JPH046614B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rotating shelf device that can be suitably used even under special environments where the floor surface is inclined and swings back and forth and left and right.

[Background Art] Conventionally, a rotating shelving device is generally used as a type of automated warehouse, and is used to move carts on which stored cargo or cargo for storage is placed to an exit or entrance for the cargo. The cargo is carried in and out.

Further, since such a rotating shelf device has conventionally been installed on a fixed, immovable floor surface, no safety measures have been provided for the device against inclination or rocking of the floor surface.

Therefore, when the device is installed on a moving object such as a transportation truck or a freight car, the rocking of the floor surface poses a risk of the cart and cargo falling over, making the device difficult to operate.

In addition, even if the operation is stopped to avoid this danger, the slack in the drive chain etc. will cause the bogie to wobble back and forth in the running direction, causing the load to collapse, and the looseness will also cause shock loads to be applied to the chain. There were also problems such as elongation and breakage of the chain.

[Purpose of the invention]

The present invention includes a plurality of carts that run on rail members arranged vertically in an oblong shape in which linear portions are connected by arcuate portions, and a first fixture that aligns the carts located on the arcuate portions. and a second fixture for positioning the trolleys located at both ends of the straight section; and a third fixture for positioning the trolleys by pressing between other trolleys located between the trolleys positioned by the second fixtures. This basically makes it possible to operate during relatively gentle swings, and when large swings occur, the trolley can be easily and reliably positioned and fixed, preventing shocks to the drive chain, load collapse, etc. The object of the present invention is to provide a rotating shelf device that can solve the above-mentioned problems by preventing the above-mentioned problems and increasing the safety of the device.

[Disclosure of the invention]

An embodiment of the present invention will be described below based on the drawings.

In the figure, the rotating shelf device 1 of the present invention has a straight section 2
A rail member 7 consisting of an upper rail 5 and a lower rail 6 arranged vertically and having an oblong shape whose both ends are connected by a circular arc portion 3 has an upper guide tool 9 and a lower guide guide respectively guided by the rail member 7. A first fixing device that allows a plurality of carts 11 having tools 10 to travel along the rail member 7, and is arranged on the arc portion 3 and aligns the carts 11A, 11A on the arc portion 3 by extension. 20, and a trolley 1 disposed near both ends of the straight section 2 and positioned at both ends of the straight section 2 as it rises.
A second fixture 23 for positioning the carriage 1B... and a carriage 11B positioned between the carriage 11B, which is provided on the carriage 11 and is positioned by the second fixture 23 by protruding in the running direction of the carriage 11.
A third fixture 26 for butting C... is provided.

As shown in FIGS. 1 to 3, the rail member 7 is
It consists of an upper rail 5 and a lower rail 6, each having the same trajectory and arranged above and below with a gap between them,
It is formed into an ellipse shape in which both ends of parallel straight portions 2 are connected by a circular arc portion 3.

Further, in this example, the upper rail 5 has a rectangular cross-section rail piece 30 connected to the horizontal piece 29A of the base 29 made of L-shaped steel by bolts, as shown in FIG. It is formed horizontally as it is located. Further, the lower rail 6 is formed from a shaped net and laid on the floor surface F. A plurality of trolleys 11... are disposed in a movable manner between the upper and lower rails 5, 6, and in this example, the arc portion 3 is provided with a space for loading and unloading the cargo W placed on the trolleys 11... Mouths A and A are formed, respectively.

As shown in FIGS. 4 and 5, the trolley 11, in this example, has a pallet 3 inside which can store the cargo W, etc.
2 can be stored in two stacks, top and bottom, base box 35
At the top and bottom of the base box 35, an upper guide tool 9 and a lower guide tool 10 are respectively guided by the rail member 7.
It is equipped with

The base box 35 is a frame body that connects a rectangular bottom frame 36 and a top frame 37 with supports 39.
An intermediate frame 40 is spanned approximately at the center of the top frame 37, and a floor plate or the like is installed on the bottom frame 36 and the intermediate frame 37, respectively. In this example, the base box 35 has reinforcing members 42 such as cross bars and tambuckles stretched over the front and rear sides facing the traveling direction and the top frame 37.

Also, on the L-shaped horizontal plates 45, 45 stretched along the running direction on the top surface of the ceiling frame 37, front and rear in the running direction,
Upper guide tools 9, 9 are installed on the lower surface of the lower frame 10, and lower guide tools 10, 1 are installed on the horizontal plate 47 between the U-shaped beams 46A, 46B stretched along the running direction.
0 is attached to each.

The guide tools 9 and 10 are traveling tools, and the upper guide tool 9 is, as shown in FIG.
First roller bodies 50 and 50, into which the rail piece 30 is loosely fitted, are pivotally supported at 9 and 49, respectively.

The bracket 51 is connected by a bolt or the like to the upper end of a base shaft 55 which is pivotally supported in an inner hole 52A of the base tube 52 which is welded between the horizontal plates 45, 45 via a bearing piece 53 such as a ball bearing.

Further, the horizontal piece 51A protruding from the upper end of the bracket 51 has a stepped axle 49 having a threaded portion 49A at the lower end.
is vertically screwed onto the axle 49, and the axle 49 has a
A first roller body 50 that is engaged with the step 49B is horizontally and rotatably supported.

An axle 57 having attachment parts cut out by milling or the like at both ends is fixed horizontally to the upper part P of the connection part of the bracket 51 with the base shaft 55, and a second roller body is attached to the axle 57. 5
9 is pivoted. In this example, the gap between the first roller bodies 50, 50 is made slightly wider than the width of the rail piece 30, and a small gap is formed between the upper surface of the second roller body 59 and the lower surface of the rail piece 30. It forms L1.

Therefore, since the bracket 51 is disposed horizontally and rotatably, the upper guide tool 9 can move around the arcuate portion 3.
The second roller bodies 59, 59 can move their center of rotation rotatably along the locus of the upper rail 5.

In this example, the lower guide tool 10 is a so-called kicker-shaped wheel tool, and includes a wheel body 61 that has a step at both ends that exceeds the small gap L1 and has a flange portion that fits loosely on both sides of the upper end of the lower rail 6. The wheel body 61 is formed to be able to roll along the locus of the lower rail 6 and to be rotatable about its rolling center in the horizontal direction.

Therefore, the trolley 11 supports the wheel body 6 of the lower guide tool 10.
1 can roll while loosely fitting the upper end of the lower rail 6,
In addition, the first roller bodies 50, 50 of the upper guide tool 9 loosely fit the rail pieces 30 of the upper rail 5, thereby making it possible to run along the rail member 7 and preventing the inclination and shaking of the floor surface F. It can prevent falling due to movement. Furthermore, the second roller body 59
0 and the small gap L1, it is possible to prevent the wheel body 61 from coming off due to rocking of the floor surface or the like.

In this example, the trolley 11 is connected to a drive device 63 having an electric motor M via connection plates 62A and 62B provided on the sides and center of the beam 46B.

As shown in FIG. 2, the drive device 63 includes chain wheels 65 and 66 that are pivoted at the arc center Q of the arc portion 3.
An endless string 12 such as a chain is wound around the rail member 7 and arranged along the rail member 7.
2 is rotated by electric motor M. In this example, the chain wheel 65 is connected to a drive shaft 67 which is connected to the electric motor M via means such as a reduction mechanism or a clutch mechanism, and the chain wheel 66 is connected to an idle shaft 69.

In this example, the chain wheels 65, 65 are connected to upper and lower engaging portions 65A, 65B, 66A, 66B as shown in FIG.
The meshing portions 65 are formed into a two-plate tooth shape with a respective meshing portion 65.
Endless string pieces 12A and 12B are wound in two stages between A and 66A and between 65B and 66B. Further, the link plates forming the endless string pieces 12A, 12B are provided with protrusions 72A, 72B, and the protrusions 72A, 72B and the connecting plates 62A, 62 are provided with protrusions 72A, 72B.
Connect B with a pin.

Therefore, the carts 11 are connected to the endless string 12 which is rotated by the electric motor M by connecting connecting plates 62A, 62B and protrusions 72A, 72B with pins, respectively, and as the endless string 12 rotates, the carts 1
1... can travel along the trajectory of the rail member 7. By providing the trolley 11 with an appropriate detector, the trolley 11 can be stopped at any position, and in this example, the trolleys 11... are connected to the endless chain 12 at equal intervals, and each of the trolleys 11... are controlled so as to be able to stop at the entrances and exits A, A, that is, the arcuate portions 3, 3.

Further, the arcuate portion 3 is provided with a first fixture 20 for positioning the cart 11A that is stopped at the arcuate portion 3.

As shown in FIG. 2, the first fixture 20 includes a pair of linear motion tools 1 arranged in a V-shape on the arc portion 3.
9 and 19 are provided.

In this example, the linear motion tool 19 is an electric advance/retreat tool 75 of a well-known structure that screws the rod 16 forward and backward by a screw mechanism driven by an electric motor, and an air cylinder, a hydraulic cylinder, etc. may also be suitably used. I can do it.

The linear exercise tool 19, as shown in FIG.
A roller-shaped pushing piece 1 is attached to the end of the rod 16 of the advancing/retracting tool 75 via a connecting piece 76 which is pivotally connected to be horizontally rotatable.
Install 7.

The connecting piece 76 is formed to have an I-shaped cross section in which an upper piece 76A and a lower piece 76B are connected by a standing piece 76C, and one end of the upper piece 76A is pivotally connected to the end of the rod 16, and the other end is connected to the pushing piece 17. is pivoted so that it can be rotated horizontally. Further, a slide piece 79 that slides on a guide rail 77 laid on a floor surface F or the like is fixed to the lower surface of the lower piece 76B. In addition, on the lower piece 76B side piece,
By protruding a locking portion 82 that can substantially abut against a stopper piece 80 erected along the guide rail 77, the end position of the extension is regulated.

Therefore, since the connecting piece 76 is pivotally supported by the rod 16, the linear motion tool 19 can tolerate misalignment between the moving direction of the rod 16 and the laying direction of the guide rail 77, and can smoothly guide the pushing piece 17. It can move forward and backward along the rail 77.

In addition, when a lateral load is applied to the pushing piece 17 of the linear motion tool 19, for example, in a direction approximately 45 degrees from the forward/backward direction,
The lateral load can be carried by the rail 77 and the slide piece 79. In this example, the rod 16
A bellows-shaped covering 81 is attached to the exposed portion of the guide rail 77 to prevent dew condensation, freezing, and adhesion of foreign matter such as dust.

Further, the linear exercisers 19, 19 are connected to the tension plates 46A, 46 of the trolley 11 at the end of the extension of the rod 16.
Hanging pieces 62, 6 installed vertically between B and before and after the running direction
The flat plate-shaped contact pieces 15, 15 provided in 2 and the push piece 1
7 and 17 are placed close to each other with a small gap between them. Therefore, when the truck 11A deviates from a predetermined stop position and stops, the truck 11A can be pushed to the predetermined stop position as the rod 16 extends, and at the end of extension of the rod 16, the truck 11A moves back and forth in the running direction. The trolley can be positioned by controlling the

Further, near both ends of the straight part 2, the straight part 2
The second one for positioning the carts 11B located at both ends.
A fixture 23 is provided.

In this example, as shown in FIG. 8, the second fixing tool 23 is formed of a screw advancing/retracting tool that is moved up and down manually. The stop portion 21 is provided below.

The second fixture 23 includes a base tube 85 welded to a fixture 84 that is attached to a floor surface F or the like, and a push-up piece 22 that is screwed onto the base tube 85.

The base cylinder 85 has a threaded portion 86A formed at the upper portion of the inner hole thereof, and a large diameter hole 86B connected to the threaded portion 86A via a stepped portion 87 below the threaded portion 86A.
Further, the push-up piece 22 has a body portion 89A protruding from the upper end of the threaded portion 89 that is threadedly engaged with the threaded portion 86, and
A conical head portion 89B that engages with the tapered hole 83 of the locking portion 21 is formed at the upper end of the body portion 89A.

Further, the push-up piece 22 has a ring body 93 connected to its body portion 89A with an annular handle 92 attached thereto by pin connection, and a threaded portion 89.
A disk-shaped stopper body 95 having a smaller diameter than the large-diameter hole 86B and capable of coming into contact with the stepped portion 87 is screwed to the lower end.

Therefore, in the second fixture 23, by rotating the handle 92, the push-up piece 22 moves from the lower end position where the ring body 93 and the base cylinder 85 come into contact, to the position where the stepped portion 87 and the stopper body 95 come into contact. It can be moved up and down freely up to the upper end position where it touches.

Also, due to the rise, the taper hole 83 and the head 89
B can be engaged with each other to position and fix the trolley 11B.

As shown in FIG. 9, the third fixture 26 has a base 96 that is attached to the side edge of the truck 11 in the running direction, and a protruding piece 25 that is screwed into the base 96.

The base 96 is screwed to the cart 11 at a flange portion 96A of the base in which a screw hole 97 is horizontally bored.

The protruding piece 25 is a rod-shaped body, and its body 25A
The screw hole 97 is formed by the screw portion 25B provided at one end.
At the same time, a handle 99 is integrally connected to the body 25A at the rear of the body 25A.

In this example, the handle 99 has a base tube portion 100 to which a manual handle lever is welded, and the base tube portion 10
The inner hole 101 of 0 is connected to the body 25A through the key 102.
By inserting it into the holder, it is connected so that it can rotate integrally.
Also, a disk portion 100A protrudes from the rear end of the base tube portion 100.
A locking groove 104 that engages with a locking tool 103 such as a ball plunger provided on the base 96 is slidably contacted, and the locking groove 104 engages with a locking tool 103 such as a ball plunger provided on the base 96, and is locked at the rearward end position of the protruding piece 25, that is, the position during normal operation. Tool 103 and locking groove 104
are engaged and prevented from rotating, thereby preventing the projecting piece 25 from protruding due to vibrations or the like when the trolley 11 travels.

Note that a contact plate 45 facing the protrusion piece 25 is attached to the adjacent cart 11, and the third fixture 2
6 is extended, the protruding piece 25 can press the adjacent carriage 11 via the contact plate 45. Therefore, the third fixture 26 supports the carriages 11B, 11B, . . . positioned by the second fixture 23.
The other carts 11C located between the carts 1B can be butted against each other, and the carts 11C can be fixed by eliminating movement gaps between the carts 11C.

Further, in this example, pallets 32 for storing cargo W are accommodated in the carts 11.

In this example, as shown in FIG.
09 and the standing wall portion 10.
A pair of upper wall frames 113 are provided on side wall bodies 111 erected at 9 to close the upper front and rear edges of the base 110 when expanded, and to which a foldable door body 112 is hinged so as to overlap the side wall bodies 111. .

In this example, the base 110 has a bottom frame 107 formed in a rectangular shape by a frame material such as a square steel pipe.
On both side edges of 07, there are raised walls 109 of small height,
109 has been established. In addition, the standing wall portion 109 is
Cylindrical pieces 116, 116 each having an inner hole 115 with an upper opening protrude from the upper portions of both ends, and the inner cylindrical pieces 116 form a fitting portion 117.

The base 110 also has a fixed plate 11 at its four corners, on which hook pieces 114 for hanging the pallet 32 are pivotally supported.
8 is installed.

As shown in FIGS. 11 and 12, the fixed plate 118 has bent pieces 118B,
118C is bent into a U-shape, and the board piece 11
8A, the inner surface of the bent piece 118B is attached to the bottom frame 10.
7. Arrange the bent pieces 118C along the respective corner portions of the upright wall portions 109 so as to match the top end heights, and fit the bent pieces 118C between the bottom frame 107 and the upright wall portions 109. Also, between the bent pieces 118B and 118C,
A U-shaped hook piece 114 that rotates outward at a substantially right angle is spanned through the through hole 122 of the board piece 118A.

Further, the fixing plate 118 has a fitting portion 1 that can be fitted into the fitting portion 117 by extending the lower ends of the substrate piece 118A and the bent piece 118B below the bottom frame 107.
form 19. Therefore, the base 110 has the insertion part 1
17 are fitted into the fitting portions 119, so that they can be stacked in multiple stages. Also, the base 1
An upper wall frame 113 is erected on 10.

The upper wall frame 113 has the insertion portions 11 at the lower portions of both ends.
A hanging piece 12 that provides a fitting part 120 that fits into 7.
At both ends of the side wall body 111, a pair of door bodies 112, 112 whose upper ends are at the same height as the side wall body 111 are attached via pivot fittings 123 such as hinges. It is foldably hinged to overlap the side wall body 111. Note that in this example, the door body 112 includes the upright wall portions 109, 109.
The upper piece 12 is approximately smaller than 1/2 of the horizontal length L2 between
The lower piece 127 is connected by a hanging piece 126A having a diameter of 5 and hanging slightly from the outer edge of the upper piece 125, and a hanging piece 126B hanging from the inner edge of the upper piece 125. 1
A lower door piece 129 is formed at a position away from 26B at approximately the same height as the lower end of the side wall body 111.

Therefore, when the fitting part 120 is fitted into the fitting part 117 and the pair of upper wall frames 113 are erected on the base 110, the door body 112 extends above the front and rear edges of the base 110 with its upper piece 125. , 125 can be closed by substantially butting the outer edges together, and the lower door body piece 129
This makes it possible to store cargo W of small height inside. Also, the pallet 32 is a part of the hanging piece 12 of the door body 112.
The height H1 to the lower end of 6B and the upper wall body 113
The total length including the total height H2 is smaller than the horizontal length between the side edges of the bottom frame 107, that is, the width L2 between the upright walls 109, 109.

Therefore, as shown in FIGS. 13 and 14, the door body 11
The upper wall frame 113 in which 2 and 112 are respectively folded,
The side wall body 111 is placed downward and its upper edge is placed on the upright wall portion 1.
By stacking them facing each other along 09, the hanging pieces 121, 121 and the door bodies 112, 11
2 overlap each other at their lower ends, and set the stacking height H3 to approximately three times the height of the frame material to the base 11.
0, and the stacking height H3 can be reduced.

As a result, by forming the height of the base 110 slightly larger than the height H3, the pallet 3
2 has upper wall frames 113, 113 inside the base 110.
The bases 110 can be stacked and stored in multiple stages while accommodating the bases 110, and the storage space can be significantly reduced.

Further, in this example, a hanging frame piece 130 is provided approximately at the center of the side wall body 111, and a rising wall portion 109 is provided below.
Between the upper frame pieces 131, 131, the hanging frame piece 13
They are connected by a U-shaped fitting 132 that has a square hole 133 for zero insertion. Also, one upper frame piece 131
A stopper 137 slides on a locking shaft 136 so that it can be inserted into and removed from a through hole 135 below the hanging frame piece 130.
is attached.

As shown in FIG. 15, the retainer 137 is
A guide groove 139 is formed on the side of the upper frame piece 31, consisting of a horizontal hole 139A along the upper frame piece 131, and a right-angled hole 139B that is bent at right angles from both ends of the horizontal hole 139A and terminates on the lower surface of the upper frame piece 131. At the same time, a lever piece 140 that slides along the guide groove 139 is screwed onto the locking shaft 136.

Further, at the end of the guide groove 139, a stopper is provided which is made of an elastic material such as rubber and has a substantially keyhole-shaped hole having a tapered opening, and can grip the lever piece 140.

Further, a U-shaped fitting 141 is attached to one side of the door body 112 to connect the upper pieces 125, 125 that are butted against each other, and the upper pieces 12 that are butted against each other are connected to each other.
5, 125 to fix the door body 112, 112 in a closed state by inserting it into the through hole provided in the end face of
A closure 142 having the same configuration as the retainer 137 is attached.

Furthermore, a substantially U-shaped hook piece 145 is attached to the upper piece 125 of the door body 112, and the other end of the hook piece 145 is attached to the upper surface of the side wall body 111, as shown in FIG. Hole 146A, 1
46B, the door body 112 can be fixed, for example, in an open state of about 45 degrees or in a folded state overlapping with the side wall body 111. In this example, as shown in FIGS. 4 and 5, the trolley 11
The bottom frame 36 and the intermediate frame 40 are provided with locking bodies 149 whose upper ends are shaped like a cone, and the base 110 of the pallet 32 is provided with locking bodies as shown in FIG. Fitting hole 15 that fits with 149
0 and 150 are respectively formed. Furthermore, trolley 11
The pallet 3 is positioned on the bottom frame 36, the intermediate frame 40 and by the locking body 149 at the front and rear of the running direction of the pallet 3.
Fixing fittings 151 . . . which prevent the locking body 149 from coming off from the fitting hole 150 by being close to the upper surface of the bottom frame 107 of Nos. 2 and 32 are attached. In this example, as shown in FIGS. 17 and 18, the fixing fitting 151 is pivoted via a sleeve 156 to a shaft piece 153 that is vertically installed on a mounting plate 155 that is attached to the reinforcing member 42, and is formed in a box shape. It has a bendable plate-like base 157, and has a holding part 157A close to the top surface of the bottom frame 107 at the front of the pivot point, and a handle part 157B at the rear of the pivot point.
are formed respectively. The mounting plate 155 also includes a first
As shown in FIG. 8, pieces 159, 159 are provided to restrict the rotation end position of the base body 157, and the base body 157 is substantially fixed at the end position by a locking body 160 such as a pole plunger.

[Effect]

However, in the rotating shelf device 1 of the present invention, when the pusher piece 17 of the first fixture 20 is retracted, the electric motor M
Drive 1. The electric motor M1 rotates the endless chain 12 along the rail member 7 through means such as a speed reduction mechanism and a clutch mechanism as described above, and also drives a plurality of carts 11 linked to the endless chain 12 at equal intervals. …
can run along the rail member 7. Further, during the traveling, the lower guide tool 10 of the trolley 11 rotates with its flange portion loosely fitting on both sides of the upper end of the lower rail 6 at a height exceeding the small gap L1, and the upper guide tool 9
The circumferential surfaces of the first roller bodies 50, 50 loosely fit the rail piece 30 of the upper rail 5. Therefore, the rail member 7 can be loosely fitted into the truck 11 by the upper and lower guide tools 9 and 10, and the truck 11 can be prevented from falling over. Furthermore, by disposing the upper surface of the second roller body 59 of the upper guide 10 with a small gap L1 away from the lower surface of the rail piece 30, it is possible to prevent the car body 61 from coming off the rails due to the vertical vibration of the bogie 11, thereby increasing its safety. It can be improved.

Further, the trolley 11 has its locking bodies 149, 149
By fitting the pallets 32 into the fitting holes 150, 150 of the base 110, the pallet 32 can be positioned and substantially fixed therein. It is possible to operate 11...

Further, when the truck 11 reaches the arcuate portion 3, that is, the entrance A for the cargo W, an appropriate detector is activated and the truck 11 is stopped. Further, the first fixture 20 operates on the cart 11A that stops at the arc portion 3. The first fixture 20 is a linear motion tool 19, 19
A roller-shaped pushing piece 17 extending each rod 16 and pivotally attached to the tip thereof can correct the stopping position of the carriage 11A and position the carriage 11A at a predetermined stopping position at its terminal position. In addition to facilitating the loading and unloading of cargo on the trolley 11A in an oscillating environment, it also allows for use in conjunction with an automatic transport device such as an unmanned forklift.

In addition, when the floor surface F is shaken by a large amount, the above-mentioned trolley 1
1... is stopped, and the first fixture 20 can immovably fix the trolley 11A within the small gap. In such a case, the second fixture 23 and the third fixture 26 are operated in sequence.

The second fixture 23 raises the push-up piece 22 by rotating the handle 92, and its head 89B fits into the tapered hole 83 of the locking part 21 of the trolley 11B located at both ends of the straight part 2. According to
The carts 11B... are positioned. In addition, the head 89
Since B has a tapered shape, it is possible to correct the positional deviation of the cart 11B by the radius dimension thereof.

Further, the third fixture 26 causes the protruding piece 25 to protrude by rotating the handle 99, thereby pressing the adjacent cart. Therefore, the third fixture 26
The cart 11B positioned by the fixture 23 of...
At the same time, other carts 11C located between the carts 11B can be brought together, and by eliminating movement gaps between the carts 11C, the cart 11C can be immovably positioned. Furthermore, the pallet 32 that is positioned and substantially fixed within the trolley 11 has fixing fittings 15.
1 is operated, the holding portion 157A is brought close to the upper surface of the bottom frame 107 by rotation of the handle portion 157B, and the pallet 32 is prevented from coming off from the locking bodies 149, 149.

As a result, each of the carts 11... is prevented from wobbling in the forward and backward direction of movement by the first to third fixing devices 20, 23, 26.
This is prevented by the endless chain 1 such as a drive chain.
2 can be prevented from being subjected to impact loads. Furthermore, the load collapses due to the rattling and the cart 11 of the pallet 32
In addition to being able to prevent falls, etc., and increasing safety,
This is to facilitate work associated with restarting operations.

〔Effect of the invention〕

As described above, the rotating shelf device of the present invention includes a plurality of carts that run on rail members arranged vertically in an oblong shape in which linear portions are connected by arcuate portions, and a plurality of carts located in the inner arc portion. A first fixture for positioning the carriages, a second fixture for positioning the carriages located at both ends of the straight section, and a press between other carriages located between the carriages positioned by the second fixture. Because the truck is equipped with a third fixture for positioning the truck, when the floor surface is relatively gently rocked, the truck does not fall or come off the rail member, and the first fixture allows the cargo to be stacked. The trolley can be positioned at a predetermined position at the loading/unloading area, making it possible to drive it. In addition, in the event of a large swing of the floor surface, by stopping the operation and operating the first to third fixing devices, the trolley can be easily and reliably positioned on the rail member, and the trolley can be moved forward and backward in the running direction. In addition to avoiding risks such as accidents caused by rattling and shaking, impact loads on the endless chain can be prevented, and damage to the drive device can be reduced. Furthermore, many effects can be achieved, such as preventing the load from collapsing due to the rattling.

[Brief explanation of drawings]

FIG. 1 is a plan view showing one embodiment of the present invention, and FIG.
The figure is a schematic plan view schematically showing the rail member and drive device, Figure 3 is a front view thereof, Figures 4-5 are a front view and side view showing the trolley, and Figure 6 is a schematic cross section showing the upper guide. 7 is a partial perspective view showing the first fixture, FIG. 8 is a partial sectional view showing the second fixture, FIG. 9 is a partial sectional view showing the third fixture, and FIG. 11 and 12 are perspective views and cross-sectional views showing the fixing plate, FIGS. 13 and 14 are perspective views and front views showing the pallet in its folded state, and FIG. 15 is an exploded perspective view showing the pallet. Perspective view shown, No. 16
The figure is a schematic plan view showing the action of the hook pieces, Nos. 17 to 1.
FIG. 8 is a cross-sectional perspective view and an operational view showing the fixing fitting. 2... Straight line part, 3... Arc part, 5... Upper rail, 6... Lower rail, 7... Rail member, 9...
...Upper guide, 10...Lower guide, 11...Dolly,
DESCRIPTION OF SYMBOLS 12... Endless chain, 17... Pushing piece, 20... First fixture, 21... Locking part, 22... Pushing up piece, 23... Second fixture, 25... Projecting piece ,2
6...Third fixture, M...Electric motor.

Claims (1)

[Claims] 1. A rail member having an elliptical shape in which both ends of parallel straight parts are connected by an arc part, and consisting of an upper rail and a lower rail arranged above and below with a gap in between, the upper rail and the lower rail. By arranging a plurality of carts each having an upper guide tool and a lower guide tool to be guided by the rail, and linking the carts to an endless string that is arranged along the rail member and rotated by an electric motor, an endless string can be created. While making it possible to run along with the lap of
a first fixture having a push piece disposed in the arcuate portion and aligning the trolley located in the arcuate portion by extension; a second fixture comprising a lifting piece that can be raised and lowered to engage with a locking part of the truck located at the rear and position the truck; A third fixture having a telescopic projecting piece capable of pressing the carriage and abutting the carriages at both ends of the straight section positioned by the second fixing unit and another carriage located between the carriages. shelving device.