JPH035829Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is installed in an open show case equipped with a refrigeration device, and is stretched outside the air curtain at the opening of the open show case at night. , relates to a cover for an open show case for suppressing leakage of cold air from the open show case.

(Prior art) Conventionally, as this type of cover, there have been covers in which the cover body is prestressed so that it can be easily rolled back.
It is known from the publication No. 51583.

(Problem to be solved by the invention) However, since a cover that has been prestressed in this way must be maintained in a stretched state for a long time, such as at night, the effectiveness of the prestress gradually decreases with long-term use. There was a problem in that the power was weakening, making it difficult to turn it back on its own. The object of the present invention is to provide a cover for an open show case that solves this problem.

(Means for Solving the Problems) In order to achieve the above object, the cover for an open show case of the present invention is made by folding a flexible synthetic resin sheet in half vertically and then folding it into a small diameter sheet around the fold line. A cover body 1 that is prestressed to be rolled back; and a winding auxiliary sheet 2 of a required length that is superimposed on the upper end of the expanded cover body 1 and is prestressed to the same extent as the upper end of the cover body. , a mounting body 5 which has a storage part 3 for the cover body 1 in a rolled-up state by fixing the upper ends of the cover body 1 and the auxiliary sheet for rolling back 2, and is fixed to the upper edge of the opening of the show case 4; A reinforcing member 6 attached to the lower end of the cover body 1 in an extended state
and a locking member 7 which is attached to the reinforcing member 6 and is detachable from the lower edge of the opening of the cover case 4 when the cover body 1 is in the extended state.

Here, the auxiliary winding sheet 3, which is superimposed on the upper end of the cover main body 1 and subjected to the same prestress as the upper end of the cover main body 1, is formed by folding back the edge of the synthetic resin sheet of the cover main body 1. It may be provided integrally with the cover body 1, or a synthetic resin sheet separate from the cover body 1 may be provided overlappingly.

The length of the unwinding auxiliary sheet 2 is preferably such that when it is stretched out, it slightly protrudes from the storage section 3 of the cover main body 1 in the fixture 5, as shown in FIG.

Note that the cover body 1 may be provided with a large number of small holes 14 etc. in order to ventilate the inside and outside of the cover body 1 and prevent dew condensation on the inner surface of the cover body 1.

(Function) In the cover for an open show case of the present invention, the unwinding auxiliary sheet 2, which is superimposed on the upper end of the cover main body 1 and subjected to the same prestress as the upper end of the cover main body 1, can withstand long-term use. Even if the cover main body 1 deteriorates its own winding ability, it can be surely turned back by reinforcing them.

(Example) Examples will be described with reference to the drawings.

First, the case 4 has a front opening type and is equipped with a refrigeration device (not shown). Next, the cover body 1 is made by slightly folding back the upper side of a flexible, elastic, and moisture-resistant synthetic resin sheet such as polyethylene terephthalate, and then folding it in half vertically. It is formed by prestressing the center by rolling it back to a small diameter. The folded part of the upper side of the sheet is prestressed while overlapping with the upper edge of the sheet, so the folded part is prestressed to be rolled back in the same direction as the upper edge of the sheet. It is used as the return auxiliary sheet 2. The mounting body 5 has a base plate 8 at its upper end that is fixed to the top surface of the upper edge of the opening of the show case 4, a rear plate 9 facing downward at the rear end of the base plate 8, and an inner surface of the rear plate 9. It has a groove 10 that is open at the lower end, and furthermore, at a lower position of the rear plate 9, there is a gutter-shaped groove that extends downward from the rear side of the groove 10 and then gradually curves forward and has its tip directed diagonally upward. It has a storage part 3 in which the cover main body 1 in a rolled-up state can be placed from the front side into the recessed part of the upper surface thereof. The cover main body 1 and the unwinding auxiliary sheet 2 are wrapped around the core plate 11 with their upper ends overlapped, and the core plate 11 is inserted into the groove 10 of the mounting body 5 and secured by riveting. It is worn. The lower side of the cover body 1 is wrapped around the core plate 12, and is fitted into a groove inside the reinforcing member 6 and fixed thereto. An annular locking member 7 is integrally fixed to the reinforcing member 6. The locking tool 7 is detachably attached to a hook member 13 fixed to the side surface of the lower edge of the opening of the show case 4 when the cover main body 1 is extended.
The cover body 1 is provided with a large number of small holes 14 scattered in order to ventilate the inside and outside of the cover body 1 and prevent condensation on the inner surface of the cover body.

(Effects of the invention) Since the present invention is constructed as described above, even if the prestressing effect of the cover body itself weakens due to long-term use, its effect is reinforced by the unwinding auxiliary sheet. The cover can withstand use for a longer period of time, and has significantly improved durability compared to the above-mentioned known example.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the case being attached to the show case and extended to cover the opening;
The figure is a cross-sectional view of the main part in the extended state, and FIG. 1...Cover body, 2...Rewinding auxiliary sheet, 3...Storage section, 4...Show case, 5...
Mounting body, 6... Reinforcing member, 7... Locking tool.

Claims (1)

[Scope of utility model registration request] A cover body 1 is formed by folding a flexible synthetic resin sheet in half vertically and then rolling it back to a small diameter around the fold line to give prestress, and the upper end of the cover body 1 in an extended state overlaps to form a cover. Storage of the cover main body 1 in the rolled-up state with the upper ends of the cover main body 1 and the upper ends of the unwinding auxiliary sheet 2 fixed to the required length of the auxiliary winding sheet 2 that has been given the same prestress as the upper end of the main body. a mounting body 5 having a section 3 and fixed to the upper edge of the opening of the cover case 4; a reinforcing member 6 mounted to the lower end of the cover main body 1 in an extended state; When the body 1 is extended, the case 4
A cover for an open show case comprising a detachable locking tool 7 at the lower edge of the opening.