JP2012075810A - Open showcase - Google Patents

Abstract

It is an object of the present invention to provide an open showcase in which condensation is unlikely to occur at an air curtain outlet and a honeycomb rectifier can be reliably held.
An air rectifier is held between front and rear walls of a cold air outlet that blows and forms a cold air curtain on the front surface of the case body through a cold air circulation duct defined between an outer box and an inner box of the case body. In the cold air circulation type open showcase, a resin-made locking member that holds the canopy portion 9 constituting the front wall of the cold air outlet and the ceiling panel front wall 11 of the outer box and holds the honeycomb rectifier 7 21 is provided.
[Selection] Figure 1

Description

  The present invention relates to a cold air circulation type open showcase, and relates to a mounting structure of a honeycomb rectifying body provided at an air curtain outlet that blows and forms a cold air curtain toward the front of the interior.

  First, FIG. 3 shows a configuration of a double-layer air curtain type multi-stage open showcase as the cold air circulation type open showcase described above.

  In FIG. 3, 1 is a case main body of an open showcase which becomes a heat insulating housing, and an inner / outer double is provided on the outer periphery of the inner box 1b between the outer box 1a and the inner box 1b made of a steel plate with an open front. The cool air circulation ducts 2 and 3 are defined, and the air curtain outlets 2a and 3a are connected to the cool air circulation ducts 2 and 3 on the upper front side of the case body 1, and the air curtain suction port 2b is connected to the lower side. , 3b are opened. A cooler 4 and a fan 5 are provided in the cool air circulation duct (inner duct) 2 in the inner layer, and a fan 6 is provided in the cool air circulation duct (outer duct) 3 in the outer layer.

  Further, a honeycomb rectifying body 7 is provided at the air curtain outlets 2a and 3a, and two layers of cool air curtains are blown out on the front surface of the inside of the cabinet through the honeycomb rectifying body 7 during the cold insulation operation to keep the inside of the cabinet cool. In addition, 8 is a merchandise display shelf, 9 is a canopy portion provided on the upper front surface of the case body 1, and the lamps 10 are respectively provided on the lower surface of the merchandise display shelf 8, the canopy portion 9, and the ceiling portion of the inner box 1b. ing.

  During the cold holding operation of the open showcase having such a structure, cold air is circulated through the inner duct 2 and the outer duct 3, and two layers are formed on the front opening of the case body 1 through the honeycomb rectifier 7 of the air curtain outlets 2a and 3a. A cold air curtain is blown out to cool the products displayed on the product display shelf 8 in the cabinet.

  An example of the mounting state of the honeycomb rectifier 7 is shown in FIG.

  The honeycomb rectifying body 7 is provided at the air curtain outlets 2a and 3a. However, the example of attachment of the honeycomb rectifying body 7 shown in FIG. 4 shows an example provided at the air curtain outlet 3a of the outer duct 3. The honeycomb rectifier 7 is provided between the ceiling panel front wall 11 and the partition plate 12 of the box 1a, and is substantially U-shaped on the end surface of the honeycomb rectifier 7 on the side opposite to the side on which the partition plate 12 is provided. A holding member 13 made of a wire having a protruding portion 13a and a handle 13b at the lower end is attached by bending and sandwiching the honeycomb rectifier from above and below. The honeycomb rectifying body 7 is held in the air curtain outlet 3a by providing and fitting the uneven portions (see, for example, Patent Document 1).

  A canopy portion 9 is formed so as to cover the front wall 11 of the ceiling panel and the outer box 1a, and a heater H is inserted inside the canopy portion 9 to prevent condensation of the canopy portion 9.

Japanese Patent Laid-Open No. 11-264646

  By the way, in the conventional structure shown in FIG. 4, the outer box 1a has a heat insulating material inside, and the outer side is covered with the steel plate. Both the inner wall and the canopy portion 9 forming the ceiling panel front wall 11 of the outer box 1a are made of steel plates, and are attached with their end surfaces folded inward and abutted against each other. In this case, heat conduction inside and outside the cabinet is likely to occur, and depending on the mounting state of the honeycomb rectifier 7, the ceiling panel front wall 11 is pushed forward, so the cabinet forming the ceiling panel front wall 11 of the outer box 1a. Since a gap is easily formed at the abutting portion between the inner wall and the canopy portion 9, there is a problem that even if the heater H is turned on, condensation is likely to occur.

  Moreover, since the holding member 13 of the honeycomb rectifying body 7 is only held between the recess 11a of the front wall 11 of the ceiling panel and the partition plate 12, there is a problem that it is easy to drop off.

  The present invention has been made to solve the above problems, and an object thereof is to provide an open showcase in which condensation is unlikely to occur at the air curtain outlet and the honeycomb rectifier can be reliably held. It is what.

  In order to achieve the above object, according to the present invention, before and after the cold air outlet that blows and forms a cold air curtain on the front surface of the case body through a cold air circulation duct defined between the outer box and the inner box of the case body. In a cold air circulation type open showcase that holds an air rectifier between walls, a resin engagement member that holds a canopy portion and an outer box constituting the front wall of the cold air outlet and holds a honeycomb rectifier A stop member is provided.

  The locking member includes an upper locking portion and a lower locking portion, holds a front panel wall made of a steel plate constituting an outer box at the upper locking portion, and is made of a steel plate at the lower locking portion. The canopy portion is held.

  The lower locking part is characterized by forming a groove part downward and sandwiching and holding the tip part bent at the upper part of the canopy part.

  The engaging member is folded in a substantially U shape to sandwich the honeycomb rectifier from above and below, and the concave portion and the U-shaped end surface of the holding member are placed at a position facing the convex portion of the holding member having the convex portion. And a mounting portion for forming the mounting portion.

  According to the present invention, the ceiling panel front wall forming the outer box and the canopy portion are held by the resin locking member, and the honeycomb rectifier is held by the locking member. In addition, it is possible to prevent dew condensation at the air curtain outlet due to a gap or the like.

  In addition, the engaging member is bent in a substantially U shape to sandwich the honeycomb rectifier from above and below, and a concave portion is formed at a position facing the convex portion of the holding member having a convex portion, and the U shape end surface of the holding member By forming the mounting portion that supports the bottom from the bottom, it is possible to reliably prevent the honeycomb rectifier from falling off.

Cross-sectional view of the air curtain outlet according to an embodiment of the present invention Expanded sectional view in FIG. Outline configuration diagram of a cold air circulation open showcase Cross-sectional view of a conventional air curtain outlet of an open showcase

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In the figure, members corresponding to those in FIG. 3 and FIG.

  1 and 2, a resin-made locking member 21 serving as a locking member for holding the canopy portion 9 and the ceiling panel front wall 11 and a locking member for holding the holding member 13 of the honeycomb rectifying body 7 is used. It is provided.

  The locking member 21 holds the upper side 11c and the vertical side 11b of the end face bent stepwise forward of the ceiling panel front wall 11 made of steel plate in the upper region so as to be sandwiched from the vertical direction and the front-rear direction. Therefore, an upper locking portion 21a divided into two sides, a concave portion 21b provided at a position corresponding to the convex portion 13a of the holding member 13 in a lower area of the upper locking portion 21a, and a honeycomb adjustment in a lower area of the concave portion 21b. It comprises a lower locking portion 21c provided to hold the fluid and hold the lower end edge 9a bent above the canopy portion 9 made of a steel plate.

  One side of the upper locking portion 21a of the locking member 21 includes a protruding portion 22a formed by bending the tip rearward and a vertical side 22b extending downward from the protruding portion 22a.

  The upper portion 11b of the ceiling panel front wall 11 is pressed from above by the protruding portion 22a, and the vertical side 11b extending downward from the upper side 11c is pressed from the front by the vertical side 22b of the upper locking portion 21a.

  On the other hand, the other side of the upper locking portion 21a of the locking member 21 is provided along the back side of the end surface that is bent stepwise forward of the ceiling panel front wall 11, and is a protrusion formed by bending the tip forward. It consists of a portion 23a, a substantially vertical side 23b extending upward from the protruding portion 23a, and an upper side 23c extending rearward.

  The vertical side 11c of the ceiling panel front wall 11 is sandwiched and fixed between the protrusion 23a and the vertical side 22b of the upper locking portion 21a, and the ceiling panel front wall 11 is fixed between the upper side 23c and the protrusion 22a. The upper side 11a is sandwiched and fixed.

  Next, the lower locking portion 21c of the locking member 21 is provided above the mounting portion 24a and the canopy portion 9 provided to hold the U-shaped end surface 13c of the holding member 13 of the honeycomb rectifying body 7 from below. And a groove portion 24b that opens downward and is provided so as to sandwich the lower end edge 9a that is bent.

  Next, one side constituting the groove portion 24b is provided with a protruding portion 24c whose front end is bent forward, and the lower end edge 9a of the canopy portion 9 is a gap between the protruding portion 24c and the other side of the groove portion 24b. Insert and fix it.

  Thus, the canopy portion 9 and the ceiling panel front wall 11 are held by the upper locking portion 21a and the lower locking portion 21c of the locking member 21.

  Next, for holding the honeycomb rectifying body 7, the concave portion 21b of the locking member 21 and the convex portion 13a of the holding member 13 of the honeycomb rectifying body 7 are combined, and the U-shaped end surface of the holding member 13 of the honeycomb rectifying body 7 is used. Position 13c on the mounting portion 24a of the locking member 21 for positioning.

  Further, the rear area of the honeycomb rectifier 7 is pressed by a partition plate 12 that divides the air outlet into the inside and outside. In order to attach the partition plate 12 to the inner panel 31, for example, end faces of the embossed portions 12 a and 12 b with screw holes that bulge in a trapezoidal shape are abutted back and forth, and a fixing screw 12 c is used between the two. The partition plate 12 is fixedly supported to the inner box by fastening.

  In this way, by holding the honeycomb rectifier 7 between the locking member 21 and the partition plate 12, in addition to the concavo-convex portion, the supporting portion 24a of the locking member 21 supports the structure from the lower side. Compared to the steel plate, the locking member 21 is made of resin, and the ceiling panel front wall 11 and the canopy portion 9 are held to prevent the steel plates from contacting each other. In addition, it is possible to prevent dew condensation at the air curtain outlet due to a gap or the like. Furthermore, even if pushed forward by the honeycomb rectifier 7, the canopy portion is sandwiched between the groove portions 24b of the locking member 21, so that no gap is generated.

DESCRIPTION OF SYMBOLS 1 Case main body 1a Outer box 1b Inner box 2a, 3a Air curtain outlet 7 Honeycomb rectifier 9 Canopy part 11 Ceiling panel front wall 12 Partition plate 13 Holding member 13a Convex part 13c End surface 21 Locking member 21a Upper locking part 21b Recessed part 21c Lower locking part 24a Placement part 24b Groove part 25 Projection part

Claims (4)

  Cold air circulation type that holds an air rectifier between the front and rear walls of the cold air outlet that blows out a cold air curtain on the front of the case body through a cold air circulation duct defined between the outer box and inner box of the case body In the open showcase, an open showcase comprising a resin locking member for holding a canopy portion and an outer box constituting a front wall of the cold air outlet and holding a honeycomb rectifier.   The open showcase according to claim 1, wherein the locking member includes an upper locking portion and a lower locking portion, and the upper locking portion holds a front panel wall made of a steel plate constituting an outer box. An open showcase characterized in that a steel plate canopy portion is held by the lower locking portion.   3. The open showcase according to claim 2, wherein the lower locking portion forms a groove portion downward and sandwiches and holds a tip portion bent at an upper portion of the canopy portion.   4. The open showcase according to claim 3, wherein the locking member is bent into a substantially U shape to sandwich the honeycomb rectifier from above and below, and has a concave portion at a position facing the convex portion of the holding member having a convex portion. An open showcase, wherein a mounting portion for mounting the U-shaped end surface of the holding member is formed.

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