JP2013169320A - Cover device for showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover device for a showcase which attains convenience in purchasing a merchandise by opening a cover covering a showcase opening part when a customer is in front of a showcase, and saves power consumption by closing the opening part with the cover to prevent the loss of cool air inside the showcase when a customer is not in front of the showcase.SOLUTION: A cover device for a showcase includes: a cover 135 for opening/closing the opening part 170 of a showcase 100; and a drive device 130 for opening/closing the cover 135. A proximity sensor 120 is connected to the drive device 130 via a controller. The proximity sensor 120 senses whether a customer is present or not in front of the showcase 100. Then the drive device is operated to open/close the cover.

Description

  The present invention relates to a cover device for a showcase, and more particularly to a cover device for a showcase that sells refrigerated / frozen foods. The sensor detects when the customer approaches the showcase and opens the cover so that the product can be purchased easily.After the end of business, the opening of the showcase is closed with the cover to prevent the loss of cool air. The present invention relates to a cover device for a showcase.

In supermarkets, convenience stores, general stores, and the like, foods that require refrigeration / frozen storage are usually stored and sold in display shelf type open showcases that are equipped with refrigeration / frozen functions.
Such a showcase has a problem in that a loss of cold air is extremely consumed because a front surface is always open so that a customer can easily take a product.
In particular, when there is no customer at midnight in a 24-hour convenience store, if the front of the showcase is open, it causes a loss of cold air as described above, which is a factor of wasteful power consumption. In addition, it has become a factor that hinders the maintenance of the in-store temperature.

  In order to solve this problem, there is a glass window installed in front of the showcase. However, this product is very inconvenient to use because customers need to open and close the glass window every time they purchase a product.

  Further, in the case of a supermarket or the like, in order to prevent the loss of cold air, it is considered that the opening of the showcase is covered with a blind cover (night cover) after the store is closed. However, this is also a large store and the store clerk has to cover all the showcases one by one.

Registered Utility Model No. 3058051 (paragraph “0005”, FIG. 2)

  The present invention solves the above-mentioned problems. When the customer is not in front of the showcase, the opening of the showcase is closed with a cover to prevent the loss of cool air in the showcase and the power consumption. To provide a showcase cover device that opens the cover and opens the opening of the showcase when the customer is in front of the showcase so as to make it easier for customers to purchase. Is. It is another object of the present invention to provide a showcase cover device that simplifies and simplifies the work of a store clerk covering a showcase opening with a cover after the store is closed.

  The present invention includes a cover that opens and closes an opening of a showcase, and a drive device that is attached to the showcase and opens and closes the cover, and a proximity sensor that is connected to the drive device via a controller is provided. The cover is opened and closed by operating the driving device in relation to sensing.

  In addition, the present invention uses a tubular motor having a cover wound around a driving tube as a driving device, installs a proximity sensor so that the angle can be adjusted, or sets a timer so that the driving device operates at a predetermined time. , A switch for switching the operation of the drive device to automatic or manual, or a transparent cover.

  The present invention is configured as described above, and when there is no customer in front of the showcase, the opening of the showcase is closed with a cover to prevent loss of cool air inside the showcase and reduce power consumption. When there is a customer in front of the showcase, the cover of the showcase opening is opened so that the customer can easily purchase without disturbing the customer's purchase of goods. Further, since the opening of the showcase can be automatically closed with the cover after the store is closed, the cover work for the store clerk can be reduced and the efficiency can be improved.

It is one Example of this invention, Comprising: It is the schematic which shows through the inside of a showcase. It is an enlarged side view of the A part of FIG. It is a disassembled perspective view of a drive device part. It is a block diagram which shows the aspect which controls opening and closing of a cover.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
As shown in FIG. 1, a drive device 130 that operates a cover 135 that opens and closes an opening 170 on the front surface of the showcase is attached to the frame 110 of the showcase 100 that can be refrigerated.
In the embodiment, a tubular motor 132 is used as the driving device 130. The tubular motor 132 is attached to the showcase 100 by inserting and supporting support shafts 133 having a square cross section provided at both ends thereof into support holes 137 having a square cross section of the bracket 131 fixed to the frame 110.

A cover 135 is wound around the driving tube 134 of the tubular motor 132. When the tubular motor 132 is driven, the cover 135 is unwound and unwound by forward and reverse rotation of the driving tube 134, and the opening 170 of the showcase is opened and closed by the cover 135. In this case, if the shaft 136 is provided at the front end portion of the cover 135, the shaft 136 serves as a weight to prevent the cover from slackening, and the cover can be wound more smoothly.
The tubular motor 132 and the driving tube 134 are accommodated in the casing 138.

  The cover 135 is formed of a plastic material or other material in a single layer, a laminate (laminate) or the like. If the cover 135 is made transparent, the product in the showcase is seen through even when the cover 135 is closed. And can easily know the display position of the product.

  A proximity sensor 120 is attached to the upper part of the frame 110 of the showcase 100, and when the customer 180 approaches the showcase 100 and enters the operating range of the sensor, the proximity sensor 120 detects the presence of the customer 180. . This sensing signal is transmitted to the tubular motor 132 via the controller 140. As a result, the tubular motor is activated, and the cover 135, which is normally closed, is opened, so that shopping is facilitated.

  When there is no customer 180 in front of the showcase 100, the proximity sensor 120 is not sensed, so that the tubular motor 132 is operated under the control of the controller 140, and the cover 135 is closed. Since the opening 170 of the showcase 100 is closed in this manner, the outflow of cool air in the showcase 100 is prevented, and loss of power consumption can be prevented, thereby saving power. Further, at that time, the cool air is not unnecessarily discharged into the store, so that the temperature management in the store is not adversely affected.

The proximity sensor 120 is rotatably attached to a bracket 121 fixed to the showcase 100 so that the angle of the proximity sensor 120 can be adjusted. This angle adjustment makes it possible to distinguish between a customer who approaches the showcase 100 in order to purchase a product and a customer who simply passes in front of the showcase 100.
In this example, the proximity sensor 120 and the support part of the bracket 121 are frictionally joined to adjust the angle by holding the proximity sensor 120 at a predetermined position, but the support part is ratchet type. Alternatively, the angle may be adjusted by rotating the support shaft of the proximity sensor 120 with a motor, a geared motor, or the like.

  In the embodiment, an infrared sensor is used as the proximity sensor 120. However, other sensors such as a capacitance type, an ultrasonic type, and an electromagnetic type can be used.

  This apparatus is provided with a changeover switch 150 for driving the tubular motor 132 automatically or manually, and this changeover switch is controlled by the controller 140. With this changeover switch 150, when it becomes necessary for the store clerk to put in and take out the product, the cover 135 can be opened and closed by switching to manual operation.

  In addition, the apparatus is provided with a timer 160 that operates the tubular motor 132 in a predetermined time zone regardless of the operation of the proximity sensor 120, and the timer 160 is controlled by the controller 140. Therefore, for example, if the timer is set so that the tubular motor 132 does not operate during the time period from closing to opening, the cover 135 will not open even if the proximity sensor 120 detects a person during that time. The cool air in the showcase is not discharged wastefully.

  This device is not limited to the form shown above.For example, a geared motor with a brake or a motor with a speed reducer is used as a drive device, a power button is separately provided, a drive device or the like is used. The operation can be remotely controlled, and the design can be changed as appropriate.

  100 Showcase 120 Proximity sensor 130 Drive device 132 Tubular motor 134 Driving tube 135 Cover 140 Controller 150 Changeover switch 160 Timer 170 Opening

Claims (6)

  A cover that opens and closes the opening of the showcase and a drive device that is attached to the showcase and opens and closes the cover are provided with a proximity sensor that is connected to the drive device via a controller. The showcase cover device is characterized in that the drive device is operated to open and close the cover.   The showcase cover device according to claim 1, wherein a tubular motor is provided as a driving device, and a cover is wound around a driving tube of the tubular motor.   The showcase cover device according to claim 1, wherein the proximity sensor is provided so that the angle can be adjusted.   The showcase cover device according to any one of claims 1 to 3, wherein a timer is provided so that the drive device operates at a predetermined time.   The cover device for a showcase according to any one of claims 1 to 4, further comprising a switch capable of switching the operation of the driving device to automatic or manual.   The showcase cover device according to any one of claims 1 to 5, wherein the cover is formed to be transparent.

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