JPH10250805A - Rotary storage shelf device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary storage shelf device in which a maintenance work of endless turning member, etc., circulating-moving shelves becomes easier. SOLUTION: In a rotary storage shelf device 1 in which shelf-hanging sprockets 5 are arranged at the upper- and lower parts in a frame 2, a chain 6 is laid between the sprockets, and shelves 3 are arranged vertically in a loop, a geared motor 13 serving as a driving source is arranged at the upper front of the frame to transmit the driving force of the geared motor 13 to the upper, shelf hanging sprocket 5, and a tensioning mechanism for changing the axis of rotation of the lower, shelf-hanging sprocket 5 to adjust the tension of the shelf-hanging chain 6 is provided at the lower, shelf-hanging sprocket.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary storage shelf device in which a plurality of shelves are vertically arranged in a loop inside a frame.

[0002]

2. Description of the Related Art FIG. 6 shows a conventional example of a shelf rotating mechanism.
The rotary storage shelf device 51 includes a frame 5 as an apparatus housing.
2 has an opening 52a for taking in and out of stored articles from a predetermined shelf, and a plurality of shelves 53 are vertically arranged in a loop inside the frame 52. A shelf fixing shaft 54 is fixed to both sides of the shelf 53, and the base ends of the first shelf support arm 55 and the second shelf support arm 56 are rotatably supported, and the other ends are adjacent to each other. Shelves 5
Together with the third first shelf support arm 55 or the second shelf support arm 56, the third shelf support arm 55 and the second shelf support arm 56 are connected to a shelf hanging chain 57 by a chain pin 59. The shelf hanging chain 57 is looped around a sprocket 58 disposed at the upper and lower parts. A shelf guide roller 70 is rotatably supported on the shelf fixed shaft 54, and one end of a shelf stabilizing arm 60 for stabilizing the posture of the shelf is fixed, and a shelf stable roller 61 is provided at the other end. It is pivoted freely. The shelf guide rollers 70 and the shelf stable rollers 61 are guide rails 6 arranged in a loop so as to correspond to the movement locus of the shelf fixed shaft 54.
It moves while rolling inside 2.

[0003]

FIG. 7A is a conceptual diagram showing a driving mechanism of the rotary storage shelf device in the conventional example. In the figure, a shelf hanging chain 57 'is wound around upper and lower sprockets 58', 58 ', and a drive chain 63 is connected to a large sprocket 64 disposed coaxially with a lower sprocket 58'. It is wound around a small sprocket 66 of a drive motor 65 provided.
Since the so-called elongation of the shelf hanging chain 57 'occurs with the passage of time, it is necessary to periodically adjust the tension, that is, the tension. Therefore, a tension mechanism 67 for adjusting the tension of the chain by changing the axis of the lower sprocket 58 'is provided. In this case, if the tension of the suspension chain 57 'is adjusted by the tension mechanism 67, the tension of the drive chain 63 also changes. Therefore, the tension of the drive chain 63 must also be adjusted. Has a problem that the maintenance work of the chain takes time and effort.

FIG. 7 (b) is a conceptual diagram of the vicinity of the lower sprocket 58 shown in FIG. 6, but in preparation for adjusting the tension of the shelf chain 57 ', the guide rail 62'.
The joint between the linear part and the rotating part is provided with a gap 69 that can be adjusted to increase or decrease. That is, as described above, the shelf 53 is connected to the shelf hanging chain 57 by the first shelf support arm 55 and the second shelf support arm 56. Since these arms have a constant length, FIG. )
When the axis of the lower sprocket 58 'changes due to the adjustment of the tension mechanism 67, the rotational movement locus of the shelf fixed shaft 54' also changes, and the shelf guide roller 70 'attached to the shelf fixed shaft 54' is guided. Guide rail 6
It is necessary to adjust the position of the rotating portion 2 'at the same time, and as in the case of adjusting the two chains, there is a problem that the maintenance work is troublesome.

The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a rotary storage shelf apparatus which facilitates maintenance work of an endless rotating member for circulating a shelf. I have.

[0006]

The present invention uses the following means to achieve the above object. It has a frame that forms an opening on the front surface, a ring is disposed at the upper and lower parts in this frame, and an endless rotating member is looped around the ring between the rings, via a shelf support arm mechanism. A plurality of shelves are connected to the endless rotating member by a shelf fixing shaft formed on a side surface of the shelf, and the endless rotating member is rotationally driven by a driving source to circulate a desired shelf to the opening. A rotary storage shelf device for moving, wherein the drive source is housed in a convex portion formed on an upper front surface of the frame to transmit a driving force of the drive source to the upper wheel body, and A rotary storage shelf device provided with a tension mechanism for adjusting the tension of the endless rotating member by changing the rotation axis thereof at a portion of the wheel body. Further, a guide rail for guiding the movement of the shelf fixed shaft is provided, and the shelf support arm mechanism has at least first and second two shelf support arms, and the first and second shelf support arms and The rotary storage shelf device provided with a shelf fixed axis center variable means for changing the relative position of the shelf fixed axis to the axis.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an external view of a rotary storage shelf device according to the present invention, and FIG.
1B is a front view, and FIG. 1C is a side view. FIG. 2 is a cross-sectional plan view for explaining the configuration of the rotary storage shelf device, FIG. 3 is a vertical sectional side view of the same, FIG. 4 is an explanatory diagram showing a lower part of the shelf chain roller guide, and FIG. 4B is a side view, FIG. 4C is a bottom view, and FIG. 5 is an external perspective view of a tensioning mechanism.

In FIG. 1, a rotary storage shelf device 1 has a vertically long box-shaped frame 2, and an opening 2 a is formed on the front surface of the frame 2. Next, the left side 2d of the frame 2
And a ring body of the same shape inside the right side surface 2e,
Shelf-hanging sprockets 5, 5 are vertically arranged, and a shelf-hanging chain 6 is looped around as an endless rotating member. The shelves 3 are connected to the shelf suspension chain 6 via a shelf support arm mechanism described later, and are arranged in a vertical loop. The large drive sprocket 4 is coaxially attached to the upper shelf hanging sprocket 5. On the other hand, a geared motor 13 is accommodated as a drive source in a motor housing frame 2b disposed on the upper portion of the frame 2, and a small drive sprocket 16 and a large drive sprocket 4 attached to both ends of a drive shaft 14 are provided. And the drive chain 17 is wound around. In the above configuration, the power switch 31 and the elevating switch 32
The shelves 3 are circulated and moved through the respective drive transmission members by the operations such as above, and the stored articles are taken in and out of the desired shelves 3 through the openings 2a.

Hereinafter, the rotary storage device according to the present invention will be described in detail. In FIG. 2, reference numeral 35 denotes a shaft holding member, which fits into the sprocket support member 24 and holds the sprocket support shaft 8 at its distal end (see FIG. 5 described later). As shown in FIG. 3, the shaft holding member 35 is attached to the upper end and the lower end of the shelf chain roller guide 34. As shown in FIG. 2, the sprocket support shaft 8 rotatably supports the sprocket shaft 5 of the shelf hanging sprocket 5 and the large driving sprocket 4 via a bearing 9. Similarly, the lower sprocket support shaft 8 rotatably supports the sprocket shaft 7, that is, the shelf-hanging sprocket 5. The lower shaft holding member 35 is configured to be able to slide up and down in the sprocket support member 24 as a tensioning mechanism for adjusting the extension of the shelf suspension chain 6. This will be described later.

As shown in FIG. 3, chain pins 33 for connecting shelf support arms, which will be described later, are attached to the shelf hanging chains 6 in accordance with the arrangement pitch of the shelves 3. At the tip of the chain pin 33, a shelf-suspended chain roller 20 is rotatably supported as shown in FIG. 2, and a shelf-suspended chain roller guide 34 for guiding the up-and-down movement thereof is provided in a straight line of the shelf suspension chain 6. Arranged over the part. The shelf chain roller guide 34 is fixed to the plurality of support beams 25, and the above-described sprocket support member 24 is fixed to the upper and lower portions thereof by welding or the like.

Next, the driving mechanism of the chain 6 will be described. On the upper front surface of the frame 2, a convex motor housing frame 2b (see FIG. 1 and the like) is formed. In the motor housing frame 2b, a bracket 10 is attached to the frame front surface 2c on the frame left side surface 2d side,
A geared motor 13 with a speed reducer is fixed to the bracket 10 via a motor base 12. The drive shaft 14 for transmitting the drive of the geared motor 13 has a length extending from the left side surface 2d of the frame to the right side surface 2e of the frame, and a portion on the right side surface 2e of the frame includes a bearing 15 mounted on the bracket 11. Supported. The small driving sprocket 1 is provided at both ends of the driving shaft 14.
6 is attached, and this drive small sprocket 1
A drive chain 17 is looped between the large sprocket 6 and the large drive sprocket 4.

Next, the shelf support arm mechanism will be described. The shelf support arm mechanism is provided with a shelf fixed axis variable means for changing the relative position between the first and second shelf support arms and the axis of the shelf fixed shaft at the linear movement part and the rotation movement part of the shelf. ing. In FIG. 3, a large shelf support arm 18 serving as a first shelf support arm and a shelf support swing arm 19 serving as a second shelf support arm are formed by a pair of arm groups provided in a number corresponding to the number of shelves 3. The base end thereof is connected to the chain pin 3 of the shelf suspension chain 6 together with the shelf supporting large arm 18 or the shelf supporting swing arm 19 of the adjacent shelf 3.
At 3 it is connected rotatably. The shelf support large arm 18
A substantially S-shaped plate member, which is rotatably connected to the other end of the shelf support swing arm 19 at the center thereof by an arm connecting pin 23. One end of a free link arm 36 is rotatably connected to the other end of the shelf supporting large arm 18 by a free link connecting pin 37. The other end of the free link arm 36 is supported by a shelf fixed shaft 21 fixed to both side surfaces of the shelf 3.

The shelf support arm mechanism is constructed as described above, and the free link arm 36 performs a linking movement at the rotationally moving portion of the shelf 3 to determine the relative position between the arm connecting pin 23 and the axis of the shelf fixing shaft 21. Change. In other words, the free link arm 36 is moved by the distance that the shelf fixing shaft 21 is separated from the shelf hanging sprocket 5 at the rotational movement site.
Rotates to compensate for the distance. in this case,
The rotation angle of the free link arm 36 gradually increases as it moves from the linear movement part to the rotation movement part, and conversely, the rotation angle of the free link arm 36 gradually decreases as it moves from the rotation movement part to the linear movement part. Become. With this mechanism, even if the position of the shelf hanging sprocket 5 is slightly lowered, only the rotation angle of the free link arm 36 is reduced, and the shelf 3 can be rotated without lowering the guide rail 29 described later. .

As shown in FIG. 2, a shelf guide roller 26 and a triangular shelf stabilizing arm 27
Is attached. The shelf stabilizing arm 27 has a fixing screw 30
The shelf stabilizing arm 27 is fixed to the shelf fixing shaft 21 so as to always make a constant angle with the linear direction of the shelf hanging chain 6.
The shelf stabilizing roller 28 and the auxiliary roller 28a are attached to the tip of the. The guide rail 29 for guiding these rollers includes a shelf guide rail portion 29a for guiding the movement of the shelf guide roller 26, a shelf stable roller 28 and an auxiliary roller 28a.
And a guide part 29b for guiding the movement of the shelves, and the linear part and the rotating part can be separated by the joint part 29c shown in FIG.

The shelving chain roller guide 34 has a shape in which wings are spread on both sides of a base portion having a U-shaped cross section (FIG. 4).
(See (c)), and a sprocket support member 24 (see FIG. 2) is fixed to the U-shaped section by welding or the like. The sprocket support member 24 has a protruding portion 24a protruding horizontally from the floor at one end thereof, and a hole (not shown) is formed in the protruding portion 24a.
Are fixed by welding or the like. This nut 24b has
The bolt 38 is screwed as shown in FIG. The bolt 38 is used to hold down the shaft holding member 35 that holds the shelf hanging sprocket 5 at the tip during tension adjustment. In addition, the sprocket support member 24 includes
Hole 24 for fixing shaft holding member 35 by screwing
c, 24c are drilled.

The shaft holding member 35 slidably fitted to the sprocket support member 24 has an opening 35a and an elongated hole 3a.
5b and 35b are formed, and a sprocket support shaft 8 is held at a tip portion thereof. The bored holes 35b, 35b are fixing holes. When adjusting the tension, the shaft holding member 35 can slide by the length of the hole 35b. Bolts 39a, 39a penetrating the elongated holes 35b, 35b and the holes 24c, 24c of the sprocket support member 24, and nuts 39b, 3 on the back surface
9b [see FIG. 4 (b)]
The shaft holding member 35 is fixed to the sprocket support member 24.

Next, the operation of adjusting the tension of the shelf hanging chain 6 will be described. First, the bolts 39a, 39a
(See FIG. 5) so that the shaft holding member 35 can slide inside the sprocket support member 24. Next, the bolt 38 screwed into the protruding portion 24a of the sprocket support member 24 is rotated in the forward direction, and the upper end 35a of the bolt 38 presses the upper surface 35c of the shelf holding member 35, whereby the shelf holding member 35 is pressed. 35 is slid to a position where the hanging chain 6 obtains a predetermined tension. By fixing the shelf holding member 35 to the sprocket support member 24 with the bolts 39a, 39a and the nuts 39b, 39b at this position, the tension adjustment of the shelf suspension chain 6 is completed.

By arranging the tensioning mechanism for adjusting the tension of the hanging chain 6 at the lower part of the apparatus, the workability is improved and the geared motor 13 as the driving source is placed at the upper front of the apparatus. Since the drive chain 17 for disposing and transmitting the drive force is attached to the large drive sprocket 4, that is, the upper shelf hanging sprocket 5, it is not necessary to adjust the drive chain 17 at the same time. Is shortened. Also,
Although the axial position of the shelf hanging sprocket 5 fluctuates due to the tension adjustment of the shelf hanging chain 6, the fluctuation is absorbed by the link motion of the free link arm 36 as described above. It is not necessary to adjust the clearance at the joint 29c between the rotating part and the rotating part, and the maintainability of the apparatus is further improved.

The preferred embodiment of the rotary storage device according to the present invention has been described above. However, the present invention is not limited to the configuration, the structure, the mounting position, etc. of each member, which are described in the drawings. Various design changes are possible without departing from the gist of the present invention.

[0020]

According to the rotary storage device according to the present invention, the following effects can be obtained. (1) By providing a tension mechanism for adjusting the tension of the hanging chain on the lower sprocket portion, the workability is improved, and a driving source for the hanging chain is provided on the upper front of the apparatus, and the drive is performed. By adopting a configuration in which the drive chain that transmits force is hung on the upper sprocket, it is not necessary to adjust the drive chain at the same time.
The maintainability of the device is improved. (2) In addition, the shelf support arm mechanism that supports the shelf is provided with a shelf fixed axis center variable unit that changes the relative position of the shelf fixed axis with the axis, so that the shelf fixed axis generated by adjusting the tension of the shelf suspension chain. Since it is possible to absorb the variation of the movement trajectory of the heart by the shelf fixed axis center variable means, it is not necessary to adjust the gap at the joint between the linear part and the rotating part of the guide rail, and the maintainability of the device is improved. Further improve.

[Brief description of the drawings]

1 is an external view of a rotary storage shelf device according to the present invention, wherein FIG. 1 (a) is a plan view, FIG. 1 (b) is a front view, FIG.
(C) is a side view.

FIG. 2 is a cross-sectional plan view illustrating the configuration of the rotary storage shelf device.

FIG. 3 is a vertical sectional side view for explaining the configuration of the rotary storage shelf device.

4A and 4B are explanatory diagrams showing a lower portion of the shelf chain roller guide; FIG. 4A is a front view, FIG. 4B is a side view, and FIG. 4C is a bottom view.

FIG. 5 is an external perspective view of a tensioning mechanism.

FIG. 6 is an explanatory view of a conventional rotary storage shelf device.

FIG. 7 is an explanatory diagram of a conventional rotary storage shelf device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotary storage shelf apparatus 2 Frame 3 Shelf 4 Large sprocket for driving 5 Sprocket for hanging a shelf 6 Shelf hanging chain 7 Sprocket shaft 8 Sprocket support shaft 9 Bearing 10, 11 Bracket 12 Motor base 13 Geared motor 14 Drive shaft 15 Bearing 16 Drive Small sprocket 17 Drive chain 18 Shelf support large arm 19 Shelf support swing arm 20 Shelf suspension chain roller 21 Shelf fixed shaft 23 Arm connecting pin 24 Sprocket support material 25 Support beam 26 Shelf guide roller 27 Shelf stable arm 28 Shelf stable roller 28a Auxiliary roller 29 Guide rail 34 Shelf suspended chain roller guide 35 Shaft holding member 36 Free link arm 37 Free link connecting pin 38 Bolt 39a Bolt

Claims (2)

[Claims] 1. A frame having an opening formed on a front surface thereof, and a ring body is disposed at an upper portion and a lower portion of the frame, and an endless rotating member is looped around the ring body to support the shelf. A plurality of shelves on the endless rotating member via an arm mechanism,
A rotary storage shelf device connected by a shelf fixed shaft formed on a side surface of the shelf, and rotationally driving the endless rotating member by a drive source to circulate and move a desired shelf to the opening; The driving source is housed in a convex portion formed on the upper front surface of the frame, and the driving force of the driving source is transmitted to the upper wheel body, and the rotation axis of the driving source is changed to the lower wheel body. A rotating storage shelf device provided with a tension mechanism for adjusting the tension of the endless rotating member. 2. A guide rail for guiding movement of the shelf fixing shaft is provided, wherein the shelf support arm mechanism has at least first and second two shelf support arms, and a first and second shelf support arm. 2. The rotary storage shelf apparatus according to claim 1, further comprising a shelf fixed axis variable means for changing a relative position between a shelf support arm and an axis of the shelf fixed axis.