JP2002068024A - Device for supporting gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gate supporting device provided with a mechanism for pulling a stopper for supporting restrictingly a center pillar into a lower inner side of an under carriage not to be interfered with a side guard, and having simple, very strong and easily attachable structure. SOLUTION: This device has left and right gates 8, 8 pivoted to a body 5', the center pillar 1 equipped between the gates 8, 8, pivoted to the body 5, and connected releasably to the gates 8, 8, the stopper 2 pivoted to the center pillat 1 and supporting restrictingly the center pillar 1 under a closed condition; a lock mechanism 4 for locking the stopper 2 releasably to the body 5 when the center pillar 1 is supported restrictedly by the stopper 2; and a link mechanism 3 including the first arm 13 connected to the stopper 2 and turned by turn of the stopper 2, and the second arm 14 connected to the first arm 13, pivoted to the body 5 via a fixed shaft 17 and turned by the turn of the first arm 13, and functioned to pull the stopper 2 gradually toward the lower side of the body 5 when the center pillar 1 is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt supporting device, and more particularly, to a device for supporting a plurality of split jaws so as to be openable and closable. FIELD OF THE INVENTION The present invention relates to a lifting and supporting device, and more particularly to a side or rear lifting and lowering support device for a truck.

[0002]

2. Description of the Related Art The present applicant has disclosed in Japanese Patent Application Laid-Open No. 4-110281 (Japanese Patent No. 2805247) and Japanese Patent Application No.
No. 92910, in a truck having a plurality of swings for opening and closing a truck bed and a middle pillar installed between the plurality of swings, a stopper for supporting the middle pillar is provided.
We have proposed a tilting support device that has a mechanism to pull it into the lower inside of the vehicle body so as not to interfere with the side guard.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mechanism for retracting a stopper for supporting a middle column into a lower inside of a chassis so as not to interfere with a side guard, and to provide a simpler and more robust mechanism. An object of the present invention is to provide a tilt support device having a structure that can be easily mounted.

[0004]

SUMMARY OF THE INVENTION The present invention provides a plurality of swings pivotally supported on a vehicle body, and a plurality of swings provided between the plurality of swings and pivotally supported on the vehicle body. A middle pillar releasably connected to the middle pillar; a stopper pivotally supported by the middle pillar and supporting the closed middle pillar; and a stopper when the middle pillar is supported by the stopper. A lock mechanism for releasably locking the vehicle body, a first arm connected to the stopper and rotated by the rotation of the stopper, and a first arm that is linked to the first arm and that is linked to the first arm. A second arm pivotally supported by a fixed shaft and rotated by rotation of the first arm, wherein the stopper is gradually retracted toward the lower inside of the vehicle body when the center pillar is opened; Phosphorus that works Providing tilting support apparatus characterized by comprising: a mechanism.

[0005] In this tilt support apparatus, the link mechanism includes a plurality of arms linked to each other. Therefore, the length of each arm can be reduced as much as possible, and the rigidity of each arm can be increased.

In this tilt support device, the link mechanism includes a plurality of arms linked to each other. Thereby, the position of the pivot with respect to the vehicle body of the link mechanism and the position of the connection point with respect to the stopper,
Alternatively, the dimensional error relating to the length and the like of the plurality of arms is absorbed by the relative rotation of the plurality of arms linked to each other. For this reason, the allowable range of the dimensional error is expanded, so that the tilt support device is attached (assembled).
Becomes easier.

In this tilt support device, the link mechanism is connected to the vehicle body via a fixed shaft (a shaft that does not translate with respect to the vehicle body). Therefore, since it is not necessary to provide a mechanism for sliding the link mechanism on the vehicle body side, the structure of the entire tilting support device is simplified. Also, the link mechanism is connected to the vehicle body via a fixed shaft (a shaft that does not translate with respect to the vehicle body),
The stopper is prevented from rotating in the opposite direction (the direction opposite to the opening direction) from the supporting state (a state in which the upright supporting column is supported), and as a result, the inner column falls down. Is prevented.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described.

In a preferred embodiment of the present invention,
In the link mechanism, a pivot axis of the second arm (a pivot axis of the link mechanism) with respect to a straight line connecting the connection point between the stopper and the first arm and the connection point between the first arm and the second arm;
That is, the locking portion for preventing the relative rotation of the first arm with respect to the second arm in a predetermined direction is provided on the second arm so that the fixed shaft is always on the same side. According to this embodiment, the distance between the pivot of the second arm (the pivot of the link mechanism) and the connection point between the first arm and the stopper (the connection axis of the link mechanism and the stopper) during the opening operation of the center column. Is prevented from being shortened, and eventually, the components of the tilt support device such as the stopper and the hook are prevented from interfering with the vehicle body.

In a preferred embodiment of the present invention,
As a mechanism for locking the stopper to the vehicle body in the upright state, a shrimp type lock or another known lock device can be used. For example, JP-A-1-122781, JP-A-1-172076, JP-A-2-11480, JP-A-4-110, filed by the present applicant.
No. 281, Japanese Patent Application No. 11-92910, Japanese Patent Application 200
For example, a lock or a tightening device disclosed in Japanese Patent Application No. 0-14969 can be used. Note that a shrimp-type lock can also be used as a means for tightening the middle pillar and the tilt.

In a preferred embodiment of the present invention,
As the stopper locking device, a device in which a hook is disposed on the stopper side and a latch is disposed on the vehicle body side is used. Alternatively, a device having a latch on the stopper side and a hook on the vehicle body side can be used. In addition, it is preferable to dispose a lock device for the stopper inside the lower part of the vehicle body.
A locking device for the stopper may be arranged outside the vehicle body or on the side where the stopper is located.

According to a preferred embodiment of the present invention, in the link mechanism, the first arm and the second arm are connected to each other.
The link is made using another one or more arms.

The tilt supporting device of the present invention is usually installed between the front and rear (left and right) side tilts of the truck, but may be installed between the side tilt and the rear tilt which are orthogonal to each other in some cases. is there.

The tilt supporting device according to the present invention can be suitably used as a tilt supporting device for a truck.
It can also be suitably used as a support device for a plurality of members that are opened and closed in the same manner as the tilt.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the preferred embodiments of the present invention described above, an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a tilt support device according to an embodiment of the present invention. FIG. 2 is a side view of FIG.

Referring to FIG. 1 and FIG. 2, this tilt support device is provided on a side of a truck so as to open and close left and right tilts 8, 8 pivotally supported on a vehicle body 5 of the truck. It is. This tilt support device has a center post 1 provided between left and right side tilts 8 and 8 and supported on a gusset 6 fixed to a vehicle body 5 via a pin 10 of a hinge 9. ing. The pivots of the pin 10 and the left and right side shifts 8, 8 are located on the same straight line. In addition, the center pillar 1 and the left and right side tilts 8, 8 are releasably tightened by tightening means (for example, shrimp type lock) not shown. The operator can open and close (rotate) the center pillar 1 together with the left side tilt 8 or the right side tilt 8, or both side tilts 8, 8.

One end of a stopper 2 is connected to the outer surface of the center pillar 1 via a pin 12 of a hinge 11. Stopper 2
The abutment portion 2a near the pin 12 abuts on the plate 1a formed or attached on the outer surface of the middle pillar 1 to support the upright middle pillar (the middle pillar upright state is maintained). To support the center pillar). Further, the stopper 2
The center pillar 1 in the upright state is also supported via the pin 12.

One end of the link mechanism 3 is connected to the other end of the stopper 2 via a pin 15. The other end of the link mechanism 3 is connected to a gusset 6 via a pin 17 serving as a fixed shaft.
It is pivotally supported by a mounting plate 7 fixed to (fixed to the vehicle body 5).

Further, the link mechanism 3 will be described in detail. The link mechanism 3 includes a first arm 13
And the second arm 14. One end of the first arm 13 is connected to the other end of the stopper 2 via a pin 15. The other end of the first arm 13 is linked (connected) to the other end of the second arm 14 via a pin 16. One end of the second arm 14 is pivotally supported on the mounting plate 7 via a pin 17 (fixed shaft). In the vicinity of the pin 16, the second arm 14 is brought into contact with a contact portion 13 a (see FIG. 3) provided on the first arm 13 so that the second arm 14 A locking portion 14a is provided to prevent relative rotation of the motor 14 in a predetermined direction (one direction).

The locking portion 14a forms a straight line connecting the connecting point (pin 15) between the stopper 2 and the first arm 13 and the connecting point (pin 16) between the first arm 13 and the second arm 14. On the other hand, the pivot of the second arm 14 (pin 17,
The pivot of the linkage), ie the fixed axis, is always kept on the same side.

Next, the lock mechanism 4 for locking the stopper 2 in the upright state will be described. One end of a handle 18 is pivotally supported on the mounting plate 7 via a pin 19. Slot 18 in the middle of handle 18
a is formed. The first latch member 2 is connected to the handle 18 via a pin 22 that is displaceably fitted to the elongated hole 18a.
One end of 1a is connected. A pin 21c is pivotally supported at the other end of the first latch member 21a. This pin 21
The second latch member 21b is connected to the other end of the first latch member 21a via c. Second latch member 21
The bracket b is guided by the bracket 23 fixed to the gusset 6 so as to move up and down as the handle 18 is turned. A projection formed at a lower portion of the bracket 23;
A spring 19 supported through a pin 19 is compression-mounted between the handles 18. The spring 19 keeps the handle 18 open. The other end of the second latch member 21b is releasably engaged with a hook 24 integrated or fixed inside the stopper 2. In the locked state, the hook penetrates a window formed at a predetermined position of the vehicle body 5 and the gusset 6 and enters the lower inside of the vehicle body 5.

Further, below the side of the truck body 5,
A side guard 30 for preventing entanglement extends.

Next, the operation of the above-described tilt supporting device according to one embodiment of the present invention, particularly, the operation of fully opening the left and right tilts, in particular, the stopper does not interfere with the side guard, and The state of being drawn inward will be described.

FIG. 2 shows a state in which the center pillar 1 in the upright state is supported by the stopper 2. FIG.
Is an operation diagram of a main part of FIG. 2, showing a state where the center pillar 1 is rotated by about 90 degrees. FIG. 4 is an operation diagram following FIG. 3 and shows a state in which the center pillar 1 is suspended.

Referring to FIG. 1 and FIG. 2, first, the operator is required to tighten one of the right and left sides 8 (see FIG. 1) and a tightening means (not shown) for connecting the center column 1 to the side. The tightening means (not shown) connecting the swing 8 and the vehicle body 5 is released, and the swing 8 is rotated forward to open. Next, the operator releases the tightening means (not shown) connecting the remaining side swing 8 and the vehicle body 5 respectively.

In particular, with reference to FIG.
The handle 18 is rotated counterclockwise in FIG. 2 beyond the dead center. As a result, the second latch member 21b rises, and the engagement between the second latch member 21b and the hook 24 is released. Further, the handle 18 is actuated by the action of the spring 20.
The flipped-up state (a state hidden behind the mounting plate 7 shown in FIG. 2) is maintained. Similarly, spring 2
By the action of 0, the second latch member 21b maintains its raised position, that is, the state in which the hook 24 is allowed to enter the lower inside of the vehicle body 5 (floor frame). Next, the operator pivots the center pillar 1 and the remaining side swing 8 connected to each other forward.

Referring to FIG. 3, one end of the center post 1 is connected to the center post 1 via a pin 12 with the rotation of the center post 1,
The stopper 2 whose other end is connected to the link mechanism 3 (supported at a fixed point with respect to the vehicle body 5) via the pin 15 gradually rotates below the vehicle body 5 (floor frame) while rotating. It is drawn inward. Thereby, the stopper 2
A side guard 30 extending below the vehicle body (see FIG. 2)
) Can be prevented, and the center column 1 can be completely opened (the center column is rotated 180 degrees from the upright state).

Finally, referring to FIG. 4, when the center pillar 1 and the side flap 8 (see FIG. 1) connected to the center pillar 1 are rotated about 180 degrees, the stopper 2 is completely moved below the vehicle body 5. It is drawn inside. Thus, both the left and right side tilts 8, 8 and the center column 1 are rotated about 180 degrees, whereby one side of the undercarriage (packing bed) is completely opened.

When closing the left and right side shifts 8, 8 and the center pillar 1, the above-described opening operation may be performed in reverse. For example, when locking the center pillar 1,
Then, the stopper 18 may be locked by rotating the handle 18 in the flipped-up state clockwise in FIG.

In the link mechanism 3 (see FIG. 2) included in the above-described tilt supporting device according to one embodiment of the present invention, a plurality of arms 13 and 14 (FIG.
The length of each of the arms 13 and 14 is increased as much as possible.

Further, since the link mechanism 3 includes a plurality of arms linked to each other, dimensions or mounting errors relating to the relative positions of the pins 15, 16, 17 are linked to each other. The plurality of arms 13 and 14 are absorbed by relative rotation. For this reason, the allowable range of the dimensional error is expanded, and the mounting (assembly) of the tilt support device becomes easy.

In this tilt support device, the link mechanism 3 is connected to the vehicle body via a fixed shaft (pin 17 (see FIGS. 2 to 4)). This simplifies the entire structure of the tilting support device (especially, the structure on the vehicle body side), and moves the stopper from the supporting state (the state of supporting the upright center pillar) in the opposite direction (opening direction). (In the direction opposite to the opposite direction) is prevented, and after all, the inward fall of the center pillar is prevented.

[0034]

According to the present invention, a mechanism for pulling the stopper for supporting the center column into the lower inside of the chassis so as not to interfere with the side guard is provided, and a simpler, more robust, and easier-to-install structure. A tilt support device having:

[Brief description of the drawings]

FIG. 1 is a front view of a tilt support device according to an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is an operation view of a main part of FIG. 2, showing a state in which a center pillar is rotated by about 90 degrees.

FIG. 4 is an operation diagram following FIG. 3, showing a state where a center pillar is suspended.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Middle pillar 1a Plate 2 Stopper 2a Contact surface (contact surface with plate) 3 Link mechanism 4 Lock mechanism 5 Body 6 Gusset 7 Mounting plate (for link mechanism mounting) 8 Tilt (left and right tilt) 9 Hinge (Medium) 10 Pin (for connecting the middle pillar and the vehicle body) 11 Hinge (for connecting the stopper and the middle pillar) 12 Pin (for connecting the stopper and the middle pillar) 13 First arm 13a Contact portion ( Abutment portion with second arm) 14 second arm 14a locking portion 15 pin (for connecting stopper and first arm) 16 pin (for connecting first and second arms) 17 pin (for connecting 2 Arm and chassis connection, fixed shaft) 18 Handle 19 Pin (for steering wheel and chassis connection) 20 Spring 21a First latch member 21b Second latch member 21c Pin (for first and second latch members) For connection) 2 pin 23 bracket (for latch guide) 24 hook 30 side guard

Claims (2)

[Claims] 1. A plurality of swings pivotally supported on a vehicle body, and a plurality of swings provided between the plurality of swings and pivotally supported on the vehicle body and releasably connected to the plurality of swings. A column, a stopper pivotally supported by the center column and supporting the center column in a closed state, and when the center column is supported by the stopper,
A lock mechanism capable of releasably locking the stopper to the vehicle body, a first arm connected to the stopper and rotated by rotation of the stopper, and linked to the first arm. A second arm pivotally supported by the vehicle body via a fixed shaft with respect to the vehicle body and rotated by rotation of the first arm.
And a link mechanism that functions to gradually retract the stopper toward the lower inside of the vehicle body when the center pillar is opened. 2. A pivot axis of the second arm, that is, with respect to a straight line connecting a connecting point between the stopper and the first arm and a connecting point between the first arm and the second arm, So that the fixed shaft is always on the same side,
2. The tilting support device according to claim 1, wherein a locking portion for preventing relative rotation of the first arm with respect to the second arm in a predetermined direction is provided on the arm.