JP2007075336A - Night cover winding apparatus for open showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a night cover winding apparatus for an open showcase, wherein even a long cover can be wound and pulled out. <P>SOLUTION: The night cover winding apparatus for an open showcase comprises: a pair of bearings which are fitted to a pair of shafts at both ends rotatably; a winding pipe which is fixed to the bearings of both ends and has a masked curtain so that it can be winded up; a pair of fixed shafts fixed to the leading ends of the shafts at both ends; a pair of springs which has both ends connected with the bearings or the winding pipe and the fixed shafts respectively and energizes the bearings and the winding pipe in the direction to roll up; and a connecting mechanism which connects the pair of fixed shafts and can slide to both fixed shafts. The connecting mechanism is, preferably, a movable joint pipe which is fitted inside or outside of the fixed shaft so that it can slide along it. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a night cover winding device for an open showcase. More specifically, the present invention relates to a night cover winding device for an open showcase that can be smoothly wound and pulled out even if it is long.

The night cover for an open showcase is a cover for energy saving that covers the front of the showcase for the purpose of preventing the dissipation of cold heat from the closing of the store to the opening of a showcase of frozen foods such as a supermarket. It is usually stored in a storage member in a rolled state and attached to the top or bottom of the showcase. After closing the store, it is pulled out from the storage member to cover the front of the showcase, thereby preventing the dissipation of cold heat during closing at night. (For example, Patent Document 1).
Because the large open showcase is wide, it is divided into several blocks and covered with a night cover. However, there is a problem that cold heat is dissipated at the border, and there are many showcases in large supermarkets, etc., and there is a problem that manpower is required for drawing and winding up.

In a night cover winding device, a night cover is generally attached to a winding pipe that is rotatably supported at both ends, and the winding pipe is generally biased in a winding direction by a spring mechanism. . However, in the case of a long night cover, especially when the fabric of the cover is soft and the tension is low, stress concentrates in the center of the winding pipe when it is pulled out, and it becomes difficult to wind up or wind up. It was impossible. In addition, the take-up pipe is heavy, and the support portions at both ends are distorted due to stress, which eventually damages the bearing portion.
JP 2005-69648 A

  An object of the present invention is to provide a night cover winding device for an open showcase that can be smoothly wound and pulled out even in the case of a long length. In particular, it is to provide a night cover winding device for an open showcase having a width of 1800 mm or more, especially 2400 mm or more.

The object of the present invention is achieved by the following night cover winding device for an open showcase.
1. A pair of bearings that are rotatably fitted to a pair of shafts at both ends, a winding pipe that is fixed to the bearings at both ends and that can wind up a shielding curtain, and a pair of fixings that are fixed to the shaft ends of both ends The shaft comprises a pair of springs whose ends are respectively connected to a bearing or a winding pipe and a fixed shaft, and urges the bearing and the winding pipe in the winding direction, and a connection mechanism that connects the pair of fixed shafts. The mechanism is an open showcase night cover winder that can slide on both fixed shafts.
2. The winding device according to 1 or 2, wherein the coupling mechanism is a movable joint pipe that is slidably fitted or fitted on a fixed shaft.
3. The winding device according to 1 or 2, wherein the movable joint pipe includes a plurality of pipes fitted inside and outside.

  In the night cover winding device of the present invention, the shafts at both ends are connected by the connecting mechanism, and as a result, the strength is increased, and even when the cover is pulled, there is almost no bending of the winding pipe so that it exceeds 1800 mm or 2400 mm. Even in the case of a long length, the drawer can be smoothly performed. Furthermore, since the fixed shaft is connected by a slidable movable joint pipe, when assembling, the fixed shaft is extended and exposed from the take-up pipe and attached to the shaft, and after installation, it is contracted and fixed in the take-up pipe. Because it is possible, it is excellent in workability.

1 is a perspective view of a night cover winding device for an open showcase according to an embodiment of the present invention, and FIG. 2 is a front view thereof.

  The shafts 1a and 1b at both ends are fixed to the bracket 10 attached to the frame with screws. On each shaft, pipes 2a and 2b as fixed shafts are externally fitted and fixed so as to face each other inward. The fixing method may be a known method such as external fitting, internal fitting, screwing, or pinning.

Bearings 3a and 3b are rotatably fitted to the shafts 1a and 1b at both ends, and a winding pipe 4 is fixed to the bearings. One end of the shielding curtain 5 is attached to a winding pipe, and the other end is provided with a support bar 12. In FIG. 1, the winding pipe 4 and the shielding curtain 5 are shown cut for easy understanding of the structure.
Reference numerals 6a and 6b denote springs, the outer ends of which are fixed to a bearing or a winding pipe, the inner ends are fixed to plugs 7a and 7b, and the plugs are fixed to a fixed shaft by pins. The springs 6a and 6b urge the bearing and the winding pipe in the winding direction. When the support bar 12 is pulled, the winding pipe 4 rotates against the elasticity of the springs 6a and 6b, the curtain 5 is pulled out, and when it is opened, the shielding curtain is wound by the elasticity of the spring.

  Both ends of the movable joint pipe 8 are slidably fitted to the distal end portions of both fixed shafts 2a and 2b, and both fixed shafts are connected. When connected in this way, the winding device can be assembled very easily. That is, when connecting the shafts at both ends with a single fixed shaft, the fixed shaft must be attached to one shaft, then inserted into the take-up pipe, and then the other shaft must be attached. This is done in the take-up pipe, and is extremely difficult to do and almost impossible when pinned. However, in the present invention, since the movable joint pipe 8 slides on the fixed shafts 2a and 2b, the distance between the two fixed shafts can be freely increased to some extent, so that the fixed shafts 2a and 2b and the movable joint pipe 8 It is possible to extend the entire shaft composed of the above, and to expose the end portion from the winding pipe. Therefore, it is easy to attach the shaft to the end portion.

  In FIGS. 1 and 2, the movable joint pipe 8 is externally fitted to the fixed shafts 2 a and 2 b, but may be internally fitted. The number of movable joint pipes may be one, but a plurality of movable joint pipes may be slidably fitted inside and outside.

  Since the night cover winding device for an open showcase according to the present invention is configured as described above, assembly is easy. Further, the strength of the take-up pipe is further reinforced by the entire shaft constituted by the fixed shaft and the movable joint pipe, and the take-up pipe is less bent, so that the take-up can be smoothly performed. Therefore, the night cover take-up device of the present invention is particularly suitable for a long length of 1800 mm or more, particularly 2400 mm or more.

It is a perspective view of the night cover winding apparatus for open showcases of the Example of this invention. It is a front view of the night cover winding apparatus for open showcases of the Example of this invention.

Explanation of symbols

1a, 1b Shaft 2a, 2b Fixed shaft 3a, 3b Bearing 4 Winding pipe 5 Night cover 8 Movable joint pipe

Claims (3)

  A pair of bearings that are rotatably fitted to a pair of shafts at both ends, a winding pipe that is fixed to the bearings at both ends and that can wind up a shielding curtain, and a pair of fixings that are fixed to the shaft ends of both ends The shaft comprises a pair of springs whose ends are respectively connected to a bearing or a winding pipe and a fixed shaft, and urges the bearing and the winding pipe in the winding direction, and a connection mechanism that connects the pair of fixed shafts. The mechanism is an open showcase night cover winder that can slide on both fixed shafts.   The winding device according to claim 1, wherein the coupling mechanism is a movable joint pipe that is slidably fitted or fitted on a fixed shaft. The winding device according to claim 1 or 2, wherein the movable joint pipe comprises a plurality of pipes fitted inside and outside.

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