JP3095742B1 - Wing door locking device - Google Patents

Abstract

Kind Code: A1 A locking device that can be automatically locked and released by operating the opening and closing of a wing door, and that can be securely locked even after long-term use, and is manufactured or modified. To provide an easy and inexpensive wing door locking device. SOLUTION: A protruding member 21 provided near a lower end of a wing door 2, a locking portion main body 33 constituting an engaged portion with which the protruding member 21 is engaged, and the locking portion main body 33 is supported. And a support member 21 for engaging
Is supported by the support member 21 so as to be rotatable about a position distant from the carrier body 30, and the engaged portion is formed by a gap formed between the engaging portion main body 33 and the carrier body 30. Characterized in that:

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for locking a wing door of a truck so as to prevent the wing door from being opened.

[0002]

2. Description of the Related Art Conventionally, a locking device for a wing door has been configured to hook a locking projection provided on the wing door and maintain this state, and these operations are performed by manually operating a lever. Had been

However, in the above-described manual locking device, it is not possible to visually identify whether or not the locking can be performed when the wing door is closed, and after the wing door opening / closing device is operated, it is inadvertently operated. Sometimes I forgot. In other words, the wing door itself is very heavy, so it has a structure with a device that opens and closes using a hydraulic cylinder, motor, etc., but performs other work from the open state to the closed state At first glance, when I was there, I was illusioned that it was closed. Especially when you open and close frequently, such as for delivery.
While operating the locking device many times, it was sometimes assumed that the locking device was locked. The operation of these opening and closing devices is performed near the driver's seat, and the locking devices are provided in several places on the carrier, and the front of each locking device must be manually operated. And it was very complicated. For this reason, it was assumed that the wing door would not be opened if the vehicle was driven without vibration, and the vehicle was sometimes operated without being locked.

Further, the wing door is heavy and has only one or two positions, and may be slightly deformed by long-term use. In some cases, play occurred and a sufficient locking state could not be obtained. In order to solve the above-mentioned problem, the present applicant has disclosed Japanese Patent Application Laid-Open No. 10-272932.
The wing door locking device described in No. is developed.

[0005]

According to the present invention, as shown in FIG. 15 , a bulging portion 37 is provided outside a lower end 38 of the wing door 2 at a position to be locked.
On the other hand, an engaging portion main body 33 is installed on the truck body 30 of the truck, and the engaged portion 34 provided on the engaging portion body 33 engages with the bulging portion 37, whereby the cargo body 30 To lock the wing door 2.

However, in the locking device having the above structure, the bulging portion 37 and the engaged portion 34 to be engaged with the bulging portion 37 must be provided, so that precision processing is required. Compression spring 3 for urging stop body 33
Since the urging means such as 5 and the wire 36 for rotating the locking portion main body 33 for releasing the engagement are provided, it takes a long time for manufacturing or remodeling, resulting in an increase in cost.

In view of the above points, the present invention relates to a locking device which can automatically lock and release by operating the opening and closing of a wing door, and can reliably lock even after long-term use. It is an object of the present invention to provide a wing door locking device that is easy to manufacture or modify and that is inexpensive.

[0008]

According to the present invention, there is provided a wing door capable of opening and closing a truck body upwardly, and a projecting member provided near a lower end of the wing door, and an engaging member to which the projecting member is engaged. An engaging portion main body constituting a joint portion, and a supporting member for supporting the engaging portion main body, wherein the engaging portion main body is formed on a supporting member so as to be rotatable around a position distant from the carrier body. The engaging portion is supported by a gap formed between the locking portion main body and the carrier body, and the engaged portion is inserted into the gap, and One end is pressed to rotate the locking portion main body around the fulcrum of the support member, and the wing door is held by the protruding member between the loading body and the locking portion main body. To be locked to the body The gist of the locking device of the wing door for the butterflies.

[0009] Then, by forming the weight portion on the outer surface of the other end near the locking body, outside the fulcrum of always top the support member of the locking body is in the open time of the wing door It may be a locking device for the wing door that is located.

Further, by bending the other end of the locking body to the outside, becomes positioned outside the always fulcrum of top the support member of the locking body is in the open time of the wing door It may be a locking device for the wing door.

Further, by providing a biasing means between the locking portion main body and the support member, the upper portion of the locking portion main body is always outside the fulcrum of the support member when the wing door is opened. The wing door may be urged so as to be positioned at a position.

The projecting member is made of an elastically deformable material, and the projecting member is formed with a projection projecting outward. It may be a wing door locking device configured so that the main body can be pressed.

Further, the opening and closing movement of the wing door is performed by an extendable and retractable actuator provided inside the bed of the truck, and the expansion and contraction of the actuator causes the wing door to engage with the bed body. A locking device for a wing door which can perform locking and unlocking may be used.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment relates to a locking device of a wing door 2 for opening and closing a bed body of a truck 1 as shown in FIG.
The opening and closing mechanism will be briefly described. Wing door 2
Actuator 3 provided inside the bed of truck 1
And the drive arm 4 interlocked therewith. That is, one end 5 of the drive arm 4 is rotatably supported on a shaft, and the extendable portion 6 of the actuator 3 is connected to the vicinity 7 of the center of the drive arm 4. A driven member 9 is provided between the wing door 2 and the driven member 9 so that the driving force of the rotating drive arm 4 can be applied to the wing door 2.

Therefore, a locking device for closing the wing door 2 will be described. FIG. 2 shows a first embodiment of the locking device according to the present invention.
FIG. 3 is a sectional view taken along line AA of FIG. 2. As shown in FIGS. 2 and 3, a protruding member which is a front rectangular plate material having one end fixed to a lower end of a wing door 2 forming a cargo bed roof and a side surface and the other end protruding below a lower surface 2 a of the wing door. The rear surface 21 d of the projecting member 21 moves downward so as to slide on the upper surface 30 a of the carrier body 30. A support member 31 is provided on the surface of the carrier body 30 corresponding to the protruding member 21, and a rotation shaft 32 is attached to the support member 31. The locking portion main body 3 which is a rectangular front plate is provided on the shaft side surface of the rotating shaft 32.
The portion located below the center in the longitudinal direction of 3 is fixed, and the locking portion main body 33 is rotatably supported by the support member 31. In addition, the bottom surface 33 a of the lower end of the locking portion main body 33 is an inclined surface so as to contact the surface of the carrier main body 30.
The locking portion main body 33 rotates clockwise in FIG. 3, and is prevented from further rotating clockwise by contacting the surface of the carrier body 30.

Next, the operation of the first embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a view showing a state where the wing door is locked by the wing door locking device, and FIG. 5 is a view showing a state where the locking of the wing door is released. First, as shown by an arrow in FIG. 3, the wing door 2 is opened and closed by drawing an arc-shaped trajectory centered on a rotation axis installed at the center of the cargo roof (not shown). The opening angle of the locking portion main body 33 is adjusted so that the locking portion main body 33 does not contact the protruding member 21 provided at the lower end of the wing door 2 when the moving portion 2 is moving on an arc-shaped orbit. It is adjusted by the inclination angle of the bottom surface 33a abutting on the surface. Then, when the protruding member 21 of the wing door 2 comes into contact with the upper end surface of the carrier body 30, the movement of the wing door 2 drawing an arc-shaped orbit stops. Then, as shown by an arrow in FIG.
1d falls downward while sliding on the upper surface of the carrier body 30, and the lower end surface 2a of the wing door 2 comes into contact with the upper end surface 30b of the carrier body 30 and stops. At this time, the locking body 33
When the lower portion of the locking portion main body 33 is pressed against the lower end of the protruding member 21 from the open state shown in FIG. The projecting member 2 is inserted into an engagement groove formed between the carrier body 30 and the locking body 33 at substantially the same interval as the thickness of the member 21.
1 is accommodated, and the surface of the locking portion main body 33 is rotated until the surface of the locking portion main body 33 becomes parallel to the surface of the carrier body 30, so that the back surface of the locking portion main body 33 comes into contact with the surface of the protruding member 21. Therefore, when the wing door 2 shown in FIG. 4 is locked, the protruding member 21 is
3 and the locking portion main body 33 is also fixed and cannot be rotated.

When the wing door 2 is unlocked, the above operation is reversed. That is, first, the projecting member 21 of the wing door 2 moves vertically upward with respect to the ground contact surface of the truck. Then, the fixing of the locking portion main body 33 is released, and the locking portion main body 33 rotates clockwise in the drawing, and is opened until the bottom surface 33 a of the locking portion main body 33 comes into contact with the surface of the carrier body 30. Then, the wing door 2 moves in the direction of the arrow shown in FIG. That is, it is opened so as to draw an arc-shaped trajectory about the rotation axis installed at the center of the bed roof.

Next, second to fourth embodiments of the present invention will be described. 6 to 8 are sectional views showing other embodiments of the locking device according to the present invention. First, FIG. 6 shows a state in which a hemispherical member 33c is fixed to the upper side surface of the locking portion main body 33. Thereby, if the protruding member 21 moves vertically upward with respect to the ground contact surface of the truck when the wing door 2 is opened, the locking portion main body 33 does not maintain the balance, and thus rotates clockwise in FIG. Will be opened as shown in FIG. Although similar to this, the same effect as the configuration in FIG. 6 can be obtained by forming a bent portion 33d in which the upper end of the locking portion main body 33 is bent outward as shown in FIG. be able to. Further, as shown in FIG. 8, a configuration may be adopted in which a biasing means (tensile spring) is provided between the center of the locking portion main body 33 and the support member 31. Accordingly, when the protruding member 21 moves vertically upward with respect to the ground contact surface of the truck, the locking portion main body 33 is always urged to open, so that the left wheel of the truck is larger than the right wheel. Even when the vehicle is stopped on a road surface where the height is lowered, the locking portion main body 33 can be prevented from rotating counterclockwise and abutting against the carrier main body 30.

Next, a fifth embodiment of the present invention will be described. FIG. 9 is a sectional view showing a fifth embodiment of the locking device, and FIG. 10 is a perspective view. 9 and 10
As shown in (1), a configuration may be adopted in which a concave portion 30c is provided in the carrier body 30. The projecting member 21 is inclined between the wing door mounting portion 21a and the engaging portion 21c so as to fit into the concave portion 30c when locked by the locking portion main body 33.
Is provided. With this configuration, when the wing door 2 is closed, nothing protrudes outside the outer surfaces of the wing door 2 and the bed body 30, and the appearance can be improved.

Further, in a sixth embodiment of the present invention, as shown in FIG.
It may be installed so that its surface is not parallel to the surface of the wing door 2. In this case, as shown in FIGS. 12 to 14, the protruding member 21 has an inclined surface 21e inclined inward and an inclined surface 21f inclined inward, so that a boundary 21g between the inclined surfaces 21e and 21f is the most. projections projecting outward Ru is formed. In this case, the tip of the protruding member 21 presses the lower part of the locking portion main body 33, and this locking portion main body 33
Is rotated counterclockwise about the rotation shaft 32 of the support member 31, and the back surface of the locking portion main body 33 contacts the boundary 21 g of the protruding member 21. In this state, the protruding member 21 is sandwiched between the surface of the carrier body 30 and the locking portion main body 33. Even when the width in the width direction of the gap formed with the back surface is shorter than the length h in the cross-sectional direction of the protruding member 21, it can be inserted, and after the insertion, the loading platform can be restored by the restoring force. Since the wing door 2 is securely held between the front surface of the main body 30 and the back surface of the locking portion main body 33, it is possible to prevent rattling of the wing door 2.

It goes without saying that various embodiments can be adopted without departing from the spirit of the present invention. For example, a mechanism for opening and closing the wing door 2 may be a mechanism that directly opens and closes the wing door 2 by a powerful actuator 3 in addition to the above link type.
Even in this case, since the direction in which the weight of the wing door 2 acts is the same, the configuration can be the same.

[0022]

As described above, the present invention relates to a wing door capable of opening and closing a truck body upward and downward, a projecting member provided near the lower end of the wing door, and a member to which the projecting member is engaged. A locking member body that forms an engaging portion, and a supporting member for supporting the locking portion main body, wherein the locking member body is rotatable about a position distant from the carrier body as a fulcrum. And the engaged portion comprises a gap formed between the locking portion main body and the carrier body, wherein the projecting member is inserted into the gap and the locking portion main body is inserted. Is pressed to rotate the locking portion main body around the fulcrum of the support member, and the protruding member is sandwiched between the carrier body and the locking portion main body, whereby the wing door is moved. To be locked to the carrier body. Since the wing door locking device is a gist, the wing door can be locked with a simple structure, so that the cost is lower than that of the conventional locking device, and the locking device member is installed inside the cargo bed. Does not protrude, so that the space inside the carrier can be effectively used.

[0023] Then, by forming the weight portion on the outer surface of the other end near the locking body, outside the fulcrum of always top the support member of the locking body is in the open time of the wing door Since the locking device for the wing door that is positioned may be used, it is possible to always keep the locking portion main body opened outward when the wing door is opened.

Further, by bending the other end of the locking body to the outside, becomes positioned outside the always fulcrum of top the support member of the locking body is in the open time of the wing door Since the locking device of the wing door may be used, it is possible to always keep the locking portion main body open outward when the wing door is opened, similarly to the configuration in which the weight portion is formed.

Further, by providing an urging means between the locking portion main body and the support member, the upper portion of the locking portion main body is always outside the fulcrum of the support member when the wing door is opened. It is also possible to use a locking device for the wing door that is urged to be located at a position such that the locking portion main body is always opened outward when the wing door is open even when the vehicle is stopped on a road surface that is inclined in the left-right direction. Can be maintained.

The projecting member is made of an elastically deformable material, and the projecting member is formed with a projecting portion projecting outward. Since the wing door locking device may be configured so that the main body can be pressed, even if the thickness width of the protruding member is smaller than the gap formed between the locking portion main body and the carrier body. The protruding member can be inserted, and after the insertion, the restoring force ensures that the wing door is securely held and locked between the front surface of the carrier body and the back surface of the locking portion main body. Tattering can be prevented.

Further, the opening and closing movement of the wing door is performed by an extendable and retractable actuator provided inside the bed of the truck, and the extension and contraction of the actuator causes the wing door to engage with the bed body. It is also possible to use a wing door locking device that can perform locking and unlocking, so that the wing door can be opened and closed by the expansion and contraction operation of the actuator, and the locking and unlocking of the wing door and the cargo bed body can be performed simultaneously. Since no additional work is required, there is no need to forget to lock as in a conventional locking device.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an opening / closing mechanism of a wing door.

FIG. 2 is a perspective view showing a first embodiment of the locking device according to the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a diagram showing a state in which a wing door is locked.

FIG. 5 is a view showing a state in which the locking of the wing door is released.

FIG. 6 is a cross-sectional view showing a second embodiment of the locking device according to the present invention.

FIG. 7 is a sectional view showing a third embodiment of the locking device according to the present invention.

FIG. 8 is a sectional view showing a fourth embodiment of the locking device according to the present invention.

FIG. 9 is a sectional view showing a fifth embodiment of the locking device according to the present invention.

FIG. 10 is a perspective view showing a fifth embodiment of the locking device according to the present invention.

FIG. 11 is a perspective view showing a sixth embodiment of the locking device according to the present invention.

FIG. 12 is a sectional view taken along line BB of FIG. 11;

FIG. 13 is a sectional view showing a state where a wing door is locked in a sixth embodiment of the locking device according to the present invention.

FIG. 14 is a sectional view showing a state in which the locking of the wing door is released in the sixth embodiment of the locking device according to the present invention.

FIG. 15 is a sectional view showing a conventional wing door locking device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Track 2 Wing door 3 Actuator 4 Drive arm 6 Extendable part 9 Follower member 21 Projecting member 21a Wing door attaching part 21b Inclined part 21c Engaging part 31 Supporting member 30 Main body 32 Rotating shaft 33 Locking part main body

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B62D 33/04 B60J 5 / 04,7 / 08

Claims (6)

(57) [Claims] 1. A wing door capable of opening and closing a cargo bed body of a truck in an upward direction, wherein a projecting member provided near a lower end of the wing door, and an engaging portion forming an engaged portion with which the projecting member is engaged. A main body, and a support member for supporting the main body of the locking portion. The main body of the locking portion is supported by the supporting member so as to be rotatable about a position distant from the carrier body, and The engaging portion is formed by a gap formed between the locking portion main body and the carrier body. The protruding member is inserted into the gap, and one end of the locking portion main body is pressed to perform the locking. The main body is rotated around the fulcrum of the support member, and the wing door is locked to the carrier body by the protruding member being clamped between the carrier body and the locking body. Characteristic wing door locking apparatus. 2. By forming the weight portion on the outer surface of the other end near the locking body, outside the fulcrum of always top the support member of the locking body is in the open time of the wing door The locking device for a wing door according to claim 1, wherein the locking device is positioned. 3. By bending the other end of the locking body to the outside, becomes positioned outside the always fulcrum of top the support member of the locking body is in the open time of the wing door The locking device for a wing door according to claim 1. 4. An urging means is provided between the locking portion main body and the support member so that the upper portion of the locking portion main body is always outside the fulcrum of the support member when the wing door is opened. 2. The wing door locking device according to claim 1, wherein the wing door is urged to be located at a position. 5. The projecting member is made of an elastically deformable material, and the projecting member is formed with a projecting portion projecting outward, and the projecting portion is pressed by the locking portion main body. 5. The method according to claim 1, which is configured to be able to perform
Zureka wing door locking device according to item 1. 6. The opening / closing operation of the wing door is performed by an extendable and retractable actuator provided inside a truck bed, and the wing door is engaged with the cargo bed body by extending and contracting the actuator. The locking device for a wing door according to any one of claims 1 to 5 , wherein the locking device can perform locking and unlocking.