WO2007018395A1 - Bidirectional opening and closing controllable door hinge - Google Patents

Bidirectional opening and closing controllable door hinge Download PDF

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Publication number
WO2007018395A1
WO2007018395A1 PCT/KR2006/003105 KR2006003105W WO2007018395A1 WO 2007018395 A1 WO2007018395 A1 WO 2007018395A1 KR 2006003105 W KR2006003105 W KR 2006003105W WO 2007018395 A1 WO2007018395 A1 WO 2007018395A1
Authority
WO
WIPO (PCT)
Prior art keywords
shafts
control
door
hinge
pusher
Prior art date
Application number
PCT/KR2006/003105
Other languages
French (fr)
Inventor
Geun-Weon Lee
Hiy-Gil Lee
Original Assignee
Geun-Weon Lee
Hiy-Gil Lee
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Geun-Weon Lee, Hiy-Gil Lee filed Critical Geun-Weon Lee
Publication of WO2007018395A1 publication Critical patent/WO2007018395A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/48—Suspension arrangements for wings allowing alternative movements
    • E05D15/50—Suspension arrangements for wings allowing alternative movements for opening at either of two opposite edges
    • E05D15/505—Suspension arrangements for wings allowing alternative movements for opening at either of two opposite edges by radial separation of the hinge parts at the hinge axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/022—Doors that can be pivoted either left-handed or right-handed

Definitions

  • the present invention relates to a bidirectional opening and closing controllable door hinge which can make a door opened and closed bidirectionally to the left and right.
  • an object of the present invention to provide a bidirectional opening and closing controllable door hinge having advantages of a small number of components, an easy fabrication, a simple structure, a less out-of-trouble, and an easy repair and maintenance.
  • a bidirectional opening and closing controllable door hinge which can make a door (1) opened and closed in any one direction through accommodation and secession of hinge shafts (12A, 12B) which are symmetrically installed at the four corners of a door frame (10)
  • the bidirectional opening and closing controllable door hinge comprising: support plates (2OA, 20B) in which control portions (30Al, 30A2, 30Bl, 30B2), pushers (4OA, 40B), stop pins (5OA, 50B), and safety pins (25A, 25B) are symmetrically installed left and right
  • the support plates (2OA, 20B) respectively comprise: control grooves (21A, 21B) with and from which the hinge shafts (12A, 12B) are engaged and disengaged and are formed at the left and right; control portion shafts (22Al, 22A2, 22Bl, 22B2) which are installed to the left and right sides of the control grooves (21A, 21B)
  • stop pin inclined surfaces 52A, 52B
  • stop pin springs 54A, 54B
  • safety pins 25A, 25B
  • safety pin hinges 27Al, 27A2, 27Bl, 27B2
  • safety pin springs 26A, 26B
  • the bidirectional opening and closing controllable door hinges are mounted on top and bottom of a door. Accordingly, hinge shafts which are symmetrically installed at the four corners of a door frame can be accommodated in or seceded from the bidirectional opening and closing controllable door hinges, respectively, which can make a door opened and closed in any one direction of left and right of the door . Control portions, pushers, stop pins, and safety pins are symmetrically installed left and right in the bidirectional opening and closing controllable door hinge. If a door is opened in any one side of left and right, one control portion is opened by one hinge shaft, and the pusher connected to the one control portion is pushed out.
  • the stop pin abutting the pusher is operated to thus close the other pusher.
  • the other control portion connected to the closed pusher is also closed with the hinge shaft accommodated,- so that the hinge shaft functions only as the rotational shaft.
  • the control portions at the opened side are closed while accommodating one hinge shaft, and the pusher and the stop pin are returned to the original positions. Since the bidirectional opening and closing controllable door hinges are symmetrical left and right, the control portions of one side are opened and those of the other side function necessarily as the rotational shafts regardless of whether the door is opened to the left or right. That is, both the control portions are not simultaneously opened.
  • FIG. 1 is a disassembled perspective view showing a bidirectional opening and closing controllable door hinge according to an embodiment of the present invention.
  • FIG. 2 is a disassembled perspective view showing stop pins, control portions, and pushers in FIG. 1.
  • FIG. 3 is a plan view showing the combination state of the control portions, the pushers, and the stop pins when a door has been closed in FIG. 1.
  • FIG. 4 is a plan view showing the operational state of the control portions, the pushers, and the stop pins when the left side of a door has been opened in FIG. 1.
  • FIG. 5 is a plan view showing the operational state of the control portions, the pushers, and the stop pins when the right side of a door has been opened in FIG. 1.
  • FIG. 6 is an enlargement view showing the pushers and the stop pins in FIG. 1.
  • FIG. 7 is a cross-sectional view showing the state where safety pins are pushed to the lower portion of the stop pins by hinge shafts when the door has been closed in FIG. 1.
  • FIG. 8 is a cross-sectional view for explaining the actions of the safety pins so that the opened control portions are not arbitrarily closed when the door has been opened in FIG. 1.
  • FIG. 9 is a cross-sectional view for explaining the actions of the safety pins so that the opened control portions are not arbitrarily closed when the door has been opened in FIG. 1.
  • FIG. 10 is a rear view of FIG. 9.
  • a bidirectional opening and closing controllable door hinge includes hinge shafts 12A and 12B which are installed in the four corners of a door frame 10, and function as rotating shafts, control portions 30Al, 30A2, 30Bl and 30B2 which regulate accommodation and secession of the hinge shafts 12A and 12B, and stop pins 5OA and 5OB which are symmetrically installed in the left and right sides and control the control portions 30Al, 30A2, 30Bl and 30B2.
  • the bidirectional opening and closing controllable door hinge can make a door 1 opened and closed in any one direction through accommodation and secession of the hinge shafts 12A and 12B.
  • the bidirectional opening and closing controllable door hinges are installed on top and bottom of a door 1, respectively.
  • the bidirectional opening and closing controllable door hinge according to the present invention is symmetrical left and right in its structure and function, and upper and lower support plates 2OA and 20B are also of an identical structure .
  • a support plate 2OA which is an essential component of the bidirectional opening and closing controllable door hinge will be described later.
  • the support plate 2OA is a basic panel on which control portions 30Al, 30A2, 30Bl and 30B2, pushers 4OA and 40B, stop pins 5OA and 5OB, and safety pins 25A and 25B are symmetrically installed left and right.
  • control grooves 2IA and 21B with and from which the hinge shafts 12A and 12B are engaged and disengaged left and right are formed in the support plate 2OA.
  • Control portion shafts 22Al, 22A2, 22Bl and 22B2, guiding shafts 23A and 23B, and stop pin shafts 24A and 24B are formed on the upper surface of the support plate 2OA.
  • the control portion shafts 22Al, 22A2, 22Bl and 22B2 which are also installed to the left and right sides of the control grooves 21A and 21B, the guiding shafts 23A and 23B which guide movement to left and right of the pushers 4OA and 4OB, and the stop pin shafts 24A and 24B protrude from the upper surface of the support plate 2OA.
  • Safety pin hinges 27Al, 27A2, 27Bl and 27B2 and support bars 28A and 28B are formed on the lower surface of the support plate 20A.
  • the safety pin hinges 27Al, 27A2, 27Bl and 27B2 are symmetrically installed to the left and right of the entrance of the control grooves 21A and 21B, and the support bars 28A and 28B are installed across the inner sides of the control grooves 21A and 21B, respectively.
  • control portions 30Al, 30A2, 30Bl and 30B2 each include a ring formed of two semi-circular ring halves, and having an inner throughhole through which the hinge shafts 12A and 12B can be respectively accommodated.
  • control portion shafts 22Al, 22A2, 22Bl and 22B2 of the support plate 2OA are inserted into control portion holes 31Al, 31A2, 31Bl and 31B2, respectively, so that the support plate 2OA is rotated left and right around the control portion shafts 22Al, 22A2, 22Bl and 22B2 and the control portions 30Al, 30A2, 30Bl and 30B2 are opened and closed left and right.
  • the tails of the control portions 30Al, 30A2, 30Bl and 30B2 are cut into half the thickness up and down so as to be overlapped over each other, and pusher shafts 32A and 32B protrude from the inner control portions 30A2 and 30Bl.
  • the pushers 4OA and 4OB are formed of a flat bar, respectively.
  • pusher holes 41A and 41B which pushing shafts 32A and 32B of the control portions 30A2 and 30Bl oppose and on the other end thereof are formed pusher inclined surfaces 42A and 42B in which the width of the respective pushers 4OA and 40B is cut into half by the diameter of the respective hinge shafts 12A and 12B from pusher end surfaces 43A and 43B and then is cut into an inclined surface at approximately 45°slope, to form the pusher inclined surfaces 42A and 42B.
  • stop pins 5OA and 5OB are rotatable since stop pin shafts 24A and 24B protruded from the support plate 20A, are respectively inserted into stop pin holes 51A and 51B, and then closely contact the pushers 4OA and 4OB by elastic forces of stop pin springs 54A and 54B.
  • stop pin inclined surfaces 52A and 52B are formed by cutting stop pin end surfaces 53A and 53B at approximately 45 ° slope, and overlap the pusher inclined surfaces 42A and 42B, respectively.
  • the corners of the stop pin end surfaces 53A and 53B are close to and symmetrical with those of opposing pusher end surfaces 43B and 43A, respectively.
  • safety pins 25A and 25B are inserted into safety pin hinges 27Al, 27A2, 27Bl and 27B2 which are installed on the lower surface of the support plate 2OA, in the form of an L-letter, so as to rotate up and down and safety pin springs 26A and 26B are pulled toward the support plates 2OA, respectively to thereby control the control portions 30Al, 30A2, 30Bl and 30B2.
  • the operation of the bidirectional opening and closing controllable door hinge will be descried below.
  • the left side hinge shaft 12A secedes from the control groove 21A of the support plate 2OA, and the control portions 30Al and 30A2 are opened to the left and right, respectively.
  • the pusher 4OA which has been inserted into the pusher shaft 32A moves to an arrow direction ( ⁇ ) , that is, to the right in FIG. 4, and the stop pin inclined surface 52A of the stop pin 5OA overlapping the pusher inclined surface 42A is pushed up.
  • the end surface 53A of the stop pin 5OA which has been pushed up blocks a right pusher end surface 43B so that the right pusher 4OB does not move. Accordingly, the right control portions 30Bl and 30B2 accommodate the hinge shaft 12B together with the right control groove 21B, and thus they are closed so as not to be opened.
  • the safety pin 25A pressed down by the hinge shaft 12A in the form shown in FIG. 7 is directed downwards from the hinge shaft 12A and is pulled up to the support plate 2OA until the safety pin spring 26A contacts the support bar 28A, as shown in FIGS. 8 and 9.
  • the end portion of the safety pin 25A rises up to the tail end of the opened control portions 30Al and 30A2 passing the control groove 21A and controls the control portions 30Al and 30A2 no to be closed.
  • the hinge shaft 12A enters the opened control portions 30Al and 30A2.
  • the bottom of the hinge shaft 12A presses the semicircular upper portion of the safety pin 25A so as to be pushed out to the lower portion of the support plate 2OA, to thereby release the tail ends of the controlled control portions 30Al and 30A2 as shown in FIG. 7.
  • the control portions 30Al and 30A2 are closed.
  • the control portions 30Al and 30A2 accommodate the hinge shaft 12A.
  • the pusher 4OA is pushed to the left side and comes back to the original location.
  • the stop pin 5OA also adheres closely to the pusher 4OA by elasticity of the stop pin spring 54A.
  • the right hinge shaft 12B secedes from the control groove 21B, and opens the control portions 30Bl and 30B2, as shown in FIG. 5.
  • the pusher 4OB moves to an arrow direction ( ⁇ —) , that is, to the left in FIG. 5, and the stop pin inclined surface 52B of the stop pin 5OB overlapping the pusher inclined surface 42B is pushed up.
  • the end surface 53B of the stop pin 5OB which has been pushed up blocks a left pusher end surface 43A so that the left control portions 30Al and 30A2 are closed so as not to move.
  • the left side hinge shaft 12A acts only as the axis of rotation.
  • the safety pin 25B becomes free from the hinge shaft 12B and rises up.
  • the opened control portions 30Bl and 30B2 are controlled so as not to be closed, respectively.
  • the right hinge shaft 12B enters the opened control portions 30Bl and 30B2.
  • the safety pin 25B is pressed down from the support plate 2OA so as to be pushed out, as shown in FIG. 7. Then, if the inner portions of the overlapped control portions 30Bl and 30B2 are pushed, the control portions 30Bl and 30B2 are closed, and the pusher 4OB moves to the right side and comes back to the original location, as shown in FIG. 3.
  • the stop pin 5OB also adheres closely to the pusher 4OB by elasticity of the stop pin spring 54B.
  • the right control portions 30Bl and 30B2 accommodate the right hinge shaft 12B with the right control groove 21B, and simultaneously is closed. Accordingly, the right hinge shaft 12B acts only as the axis of rotation. If the right side of the door 1 is opened, the left control portions 30Al and 30A2 accommodate the left hinge shaft 12A with the left control groove 21A, and simultaneously is closed. Accordingly, the left hinge shaft 12A acts only as the axis of rotation.
  • the stop pin of one side blocks the pusher of the other side to block the control portion. Therefore, only when any one side of the left and right sides of a door is selected, the door can be opened, but both sides of the door are not opened simultaneously.
  • the bidirectional opening and closing controllable door hinge according to the present invention has advantages of a small number of components, an easy fabrication, a simple structure, a less out-of-trouble, and an easy repair and maintenance.
  • the present invention provides a bidirectional opening and closing controllable door hinge which can be applied to various kinds of doors.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Hinges (AREA)
  • Refrigerator Housings (AREA)

Abstract

Provided is a bidirectional opening and closing controllable door hinge which can make a door opened and closed bidirectionally. The door hinge includes hinge shafts which are installed in the four corners of a door frame, and function as rotating shafts, control portions which regulate accommodation and secession of the hinge shafts, and stop pins which are symmetrically installed in the left and right sides and control the control portions. The door hinges are installed on top and bottom of a door. When the door is opened at its one side, the control portion of the opened side secedes the hinge shafts, and the control pin of the opened side blocks up the opposing control portion. The hinge shafts accommodated in the control portions function only as the rotating shafts.

Description

BIDIRECTIONAL OPENING AND CLOSING CONTROLLABLE DOOR HINGE
Technical Field
The present invention relates to a bidirectional opening and closing controllable door hinge which can make a door opened and closed bidirectionally to the left and right.
Background Art
Prior art references for door hinges which can make a door bidirectionally opened and closed are disclosed in Japanese patent laid-open publication No. Sho 63-114288 and U.S. patent No. 5,064,255. The bidirectional opening and closing controllable door hinge disclosed in the Japanese patent laid-open publication No. Sho 63-114288 and U.S. patent No. 5,064,255, exposes a number of problems including insufficient and incomplete operations, a complicated structure caused by a number of components, and many difficulties in maintenance and repair.
Disclosure of the Invention To solve the above problems, it is an object of the present invention to provide a bidirectional opening and closing controllable door hinge having advantages of a small number of components, an easy fabrication, a simple structure, a less out-of-trouble, and an easy repair and maintenance. To accomplish the above object of the present invention, according to an aspect of the present invention, there is provided a bidirectional opening and closing controllable door hinge which can make a door (1) opened and closed in any one direction through accommodation and secession of hinge shafts (12A, 12B) which are symmetrically installed at the four corners of a door frame (10) , the bidirectional opening and closing controllable door hinge comprising: support plates (2OA, 20B) in which control portions (30Al, 30A2, 30Bl, 30B2), pushers (4OA, 40B), stop pins (5OA, 50B), and safety pins (25A, 25B) are symmetrically installed left and right, and wherein the support plates (2OA, 20B) respectively comprise: control grooves (21A, 21B) with and from which the hinge shafts (12A, 12B) are engaged and disengaged and are formed at the left and right; control portion shafts (22Al, 22A2, 22Bl, 22B2) which are installed to the left and right sides of the control grooves (21A, 21B) , guiding shafts (23A, 23B) which guide movement to left and right of the pushers (40A, 40B), and stop pin shafts (24A, 24B), all of which are formed on the upper surface of the support plates (2OA, 20B) and protrude from the upper surface of the support plates (2OA, 20B), respectively; and safety pin hinges (27Al, 27A2, 27Bl, 27B2) which are symmetrically installed to the left and right of the entrance of the control grooves (21A, 21B) , and support bars (28A, 28B) which are installed across the inner sides of the control grooves (21A, 21B) , respectively, both of which are formed on the rear surface of the support plates (2OA, 20B) , wherein the control portions (30Al, 30A2, 30Bl, 30B2) each comprising a ring formed of two semi-circular ring halves, and having an inner throughhole through which the hinge shafts (12A, 12B) can be respectively accommodated, in which the control portion shafts (22Al, 22A2, 22Bl, 22B2) are inserted into control portion holes (31Al, 31A2, 31Bl, 31B2), so that the control portions (30Al, 30A2, 30Bl, 30B2) are opened and closed left and right, the tails of the control portions (30Al, 30A2, 30Bl, 30B2) are cut into half the thickness up and down so as to be overlapped over each other, and pusher shafts (32A, 32B) which protrude from the inner control portions (30A2, 30Bl), wherein on one end of the pushers (4OA, 40B) are respectively formed pusher holes (41A, 41B) through which pushing shafts (32A 32B) are inserted and on the other end thereof are formed pusher inclined surfaces (42A, 42B) in which the width of the respective pushers (4OA, 40B) is cut into half by the diameter of the respective hinge shafts (12A, 12B) from pusher end surfaces (43A, 43B) and then is cut into an inclined surface at approximately 45°slope, to form the pusher inclined surfaces (42A, 42B) , wherein the stop pins (5OA, 50B) are rotatable since stop pin shafts (24A, 24B) are respectively inserted into stop pin holes
(51A, 51B) , and are cut from stop pin end surfaces (53A, 53B) at approximately 45° slope, to thus form stop pin inclined surfaces (52A, 52B) so as to overlap the pusher inclined surfaces '(42A, 42B), respectively, and then closely contact the pushers (4OA, 40B) by means of stop pin springs (54A, 54B) , and wherein the safety pins (25A, 25B) are rotatably installed to rotate up and down around safety pin hinges (27Al, 27A2, 27Bl, 27B2) in the form of an L-letter, and safety pin springs (26A, 26B) are pulled toward the support plates (20A, 20B) , respectively to thereby control the control portions (30Al, 30A2, 30Bl, 30B2) .
According to the present invention having the above-described structure, the bidirectional opening and closing controllable door hinges are mounted on top and bottom of a door. Accordingly, hinge shafts which are symmetrically installed at the four corners of a door frame can be accommodated in or seceded from the bidirectional opening and closing controllable door hinges, respectively, which can make a door opened and closed in any one direction of left and right of the door . Control portions, pushers, stop pins, and safety pins are symmetrically installed left and right in the bidirectional opening and closing controllable door hinge. If a door is opened in any one side of left and right, one control portion is opened by one hinge shaft, and the pusher connected to the one control portion is pushed out. Accordingly, the stop pin abutting the pusher is operated to thus close the other pusher. The other control portion connected to the closed pusher is also closed with the hinge shaft accommodated,- so that the hinge shaft functions only as the rotational shaft. When the door is closed, the control portions at the opened side are closed while accommodating one hinge shaft, and the pusher and the stop pin are returned to the original positions. Since the bidirectional opening and closing controllable door hinges are symmetrical left and right, the control portions of one side are opened and those of the other side function necessarily as the rotational shafts regardless of whether the door is opened to the left or right. That is, both the control portions are not simultaneously opened.
Brief Description of the Drawings
FIG. 1 is a disassembled perspective view showing a bidirectional opening and closing controllable door hinge according to an embodiment of the present invention.
FIG. 2 is a disassembled perspective view showing stop pins, control portions, and pushers in FIG. 1.
FIG. 3 is a plan view showing the combination state of the control portions, the pushers, and the stop pins when a door has been closed in FIG. 1.
FIG. 4 is a plan view showing the operational state of the control portions, the pushers, and the stop pins when the left side of a door has been opened in FIG. 1.
FIG. 5 is a plan view showing the operational state of the control portions, the pushers, and the stop pins when the right side of a door has been opened in FIG. 1.
FIG. 6 is an enlargement view showing the pushers and the stop pins in FIG. 1.
FIG. 7 is a cross-sectional view showing the state where safety pins are pushed to the lower portion of the stop pins by hinge shafts when the door has been closed in FIG. 1.
FIG. 8 is a cross-sectional view for explaining the actions of the safety pins so that the opened control portions are not arbitrarily closed when the door has been opened in FIG. 1.
FIG. 9 is a cross-sectional view for explaining the actions of the safety pins so that the opened control portions are not arbitrarily closed when the door has been opened in FIG. 1. FIG. 10 is a rear view of FIG. 9.
Best Mode for Carrying out the Invention Hereinbelow, a bidirectional opening and closing controllable door hinge according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings .
Referring to FIGS. 1 through 10, a bidirectional opening and closing controllable door hinge includes hinge shafts 12A and 12B which are installed in the four corners of a door frame 10, and function as rotating shafts, control portions 30Al, 30A2, 30Bl and 30B2 which regulate accommodation and secession of the hinge shafts 12A and 12B, and stop pins 5OA and 5OB which are symmetrically installed in the left and right sides and control the control portions 30Al, 30A2, 30Bl and 30B2. The bidirectional opening and closing controllable door hinge can make a door 1 opened and closed in any one direction through accommodation and secession of the hinge shafts 12A and 12B. The bidirectional opening and closing controllable door hinges are installed on top and bottom of a door 1, respectively. The bidirectional opening and closing controllable door hinge according to the present invention is symmetrical left and right in its structure and function, and upper and lower support plates 2OA and 20B are also of an identical structure .
Accordingly, for convenience of explanation, only components related to any one door hinge are representatively described with reference to the reference numerals. A support plate 2OA which is an essential component of the bidirectional opening and closing controllable door hinge will be described later. The support plate 2OA is a basic panel on which control portions 30Al, 30A2, 30Bl and 30B2, pushers 4OA and 40B, stop pins 5OA and 5OB, and safety pins 25A and 25B are symmetrically installed left and right.
As shown on FIG. 2, control grooves 2IA and 21B with and from which the hinge shafts 12A and 12B are engaged and disengaged left and right are formed in the support plate 2OA. Control portion shafts 22Al, 22A2, 22Bl and 22B2, guiding shafts 23A and 23B, and stop pin shafts 24A and 24B are formed on the upper surface of the support plate 2OA. The control portion shafts 22Al, 22A2, 22Bl and 22B2 which are also installed to the left and right sides of the control grooves 21A and 21B, the guiding shafts 23A and 23B which guide movement to left and right of the pushers 4OA and 4OB, and the stop pin shafts 24A and 24B protrude from the upper surface of the support plate 2OA. Safety pin hinges 27Al, 27A2, 27Bl and 27B2 and support bars 28A and 28B are formed on the lower surface of the support plate 20A. The safety pin hinges 27Al, 27A2, 27Bl and 27B2 are symmetrically installed to the left and right of the entrance of the control grooves 21A and 21B, and the support bars 28A and 28B are installed across the inner sides of the control grooves 21A and 21B, respectively.
Referring to FIG. 2, the control portions 30Al, 30A2, 30Bl and 30B2 each include a ring formed of two semi-circular ring halves, and having an inner throughhole through which the hinge shafts 12A and 12B can be respectively accommodated.
The control portion shafts 22Al, 22A2, 22Bl and 22B2 of the support plate 2OA are inserted into control portion holes 31Al, 31A2, 31Bl and 31B2, respectively, so that the support plate 2OA is rotated left and right around the control portion shafts 22Al, 22A2, 22Bl and 22B2 and the control portions 30Al, 30A2, 30Bl and 30B2 are opened and closed left and right. Moreover, referring to FIG.10, when the control portions 30Al, 30A2, 30Bl and 30B2 are opened, the tails of the control portions 30Al, 30A2, 30Bl and 30B2 are cut into half the thickness up and down so as to be overlapped over each other, and pusher shafts 32A and 32B protrude from the inner control portions 30A2 and 30Bl. Referring to FIG. 6, the pushers 4OA and 4OB are formed of a flat bar, respectively. On one end of the pushers 4OA and 4OB are respectively formed pusher holes 41A and 41B which pushing shafts 32A and 32B of the control portions 30A2 and 30Bl oppose and on the other end thereof are formed pusher inclined surfaces 42A and 42B in which the width of the respective pushers 4OA and 40B is cut into half by the diameter of the respective hinge shafts 12A and 12B from pusher end surfaces 43A and 43B and then is cut into an inclined surface at approximately 45°slope, to form the pusher inclined surfaces 42A and 42B. Referring back to FIG. 2, the stop pins 5OA and 5OB are rotatable since stop pin shafts 24A and 24B protruded from the support plate 20A, are respectively inserted into stop pin holes 51A and 51B, and then closely contact the pushers 4OA and 4OB by elastic forces of stop pin springs 54A and 54B. Referring to FIG. 6, stop pin inclined surfaces 52A and 52B are formed by cutting stop pin end surfaces 53A and 53B at approximately 45° slope, and overlap the pusher inclined surfaces 42A and 42B, respectively. Referring to FIG. 3, the corners of the stop pin end surfaces 53A and 53B are close to and symmetrical with those of opposing pusher end surfaces 43B and 43A, respectively.
Referring back to FIG. 2, the safety pins 25A and 25B are inserted into safety pin hinges 27Al, 27A2, 27Bl and 27B2 which are installed on the lower surface of the support plate 2OA, in the form of an L-letter, so as to rotate up and down and safety pin springs 26A and 26B are pulled toward the support plates 2OA, respectively to thereby control the control portions 30Al, 30A2, 30Bl and 30B2.
The operation of the bidirectional opening and closing controllable door hinge having the above-described structure will follow.
Firstly, in the case where the door 1 is opened to the left, the operation of the bidirectional opening and closing controllable door hinge will be descried below. As shown in FIG. 4, the left side hinge shaft 12A secedes from the control groove 21A of the support plate 2OA, and the control portions 30Al and 30A2 are opened to the left and right, respectively. In this case, the pusher 4OA which has been inserted into the pusher shaft 32A moves to an arrow direction (→) , that is, to the right in FIG. 4, and the stop pin inclined surface 52A of the stop pin 5OA overlapping the pusher inclined surface 42A is pushed up. Then, the end surface 53A of the stop pin 5OA which has been pushed up blocks a right pusher end surface 43B so that the right pusher 4OB does not move. Accordingly, the right control portions 30Bl and 30B2 accommodate the hinge shaft 12B together with the right control groove 21B, and thus they are closed so as not to be opened.
Here, the safety pin 25A pressed down by the hinge shaft 12A in the form shown in FIG. 7 is directed downwards from the hinge shaft 12A and is pulled up to the support plate 2OA until the safety pin spring 26A contacts the support bar 28A, as shown in FIGS. 8 and 9. In this case, the end portion of the safety pin 25A rises up to the tail end of the opened control portions 30Al and 30A2 passing the control groove 21A and controls the control portions 30Al and 30A2 no to be closed.
When the opened door 1 at the left side is closed, the hinge shaft 12A enters the opened control portions 30Al and 30A2. The bottom of the hinge shaft 12A presses the semicircular upper portion of the safety pin 25A so as to be pushed out to the lower portion of the support plate 2OA, to thereby release the tail ends of the controlled control portions 30Al and 30A2 as shown in FIG. 7. If the lateral surface of the continuously advanced hinge shaft 12A pushes the overlapped portion in the inner portions of the control portions 30Al and 30A2, the control portions 30Al and 30A2 are closed. Simultaneously, as shown in FIG. 3, the control portions 30Al and 30A2 accommodate the hinge shaft 12A. Here, the pusher 4OA is pushed to the left side and comes back to the original location. In this case, the stop pin 5OA also adheres closely to the pusher 4OA by elasticity of the stop pin spring 54A.
In the meantime, when the door 1 is opened to the right, the right hinge shaft 12B secedes from the control groove 21B, and opens the control portions 30Bl and 30B2, as shown in FIG. 5. In this case, the pusher 4OB moves to an arrow direction (<—) , that is, to the left in FIG. 5, and the stop pin inclined surface 52B of the stop pin 5OB overlapping the pusher inclined surface 42B is pushed up. Then, the end surface 53B of the stop pin 5OB which has been pushed up blocks a left pusher end surface 43A so that the left control portions 30Al and 30A2 are closed so as not to move. The left side hinge shaft 12A acts only as the axis of rotation. Here, the safety pin 25B becomes free from the hinge shaft 12B and rises up. As shown in FIGS. 8 and 9, the opened control portions 30Bl and 30B2 are controlled so as not to be closed, respectively.
When the opened door 1 at the right side is closed, the right hinge shaft 12B enters the opened control portions 30Bl and 30B2. The safety pin 25B is pressed down from the support plate 2OA so as to be pushed out, as shown in FIG. 7. Then, if the inner portions of the overlapped control portions 30Bl and 30B2 are pushed, the control portions 30Bl and 30B2 are closed, and the pusher 4OB moves to the right side and comes back to the original location, as shown in FIG. 3. In this case, the stop pin 5OB also adheres closely to the pusher 4OB by elasticity of the stop pin spring 54B.
As described above, if the left side of the door 1 is opened, the right control portions 30Bl and 30B2 accommodate the right hinge shaft 12B with the right control groove 21B, and simultaneously is closed. Accordingly, the right hinge shaft 12B acts only as the axis of rotation. If the right side of the door 1 is opened, the left control portions 30Al and 30A2 accommodate the left hinge shaft 12A with the left control groove 21A, and simultaneously is closed. Accordingly, the left hinge shaft 12A acts only as the axis of rotation.
As described above, when one side of a door is opened, the stop pin of one side blocks the pusher of the other side to block the control portion. Therefore, only when any one side of the left and right sides of a door is selected, the door can be opened, but both sides of the door are not opened simultaneously.
The bidirectional opening and closing controllable door hinge according to the present invention has advantages of a small number of components, an easy fabrication, a simple structure, a less out-of-trouble, and an easy repair and maintenance.
As described above, the present invention has been described with respect to particularly preferred embodiments. However, the present invention is not limited to the above embodiments, and it is possible for one who has an ordinary skill in the art to make various modifications and variations, without departing off the spirit of the present invention. Thus, the protective scope of the present invention is not defined within the detailed description thereof but is defined by the claims to be described later and the technical spirit of the present invention.
Industrial Applicability
As described above, the present invention provides a bidirectional opening and closing controllable door hinge which can be applied to various kinds of doors.

Claims

What is claimed is:
1. A bidirectional opening and closing controllable door hinge which can make a door (1) opened and closed in any one direction through accommodation and secession of hinge shafts (12A, 12B) which are symmetrically installed at the four corners of a door frame (10) , the bidirectional opening and closing controllable door hinge comprising: support plates (2OA, 20B) in which control portions (30Al, 30A2, 30Bl, 30B2), pushers (4OA, 40B), stop pins (5OA, 50B), and safety pins (25A, 25B) are symmetrically installed left and right, and wherein the support plates (2OA, 20B) respectively comprise: control grooves (21A, 21B) with and from which the hinge shafts (12A, 12B) are engaged and disengaged and are formed at the left and right; control portion shafts (22Al, 22A2, 22Bl, 22B2) which are installed to the left and right sides of the control grooves (2IA, 21B) , guiding shafts (23A, 23B) which guide movement to left and right of the pushers (4OA, 40B), and stop pin shafts (24A, 24B), all of which are formed on the upper surface of the support plates (2OA, 20B) and protrude from the upper surface of the support plates (2OA, 20B) , respectively; and safety pin hinges (27Al, 27A2, 27Bl, 27B2) which are symmetrically installed to the left and right of the entrance of the control grooves (21A, 21B) , and support bars (28A, 28B) which are installed across the inner sides of the control grooves (21A, 21B) , respectively, both of which are formed on the rear surface of the support plates (2OA, 20B), wherein the control portions (30Al, 30A2, 30Bl, 30B2) each comprising a ring formed of two semi-circular ring halves, and having an inner throughhole through which the hinge shafts (12A, 12B) can be respectively accommodated, in which the control portion shafts (22Al, 22A2, 22Bl, 22B2) are inserted into control portion holes (31Al, 31A2, 31Bl, 31B2), so that the control portions (30Al, 30A2, 30Bl, 30B2) are opened and closed left and right, the tails of the control portions (30Al, 30A2, 30Bl, 30B2) are cut into half the thickness up and down so as to be overlapped over each other, and pusher shafts (32A, 32B) which protrude from the inner control portions (30A2, 30Bl), wherein on one end of the pushers (4OA, 40B) are respectively formed pusher holes (41A, 41B) through which pushing shafts (32A 32B) are inserted and on the other end thereof are formed pusher inclined surfaces (42A, 42B) in which the width of the respective pushers (4OA, 40B) is cut into half by the diameter of the respective hinge shafts (12A, 12B) from pusher end surfaces (43A, 43B) and then is cut into an inclined surface at approximately 45°slope, to form the pusher inclined surfaces (42A, 42B) , wherein the stop pins (5OA, 50B) are rotatable since stop pin shafts (24A, 24B) are respectively inserted into stop pin holes (51A, 51B) , and are cut from stop pin end surfaces (53A, 53B) at approximately 45° slope, to thus form stop pin inclined surfaces (52A, 52B) so as to overlap the pusher inclined surfaces (42A, 42B), respectively, and then closely contact the pushers (4OA, 40B) by means of stop pin springs (54A, 54B) , and wherein the safety pins (25A, 25B) are rotatably installed to rotate up and down around safety pin hinges (27Al, 27A2, 27Bl, 27B2) in the form of an L-letter, and safety pin springs (26A, 26B) are pulled toward the support plates (2OA, 20B) , respectively to thereby control the control portions (30Al, 30A2, 30Bl, 30B2) .
PCT/KR2006/003105 2005-08-08 2006-08-08 Bidirectional opening and closing controllable door hinge WO2007018395A1 (en)

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KR20-2005-0022852U KR200400437Y1 (en) 2005-08-08 2005-08-08 both hinge

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CN102042733B (en) * 2009-10-13 2012-10-31 河南新飞电器有限公司 Double-door freezer with multi-directional opening door bodies and four-door freezer with multi-directional opening door bodies
WO2014042786A2 (en) * 2012-09-14 2014-03-20 Panduit Corp. Dual hinged door mechanism
CN103743190A (en) * 2013-12-31 2014-04-23 合肥晶弘电器有限公司 Refrigerator with door opened and closed leftwards and rightwards
CN104343305A (en) * 2013-11-29 2015-02-11 海尔集团公司 Bidirectional door opening device and refrigerator with same
WO2015078317A1 (en) * 2013-11-29 2015-06-04 海尔集团公司 Gate bidirectional-opening apparatus and refrigerator provided with apparatus
CN106016927A (en) * 2016-05-31 2016-10-12 青岛海尔股份有限公司 Leftward and rightward door opening mechanism and refrigerator
CN106052268A (en) * 2016-05-31 2016-10-26 青岛海尔股份有限公司 Left-right door opening mechanism and refrigerator

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JPH09159349A (en) * 1995-12-02 1997-06-20 Samsung Electronics Co Ltd Door open-close device capable of selectively opening and closing both side of door and refrigerator with door open-close device thereof

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JPH04148180A (en) * 1990-10-05 1992-05-21 Hoshizaki Electric Co Ltd Both left-and-right opening door structure for box body
JPH07301484A (en) * 1994-04-29 1995-11-14 Samsung Electronics Co Ltd Door switchgear
JPH09159349A (en) * 1995-12-02 1997-06-20 Samsung Electronics Co Ltd Door open-close device capable of selectively opening and closing both side of door and refrigerator with door open-close device thereof

Cited By (16)

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Publication number Priority date Publication date Assignee Title
CN102042733B (en) * 2009-10-13 2012-10-31 河南新飞电器有限公司 Double-door freezer with multi-directional opening door bodies and four-door freezer with multi-directional opening door bodies
WO2014042786A2 (en) * 2012-09-14 2014-03-20 Panduit Corp. Dual hinged door mechanism
US8966821B2 (en) 2012-09-14 2015-03-03 Panduit Corp. Dual hinged door mechanism
WO2014042786A3 (en) * 2012-09-14 2015-04-30 Panduit Corp. Device permitting opening/closing of a door member at either side thereof
CN104343305B (en) * 2013-11-29 2016-11-23 海尔集团公司 Bidirectional door opening apparatus and there is the refrigerator of this device
CN104343305A (en) * 2013-11-29 2015-02-11 海尔集团公司 Bidirectional door opening device and refrigerator with same
WO2015078316A1 (en) * 2013-11-29 2015-06-04 海尔集团公司 Gate bidirectional-opening apparatus and refrigerator provided with apparatus
WO2015078317A1 (en) * 2013-11-29 2015-06-04 海尔集团公司 Gate bidirectional-opening apparatus and refrigerator provided with apparatus
CN103743190B (en) * 2013-12-31 2016-06-22 合肥晶弘电器有限公司 One can left and right two-way opened closing refrigerator
CN103743190A (en) * 2013-12-31 2014-04-23 合肥晶弘电器有限公司 Refrigerator with door opened and closed leftwards and rightwards
CN106016927A (en) * 2016-05-31 2016-10-12 青岛海尔股份有限公司 Leftward and rightward door opening mechanism and refrigerator
CN106052268A (en) * 2016-05-31 2016-10-26 青岛海尔股份有限公司 Left-right door opening mechanism and refrigerator
CN106016927B (en) * 2016-05-31 2018-07-13 青岛海尔股份有限公司 Cross opening door mechanism and refrigerator
CN106052268B (en) * 2016-05-31 2018-10-12 青岛海尔股份有限公司 Cross opening door mechanism and refrigerator
US10451334B2 (en) 2016-05-31 2019-10-22 Qingdao Haier Joint Stock Co., Ltd. Left-right door opening mechanism and refrigerator
US11255116B2 (en) 2016-05-31 2022-02-22 Qingdao Haier Joint Stock Co., Ltd. Left-right door opening mechanism for a refrigerator

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