JP3086589B2 - Low temperature showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-temperature showcase having a side wall having a side plate attached to an upper surface.

[0002]

2. Description of the Related Art Conventionally, a low-temperature showcase of this kind is disclosed, for example, in JP-B-63-37305 (F25D23 / 00).
As shown in the figure, side walls are attached to both sides of a heat-insulating wall (substrate) to constitute a heat-insulating box, and a side plate usually made of a transparent wall is mounted on the upper portion of the side wall so that the inside of the refrigerator can be seen through. .

[0003]

A glass plate or a synthetic resin plate such as an acrylic resin is used as the transparent wall. However, since the interior of the low-temperature showcase is cooled to a low temperature, these side plates are not used. It cools and contracts, and expands when the temperature inside the refrigerator increases. Such deformation is particularly remarkable in the case of a synthetic resin plate.

[0004] In this way, the shrinkage and the
If the expanding and deforming side plate is immovably fixed to the side wall, there is a risk that the side plate itself may crack due to the deformation. Therefore, when the side plate is movably mounted on the side wall, the mounting strength is reduced this time, and there is a problem that the side plate is dropped by an impact or noise is generated by vibration.

The present invention has been made to solve the above-mentioned conventional technical problem, and it is an object of the present invention to provide a low-temperature showcase in which a side plate is firmly attached to a side wall while preventing damage due to deformation of the side plate. With the goal.

[0006]

A low-temperature showcase according to the present invention comprises a side wall filled with a heat-insulating material, a groove formed on the upper surface of the side wall, and a lower end inserted into the groove so as to form an upper surface of the side wall. An upright side plate, a fixing plate embedded in a heat insulating material in a side wall, a fixing device for fixing a proper position of the side plate to the fixing plate in the groove, and another portion of the side plate in the groove on the inner surface of the groove. And a tightening device for pressing.

In the low temperature showcase according to the second aspect of the present invention, the fixing device fixes the substantially central portion of the side plate to the fixing plate, and the fastening device presses both sides of the fixed portion against the inner surface of the groove. Features.

The low-temperature showcase according to the third aspect of the present invention is the low-temperature showcase according to the first aspect, wherein bolts are inserted through through holes formed in the outer plate or the inner plate of the side wall, penetrate the side plate, and are screwed to the fixing plate. In addition to forming the fixing device, the tightening device is configured with screws that screw directly to the outer plate or inner plate and press the side plate directly or indirectly, and cover these screws and through holes with decorations It is characterized by having done.

[0009]

According to the low temperature showcase of the present invention, the side plate is inserted into the groove on the upper surface of the side wall, and is fixed to the fixing plate embedded in the heat insulating material by the fixing device in the groove, and the other portion is inserted into the groove. The side plate can be firmly fixed to the upper surface of the side wall because the side plate is firmly fixed to the upper surface of the side wall by the tightening device, and the tightening device only presses the side plate against the inner surface of the groove. Is allowed, and damage to the side plate itself can be prevented from occurring.

[0010] In particular, when the substantially central portion of the side plate is fixed to the fixing plate by the fixing device and both sides of the fixed portion are pressed against the inner surface of the groove by the fastening device, the center portion is centered. The amount of deformation of the side plate can be substantially equalized on both sides, and the movement width of both ends can be minimized. In addition, since three points are held, the fixing strength of the side plate is further improved.

According to the third aspect of the present invention, the fixing device is constituted by bolts which are inserted through through holes formed in the outer plate or the inner plate of the side wall, penetrate the side plate, and are screwed to the fixing plate. Along with the outer plate or inner plate, the tip is directly
Alternatively, if the tightening device is configured by screws that indirectly press the side plate, the mounting operation of the side plate can be easily performed from the outer surface or the inner surface of the side wall. In addition, by covering these screws and through holes with decorations, it is possible to solve the problem of appearance.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a low-temperature showcase 1 of the present invention, and FIG.
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, and FIG.
FIG. 5 is a longitudinal sectional front view of a central portion of the side wall 10 of FIG.
The longitudinal front views of the front part are respectively shown.

In each of the drawings, a showcase 1 is used for displaying and preserving ice cream and the like in a convenience store or the like, and comprises a horizontally-long rectangular heat-insulating box 2 opened upward. The heat-insulating box 2 is made of a metal outer plate 3, a metal inner plate 6 incorporated in the outer plate 3 with a space therebetween, and a resin-made connecting member for connecting the upper ends of both plates 3, 6. Breaker 4 and these two plates 3, 6
And a heat insulating wall 5 having a substantially U-shaped cross section, comprising a foam heat insulating material 7 such as foamed polyurethane filled between the breakers 4 by an in-situ foaming method, and heat insulating side walls attached to both sides of the heat insulating wall 5. 10 and 10.

Duct plates 8, 9 are attached to the inside of the front and rear surfaces of the inner plate 6 at intervals, and the upper ends of the duct plates 8, 9 are bent inward 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 rising up and down from the bottom inside the inner plate 6. A storage room 22 is defined inside the bottom plate 11. On the other hand, the bottom wall 13 of the heat insulating wall 5 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, and 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 and 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 the heat insulating box 2 is located between the kick plates 26, 26. A machine room 27 is formed below the space.
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.

On the other hand, the side wall 10 includes an outer plate 91 and an inner plate 92 made of metal, and inner and outer spacers 93 and 94 made of wood or hard synthetic material interposed between upper ends of the two plates 91 and 92.
A foam heat insulating material 96 filled in a space surrounded by these two plates 91, 92 and spacers 93, 94 by an in-situ foaming method.
It is composed of

A metal fixing plate 97 is sandwiched between the center portions of the spacers 93 and 94 in the front-rear direction and extends downward, and the lower portion is inserted into the heat insulating material when the foam heat insulating material 96 is filled. It is buried. The side wall 10 is provided on the upper surface of the outer spacer 94.
A groove 98 is formed over substantially the entire width before and after the groove 98. This groove 98 opens upward between the upper ends of the inner and outer plates 91 and 92 on the upper surface of the side wall 10. A through hole 99 is formed in the upper central portion of the outer plate 91, and horizontal holes 101 and 102 are formed in both spacers 93 and 94 so as to correspond to the through hole 99. The fixing plate 97 has these horizontal holes 101,
A screw hole 103 having a thread groove corresponding to 102 is formed.

On both sides of the through hole 99 (the front and rear portions of the side plate 10), screw holes 104 having thread grooves are formed (FIG. 5).
Shown in The same applies to the rear portion of the side plate 10), the outer spacer 94.
A lateral hole 106 penetrating from the outer surface to the groove 98 is formed corresponding to the screw hole 104.

A side plate 41 made of, for example, a thick plate of transparent acrylic resin is inserted into the groove 98 of the outer spacer 94 from above. The side plate 41 has a substantially mountain shape that is inclined so that the upper portions of the front and rear sides 41A and 41B are close to each other.
The pressing plates 107, 10 made of stainless steel are provided between the outer surface of the lower end of the
8 is inserted. The side plate 41 is provided with a through hole 110 corresponding to the horizontal hole 102, and the pressing plate 107 is provided with a through hole 109 corresponding to the horizontal hole 102.

A bolt 112 as a fixing device to which a washer 111 is attached is inserted into the lateral hole 102 from the outside through the central through hole 99, and a through hole 109,
After passing through 110 and the horizontal hole 102, it is screwed into the fixing plate 97. The bolt 112 is pressed into the fixing plate 97 to press the side plate 41 against the inner surface of the groove 98 via the pressing plate 107 and to firmly fix the central portion of the side plate 41 to the fixing plate 97.

On the other hand, a screw 113 as a tightening device is screwed into the screw holes 104 on both sides (front and rear) from the outside, and the tip of the screw 113 passes through the horizontal hole 106 and contacts the pressing plate 108.
The screw 113 is fastened to the outer plate 91,
The side plate 41 is pressed against the inner surface of the groove 98 via the pressing plate 108, and both sides of the side plate 41 are pressed against the groove 98.

On the upper surface of the side wall 10, aprons 114 and 116 made of stainless steel are attached before and after the side plate 41, and below the aprons 114 and 116, heat insulating materials 117 and 118 made of foamed polyethylene are interposed. Further, a dew condensation prevention heater 119 is attached between the heat insulating materials 117 and 118 and the aprons 114 and 116. And the outer plate 9
A decorative plate 121 is attached to the upper end of 1 from the outside,
The through hole 99 and the screw 113 are covered and concealed.

As described above, a stainless steel top plate 42 is provided between the upper end portions of the side plates 41, 41 erected on the upper surfaces of the both side walls 10, 10, via the stainless steel decorations 43, 43. It is screwed from.

The top plate 42 has a mountain-shaped cross section along the shape of the upper portions of the side plates 41, 41. The lower surface of the top plate 42 is provided with front and rear stainless steel upper support plates 44, 44, which are also made of stainless steel. A plate 46 is attached. The upper support plates 44 constitute a part of the reflection plate 46. The upper support plates 44, 44 have a predetermined distance from the lower surface of the top plate 42, and the front ends thereof are front and rear sides 41A, 41A of the side plate 41.
Each of them is downwardly inclined downward substantially along the inclination of B.

Front and rear side surfaces 46A, 46A of the reflection plate 46
As shown in FIG. 3, the lower part is inclined downward and outward at intervals below the upper support plates 44, 44, and the lower surface thereof is bent in a crank shape to form a concave part 47 opened downward, and a concave part 47 upward. Open recesses 48 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. The ballast 52 (shown in FIG. 2) is provided. Also,
The upper end bases of the upper support plates 44, 44, that is, the top plate 4
A plurality of through-holes (elongated holes) 53... Are formed in the portion to be attached to the base 2, so that the inside of the recess 48 in which the stabilizer 52 is stored and the upper support plates 44, 44 Are in communication.

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, 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, and rise from the top end of the upper plate 57 while being inclined outward, and the outer ends are bent down again. The outer plates 3 are provided on the outer ends of the rail plates 61, 61.
Decorative plate 62 is attached. The rail plate 61 is flush with the aprons 114 and 116 of the side plate 10, and the decorative plate 62 is continuous with the decorative plate 121.

The outer portions of the upper plates 57 are bent in a substantially Z-shape as described above, so that
6 is formed with an inner rail surface extending to the left and right facing the side surface 46A, 46A direction, and the rail plates 61, 61 are parallel to the outer side of the inner rail surface to form the upper support plates 44, 4
Outer rail surfaces facing in four directions are formed. Each of the inner and outer rail surfaces has a predetermined width, and the main rail 63 is formed by these inner and outer rail surfaces. The storage room 22 of the showcase 1 is opened in the front-rear direction between the main rails 63 and 63 and the top plate 42 (openings 64 and 6).
4) Yes.

With this configuration, the storage room 2 of the showcase 1
The upper edges of the front and rear openings 64, 64 are located deeper than the lower edge and open diagonally upward, and the main rails 63, 63 are located at the lower edges of these openings 64, 64. The side surfaces 46 </ b> A, 46 </ b> A of the reflection plates 44, 44 are located at the upper edges of the openings 64, 64.

Further, an auxiliary rail 71 made of stainless steel is detachably mounted on the main rails 63, 63. The auxiliary rail 71 is formed in a substantially W shape by welding two stainless steel plates.
Thereby, inner and outer rail surfaces are formed. The surface of the auxiliary rail 71 is coated or coated with a fluorine-based resin (such as Teflon).

On the inner and outer rail surfaces of the auxiliary rail 71, a plurality of sliding door type resin doors 73 made of a transparent acrylic resin plate are slidably mounted and supported. In this case, in the embodiment, eight resin doors 73 are supported in the front and rear two by two inside and outside, and the upper part of the resin door 73 supported on the inner rail surface is supported by the side surface 46A of the reflection plate 46, The upper portion of the resin door 73 supported on the outer rail surface is supported by the upper support plate 44.

A pipe 88 made of white vinyl chloride is attached inside the resin door 73 along the slope of the rear side 41B of the side plate 41. The pipe 88 is provided in the machine room 2
7 and the space above the reflector 46, and a lead wire (not shown) to the fluorescent lamp 51 is drawn through the pipe 88 from the electrical box above the reflector 46.

With the above arrangement, the compressor and the blower 19,
When 31 is operated, the cool air cooled by the cooler 17 is blown up backward in the duct 12 from the inclined surface 13C,
It is discharged toward the upper part of the storage room 22 from the discharge port 9A at the upper end of the duct plate 9. The cool air circulated in the storage chamber 22 is sucked into the duct 12 from the suction port 8A at the upper end of the duct plate 8 and circulates back to the blower 19 (indicated by a broken arrow in FIG. 2). Thereby, the inside of the storage room 22 is, for example, -2.
It is cooled to a predetermined freezing temperature such as 0 ° C.

By the cooling, the side plate 4 made of acrylic resin is formed.
1 shrinks in the front-rear direction, but according to the invention, the screw 11
3 simply presses the side plate 41 against the inner surface of the groove 98, so that the side plate 41 can be allowed to deform due to shrinkage or expansion when the temperature rises, thereby preventing the side plate 41 itself from being damaged. become able to.

In particular, the central portion of the side plate 41 is fixed to the fixing plate 97 with the bolt 112, and both sides of the fixed portion are
Because it is pressed against the inner surface of the groove 98 by 13 and 113,
The amount of deformation of the side plate 41 centered on the center can be substantially equalized on both sides, and the movement width of both ends can be minimized. In addition, since three points are held, the fixing strength of the side plate 41 is further improved.

Further, since the bolt 112 and the screw 113 can be screwed from the outside of the outer plate 91, the side plate 4
The mounting workability of (1) is remarkably improved. And screw 113
Further, since the through holes 99 are covered with the decorative plate 121, there is no problem in appearance. In the embodiment, the bolts 112 and the screws 113 are attached from the outer plate 91 side. However, the present invention is not limited to this, and the through holes 99 and the like may be formed in the inner plate 92 side and the bolts 112 and the like may be attached from the inside. Also, the side plate 4
The present invention is not limited to synthetic resin, but is effective even if it is made of glass.

[0039]

As described above in detail, according to the present invention, the side plate is inserted into the groove on the upper surface of the side wall, and is fixed in the groove by the fixing device to the fixing plate buried in the heat insulating material, and the other parts are fixed. Since the inner surface of the groove is pressed against the inner surface of the groove by the tightening device, the side plate can be firmly fixed to the upper surface of the side wall, and the tightening device only presses the side plate against the inner surface of the groove. Deformation due to contraction / expansion is allowed, and damage to the side plate itself can be prevented.

In particular, when the substantially central portion of the side plate is fixed to the fixing plate by the fixing device, and both sides of the fixed portion are pressed against the inner surface of the groove by the fastening device, the center portion becomes the center. The amount of deformation of the side plate can be substantially equalized on both sides, and the movement width of both ends can be minimized. In addition, since three points are held, the fixing strength of the side plate is further improved.

Further, as in the third aspect of the present invention, the fixing device is constituted by bolts which are inserted through through holes formed in the outer plate or the inner plate of the side wall, penetrate the side plate, and are screwed to the fixing plate. Along with the outer plate or inner plate, the tip is directly
Alternatively, if the tightening device is configured by screws that indirectly press the side plate, the mounting operation of the side plate can be easily performed from the outer surface or the inner surface of the side wall. In addition, by covering these screws and through holes with decorations, it is possible to solve the problem of appearance.

[Brief description of the drawings]

FIG. 1 is a perspective view of a low-temperature showcase of the present invention.

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

FIG. 3 is a vertical side view of the upper part of the low-temperature showcase of the present invention.

FIG. 4 is a vertical sectional front view of a central portion of a side wall of the low-temperature showcase of the present invention.

FIG. 5 is a vertical front view of a front portion of a side wall of the low-temperature showcase of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Showcase 2 Heat insulation box 10 Side wall 41 Side plate 91 Outer plate 92 Inner plate 96 Foam insulation 97 Fixing plate 98 Groove 112 Bolt 113 Screw

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Yoshihisa Ishida 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Shuji Kashide 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Toyosaku Hamada, Inventor 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Hiroshi Hayashi 2-chome, Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (56) References JP-A-3-122482 (JP, A) JP-A-2-287075 (JP, A) JP-A-59-100378 (JP, A) Shokai Sho64 −7855 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47F 3/04 F25D 23/00

Claims (3)

(57) [Claims] A side wall filled with a heat insulating material, a groove formed on an upper surface of the side wall, a side plate having a lower end inserted into the groove and standing upright on the upper surface of the side wall; A fixing plate buried in a heat insulating material, a fixing device for fixing an appropriate position of the side plate to the fixing plate in the groove, and a tightening device for pressing another portion of the side plate in an inner surface of the groove in the groove. And a low-temperature showcase comprising: 2. The low-temperature showcase according to claim 1, wherein the fixing device fixes a substantially central portion of the side plate to the fixing plate, and the fastening device presses both sides of the fixed portion against the inner surface of the groove. 3. A fixing device comprising bolts which are inserted through through holes formed in an outer plate or an inner plate of a side wall, penetrate the side plate, and are screwed to the fixing plate, and the outer plate or the inner plate. 2. A low-temperature showcase according to claim 1, wherein the tightening device is constituted by screws which are screwed into the end plate and directly or indirectly press the side plate, and these screws and through holes are covered with decorations. .