JPH11222004A - Article conveying tool with wheel device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain both postures at the locking operation and unlocking operation of a manipulator of a wheel lock means by simplifying the structure. SOLUTION: By rotating a manipulator 65 in the locking operational direction A at stopping time, a cam means 73 is sufficiently affected in accordance with the rotation and the lowering posture of a lock body 61 can be maintained, i.e., the lock operating posture of the manipulator 65 can be maintained at the locking operation. At the running time, the manipulator 65 is rotated in the unlocking direction B. By unlocking the lock operation of the cam means 73, an engagement piece 64 is pushed up by a cam body 71 at the side of the manipulator 65 so as to raise the lock body 61 and unlocking it to a wheel 59. An engaged portion 70 moved in accordance with the rotation is engaged with the engagement piece 64 to maintain the raising posture of the lock body 61.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article transfer with a wheel device used for storing and storing a large number of articles mainly handled in a store or the like and, if necessary, loading and transporting them on a truck or the like. It is about tools.

[0002]

2. Description of the Related Art Conventionally, as an article transporter of this type, for example, a simple article transporter disclosed in Japanese Utility Model Laid-Open Publication No. 56-63666 has been provided. In other words, the simple article carrier has a central vertical frame (back panel body) and two side frames (side panel bodies) facing each other in front of the left and right sides of the vertical frame in a U-shape in plan view. A rectangular loading frame (base panel body) is provided between the left and right side frames, and a moving wheel is provided on the left and right side frames. And the loading frame and the left and right side frames,
In the state where it can be swingably switched to the folded position superimposed on the front side of the vertical frame, it is pivotally connected to the front of the vertical frame and both left and right ends, and the pivotal connection between one side frame and the vertical frame is ,
A lock mechanism is provided for fixing and holding and releasing the side frame in a predetermined extended posture.

[0003] According to this conventional configuration, the frames can be used by setting both side frames in a predetermined extending posture, and the vehicle can travel through the moving wheels by applying a pushing and pulling force. In addition, by swinging the loading frame and the other side frame into a folded position superimposed on the front side of the vertical frame, the storage position can be folded into an L-shape as a whole, and thus the L-shape can be obtained. By running the simple goods carrier, multiple simple goods carriers can be compactly arranged in a stacked state in front, back, left and right. In this aligned state, they can be stored in the corners of the room or loaded on the truck bed. Can be.

[0004] Since the moving wheels are of the idle type, the stop position of the simple article carrier may be unexpectedly disturbed when the use traveling is stopped or in the storage posture described above. For this purpose, conventionally, a foot-operated wheel locking means is provided in the portion of the moving wheel. At this time, the wheel lock means is configured so that only the posture of the foot operation body at the time of the lock operation is maintained (fixed).

[0005]

However, according to the above-mentioned conventional configuration, the posture of the foot operation member at the time of unlocking is not maintained (fixed). You may switch to the posture. In particular, when the L-shaped simple article carrier is running and the stepping operation body is unexpectedly switched to the lock operation posture, the simple article carrier may fall down.

Therefore, the invention according to claim 1 of the present invention provides an article transporter with a wheel device in which the operating body of the wheel locking means can maintain both the attitude during the locking operation and the attitude during the unlocking with a simple structure. The purpose is to provide.

[0007]

In order to achieve the above-mentioned object, according to the present invention, there is provided an article-conveying device with a wheel device, wherein the wheel device is 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 some of the wheel devices include a wheel attached to the bracket. A wheel lock means for preventing rotation of the wheel is provided. The wheel lock means is provided on the bracket side so as to be able to move up and down, and a lock body which can be freely pressed and separated from the wheel by its downward movement, and an operation provided rotatably on the wheel shaft. A cam means for maintaining the lowered posture after lowering the lock body when the operation body is rotated in the lock operation direction between the lock body and the operation body; body When it is rotated in the unlocking direction,
An engaging means for maintaining the ascending posture after the lock body is moved upward is provided, and the engaging means includes an engaged portion formed around a notch provided on the operation body side, When the operating body is rotated in the unlocking direction, the engaging body is pushed up by the cam body on the operating body to move the lock body upward, and then the engaging piece is provided. Is engaged with the engaged portion through the notch to maintain the ascending posture of the lock body.

Therefore, according to the first aspect of the present invention, when the article carrier is stopped, the operating body is rotated in the lock operation direction. Then, first, the cam means operates, whereby the lock body is moved downward to press against the wheels, thereby performing the lock operation. With the subsequent rotation of the operating body, the cam means is sufficiently operated, thereby maintaining the lowered posture of the lock body. Thus, the lock operation posture of the operating body at the time of the lock operation can be maintained by the cam means. When the article carrier is run from such a stop, the operating body is rotated in the lock release direction. Then, first, the lock operation by the cam means can be released, and the engagement piece is pushed up by the cam body on the operation body side to move the lock body upward, thereby unlocking the wheel. Next, the engaged portion, which has been moved along with the rotation of the operating body, is engaged with the engaging piece, whereby the lock body is maintained in the raised posture. At that time, the portion of the engaging piece located behind the engaged portion has moved,
It is located through the notch. Thereby, the unlocking posture of the operating body at the time of unlocking can be maintained by the engaging means including the engaging piece and the engaged portion.

According to a second aspect of the present invention, there is provided an article-conveying device with a wheel device according to the first aspect of the present invention.
The main body includes a back panel body, two side panel bodies, and a base panel body. 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 provided. 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 stand upright and sideways with its close end, and this base panel body is attached to the other panel body side. The present invention is characterized in that a base panel locking means is provided which acts on the base panel body.

Therefore, according to the second aspect of the present invention, the article transporting device is configured to open both side panels at right angles to the back panel, and to lay down the base panel horizontally, and When the locking means performs a locking action, it can be used. Also, 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 to follow the back panel body side, thereby providing a flat surface. L-shape or I
It can be folded into a letter shape and stored. At that time, for example, L
When running the article carrier folded in the shape of a letter,
The operation body is not accidentally switched to the lock operation posture.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
Description will be made based on the drawings. As shown in FIGS. 5 and 6, the main body 9 of the article transport device 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 that are opposed to each other in front of the left and right sides of the back panel body 10 are disposed in a gate shape in plan view. Side panel body 20
The base panel body 30 is provided between the lower part of the base panel 30 and the base panel body 30.

The rear end of the base panel body 30 is connected to the lower end of the back panel body 10 via the hinge 2 so that the base panel body 30 swings between a standing posture along the back panel body 10 and a horizontal sideways posture. It is free to move. The adjacent portions of the back panel body 10 and the two side panel bodies 20 are connected by the connecting tool 3, and at this time, at least one, that is, the right side panel body 20 rotates along the back panel body 10. Free (foldable).

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

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 or the like, and a lower frame 12 connecting lower ends of the outer frame 11.
A plurality of pipe-shaped vertical members 13 disposed between the ceiling rod portion 11a and the lower frame 12 of the outer frame 11, and a plurality of pipe-shaped vertical members 13 disposed between the vertical rod portions 11b of the outer frame 11. It is composed of a cross member 14 and the like. Rear wheel devices 50 to be described later are attached to the lower surfaces at both ends of the lower frame 12.

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

The frame body 31 of the base panel body 30
Is a window frame-shaped outer frame 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 32, a pair of front and rear left and right frames 32b of the outer frame 32, and left and right. It is formed in a flat frame shape from a plurality of front and rear members 34 provided between the members 33. Then, the base panel body 3 is molded with the resin 36 in a state having a large number of penetration portions 35.
0 is configured. In addition, the base panel body 30 lying down
The mounting surfaces 37 are formed by the upper surfaces of the lower frames 12 and 22 which are received by the horizontal plate portions.

On both sides at the front of the base panel body 30, it acts on the rear vertical rod portion 21b of the side panel body 20 in the upright posture, and acts 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 by, for example, driving a rivet from below after being in contact with the base panel body 30 from below.

A lock pin 42 inserted through the main body member 41 and slidable in the left-right direction is urged by a tension spring 43 so as to protrude in the engaging direction (outward). 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 section 42a can be confirmed from above and the operation section 42a can be operated.

A stay 4 is provided between the front ends of the side panel bodies 20 for maintaining the interval and preventing the collapse of the load. 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.
1b is provided with a second holder 6 to which the free end of the stay 4 can be freely 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 configuration, and will be described below with reference to FIGS. I do.

The wheel devices 50 and 51 are of a caster type, and are fixed to the main body 9 side, ie, both ends of the lower frame 12 in the back panel body 10 and the mounting plate 25 in the side panel body 20 by bolts and nuts. A mounting seat 52 is attached to the mounting seat 52. A bracket 54 is pivotally provided on the mounting seat 52 via a vertical pin 53 or the like. The bracket 54 has a gate-shaped frame shape, and has a wheel 5 through a wheel shaft 58 inserted between its leg plates.
9 is provided rotatably. Here, a bolt / nut type is adopted as the wheel shaft 58.

The front wheel device 51 serving as at least a part of the wheel device is provided with a wheel locking means 60 for preventing the rotation of the wheel 59 on its bracket 54. That is, the wheel locking means 60 is
The lock body 61 comprises a lock body 61 which is provided on the side so as to be able to move up and down and which can be pressed and separated from the wheel 59 by its lowering movement, and an operation body 65 which is rotatably provided on the wheel shaft 58.

The lock body 61 is made of an inverted L-shaped plate, and its upper horizontal plate portion 61A is located in the upper part of the bracket 54 and is opposed to the wheel 59 from above. The middle portion of the vertical plate portion 61B of the lock body 61 is formed in a portion inclined outward toward the lower side, and the inclined portion is located in a rectangular hole 55 formed in one of the leg plates of the bracket 54 in the vertical direction. Thus, the lower portion of the vertical plate portion 61B of the lock body 61 is located outside one leg plate portion, and the lower portion is formed with a vertically long hole 62 through which the wheel shaft 58 is inserted.

As a result, the lock body 61 is
And is guided by the wheel shaft 58 so as to be movable up and down. When the lock body 61 is lowered, the horizontal plate portion 61A is
9 is brought into contact with (pressed against) the upper portion of the lock 9, whereby a lock operation is performed. Further, the rise of the lock body 61 causes the horizontal plate portion 6 to move.
When the lock 1A is separated from the upper portion of the wheel 59, the lock is released.

The operating body 65 is externally fitted to the wheel shaft 58 through a through hole 66 formed at an intermediate portion in the front-rear direction, so that the operating body 65 is rotatable around the wheel shaft 58 (seesaw movement is possible). Is provided. On the upper part of the operation body 65, a stepping-type lock operation section 67 and a lock release section 68 are provided separately in front and rear.

When the operation body 65 is rotated in the lock operation direction A between the lock body 61 and the operation body 65, the cam that moves the lock body 61 down and then maintains the lowered posture. Means 73 are provided.

That is, a plate-like cam piece 63 projects outward from the lower end of the lower part of the lock body 61, which is located outside one leg plate. In the middle and lower part of the operating body 65 in the front-rear direction,
A lower arcuate cam body 69 that is gradually separated from the axis of the wheel shaft 58, that is, the axis of the through hole 66, is provided closer to the lock operation unit 67, and the lower arcuate cam body 69 is
The cam piece 63 is opposed to the cam piece 63 from above and is freely contactable.

The cam piece 63 and the lower circular cam body 69
Thus, an example of the cam means 73 is configured. Then, the operating means 6 at the time of the locking operation is
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,
After the lock body 61 is moved upward by the cam body on the operation body 65 side, an engagement means 74 for maintaining the raised posture is provided. The engaging means 74 includes an engaged portion 70 formed on the operation body 65 side and an engagement piece 6 provided on the lock body 61 side.
4 constitute one example.

That is, an engagement piece 64 is provided above a portion of the lock body 61 located outside one leg plate.
Are projected outward. Here, a step-shaped engaging portion 64a is formed at an intermediate position on the outer surface of the engaging piece 64.

At an intermediate portion and an upper portion of the operation body 65 in the front-rear direction, as the lock operation portion 67 is closer, the wheel shaft 5
8, that is, an upper-sided arc-shaped cam body that is gradually separated from the axis of the through hole 66 (an example of a cam body on the operation body side)
The upper arc-shaped cam body 71 is opposed to the protruding piece 64 from below and is freely contactable. A cut-out portion 72 is formed at a corner of the lock operation portion 67 on an extension of the upper arc-shaped cam body 71, and around the notch portion 72, that is, between the upper arc-shaped cam body 71 and the lock operation portion 67. The engaged portion 7
0 is formed.

The operating body 65 is configured to be movable within a set range in the axial direction with respect to the wheel shaft 58, and an elastic body (leaf spring) interposed between the operating body 65 and the outer end of the wheel shaft 58. , A coil spring, etc.) 57 so that the vertical plate portion 61B
It is elastically biased so as to be brought 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 circular cam body 71 to move the lock body 61 upward.
The engaged portion 70 can be brought into contact with the engagement piece 64. When the operating body 65 is further rotated in the unlocking direction B, the engaging portion 64
Thus, the operating member 65 moves on the outer surface of the engagement piece 64, and the operating body 65 is moved outward against the elastic body 57.
Then, the engaging piece 64 is opposed to the engaging portion 64a,
The engaging piece 64 is moved by the elastic force of the elastic body 57 to the engaging portion 6.
4a is elastically engaged. As a result, the rotation of the operating body 65 in the lock operation direction A is prevented, so that the lock body 61 is configured to maintain the raised posture.

An example of the engaging means 74 is constituted by the engaging piece 64 and the engaged portion 70, and the engaging means 74 maintains the posture of the operating body 65 at the time of unlocking. Have been.

An example of the wheel lock means 60 is constituted by the parts 61 to 74 described above. The operation of the above embodiment will be described below. The article conveying tool 1 assembled as described above opens the right side panel body 20 at right angles to the back panel body 10 and horizontally moves the base panel body 30 through the hinge tool 2. By swinging down and placing it on the lower frame 22 of the side panel body 20 and locking the base panel body locking means 40, it becomes usable as shown in FIG. 5 and FIG.

In this way, the load can be loaded on the mounting surface 37. If the locking operation is forgotten at that time, the operator who loads the load can use the operation hole 3.
By visually observing the operation portion 42a of the lock pin 42 or the like through 8, it can be easily confirmed that the vehicle is in the unlocked state, that is, the lock operation has been forgotten, and the locking operation is performed.

After loading the cargo and carrying it as intended,
The stay 4 is first removed from the second holding tool 6 of the article transporting tool 1 which has been unloaded after unloading. Next, the mounting surface 37
After the lock pin 42 is pulled out from the side via the operation portion 42a, the base panel body 30 is turned upward (standing) via the hinge 2 so as to be along the back panel body 10.

Then, the lock pin 42 exposed on the back surface side of the base panel body 30 is moved outward again to protrude rearward of the rear vertical rod portion 21b, so that the lock operation can be performed. Next, the right side panel body 20 is connected to the connector 3.
It is rotated around the axis of the pin via, for example, the pin axis and is made to follow the back panel body 10 side. As a result, the article carrier 1 is
As shown in (2), it can be folded and stored in an L-shape in plan view. The lock pin 42 can be unlocked by moving the lock pin 42 inward by the reverse operation, so that the base panel body 30 can be slid horizontally and horizontally as described above.

When the article carrier 1 is stopped, the operation body 65 is rotated in the lock operation direction A,
3, the posture of the operation body 65 is maintained during the lock operation. In other words, the lock operation section 67 of the operation body 65 is stepped on, and the operation body 65 is rotated around the wheel shaft 58 in the lock operation direction A. Then, first, the cam piece 63 is pushed down by the lower arcuate cam body 69, whereby the lock body 61 is moved downward 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.
Is pressed into contact with the upper part, thereby performing the locking operation as shown by the imaginary lines in FIGS.

Next, the end of the lower arcuate cam body 69 which has been moved with the rotation of the operating body 65 is caused to act on the cam piece 63, and as shown in FIG. To maintain. Thus, the lock operation posture of the operation body 65 at the time of the lock operation can be maintained by the cam means 73 including the cam piece 63 and the lower arc-shaped cam body 69, and unexpected running at the time of stoppage can be prevented.

When the article transporting 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 operation body 65
The operator releases the lock release portion 68 to rotate the operating body 65 around the wheel shaft 58 in the lock release direction B. Then
First, while the lock operation by the cam means 73 is released, the engaging piece 64 is pushed up by the upper arc-shaped cam body 71, whereby the unlocked lock body 61 is moved into the rectangular hole 55 and the wheel shaft 58. 3 to move the horizontal plate portion 61A away from the upper portion of the wheel 59, thereby releasing the lock as shown by the solid line in FIG.

Next, 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 the operating body 65 is moved outward against the elastic body 57. Move. Then, by making the engagement piece 64 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. Thereby, the rotation of the operating body 65 in the locking operation direction A can be prevented, and the rising posture of the locking body 61 is maintained as shown by the solid line in FIG. At this time, the portion of the engaging piece 64 located behind the engaged portion 70 has moved,
Through (within the notch 72).

As described above, the engaging piece 64 and the engaged piece 70
The posture of the operating body 65 at the time of unlocking can be maintained by the engaging means 74 including
Can be prevented from unexpectedly switching to the posture at the time of the lock operation. Therefore, for example, when the article carrier 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 fear that the article carrier 1 falls down.

In the above-described embodiment, the type in which the wheel locking means 60 is provided on the front wheel device 51 is shown.
0 may be provided, or all the wheel devices 50 and 51 may be provided with wheel locking means 60.

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

In the above embodiment, the main body 9 is L
Although a form that can be folded into a letter shape is shown, it may be a form that can be folded into an I-shape by making both side panel bodies 20 rotatable. Further, the main body 9 may be of a type that is fixed and 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 part of the back panel body 10 so as to be able to stand upright and sideways. A type in which the base panel body 30 is attached so as to be capable of standing upright and sideways may be used.

In the above-described embodiment, as a constituent member of the base panel body 30, a resin-molded mesh type is shown. However, this is a base plate having no through portion 35, 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, when the operation body is rotated in the locking operation direction when the article carrier is stopped, first, the cam means operates, thereby lowering the lock body. Then, the wheels are pressed against each other, and the locking operation is performed. Then, the cam means is sufficiently operated in accordance with the rotation of the operating body, so that the lowered posture of the lock body can be maintained. Thus, the lock operation posture of the operating body at the time of the lock operation can be maintained by the cam means, and unexpected running when the article transporting device stops can be prevented. By rotating the operating body in the unlocking direction when running the article carrier from such a stop, the lock operation by the cam means can be first released, and the projecting piece is pushed up by the cam body on the operating body side to lock the locking body. Is moved upward, thereby unlocking the wheels. Next, the engaged portion, which has been moved with the rotation of the operating body, can be engaged with the engaging piece, so that the lock body can be maintained in the raised posture. At that time, the portion of the engagement piece located behind the engaged portion has moved can be located through the notch. Thus, the unlocking posture of the operating body at the time of unlocking can be maintained by the engagement means, and it is possible to prevent the operating body from unexpectedly switching to the lock operating posture during traveling. in this way,
It is possible to provide a wheel lock means capable of maintaining both postures during a lock operation and a lock release state with a simple structure.

According to the second aspect of the present invention,
The article transporter can be used by opening both side panel bodies at right angles to the back panel body, and horizontally laying down the base panel body and locking the base panel body locking means. Can be in a state. Further, the article transporting device unlocks the base panel body locking means, raises the base panel body upward to follow the panel body, then locks the base panel body locking means to the panel body side, and By rotating the device along the back panel body 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 carrier is folded in an L-shape, the operating body does not unexpectedly switch to the lock operation posture, and the article carrier can travel without fear of falling down.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of the present invention, and is a side view of a wheel device at the time of unlocking of an article transporting device with a wheel device.

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

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

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

FIG. 5 is a perspective view in a use mode of the article transporter with the wheel device.

FIG. 6 is a plan view of the use mode of the article transporter with the wheel device.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Article conveyance tool 4 Stay 9 Main 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 part 50 Rear wheel device 51 Front part Wheel device 52 mounting seat 53 vertical pin 54 bracket 55 rectangular hole 57 elastic body 58 wheel shaft 59 wheel 60 wheel locking means 61 lock body 61A horizontal plate portion 61B vertical plate portion 62 long hole 63 cam piece 64 engagement piece 64a engagement Part 65 Operation body 67 Lock operation part 68 Lock release part 69 Lower arcuate cam body 70 Engaged part 71 Upper arcuate cam body (cam body on the operation body side) 72 Notch part 73 Cam means 74 Engagement means A Lock operation Direction B Lock release direction

Claims (2)

[Claims] 1. An article carrier having a wheel device provided at a plurality of lower portions of a main body, wherein the wheel device is provided rotatably on a bracket attached to the main body side via a wheel shaft. It is composed of wheels, and at least some of the wheel devices are provided on their brackets with wheel locking means for preventing rotation of the wheels, and the wheel locking means is provided on the bracket side so as to be able to move up and down, and the wheels are moved downward by the downward movement. It consists of a lock body that can be freely pressed and separated, and an operating body that is rotatably provided on the wheel shaft. When the operating body is rotated in the lock operation direction between the lock body and the operating body,
Cam means for maintaining the lowered posture after moving the lock body, and engaging means for maintaining the raised posture after moving the lock body when the operating body is rotated in the unlocking direction. The engagement means comprises an engaged portion formed around a notch provided on the operation body side and an engagement piece provided on the lock body side, and unlocks the operation body. When the lock body is rotated in the direction, the engagement piece is pushed up by the cam body on the operation body side to move the lock body upward, and then the engagement piece is engaged with the engaged portion through the cutout portion, and the lock body is rotated. An article conveyance device with a wheel device, wherein the article conveyance device is configured to maintain a rising posture of the vehicle. 2. 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. 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 stand upright and sideways with its close end. 2. The article conveying device with a wheel device according to claim 1, further comprising a base panel body locking means acting on another panel body side.