JP3219669B2 - 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 in which a side plate is attached to an upper surface of a heat insulating wall.

[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 FIG. 1, side walls are attached to both sides of a heat insulating wall (substrate) to form a heat insulating box, and a side plate made of a transparent wall is mounted on the upper side of the side wall so that the inside of the refrigerator can be seen through.

[0003]

In this case, the lower end of the side plate is inserted into the side wall from a groove formed on the upper surface of the side wall, and a bolt is provided from the outside at the center to a nut plate provided in advance in the side wall. Since the bolts are tightened, there is a problem that stress concentrates on the bolted portions and cracks occur in the side plates.

[0004] Further, since the bolts are tightened from the outside inside the side wall, there has been a problem that the heat insulating material absorbs water from this portion and deteriorates in quality. The present invention has been made to solve such a conventional technical problem, and an object of the present invention is to provide a low-temperature showcase that can securely and securely fix a side plate to an upper surface of a heat insulating wall.

[0005]

A low-temperature showcase according to the present invention comprises a heat insulating wall filled with a heat insulating material, a groove formed on the upper surface of the heat insulating wall, and a lower end inserted into the groove. A side plate erected on the upper surface of the heat insulating wall, and a pair of angle members fixed to the heat insulating wall while clamping the side plate on the upper surface of the heat insulating wall and tightening from both sides. An outer plate, an inner plate, a breaker connecting the upper ends thereof, and a heat insulating material filled in a space formed by the outer plate, the inner plate, and a groove into which a side plate is inserted. A nut plate to which the angle material is fixed is attached to the heat insulating material side of the breaker, and the groove has a deepened rear portion.

According to the present invention, the side plate is sandwiched between the upper surfaces of the heat insulating walls by a pair of angle members fixed to the heat insulating walls,
Since the fastening is performed from both sides, it is difficult for stress to concentrate on one place of the side plate, and damage to the side plate can be effectively prevented. Further, since the side plate can be fixed on the upper surface of the heat insulating wall, the bending of the side plate is reduced, and even when the groove side is deformed, it can be easily corrected at the holding portion.

Further, since a groove for inserting a side plate is formed in a breaker constituting a heat insulating wall, and a nut plate for fixing an angle material is attached to the heat insulating material side of the breaker, there is no problem in filling the heat insulating material. Grooves can be formed.

Further, since the inner part of the groove of the breaker is expanded, even if the upper part or the central part of the groove becomes narrow due to the pressure at the time of filling the heat insulating material, the side plate can be pushed into the inner part of the groove. It becomes.

According to a second aspect of the present invention, there is provided a low-temperature showcase, wherein the heat-insulating wall is filled with a heat-insulating material, a groove is formed in the upper surface of the heat-insulating wall, and a lower end is inserted into the groove. A side plate erected on the upper surface of the wall, and a pair of angle members fixed to the heat insulating wall while clamping the side plate on the upper surface of the heat insulating wall and tightening from both sides, and the upper surface of the heat insulating wall outside the side plate And an angle member extending upward from a gap between the bumper and the side plate.

According to the invention of claim 2, even if an external force is applied to the bumper and the bumper is pushed toward the side plate, the bumper does not directly contact the side plate by contacting the angle material, so that the occurrence of damage to the side plate is effective. Can be prevented.

[0011]

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 of the present invention, 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, and FIG. Enlarged longitudinal side view of two openings, FIG.
Is a vertical front view of the central part of the side wall 10 of the low-temperature showcase 1,
FIG. 6 is a perspective view of the same.

In each of the drawings, a low-temperature showcase 1 is used for displaying and preserving ice cream and the like in, for example, a convenience store and the like. ing. The heat insulating box 2 includes a metal outer plate 3 and the outer plate 3.
A metal inner plate 6 incorporated with a gap therebetween, a resin breaker 4 connecting the upper ends of both plates 3 and 6, and an in-situ foaming method between these two plates 3, 6 and breaker 4. A heat-insulating wall 5 having a substantially U-shaped cross-section and a heat-insulating material 7 made of foamed polyurethane or the like filled and filled, and heat-insulating side walls 10 and 10 attached to both sides of the heat-insulating wall 5. ing.

Duct plates 8 and 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 and 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. 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. Incidentally, reference numeral 20 denotes a temperature sensor attached to the cool air outflow side of the cooler 17, and reference numeral 25 denotes a duct plate 9.
Is a rectifying plate mounted in the duct 12 at the center of the rectifier.

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.

On the other hand, the side wall 10 includes a metal outer plate 91 and an inner plate 92, a hard synthetic resin breaker 93 connecting the upper ends of the two plates 91 and 92, and the both plates 91 and 92 and the breaker 93. And a heat insulating material 94 made of foamed polyurethane filled in a foamed-in-place manner in a space surrounded by the above. A downward engaging groove 96 into which the upper end of the inner plate 92 is inserted is formed at the inner end of the breaker 93, and an outward engaging groove into which the upper end of the outer plate 91 is inserted at the outer end. 97 are formed. In addition, breaker 9
A groove 98 that opens to the upper surface in the longitudinal direction is integrally formed at the central portion in the width direction of No. 3.

The opening area of the entrance of the groove 98 is substantially equal to the cross-sectional area of the side plate 41 described later, but the inner dimension of the inner part is further expanded. Also, two ribs 99, 99, 1 are provided on both outer side surfaces at the center in the vertical direction of the groove 98.
01 and 101 are formed to protrude, and a rib 102 is also formed to protrude from the lower surface of the lower wall of the engagement groove 97. A breaker 9 is provided between the upper rib 99 and the inner wall of the engagement groove 96.
A nut plate 103 made of a steel plate is held along the outer surface of No. 3 and a nut plate 104 made of a steel plate is held between the upper rib 101 and the rib 102 along the outer surface of the breaker 93.

The lower end of the side plate 41 made of, for example, a thick plate of transparent acrylic resin is inserted into the groove 98 of the breaker 93 from above. The side plate 41 has a substantially mountain shape that is inclined such that the upper portions of the front and rear sides 41A and 41B are close to each other, and three through holes 106 are formed in a portion located immediately above the groove 98. Then, the side plate 4 at a position out of the groove 98
1 are angled members 111 and 112 each having a substantially L-shaped cross section.
Is provided. These angle members 111 and 112 penetrate the breaker 93 and are fixed to the breaker 93 with screws 113 and 114 screwed to the nut plates 103 and 104, respectively, and hold the side plate 41 from both sides. Then, the angle members 111 and 112 are brought close to each other by a screw 116 penetrating through the through hole 106, thereby clamping and holding the side plate 41 from both sides.

An inner cover 118 is mounted between the upper end of the inner angle member 111 and the inner plate 92, and a heater 119 is mounted on the inner surface of the inner cover 118. Further, a mounting plate 121 is screwed to the upper end of the outer plate 91, and a bumper 122 is engaged and fixed to the mounting plate 121. The bumper 122 covers the upper surface of the side wall 10 outside the side plate 41, and the upper end thereof is close to the side plate 41, but the angle member 112 slightly extends upward from between the bumper 122 and the side plate 41. . Reference numeral 123 denotes a tape of a water-absorbing fiber tablet attached so as to cover the screws 116 and 114, and a similar heater 119 is attached to the inner surface of the attachment plate 121.

As described above, according to the present invention, the pair of angle members 111 and 112 fixed to the side
Since the side plate 41 is sandwiched between the upper surfaces of the side plates and tightened from both sides, stress is less likely to concentrate on one portion of the side plate 41, and damage to the side plate 41 can be effectively prevented. Further, since the side plate 41 can be fixed on the upper surface of the side wall 10, the bending of the side plate 41 is reduced, and even when the groove 98 side of the breaker 93 is deformed, it can be easily corrected by sandwiching the sandwiching portion spacer. It becomes possible.

Further, a groove 98 for forming the side plate 41 is formed in the breaker 93, and the nut plate 10 for fixing the angle members 111 and 112 on the heat insulating material 94 side of the breaker 93.
Since grooves 3 and 104 are attached, the groove 98 can be formed without any trouble in filling the heat insulating material 94. In particular, breaker 9
Since the depth of the groove 98 is widened, the side plate 41 can be pushed into the depth of the groove 98 even if the upper portion or the center of the groove 98 is narrowed by the pressure at the time of filling the heat insulating material 94. become.

Further, even if an external force is applied to the bumper 122 to push the bumper 122 toward the side plate 41, the angle material 1
Since the bumper 122 does not directly contact the side plate 41 by contact with the side plate 12, damage to the side plate 41 can be effectively prevented. A stainless steel top plate 42 is also provided between the upper end portions of the side plates 41, 41 erected on the upper surfaces of the side walls 10, 10.
It is screwed from the side through.

The top plate 42 also 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, 44 are spaced apart from the lower surface of the top plate 42, and the front ends thereof are inclined downward downward substantially along the inclination of the front and rear sides 41A, 41B of the side plate 41, respectively. The portion is opposed to the upper support plate 44 at an interval.

The front and rear side surfaces 46A, 46A of the reflection plate 46
Are downwardly inclined downward with an interval below the upper support plates 44, 44, and the lower surface thereof is bent in a crank shape to form 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 The air heated by the stabilizer 52 is communicated with the upper surfaces of the upper support plates 44 and 44 and flows out to the upper surfaces of the upper support plates 44 and 44 as shown by arrows in FIG.

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.
On the other hand, cylindrical drain sockets 77, 77 opened on the upper and lower surfaces are attached to both sides of the breaker 4 in the longitudinal direction of the heat insulating box 2, and extend downward. A drain hose 78 is connected to the lower end of the drain socket 77 before filling the heat insulating material 7 and is buried in the heat insulating material 7 when the heat insulating material 7 is foamed and filled. On the breaker 4 in the longitudinal direction, a water receiving member 79 made of stainless steel, which is long to the left and right, is screwed to the outer box 3 of the heat insulating box 2 via an L-shaped mounting plate 82.

The water receiving member 79 has a rectangular container shape having an opening 83, and water receiving side drain ports 84, 84 are provided on both sides of a bottom surface 79A corresponding to above the drain sockets 77, 77. Are drilled. The stainless steel rail 6 is inserted into the water receiving member 79 from the opening 83.
3 is inserted. The rail 63 is formed in a substantially W-shape by welding three stainless steel plates, whereby a side surface 46A of the reflection plate 46, an inner rail surface 63A extending to the left and right facing the direction of 46A, The upper support plates 44, 4 parallel to the outside of the inner rail surface 63A.
Outer rail surfaces 63B facing in four directions are formed.

At this time, the entire lower portion (each rail surface 63A, 63B) of the rail 63, including its longitudinal ends, has entered the water receiving member 79, and the outer end plate 66 of the rail 63 is attached to the mounting plate. It enters the lower side of 82 and is fastened and fixed together with the mounting plate 82 and the water receiving member 79 with screws. The bumper 62 is engaged with the upper and lower ends of the mounting plate 82.

Each rail surface 63 of the rail 63
A and 63B are provided with three rail-side drain outlets 65 on the left and right at the lower end portions (pointed portions).
5 are all located in the water receiving member 79 (on the bottom surface 79A). The storage room 22 of the low-temperature showcase 1 is opened (openings 64, 64) between the rails 63, 63 and the top plate 42 in the front-rear direction.

On the inner and outer rail surfaces 63A, 63B of the rail 63, a plurality of sliding doors 73A, 73A, 73 made of transparent glass fitted in a sash.
B and 73B are slidably mounted and supported. in this case,
In the embodiment, eight doors 73A are arranged in front and rear of each of the two doors.
, 73B are supported, and the upper portions of the inner resin doors 73B, 73B supported on both sides of the inner rail surface 63A in the closed state are the side surfaces 46 of the reflection plate 46.
A is slidably supported by A. Further, in the closed state, the upper portions of the outer doors 73A, 73A which are supported by the central portion of the outer rail surface 63B and abut against each other are slidably supported by the upper support plate 44. Reference numeral 81 denotes a handle provided on the mating side of each door 73A and on the outer surface of each door 73B.

Here, the doors 73A and 73B are cooled by the cool air in the storage room 22, and dew condensation occurs on the outer surfaces exposed to the outside air. The condensed water flows down the outer surfaces of the doors 73A and 73B as shown by arrows in FIG.
3 flows into the respective rail surfaces 63A and 63B. The condensed water flowing into each of the rail surfaces 63A and 63B drops downward from the three rail-side drain holes 65 and is received by the water receiving member 79.

When the dew water received by the water receiving member 79 reaches a predetermined amount, it flows down by its own weight in the direction of the water receiving side drain ports 84, 84, drops from there to the drain sockets 77, 77, and is drained to the drain hose 78. Is discharged to the outside. With the above configuration, when the compressor and the blowers 19 and 31 are operated, the cool air cooled by the cooler 17 is blown rearward in the duct 12 from the inclined surface 13C, and the outlet 9A at the upper end of the duct plate 9 is discharged. Is discharged toward the upper part of the storage room 22 from the storage chamber 22. 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 cooled to a predetermined freezing temperature, for example, −20 ° C.

By the cooling operation, dew condensation occurs on the side plate 41. Such dew water is supplied to the bumper 1 as shown by the arrow in FIG.
It enters the inside of the mounting plate 121 from the gap between the angle member 22 and the angle member 112, and is absorbed by the tape 123. Tape 123
Is evaporated and diverged by the heat from the heater 119 when the condition of the surrounding air is improved. Dew condensation on the inside cover 118 and the bumper 122 is eliminated by the heater 119.

[0033]

As described above in detail, according to the present invention, a pair of angle members fixed to the heat insulating wall sandwich the side plate on the upper surface of the heat insulating wall and tighten it from both sides. It becomes difficult for stress to concentrate at the places, and it becomes possible to effectively prevent the occurrence of damage to the side plate. Also,
Since the side plate can be fixed on the upper surface of the heat insulating wall, the bending of the side plate is reduced, and even when the groove side is deformed, it can be easily corrected at the sandwiching portion.

Further, since a groove for inserting the side plate is formed in the breaker constituting the heat insulating wall, and a nut plate for fixing the angle material is attached to the heat insulating material side of the breaker, there is no problem in filling the heat insulating material. Grooves can be formed. Furthermore,
Since the inner part of the groove of the breaker is expanded, even if the upper part or the central part of the groove is narrowed by the pressure at the time of filling the heat insulating material, the side plate can be pushed into the inner part of the groove.

According to the second aspect of the present invention, even when the bumper is pressed against the side plate by an external force applied thereto, the bumper does not directly contact the side plate by contacting the angle material, thereby effectively preventing the side plate from being damaged. Can be prevented.

[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 an upper vertical sectional side view of the low-temperature showcase of the present invention.

FIG. 4 is an enlarged vertical sectional side view of an opening of the low-temperature showcase of the present invention.

FIG. 5 is a sectional view of an upper portion of a side wall of the low-temperature showcase of the present invention.

FIG. 6 is a perspective view of a side plate portion of the low-temperature showcase of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Low-temperature showcase 2 Insulated box 3 Insulated wall 10 Side wall (insulated wall) 41 Side plate 91 Outer plate 92 Inner plate 93 Breaker 94 Insulating material 98 Groove 103, 104 Nut plate 111, 112 Angle material 122 Bumper

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-179677 (JP, A) JP-A-3-110370 (JP, A) JP-A-53-49151 (JP, U) JP-A-48-48 26211 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) F25D 23/06

Claims (2)

(57) [Claims] And 1. A heat insulating wall heat insulating material is foam filled, and the upper surface on the opening groove formed in this insulating wall, and the side plate having a lower end provided upright on the insulating wall upper surface is inserted into the groove , Holding the side plate on the upper surface of the heat insulating wall, tightening from both sides, and having a pair of angle members fixed to the heat insulating wall, the heat insulating wall is an outer plate, an inner plate, and a top end between these. And a heat insulating material filled in a space formed by these, and a groove for inserting a side plate is formed in the breaker, and the heat insulating material side of the breaker is formed on the breaker. Is a low-temperature showcase in which a nut plate to which an angle member is fixed is attached, and a groove is widened at the back. 2. A heat insulating wall foamed and filled with a heat insulating material, a groove formed in an upper surface of the heat insulating wall, and a side plate having a lower end inserted into the groove and standing upright on the heat insulating wall. A pair of angle members fixed to the heat insulating wall while clamping the side plate on the upper surface of the heat insulating wall, and attaching a bumper for covering the heat insulating wall upper surface outside the side plate; A low-temperature showcase characterized in that an angle member is extended upward from a gap between the angle plate and the side plate.