JP2005030165A - Cupboard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a clearability and sanitarily keep a cupboard, and to attain the excellent workability of a sliding door. <P>SOLUTION: Upper and lower rail 28 are installed to the upper and lower sections of the inner periphery of an opening section opened to a main body, and the opening section is opened and closed by a pair of the sliding doors 30 and 32 slidably supported between both rails 28. Guide grooves 42 and 44 guiding the lower ends of each sliding door 30 and 32 and having an arcuate cross section are formed to the lower rail 28. Projecting sections 50 slidably brought into contact on arcuate internal surfaces in the guide grooves 42 and 44 are formed on the bases of the sliding doors 30 and 32 respectively. The curvatures of arcuate projecting surfaces in the projecting sections 50 are set at values smaller than those of the arcuate internal surfaces in the guide grooves 42 and 44. When the sliding doors 30 and 32 are opened and closed, the projecting sections 50 are returned automatically up to places brought into contact with the deepest sections of the arcuate internal surfaces of the projecting sections 50 by the inclinations of the arcuate internal surfaces when the projecting sections 50 are displaced back and forth in the guide grooves 42 and 44. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cupboard that closes an opening formed in a main body so as to be opened and closed by a pair of sliding doors.

  Traditionally, in cupboards installed in kitchens, a rectangular opening that opens forward is opened at the front of a box-shaped body that is formed by bending a stainless steel plate, and the inner periphery of this opening An upper rail and a lower rail, which are formed by bending a stainless steel plate into a U-shape, are arranged in two rows in the front and rear, respectively, at the upper part and the inner peripheral lower part. The front sliding door is slidably supported between the upper and lower rails located on the front side, and the rear sliding door is slidably supported between the upper and lower rails located on the rear side, and the opening can be opened and closed by both sliding doors. (See, for example, Patent Document 1).

In addition, the upper rail is folded into a bag shape or an L shape, and a roller is disposed on the upper part of the sliding door, and the sliding door is suspended from the upper rail via the roller, thereby floating the lower end of the sliding door. In some cases, the opening can be opened and closed.
JP 10-137050 A

  In the configuration of Patent Document 1, the operation of sweeping out dust and wiping off dirt that has entered the lower rail is cumbersome and tends to be unsanitary, and causes a problem that smooth sliding of the sliding door is hindered.

  On the other hand, when a hanging type sliding door is adopted, the lower rail can be omitted and the inner peripheral lower part of the opening can be made flat to maintain good cleaning performance and sliding property of the sliding door. However, since the lower end of the sliding door is floating, the sliding door wobbles in the front-rear direction perpendicular to the sliding direction at the time of opening / closing operation, and the operability is lacking. In the cupboard shelf, a concave side frame is provided on the inner peripheral side of the opening to accommodate the side edge of the sliding door so that no gap is generated, but the sliding door wobbles in the front-rear direction. Then, the side edge portion of the sliding door collides without being smoothly accommodated in the side frame, and the sliding door or the side frame may be deformed. Further, since the mass of the entire sliding door is added to the upper rail, the holding rail is lacking in the rail that is simply bent stainless steel, and the upper rail is deformed when the cupboard is transported or carried in. This causes a problem that the sliding property of the sliding door cannot be obtained when the is installed.

  That is, the present invention has been proposed to solve the above-mentioned problems inherent in the prior art, and it has been proposed to suitably solve this problem. It is an object to provide a cupboard that can achieve easy operability.

In order to overcome the above problems and achieve the desired purpose suitably, the cupboard according to the present invention comprises:
In the cupboard which is provided with an upper rail and a lower rail on the inner peripheral upper part and the inner peripheral lower part of the opening established in the main body, and opens and closes the opening by a pair of sliding doors slidably supported between both rails,
A guide groove formed in the lower rail and spaced apart in the front-rear direction to guide the lower end of each sliding door is arcuate, extending in parallel with the sliding direction of the sliding door; and
A projecting portion that is provided on the bottom surface of the sliding door and that slidably contacts the arcuate projecting surface having a smaller curvature than the curvature of the arcuate inner surface of the guide groove;
In the opening / closing operation of the sliding door, when the protrusion is displaced back and forth in the guide groove, it is configured to return along the arc-shaped inner surface to a position where the protrusion contacts the deepest portion of the arc-shaped inner surface. Features.

  According to the cupboard according to the present invention, since the guide groove that supports the lower end of the sliding door is formed in an arc shape, the cleaning property can be improved and it can be kept hygienic. In addition, since the curvature of the arcuate projecting surface of the projection contacting the guide groove is set smaller than the curvature of the arcuate inner surface of the guide groove, even if the projecting part is displaced back and forth, the projecting part of the arcuate inner surface is inclined by the inclination of the arcuate inner surface. Since it returns to the position which touches the deepest part, the said sliding door slides stably and operativity becomes favorable.

  Since the restricting portion is provided at the edge of each guide groove, the sliding door is prevented from falling off the lower rail. Further, even when the handle provided on the front surface of the sliding door comes into contact with the other sliding door, the sliding door can easily move back and forth and escape, so that the sliding door can be deformed by applying a large force. Damage is prevented.

  The shape of the guide groove formed on the lower rail and guiding the lower end of the sliding door is formed so that the cross section is arcuate. Further, the arcuate projecting surface of the projecting portion provided on the bottom surface of the sliding door and sliding on the arcuate inner surface of the guide groove has a curvature smaller than the curvature of the arcuate inner surface.

  Next, the cupboard according to the present invention will be described below with reference to the accompanying drawings by citing preferred embodiments. As shown in FIG. 2, the cupboard (cupboard) 10 according to the embodiment is opened forward by assembling a pair of side plates 12, 14, a top plate 16, a bottom plate 18 and a back plate (not shown). A box-shaped main body 20 is configured. Inside the main body 20, a partition plate 22 is disposed at a substantially intermediate position in the vertical direction. Inside the main body, a storage chamber 24 is defined vertically with the partition plate 22 in between. Yes. In addition, shelf support pillars (not shown) are arranged on the opposite inner surfaces of the side plates 12 and 14 facing the storage chambers 24 so as to be separated from each other in the front-rear direction. A shelf member (none of which is not shown) on which tableware or the like is placed can be arranged in multiple stages via a shelf holder that is detachably locked to. Further, the side plates 12, 14, the top plate 16 and the bottom plate 18 are configured by filling foamed urethane inside a box-shaped main body formed of a stainless steel plate, and have the necessary strength even if the stainless steel plate is thin. In addition to ensuring, the noise reduction is improved.

  In the front part of the main body 20, a rectangular opening 20 a that opens forward is formed above and below the partition plate 22. An upper rail 26 and a lower rail 28 are provided on the inner peripheral upper portion and the inner peripheral lower portion of each opening 20 a over the entire length in the width direction, and a front sliding door is provided between the upper rail 26 and the lower rail 28. 30 and the rear sliding door 32 are each slidably supported in the width direction so that the opening 20a can be opened and closed.

  In the embodiment, the right half of the front sliding door 30 is brought into contact with the inner surface of the right side plate 12 to close the right half of the opening 20 a, and the left end of the rear sliding door 32 is brought into contact with the inner surface of the left side plate 14. Thus, the left half of the opening 20a is closed. And in the state which closed the opening part 20a with both the sliding doors 30 and 32, the left side part of the front sliding door 30 and the right side part of the rear sliding door 32 overlap back and forth so that the sealing property of this opening part 20a may be ensured. It has become. As shown in FIG. 3, a right covering portion 12 a that protrudes to the front side of the right side portion of the front sliding door 30 in the state in which the opening portion 20 a is closed by the front sliding door 30 is provided inside the front portion of the right side plate 12. It is formed so as to extend in the vertical direction, and is configured to ensure sealing between the front sliding door 30 and the right side plate 12. Similarly, on the inner side of the front portion of the left side plate 14, a left covering portion 14 a that protrudes to the front side of the left side portion of the rear sliding door 32 extends in the vertical direction with the opening 20 a being closed by the rear sliding door 32. It is formed so as to exist, and is configured to ensure a sealing property between the rear sliding door 32 and the left side plate 14.

  Since the upper and lower rails 26 and 28 provided corresponding to the upper and lower openings 20a have the same structure, only the structure of the upper and lower rails 26 and 28 corresponding to the upper opening 20a will be described.

  As shown in FIG. 4, the upper rail 26 corresponding to the upper opening 20a is formed on the lower side of the front portion of the top plate 16 constituting the upper part of the inner periphery of the opening 20a and extends over the entire length in the width direction. A hanging portion 34 that extends and a U-shaped rail frame 36 that is disposed so as to extend in parallel to the hanging portion 34 on the back side (storage chamber side) from the hanging portion 34 and open downward. The The upper part of the front sliding door 30 slidably faces a front groove 38 defined between the hanging part 34 and the rail frame 36 and extending in the width direction, and the rear groove defined in the rail frame 36. 40, the upper part of the rear sliding door 32 faces to be slidable. An upper rail 26 corresponding to the lower opening 20 a is provided below the front portion of the partition plate 22.

  The lower rail 28 corresponding to the upper opening 20a is integrally formed on the front upper side of the partition plate 22 constituting the inner peripheral lower portion of the opening 20a (lower opening). The lower rail 28 corresponding to 20a is formed integrally with the bottom plate 18.) As shown in FIG. 1, the guide grooves 42, 44 having an arcuate cross section, and preferably an arcuate shape having a large curvature, are separated from each other in the front-rear direction. It is formed to extend in parallel over the entire length in the width direction. The lower end of the front sliding door 30 is slidably supported by the front guide groove 42 positioned on the front side, and the lower end of the rear sliding door 32 is slidably supported by the rear guide groove 44 positioned on the rear side. Composed. In addition, the curvature of the arc-shaped inner surface in both the guide grooves 42 and 44 is set to R30, for example, so that the groove depth becomes shallow, so that the cleanability of the lower rail 28 can be improved. Further, the deepest portion of the arc-shaped inner surfaces of the guide grooves 42 and 44 is set so as to be positioned at the center portion in the front-rear direction of the guide grooves 42 and 44.

  The lower rail 28 is formed with a front restricting portion (regulating portion) 46 that is inclined at an obtuse angle upward with respect to the horizontal plane from the front end edge of the front guide groove 42 toward the front, and is supported by the front guide groove 42. The front regulating portion 46 is configured to prevent the lower end portion of the front sliding door 30 from being displaced forward from the guide groove 42 and falling off. The lower rail 28 is formed with a rear regulating portion (regulating portion) 48 extending substantially vertically from the rear end edge of the rear guiding groove 44, and is supported by the rear guiding groove 44 by the rear regulating portion 48. The lower end portion of the rear sliding door 32 is prevented from shifting backward from the guide groove 44. The rear regulating portion 48 functions to prevent dust or the like that has entered the lower rail 28 from entering the storage chamber 24.

  Next, since the front and rear sliding doors 30 and 32 have the same configuration, only the configuration of the front sliding door 30 will be described, and the same members will be denoted by the same reference numerals. That is, the front sliding door 30 is configured by filling urethane foam into the inside of a box-shaped main body formed of a stainless steel plate, and ensures the necessary strength and improves the silence. Further, on the bottom surface of the front sliding door 30, as shown in FIG. 1, a protrusion 50 having an arcuate protrusion (preferably an arcuate protrusion) having a curvature smaller than the curvature of the arcuate inner surface of the front guide groove 42 is formed in the width direction. The arcuate projecting surfaces of the projecting portions 50 are in contact with the arcuate inner surface of the front guide groove 42. That is, the front sliding door 30 is slidably supported with respect to the front guide groove 42 via the two protrusions 50 and 50. When the sliding door 30 is tilted back and forth during the opening / closing operation of the front sliding door 30, the projections 50, 50 are displaced back and forth within the front guide groove 42, so that the projection 50, 50 is configured to automatically return along the arcuate inner surface to a position in contact with the deepest portion (center portion in the front-rear direction) of the arcuate inner surface. In other words, the front sliding door 30 automatically returns so that the protrusions 50 and 50 always face the deepest portion of the arcuate inner surface of the front guide groove 42 and slides stably.

  The protrusion 50 is made of synthetic resin and has a good slidability with respect to the front guide groove 42. In addition, since the front sliding door 30 is configured to slide in contact with the front guide groove 42 only at the two protrusions 50, 50, the contact area is reduced and can be slid more smoothly. In addition, the surface of the front sliding door 30 is coated with a fluororesin so that it is difficult to be hand-stained or stained.

  The deepest part of the arcuate inner surface of the front guide groove 42 is set to be located on the back side by a slight gap between the indoor side surface of the right covering portion 12a of the right side plate 12 and the front surface of the front sliding door 30. Is done. Similarly, the deepest portion of the arc-shaped inner surface of the rear guide groove 44 is located on the back side by a slight gap between the indoor side surface of the left covering portion 14a of the left side plate 14 and the front surface of the rear sliding door 32. It is set as follows. Thus, in a state where the protrusions 50, 50 of the respective sliding doors 30, 32 are in contact with the deepest part of the arcuate inner surface of the corresponding guide grooves 42, 44, the right side or the left side thereof becomes the right covering part 12a or the left covering part 14a. It is configured not to collide.

  As shown in FIG. 3, a synthetic resin handle 52 for opening and closing the sliding door 30 is disposed on the right side of the front surface of the front sliding door 30. This handle 52 has a flange 52c formed on the outer peripheral edge of a main body 52b in which a substantially oval groove 52a extending in the vertical direction is formed, and the main body 52b is opened from the front side to an opening (not shown) in the front sliding door 30. It is attached by fitting. The flange 52c is formed so as to decrease in thickness toward the outer edge, and is set so as to suppress the amount of protrusion from the front surface of the front sliding door 30 to be small. The same handle 52 is attached to the rear sliding door 32 on the left side of the front surface. The front and rear sliding doors 30, 32 have a gap between the rear surface of the front sliding door 30 and the front surface of the rear sliding door 32, and the handle 52 disposed on the rear sliding door 32 in a stationary state does not contact the front sliding door 30. Set to dimensions. In other words, the front and rear guide dimensions of the front and rear guide grooves 42 and 44 in the lower rail 28 are set so that the gap is provided from the thickness of the sliding doors 30 and 32 and the protrusion dimension of the handle 52.

  Next, the operation of the cupboard according to the above-described embodiment will be described. In the state in which the opening 20a of the cupboard shelf 10 is closed by a pair of sliding doors 30 and 32, as shown in FIG. 2, the front side of the right side or the left side is the corresponding right covering part 12a or left covering part 14a. In addition, the left side portion of the front sliding door 30 and the right side portion of the rear sliding door 32 overlap in the front-rear direction, and the sealing property of the opening 20a is ensured. Thereby, it is possible to prevent insects, dust and the like from entering the storage chamber 24, and to keep the tableware stored therein clean.

  For example, when the front sliding door 30 is slid to open the opening 20 a, the protrusions 50, 50 of the sliding door 30 slide along the front guide groove 42. The protrusions 50 and 50 are made of synthetic resin, and the curvature of the arcuate protrusion contacting the front guide groove 42 is set to be smaller than the curvature of the arcuate inner surface of the groove 42. Therefore, the contact area between the two is small and smooth. Smooth sliding is achieved. That is, the front sliding door 30 can be smoothly slid, and the operability is improved.

  Further, the protrusions 50, 50 of the front sliding door 30 are configured to always return to a position in contact with the deepest portion by the inclination (curved surface) of the arcuate inner surface of the front guide groove 42. When the door is closed, the front sliding door 30 is prevented from colliding with the right covering portion 12a while the front sliding door 30 is displaced in the front-rear direction. Further, the front sliding door 30 can be prevented from coming into contact with the handle 52 disposed on the rear sliding door 32. The same effect is obtained when the rear sliding door 32 is slid. That is, when the sliding doors 30 and 32 are opened and closed, the members collide with each other, and the sliding doors 30 and 32, the left and right covering portions 12 a and 14 a, or the handle 52 can be prevented from being deformed or damaged.

  Here, in order to prevent entry of insects and dust from the gap between the rear surface of the front sliding door 30 and the front surface of the rear sliding door 32, rubber packing is provided on the facing surface of one of the sliding doors. The packing may be configured to be in sliding contact with the facing surface of the other sliding door. In such a configuration, the rubber packing may come into contact with the handle 52. For this reason, conventionally, the handle 52 needs to have a shape that does not protrude from the surface of the sliding door, and the design is limited. However, in the cupboard 10 of the embodiment, since the guide grooves 42 and 44 are formed in an arc shape, when the handle 52 and the rubber packing are in contact, the protrusions 50 and 50 are along the arc-shaped inner surface. By easily moving back and forth and escaping, it is possible to avoid applying a large force to the sliding doors 30 and 32. Therefore, the allowable range of the design of the handle 52 can be expanded.

  Even if the rubber packing is not provided, the grip is set to prevent the insect from entering by minimizing the gap between the rear surface of the front sliding door 30 and the front surface of the rear sliding door 32. If 52 protrudes greatly from the sliding door surface, the handle 52 may come into contact with the other sliding door. However, even in this case, with the cupboard 10 of the embodiment, as described above, the sliding doors 30 and 32 can easily move in the front-rear direction, and the impact at the time of contact can be reduced. Further, the flange 52c protruding from the sliding door surface of the handle 52 becomes thinner and inclined toward the outer edge, so that when the sliding doors 30 and 32 come into contact with each other, the end faces hit each other. It is avoided that the above frying becomes impossible.

  Next, when the lower rail 28 is cleaned, the guide grooves 42 and 44 are both arcuate and shallow, so that dust can be easily swept away and dirt can be easily removed, so that it can always be kept hygienic. Further, the rear restricting portion 48 connected to the rear end edge of the rear guide groove 44 prevents dust and dust from entering the storage chamber 24 from the lower rail 28, and keeps the storage chamber 24 hygienic. Can do.

  The side plates 12, 14, the top plate 16 and the bottom plate 18 constituting the main body 20 are filled with foamed urethane, so that they are excellent in quietness and texture. In addition, the structure is hygienic because it does not allow insects or the like to enter. Furthermore, since the surface of the sliding doors 30 and 32 is coated with a fluororesin, it is difficult to get dirty and easy to clean. Furthermore, since the sliding doors 30 and 32 are simply configured to be slidably supported by the guide grooves 42 and 44 via the protrusions 50 and 50 provided on the bottom surfaces thereof, the maintainability is improved.

  In the embodiment, the front restricting portion (the restricting portion) that prevents the lower end portion of the front sliding door from being displaced forward from the guide groove and dropping is configured to extend over the entire length of the lower rail. As shown by a two-dot chain line in FIG. 4, on the front side of the front sliding door 30 in the lower rail 22, the restriction piece is partially placed at a position where forward movement can be restricted in any position of the front sliding door 30 in the open state and the closed state. A configuration in which the (regulator) 54 is provided may be employed. In the embodiment, a table cabinet for storing tableware has been described as a cupboard, but the items to be stored are not limited to tableware and the like, and are intended for cupboards for storing various other items. obtain.

  In the embodiment, the case where two protrusions are provided on the bottom surface of the sliding door has been described, but one protrusion having a predetermined length in the width direction may be provided on the bottom surface. Or the structure made into a protrusion can be employ | adopted by forming the bottom face of sliding door itself in an arc shape. In addition, the upper and lower rails provided on the upper and lower inner circumferences in the opening of the main body are not limited to those integrally formed on each plate constituting the main body, and the upper and lower rails configured separately are arranged on the corresponding plates. You may make it install. In addition, as a foaming material with which each board which comprises a main body, a partition plate, or a sliding door is filled, not only urethane foam but a polystyrene foam etc. may be sufficient.

It is a principal part vertical side view which shows the arrangement | positioning site | part of the lower rail of the cupboard which concerns on an Example. It is a front view which shows the cupboard shelf which concerns on an Example. It is a top view which shows a principal part in the state which removed the top plate from the cupboard which concerns on an Example. It is a principal part vertical side view which shows the upper and lower rail arrange | positioned at the upper opening part of the cupboard shelf which concerns on an Example, and the front and back sliding doors.

Explanation of symbols

20 body, 20a opening, 26 upper rail, 28 lower rail 30 front sliding door (sliding door), 32 rear sliding door (sliding door), 42 front guide groove (guide groove)
44 rear guide groove (guide groove), 46 front regulating part (regulating part), 48 rear regulating part (regulating part)
50 protrusion, 52 handle, 54 regulating piece (regulating part)

Claims (3)

An upper rail (26) and a lower rail (28) are provided at the upper and lower inner circumferences of the opening (20a) established in the main body (20), and are slidably supported between both rails (26, 28). In the cupboard that opens and closes the opening (20a) by a pair of sliding doors (30, 32),
Formed on the lower rail (28) and spaced apart in the front-rear direction, the cross-section for guiding the lower end of each sliding door (30, 32) is arcuate, before and after extending parallel to the sliding direction of the sliding door (30, 32) Guide groove (42,44),
Protrusions (50, 50) provided on the bottom surface of the sliding door (30, 32) and slidably contacting the arc-shaped projecting surface having a smaller curvature than the curvature of the arc-shaped inner surface of the guide groove (42, 44). And
During the opening / closing operation of the sliding door (30, 32), when the protrusion (50, 50) is displaced back and forth in the guide groove (42, 44), the deepest portion of the arc-shaped inner surface along the arc-shaped inner surface. A cupboard configured to return to a position where the protrusions (50, 50) contact each other.   The lower end of the sliding door (30, 32) corresponding to the front end edge of the front guide groove (42) and the rear end edge of the rear guide groove (44) of the lower rail (28) is the guide groove (42, The cupboard according to claim 1, further comprising a restricting portion (46, 48, 54) for preventing falling off from (44). On the front surface of the sliding door (30, 32), a handle (52) for opening and closing the sliding door (30, 32) is provided so as to protrude, and when the sliding door (30, 32) is opened and closed, the handle (52) When the sliding doors (30, 32) come into contact with each other, the sliding doors (30, 32) move in the front-rear direction along the arcuate inner surfaces of the guide grooves (42, 44). The cupboard according to claim 1 or 2, wherein the cupboard is configured to escape.

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