JP2000229791A - Lifting cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce load due to load of a case provided in a drive device. SOLUTION: This lifting cabinet consists of a main body part 11 with an opened lower part, a case 12 suspended in the main body part 11 through a pair of connection members 13, 13, a guide member 14 provided in an upper part of the case 12 and stretched around the connection members 13, and a drive device 20 lifting and lowering the case. Each of one end sides of the connection members 13, 13 is connected with the drive device 20, and each of the other end sides is set as fixed end which is at a higher position than the guide member 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting cabinet, and more particularly to a lifting cabinet capable of vertically moving a case by winding and unwinding a connecting member for suspending the case.

[0002]

2. Description of the Related Art There has been known an elevating cabinet in which a case can be raised and lowered in a vertical direction as seen in, for example, a dish dryer provided in a system kitchen. As this kind of elevating cabinet, for example, a type shown in FIG. 3 is known. An elevating cabinet 50 of this type includes a main body 51 having an open bottom and a pair of belts 52 and 52 in the main body 51 as a pair of connecting members.
And a case 54 suspended through the
A driving device 60 for vertically moving the main body 5
1 and a pair of pulley members 56, 57 around which the belts 52, 52 are looped.

The driving device 60 comprises a first pulley 61 and a second pulley 62 serving as a pair of take-up and take-out members that can take up and take out one end of each of the belts 52, 52.
And a rotating unit 6 fixed to an output shaft of a motor (not shown) so as to rotate the first and second pulleys 61 and 62.
3 is provided. Also, the belts 52, 52
Is fixed to the upper surface of the case 54, and the case 54 can be raised and lowered by winding and unwinding the belts 52, 52 around the first and second pulleys 61, 62. it can.

[0004]

However, in such an elevating cabinet 50, there is a case where relatively heavy storage items are stored inside the case 54. On this occasion,
Since the load of the case 54 is applied to the drive device 60 as it is, the drive device 60 needs to be designed in consideration of safety to such an extent that a considerable load can be allowed. When the power of the driving device 60 is increased in accordance with the increase in the weight of the case 54,
There is also an inconvenience that costs such as an increase in the size of the motor are inevitably required.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such inconvenience, and an object of the present invention is to provide a lifting cabinet capable of reducing a load on a driving device.

[0006]

In order to achieve the above-mentioned object, the present invention provides a main body having an open bottom, and a main body which is suspended in the main body through a pair of string-shaped or band-shaped connecting members. And a pair of guide members that are provided at an upper position of the case and guide the connecting member so as to be able to be wound around, and a drive that moves the case up and down by winding and unwinding the connecting member. In the lifting cabinet provided with a device, the driving device is configured to wind and unwind one end of one of the connecting members, and to wind and wind one end of the other connecting member. And a second take-up / feed-out member that can be fed out, and the other end of the connecting member is a fixed end. With this configuration, the position for holding the case is held not only at one end of the connecting member but also at the other end of the connecting member as compared with the conventional example. Therefore, the load of the case is
The driving device and the fixed position on the other end side of the connecting member are dispersed, so that the load on the driving device can be reduced. Further, since the lifting force of the case can be increased without changing the power of the driving device, the cost of the driving device can be reduced. Such an effect appears particularly when the fixed end is set at a position higher than the guide member.

[0007]

In the present invention, a connecting member extending between the fixed end and the guide member is preferably maintained in a substantially vertical posture. Thereby, the load of the case is efficiently applied to the fixed end, so that the case can be stably moved up and down. In addition, even when the internal space of the main body is narrow, the connection member can be easily wound around.

A pulley member is disposed between the drive device and the guide member, and the connecting member extending between the pulley member and the guide member is maintained in a substantially vertical posture. Is preferred. According to this configuration, the power for winding and unwinding the connecting member in the driving device can be effectively used as a force for vertically moving the case, and the winding and unwinding operation of the connecting member can be performed smoothly. .

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view showing a lifting cabinet according to the present embodiment, and FIG. 2 is a partial schematic cross-sectional view of the lifting cabinet. In these figures, an elevating cabinet 10 includes a main body 11 fixed to a ceiling or an upper portion of a wall, a case 12 provided to be able to move up and down with respect to the main body 11,
Belts 13, 13 as connecting members for suspending
And rollers 14, 14 as guide members disposed on the upper part of the case 12, and a driving device 20 for applying a winding and unwinding force of the belt 13.

The main body 11 is a top plate 1 having a substantially rectangular shape in plan view.
1A, a pair of side plates 11B, 11B suspended at both left and right ends of the top plate 11A, and the top plate 11A and the side plate 11B.
The rear plate 11C is provided at the rear end and the front plate 11D provided at the front end.
Here, the front plate 11D is cut out in a U-shape whose lower side is an open side, and the door 16 is arranged so as to fill this U-shaped space. Although the door 16 is not particularly limited, in the present embodiment, the door 16 is formed using a heat-resistant resin plate or a glass plate having a light-transmitting property, and the internal state is visible from the outside. This door 16 is a front plate 11D
, And can be rotated in the front-rear direction with the lower end as a free end,
Thereby, access to the case 12 is enabled.

The case 12 is disposed in the space inside the main body 11, and is provided at a lower portion of the main body 11 so as to be able to move up and down in the vertical direction. Case 12
Is provided in a box shape having an open front side, and has an inner top plate 12A and a bottom plate 12B, and inner side plates 12C and 12C arranged at both left and right ends of the inner top plate 12A and the bottom plate 12B.
12C and an inner rear plate 12D arranged at the rear end. Here, a switch 18 is provided on a front end portion of the inner bottom plate 12B on the near side.
As a result, a drive command signal is output to the drive device 20 so that the drive device 20 can be controlled. In addition, between the main body 11 and the case 12,
A guide mechanism 30 that guides the case 12 up and down linearly in a vertical direction is provided.

The guide mechanism 30 includes a guide rail 31 extending vertically in the center of the relative inner surface of the side plate 11B of the main body 11, and inner side plates 12C, 12 of the case 12.
A guide rail 31 is provided at an upper position on the outer side surface of C and includes an outward concave member 32 provided so as to be relatively movable.

Although not particularly limited, the belts 13 are made of a material which does not elongate due to a tensile load and does not change over time. Each of the belts 13, 13 is wound around the rollers 14, and one end of the belt 13 is driven by the driving device 20.
The other end of the belt 13 is fixed to the top plate 11A of the main body 11 via a bracket 19 as a fixed end 13A. The belt 13 extending between the roller 14 and the fixed end 13A of the belt 13 is maintained in a substantially vertical posture. Thereby, the belt 13 can be wound around within a narrow range, and thus the entire lifting cabinet 10 can be reduced in size.

The rollers 14, 14 are provided on the case 12
Is provided at a position forming a pair of left and right sides in the front-rear center region of the inner top plate 12A. This roller 14
Is rotatably supported via a U-shaped support member 15 fixed to the inner top plate 12A.

The driving device 20 is disposed via a motor storage box 21 provided on the back side of the top plate 11A. The driving device 20 includes a DC motor 22 and
A main driving gear 24 fixed to an output shaft 23 of the DC motor 22; driven gears 25 and 26 engaged with the main driving gear 24 and rotatable in mutually reverse directions;
A first pulley 27 and a second pulley 28 as take-up and feeding members fixed to the rotation shafts 5 and 26 are provided. Here, one end of the belt 13 traveling leftward in FIG. 2 is fixed to the first pulley 27, and one end of the belt 13 traveling rightward in FIG. The belt 13 is fixed, and by rotating the driving gear 24, the belts 13, 13 of the same length can be simultaneously wound and unwound. In addition, pulley members 41, 41 are provided on the front end side of the storage box 21.
Is arranged.

The pulley members 41 are connected to the roller 1
4, 14 are arranged above. The belts 13 between the drive device 20 and the rollers 14 are wound around the pulley members 41, and the belt 13 extending between the pulley members 41 and the rollers 14 is maintained in a substantially vertical posture. It is provided as follows. Accordingly, even if the position of the driving device 20 and the position of the roller 14 are not on the same vertical line, the case 12 can be moved up and down while allowing the belt 13 to smoothly move.

The lifting cabinet 10 according to the present embodiment.
The position where the case 12 is held is held not only at one end of the belt 13 but also at the other end as compared with the conventional example. That is, in the conventional example, as shown in FIG. 3, assuming that the force for winding the belt 52 of the first pulley 61 is F, the force for raising one side of the case 54 is also F, and the same applies to the second pulley 62. Therefore, the force for raising the case 54 is 2F as a whole. In this embodiment, assuming that the winding force of the first pulley 27 is F in the same manner as described above, the force for raising one side of the case 12 is 2F as shown in FIG.
The force for raising the case 12 is 4F in total. This allows the case 1 to be operated without changing the power of the driving device 20.
2 can increase the lifting force, so that the effect of reducing the load applied to the driving device 20 can be obtained.

The belt 13 is not limited to a configuration in which the belt 13 is hung alone in the central area of the upper surface of the case 12 as shown in this embodiment, but the belt 13 is arranged in the depth direction. May be used as long as at least one belt 13 is used. Further, the case where a belt-shaped belt is used as the connecting member has been described. However, the present invention is not limited to this. For example, a string-shaped wire or the like may be used.

[0020]

As described above, according to the present invention,
The case is suspended via a guide member hung around a pair of connecting members, and one end of each of the connecting members is connected to the driving device, and the other end is fixed to a position above the guide member. With such a configuration, the load on the case applied to the drive device can be extremely reduced. Further, the force for raising and lowering the case can be increased without changing the power of the driving device, and an excellent effect can be obtained from this point as well.

Further, since the connecting member extending between the fixed end of the connecting member and the guide member has a substantially vertical posture, the space for hanging the connecting member can be reduced. Also, the load applied to the fixed end can be reduced, and the case can be raised and lowered efficiently.

Further, between the driving device and the guide member,
Since the pulley member is arranged and the connecting member extending between the pulley member and the guide member has a substantially vertical posture,
The power of the driving device can be effectively changed to a force for raising and lowering the case.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an embodiment in which a lifting cabinet according to the present embodiment is applied to a tableware dryer.

FIG. 2 is a partial schematic cross-sectional view of the lifting cabinet.

FIG. 3 is a partial schematic sectional view showing an example of a conventional elevating cabinet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Elevating cabinet 11 Main body part 12 Case 13 Belt (connection member) 14 Roller (guide member) 20 Drive device 27 1st pulley (winding and feeding member) 28 2nd pulley (winding and feeding member) 41 Pulley member

Claims (3)

[Claims] 1. A lower-opening main body, a case arranged in the main body and suspended via a pair of string-shaped or band-shaped connecting members, and a case provided at an upper position of the case. In a lifting cabinet provided with a pair of guide members for guiding the connecting member so as to be able to be wound around and a driving device for vertically moving the case by winding and unwinding the connecting member, A first take-up and feeding member capable of winding and unwinding one end of the connecting member, and a second winding and unwinding one end of the other connecting member.
A lifting and lowering cabinet, wherein the other end of the connecting member is a fixed end. 2. The lifting cabinet according to claim 1, wherein a connecting member extending between the fixed end and the guide member is maintained in a substantially vertical posture. 3. A pulley member is disposed between the driving device and the guide member, and the connecting member extending between the pulley member and the guide member is maintained in a substantially vertical posture. Item 3. The lifting cabinet according to Item 1 or 2.