JP3518311B2 - Goods carrier with wheel device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article carrying device equipped with a wheel device, which is used to store and store a large number of articles, which are often handled mainly in shops, and to load and carry the articles on a truck or the like as needed. It is about ingredients.

[0002]

2. Description of the Related Art Conventionally, as this type of article carrier, for example, a simple article carrier disclosed in Japanese Utility Model Laid-Open No. 56-63666 has been provided. That is, in the simple article transporting tool, a central vertical frame (back panel body) and two side frames (side panel bodies) facing each other on the left and right sides of the vertical frame are arranged in a U shape in plan view. It is configured such that a rectangular object mounting frame (base panel body) is provided between the left and right side frames, and moving wheels are provided on the left and right side frames. And the object loading frame and the left and right side frames are
It is pivotally connected to the front surface of the vertical frame and both left and right ends in a state in which the rocking can be switched to a folded posture that is superimposed on the front side of the vertical frame, and at the pivotal connection part between one side frame and the vertical frame. ,
The side frame is provided with a lock mechanism capable of fixedly holding and releasing the fixed state in a predetermined extended posture.

According to this conventional structure, both side frames can be used by setting them in a predetermined stretched posture, and by pushing and pulling force, the vehicle can travel via the moving wheels. In addition, by swinging the object loading frame and the other side frame in a folding posture in which they are superposed on the front side of the vertical frame, the storage posture in which the whole is folded in an L-shape can be obtained, and thus the L-shaped By moving the simple article transporter, multiple simple article transporters can be compactly aligned in the front-rear, left-right stacked state and stored in a corner of the room or loaded on the truck bed in this aligned state. You can

Further, since the moving wheel group is of the idling type, the stop position of the simple article conveying tool may be unexpectedly disturbed when the use traveling is stopped or the storage posture described above. Therefore, conventionally, foot-operated wheel locking means is provided on the moving wheels. At that time, the wheel lock means is configured to maintain (fix) only the posture of the foot operation body during the lock operation.

[0005]

However, according to the above-mentioned conventional structure, the posture of the foot operation body is not maintained (fixed) when unlocked, so that the foot operation body unexpectedly moves while traveling and the lock operation is performed. The posture may change. In particular, when the foot operation body unexpectedly switches to the posture at the time of the lock operation while the L-shaped simple article transport tool is traveling, the simple article transport tool may fall down.

In view of the above, according to the first aspect of the present invention, the operating body of the wheel lock means is capable of maintaining both postures of a lock operation and a lock release with a simple structure and an article conveying tool with a wheel device. The purpose is to provide.

[0007]

In order to achieve the above-mentioned object, an article carrier with a wheel device according to claim 1 of the present invention is an article carrier having wheel devices provided at a plurality of lower portions of a main body. The wheel device comprises a bracket attached to the main body side, and a wheel rotatably provided on the bracket via a wheel shaft. At least a part of the wheel device has a wheel attached to the bracket. Is provided on the bracket side so as to be lifted up and down, and by the downward movement thereof, the wheel can be pressed into contact with and separated from the wheel, and the wheel can be placed on the side of the lock body.
Freely rotatable on the wheel shaft and in the axial direction with respect to the wheel shaft.
In the setting range, the operating body is provided so as to be movable within the setting range, and when the operating body is rotated in the lock operation direction between the lock body and the operating body, the lock body is moved downward. There are provided cam means for maintaining the lowered posture and engagement means for raising the lock body and then maintaining the raised posture when the operating body is rotated in the unlocking direction. The means includes an engaged portion formed around the cutout portion provided on the operating body side and a protruding portion on the lock body side.
And consists of engaging pieces provided, the operating body to the lock body
An elastic body that elastically biases the contact body is provided, and when the operating body is rotated in the unlocking direction, the engagement body is pushed up by the cam body on the operating body side to move the lock body upward, and then the engaged body. Abut the mating part on the engaging piece to protect the operating body from the elastic body.
And move it, and the engagement piece is opposed to the notch
Thus, the operating body is moved by the elastic force of the elastic body, the engaging piece is engaged with the engaged portion through the cutout portion, and the rising posture of the lock body is maintained. It was done.

Therefore, according to the first aspect of the present invention, when the article conveying tool is stopped, the operating body is rotated in the lock operation direction. Then, first, the cam means is actuated, whereby the lock body is moved downward and brought into pressure contact with the wheels, whereby the lock operation is performed. The cam means is caused to sufficiently act in accordance with the subsequent rotation of the operating body, thereby maintaining the lowered posture of the lock body. Thus, the cam means can maintain the lock operation posture of the operation body during the lock operation. When the article transporting tool is allowed to travel from such a stop, the operating body is rotated in the unlocking direction. Then, first, the lock operation by the cam means can be released, and the engagement body is pushed up by the cam body on the operating body side to move the lock body upward, whereby the wheel is unlocked. Next, the engaged portion that has moved along with the rotation of the operating body is engaged with the engaging piece to maintain the rising posture of the lock body. At that time, the portion of the engaging piece located behind the engaged portion has moved,
By moving the operating body by the elastic force of the elastic body, the operating body is positioned through the notch. With this, the engaging means including the engaging piece and the engaged portion can maintain the unlocked posture of the operating body at the time of unlocking.

According to a second aspect of the present invention, there is provided an article transporting tool with a wheel device, wherein:
The main body includes a back panel body, two side panel bodies, and a base panel body, and the back panel body and the two side panel bodies are arranged in a gate shape in plan view, and at least one side panel body. Is foldably connected to the back panel body, and a base panel body is attached to the lower part of one panel body so that the base panel body can be erected sideways upright with its proximal end. It is characterized in that a base panel body locking means that acts on is provided.

Therefore, according to the second aspect of the present invention, in the article carrier, both side panel bodies are opened at right angles to the back panel body, and the base panel body is horizontally laid down. When the locking means is locked, it becomes ready for use. In addition, the article transporter unlocks the base panel body locking means,
After the base panel body is erected upward and along the panel body, the base panel body locking means is locked to the panel body side, and the side panel body is rotated so as to be along the back panel body side. L-shaped and I
It can be folded and stored in a letter shape. At that time, for example, L
When running the article transport tool folded in a letter shape,
The operating body does not unexpectedly switch to the lock operation posture.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
It will be described with reference to the drawings. As shown in FIGS. 5 and 6, the main body 9 of the article transporting tool 1 includes one back panel body 10, two side panel bodies 20, and one base panel body 30. That is, the back panel body 10 and the 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 a plan view, and the back panel body 10 and the two side panel bodies 20 are disposed in a front view. Side panel body 20
The base panel body 30 is disposed between the lower part of the base panel body 30 and the lower part.

The rear end of the base panel body 30 is connected to the lower end of the back panel body 10 via the hinge tool 2, so that the base panel body 30 sways into a standing posture along the back panel body 10 and a horizontal laid posture. It is free to move. Further, the proximity portions of the back panel body 10 and both side panel bodies 20 are coupled by a coupling tool 3, and at this time, at least one, that is, the right side panel body 20 is rotated along the back panel body 10. It is said to be flexible (foldable).

On both sides of the front end of the base panel body 30, a horizontal horizontal base panel body 30 and a base panel body for fixing the standing base panel body 30 to the side panel body 20. Locking means 40
Is provided. Further, rear wheel devices 50 are provided at both left and right ends at the lower end of the back panel body 10, and front wheel devices 51 are provided at the front end parts at the lower ends of both side panel bodies 20, respectively.

Next, the details of the main parts will be described. The back panel body 10 includes a gate-shaped outer frame 11 formed by bending a pipe and the like, and a lower frame 12 that connects lower ends of the outer frame 11 to each other.
A plurality of pipe-shaped vertical members 13 arranged between the top rod 11a of the outer frame 11 and the lower frame 12, and a plurality of pipe-shaped vertical members 13 arranged between the vertical rods 11b of the outer frame 11. The cross member 14 and the like are used. Rear wheel devices 50, which will be described later, are attached to the lower surfaces of both ends of the lower frame 12.

The side panel body 20 includes a gate-shaped outer frame 21 formed by bending a pipe, a lower frame 22 connecting lower ends of the outer frame 21, and a rod 21 of the outer frame 21.
It is composed of a plurality of pipe-shaped vertical members 23 arranged between a and the lower frame 22, and a plurality of horizontal members 24 arranged between the vertical rods 21b of the outer frame 21. A mounting plate 25 for mounting a front wheel device 51, which will be described later, is provided on the lower surface at the front end of the lower frame 22 so as to project inward.

The frame body 31 of the base panel body 30
Is a window frame-shaped outer frame body 32, a plurality of left and right members 33 provided between a pair of left and right front and rear frames 32a of the outer frame body 32, a pair of front and rear left and right frames 32b and left and right of the outer frame body 32. A plurality of front and rear members 34 provided between the members 33 are formed into a flat frame shape. Then, the base panel body 3 is molded by being molded with the resin 36 while having a large number of through portions 35.
0 is configured. In addition, the base panel body 30 that has been laid down is
It is received by the horizontal plate portion of each of the lower frames 12 and 22, and thus the mounting surface 37 is formed by the upper surface thereof.

Both sides of the front part of the base panel body 30 act on the backside vertical rods 21b of the side panel body 20 in the standing posture, and on the side panel body 20 side in the sideways posture. The base panel body locking means 40 acting on the locking plate is provided. That is, the main body member 41 of the base panel body locking means 40 is fixed to the base panel body 30 side by coming into contact with the base panel body 30 from below and then driving a rivet from below.

The lock pin 42, which is inserted into the body member 41 and is slidable in the left-right direction, is biased by a tension spring 43 so as to project in the engaging direction (outward direction). An operation hole 38 is formed in the base panel body 30 so as to face the operation portion 42a at the inner end of the lock pin 42.
The operation hole 38 is formed in such a shape that the movement of the operation portion 42a can be confirmed from above and the operation portion 42a can be operated.

A stay 4 is provided between the front ends of both side panel bodies 20 for maintaining a space and preventing the collapse of loads. That is, for example, the first holding member 5 of the stay 4 is provided on the front vertical rod portion 21b of the left side panel body 20, and the front vertical rod portion 2 of the right side panel body 20 is provided.
The 1b is provided with a second holder 6 to which the free end of the stay 4 can be engaged and disengaged.

The wheel devices provided at a plurality of lower portions of the main body 9, that is, the rear wheel device 50 and the front wheel device 51 have the same structure and will be described below with reference to FIGS. 1 to 5. To do.

The wheel devices 50, 51 are of the caster type and are fixed to the main body 9 side, that is, both ends of the lower frame 12 of the back panel body 10 and the mounting plate 25 of the side panel body 20 with fixing tools such as bolts and nuts. It has a mounting seat 52 mounted by 45, and a bracket 54 is rotatably provided to the mounting seat 52 via vertical pins 53 and the like. The bracket 54 has a gate-shaped frame shape, and the wheel 5 is inserted through a wheel shaft 58 that is inserted between the leg plates.
9 is rotatably provided. Here, as the wheel shaft 58, a bolt / nut type is adopted.

The front wheel device 51, which constitutes at least a part of the wheel device, is provided with a wheel locking means 60 for preventing the wheel 59 from rotating on the bracket 54 thereof. That is, the wheel lock means 60 includes the bracket 54.
The lock body 61 is provided on the side of the wheel 59 so as to be lifted up and down and can be pressed against and separated from the wheel 59 by its descending motion, and the operating body 65 is rotatably provided on the wheel shaft 58.

The lock body 61 is made of an inverted L-shaped plate material, and the upper horizontal plate portion 61A is located in the upper portion of the bracket 54 and faces the wheel 59 from above. Further, the middle of the vertical plate portion 61B of the lock body 61 is formed in an inclined portion toward the outside toward the lower side, and this inclined portion is positioned in a rectangular hole 55 formed in one leg plate of the bracket 54 in the vertical direction. As a result, the lower portion of the vertical plate portion 61B of the lock body 61 is located outside one leg plate portion, and a vertically elongated hole 62 through which the wheel shaft 58 is inserted is formed in the lower portion.

As a result, the lock body 61 has a rectangular hole 55.
And the wheel shaft 58, and is configured to be able to move up and down. Then, as the lock body 61 descends, the lateral plate portion 61A moves to the wheel 5
The lock operation is performed by abutting (pressing) the upper part of 9. Further, as the lock body 61 rises, the horizontal plate portion 6
The lock is released when 1A is separated from the upper portion of the wheel 59.

The operating body 65 is externally fitted to the wheel shaft 58 through a through hole 66 formed in an intermediate portion in the front-rear direction, and is thus rotatable around the wheel shaft 58 (movable by a seesaw). It is provided in. On the upper part of the operating body 65, a foot-operated lock operating portion 67 and a lock releasing portion 68 are provided separately in front and rear.

Between the lock body 61 and the operating body 65, when the operating body 65 is rotated in the lock operation direction A, a cam for lowering the lock body 61 and then maintaining the lowered posture thereof. Means 73 are provided.

That is, a plate-shaped cam piece 63 is projected outward at the lower end of the lower portion of the lock body 61, which is located outside the one leg plate. And, in the middle part and the lower part in the front-back direction of the operating body 65,
A lower arcuate cam body 69 that is gradually separated from the axial center of the wheel shaft 58, that is, the axial center of the through hole 66 is provided on the lock operating portion 67 side.
The cam piece 63 is opposed to and abuttable from above.

The cam pieces 63 and the lower arc-shaped cam body 69
An example of the cam means 73 is configured by the above. Then, by the cam means 73, the operation body 6 at the time of the lock operation
The posture of No. 5 is maintained.

When the operating body 65 is rotated in the unlocking direction B between the lock body 61 and the operating body 65,
Engaging means 74 is provided for raising the lock body 61 by the cam body on the side of the operating body 65 and then maintaining the raised posture. The engaging means 74 includes an engaged portion 70 formed on the operating body 65 side and an engaging piece 6 provided on the lock body 61 side.
An example is constituted by 4 and.

That is, the engaging piece 64 is provided on the upper part of the portion of the lock body 61 located outside one of the leg plates.
Is projected outward. Here, a stepped engagement portion 64a is formed at an intermediate position on the outer surface of the engagement piece 64.

In the middle and upper part of the operating body 65 in the front-rear direction, the wheel shaft 5 is closer to the lock operating part 67 side.
No. 8 axial center, that is, the upper arc cam body gradually separated from the axial center of the through hole 66 (an example of a cam body on the operating body side)
71 is provided, and the upper arcuate cam body 71 is opposed to and abuttable against the projecting piece 64 from below. A cutout portion 72 is formed at a corner of the lock operation portion 67 on an extension of the upper arcuate cam body 71, and the periphery of the cutout portion 72, that is, the upper arcuate cam body 71 and the lock operation portion 67. The engaged portion 7 is formed by the remaining portion between
0 is formed.

The operating body 65 is constructed so as to be movable with respect to the wheel shaft 58 in the axial direction within a set range, and has an elastic body (leaf spring) interposed between the operating body 65 and the outer end of the wheel shaft 58. And coil springs) 57, so that the vertical plate portion 61B
Is elastically urged to come into contact with.

Therefore, when the operating body 65 is rotated in the unlocking direction B, the engaging piece 64 is pushed up by the upper arcuate cam body 71 to move the lock body 61 upward,
The engaged portion 70 can be brought into contact with the engaging piece 64. When the operating body 65 is further rotated in the unlocking direction B, the engaging portion 64
The a is in a state of riding on the outer surface of the engaging piece 64, and thus the operating body 65 is moved outward against the elastic body 57.
The engaging piece 64 faces the engaging portion 64a,
The engaging piece 64 is engaged by the elastic force of the elastic body 57.
4a is elastically engaged. As a result, the rotation of the operating body 65 in the lock operation direction A is prevented, and thus the rising posture of the lock body 61 is maintained.

The engaging piece 64, the engaged portion 70, etc. constitute an example of the engaging means 74, and the engaging means 74 is configured to maintain the attitude of the operating body 65 when the lock is released. Has been done.

An example of the wheel lock means 60 is constituted by the above 61 to 74. The operation of the above-described embodiment will be described below. The article transporting tool 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 moves the base panel body 30 horizontally via the hinge tool 2. When the base panel body locking means 40 is locked while the side panel body 20 is placed on the lower frame 22 of the side panel body 20 by tilting and swinging, the state becomes usable as shown in FIGS. 5 and 6.

As a result, it is possible to load a load on the mounting surface 37. However, at this time, if the locking action is forgotten, the worker who loads the load can operate the operation hole 3
By visually observing the operation portion 42a of the lock pin 42 through the connector 8, it is possible to easily confirm that the lock pin 42 is in the unlocked state, that is, forgetting to perform the lock action, and the lock operation is performed.

After loading the cargo and carrying out the intended transportation,
In the article transport tool 1 that has been unloaded by unloading a load, the stay 4 is first removed from the second holding tool 6. Next, the mounting surface 37
After the lock pin 42 is pulled out and moved from the side via the operation portion 42a, the base panel body 30 is rotated (standing up) upward through the hinge tool 2 so as to follow the back panel body 10.

Then, the lock pin 42 exposed on the back surface side of the base panel body 30 is again moved to the outside so as to project to the rear of the rear vertical rod portion 21b, whereby the lock movement can be performed. Next, the right side panel body 20 is connected to the connecting tool 3
It is rotated around the pin axis center through, for example, so as to be along the back panel body 10 side. As a result, the article transporting tool 1 is shown in FIG.
As shown in FIG. 3, it can be folded and stored in an L shape in a plan view. Note that the lock pin 42 can be unlocked by moving the lock pin 42 inward by the reverse operation, and thus the base panel body 30 can be horizontally swung horizontally as described above.

When the article carrier 1 is stopped, the operating body 65 is rotated in the lock operation direction A, and the cam means 7 is operated.
By 3, the posture of the operating body 65 is maintained during the lock operation. That is, the lock operation portion 67 of the operation body 65 is stepped on to rotate the operation body 65 in the lock operation direction A around the wheel shaft 58. Then, the cam piece 63 is first pushed down by the lower arcuate cam body 69, whereby the lock body 61 is moved down while being guided by the rectangular hole 55 and the wheel shaft 58, and the horizontal plate portion 61A is moved to the wheel 59.
It is pressed against the upper part of the, and as shown by the phantom lines in FIGS. 1 and 3, the locking operation is performed.

Then, the outermost end portion of the lower arcuate cam body 69 that has moved along with the rotation of the operating body 65 is caused to act on the cam piece 63, and as shown in FIG. Maintain. Accordingly, the cam means 73 including the cam piece 63 and the lower arc-shaped cam body 69 can maintain the lock operation posture of the operation body 65 at the time of lock operation, and can prevent unexpected traveling at the time of stop.

When the article conveying tool 1 is run from such a stop, the operating body 65 is rotated in the unlocking direction B, and the engaging means 74 maintains the attitude of the operating body 65 at the time of unlocking. . That is, the operating body 65
The lock release portion 68 is depressed to rotate the operating body 65 in the lock release direction B around the wheel shaft 58. Then,
First, while the locking operation by the cam means 73 described above is released, the engagement piece 64 is pushed up by the upper arc-shaped cam body 71, and the unlocked lock body 61 is thus connected to the rectangular hole 55 and the wheel shaft 58. Then, the horizontal plate portion 61A is moved upward while being guided by, to separate the horizontal plate portion 61A from the upper portion of the wheel 59, and the lock is released as shown by the solid line in FIG.

Then, the engaged portion 70 that has moved with the rotation of the operating body 65 can be brought into contact with the engaging piece 64. When the operating body 65 is further rotated in the unlocking direction B, the engaging portion 64a subsequently rides on the outer surface of the engaging piece 64, and thus the operating body 65 is moved outward against the elastic body 57. To move. Then, by causing the engagement piece 64 to face the engagement portion 64a, the engagement piece 64 is elastically engaged with the engagement portion 64a by the elastic force of the elastic body 57, as shown in FIG. As a result, the rotation of the operating body 65 in the lock operation direction A can be prevented, so that the rising posture of the lock body 61 is maintained as shown by the solid line in FIG. At that time, the portion of the engagement piece 64 located at the rear of the engaged portion 70 has moved is the cutout portion 72.
Through (in the cutout 72).

In this way, the engaging piece 64 and the engaged piece 70
By the engaging means 74 including the above, the posture of the operating body 65 at the time of unlocking can be maintained, and the operating body 65 can be maintained while traveling.
Can be prevented from accidentally switching to the posture at the time of lock operation. Therefore, for example, when the article transporting tool 1 folded in an L shape is running, the operating body 65 does not unexpectedly switch to the posture at the time of the lock operation.
There is no risk of the article carrier 1 falling over.

In the above embodiment, the wheel lock means 60 is provided on the front wheel device 51, but the rear wheel device 50 is provided with the wheel lock means 60.
0 may be provided, and further, the wheel locking means 60 may be provided in all the wheel devices 50 and 51.

In the above embodiment, the operating body 6 is provided on one side.
Although the wheel lock means 60 is provided with 5, the wheel lock means 60 may be provided with the operating bodies 65 on both sides.

In the above-described embodiment, the main body 9 is L
Although a form that can be folded into a letter shape is shown, this may be a form that can be folded into an I shape by allowing both side panel bodies 20 to be rotatable. Further, the main body 9 may be a fixed type that cannot be folded, such as a box shape with an open top.

In the above-described embodiment, the base panel body 30 is attached to the lower portion of the back panel body 10 so as to be able to stand upright and sideways, but this is attached to the lower portion of either the left or right side panel body 20. It may be a type in which the base panel body 30 is attached so as to be upright and sideways.

In the above-described embodiment, the resin type mesh type is shown as a constituent member of the base panel body 30, but this is a type of base plate in which the penetrating portion 35 is not formed, that is, an iron plate or a resin. A base plate formed of a plate or the like may be used.

[0049]

According to the first aspect of the present invention described above, when the operation body is rotated in the lock operation direction when the article transporting tool is stopped, the cam means first act to lower the lock body. The wheels are pressed against each other, and the lock operation is performed. Then, the cam means can be caused to sufficiently act in accordance with the rotation of the operating body, whereby the lowered posture of the lock body can be maintained. Accordingly, the cam means can maintain the lock operation posture of the operation body at the time of the lock operation, and can prevent unexpected traveling when the article transporting tool is stopped. If the operating body is rotated in the unlocking direction when the article conveying tool is run from such a stop, the locking operation by the cam means can be released first, and the cam body on the operating body side pushes up the projecting piece to lock the locking body. Will be lifted, and the wheel will be unlocked. Next, the engaged portion that has moved along with the rotation of the operating body can be engaged with the engaging piece, and thus the rising posture of the lock body can be maintained. At that time, the portion of the engaging piece located behind the engaged portion moved should move the operating body by the elastic force of the elastic body.
It can be located through the notch. Thus, the engagement means can maintain the unlocked posture of the operating body at the time of unlocking, and prevent the operating body from unexpectedly switching to the locked operating posture during traveling. in this way,
It is possible to provide a wheel lock means that can maintain both postures of a lock operation and a lock release with a simple structure.

According to claim 2 of the present invention described above,
The article carrier can be used by opening both side panel bodies at a right angle with respect to the back panel body, laying down the base panel body horizontally, and locking the base panel body locking means. Can be in a state. The article carrier also unlocks the base panel body locking means, erects the base panel body upwards and follows the panel body, and then locks the base panel body locking means toward the panel body side, and then the side panel body. By rotating and moving it along the back panel side, it can be folded and stored in an L shape or an I shape in plan view. At this time, for example, when the article transporting tool folded in an L shape is running, the operating body does not unexpectedly switch to the lock operation posture, and the article transporting tool can travel without fear of falling.

[Brief description of drawings]

FIG. 1 is a side view of a wheel device when unlocked in an article carrying tool with a wheel device according to an example of an embodiment of the present invention.

FIG. 2 is a side view of the wheel device at the time of a lock operation in the article carrier with the wheel device.

FIG. 3 is a front view of the wheel device at the time of unlocking the article transporting tool with the wheel device.

FIG. 4 is a perspective view of an engaging means portion of the article conveying tool with the wheel device.

FIG. 5 is a perspective view of the article carrier with the wheel device in a usage mode.

FIG. 6 is a plan view of the article carrier with the wheel device in a usage pattern.

FIG. 7 is a plan view of the article transporting tool with the wheel device in a folded form.

[Explanation of symbols]

1 article carrier 4 stay 9 body 10 Back panel body 12 lower frame 20 Side panel body 25 Mounting plate 30 base panel body 38 Operation hole 40 Base panel body locking means 42 lock pin 42a Operation unit 50 Rear wheel assembly 51 Front wheel assembly 52 mounting seat 53 vertical pins 54 bracket 55 rectangular hole 57 Elastic body 58 wheel axle 59 wheels 60 Wheel locking means 61 Rock body 61A Horizontal plate part 61B Vertical plate part 62 long hole 63 cam pieces 64 engagement piece 64a engaging part 65 Control body 67 Lock operation part 68 Unlocking unit 69 Lower arc cam body 70 Engagement part 71 Upper arcuate cam body (cam body on the operating body side) 72 Notch 73 Cam means 74 Engaging means A Lock operation direction B Lock release direction

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60B 33/00 B62B 3/02 B62B 5/04

Claims (2)

(57) [Claims] 1. An article carrying tool having wheel devices provided at a plurality of lower portions of a main body, wherein the wheel device is rotatably provided on a bracket attached to the main body side and a wheel shaft on the bracket. At least a part of the wheel device is provided with wheel lock means for preventing rotation of the wheel on the bracket, and the wheel lock means is provided on the bracket side so that the wheel lock means can be lifted and lowered to the wheel. With a lock body that can be pressed and separated freely, and on the side of this lock body
Is freely rotatable on the wheel shaft and axially with respect to the wheel shaft.
Direction, the operating body is provided so as to be movable within a setting range, and when the operating body is rotated in the locking operation direction between the lock body and the operating body, the lock body is moved downward. After that, there are provided cam means for maintaining the lowered posture and engagement means for raising the lock body and then maintaining the raised posture when the operating body is rotated in the unlocking direction. The engaging means includes an engaged portion formed around the cutout portion provided on the operating body side and a protruding portion on the lock body side.
It consists engaging tabs provided out, lock body operating body
An elastic body elastically biases so as to abut is provided, when by rotating the operating body in the unlocking direction, after the lock member pushes up the engagement piece is raised dynamic by the cam of the operating side, the Contact the engaging part with the engaging piece to protect the operating body from the elastic body.
And move it, and the engagement piece is opposed to the notch
Thus, the operating body is moved by the elastic force of the elastic body, the engaging piece is engaged with the engaged portion through the cutout portion, and the rising posture of the lock body is maintained. Article carrier with wheel device. 2. The main body comprises a back panel body, two side panel bodies and a base panel body, and the back panel body and the two side panel bodies are arranged in a gate shape in plan view, and at least One side panel body is foldably connected to the back panel body, and the base panel body is attached to the lower part of one panel body so that the base panel body stands upright and sideways with its proximal end. 2. The article conveyor with wheel device according to claim 1, further comprising base panel body locking means that acts on the other panel body side.