JP2023014505A - cabinet - Google Patents

Abstract

To provide a cabinet capable of further reliably functioning a closer by minimizing displacement of an opening/closing door at an offset position.SOLUTION: A cabinet comprises an upper guide rail 10 for supporting an upper side of an opening/closing door 3, the opening/closing door 3 attached at a position offset to a front side with respect to the upper guide rail 10, the opening/closing door 3 being a sliding door, and a closer 60 for forcibly moving the opening/closing door 3 to a closed position when the opening/closing door 3 is closed. The upper guide rail 10 includes a lower rail 12 and an upper rail 13 that extend along an opening/closing direction of the opening/closing door 3 and are provided at an interval apart from each other in the vertical direction. The opening/closing door 3 includes traveling rollers 34 coming into contact with the lower rail 12 and rolling with a gap formed from the upper rail 13, and a center roller 35 energized upward to come into contact with the upper rail 13 and rolling with a gap formed from the lower rail 12.SELECTED DRAWING: Figure 15

Description

The present invention relates to a cabinet that stores articles by opening and closing a door attached at an offset position.

Conventionally, in food stores such as supermarkets and convenience stores, the opening for taking out products is formed at an angle, and while securing a large shelf area for the lower shelf, the upper shelf has a wider area. A food display shelf (showcase) narrower than the lower shelf is used. In such a food display shelf, the user can see the products placed on the lower shelf without being disturbed by the upper shelf, and the user can take out the products on the lower side by bending down a little. It is convenient in that it is easy.

In order to maintain a hygienic condition, such a food display shelf is sometimes provided with a sliding door that covers the obliquely formed opening. An upper guide rail is provided above the opening, and the opening/closing door moves in the opening/closing direction while being supported by the upper guide rail. In addition, the opening/closing door, when attached to the main body, extends obliquely downward from the upper guide rail in the front direction, and is offset (shifted) to the front side with respect to the upper guide rail. (see, for example, Patent Document 1).

In addition, some food display racks having such inclined doors are provided with closers for forcibly moving (pulling) the opening/closing door to the closed position when the opening/closing door is closed. By providing this closer, it is possible to prevent the opening/closing door from being left in a half-open state, and to maintain a better sanitary condition when displaying food (see, for example, Patent Document 2).

Japanese Patent Application Laid-Open No. 2008-206640 JP 2019-037521 A

In the food display shelf described above, the position of the upper guide rail that supports the upper part of the opening/closing door and the position of the center of gravity of the opening/closing door are offset in the front-rear direction. Rotational moment is generated, and the upper part of the opening/closing door tends to tilt. In addition, when the opening/closing door tilts, the user's weight tends to be applied to the opening/closing door when the opening/closing door is opened/closed.

These loads cause the upper portion of the opening/closing door to be displaced vertically or longitudinally with respect to the closer body attached to the upper guide rail. More specifically, the position of the catching projecting piece provided on the side of the opening/closing door tends to shift in the front-rear and up-down directions with respect to the closer body. Therefore, there is a possibility that the catching protruding piece is not caught by the closer and the closer does not function.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and its object is to provide a cabinet that can more reliably function the closer by minimizing the displacement of the opening and closing door in the offset position. It is for

In order to solve the above-mentioned problems, the present invention has an upper guide rail for supporting an upper part of an opening/closing door, the opening/closing door is mounted at a position offset to the front side of the upper guide rail, and the opening/closing door is a sliding door. A cabinet including a closer for forcibly moving the opening/closing door to a closed position when the opening/closing door is closed, wherein the upper guide rail extends along the opening/closing direction of the opening/closing door. A lower rail and an upper rail are provided with a gap in the vertical direction, and the open/close door includes a traveling roller that contacts the lower rail and rolls with a gap from the upper rail, and an upper side rail. and a center roller that contacts the upper rail and rolls with a gap from the lower rail.

Further, on the side of the opening/closing door, a traveling member is provided that is hung while the opening/closing door is offset. A center roller unit that biases the center roller upward by the elasticity of the unit body may be provided.

Further, the unit main body may be provided with a notch and an elastic holder portion projecting from an end surface of the notch toward the inner side of the notch, and the center roller may be attached to the elastic holder portion. .

Further, the unit main body may be provided with a protrusion facing the lower rail or the upper rail with a gap in a state where the traveling member is assembled to the upper guide rail.

Furthermore, the notch is provided with an inner projection projecting toward the inside of the notch, and the rotating shaft of the center roller abuts against the inner projection to regulate the inclination of the center roller. A restriction member can also be provided.

In the cabinet according to the present invention, the upper guide rail is provided with a lower rail and an upper rail that extend along the opening/closing direction of the opening/closing door and are spaced apart in the vertical direction, and the opening/closing door includes: A traveling roller that contacts the lower rail and rolls with a gap from the upper rail, and a traveling roller that is urged upward to contact the upper rail and roll with a gap from the lower rail. Since the center roller is provided, even if there is a manufacturing error or an installation error, a clearance or rattling that causes the running member to tilt is not generated.

In addition, even if a clockwise rotational moment is applied to the traveling member in a direction in which it tends to tilt rearward, the rotational moment can be reduced by the upward biasing force of the center roller, so the traveling member is less likely to tilt. Become.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the whole food display shelf which has an inclination door which concerns on embodiment of this invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1; FIG. 3 is a cross-sectional view showing a state in which an inclined door is removed from the state shown in FIG. 2; FIG. 2 is an enlarged view of the Z portion of FIG. 1, omitting the decorative cover. It is sectional drawing which expands and shows the part of an upper guide rail, Comprising: The decorative cover and closer are abbreviate|omitted. It is the perspective view which looked at the closer alone from the diagonally lower side. FIG. 3 is an enlarged view of part X in FIG. 2; FIG. 4 is a front view showing a state in which the hook attachment member is attached to the traveling member; FIG. 9 is a plan view of FIG. 8; It is the perspective view which looked at FIG. 8 from the front diagonal upper side. It is the perspective view which looked at FIG. 8 from the back diagonal upper side. 11 is an exploded perspective view of the center roller unit from the state of FIG. 10; FIG. FIG. 13 is an exploded perspective view showing the center roller unit of FIG. 12 alone; FIG. 14 is an exploded perspective view of FIG. 13 as seen from the rear; It is a front view for explaining a movement of a center roller, Comprising: (A) shows a normal state, (B) shows the state moved downward.

A food display shelf 1 (cabinet) according to an embodiment of the present invention will be described in detail below with reference to the drawings. In the present embodiment, as an example in which the opening/closing door is offset to the front side of the upper guide rail 10, a cabinet having an inclined door 3 attached so as to cover the inclined opening will be described.

Here, the "cabinet in which the opening and closing door is attached at an offset position" as used in this specification does not mean that the opening and closing door is suspended (supported) directly below the upper guide rail like a general sliding door. In contrast, it refers to a type of cabinet in which the opening and closing door is suspended in front of the upper guide rail. More specifically, the cabinet is of a type in which the center of gravity of the opening/closing door is located on the front side of the support point of the upper guide rail, and an oblique force acts on the support point of the upper guide rail in a suspended state.

FIG. 1 is a perspective view showing the entire food display shelf 1 having inclined doors 3 (3a, 3b). 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a cross-sectional view showing a state in which the front inclined door 3a is removed from the state shown in FIG. 4 is an enlarged view of the Z section of FIG. 1, FIG. 5 is a cross-sectional view showing an enlarged portion of the upper guide rail 10, and FIG. is. Moreover, FIG. 7 is an enlarged view of the X section of FIG.

Note that the front-back, left-right, and up-down directions used in this embodiment refer to the directions shown in FIG. Further, the opening/closing direction of the opening/closing door refers to the horizontal direction.

As shown in FIGS. 1 to 3, the food display shelf 1 is provided with a slanted opening on the front side of the food display shelf body 2, and two slanted doors 3 (see FIG. 3) cover the opening. 1, a front door 3a located on the right side and a rear door 3b) located on the left side are attached. More specifically, the front portion of the food display shelf main body 2 is formed so as to be slanted rearward from the lower side to the upper side, and this slanted surface is open. Similarly, the inclined door 3 is attached to the food display shelf main body 2 in an inclined state so that the upper side of the inclined door 3 is located on the rear side of the lower side.

These front side door 3a and rear side door 3b are so-called sliding door type doors, and can be opened and closed by moving them in the horizontal direction. The inclined door 3 is made of a transparent material such as glass and formed into a flat plate so that the inside of the food display shelf body 2 can be seen even when the door is closed.

Shelves 4a and 4b for displaying products are provided inside the food display shelf body 2. As shown in FIG. The lower shelf 4a extends further to the near side than the upper shelf 4b, ensuring a large shelf area for the lower shelf 4a. This makes it easy to take in and out the products displayed on the lower shelf 4a without being obstructed by the upper shelf 4b.

1 and 4, an upper guide rail 10 is attached to the front side of the ceiling portion 5 of the food display shelf body 2 for supporting the upper portion of the inclined door 3. . The upper guide rail 10 is provided over the entire length of the food display shelf 1 in the left-right direction, and the inclined door 3 moves in the left-right direction along the upper guide rail 10 .

As shown in FIG. 5, the upper guide rail 10 includes a guide rail main body 11 having a substantially U-shaped cross section with an open bottom, a mounting projection 11a extending rearward from the guide rail main body 11, and the guide rail. The decorative cover fixing protrusion 11b extends from the main body 11 toward the front side.

The guide rail main body 11 is provided with a lower rail 12 and an upper rail 13 extending substantially horizontally toward the inside of the substantially U-shaped cross section.
The lower rail 12 extends in the front-rear direction from the lower ends of the rear side portion 11c and the front side portion 11d of the guide rail main body 11 toward the inside of the guide rail main body 11, and the tip portions thereof are separated from each other. A gap is provided.

The upper rail 13 covers the upper side of the lower rail 12 and extends inward in the front-rear direction from approximately the center of each of the rear side surface portion 11c and the front side surface portion 11d of the guide rail body 11 in the vertical direction. As with the lower rail 12, a gap is provided so that these tip portions are separated from each other. A traveling member 30, which will be described later in detail, is inserted into each gap between the lower rail 12 and the upper rail 13. As shown in FIG.

A running roller rolling surface 12a is formed on the upper surface of the lower rail 12 so as to be recessed downward in an arc shape. On the other hand, on the lower surface of the upper rail 13, there is formed a center roller rolling surface 13a that is recessed upward in an arc shape.

On the upper side of the upper rail 13, a closer mounting portion 14 defined by the upper surface of the upper rail 13 in a substantially rectangular shape is provided. A closer 60 , which will be described later in detail, is attached to the closer attachment portion 14 at a predetermined position in the left-right direction. 5, the closer 60 is omitted.

The lower surface of the mounting protrusion 11a overlaps the upper surface of the ceiling portion 5 of the food display shelf body 2, and the upper guide rail 10 is fixed to the ceiling portion 5 by fastening a screw (not shown) from above. 2 and 3, the decorative cover 20 is detachably attached to the mounting projection 11a and the decorative cover fixing projection 11b so as to cover the front side and the upper side of the upper guide rail 10. As shown in FIG.

A closer 60 shown in FIG. 6 is attached to the closer attachment portion 14 of the upper guide rail 10 at a predetermined position in the left-right direction. The closer 60 is formed with an elongated engaging body moving hole 62 extending from the end on the door opening side toward the door closing side on the lower side of a substantially rectangular parallelepiped main body portion 61 . At the time of closing the front door 3a, a catching protruding piece 32 of the traveling member 30, which will be described later in detail, enters into the engaging body moving elongated hole 62 (see FIG. 5), and a locking body provided in the main body 61 is engaged. 63 is engaged and captured. This latching body 63 slowly and forcefully forces the catching protruding piece 32 toward the door closing side by means of a retraction spring member (not shown) and a buffer damper (not shown) provided in the main body 61 . It works to pull into As a result, the front door 3a suspended from the traveling member 30 is forcibly moved to the completely closed position.

The above-mentioned closer 60 is the same as that used in a general sliding door device in which the opening/closing door is attached substantially vertically. Since the internal structure, mounting position, function and action of the closer 60 are known techniques, detailed description thereof will be omitted.

A lower roller 7 is provided on the lower portion of the inclined door 3 as shown in FIG. The lower roller 7 is placed obliquely on the rolling surface of a lower guide rail 8 arranged at the front end of the shelf 4a, and is positioned along the lower guide rail 8 when the front door 3a is opened and closed. can move freely in the left and right direction.

8 is a front view showing a state in which the hook attachment member 40 is attached to the traveling member 30, and FIG. 9 is a plan view of FIG. 10 is a perspective view of FIG. 8 as seen obliquely from the upper front, and FIG. 11 is a perspective view of FIG. 8 as seen from the oblique upper rear. Furthermore, FIG. 12 is a perspective view of the center roller unit 70 disassembled from the state of FIG.

Inside the upper guide rail 10, as shown in FIG. 5, the running member 30 is inserted from the end of the upper guide rail 10. As shown in FIG. The running member 30 located on the front side is for hanging the front door 3a of the inclined door 3 downward, and the running member 30 located on the rear side hangs the rear side door 3b of the inclined door 3. It is for hanging on the lower side. These running members 30 move freely in the left-right direction along the upper guide rail 10 by rolling on the rolling surfaces of the lower rail 12 and the upper rail 13 with a running roller 34 and a center roller 35, which will be described later in detail. It is possible.

The running member 30 is configured symmetrically with respect to the center line CL of the guide rail main body 11 of the upper guide rail 10, as shown in FIG. Therefore, in the following description, the front running member 30 will be described, and the description of the rear running member 30 will be omitted. Also, since the functions of the parts and members used in the traveling member 30 are all the same, they will be described with the same reference numerals.

As shown in FIGS. 8 to 12, the traveling member 30 includes a body portion 31 formed by bending a sheet metal into a substantially L-shape. The body portion 31 includes an upright portion 31a extending vertically and Extending horizontal portion 31b.

On the left side of the upright portion 31a, there is provided a catching projecting piece 32 projecting upward from the upper end portion thereof. A cushioning member (not shown) made of rubber or the like is attached to the catching protruding piece 32 so as to cover the outer periphery thereof.

As shown in FIG. 12, a substantially rectangular notch 33 is formed by cutting downward from the upper edge of the upright portion 31a at a position slightly to the right of the central portion in the left-right direction. Two rotating shafts 34a, 34a are provided on both sides of the notch 33 in the left-right direction so as to protrude forward in the front-rear direction of the standing portion 31a. , 34a, running rollers 34, 34 are rotatably mounted.

Further, as shown in FIG. 12, a center roller unit 70, which will be described later in detail, is fitted into the notch 33 of the standing portion 31a from the upper side to the lower side.

As shown in FIG. 8, a mounting pin 36 is attached to the horizontal portion 31b of the traveling member 30 and extends downward from the lower surface thereof. ing. A hook member (not shown) having a length substantially equal to the length of the front door 3a in the left-right direction is attached to the hook attachment member 40, and the upper portions of the inclined doors 3a and 3b are hooked on the hook member. It can be easily attached and detached and attached at an arbitrary inclination angle according to the inclination of the opening of the food display shelf body 2. - 特許庁

13 is an exploded perspective view showing the center roller unit 70 of FIG. 12 alone, and FIG. 14 is a perspective view of FIG. 13 as seen from the rear.
As shown in FIGS. 13 and 14, the center roller unit 70 includes a unit body 71 molded of a resin material, a rotating shaft 35a extending in the front-rear direction, and a center roller 35 attached to the front side of the rotating shaft 35a. , and a large-diameter washer 75 attached to the rear side of the rotating shaft 35a.

A unit-side notch 72 is formed in the central portion of the unit main body 71 from the upper edge toward the lower side. A back plate portion 74 is formed on the back side of the unit main body 71 as shown in FIG. The back plate portion 74 does not block the unit side notch 72 and extends in a plate shape from the peripheral edge of the unit side notch 72 in the left-right direction and downward at a position spaced apart by the plate thickness of the standing portion 31a. ing. The back plate portion 74 forms fitting grooves 74a on the left, right and bottom sides of the unit-side notch 72 for fitting the standing portions 31a.

As shown in FIGS. 13 and 14, the unit main body 71 has an elastic holder portion 73 which is positioned inside the unit side cutout 72 and integrally formed so as to be continuous with only the right side of the unit side cutout 72 . is provided. More specifically, the elastic holder portion 73 has a columnar portion 73a having flat surfaces in the front and rear, and a part of the columnar circumference portion constricted (thickened) to the right side of the unit-side notch 72. The columnar portion 73a is configured to move vertically by the elasticity of the elastic portion 73b. Further, a shaft mounting hole 73c is formed in the center of the cylindrical portion 73a so as to penetrate in the front-rear direction.

As shown in FIGS. 13 and 14, the inner portion of the unit-side notch 72 is provided with an inner protrusion 74b that protrudes inward from the edge of the plate thickness portion of the notch. The inner protrusion 74b is formed continuously along the edge of the notch, and enhances the rigidity so that the unit main body 71 will not be damaged when a bending stress acts thereon.

The length of protrusion of the inner protrusion 74b is determined so that the inner dimension of the notch of the unit-side notch 72 including the inner protrusion 74b is smaller than the diameter of the center roller 35. As shown in FIG. That is, the center roller 35 is prevented from physically moving from the front side of the standing portion 31a to the rear side through the unit-side notch 72 . The reason for this configuration is that even if the elastic portion 73b is damaged and the center roller 35 is detached, the food display shelf main body 2 can be pushed through the unit side notch 72 from the rear side of the standing portion 31a. This is to prevent them from entering.

Further, on the front side of the unit main body 71 and below the unit-side notch 72, as shown in FIG. As shown in FIG. 5, the front-side lower protrusion 74c is arranged at a position facing the inner end surface of the lower rail 12 with a gap in the front-rear direction when the traveling member 30 is assembled in the upper guide rail 5. It is Further, the protruding length of the front side lower protrusion 74c is such that when a large force such as a weight is applied to the inclined door 3, it abuts against the inner end surface of the lower rail 12, and the upright portion 31a (particularly, the catching portion) The protruding piece 32) is adjusted so as to maintain a vertical posture.

A front upper protrusion 74d is formed on the front upper side of the unit main body 71 at a position facing the inner end surface of the upper rail 13 with a gap in the front-rear direction, similarly to the front lower protrusion 74c. The protruding length is adjusted so that when a large force is applied to the tilted door 3, the upright portion 31a abuts against the inner end face of the upper rail 13 and maintains a vertical posture.

The rotating shaft 35a is inserted through the shaft mounting hole 73c of the elastic holder portion 73 from the front side. Moreover, the center roller 35 is rotatably attached to the rotating shaft 35a from the front side of the rotating shaft 35a. Furthermore, a large-diameter washer 75 is attached to the rear side of the rotating shaft 35a.

The large-diameter washer 75 is in contact with the plane on the rear side of the cylindrical portion 73a while attached to the rotating shaft 35a. Also, the large-diameter washer 75 is formed to have a large diameter so that the peripheral edge portion of the large-diameter washer 75 contacts the rear surface portion of the inner protrusion 74b in a state of being attached to the rotating shaft 35a. This regulates the position of the center roller 35 in the front-rear direction, prevents the center roller 35 from tilting in the front-rear direction, and prevents it from moving in the front-rear direction.

When the center roller unit 70 is attached to the running member 30, the center roller 35 is arranged between the two left and right running rollers 34, 34 as shown in FIG. At this time, the position of the center roller 35 in the height direction is arranged at a position higher than the running rollers 34, 34 by the dimension L1.

Further, as shown in FIG. 9, the position of the center roller 35 in the front-rear direction is the same as that of the running rollers 34, 34, and the three rollers 34, 34, 35 are arranged substantially linearly.

These running rollers 34, 34 and the center roller 35 have the same diameter, and their outer peripheral shape is formed in an arcuate shape with a swollen central portion, as shown in FIGS. On the other hand, the shape of the running roller rolling surface 12a and the center roller rolling surface 13a of the upper guide rail 10 is also formed according to the circular arc shape of these rollers 34 and 35 .

Although the running rollers 34, 34 and the center roller 35 are the same, they have different functions, and are given different reference numerals.

The diameters of the running roller 34 and the center roller 35 are slightly smaller than the distance in the height direction between the running roller rolling surface 12a and the center roller rolling surface 13a. It is preferable to set the gap between the lower rail 12 and upper rail 13 and the traveling roller 34 and center roller 35 to be as small as possible.

Next, the operation and action of the food display shelf 1 having the tilted door according to the embodiment of the present invention will be described in detail.
15A and 15B are front views for explaining the vertical movement of the center roller 35. FIG. 15A shows the normal state, and FIG. 15B shows the downward movement state. Since the front side door 3a and the rear side door 3b have the same operation and action, the following description will be made with respect to the front side door 3a.

As shown in FIG. 15A, in the normal state, the height position of the center roller 35 is higher than the position of the running roller 34 by the dimension L1. In this state, the height dimension from the lowest point of the running roller 34 to the highest point of the center roller 35 is greater than the height dimension from the running roller rolling surface 12a to the center roller rolling surface 13a.

On the other hand, when the running member 30 is assembled in the upper guide rail 10, the center roller 35 is held downward by the center roller rolling surface 13a, as shown in FIG. 15(B). That is, the center roller 35 is in a state in which the center roller rolling surface 13 a is urged upward by the elasticity of the elastic holder portion 73 .

In this state, the running roller 34 is always in contact with the running roller rolling surface 12a, and the center roller 35 is always in contact with the center roller rolling surface 13a. Therefore, even if there is a manufacturing error or an installation error, the running member 30 does not tilt or rattle.

As shown in FIGS. 1 to 3, when the front door 3a is attached in an inclined state, the weight of the front door 3a pulls the traveling member 30 diagonally forward and downward along the inclination of the front door 3a. works. As a result, a clockwise rotational moment acts on the running member 30 in the direction in which it tends to fall rearward.

Even if such a rotational moment acts, the upward biasing force of the center roller 35 can reduce the rotational moment, so that the traveling member 30 is less likely to tilt.

Further, due to the biasing force described above, the running roller 34 is maintained in a state of not contacting the center roller rolling surface 13a with a small gap, and the center roller 35 is kept with a small gap from the running roller rolling surface 12a. are kept out of contact with each other. That is, since the rollers 34 and 35 can be run with only a small gap, even if the above-described rotational moment acts, the running member 30 is tilted only by this small gap.
Further, as shown in FIG. 5, the running roller 34 and the center roller 35 are biased so as to fit into the arc-shaped concave portions of the running roller rolling surface 12a and the center roller rolling surface 13a. For traveling, the vibration of the upper guide rail 10 and the traveling member 30 in the front-rear direction during traveling is suppressed.

According to the food display shelf 1 having inclined doors according to the embodiment of the present invention, the upper guide rail 10 has the lower rails 12 extending along the opening/closing direction of the inclined door 3 and spaced apart in the vertical direction. The inclined door 3 is provided with a running roller 34 that contacts the lower rail 12 and rolls with a gap from the upper rail 13, and the upper rail 13 by being urged upward. Since the center roller 35 is provided that contacts with the lower rail 12 and rolls with a gap therebetween, the running roller 34 is always in contact with the running roller rolling surface 12a, and the center roller 35 is always center roller rolling. Contact with the moving surface 13a. Therefore, even if there is a manufacturing error or an installation error, the running member 30 does not tilt or rattle. Further, the upward biasing force of the center roller 35 makes it difficult for the traveling member 30 to tilt.

Further, on the tilted door 3 side, a running member 30 is provided to hang the tilted door 3 in an offset state. Since the roller 35 is attached and the center roller unit 70 urges the center roller 35 upward by the elasticity of the unit main body 71, the main body 31 of the traveling member 30 and the center roller unit 70 are separate members. With this configuration, the center roller unit 70 can be easily attached and detached from the traveling member 30 . Further, an upward biasing force can be applied to the center roller 35 with a simple structure without using an elastic member such as a spring.

Further, the unit main body 71 is provided with a unit-side notch 72 and an elastic holder portion 73 projecting from the end surface of the unit-side notch 72 toward the inside of the unit-side notch 72 . Since the roller 35 is attached, the elastic holder portion 73 can be compactly provided inside the unit-side notch 72 . Therefore, the outer shape of the traveling member 30 can be configured with the same size as the conventional one.

Further, the unit main body 71 is provided with an inner protrusion 74b that faces the lower rail 12 with a gap in a state where the traveling member 30 is assembled to the upper guide rail 10. is applied, the inner protrusion 74b abuts against the lower rail 12 and prevents the running member 30 from tilting from its upright posture.

Furthermore, the unit-side notch 72 is provided with an inner protrusion 74b that protrudes toward the inside of the unit-side notch 72, and the rotating shaft 35a of the center roller 35 contacts the inner protrusion 74b to rotate the center roller. Since the large-diameter washer 75 is provided to restrict the inclination of the center roller 35, it is possible to prevent the center roller 35 from inclining in the front-rear direction. In addition, since the large-diameter washer 75 receives the force acting on the elastic holder portion 73 in the front-rear direction, it is possible to prevent the elastic portion 73b from being damaged by a large force.

Although the cabinet having the inclined door according to the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications and changes can be made based on the technical idea of the present invention. It is possible.

For example, in the present embodiment, as an example of a cabinet in which an opening/closing door is attached at a position offset to the front side of the upper guide rail 10, a cabinet 1 having an inclined door 3 attached so as to cover an inclined opening is provided. has been described, but is not limited to this. For example, even in a cabinet having an opening/closing door formed in a substantially L shape, the same problem occurs if the opening/closing door is attached at a position offset from the upper guide rail. Therefore, by adopting the structure described in this embodiment, the closer 60 can be smoothly operated in the same manner as in this embodiment.

Moreover, in the present embodiment, two traveling rollers 34 and one center roller 35 are provided, but the number of rollers is not limited to this. For example, depending on the weight and size of the front door 3a, the number of running rollers 34 and center rollers 35 may be increased or decreased.

Further, in the present embodiment, the center roller 35 is arranged between the two running rollers 34, but other arrangements may be used. For example, the center roller 35 may be arranged on the outer side of the running roller 34 in the left-right direction. Also, two (or more than two) center rollers 35 may be arranged between the two running rollers 34 .

Furthermore, in the present embodiment, the center roller 35 is biased against the center roller rolling surface 13a so that the center roller 35 rotates while constantly contacting the center roller rolling surface 13a. It may be composed of members. For example, instead of the center roller 35, a block-shaped low-friction sliding member may be used, and this sliding member may slide while being biased against the center roller rolling surface 13a. In this case, the shape of the upper end portion of the sliding member is formed in accordance with the arc-shaped shape of the center roller rolling surface 13a, and by fitting and sliding the upper guide rail 10 and the traveling member 30, the traveling member 30 can move. It is possible to suppress the swing in the front and back direction of time.

On the other hand, in the present embodiment, the food display shelf 1 is explained as an example of a cabinet, but if it is used with the door attached at an offset position, it can be used as a document shelf, a storage shelf, or the like. can be used for

1 Food display shelf (cabinet)
2 Food display shelf body (cabinet body)
3 Tilted door (opening/closing door)
3a Front door 3b Rear door 4a, 4b Shelf 5 Ceiling board 6 Door mounting member 6a Engagement part 7 Lower roller 8 Lower guide rail 10 Top guide rail 11 Guide rail body 11a Mounting protrusion 11b Decorative cover fixing protrusion Part 12 Lower rail 12a Running roller rolling surface 13a Center roller rolling surface 13 Upper rail 14 Closer mounting part 20 Decorative cover 30 Running member 31 Body part 31a Standing part 31b Horizontal part 32 Capturing projecting piece 34 Running roller 34a Rotating shaft 35 Center roller 35a Rotating shaft 36 Mounting pin 40 Hook mounting member 60 Closer 61 Main body 62 Engagement member moving elongated hole 63 Locking member 70 Center roller unit 71 Unit main body 72 Unit side notch (notch)
73 Elastic holder portion 73a Cylindrical portion 73b Elastic portion 73c Shaft attachment hole 74 Back plate portion 74a Fitting groove 74b Inner protrusion 74c Front lower protrusion (protrusion)
74d front upper protrusion (protrusion)
75 large diameter washer (restriction member)
L1 Vertical movement amount CL Center line

Claims (5)

The opening/closing door has an upper guide rail that supports the upper portion of the opening/closing door, and the opening/closing door is mounted at a position offset to the front side of the upper guide rail, the opening/closing door is a sliding door, and when the opening/closing door is closed, A cabinet equipped with a closer for forcibly moving the opening/closing door to a closed position,
The upper guide rail is provided with a lower rail and an upper rail that extend along the opening/closing direction of the opening/closing door and are separated from each other in the vertical direction,
The open/close door includes a traveling roller that contacts the lower rail and rolls with a gap from the upper rail, and a traveling roller that is urged upward to contact the upper rail and has a gap from the lower rail. a center roller that rolls with a gap between
A cabinet characterized in that it is provided with A traveling member is provided on the side of the opening/closing door, and is hung while the opening/closing door is offset,
The running member is
the running roller;
a center roller unit in which the center roller is attached to a unit body having elasticity, and the center roller is urged upward by the elasticity of the unit body;
2. A cabinet as claimed in claim 1, comprising: The unit body is provided with a notch and an elastic holder portion protruding from an end surface of the notch toward the inner side of the notch, and the center roller is attached to the elastic holder portion. Cabinet according to claim 2. 2. The unit body is provided with a protrusion that faces the lower rail or the upper rail with a gap therebetween when the traveling member is assembled to the upper guide rail. or the cabinet according to claim 3 The notch is provided with an inner projection projecting toward the inside of the notch, and a regulating member that contacts the inner projection and regulates the tilt of the center roller is provided on the rotating shaft of the center roller. 5. Cabinet according to claim 3 or 4, characterized in that it is provided with:

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