JP2001161514A - Showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a showcase capable of producing inexpensively a plurality of kinds of sliding door rails having different length from each other. SOLUTION: A sliding door rail 20 is constituted of a pair of end rail members 21 and a central rail member 22. The end rail member 21 is formed of a injection molding parts and the central rail member 22 is formed of extruded molding parts. Hence, a plurality of kinds of sliding door rails 20 having different length can be produced by only two injection molds for the end rail members 21 and one extrusion mold for the central rail member 22 by molding the central rail member 22 to have an optional length.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase having a sliding door at a front opening of a showcase body.

[0002]

2. Description of the Related Art Conventionally, a showcase for freezing or refrigerated storage of articles is provided with a pair of left and right sliding doors for opening and closing a front opening of a showcase body as described in, for example, JP-A-6-32979. Are known. In this showcase, a sliding door rail extending in the width direction of the showcase body is provided below the front opening, and each sliding door is movably supported by the sliding door rail.

[0003]

By the way, in the above showcase, as shown in FIG. 8, right and left ends (only one end is shown) of the sliding door rail 1 are provided with a side wall 1a extending upward and an inclined portion 1b for drainage. Therefore, it cannot be formed by extrusion or the like so as to have a constant cross-sectional shape in a predetermined direction as a whole. Therefore, the sliding door rail 1 is generally integrally formed by injection molding of a synthetic resin or the like.

[0004] In some cases, a plurality of types of products having different dimensions in the width direction of the showcase are produced. In such a case, a plurality of types of sliding door rails having different lengths according to the width of the showcase are required. Becomes However, when molding the sliding door rail by injection molding as described above,
A mold for injection molding is required for each type of sliding door rail having different length dimensions. Therefore, when there are many types of sliding door rails, there is a problem that the cost required for the mold increases and the manufacturing cost is high. In addition, since it is difficult to form a long part by injection molding, there is a limit to the length of a sliding door rail that can be manufactured.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a showcase capable of inexpensively manufacturing a plurality of types of sliding door rails having different lengths. is there.

[0006]

In order to achieve the above object, according to the present invention, a pair of left and right sliding doors for opening and closing a front opening of a showcase body is provided. In a showcase to which a sliding door rail that supports a sliding door movably in the left-right direction is attached, the sliding door rail is provided between a pair of end rail members disposed at both ends in the moving direction of the sliding door, and each end rail member. The end rail member and the center rail member are formed so as to be connectable to each other. Thereby, even when the sliding door rail does not have a constant cross-sectional shape in the predetermined direction as a whole, by forming only the center side rail member of the sliding door rail to an arbitrary length, a plurality of types having different lengths can be provided. Can manufacture sliding door rails.

According to a second aspect of the present invention, in the showcase according to the first aspect, each of the end rail members is formed by an injection molded part, and the center side rail member is formed by an extrusion molded part. Thus, in addition to the function of claim 1, for example, a plurality of molds having different lengths only by a total of two injection molding dies for each end rail member and a total of one extrusion molding die for the center side rail member. It becomes possible to manufacture various types of sliding door rails.

According to a third aspect of the present invention, in the showcase according to the first or second aspect, the end rail members and the center side rail member are provided with engaging portions that engage with each other. Thereby, in addition to the operation of the first or second aspect, each end rail member and the center side rail member are securely engaged by each engagement portion.

According to a fourth aspect of the present invention, in the showcase of the first, second or third aspect, a ridge for engaging the sliding door extending in the moving direction of the sliding door is provided on the center side rail member, and the ridge is provided. Are formed so as to be located on the center side by a predetermined length from both ends of the center side rail member. Accordingly, in addition to the operation of the first, second or third aspect, since both ends of the ridge portion of the center side rail member are located at the center side by a predetermined length, the center side rail member and each end rail member. Is formed around the seam where no protrusions are present.

[0010]

1 to 7 show an embodiment of the present invention. FIG. 1 is an overall perspective view of a showcase, FIGS. 2 and 3 are partial perspective views of a sliding door rail, and FIG. FIG. 5 is a cross-sectional view in the direction of arrows AA in FIG. 4, FIG. 6 is a side cross-sectional view of a sliding door rail showing a state of attachment to a showcase,
FIG. 7 is a partial perspective view thereof.

A showcase 10 shown in FIG. 1 includes a showcase body 11 having an open front, and a showcase body 11.
And a pair of right and left transparent glass sliding doors 12 for opening and closing the front opening of the showcase body 11. The inside of the showcase main body 11 is cooled by a freezing device (not shown).

At the lower end of the front opening of the showcase body 11, a sliding door rail 20 for supporting each sliding door 12 so as to be movable in the left-right direction is mounted. The sliding door rail 20 includes a pair of end rail members 21 disposed on both left and right end sides thereof, and a center side rail member 22 disposed between the end rail members 21.
Is formed by a synthetic resin injection molded part, and the center rail member 22 is formed by a synthetic resin extruded part.

At one end of the end rail member 21, an upwardly extending side wall 21a and an inclined portion 21b for drainage which is inclined downward in the depth direction of the showcase body 1 are provided.
A front wall 21c is formed on the front end side. The other end of the end rail member 21 is provided with a coupling portion 21d with the center rail member 22, and an engagement piece 21e that engages with the center rail member 22 protrudes upward from the front end side. Has been established. Further, a screw hole 2 for fixing the end rail member 21 to the center side rail member 22 is formed in the coupling portion 21d.
1f is provided. Further, the inclined portion 21b and the connecting portion 2
A flat portion 21g that forms a uniform surface with the upper surface side of the center rail member 22 is formed between the flat portion 1d and the upper surface 1d. Although only the end rail member 21 at one end in the left-right direction is shown in the figure, a symmetric end rail member is provided at the other end.

The center side rail member 22 has a pair of ridges 22a extending in the left-right direction for engaging a sliding door at intervals in the front-rear direction. Each ridge 22a is located at the center between the ridges 22a.
A partition 22b extending along a is provided. A front wall portion 22c and a rear wall portion 22d are provided at both ends in the front-rear direction of the center side rail member 22, respectively.
An engagement groove 22e for receiving the engagement piece 21e of the end rail member 21 is provided on the lower surface side of 2c. Further, the center side rail member 22 has a screw hole 21 of the end rail member 21.
A screw insertion hole 22f corresponding to f is provided. Also, both ends of each ridge 22a, partition 22b, and rear wall 22d (hereinafter referred to as both ends of each ridge 22a, etc.) are located a predetermined length L from both ends of the center rail member 22 toward the center. It is formed so that it may be located. In this case, the center side rail member 22 is formed by the respective ridges 22 after extrusion molding.
Both ends 22a ', 22b', 22d '(broken lines in the figure) such as a are cut and removed by a length L.

In the sliding door rail 20, a screw 23 inserted into the screw insertion hole 22 f of the center rail member 22 is screwed into a screw hole 21 f of the end rail member 21, so that both ends of the center rail member 22 are provided. Each end rail member 2
1 are respectively fixed. At this time, the end rail member 21
The engagement piece 21e of the center groove 22e of the center side rail member 22
, The center rail member 22 and each end rail member 21 are securely connected. Also, both ends of each of the ridges 22a and the like of the center side rail member 22 have a predetermined length L, respectively.
Because it is formed so that it is located only on the center side,
A region where no protrusion exists is formed around the joint between the upper surface of the center rail member 22 and the upper surface of the end rail member 21, and the joint portion is covered from above by the sealant 24.

The sliding door rail 20 constructed as described above
Is attached to the front end of the bottom side heat insulating wall 11a of the showcase main body 11 as shown in FIG.
Each sliding door 12 is movably engaged with each of the ridges 22a. The sliding door rail 20 attached to the showcase main body 11 may be provided with a portion between the bottom surface in the showcase main body 11 as shown in FIG. 7 and the center side rail member 22 and each end rail member 21 as described above.
Is covered with a seal member 24 for preventing water leakage. Therefore, the dew water adhering to each sliding door 12 by the cooling operation of the showcase 10 flows into the showcase main body 11 through the inclined portion 21b of the sliding door rail 20, and a drain port (not shown) of the showcase main body 11. Drained to

As described above, according to the present embodiment, the sliding door rail 20 is composed of the pair of end rail members 21 and the center side rail member 22, and each of the end rail members 21.
Are formed by injection-molded parts, and the center-side rail member 22 is formed by an extrusion-formed part. 2 for the injection molding die 21 and 1 for the central rail member 22
A plurality of types of sliding door rails 20 having different length dimensions can be manufactured only by the extrusion molding dies. Therefore,
Even when there are many types of the sliding door rails 20, the cost required for the mold can be greatly reduced, and a long sliding door rail 20 can be manufactured by extrusion.

[0018]

As described above, according to the showcase of the first aspect, even if the sliding door rail does not have a constant cross-sectional shape in the predetermined direction as a whole, a plurality of types having different lengths are provided. Since the sliding door rail can be manufactured at low cost, it is extremely advantageous when producing a plurality of types of products having different dimensions in the width direction.

Further, according to the showcase of claim 2,
In addition to the effects of claim 1, for example, it is possible to manufacture a plurality of types of sliding door rails having different lengths by using only a total of two injection molding dies and a single extrusion molding die. Cost can be significantly reduced, and productivity can be improved.

Further, according to the showcase of claim 3,
In addition to the effect of claim 1 or 2, since each end rail member and the center side rail member can be securely connected,
The assemblability and durability of the sliding door rail can be improved.

Further, according to the showcase of claim 4,
In addition to the effects of the first, second, or third aspect, a range in which no protrusion exists around the seam between the center rail member and each end rail member can be formed, so that the seam portion is covered with a sealing material or the like. It is very advantageous in that case.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a showcase showing one embodiment of the present invention.

FIG. 2 is a partially exploded perspective view of a sliding door rail.

FIG. 3 is a partial perspective view of a sliding door rail.

FIG. 4 is a plan view of a sliding door rail.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a side sectional view of a sliding door rail showing a state of being attached to a showcase.

FIG. 7 is a partial perspective view of a sliding door rail showing a state of attachment to a showcase.

FIG. 8 is a partial perspective view of a sliding door rail showing a conventional example.

[Explanation of symbols]

10 ... showcase, 11 ... showcase body, 12 ...
Sliding door, 20: Sliding door rail, 21: End rail member, 22
... Central side rail member, 21e ... engaging piece, 22a ... protrusion 22a, 22e ... engaging groove.

Claims (4)

[Claims] 1. A showcase comprising a pair of left and right sliding doors for opening and closing a front opening of a showcase body, and a sliding door rail attached to a lower end of the front opening to support each sliding door movably in the left-right direction. The sliding door rail includes a pair of end rail members disposed on both ends in the moving direction of the sliding door, and a center rail member disposed between the end rail members. A showcase wherein rail members are formed so as to be connectable to each other. 2. The showcase according to claim 1, wherein each of the end rail members is formed by an injection molded part, and the center side rail member is formed by an extrusion molded part. 3. The showcase according to claim 1, wherein each of the end rail members and the center side rail member is provided with an engagement portion that engages with each other. 4. A ridge for engaging a sliding door extending in a moving direction of the sliding door is provided on the center rail member, and both ends of the ridge are respectively shifted toward the center by a predetermined length from both ends of the center rail member. 4. The showcase according to claim 1, wherein the showcase is formed so as to be positioned.