JPH0445018Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a show case in which a front opening is opened and closed by a pair of sliding doors, and a heater is disposed within a space formed by the upper stile of the sliding doors and the upper frame of the rail.

(Prior Art and Problems) A show case whose front opening is opened and closed by a pair of sliding doors and a heater is installed in the sliding doors to heat them has an opening at the front, as shown in the perspective view of Fig. 4. The opening of the show case body 1, which is formed into a box shape, is opened and closed by a pair of sliding doors 2, 2, . . . Normally, in this type of case, in order to prevent condensation or frost from forming on the surfaces of the glass 21, 21 of the sliding doors 2, 2 due to the temperature difference between the inside and the outside air, the upper stile of the sliding doors 2, 2 is 22, 22
In addition, a structure in which a heater is attached to the glass plates 21, 21 itself has been put into practical use.

Therefore, the sliding doors 2, 2, . . . are maintained at a temperature above the dew point, and dew condensation is prevented.

A power supply cord 5 is connected to the heater. Usually, this cord 5 is formed in a spiral shape, is exposed at the front of the show case body 1, and has a structure that expands and contracts as the sliding door 2 is opened and closed.

As a result, the cord 5 is visible from the front of the show case, which is not desirable from an external perspective, and when the door is closed, it is stretched, and when the door is open, it hangs downward due to its own weight and becomes bent, resulting in frequent opening and closing. Abrasion damage occurs in an extremely short period of time, causing accidents such as electrical leakage and disconnection.

(Means for Solving the Problems) The present invention was devised to solve the above problems, and the rail upper frame for guiding the sliding door at the opening has a substantially square cross section, and the rail upper frame The upper stile of the sliding door that is fitted into the sliding door has a roughly H-shaped cross section, and when the sliding door is closed, most of the supply cord that supplies power to the heater installed in the sliding door is inside the space formed by the rail upper frame and the upper stile. When the supply cord is in the open state, a part of the supply cord is stored in the space formed by the rail upper frame and the upper stile, and the other part is placed inside the rail upper frame. To provide a case that expands and contracts in response to the opening and closing of the case.

This prevents the cord from being exposed to the front and from hanging down. Furthermore, the decrease in durability due to wear and tear is also reduced, and as a result, accidents such as electrical leakage and disconnection can be prevented.

(Example) The show case of the present invention will be explained in detail below with reference to the drawings.

If no changes are required to the constituent members, the same numbers as those given in the description of the conventional example will be used in the description.

FIG. 1 is a partially omitted cutaway explanatory view of the show case for explaining the storage state of the supply cord 4, and FIG. 2 is a schematic cross-sectional view taken along the line A--A in FIG. 1.

The rail upper frame 3 provided on the main body 1 of the show case is formed into a substantially square cross section with a downward opening by an upper side 3a, side sides 3b, 3b, and middle side 3c. Inside the roughly shaped cross section are the upper frames 22, 22 of the sliding doors 2, 2.
are fitted, and the sliding doors 2, 2 have sides 3b, 3b,
It slides while being guided by the middle side 3c.

The upper stile 22 is formed into an H-shape with an upper opening by the side edges 22a, 22a.

Therefore, a space O is formed by the rail upper frame 3 and the upper stile 22 of the sliding door 2 fitted inside.

This space O is usually formed over the entire length of the rail upper frame 3 and the upper stile 22, but depending on the length of the supply cord 4, which will be described later, it may be formed over, for example, almost half of the sliding door 2. be.

A heater (not shown) is installed in the sliding doors 2 and 2 mentioned above.
is attached, and one end of a supply cord 4 is connected to this heater by passing through the upper frame 22, and the other end of the supply cord 4 is connected to a power line (not shown) passing through the rail upper frame 3. There is.

As shown in the perspective view of FIG. 3, this supply cord 4 extends a so-called curled power supply line 41 into a flexible cylindrical member 42 in its longitudinal direction.
It was covered and protected by

The supply cord 4 is fixed to the upper stile 22 by fixing the curled power wire 41 and the tube material 42 at one end of the supply cord 4 to a predetermined location on the upper stile 22, and also to the rail upper frame 3 in the same manner.

In the supply cord 4 having the above structure, the curled power wire 41 fixed to the upper stile 22, one end of the tube material 42, and the other end fixed to the rail upper frame 3 are pulled, or It is attracted and expands and contracts.

In other words, this supply cord 4 has an inner part formed by a curled power wire 41 and an outer part protected by a cylindrical member 42 having a flexible core material, so that it can be opened and closed sufficiently even if the so-called expansion and contraction frequency is high. The covering material of the curled power wire 41 and the flexible cylindrical material 4 are
2 itself will not be damaged.

(Effects) The show case having the above configuration has the following practical effects.

Since the supply cord is installed in the space formed by the rail upper frame and upper stile, it is not exposed in front of the opening of the main body and does not spoil the appearance of the show case.

The supply cord expands and contracts within the space almost parallel to the moving direction of the sliding door, and the supply cord itself expands and contracts sufficiently, so there is no damage to the covering material, and therefore there is no risk of electrical leakage or disconnection, making it safe. Highly sexual.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted broken explanatory diagram illustrating the show case of the present invention, and Fig. 2 is an A in Fig. 1.
3 is a perspective view showing a supply cord, and FIG. 4 is a perspective view showing a conventional show case. In the diagram, 1 is a show case, 2, 2 is a sliding door, 2
2 is the upper stile, 3 is the rail upper frame, 4 is the supply cord, 4
1 is a curled power supply wire, 42 is a cylinder member, and O is a space.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A show case whose front opening is opened and closed by a pair of sliding doors, a heater is disposed in the sliding doors, and the heating is performed by supplying power to the heater through a supply cord. The upper frame of the rail that guides the sliding door at the opening has a substantially square cross section, and the upper frame of the sliding door that is fitted into the upper frame of the rail has a substantially H-shaped cross section, and when the sliding door is in a closed state, Most of the supply cord is stored in the space formed by the rail upper frame and the upper stile, and when in the open state, a part of the supply cord is stored in the space, and the other part is stored in the space formed by the rail upper frame. A show case characterized in that the supply cord is arranged to expand and contract in response to the opening and closing of the sliding door so that it is located inside the sliding door. (2) The show case according to claim 1, wherein the supply cord is formed by housing a curled power wire within a flexible cylindrical member.