JPS63101203A - Transfer device in circulation type storage shelf - Google Patents

Abstract

PURPOSE:To stably and parallelly shift a storage shelf by connecting a chain on which a storage shelf is mounted directly with the second chain by means of a connecting bar and so mounting one end of a link as to be free in rotation on the chain so as to form, at all times, a link mechanism having parallelogram of a parallel part of these two chains, a connecting bar and a link. CONSTITUTION:A storage shelf 10 is mounted on a chain 11 and the chain 11 and the second chain 12 are connected directly with each other with a connecting bar 20. Further one end of each link 14, 24 is mounted in possible to rotate on the chain 11. And a link mechanism having parallelogram at all times is formed of the parallel part between the chain 11 and the second chain 12 and the connecting bar 20 and the links 14, 24. Thereupon when the chain is travelled, this link mechanism rotates while holding the parallelogram at all times and the load distribution of the storage shelf 10 is maintained at a specified value. Accordingly, the storage shelf 10 can be shifted parallelly in the stable condition. Further since it doesn't cause pulsation and vibration, the noise occurrence can be also prevented.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a transporting device for a circulating type storage shelf in which each shelf is parallel to each other and circulates while maintaining the shelf itself horizontally. Regarding.

[Conventional technology]

The most typical example of a shelf that circulates plywood while keeping it horizontal is the one seen in multi-storey parking lots. The chain always hangs downward from the upper sprocket due to the weight of the base plate and the vehicle, and the base plate always moves in parallel with the running of the chain.

However, when the chain connecting the plywood in the multi-story parking lot engages with the sprocket and bends, the pulsation of the chain causes the plywood to swing greatly,
Even when the running speed of the chain is slow, this oscillation increases as the chain pitch increases, and there is a tendency for the noise caused by the hitting sound when the chain and sprocket mesh to increase. This caused large swings due to inertia when starting and stopping movement.

A merry-go-round rotating storage device proposed in Japanese Utility Model Publication No. 58-16961 is known as a representative example of a method for protecting against the above-mentioned problems, but the chain and the storage shelf are connected to an arm, and the chain is connected to the chain. The pitch is large, and the current situation is that it cannot be said to have solved the problems of chain pulsation, oscillation, and noise as described above.

In addition, a link mechanism was used to forcibly keep the shelves parallel and circulate them, as described in Utility Model Application No. 56-1440.
An article storage device disclosed in Japanese Patent No. 07 is known. In this device, a carrier corresponding to a shelf is supported in an endless state such as a chain by a pair of upper and lower support arms, and in order to keep the carrier parallel, a parallel holding arm is connected at the tip of the support arm, and the parallel holding arm is connected to a circular orbit. It was made to run along the following lines.

In the above device, the running performance is difficult due to the misalignment of the relative position between the annular track and the running chain, and the pitch of the chain is large, so the sprocket in the rotating part is large and centrifugal force is generated in the rotating part. As a result, the above-mentioned oscillations become large, causing the entire device to oscillate, resulting in a lack of stability and, therefore, the disadvantage that the entire device also becomes larger.

[Problem that the invention seeks to solve]

As mentioned above, with conventional movable shelves, due to chain pulsations and inertia when starting and stopping, strictly speaking, the movable shelves cannot be maintained horizontally, and the shelves sway with the vibrations caused by chain pulsations. There also remains the problem of moments generated by unbalanced loads of articles placed on top.

The present invention aims to solve the above-mentioned problems, and even when the distance between adjacent shelves becomes closer in the vertical or horizontal direction due to the rotation of the sprocket at the rotating part, the chain to which the shelves are attached is able to move forward. The purpose of this system is to allow one shelf to rotate more quickly than the following shelf and come into contact with the articles loaded on the subsequent shelf, and the chain pitch is set to multiple pitches for one shelf, and the rotation speed is The purpose is to reduce centrifugal force by making the process quick and smooth.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the transfer device for circulating storage shelves according to the present invention holds a large number of shelves between endless chains, and moves the shelves in the vertical direction. Alternatively, in a device that circulates horizontally and vertically and maintains each shelf parallel during the circulation, one end of a link is rotatably attached to the chain, and the other end of the link is one end of a connecting rod. The other end of the connecting rod is rotatably supported on a link rotatably attached to a second chain running parallel to the chain at the same speed. The distance between the sprocket axes of the chain and the sprocket axis of the second chain in the height direction is the same as the length of the connecting rod described above, and for each column, the chain described above and the second chain are The parallel part, the connecting rod, and the link always form a link mechanism consisting of a parallelogram.

[Effect]

In the present invention, links are attached to an endless chain at a predetermined pitch, and a shelf is held by pins pivotally supported by the links. A second chain that can run at a high speed is provided, a link installed at a position several pitches apart from the first chain is attached to the second chain, and the link attached to the second chain and the link of the chain are connected by a connecting rod. The length of the connecting rod is the same as the distance between the links attached to the chain and the second chain, respectively, and the chain and the second chain, which run parallel to each other, are connected to each other by a sprocket. The sprocket of the second chain is arranged at a higher position than the sprocket of the aforementioned chain, the distance between the axes of both sprockets is the same as the length of the aforementioned connecting rod, and the aforementioned chain and the second chain are connected to the connecting rod and the chain. Since the attached link and the link attached to the second chain constitute a parallelogram link mechanism, the load of the storage shelf held by the pin supported by the chain link is equal to the load of the above chain. and the second chain, the load on each chain can be reduced, the chain pitch can be reduced, and the radius of rotation of each sprocket can be reduced. The shelf held by the chain is designed to rotate greatly and quickly with the rotation angle of the chain and the second chain.In the straight running section, the shelf is held suspended by the links and connecting rods of the second chain, and each It is designed to maintain the parallel state of the shelves.

〔Example〕

Embodiments of the present invention will be explained based on the drawings. FIGS. 1 to 3 show a first embodiment in which storage shelves move and circulate in the vertical direction, and FIGS. 4 to 7 show a first embodiment in which storage shelves move and circulate in the vertical direction. A second embodiment is shown in which the storage shelves move and circulate in the horizontal and vertical directions, and in the description, parts having the same or equivalent functions will be described using the same reference numerals.

The first embodiment will be described based on FIGS. 1 to 3. In the figures, 1 is a case for storing articles, and the case 1 is integrated with a frame 2 and an outer panel 3, and the front side is provided with a control panel 4, a control room 5, a motor room 6, a work table 7 for taking in and taking out articles, and a window 8 opened in the work table 7 for taking in and taking out articles.

An endless chain 11.11 is disposed on both sides of the article storage case 1, and an endless second chain 12.12 is disposed parallel to the outside of the chain 11.11, and the chain 11 is connected to an upper shaft. 13, lower shaft 13' (lower shaft 1
Sprocket (not shown) attached to 3' (not shown)
The hooks are passed and the chains 11 are provided on both sides.
11 has a large number of storage shelves at a constant pitch 10.10.1
0. ...... are installed in parallel.

Storage shelf described above 10.10.10. To explain the attachment of the chain 11, attachments 14a, 14a, 14a, . . . are attached at a constant pitch.
... are fixedly attached to the chain 11, and the attachments 14a, 14a, 14a, ...
are the attachments 14b, 14b with multiple pitches, respectively.
, 14b, . . . are fixedly installed. Therefore, the attachments 14a, 14a, 14a, . . .
- and attachment 14b.

14b, 14b, . . . are mutually arranged at a plurality of pitches in a constant state.

The above-mentioned attachments 14a and 14b are arranged as one unit in large numbers, and means for holding and transporting one storage shelf is provided by the one unit of attachments 14a and 14b. For simplicity, a unit of holding and transporting - storage shelves will be described.

Attachments 14a and 14b have fixed length links 15'a and 15b, respectively, at one end of which is rotated by pins 16a and 16b (pin 16a is hidden by link 25, which will be described later, and is not shown in the drawing). The other ends of the links 15a and 15b are overlapped with each other, and the connecting rod 2 is connected by the same pin 17.
It is rotatably supported along with one end of 0. The pin 17 is fixed to a mounting plate 18 provided on the side plate 10a of the storage shelf 10.

Further, 21 is a roller rotatably attached to the pin 17 described above.

The above-mentioned second chain 12 has a length of the above-mentioned connecting rod 20 on the outside of the chain 11.
The sprocket 22. is installed on the shaft 23 of the chain 11, which is located above the sprocket shaft 13 of the chain 11 by the distance between the pivot points of the links at both ends, which is simply referred to as the length of the connecting rod 20 as described above. 22' (lower sprocket 22' is not shown), and the chain 1
It is made to run parallel to 1.

The second chain 12 has the same pitch as the attachments 14a and 14b provided on the chain 11 described above, and the distance between the sprocket shaft 13 of the chain 11 and the shaft 23 of the sprocket 22 of the second chain 12 @H. Attachments 24a and 24b are fixed to the second chain 12 at positions separated by a corresponding distance, that is, a distance corresponding to the length of the connecting rod 20 described above, and the attachments 24a and 24b are
Links 25a and 25b having the same length as 15a and 15b described above are rotatably supported on 4a and 24b, respectively,
The other ends of the links 25a and 25b are aligned and overlapped, and are rotatably attached to the other end of the connecting rod 20 using a pin 28.

Therefore, the connecting rod 20, the chain 11, the second chain 12, and one end of the link 20 and the chain 1
a link 15a attached to an attachment 14a fixed to the second chain 12; a link 25a attached to the other end of the link 20 and an attachment 25a fixed to the second chain 12;
A parallelogram link mechanism is constructed by the connecting rod 20, the chain 11, the second chain 12, and the links 15b and 25b.

A driving sprocket 30 is fixed to the shaft 13 on one side of the chain 11 described above, and power is transmitted through the chain 31 by a morph (not shown).
The power transmission may be linked to a second chain depending on the case.

Since the first embodiment of the present invention is constructed as described above, the chains 11 and 12 have attachment members) 14a,
Link 15a via 14b, 24a, 24b.

Since the connecting rods 20 are rotatably attached via the connecting rods 15b, 25a, and 25b, and the storage shelves 10 are suspended from the connecting rods 20, the weight of the items on the shelves 10 on the chain 11 is reduced. , the second chain 12 is also divided into two by the connecting rod 20 and the load is applied to it, and the load is further divided into two by the respective links 15a, 15b and 25a, 25b, and the load is applied to the chain 11 and the second chain 12. ,
The chain pitch in the chain 11 and the second chain 12 is small per storage shelf 10 and spans a plurality of pitches, so the attachments 14a and 14 protruding from the chain 11 and the second chain 12
Link 15 rotatably attached to b, 24a, 24b
a, 15b and 25a, 25b, the storage shelf 10 is moved away from the running path of the chain 11 and the second chain 12. In the moving part, the link 15a,
15b is rotatably attached to the attachments 14a and 14b that protrude from the chain 11 as described above, and the links 25a and 25b are attached to the attachments 24a and 14b that protrude from the second chain 12 as described above. 24
Since the storage shelf 10 is rotatably attached to point P, the storage shelf 10 moves linearly to point P at the same speed as the chain 11 and the second chain. In detail, the storage shelf lO1 separated from the chain rotates faster than the rotational speed of the chain 11 with an angular velocity based on the distance from the center of the shaft 13 to the center of the pin 17 to which the storage shelf 10 is attached, and the chain pitch increases. Even in a small case, as the chain 11 and the second chain 12 rotate, the storage shelf 10 rotates the chain 11 and the second chain 12 starting from the pitch 11 of the attachments 14a and 14b on the chain 11, that is, the 172 point P below the shaft 13. Based on each winding of the second chain 12, the attachment 1
4a, 14b and attachment members) 24a, 24b are forcibly tilted in an outward direction, and the angle α8. α2 is both α1′, α2′, and the angle α1 is α1′, α2〈α
Since the relationship changes to 2', the distance from the center of the rotating shaft 13 to the position of the pin 17 to which the storage shelf 10 is attached is shortened, and centrifugal force is suppressed. Therefore, when the pitch 2 is constant, the pins 16a in the attachments 14a, 14b and the attachments 24a, 24b,
16b, 26a, 26b (length and height), and the respective pins 16a and 17 and pin 26a.

Link 15 determined by the distance from 26b to pin 27
The shorter the length of a, 15b, 25a, 25b, the more the α1
゜α2 is thick (and the angles α, ′, α2 at the rotating part
Since the amount of deviation of ' can be increased, the centrifugal force can be further suppressed.

Then, the deviation is such that the storage shelf 10 starts rotating from the position of the storage shelf 10 at the point P1, that is, from the position 1/2 below the axis 13, and slowly rotates until it reaches the center line XX of the axis 13. However, from the X-X, it further rotates by 180" and shifts from the ascending side to the descending side, and on the descending side, the distance of 272 from the center line X-X of the shaft 13 to the point P2 becomes gradual again. The line will follow a straight line descending, moving from the ascending side to the descending line.
(The sprocket of the chain 11 is hidden and not shown) can be made smaller, so the storage shelf 10 can be rotated more quickly during the aforementioned rotation.

In addition, in the straight parts of the chain 11 and the second chain 12, in order to prevent swinging due to bending of the chain,
Chain 11 and second chain 1 at chain guide 33
In order to prevent the storage shelf 10 from swinging, the roller 21 is supported by a roller guide 34, so that the chain 11 and the second chain 12 can always run stably on the straight section.

In the figure, chain 11, second chain 12
Although only one side has been shown and described, when viewed from the front centering on the storage shelf 10, the chain 11 and the second chain 12 are provided on the left and right, respectively, and each is connected to the storage shelf by links 15 and 25 and a connecting rod 20. Holds 10.

In addition, the chain 11 and the second chain 12 have a sprocket 22 (the sprocket of the chain 11 is hidden) provided on the upper shaft 13. Since it is driven by power transmission and runs the chain, the lower sprocket (not shown) follows as a chain guide, so in this case it can be operated without any problems even if it is disc-shaped without teeth. .

Next, a second embodiment of the present invention will be explained based on FIGS. 4 to 7. In addition to the vertical movement in the first embodiment, the second embodiment also continues in the horizontal direction. In contrast to the first embodiment, which is used to transport relatively heavy items, the second embodiment is used to transport relatively light items.

In FIG. 4, the overall outline is shown by a line diagram, and in the figure, numerals 3, 7, and 8 correspond to one outer panel and a window, respectively, in the first embodiment.

In Figures 4 and 5, sprocket 1 is shown in rotating part A.
9a and 22a are the shafts 13a and 23a, and in the rotating part B, the sprockets 19b and 22b are the shafts 13b and 23a.
3b, and in the rotating part C, the sprocket 9c
and 22c are fixed by shafts 13c and 23c, respectively, and the aforementioned shafts 13a and 23a and shafts 13b and 23b are connected to each other.
The shafts 13c and 23c are arranged at a distance of height H in the height direction, and the chain 11 is endlessly hooked around the sprockets 19a, 19b and 19c, and similarly the second The chain 12 has the sprockets 22a, 2
The hooks are extended endlessly to 2b7i and 22c.

Next, the above-described chain 11 and second chain 12 will be explained based on FIG. 7. The inner link plate 40
．． A bushing 41.41 is fitted to the bushing 40, and a roller 42.42 is rotatably loosely fitted to the bushing 41 to form a roller link.The roller link is connected to an outer link plate 43.43 and a pin 44.40. An endless chain is formed with pin links consisting of 44.

An inner link play 1-40 has links 14 protrudingly formed at regular intervals on the endless chain 11 described above.
．． 40, and also has links 24 protruding from the second chain 12 at equal intervals.
40 will be provided.

The links 14 and 24 described above may be provided on the outer link plate 43 instead of the inner link plate 40, and instead of loosely fitting the roller 42 into the bush 41 described above, the pin 440 may be provided at both ends or one side (in FIG. 7). Rollers 45, 45 may be provided at both ends).

Furthermore, chains 11.11 are arranged in parallel at a predetermined interval, each of which is connected to a sprocket 19.19, and a second chain element 2 is connected to one side of one of the chains 11. The shaft 13a drives a driving sprocket (not shown) to drive the chain 11.11 and the second chain.

Links 14.14.14. formed protruding from the chain 11 at equal intervals. The pin 17, which passes through the chain 11.11 on both sides and is rotatably loosely fitted to one end of the connecting rod 20, is the pivot shaft, and is stored in the holding fitting 35.35 fixed to the shaft. The shelf 10 is fixed.

The other end of the connecting rod 20 has links 24, 24. Pin 27 on...
are rotatably connected. Further, the distance between the respective shafts 13 and 23 described above is maintained at the distance H, and the distance between the link 14 formed protruding from the chain 11 and the link 24 formed protruding from the second chain 12 is Rod 20
The interval is maintained by the length of , and H=L is always maintained.

At the rotating part, the roller holder 37 is used to hold the chain 11, and the roller holder 38 is used to hold the rollers 4 of the second chain 12, respectively.
5 to prevent the respective chains 11 and 12 from floating up, and to prevent the chains 11 and 12 from lifting up, and to prevent the chains 11 and 12 from moving in the vertical direction from the rotating part 7 to the rotating part B via the upper rotating part A, and from the rotating part B in the horizontal direction. When traveling in the lateral direction through the rotating part C to the rotating part, a roller guide is provided on the roller 45 provided on the chain 11 to prevent the chain from bending and to enable accurate parallel movement. This is Nishide (not shown).

The distance H between the axes 13 and 23 described above is shown in FIG.
As shown in FIG. 6, the shaft 23 of the outer sprocket 22 can hold a bearing, and the sprocket 19 fixed to the aforementioned shaft 13 can rotate, and the storage shelf 13 can rotate as described above. Any distance is sufficient as long as it can pass through parts A, B, C, and D, and as in this embodiment, the second chain 12
When sprocket 1 is installed only on one side, sprocket 1
The above-mentioned distance H of 9.22 can be shortened, and therefore the length of the connecting rod 20 can also be shortened.

〔Effect of the invention〕

As explained above, in the present invention, the storage shelf is attached to the chain, and the chain and the second chain are directly connected by the connecting rod, so that the load of the storage shelf on which the articles are placed is transferred to the chain and the second chain. Since the chain can be divided into two parts and a chain with a small pitch can be used, there is almost no pulsation caused by the meshing of the chain and sprocket, and therefore it is possible to drive without noise caused by pulsation. This makes it possible to increase the running speed of the chain, and because the chain pitch is small, it is possible to make minute positional adjustments when stopping, and the links protruding from the chain or second chain allow the chain to move away from the standard running center line. Since the connecting rod and the storage shelf are installed at the same position, the storage shelf is rotated at the rotating part at the same speed, which is faster than the chain speed, following the movement of the small chain pitch.

Furthermore, since the storage shelf is located at a distance from the chain travel line, the storage shelf tries to rotate faster than the chain speed, but the triangular shape formed by the links changes its apex angle and rotates. The deflection of the link in the moving part naturally shortens the distance from the shaft to the pin position on which the storage shelf is attached, thereby suppressing centrifugal force.

In addition, as mentioned above, since the pitch of the chain can be made smaller, the sprocket can also be made smaller in diameter, so it can be made more compact as an article storage shelf, and storage shelves that move in the vertical direction can be lined up vertically without gaps. In addition, even when moving in the horizontal direction, shelves that are twice the width of the links can be lined up in parallel, so it is not only necessary for storage (even when storing, effective floor space can be used, and - storage shelves can be used for storage). On the other hand, the chain pitch carried by the chain and the second chain increases, and the protruding links and connecting rods always form a parallelogram link mechanism, so the load distribution can be kept constant. Therefore, during the rotation described above, the link mechanism described above always rotates while maintaining the quadrilateral shape,
The rotating part allows the storage shelf to be moved in parallel in a stable manner even without a guide, and there is no noise caused by pulsation or vibration, and the shelf storing goods can be quickly moved to the goods entry/exit window part. Therefore, the device can be made suitable for the weight of the article.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, and FIGS. 4 to 7 show a second embodiment of the present invention. The figure is an enlarged view of the broken part in Figure 1, and Figure 3 is a line diagram showing the storage shelf and link mechanism.
Fig. 4 is an overall schematic diagram, Fig. 5 is an explanatory diagram showing the entire device, Fig. 6 is a front view taken from the ■-V arrow in Fig. 5, and Fig. 7 is a partial cross section of the chain and second chain. It is a diagram. 10, 10...: Storage shelf 11: Chain 1
2: Second chain 14, 24: Links 19, 22
: Sprocket 20: Connecting rod Patent applicant Daido Kogyo Co., Ltd. No changes to the 3C contents of the drawings 1. ) Figure 3 Figure 7 Procedural amendment document February 4, 1988 1, Indication of the case 1988 Patent Application No. 306493 2, Name of the invention Transfer device in a circulating storage shelf 3, Person making the amendment Case Relationship with Patent Applicant Address: 197 Kumasaka-cho, Kaga City, Ishikawa Name: Daido Kogyo Co., Ltd. Representative: Akira Shinya City 4, Agent: 105 Telephone: 501-4552 Address: 1-2-14 Toranomon, Minato-ku, Tokyo Shimazaki Building 4th floor 6, number of inventions increased by amendment 7, subject of amendment (1) "Contact with article" in the bottom line of page 4 of the specification is amended to "prevent attempts to come into contact with article" I will. (2) On page 7, line 14 of the specification, "it is designed to be retained." is replaced with "it is designed to be retained."
I will correct it. (3) On page 21 of the specification, lines 16 to 19, “Also, in the case of horizontal movement...
” will be deleted. April 3, 1985 Commissioner of the Patent Office Kuro 1) Akio Yu 1, Indication of the case 1986 Patent Application No. 306493 2, Title of the invention 3, Person making the amendment Relationship with the case % liver Applicant address 197, Kumasaka-cho, Kaga City, Ishikawa Prefecture Name: Daido Kogyo Co., Ltd. Representative: Akira Shinkeichi 4, Agent: 105 Telephone: 501-4552
Address: 4th floor, Shimazaki Building, 1-2-14 Toranomon, Minato-ku, Tokyo March 6, 1986 (Delivery date March 24, 1986)
(No change in content)

Claims (1)

[Claims] In a device that holds a large number of shelves between endless chains, circulates the shelves vertically or horizontally and vertically, and maintains each shelf in parallel during the circulation for transport, the chain is provided with links. One end of the link is rotatably mounted, the other end of the link is pivotally supported together with one end of a connecting rod on a pin holding each of the shelves, and the other end of the connecting rod is parallel to and identical to the chain. The chain is pivotally supported by a link rotatably attached to an endless second chain that is run at a high speed, and the distance between the axes in the height direction between the sprocket axis of the chain and the sprocket axis of the second chain is defined as above. Circulating storage characterized in that the length of the connecting rod is the same as that of the above-mentioned chain and the parallel part of the second chain, the connecting rod, and the link always form a parallelogram link mechanism for each shelf. Transfer device on the shelf.