JPH0784242B2 - Multi-tiered shelf that can work in fixed position - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-tiered shelf for use in a tableware disinfecting storage cabinet or the like.

2. Description of the Related Art A tableware disinfection storage cabinet is used for storing washed dishes, raising the temperature in the cabinet by hot air, etc. and performing sufficient disinfection for a certain period of time, and then opening a large exhaust damper to perform disinfection and drying at once. is there. Dish washed, water drips, and food baskets containing these carry considerable weight. Most of the shelves in conventional dish disinfection storage cabinets are fixed shelves, and the dishes that have been washed are stored on the top shelf of the storage cabinet located higher than a person's height, and the dishes are taken out from there. Was very hard labor. Further, the work of storing the tableware in the lowest shelf at a very low position and taking out the tableware from the shelf is also a work in which the waist is bent and it is very tired.

In order to reduce such work, a shelf raising / lowering system for automatically raising and lowering a shelf has been proposed so far. An example of the conventional rack raising / lowering system is schematically shown in FIG. 7 of the accompanying drawings. The conventional shelf lifting system shown in FIG. 7 has five grid-like shelf boards 21, 22, 23, which are connected to each other at four corners by a shelf wire rope 34 having a very flexible predetermined length. twenty four
And a multi-level shelf 20 consisting of 25 and each shelf 2 of this multi-level shelf 20
A rack movement control device 30 for controlling the movement of 1, 22, 23, 24 and 25. The multi-tiered shelves 20, for example, are arranged in the housing of a tableware disinfection storage, and the shelving movement control device 30
It is placed on the ceiling 11 of the tableware disinfecting storage. The shelf movement control device 30 includes a drive motor 31, a pair of hoisting wheels 32 rotated by the drive motor 31, and a pair of shelf hoisting wires 33 hoisted by the hoisting wheel 32 and hoisting the multistage shelf 20. ing. As shown in FIG. 7, the shelf hoisting wire 33 is used for the uppermost shelf plate 21 of the multi-level shelf 20.
One end is connected to the four corners of the and the other end is connected to each hoisting wheel 32. When carrying out the work of storing dishes or the like in each of the shelves of the multi-tiered shelves 20, first, the drive motor 31 is actuated by depressing the raising switch (not shown) of the control panel to wind the hoisting vehicle. By rotating 32 in the winding direction and winding the shelf lifting wire 33 by a predetermined amount, from the state where the multi-level shelf 20 is folded on the bottom surface in the refrigerator, as shown in FIG. Make sure that 21 is at the optimum height position for workers to easily store tableware. Then, in that state, the drive motor 31 is stopped and the tableware is stored on the shelf board 21. After the storage of the tableware on the shelf board 21 is completed, the raising switch is pressed again, the drive motor 31 is operated, and the shelf lifting wire 33 is further wound up by a predetermined amount, so that the shelf board 22 of the next stage is Make sure that the worker comes to the optimum height position where it is easy to store the tableware. Then, the tableware is stored on the shelf board 22. When the storage of the tableware on the shelf board 22 is completed, the rise switch is pressed again, the drive motor 31 is operated, and the shelf lifting wire 33 is further wound by a predetermined amount, so that the shelf board 23 of the next stage is Make sure that the worker is at the optimum height for easy storage of dishes. Then, the tableware is stored on the shelf board 23. In this example of the five-tiered multi-tiered shelves, in this state, the lowermost shelf plate 25 is on the bottom of the cabinet, and the shelf wire rope 34 between the shelf plates 24 and 25 is used.
And the shelf wire rope 34 between the shelf board 23 and the shelf board 24 is fully extended, and the shelf board 24 and the shelf board 25 are below the shelf board 23 and have a length equal to the length of the shelf wire rope 34. It is in the form of being suspended with the space between. Therefore, the tableware is stored in the shelf plate 24 and the shelf plate 25 in this state.

In order to take out the tableware stored in the multi-tiered shelves 20 as described above, an operation opposite to the above-mentioned shelf board moving means is performed.
That is, first, the lowest shelf 25 and the shelf 24 immediately above it.
Then, the tableware on the upper shelf board 23 is taken out, and thereafter, the lowering switch (not shown) of the control panel is pressed to operate the drive motor 31 to drive the hoisting vehicle 32.
Is rotated in the rewinding direction and the shelf lifting wire 33 is rewound by a predetermined amount, so that the shelf plate 22 comes to an optimum height position where the operator can easily take out the dishes. Then, in that state, the drive motor 31 is stopped,
The tableware is taken out from the shelf 22. Its shelf 22
After the removal of the tableware from the top is completed, the lowering switch is pressed again, the drive motor 31 is operated, and the shelf hoisting wire 33 is rewound by a predetermined amount, so that the uppermost shelf board 21 is operated by the operator. Make sure that the table is at the optimum height for easy storage of tableware. Then, the tableware is taken out from the shelf 21.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention According to the above-described shelf lifting system, the shelf plates from the uppermost stage to the middle stage, that is, the storage of the tableware on the shelf plates 21, 22 and 23 and the tableware from the tableware are stored. Regarding the take-out work, the height position of the shelf board can be moved to an optimum position where the worker can easily work, so that the work can be made very simple and easy. However, the storage of the dishes on the shelves lower than the middle tier, that is, the shelves 24 and 25 and the removal of the dishes from the shelves 24 and 25 are performed at the optimum position where the workers can easily work. And it couldn't be moved, so it was still a problem. That is, the work of storing the tableware on the shelves 24 and 25 and the work of taking out the tableware there are performed while the shelves are located at a position lower than the height position at which the worker can easily work. It is necessary for the worker to perform the work in a bad work posture with the waist bent, which results in great fatigue and a long working time. The problem is that, especially in recent school meals, tableware has been switched from melamine resin to pottery, and the weight of tableware to be handled is increasing significantly. Is important when thinking about.

In addition, although it has been proposed that the upper and lower shelves can be moved up and down, in this case, two or more motors are used as driving motors, which results in extremely high cost. It wasn't what I expected.

An object of the present invention is to provide a multi-tier shelf capable of fixed-position work which can solve the problems of the conventional techniques as described above.

Means for Solving the Problems According to the present invention, in a multi-tiered shelf including a plurality of shelves that can be arranged at a predetermined interval in the vertical direction, the plurality of shelves is at least an upper shelf group and a lower shelf group. The two shelving groups are divided into two shelving groups, and each shelving of the upper shelving group is moved between a predetermined height position suitable for shelving shelving operation and an upper position, and the predetermined height position and lower position. And a rack movement control means for moving each rack of the lower rack group, the upper rack group is hung by an upper rack wire, the lower rack group is hung by a lower rack wire, and The shelf movement control means includes a drive means and a wire control means driven by the drive means, and the wire control means is driven by the drive means and pulls the lower shelf wire to lower the lower shelf. Down each shelf in the shelf group When moving from the position to the predetermined height position, the upper shelf wire is prevented from receiving a suspending load from each shelf of the upper shelf group, while the upper shelf wire is pulled. This prevents the lower shelf wire from acting so as to pull up each shelf of the lower shelf group while moving each shelf of the upper shelf group from the predetermined height position to the upper position. It is characterized by

Embodiment Next, the present invention will be described in more detail with reference to FIGS. 1 to 6 of the accompanying drawings, regarding an embodiment of the present invention.

FIG. 1 is a schematic view showing the structure of a tableware disinfecting storage using a multi-tiered shelf as an embodiment of the present invention. The dishwasher cabinet 100 includes side panels 111 and 112 and a bottom plate 113.
And a ceiling portion 114, a back panel 115, and a front opening / closing door (not shown). The housing 110 includes a housing 110 in which a multi-tier shelf according to an embodiment of the present invention is provided. It is provided.

The multi-tiered shelf of this embodiment includes five lattice-shaped shelf boards 121, 122,
A shelf member 120 composed of 123, 124, and 125, a shelf movement control device 140 arranged on the ceiling 114, and a control panel 150 arranged on the front surface of the housing for controlling the operation of the shelf movement control device 140. I have it.

The shelf plates 121, 122 of the shelf member 120 are very flexible and have a predetermined length of shelf wire rope (not shown), like the shelf plates 21, 22, 23 of the conventional example shown in FIG. ) Are connected to each other at four corners. Further, the shelf plate 123 and the shelf plate 124 are, as shown in FIG. 1 well, a shelf post 124A having a predetermined length.
Are connected to each other at the four corners, and shelf plate 124 and shelf plate 125
Similarly, are connected to each other at four corners by a shelf 125B having a predetermined length. One end of a lower shelf wire 131 extending through through holes 131A provided at the four corners of the shelf plates 121 and 122 is connected to the four corners of the shelf plate 123, which is the middle shelf plate, and as described later, The shelves 123, 124, and 125 are adapted to be lifted by the four lower shelf wires 131. On the other hand, 4 of shelf board 121 which is the top shelf board
One end of the upper shelf wire 132 is connected to the corner,
As will be described later, the shelf plates 121 and 122 are hung up by the four upper shelf wires 132.

Shelf movement control device arranged on the ceiling 114 of the housing 110
140, as best shown in the partial detail view of FIG.
A drive motor 141 is provided. This drive motor 141
Is driven to rotate in one direction by continuing to press the raising switch (not shown) provided on the control panel 150, and the lowering switch (not shown) provided on the control panel 150 is driven. By continuing to press, it can be driven to rotate in the opposite direction. The shelf movement control device 140 includes a drive shaft 142A supported by a pair of front and rear sprocket bearings 144 and a driven side shaft 142 similarly supported by a pair of front and rear sprocket bearings 144.
Drive shaft 142A and driven shaft 1
Sprocket 143 is attached to both ends of 42B, and wire control tune 145 is hung between each pair of left and right sprockets 143. Drive shaft 142A
Is driven to rotate by the drive motor 141 via the drive chain 141A, and the wire control tune 145 can be rotationally moved in the left-right direction.

The other ends of the upper shelf wires 132 are connected to the lower paths on the left side and the right side in FIG. 2 of each wire control chain 145, respectively. The connecting mechanism is shown in a partial detailed view of FIG. As is often shown in FIG.
The other end of the upper shelf wire 132 is wrapped around a wire ring 132A attached to a wire ring shaft 145A provided on a wire control chain 145 and fastened thereto using a sleeve 132B. And these upper shelf wires
132 extends downward through the corresponding sheaves 149 arranged in the front, rear, left and right, and as described above, the uppermost shelf 12
Connect one end to each corresponding corner of 1.

Further, as shown in the partial detailed view of FIG. 4, a hook 145B is attached to the upper path on the left side in FIG. 2 of each wire control chain 145.
145B moves with the movement of the wire control chain 145. The lower pulse on the right side in FIG. 2 of each wire control chain 145 also has hooks 145C attached thereto, as well shown in the partial detailed view of FIG. 5, and these hooks 145C also move the wire control chain 145. It moves with.

The rack movement control device 140 is further provided with lower rack wire stoppers 147 and 148, as shown in FIG. The lower shelf wire stop 147 is, as shown in the partial detailed view of FIG. 4, well, a wiring shaft attached with a wiring 131C for connecting the other ends of the lower shelf wires 131 on the left and right in FIG. It has a hook portion 147A for hooking both ends of 131B. Wiring
The other end of the lower shelf wire 131 is wound around 131C and fastened thereto by using a sleeve 131D. The lower shelf wire stopper 148 is, as shown in the partial detailed view of FIG. 5, well, the lower shelf wire for the lower shelf on the right side in FIG.
It has a hooking portion 148A for hooking both ends of a wiring shaft 131E to which a wiring 13F for connecting the other end of 131 is attached. The other end of the lower shelf wire 131 is wound around the wiring 131F and is fastened thereto by using a sleeve 131G. And these lower shelf wires
The 131 extends downward through the corresponding sheaves 149 arranged in the front, rear, left and right, and as described above, the middle shelf plate 123.
It has one end connected to each corresponding corner.

Next, an operation sequence for accommodating tableware in each shelf of such a multi-tiered shelf and taking out tableware from each shelf will be described with reference to FIG.

FIG. 6 is a schematic view of a side view of the dish disinfection storage cabinet 100 and an operation state for moving the upper shelves and an operation state for lower shelves of the shelving movement control device 140.
And a drawing as seen from the side of the tableware disinfecting storage 100) are also shown together, and the procedure for taking out the tableware 10 from the tableware disinfecting storage 100 is shown in FIGS. 6 (A) and 6 (B). ,
(C), (D) and (E) are shown in this order. The procedure for storing the tableware 10 in the tableware disinfecting storage 100 is shown in FIGS. 6 (E), (D), (C) and (B). ) And (A) in this order. In FIG. 6, solid line arrows indicate the operating directions of the respective parts when the tableware is taken out, that is, when leaving, and dotted line arrows indicate the operating directions of the respective parts when storing the tableware, that is, when entering. Is shown.

First, the operation for taking out the tableware will be described in the order of FIGS. 6 (A), (B), (C), (D) and (E). As schematically shown in FIG. 6 (A), the shelf boards 121, 122, 123, 124, 1 of the multi-tiered shelves in the tableware disinfecting storage 100.
25 is a shelf movement control device 140 with a predetermined interval opened.
Is suspended by a lower shelf wire 131 and an upper shelf wire 132. At this time, the lower shelf wire 13
1 is in a state where both ends of the wiring shaft 131B are hooked on the hook portions 147A of the lower shelf wire stopper 147. The worker takes out all the tableware 10 stored on the middle shelf plate 123 which is at the optimum height position for the tableware taking out work. After that, push the lowering switch (delivery switch) on the control panel 150 to move the shelf movement control device 140.
Operate. Then, as shown in the two figures above FIG. 6 (A), the sprockets are rotated in the direction of the solid arrows, and therefore the wire control chain 145 hung between the sprockets is indicated by the solid arrows. It can be rotated in the direction shown. Wire 132 for upper shelf with end attached to wiring axis 145A of wire control chain 145
Is moved in the direction in which the shelves 121 and 122 are lowered as the wire control chain 145 moves, as shown in the uppermost part of FIG. 6 (A). The lower shelf wire 131 is
As shown in the second diagram from the top of FIG. 6A, since it is not associated with the wire control chain 145, it is maintained as it is regardless of the movement of the wire control chain 145. Therefore, the positions of the shelves 123, 124, 125 do not change. The operator turns off the lower layer switch when the shelf board 122 is lowered to a position where it overlaps the shelf board 123 as shown in FIG. 6 (B).

In the state of the shelves shown in FIG. 6 (B), the worker can set the tableware 1 stored on the shelves 122 at the optimum work position.
Take out all 0s. After that, the lid, operator, control panel 1
Depress 50 down switch to activate shelf movement control 140. Then, as shown in the two figures above FIG. 6 (B), the sprockets are further rotated in the direction of the solid arrows, and thus the wire control chain 145 hung between them is shown by the solid arrows. It can be rotated further in the direction indicated by. The upper shelf wire 132 whose end is attached to the wiring shaft 145A of the wire control chain 145 further moves the shelves 121 as the wire control chain 145 moves, as shown in the uppermost part of FIG. 6 (B). It is moved in the lowering direction. Wire 131 for lower shelf
Is not associated with the wire control chain 145 yet, as shown in the second figure from the top of FIG. 6 (B), and is maintained as it is regardless of the movement of the wire control chain 145. Therefore, shelves 123, 12
The positions of 4 and 125 do not change. The operator turns off the lowering switch when the shelf board 121 is lowered to a position where it overlaps the shelf board 122 as shown in FIG. 6 (C).

In the state of the shelves shown in FIG. 6 (C), the worker can set the tableware 1 stored on the shelves 121 at the optimum work position.
Take out all 0s. Then again, the operator controls the control panel 1
Depress 50 down switch to activate shelf movement control 140. Then, as shown in the two figures above FIG. 6 (C), the sprockets are further rotated in the direction of the solid arrows, and thus the wire control chain 145 hung between them is shown by the solid arrows. It can be rotated further in the direction indicated by. The upper shelf wire 132 whose end is attached to the wiring shaft 145A of the wire control chain 145 has the shelves 121, 122 as the wire control chain 145 moves, as shown in the uppermost part of FIG. 6 (D). Start moving from the descending direction to the ascending direction. On the other hand, lower shelf wire
131, the hooks 145B and 145C moving as the wire control chain 145 moves, as shown in the second view from the top in FIG.
The wire shafts 131B and 131E hooked on the hooking portions 147A and 148A of the wire rods 147 and 148 are hooked on both ends, respectively, and the wire control chain 145 is further moved in the direction of the solid line arrow, whereby the lower shelf wire 131 Will be pulled up in the direction of the solid arrow, and thus the shelves 123, 124 and 125 will be raised together. As shown in FIG. 6 (D), the worker lowers the shelf board 124 to the optimum work position where the shelf board 123 was located in FIG. To turn off.

In the state of the shelves shown in FIG. 6 (D), the operator can set the tableware 1 stored on the shelves 124 at the optimum work positions.
Take out all 0s. Then again, the operator controls the control panel 1
The lowering switch (switch for exit) of 50 is pressed to operate the rack movement control device 140. Then, as shown in the two figures above FIG. 6 (D), the sprockets are further rotated in the direction of the solid arrows, and therefore the wire control tune 145 hung between the sprockets is changed. It can be rotated further in the direction indicated by. The upper shelf wire 132 having the ends attached to the wiring shaft 145A of the wire control chain 145 has the shelves 121, 122 as the wire control chain 145 moves as shown in the uppermost part of FIG. 6 (E). To move further up. On the other hand, in the lower shelf wire 131, the hooks 145B and 145C moving along with the movement of the wire control chain 145 have the wiring shafts 131B and 131E as shown in the second diagram from the top of FIG. 6 (E). Since it can be further moved in the direction of the solid arrow while being hooked at both ends of,
The lower shelf wire 131 can be further pulled up in the direction of the solid arrow, so that the shelf plates 123, 124, and 125 can be integrally raised further upward. As shown in FIG. 6 (E), the operator installs the shelf plate 125 in FIG. 6 (A).
At the time when the shelf plate 123 is raised to the optimum work position where it was located, the lowering switch (delivery switch) is turned off. In the state of the shelf shown in FIG. 6 (E),
The worker takes out all the dishes 10 stored on the shelf plate 125 at the optimum work position. This completes the work of taking out all the tableware 10 stored on all the shelf boards of the tableware disinfecting storage 100.

Next, a procedure for storing the tableware 10 in the tableware disinfecting storage 100 will be described. First, the worker stores the tableware 10 on the shelf plate 125 of the multistage shelf in the tableware disinfecting storage 100 in the state shown in FIG. 6 (E). This shelf board 1
After finishing the storage work in 25, the worker pushes the raising switch (storage switch) of the control panel 150. Then, the sixth
As shown in the two top schematics in Figure (E), the sprocket is in the opposite direction from when it pressed the exit switch,
In other words, the lower shelf wire 131 and the upper shelf wire 132 are moved in the direction indicated by the dotted arrow so that the lower shelf wire 131 and the upper shelf wire 132 are moved in the direction of the dotted arrow, and thus the shelves 121, 122 and 123, 1
24 and 125 are lowered. When the operator lowers the shelf board 124 to the optimum work position where the shelf board 123 was located in FIG. 6 (A) as shown in FIG. ) Off. In the state of the shelves shown in FIG. 6 (D), the worker stores the tableware 10 on the shelves 124 at the optimum work position.

After that, by pressing the lift switch (storage switch), the tableware storage work is performed while the tableware is always stored on the shelf board in the optimal work position in the reverse order of the above-mentioned operation procedure at the time of leaving. Can be completed.

In addition, although the above-mentioned embodiment is an example in which the multi-tiered shelf of the present invention is applied to a tableware disinfection storage, the present invention is not limited to this.
It can be applied to various storages, lifters, etc. in the same manner and exhibits the same effect.

EFFECTS OF THE INVENTION According to the configuration of the multi-tiered shelf of the present invention as described above, all the shelf boards can be moved to the optimum work position in a very minimum space, so that the size is small, the cost is low, and the work is efficient. It is possible to provide a multi-tiered shelf with good performance. In addition, according to the configuration of the present invention, a multi-stage shelf that enables fixed-position work of all shelves with a pair of wire control chain mechanisms for lifting four corners of the shelf with one drive motor is provided. Is also easy.

[Brief description of drawings]

FIG. 1 is a schematic view showing the structure of a tableware disinfecting storage using a multistage shelf as one embodiment of the present invention, and FIG. 2 is a shelf movement control device for the multistage shelf of the tableware disinfecting storage shown in FIG. 3 is a partial detailed view showing the connection relationship between the wire control chain of the shelf movement control device of FIG. 2 and the upper shelf wire, and FIG. 4 is a shelf movement control device of FIG. FIG. 5 is a partial detailed view showing the relationship between the lower shelf wire on the left side and the wire control chain, and FIG. 5 is a part showing the relationship between the lower shelf wire on the right side and the wire control chain of the shelf movement control device of FIG. FIG. 6 is a detailed view showing a side view of the tableware disinfecting storage of FIG. 1 and a schematic view showing an operation state for moving the upper shelf and an operation state for moving the lower shelf of the shelf movement controller. FIG. 7 is a schematic diagram showing an example of a conventional shelf lifting system. 10 …… Tableware, 100 …… Tableware disinfection storage, 110 …… Housing, 120 …… Shelves, 121,122,123,124,125 …… Shelf, 131 …… Lower shelf wire, 132 …… Wire for upper shelf, 140 …… Shelf movement control device, 141 …… Drive motor, 142A …… Drive shaft, 142B …… Driven shaft, 143 …… Sprocket, 144 …… Sprocket bearing, 145 …… Wire control chain, 145A …… Wiring shaft, 145B …… Hook, 145C …… Hook, 147 …… Lower shelf wire stopper, 147A …… Hooking part, 148 …… Lower shelf wire stopper, 148A …… Hooking part, 149… … Sheave, 150… Control panel.

Claims (1)

[Claims] 1. A multi-tiered shelf including a plurality of shelves that can be arranged at a predetermined interval in the vertical direction, wherein the plurality of shelves are divided into at least two shelf groups, an upper shelf group and a lower shelf group. Moving each of the shelves of the upper shelf group between a predetermined height position and an upper and lower position suitable for shelving and shelving work, and the lower shelf between the predetermined height position and the lower position Equipped with a shelf movement control means for moving each shelf of the group, the upper shelf group is hung by the upper shelf wire, the lower shelf group is hung by the lower shelf wire, The shelf movement control means includes a drive means and a wire control means driven by the drive means, and the wire control means is driven by the drive means to pull the lower shelf wire. Each shelf of the lower shelf group by When moving from one position to the predetermined height position, the upper shelf wire does not receive a suspending load from each shelf of the upper shelf group, while the upper shelf wire is When moving each shelf of the upper shelf group from the predetermined height position to an upper position by pulling, the lower shelf wire does not act so as to pull up each shelf of the lower shelf group. A multi-tiered shelf characterized by doing.