JPH09210542A - Door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door crevice which reduces or eliminates a gap due to the presence of a door stopper and improves the strength of a door itself. SOLUTION: This door device comprises a plurality of sliding door type resin doors 66 laterally movably supported to an upper support plate 44 and lower outside rail 63B provided at the opening edge to openably close an opening 64, and a door stopper 71 provided at the plate 44 of the position where the doors 66 are butted to one another in contact with the doors 66. The door device also comprises frame members 83 mounted along the edge of the side where the doors 66 are butted to one another and provided in a range except the parts where the doors 66 are brought into contact with the stopper 71.

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 kind is provided with an inside surrounded by a transparent wall such as glass as shown in Japanese Utility Model Publication No. 61-40212 (A47F3 / 04). The opening formed on the rear surface is closed by a sliding sliding door type transparent door made of a resin plate such as acrylic. Further, in this type of low temperature showcase, in order to make it easier for customers and the like to see the products displayed in the warehouse, there is a tendency to abolish the central support pillar that partitions the center of the opening and the doors abut the left and right doors.

If such a central support is abolished, doors that are abutted from the left and right cannot stop (abut) at a predetermined position (center of the opening). Therefore, conventionally, a door stopper 100 as shown in FIG. It was provided. That is, in FIG. 8, 103 is an upper rail surface located at the upper edge of the opening 102 that is opened obliquely upward of the showcase, and 104 is a lower rail surface located at the lower edge of the opening 102.

The door stopper 100 is made of a plate such as a steel plate or resin, and is attached to the center of the upper rail surface 103 in the left-right direction. Then, on these upper and lower rail surfaces 103 and 104, a transparent acrylic resin plate or PET
Doors 106, 106 made of resin plates or the like are slidably supported to the left and right. In addition, 107 is a handle adhered to the surface of the door 106 on the butting side, and the broken line shows the door 10
6 is a heat ray reflective film 108 attached to the back surface of No. 6.
Further, actually, a door is further provided inside the door 106 of the opening 102, and the left and right portions of the opening are opened and closed.

[0005]

With such a structure, when the doors 106, 106 are opened and then closed again, the door stopper 100 has edges on both sides of the doors 106, 106 which abut against each other from the left and right sides. The upper ends of the parts come into contact with each other and stop, so that they are positioned, but on the other hand, the door 1
Between the edges of the 06 and 106 on the mutually butted side,
A gap corresponding to the thickness of the door stopper 100 is generated.

There is a problem that a large amount of dew is generated in the storage chamber because the outside air enters the storage chamber of the low temperature showcase through this gap. Therefore, the door stopper 100
Although it is possible to form a notch in the portion of the door 106 that abuts against to prevent the occurrence of such a gap, the number of man-hours for forming the door increases and the finishing becomes troublesome. Especially, since the thickness of the door stopper 100 is small, the depth of the notch is usually 1 m.
m or less. Therefore, it cannot be manufactured by pressing,
There was a problem that it had to be formed by cutting, which caused a rise in production costs.

Further, since the door 106 made of this kind of resin absorbs moisture and warps, there is a risk that a gap is also caused by this and the outer and inner doors come into contact with each other so that the door cannot be opened and closed. The present invention has been made to solve the above-mentioned conventional technical problems, and provides a door device that reduces or eliminates a gap due to the presence of a door stopper and also improves the strength of the door itself. To aim.

[0008]

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 plurality of sliding door type doors that openably close the opening,
The doors are provided at rails at positions where the doors are abutted against each other, and each door is provided with a door stopper, and the frame members attached along the edges of the doors abutted against each other are attached. These frame members are provided over a range other than the portion where each door abuts the door stopper.

According to the present invention, since the frame members are attached along the edges of the doors that are abutted against each other, the strength of the door itself is improved even when the door is made of a resin plate. It is possible to remarkably improve and prevent or suppress the occurrence of warpage due to moisture absorption. Further, when the door is closed, the frame members come into contact with each other, so that the edge of the door is prevented from cracking.

Particularly, since these frame members are provided over the range other than the portion where each door abuts on the door stopper, the gap between the doors due to the existence of the door stopper is reduced by each frame member.
Alternatively, it can be resolved. Further, since the frame member does not come into contact with the door stopper when the door is closed, the collision noise can be prevented from occurring even when they are made of metal, and the door opening and closing can be made quieter. is there.

In the above, the door device according to the invention of claim 2 is:
The total thickness of each frame member is made equal to the thickness of the door stopper. According to the invention of claim 2, in addition to the above, the total thickness dimension of each frame member is made equal to the thickness dimension of the door stopper. Therefore, each door is predetermined by the door stopper in the closed state. While being stopped at the position, the gap generated by the door stopper can be almost completely closed by each frame member at least in the left-right direction.

A door device according to a third aspect of the present invention is the door device according to the first aspect, which is provided with a handle arranged on the front surface of the door and screwed from the back side, and a film attached to the back surface of the door. A reinforcing plate directed to the film is provided between the portion and the door, and the screw hole formed in the reinforcing plate is made smaller than the screw hole formed in the film. According to the third aspect of the invention, since the handle is screwed to the door, the appearance is improved and the fixing is reliable as compared with the conventional bonding. In addition, when attaching a film such as a heat ray reflective film to the back surface of the door, the film sticking manufacturer and the handle sticking manufacturer are different in the structure of sticking the grip.
Although the parts are moved by this, the inconvenience can be solved by the present invention.

Particularly, since the reinforcing plate directed to the film is interposed between the screw head and the door, it is possible to further reinforce the door and prevent damage to the film due to the screw, and Since the screw holes formed in the plate are made smaller than the screw holes formed in the film, it is possible to prevent damage to the film due to the edges of the screw holes of the reinforcing plate.

In the above, the door device according to the invention of claim 4 is:
The size of the reinforcing plate is the same as or smaller than the surface of the handle that contacts the door. According to the invention of claim 4, in addition to the above, the reinforcing plate has the same size as or smaller than the surface on which the handle comes into contact with the door. Therefore, even when the door is transparent, the reinforcing plate is hidden by the handle. It becomes invisible from the outside and the appearance is improved.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a perspective view of a low temperature showcase 1 to which the present invention is applied, FIG. 2 is a vertical side view of the low temperature showcase 1, and FIG. 3 is a vertical side view of an upper portion of the low temperature showcase 1.
Shows enlarged side views of the top plate 42 of the low temperature showcase 1, respectively.

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 attached 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.

As shown in FIGS. 3 and 4, the top plate 42 has a mountain-shaped cross section along the shape of the side plates 41 and the upper part of the side plate 41. A reflector plate 46 also made of stainless steel is attached via the plates 44, 44. The upper support plates 44, 44 are spaced apart from the lower surface of the top plate 42, and the tips of the upper support plates 44, 44 are inclined downwards substantially along the inclinations of the front and rear sides 41A, 41B of the side plate 41, respectively. The part faces the upper support plate 44 with a space.

As shown in FIGS. 3 and 4, the front and rear side surfaces (upper inner rails) 46A, 46A of the reflection plate 46 are inclined downward toward the outside with a space below the upper support plates 44, 44, The lower surface thereof is bent like a crank, and a recess 47 that opens downward and a recess 48 that opens upward are juxtaposed in the front-rear direction. Then, the recess 47 opened downwardly
A horizontally long fluorescent lamp 51 inserted into a jacket 49 is accommodated therein, and a ballast 52 for lighting the fluorescent lamp 51 is disposed in the recess 48 opened upward. . Further, a plurality of through holes (long holes) 53 ... Are bored in the upper end base portions of the upper support plates 44, 44, that is, the mounting portions to the top plate 42, whereby the stabilizer 52 is provided. Inside the recess 48 in which the
The upper surfaces of 4, 44 communicate with each other.

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
An auxiliary rail 63 made of stainless steel is removably 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, and thereby a lower inner rail 63A and a lower outer rail 63B are formed.

Then, the lower inner and outer rails 63A, 6
3B faces the side surfaces (upper inner rails) 46A and 46A of the reflection plate 46 and the upper support plates (upper outer rails) 44 and 44, respectively. These rails 6
Showcase 1 between 3A and 63B and the top plate 42
The storage chamber 22 is opened in the front-rear direction (openings 64, 64).

On the lower inner and outer rails 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 ...
And the lower inner rail 63 is supported in the closed state.
The upper portions of the inner resin doors 67, 67 supported on both sides of A are slidably supported on the side surfaces (upper inner rails) 46A of the reflection plate 46 as shown in FIG.

Also, in the closed state, the lower outer rail 63B
The upper portions of the outer resin doors 66, 66 supported by the central portion of the and abutting against each other are slidably supported by the upper support plate (upper outer rail) 44. Incidentally, 68 is a handle provided on the abutting side of the resin doors 66, 66 and on the outer surface of the resin doors 67, 67 as described later.
Here, a door stopper 71 is attached to the center portion in the left-right direction of the upper support plate 44 that serves as the upper outer rail,
The side surface (upper inner rail) 46 of the reflection plate 46 at a position of approximately 50 mm to the left and right of the door stopper 71 (range in which the handle 68 does not contact the resin door 66 when the resin door 67 is opened).
A door stopper 72 is attached to A.

Each of the door stoppers 71, 72 is made of a steel plate having a thickness of about 2 mm, and is welded and fixed to each rail (the upper support plate 44, the side surface 46A) in the vertical direction with the wide surface facing left and right. The door stoppers 71 and 72 are the upper support plate 4
4. Each of the side surfaces 46A protrudes outward from the side surface 46A, and when the outer resin door 66 is closed, the upper ends of the edges of the outer resin door 66 abut against the door stopper 71, or the inner resin door 67 is opened. In this case, the upper portion of the resin door 67 comes into contact with each other and stops at a predetermined position.

On the other hand, a heat ray reflective film 74 is attached to the back surface of each resin door 66, 67 as shown in FIGS. 5 and 6 (only the outer resin doors 66, 66 are shown). Further, two screw holes 76, 76 are vertically formed at the handle mounting positions of the resin doors 66, 67, and the heat ray reflection film 74 at a position corresponding to the screw holes 76, 76 also has a screw hole 77,
77 are formed.

The handle 68 is formed of a colored resin material, and two holes 78 for screwing are formed on the back surface of the handle 68 so as to be vertically recessed. Then, the handle 68 is attached to the door 6 with a screw 81 via a stainless steel reinforcing plate 79.
It is fixed to 6, 67. The reinforcing plate 79 is formed to have the same size as or smaller than the surface of the handle 68 on which the handles 68 abut the resin doors 67, and is elongated vertically, and the reinforcing plate 79 is also provided with two screw holes 82 at the upper and lower sides. This screw hole 82
Is smaller than the screw hole 77 of the heat ray reflective film 74.

When attaching the handle 68, first, the reinforcing plate 79 is directed to the heat ray reflective film 74 with the screw holes 82, 82 corresponding to the screw holes 76, 76. From the front side, screw holes 7
The handles 68 are fixed to the resin doors 66 and 67 by inserting screws 81 and 81 from the back side and screwing the screws 68 onto the handles 68 in a state where the handles 68 and 76 are addressed. In this state, the reinforcing plate 79 is interposed between the head of the screw 81 and the heat ray reflective film 74.

In this way, the handle 68 is attached to the resin doors 66, 67.
Since it is fixed with the screw 81, bubbles and the like are not visible as compared with the conventional adhesive and the appearance is improved, and the fixation is also reliable. Further, in the structure of adhering the handle, the film sticking maker and the handle adhering maker are different from each other, which causes movement of the parts, but in the embodiment, such inconvenience can be solved.

In particular, the head of the screw 81 and the resin doors 66, 67
Since a reinforcing plate 79 directed to the heat ray reflective film 74 is provided between them, the resin doors 66 and 67 are reinforced and the screws 81 are provided.
Since it is possible to prevent the heat ray reflection film 74 from being damaged due to, the screw hole 82 formed in the reinforcing plate 79 is made smaller than the screw hole 77 formed in the heat ray reflecting film 74. Damage to the heat ray reflective film 74 due to the edge of the screw hole 82 can be prevented in advance.

Further, the handle 68 of the reinforcing plate 79 has the resin door 6
Since the dimensions are the same as or smaller than the surfaces abutting against 6, 6 and 67, the reinforcing plate 79 is hidden by the handle 68 so that it cannot be seen from the outside and the appearance is improved. On the other hand, resin door 6
A frame member 83 made of stainless steel is attached to both side edges of 6 and 67 (including edges on the sides where the resin doors 66 and 66 are butted against each other). 5 and 6, the resin door 6
Only 6 and 66 are described. The frame member 83 has a substantially U-shaped cross section, and the thickness dimension thereof is equal to that of the two door stoppers 71 (72). Further, the frame member 83 extends vertically in a range other than the portion where the resin doors 66 and 67 contact the door stopper 71 (72).

With such a structure, the frame members 83, 8 are provided along the edges of the resin doors 66, 66 on the mutually butting sides.
Since the respective 3 are attached, the strength of the door itself can be significantly improved, and the occurrence of warpage due to moisture absorption can be prevented or suppressed. Further, when the resin doors 66, 66 are closed, the frame members 83, 83 come into contact with each other, so that the edge portions of the resin doors 66, 66 are prevented from cracking.

In particular, these frame members 83 are provided for each resin door 6
Since 6 and 66 are provided over the range other than the portion in contact with the door stopper 71, the gap between the resin doors 66 and 66 due to the presence of the door stopper 71 is reduced by the frame members 83 and 83. Or, it can be resolved. Also,
Since the frame members 83 and 83 do not contact the door stopper 71 when the resin doors 66 and 66 are closed, it is possible to prevent a collision noise from occurring and to reduce the noise of opening and closing the door.

Since the total thickness of the frame members 83, 83 is equal to the thickness of the door stopper 71, the door stopper 71 is closed with the resin doors 66, 66 closed.
This makes it possible to stop the doors 66, 66 at predetermined positions and close the gap generated by the door stopper 71 by the frame members 83, 83 at least in the left-right direction.

As a result, it is possible to suppress or prevent outside air from entering the storage chamber 22 and reduce or eliminate the occurrence of dew in the storage chamber 22. Although the reinforcing plate 79 is formed of a flat plate in the above-described embodiment, the reinforcing plate 79 is further strengthened by bending the flange 79A standing on the edge in the longitudinal direction as shown in FIG. It is possible to further improve the reinforcing effect of the resin doors 66 and 67.

[0041]

As described above in detail, according to the present invention, since the frame members are attached along the edges of the doors on the mutually butting sides, when the doors are made of resin plates, Also, the strength of the door itself can be significantly improved, and the occurrence of warpage due to moisture absorption can be prevented or suppressed. Further, when the door is closed, the frame members come into contact with each other, so that the edge of the door is prevented from cracking.

Particularly, since these frame members are provided over the range other than the portion where each door abuts the door stopper, the gap between the doors due to the presence of the door stopper is reduced by each frame member.
Alternatively, it can be resolved. Further, since the frame member does not come into contact with the door stopper when the door is closed, the collision noise can be prevented from occurring even when they are made of metal, and the door opening and closing can be made quieter. is there.

Further, according to the invention of claim 2, in addition to the above, the total thickness of each frame member is made equal to the thickness of the door stopper, so that the door stopper is kept closed. With this, it is possible to stop the doors at predetermined positions and close the gaps generated by the door stoppers by the frame members at least in the left-right direction.

Further, according to the third aspect of the present invention, since the handle is screwed to the door, the appearance is improved as compared with the conventional one that is adhered, and the fixing is also reliable.
Further, when a film such as a heat ray reflective film is attached to the back surface of the door, the film attaching maker and the handle adhering maker are different from each other in the structure of adhering the handle, which causes movement of parts, but the present invention has the disadvantages. It can be resolved.

In particular, since the reinforcing plate directed to the film is interposed between the screw head and the door, it is possible to further reinforce the door and prevent the film from being damaged by the screw, and Since the screw holes formed in the plate are made smaller than the screw holes formed in the film, it is possible to prevent damage to the film due to the edges of the screw holes of the reinforcing plate.

Further, according to the invention of claim 4, in addition to the above, the reinforcing plate has a size equal to or smaller than the surface of the handle that abuts on the door. Therefore, even when the door is transparent, the reinforcing plate is Is hidden by the handle and cannot be seen from the outside, improving the appearance.

[Brief description of drawings]

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

FIG. 2 is a vertical sectional side view of a low temperature showcase to which the present invention is applied.

FIG. 3 is a vertical sectional side view of an upper portion of a low temperature showcase to which the present invention is applied.

FIG. 4 is an enlarged vertical sectional side view of a top plate portion of a low temperature showcase to which the present invention is applied.

FIG. 5 is a front view of a resin door portion outside a low temperature showcase to which the present invention is applied.

FIG. 6 is a sectional view taken along line AA of FIG. 5;

FIG. 7 is a sectional view of a resin door for explaining another embodiment of the reinforcing plate.

FIG. 8 is a front view of a conventional sliding door type door.

[Explanation of symbols]

 1 Low Temperature Showcase 2 Insulation Box 22 Storage Room 44 Upper Support Plate (Upper Outer Rail) 46A Side (Upper Inner Rail) 64 Opening 66, 67 Resin Door 68 Handle 71, 72 Door Stopper 74 Heat Ray Reflective Film 77, 82 Screw Hole 81 screw 83 frame member

Claims (4)

[Claims] 1. A plurality of sliding door doors supported by rails provided at the edge of the opening so as to be movable in the left-right direction and closing the opening so as to open and close, and the rail at a position where these doors abut each other. A door device provided with a door stopper with which each door abuts has a frame member attached along an edge portion of each door that is abutted against each other, and these frame members are: A door device, wherein each door is provided over a range other than a portion in contact with the door stopper. 2. The door device according to claim 1, wherein the total thickness of each frame member is equal to the thickness of the door stopper. 3. A handle provided on the front surface of the door and screwed from the back side, and a film attached to the back surface of the door. The film is provided between the screw head and the door. 2. The door device according to claim 1, wherein the reinforcing plate is provided, and the screw hole formed in the reinforcing plate is smaller than the screw hole formed in the film. 4. The door device according to claim 3, wherein the reinforcing plate has a size equal to or smaller than a surface of the handle that contacts the door.