JPH10236214A - Tail gate storage structure also used for rear door of van type truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tail gate storage structure in which a tail gate is capable of surely closing a portal part of a rear part of a loading platform to prevent ingress of rain, dust, etc., and the tail gate can also be used as a rear door even when the tail gate is in the stored condition by a vertical cargo-handling and elevating/lowering device. SOLUTION: A portal part 2 is fixed to a rear part of a loading platform of a van-type truck, a slider 3 is slidably fitted to the portal part 2, a tail gate 5 is turnably fitted to the slider 3, the tail gate 5 is elevated/lowered in a vertical direction, a tapered packing 7 is fitted to the portal part 2, a tapered bar 8 is fitted to the tail gate 5, the tail gate 5 is set in a vertical state, and the packing 7 and the bar 8 are opposite to each other and closely attached to each other in a wedged manner when the tail gate is hydraulically elevated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage structure for a tailgate that also serves as a door for a van type truck.

[0002]

2. Description of the Related Art A van-type truck is a typical example of a vehicle for carrying luggage. This van-type truck has a box-type bed, but the back of this bed is the floor of the bed (up position).
2. Description of the Related Art There are many vehicles equipped with a device for raising and lowering luggage between the ground and the vicinity of the ground (at a lower position), that is, a loading / unloading device for raising and lowering a so-called tail gate.

[0003] This loading and unloading device is roughly classified into a vertical type (Fig. 7 (A)) and an arm type (Fig. 7 (B)) according to the type of mechanism for raising and lowering the tailgate. Most power sources are electro-hydraulic. First of all, the vertical loading and unloading device
As shown in FIG. 8 (A), the tailgate 5 is connected to the tailgate 5 via a wire (not shown) along the gate structure 2 at the rear of the body of the loading platform.
Is vertically moved (shown by V) between the upper position and the lower position. This lifting device only applies vertical movement to the tailgate during lifting and does not apply a lateral force, so that the loaded luggage has high stability and is optimal for loading and unloading luggage with a high center of gravity.

As shown in FIG. 8 (B), the arm type loading / unloading device supports the tail gate 5 with an arm 9 combined with a link mechanism extending from both ends of the body, and drives the arm 9 by hydraulic pressure to move the tail. This is a mechanism in which the gate 5 is raised and lowered in an arc shape (indicated by C) between an upper position and a lower position. This loading and unloading device has the advantage that it is easy to install and relatively inexpensive, but because the tailgate 5 moves up and down while drawing an arc, lateral force is applied and the stability is poor compared to the vertical type. Due to the drawbacks, it is limited to lifting and lowering luggage with a low center of gravity and good stability.

[0005] Therefore, the vertical type and the arm type are selected and used in consideration of the characteristics of the devices and the purpose such as the type of luggage to be handled.

[0006]

During loading and unloading work, the tailgate is used while extending horizontally out of the vehicle. When the work is completed, the tailgate needs to be stored in the vehicle. In the retracted state, the tailgate 5 that has been raised to the upper position is turned vertically by 90 ° (indicated by T in FIGS. 8A and 8B), and the luggage loading surface of the tailgate 5 is moved to the rear door. It is common to fix it so that it sticks to it. The tailgate 5 is developed so as to be attached to the rear door, and there are many cases where the tailgate 5 is also used as the rear door. This case is implemented in the case of an arm-type loading / unloading device.

That is, in the arm-type loading / unloading device, when the tailgate is moved from the lifting / lowering operation state (horizontal state) to the storage state (vertical state), the arm is further driven by the hydraulic pressure. The tailgate can be set vertically by turning it 90 °, but after turning, the tailgate is pressed against the rear of the body by the arm and is fixed in close contact, so that the tailgate fully functions as a door. Can be.

[0008] On the other hand, in the case of the vertical type lifting / lowering device, such operation is not performed. That is, this lifting device is structurally
There is no lateral movement function, that is, a function of rotating the tailgate or pressing the tailgate toward the gate structure only by giving the tailgate a vertical movement. Therefore, in the vertical type, as shown in FIG. 9 (A), the tail gate which has been raised to the upper position is manually rotated by 90 ° and set vertically.
Further, as shown in FIG. 9 (B), the fixing pistol pin 5B on the side of the tailgate 5 is inserted into the fixing pin hole 4C of the bracket 4 of the slider 3 to which the base of the tailgate 5 is attached, and the tailgate 5 is vertically moved. Must be fixed in state.

However, in this method, the fixing pin hole 4C
The gap between the gate structure and the tailgate is generated due to the position error of the above and the play between the fixing pin hole 4C and the fixing pistol pin 5B, and it is difficult to completely close and close and fix. . Therefore, the tailgate to which the vertical loading / unloading device is attached cannot be used as the rear door.

In view of this, the applicant of the present application has studied a method in which the tailgate is closely attached so as to prevent the above-mentioned play and gap, and the tailgate is also used as a rear door. However, an elastic packing material is eventually used. Was the most reasonable. The first attempt was to attach a packing material with a thickness to cover backlash and gaps to the gate structure side, place the tail gate in the working state (horizontal direction) in the upper position, and manually turn it 90 °. Then, the tail gate is pushed vertically, and the tail gate is further pushed in to make close contact with the packing material. However, depending on the manual method, it is necessary to prevent rain and dust from entering the packing material due to lack of force and positional relationship (the hand does not reach the upper part of the rotated tailgate). It has been found that it is very difficult to bite the tailgate into the packing material and fix it so as to cause bending.

Next, it was considered that after using the packing material as described above, the tail gate in the working state (horizontal direction) is temporarily lowered to the lower position, and then manually rotated by 90 ° to rotate vertically. Then, the tailgate is fixed with a fixing pin, and then the tailgate is lifted while pushing the packing material by hydraulic pressure, so that the tailgate is completely adhered. However, according to this method, when the tailgate is moved up and down, the tailgate is forcibly moved up and down while biting into the packing material.
Not only did the tailgate move badly due to strong friction, but also the packing material was eventually damaged, which proved to be impractical and not a solution to the problem.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a storage structure of a tailgate that also serves as a rear door of a van-type truck according to the present invention is provided by fixing a gate structure to a rear portion of a bed of a van-type truck. A slider is slidably fitted to the gate structure, a tailgate is rotatably attached to the slider, and the tailgate is configured to rise and lower in a vertical direction. Attachment, further attached an inclined rod-shaped material to the tailgate, when the tailgate is set vertically and raised by hydraulic pressure, the packing material and the rod-shaped material are configured to come into close contact with each other in a wedge shape. is there.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tailgate storage structure which also serves as a rear door of a van type truck according to the present invention will be described. As shown in FIG. 1, a gate structure 2 is integrally fixed to the rear part of the loading body 1 by welding, and a vertical slit 2A communicating with the internal space is opened at the lower part on both sides of the gate structure. Then, as shown in FIG. 2, the slider 3 is fitted to the slit 2A so as to be slidable in the vertical direction.

The slider 3 is formed in a concave shape as a whole. As shown in FIG. 3, both ends of the slider 3 have a sliding portion 3A having an H-shaped cross section to be fitted into the slit 2A, and a bracket 4 is fixed to both ends. , This bracket has a pin hole 4 for rotation.
The tailgate 4 can be rotated between the horizontal direction and the vertical direction on the slider 3 by fitting the rotation pin portions 5A provided on both ends of the base of the tailgate 5 into the pin holes 4A. Attach as is.

The bracket 4 is provided with a stopper 4B for supporting the tailgate 5 from below. Further, in order to fix the tailgate 4 in a vertical state, a fixing pistol pin 5B is provided on both sides of the tailgate 5, and a fixing pin hole 4C is provided in the bracket 4. Reference numeral 6 denotes a hydraulically operated wire which is connected to the sliding portion 3A of the slider 3.

By operating a control switch (not shown), the tailgate 5 is moved up and down as the slider 3 is moved up and down along the slits 2A on both sides of the gate structure 2 via the wire 6 by hydraulic pressure. ing. Next, as shown in FIG. 4, a resilient rod-shaped square packing having a thick upper portion and a thin lower portion is provided on both surfaces sandwiching the front opening portion of the gate structure portion 2 so as to vary in thickness. The material 7 is glued in the vertical direction, and elastic packing material 7A is attached to the upper and lower surfaces sandwiching the front opening of the gate structure 2 in the horizontal direction (in the figure, the opening of the gate structure 2). The hatched part surrounding the square packing member 7 is an adhesive portion between the square packing material 7 and the packing material 7A). An eave 2 'is provided on the upper part of the gate structure 2, and the lower surface of the eave 2' is adhered to the packing material 7A as required.

On the other hand, as shown in FIG. 5, the tailgate 5 has a thinner upper side and a thicker lower side on both sides of the luggage loading surface 5 'in the storage state (vertical state) of the tailgate 5 on both sides. Attach the rod-shaped square member 8 inclined so that its thickness changes. Note that a square packing material 7 may be attached to the tailgate 5 side, and a rod-shaped square material 8 may be attached to the gate structure 2 side.

Next, the procedure for storing the tailgate 5 will be described. First, the tailgate 5 set horizontally in the working state is lowered to the lower position. Next, as shown in FIG. 6 (A), the tail gate 5 is manually rotated by 90 ° and set in a vertical state. Next, the fixing pistol pins 5B on both sides of the tailgate 5 are inserted into the fixing pin holes 4C of the bracket 4 attached to the slider 3, and the tailgate 3 is fixed in the vertical direction.

Then, the control switch is operated,
The tailgate 5 is raised via the slider 3 by operating the wire 6 with hydraulic pressure, and is brought into the retracted state as shown in FIG. 6 (B). When the tailgate 5 is raised to the upper position, the rectangular packing material 7 on the gate structure 2 side and the rectangular material 8 on the tailgate 5 side are inclined so that the thickness changes, so that they do not rub against each other. However, when the tailgate 5 is raised to the upper position to be in the retracted state (the upper end of the tailgate 5 is
At this point, the rectangular packing material 7 and the rectangular material 8 are surely adhered to each other in a wedge-like manner with respect to the packing material 7 and the packing material 8 where the packing material 7A comes into close contact with the packing material 7A on the upper part of the gate structure 2). At the same time, the packing material 7A at the lower surface of the luggage loading surface 5 'of the tailgate 5 and the lower part of the gate structure 2.
Will adhere. In this way, the opening of the gate structure 2 is closed and closed on all sides. In addition, in order to enhance the air (water) tightness of the lower part, the end of the surface of the load loading surface 5 'of the tailgate 5 (the portion that contacts the packing material 7A at the lower part of the gate structure 2) is a hindrance for taking in and out of the load. It is also possible to provide a gentle mountain-like swell in the horizontal direction with a vertical cross section that does not become uneven.

[0020]

According to the present invention, the rear structure of the tailgate that also serves as the rear door of the van-type truck is provided with the gate structure fixed to the rear part of the bed of the van-type truck, and the slider is slidably fitted to the gate structure. Then, the tailgate is rotatably mounted on the slider, the tailgate is vertically moved up and down, and the inclined packing material is mounted on the gate structure, and the tilted bar is mounted on the tailgate. When the tailgate is set vertically and raised by hydraulic pressure, the packing material and the rod-shaped material are configured so as to be surely brought into close contact with each other in a wedge shape, so that the tailgate is stored by the vertical loading / unloading device. Even in the state, the tailgate securely closes the gate structure of the loading body, prevents intrusion of rain, dust, and the like, and allows the tailgate to be used also as a rear door.

Further, the packing material and the rod-shaped material whose opposing surfaces are inclined do not rub against each other during the lifting and lowering of the tailgate, so that the lifting and lowering movement of the tailgate is hindered, and the packing material and the rod-shaped material are worn or damaged. There is nothing to do.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a state in which a gate structure is fixed to a bed body.

FIG. 2 is an explanatory view showing a state where a slider is fitted to a gate structure.

FIG. 3 is an explanatory diagram showing how to combine a gate structure, a slider, and a tailgate.

FIG. 4 is an explanatory view showing a packing material adhered to a gate structure.

FIG. 5 is an explanatory view showing a state where a packing material is adhered to a gate structure and a square material is adhered to a tailgate.

FIG. 6A is an explanatory view showing a state in which a tail gate is vertically rotated at a lower position. (B) It is explanatory drawing which shows the storage state which raised the tailgate.

FIG. 7A is an explanatory view showing a vertical loading / unloading device. (B) It is explanatory drawing which shows an arm type loading / unloading apparatus.

FIG. 8A is an explanatory view showing the movement of a tailgate by a vertical loading / unloading device. (B) It is explanatory drawing which shows the movement of the tail gate by the arm type loading / unloading device.

FIG. 9A is an explanatory view showing a state in which the tailgate is raised to an upper position. (B) It is explanatory drawing which shows the storage state which rotated and fixed the tailgate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Loading body 2 Gate structure 2A Slit 3 Slider 3A Sliding part 4 Bracket 4A Rotating pin hole 4B Stopper 4C Fixing pin hole 5
Tailgate 5 'Luggage loading surface 5A Rotating pin 5B Pistol pin for fixing 6 Wire 7 Square packing material 7A Packing material 8 Square material 9 Arm

Claims (1)

[Claims] A gate structure is fixedly provided at a rear portion of a loading platform of a van type truck, a slider is slidably fitted to the gate structure, and a tailgate is rotatably attached to the slider. When vertically rising and falling, the inclined packing material is attached to the gate structure, and the inclined rod-shaped material is attached to the tail gate, and the tail gate is set in the vertical state, and the tail gate is raised by hydraulic pressure. A storage structure for a tailgate also serving as a rear door of a van-type truck, wherein the packing material and the rod-shaped material are configured to closely contact each other in a wedge shape.