JPS62196207A - Rotary type article storing shelf device - Google Patents

Abstract

PURPOSE:To make the captioned device thin with a simple structure by supporting each of article storing shelves through two cranks, and guiding respective crank shaft support members with guides arranged along a running way when an article runs on the front and rear sides. CONSTITUTION:Each of article storing shelves 4 is interlocked with and supported by cranks 10 and 11 which are journaled through a journaled part 11b at its rear end of one side part and a journaled part 10b at its front end of the other side part, respectively. Other journaled parts 10a and 11a of the crank 10 and 11 are journaled to chains 2 and 3. One of the parts 10b and 11b of the cranks 10 and 11 on the shelf side is guided and made run by a guide rail 13 disposed on the ascending side of a conveyer while the other is guided and made run by a guide rail 12 on the descending side. Openings 1a and 1b for taking an article in and out are provided on both sides of an box body 1. Under the above arrangement, each shelf is always maintained horizontally and turned upside down at the front and rear side positions of the way. Therefore, the depth of the box body 1 can be made thin and compact with a simple structure so that the article is taken in and out freely from both sides.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention makes it possible to easily and appropriately take in and take out articles from a predetermined location by sequentially moving around a large number of storage shelves holding various stored articles. This invention relates to improvements to a rotating storage shelf device that can be carried out.

[Conventional technology]

This type of rotating storage shelf device is suitable for use as a storage shelf for storing wafer cassettes in a semiconductor factory, a parts storage shelf for supplying parts to a robot in a general ballpark, etc., and has been used in various ways. The composition is known.

An example of this will be briefly explained using Fig. 3. In the figure, reference numeral 1 indicates an opening 1a for loading and unloading goods in the middle of the front side of the device. , a pair of chains 2 on the left and right as a vertical conveyor with an endless belt
．． 3 is on top of each.

Lower sprockets 2a, 2b: are arranged and set in tension between 3a, 3b. And these left and right chains 2.
Between 3 and 3, various articles 4a are placed between u and ? A plurality of storage shelves 4 are installed at predetermined intervals for storage. Here, the rear end of this storage shelf 4 is rotatably supported on one chain 2 via a spindle 5, and the other side is supported in a substantially L-shape. The arm 6 is rotatably supported by the other chain 3 via a support shaft 6a at the upper end of the arm 6, and is configured to always maintain a horizontal state when traveling in circles.

In addition, 7 in the figure applies rotational driving force from a drive source (not shown) to the sprocket (2b) on each chain 2.3 side.

The chains 2.3 on both sides are arranged with their height positions shifted in order to hold each storage shelf 4 in a horizontal state. It is set up.

[Problem that the invention seeks to solve]

However, according to the rotary storage shelf device having the above-mentioned configuration, the horizontal part of the L-shaped support arm 6 that suspends and supports the storage shelf 4 is located at the opening la in order to always support the storage shelf 4 in a horizontal state. When the storage shelf 4 runs on the rear side of the chain 2.3, it passes through the space between the chains 2.3, so that the vertical It is necessary to increase the depth and length of the conveyor section, which is a problem when trying to make the entire device smaller and thinner, and furthermore, the opening 1a for loading and unloading the loaded articles 4a can only be provided in one direction. There were also some glitches. In addition, the storage shelf 4
Depending on the size of the items placed thereon, they may interfere with each other, so direct shaft coupling may not be possible in some cases, and there are also problems such as the left and right drive force transmission mechanisms becoming complicated.

Furthermore, there is a structure in which the shelf is connected and supported by Miki's support arms to each chain, and guide means are provided on both sides to keep the shelf always in a horizontal position of 7 g. It is known from Japanese Patent No. 30-93604, etc., and when the shelf runs on the rear running path, the shelf can be placed in a backward-facing state as opposed to the front running path, but its structure is complicated and the manufacturing process is slow. However, the assembly work is troublesome and complicated, which poses a serious problem in practical use.Therefore, it is necessary to take some kind of countermeasure that can eliminate the above-mentioned problems with a simpler structure.

The present invention has been made in view of the above-mentioned circumstances, and it is possible to shorten the length of the device in the depth direction, thereby making the entire device smaller and thinner, and further, to allow articles to be taken in and out of storage shelves from both sides of the device in the front and rear directions. It is an object of the present invention to provide a rotary storage shelf device capable of performing the following operations.

[Means for solving problems]

The rotary storage shelf device according to the present invention has a plurality of storage shelves constructed between the left and right vertical conveyors by an endless belt and constantly traveling in a circular state in a circular manner at different positions in the running direction of the left and right vertical conveyors. A pair of cranks are connected and supported through a pair of cranks, one of which is pivotally supported at the rear end of the m section of the storage shelf, and the other is pivotally supported at the front end of the other side, and one of the shaft supports on the shelf side of each of these cranks. , with a guide placed on the rising side of the vertical conveyor,
The other is configured to be guided and guided by a guide provided on the descending side, and openings are provided on both sides of the mounting body in the front and rear directions for loading and unloading items onto the storage shelf. .

[Effect]

According to the present invention, the storage shelf is installed and supported via two cranks for each conveyor, and when traveling around the front running path of the device, the shaft support of one crank is connected to the rear running path of the device. When traveling in circles, the shafts of the other crank are guided and supported by respective guides along the running path, so that the vehicle can always maintain a horizontal state while traveling in circles.

〔Example〕

Hereinafter, the present invention will be explained in detail using embodiments shown in the drawings.

Figures 1 and 2 show an embodiment of the rotating storage shelf device according to the present invention, and in these figures, the same or corresponding parts as in Figure 3 described above are designated by the same numbers. The explanation will be omitted.

Now, according to the present invention, a plurality of storage shelves 4, which are constructed between the left and right vertical conveyors by the chains 2 and 3 and are always run in a horizontal state, can be moved in different running directions of the left and right chains 2.3. It is pivotally supported at the position via the pivot supports 10a and lla, and one is pivoted at the rear end of m portions of the storage shelf 4.
A pair of cranks 10 and 11 are connected and supported, the other being pivotally supported at the front end of the other side via a shaft support 10b, and a shaft support fob on the shelf side of each of these cranks 10 and 11 is supported.
One side of the llb (1lb) is guided by a guide rail 13 disposed on the ascending side of the conveyor, and the other (iob) is guided by a guide rail 12 disposed on the descending side of the conveyor. The storage shelf 4 is characterized in that openings 1a and 1b are provided on both sides in the front and rear directions for loading and unloading articles 4a onto the storage shelf 4. In addition, 1 in the figure
4 is a rotational drive source, L5a, 15b are each sprocket 7b
, 3b; is a connecting shaft that directly connects 2a and 3a to transmit power.

According to such a configuration, the storage shelf 4 is supported on each chain 2.3 via two cranks 10 and 11, and when traveling around the front running path of the device, one of the storage shelves 4 is supported. When the shaft support 11b of the crank 11 travels around the rear traveling path of the device, the shaft support 10b of the other crank 10 is connected to the guide rail 13 along the travel path.
．． By being guided and supported by 12, it is always kept in a horizontal state as it travels in circles.

Therefore, according to the device of the present invention having such a configuration, since the storage shelf 4 can be run with the front running path and the rear running path facing in opposite directions, the sub-e2 casing 7 on which the chain 2.3 is stretched can be moved. 2a, 2b; The diameter of 3a, 3b can be made smaller to make the storage shelf 4 thinner in the front-rear direction, that is, in the depth direction of the apparatus carcass 1, and moreover, the articles 4a can be taken in and taken out from both sides of the carcass 1 in the front-rear direction. The openings 1a and lb can be cut out, and the chain 2.3 and crank 10°11 can be cut out.
can be configured so that the sprockets do not pass through the openings 1a, lb, and the left and right sprockets 2a, 3a; 2b,
3b can be directly connected with the transmission shafts 15b and 15a to perform power transmission.

Note: The present invention is not limited to the structure of the embodiments described above, and the shape, structure, etc. of each part may be modified or changed as appropriate.
Furthermore, the stored articles can be used in various fields.

〔Effect of the invention〕

As explained above, according to the rotary storage shelf device according to the present invention, a plurality of storage shelves installed between the left and right vertical conveyors by an endless belt and always traveling in a horizontal state can be connected to the left, right, left, and right vertical conveyors.
The right conveyor is connected and supported via a pair of cranks, which are pivotally supported at different positions in the running direction, one at the rear end of the shelf side, and the other at the front end of the other side. One of the shaft supports is guided by a guide placed on the ascending side of the conveyor, and the other is guided by a guide placed on the descending side of the conveyor. By providing an opening for loading and unloading the conveyor, it is possible to reduce the diameter of the sprockets that make up each conveyor, despite the simple and inexpensive structure, and this allows the device to be made thinner in the depth direction. 0
(2) It is possible to freely take in and take out articles from both sides in the front and rear directions, which is not only advantageous in practice, but also has various excellent effects such as being able to directly connect the juxtaposed conveyors on both sides and drive them at the same time.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing an embodiment of a rotating storage shelf device according to the present invention, Fig. 2 is a schematic side view for explaining its operating state, and Fig. 3 is a schematic perspective view showing a conventional example. It is. 1-Φ...Device housing, la, Lb...opening, 2,
3... ψ Chain as an endless band constituting a vertical conveyor, 4 See storage shelf, 4a... Stored items, 10
．． 11-...Crank, 10b, 11. b---Axle support, 12.13---Guide rail.

Claims (1)

[Claims] In a rotary storage shelf device having a plurality of storage shelves that are installed between a pair of left and right vertical conveyors by an endless belt within the device housing and are always run in a horizontal state, the storage shelves include:
The cranks are pivotally supported at different running direction positions of the left and right vertical conveyors, and connected and supported via a pair of cranks, one of which is pivotally supported at the rear end of one side of the storage shelf, and the other is pivotally supported at the front end of the other side.
One of the shaft supports on the shelf side of each of these cranks is configured to be guided by a guide disposed on the ascending side of the vertical conveyor, and the other is guided by a guide disposed on the descending side,
The rotary storage shelf device is characterized in that the device casing is provided with openings on both sides of the storage shelf in the front and back direction for loading and unloading articles onto the storage shelf.