JP2016156517A - Reach-in type showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reach-in type showcase of which the slide door can be smoothly closed at all the time by preventing door end rails from colliding with partition walls of door pocket grooves even if the slide door is warped and deformed by a temperature difference between the inside and the outside of a storage.SOLUTION: In the reach-in type showcase, a seal structure is provided between opposing faces of door end rails 10 of a pair of left and right slide doors 4 which are guided by upper and lower guide frames 21 so as to be freely opened/closed by sliding, and a front door pocket groove 37a and a rear door pocket groove 37b which are formed in a pair of left and right side frames 22 and 23 and in which the door end rails 10 of the slide doors 4 in a closed state are accommodated. A groove center D of each of the door pocket grooves 37a and 37b is made eccentric to a front side from a door end center G of each of the slide doors 4. Between rear faces of partition walls 36 which are positioned at a front side of the front door pocket groove 37a and the rear door pocket groove 37b and front faces of the door end rails 10, an allowance space S is secured for absorbing forward warpage deformation of the slide doors 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a reach-in type showcase in which a pair of left and right slide doors are disposed in a front opening of a refrigerator compartment, and a seal structure is disposed between a door-end rod and a side frame of the slide door.

  This type of showcase is known from US Pat. The showcase disclosed in Patent Document 1 includes a pair of slide doors that are supported by an upper frame and a lower frame and can be opened and closed. The left and right frames (side frames) include a board extending in the front-rear direction, and three partition plates projecting at a predetermined interval in the front-rear direction in the front region of the board, and a sliding door between adjacent partition plates A storage groove (door pocket groove) is formed for receiving the. The seal structure is composed of a magnet packing attached to the closing frame piece of the sliding door and a magnetic metal plate attached to the bottom of the storage groove, and magnetic adsorption between the magnet and magnetic metal plate provided in the magnet packing The gap between the sliding door and the left and right frames is sealed by the action. The width dimension in the front-rear direction of the storage groove is set larger than the width dimension in the front-rear direction of the closing frame piece. The guide structure that guides the sliding door so that it can be opened and closed is composed of a guide groove on the upper frame and a protrusion on the lower frame. The center position of the front and rear width of the storage groove and the center of the front and rear width of the closing frame piece It is provided so that the position substantially coincides. Thereby, a closing frame piece is accommodated in the center part of the front-back direction of a storage groove.

JP 2007-75334 A (FIG. 5)

  A slide door of a showcase is often composed of a single-layer or multiple-layer glass plate and a door frame that supports the periphery of the glass plate, and the inside of the door frame shrinks due to the temperature difference between the inside and the outside of the warehouse. Warp deformation is likely to occur. Specifically, the center part of the whole vertical direction of the sliding door bulges and deforms to the outside of the warehouse. In particular, this warpage deformation is conspicuous in a slide door provided with a door frame formed of a plastic material in order to improve heat insulation.

  When the sliding door is closed from the open state with warping deformation as described above, the central part in the vertical direction of the closing frame piece collides with the tip of the front partition wall that partitions the storage groove and closes. The frame piece cannot be stored in the storage groove. Thus, if the closed state of the closing frame piece is incomplete, the magnet packing cannot be adsorbed to the magnetic metal plate, and cold air leaks from the gap between the magnet packing and the magnetic metal plate, causing the internal temperature to rise. Resulting in. In addition, the partition wall or the closing frame piece may be damaged in the event of a collision.

  Further, with respect to the structure of the partition wall and the closing frame piece, if the front and rear width of the storage groove is made sufficiently large or the front and back width of the closing frame piece is made sufficiently small, it is possible to avoid the closing frame piece from colliding with the partition wall. However, in the former case, there is a problem that the capacity of the showcase is reduced by the increase in the front-rear width of the storage groove, or the front-rear size of the showcase is increased. In the latter case, the structural strength of the door frame is reduced, and the door frame may be damaged when the sliding door is opened and closed.

The object of the present invention is to eliminate the collision of the door toe against the partition wall of the door pocket groove even when the sliding door is warped and deformed due to the temperature difference between the inside and outside of the cabinet, and the sliding door closing operation is always smooth. The purpose is to provide a reach-in showcase that can be used.
The object of the present invention is to properly accommodate the sliding door door toe in the door pocket groove even when the sliding door door and the side frame door pocket groove have the same size as before and after. The purpose of the present invention is to provide a reach-in showcase that can reliably perform its sealing function.

  In the present invention, a pair of left and right sliding doors 4 are guided to be freely opened and closed by an upper guide frame 20 and a lower guide frame 21 provided in an opening frame 19 provided in the front opening 3 of the showcase body 1. Three partition walls 36 project from the front and back of the opposing surfaces of the pair of side frames 22, 23 provided in 19, and the door-end fence of the sliding door 4 in the closed state is located between the adjacent partition walls 36, 36. A reach door-type groove 37a and a rear door-bag groove 37b are formed, and a reach-in type show in which a seal structure is provided between opposing surfaces of the door-end ridge 10 and the front door-bag groove 37a and the rear door-bag groove 37b. For cases. Each slide defined by the center of the front-rear width B of the door toe groove 10 is defined as the groove center D of each door-slot groove 37a, 37b defined by the center of the front-facing inner surface gap L between the front door pocket groove 37a and the rear door bag groove 37b. Slided between the rear surface of the partition wall 36 located on the front side of the front door bag groove 37a and the rear door bag groove 37b, and the front surface of the door head wall 10 by being biased to the front side of the door center G of the doors 4 and 4. A margin space S that absorbs warping deformation of the door 4 forward is secured.

  The flank 44 is provided on at least the front surface on the closed end side and the rear surface of the door toe 10, and the tip of the door toe 10 is formed in a tapered shape.

  A widened surface 45 is formed on the rear surface of the partition wall 36 located on the front side of each door pocket groove 37a, 37b so that the facing inner surface distance L of each door pocket groove 37a, 37b increases toward the tip of the partition wall 36. Configure.

  The seal structure includes a door packing 15 including a magnet 16 provided on the closed end face of the door end fence 10, and a suction plate 40 made of a magnetic metal plate attached to the groove bottom 39 of the front door bag groove 37a and the rear door bag groove 37b. Configure.

  In the present invention, the groove center D of each of the door pocket grooves 37a and 37b defined by the center of the opposing inner surface distance L before and after the front door bag groove 37a and the rear door bag groove 37b is set at the center of the front and rear width B of the door toe bag 10. The rear surface of the partition wall 36 located on the front side of the front door bag groove 37a and the rear door bag groove 37b, biased to the front side from the door center G of each of the sliding doors 4 and 4 defined, In the meantime, a margin space S for absorbing the warp deformation of the sliding door 4 forward was secured. According to this, the warp deformation of the sliding door 4 can be absorbed by the margin space S when the door toe door 10 enters the front door bag groove 37a and the rear door bag groove 37b. Therefore, even when the sliding door 4 is warped and deformed due to a temperature difference between the inside and outside of the cabinet, the door end fence 10 is prevented from colliding with the partition walls 36 of the front and rear door pocket grooves 37a and 37b, and the sliding door 4 is closed. The operation can always be performed smoothly. Further, for example, even if the front and rear sizes of the door toe 10 of the slide door 4 and the door pocket grooves 37a and 37b of the left and right side frames 22 and 23 are the same as the conventional one, the warp of the slide door 4 by the margin space S is possible. The deformation can be absorbed, and the door toe cage 10 can be properly accommodated in the front door pocket groove 37a and the rear door pocket groove 37b, and the sealing function by the seal structure can be surely exhibited.

  When the flank 44 is provided on at least the front surface and the rear surface on the closed end side of the door toe wall 10 and the front end portion of the door toe wall 10 is formed in a tapered shape, the front-rear width of the door end wall 10 at the closed end surface portion B can be reduced, and it is possible to eliminate the collision of the door toe 10 with the partition wall 36 as much as the front-rear width B is reduced, and the sliding door 4 can always be closed smoothly.

  A widened surface 45 is formed on the rear surface of the partition wall 36 located on the front side of each door pocket groove 37a, 37b so that the facing inner surface distance L of each door pocket groove 37a, 37b increases toward the tip of the partition wall 36. Configured. According to this, it is possible to further eliminate the collision of the door toe 10 against the partition wall 36 by the extent that the facing inner surface distance L of each door pocket groove 37a, 37b is widened, and the closing operation of the sliding door 4 can always be performed smoothly. .

  When the seal structure is configured by the door packing 15 including the magnet 16 and the suction plate 40 made of a magnetic metal plate, the sliding door 4 can be held in a closed state by the magnetic suction action of the magnet 16 and the suction plate 40. Thereby, when the sliding door 4 is in the closed state, the degree of warpage deformation of the sliding door 4 is changed, and the door packing 15 is adsorbed even when the vertical center of the sliding door 4 is displaced back and forth. Following the contact with the plate 40, the gap between the slide door 4 and the side frames 22 and 23 can be reliably sealed to prevent the outflow of the internal air.

It is a cross-sectional top view which shows the state in which the door toe of the showcase which concerns on this invention is accommodated in the door pocket groove. It is a front view of a showcase. It is a vertical side view of a showcase. It is a vertical side view of a slide door part. It is a cross-sectional top view which shows a slide door part. It is explanatory drawing which shows the state which the sliding door warped and deformed.

(Example) FIGS. 1-6 shows the Example of the reach-in type showcase which concerns on this invention. In the present embodiment, front and rear, left and right, and up and down follow the arrows shown in FIGS. 2 and 3 and the front and rear, left and right, and top and bottom displays written in the vicinity of each arrow. As shown in FIGS. 2 and 3, a refrigerator compartment 2 is provided inside the showcase body 1, and the front opening 3 can be slid open and closed by a pair of left and right sliding doors 4. A plurality of shelf boards 5 are arranged inside the refrigerator compartment 2, and a beverage container, for example, is placed on the shelf board 5 to be cooled. A machine room 6 is disposed below the showcase body 1 and houses a compressor CP, a condenser C, a blower fan F1, and the like. Moreover, the evaporator E is arrange | positioned in the upper part in the refrigerator compartment 2, and the air in the refrigerator compartment 2 supplied with the fan F2 in a warehouse is cooled.

  As shown in FIG. 2 and FIG. 4, the slide door 4 includes a door body 8 made of a multilayered plate glass and a door frame 9 fixed to the four peripheral edges of the door body 8. The door frame 9 connects a door-end fence 10 disposed on the door-end side, a door-end fence 11 disposed on the door-end side, the upper ends of the door-end fence 10 and the door-end fence 11, and the lower ends thereof. The upper rod 12 and the lower rod 13 are configured. The door toe 10 is formed in a substantially rectangular shape with a transverse cross-sectional shape, and a handle 14 is formed on the front surface thereof so as to project a finger when the sliding door 4 is opened and closed (see FIG. 1). A door packing 15 having a rod-like magnet 16 disposed therein is provided on the closed end surface of the door end rod 10 over the entire length in the vertical direction. A pair of left and right rollers 17, 17 that support the slide door 4 are disposed on the lower rod 13, and the roller 17 reduces sliding resistance when the slide door 4 is opened and closed. The pair of rollers 17, 17 are arranged so as to be positioned at the front-rear center of the lower rod 13. The door end fence 10, the door end fence 11, the upper fence 12, and the lower fence 13 constituting the door frame 9 are each formed of an extrusion-molded product made of plastic in order to improve the heat insulation of the slide door 4. In this embodiment, the strip material obtained by extrusion molding of vinyl chloride is cut and processed into a predetermined shape. The door frame 9 has the upper and lower ends of the door tips and the bottom of the doors 10 and 11 in the state where the door body 8 is fitted in the fixing groove of each of the doors 10, 11, 12 and 13. 13 is fixed with screws.

  As shown in FIG. 2, an opening frame 19 is provided in the front opening 3 of the showcase body 1. The opening frame 19 includes an upper guide frame 20 and a lower guide frame 21, and a pair of left and right side frames 22 and 23. The pair of left and right sliding doors 4 and 4 are guided by an upper guide frame 20 and a lower guide frame 21 so as to be slidable. As shown in FIG. 4, the upper guide frame 20 includes a horizontal fixed wall 25, three support walls 26 extending downward from the front and rear ends and the center of the fixed wall 25, and a horizontal direction from the lower end of each support wall 26. And a guide wall 27 extending in a cross section, the cross section is formed in a substantially horizontal E shape. The gap formed between the adjacent guide walls 27 and 27 is set to be slightly larger than the front / rear width of the upper lid 12 of the slide door 4. The wall 27 is slidably guided through a slight clearance.

  On the front surface of the support wall 26 at the center and the rear side, an uneven surface 28 for receiving the dew condensation water generated on the support wall 26 is formed. On the guide wall 27 located below the uneven surface 28, a flange wall 29 is formed so as to protrude upward. In the case where the concavity and convexity 28 cannot be received and the condensed water overflows from the concavity and convexity 28, the condensate overflowing from the flange 29 is received and drained through the side frames 22 and 23. Although not shown, a seal tongue piece is provided at the upper front edge of each slide door 4, and a seal tongue piece is provided between the front surface of each slide door 4 and the support wall 26 positioned on the front side of the slide door 4. To prevent outflow of the internal air in the upper guide frame 20 portion.

  As shown in FIG. 4, the lower guide frame 21 includes a horizontal U-shaped fixed wall 31 fixed to the front opening 3, and three seal walls extending from the front and rear of the fixed wall 31 and from the center upward. 32 is integrally provided. A pair of guide rails 33 and 33 project from the upper surface of the fixed wall 31 between the adjacent seal walls 32 and 32, and the roller 17 of the sliding door 4 is guided to travel by the guide rails 33 and 33. . Although not illustrated, the lower tongue 13 of the sliding door 4 is provided with a seal tongue piece, and the gap between the lower collar 13 and the seal wall 32 is sealed with the seal tongue piece, and the lower guide frame 21 portion This prevents the outflow of air in the cabinet.

  The left and right side frames 22 and 23 are configured to be different from each other. As shown in FIG. 5, the left side frame 22 and the right side frame 23 are provided so as to project inward from the opposing wall 35 facing the door rod 10 of the sliding door 4, the front and rear of the opposing wall 35, and the center. And three partition walls 36 are provided. The partition wall 36 is composed of a front partition wall 36a, a middle partition wall 36b, and a rear partition wall 36c, and accommodates the door toe 10 of the sliding door 4 in the closed state between the adjacent partition walls 36 and 36. A front door bag groove 37a and a rear door bag groove 37b are formed. The front and rear door pocket grooves 37a and 37b are formed in parallel so as to open inward. The front door pocket groove 37a is partitioned by the front partition wall 36a and the middle partition wall 36b, and the rear door pocket groove 37b is formed by the middle partition wall 36b. And a rear partition wall 36c. The front and back facing inner groove distances L of the front door pocket groove 37a and the rear door bag groove 37b are set to be the same, and are formed to be larger than the front and rear width B of the door toe wall 10. The rear partition wall 36c is formed shorter than the front partition wall 36a and the middle partition wall 36b, and an L-shaped fixed wall 38 fixed to the front opening 3 is integrally provided on the rear surface of the rear partition wall 36c. It has been. The door rod 10 of the right slide door 4 disposed on the front side is accommodated in the front door bag groove 37a of the right side frame 23, and the door rod 10 of the left slide door 4 disposed on the rear side is the left side. Is accommodated in the rear door bag groove 37b.

  A seal structure is provided between the facing surfaces of the door toe 10 and the front door bag groove 37a and the rear door bag groove 37b. The seal structure is composed of the door packing 15 provided on the closed end face of the door toe 10 described above and the magnetic metal suction plate 40. The adsorbing plate 40 is made of a magnetically adsorbable stainless steel plate, and accepts the door-end rod 10 of the sliding door 4 in the closed state, and the rear door bag groove 37b of the left side frame 22 and the front door bag groove 37a of the right side frame 23. Is arranged. A fixing rib 41 is protruded from the inner surface of each partition wall 36a, 36b, 36c, and the suction plate 40 is fixed to the groove bottom 39 by the fixing rib 41. When the slide door 4 is closed, the seal structure is arranged inside the front door groove 37a and the rear door groove 37b, so that the seal structure is prevented from being exposed on the front surface of the showcase and the design of the showcase is improved. ing.

  The upper guide frame 20 and the lower guide frame 21 included in the opening frame 19 and the left and right side frames 22 and 23 are each formed of an extruded product made of plastic. In this embodiment, vinyl chloride is extruded. The strip obtained by molding is cut and processed into a predetermined shape.

  The door frame 9 of the slide door 4 in a normal state (a state in which no warp deformation has occurred) is linear in a side view as shown by an imaginary line in FIG. However, the door frame 9 made of vinyl chloride is shrunk on the inner side due to the temperature difference between the cooled low-temperature inside air and the outside air at room temperature, and as shown by a solid line in FIG. The warp deformation in which the center portion of the slide door 4 in the vertical direction bulges outward occurs.

  In order to eliminate the collision of the door-end rod 10 of the sliding door 4 in which the warp deformation as described above collides with the front ends of the front partition wall 36a and the middle partition wall 36b (partition wall 36), the front door groove 37a and the rear The groove center D of each door pocket groove 37a, 37b defined by the center of the opposing inner surface interval L before and after the door pocket groove 37b is the door of each sliding door 4, 4 defined by the center of the front / rear width B of the door rod 10. A front partition wall 36a positioned on the front side of the front door pocket groove 37a, a rear surface of the middle partition wall 36b positioned on the front side of the rear door pocket groove 37b, and a front surface of the door-end fence 10; In the meantime, a margin space S for absorbing the warp deformation forward of the slide door 4 is secured (see FIG. 4). The guide centers of the upper guide frame 20 and the lower guide frame 21 that guide the slide door 4 are made to coincide with the center of the front-rear width B of the door rod 10 of the slide door 4.

  As shown in FIG. 1, flank surfaces 44 each having a flat inclined surface are provided on the front and rear surfaces of the door end fence 10 on the closed end side. Thereby, the front-end | tip part of the door-end rod 10 is formed in a tapered shape, and the front-rear width B of the closed end surface portion of the door-end rod 10 is set smaller than other portions. As a result, when the door-end fence 10 enters the front door pocket groove 37a and the rear door pocket groove 37b, the door-end fence 10 has the front partition wall 36a as much as the front-rear width B of the closed end surface of the door-end fence 10 is reduced. And it can eliminate colliding with the front-end | tip of the middle division wall 36b. In addition, the flank 44 should just be provided in the front surface of the front-end | tip side of the door rod 10 and the at least front surface of a rear surface.

  As shown in FIGS. 1 and 5, a widening surface 45 formed of a flat inclined surface is formed on the rear surface of the front partition wall 36 a and the front and rear surfaces of the middle partition wall 36 b. By forming the widened surface 45, the opposing inner surface distance L of each door pocket groove 37a, 37b is configured to increase toward the tip. As a result, when the door toe 10 enters the front door pouch groove 37a and the rear door pouch groove 37b, the door toe 10 is placed at the front ends of the front partition wall 36a and the middle partition wall 36b by an amount corresponding to the increase in the opposing inner surface interval L. The collision can be resolved. The widening surface 45 may be formed on the rear surfaces of the front partition wall 36a and the middle partition wall 36b.

  As described above, according to the reach-in type showcase that secures the marginal space S that absorbs the warp deformation forward of the slide door 4, when the door-end fence 10 enters the front door pocket groove 37a and the rear door pocket groove 37b. Furthermore, the warp deformation of the slide door 4 can be absorbed by the margin space S. Accordingly, even when the sliding door 4 is warped and deformed due to a temperature difference between the inside and outside of the cabinet, the door end fence 10 is prevented from colliding with the front partition wall 36a and the middle partition wall 36b of the front and rear door pocket grooves 37a and 37b. The closing operation of the sliding door 4 can always be performed smoothly. Further, for example, even if the front and rear sizes of the door toe 10 of the slide door 4 and the door pocket grooves 37a and 37b of the left and right side frames 22 and 23 are the same as the conventional one, the warp of the slide door 4 by the margin space S is possible. The deformation can be absorbed, and the door toe cage 10 can be properly accommodated in the front door pocket groove 37a and the rear door pocket groove 37b, and the sealing function by the seal structure can be surely exhibited.

  Since the front and rear surfaces of the door end rod 10 are provided with relief surfaces 44 and the tip of the door end rod 10 is formed in a tapered shape, the front and rear width of the closed end surface of the door end rod 10 is reduced. Therefore, it is possible to eliminate the collision of the door toe 10 with the front partition wall 36a and the middle partition wall 36b, and the sliding door 4 can be always closed smoothly.

  A widened surface 45 is formed on the rear surface of the front partition wall 36a located on the front side of each door pocket groove 37a, 37b and the front and rear surfaces of the middle partition wall 36b, and the opposing inner surface distance L of each door pocket groove 37a, 37b is set to the partition wall 36. Since the distance between the opposing inner surfaces L of the door pocket grooves 37a and 37b is increased, the door-end ridge 10 can be further prevented from colliding with the partition wall 36, and the sliding door 4 can be eliminated. The closing operation can be performed smoothly.

  Since the seal structure is configured by the door packing 15 including the magnet 16 and the suction plate 40 made of a magnetic metal plate, the sliding door 4 can be held in a closed state by the magnetic suction action of the magnet 16 and the suction plate 40. Thereby, when the sliding door 4 is in the closed state, the degree of warpage deformation of the sliding door 4 is changed, and the door packing 15 is adsorbed even when the vertical center of the sliding door 4 is displaced back and forth. Following the contact with the plate 40, the gap between the slide door 4 and the side frames 22 and 23 can be reliably sealed to prevent the outflow of the internal air.

  In the above-described embodiment, the front / rear width B of the door toe cage 10 is formed to be substantially constant, but the front / rear widths other than the portions accommodated in the door pocket grooves 37a, 37b may be increased to form a stepped shape. . The door tip center G of the slide door 4 in this case is defined by the front and rear centers of the door tip cage 10 of the portion accommodated in the door pocket grooves 37a and 37b. The guide position in the front-rear direction of the slide door 4 is made to substantially coincide with the groove center D of each door pocket groove 37 a, 37 b so that the door center G of the door toe 10 is located behind the guide position of the slide door 4. You may comprise. The flank surface 44 and the widened surface 45 do not need to be formed with a flat inclined surface, and may be formed with a concave arc surface or a convex arc surface. The seal structure uses the magnetic adsorption action of the door packing 15 provided with the magnet 16 and the adsorption plate 40, but the seal structure is based on the close contact between the packing made of an elastic body and the wall surface, or the concave / convex fitting between the concave and convex portions. It may be a seal structure.

DESCRIPTION OF SYMBOLS 1 Showcase main body 3 Front opening part 4 Sliding door 10 Door end fence 15 Door packing 16 Magnet 19 Opening frame 20 Upper guide frame 21 Lower guide frame 22 Side frame 23 Side frame 36 Partition wall 37a Front door bag groove 37b Rear door bag groove 39 Groove Bottom 40 Adsorbing plate 44 Flank 45 Wide surface B Front-to-back width D Front door groove groove and rear door groove groove center G Sliding door door center S Margin space L Front door groove groove and front door groove groove Internal spacing

Claims (4)

A pair of left and right sliding doors (4) can be opened and closed by an upper guide frame (20) and a lower guide frame (21) provided in an opening frame (19) provided in a front opening (3) of the showcase body (1). Is guided to
Three partition walls (36) project from the front and back of the opposing surfaces of the pair of side frames (22, 23) provided in the opening frame (19), and between the adjacent partition walls (36, 36), A front door pocket groove (37a) and a rear door pocket groove (37b) for accommodating the door-end rod (10) of the sliding door (4) in the closed state are formed,
It is a reach-in type showcase in which a seal structure is provided between the facing surfaces of the door toe bag (10) and the front door bag groove (37a) and the rear door bag groove (37b),
The groove center (D) of each door pocket groove (37a, 37b) defined by the center of the front inner groove distance (L) before and after the front door groove (37a) and the rear door groove (37b) The front side of the front door groove (37a) and the rear door groove (37b) is biased to the front side of the door center (G) of each sliding door (4.4) defined by the center of the front and rear width (B) of Between the rear surface of the partition wall (36) located at the front and the front surface of the door toe (10), a marginal space (S) for absorbing the warp deformation to the front of the sliding door (4) is secured. Reach-in type showcase featuring   The flank (44) is provided on at least the front surface of the closed end side and the rear surface of the door toe (10), and the tip of the door toe (10) is formed in a tapered shape. The reach-in showcase described.   A widening surface (45) is formed on the rear surface of the partition wall (36) located on the front side of each door pocket groove (37a, 37b), and the interval between the opposing inner surfaces (L) of each door pocket groove (37a, 37b) is defined as the partition wall. The reach-in type showcase according to claim 1 or 2, wherein the reach-in type showcase is configured to expand toward the tip of (36).   The seal structure is arranged at the door packing (15) having a magnet (16) provided on the closed end face of the door-end rod (10), and at the groove bottom (39) of the front door bag groove (37a) and the rear door bag groove (37b). The reach-in type showcase according to any one of claims 1 to 3, comprising a suction plate (40) made of a magnetic metal plate.

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