JP3213541B2 - Door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device for opening and closing a low-temperature showcase or the like with a sliding door so as to be openable and closable.

[0002]

2. Description of the Related Art Conventionally, a low-temperature showcase of this kind has a storage room surrounded by a transparent wall as shown in, for example, Japanese Patent Application Laid-Open No. 7-275093 (A47F3 / 04).
Openings formed obliquely on the front and rear surfaces of the storage chamber are closed and opened and closed by a plurality of transparent door-type transparent doors made of a glass plate, an acrylic resin plate, or the like, which are movable left and right.

[0003] These doors are slidably supported by two front and rear rail surfaces formed above and below the opening. In order to define the open or closed position of the door, the center and left and right ends of the front rail surface are defined. A door stopper protrudes and is mounted near the center of the rear rail surface, and when the door is slid, it comes into contact with each door stopper at a predetermined open position or a closed position. I was

[0004]

However, in the conventional structure, the door is directly in contact with the door stopper, so that if the door is moved by the customer vigorously,
There is a problem that the door stopper is broken or the door itself is damaged by an impact due to a collision with the door stopper.

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

[0006]

According to the present invention, there is provided a sliding door which is supported on a rail provided at an opening edge so as to be movable in the left-right direction, and which closes the opening so as to be openable and closable. The door stopper is covered with an elastic material, and the rail is formed of two inner and outer rail surfaces, and the elastic material is provided on the rear side of the outer rail surface and on the inner side. A door device interposed between rail surfaces, wherein the elastic material has a tapered shape, and has a groove opened toward the rail surface side and in the distal direction, and a door stopper is engaged in the groove. is there.

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 reduced, so that damage to the door itself and the door stopper can be effectively avoided. In addition, 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, so that the space between the inner and outer rail surfaces can be maintained by the elastic material. become able to. Therefore, it is possible to prevent the slidability of the door from being deteriorated due to deformation of the rail surface, etc., so that the door can be smoothly opened and closed. Further, the elastic member has a tapered shape, and has a groove opened on the rail surface side and the tip direction, and the door stopper is engaged in the groove. This makes it possible to engage and attach, thereby improving the workability of assembly and maintenance.

According to a second aspect of the present invention, there is provided a sliding door which is supported by a rail provided at an opening edge so as to be movable in the left-right direction and closes the opening so as to be openable and closable, and which is provided on the rail and abuts the door. A door stopper, wherein the door stopper is covered with an elastic material, and the surface of the elastic material opposite to the surface in contact with the door is brought into contact with the wall surface located at the opening edge. It is a door device characterized by the above-mentioned.

According to the second aspect of the present invention, the surface of the elastic member opposite to the surface contacting the door is brought into contact with the wall surface located at the opening edge. It is difficult for the stopper to come off the stopper, and the durability can be improved.

According to a third aspect of the present invention, there is provided a sliding door which is supported by a rail provided on an opening edge so as to be movable in the left-right direction and closes the opening so as to be openable and closable, and which is provided on the rail and abuts the door. A door device comprising a door stopper, wherein the door stopper is covered with an elastic material, and the elastic material covers a plurality of adjacent door stoppers. According to the third aspect of the present invention, since the elastic material covers the plurality of adjacent door stoppers, the contact area between the elastic material and the rail is enlarged, and even if the door comes into contact with the door, the elastic material moves from the door stopper. It is 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 members 74 and 76 are omitted).
FIG. 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 part of the opening 64 of the low-temperature showcase 1, and FIG. 6 is an exploded perspective view of FIG.
7 is a partially cutaway perspective view of the upper central portion of the opening 64 of the low-temperature showcase 1, and FIG. 8 is an enlarged vertical sectional side view of the upper central portion 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 preserving ice cream or the like in a convenience store or the like, and is constituted by a horizontally-long rectangular heat-insulating box 2 opened upward. . The heat insulation box 2 includes a metal outer box 3, a metal inner box 6 incorporated in the outer box 3 at intervals, and both boxes 3, 6.
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, 9 are attached to the inside of the front and rear surfaces of the inner box 6 at intervals, and the upper ends of the duct plates 8, 9 are bent inwardly and bent. Furthermore,
A bottom plate 11 is detachably mounted between the lower ends of the duct plates 8 and 9, thereby forming a series of ducts 12 standing up and down from the bottom inside the inner box 6. A storage room 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 at a front portion and a higher portion 13B at a rear portion, 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. A drain hole 16 is formed at the lowest position of the drain pan 14 and communicates with the outside of the heat-insulating box 2 below. On the drain pan 14, the duct 12
A horizontally long plate-fin type cooler 17 is disposed inside the fan case 18 and a fan case 18 provided on the front side of the cooler 17.
Inside, a blower 19 composed of a suction type propeller fan is mounted.

Higher portion 13B on the rear side of the cooler 17
The stepped portion of the lower portion 13A has an inclined surface 13C such that the upper portion 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 ends of the heat insulating box 2, and are located between the kick plates 26, 26 and below the heat insulating box 2. Defines a machine room 27. A compressor (not shown), which constitutes a known refrigeration cycle together with the cooler 17, a condenser 29, a blower 31 for the condenser, and an electric 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, and a plurality of slits 39 are formed in the panels 37 and 38. I have.

When the compressor and the blowers 19 and 31 are operated, the cool air cooled by the cooler 17 is cooled by the inclined surface 13C.
Then, the air is blown backward in the duct 12, and is discharged from the discharge port 9 </ b> A at the upper end of the duct plate 9 toward the upper part of the storage room 22. The cool air circulated in the storage room 22 is sucked into the duct 12 from the suction port 8A at the upper end of the duct plate 8, and the blower 19
(Indicated by the dashed arrow in FIG. 2). Thereby, the inside of the storage room 22 is cooled to a predetermined freezing temperature, for example, −20 ° C.

On the other hand, on both sides of the opening of the heat-insulating box 2, side plates 41, 41 made of a transparent acrylic resin thick plate are erected. 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.

As shown in FIG. 3, the top plate 42 has a side plate 41,
41 has a mountain-shaped cross section along the shape of the upper part, and a stainless steel reflecting plate 46 is also provided on the lower surface thereof through front and rear stainless steel upper support plates 44 as an outer rail surface of the upper rail. Installed. The upper support plates 44, 44 have an interval with the lower surface of the top plate 42,
The front end of the top plate 42 is downwardly inclined downward substantially along the inclination of the front and rear sides 41A and 41B of the side plate 41, and the lower end of the top plate 42 is opposed to the upper support plate 44 with an interval.

As shown in FIG. 3, front and rear side surfaces 46A of the reflection plate 46 (which are inner rail surfaces of the upper rail) are inclined downward and outward toward the outside at intervals below the upper support plates 44. The lower surface thereof is bent in the shape of a crank and has a concave portion 47 opened downward and a concave portion 4 opened upward.
8 are arranged side by side. A horizontally long fluorescent lamp 51 inserted into a jacket 49 is housed and arranged 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. The upper support plates 44, 4
A plurality of through-holes (elongated holes) 53... Are formed in the base portion of the upper end of 4, that is, a portion to be attached to the top plate 42, so that the inside of the recess 48 in which the stabilizer 52 is stored is formed. The upper support plates 44 are communicated 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. The upper surface plate 57 made of stainless steel is combined above the plate 56 at intervals.
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 interposed between the upper heat insulating material 58 and the upper surface plate 57.

The outer sides of the upper plates 57 (in the front-rear direction) are inclined and descend, and extend to the center of the upper surface of the breaker 4 while being bent in a substantially Z shape. Rail plates 61, 61 are inserted below the upper plates 57, respectively. The rail plates 61, 61 rise from the end of the upper plate 57 while being inclined outward, and the outer ends are bent down again. The outer ends of the rail plates 61 are provided with an outer box 3.
Decorative plate 62 is attached.

The outer portions of each of the upper plates 57, 57 (approximately Z
Auxiliary rails 63 made of stainless steel as lower rails are detachably mounted on the rails 61 and the rail plate 61. The auxiliary rail 63 is formed in a substantially W shape by welding two stainless steel plates.
Thereby, the inner rail surface 63A, the outer rail surface 63
B is formed.

The inner and outer rail surfaces 63A, 63
B faces the side surfaces (upper inner rail surface) 46A, 46A direction of the reflection plate 46 and the upper support plate (upper outer rail surface) 44, 44 direction, respectively. The storage room 22 of the low-temperature showcase 1 is opened in the front-rear direction between the rail surfaces 63A, 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 small thickness are provided. 67 and 67 are slidably mounted and supported. In this case, in the embodiment, eight resin doors 66..., 67... Are supported in the front and rear two by two inside and outside, and the inner side supported on both sides of the inner rail surface 63A in the closed state. The upper portions of the resin doors 67, 67
As shown in FIG. 3, the reflection plate 46 is slidably supported on a side surface (upper inner rail surface) 46A.

The upper portions of the outer resin doors 66, 66 which are supported in the closed state at the center of the outer rail surface 63B and abut against each other, slide on the upper support plate (upper outer rail surface) 44. It is movably supported. Incidentally, 68
Numerals are handles provided on the butted side of the resin doors 66 and the outer surfaces of the resin doors 67, 67, as described later.

Here, a door stopper 71 is provided at the center in the left-right direction of the upper support plate 44 serving as the upper outer rail surface.
Is attached, approximately 50 mm left and right of this door stopper 71.
Door stoppers 72, 72 are attached to a 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). In addition, approximately 50 m inside the side plates 41, 41
The door stopper 71 is also provided on 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 each rail (upper support plate 44, side surface 46,
A) is fixed by welding. Each of the door stoppers 71 and 72 protrudes outward from the upper support plate 44 and the side surface 46A, and when the outer resin door 66 is closed, the upper ends of the abutted edges thereof become the central door stopper 71. When the resin door 66 is opened and the resin door 66 is opened,
Are in contact with the left and right door stoppers 71, 71, or when the inner resin door 67 is opened, the upper part of the resin door 67 is in contact with the door stoppers 72, 72.

An elastic member 74 made of an elastic material such as rubber is attached to each of the left and right door stoppers 71, 71, and an elastic member 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 substantially matches the distance between the lower end of the top plate 42 and the upper support plate 44. In addition, the elastic member 74 has a space on the left and right inside the left and right ends, and the groove 7
7, 78 are formed. Each of the grooves 77 and 78 is open to the bottom surface and the tip direction, and is set to a size that allows the door stopper 71 to be engaged. With the above configuration, the elastic member 74 has a left-right symmetric shape.

Then, the door stopper 71 on the left side is inserted into and engaged with the groove 78 on the right side (indicated by a dashed arrow in FIG. 5), or the door stopper 71 on the right side.
Is inserted and engaged in the left groove 77 (FIG. 6),
An elastic member 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 the side plates 41, 41.
(Wall) (FIG. 7). In addition, 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, and maintains an interval therebetween. At this time,
An adhesive may be injected into the groove 77 or 78 and fixed.
Also in this case, since the grooves 77 and 78 do not open to the lower side, leakage of the adhesive is prevented.

On the other hand, the elastic member 76 has a horizontally long rectangular shape as a whole, and is also formed into a tapered cross-sectional trapezoidal shape. The vertical dimension of the thick base substantially matches the distance between the upper support plate 44 and the side surface 46A. Also, the elastic material 76 has a groove 8 slightly inward from the left and right ends.
1, 82 are formed. Each of the grooves 81 and 82 is open to the bottom surface and the tip direction, and is set to a size that can be engaged with the door stopper 72. With the above configuration, the elastic member 76 has a left-right symmetric shape.

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 to both door stoppers 72 and 72. At this time, the bottom surface of the elastic member 76 is in close contact with the surface of the side surface 46A (FIG. 8). In addition, the elastic material 76 substantially intervenes between the back surface of the upper support plate 44 and the surface of the side surface 46A, and keeps a space therebetween. 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 open to the lower side, leakage of the adhesive is prevented.

When the resin door 66 or 67 is slid and opened in the above configuration, each of the resin doors 66 and 67 becomes elastic material 7.
4 or contact the elastic member 76. Thereby, the impact at the time of collision between the resin doors 66 and 67 is reduced, so that the occurrence of 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
Between the upper support plate 44 and the upper support plate 44 and the side surface 4
Since the elastic members 74 and 76 are interposed between 6A, the distance between them can be maintained by the elastic members 74 and 76. Therefore, the upper support plate 4
4 or the side surface 46A can be prevented from deteriorating the slidability of the resin doors 66 and 67.
6, 67 can be smoothly opened and closed.

Each of the elastic members 74 and 76 has a tapered shape, and the grooves 77 and 78 or 81 and 82 are open to the bottom and the front end. It becomes possible to easily insert and engage in each space from below, thereby improving maintenance workability such as assembly and replacement.

Further, since the elastic member 74 is in contact with the side plate 41, the elastic member 74 is hard to come off from the door stopper 71 even when the resin door 66 contacts, and the durability is improved. Also,
Since the elastic member 76 covers the door stoppers 72, 72, the contact area between the elastic member 76 and the side surface 46A is enlarged, so that even when the resin door 67 abuts, the elastic member 76 does not easily come off from the door stoppers 72, 72. This also makes it possible to improve the durability.

[0035]

As described above, 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 reduced, so that damage to the door itself and the door stopper can be effectively avoided. In addition, 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, so that the space between the inner and outer rail surfaces can be maintained by the elastic material. become able to. Therefore,
Deterioration of the sliding property of the door due to deformation of the rail surface or the like can be prevented beforehand, so that the door can be smoothly opened and closed. Further, the elastic member has a tapered shape, and has a groove opened on the rail surface side and the tip direction, and the door stopper is engaged in the groove. This makes it possible to engage and attach, thereby improving the workability of assembly and maintenance.

According to the second aspect of the present invention, the surface of the elastic member opposite to the surface in contact with the door is brought into contact with the wall surface located at the opening edge. It is difficult for the stopper to come off the stopper, and the durability can be improved.

According to the third aspect of the present invention, since the elastic member covers the plurality of adjacent door stoppers, the contact area between the elastic member and the rail is enlarged, so that the elastic member can be kept in contact with the door. It is difficult for the door stopper to come off from the door stopper, and the durability can be improved.

[0038]

[Brief description of the 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 side view of the upper part of the low-temperature showcase.

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

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

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Low-temperature showcase 2 Insulated box 22 Storage room 44 Upper support plate (upper outer rail surface) 46A Side surface (upper inner rail surface) 64 Opening 66, 67 Resin door 71, 72 Door stopper 74, 76 Elastic material 77, 78, 81, 82 groove

Continuation of front page (56) References JP-A-7-275093 (JP, A) JP-A-59-40462 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47F 3 / 04 E05F 5/02 F25D 23/02 302

Claims (3)

(57) [Claims] 1. A rail provided at an opening edge is moved in a left-right direction.
A puller that is movably supported and closes the opening so that it can be opened and closed.
A door and a door provided on the rail and contacting the door
In a door device provided with a stopper, the door stopper
Cover the rail with elastic material and attach the rail to the inner and outer rail surfaces.
The elastic material is on the back side of the outer rail surface and on the inner side.
Between the rail surfaces of the elastic member to taper the elastic material
Along with it, it has a groove open on the rail surface side and the tip direction,
A door wherein the door stopper is engaged in the groove
apparatus. 2. A horizontal rail is provided on a rail provided at an opening edge.
A puller that is movably supported and closes the opening so that it can be opened and closed.
A door and a door provided on the rail and contacting the door
In a door device provided with a stopper, the door stopper
Cover with the elastic material and the door of the elastic material abuts
The surface opposite to the surface was brought into contact with the wall surface located at the opening edge
A door device characterized by the above-mentioned. 3. A rail provided at an opening edge is moved in the left-right direction.
A puller that is movably supported and closes the opening so that it can be opened and closed.
A door and a door provided on the rail and contacting the door
In a door device provided with a stopper, the door stopper
The elastic material is covered with a plurality of adjacent elastic materials.
A door device characterized by covering a door stopper.