JP2002090045A - Storage case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem in the conventional art that leakage of cool air or intrusion of outside air easily occurs in the gap between doors of a sliding-door type storage case, in which movement (play) in the to-and-fro direction of the door is large. SOLUTION: Protrusions 62b, and 63b are provided in the lower part of doors 8, and 9 respectively. A plurality of channels 11 and 12 are formed along a lower rail 10. The protrusions can move in the channels. The dimension of the channel of the to-and-fro direction is somewhat greater than that of the protrusion in the to-and-fro direction, and it is made smaller than the dimension of the door in the to-and-fro direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage for closing an opening of a storage room with a sliding door so as to be openable and closable.

[0002]

2. Description of the Related Art Conventionally, a storage such as a low-temperature showcase or a refrigerator of this kind is provided with two sliding doors 10 made of glass by opening an opening of a storage room 7 as shown in FIGS.
At 8, 109, it was closed openably.

[0003]

Incidentally, a shelf 103 and a cooler 104 for cooling the inside of the storage room 7 are provided in the storage room 7 of such a storage room. When performing maintenance on the container 104 and the like, it is necessary to temporarily remove the door from the low-temperature showcase body. At this time, when removing the door from the upper rail 105 or the lower rail 110 provided above and below the front opening 15,
As shown in FIG. 15, rails 105 and 110 and door 108,
A predetermined dimension (dimensions A and B in FIG. 15) is required to incline the door between the door and the door 109. If this dimension is large, the door moves more forward and backward, so-called, The backlash of the door increases, and a space (gap) is generated between the doors. Therefore, conventionally, as shown in FIG. 14, a soft portion 168 made of a soft resin or the like is provided to close a space (gap) when the door is closed.

However, if the backlash of the door is large,
Cooling air leaks from this space (gap) or outside air easily enters, so that cooling performance deteriorates.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and it is an object of the present invention to reduce backlash of a door and to reduce a gap between a front door and a rear door provided in an opening. Accordingly, an object of the present invention is to provide a storage that can effectively prevent or suppress the leakage of cool air in the storage room.

[0006]

According to a first aspect of the present invention, there is provided a storage, wherein a lower rail is provided at a lower portion of a front opening edge of a storage room, and the opening is opened and closed by a plurality of sliding doors. A projection provided at a lower portion of the door,
A plurality of concave grooves formed in the longitudinal direction of the lower rail, wherein the protrusion is movable in the concave groove, and the longitudinal dimension of the concave groove is the same as that of the protrusion. The dimension of the door is slightly larger than the dimension in the front-rear direction, and smaller than the dimension of the door in the front-rear direction.

According to the first aspect of the present invention, the projecting portion is movable in the concave groove, and the longitudinal dimension of the concave groove is made slightly larger than the longitudinal dimension of the projecting portion. Since the size of the door is smaller than the size in the front-rear direction, the so-called looseness of the door in the front-rear direction is reduced, and the leakage of cool air from the gap between the front door and the rear door or the intrusion of outside air is reduced. be able to.

[0008] The storage of claim 2 is, in claim 1,
The lower part of the door slides on the upper surface of the lower rail.

According to the second aspect of the present invention, in addition to the first aspect, the lower portion of the door slides on the upper surface of the lower rail, so that a gap between the lower portion of the door and the lower rail is eliminated. Cold air leakage or outside air intrusion can be reduced.

The storage according to claim 3 is the storage according to claim 1,
The concave groove has an inclined surface extending upward from the bottom, and the protruding portion is slidable on the inclined surface of the concave groove.

According to the third aspect of the present invention, in addition to the first aspect, the concave groove has an inclined surface extending upward from the bottom, and the protrusion can slide on the inclined surface of the concave groove. Therefore, the front and rear doors slide at a certain position, keeping the gap between the front door and the rear door to a minimum, preventing leakage of cool air or intrusion of outside air from this gap. Can be reduced.

According to a fourth aspect of the present invention, in the storage, an upper rail is provided above a front opening edge of the storage room, and the opening is closed by a plurality of sliding doors so as to be openable and closable. A projection provided on an upper portion, and a plurality of grooves formed in a longitudinal direction of the upper rail, wherein the projection is movable in the groove; The size in the front-rear direction is slightly larger than the size of the protrusion in the front-rear direction, and smaller than the size in the front-rear direction of the door.

According to the fourth aspect of the present invention, the protrusion is movable in the groove, and the front-back dimension of the recess is slightly larger than the front-back dimension of the protrusion. Since the size of the door in the front-rear direction is smaller, so-called backlash in the front-rear direction of the door is reduced, and leakage of cold air or intrusion of outside air from a gap between the front door and the rear door is reduced. Can be done.

According to a fifth aspect of the present invention, in the storage device according to the first to fourth aspects, the protruding portion is freely movable in and out.

According to the fifth aspect of the present invention, in addition to the first to fourth aspects, since the projecting portion is capable of entering and exiting, the door is once removed from the low-temperature showcase main body. Since the predetermined gap between the rail and the door required when inclining the door can be effectively reduced, so-called backlash of the door in the front-rear direction is reduced, and the distance between the front door and the rear door is reduced. Leakage of cold air from the gap or intrusion of outside air can be reduced.

According to a sixth aspect of the present invention, in the storage according to the first to fifth aspects, the projecting portion has a width substantially equal to the width of the door.

According to the sixth aspect of the present invention, in addition to the first to fifth aspects, the projecting portion has a width substantially equal to the width of the door. The storage according to claim 7, wherein a lower rail can be provided at a lower portion of a front opening edge of the storage room, and the opening can be closed and opened by a plurality of sliding door-type doors. A sliding portion provided at a lower portion of the door, and formed in a longitudinal direction of the lower rail,
A plurality of concave grooves having a front-rear dimension larger than the front-rear dimension of the sliding section, wherein the sliding section is slidable by contacting upper front and rear corners of the concave groove.

According to the seventh aspect of the present invention, since the sliding portion is slidable by contacting the upper and lower corners of the groove, the front and rear doors slide at a predetermined position. In other words, by keeping the gap between the front door and the rear door to a minimum, it is possible to reduce leakage of cool air or intrusion of outside air from this gap.

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings. In addition, the same reference numerals are given to portions which are the same as or correspond to those of the conventional example in function or configuration.

FIG. 1 is a perspective view of a low-temperature showcase as an embodiment of a storage to which the present invention is applied, FIG. 2 is a plan sectional view showing a state where a door is closed, FIG. 3 is a plan sectional view of a main part of FIG. 4 is a front view of a low-temperature showcase, FIG. 5A is a front view showing a left door, FIG. 4B is a front view showing a right door, FIG. 6 is a side sectional view taken along line AA in FIG. 7 is a lower sectional view of FIG.
Is a side sectional view showing a state in which the door is removed, FIG. 9 is a lower sectional view of the second embodiment, FIG. 10 is a lower sectional view of the third embodiment,
FIG. 11 is a lower sectional view of the fourth embodiment.

The heat insulating box 1 of the low-temperature showcase S of the embodiment.
Is an outer case 2 made of a steel plate opening forward, an inner case 3 made of a steel plate or a hard resin opened forward and incorporated in the outer case 2 at intervals, and these outer case 2 and the inner case 3 and a heat insulating material 6 made of foamed polyurethane filled into the space by a foaming method in place. A breaker 4 made of a hard synthetic resin is provided at the opening side edges of the outer box 2 and the inner box 3, and an upper rail 5 and a lower rail 10 are attached to the upper and lower edges of the opening, respectively. ing.

A storage room 7 is formed in the inner box 3, and a front opening 15 of the storage room 7 is formed by two sheets fitted between the upper rail 5 and the lower rail 10 of the upper edge. Is opened and closed by a sliding door type right door 8 and left door 9. A machine room (not shown) for installing a compressor, a condenser, and the like included in the refrigeration cycle is configured below the heat insulating box 1 (outside the storage room). Further, a cooler and a cooling fan (not shown) included in the refrigeration cycle are attached to the upper part of the storage room 7, and the inside of the storage room 7 is cooled.

As shown in FIGS. 6 and 7, upper and lower concave grooves 11 and 12 are provided on the upper portion of the lower rail 10 at a distance from each other in the longitudinal direction (the left-right direction of the low-temperature showcase S).
It is provided over. Bottom surfaces 11a, 12a and front wall 11
b, 12b and the rear walls 11c, 12c,
Concave grooves 11 and 12 are formed respectively, and concave groove 1
The dimensions in the front-rear direction of 1 and 12 are the protrusions 61 at the lower part of the door to be described later.
b, 62b, 63b, and 64b are slightly larger than the front-rear dimension and smaller than the thickness of the lower portion of the door, which will be described later.

Similarly, in the lower portion of the upper rail 5, front and rear concave grooves 13 and 14 are provided in the longitudinal direction at intervals from each other. Top surfaces 13a, 14a and front wall 13
b, 14b and the rear walls 13c, 14c,
The concave grooves 13 and 14 are respectively formed, and the concave groove 1
The front and rear dimensions of the front and back of the doors 3 and 14 are as follows.
a, 62a and 63a, 64a are slightly larger than the front-rear dimension and smaller than the thickness of the upper part of the door described later.

Next, the configuration of the right door 8 and the left door 9 will be described.

As shown in FIG. 5, a right sash 41 and a left sash 42 are attached to side edges of a rectangular transparent glass plate 40 of the right door 8, and an upper sash 45 and a lower sash 46 are attached to upper and lower edges, respectively. Have been. Right sash 41
Is formed by integral extrusion molding of hard vinyl chloride, and a handle 41d is provided. The left sash 42 is formed by integral extrusion of hard and soft vinyl chloride, and is provided with a soft portion 42b protruding rearward. The upper and lower sashes 45 and 46 are formed by integral extrusion of hard vinyl chloride.

The left and right sashes 41, 42 are provided with insertion holes 41a, 42a extending vertically, respectively. Rod-like members formed of steel are inserted into the insertion holes 41a, 42a via coil springs (not shown). I have.
With this coil spring, this rod-shaped member projects freely above and below the right door 8 to project therefrom, and projecting portions 61a, 61b, 62a,
62b are formed.

On the other hand, a left sash 43 and a right sash 44 are respectively provided on the side edges of the rectangular transparent glass plate 40 of the left door 9.
However, an upper sash 47 and a lower sash 48 are attached to the upper and lower edges, respectively. The left sash 43 is formed by integral extrusion of hard vinyl chloride, and has a handle 43d. The right sash 44 is formed by integral extrusion of hard and soft vinyl chloride, and is provided with a soft portion 44b protruding forward. Upper and lower sash 47, 4
8 is formed by integral extrusion of hard vinyl chloride.

The left and right sashes 43 and 44 are provided with insertion holes 43a and 44a, respectively, extending vertically, and rod-shaped members made of steel are inserted into the insertion holes 43a and 44a via coil springs (not shown). I have.
With this coil spring, the bar-shaped member projects freely above and below the left door 9 to protrude, and the projecting portions 63a, 63b, 64a,
64b are formed.

With the above structure, the right door 8 and the left door 9 are disposed between the upper rail 5 and the lower rail 10, so that the front opening 15 is closed.

That is, the projections 61a of the right door 8 are inserted into the concave grooves 11 and 13 provided in the lower rail 10 and the upper rail 5, respectively.
The lower sash 46 of the right door 8 slides on the upper surface of the lower rail 10 while 61b, 62a, 62b are engaged. Similarly, the concave groove 1 provided in the lower rail 10 and the upper rail 5
The projections 63a, 63b, 64a, 6 of the left door 9 are provided at 2, 14.
4b is engaged, and the lower sash 48 of the left door 9 slides on the upper surface of the lower rail 10.

Thus, the sliding door type right door 8 and left door 9
Can open and close the front opening 15 of the storage room 7. Further, as shown in FIG. 3, a soft part 42b projecting rearward from the left sash 42 of the right door 8 is in contact with the front surface of the left door 9, and a soft part projecting forward from the right sash 44 of the left door 9. The portion 44b is in contact with the rear surface of the right door 8.

The longitudinal dimensions of the concave grooves 11 and 12 are the same as those of the lower projecting portions 61a formed of a rod-shaped member.
The right door 8 and the left door 9 hardly rattle in the front-rear direction because they are slightly larger than the diameter (dimension in the front-rear direction). Therefore, the positional relationship between the front and rear of the right door 8 and the left door 9 becomes substantially constant, and when the doors 8 and 9 are closed,
b and 44b respectively contact the door at substantially predetermined positions. Therefore, it is possible to effectively prevent or suppress the leakage of the cool air in the storage chamber 7 to the outside from the gap between the right door 8 and the soft part 44b or the gap between the left door 9 and the soft part 42b.

Next, it is necessary to remove the doors 8 and 9 from the main body when performing maintenance such as a cooler or removing a shelf. In such a case, the following is performed.

.. Of the right door 8 and the left door 9
As described above, the coil spring allows the door to move in and out, so that the door protrusions 61a.
While pushing in, the upper parts of the right door 8 and the left door 9 are tilted and removed forward, and maintenance such as a cooler and work for removing a shelf are performed. Then, as shown in FIG. 8, while projecting the projections 61a... Into the sash 41... Of the door while tilting the upper portions of the right door 8 and the left door 9 backward, the projections 61a.
The concave grooves 11, 12 of the upper rail 5 and the lower rail 10,
13 and 14.

As described above, the upper and lower rails 5 and 5 can be removed and attached while pushing the projections 61a into the sashes 41 of the door and tilting the upper portions of the right door 8 and the left door 9 forward. Concave groove 11, 12 of lower rail 10,
The front and rear dimensions of the front and rear walls 11b and 13c of the projections 13 and 14 are slightly larger than the front and rear dimensions of the protrusions 61a of the door. Can be inserted into the concave grooves 11, 12, 13, 14.

As a result, the backlash of the doors 8 and 9 in the front-rear direction is reduced, the front-rear positional relationship between the right door 8 and the left door 9 becomes substantially constant, and the gap between the right door 8 and the left 9 door is provided. Leakage of cold air in the storage room 7 from the outside to the outside can be effectively prevented or suppressed.

FIG. 9 shows the second embodiment. As in the first embodiment, the longitudinal dimensions of the concave grooves 11 and 12 are determined by the diameters of the protrusions 61b... Dimension) is slightly larger than the thickness of the lower part of the door (C dimension in Fig. 9).
Smaller dimensions. On the other hand, unlike the first embodiment, the projecting portions 61b at the lower part of the right door 8 or the left door 9 slide on the bottom surfaces 11a and 12a of the concave grooves 11 and 12 of the lower rail 10. Also in this embodiment, the positional relationship between the right door 8 and the left door 9 is substantially constant, and it is effective to prevent the cool air in the storage chamber 7 from leaking to the outside through the gap between the right door 8 and the left door 9. Can be prevented or suppressed.

Next, FIG. 10 shows a third embodiment.

The substantially horizontal bottom surfaces 31a, 32a, the front walls 31b, 32b rising forward, and the rear walls 31c, 32 falling forward.
c, and the concave grooves 31, 3 of the lower rail 10
2 is formed, and has an inverted trapezoidal shape in which the upper bottom is larger than the lower bottom. The size of the door protrusions 61b in the front-rear direction is larger than the size of the lower base in the front-rear direction and smaller than the size of the upper base in the front-rear direction.

In this embodiment, the door protrusions 61b.
Are inclined front walls 31b, 32 of the concave grooves 31, 32.
b and the rear walls 31c, 32c, respectively, and the protruding portions 61b of the door are located at substantially constant positions in the front-rear direction. Thereby, the backlash of the doors 8 and 9 in the front-rear direction is reduced, the positional relationship between the right door 8 and the left door 9 is substantially constant, and the gap between the right door 8 and the left 9 door is to the outside. Leakage of cold air in the storage room 7 can be effectively prevented or suppressed.

In this embodiment, the concave grooves 31 and 32 are used.
, One of the front walls 31b, 32b or the rear walls 31c, 32c is inclined, and the other is a substantially vertical wall. . Are located at substantially constant positions in the front-rear direction, and have the same effects as described above.

Even when these embodiments are carried out only on the upper part or the lower part of the storage room 7, the backlash of the doors 8 and 9 in the front-rear direction is reduced, and the cool air in the storage room 7 is reduced. Leakage can be effectively prevented or suppressed.

Next, FIG. 11 shows a fourth embodiment. The lower portions of the lower sashes 76 and 78 of the doors 8 and 9 respectively have rearwardly inclined surfaces 76a and 78a and forwardly inclined surfaces 76a.
b and 78b, and these inclined surfaces intersect to form apex portions 76c and 78c, respectively, and slide portions 76d and 78d that slide on the lower rail 10 are formed. That is, the front and rear inclined surfaces 76a at the lower portion of the right door 8,
76b respectively contact the upper edges 51d, 51e of the concave groove 51, and the front and rear inclined surfaces 78a, 78b of the lower portion of the left door 9
Are in contact with the upper edges 52d, 52e of the concave groove 52, respectively, and the apexes 76c, 78c are located in the concave grooves 51, 52. As a result, the sliding portions 76d, 78d are located at substantially constant positions in the front-rear direction of the concave grooves 51, 52, so that the backlash of the doors 8, 9 in the front-rear direction is reduced, and the right door 8 and the left door The positional relationship before and after 9 becomes substantially constant,
Leakage of cool air in the storage room 7 to the outside from the gap between the right door 8 and the left door 9 can be effectively prevented or suppressed.

In the above embodiment, the protrusion 61
are substantially equal to the length of the door in the longitudinal direction (lateral direction), the doors 8, 9 and the upper and lower rails 5, 10
Can be more effectively prevented or suppressed from leaking out of the cool air in the storage chamber 7 to the outside through the gap between them.

Further, in the above embodiment, the present invention is applied to the low-temperature showcase S. However, the present invention is not limited to this, and the present invention is effective for various storages such as refrigerators for home use or business use.

[0047]

As described above in detail, according to the first aspect of the present invention, the protrusion is movable in the groove, and the dimension of the groove in the front-rear direction is the length of the protrusion in the front-rear direction. And smaller than the size of the door in the front-rear direction, so that the so-called backlash of the door in the front-rear direction is reduced, and the cool air from the gap between the front door and the rear door is reduced. Leakage or ingress of outside air can be reduced.

According to the second aspect of the present invention, in addition to the first aspect, since the lower portion of the door slides on the upper surface of the lower rail, a gap between the lower portion of the door and the lower rail is eliminated. Cold air leakage or outside air intrusion can be reduced.

According to the third aspect of the present invention, in addition to the first aspect, the concave groove has an inclined surface extending upward from the bottom, and the projecting portion can slide on the inclined surface of the concave groove. Therefore, the front and rear doors slide at a certain position, keeping the gap between the front door and the rear door to a minimum, preventing leakage of cool air or intrusion of outside air from this gap. Can be reduced.

According to the fourth aspect of the present invention, the projecting portion is movable in the concave groove, and the longitudinal dimension of the concave groove is slightly larger than the longitudinal dimension of the projecting portion. Since the size of the door is smaller than the size in the front-rear direction, so-called backlash in the front-rear direction of the door is reduced, and leakage of cool air or intrusion of outside air from a gap between the front door and the rear door is reduced. Can be done.

According to the fifth aspect of the present invention, in addition to the first to fourth aspects, since the projecting portion is capable of entering and exiting, the door is once removed from the low-temperature showcase main body. Since the predetermined gap between the rail and the door required when inclining the door can be effectively reduced, so-called backlash of the door in the front-rear direction is reduced, and the distance between the front door and the rear door is reduced. Leakage of cold air from the gap or intrusion of outside air can be reduced.

According to the sixth aspect of the present invention, in addition to the first to fifth aspects, the projecting portion has a width substantially equal to the width of the door. According to the invention of claim 7, which can reduce the leakage of cold air or the intrusion of outside air, the sliding portion comes into contact with the upper corners of the front and rear of the concave groove so as to be slidable. Door slides at a certain position, and by keeping the gap between the front door and the rear door to a minimum, it is possible to reduce the leakage of cool air from the gap or the intrusion of outside air.

[Brief description of the drawings]

FIG. 1 is a perspective view of a low-temperature showcase as an embodiment of a storage to which the present invention is applied.

FIG. 2 is a plan sectional view showing a state in which a door is closed.

FIG. 3 is a sectional plan view of a main part of FIG. 2;

FIG. 4 is a front view of a low-temperature showcase.

5A is a front view showing a left door, and FIG. 5B is a front view showing a right door.

FIG. 6 is a side sectional view taken along line AA in FIG. 3;

FIG. 7 is a lower sectional view of FIG. 6;

FIG. 8 is a side sectional view showing a state where a door is removed.

FIG. 9 is a lower sectional view of the second embodiment.

FIG. 10 is a lower sectional view of the third embodiment.

FIG. 11 is a lower sectional view of the fourth embodiment.

FIG. 12 is a side sectional view showing a conventional low-temperature showcase.

FIG. 13 is a plan sectional view showing a state where a door is closed in FIG.

FIG. 14 is a cross-sectional plan view of a main part of FIG.

15 is a side sectional view showing a state where a door is removed in the showcase of FIG. 12;

[Explanation of symbols]

S Low-temperature showcase 5 Upper rail 7 Storage room 8 Right door 9 Left door 10 Lower rail 11, 12, 13, 14 Concave groove 11a, 12a Bottom surface 11b, 12b Front wall 11c, 12c Rear wall 13a, 14a Top surface 13b, 14b Front wall 13c, 14c Rear wall 31, 32 Recessed groove 41, 44 Right sash 42, 43 Left sash 45, 47 Upper sash 46, 48 Lower sash 46a, 48a Front inclined surface 46b, 48b Rear inclined surface 46c, 48c Apex portions 51, 52 Recessed grooves 51d, 51e, 52d, 52e Upper edge portions 61a, 61b, 62a, 62b, 63a, 63b, 6
4a, 64b Projection

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Zenichi Kakinuma 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. (reference) 2E034 BE01 BE03 CB01 DA11 3L102 JA03 KA08 KB21 KC02 KC03 KC07 KE02 KE12

Claims (7)

[Claims] 1. A protruding portion provided at a lower portion of a door in a storage having a lower rail provided at a lower portion of a front opening edge of a storage room and the opening being openably closed by a plurality of sliding doors. And a plurality of concave grooves formed in the longitudinal direction of the lower rail, wherein the protrusion is movable in the concave groove, and the dimension of the concave groove in the front-rear direction is the protrusion. A storage having a size that is slightly larger than a front-rear dimension of the part and smaller than a front-rear dimension of the door. 2. The storage according to claim 1, wherein a lower portion of the door slides on an upper surface of the lower rail. 3. The storage according to claim 1, wherein said concave groove has an inclined surface extending upward from a bottom, and said projecting portion is slidable on the inclined surface of said concave groove. 4. A protruding portion provided on an upper part of a door in a storage having an upper rail provided above an edge of a front opening of a storage room and the opening being openably closed by a plurality of sliding doors. And a plurality of concave grooves formed in the longitudinal direction of the upper rail, wherein the protrusion is movable in the concave groove, and the longitudinal dimension of the concave groove is the protrusion. A storage having a size that is slightly larger than a front-rear dimension of the part and smaller than a front-rear dimension of the door. 5. The storage according to claim 1, wherein said projecting portion is freely movable in and out. 6. The storage according to claim 1, wherein the projection has a width substantially equal to a width of a door. 7. A storage provided with a lower rail at a lower portion of a front opening edge of a storage room, wherein the opening is closed by a plurality of sliding doors so as to be openable and closable. Part, formed over the longitudinal direction of the lower rail,
A plurality of grooves having a front-rear dimension larger than the front-rear dimension of the sliding section, wherein the sliding section is slidable by contacting upper front and rear corners of the groove. Storage.