JPH089330B2 - Locking device for article carrier - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly used for storing and storing a large number of articles that are often handled in a store or the like, and loading and transporting the articles to a truck or the like as necessary. The present invention relates to an article carrier.

2. Description of the Related Art Conventionally, as an article carrier of this type, for example,
There is provided an article carrier disclosed in Japanese Patent Application No. 58-48926. That is, the article transport vehicle has a rear side frame (back panel body) and two side frames (side panel bodies) facing each other on the left and right sides of the rear side frame in a plan view gate shape. An object mounting bottom frame (base panel body) is arranged between the lower parts of the rear side frame and both side frames, and the left and right end portions are at the lower end of the rear side frame and the entire end portions are at the lower end of the both side frames. To
Each has a moving wheel. The object loading bottom frame is swingable in an upright state along a rear frame via a hinge portion. Further, the adjacent vertical rods of the rear side frame and the both side frames are connected by two connecting tools in the vertical direction, respectively, and at least one side frame is rotatable along the rear side frame. . A lock mechanism is provided for fixing the horizontal object-carrying bottom frame to the side frame, and this lock mechanism is provided between the two plate members fixed to the object-carrying bottom frame and the holes formed in these plate members. The operation lock pin is inserted and the operation rod pin is slid through the operation part bent at the inner end of the operation rod pin, so that the outer end of the operation lock pin is inserted into and removed from the bracket hole provided in the side frame. I am free. The withdrawal limit of the operation lock pin is regulated by the front protrusion, and the pushing limit is regulated by the rear protrusion. A slot is formed in the hole to allow the projection to pass through. The rear slot is used for passing the front projection when setting the operation lock pin.

SUMMARY OF THE INVENTION According to the above-mentioned conventional type, when the operation lock pin rotates and the front projection faces the groove hole, the operation lock pin may be unexpectedly pulled out. Therefore, the slot is modified by welding after setting so that the passage of the rear projection is allowed but the passage of the front projection is blocked,
The work is tedious. Also, when the lock mechanism is locked, the operating part is hanging down due to its own weight. Therefore, when trying to carry an article carrier with a forklift truck,
It may happen that the fork comes into contact with the operating portion and the lifting cannot be performed stably, and the operating rod pin including the operating portion is bent and deformed, so that the desired locking action cannot be performed smoothly.

The object of the present invention is to easily correct the through hole after the lock pin is set, the direction of the lock pin can be regulated regardless of its own weight, and the lock action can be surely performed by one-touch operation. The point is to provide a lock device for the article carrier.

Means for Solving the Problems To achieve the above object, a lock device for an article carrier according to the present invention is a lock device for connecting a base panel body to an upright panel body, and a main body fixed to the base panel body. And a lock pin that is slidably guided by a through hole formed in the main body and that engages with a locking portion on the upright panel body side by protrusion, and a biasing force that moves this lock pin in a protrusion direction and a lateral direction. In order to maintain the extracted position, the elastic body provided between the lock pin and the elastic body provided between the main body and the through hole can pass through the through hole, and the elastic body is biased by the elastic body to engage the main body from the protruding direction. A first stopper, a second stopper for preventing withdrawal provided on a lock pin so as to engage with the main body side when it is withdrawn more than necessary against the elastic body, and is cut and raised in the through hole forming portion. Consists of a caulking operation piece are doing.

According to the configuration of the present invention, when the lock pin is set on the main body, the lock pin is inserted into the through hole formed by cutting and raising the caulking operation piece and the second stopper is passed through. And the caulking operation piece,
The through hole blocks the passage of the second stopper by correcting the cut-and-raised part back with a hammer. In use, the biasing force of the elastic body acts on the lock pin in an oblique direction. Therefore, when the lock pin is pulled out against the biasing force, the biasing force in the oblique direction causes the first stopper to move. Is strongly engaged with the main body side, so that the lock pin is maintained at the extracted position. Then, by moving the inner end of the lock pin against the urging force, the first stopper is disengaged from the main body side, so that the urging force causes the lock pin to project outward and engage with the locking portion. This locking position is maintained by the biasing force. As described above, since the direction of the lock pin is restricted by the urging force of the elastic body, it does not rotate under its own weight.

Embodiment One embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 7 and FIG. 8, the article transporting tool 1 includes a back panel body 10 and two side panel bodies 20 facing each other on the left and right sides of the back panel body 10.
Are arranged in a gate shape in plan view, a base panel body 33 is arranged between the lower portions of the back panel body 10 and both side panel bodies 20, and at the lower end of the back panel body 10 are provided on both left and right sides. Wheels 11 and front wheels 21 are provided at the lower ends of both side panel bodies 20 at the front ends. The rear end of the base panel body 33 is connected to the lower end of the back panel body 10 via the hinge 2 so that the base panel body 33 can be swung upright along the back panel body 10. Further, the proximity portions of the back panel body 10 and the both side panel bodies 20 are coupled by a coupling tool 3, and one side, that is, the right side panel body 20 is rotatable along the back panel body 10. . A locking device 40 for fixing the horizontal base panel body 33 to the side panel body 20 is provided at the front end of the base panel body 33.
Is provided.

 Next, the details of the main part will be described.

6 to 8, a back panel body 10 includes a gate-shaped outer frame 12 formed by bending a pipe or the like, and the outer frame.
The lower frame 13 connecting the lower ends of the 12 and the top rod 12 of the outer frame 12
A plurality of pipe-shaped vertical members 14 arranged between a and the lower frame 13
And a horizontal member 15 having a channel-shaped cross section disposed between the vertical rods 12b of the outer frame 12. Pin members 16 for supporting the base panel body 33 are attached to the middle portion of the lower frame 13, and rear wheel attachment plates 17 are fixed to the lower surfaces at both ends. Then, the rear wheel 11 is attached to the rear wheel mounting plate 17 via the support bracket 18 and the turning portion 19.

In FIGS. 1, 2, and 6 to 8, the side panel body 20 is a gate-shaped outer frame 22 formed by bending a pipe or the like, and a lower frame connecting the lower ends of the outer frame 22. twenty three
A plurality of pipe-shaped vertical members 24 disposed between the top rod portion 22a of the outer frame 22 and the lower frame 23, and a plurality of cross-section channels disposed between the vertical rod portions 22b of the outer frame 22. It consists of a cross member 25 in the shape of a sheet. A front wheel mounting plate 26 is fixed to the lower surface at the front end of the lower frame 23, and a locking plate (an example of a locking part) 28 having a lock hole 27 is welded or cut into the front wheel mounting plate 26. Provided by. Then, the front wheel 21 is attached to the front wheel mounting plate 26 via the support bracket 29 and the turning portion 30.

The base panel body 33 includes a pair of left and right connecting plates 34.
And a plurality of angle members 35 before and after being positioned between the connecting plates 34, and a base plate 36 provided between the upper surfaces of the connecting plates 34 and the angle members 35. A tubular member 37 is attached to the pin member 16 so as to be freely fitted from the left and right directions. Therefore, the base panel body 33 can be erected sideways around the pin axis by externally fitting the tubular member 37 to the pin member 16, and the base panel body 33 laid sideways can be placed horizontally on the lower frames 13 and 23. It is received by the board. These tubular member 37 and pin member 16
The hinge tool 2 is constituted by

On both sides of the front part of the base panel body 33, the locking plates 28 of the front wheel mounting plate 26 act on the rear vertical rods 22b of the side panel body 20 in the standing posture and in the horizontal posture. The locking device 40 that acts on is provided. That is, as shown in FIGS. 1 to 4, the main body 41 of the locking device 40 is a channel material whose upper part and front and rear are open, and its both side plate parts 41A,
It is fixed by welding the upper end of 41B to the lower surface of the angle member 35. The left and right side plate portions 41A and 41B have through holes 4 in the left-right direction.
2A, 42B are formed, in which the through hole 42A in the inner side plate portion 41A is formed in an elliptical shape slightly longer in the front-rear direction, and a pair of upper and lower slits 43a are formed in the arc forming portion on the front side thereof.
And a caulking operation piece 43 is formed between both slits 43a. The lock pin 44, which is guided by the through holes 42A and 42B and is swingable in the left-right direction, has an operation portion 44a bent at 90 degrees in its inner end. A tension spring 46 (an example of an elastic body) is provided between the inner end of the lock pin 44 and the locking portion 45 formed on the inner side plate portion 41A. Here, the pulling direction of the pulling spring 46 is an outward (projecting direction) and a backward (lateral direction) diagonal direction, whereby the directionality of the lock pin 44 is determined with the operating portion 44a thereof facing forward. A first stopper 47 for maintaining the extraction position (unlocked) is provided by crushing on the surface of the lock pin 44 in the middle portion and on the side opposite to the bending direction of the operation portion 44a.
The first stopper 47 is formed by making the front-rear length B of the through hole 42A longer than the protruding length A from the front end of the lock pin 44 to the outer end of the first stopper 47, that is, by setting A <B. , Through the through hole 42A provided in the inner side plate portion 41A, and by the oblique spring force of the tension spring 46 described above, the edge forming the through hole 42A and the rear edge portion 48.
Can be engaged from the inside. And lock pin 44
At a position slightly outward of the first stopper 47, the protrusion length is displaced 90 degrees with respect to the first stopper 47 and is longer than the first stopper protrusion length A and the through hole front-rear length B. A second stopper 49 that satisfies C, that is, A <B <C is provided. The second stopper 49 regulates the maximum protrusion amount of the lock pin 44 by coming into contact with the outer side plate portion 41B from the inside, and also comes into contact with the inner side plate portion 41A from the outside to prevent extraction. , The maximum withdrawal amount (withdrawal) against the tension spring 46 is restricted. Note that the lock pin 44 cannot be set from the inside due to A <B <C described above. In this case, by using the slit 43a described above, the caulking operation piece 43 is cut and raised as shown in the phantom line in FIG. 3 and in FIG. 5, and the opening portion length D generated by this is changed to the second stopper portion protruding length. Longer than C, that is, A <B <
By setting C <D, setting with the second stopper 49 inserted can be easily performed, and after the setting, the caulking operation piece
By caulking 43 with a hammer or the like and returning it to its original position as shown in FIG. 4, passage of the second stopper 49 inward is blocked.

Operation holes 38 are formed on both sides of the front portion of the base plate 36 and at positions facing the operation portion 44a of the lock pin 44.

A stay 5 is provided between the front ends of both side panel bodies 20 for maintaining a gap and preventing a load from collapsing. That is, for example, the front vertical rod portion 22 of the left side panel body 20.
A first holder 6 of the stay 5 is provided at b, and a second holder 7 to which the stay 5 is detachably attached is provided at the front vertical rod portion 22b of the right side panel body 20.

The article carrier 1 assembled as described above opens the right side panel body 20 with respect to the back panel body 10 at a right angle, and horizontally swings the base panel body 33 through the hinge tool 2. The load is loaded by moving it to place it on the lower frame 23 of the side panel body 20 and causing the lock device 40 to lock. At that time, the locking device 40
Locks the lock pin 44 against the tension spring 46 as shown by the phantom line in FIG. 1 and the phantom line in FIG.
Then, the first stopper 47 passing through the through hole 42A is strongly engaged with the edge portion 48 by the biasing force of the tension spring 46 in the oblique direction. As described above, by horizontally swinging the base panel body 33, the lock pin 44 faces the lock hole 27 of the locking plate 28. In this state, the upper operation hole 38 of the base panel body 33
Insert your hand through and operate the lock pin 44
A is moved to the front (front side) against the tension spring 46.
As a result, the first stopper 47 is disengaged from the edge portion 48, so that the lock pin 44 is projected outward by the urging force of the tension spring 46, and the lock hole 27 of the locking plate 28 is shown as shown by the solid line in FIGS. Engage with. The protrusion is restricted by the second stopper 49 coming into contact with the outer side plate portion 41B.

The stay 5 is first removed from the second holding tool 7 in the article transport tool 1 that has been transported for a desired period of time and unloaded after being unloaded. Then, as described above, the lock pin 44 is pulled by the tension spring 46.
Then, the base panel body 33 is pivoted upward through the hinge tool 2 to move the base panel body 33 along the back panel body 10. Then, the lock pin 44 is moved again to project to the rear of the rear vertical rod portion 22b. Then, the right side panel body 20 is rotated around the pin axis through the connecting tool 3 and the like to be along the back panel body 10 side. Thereby, it can be folded and stored in an L shape in a plan view.

EFFECTS OF THE INVENTION According to the present invention having the above-described structure, after the lock pin is passed through the through hole and the second stopper is passed through, the caulking operation piece is corrected by hammering or the like so that the cut-and-raised piece returns to its original state. The modification work can be easily and quickly performed. In addition, since the biasing force of the elastic body acts diagonally on the lock pin in the use state, when the lock pin is pulled out against the biasing force, the biasing force in the diagonal direction causes the first stopper to move. Can be strongly engaged with the main body side, whereby the pull-out position of the lock pin can be maintained without rattling. Then, by moving the inner end of the lock pin against the biasing force, the first stopper can be removed from the main body side, whereby the lock pin projects outward by the biasing force and engages with the locking portion, You can perform the desired lock. In this way, one-touch operation can be expected to have a reliable locking action, and the locked position can be maintained by the urging force. Further, since the lock pin is restrained from being biased by the urging force of the elastic body, for example, the folding operation portion can be housed in the main body in a horizontal direction without being rotated by its own weight, whereby a contact of a fork or the like can be achieved. The lock pin maintains its shape, and the desired locking action can always be performed smoothly.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a partially cutaway plan view of a locking device portion, FIG. 2 is a cutaway front view of the same portion, and FIG. The figure is a side view of the main parts when the same is used, and Fig. 5 is the side view of the main parts when the same is set,
6 is a side view showing the hinge portion, FIG. 7 is a perspective view of the whole, and FIG. 8 is a plan view of the same. 1 ... article carrier, 2 ... hinge tool, 3 ... coupling tool, 5
…… Stay, 10 …… Back panel body, 11 …… Rear wheel, 16
...... Pin member, 17 …… Rear wheel mounting plate, 20 …… Side panel body, 21 …… Front wheel, 26 …… Front wheel mounting plate, 27 ……
Lock hole, 28 ... Locking plate (locking part), 33 ... Base panel body, 37 ... Cylindrical member, 38 ... Operation hole, 40 ... Lock device, 41 ... Main body, 41A, 41B ... … Side plate, 42A, 42B… Through hole, 43… Caulking operation piece, 43a… Slit, 44 …… Lock pin, 44a… Operating part, 46 …… Tension spring (elastic body), 47 …… 1 stopper, 48 ...... edge, 49 ...... second stopper.

Claims (1)

[Claims] 1. A lock device for connecting a base panel body to an upright panel body, the main body being fixed to the base panel body and slidably guided by a through hole formed in the main body. The lock pin that engages with the locking portion on the side of the standing panel by means of the elastic member, the elastic body provided between the lock pin and the main body for urging the lock pin in the protruding and lateral directions, and through the through hole. A first stopper provided on the lock pin for maintaining the extraction position so as to engage the main body side from the protruding direction by the urging force of the elastic body, and the main body side when the elastic body is withdrawn more than necessary against the elastic body A lock device for an article carrier, comprising: a second stopper for preventing extraction, which is provided on the lock pin so as to be engaged with the lock pin; and a caulking operation piece formed by cutting and raising the through hole forming portion.