JP2006111083A - Article transport tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an article transport tool capable of efficiently carrying out height change work for an intermediate shelf even when the intermediate shelf constituted of a heavy solid timber is used. <P>SOLUTION: The tool includes a base substrate having wheels for traveling, frames respectively installed on both the right and left sides of the base substrate, and the intermediate shelf constituted of a solid timber which is supported so as to adjust the height and is not divided into a front/rear directions. A support member installed on the front side and the rear side of the respective frames and a locking portion provided on both the front/rear side edges of the intermediate shelf are provided in order to support the intermediate shelf. Besides, there are provided front side locked holes formed at a plurality of upper/lower portions of the support member on the front side, a guide groove formed at the support member on the rear side, and rear-side locked grooves formed at a plurality of upper/lower portions so as to be continuous to the guide groove. The guide groove is positioned more rearward than the rear-side locked grooves, the rear-side locked grooves are inclined downward from the rear side to the front side, thus locking the rear side locking portion of the intermediate shelf at the lower edge portion of the inclination. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an article transport tool used for storing and transporting, for example, potted garden plants.

For example, the following Patent Document 1 is known as this type of article transporter. This article transporter includes a base body having moving wheels, a frame body attached to both sides of the base body, an intermediate shelf detachably provided between both frame bodies, and a front and rear supporting the intermediate shelf. The front support member has a plurality of front locking holes formed at a plurality of positions on the front support member, and the rear support member has a rear cover that is inclined downward from the front to the rear. Locking portions are formed at a plurality of upper and lower portions, and guide grooves communicating with these rear locked portions are formed. In addition, a locking portion that engages with the front locked hole and the rear locked portion is formed in the intermediate shelf.
Japanese Patent No. 3309548

  As this intermediate shelf, a front intermediate shelf and a rear intermediate shelf which are divided into two in the front and rear are preferably used. Of these, for example, when changing the height of the front intermediate shelf, remove the front locking portion from the front locked hole, and pull the front intermediate shelf forward (front side) to Pull out the position locking part from the rear locked part to the guide groove. In this state, the front intermediate shelf is moved up and down to the target height, and then the rear locking portion is engaged with the rear locked portion of the target height.

  If the intermediate shelves divided in the front and rear directions are used in this way, the weight of each intermediate shelf is light, and the work for changing the height becomes easy. However, after changing the height of the front intermediate shelf, it is necessary to change the height of the rear intermediate shelf as well, and the same operation needs to be performed twice.

  If a single-sheet intermediate shelf that is not divided into front and rear is used, the weight of the intermediate shelf is heavy and the height changing operation becomes difficult. Therefore, there has been a demand for an article transporter that can reduce the burden on the operator's weight even if a heavy single-sheet intermediate shelf is used, and can easily perform the height changing operation.

  The present invention has been made in the background as described above, and in particular, to provide an article transporter that can efficiently change the height of an intermediate shelf even when a heavy single-sheet intermediate shelf is used. Is an issue.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, the article transporter of the present invention is:
A base substrate having wheels for movement;
Frames respectively installed on the left and right sides of the base substrate so as to form an article storage space having the base substrate at the bottom and the front-rear direction being open,
An intermediate shelf of a single plate that is supported so as to be height-adjustable in the article storage space and is not divided in the front-rear direction;
In order to support the intermediate shelf, a front support member installed on the front side of each frame,
A rear support member installed on the rear side of each frame, and
Front side locking portions provided at both ends of the front portion of the intermediate shelf;
A rear locking portion provided at both ends of the rear portion of the intermediate shelf;
A front-side locked hole that is formed at a plurality of positions on the front-side support member and is engageable with a front-side locking portion of the intermediate shelf;
A guide groove formed in the rear support member so that the rear locking portion can move in the vertical direction;
A rear-side locked groove formed at a plurality of positions on the rear-side support member so as to be continuous with the guide groove;
The guide groove is located on the rear side of the rear locked groove, the rear locked groove is inclined downward from the rear side to the front side, and the intermediate shelf at the lower end of the inclination. The main feature is that the rear side locking portion is locked.

  In this way, the intermediate shelf is formed with locking portions at both front and rear ends, and the intermediate shelf is supported by engaging each locking portion with the locked portion of the support member. According to the present invention, the front support member and the rear support member have different shapes of the locked portions, the front support member has a hole shape, and the rear support member has a groove shape. Since the locked portions are formed at a plurality of positions on the upper and lower sides, the intermediate shelf can be supported in accordance with the target height. The rear support member of the present invention is formed with a guide groove having a width that allows the rear latching portion of the intermediate shelf to move in the vertical direction, and a rear latching groove communicating with the guide groove. The guide groove is located on the rear side of the rear locked groove, and the rear locked groove is inclined downward from the rear side to the front side. When adjusting the position of the intermediate shelf, first the front locking portion is removed from the front locked hole, and then the rear locking portion is removed from the rear locked groove. After that, by pushing the rear side latching portion of the intermediate shelf against the rear side of the guide groove, a part of the weight of the intermediate shelf is deposited on the rear support member, and in this state, the rear side latching portion is slid in the vertical direction. . Then, by pulling the intermediate shelf forward (front side) in the rear-side locked groove at the desired height, the rear-side locking portion of the intermediate shelf slides down and is locked to the inclination of the rear-side locked groove. The In this way, the heavy duty single sheet intermediate shelf is used, but the rear support member receives a part of the weight of the intermediate shelf when the height is changed. You don't feel that much and work becomes easier. Further, since the intermediate shelf is a single plate, the height changing work needs to be performed only once, and the working efficiency is high.

Further, the front-side locked hole has an enlarged hole portion, and a drop hole portion that is continuous with the lower portion of the enlarged hole portion and has a smaller diameter than the enlarged hole portion,
The front side latching portion of the intermediate shelf is provided so as to be capable of withdrawing in the left-right direction, and has an operation portion for operating the withdrawal.
A front-side enlarged portion that is larger in diameter than the drop-in hole portion and can be inserted into the enlarged hole portion is formed at the tip of the front-side locking portion,
When the intermediate shelf is supported, the front-side locking portion is operated so as to protrude in the left-right direction, so that the front-side enlarged diameter portion passes through the enlarged hole portion, and then the intermediate shelf is pushed down. As a result, the front locking portion is dropped into the drop hole portion.
Further, a rear enlarged portion having a diameter larger than the width of the rear locked groove and the guide groove is formed at the front end of the rear locking portion of the intermediate shelf, and the rear locked groove and The rear side enlarged diameter portion prevents the rear side locking portion from falling out of the guide groove.

  With the above configuration, the article transporter of the present invention can lock the front locking portion at the drop hole portion, and the front enlarged portion is formed at the front end of the front locking portion. It can prevent that a stop part falls out from a fall hole part. Since the diameter-enlarged portion is similarly formed at the tip of the rear locking portion, it is possible to prevent the rear locking portion from falling out of the rear locked groove. When adjusting the height of the intermediate shelf, first lift the front side of the intermediate shelf slightly to move the front locking part to the enlarged hole of the front support member, and then operate the operation part by hand to The stop portion is retracted from the enlarged hole portion together with the front side enlarged portion.

In addition, the article carrier of the present invention is
A base substrate having wheels for movement;
Frames respectively installed on the left and right sides of the base substrate so as to form an article storage space having the base substrate at the bottom and the front-rear direction being open,
An intermediate shelf of a single plate that is supported so as to be height-adjustable in the article storage space and is not divided in the front-rear direction;
In order to support the intermediate shelf, support members respectively installed on the front side and the rear side of each frame,
A locking portion that is provided at each of the front side end and the rear side end of the intermediate shelf, and is capable of moving in and out in the left-right direction,
An enlarged diameter portion formed at the tip of the locking portion and having a larger diameter than the locking portion;
An enlarged hole portion formed at a plurality of upper and lower locations in the support member, through which the enlarged diameter portion can be inserted,
A locked groove formed in the support member so as to be continuous with a lower portion of the enlarged hole portion,
A guide groove formed in the support member so as to be continuous with the enlarged hole portion and the locked groove;
The guide groove is located outside the enlarged hole portion and the locked groove, the locked groove is inclined downward from the outside to the inside, and the lower end of the slope has the intermediate shelf. The main feature is to lock the locking portion.

  According to the said invention, the supporting member is formed symmetrically in the front-back direction, and the height change operation of the intermediate shelf can be performed from both front and rear sides. For example, when changing the height from the front side, first, lift the front side slightly to remove the locking part from the locked groove, and then operate the locking part to retreat from the enlarged hole part together with the enlarged diameter part. To do. Thereafter, the rear support member is removed from the locked groove. Then, by pressing the latching portion of the intermediate shelf against the rear side of the guide groove, a part of the weight of the intermediate shelf is deposited on the rear support member, and in this state, the latching portion is slid in the vertical direction. Then, by pulling the intermediate shelf forward (near side) in the locked groove of the target height, the locking portion of the intermediate shelf is dropped and locked to the inclination of the locked groove. By doing so, the support member receives a part of the weight of the intermediate shelf while sliding, so that the work becomes easy. Further, since the front and rear support members are formed symmetrically, the same operation can be performed from the rear side.

The best mode for carrying out the present invention will be described below with reference to the drawings.
First, a first embodiment of an article transporter according to the present invention will be described with reference to FIG. As shown in the figure, the article carrier 1 includes a base substrate 2 having moving wheels 13 and frame bodies 3 and 4 installed on both the left and right sides of the base substrate 2, with the base substrate 2 as the bottom and open in the front-rear direction. An article storage space S is formed. Front support members 6a and 6b are installed on the front sides of the left and right frame bodies 3 and 4, respectively, and rear support members 7a and 7b are installed on the rear side, and a plurality of intermediate shelves 5 are formed by these support members 6a to 7b. Is supported for height adjustment.

  2 and 3 show the right frame 4 and the support members 6a and 7b. Hereinafter, the left frame 3 has the same structure that is symmetric with respect to the right frame 4, and thus the description thereof is omitted. As shown in FIGS. 2 and 3, the front side support member 6a has front side locking holes 8 formed at a plurality of positions in the vertical direction. The front support member 6a uses a groove-shaped member, and the outer surface in the left-right direction is open. The front locked hole 8 is formed on the inner side surface of the front support member 6a. As shown in FIG. 3, the front-side locked hole 8 is composed of an enlarged hole portion 8A and a drop hole portion 8B provided continuously therebelow, and a front-side lock described later in the drop hole portion 8B. The pin 16a is locked.

  On the other hand, guide grooves 9 are formed on the rear support member 7a in the vertical direction, and rear locked grooves 10 are formed at a plurality of upper and lower portions so as to be continuous with the guide grooves 9. The guide groove 9 is located on the rear side of the rear locked groove 10, and the rear locked groove 10 is formed so as to be inclined downward from the rear side to the front side. Further, the lower end portion of the rear locked groove 10 and the lower end portion of the drop hole portion 8B are formed so that the corresponding heights are equal to support the intermediate shelf horizontally.

  As shown in FIG. 4, the intermediate shelf 5 is provided with a front locking pin 16 (an example of a front locking portion) on both sides of the front, and a rear locking pin 19 (rear locking) on both sides of the rear. An example of a part) is installed. An enlarged view of these locking pins is shown in FIG. As shown in the figure, a through hole 30 is formed in the horizontal frame 21 of the intermediate shelf 5, and a front locking pin 16 is inserted into the through hole 30 so that it can be moved in and out in the left-right direction. A front-side enlarged diameter portion 17 for preventing drop-out is formed at the tip, and an operation portion 18 for performing a withdrawal operation is provided. The rear side locking pin 19 is fixed to the horizontal frame 21 of the intermediate shelf 5, and a rear side enlarged diameter portion 20 for preventing falling off is formed at the tip.

  In the state where the intermediate shelf 5 is supported, as shown in FIGS. 3A (1) and 5, the front locking pin 16 is dropped into the drop hole 8B, and the rear locking pin 19 is It is locked at the lower end of the rear locked groove 10. When adjusting the height of the intermediate shelf 5, the front side of the intermediate shelf 5 is slightly lifted to move the front locking pin 16 from the drop hole 8 </ b> B to the enlarged hole 8 </ b> A. By operating, the front side locking pin 16 is removed from the enlarged hole portion 8 </ b> A together with the front side enlarged diameter portion 17. Thereafter, the rear locking pin 19 is removed from the rear locked groove 10, and the intermediate shelf 5 is pushed backward as shown in FIG. 3A (2), so that the rear locking pin 19 is formed on the inner surface IP of the guide groove 9. Abut. That is, the intermediate shelf 5 leans against the rear support member 7a. If the rear locking pin 19 is slid in the vertical direction in this state, a part of the weight of the intermediate shelf 5 is deposited on the rear support member 7a and can be slid in the vertical direction by controlling the pressing force. It is possible to work without feeling much of the weight of the intermediate shelf 5. As shown in FIG. 3A (3), when the intermediate shelf 5 is pulled forward after moving to the rear side locked groove 10 of the target height, the rear side locking pin 19 is moved to the rear side locked groove 10. It slides into the slope and is locked at the lower end. Thereafter, the front portion of the intermediate shelf 5 is moved to the enlarged hole portion 8A having the target height, and the operation portion 18 is manually operated to insert the front locking pin 16 together with the front enlarged portion 17 into the enlarged hole portion 8A. Then, by pushing down the front portion of the intermediate shelf 5, the front locking pin 16 is dropped into the drop hole portion 17 to be locked.

  As described above, in this embodiment, the guide groove 9 of the rear support member 7a is positioned rearward of the rear locked groove 10, and the rear locked groove 10 is inclined downward from the rear side to the front side. ing. In this way, when the height is adjusted, the intermediate shelf 5 is pushed rearward so that the friction between the inner surface IP of the guide groove 9 and the rear locking pin 19 is utilized to reduce the weight of the intermediate shelf 5. The rear portion of the intermediate shelf 5 can be slid up and down by allowing the rear support member 7a to receive the portion and controlling the pressing force. In addition, since the rear locking pin 19 can be locked by slightly pulling the intermediate shelf 5 forward in the rear locked groove 10 having the target height, the burden on the operator can be reduced. Furthermore, since the intermediate shelf 5 is a single plate, the work can be completed at once, and the work efficiency is high.

  On the other hand, since the rounded portion R is provided at the portion where the rear locked groove 10 and the guide groove 9 are connected, the rear locking pin 19 can be smoothly slid into the rear locked groove 10. . In addition, an opening OP that opens above the rear support member 7a is formed at the upper end of the guide groove 9, and is used to insert the intermediate shelf 5 from the outside when assembling the article transporter.

  Next, returning to FIG. 2, the frame 4 will be described. The frame 4 includes vertical columns 11 b and 12 b and a plurality of cross members 14, and the front support member 6 a and the rear support member 7 a are attached so as to intersect with the plurality of cross members 14. In this way, when the frame 4 is manufactured, the support members 6a and 7a can be attached (welded) along the cross member 14, so that when the design is changed, the position can be easily changed in the front-rear direction. On the other hand, an intermediate member 15 for reinforcing the cross member 14 is attached between the vertical columns 11a and 12b. Moreover, a pipe material is used for the vertical struts 11b and 12b.

  FIG. 4 is a three-sided view of the intermediate shelf 5, and FIG. 6 is an enlarged view of a main part of the intermediate shelf 5. The intermediate shelf 5 includes a horizontal frame 21, front and rear frames 31, a plurality of intermediate members 32, and a plate material 22. As described above, the horizontal frame 21 is provided with the front locking pins 16 and the rear locking pins 19. Yes. 6A and 6B, the front and rear frame 31 has a shape shown in FIGS. 6A and 6B, a support portion 31a for supporting the plate material 22, a load spill prevention portion 31b for preventing the stored article from spilling back and forth, and the plate material 22. It is comprised from the slope part 31c which becomes diagonal with respect to. And the support part 31a is notched in the edge part of the front-back frame, and the horizontal frame 21 is inserted. On the other hand, the intermediate member 32 has a square pipe shape, and both ends are fixed to the horizontal frame 21. The plate 22 is fixed to the horizontal frame 21 by rivets 33 (FIG. 4).

  On the other hand, the base substrate 2 includes a horizontal frame 23, front and rear frames 34, a plurality of intermediate members 36, an angle member 37, a plate member 45, and a wheel mounting substrate 24 as shown in FIG. Thus, since the base substrate 2 includes the intermediate member 36 attached in the left-right direction and the angle member 37 attached in the front-rear direction, the base substrate 2 has sufficient strength with respect to the front-rear, left-right. Further, a wheel mounting hole 35 is formed in the wheel mounting substrate 24, and the moving wheel 13 (FIG. 1) is fixed using, for example, a bolt.

  Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, since the support members are formed symmetrically in the front-rear direction, the height changing operation of the intermediate shelf 5 can be performed from both the front and rear sides. Each support member 25 a to 25 d is formed with an enlarged hole portion 38, a locked groove 40 that is continuous with the lower portion of the enlarged hole portion 38, and a guide groove 39 that is continuous with the enlarged hole portion 38 and the locked groove 40. ing. The enlarged hole portion 38 and the locked groove 40 have a combined and integrated structure. The guide groove 39 is positioned outside the enlarged hole portion 38 and the locked groove 40, and the locked groove 40 is inclined downward from the outside to the inside. That is, taking the front side support member 25a as an example, the guide groove 39 is positioned in front of the enlarged hole portion 38 and the locked groove 40, and the locked groove 40 is inclined downward from the front side to the rear side. Yes.

  As shown in FIG. 11, the intermediate shelf 5 is provided with locking pins 27 at both front and rear ends. A through-hole is formed in the horizontal frame 21 of the intermediate shelf 5, and a locking pin 27 is inserted into the through-hole so that it can be moved in and out in the left-right direction. A diameter-expanding portion 28 is provided at the tip of the locking pin 27, and an operation portion 29 is provided for performing a left / right operation in the left-right direction. Further, the locking pin 27 is formed with a stopper 41 for preventing retraction in the left-right direction.

  More specifically, as shown in FIG. 12, the horizontal frame 21 has a square pipe shape, an inner through hole 43 is formed on the inner side surface 21a, and an outer through hole 42 is formed on the outer side surface 21b. The stopper 41 is formed between the enlarged diameter portion 28 and the operation portion 29 and protrudes perpendicular to the axial direction of the locking pin 27. An insertion hole 44 through which the stopper 41 can be inserted is connected to the inner through hole 43. The operation unit 29 includes a first operation unit 29a having a short length in the front-rear direction and a second operation unit 29b longer than the first operation unit 29a, and the first operation unit 29a and the second operation unit 29b. Is bent to make an obtuse angle. In the state in which the intermediate shelf 5 is supported, the second operation portion 29b hangs down as shown in FIG. This is because the second operation portion 29b is heavier than the first operation portion 29a and hangs downward, and the first operation portion 29a hits the lower surface of the plate member 42 and stops. Even if some force is applied in this state and the locking pin 27 is pushed inward, the stopper 41 is at an angle that does not engage with the insertion hole 44, so that the stopper 41 is applied to the inner side surface 21 a of the horizontal frame 21. It abuts and is prevented from moving inward. To move the locking pin 27 inward, as shown in FIG. 12B, the locking pin 27 is pushed up by hand until the second operating portion 29b hits the lower surface of the plate member 42. In this state, the angle is such that the stopper 41 and the insertion hole 44 engage with each other. Therefore, when a force is applied inward, the locking pin 27 moves inward together with the stopper 41. In addition, since the vertical part 29c is formed in the 2nd operation part 29b, the operation which pushes up the 2nd operation part 29b by hand, and the operation which moves inside can be performed smoothly continuously.

  In the state where the intermediate shelf 5 is supported, the front and rear locking pins 27 are locked at the lower end of the locked groove 40 as shown in FIG. When adjusting the height of the intermediate shelf 5, first, the front side of the intermediate shelf 5 is slightly lifted, and in this state, the second operation portions 29 installed on the left and right sides of the intermediate shelf 5 are operated by hand, and the locking pin 27 Is removed from the enlarged hole portion 38 together with the enlarged diameter portion 28. Thereafter, as shown in FIG. 10 (2), the intermediate shelf 5 is pushed rearward to bring the locking pin 27 into contact with the inner side surface IP of the guide groove 39. That is, the intermediate shelf 5 leans against the support member 25c. When the locking pin 27 is slid in the vertical direction in this state, a part of the weight of the intermediate shelf 5 is deposited on the support member 25c and can be slid in the vertical direction by controlling the pressing force. You can work without feeling much weight. As shown in FIG. 10 (3), when the intermediate shelf 5 is pulled forward after moving to the locked groove 40 having a target height, the locking pin 27 slides into the inclined groove 40 and moves to the lower end. It is locked at the part. Thereafter, the front portion of the intermediate shelf is moved to the enlarged hole portion 38 having the target height, and the operation portion 29 is manually operated to insert the locking pin 27 into the enlarged hole portion 38 together with the enlarged diameter portion 28. Then, the locking pin 16 is locked in the locked groove 40 by slightly pushing down the front portion of the intermediate shelf 5.

  The case where the height of the intermediate shelf 5 is adjusted from the front side has been described above. However, in the present embodiment, the support member is formed symmetrically in the front-rear direction, so the same operation can be performed from the rear side. If the stopper 41 is not provided here, when the locking pin 27 moves to the enlarged hole 38 during the height adjustment operation, the enlarged diameter portion 28 falls out together with the locking pin 27. There is a case. The reason why the stopper 41 is provided in the present embodiment is to prevent such a problem.

  As described above, in the second embodiment, the guide groove 39 of the support member is located outside the locked groove 40. Therefore, by pushing the intermediate shelf 5 when performing the height adjustment work, the friction between the inner surface IP of the guide groove 39 and the locking pin 27 is utilized, and a part of the weight of the intermediate shelf 5 is applied to the support member 25c. The locking pin 27 can be moved up and down by receiving and controlling the pressing force. Further, in this embodiment, the enlarged hole portion 38 and the locked groove 40 are combined, and by this combination, the locking pin 27 and the enlarged diameter portion 28 can be removed from both the front and rear sides. That is, it is possible to change the height from both the front and rear sides. Furthermore, since the stopper 41 is formed on the locking pin 27, it is possible to prevent the diameter-expanded portion 28 from inadvertently falling out of the enlarged hole portion 38.

An embodiment of an article transporter according to the present invention. The front view of the frame 4. FIG. (A) is an enlarged front view of the front and rear support members 6a and 7a, and (B) is a sectional view of the same. 3 is a three-sided view of the intermediate shelf 5. FIG. The principal part enlarged view of the intermediate shelf 5 and the frame 4 in the state which is supporting the intermediate shelf 5. FIG. (A) is a principal part enlarged plan view of the intermediate shelf 5, (B) is also a side view. 3 is a three-side view of the base substrate 2. FIG. Embodiment different from FIG. 1 of the articles | goods conveyance tool which concerns on this invention. The front view of the frame 4 of FIG. The enlarged front view of the supporting member of FIG. FIG. 9 is a three-side view of the intermediate shelf 5 in FIG. 8. The enlarged view of the locking pin 27 of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Goods conveying tool 2 Base substrate 3, 4 Frame body 5 Intermediate shelf 6a, 6b Front side supporting member 7a, 7b Rear side supporting member 8 Front side locking hole 8A Enlarged hole part 8B Dropping hole part 9 Guide groove 10 Rear side cover Locking groove 13 Moving wheel 16 Front locking pin 17 Front enlarged diameter portion 18 Operating portion 19 Rear locking pin 20 Rear enlarged diameter portion IP inner surface OP of guide groove Opening portion of rear support member

Claims (8)

In the article transporter,
A base substrate having wheels for movement;
Frames respectively installed on the left and right sides of the base substrate so as to form an article storage space having the base substrate at the bottom and the front-rear direction being open,
An intermediate shelf of a single plate that is supported so as to be height-adjustable in the article storage space and is not divided in the front-rear direction;
In order to support the intermediate shelf, a front support member installed on the front side of each frame,
A rear support member installed on the rear side of each frame, and
Front side locking portions provided at both ends of the front portion of the intermediate shelf;
A rear locking portion provided at both ends of the rear portion of the intermediate shelf;
A front-side locked hole that is formed at a plurality of positions on the front-side support member and is engageable with a front-side locking portion of the intermediate shelf;
A guide groove formed in the rear support member so that the rear locking portion can move in the vertical direction;
A rear-side locked groove formed at a plurality of positions on the rear-side support member so as to be continuous with the guide groove;
The guide groove is located on the rear side of the rear locked groove, the rear locked groove is inclined downward from the rear side to the front side, and the intermediate shelf is arranged at a lower end portion of the inclination. An article conveying tool for locking the rear side locking portion. The front-side locked hole has an enlarged hole portion, a drop hole portion that is continuous with the lower portion of the enlarged hole portion and has a smaller diameter than the enlarged hole portion,
The front side latching portion of the intermediate shelf is provided so as to be capable of withdrawing in the left-right direction, and has an operation portion for operating the withdrawal.
A front-side enlarged portion that is larger in diameter than the drop-in hole portion and can be inserted into the enlarged hole portion is formed at the tip of the front-side locking portion,
When the intermediate shelf is supported, the front-side locking portion is operated so as to protrude in the left-right direction, so that the front-side enlarged diameter portion passes through the enlarged hole portion, and then the intermediate shelf is pushed down. The article conveying tool according to claim 1, wherein the front side locking portion is dropped into the drop hole portion.   A rear-side enlarged portion having a diameter larger than the width of the rear-side locked groove and the guide groove is formed at the tip of the rear-side locking portion of the intermediate shelf, and the rear-side locked groove and the guide The article conveying tool according to claim 1, wherein the rear-side enlarged diameter portion prevents the rear-side locking portion from falling out of the groove.   The lower end part of the said drop hole part and the lower end part of the said back side latching groove are formed so that the corresponding height may become equal in order to support the said intermediate shelf horizontally. Goods conveying tool.   The article transporter according to claim 1, wherein the rear support member is formed in a square pipe shape, and the guide groove and the rear locked groove are formed on an inner surface of the rear support member in the left-right direction. The frame has vertical struts respectively installed at the front and rear portions of the base substrate, and a plurality of cross members installed between the two vertical struts,
The article transporter according to claim 1, wherein the front support member and the rear support member are attached so as to intersect the plurality of cross members. In the article transporter,
A base substrate having wheels for movement;
Frames respectively installed on the left and right sides of the base substrate so as to form an article storage space having the base substrate at the bottom and the front-rear direction being open,
An intermediate shelf of a single plate that is supported so as to be height-adjustable in the article storage space and is not divided in the front-rear direction;
In order to support the intermediate shelf, support members respectively installed on the front side and the rear side of each frame,
A locking portion that is provided at each of the front side end and the rear side end of the intermediate shelf, and is capable of moving in and out in the left-right direction,
An enlarged diameter portion formed at the tip of the locking portion and having a larger diameter than the locking portion;
An enlarged hole portion formed at a plurality of upper and lower locations in the support member, through which the enlarged diameter portion can be inserted,
A locked groove formed in the support member so as to be continuous with a lower portion of the enlarged hole portion,
A guide groove formed in the support member so as to be continuous with the enlarged hole portion and the locked groove;
The guide groove is located outside the enlarged hole portion and the locked groove, the locked groove is inclined downward from the outside to the inside, and the lower end of the slope has the intermediate shelf. An article conveying tool characterized by engaging an engaging portion.   8. The article conveyance according to claim 7, wherein the locking portion is provided with a stopper for preventing retraction in an inward direction, and an operation portion for releasing the stopper and operating the locking portion. Ingredients.

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