WO2014178629A1

WO2014178629A1 - Releasable automatic rotation door for showcase

Info

Publication number: WO2014178629A1
Application number: PCT/KR2014/003817
Authority: WO
Inventors: 권상우
Original assignee: Kwon Sang-U
Priority date: 2013-05-03
Filing date: 2014-04-30
Publication date: 2014-11-06
Also published as: KR101299479B1; JP2014217746A

Abstract

The present invention relates to an releasable automatic rotation door for a showcase comprising: multiple rotation curtains (30); a finish cap (40) fitted to upper portions of the rotation curtains (30); a fitting protrusion (41) mounted at the center of the finish cap (40); a driving gear (50) mounted on the fitting protrusion (41); a finish cap (40) fitted to lower portions of the rotation curtains (30); an upper frame (20) having multiple fitting holes (23) formed in a row, the rotation curtains (30) being assembled to the fitting holes (23) via fitting protrusions (41) of the finish cap (40) fitted to the upper portions; driving gears (50) mounted on the fitting protrusions (41) and positioned on the upper surface of the upper frame (20) in a row; both gear belts (60a) alternately meshing, in a wavy shape, above and below the multiple driving gears (50) installed in a row; a driving motor (63) installed inside the upper frame (20), the motor having a shaft connected to one driving gear (50) of the multiple driving gears (50), thereby endowing both gear belts (60a) with rotational force; a cover (26) mounted above the upper frame (20), a sensor (80) being mounted on the cover (26), wherein, as the driving motor (63) is activated in response to a sensing signal of the sensor (80), both gear belts (60a) simultaneously rotate the driving gears (50), which are mounted on the upper portions of the rotation curtains (30), in opposite directions, thereby opening/closing the rotation curtains (30) in opposite directions.

Description

Detachable automatic revolving door for showcase

The present invention relates to a door for a showcase. More specifically, by installing a detachable rotating door that automatically rotates according to the detection of the sensor on the front of the open showcase without a separate door, the inside of the showcase can be kept clean and fresh, and the power consumption is reduced. A removable automatic revolving door for showcase also useful for maintenance.

1 is a perspective view of a conventional open showcase. The open-type showcase is to display various types of beverages and foods that require refrigeration at a convenience store or bakery for a long time so that the fresh state is maintained, and the display shelf 11 is composed of two layers as shown in FIG. 1. The space 12 and the refrigeration system for generating cold air, as well as the machine room 13 that includes a configuration for maintaining the showcase, and the like.

The refrigeration system is a conventional configuration consisting of a compressor, a condenser, an expansion valve, a heat exchanger, and a refrigerant pipe interconnecting them. The refrigerant is repeatedly circulated to generate cold air, and the cold air is displayed at the upper display space 12 through a blower fan. To keep the freshness of the food on display.

In the conventional open showcase shown in FIG. 1, a sliding door is installed and spread on the front of the showcase 10, but the process of opening the door and removing the food is recognized as an inconvenience or annoying factor to the consumer. It is considered inappropriate to display food and beverages.

Therefore, in most convenience stores and bakeries, an open showcase without a door is installed to display beverages and foods requiring refrigeration. However, the open showcase has a problem in that the cooling air is not continuously preserved and is discharged to the outside, and there is a problem in that excessive cooling power consumption costs are spent, and as the outside dust flows into the showcase, fresh food is displayed. There is also the opinion that it is inappropriate to do this.

Therefore, the present invention was devised in view of the above problems, and protects fresh instant foods and various beverages displayed inside the showcase from dust flowing from the outside, and displays them more freshly. The State wants to provide a removable automatic revolving door for the showcase to prevent cold air from spilling out of the showcase excessively.

As a specific problem solving means of the detachable automatic rotating door for a showcase according to the present invention, a plurality of rotating membranes 30 are provided, and a closing cap 40 is fitted to an upper portion of the rotating membrane 30, and the closing cap ( The fitting protrusion 41 is mounted to the center of the fitting 40, the driving gear 50 is mounted to the fitting protrusion 41, and the closing cap 40 is fitted to the lower portion of the rotating membrane 30. 30 are assembled to the fitting hole 23 formed in a plurality of lines in the upper frame 20 via the fitting protrusion 41 of the closing cap 40 fitted on the top, the drive mounted on the fitting protrusion 41 Gears 50 are positioned in a row on the upper surface of the upper frame 20, both gear belts (60a) are engaged in a wave form alternately up and down the plurality of drive gears 50 installed in the row, the upper In the frame 20, a plurality of drivers are provided with a drive motor 63 for imparting rotational force to the two gear belts 60a. The shaft of the motor is connected to any one of the driving gears 50 of the 50, and the cover 26 is mounted with the sensor 80 above the upper frame 20, the sensor 80 Due to the operation of the drive motor 63 according to the detection signal of the positive gear belt 60a simultaneously rotates the drive gears 50 mounted on the top of the rotating membranes 30, by rotating in opposite directions The rotating membranes 30 are configured to be opened and closed in opposite directions.

When using the detachable automatic rotating door for the showcase according to the present invention, by protecting the various food and beverages displayed on the open showcase from foreign substances flowing from the outside to maintain a more clean display state, the cold air to increase the freshness to the outside It is possible to reduce the power consumption is solved by the problem of leaking. In addition, it is possible to easily promote the various foods displayed in the showcase by using the surface of the transparent membrane (acrylic plate or film paper).

In addition, since the upper end of the rotating membrane consisting of a single can be easily attached to the closing cap through the configuration of the fitting hole, connecting ring or mounting protrusions, there is an effect that the user can easily replace immediately when the rotating membrane is damaged. . On the other hand, considering that the present invention can be detachably mounted on the existing showcase, there is an advantage that can provide a more improved service to the consumer by using the existing facilities.

1 is a perspective view of a conventional open showcase

Figure 2 is an exploded perspective view of the removable automatic rotating door for showcase according to the present invention

Figure 3 is a detailed perspective view for explaining the combined state of the rotating membrane and the upper frame of the present invention

Figure 4 is a perspective view for explaining the sensor and the protective cover of the present invention

Figure 5 is a schematic diagram for explaining the operating principle of the rotary membrane and the opening interval of the rotary membrane according to the present invention.

Figure 6 is a schematic diagram for explaining another operating principle of the rotary membrane and the opening interval of the rotary membrane according to the present invention.

Figure 7 is a perspective view for explaining the gear belt and the drive gear and the first and second driven gear in the present invention;

Figure 8 is another exploded perspective view of the removable automatic rotating door for showcase according to the present invention

Figure 9 is another detailed perspective view for explaining the combined state of the rotating membrane and the upper frame of the present invention

10 and 11 are perspective views for explaining the rack gear, the drive gear and the first and second driven gear of the present invention;

12 is a schematic diagram for explaining a gear belt and a drive gear for operating the rotating membrane of the present invention.

Figure 13 is a detailed perspective view for explaining the installation state of both gear belt and the drive gear in the present invention

Figure 14 is another schematic diagram for explaining the two gear belt and the drive gear for operating the rotating membrane of the present invention

Figure 15 is another detailed perspective view for explaining the installation state of the two gear belt and the drive gear in the present invention

Figure 16 is a perspective view for explaining the connection means of the rotary membrane and the closing cap according to the present invention

Figure 17 is a perspective view for explaining the dew tray in the present invention

18 is a cross-sectional view taken along the line A-A and the line B-B shown in FIG.

19, 20 is a perspective view of the combination of the removable automatic rotating door for showcase according to the present invention

10: showcase

11: display shelf

12: display space

13: machine room

20: upper frame

21: Rail groove

22: lower frame

23: fitting ball

24: Overflow prevention jaw

25: drain slope

26: cover

30: rotating membrane

40: finishing cap

41: fitting

42: assemblyman

43: mounting protrusion

44: link

45: fitting groove

46: fitting

50: drive gear

50a: driving pulley

51: 1st driven gear

52: second driven gear

60: knitting gear belt

60a: Double gear belt

61: rack gear

62: bearing

63: drive motor

70: dewdrop

71: inclined bend

80 sensor

L: spacing

The present invention is detachably installed in front of the open showcase, the sensor 80 detects in advance the user's hand movement for holding the hand on the food displayed on the showcase, the plurality of rotating membrane 30 with the hand movement 90 ° It is a detachable automatic revolving door for showcase that allows to take out food while rotating at the same time.

Hereinafter, with reference to the accompanying drawings the technical configuration and effects of a preferred embodiment which can achieve the object of the present invention will be described.

Figure 2 is an exploded perspective view of the removable automatic rotating door for showcase according to the present invention. As shown in FIG. 2, a plurality of rotating membranes 30 for opening and closing the front of the showcase 10 and a rectangular upper frame 20 for installing the rotating membranes 30 are provided. The top of the rotary membrane 30 is fitted with a closing cap 40 as shown in the enlarged view of the circle shown in the upper portion of Figure 2, the fitting protrusion 41 is mounted in the center of the closing cap 40, the fitting protrusion A driving gear 50 is mounted to the 41.

In addition, the lower end of the rotary membrane 30, as shown in the enlarged view of the circle shown in the lower portion of Figure 2, the closing cap 40 is fitted, the fitting protrusion 41 is mounted in the center of the closing cap 40. Therefore, as described above, the plurality of rotating membranes 30 having the upper and lower caps 40 fitted therein are fitted into the fitting holes 23 formed in the upper frame 20 and the lower frame 22 shown in FIG. 41) is installed through the medium. However, since the lower frame 22 may be arbitrarily selected and installed, it may be excluded from the installation. When the lower frame 22 is not installed, the lower frame 22 is fitted in the closing cap 40 mounted at the lower portion of the rotating membrane 30. The projection 41 is also not mounted in conjunction.

On the other hand, the rotating membrane 30 preferably uses a transparent acrylic sheet or a transparent film having excellent flexibility so that consumers can easily recognize the instant food and beverages displayed inside the showcase from the outside. When the rotating membrane 30 is used as a transparent acrylic plate or transparent film paper, it may be easily promoted for various foods displayed in the showcase.

Figure 3 is a detailed perspective view for explaining the coupling state of the rotary membrane 30 and the upper frame 20 of the present invention. 3 is a cutaway view of a portion of the upper frame 20, since a plurality of fitting holes 23 formed in the inside of the upper frame 20 are formed at predetermined intervals, the rotating membrane in the fitting hole 23 When the fitting protrusion 41 of the 30 is inserted, a plurality of rotating membranes 30 are installed at regular intervals.

As shown in the enlarged view of the circle of FIG. 3, a knitting gear belt 60 is installed to simultaneously rotate a plurality of rotating membranes 30. The knitting gear belt 60 is fitted to the plurality of driving gears 50 mounted on the upper portion of the rotating membrane 30 to be closed and installed in a belt shape, and a driving motor to impart rotational force to the knitting gear belt 60. 63 is installed so that the shaft of the motor is connected to any one of the drive gear 50 of the plurality of drive gear (50). In addition, as shown in the enlarged view of the circle of FIG. 3, bearings 62 are respectively provided at both sides of the drive gear 50 positioned in the upper frame 20, and the bearing 62 is engaged with the drive gear 50. By applying tension to the knitting gear belt 60, the rotation transmission force is maintained to the maximum on the knitting gear belt 60 in the process of rotating the plurality of rotating membranes 30 by one drive motor (63). The plurality of rotating membranes 30 are to be operated unevenly without disturbing.

Figure 4 is a perspective view for explaining the sensor 80 and the protective cover 26 of the present invention, the cover 26 is mounted above the upper frame 20, the operation of the consumer on the cover 26 The sensor 80 for transmitting the driving signal to the driving motor 63 is mounted. The sensor 80 is a conventional one, it is preferable that any position of the configuration of the present invention is installed in a place that can sense the consumer's motion well.

5 is a schematic view for explaining the operating principle of the rotary membrane 30 and the opening interval of the rotary membrane 30 according to the present invention, Figure 5 (a) is a state in which the rotary membrane 30 is closed, In the state of 5 (a), when the consumer tries to reach and hold the food displayed on the inside of the showcase 10, the sensor 80 installed on the cover 26 of the upper frame 20 detects the consumer's motion. As a result, a drive signal for rotating the drive motor 63 in a clockwise direction is transmitted, and the drive motor 63 performs a rotational motion in accordance with the drive signal.

In addition, when the drive motor 63 is rotated in the clockwise direction, the knitting gear belt 60 that is interlocked with the drive motor 63 is a rectangular type of overall rotation while performing a linear movement as shown in (b) of FIG. As a result, a plurality of drive gears 50 meshed with the knitting gear belt 60 cause the rotary membrane 30 to rotate. As shown in FIG. As the rotary membrane 30 is rotated by 90 °, eventually the rotary membrane 30 is completely opened.

Meanwhile, referring to FIG. 5, the opening interval of the rotating membrane 30 according to the present invention is as follows. Figure 5 (a) shows the installation of the rotary membrane 30 in a closed state blocking the entrance of the showcase 10, Figure 5 (b) is the rotary membrane 30 is rotated 45 ° 5 (c) shows a state in which the inlet of the showcase 10 is completely opened by rotating the rotating membrane 30 by 90 degrees. As shown in (c) of FIG. 5, the intervals L of the plurality of rotary membranes 30 which are fully open are preferably maintained the same. This is to ensure that the same convenience at any position due to the same distance (L) of the open rotating membrane 30 when the consumer inserts his hand into the showcase.

For the convenience of the consumer, a plurality of rotating membranes 30 are installed in an odd number, but the width of the first and the last rotating membrane 30 is configured to be half compared to the width of the rotating membrane 30 is installed in the middle As a result, the gap L between the rotary membrane 30 and the rotary membrane 30 is maintained in the same state as shown in FIG. 5C while the rotary membrane 30 is completely opened.

On the other hand, Figure 6 is a schematic diagram for explaining another operation principle of the rotary membrane 30 and the opening interval of the rotary membrane 30 according to the present invention, Figure 7 is a knitting gear belt 60 and the drive gear of the present invention. 50 is a perspective view for explaining the first and second driven gears 51 and 52. In FIG. 5, the rotary membrane 30 is opened and closed using the knitting gear belt 60, one driving gear 50, and a bearing 62, but in FIG. 6, the knitting gear belt 60 and one driving gear ( 50) and the rotating membrane 30 is rotated clockwise by the first driven gear 51 and the second driven gear 52 engaged with the first driven gear 51 directly below the drive gear 50. And sequentially open and close at the same time counterclockwise.

That is, as shown in the enlarged view of the circle of FIG. 7, the knitting gear belt 60 is installed in the upper frame 20 so as to simultaneously rotate the plurality of rotating membranes 30. The knitting gear belt 60 is fitted to the plurality of driving gears 50 mounted on the upper portion of the rotating membrane 30 to be closed and installed in a belt shape, and a driving motor to impart rotational force to the knitting gear belt 60. 63 is installed so that the shaft of the motor is connected to any one of the drive gear 50 of the plurality of drive gear (50). In addition, as shown in the enlarged view of the circle in FIG. 7, a first driven gear 51 is disposed directly below the drive gear 50 positioned in the upper frame 20, and is located on the side of the first driven gear 51. The second driven gear 52 is engaged. In addition, a bearing 62 is installed at one side of the drive gear 50, and a bearing 62 is installed at an upper side of the second driven gear 52 at the other side of the drive gear 50. The bearing 62 applies tension to the knitting gear belt 60 meshed with the driving gear 50, whereby the plurality of rotating membranes 30 are rotated by one driving motor 63. The rotational transmission force is maintained at the maximum at 60 so that the plurality of rotating membranes 30 may be operated unevenly without being disturbed.

Therefore, when the driving motor 63 is rotated in the counterclockwise direction as shown in FIG. 6 (b), the first driven connected directly below the driving gear 50 and the driving gear 50 by the knitting gear belt 60. The gear 51 is rotated counterclockwise, and at this time, the rotary membrane 30 located below the first driven gear 51 is also rotated counterclockwise. On the other hand, when the first driven gear 51 is rotated in the counterclockwise direction, the second driven gear 52 meshed with the first driven gear 51 is rotated in the clockwise direction, the second driven gear 52. Rotating membrane 30 located below the will also be opened as shown in Figure 6 (c) while rotating clockwise.

The technique to be described with reference to FIGS. 6 and 7 may be opened while maintaining the same distance L as shown in FIG. 6C even when the rotating membrane 30 is rotated in different directions. In addition, as the rotating membrane 30 opened as shown in FIG. 6C is not positioned inside the showcase, while the rotating membrane 30 is positioned outside the showcase, the display shelf 11 installed inside the showcase is shown. ) And the rotating membrane 30 does not occur, and can be installed by securing a wider interval (L) of the rotating membrane 30 to be opened, it is convenient to put the bulky food in and take out .

8 is another separated perspective view of the detachable automatic rotating door for a showcase according to the present invention. As shown in FIG. 8, a plurality of rotating membranes 30 and the rotating membrane 30 for opening and closing the front of the showcase are installed. The upper frame 20 of the rectangular shape is provided for. The top of the rotary membrane 30 is fitted with a closing cap 40 as shown in the enlarged view of the circle shown in the upper portion of Figure 8, one side of the closing cap 40 is fitted with a fitting protrusion 41, the fitting protrusion A drive gear 50 is mounted to the 41, and a first driven gear 51 is mounted directly below the drive gear 50. Meanwhile, as shown in the enlarged view of the circle shown in the upper part of FIG. 8, the rotating membrane 30 mounted with the second driven gear 52 to be engaged with the first driven gear 51 on the side of the first driven gear 51. This is located.

In addition, as shown in the enlarged view of the circle shown in the lower portion of the rotary membrane 30, the closing cap 40 is fitted, one end of the closing cap 40 is fitted with a fitting protrusion 41. Therefore, as described above, the plurality of rotary membranes 30 fitted with the upper and lower caps 40 are fitted with fitting holes 23 formed in the upper frame 20 and the lower frame 22 shown in FIG. 8. 41) is installed through the medium. However, since the lower frame 22 may be arbitrarily selected and installed, it may be excluded from the installation. When the lower frame 22 is not installed, the lower frame 22 is fitted in the closing cap 40 mounted at the lower portion of the rotating membrane 30. The projection 41 is also not mounted in conjunction.

9 is another detailed perspective view for explaining the coupling state of the rotary membrane 30 and the upper frame 20 of the present invention, Figure 10, 11 is a rack gear 61 and the drive gear 50 and the present invention; A perspective view for explaining the first and second driven gears 51 and 52. A rack gear 61 is installed to simultaneously rotate the rotating membrane 30 while maintaining a constant interval as shown in the enlarged view of the circle of FIG. 9, wherein the rack gear 61 is formed on the side of the upper frame 20. It is a configuration interpolated into the rail groove 21.

That is, the rack gear 61 is mounted to linearly move left and right in the rail groove 21 formed on the side of the upper frame 20, as shown in the enlarged view of the circle of Fig. 11, the plurality of rotating membranes 30 are at the tip By being engaged with the rack gear 61 via the installed drive gear 50, the linear movement of the rack gear 61 is changed to the rotational movement of the drive gear 50, located directly below the plurality of drive gear 50. The rotating membrane 30 is to be rotated at the same time.

On the other hand, the rotational motion of the drive gear 50 is interlocked with the first driven gear 51 provided directly below the drive gear 50, the first driven gear 51 is made as shown in the enlarged view of the circle of FIG. The configuration is engaged with the second driven gear 52 laterally, the counterclockwise rotational movement of the first driven gear 51 is developed in a clockwise rotational movement in the second driven gear 52, two rotations The showcase is opened and closed while the membrane 30 is rotated clockwise and counterclockwise at the same time. In addition, the linear motion of the rack gear 61 is a linear motion of the rack gear 61 due to the drive of the drive motor 63 installed on the upper surface of the upper frame 20, as shown in FIGS.

Meanwhile, another embodiment of the present invention described with reference to FIGS. 8 to 11 is based on the operation of the rack gear 61, the drive gear 50, and the first and second driven gears 51 and 52. The open position of is to be located only in front of the showcase. This is to prevent the interference with the display shelf 11 installed inside the showcase during the rotation of the rotating membrane 30, it can be installed by securing a wider interval (L) of the rotating membrane 30 to be opened It is convenient to add and take out bulky foods.

Figure 12 is a schematic diagram for explaining the gear gear 60a and the drive gear 50 for operating the rotating membrane 30 of the present invention, Figure 13 is the gear belt 60a and the drive gear (a) of the present invention ( It is a detailed perspective view for demonstrating the installation state of 50). The operating principle of the rotating membrane 30 shown in FIG. 12 and the opening interval of the rotating membrane 30 are the same as described above with reference to FIG. 5. 12 and 13, but instead of engaging the knitting gear belt 60 to the drive gear 50, the two gear belts (60a) formed with gears on both sides of the belt are engaged, but a plurality of drives installed in a row By installing the gear 50 so as to be closed while being alternately up and down with each other, both gear belts 60a are engaged with each other while forming a waveform. Therefore, while both gear belts 60a rotate the drive gears 50 mounted on the upper portions of the rotating membranes 30 at the same time, the rotating membranes 30 are opened and closed in opposite directions. It is characteristic.

As shown in the enlarged view of the circle in FIG. 13, a bearing 62 is provided on the side of the drive gear 50 in order to apply tension to both gear belts 60a engaged with the drive gear 50. In addition, by installing the drive motor 63 by connecting the shaft of the motor to any one of the drive gear 50 of the plurality of drive gears 50, due to the operation of one drive motor 63 a plurality of rotating membrane 30 To make things work together. On the other hand, as shown in the drawing with the arrow in Figure 13, instead of the drive gear 50 with gears may be provided with a gearless drive pulley (50a) on the outer circumferential surface, using the friction force of the drive pulley (50a) and the belt By this, the driving force of the driving motor 63 may be transmitted.

Figure 14 is another schematic diagram for explaining the two gear belt 60a and the drive gear 50 for operating the rotating membrane 30 of the present invention, Figure 15 is the drive gear and belt 60a in the present invention Another detailed perspective view for explaining the installation state of the gear 50. The operating principle of the rotating membrane 30 shown in FIG. 14 and the opening interval of the rotating membrane 30 are the same as described above with reference to FIG. 6. However, as shown in Figures 14 and 15, instead of fitting the knitting gear belt 60 to the drive gear 50, but the gears formed on both sides of the gear gear gear 60a, but a plurality of drives installed in a row By installing the gear 50 so as to be closed while being alternately up and down with each other, both gear belts 60a are engaged with each other while forming a waveform. Therefore, while both gear belts 60a rotate the drive gears 50 mounted on the upper portions of the rotating membranes 30 at the same time, the rotating membranes 30 are opened and closed in opposite directions. It is characteristic.

In addition, as shown in Figs. 14 and 15, two drive gears 50 are provided in pairs in a row, but a pair of drive gears 50 are installed in an odd number, and a pair of drive gears 50 are installed. Only one drive gear 50 is installed in one side instead of a pair, and then the gear belt 60a is installed to be closed by alternately moving up and down on a plurality of drive gears 50 installed in a row, and the gears being engaged In order to apply tension to the belt 60a, a bearing 62 is installed on the drive gear 50 side. In addition, by installing the drive motor 63 by connecting the shaft of the motor to any one of the drive gear 50 of the plurality of drive gears 50, due to the operation of one drive motor 63 a plurality of rotating membrane 30 ) Will open and close unevenly.

Meanwhile, as the rotating membrane 30 opened as shown in FIG. 14C is not positioned inside the showcase 10, the rotating membrane 30 is positioned outside the showcase 10 while the rotating membrane 30 is opened. 10) There is no problem of interference between the display shelf 11 and the rotating membrane 30 installed therein, and the gap L of the rotating membrane 30 to be opened can be secured and installed wider, thereby increasing the volume. It is easy to put in and take out large foods. On the other hand, as shown in the drawing with the arrow in Figure 15, instead of the drive gear 50 with a gear may be provided with a gearless drive pulley (50a) on the outer circumferential surface, using the friction force of the drive pulley (50a) and the belt By this, the driving force of the driving motor 63 may be transmitted.

Figure 16 is a perspective view for explaining the connection means of the rotary membrane 30 and the closing cap 40 according to the present invention, Figure 16 (a) forms a mounting projection 43 to the closing cap 40 After drilling a hole in the tip of the rotary membrane 30, the rotary membrane 30 is connected to the finishing cap 40 by inserting the rotary membrane 30 into the mounting protrusion 43. In addition, Figure 16 (b) is a hole 44 in the front end of the rotary membrane 30, and then connecting the hole 44 of the rotary membrane 30 and the assembly hole 42 formed on the side of the closing cap 40, the ring 44 Connect the rotary membrane 30 and the closing cap 40 in such a way as to connect through.

In addition, (c) of Figure 16 forms a fitting groove 45 on the side of the closing cap 40, the end of the rotary membrane 30 the fitting hole 46 of the shape corresponding to the fitting groove 45. Then, the rotary membrane 30 and the closing cap 40 by pushing the fitting hole 46 attached to the tip of the rotary membrane 30 into the fitting groove 45 of the closing cap 40. To connect. The connecting means of the rotary membrane 30 and the closing cap 40 as shown in FIG. 16 is designed to be easily replaced by the user when the rotary membrane 30 is individually damaged.

FIG. 17 is a perspective view for explaining the dew receiver 70 of the present invention, and FIG. 18 is a cross-sectional view taken along a line A-A and a line B-B shown in FIG. Dew is formed on the surface of the rotating membrane 30 due to the temperature difference in the air, in order to drain the dew clean in real time, the dew receiver 70 is installed on the lower end of the rotating membrane 30. .

That is, as shown in the enlarged view of the circle of FIG. 17 and the cross-sectional view taken along the line AA of FIG. Fit in place. Therefore, as indicated by the arrows in the circle enlarged view shown in the lower part of FIG. 17, the dew is collected in the dew receiver 70, and the collected dew is discharged along the inclined bent portion 71. .

Meanwhile, the BB line illustrated in FIG. 18 is a cross-sectional view of the lower frame 22, and the upper surface of the lower frame 22 is formed of an inclined drainage slope 25, and one side of the lower frame 22 has a overflow prevention jaw 24. ) Is formed to protrude. Accordingly, the dew flowing along the inclined bent portion 71 of the dew receiver 70 is discharged into the showcase 10 along the drain slope 25 of the lower frame 22. In addition, the overflow prevention jaw 24 is formed to prevent the dew from overflowing out of the lower frame 22 when excessive dew flows down the drain slope 25.

As described above, the discharged dew is collected in a separately prepared sump at the lower part of the machine room of the showcase or managed by a system that collects them in one place through a separate drainage pipe. The configuration will be separate from the invention.

19, 20 is a combined perspective view of the removable automatic rotating door for showcase according to the present invention, by using both the upper frame 20 and the lower frame 22 as shown in Figure 19 removable automatic rotating door for showcase according to the present invention. It may be mounted, and as shown in FIG. 20, only one upper frame 20 may be installed and mounted. When using the plate material having a slight weight and texture, such as an acrylic plate, the rotating membrane 30 is preferably installed by installing both the upper frame 20 and the lower frame 22 as shown in FIG. In the case of using flexible and light film paper 30, it is preferable to install only the upper frame 20 as shown in FIG.

As described above, when the detachable automatic rotating door for showcase according to the present invention is used, various foods and drinks displayed on the open showcase may be protected from foreign substances introduced from the outside, thereby maintaining a cleaner display state, and increasing freshness. The problem of excessive cold air leaking to the outside is solved, thereby reducing power consumption. In addition, by using the surface of the transparent membrane 30 (acrylic plate or film paper) of the transparent material it is possible to easily promote the various foods displayed in the showcase.

In addition, as the upper end of the rotary membrane 30 composed of a single can be easily attached to the closing cap 40 through the configuration of the fitting hole 46, the connecting ring 44 or the mounting protrusion 43, When the rotating membrane 30 is damaged, the user can easily replace it immediately, and considering that the present invention can be detachably mounted on the existing showcase, the customer can be provided with an improved service using the existing facilities. You can do it.

Claims

A plurality of rotating membranes 30 are provided, and a closing cap 40 is fitted on the upper portion of the rotating membrane 30, and a fitting protrusion 41 is mounted at the center of the closing cap 40, and the fitting protrusion ( 41, the drive gear 50 is mounted, the closing cap 40 is fitted to the lower portion of the rotary membrane 30, the rotary membrane 30 is fitted projection 41 of the closing cap 40 fitted to the upper Assembled in the fitting hole 23 formed in a plurality of rows in the upper frame 20 via a medium, the drive gear 50 mounted on the fitting protrusion 41 is positioned in a line on the upper surface of the upper frame 20, Bearings 62 are provided on both sides of the drive gear 50 to provide tension to the knitting gear belt 60 meshed with the driving gear 50, and the knitting gear belt is provided inside the upper frame 20. A drive motor 63 for imparting rotational force to the 60 is installed while the shaft of the motor is connected to any one of the plurality of drive gears 50, and the upper frame ( A cover 26 having a sensor 80 mounted thereon is mounted above 20, and the knitting gear belt 60 is rotated due to the operation of the driving motor 63 according to the detection signal of the sensor 80. Removable automatic rotating door for a showcase, characterized in that by rotating the drive gear (50) mounted on the upper portion of the 30 at the same time at the same time, the rotary membrane 30 is opened and closed in the same direction.
The method according to claim 1,

A first driven gear 51 is installed directly under the drive gear 50, and a second driven gear 52 is engaged with the first driven gear 51, and the second driven gear 52 is engaged with the drive gear 50. One of the bearings 62 installed at both sides is installed above the second driven gear 52 so that the first and second driven gears 51 and 52 are opposite to each other when the knitting gear belt 60 is operated. Removable automatic rotating door for a showcase, characterized in that the rotating membrane 30 is opened and closed in opposite directions while being rotated in the direction.
A plurality of rotating membranes 30 are provided, and a closing cap 40 is fitted on the upper portion of the rotating membrane 30, and a fitting protrusion 41 is mounted at the center of the closing cap 40, and the fitting protrusion ( 41, the drive gear 50 is mounted, the closing cap 40 is fitted to the lower portion of the rotary membrane 30, the rotary membrane 30 is fitted projection 41 of the closing cap 40 fitted to the upper Assembled in the fitting hole 23 formed in a plurality of rows in the upper frame 20 via a medium, the drive gear 50 mounted on the fitting protrusion 41 is positioned in a line on the upper surface of the upper frame 20, Both gear belts (60a) is engaged while forming a waveform alternately up and down each of the plurality of drive gears (50) installed in a row, the inner frame of the upper frame 20 to give a rotational force to the both gear belt (60a) The drive motor 63 is installed while the shaft of the motor is connected to any one of the drive gear 50 of the plurality of drive gear 50, the upper pre The cover 26 having the sensor 80 mounted thereon is mounted above the 20 so that the two gear belt 60a rotates due to the operation of the driving motor 63 according to the detection signal of the sensor 80. Removable automatic rotating door for a showcase, characterized in that by rotating the drive gears (50) mounted on top of the membranes (30) at the same time, by rotating in the opposite direction, the rotating membranes 30 are opened and closed in opposite directions.
A plurality of rotary membranes 30 are provided, the top of the rotary membrane 30 is fitted with a closing cap 40, one side of the closing cap 40 is fitted with a fitting protrusion 41, the fitting protrusion ( 41, the drive gear 50 is mounted, the closing cap 40 is fitted to the lower portion of the rotary membrane 30, the rotary membrane 30 is fitted projection 41 of the closing cap 40 fitted to the upper Assembled in the fitting hole 23 formed in a plurality of rows in the upper frame 20 via a medium, the drive gear 50 mounted on the fitting protrusion 41 is positioned in a line on the upper surface of the upper frame 20, The first driven gear 51 is installed directly under the drive gear 50, and the second driven gear 52 is engaged with the first driven gear 51, and the upper frame 20 is engaged with the first driven gear 51. The rack gear 61 is interposed into the rail groove 21 on the inner side thereof and is engaged with the drive gears 50, and the driving motor 63 driving the rack gear 61 on the upper surface of the upper frame 20. Is installed, and Above the frame 20, a cover 26 having a sensor 80 mounted thereon is mounted so that the rack gear 61 rotates due to the operation of the driving motor 63 according to the detection signal of the sensor 80. As the driving gears 50 mounted on the upper portions of the membranes 30 are rotated simultaneously, the first and second driven gears 51 and 52 rotate in opposite directions, and the rotating membranes 30 rotate in opposite directions. Detachable automatic rotating door for showcase, characterized in that the opening and closing.
The method according to any one of claims 1 to 4,

The fitting cap 41 is mounted to the closing cap 40 fitted to the lower portion of the rotating membrane 30, and the fitting protrusions 41 of the closing cap 40 fitted to the lower portion of the rotating membrane 30 are lower frames ( Removable automatic rotating door for a showcase, characterized in that assembled in the plurality of fitting holes (23) formed in 22).
The method according to claim 5,

The upper surface of the lower frame 22 is formed as an inclined drainage inclined surface 25, the side of the lower frame 22 detachable automatic rotating door for a showcase, characterized in that the overflow prevention jaw 24 is formed protruding.
The method according to claim 6,

As the dew receiver 70 having the inclined bent portion 71 is fitted in the lower portion of the rotary membrane 30 as a small gap between the closing cap 40 and the rotary membrane 30, the rotary membrane 30 Removable automatic rotating door for a showcase, characterized in that the dew generated on the surface of the drop is discharged gathered in one place through the dew tray (70).
The method according to any one of claims 1 to 3,

The drive pulley (50a) is mounted in place of the drive gear 50, and instead of the knitting gear belt (60) and both gear belt (60a), the removable automatic rotating door for a showcase, characterized in that the gear is installed.
The method according to any one of claims 1 to 4,

After drilling a hole in the tip of the rotary membrane 30, connecting the rotary membrane 30 and the closing cap 40 in such a way that the rotary membrane 30 is inserted into the mounting protrusion 43 formed on the closing cap 40 Or, by drilling a hole in the tip of the rotary membrane 30, the rotary membrane (in the manner of hanging the connecting ring 44 to the assembly hole 42 formed on the side of the hole of the rotary membrane 30 and the closing cap 40) 30 and the closing cap 40, or to form a fitting groove 45 on the side of the closing cap 40, the fitting groove 46 of the shape corresponding to the fitting groove 45, the rotary membrane ( Attached to the tip of the 30, by connecting the rotary membrane 30 and the closing cap 40 in a manner to push the fitting hole 46 into the fitting groove 45 of the closing cap 40, consisting of a single Detachable automatic rotating door for showcase, characterized in that the user can be easily replaced immediately when the rotary membrane 30 is damaged.