JPH0975150A - Suspended cabinet equipped with lifting mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspended cabinet equipped with a lifting mechanism of which a installation place can be selected freely, and which is smooth in lifting motion, and is free of vibration and noise, and can be installed easily. SOLUTION: This suspended cabinet has direct-acting guide rails 18 and 19, which guide lifting parts in the vertical direction, each between the right and left side faces of lifting parts and the light and left side faces of fixing parts, and lifting drivers which drive the lifting parts vertically by the driving force of a motor, being coupled by flexible rotation transmitting cables 3, at the right and left drive shafts of the double-shaft motor arranged above the lifting parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging cabinet having an elevating mechanism for vertically moving an elevating part including a shelf board.

[0002]

2. Description of the Related Art As a lifting mechanism for vertically moving a hanging cabinet, various methods such as a suspension cord mechanism and a feed screw mechanism have been proposed.

A conventional lifting mechanism using a suspension cord mechanism is disclosed in, for example, JP-A-60-7809 and JP-A-61-457.
No. 05 publication. However, it has a complicated structure in which a large number of pulleys are arranged and a suspension line is stretched around, and there is a problem that a failure such as the suspension line coming off the pulley is likely to occur and the size cannot be reduced. In addition, since the elevating part is suspended by the hanging rope, if there is an obstacle on one side of the elevating part and the descent is obstructed, there is a problem that the elevating part will tilt. There is a problem that the part shakes left and right or front and back.

A conventional lifting mechanism using a feed screw mechanism is disclosed in, for example, Japanese Utility Model Laid-Open No. 62-116935. However, since the back panel of the hanging cabinet is fixed to the wall surface of a house etc., there is a problem that the installation place is limited, and there is a need for installation work and adjustment work of the lifting mechanism at the installation site. There is a problem that work time and work cost are required.

[0005]

The above-mentioned problems are solved by the present invention as set forth in claim 1, that is, an elevating mechanism including an elevating part including a shelf is movable up and down with respect to a fixed part by a motor drive. A hanging cabinet, a direct-acting guide rail for vertically guiding the elevating section between the left and right side surfaces of the elevating section and the left and right side surfaces of the fixed section, and a dual-axis motor arranged above the elevating section. This is solved by a hanging cabinet including an elevating mechanism having an elevating and lowering drive unit that is connected to left and right drive shafts by flexible rotation transmission cables and vertically drives the elevating and lowering unit by a driving force of a motor.

Further, in a preferred aspect of the present invention, as described in claim 2, the lower end of the lifting drive unit is rotatably supported by the fixed unit, and the worm wheel is fixed to the upper end thereof. And a feed screw shaft that extends in the vertical direction, and a worm gear that meshes with the worm wheel,
A feed screw nut fixed to the elevating part and screwed onto the feed screw shaft.

[0007]

According to the first aspect of the present invention, the linear guide rails and the elevating drive section are provided between the left and right side surfaces of the elevating section and the left and right side surfaces of the fixing section. The left and right lifting drive units are connected to the left and right drive shafts of the two-axis motor by flexible rotation transmission cables, and the driving force of the two-axis motor drives the lifting drive unit to drive the lifting unit up and down. To do. At the same time, the lifting unit is vertically guided by the left and right linear guide rails.

In a preferred embodiment of the present invention, the worm gear meshing with the worm wheel and the drive shaft of the double shaft motor are connected by a flexible rotation transmission cable, and the double shaft motor drives the worm gear. It is driven to rotate. Then, the worm wheel that meshes with this worm gear is driven to rotate, the feed screw shaft fixed to this worm wheel is rotated, and the feed screw nut that meshes with this feed screw shaft moves up and down and is attached to the feed screw nut. The lifting unit moves up and down.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 2 is an external view of the hanging cabinet according to the embodiment of the present invention. The hanging cabinet 50 includes a fixed part and an elevating part. The fixed part is a rectangular parallelepiped with an open bottom surface, and the fixed part top plate is fixedly attached to the ceiling plate of the house or the like, and by the hanging cabinet 50 and the wash basin 60 installed therebelow,
It can form the boundary between the kitchen and dining. Although the fixed part left side plate 104 and the fixed part front plate 105 are illustrated, the fixed part front plate 105 can be an openable / closable door for repairing the hanging cabinet and from the viewpoint of design.
The elevating unit is a rectangular parallelepiped having an open front surface, which has a shelf plate 115 for storing dishes and the like. The elevating part is fitted and inserted from the open part of the bottom surface of the fixed part. When raised to the upper limit position, the bottom plate of the elevating part stands still at a position coinciding with the lower ends of the front plate, side plate and back plate of the fixing part, and the elevating part is completely hidden and stored inside the fixing part. On the other hand, when descending, the elevating part projects below the fixed part, and the dishes or the like placed on the elevating part shelf 115 can be taken out from the kitchen side or the dining side. As shown in FIG.
It is shown. Note that the elevating part can be changed to a pipe frame structure unlike the illustrated embodiment.
Further, the pipe frame structure does not have the side plate, the back plate, and the bottom plate, and the side surface, the back surface, and the bottom surface may be formed by a pipe, punch metal, a wire mesh, or the like.

Next, the lifting mechanism of this embodiment will be described with reference to FIGS. FIG. 1 is a schematic view of the lifting mechanism of this embodiment. Fixed part top plate 101 of hanging shelf 50
A biaxial motor 1 is attached to the center of the lower surface of the biaxial motor 1 by a motor bracket 4, and the drive shaft of the biaxial motor 1 projects to the left and right. Then, one ends of rotation transmission cables 2 and 3 are attached to the left and right drive shafts of the biaxial motor 1. The other ends of the rotation transmission cables 2 and 3 are attached to a worm gear 30 that is rotatably supported by the gear boxes 8 and 10. Therefore, the rotation torque of the two-axis motor 1 is generated by the rotation transmission cables 2 and 3.
The worm gear 30 is rotated by being transmitted to the worm gear 30. Gearboxes 8 and 10 are gear brackets 9 and 1
It is attached inside the fixed part by 1.

FIG. 3 is a schematic view of the worm gear and the worm wheel of this embodiment. The rotation transmission cable 2 is flexible and extends horizontally in the horizontal direction. The inner cable 20 is rotatably installed inside the rotation transmission cable 2.
1 is arranged and is surrounded by an outer tube 202 having strength, water resistance, oil resistance, and chemical resistance. One end (the left end in FIG. 3) of the rotation transmission cable 2 is attached to the drive shaft of the biaxial motor 1 by the motor attachment portion 203. A worm gear 30 is attached to the other end of the rotation transmission cable 2. The worm wheel 31 meshes with the worm gear 30 and the worm wheel 31
It is rotatably supported by. Rotational torque is transmitted in the orthogonal direction by the worm gear 30 and the worm wheel 31. One end of the feed screw shaft 12 is fixed to the rotating shaft of the worm wheel 31. A feed screw nut 14 is screwed onto the feed screw shaft 12.

As shown in FIG. 1, gearboxes 8 and 10 are shown.
A worm gear 30 and a worm wheel 31 are housed inside, and feed screw shafts 12 and 13 project vertically downward from the gear boxes 8 and 10. Feed screw shaft 12, 1
3, feed screw nuts 14 and 15 are screwed together, and these feed screw nuts 14 and 15 are fixed so that they cannot rotate.
It is attached to the side brackets 16 and 17. The other ends of the feed screw shafts 12 and 13 are rotatably supported by an end bearing 22 attached to an end bracket. The end bracket is fixed to the inner surface lower ends of the fixed portion right side plate 103 and the fixed portion left side plate 104. Therefore, when the feed screw shafts 12 and 13 are rotated, the feed screw nuts 14 and 15 move up and down smoothly without causing vibration or noise. Side bracket 1
6, 17 are also provided on the left and right ends of the upper surface of the lifting / lowering section top plate 111,
Each is installed.

Further, the linear guide rails 18 and 19 are
The right side plate 103 of the fixed portion and the left side plate 104 of the fixed portion are attached so as to extend in the vertical direction. Linear guide rail 1
Slide blocks (not shown) that engage with 8, 19 and slide smoothly are attached to the side brackets 16, 17. Therefore, the side brackets 16 and 17 and the elevating part suspended therefrom are guided by the linear guide rails 18 and 19 and move up and down extremely smoothly without causing vibration or noise. It should be noted that in the embodiment of the present invention, the elevation drive unit is configured by the feed screw shaft and the feed screw nut installed on the left and right side surfaces.
However, the lifting drive unit is not limited to the configuration of the above-described embodiment, and for example, a rack having tooth portions arranged vertically on the left and right side surfaces and a pinion that meshes with the tooth portions of the left and right racks. You may comprise from. Then, the rotation shaft of the pinion and the both-axis motor may be coupled by a rotation transmission cable to drive the pinion to rotate.

A limit switch 20 is attached near the upper end of the linear guide rail, and a limit switch 21 is also attached near the lower end. When the side bracket 16 moves up and down and reaches the upper limit position, it contacts the limit switch 20 and turns on the limit switch 20. Further, when reaching the lower limit position, the side bracket 20 contacts the limit switch 21 and the limit switch 21 is turned on.

A controller 5 is attached by a controller bracket 6 to the lower right side of the fixed portion top plate 101. A power cord 27 is electrically connected to the controller 5, and an output terminal of the controller 5 is electrically connected to the biaxial motor by a wire cable 7. The touch panel switch 24 having a stop button, an up button, and a down button is electrically connected to the input terminal of the controller 5, and the limit switches 20 and 21 are also electrically connected to the input terminal of the controller 5. These input terminals may be separate or shared.

Since the hanging cabinet of this embodiment has the above-mentioned structure, it operates as follows.

With the plug of the power cord 27 inserted in the power outlet, the power switch 32 is turned on and the lower button of the touch panel switch 24 is pressed. Then, the positive rotation electric power is supplied from the controller 5 to the both-axis motor 1 to rotate the both-axis motor 1 in the forward direction, and the rotation transmission cable 2,
Rotational torque is transmitted to the worm gear 30 and the worm wheel 31 by 3. And the feed screw shaft 12,
13 is rotated, the feed screw nuts 14 and 15 are moved downward, and at the same time, the elevating part that is suspended by the side brackets 16 and 17 is guided by the linear guide rails while keeping the horizontal posture, It descends smoothly and without vibration or noise. When it further descends and reaches the lower limit position, the side bracket 16 comes into contact with the limit switch 21 to be turned on, and sends a stop signal to the controller 5. Then, the output power from the controller 5 to the two-axis motor 1 becomes zero, and the two-axis motor stops. When the lift switch of the touch panel switch 24 is pressed, the lift unit moves up and automatically stops at the upper limit position. When it is desired to stop at an intermediate position between the upper limit position and the lower limit position, when the hand is released from the touch panel switch 24, the vertical movement of the elevating unit is stopped.

[0019]

According to the present invention as set forth in claim 1, since it has a lifting mechanism driven by a biaxial motor and a flexible rotation transmission cable, the width of the hanging cabinet can be freely designed. There is an effect that it is possible to reduce the size.

Further, according to the present invention as set forth in claim 1, since the linear guide rails and the elevating drive section are provided between the left and right side surfaces of the elevating section and the left and right side surfaces of the fixing section, respectively, There is an effect that it can move up and down smoothly while maintaining a horizontal posture and without causing vibration or noise.

Further, according to the present invention as set forth in claim 1, since the elevating mechanism does not affect the wall surface or the ceiling, the fixing portion may be fixed to the ceiling or the wall surface like a general hanging cabinet, and the mounting place. There is an effect that you can freely choose.

According to the second aspect of the present invention, since the elevating and lowering drive unit has a simple and simple structure, it is possible to reduce the parts cost and the assembly cost, and moreover, the number of failures is small.

[Brief description of drawings]

FIG. 1 is a schematic view of a lifting mechanism according to an embodiment.

FIG. 2 is an external view of a hanging cabinet according to the embodiment.

FIG. 3 is a schematic view of a worm gear and a worm wheel of the embodiment.

[Explanation of symbols]

 1 Double Shaft Motor 2 Rotation Transmission Cable 201 Inner Cable 202 Outer Tube 203 Motor Mounting Part 3 Rotation Transmission Cable 4 Motor Bracket 5 Controller 6 Controller Bracket 7 Electric Cable 8 Gear Box 9 Gear Bracket 10 Gear Box 11 Gear Bracket 12 Feed Screw Shaft 13 Feed screw shaft 14 Feed screw nut 15 Feed screw nut 16 Side bracket 17 Side bracket 18 Direct acting guide rail 19 Direct acting guide rail 20 Limit switch 21 Limit switch 22 End bearing 23 End bearing 24 Touch panel switch 25 Electric wire cable 26 Electric wire cable 27 Power supply Code 30 Worm gear 31 Worm wheel 32 Power switch 50 Hanging cabinet 60 Washing 101 fixed part top plate 102 fixed part back plate 103 fixed part right side plate 104 fixed part left side plate 105 fixed part front plate 111 elevating part top plate 112 elevating part back plate 113 elevating part right side plate 114 elevating part left side plate 115 shelf plate 116 elevating Bottom plate

Front page continued (72) Inventor Takuya Kuriyama 1-14-7 Maruyama, Isogo-ku, Yokohama Oi Manufacturing Co., Ltd. (72) Inventor Junichi Maekawa 1-14-7 Maruyama, Isogo-ku, Yokohama Oi Co., Ltd. Inside the factory

Claims (2)

[Claims] 1. A hanging door shelf having an elevating mechanism in which an elevating part including a shelf board can be moved up and down with respect to a fixed part by driving a motor, and each of the left and right side faces of the elevating part and the left and right side faces of the fixed part. Between the linear motion guide rail that guides the elevating part up and down,
The left and right drive shafts of the two-axis motor arranged above the elevating part are respectively coupled by flexible rotation transmission cables, and the elevating drive part vertically drives the elevating part by the driving force of the motor. Hanging cabinet with lifting mechanism. 2. The lifting drive unit has a lower end rotatably supported by the fixed unit, a worm wheel fixed to the upper end, a feed screw shaft extending in the vertical direction, and a worm gear meshing with the worm wheel. And a feed screw nut fixed to the elevating part and screwed onto the feed screw shaft, The hanging cabinet provided with the elevating mechanism according to claim 1.