole 35 connects a square hole 36 provided on the stepped portion 34 and a hole 37 provided on the flat surface at the other end of the bracket 3 with a groove 38 slightly smaller than the diameter of the hole 37. It has a roughly gourd shape.

As shown in FIG. 2, a portion from a connecting portion 23 between the chain portion 2 and the bracket 3 to a bending point 31 of the bracket 3 is covered with a vinyl cover 4. That is, the vinyl cover 4 covers a part of the deformation hole 35, specifically, the square hole 36.

In this embodiment, both the chain portion 2 and the bracket 3 are made of metal, but one or both of them may be made of, for example, plastic.

As shown in FIG. 4, the rear gate chain 1 constructed as described above is attached to the rear gate 82 by screwing a step bolt 22 penetrating the other end 21.

Next, a method of using the rear gate chain 1 will be described with reference to FIGS. When loading a long object (not shown) exceeding the length of the loading platform 84 on the truck 81, the rear gate 82 at the rear of the loading platform is often opened and loaded onto the loading platform 84 as shown in FIG. However, since lights (not shown) such as brake lights and turn indicators are provided in the lower portion behind the loading platform, the rear gate 82 is provided so that a following vehicle can check the lights when traveling.
Must be held substantially horizontally. In order to hold the rear gate 82 horizontally, as shown in FIG. 5, the deformed hole 35 (see FIG. 2) provided in the bracket 3 of the rear gate chain 1 fixed to the swinging end of the rear gate 82 is inserted into the side gate 83. Hooked on a pin 51 provided at the upper end of the rear end. In this case, the tension F always acts on the bracket 3 and the pin 51 in the direction of the arrow due to the weight of the rear gate 82, and the pin 5
The bracket 3 does not come off from 1.

On the other hand, when the rear gate chain 1 is not used,
For example, when the rear gate 82 is in an open state (suspended state) at the time of loading, or when the rear gate 82 is erected and traveled, it is better to store the rear gate chain 1 in terms of loadability and load capacity of luggage. Because it ’s convenient for
As shown in FIG. 6, the bracket 3 is fitted to a T-shaped pin 52 (see also FIG. 3) provided below the rear gate 82 to house the rear gate chain 1.

The fitting method of the bracket 3 to the pin 52 is as follows.
As shown in FIG. 7, a pin 52 is provided below the flat portion between the bending point 31 of the bracket 3 and the connecting portion 23 between the chain portion 2.
And by sliding the bracket 3 in parallel, the pin 52 passes through the square hole 36 of the bracket,
It passes through the groove 38 and fits into the deformation hole 35 as shown in FIG. In this state, the tension F is applied to the rear gate chain 1.
Does not act, there is a danger that it will come off due to vibration during vehicle running as in the conventional case (see FIG. 12). However, it is mounted to prevent the rubbing noise between the chain portion 2 and the bracket 3 and to protect it from rust and damage. As shown in FIG. 8 or FIG. 9, the vinyl cover 4 extending to the bending point 31 of the bracket 3 prevents the pin 52 from coming off.

That is, in the mounted state, as shown in FIG. 9, the terminal of the vinyl cover 4 is hooked on the pin 52 to prevent it from coming off, so that the rear gate chain 1 does not come off while the vehicle is running, and the loading platform 84 (see FIG. 9). 1)), the vehicle body will not be damaged and no noise will be generated. Also, at the time of attachment / detachment, the vinyl cover 4 bends over the pin 52 by applying a force, so that the bracket 3 can be detached from the pin 52 or attached.

As described above, in this embodiment, the position of the vinyl cover 4 is extended to the bending point 31 of the bracket 3 and a part of the deformed hole 35 is covered with the vinyl cover 4, so that the bracket 3 can be easily formed. Pin 5 when the vehicle is running
2 can be prevented.

Further, in this embodiment, the following effects can be obtained. First, the extension of the vinyl cover 4 can be expected to further improve the noise prevention effect and the scratch prevention effect. Next, when the bracket 3 is mounted, most of the bracket 3 is covered with the vinyl cover 4, so that the bracket 3 has conventionally become hot or cold in a hot environment or a cold environment. It reduces the discomfort by having it, which reduces discomfort. Further, by extending the vinyl cover 4 to the bending point 31, the stepped portion 34 formed between the bending points 31 and 32 functions as a stopper for the vinyl cover 4 and can prevent the vinyl cover 4 from shifting. There is no need to use an attachment method, and costs can be reduced.

The present invention is not limited to the above embodiment, and various modifications and changes are possible. For example, the shape of the deformed hole 35 of the bracket 3 may be an elongated hole, a square hole, or another hole having a size large enough to allow the pins 52 to pass through. The vinyl cover 4 is not limited to a resin material, but may be a rubber material or the like. It may be soft. Further, as described above, the vinyl cover 4 is integrally formed from the connecting portion 23 to the bending point 31 of the bracket 3, but the connecting portion 23 and the bending point 31 of the bracket can be formed by different members. .

Next, a modification of the structure for preventing the rear gate chain from coming off according to the present invention will be described with reference to FIGS. Since this modification relates to the shape of the vinyl cover, the description will be limited thereto.

First, a first modification will be described with reference to FIG. As shown in the figure, a slit 61 is provided at the end of the vinyl cover 6. In this case, since the slit 61 is closed at the time of fitting, the bracket 3 can be prevented from being detached from the pin 52 (see FIG. 8 or FIG. 9) during running of the vehicle.
When removing or attaching from the vinyl cover 6
Since the width of the slit 61 is increased, attachment and detachment can be performed more easily.

Next, a second modification will be described with reference to FIG. As shown in the figure, of the terminals of the vinyl cover 7, only the lower surface of the bracket 3 is cut out. That is, the extension 71 extending to the bending point 31 is formed only on the upper surface. Also in this case, similarly, when the bracket 3 is driven by the vehicle, the pins 52 (FIG.
) Can be prevented, but when the bracket 3 is removed from or attached to the pin 52,
Since only one vinyl cover 7 needs to be bent, the attachment and detachment of the bracket 3 from the pin 52 can be performed more easily. In addition, it is also possible to form the extending portion 71 only on the lower surface instead of only the upper surface.

[0026]

The structure for preventing the rear gate chain from falling off according to the present invention comprises a chain-like chain portion and a stepped bracket connected to one end of the chain portion, and is provided at the rear end of the loading platform so as to be freely opened and closed. A rear gate chain that holds the rear gate substantially horizontally by connecting the rear gate to the side gate, and covers a part of the hole provided from the stepped portion of the bracket to the tip end with a soft cover and engages with the hole Since the bracket is prevented from coming off from the pin thus set, the pin comes into contact with the cover when the rear gate chain is stored, so that the bracket can be prevented from coming off from the pin during running of the vehicle. In addition, the cover is hardly displaced by the stepped portion, and it is not necessary to use a special mounting method such as displacement prevention, so that an increase in cost can be suppressed without increasing the number of parts.

When the cover is configured to cover the portion where the chain portion and the bracket are connected, the soundproofing effect and the scratch preventing effect can also be improved, and the feel at the time of mounting can be improved. be able to.

If the cover is provided with a slit at an end of a portion covering a part of the hole, the bracket can be more easily detached from the pin.

The cover covers a part of the hole with an extension, and the extension is provided on only one side of the bracket. Desorption can be performed more easily.

[Brief description of the drawings]

FIG. 1 is a perspective view of a track to which a structure for preventing a rear gate chain from falling off according to the present invention is applied.

FIG. 2 is a perspective view partially showing a structure for preventing a rear gate chain from coming off according to an embodiment of the present invention.

FIG. 3 is a perspective view showing an attached state of the rear gate chain of FIG. 2;

FIG. 4 is an enlarged cross-sectional view taken along a section IV in FIG. 3;

FIG. 5 is a perspective view showing a state where the rear gate is held substantially horizontally using the rear gate chain of FIG. 2;

FIG. 6 is a perspective view showing a stored state of the rear gate chain of FIG. 2;

FIG. 7 is a cross-sectional view illustrating a method of storing the rear gate chain of FIG. 2;

FIG. 8 is a partially enlarged perspective view of a portion VIII in FIG. 6;

9 is a partially enlarged perspective view of a portion VIII in FIG. 6, showing a state of prevention of detachment.

FIG. 10 is a perspective view corresponding to FIG. 8 and showing a first modification of the structure for preventing the rear gate chain from coming off according to the present invention;

FIG. 11 is a perspective view, corresponding to FIG. 8, showing a second modification of the rear gate chain prevention structure of the present invention.

FIG. 12 is a perspective view partially showing a conventional structure for preventing a rear gate chain from coming off.

FIG. 13 is a plan view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rear gate chain 2 Chain part 21 The other end part 22 Stepping bolt 23 Connecting part 3 Bracket 31, 32 Bending point 33 Round hole 34 Stepping part 35 Deformation hole 36 Square hole 37 Hole 38 Groove 4, 6, 7 Vinyl cover 51, 52 pin 61 slit 71 extension 81 track 82 rear gate 83 side gate 84 carrier F tension

Claims (4)

[Claims] 1. A rear gate comprising a chain-shaped chain portion and a stepped bracket connected to one end of the chain portion, the rear gate being openably and closably provided at the rear end of the loading platform is connected to the side gate to make the rear gate substantially horizontal. A part of the hole provided from the stepped portion to the tip portion of the bracket is covered with a soft cover,
A structure for preventing the rear gate chain from coming off, wherein the bracket is prevented from coming off from the pin engaged with the hole. 2. The structure for preventing the rear gate chain from falling off according to claim 1, wherein the cover also covers a portion connecting the chain portion and the bracket. 3. The structure for preventing the rear gate chain from slipping off according to claim 1, wherein the cover has a slit at an end of a portion covering a part of the hole. 4. The apparatus according to claim 1, wherein the cover covers a part of the hole with an extension, and the extension is provided on one side of the bracket. 3. The structure for preventing the rear gate chain from falling off according to 2.