KR101412527B1 - Meter-rate collecting apparatus of food waste - Google Patents

Abstract

The present invention relates to a volume-rate food waste collection device and, more specifically, to a volume-rate food waste collection device capable of providing an RFID-based volume-rate food waste collection service to consumers while promoting the convenience of a volume-rate food waste collection work. According to the present invention, the volume-rate food waste collection device comprises a device body capable of putting food wastes to a collection container by receiving the food waste collection container therein and automatically opening and closing the upper part thereof; an odor removal part installed inside the device body to remove odor and bacteria caused by the decomposition of the food wastes; and a control part for remote-controlling an electronic payment and management system for volume-rate food waste collection through the operation of the device while being installed inside or outside of the device body.

Description

{METER-RATE COLLECTING APPARATUS OF FOOD WASTE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for collecting the amount of food waste, and more particularly, to a device for collecting the amount of food waste to be provided to a consumer, will be.

The total amount of garbage that is discarded nationwide in a day is 15,075 tons of 1,880 trucks of 8 ton trucks, accounting for 31.6% of total household garbage. According to the distribution of characteristics, vegetables (vegetables) account for 53.1% of the total, while meat (meat) and fish and shellfish (fish and shellfish) account for 18.6%.

On the other hand, in the case of collecting garbage that is abandoned at home or restaurants, a common food garbage can is installed at a fixed point in the case of a building such as a shopping mall or an apartment complex, and a consignee collects garbage filled in the garbage can, There is a controversy over the equitable nature of the households in which households pay the corresponding treatment expenses regardless of the amount of garbage collected that is different from household to household.

In order to solve such a problem, Korean Patent No. 10-0886969, Korean Patent No. 10-0993983, Korean Patent No. 10-0953110, and the like, (Hereinafter, referred to as a "key"), so that the fee can be reasonably paid according to the amount of waste to be disposed of the food waste.

However, in order to collect the food garbage filled in the garbage disposal container, the front door of the collecting device must be opened and the garbage container must be taken out of the garbage collection container.

In addition, since the food garbage collection container has various specifications according to each manufacturer, there is a variation in the weight zero set in the weight collection device due to different weight deviations when replacing the existing collection bin filled with food garbage with a new collection bin Consumers who are first to discard food waste have been pointed out as a cause of gain or gain in losses compared to the amount of food waste that they throw away.

In addition, when food waste flows into the bulk collecting device due to carelessness when the existing food garbage receptacle is completely filled with food waste, it is difficult to clean the inside of the collecting device due to the remaining food waste Problems of pollution of the surrounding environment have become serious, for example, the user and the surrounding people feel uncomfortable due to the generation of odor.

Accordingly, Korean Patent Application No. 10-2005-0014327, Korean Patent Registration No. 10-1088691, etc. have restricted the collection device having a function capable of removing odors generated in the food waste collection device, It has not been able to solve the foul odor.

Thus, research and development of related technologies are needed to completely solve various problems occurring in the application of the conventional food garbage collection container having the structural aspect of the gravity collecting device and various specifications.

Korean Patent Publication No. 10-2005-0014327 (Published Date: Feb. 27, 2005) Korean Patent No. 10-1088691 (Registration date: November 25, 2011)

It is an object of the present invention to solve the above problems, and it is an object of the present invention to provide an apparatus and method for disposing a garbage collecting container, And which can prevent contamination of the surrounding environment.

It is another object of the present invention to provide a control unit necessary for collecting a bill of quantities and driving a device and to provide electronic approval and related information using an IC chip and an NFC chip of a credit card or a smart phone, And to provide a collection device for the amount of food waste.

According to an aspect of the present invention, there is provided a food waste disposal apparatus, comprising: a main body of a food waste receptacle; A malodor removing unit installed in the main body of the apparatus to remove odors generated due to food waste decay and eradicate bacteria; And a control unit for enabling remote control of an electronic approval and management system for collecting the amount of food waste through device driving and device driving in a state of being linked to the inside and outside of the apparatus main body .

The apparatus main body includes a box-shaped housing having an inner space capable of internally accommodating the food garbage receptacle therein, a front door hinged to open and close a front opening of the box-shaped housing, An upper cover hinged to a top door for allowing food waste to be introduced into the food garbage receptacle accommodated in the inner space through opening and closing of an opening portion and an upper cover hinged to the housing and the upper cover, And an actuator that automatically opens and closes the top door according to the execution.

In addition, the malodor removing unit may include an active filter for absorbing gas or moisture to suppress the generation of malodor, a deodorant for removing the odor, and an odor filter for circulating the odor stuck in the apparatus main body to the active filter and the deodorizer And a blower fan.

The controller may include a controller for inputting a program for driving the apparatus, an IC chip of a credit card or an NFC chip of a smart phone, an RFID card reader and an LED display for inputting and outputting information by the RFID system, And a control unit for controlling the operation of the apparatus and the data transmission / reception through a remote control of the management system and a connection to the server in a state of being embedded in the main body of the apparatus. And a CDMA modem.

In addition, a canopy is further provided on the upper cover to prevent rainwater from penetrating into the inner space of the housing when raining.

Further, both side edge portions where the bottom plate and the side plate of the housing meet each other are formed as curved curved portions for cleaning and draining the bottom of the inner space.

In addition, the front part of the housing is characterized in that the food garbage receptacle is tilted backward at an inclination angle of 5 ° so that it can be pushed into or pulled out of the inner space.

The upper cover includes a guide drum including a top door, a guide drum through which a food waste can be inserted when the top door is opened, and a power supply by a program execution of the control unit. A second locking member capable of locking and unlocking the top door by using a protrusion functioning to advance is coupled to the guide drum, and information included in the light itself or light is converted into an electric signal and detected around the guide drum And a plurality of optical sensors for detecting the amount of garbage collected through the door or for preventing the hands from being lowered when the door is lowered.

In addition, on the bottom plate of the housing, there is installed a winder for measuring the own weight of the food garbage container and the amount of the food garbage to be loaded therein, and on the top of the winder, And a swash plate is provided at the front of the winder to allow the food garbage receptacle to enter the inner space and to simply place the food garbage receptacle on the lift.

In addition, the housing and the front door may be provided with a door regulator for preventing door breakage by limiting the open / close range of the front door, and a cam door for preventing the front door from being twisted and tightened with the front opening, And a magnetic sensor for maintaining the closed state together with opening and closing of the front door, and a first locking member for manually locking and unlocking the front door.

In addition, the door regulator includes a plurality of first hinge pieces hinged to the inner surface of the one side plate of the housing by separate brackets, and a second hinge piece connected to the front end of the first hinge pieces in a state in which one side is rotatable, And a second hinge piece hinged to an inner surface of the one side of the front door by a bracket of the first hinge piece.

In addition, the cam guard may include a mounting piece integrally attached to an inner surface of the rotary side of the front door, and a mounting member attached to one side of the front opening of the housing in a " And a traction piece supported on the base.

As can be clearly understood from the above description, the food waste collecting device of the present invention is capable of electronic payment using a credit card or a smart phone, thereby facilitating the collection process of the food waste at the time of collecting food waste, Users), but it also has the effect of inducing the amount of food waste to be reduced by itself by immediately sensing the cost expenditure due to the settlement of the individual charges.

In addition, by changing the structure of the main body of the apparatus, it is possible to improve work convenience of the collection source for replacing the collection box, and to provide a pleasant environment for suppressing the surrounding pollution, The management and supervision of the garbage collection system has the effect of greatly improving the operating efficiency of the consignee due to convenience.

In addition, through the achievement of the above-mentioned various effects, it is possible to secure data for helping to regulate the system and regulations related to the implementation of the food waste disposal system, and to reduce the amount of food waste generated annually, It is a very useful invention that greatly contributes to the development of the national economy along with the growth of the green technology (green technology) industry such as the creation of the green environment.

1 is a perspective view showing an external structure of a garbage collecting device according to the present invention.
FIG. 2A and FIG. 2B are a side sectional view and a cross-sectional view showing the inner configuration of the waste garbage collecting apparatus according to the present invention.
FIG. 3A and FIG. 3B are enlarged views showing the operating relationship of the door regulator in the garbage collecting device according to the present invention. FIG.
4 is a cross-sectional view of the main part showing the configuration of the upper cover and the operation of the actuator in the food waste collecting device according to the present invention.
FIG. 5 is a perspective view showing a mounting state of a canopy attached to an upper cover in a garbage collecting device according to the present invention. FIG.
FIG. 6 is a block diagram showing a controller operation relationship of a controller in a food waste sorting apparatus according to the present invention; FIG.
FIG. 7 is an exemplary diagram showing a discharge flow chart of a food garbage bulk collecting apparatus according to the present invention; FIG.
FIG. 8 is an exemplary view showing an administrator processor of the apparatus for collecting the amount of food waste according to the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

1 is a perspective view showing an external structure of a garbage collecting apparatus according to the present invention, and Figs. 2a and 2b are a side sectional view showing the internal configuration of the garbage collecting apparatus according to the present invention, FIG. 4 is a sectional view showing the structure of the upper cover of the apparatus for collecting food garbage according to the present invention, and FIG. 4 is a cross- FIG. 5 is a perspective view showing a mounting state of a canopy installed on an upper cover in the food waste collecting device according to the present invention, FIG. 6 is a perspective view showing the operation of the collecting device of food waste, Fig. 7 is a block diagram showing the controller operation relationship of the controller in Fig. An exemplary view showing a discharge flow chart of a pay-per-plant waste collection device, Fig. 8 is an exemplary view showing the administrative processor of the pay-per-food waste collection device according to the present invention.

As shown in FIGS. 1 and 2B, the food waste collecting device A according to the present invention includes a food garbage collecting container (c) for receiving food waste into the receptacle (c) A malodor removing unit 2 installed in the apparatus main body 1 to remove odors generated due to food waste and putrefaction to eradicate bacteria, And a control unit 3 for enabling remote control of the electronic approval and management system for driving the apparatus and collecting the amount of food waste through the apparatus in a state of being connected to the inside and the outside of the main body 1.

The apparatus main body 1 is for the convenience of collecting food waste in quantity and characterization of the management system configuration and is provided with an internal space 11a capable of internally accommodating the food waste receptacle c, (11) which is integrally connected to the upper end of the housing (11) and which is inserted into the receptacle (c) accommodated in the inner space (11a) through opening and closing of the central opening The upper cover 12 is hinged to a top door 121 to allow food waste to be inserted into the upper cover 12. The upper cover 12 is connected to the housing 11 and the upper cover 12, And an actuator 13 that automatically opens and closes the top door 121.

5, a canopy 14 for preventing rainwater from permeating into the inner space 11a of the housing 11 during rain and mixing with food waste is formed on the upper cover 12 As shown in FIG.

On the other hand, both side edges of the bottom plate and the side plate of the housing 11 are formed as a round type curved portion 11-1 so as to easily peel food waste adhering to the bottom corner of the inner space 11a It is possible to drain, but the drainage at the time of cleaning the water is the dragon.

In addition, since the front portion is inclined rearward, it is possible to work the worker to push the receptacle c into the internal space 11a or to pull out the receptacle c from the outside without bending the waist. The inclination of the front surface portion preferably has an inclination angle? Of about 5 degrees.

The one side plate is provided with an accessory case 112 capable of mounting various kinds of hardware constituting the control unit 3. The weight of the food waste storage container c and the weight of the food waste container c A road cell 113 capable of measuring the amount of food waste to be dispensed is mounted and a lift 113-1 on which a food garbage canister c is placed is installed at the top of the load cell 113 .

A slope plate 114 is provided on the bottom plate in front of the winder 113 so as to allow the food garbage receptacle c to enter the inner space 11a and be easily placed on the lift 113-1 Additional configurations are preferred.

The door 11 and the front door 111 are provided with a door regulator 115 for preventing door breakage by limiting the opening and closing range of the front door 111 hinged to the front of the housing 11, A cam guard 116 for preventing the front door 111 from being warped and enhancing the adhesion with the front opening according to the structural characteristics of the inclined housing 11 and a cam guard 116 for detecting a closing state of the front door 111, A magnetic sensor 117 for maintaining the state of the front door 111 and a first locking member 118 for manually locking / unlocking the front door 111 are further combined.

The other side plate of the housing 11 is further coupled with a limit sensor 119 for sensing the approach of the food waste receptacle c and sensing whether the internal space 11a is received or not.

The door regulator 115 includes a plurality of first hinge pieces 115-1 hinged to the inner surface of one side plate of the housing 11 by a separate bracket as shown in Figs. 3A and 3B, The second hinge piece 115-1 is hinged to one side of the inner surface of the front door 111 by a separate bracket while the other side of the second hinge piece 115-1 is coupled to the front end of the first hinge piece 115-1 in a rotatable state, 115-2. Accordingly, even if the front door 111 is strongly opened from the housing 11, the maximum opening range is not exceeded so that breakage of the hinge portion can be prevented.

As shown in FIG. 2B, the cam guill 116 includes a mounting piece 116-1 integrally attached to an inner surface of a rotation side portion of the front door 111, And a pulling piece 116-2 which is mounted on the mounting piece 116-1 when the front door 111 is closed. When the front door 111 is closed, the pulling piece 116-2 lifts the loading piece 116-1, so that the front door 111 is prevented from being twisted, So that the waterproof property can be maintained.

The magnetic sensor 117 is disposed on the inner surface of the rotating side of the front door 111 and the corresponding one of the front openings of the housing 11 so as to be in contact with the magnetic force lines Which is a kind of a switch capable of detecting the open / close state of the front door 111 by the door opening / closing mechanism, and the closed state of the front door can be maintained according to the joining characteristics when the doors are close to each other.

The upper cover 12 is provided with a guide drum 122 including a top door 121 and having an inlet 121a through which food waste can be introduced when the top door 121 is opened, And a second locking member 123 which is assembled and coupled to the top door 121 to lock / unlock the top door 121 by using projections that act to advance by the power supply by the program execution of the control unit 3. [

The guide drums 122 are provided around the guide drums 122 so as to detect the amount of food waste collected by converting the information contained in the light itself or light into electric signals and to detect the amount of food waste, A plurality of photo sensors 124 are mounted on all sides.

4A and 4B, it is desirable that the actuator 13 be a motor cylinder in which the cylinder rod is moved forward and backward by motor drive. On the other hand, when the cylinder is placed in the forward direction, the height of the food waste receptacle c It is possible to select the optimum position through the installation in the reverse direction and to prevent the forced operation of the top door 121 due to advancement of the cylinder rod.

The malodor removing unit 2 is for removing bad odors generated by decay of food waste contained in the food waste receptacle c contained in the internal space 11a of the housing 11, An active filter 21 for absorbing gas and moisture to suppress the generation of odor, a deodorant 22 for removing odor and a deodorant 22 for deodorizing the active filter 21 and deodorant 22 And an air blowing fan 23 for circulating the air blown through the air blower.

The active filter 21 is preferably made of an ammoniacal or basic activated carbon (active carbon) having a property of absorbing gas or moisture due to its strong adsorption property, But is not limited thereto.

The deodorant 22 is used as a deodorant by physically adsorbing a typical active carbon, a silica gel, an activated clay, a typical aqueous potassium permanganate solution, and a formalin as a deodorant by a chemical action. But is not necessarily limited thereto.

The control unit 3 is a smart system such as a device for driving the device such as automatic opening and closing of the top door 121 and remote control of an electronic approval and management program for collecting the amount of food waste and includes electronic approval and management In addition to the driving of the system for driving the system, it is also possible to use an IC chip embedded in a credit card or a smart phone, a management system using electronic approval using near field communication (NFC) and radio frequency identification (RFID) Remote control implementation is possible.

6, an RFID card reader 311 for inputting a program for driving the apparatus, recognizing an IC chip of a credit card or an NFC chip of a smartphone, and inputting and outputting various information by the RFID system, And a LED display 312. The controller 31 is electrically connected to the controller 31 and is incorporated in an accessory case 112 provided on one side plate of the housing 11, And a CDMA modem 33 (or WIFI), which is a communication module for transmitting / receiving various data through remote control of the management system and server connection, constituted of an I / O board, a CUP, do.

However, the present invention is not necessarily limited to the above, and any combination of the above-described functions, objects, and devices capable of exhibiting the objects and effects may be possible.

The controller 31 may further include a speaker (not shown) and a display lamp for voice guidance function for each step. The controller 31 may be connected to an IC chip or an NFC chip and various objects such as food, It is desirable to use a PCB transparent fabric in front of the reader and to use a rubber mold for increasing the waterproof property between the board and the body of the device in order to increase the RFID recognition rate.

Hereinafter, the operation of the apparatus for collecting the waste amount of food waste according to the present invention will be described in detail.

First, the front door 111 is opened to allow the inner space 11a of the housing 11 to be opened. Then, the food garbage receptacle c is internally received in the inner space 11a, The front door 111 can be freely opened by operating the first locking member 118 after the door 111 is closed to close the inner space 11a so that food waste To be able to collect levy.

Whether or not the food garbage receptacle c is accommodated in the internal space 11a can be confirmed by recognizing whether or not the limit sensor 119 provided on the one side plate of the housing 11 approaches the receptacle c .

On the other hand, a canopy 14 may be further assembled on the upper cover 12 to prevent rainwater from penetrating into the inner space 11a of the housing 11 during rain and mixing with food waste.

In this state, the RFID card reader 311 configured in the controller 31 of the control unit 3 is provided with a credit card or a smart phone (not shown) in order to collect the amount of food waste through the food garbage collecting apparatus A of the present invention. The IC chip or the NFC chip is recognized so that the top door 121 hinged to the upper cover 12 is opened so that the food is taken into the food garbage receptacle c accommodated in the inner space 11a of the housing 11 It is possible to throw in.

That is, when the electronic settlement process described above is performed, a signal of the corresponding process is transmitted to the hardware 32 via the controller 31, and the upper cover 12 of the apparatus main body 1, And the top door 121 hinged to the center upper end is automatically opened by the driving of the actuator 13.

Thus, the inlet 122a of the guide drum 122 at the center of the upper cover 12 is exposed, and food waste can be introduced into the food waste receptacle c through the inlet 122a.

At this time, the top door 121 maintains the open state for a predetermined period of time based on the program setting, and the winder 113 senses a change in the load of the food garbage canister (c) The charge amount is calculated according to the recognition result value, the charge is displayed on the LED display of the controller 31, and the details of the charge are displayed on the LED display 312 or on a separate monitor Or can be verified by the user through the speaker voice.

Also, the top door 121, which has been opened for a predetermined period of time, is automatically closed by the above process, which is also possible by the operation of the actuator 13 described above.

When the top door 121 is closed as described above, the optical sensors 124 provided at the periphery of the guide drum 122 are completely separated from the inlet 122a of the guide drum 122, And if the abnormality is not detected, the top door 121 is closed. As a result, it is possible to prevent the user from being laughable, and it is possible to accurately and quickly detect the amount of food waste stored in the food waste receptacle (c), thereby confirming whether or not the food waste receptacle (c) The process up to now can be understood from FIG. 7A.

The odor generated from the food waste collected in the garbage disposal container c may be generated by operating the blowing fan 23 of the odor removing unit 2 according to the program setting inputted to the control unit 3 The gas staying in the inner space 11a is removed by circulation of the deodorant 22 and the active filter 21 in succession to thereby suppress the contamination of the surrounding environment which may cause user's discomfort to the utmost.

Finally, until the food waste is completely filled in the food waste receptacle (c), the maximum stacking height of the receptacle (c) is measured by a height sensor (not shown) or the weight of the maximum stacking limit 113), the control unit 3, which has transmitted the detection signal, transmits information on the replacement state of the receptacle c to the management system. When the collecting person dispatched from the consignee receiving the information receives the information of the food waste (C) is taken out of the corresponding collecting device (A) to collect food waste, while replacing it with a new container (c) so that the collecting of the quantities can be carried out continuously. 7b.

To summarize, by using the food waste collecting device (A) according to the present invention installed at a predetermined base point of a collective building such as a shopping mall or an apartment complex, it is possible to make it easier for residents of the area to collect the food waste In addition, electronic payment using credit card or smart phone as well as various information related to collection of food waste are available.

In addition, since the management and supervision of the collection device A according to the remote control of the management system using the RFID communication system is facilitated, it is possible to maximize the efficiency of the operation of the contractor and the work efficiency of the collection agent, There is an effect that it is possible to comfortably provide a residential environment through the removal of malodor and the blocking of the propagation of the bacterium using the malodor removing unit 2 which is further equipped.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications may be made without departing from the scope and spirit of the invention.

A: bulk collecting device, 1: device body, 2: odor removing agent
3: control unit, 11: housing, 11a: inner space
11-1: a curved portion, 12: an upper cover, 13: an actuator
14: canopy, 21: active filter, 22: deodorant
23: blowing fan, 31: controller, 32: hardware
33: CDMA modem, 111: Front door, 112: Accessory case
113: Relief device, 113-1: Lift, 114: Swash plate
115: door regulator, 1115-1: first hinge piece, 115-2: second hinge piece
116: Camgirl, 116-1: Stationary, 116-2: Towing
117: magnetic sensor, 118: first locking member, 119: limit sensor
121: Top door, 121: Guide drum, 121a:
123: second locking member, 124: optical sensor, 311: RFID card reader
312: LED display

Claims (12)

A main body of the apparatus capable of accommodating the food waste into the receptacle through the housing of the food waste receptacle and the automatic opening and closing of the upper part;
A malodor removing unit installed in the main body of the apparatus to remove odors generated due to food waste decay and eradicate bacteria; And
And a control unit for enabling remote control of the electronic payment and management system for collecting the amount of food waste through device driving and device driving in a state of being linked to the inside and outside of the apparatus main body,
The apparatus main body is provided with an internal space capable of internally receiving the food garbage receptacle,
A box-shaped housing hinged to a front door for opening and closing the front opening,
A top cover hinged to the upper end of the housing to allow food waste to be introduced into the food waste receptacle accommodated in the inner space through opening and closing of the central opening,
And an actuator for automatically opening and closing the top door in accordance with a program executed by the control unit in a state of being connected to the housing and the top cover,
The housing and the front door are provided with a door regulator for preventing door breakage through restriction of the opening and closing range of the front door, a cam guider for preventing the front door from being twisted and being tightened with the front opening, A magnetic sensor for maintaining the closed state of the front door, and a first locking member for manually locking and unlocking the front door.
delete The method according to claim 1,
The malodor removing unit includes an active filter which absorbs gas and moisture to suppress the generation of malodor,
A deodorant adapted to remove the odor,
And a blowing fan for circulating the odor stuck in the apparatus main body to the active filter and the deodorizer.
The method according to claim 1,
The controller includes a controller for inputting a program for driving the apparatus, an IC chip of a credit card or an NFC chip of a smart phone, an RFID card reader and an LED display for inputting and outputting information by the RFID system,
Hardware for being installed in the main body of the apparatus and executing programs for system operation and system interfacing,
And a CDMA modem for transmitting and receiving data through a remote control of the management system and a server in a state of being further incorporated in the apparatus main body.
The method according to claim 1,
Wherein the canopy is further assembled on the upper cover to prevent rainwater from penetrating into the inner space of the housing when raining.
The method according to claim 1,
Wherein both side edge portions where the bottom plate and the side plate of the housing meet each other are formed as curved curved portions for cleaning and drainage of the bottom of the inner space.
The method according to claim 1,
Wherein the front part of the housing is formed by tilting the food waste receptacle backward at an inclination angle of 5 degrees so as to push or pull the food waste receptacle into the internal space.
The method according to claim 1,
The top cover includes the top door,
A guide drum having an inlet port through which food waste can be introduced when the top door is opened,
And a second locking member coupled to the top door to lock and unlock the top door by using protrusions that advance by power supply by execution of a program of the control unit,
A plurality of optical sensors are installed around the guide drum for sensing the amount of food waste collected by converting light itself or information contained in the light into electric signals and preventing the user from getting sick when the top door is lowered Wherein the food garbage collecting device comprises:
The method according to claim 1,
On the bottom plate of the housing, a winder for measuring the own weight of the food garbage collection container and the amount of food garbage to be loaded therein is mounted,
A lift for placing the food garbage receptacle is provided at the upper end of the meander,
Further comprising a swash plate disposed at the front of the meander to allow the food waste receptacle to enter the internal space and to simply place the food waste receptacle on the lift.
delete The method according to claim 1,
The door regulator includes a plurality of first hinge pieces hinged to an inner surface of one side plate of the housing by a separate bracket,
And a second hinge piece hinged to an inner surface of one side of the front door by a separate bracket, the other side being connected to the front end of the first hinge piece in a rotatable state.
The method according to claim 1,
Wherein the cam guill has a mounting piece integrally attached to an inner surface of a rotary side of the front door,
And a traction piece which is attached to one side of the front opening portion of the housing in an "a" shape so as to be held by the mounting piece when the front door is closed.

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