JP2736755B2 - Shelf support structure for refrigerated showcases - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerated showcase, and more particularly to a support structure for a shelf plate.

[0002]

2. Description of the Related Art Conventionally, in a refrigerated showcase, a cold air circulation passage is formed by closing a bottom of a refrigerator.
A bottom plate, which is the lowest shelf on which products are placed, is removably attached and removed, so that the cold air circulation passage can be inspected and cleaned.

[0003] In such a refrigerated showcase, a wire rack is mounted on a bottom plate in order to change the height and angle in the refrigerator in accordance with the product to be placed. The wire rack is apt to bite and cause damage. In addition, when inspecting a blower or the like daily or cleaning the bottom of the cool air circulation passage, it is troublesome to remove both the wire rack and the bottom plate.

In order to solve these problems, Japanese Patent Publication No.
In the refrigerated showcase described in JP-A-11970, the front and rear ends of a metal wire rack are inserted into rack holes of a front plate portion of a partition plate located at a front portion of a storage room and a back plate portion of a partition plate located at a back portion. , And the bottom plate is placed on the wire rack so that goods can be placed on the bottom plate, and the bottom plate can be removed and inspected via the wire rack.

[0005]

However, this prior art has a configuration in which the bottom plate is merely mounted on a metal wire rack, so that when changing the angle of the bottom plate or removing the wire rack, the bottom plate must be mounted. After lifting and removing the wire rack, it was necessary to change the angle of the wire rack and remove the wire rack twice. Also, check the blower,
At the time of cleaning the bottom of the cool air circulation passage, it took time to remove both the bottom plate and the wire rack.

Further, since the bottom plate is formed by bending a thin iron plate to form a box, the strength is not sufficient.
It is configured to be integrated with the wire rack to maintain strength. Therefore, when placing a heavy object, there is a problem that the strength must be increased by increasing the number of wires in the wire rack or increasing the wire diameter.

[0007] The rack holes are drilled as a set of two. At least one set of rack holes is drilled in the front plate portion, and the back plate portion has the same height as the rack holes in the front plate portion. In addition to a set of rack holes being drilled at the same height, a plurality of rack holes are drilled upward at equal intervals.

When the bottom plate is locked by selecting the rack holes of the same height, the bottom plate is mounted horizontally, and the locking holes in the back plate are changed to the locking holes drilled in the upper stage and locked. For example, the bottom plate can be attached with the rear portion inclined at a high angle, and can be displayed effectively according to the type and quantity of the product.

However, as the locking holes in the back plate are made higher, the distance between the rack holes becomes longer, the length of the wire rack becomes insufficient, and the wire rack must be replaced with a longer wire rack. It is uneconomical.

The present invention overcomes the above-mentioned problems of the prior art, and provides a support structure for a shelf board in a refrigerated showcase that does not use a wire rack, can be easily attached and detached, and can easily change an attachment angle. The purpose is to do.

[0011]

According to the present invention, the above-mentioned problem is solved as follows. (1) A pair of left and right through holes are formed in each of the hanging pieces hanging down from the front and rear edges of the shelf, and a reinforcing rod pointing in the front-back direction is fixed between the hanging pieces on the lower surface of the shelf. A shaft hole and a long hole extending in the front-rear direction are formed before and after the side wall of the reinforcing rod located inside the left and right through holes, and the shaft hole and the long hole have a substantially U-shape. Side rods extending in the front-rear direction from both ends of the intermediate connecting portions of the supporting rods are fitted into the through-holes of the hanging pieces, respectively. By penetrating, one support rod is fixed to the shelf, and the other support rod is mounted on the shelf so as to be slidable in the front-rear direction,
The shelf is supported in the showcase by locking the ends of the side rods of the support rods projecting outwardly from the front and rear hanging pieces into locking holes formed in the inner wall of the showcase.

(2) In the above item (1), each reinforcing rod has an upward U-shape, and the side rod portion of each supporting rod is accommodated therein.

(3) In the above item (1) or (2), the shaft hole and the long hole are formed by cutting below the upper edge of the inner side wall of the reinforcing rod.

(4) In any one of the above items (1) to (3), a downward engaging member which can be engaged with a locking hole formed in an inner wall of the showcase is provided at a tip end of a side rod portion of each support rod. A stop projection is provided.

[0015]

According to the present invention, at least one of the pair of supporting rods held by the hanging piece of the shelf and the reinforcing rod is
Since it is slidable in the front-rear direction, the support rod is advanced and retracted from the shelf plate, and the tip end thereof is locked in a locking hole formed in the inner wall of the showcase, so that the shelf plate can be tilted at an arbitrary inclination angle. Can be installed in the showcase.

[0016]

FIG. 1 is a longitudinal sectional view of a refrigerated showcase to which the present invention is applied. As is apparent from FIG. 1, a refrigerated showcase with an open front has a heat-insulating box-like shape. A cool air circulation passage (3) is provided between the outer wall (1) and the inner wall (2). The cool air circulation passage (3) is located at the upper front outlet (6).
Then, cool air is blown out from here toward the suction port (8) at the lower part of the front to form a cool air curtain on the front of the refrigerated showcase.

The warmed cold air collected together with the surrounding air from the suction port (8) at the lower part of the front surface is defined between the bottom of the outer wall (1) and the bottom plate (7) which is the lowest shelf. From the portion of the cool air circulation passage (3), the air is passed through the heat exchanger (5) by the blower (4), and the temperature of the cool air is lowered again.
(3) It is circulated upward as indicated by the arrow.

The bottom plate (7) has a front end of the support rod (15) in front of the bottom plate (7), and a locking hole (8) formed in a rear wall (9) of a suction port (8) forming a front plate of the inner wall (2). 17b) and the rear support rod (15)
The rear end of the bottom plate (7) is fitted by fitting it into one of a plurality of vertically aligned locking holes (17a) drilled in the rear plate (10) of the inner wall (2). See Figure 2 below for details
Will be described with reference to FIG.

As shown in FIG. 2, the bottom plate (7) is a box-shaped member having a downwardly open box-shaped member formed by bending four sides of a metal plate at right angles to form a hanging piece (11). The front and rear hanging pieces (11) and (11) facing each other have circular through holes (1
2) (12) are drilled in parallel.

On the lower surface of the bottom plate 7, a pair of front and rear support rods (1) formed by bending a metal wire in a U-shape in a front-reverse direction is formed.
5) is disposed, and the left and right side rods (15a) of each support rod (15) are
It is fitted in through holes (12) (12) formed in the front and rear hanging pieces (11). The diameter of the support rod (15) is commensurate with the diameter of the through hole (12), and the intermediate connecting part that connects the left and right side rods (15a) faces the lower surface of the bottom plate (7) in the left-right direction. It is arranged.

The support rods (15) (1)
5) From below, a gutter-shaped reinforcing rod with a substantially U-shaped cross section (13) (13)
And fixed to the lower surface of the bottom plate (7) by spot welding, so that each support rod (15) located in the bottom plate (7) is
(15a). Circular shaft holes (16) are provided near the front end and rear end of the inner surface (19) of these reinforcing rods (13).
And the long hole (18) long in the front-rear direction, respectively, the inner surface (19)
It is formed by cutting from the upper edge. Front shaft hole (1
6), the intermediate connecting portion (15b) of the front support rod (15) is fitted so as to be movable in the front-rear direction, and the rear intermediate connecting portion (15b) is fitted in the rear slot (18). It is fitted so that it can slide in the direction.

As a result, the front support rod (15) is
And the shaft hole (16) is fixedly locked, but the rear support rod (15) is guided by the through hole (12) and the long hole (18),
It can slide in the front-rear direction, so that the external length of the rear support rod (15) can be changed. Each support rod (15)
A downward pin-shaped locking projection (14) is protruded from the distal end of the side rod (15a).

The supporting rods (15) (1) reinforced by the reinforcing rods (13)
As shown in FIG. 1, the bottom plate (7) to which 5) is attached can be attached to the bottom of the refrigerated showcase so as to define a part of a cool air circulation passage downward. That is, first, the front support rod (15) is
(8) Fully pass through the locking hole (17b) formed in the rear wall (9), and then insert the rear support rod (15) into the rear plate of the inner wall (2).
It is inserted into one of a plurality of vertically aligned locking holes (17a) formed in (10), and the locking projections (14) are hooked on the locking holes (17a) to be stopped.

At this time, since the outer length of the rear support rod (15) can be changed within a range allowed by the long hole (18), any one of the plurality of locking holes (17a) arranged vertically is selected. Thus, any forward leaning posture can be obtained. In addition, assuming that the bottom plate (7) is reversed in the front-rear direction to the above, the external length of the front support rod (15) is variable, and the rear support rod (15) is fixed to the bottom plate (7), It may be attached to the bottom of the showcase.

The present invention can be applied not only to the support structure for the bottom plate, which is the lowermost shelf plate as described above, but also to the support structure for a shelf plate disposed above it. In this case, instead of the rear wall (9), a pipe-shaped or plate-shaped support rod is erected between both side plates of the showcase, and the front end of the support rod is inserted into a locking hole formed in the rear surface. Should be locked.

[0026]

According to the present invention, the support rod is inserted into the through-hole protruding from the hanging piece at the front and rear portions, is connected by the reinforcing rod, and is integrated with the shelf plate. Can be removed upward from the showcase together. Therefore, there is no need to remove the shelf board and then remove the support member.

Further, since the reinforcing rod used as a mounting member for the supporting rod is fixed to the lower surface of the shelf, the strength of the shelf is remarkably improved, and there is no problem even when a heavy object is placed.

Further, since one of the support rods fits the intermediate connecting portion into the elongated hole of the reinforcing rod and can move back and forth along the elongated hole, the length of the support rod can be extended by pulling out the support rod. ,
Even if the distance between the front and rear locking holes on the inner wall of the showcase is long, such as when you want to increase the forward tilt angle of the shelf, you can extend the length of the support rod and extend the shelf In addition, the tiltable range of the shelf can be increased.

According to the second aspect of the present invention, if the reinforcing rods are formed in an upward U-shape and the side rods of the support rods are accommodated therein, the side rods are exposed on the lower surface of the shelf. This prevents a part of the cooling device from being caught thereon or causing turbulence in the cool air, and when the shelf is arranged above, the appearance of the shelf from below can be improved. .

According to the structure of the third aspect, the work of assembling the shelf plate, the support rod, and the reinforcing rod is simplified, and the productivity is increased.

With the configuration as described in claim 4, it is possible to prevent the shelves from falling off the showcase during an earthquake or the like.

[Brief description of the drawings]

FIG. 1 is a vertical side view of a refrigerated showcase to which the present invention is applied.

FIG. 2 is a perspective view of a bottom plate which is a lowermost shelf plate in the refrigerated showcase.

[Explanation of symbols]

 (1) Outer wall (2) Inner wall (3) Cool air circulation passage (4) Blower (5) Heat exchanger (6) Outlet (7) Bottom plate (shelf) (8) Suction port (9) Rear wall (10) Rear plate (11) Hanging piece (12) Through hole (13) Reinforcing rod (14) Locking projection (15) Supporting rod (15a) Side rod (15b) Intermediate connecting part (16) Shaft hole (17a) (17b ) Lock hole (18) Slot (19) Inner surface

Claims (4)

(57) [Claims] 1. A pair of left and right through-holes is formed in each of the hanging pieces hanging down from the front and rear edges of the shelf, and a reinforcing rod pointing in the front-rear direction is provided between the hanging pieces on the lower surface of the shelf. And a shaft hole and a long hole extending in the front-rear direction are formed before and after the side wall of the reinforcing rod located inside the left and right through holes, and the shaft hole and the long hole are substantially U-shaped. A pair of front and rear support rods, each of which has a pair of supporting rods that are fitted in the left and right direction and that extends in the front-rear direction from both ends of the intermediate connecting part of each of the supporting rods, is provided with a through hole of the hanging piece. , So that one support rod is fixed to the shelf, and the other support rod is attached to the shelf so as to be slidable in the front-rear direction, and protrudes outward from the front and rear hanging pieces. By locking the end of the side rod part of each supporting rod into the locking hole drilled on the inner wall of the showcase, And a shelf plate in the refrigerated showcase, wherein the shelf plate is supported in the showcase. 2. The support structure for a shelf plate in a refrigerated showcase according to claim 1, wherein each reinforcing rod has an upward U-shape, and a side rod portion of each supporting rod is accommodated therein. 3. The support structure for a shelf board in a refrigerated showcase according to claim 1, wherein the shaft hole and the long hole are formed by cutting inward from an upper edge of an inner side wall of the reinforcing rod. 4. A projection according to claim 1, wherein a downward locking projection which can be engaged with a locking hole formed in an inner wall of the showcase is protruded from a tip portion of a side rod portion of each support rod. The support structure of the shelf board in the refrigerated showcase of the description.