JPH09276092A - Door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid damages of a door itself and door stopper by covering the door stopper formed on a rail of a sliding door type door with an elastic material. SOLUTION: The left side door stopper 71 is inserted engagedly in the right side groove 78 and the right side door stopper 71 is inserted engagedly in the left side groove 77. Elastic materials 74 are mounted respectively to the door stoppers 71. Also, the elastic material 76 is formed somewhat inside the right and left ends with grooves 81, 82. The left side door stopper 72 is inserted engagedly in the left side groove 81 and the right side door stopper 72 is inserted engagedly in the right side groove 82 to mount the elastic material 76 to both door stoppers 72. When a resin door 67 to the like is slide and opened, the respective resin door or the like abuts against the elastic material 74 or elastic material 76. Thus, impact in the collision of the resin door 67 or the like is mitigated, so that damages of the resin door 67 itself or the like and door stoppers 71, 72 are effectively avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device which opens and closes an opening of a low temperature showcase or the like with a sliding door type door.

[0002]

2. Description of the Related Art Conventionally, a low temperature showcase of this type is provided with a storage room surrounded by a transparent wall, as disclosed in, for example, Japanese Unexamined Patent Publication No. 7-275093 (A47F3 / 04).
The opening formed in the front and rear surfaces of the storage chamber is closed by a plurality of sliding door-type transparent doors made of a glass plate, an acrylic resin plate or the like, which can be moved left and right.

These doors are slidably supported by two front and rear rail surfaces formed above and below the opening, but in order to define the open or closed position of the door, the center and left and right ends of the front rail surface. The door stoppers are attached so as to project near the center of the rear rail surface of the rail and the rear side, and when the doors are slid, the door stoppers are brought into contact with each door stopper at a predetermined open position or closed position. Was there.

[0004]

However, in the conventional structure, since the door is in direct contact with the door stopper, when the door is moved vigorously by the customer,
There is a problem that the door stopper may be broken or the door itself may be damaged by the impact due to the collision with the door stopper.

The present invention has been made in order to solve the above-mentioned conventional technical problems, and an object thereof is to provide a door device capable of effectively avoiding the occurrence of damage to the door and the door stopper. .

[0006]

A door device of the present invention is supported by a rail provided at an opening edge so as to be movable in the left-right direction,
A sliding door door that opens and closes the opening is provided, and a door stopper that is provided on the rail and comes into contact with the door. The door stopper is covered with an elastic material. According to the present invention, since the door stopper is covered with the elastic material, when the door is moved, the door comes into contact with the elastic material. As a result, the impact of the collision is mitigated, so that damage to the door itself and the door stopper can be effectively avoided.

According to the second aspect of the present invention, the rail is composed of two inner and outer rail surfaces, and the elastic member has a tapered shape, and is interposed between the back side of the outer rail surface and the inner rail surface. According to the invention of claim 2, in addition to the above, the rail is composed of two inner and outer rail surfaces, and the elastic member is interposed between the back side of the outer rail surface and the inner rail surface. The distance between the rail surfaces can be maintained. Therefore, it becomes possible to prevent the slidability of the door from being deteriorated due to the deformation of the rail surface and the like, so that the door can be smoothly opened and closed.

According to the third aspect of the present invention, the elastic member has a tapered shape and has a groove opened to the rail surface side and the tip end direction, and the door stopper is engaged in this groove. According to the invention of claim 3, in addition to the above, the elastic member has a tapered shape, and has a groove opened to the rail surface side and the tip direction, and the door stopper is engaged in this groove. Therefore, the elastic material can be extremely easily engaged and attached to the door stopper, and the assembling and maintenance workability can be improved.

According to a fourth aspect of the present invention, in the first aspect, the surface of the elastic material opposite to the surface with which the door abuts is brought into contact with the wall surface located at the opening edge. According to the invention of claim 4, since the surface of the elastic material opposite to the surface with which the door abuts is brought into contact with the wall surface located at the opening edge, the elastic material is removed from the door stopper even if the door abuts. It becomes difficult and the durability can be improved.

According to a fifth aspect of the present invention, in the first aspect, the elastic material covers a plurality of adjacent door stoppers.
According to the invention of claim 5, since the elastic material covers a plurality of adjacent door stoppers, even if the contact area between the elastic material and the rail is enlarged and the door abuts, the elastic material is removed from the door stopper. It becomes difficult to come off, and the durability can be improved.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partially cutaway perspective view of a low temperature showcase 1 to which the present invention is applied (elastic materials 74 and 76 are deleted),
2 is a vertical side view of the low temperature showcase 1, FIG. 3 is a vertical side view of the upper part of the low temperature showcase 1, FIG. 4 is a partially cutaway enlarged perspective view of the upper left portion of the opening 64 of the low temperature showcase 1, and FIG. 4 is an exploded perspective view of FIG. 4, and FIG. 6 is an opening 64 of the low temperature showcase 1.
7 is an enlarged vertical side view of the upper right part, FIG. 7 is a partially cutaway perspective view of the upper center of the opening 64 of the low temperature showcase 1, and FIG. 8 is an enlarged vertical side view of the upper center of the opening 64 of the low temperature showcase 1. ing.

In each of the drawings, a low temperature showcase 1 is used for displaying and storing ice cream and the like in a convenience store or the like, and is composed of a horizontally elongated rectangular heat insulating box 2 opened upward. . This heat-insulating box body 2 includes a metal outer box 3, a metal inner box 6 installed in the outer box 3 with a space, and both boxes 3, 6
A breaker 4 made of resin for connecting the upper ends of the two, and a heat insulating material 7 such as foamed polyurethane filled between the boxes 3 and 6 and the breaker 4 by an in-situ foaming method.

Duct plates 8 and 9 are mounted inside the front and rear surfaces of the inner box 6 with a space therebetween, and the upper ends of the duct plates 8 and 9 are bent inwardly. Furthermore,
A bottom plate 11 is removably installed between the lower ends of the duct plates 8 and 9, whereby a series of ducts 12 standing up and down from the bottom surface is formed inside the inner box 6, and the duct plates 8 and 9 are also provided. A storage chamber 22 is defined inside the bottom plate 11. On the other hand, the bottom wall 13 of the heat insulating box 2 has a stepped shape having a lower portion 13A in the front part and a higher portion 13B in the rear part, and the bottom plate 11 is located above the higher portion 13B.

A drain pan 14 is provided on the upper surface of the lower portion 13A, and a drain hole 16 communicating with the outside of the heat insulating box 2 is formed at the lowest position of the drain pan 14. The duct 12 is provided on the drain pan 14.
A horizontally long plate fin type cooler 17 is disposed inside the fan case 18 provided in front of the cooler 17.
A blower 19 composed of a suction-type propeller fan is attached inside.

Higher portion 13B on the rear side of the cooler 17
The stepped portion of the lower portion 13A is formed as an inclined surface 13C so that the upper portion thereof is separated from the cooler 17. The upper end of the duct plate 9 is a discharge port 9A, the upper end of the duct plate 8 is a suction port 8A, and wind direction plates 21, 21 which are curved inward are attached to the discharge port 9A at predetermined intervals. On the other hand, kick plates 26, 26 having a large number of through holes 24, ... Are attached to the front and rear of the lower end of the heat insulating box 2, and are located between the kick plates 26, 26 below the heat insulating box 2. A machine room 27 is configured. Then, in the machine room 27 located below the high-order portion 13B, a compressor (not shown) that constitutes a well-known refrigeration cycle together with the cooler 17, a condenser 29, a condenser blower 31, and an electrical equipment box (see FIG. (Not shown) and the like, and the rear surface of the machine room 27 is closed by a plurality of panels 36 to 38 so as to be openable and closable. Further, a plurality of slits 39 ... There is.

When the compressor and the blowers 19 and 31 are operated, the cool air cooled by the cooler 17 is inclined to the inclined surface 13C.
Is blown backward from inside the duct 12 and is discharged from the discharge port 9A at the upper end of the duct plate 9 toward the upper part of the storage chamber 22. The cool air that has circulated in the storage chamber 22 is sucked into the duct 12 through the suction port 8A at the upper end of the duct plate 8, and the blower 19
A circulation (represented by a broken line arrow in FIG. 2) is performed to return to the. As a result, the inside of the storage chamber 22 is cooled to a predetermined freezing temperature such as -20 ° C.

On the other hand, side plates 41, 41 made of a thick plate of transparent acrylic resin are erected on both sides of the opening of the heat insulating box 2. The side plates 41, 41 have a substantially mountain shape that is inclined such that the upper portions of the front and rear sides 41A, 41B are close to each other, and a stainless steel top plate 42 is also provided between the upper end portions thereof. It is screwed from the side via 43.

The top plate 42 is a side plate 41, as shown in FIG.
41 has a mountain-shaped cross-section that conforms to the shape of the upper portion, and on its lower surface, a stainless steel reflector plate 46 is also provided via front and rear stainless steel upper support plates 44, 44 as outer rail surfaces of the upper rail. It is installed. The upper support plates 44, 44 are spaced from the lower surface of the top plate 42,
The tip of the top plate 42 inclines downward substantially along the inclination of the front and rear sides 41A, 41B of the side plate 41, and the lower end of the top plate 42 faces the upper support plate 44 with a gap.

As shown in FIG. 3, the front and rear side surfaces (to be the inner rail surface of the upper rail) 46A, 46A of the reflection plate 46 are inclined downward toward the outside with a space below and inside the upper support plates 44, 44. The lower surface thereof is bent like a crank, and the recess 47 opened downward and the recess 4 opened upward.
8 are arranged side by side. A horizontally long fluorescent lamp 51 inserted into a jacket 49 is housed in the recess 47 opened downward, and the fluorescent lamp 51 is turned on in the recess 48 opened upward. Ballast 5
2 are provided. Also, both upper support plates 44, 4
A plurality of through holes (long holes) 53 ... Are bored in the upper end base portion of 4, ie, the mounting portion to the top plate 42, whereby the inside of the recess 48 in which the ballast 52 is housed is formed. The upper support plates 44, 44 communicate with the upper surface.

On the other hand, inside the front and rear opening edges of the heat insulating box 2, upper wind direction plates 56, 56 located above the suction port 8A and the discharge port 9A are attached to the inner surface of the breaker 4, respectively. On the upper side of the plate 56, upper plate 57 made of stainless steel is combined with a space therebetween.
An upper heat insulating material 58 is provided between the upper wind direction plate 56 and the upper surface plate 57.
A dew condensation prevention heater 59 is provided between the upper heat insulating material 58 and the upper surface plate 57.

The outsides (front and rear directions) of the top plates 57, 57 are inclined and descended, and extend to the center of the top surface of the breaker 4 while being bent into a substantially Z shape. Further, rail plates 61, 61 are inserted below the upper surface plates 57, 57, respectively. The rail plates 61, 61 are bent so that they rise from the tip of the upper surface plate 57 toward the outside while rising, and the outer ends descend again. The outer box 3 is attached to the outer ends of the rail plates 61, 61.
A decorative plate 62 is attached to cover.

Outside portions of the upper plates 57, 57 (substantially Z
A stainless steel auxiliary rail 63 as a lower rail is detachably mounted and attached on the rail plate 61 and the rail plate 61. The auxiliary rail 63 is formed into a substantially W shape by welding two stainless steel plates,
As a result, the inner rail surface 63A and the outer rail surface 63
B is formed.

Then, the inner and outer rail surfaces 63A, 63
B faces the side surfaces (upper inner rail surface) 46A, 46A of the reflection plate 46 and the upper support plates (upper outer rail surface) 44, 44 directions, respectively. The storage chamber 22 of the low temperature showcase 1 is opened in the front-rear direction between the rail surfaces 63A and 63B and the top plate 42 (opening 6
4, 64).

On the inner and outer rail surfaces 63A and 63B of the auxiliary rail 63, a plurality of sliding door type resin doors 66 and 66 made of a transparent acrylic resin plate (or PET resin plate) having a relatively thin thickness, 67 and 67 are slidably mounted and supported. In this case, in the embodiment, two resin doors 66, ..., 67 ... are supported inside and outside, two in front and back, and an inner side supported on both sides of the inner rail surface 63A in a closed state. The upper part of the resin doors 67, 67 of
As shown in FIG. 3, the side surface (upper inner rail surface) 46A of the reflection plate 46 is slidably supported.

The upper portions of the outer resin doors 66, 66, which are supported by the central portion of the outer rail surface 63B in the closed state and abut against each other, slide on the upper support plate (upper outer rail surface) 44. It is movably supported. Incidentally, 68
Are grips provided on the abutting sides of the resin doors 66, 66 and the outer surfaces of the resin doors 67, 67, as will be described later.

Here, a door stopper 71 is provided at the central portion in the left-right direction of the upper support plate 44 which is the outer rail surface of the upper portion.
Is attached, and the door stopper 71 is approximately 50 mm to the left and right.
Door stoppers 72, 72 are attached to the side surface (upper inner rail) 46A of the reflection plate 46 at a position (a range where the handle 68 does not contact the resin door 66 when the resin door 67 is opened). Also, approximately 50 m inside the side plates 41, 41
The door stopper 71 is also attached to the upper support plate 44 at the position m.
71 are attached.

Each of the door stoppers 71, ..., 72, 72 is made of a steel plate having a thickness of about 2 mm, and the rails (the upper support plate 44, the side surface 46, and the side surface 46) are vertically moved with the wide surface facing left and right.
It is welded and fixed to A). The respective door stoppers 71 and 72 project outward from the upper support plate 44 and the side surface 46A, respectively, and when the outer resin door 66 is closed, the edge upper ends of the butted sides thereof become the central door stopper 71. When the resin door 66 is opened while being abutted,
The upper portion of the resin door 67 contacts the left and right door stoppers 71, 71, or the upper portion of the resin door 67 contacts the door stoppers 72, 72 when the inner resin door 67 is opened.

Elastic members 74 made of an elastic material such as rubber are attached to the left and right door stoppers 71, 71, respectively, and an elastic material 76 also made of an elastic material such as rubber is attached to the door stoppers 72, 72. Is attached. The elastic member 74 has a rectangular shape as a whole and is formed in a tapered trapezoidal cross section. The vertical dimension of the thick base portion substantially matches the distance between the lower end portion of the top plate 42 and the upper support plate 44. Further, the elastic member 74 has a space left and right inside the left and right end portions, and
7, 78 are formed. The grooves 77 and 78 are opened to the bottom surface and the front end direction, and are set to dimensions that can be engaged with the door stopper 71. With the above configuration, the elastic member 74 has a bilaterally symmetrical shape.

Then, the door stopper 71 on the left side when facing is inserted into and engaged with the groove 78 on the right side (shown by a broken line arrow in FIG. 5), or the door stopper 71 on the right side facing.
Is inserted and engaged in the groove 77 on the left side (FIG. 6),
The elastic material 74 is attached to each door stopper 71, 71. At this time, the bottom surfaces of the elastic members 74, 74 are in close contact with the surface of the upper support plate 44, and the left side surface of the left elastic member 74 and the right side surface of the right elastic member 74 are side plates 41, 41.
It abuts against the wall surface (Fig. 7). Further, the elastic member 74 substantially intervenes between the back side of the lower end portion of the top plate 42 and the surface of the upper support plate 44 to maintain a mutual distance. At this time,
An adhesive may be injected into the groove 77 or 78 and fixed.
Even in that case, since the grooves 77 and 78 are not opened downward, leakage of the adhesive is prevented.

On the other hand, the elastic material 76 has a horizontally long rectangular shape as a whole and is also formed in a tapered trapezoidal cross section. The vertical dimension of the thick base portion substantially matches the distance between the upper support plate 44 and the side surface 46A. In addition, the groove 8 is formed in the elastic member 76 slightly inside the left and right ends.
1, 82 are formed. Each of the grooves 81 and 82 is opened to the bottom surface and the tip end direction, and is set to a size that allows the door stopper 72 to be engaged. With the above configuration, the elastic member 76 is bilaterally symmetrical.

Then, the left door stopper 72 is inserted and engaged in the left groove 81, and the right door stopper 72 is inserted and engaged in the right groove 82 (FIG. 7).
Is attached across both door stoppers 72, 72. At this time, the bottom surface of the elastic material 76 comes into close contact with the surface of the side surface 46A (FIG. 8). Further, the elastic material 76 substantially intervenes between the back surface of the upper support plate 44 and the front surface of the side surface 46A, and maintains a mutual distance. At this time, similarly, the groove 81 or 8
An adhesive may be injected into 2 and fixed. Even in that case,
Since the grooves 81 and 82 are not opened downward, the leakage of the adhesive is prevented.

When the resin doors 66 or 67 are slid and opened in the above-described structure, the resin doors 66 and 67 are made of the elastic material 7.
4 or contact the elastic material 76. As a result, the impact at the time of collision of the resin doors 66 and 67 is mitigated, so that damage to the resin doors 66 and 67 themselves and the door stoppers 71 and 72 is effectively prevented. In particular, the elastic members 74 and 76 are the top plate 42.
Between the upper support plate 44 and the side surface 4, or between the upper support plate 44 and the side surface 4.
Since they are interposed between 6A, the distance between them can be maintained by the elastic members 74 and 76. Therefore, the upper support plate 4
It is possible to prevent deterioration of the slidability of the resin doors 66 and 67 due to deformation of the resin 4 and the side surface 46A.
The smooth opening and closing of 6, 67 can be realized.

Since each elastic member 74, 76 has a tapered shape and the grooves 77, 78 or 81, 82 are open to the bottom surface and the front end direction, the elastic members 74, 76 are attached to the door stoppers 71, 72. Since it is possible to insert and engage with each other very easily from below in each interval, it is possible to improve maintenance workability such as assembly and replacement.

Further, since the elastic member 74 is in contact with the side plate 41, even if the resin door 66 contacts, the elastic member 74 is less likely to come off the door stopper 71, and the durability is improved. Also,
Since the elastic material 76 covers the door stoppers 72, 72, even if the contact area between the elastic material 76 and the side surface 46A is enlarged and the resin door 67 abuts, the elastic material 76 is less likely to come off the door stoppers 72, 72. This also makes it possible to improve durability.

[0035]

As described above in detail, according to the present invention, since the door stopper is covered with the elastic material, when the door is moved, the door comes into contact with the elastic material. As a result, the impact of the collision is mitigated, so that damage to the door itself and the door stopper can be effectively avoided.

According to the invention of claim 2, in addition to the above, the rail is composed of two inner and outer rail surfaces, and the elastic material is interposed between the back side of the outer rail surface and the inner rail surface. The material makes it possible to maintain the distance between the inner and outer rail surfaces. Therefore, it becomes possible to prevent the slidability of the door from being deteriorated due to the deformation of the rail surface and the like, so that the door can be smoothly opened and closed.

According to the third aspect of the invention, in addition to the above, the elastic material has a tapered shape and has a groove open to the rail surface side and the tip direction, and the door stopper is engaged in this groove. As a result, the elastic material can be extremely easily engaged and attached to the door stopper, and the assembling and maintenance workability can be improved.

According to the invention of claim 4, the surface of the elastic material opposite to the surface with which the door abuts is brought into contact with the wall surface located at the opening edge. It becomes difficult for the stopper to come off, and the durability can be improved. According to the invention of claim 5, since the elastic material covers a plurality of adjacent door stoppers, even if the contact area between the elastic material and the rail is enlarged and the door abuts, the elastic material is removed from the door stopper. It becomes difficult to come off, and the durability can be improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a low temperature showcase to which the present invention is applied.

FIG. 2 is a vertical sectional side view of the low-temperature showcase.

FIG. 3 is a vertical sectional side view of an upper portion of the low temperature showcase.

FIG. 4 is a partially cutaway enlarged perspective view of the upper left portion of the opening of the low temperature showcase.

FIG. 5 is an exploded perspective view of FIG.

FIG. 6 is an enlarged vertical sectional side view of the upper right part of the opening of the low temperature showcase.

FIG. 7 is a partially cutaway perspective view of an upper center portion of the opening of the low temperature showcase.

FIG. 8 is an enlarged vertical cross-sectional side view of the upper center portion of the opening of the low temperature showcase.

[Explanation of symbols]

 1 Low Temperature Showcase 2 Insulation Box 22 Storage Room 44 Upper Support Plate (Upper Outer Rail Surface) 46A Side Side (Upper Inner Rail Surface) 64 Opening 66, 67 Resin Door 71, 72 Door Stopper 74, 76 Elastic Material 77, 78, 81, 82 groove

Claims (5)

[Claims] 1. A sliding door door supported by a rail provided at an opening edge so as to be movable in the left-right direction and closing the opening so that the opening can be opened and closed, and a door stopper provided on the rail, with which the door abuts. A door device in which the door stopper is covered with an elastic material. 2. The door device according to claim 1, wherein the rail is composed of two inner and outer rail surfaces, and the elastic member is interposed between the back side of the outer rail surface and the inner rail surface. 3. The door device according to claim 2, wherein the elastic material has a tapered shape and has a groove opened toward the rail surface side and the tip end direction, and the door stopper is engaged in this groove. . 4. The door device according to claim 1, wherein the surface of the elastic material opposite to the surface with which the door abuts is abutted against the wall surface located at the opening edge. 5. The door device according to claim 1, wherein the elastic material covers a plurality of adjacent door stoppers.