JP2009011754A - Elevating/lowering type wall cabinet and modular kitchen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevating/lowering type wall cabinet which prevents sound generated from a drive part from leaking to the outside. <P>SOLUTION: The elevating/lowering type wall cabinet 110 includes a cabinet 170 whose bottom surface and front surface are opened, doors 172 and 174 arranged on the front surface of the cabinet 170, an elevating/lowering rack 180 supported so as to be elevated and lowered to the cabinet 170, a driving motor 190 as the drive part for elevating and lowering the elevating/lowering rack 180, and a soundproof box part 300 covering the periphery of the driving motor 190. The soundproof box part 300 attenuates the sound generated from the driving motor 190. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lifting rack that can lift and lower a lifting rack that is a storage part and attenuates sound during lifting, and a system kitchen including the same.

  In kitchens, there is often a space above the cooking equipment such as a kitchen, so a hanging cupboard is often installed above the kitchen. In the kitchen, a variety of items are used, such as dishes such as rice cakes, dishes and cups, cooking utensils such as pots and pans, and seasonings such as salt and pepper. For this reason, these tableware, cooking utensils, seasonings, etc. are stored in the said hanging cupboard.

  In addition, with the diversification of lifestyles and eating habits, the above-mentioned tableware, cooking utensils, seasonings and the like are on an increasing trend. Furthermore, with recent aging, there is also a demand for ease of use and convenience of the above hanging cabinet.

  In view of this, there has been proposed an elevating-type hanging door shelf that raises or lowers a shelf (rack) that is normally positioned above manually or electrically. For example, the lifting cabinet can be moved up and down (for example, Patent Document 1), or the door placed on the front of the hanging cabinet is opened, and the storage shelf installed in the hanging cabinet is supported by a rotating arm. There are those that are pulled down toward the front side (for example, Patent Document 2), cabinets, and those that have a lifting rack that can be moved up and down in a substantially vertical direction from the cabinet (for example, Patent Document 3).

In the configuration described in Patent Document 1, there is a problem that the entire lifting cabinet is moved up and down, so that the lifting device becomes large, and the driving mechanism is visible from the outside, so that it is difficult to improve the aesthetics. Moreover, in the structure described in patent document 2, since the storage shelf pulled down approached the chef and got down, it became a hindrance to cooking work, and a storage shelf must be taken in and out frequently. There is a problem that it takes time and effort. For this reason, in recent years, as described in Patent Document 3, a configuration having a lifting rack that can be lifted and lowered in a substantially vertical direction from a cabinet has been widely adopted.
Japanese Patent Laid-Open No. 11-46886 JP 2004-222886 A JP 2006-000677 A

  2. Description of the Related Art In recent years, lifting racks for lifting cabinets that are lifted and lowered by electric power have become mainstream.

  Therefore, as a drive unit for raising and lowering the above-described lifting rack, a DC motor having the advantages that even when the starting current is small, a large force can be obtained at the time of starting, high-speed rotation can be obtained, and the number of rotations can be easily adjusted. Is used.

  In a general configuration of a DC motor, a plurality of electromagnets in which a copper wire is wound around a magnet and an iron core rotate the shaft by repeating attraction and repulsion by a magnetic force around the rotation shaft.

  However, direct current motors tend to generate vibration and noise due to the attraction and repulsion of the electromagnetic force acting between the magnet and the electromagnet. For this reason, it may be worrisome depending on the user of the elevating type hanging cabinet.

  Then, this invention aims at providing the raising / lowering type hanging cabinet which prevented the sound generated from a drive part from leaking outside.

  In order to solve the above-described problems, a typical structure of a lifting / lowering cabinet according to the present invention includes a cabinet having an open bottom surface and a front surface, a door disposed on the front surface of the cabinet, and lifting / lowering with respect to the cabinet. A lifting rack that is supported so that the lifting rack is installed above the kitchen, and includes a drive unit that lifts and lowers the lift rack, and a soundproof box that covers the periphery of the drive unit. To do.

  With the above configuration, the drive unit that raises and lowers the lifting rack is covered with the soundproof box. That is, the sound generated from the drive unit is sound-insulated by the soundproof box unit, and the leakage of sound from the drive unit to the outside of the soundproof box unit can be attenuated. Thereby, the sound generated each time the lifting rack is raised and lowered can be attenuated, and the user can comfortably use the lifting type hanging cabinet.

  Further, the elevating-type hanging cabinet further includes a back plate for fixing the drive unit on the front side, and the back plate is provided with a through-hole through which the drive shaft constituting the drive unit passes, and the soundproof box portion is provided on the back side. It is a box-shaped member provided with five surfaces from which the side wall surface is missing, and the drive unit may be included in the soundproof box part by fixing the soundproof box part to the back plate.

  As a result, the drive unit is covered by the soundproof box portion and five surfaces are covered by the back plate, and all of these six surfaces are covered. In addition, the back plate is provided with a through-hole that allows the drive shaft to pass therethrough, so that the drive part can be operated without any problem, the opening part where sound leakage occurs can be minimized, and the opening part can be provided on the back face. Since it is directed to the side, it is possible to maximize the sound insulation effect.

  Further, a sound absorbing member may be disposed on the inner surface of the soundproof box. Thereby, since the sound generated from the drive unit is absorbed by the sound absorbing member, the leakage can be significantly attenuated. By combining the sound insulation function of the soundproof box and the sound absorption function of the sound absorbing member, sound insulation can be performed more reliably.

  The sound absorbing member may be a foamed resin material. Since the foamed resin material contains a large amount of gas in its structure, the sound absorption rate is higher than that of the unfoamed resin. Thereby, the sound generated from the drive unit can be absorbed more efficiently.

  The cabinet door is composed of an upper door and a lower door which are divided into upper and lower parts. The cabinet door is fixedly installed on the cabinet and pivots around two reels each wound around the hoisting rack and the lower door. A supporting lower door pulley may be provided.

  In the above configuration, since the ropes that respectively suspend the lifting rack and the lower door are wound around two reels that are rotatable in the same direction on the same rotating shaft, the lifting rack or the lower door When one rises, the other moves in conjunction. Therefore, the lower door rises in conjunction with the lowering of the lifting rack, and the sum of the amounts of movement of both devices becomes an open space. Therefore, it is possible to secure a sufficient open space on the front surface without lengthening the lowering stroke. Become.

  In addition, since the load on the lifting rack and the lower door is applied to each other around the rotation axis, the tension to rotate the reel is offset, reducing the load to move and maintain the lifting rack and the lower door to any position This makes it possible to save power and reduce costs.

  Further, the lower door may be moved up and down in conjunction with the lifting rack. With the above configuration, the lifting and lowering of both the lifting rack and the lower door can be controlled by one power source (drive motor). In addition, by the structure in which the lower door is lifted and lowered indirectly via the lifting rack, the mechanism for transmitting power from the drive motor to the lifting rack and the mechanism for transmitting power from the lifting rack to the lower door are made independent. The transmission mechanism can be formed only by a combination of a cable body and a pulley in the plane. Therefore, it is possible to realize an interlocking mechanism between the lifting rack and the lower door without causing an increase in cost and a decrease in reliability due to a complicated mechanism.

  Furthermore, since the lower door is not directly receiving power from the drive motor, the lower door is also stopped in conjunction when the lifting rack cannot be raised or lowered due to some accident. Accordingly, only the lower door operates against the stop of the lifting rack, and secondary damage does not occur.

  Further, the upper door may be attached to the cabinet so as to be opened and closed, and the lower door may be moved up and down in the direction opposite to the lifting and lowering of the lifting rack.

  That is, when the lifting rack is housed in the cabinet, the storage items in the lifting rack are covered by the upper door and the lower door. When the lifting rack descends and appears below the cabinet, the lower door moves upward in conjunction with this. Thereby, even if the upper end of the lifting rack does not descend from the lower end of the cabinet, the open front of the lifting rack appears in front of the user. Therefore, the movable range of the lifting rack can be narrowed, the lifting operation time can be shortened, and the height of the lifting rack can be increased to increase the volume.

  According to the other structure of this invention, said raising / lowering type hanging cupboard was provided above the kitchen, It is characterized by the above-mentioned. Thereby, the system kitchen provided with the raising / lowering type hanging cupboard which attenuate | damped the sound which the drive part which raises / lowers an raising / lowering rack generate | occur | produces remarkably is provided.

  As described above, according to the elevating-type hanging cabinet of the present invention and the system kitchen provided with the same, it is possible to provide a system kitchen in which the sound generated by the drive unit that raises and lowers the elevating rack is significantly attenuated.

  DESCRIPTION OF EMBODIMENTS Embodiments of an elevating type hanging cabinet according to the present invention and a system kitchen provided with the same will be described with reference to the drawings. The dimensions, materials, and other specific numerical values shown in the following embodiments are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. Further, in the present specification and drawings, constituent elements having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

  In the present embodiment, the lifting rack of the kitchen lifting rack (hereinafter abbreviated as “hanging rack”) and the lower door that closes the front surface of the lifting rack are interlocked to move both devices in opposite directions. . Therefore, a sufficient open space on the front surface can be secured without increasing the descending stroke of the lifting rack. Moreover, in order to attenuate the sound generated from the drive unit that operates the lifting rack, it is possible to provide a comfortable lifting shelf with a soundproofing mechanism. Here, in order to facilitate understanding of the present embodiment, the arrangement of the hanging cabinet and the drive mechanism will be described first, and then the features of the present embodiment will be described in detail.

  FIG. 1 is a perspective view showing the positional relationship between the system kitchen and the hanging cupboard of this embodiment. In the system kitchen 100, cooking utensils such as fire (heating) and water necessary for cooking are arranged in each storage according to the size. Although the hanging cupboard 110 is installed above the system kitchen 100, the storage part is lowered to the level of the eyes of the kitchen user without opening and closing the door in the high place, and the object is stored by reaching forward. Can be stored or taken out.

  The system kitchen 100 is composed of roughly three parts: a sink 130, a cooking space 140, and a stove 150. In the system kitchen 100, the hanging cupboard 110 is fixedly supported on the back surface of the wall 500 above the region extending across the width of the sink 130 and the cooking space 140. On the other hand, a range hood 160 is fixedly supported on the wall 500 in the same manner as the hanging cabinet, adjacent to the hanging cabinet 110, above the stove 150 that handles fire.

  The hanging cabinet 110 includes a cabinet 170 that is open at the bottom and a lifting rack 180 that moves up and down the cabinet 170 below the cabinet 170. The lifting rack 180 has a storage portion, and most of the front surface is open so that dishes and articles around the kitchen can be taken in and out.

  In addition, an upper door 172 and a lower door 174 are disposed on the front surface of the cabinet 170, and these cover the contents in the lifting rack 180 when the lifting rack 180 is accommodated in the cabinet 170. Yes. When the lifting rack 180 is lowered by a drive mechanism described later and appears below the cabinet 170, the lower door 174 moves upward in conjunction with this. Therefore, even if the upper end of the lifting rack 180 does not descend from the lower end of the cabinet 170, the open front of the lifting rack 180 appears in front of the user. With this configuration, the movable range of the lifting rack 180 can be narrowed, the lifting operation time can be shortened, and the height of the lifting rack 180 can be increased to increase the volume. A drive mechanism for interlocking the lifting rack 180 and the lower door 174 will be described below.

  Note that the upper door 172 does not move regardless of whether the lifting rack 180 is raised or lowered. However, the upper end of the upper door 172 is hinged to the top plate of the cabinet 170, and the lower end is a free end. Therefore, by lifting the lower end, the upper door 172 can be opened upward with the upper end as an axis.

(Driving rack drive mechanism)
FIG. 2 is a view showing a drive mechanism of the lifting rack 180. Here, observation is mainly made from the front side of the hanging cupboard 110 in order to explain the lifting operation of the lifting rack 180. In order to facilitate understanding, the lower door 174 is not shown in FIG.

  First, two wide cable bodies 200 are unwound from the drive pulley 192 in the horizontal direction by the rotation of the drive motor 190 as a drive unit. The wide cable body 200 is fixedly installed in the vicinity of both side plates of the cabinet 170 and is turned in the vertical direction by a turning pulley 210 that functions as a fixed pulley, and ends thereof are fixed to a lifting rack 180 and function as a moving pulley. 212 is wound and fixed above the cabinet 170. Therefore, the elevating rack 180 can be raised and lowered by rotationally driving the drive motor 190. Here, the rope includes not only the rope but also a belt.

  In the present embodiment, the drive motor 190 uses a DC motor. The direct current motor has the advantage that it is easy to control and can be operated smoothly, and can be suitably used for an elevating type hanging cabinet, but the present invention is not limited to this, and an alternating current motor is also suitable. Can be used.

  When the lifting rack 180 is lowered in this manner, the storage unit 220 appears from the back surface of the lower door 174 (not shown).

(Lower door drive mechanism)
FIG. 3 is a view showing a drive mechanism of the lower door 174 interlocked with the lifting rack 180. In FIG. 3, the hanging cupboard 110 is observed from the side. Here, the lower door 174 moves up and down in conjunction with the lifting rack 180 shown in FIG.

  FIG. 3A shows a state where the lifting rack 180 is stored in the cabinet 170. A lower door pulley 250 as a fixed pulley is fixedly installed between the lifting rack 180 and the lower door 174. The lower door pulley 250 is rotatably supported with two shafts (first reel 252 and second reel 254) connected to each other with the same shaft. A cable body that suspends the lifting rack 180 is wound around the first reel 252, and a cable body that suspends the lower door 174 is wound around the second reel 254.

  Here, the first cable body 260 and the second cable body 262 that respectively suspend the lifting rack 180 and the lower door 174 are wound around the reel in reverse rotation, so the lifting rack 180 or the lower door 174 is wound. When one of the rises, the other falls in conjunction.

  FIG. 3B shows a state where the lifting rack 180 is extracted from the cabinet 170. When the lifting rack 180 is lowered while being guided by the guide rail 264, the first rope 260 pulls the first reel 252, and the second reel 254 connected to the first reel 252 is centered on the rotation shaft 256 and the first reel 252. Rotate by the same angle as. Then, the connecting portion 266 and the lower door 174 connected to the second rope body 262 are raised by the winding tension of the second reel 254. Accordingly, the lower door 174 rises in accordance with the lowering of the lifting rack 180, and the sum of the movement amounts becomes an opening space of the lifting rack 180. Therefore, a sufficient opening space on the front surface of the lifting rack 180 can be obtained without increasing the lowering stroke. It can be secured.

  At this time, since the loads on the lifting rack 180 and the lower door 174 are applied to each other around the rotating shaft 256, the tension for rotating the first reel 252 and the second reel 254 is offset, and the lifting rack 180 and the lower door 174 are offset. The load for moving and maintaining the door 174 to an arbitrary position can be reduced, and power saving and cost reduction can be achieved.

(Soundproof mechanism of the drive unit)
Such an elevating rack 180 enables an automatic elevating operation, but the drive motor 190 as a drive unit is likely to generate vibration and sound due to the attraction and repulsion of the electromagnetic force acting between the magnet and the electromagnet. For this reason, it may be worrisome depending on the user of the elevating type hanging cabinet 110. In the following, a configuration for soundproofing the sound generated from the drive motor 190 will be described.

  FIG. 4 is an explanatory diagram for explaining a soundproof mechanism in the present embodiment. Such a soundproof mechanism includes a soundproof box 300, a back plate 310, and a sound absorbing member 320. FIG. 4 is a view of the soundproofing mechanism around the drive motor 190 from above. For the sake of clarity, the upper plate and the lower plate constituting the soundproof box 300 are omitted. FIG. 5 is an exploded view of the soundproofing mechanism around the drive motor 190 as seen from the back side.

  As shown in FIGS. 4 and 5, the drive motor 190 is attached to the back plate 310. The back plate 310 is provided with a through hole 312 through which the drive shaft (shown as B in FIG. 4) of the drive pulley 192 perpendicular to the motor shaft of the drive motor 190 (shown as A in FIG. 4) is passed.

  On the other hand, the soundproof box 300 is formed by sheet metal sheet, and has a box shape having five surfaces from which a wall on the back side is missing. Then, by fixing the soundproof box 300 to the back plate 310, the drive motor 190 is included in the soundproof box 300.

  With the above configuration, the drive motor 190, which is the main sound source of the drive unit, is covered on the six surfaces by the soundproof box 300 and the back plate 310, and almost all surfaces are sealed. Accordingly, the sound generated from the drive motor 190 is sound-insulated, and the leakage of sound to the outside can be blocked or significantly attenuated. Thereby, the user can use the hanging cupboard 110 comfortably.

  In the present embodiment, the metal plate is made of a galvanized steel plate, but it is sufficient if it has a sound insulation effect, and the present invention is not limited to this.

  Since the through hole 312 provided in the back plate 310 is an opening portion in the present embodiment, sound leakage may occur from this portion. However, by passing the drive shaft B through the through hole 312, the area of the opening where sound leakage occurs can be minimized while operating the drive pulley 192 attached to the drive motor 190 without problems. Moreover, since the through-hole 312 which is an opening part faces the back side, it becomes possible to draw out the sound insulation effect to the maximum. By evenly covering the periphery of the drive motor 190 with the soundproof box 300 and the back plate 310, the sound insulation effect can be maximized. In addition, sound leakage can be further reduced by sealing the through hole 312. Further, a heat exhaust port for releasing heat generated from the drive motor 190 may be provided above the back plate 310. Since the heat exhaust port faces the back side like the through-hole 312, it is possible to minimize the influence on the sound insulation effect. Furthermore, since the heat exhaust port is provided above the back plate 310, the heat is diffused upward, so that the heat from the drive motor 190 can be efficiently discharged and the life of the drive motor 190 is extended. Is possible.

  A sound absorbing member 320 made of a foamed resin material is provided on the inner surface of the soundproof box 300. Since the foamed resin material contains a large amount of gas in its structure, the sound absorption rate is higher than that of the unfoamed resin. Therefore, the sound generated from the drive motor 190 can be absorbed more efficiently. In the present embodiment, foamed polyurethane is used as the foamed resin material. However, any foamed resin material or glass wool can be suitably used as long as it has a sound absorbing effect.

  That is, the soundproof box 300 blocks sound transmission by its rigidity and prevents it from leaking outside. On the other hand, the sound absorbing member 320 absorbs sound vibration and attenuates the sound inside the soundproof box 300. The sound generated from the drive motor 190 can be greatly reduced by these two functions. According to the configuration of the soundproof mechanism in the present embodiment, the sound generated from the drive motor 190 can be attenuated from about 55 dB to about 40 dB.

  Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  For example, in the above-described embodiment, the soundproofing mechanism has a configuration having a hexahedron. A simple shape or a structure in which the soundproof box and the back plate are doubled may be used.

  The present invention is a hanging cabinet provided on a wall surface above a system kitchen, and is applicable to a kitchen lifting cabinet that houses a lifting rack inside.

It is the perspective view which showed the positional relationship of the system kitchen of this embodiment, and a hanging cupboard. It is the figure which showed the drive mechanism of the raising / lowering rack. It is the figure which showed the drive mechanism of the lower door interlock | cooperated with a raising / lowering rack. It is explanatory drawing for demonstrating a sound-insulation mechanism. It is the exploded view which looked at the soundproofing mechanism from the back side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... System kitchen 110 ... Hanging cupboard 130 ... Sink 140 ... Cooking space 150 ... Stove 160 ... Range hood 170 ... Cabinet 172 ... Upper door 174 ... Lower door 180 ... Lifting rack 190 ... Drive motor 192 ... Drive pulley 200 ... Wide cable body 210 ... turning pulley 212 ... elevating pulley 250 ... lower door pulley 252 ... first reel 254 ... second reel 256 ... rotating shaft 260 ... first rope 262 ... second rope 264 ... guide rail 266 ... connecting portion 300 ... Soundproof box 310 ... Back plate 312 ... Through hole 320 ... Sound absorbing member 500 ... Wall

Claims (8)

In an elevating-type hanging cabinet provided above a kitchen, comprising a cabinet with an open bottom and a front surface, a door arranged on the front surface of the cabinet, and an elevating rack supported so as to be movable up and down with respect to the cabinet. ,
A drive unit for raising and lowering the lifting rack;
A soundproof box covering the periphery of the drive unit;
Elevating type hanging cupboard characterized by comprising. A back plate for fixing the drive unit on the front side;
The back plate is provided with a through hole through which the drive shaft that constitutes the drive unit passes,
The soundproof box portion is a box-shaped member having five surfaces from which a wall on the back side is missing,
The elevating-type hanging cabinet according to claim 1, wherein the drive unit is enclosed in the soundproof box by fixing the soundproof box to the back plate.   The elevating-type hanging cabinet according to claim 1, wherein a sound absorbing member is disposed on an inner surface of the soundproof box.   The elevating-type hanging cabinet according to claim 3, wherein the sound absorbing member is a foamed resin material. The cabinet door is composed of an upper door and a lower door divided into upper and lower parts,
2. A lower door pulley that pivotally supports two reels that are fixedly installed in the cabinet and that are wound around the ropes that respectively suspend the lifting rack and the lower door are wound in opposite directions. The elevating type hanging cabinet according to any one of 4.   The elevating-type hanging cabinet according to claim 5, wherein the lower door moves up and down in conjunction with the elevating rack. The upper door is attached to the cabinet so as to be opened and closed,
The elevating-type hanging cabinet according to claim 1, wherein the lower door moves up and down in a direction opposite to that of the elevating rack.   The system kitchen provided with the raising / lowering type hanging cupboard of any one of Claim 1 thru | or 4 above the kitchen.

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