KR101958944B1 - Door opening and closing apparatus using a permanent magnet - Google Patents

Door opening and closing apparatus using a permanent magnet Download PDF

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Publication number
KR101958944B1
KR101958944B1 KR1020150180382A KR20150180382A KR101958944B1 KR 101958944 B1 KR101958944 B1 KR 101958944B1 KR 1020150180382 A KR1020150180382 A KR 1020150180382A KR 20150180382 A KR20150180382 A KR 20150180382A KR 101958944 B1 KR101958944 B1 KR 101958944B1
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KR
South Korea
Prior art keywords
door
permanent magnet
opening
rear end
closing
Prior art date
Application number
KR1020150180382A
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Korean (ko)
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KR20170072430A (en
Inventor
채형원
Original Assignee
(주)토탈베이커리시스템
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Priority to KR1020150180382A priority Critical patent/KR101958944B1/en
Publication of KR20170072430A publication Critical patent/KR20170072430A/en
Application granted granted Critical
Publication of KR101958944B1 publication Critical patent/KR101958944B1/en

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
    • E05C19/165—Devices holding the wing by magnetic or electromagnetic attraction released by pushing in the closing direction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/0042—For refrigerators or cold rooms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F9/00—Means for operating wings by hand rods not guided in or on the frame, including those which also operate the fastening
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/36—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a single vertical axis of rotation at one side of the opening, or swinging through the opening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Thermal Sciences (AREA)
  • Refrigerator Housings (AREA)

Abstract

The present invention relates to a door opening and closing apparatus using permanent magnets, and is very simple in configuration, and also makes it possible to increase the sealing force of the door by strengthening the magnetic force of the permanent magnet and to prevent the door from being opened easily during use, It is an object of the present invention to provide a door opening / closing apparatus using a permanent magnet having a special structure which allows a door to easily open and open with a simple operation of vertically lifting the lower end of the handle.
In order to achieve the above object, a door opening and closing apparatus using permanent magnets according to the present invention basically comprises a hinge (11) coupled to a front side of a door (20) And the other side of the door 20 is attached to the front surface of the object 10 by the magnetic force of the permanent magnet and is kept closed. ,
The opening and closing means includes a fixed bracket 100 fixedly installed to penetrate a pair of right and left fixing pieces 110 having a pin coupling hole on the other side of the door 20,
The intermediate portion is hinged by the hinge pin 30 fitted in the pin coupling hole 111 provided in the pair of fixing pieces 110 of the fixed bracket 100 so that the center portion is hinged around the hinge pin 30 300a and a rear end 300b of the operating member 300,
A handle 400 fixed to the rear end of the operation member 300 and positioned on the outer surface of the other side of the door 20,
The permanent magnet 500 and the iron piece 600 fixedly installed on the front surface of the fixed bracket 100, the inner surface of the door 20, or the front surface of the openable / ≪ / RTI >
When the lower end of the handle 400 is lifted to lift the rear end 300b of the actuating member 300 when the door 20 keeping the closed state by the magnetic force of the permanent magnet 500 is lifted, The permanent magnet 500 pushes down the permanent magnet 500 or the iron piece 600 installed on the opening and closing object body 10 while being lowered about the hinge pin 310 and projecting forward, So that the door 20 is opened and closed off from the iron piece.

Description

[0001] The present invention relates to a door opening and closing apparatus using a permanent magnet,

The present invention relates to a door opening / closing device using a permanent magnet, and more particularly, to a door opening / closing device having a special structure using a permanent magnet, thereby increasing the magnetic force of the permanent magnet to improve the sealing efficiency of the door The present invention relates to a door opening / closing apparatus using a permanent magnet for opening a door easily and easily even with a small force when the door is opened.

Generally, a door is provided in an open / close object body such as an oven, a cold, a warm or a microwave oven, and an opening / closing device for keeping the door closed is provided. Of these, That is, there is a door opening / closing apparatus using a permanent magnet using magnetic force.

However, in order to increase the sealing force of the door for sealing the opening / closing target object body, the conventional door opening and closing apparatus using the permanent magnet has to use a permanent magnet having a large magnetic force or to arrange a plurality of permanent magnets uniformly at a predetermined position However, the problem of these is that it is possible to increase the sealing force of the door, but on the contrary, it takes a lot of force to open the door, which makes it difficult to open the door.

Therefore, when the opening / closing target body is small and light in weight, it may cause a safety accident because the opening / closing object main body comes together at the same time when the door is opened, There was concern.

Therefore, it is difficult to increase the sealing force of the door only by using the conventional permanent magnet using the conventional permanent magnet, and the problem that the door is opened too easily during use can not be solved.

In this case, as disclosed in Korean Patent Laid-Open Publication No. 10-2002-27721, a door is formed with a separate locking device in addition to the permanent magnet, or the door is moved forward or backward by using an electromagnet as in Korean Patent Registration No. 10-1480459, A door automatic opening / closing device has been proposed. However, all of them are very complicated in structure and have many problems in installation and use and are not used at present.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to provide a magnetic bearing device which is very simple in configuration but also has a strong magnetic force of a permanent magnet to increase the sealing force of the door, And it is an object of the present invention to provide a door opening / closing device using a permanent magnet having a special structure that allows the door to easily open and open with a simple operation of lifting the handle vertically when opening.

The object of the present invention to solve the above-mentioned problems is to provide a hinge mechanism which is basically constructed such that one side of a door 20 is connected to a front surface of an object 10 to be opened and closed and the other side is opened and closed around a hinge 11, 20 are attached to the front surface of the opening and closing body 10 by the magnetic force of the permanent magnet to form an opening and closing device having opening and closing means for maintaining the closed state,

The opening and closing means includes a fixed bracket 100 fixedly installed to penetrate a pair of right and left fixing pieces 110 having a pin coupling hole on the other side of the door 20,

The intermediate portion is hinged by the hinge pin 30 fitted in the pin coupling hole 111 provided in the pair of fixing pieces 110 of the fixed bracket 100 so that the center portion is hinged around the hinge pin 30 300a and a rear end 300b of the operating member 300,

A handle 400 fixed to the rear end of the operation member 300 and positioned on the outer surface of the other side of the door 20,

The permanent magnet 500 and the iron piece 600 fixedly installed on the front surface of the fixing bracket 100 or the front surface of the door 20 or the front surface of the opening and closing body 10, ≪ / RTI >

When the lower end of the handle 400 is lifted to lift the rear end 300b of the actuating member 300 when the door 20 keeping the closed state by the magnetic force of the permanent magnet 500 is lifted, The permanent magnet 500 pushes down the permanent magnet 500 or the iron piece 600 installed on the opening and closing object body 10 while being lowered about the hinge pin 310 and projecting forward, And a door opening / closing device using a permanent magnet made to open and close the door 20 away from the iron piece.

The door opening / closing apparatus using the permanent magnet of the present invention has advantages that the opening and closing of the door is easy even when the opening and closing object body is large and heavy and the strength of the permanent magnet is increased or the door is installed in various places.

In addition, when the opening / closing target object body is small and light in weight, the magnetic force of the permanent magnets is heightened, the position of the opening / closing object main body is deteriorated at the time of door opening / closing, It is difficult to increase the sealing force of the door and it is difficult to open the door during use so that the door can be opened easily There is an advantage that it is possible to completely solve the problem that the use efficiency is lowered.

In other words, even if the strength of the magnetic force of the permanent magnet is strengthened, if the lower end of the handle is lifted at the time of opening the door, the rear end of the operating member simultaneously moves up and down, The permanent magnet can be separated from the iron piece by the pushing force, and the door can be easily opened with a small force,

When the door is closed after removing the processed food or the stored food from the opening / closing body of the object to be opened / closed or by inserting new material, the permanent magnet is attached to the iron piece installed on the opening / closing body by the strong magnetic force, It is possible to provide a sealing force, thereby completely preventing the inside air from being discharged to the outside, and preventing the outside air from intruding into the inside of the opening / closing target body at all, thereby increasing the use efficiency. .

Therefore, it can be used safely and conveniently for a long time.

1 to 4 are schematic views showing an embodiment of the present invention,
1 is a perspective view of an assembled state.
Fig. 2 is a state in which recesses are decomposed. Fig.
Fig. 3 is an exemplary side view showing the door closed. Fig.
Fig. 4 is an exemplary side view showing a state in which the door is opened; Fig.

The door opening and closing apparatus using the permanent magnet of the present invention can maintain the closed state of the door in a state where the sealing force is increased by the strong magnetic force of the permanent magnet normally,

When the door is opened, the lower end of the handle is lifted up vertically, the rear end of the operating member is lifted and the front end is lowered, pushing the iron piece provided on the opening and closing object main body and the permanent magnet moves away from the iron piece, So that it can be easily opened and closed.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. It is to be understood that the exemplary embodiments described below are provided for illustrative purposes only, and that the present invention may be embodied with various modifications and alterations. In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention. In addition, the attached drawings are not drawn to scale in order to facilitate understanding of the invention, but the dimensions of some of the components may be exaggerated.

1 to 4, a door opening / closing apparatus using permanent magnets according to the present invention includes a hinge 11 coupled to one side of a door 20 on a front surface of an openable / And the other side of the door 20 is attached to the front surface of the object 10 by the magnetic force of the permanent magnet and is kept closed. ,

The opening and closing means includes a fixed bracket 100 fixedly installed to penetrate a pair of right and left fixing pieces 110 having a pin coupling hole on the other side of the door 20,

The intermediate portion is hinged by the hinge pin 30 fitted in the pin coupling hole 111 provided in the pair of fixing pieces 110 of the fixed bracket 100 so that the center portion is hinged around the hinge pin 30 300a and a rear end 300b of the operating member 300,

A handle 400 fixed to the rear end of the operation member 300 and positioned on the outer surface of the other side of the door 20,

The permanent magnet 500 and the iron piece 600 fixedly installed on the front surface of the fixing bracket 100 or the front surface of the door 20 or the front surface of the opening and closing body 10, ≪ / RTI >

When the lower end of the handle 400 is lifted to lift the rear end 300b of the actuating member 300 when the door 20 keeping the closed state by the magnetic force of the permanent magnet 500 is lifted, The permanent magnet 500 pushes down the permanent magnet 500 or the iron piece 600 installed on the opening and closing object body 10 while being lowered about the hinge pin 310 and projecting forward, So that the door 20 is opened and closed from the iron piece.

The present invention is characterized in that the fixing bracket 100 is fixedly installed at a rear end of a pair of fixing pieces 110 or a door 20 by fixing means such as bolt or welding and the rear end of the operation member 300 is inserted A guide elongated hole 210 for preventing the distal end portion of the handle 400 from touching the surface of the door 20 and being broken when the handle 400 is operated up and down, The safety device 200 may further include a safety device 200. [

The distal end 300a of the actuating member 300 is formed to be higher than the rear end 300b of the actuating member 300 so that the tip 300a of the actuating member 300 when the door 20 is opened is centered on the hinge pin 310 The lowering radius of rotation, that is, the protruding distance of the tip 300a, is made larger so that the permanent magnet 500 and the iron piece 600 can be easily separated from each other.

The openable / closable object main body 10 may include, for example, an oven, a cold, a warm room, a microwave oven, and the like.

Hereinafter, a state in which the door opening / closing device using the permanent magnet of the present invention is installed will be described in detail.

A fixing bracket 100 is fixed to the inner surface of the other side of the door 20 by a screw 101. An actuating member 300 is inserted into a pair of fixing pieces 110 formed on the fixing bracket 100, And an intermediate portion of the operation member 300 is hinged by a hinge pin 310 coupled to the pin coupling hole 111 of the fixing piece 110. [

The rear end 300b of the operation member 300 is fixed to the handle 400 so that the handle 400 is not separated from the rear end of the rotary shaft 300 by the set screw 410. [

The rear end of the actuating member is fixed to a rear end of a pair of fixed pieces 110 of the fixed bracket 100 or to a door 20 by fixing means such as bolt or welding, (Not shown).

Meanwhile, in the present invention, the positions of the permanent magnet 500 and the iron pieces 600, the installation place and the installation number may be changed as necessary.

Hereinafter, the operating state of the door opening / closing apparatus using the permanent magnet according to the present invention will be described.

3 is a side sectional view showing a state in which the door is closed.

The permanent magnet 500 fixed to the inner surface of the door 20 is attached to the iron piece 600 provided on the opening and closing target object 10 by a strong magnetic force so that the door 20 is closed At this time, since the permanent magnet 500 has a strong magnetic force, the sealing force is increased, so that the inside air is completely prevented from being discharged to the outside, and outside air can not penetrate into the inside of the opening / closing target body 10 at all.

Further, since the door 20 is not opened easily during use, it is stable.

4, when the handle 400 protruded to the outside of the door 20 is lifted and the lower end is lifted, the rear end 300b of the handle 400 is fixed to the handle 400 by the set screw The rear end 300b of the actuating member 300 fixed to the upper end of the hinge pin 310 is simultaneously lifted and lowered around the hinge pin 310. At this time, the distal end 300a of the actuating member 300 is downwardly protruded forward.

The distal end 300a of the actuating member 300 protrudes forward of the permanent magnet 500 and pushes the iron piece 600 installed on the opening and closing object body 10 and causes the permanent magnet 500 to rotate with the iron piece 600 ) Very easily.

Accordingly, even if the magnetic force of the permanent magnet 500 is strong, the door 20 can be easily and easily opened with a small force.

Meanwhile, since the rear end of the actuating member 300 is inserted into the guide slot 210 of the safety catch 200 during operation of the actuating member 300, The front end of the handle 400 is prevented from touching the surface of the door 20 and being damaged when the handle 400 is vertically operated.

When the hand holding the handle 400 is released after the door 20 is opened and closed, the rear end of the operation member 300 is lowered about the hinge pin 310 by the self weight of the handle 400, It is in place.

When the door 20 is opened and then the door 20 is closed after removing the food or the stored food or the like in the object 10 to be opened or closed, The door 20 is closed while being attached to the iron piece 600 provided on the opening / closing body 10. Since the permanent magnet 500 has relatively strong magnetic force at this time, the door 20 has improved sealing performance.

Therefore, the inside air is completely prevented from being discharged to the outside, and the outside air can not penetrate into the opening / closing target object body 10 at all, and the use efficiency is increased.

As described above, the present invention has been described by reference to the preferred embodiments and drawings, but it should be understood that the present invention is not limited to these embodiments, and various changes and modifications may be made without departing from the spirit and scope of the present invention by those skilled in the art. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the appended claims.

10: opening and closing object body 11: hinge
20: Door 100: Fixed bracket
101: screw 110:
111: Pin coupling hole 200: Safety part
210: guide elongated member 300: operative member
300a: leading end 300b: trailing end
310: Hinge pin 400: Handle
410: set screw 500: permanent magnet
600: Iron piece

Claims (3)

The hinge 11 is coupled to one side of the door 20 on the front face of the opening and closing object main body 10 so that the other side of the door 20 is opened and closed with the hinge 11 as the center, Closing device attached to the front surface of the object main body 10 and having an opening / closing means for maintaining the closed state,
The opening and closing means includes a fixed bracket 100 fixedly installed to penetrate a pair of right and left fixing pieces 110 having a pin coupling hole on the other side of the door 20,
The intermediate portion is hinged by the hinge pin 310 fitted in the pin coupling hole 111 provided in the pair of fixing pieces 110 of the fixed bracket 100 so that the center portion is hinged around the hinge pin 310 300a and a rear end 300b of the operating member 300,
A handle 400 fixed to the rear end of the operation member 300 and positioned on the outer surface of the other side of the door 20,
The permanent magnet 500 and the iron piece 600 fixedly installed on the front surface of the fixed bracket 100, the inner surface of the door 20, or the front surface of the openable / ≪ / RTI >
When the lower end of the handle 400 is lifted to lift the rear end 300b of the actuating member 300 when the door 20 keeping the closed state by the magnetic force of the permanent magnet 500 is lifted, The permanent magnet 500 pushes down the permanent magnet 500 or the iron piece 600 installed on the opening and closing object body 10 while being lowered about the hinge pin 310 and projecting forward, The door 20 is opened and closed from the iron piece,
A rear end portion of the operation member 300 is coupled to the rear end of the pair of fixed brackets 110 of the fixed bracket 100 or the door 20 by a fixing means such as bolt or welding, Which is provided with a guide elongated hole 210 for preventing the distal end portion of the handle 400 from being damaged due to contact with the surface of the door 20 in the vertical operation of the handle 400 by restricting the vertical movement height of the rear end of the door 300, 200,
The operation member 300 is formed such that the tip 300a of the operation member 300 is bent higher than the rear end 300b and the tip 300a of the operation member 300 is lowered about the hinge pin 310 when the door 20 is opened And the distance between the permanent magnet (500) and the iron piece (600) is increased by increasing the radius of rotation of the permanent magnet (500) and the protruding distance of the tip (300a). delete delete
KR1020150180382A 2015-12-16 2015-12-16 Door opening and closing apparatus using a permanent magnet KR101958944B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150180382A KR101958944B1 (en) 2015-12-16 2015-12-16 Door opening and closing apparatus using a permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150180382A KR101958944B1 (en) 2015-12-16 2015-12-16 Door opening and closing apparatus using a permanent magnet

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KR20170072430A KR20170072430A (en) 2017-06-27
KR101958944B1 true KR101958944B1 (en) 2019-03-19

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180134564A (en) 2017-06-09 2018-12-19 현대자동차주식회사 Variable belt tensioner for engine and method for controlling mild hybrid vehicle using variable belt tensioner for engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005120769A (en) * 2003-10-20 2005-05-12 Miwa Lock Co Ltd Push pull lock for door

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990038665U (en) * 1998-03-30 1999-10-25 윤종용 Refrigerator Door

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005120769A (en) * 2003-10-20 2005-05-12 Miwa Lock Co Ltd Push pull lock for door

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