JP2000355410A - Rotating shelf - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To rotate an article storage device at a high speed without disturbing stored articles. An endless rotating body is provided on a rotating shelf for rotating a plurality of article storage devices attached to the endless rotating body along a horizontal circulation path.
42, the turning path C of the endless rotating body 14 is regulated by two upper and lower arcuate guides 15, and the upper guide 15 is set at a height in contact with the upper guide roller 142, and the lower guide 15 is Are arranged at a height in contact with the lower guide roller 142, and a mounting interval of the guide roller 142 along the circulation path is larger than a width dimension of the article storage device 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating shelf which rotates along a horizontal circulation path, and in particular, can rotate an article storage device at a high speed without disturbing stored articles. It concerns a rotating shelf.

[0002]

2. Description of the Related Art As a conventional technique relating to a rotating shelf, a technique disclosed in Japanese Patent Application Laid-Open No. 1-162610 is known.

[0003] The prior art described in the above publication is described.
A plurality of storage boxes can be circulated on an elongated base, and an elliptical drive endless flexible body is drivably wound around a driving vehicle and a driven vehicle provided in a longitudinal direction of the base, respectively. A circular warehouse formed as a quadratic curve by providing arc-shaped guides on the prime mover and driven vehicle sides at both ends in the longitudinal direction.

[0004]

However, the above-mentioned prior art has the following problems.

That is, in the circulation type warehouse described in Japanese Patent Application Laid-Open No. 1-162610, a driving endless flexible body (a toothed belt, a chain, etc.) is driven by a driving wheel (a pulley, a sprocket, etc.).
Alternatively, there is a problem in that, when biting into or being disengaged from a driven vehicle (pulley, sprocket, etc.), an impact is generated due to "gap" and the articles stored in the storage box (article storage tool) are disturbed.

Accordingly, an object of the present invention is to disturb a stored article by restricting the turning path of the endless rotating body by an arc-shaped guide without providing a driving vehicle and a driven vehicle on the turning path of the endless rotating body. It is an object of the present invention to provide a rotating shelf that can rotate an article storage device at a high speed without using a rotating shelf.

[0007]

According to the present invention, there is provided a rotating shelf for rotating a plurality of article storage devices attached to an endless rotating body along a horizontal circulation path, wherein the endless rotating body is provided with a guide roller. The turning path of the endless rotating body is regulated by an arc-shaped guide, and the guide is disposed at a height in contact with the guide roller, and a mounting interval of the guide roller is larger than a width dimension of the article storage device. The above object has been attained by providing a rotating shelf characterized by the above.

Further, in a rotating shelf for rotating a plurality of article storage devices attached to the endless rotating body along a horizontal circulation path, the endless rotating body is provided with guide rollers vertically and is provided with an endless rotating body. The turning path of the moving body is regulated by two upper and lower arc-shaped guides, the upper guide is arranged at a height in contact with the upper guide roller, and the lower guide is arranged at a height in contact with the lower guide roller, The above object has been attained by providing a rotating shelf characterized in that a mounting interval of the guide rollers along the circulation path is larger than a width dimension of the article storage device.

It is preferable that the driving device for the endless rotating body is provided at a plurality of positions on the straight path of the endless rotating body.

Further, the endless rotating body is a standard roller chain (in the present invention, the standard roller chain is a JIS (Japanese Industrial Standard)).
B 1801 ", a transmission roller chain, J
It is a general-purpose roller chain such as a roller chain with a double pitch that is not specified in IS). Guide rollers are attached to the upper and lower sides, and the horizontal circulation path has an elliptical shape. Is preferred.

It is preferable that the curvature of the arcuate guide increases stepwise from the straight traveling path side of the endless rotating body toward the center of the turning path.

[0012]

Embodiments of the present invention will be described below.

FIG. 1 is a perspective view showing an embodiment of an article packing apparatus using a rotating shelf according to the present invention, and FIG. 2 is a schematic plan view of the rotating shelf shown in FIG. FIG. 3 is an enlarged view of the turning unit of the rotary shelf shown in FIG. 2, FIG. 4 is an enlarged view of a main part of the turning unit shown in FIG. 3, and FIG. 5 is an enlarged view of the turning unit shown in FIG. Guide shape explanatory view, FIG. 6
FIG. 7 is a sectional view of the turning movement unit of the rotary shelf shown in FIG. 2, and FIG.
8 is a cross-sectional view of a linear moving portion of the rotating shelf shown in FIG. 2, FIG. 9 is a plan view of a driving device for an endless rotating body, and FIG.
9 is a side (cross-sectional) view of FIG. 9, FIG. 11 is an enlarged view of a main part of FIG. 10, FIG. 12 is a cross-sectional view of the endless rotating body of the rotary shelf shown in FIG.
FIG. 13 is a plan view of FIG. 12, and FIG. 14 is a supplementary explanatory view of the shape explanatory view of the guide shown in FIG.

In these drawings, reference numeral 1 denotes a rotating shelf for rotating a plurality of article storage tools (trays) 12 attached to an endless rotating body (endless chain) 14 along a horizontal (oval) circulation path. 2, a transfer device disposed on the side of the linear moving portion of the rotating shelf 1; 3, a storage device disposed on the side of the linear moving portion of the rotating shelf 1, 4; Is a delivery conveyor arranged along the linear moving part of the rotating shelf 1, 5 is a carrying-out conveyor arranged along the linear moving part of the rotating shelf 1, and 6 is a carrying-out conveyor arranged along the linear moving part of the rotating shelf 1. The endless chain 14 has guide rollers (vertical axis rollers for guiding) 142 mounted above and below the standard roller chain 141 at intervals larger than the width of the tray 12 (in the direction along the circulation path). The turning path C of the endless chain 14 is The upper guide 15 is arranged at a height in contact with the upper guide roller 142, the lower guide 15 is arranged at a height in contact with the lower guide roller 142, and an endless chain. 14
Of the endless chain 14 are disposed at a plurality of positions on the straight path S. The guide 15 is fixed, and is formed so that the curvature of the guide 15 increases stepwise from the straight path S side of the endless chain 14 toward the center of the turning path C. Thus, in the above-described method for packing goods by the packing equipment for goods, the goods G carried in through the carry-in conveyor 5 are stored one by one in the storage tray 12 of the rotating shelf 1 by the storage device 3 at the free location. When a shipment request (for example, information such as a shipment order for each shipping destination and its shipping type and quantity data) is determined, the article G is taken out from the storage tray 12 in advance, and The plurality of types (product types) of the taken out articles G are transferred and stored so as to be stored in the order of being delivered to the plurality of continuous loading trays 12 attached to the endless chain 14 by the transfer apparatus 2. It is made to do. Therefore, when the shipping truck or the like arrives, the articles G are already unloaded in the order in which they are delivered to the unloading tray 12, so that the desired articles G are unloaded in the desired order in a very short time. be able to.

To explain each part in the above embodiment, the rotating shelf 1 is constituted by stacking a plurality of rotating shelves 11 at appropriate intervals (10 stages in the embodiment shown in FIG. 1). The single unit 11 includes traveling rails 131, 1 on which a plurality of trays 12 attached at equal intervals to an endless chain 14 are disposed along a horizontal elliptical circulation path.
The endless chain 14 is supported so as to be able to run (rotate) on the guide rail 32, and is wound around guides 15 fixedly installed at the turning movement portions at both ends, and is hung along the running rails 131 and 132. A plurality of drive devices 1 that are operated in conjunction
6, the endless chain 14 is rotated.
It is configured to be rotated independently of the rotating shelf unit 11 in other stages. Each of the rotating racks 11 is configured to rotate independently of the rotating racks 11 in the other stages, but the tray 12 may be appropriately mounted on one or a plurality of endless chains 14 that are operated synchronously. The rotating shelf 1 may be configured by fixing the rotating shelf 11 having a plurality of stages by fixing the rotating shelf 11 at a plurality of stages at intervals, and by stacking a plurality of sets (a plurality of stages) of the rotating shelf alone 11 having the plurality of stages. Further, the rotating shelf 1 may be configured by stacking a plurality of sets (a plurality of stages) of the rotating shelf unit 11 having one stage and the rotating shelf unit 11 having a plurality of stages. Alternatively, the rotating shelf 1 may be constituted by only one stage of the rotating shelf 11 without stacking the rotating shelf units 11.

The tray 12 has a bottom plate 121, side walls 122, a back wall 123, and the like. A chain mounting plate 124 mounted on the bottom plate 121 is fixed to a tray mounting plate 143 mounted on the endless chain 14. As a result, they are attached to the endless chain 14 at equal intervals. In addition, 125 is a pair of outer horizontal shaft rollers supported on the outer bottom surface of the bottom plate 121, and 126 is a back horizontal shaft roller supported on the back bottom surface of the bottom plate 121. An outer end portion of the bottom plate 121 is formed with a mountain-shaped projection 127, and an outer end portion 128 of the side wall 122 is expanded laterally. Note that the endless chain 1 is placed on the tray 12 such that the endless chain 14 is disposed on the back side of the back side horizontal shaft roller 126.
4, the endless chain 14 is arranged between the outer horizontal shaft roller 125 and the inner horizontal shaft roller 126, or the endless chain 14 is arranged outside the outer horizontal shaft roller 125. As described above, it may be attached to the endless chain 14.

The traveling rails 131 and 132 are composed of a pair of (groove-shaped) traveling rails 131 forming a linear moving portion of the rotating shelf 11 (tray 12), and a turning moving portion of the rotating shelf 11 (tray 12). And a pair of (plate-shaped) running rails 132 forming the same.

Further, the endless chain 14 has a guide vertical shaft roller 142 above and below a standard roller chain (for example, a transmission roller chain of "JIS B 180160") 141 with respect to the direction along the circulation path. (For example, 419.1 mm),
This is a chain with an attachment to which a tray mounting plate 143 is attached so as to connect the upper portions of vertical shaft rollers 142 attached at intervals larger than the width dimension of the tray 12 (for example, 365 mm). Further, the endless chain 14 may be arranged in an L shape instead of an oval shape.

Further, a guide 15 fixedly installed on the turning and moving portion of the rotating shelf unit 11 (tray 12) restricts the turning path C of the endless chain 14 (FIG. 5).
, The curved portion shown by a solid line) has a plurality of curvatures in a plan view, and the curvature of the regulating portion gradually increases from the straight path S side of the endless chain 14 toward the center of the turning path C. (The radius of curvature becomes smaller stepwise), and the radius of curvature of the portion of the regulating portion having the largest curvature is the distance between the two straight paths S forming the circulation path (for example, 826 mm). (For example, 400 mm). That is, when the interval between the two straight paths S is 826 mm and the (curvature) radius of the portion having the largest curvature is 400 mm (see FIGS. 5 and 14), one end of the endless chain 14 from the straight path S side The point at the end of the straight path S of the endless chain 14 toward the center of the turning path C is defined as a, and the point (a) at the point a is in contact with the straight path S (curvature). The point at which the central angle is 3 ° toward the central portion is defined as b. A point having a central angle of 6 ° from the point b toward the center of the turning path C on the arc having a radius of curvature of 800 mm (curvature) in contact with an arc having a radius of curvature of 1600 mm at the point b is denoted by c. At the point c, the radius of curvature (curvature) is 800 m.
A point having a center angle of 12 ° from the point c toward the center of the turning path C on the arc having a radius of 530 mm (curvature) in contact with the arc m is defined as d. Also, at a point d, a point at the center of the turning path C on a circular arc having a radius of curvature of 400 mm (curvature) in contact with an arc having a radius of 530 mm (curvature) is defined as e, and passes through points a and b (curvature).
An arc with a radius of 1600 mm, an arc with a radius of 800 mm passing through points b and c (curvature), an arc with a radius of 530 mm passing through points c and d (curvature), and passing through points d and e Yes (curvature)
Plural (4 pieces) each connected to an arc with a radius of 400 mm
A half of the regulating portion of the guide 15 is formed by the combination of the arcs having the (curvature) radius of, and the shape of the regulating portion from the point e at the center of the turning path C to the point at the end of the other straight path S is The shape of the restricting portion from the point a at the end of the one straight path S to the point e at the center of the turning path C is formed in line symmetry. That is, the radius of curvature of the restricting portion of the guide 15 is 1600 mm, 800 from the straight path S side of the endless chain 14 toward the center of the turning path C.
mm, 530 mm, and 400 mm, which are gradually reduced (the curvature is gradually increased).
The radius of curvature of the portion of the regulating portion having the largest curvature forms an interval (826 m) between two straight paths S forming a circulation path.
m) (400 mm). The upper and lower guides 1 are provided with two upper and lower guides 15 each having the restricting portion formed as described above (see FIGS. 6 and 7).
5 is the upper vertical shaft roller 1 of the endless chain 14.
Since the restricting portion of the lower guide 15 is disposed at a height in contact with the vertical shaft roller 142 on the lower side of the endless chain 14, the upper and lower vertical shafts of the endless chain 14 The rollers 142 are two upper and lower guides 15 respectively.
The standard roller chain 141 of the endless chain 14 connects the vertical shaft roller 142 and the adjacent vertical shaft roller 142 as shown in FIG. 4 (length of 419.1 mm). ) (A polygon having corners formed by the respective vertical axis rollers 142), that is, most of the standard roller chain 141 enters the gap 151 between the upper guide 15 and the lower guide 15. The turning path C of the endless chain 14 is regulated by two upper and lower arcuate guides 15.

As shown in FIG. 2, the drive unit 16 is provided with one endless chain 14 for each of 29 trays 12 attached at equal intervals to the endless chain 14.
Are arranged at a plurality of locations on the straight path S of the vehicle, and are operated in conjunction with each other.
The pair of drive sprockets 161 and one drive motor 162 arranged along the endless chain 14 make the standard roller chain 141 of the endless chain 14 into an oval circulation path. Are rotated in both forward and reverse directions. In addition, the tray 12, the endless chain 14,
The drive unit 16 and the like are unitized. For example, in the case of the rotating shelf 1 (the rotating shelf unit 11) in which 200 trays 12 are attached to the endless chain 14 with 50 trays 12 as one unit, four units are used. As a result, the four driving devices 1
6 may be provided at equal intervals.

Further, the transfer device 2 of the article packing equipment using the rotating shelf 1 is provided with
Two masts, an upper frame laid on its upper side, a lower frame laid down on its lower part, an elevating platform that moves up and down along the two masts, and a pair mounted on the elevating platform The pair of fork devices are configured so as to be independently retractable in the direction of the tray 12, and the articles G are taken out from the storage tray 12 and stored in the load alignment tray 12. It is made to do. The fork device is configured to be able to confront the rotating racks 11 of all stages by raising and lowering the lifting table.

Two storage devices 3 are provided beside the linear moving portion of the rotary shelf 1 and, similarly to the transfer device 2, each of the storage devices 2 has two masts, and an upper frame provided on the upper side thereof. , A lower frame laid laterally below the lower frame, a lifting platform that moves up and down along two masts, a pair of fork devices mounted on the lifting platform, and the like. 12, it is configured to be able to move in and out in the direction of 12, and to take in the articles G from the storage station of the carry-in conveyor 5 and store them in the storage tray 12. The fork device is configured to be able to confront the rotating racks 11 of all stages by raising and lowering the lifting table.

The unloading device 4 is arranged on the side of the linear moving portion of the rotary shelf 1 and, like the transfer device 2, has two masts, an upper frame provided on the upper side thereof,
It comprises a lower frame provided laterally below the lower frame, a lifting platform that moves up and down along two masts, a pair of fork devices mounted on the lifting platform, and the like. It is configured to be able to leave in the direction of
The articles G are taken out from the loading tray 12 and placed on the unloading station of the unloading conveyor 6. The fork device is moved from the bottom by 1
It is configured to be able to face the rotating shelf unit 11 at the third to third stages from the bottom.

The carry-in conveyor 5 is disposed along the linearly moving portion of the rotary shelf 1 and has a terminal portion and an intermediate portion.
It is a drive roller conveyor provided with two storage stations.

The unloading conveyor 6 is arranged along the linear moving section of the rotary shelf 1 and has a start end 62 composed of a drive roller conveyor having two unloading stations, a transport section 63 composed of a horizontal drive roller conveyor, Start end 62 and transport section 6
The swing unit 64 is configured by a swing unit 64 or the like, which is a swing belt conveyor that connects the transfer unit 3 with the transfer unit 3. The end on the start end 62 side can be moved up and down following the elevation of the mounted start end 62.

According to the above-described method for packing articles by the article packing apparatus, the articles G carried in through the carry-in conveyor 5 are stored in the storage tray 3 of the rotating shelf 1 by the storage device 3.
2 are stored in the free location one by one, and when a shipping request (for example, information such as a shipping sequence for each shipping destination and its shipping type and quantity data) is determined, a storage tray is stored in advance. The goods G are taken out of the tray 12 and the plurality of kinds (products) of the taken out goods G are stored in the plurality of continuous trays 12 for packing arranged on the endless chain 14 by the transfer device 2 in the order in which they are taken out. It is designed to be relocated and repacked. Therefore, when the shipping truck or the like arrives, the articles G are already unloaded in the order in which they are delivered to the unloading tray 12, so that the desired articles G are unloaded in the desired order in a very short time. be able to.

Next, regarding the acceleration generated when the endless chain 14 moves from the straight path S to the turning path C, first, the turning path C of the endless chain 14 has a constant (curvature) radius, and the vertical axis roller of the endless chain 14 A reference example in the case where the interval P of the 142 is smaller than the width of the tray 12 will be described. That is, as shown in FIG. 15, the rotation speed V0 of the endless chain 14 is 25 m / min, the radius of the turning path C is 400 mm, and the vertical shaft roller 14 of the endless chain 14
2 is 140 mm (419.1 mm in the embodiment of the present invention shown in FIG. 4), and the distance Ls between the vertical shaft roller 142 of the endless chain 14 and the outer end of the tray 12 is 5 mm.
If it is 50 mm, the tray 1 on the straight path S
2 has a rotation speed V1 of 25 m / min,
The rotation speed V of the outer end of the tray 12 in the turning path C
2 is 59.4 m / min. The time t required for the pair of vertical shaft rollers 142 attached at an interval P of 140 mm to move from the straight path S to the turning path C is 0.336 s. Therefore, when the endless chain 14 moves from the straight path S to the turning path C, the tray 12
The acceleration α generated at the outer end of is equal to 0.17 times the gravity. When the mounting interval P of the vertical axis roller 142 is larger than the width dimension of the tray 12, for example, the mounting interval P of the vertical axis roller 142 with respect to the direction along the circulation path is set.
Is 419.1 mm, the time t required for the pair of vertical shaft rollers 142 attached at an interval P of 419.1 mm to move from the straight path S to the turning path C is 1.006 s, and the endless chain 14 When the vehicle moves from the straight path S to the turning path C, the acceleration α generated at the outer end of the tray 12 is 0.06 times the gravity (even if the turning path C has a constant radius of curvature).

In the case where the turning path C of the endless chain 14 has a constant curvature (radius), as shown in FIGS. 5 and 14, the endless chain 14 is moved from the straight path S to the center of the turning path C as shown in FIGS. The guide 15 is formed such that the curvature of the guide 15 gradually increases (the radius of curvature decreases stepwise), and the radius of curvature of the portion of the regulating portion having the largest curvature forms a circulation path 2. When the interval P between the vertical shaft rollers 142 of the endless chain 14 is smaller than the width dimension of the tray 12 (reference example), as shown in FIG. 1
4 is 25 m / min, the radius of curvature of the largest curvature portion of the regulating portion of the guide 15 is 400 mm, and the interval P between the vertical shaft rollers 142 of the endless chain 14 is 140.
mm (419.1 m in the embodiment of the present invention shown in FIG. 4).
m), when the distance Ls between the vertical shaft roller 142 of the endless chain 14 and the outer end of the tray 12 is 550 mm, the rotation speed V1 of the outer end of the tray 12 on the straight path S is 25 m / min. And the portion of the regulating portion of the guide 15 of the turning path C where the curvature is the largest (the radius of curvature is 40).
The rotation speed V2 of the outer end of the tray 12 at the position of 0 mm) is 59.4 m / min. Also, 140mm
The time t required for the pair of vertical shaft rollers 142 attached at the interval P to move from the straight path S to the portion having the largest curvature (portion having a radius of curvature of 400 mm) of the regulating portion of the guide 15 of the turning path C is 1. .006s. Accordingly, the endless chain 14 moves from the straight traveling path S to the turning path C
The acceleration α generated at the outer end of the tray 12 when moving to the portion having the largest curvature (the portion having a radius of curvature of 400 mm) of the regulating portion of the guide 15 is 0.06 times the gravity. In the embodiment of the present invention shown in FIG. 4, since the mounting interval P of the vertical shaft roller 142 with respect to the direction along the circulation path is 419.1 mm, it is 419.1 m.
a pair of vertical shaft rollers 142 attached at an interval P of m
The time t required for the vehicle to move from the straight path S to the turning path C is 1.675 s, and the acceleration α generated at the outer end of the tray 12 when the endless chain 14 moves from the straight path S to the turning path C is zero of gravity. 0.03 times.

Therefore, when the interval P between the vertical axis rollers 142 in the direction along the circulation path is larger than the width dimension of the tray 12 (for example, 419.1 mm), the interval P between the vertical axis rollers 142 is set to be smaller. Smaller than the width dimension of the tray 12 (for example, 140 mm)
As compared with the case, the article G stored in the tray 12 slides on the bottom plate 121 of the tray 12 and tilts (rotates) with respect to the retreating direction (of the fork device) of the transfer device 2 or the like.
Can be prevented. Further, even if the rotation speed V0 of the endless chain 14 is increased from 25 m / min to 50 m / min, the acceleration α generated at the outer end of the tray 12 is 0.14 times the gravity, that is, the endless chain shown in FIG. In the reference example in which the turning path C of the chain 14 has a constant (curvature) radius, the rotation speed V0 of the endless chain 14 is 25 m / mi.
n, the acceleration α generated at the outer end of the tray 12
, The articles G stored in the tray 12
Slides on the bottom plate 121 of the tray 12 to move the transfer device 2
It is possible to achieve high-speed rotation of the rotary shelf 1 without increasing the amount of tilt (rotation) with respect to the retracting direction (of the fork device).

Although the embodiments of the present invention have been described with the embodiments of the article packing equipment using the rotating shelf of the present invention, the rotating shelf of the present invention is not limited to these. For example, only one arc-shaped guide 15 may be provided, and the regulating portion may be formed by a groove without being formed on the side surface.

Further, the vertical shaft roller 142 for guiding the endless chain 14 may be attached to only one of the upper and lower sides of the standard roller chain 141.

Further, the regulating portion of the arcuate guide 15 may have one curvature.

Also, a linear motor may be used as the driving device 16.

[0034]

As described above, the rotating shelf of the present invention can rotate the article storage device at a high speed without disturbing the stored articles.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an article packing apparatus using a rotating shelf according to the present invention.

FIG. 2 is a schematic plan view of the rotating shelf shown in FIG. 1 (however, the number of attached article storage devices is different).

FIG. 3 is an enlarged view of a turning movement unit of the rotating shelf shown in FIG. 2;

FIG. 4 is an enlarged view of a main part of the turning movement unit shown in FIG. 3;

FIG. 5 is an explanatory diagram of a shape of a guide of the turning movement unit shown in FIG. 4;

FIG. 6 is a cross-sectional view of a turning moving unit of the rotating shelf shown in FIG.

FIG. 7 is an enlarged view of a main part of FIG. 6;

FIG. 8 is a sectional view of a linear moving portion of the rotating shelf shown in FIG. 2;

FIG. 9 is a plan view of a driving device for an endless rotating body.

FIG. 10 is a side (cross-sectional) view of FIG. 9;

FIG. 11 is an enlarged view of a main part of FIG. 10;

FIG. 12 is a sectional view of an endless rotating body of the rotating shelf shown in FIG. 2;

FIG. 13 is a plan view of FIG.

14 is a supplementary explanatory diagram of the explanatory diagram of the shape of the guide shown in FIG. 5;

FIG. 15 is an explanatory diagram of acceleration generated when the endless chain moves from a straight path to a turning path, and is a reference example in the case where the turning path has a constant (curvature) radius.

FIG. 16 is an explanatory diagram of acceleration generated when the endless chain moves from the straight path to the turning path, and is formed so that the curvature of the guide increases stepwise from the straight path to the center of the turning path. This is a reference example in the case of

[Explanation of symbols]

 Reference Signs List 1 rotating shelf 12 article storage device (tray) 14 endless rotating body (endless chain) 15 guide 16 driving device 141 standard roller chain 142 guide roller (vertical axis roller for guide) C turning path S straight path

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tatsuo Yamane 3-1, Higashi 3-chome Station, Koga-shi, Fukuoka F-term (reference) 3F022 EE01 FF34 JJ19 KK01 LL32 LL33 MM24 MM40 MM66

Claims (5)

[Claims] 1. A rotating shelf for rotating a plurality of article storage devices attached to an endless rotating body along a horizontal circulation path, wherein said endless rotating body is provided with a guide roller, and said endless rotating body is provided with a guide roller. A rotating shelf, wherein a turning path is regulated by an arcuate guide, the guide is disposed at a height in contact with the guide roller, and a mounting interval of the guide roller is larger than a width dimension of the article storage device. 2. A rotating shelf for rotating a plurality of article storage tools attached to an endless rotating body along a horizontal circulation path, wherein said endless rotating body has guide rollers attached vertically and said endless rotating body. The turning path of the moving body is regulated by two upper and lower arc-shaped guides, the upper guide is arranged at a height in contact with the upper guide roller, and the lower guide is arranged at a height in contact with the lower guide roller, A rotating shelf, wherein a mounting interval of the guide rollers along the circulation path is larger than a width dimension of the article storage device. 3. The rotating shelf according to claim 1, wherein drive devices for the endless rotating body are provided at a plurality of positions on a straight path of the endless rotating body. 4. The rotating shelf according to claim 2, wherein the endless rotating body is configured by attaching guide rollers above and below a standard roller chain, and the horizontal circulation path is an elliptical shape. 5. The curvature of the arcuate guide increases stepwise from the straight path side of the endless rotating body toward the center of the turning path.
The rotating shelf described.