JP2600078Y2 - Locking device for lower edge of wing of van body truck - Google Patents

Description

[Detailed description of the invention]

[0001]

This invention relates to a so-called wing-shaped van body truck having a structure in which a side wall of a carrier body of a truck is pivoted upward together with a part of a roof and opened, particularly a central portion thereof. A device for locking in a closed position.

[0002]

2. Description of the Related Art A wing-type van body truck has a structure in which a side wall of a carrier body is pivoted upward together with a part of a roof thereof to open, and a portion where the body is opened and closed is called a wing. In the normal structure, a tilt is pivotally attached to the side edge of the loading floor, and the entire side surface of the loading body is opened by opening the tilt and the wing, and when closed, the upper edge of the tilt and the lower edge of the wing face each other. Position. In the closed state, the left and right ends of the tilt are locked to the columns erected at the four corners of the loading platform, and the wing is locked at the left and right ends to the columns in the same manner as the tilt, or in the closed state by the opening and closing drive of the wing. Fixed. Since the wing opening / closing drive device is provided at the front end and the rear end of the carrier so as not to interfere with the loading / unloading work, the holding of the wing closed by the opening / closing device is performed in the same manner as when the wing is locked to a pillar. Will be performed at the left and right ends.

Since the wing is made of a relatively thin plate having a large area and needs to be made as light as possible due to the nature of a vehicle, it is relatively easily bent by an external force.
In particular, the center of the lower edge of the wing is located farthest from the wing pivots, the pillars at the four corners of the wing, and the wing opening / closing device. And the roll of the load cannot be sufficiently suppressed, and an increase in the vehicle width may cause an unexpected accident during traveling.

[0004]

[Problems to be solved by the invention] To avoid such a problem, make sure that the lower edge of the wing has sufficient rigidity.
Alternatively, it is necessary to adopt a structure in which the central part of the lower edge of the wing is locked and fixed to the upper edge of the tilting plate, but the former causes an increase in the weight of the wing, and therefore has the disadvantage that the opening / closing device becomes large. In the latter case, when the wing is closed, the lower edge of the wing must be locked with the upper edge of the tilt plate.The mechanism that engages and disengages using a hydraulic or electric motor has a mechanism. The structure becomes complicated, and when the structure is manually disengaged, the driver must move to the center of the carrier every time the wing is opened and closed to disengage the lock device.

Therefore, the present invention prevents the lateral deformation of the wing by automatically locking the lower edge of the wing to the upper edge of the tilting plate or the side edge of the cargo bed when the wing is closed. Another object of the present invention is to provide a locking device for a lower edge of a wing having a structure in which a locked state is automatically released when the wing is opened, thereby solving the above problem.

[0006]

In the present invention, the wing protrudes from the lower edge of the wing by its own weight, and when it is pushed in by an external force, its swing is fixed.
1, a lock piece 4 is provided which is held in a state of being swung obliquely toward the inside of the wing, and the lock piece 4 is attached to a member for fixing the upper edge of the tilt 14 or the lower edge of the wing, such as the bed floor. A vertical locking hole 15 to be inserted, a bottom surface 16 for pushing the locking piece 4, and a contact with the tip of the locking piece 4 when the wing enters the closed position, the locking piece 4 is pressed against the urging force of the spring 11. There is provided a guide piece 17 for swinging in opposition.

The lock piece 4 is mounted on the lower edge of the wing 1 so as to be vertically movable and swingable at a predetermined stroke, and projects from the lower edge of the wing even when it is pushed in. In the above, the base end of the lock piece 4 is restrained by the fixing member 9 on the wing side, so that the lock piece 4 is mounted so as not to swing. On the other hand, when the lock piece protrudes, the restraint of the base end of the lock piece 4 by the fixing member 9 is released, and the lock piece 4 is urged around the support pin 3 by the spring 11 so that the tip of the lock piece 4 is Is turned obliquely toward the inside of.

[0008]

When the wing 1 is in the open state, the lock piece 4
Is in a protruding position, and extends in a direction obliquely inclined toward the inside of the carrier by the spring 11. When the wing is closed in this state, the tip of the lock piece 4 first comes into contact with the guide piece 17 and is forcibly erected by the guide piece 17. The tip of the lock piece 4 is guided to the lock hole 15. Lock piece 4
When the lock piece 4 is inserted into the lock hole 15 to some extent, the lock piece 4 comes into contact with the bottom surface 16 and the lock piece 4 is prevented from entering the lock hole 15, so that the lock piece 4 rotates in the upright direction. In the last stage of the operation, the wing 1 is pushed into the wing 1, and when the wing 1 is closed, the base end of the lock piece 4 is restrained by the fixing member 2 on the wing side, and the rocking piece 4 is prevented from swinging.

In this state, when a lateral external force is applied to the wing 1 to attempt to deflect the wing 1 in the lateral direction, the tip of the lock piece 4 in the restrained state and the lock hole 1
The movement of the wing 1 in the lateral direction is restricted by the fitting with the wing 5.

On the other hand, when trying to open the wing,
The wing 1 is driven in the opening direction by a wing opening / closing device (not shown). However, since the wing 1 is formed of a relatively thin plate having a large area, an upward force is applied to the wing 1 in the opening direction. Then, the lower edge of the wing 1 moves upward by the amount of the bending, and then performs an operation of rotating around the pivot 18. When the lower edge of the wing 1 first moves upward by the amount of the deflection, the lock piece 4 relatively projects to loosen the restraint of its base end, and then the lower edge of the wing 1 turns obliquely upward. As a result, the tip of the lock piece 4 rotates while moving forward and separates from the lock hole 15. After the lock piece 4 separates, the inclined state is held by the spring 11 and the wing 1 is opened.

In the locking mechanism of the present invention, since the wing 1 includes a part of the roof of the body at its upper part, the movement of the lower edge of the wing when opening and closing the wing is not in the horizontal direction but in the oblique vertical direction. In addition, since the supporting force applied to the wing from the wing opening / closing mechanism acts on the upper portion of the wing, the lower edge of the wing is provided at the end of closing the wing and at the beginning of opening the wing due to bending deflection of the wing 1 due to its own weight. Using the fact that it moves up and down slightly,
The wing can be opened and closed without a special disengagement operation, and the lower edge of the wing 1 is prevented from laterally biasing when the wing is in the closed state.

[0012]

Next, an embodiment shown in the drawings will be described. A bracket 2 is fixed to the lower edge of the wing 1 at the longitudinal center or at an interval as required. A support pin 3 parallel to the pivot 18 of the wing is fixed to the bracket 2. A lock piece 4 is supported on the lock 3 so as to be vertically movable and swingable. The lock piece 4 protrudes further below the lower end of the seal material 5 through the side of the seal material 5 mounted on the lower edge of the wing 1 and has a slightly arcuately bent side shape.

A guide member 6 is fixed to the lock piece 4, and the support pin 3 is inserted into an elongated hole 7 formed between the guide member 6 and the lock piece 4, whereby the lock piece 4 is fixed. Supported in a manner. The tip of the lock piece 4 is provided so as to protrude downward from the lower edge of the wing 1 even when the lock piece 4 is pushed in, and its base end extends further above the position where the guide member 6 is provided. ing.

On the other hand, the bracket 2 has an inclined portion 8 which is inclined above the upper portion so as to become narrower in the thickness direction of the wing 1, and the plate surface of the wing 1 is provided above the inclined portion. A parallel restraining portion 9 is formed. The base end 10 of the lock piece 4 reaches the position of the restraining part 9 when pushed in, and the vertical stroke is regulated by the elongated hole 7 so as to be located at the lower end of the inclined part 8 when it is projected. The base end of the lock piece 4 is urged toward the restricting portion 9 and the inclined portion 8 by the urging force of the spring 11. The spring 11 urges the lock piece 4 via the roller 12 in order to ensure smooth vertical movement of the lock piece 4.

A lock hole 15 is provided at the upper end of the tilt 14 for locking the lower edge of the wing 1 at a position corresponding to the projecting position of the tip of the lock piece 4. It has a bottom surface 16 for pushing in, and a wall inside the vehicle of the lock hole 15 extends upward to form a guide piece 17.

FIG. 2 shows a state immediately before the wing 1 is closed. In this state, the lock piece 4 projects downward by its own weight, and the base end of the lock piece 4 extends to the lower end of the inclined portion 8. The lock member 4 descends and is pressed against the lower end of the inclined portion 8 by the urging force of the spring 11, so that the tip of the lock piece 4 is held in a state of being inclined toward the inside of the vehicle.

When the wing 1 moves obliquely downward from this state, the tip of the lock piece 4 first comes into contact with the guide piece 17 and the lock piece 4 is turned in a direction to stand up against the urging force of the spring 11. . When the lock piece 4 rotates in the upright direction, the amount of downward projection of the tip of the lock piece 4 increases. When the lock piece 4 rotates in the upright direction, the base end 10 of the lock piece is separated from the lower end of the inclined portion 8, and the lock piece 4 can move upward. The lock piece 4 is inserted into the lock hole 15 with the closing operation of the wing 1 in such a swingable and vertically movable semi-moving state, and the wing 1 is bent by the bending of the wing 1 at the last stage of the closing operation of the wing. When the lower edge of the lock piece 4 moves down, the tip of the lock piece 4 is pushed up by the bottom surface 16, and the base end 10 rides up from the inclined portion 8 to the constraint portion 9. In this state, the swing of the tip of the lock piece 4 toward the inside of the body is prevented, so that even if a lateral force is applied from the inside of the wing 1, the tip of the lock piece 4 and the lock hole 15 come into contact with each other. Lateral external force is received, and lateral deformation of the wing 1 is prevented.

When the wing 1 is opened, the lower end of the wing first moves slightly upward due to the deformation of the wing 1 when a force in the opening direction is applied to the wing 1 from an opening / closing drive device (not shown). Is disengaged from the restraining portion 9 and moves to the inclined portion 8. For this reason, the lock piece 4 is in a semi-movable state where it can move up and down and swing, and as the wing 1 opens and the lock piece 4 moves downward, the permissible swing angle increases and the wing 1 opens. The operation is allowed, and accordingly, the tip of the lock piece 4 is
And the lock piece 4 is disengaged from the lock hole 15, and finally, the biasing force of the spring 11 holds the base end of the lock piece 4 pressed against the lower end of the inclined portion 8. The Rukoto.

[0019]

[Effect of the Invention] As described above, the lock device of the present invention utilizes the subtle movement when the wing is opened / closed by the opening / closing device, so that the center of the lower edge of the wing is moved to the upper edge of the tilt or the floor of the cargo bed. It locks to immovable members such as side edges, effectively preventing lateral bending of the center of the lower edge of the wing in the closed state, and enabling opening and closing of the wing without special engaging and disengaging operations. It was done. Therefore, according to the present invention, locking of the lower edge of the wing to prevent lateral deflection of the wing can be performed without providing a special driving device and without any special operation, and complete opening and closing of the wing can be completed. There is an effect that automation can be performed with a simple structure.

[Brief description of the drawings]

FIG. 1 is a sectional side view of a locked state of an embodiment.

FIG. 2 is a sectional side view of the embodiment in a state immediately before locking.

FIG. 3 is a diagram schematically showing a wing type van body;

[Description of Signs] 1 Wing 4 Lock piece 8 Inclined part 9 Restraining part 11 Spring 14 Tilt 15 Lock hole 16 Bottom 17 Guide piece

Claims (1)

(57) [Scope of request for utility model registration] 1. The lower edge of the wing of the carrier body is upper and lower
With the support pin (3) inserted through the long hole (7)
Can move up and down, and the lower end can swing inside the wing
The lock piece (4) suspended from the
When it is in contact with the upper end (10) of the lock piece (4)
Locked by restricting movement to the outside of the wing
A fixing member (9) for preventing the piece (4) from swinging inward.
When the lock piece (4) is moved upward, the upper end (10) of the lock piece (4) is
Inclined part (8) for guiding to the engagement position with the fixing member (9)
Release from the fixing member (9) when the lock piece (4) moves down.
The lower end of the lock piece that has been swung inward toward the wing.
And a spring (11), members for securing the upper edge or lower edge of the wing of the loading floor or the like of tilt (14), when the wings closed
Vertical lock hole to receive the lower end of lock piece (4)
(15) and the lower end of the lock piece (4) when the wing is closed.
And the lower end of the lock piece (4) when the wing enters the closed position.
(4) a spring (11) has a locking device of the wing lower edge of the van body track and a guide piece to swing outward (17) against the biasing force of.