EP3255235B1 - Hinge providing cushioning effect and apparatus provided with the hinge - Google Patents

Hinge providing cushioning effect and apparatus provided with the hinge Download PDF

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Publication number
EP3255235B1
EP3255235B1 EP15880826.1A EP15880826A EP3255235B1 EP 3255235 B1 EP3255235 B1 EP 3255235B1 EP 15880826 A EP15880826 A EP 15880826A EP 3255235 B1 EP3255235 B1 EP 3255235B1
Authority
EP
European Patent Office
Prior art keywords
assembly
hinge
extending
rotary shaft
damper body
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP15880826.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3255235A1 (en
EP3255235A4 (en
Inventor
Xiaodong MI
Shiping Zhu
Minyu LIN
Lin Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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 Midea Group Co Ltd, Guangdong Midea Kitchen Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Publication of EP3255235A1 publication Critical patent/EP3255235A1/en
Publication of EP3255235A4 publication Critical patent/EP3255235A4/en
Application granted granted Critical
Publication of EP3255235B1 publication Critical patent/EP3255235B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1269—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring
    • E05F1/1276—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • 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
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E05Y2201/24—Actuation thereof by automatically acting means using lost motion
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E05Y2201/256—Fluid or viscous friction with pistons or vanes
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262—Type of motion, e.g. braking
    • E05Y2201/264—Type of motion, e.g. braking linear
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/22—Combinations of elements of not identical elements of the same category, e.g. combinations of not identical springs
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form or shape
    • E05Y2800/292—Form or shape having apertures
    • E05Y2800/296—Slots
    • 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
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers
    • 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
    • E05Y2900/312—Application of doors, windows, wings or fittings thereof for domestic appliances for washing machines or laundry dryers

Definitions

  • the present disclosure relates to a hinge, and particularly to a hinge having a buffering effect and a device having the hinge.
  • a hinge applied to a drop-down door of an oven at present does not have an effect of a door self-closing. That is, a manipulator is required to push or pull the door hard in whole processes of opening and closing the door, thus resulting in a poor door-closing experience.
  • EP 2 664 730 782 A2 door hinge which comprises members to protect the first damper and the second damper from damage caused by overloads that might arise when a household appliance door is closed fast.
  • the hinge also prevents the door from making noise and being open and closed and slows down the fast movement during closing.
  • an oven dampening hinge comprising a body and a hinge arm, which is movably hinged to the front end of the body.
  • a pull arm which can slide forward and backwards is movably hinged to the hinge arm and is connected to the pull body at its rear end through an attention spring.
  • a dampening cylinder is arranged in a pull arm and the piston rod of the dampening cylinder is fixed to the pull arm so that when closing the door of the oven the reset of the pull arm is buffered through the dampening cylinder.
  • the reset movement speed is decreased and a buffering effect is achieved when closing the door, which also avoids noise.
  • the present disclosure aims to implement a solution of a hinge of an oven having a good performance, so as to improve at least one of using effects of the hinge in the related art.
  • the present disclosure intends to provide the hinge, which may close a door body relying on an elastic force of the hinge when the door body is closed to a certain degree, and may also achieve an automatic closing process in a gentle and noise-free manner through a damper.
  • the hinge having a buffering effect includes a first assembly, a second assembly, a main spring, a connecting piece, a damper assembly, a connecting assembly and a locking spring.
  • the first assembly and the second assembly are configured to be fixed to a device body and a drop-down door respectively and rotatably connected by means of a first rotary shaft, so that the drop-down door is configured to be rotatably pulled downwards with respect to the device body.
  • the first assembly is configured to be a rectangular casing and includes a first end rotatably connected with the second assembly and a second end opposite to the first end.
  • the first assembly has a first guiding groove adjacent to the first end, and the second assembly is provided with a cam portion.
  • the main spring is disposed in the first assembly and a first end of the main spring is fixedly connected with the second end of the first assembly.
  • the connecting piece is disposed in the first assembly, and the connecting piece is connected with a second end of the main spring and rotatably connected with the second assembly by means of a second rotary shaft.
  • the connecting piece is provided with an upper cover so as to be fitted with the first assembly to form a cavity, and the connecting piece has a second guiding groove.
  • the damper assembly includes a damper body, an extending and retracting rod, a return spring, a position limiting piece and a third rotary shaft.
  • the damper body is located in the cavity and has a third guiding groove.
  • the extending and retracting rod extends from the damper body towards the second assembly.
  • the return spring is fitted over the extending and retracting rod and disposed in the damper body.
  • the position limiting piece is fixed in the first assembly, and the position limiting piece is penetrated by the extending and retracting rod.
  • the third rotary shaft connects the damper body with the connecting piece.
  • the third rotary shaft is rotatably and slidably disposed in the second guiding groove and the third guiding groove.
  • the connecting assembly is disposed between the second assembly and the extending and retracting rod.
  • the connecting assembly is fixedly connected with the extending and retracting rod.
  • the connecting assembly is connected with the connecting piece by means of a fourth rotary shaft.
  • the fourth rotary shaft is rotatably and slidably disposed in the first guiding groove.
  • the connecting assembly includes a driven pulley.
  • the locking spring is fitted over the extending and retracting rod and disposed between the position limiting piece and the connecting assembly so as to allow the driven pulley to keep rotatable contact with the cam portion.
  • the cam portion has a balanced stage, a critical stage and a buffered-closing stage in a rotation process of the second assembly from a position where a largest opening angle is formed between the first assembly and the second assembly to the first assembly, in which the cam portion is successively fitted with the driven pulley in these stages.
  • the locking spring In the balanced stage, the locking spring is in a compressed state and changes to a reset state, the return spring is in a natural state, the damper body is motionless in the cavity, the main spring is in a stretched state and changes to a reset state, and a tensioning force produced by the main spring is balanced with a load weight of the hinge.
  • the critical stage the locking spring is in the compressed state and changes to the reset state, the return spring is in the natural state, the damper body slides in the cavity in a direction towards the second end, the main spring is in the stretched state, and the tensioning force produced by the main spring is larger than the load weight of the hinge.
  • the locking spring In the buffered-closing stage, the locking spring is in the compressed state and changes to the reset state, the return spring is in the natural state, the extending and retracting rod is retracted into the damper body, the main spring is in the stretched state and changes to the reset state, the tensioning force produced by the main spring is larger than the load weight of the hinge and the damper body has a reverse buffering effect.
  • a weight of the drop-down door may be balanced when the drop-down door is pulled downwards, thus realizing effects of stable opening and stable closing.
  • the drop-down door may be closed automatically and slowly, thus improving a using experience of a user.
  • the first assembly includes a bottom plate and side walls extending upwards from two sides of the bottom plate.
  • the first guiding groove is formed in each of the two side walls and has an arc shape.
  • the connecting piece includes two side sheets tightly attached to the side walls respectively and the upper cover joint to the two side sheets.
  • the cavity has a rectangular shape
  • the damper body has a cylindrical shape
  • shapes of the damper body and the cavity are matched with each other so as to allow the damper body to slide in the cavity.
  • the position limiting piece has an L shape and includes a bottom sheet fixedly connected with the bottom plate and a blocking sheet extending upwards from the bottom sheet, and the blocking sheet is penetrated by the extending and retracting rod.
  • the connecting assembly includes a connecting body fixedly connected with the extending and retracting rod and the driven pulley disposed to the connecting body.
  • the connecting body and the connecting piece are connected by means of the fourth rotary shaft slidably disposed in the first guiding groove.
  • the connecting body is provided with a fixed shaft, the driven pulley has an annular shape and is fitted over the fixed shaft, and the driven pulley keeps being rotatably connected with the cam portion.
  • the drop-down door is configured to rotate by an angle of 50°-70°.
  • the drop-down door is configured to rotate by an angle of 10°-15°.
  • the drop-down door is configured to rotate by an angle of 10°-25°.
  • a device according to claim 11 includes a device body, a drop-down door and a hinge configured for the device according to the above embodiments.
  • a weight of the drop-down door may be balanced when the drop-down door is pulled downwards, thus realizing effects of stable opening and stable closing.
  • the drop-down door may be closed automatically and slowly, thus improving a using experience of a user.
  • a structure in which a first feature is "on" or “below” a second feature may include an embodiment in which the first feature is in direct contact with the second feature, and may also include an embodiment in which the first feature and the second feature are not in direct contact with each other, but are contacted via an additional feature formed therebetween.
  • a first feature "on,” “above,” or “on top of' a second feature may include an embodiment in which the first feature is right or obliquely “on,” “above,” or “on top of' the second feature, or just means that the first feature is at a height higher than that of the second feature; while a first feature "below,” “under,” or “on bottom of' a second feature may include an embodiment in which the first feature is right or obliquely “below,” “under,” or “on bottom of' the second feature, or just means that the first feature is at a height lower than that of the second feature.
  • a hinge 10 having a buffering effect includes a first assembly 12, a second assembly 14, a main spring 16, a connecting piece 18, a damper assembly 20, a connecting assembly 22 and a locking spring 24.
  • the first assembly 12 and the second assembly 14 are configured to be fixed to a device body and a drop-down door respectively and are rotatably connected by means of a first rotary shaft 142, so that the drop-down door may be rotatably pulled downwards with respect to the device body.
  • the first assembly 12 is configured to be a rectangular casing and includes a first end 120 rotatably connected with the second assembly 14 and a second end 122 opposite to the first end 120.
  • the first assembly 12 is provided with a first guiding groove 124 adjacent to the first end 120, and the second assembly 14 includes a cam portion 140.
  • the main spring 16 is disposed in the first assembly 12 and has a first end fixedly connected with the second end 122.
  • the connecting piece 18 is disposed in the first assembly 12.
  • the connecting piece 18 is connected with a second end of the main spring 16 and further rotatably connected with the second assembly 14 by means of a second rotary shaft 26.
  • the connecting piece 18 is provided with an upper cover 180 so as to be fitted with the first assembly 12 to form a cavity 182, and the connecting piece 18 is provided with a second guiding groove 184.
  • the damper assembly 20 includes a damper body 200, an extending and retracting rod 202, a return spring 204, a position limiting piece 206 and a third rotary shaft 208.
  • the damper body 200 is located in the cavity 182 and provided with a third guiding groove 20a.
  • the extending and retracting rod 202 extends from the damper body 200 towards the second assembly 14.
  • the return spring 204 is fitted over the extending and retracting rod 202 and disposed in the damper body 200.
  • the position limiting piece 206 is fixed in the first assembly 12, and the position limiting piece 206 is penetrated by the extending and retracting rod 202.
  • the third rotary shaft 208 connects the damper body 200 with the connecting piece 18.
  • the third rotary shaft 208 is rotatably and slidably disposed in the second guiding groove 184 and the third guiding groove 20a.
  • the connecting assembly 22 is disposed between the second assembly 14 and the extending and retracting rod 202.
  • the connecting assembly 22 is fixedly connected with the extending and retracting rod 202.
  • the connecting assembly 22 is connected with the connecting piece 18 by means of a fourth rotary shaft 28.
  • the fourth rotary shaft 28 is rotatably and slidably disposed in the first guiding groove 124.
  • the connecting assembly 22 includes a driven pulley 220.
  • the locking spring 24 is fitted over the extending and retracting rod 202 and disposed between the position limiting piece 206 and the connecting assembly 22, so that the driven pulley 220 may keep rotatable contact with the cam portion 140.
  • the cam portion 140 has a balanced stage, a critical stage and a buffered-closing stage in a rotation process of the second assembly 14 from a position where a largest opening angle is formed between the first assembly 12 and the second assembly 14 to the first assembly 12, and the cam portion 140 is successively fitted with the driven pulley 220 in these stages.
  • the locking spring 24 In the balanced stage, the locking spring 24 is in a compressed state and changes to a reset state, the return spring 204 is in a natural state, the damper body 200 is motionless in the cavity 182, the main spring 16 is in a stretched state and changes to a reset state, and a tensioning force produced by the main spring 16 is balanced with a load weight of the hinge 10.
  • the critical stage the locking spring 24 is in the compressed state and changes to the reset state, the return spring 204 is in the natural state, the damper body 200 slides in the cavity 182 in a direction towards the second end 122, the main spring 16 is in the stretched state, and the tensioning force produced by the main spring 16 is larger than the load weight of the hinge 10.
  • the locking spring 24 In the buffered-closing stage, the locking spring 24 is in the compressed state and changes to the reset state, the return spring 204 is in the natural state, the extending and retracting rod 202 is retracted into the damper body 200, the main spring 16 is in the stretched state and changes to the reset state, the tensioning force produced by the main spring 16 is larger than the load weight of the hinge 10 and the damper body 200 has a reverse buffering effect.
  • the main spring 16 As the main spring 16 is adopted, it is possible to balance a weight of the drop-down door when pulling the drop-down door downwards, thus realizing stable opening and stable closing.
  • the locking spring 24 and the damper assembly 20 are adopted, the drop-down door may be closed automatically and slowly, thus improving a using experience of a user.
  • the first assembly 12 has a substantially rectangular shape.
  • the first assembly 12 includes the first end 120 and the second end 122 opposite to the first end 120.
  • the first assembly 12 further includes a bottom plate 126 and side walls 128 extending upwards from two sides of the bottom plate 126 respectively.
  • the first guiding groove 124 is formed in each of the two side walls 128 and has an arc shape, and extends substantially along a length direction of the first assembly 12.
  • the first guiding groove 124 includes a first end point 1240 and a second end point 1242 opposite to the first end point 1240.
  • the first assembly 12 has a groove 128a in the bottom plate 126 adjacent to the first end 120, and the groove 128a is parallel with an axial direction of the first assembly 12.
  • the groove 128a has a U shape.
  • the first assembly 12 and the second assembly 14 are connected by means of the first rotary shaft 142 at the first end 120.
  • the first assembly 12 is configured to rotate relative to the second assembly 14 around the first rotary shaft 142 and also to drive the connecting piece 18 to move synchronously.
  • the second assembly 14 is configured to swing in the groove 128a relative to the first assembly 12.
  • the first assembly 12 is connected with a fifth rotary shaft 30 at the second end 122, and the fifth rotary shaft 30 is parallel with the first rotary shaft 142.
  • a tail end of the connecting piece 18 away from the first end 120 is connected with a connecting shaft 32 parallel with the fifth rotary shaft 30.
  • the main spring 16 is connected with the fifth rotary shaft 30 and the connecting shaft 32.
  • the second assembly 14 is connected to a stepped piece 36 by means of a sixth rotary shaft 34 parallel with the second rotary shaft 26.
  • the stepped piece 36 includes a fifth side 360 and a sixth side 362 opposite to the fifth side 360.
  • the second assembly 14 is located between the fifth side 360 and the sixth side 362.
  • the sixth rotary shaft 34 passes through the fifth side 360 and the sixth side 362 to be connected with the second assembly 14.
  • the fifth side 360 and the sixth side 362 are connected and joint by means of a first step surface 364. Above the first step surface 364, the fifth side 360 and the sixth side 362 are connected and joint by means of a second step surface 366.
  • the stepped piece 36 has a U shape, and the first step surface 364 and the second step surface 366 forms a stepped shape.
  • the first step surface 364 is configured to be wedged in the groove 128a, and the second step surface 366 is configured to abut against the bottom plate 126 of the first assembly 12.
  • the connecting piece 18 is accommodated in the first assembly 12 and includes two side sheets 186 and the upper cover 180 jointed to the two side sheets 186.
  • the two side sheets 186 are tightly attached to the two side walls 128 of the first assembly 12 respectively.
  • the upper cover 180 is parallel with the bottom plate 126 of the first assembly 12, the upper cover 180 is fitted with the first assembly 12 to form the cavity 182, and the damper body 200 is configured to slide in the cavity 182.
  • the second assembly 14 is configured to have a sheet shape, located in the connecting piece 18, and extends into the groove 128a.
  • the connecting piece 18 and the second assembly 14 are connected by means of the second rotary shaft 26 parallel with the first rotary shaft 142.
  • the connecting piece 18 connects the main spring 16 with the second assembly 14, and a connecting point of the connecting piece 18 and the second assembly 14 deviates from the first rotary shaft 142 of the second assembly 14, so that the second assembly 14 may drive the connecting piece 18 to move when the second assembly 14 rotates relative to the first assembly 12, so as to stretch the main spring 16.
  • the connecting piece 18 provided with the upper cover 180 performs a position limitation to the damper body 200.
  • the cavity 182 has a rectangular shape
  • the damper body 200 has a cylindrical shape
  • shapes of the damper body 200 and the cavity 182 are matched with each other so as to enable the damper body 200 to slide in the cavity 182.
  • the position limiting piece 206 has an L shape and includes a bottom sheet 206a fixedly connected with the bottom plate 126 and a blocking sheet 206b extending upwards from the bottom sheet 206a, and the blocking sheet 206b is penetrated by the extending and retracting rod 202.
  • the position limiting piece 206 performs a position limitation to the damper body 200.
  • the connecting piece 18, the position limiting piece 206 and the third rotary shaft 208 cooperate to define a moving range of the damper body 200, thus proving a simple structure and convenient assembling and disassembling.
  • the connecting piece 18, the position limiting piece 206 and the third rotary shaft 208 disposed in the second guiding groove 184 and the third guiding groove 20a define a sliding travel of the damper body 200.
  • a position limitation of the damper body 200 is performed by means of the connecting piece 18, the position limiting piece 206 and the third rotary shaft 208.
  • the damper body 200 is configured to move in an axial length range of the third guiding groove 20a in a linear and reciprocating manner.
  • the third rotary shaft 208 is located at a rightmost end of the third guiding groove 20a.
  • the extending and retracting rod 202 extends from the damper body 200, and a tail end of the extending and retracting rod 202 is fixed with the connecting assembly 22 by means of a threaded pin 38.
  • the damper body 200 is configured as a hydraulic damper.
  • the connecting assembly 22 includes a connecting body 222 and the driven pulley 220 disposed to the connecting body 222, and the connecting body 222 is fixedly connected with the extending and retracting rod 202.
  • the connecting body 222 and the connecting piece 18 are connected by means of the fourth rotary shaft 28 slidably disposed in the first guiding groove 124.
  • the connecting body 222 is provided with a fixed shaft 2220, the driven pulley 220 has an annular shape and is fitted over the fixed shaft 2220, and the driven pulley 220 keeps contacting the cam portion 140.
  • the driven pulley 220 may rotate with treating the fourth rotary shaft 28 as its axis, and thus it is guaranteed that the driven pulley 220 keeps contacting the cam portion 140 constantly.
  • the connecting body 222 includes a third side 2222, a fourth side 2224 opposite to the third side 2222, and a blocking surface 2226 perpendicular to the third side 2222 and the fourth side 2224 and located between the third side 2222 and the fourth side 2224.
  • the fixed shaft 2220 is formed between the third side 2222 and the fourth side 2224.
  • the blocking surface 2226 has a hole 2228 in a center thereof, and the hole 2228 is configured to be fitted with the extending and retracting rod 202.
  • the extending and retracting rod 202 rightly passes through the hole 2228, and the threaded pin 38 mounted to the extending and retracting rod 202 blocks the blocking surface 2226.
  • the connecting body 222 is formed integrally, and the cam portion 140 has concave and convex portions having various contacts with the driven pulley 220.
  • the connecting piece 18 and the connecting assembly 22 are connected by means of the fourth rotary shaft 28 and the fourth rotary shaft 28 is slidably disposed in the first guiding groove 124.
  • the connecting piece 18 drives the fourth rotary shaft 28 to slide in the first guiding groove 124.
  • the first assembly 12 is disposed to the drop-down door, and the second assembly 14 is disposed to the device body.
  • a position of the second assembly 14 is constant, and the first assembly 12 may rotate around the first rotary shaft 142 by a certain angle and drive the connecting piece 18 connected to the second assembly 14 to move synchronously, so that the main spring 16 connected to the connecting piece 18 may be stretched.
  • the drop-down door may be closed automatically and slowly.
  • the balanced stage represents that the hinge 10 transfers from a position n1 to a position n2
  • the critical stage represents that the hinge 10 transfers from the position n2 to a position n3
  • the buffered-closing stage represents that the hinge 10 transfers from the position n3 to a position n4.
  • the connecting piece 18 drives the fourth rotary shaft 28 to reach the first end point 1240, the third rotary shaft 208 is located at a right end of the third guiding groove 20a, the main spring 16 is stretched by the connecting piece 18 so as to be in the stretched state, and the tensioning force of the main spring 16 is balanced with the load weight of the hinge 10.
  • the hinge 10 operates in an angle a, i.e. in the balanced stage from the position n1 to the position n2, as the tensioning force of the main spring 16 is balanced with the load weight of the hinge 10, the drop-down door may be motionless at any position in this range, in which case an external force of human is required for closing the drop-down door.
  • the tensioning force of the main spring 16 is larger than the load weight of the hinge 10.
  • the hinge 10 operates in an angle b, i.e. in the critical stage from the position n2 to the position n3
  • the connecting piece 18 connected with the main spring 16 slides in a direction towards the main spring 16, and hence the damper body 200 slides, so that the third rotary shaft 208 slides towards a leftmost end of the third guiding groove 20a, i.e. the hinge 10 may automatically drive the drop-down door to rotate rapidly in a closing direction, in which case the drop-down door may be closed automatically without the external force.
  • the tensioning force of the main spring 16 is larger than the load weight of the hinge 10
  • the third rotary shaft 208 is located at the leftmost end of the third guiding groove 20a, and the return spring 204 restores to the natural state from the compressed state.
  • the connecting piece 18 connected with the main spring 16 continues sliding in the direction towards the main spring 16, the extending and retracting rod 202 starts to be retracted into the damper body 200, and hence the damper body 200 generates a reverse buffering force, so as to slow down a rotation speed of the door body driven by the hinge 10, so that the drop-down door rotates in a slow and uniform speed, in which case the drop-down door may be closed automatically in a gentle manner, instead of being rebounded rapidly.
  • the hinge 10 When the second assembly 14 is located at the position n4 with respect to the first assembly 12, the hinge 10 has the smallest opening angle, and the door body is in the closed state. In this case, the main spring 16, the locking spring 24 and the return spring 204 are all in the natural state.
  • the damper body 200 slides in a direction towards the second assembly 14, and the return spring 204 applies a resistance force to the damper body 200 to allow a hydraulic oil in the damper body 200 to reset.
  • the external force is withdrawn, as the tensioning force of the main spring 16 is larger than the load weight of the hinge 10, the drop-down door rotates in a direction towards the main spring 16, that is, the drop-down door will still be closed in a slow and uniform speed, i.e. the hinge 10 will still return to the position n4.
  • the hinge 10 is located at a position between the position n1 and the position n2, in which case the tensioning force produced by the main spring 16 is balanced with the load weight of the hinge 10, and thus the drop-down door may be stopped at any position in a range of the angle a.
  • the drop-down door is configured to rotate by an angle of 50°-70°, that is, the range of the angel a is 50°-70°.
  • the hinge 10 is located at a position between the position n2 and the position n3, in which case the tensioning force produced by the main spring 16 is larger than the load weight of the hinge 10, and thus the hinge may rotate from the position n2 to the position n3 rapidly in a range of the angle b.
  • the drop-down door is configured to rotate by an angle of 10°-15°, that is, the range of the angel b is 10°-15°.
  • the hinge 10 is located at a position between the position n3 and the position n4, in which case the tensioning force produced by the main spring 16 is larger than the load weight of the hinge 10, and thus the hinge may rotate from the position n3 to the position n4 slowly in the range of the angle c.
  • the drop-down door is configured to rotate by an angle of 10°-25°, that is, the range of the angel c is 10°-25°.
  • the drop-down door may be closed automatically and slowly in a designed angle range, thus improving the using experience of the user.
  • a device in a preferable embodiment of the present disclosure includes a device body and a drop-down door.
  • the device includes the above hinge 10.
  • the first assembly 12 is fixedly disposed to the drop-down door
  • the second assembly 14 is fixedly disposed to the device body.
  • the device is an oven.
  • the oven only serves as an example, but is not used to limit the present disclosure.
  • the drop-down door of the device may be closed automatically and slowly, which prevents the drop-down door of the device from being damaged due to a rapid closing caused by overexertion.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Hinges (AREA)
EP15880826.1A 2015-02-06 2015-04-28 Hinge providing cushioning effect and apparatus provided with the hinge Active EP3255235B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510066884.5A CN104727683B (zh) 2015-02-06 2015-02-06 具有缓冲效果的铰链及具有所述铰链的装置
PCT/CN2015/077724 WO2016123871A1 (zh) 2015-02-06 2015-04-28 具有缓冲效果的铰链及具有所述铰链的装置

Publications (3)

Publication Number Publication Date
EP3255235A1 EP3255235A1 (en) 2017-12-13
EP3255235A4 EP3255235A4 (en) 2018-11-21
EP3255235B1 true EP3255235B1 (en) 2022-06-22

Family

ID=53452031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15880826.1A Active EP3255235B1 (en) 2015-02-06 2015-04-28 Hinge providing cushioning effect and apparatus provided with the hinge

Country Status (4)

Country Link
EP (1) EP3255235B1 (zh)
CN (1) CN104727683B (zh)
RU (1) RU2656844C1 (zh)
WO (1) WO2016123871A1 (zh)

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CN106724741B (zh) * 2016-12-02 2018-11-30 广东美的厨房电器制造有限公司 烹饪电器
CN108203870B (zh) * 2016-12-16 2021-06-01 合肥海尔洗衣机有限公司 洗衣机盘座部件及洗衣机
KR102013025B1 (ko) * 2017-04-05 2019-08-21 서원코리아 주식회사 도어 힌지
CN107419986B (zh) * 2017-08-28 2023-05-09 珠海格力电器股份有限公司 阻尼铰链及设有该阻尼铰链的装置
CN108173141A (zh) * 2018-02-05 2018-06-15 安徽开美电气有限公司 一种带有减震底座的低压开关柜
CN108332497A (zh) * 2018-04-04 2018-07-27 安徽安缆模具有限公司 一种可自动吸合的冰箱门铰链盒组件
CN111396446B (zh) * 2020-04-02 2024-10-18 上海杰邦塑料五金制品有限公司 一种铰链装置
CN113099653B (zh) 2021-03-26 2023-02-28 山东英信计算机技术有限公司 一种电子设备及其连接模组
IT202100023870A1 (it) * 2021-09-16 2023-03-16 C M I Cerniere Mecc Industriali Srl Cerniera con fermo elastico
CN118125179B (zh) * 2023-12-27 2024-10-25 诸暨市舒亭纺织有限公司 一种布料生产用平整设备及其方法

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KR100450581B1 (ko) * 2002-02-28 2004-09-30 삼성전자주식회사 힌지 장치 및 그를 채용한 휴대용 단말기
TWM254061U (en) * 2004-02-06 2004-12-21 Hon Hai Prec Ind Co Ltd Hinge structure
PL2218859T3 (pl) * 2009-02-13 2012-01-31 Electrolux Home Products Corp Nv Urządzenie do otwierania i zamykania drzwiczek piekarnika
CN201695837U (zh) * 2010-05-11 2011-01-05 李炎平 一种烤箱铰链
KR101193477B1 (ko) * 2010-08-27 2012-10-24 주식회사 이피텍 오븐기용 도어 힌지 장치
GB201116913D0 (en) * 2011-09-30 2011-11-16 Chung Chow Damped self-centreing hinge
WO2012168748A1 (en) * 2011-06-08 2012-12-13 Faringosi Hinges S.R.L. Hinges provided with elastic means and dampener
GB2504917B (en) * 2012-01-27 2015-06-03 Chung Chow Damped self-centering hinge
SI24023A (sl) * 2012-03-06 2013-09-30 Turna D.O.O. Naprava in metoda za kontrolirano zapiranje vrat
EP2664737B1 (en) * 2012-05-15 2015-12-16 Atasan Metal Sanayi Ve Ticaret Limited Sirketi A door hinge
CN204126434U (zh) * 2014-08-06 2015-01-28 胡国衡 一种烤箱阻尼铰链

Also Published As

Publication number Publication date
EP3255235A1 (en) 2017-12-13
CN104727683B (zh) 2016-12-14
RU2656844C1 (ru) 2018-06-06
EP3255235A4 (en) 2018-11-21
CN104727683A (zh) 2015-06-24
WO2016123871A1 (zh) 2016-08-11

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