EP3255234B1 - Scharnier mit dämpfungswirkung und vorrichtung mit diesem scharnier - Google Patents

Scharnier mit dämpfungswirkung und vorrichtung mit diesem scharnier Download PDF

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Publication number
EP3255234B1
EP3255234B1 EP15880827.9A EP15880827A EP3255234B1 EP 3255234 B1 EP3255234 B1 EP 3255234B1 EP 15880827 A EP15880827 A EP 15880827A EP 3255234 B1 EP3255234 B1 EP 3255234B1
Authority
EP
European Patent Office
Prior art keywords
assembly
hinge
main spring
drop
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
EP15880827.9A
Other languages
English (en)
French (fr)
Other versions
EP3255234A4 (de
EP3255234A1 (de
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 EP3255234A1 publication Critical patent/EP3255234A1/de
Publication of EP3255234A4 publication Critical patent/EP3255234A4/de
Application granted granted Critical
Publication of EP3255234B1 publication Critical patent/EP3255234B1/de
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
    • 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
    • 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
    • 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 RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/252—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore characterised by 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 RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/262—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore characterised by type of motion
    • E05Y2201/264—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore characterised by type of motion linear
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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 RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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 RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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 RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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

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.
  • Document CN 204126434 U discloses a hinge for an oven, which comprises a main body and a hinge arm movably connected to an end of the main body.
  • a connecting arm is disposed inside the main body, wherein one end of the connecting arm is movably connected to the hinge arm and the other end is fixed to the main body by means of a spring, wherein a dashpot is arranged inside the connecting arm.
  • Document CN 204152354 U which is not published on time, discloses a damping hinge for an oven, comprising a base disposed on an oven body, a hinge base disposed on a door body, a movable hinge unit disposed on the base and a spring arranged on the base, wherein the hinge base is connected to the base by means of the movable hinge unit.
  • 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 according to claim 1, which may close a door body relying on an elastic force of the hinge when the door body is closed to a certain angle, and may also achieve an automatic closing process in a gentle and noise-free manner through a damper.
  • the present disclosure is further to propose a device having the above hinge.
  • the hinge having a buffering effect includes a first assembly, a second assembly, a main spring, a connecting piece, a damper assembly and a connecting assembly.
  • the first assembly and the second assembly 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, 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 is provided with a guiding groove, and the second assembly comprises a cam portion, wherein the first assembly and the second assembly are rotatably connected by a first rotary shaft.
  • the main spring is disposed in the first assembly and has a first end of the main spring fixedly connected with the second end of the first assembly.
  • the connecting piece is disposed in the first assembly.
  • the connecting piece has a first end rotatably connected with the second assembly by means of a second rotary shaft and a second end connected with a second end of the main spring by means of a third rotary shaft.
  • the third rotary shaft is rotatably and slidably disposed in the guiding groove.
  • the connecting piece is provided with a first upper cover so as to be fitted with the first assembly to form a cavity.
  • the damper assembly includes a damper body, an extending and retracting rod, a position limiting piece and a fixing subassembly. The damper body is located in the cavity.
  • the extending and retracting rod extends from the damper body towards the second assembly.
  • the position limiting piece is disposed at a top end of the extending and retracting rod.
  • the fixing subassembly is configured to fix the damper body to the first assembly.
  • the connecting assembly is provided between the second assembly and the extending and retracting rod.
  • the connecting assembly includes a driven pulley and a locking spring, and the driven pulley is configured to contact the cam portion.
  • the connecting piece is provided with a connecting shaft between the connecting assembly and the position limiting piece.
  • the connecting shaft is configured to be driven by the connecting piece to contact the position limiting piece so as to push the position limiting piece to move in a direction towards the main spring.
  • the second assembly has a balanced stage, a critical stage and a buffered-closing stage successively 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.
  • the main spring In the balanced stage, the main spring is in a stretched state, and a tensioning force produced by the main spring is balanced with a load weight of the hinge.
  • the driven pulley of the connecting assembly contacts the cam portion the locking spring is in a compressed state and changes to a reset state, the connecting shaft contacts the position limiting piece so as to push the damper body in the direction towards the main spring, 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, the extending and retracting rod is retracted into the damper body, the damper body generates a reverse buffering force, the main spring is in the stretched state and changes to the reset state, and the tensioning force produced by the main spring is larger than the load weight of the hinge.
  • 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 guiding groove is formed in each of the two side walls.
  • the fixing subassembly includes a protruding block protruding upwards from the bottom plate and a positioning pin connecting the damper body with the first assembly.
  • the protruding block is configured to stop the damper body so as to prevent the damper body from sliding in a direction towards the second assembly.
  • 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.
  • the connecting assembly includes a connecting body, the locking spring fitted over the connecting body and the driven pulley disposed to the connecting body.
  • 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 is configured to rotatably contact the cam portion.
  • a stopping piece fixed to the first assembly is provided between the connecting assembly and the connecting shaft, and the stopping piece is configured to stop the locking spring so as to compress the locking spring.
  • 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 includes a device body, a drop-down door and the 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 and a connecting assembly 22.
  • 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 guiding groove 124, 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 has a first end rotatably connected with the second assembly 14 by means of a second rotary shaft 24 and a second end connected with a second end of the main spring 16 by means of a third rotary shaft 26.
  • the third rotary shaft 26 is rotatably and slidably disposed in the guiding groove 124.
  • the connecting piece 18 is provided with a first upper cover 180 so as to be fitted with the first assembly 12 to form a cavity 182.
  • the damper assembly 20 includes a damper body 200, an extending and retracting rod 202, a position limiting piece 204 and a fixing subassembly 206.
  • the damper body 200 is located in the cavity 182.
  • the extending and retracting rod 202 extends from the damper body 200 towards the second assembly 14.
  • the position limiting piece 204 is disposed at a top end of the extending and retracting rod 202.
  • the fixing subassembly 206 is configured to fix the damper body 200 to the first assembly 12.
  • the connecting assembly 22 is provided between the second assembly 14 and the extending and retracting rod 202, the connecting assembly 22 includes a driven pulley 220 and a locking spring 222, and the driven pulley 220 is configured to contact the cam portion 140.
  • the connecting piece 18 is provided with a connecting shaft 28 between the connecting assembly 22 and the position limiting piece 204. Driven by the connecting piece 18, the connecting shaft 28 may contact the position limiting piece 204 so as to push the position limiting piece 204 to move in a direction towards the main spring 16.
  • the second assembly 14 has a balanced stage, a critical stage and a buffered-closing stage successively 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. In the balanced stage, the main spring 16 is in a stretched state, and a tensioning force produced by the main spring 16 is balanced with a load weight of the hinge 10.
  • the locking spring 222 In the critical stage, the locking spring 222 is in a compressed state, the connecting shaft 28 contacts the position limiting piece 204 so as to push the damper body 200 in the direction towards the main spring 16, 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 222 In the buffered-closing stage, the locking spring 222 is in the compressed state, the extending and retracting rod 202 is retracted into the damper body 200, the damper body 200 produces a reverse buffering force, 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 main spring 16 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 damper assembly 20 the drop-down door may be closed automatically and slowly, thus improving a using experience of a user.
  • the first assembly 12 has a groove 128 in a bottom plate 126 thereof adjacent to the first end 120, and the groove 128 is parallel with an axial direction of the first assembly 12.
  • 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 second assembly 14 is configured to rotate relative to the first assembly 12 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 128 relative to the first assembly 12.
  • the first assembly 12 is connected with a fourth rotary shaft 30 at the second end 122, and the fourth 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 third rotary shaft 26 parallel with the fourth rotary shaft 30.
  • the main spring 16 is connected with the third rotary shaft 26 and the fourth rotary shaft 30.
  • the connecting piece 18 is formed integrally.
  • the first assembly 12 is substantially formed in a 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 includes the bottom plate 126 and side walls 128a extending upwards from two sides of the bottom plate 126.
  • the guiding groove 124 is provided in each of the two side walls 128a.
  • the guiding groove 124 includes a first end point 1240 and a second end point 1242 opposite to the first end point 1240.
  • the second assembly 14 is rotatably connected with the first assembly 12 by means of the first rotary shaft 142 and rotatably connected with the connecting piece 18 by means of the second rotary shaft 24, and the second rotary shaft 24 is parallel with the first rotary shaft 142.
  • the connecting piece 18 is accommodated in the first assembly 12 and abuts against the two side walls 128a of the first assembly 12.
  • the connecting piece 18 is provided with the first upper cover 180 so as to be fitted with the first assembly 12 to form the cavity 182, and the damper body 200 is located in the cavity 182.
  • the connecting piece 18 is further provided with a second upper cover 184, and the connecting assembly 22 is located below the second upper cover 184.
  • the second assembly 14 has a sheet shape and is inserted into the groove 128.
  • 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 so as to stretch the main spring 16, when the second assembly 14 rotates relative to the first assembly 12.
  • the fixing subassembly 206 includes a rectangular protruding block 2060 protruding upwards from the bottom plate 126 and a positioning pin 2062 connecting the damper body 200 with the first assembly 12.
  • the damper body 200 can be stopped by the protruding block 2060, so that the damper body 200 can be prevented from sliding in the direction towards the second assembly 14.
  • the damper body 200 can be positioned by means of the fixing subassembly 206, which has a simple structure and is convenient to mount and detach.
  • the cavity 180 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.
  • the damper body 200 is provided with a return spring therein.
  • the connecting assembly 22 includes a connecting body 224, the locking spring 222 fitted over the connecting body 224 and the driven pulley 220 disposed to the connecting body 224.
  • the connecting body 222 is provided with a fixed shaft 2240
  • the driven pulley 220 has an annular shape and is fitted over the fixed shaft 2240
  • the driven pulley 220 can rotatably contact the cam portion 140.
  • the cam portion 140 has concave and convex portions configured to be in various contacts with the driven pulley 220.
  • a stopping piece 32 fixed to the first assembly 12 is provided between the connecting assembly 22 and the connecting shaft 28, and the stopping piece 32 may stop the locking spring 222 so as to compress the locking spring 222.
  • 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 third rotary shaft 26 to reach the first end point 1240, 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 connecting shaft 28 contacts the position limiting piece 204
  • the driven pulley 220 of the connecting assembly 22 contacts the cam portion 140.
  • 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
  • the connecting shaft 28 pushes the damper body 200 in the direction towards the main spring 16 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, and the third rotary shaft 26 is located at the second end point 1242.
  • the hinge 10 operates in an angle c, i.e.
  • the tensioning force of the main spring 16 allows the second assembly 14 to continue rotating towards the position n4, 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.
  • the main spring 16, the locking spring 222 and the return spring are all in the natural state.
  • the damper body 200 slides in a direction towards the second assembly 14, and the return spring 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 main spring 16 is stretched from an initial state, and the locking spring 222 is compressed. Since the extending and retracting rod 202 drives the damper body 200 to move in the direction towards the second assembly 14, the return spring resets the damper body 200, and the return spring also restores to the natural state.
  • 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 invention 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.

Claims (9)

  1. Scharnier (10) aufweisend einen Puffereffekt, umfassend:
    eine erste Anordnung (12) und eine zweite Anordnung (14), wobei die erste Anordnung (12) ein erstes Ende (120), das drehbar mit der zweiten Anordnung (14) verbunden ist, und ein zweites Ende (122) gegenüber dem ersten Ende (120) aufweist, wobei die erste Anordnung (12) eine Führungsnut (124) aufweist, wobei die zweite Anordnung (14) mit einem Nockenbereich (140) versehen ist, wobei die erste Anordnung (12) und die zweite Anordnung (14) durch eine erste Drehwelle (142) drehbar verbunden sind,
    eine Hauptfeder (16), die in der ersten Anordnung (12) angeordnet ist und ein erstes Ende der Hauptfeder (16) aufweist, das fest mit dem zweiten Ende (122) der ersten Anordnung (12) verbunden ist
    ein Verbindungsstück (18), das in der ersten Anordnung (12) angeordnet ist, wobei das Verbindungsstück (18) ein erstes Ende aufweist, das mittels einer zweiten Drehwelle (24) drehbar mit der zweiten Anordnung (14) verbunden ist, und ein zweites Ende, das mittels einer dritten Drehwelle (26) mit einem zweiten Ende der Hauptfeder (16) verbunden ist, wobei die dritte Drehwelle (26) drehbar und verschiebbar in der Führungsnut (124) angeordnet ist, wobei das Verbindungsstück (18) mit einer ersten oberen Abdeckung (180) versehen ist, um mit der ersten Anordnung (12) ausgestattet zu werden, um einen Hohlraum (182) auszubilden;
    eine Dämpferanordnung (20), umfassend:
    einen Dämpferkörper (200), der in dem Hohlraum (182) angeordnet ist;
    eine ausfahrbare und einfahrbare Stange (202), die sich von dem Dämpferkörper (200) in Richtung der zweiten Anordnung (14) erstreckt;
    ein Positionsbegrenzungsteil (204), das an einem oberen Ende der ausfahrbaren und einfahrbaren Stange (202) angeordnet ist; und
    eine Befestigungsunteranordnung (206), die zum Befestigen des Dämpferkörpers (200) an der ersten Anordnung (12) konfiguriert ist; und
    eine Verbindungsanordnung (22), die zwischen der zweiten Anordnung (14) und der ausfahrbaren und einfahrbaren Stange (202) angeordnet ist, wobei die Verbindungsanordnung (22) eine angetriebene Riemenscheibe (220) und eine Verriegelungsfeder (222) umfasst, wobei die angetriebene Riemenscheibe (220) so konfiguriert ist, dass sie den Nockenbereich (140) berührt,
    wobei das Verbindungsstück (18) mit einer Verbindungswelle (28) zwischen der Verbindungsanordnung (22) und dem Positionsbegrenzungsteil (204) versehen ist, die Verbindungswelle (28) so konfiguriert ist, dass sie durch das Verbindungsstück (18) angetrieben wird, um das Positionsbegrenzungsteil (204) zu berühren, um das Positionsbegrenzungsteil (204) zu schieben, damit es sich in eine Richtung zur Hauptfeder (16) bewegt,
    wobei die zweite Anordnung (14) in einem Rotationsprozess der zweiten Anordnung (14) von einer Position, in der ein größter Öffnungswinkel zwischen der ersten Anordnung (12) und der zweiten Anordnung (14) ausgebildet ist, zur ersten Anordnung (12) nacheinander eine ausgeglichene Stufe, eine kritische Stufe und eine gepufferte Schließstufe aufweist,
    in der ausgeglichenen Stufe die Hauptfeder (16) in einem gedehnten Zustand ist und in einen Rückstellzustand übergeht, und eine von der Hauptfeder (16) erzeugte Spannkraft mit einem Lastgewicht des Scharniers (10) ausgeglichen wird;
    in der kritischen Stufe die Verriegelungsfeder (222) in einem zusammengedrückten Zustand ist, die Verbindungswelle (28) das Positionsbegrenzungsteil (204) berührt, um den Dämpferkörper (200) in Richtung der Hauptfeder (16) zu drücken, die Hauptfeder (16) im gedehnten Zustand ist, und die von der Hauptfeder (16) erzeugte Spannkraft größer als das Lastgewicht des Scharniers (10) ist;
    in der gepufferten Schließstufe die Verriegelungsfeder (222) im zusammengedrückten Zustand ist, die ausfahrbare und einfahrbare Stange (202) in den Dämpferkörper (200) eingefahren ist, der Dämpferkörper (200) eine umgekehrte Pufferkraft erzeugt, die Hauptfeder (16) im gedehnten Zustand ist und in den Rückstellzustand wechselt, die von der Hauptfeder (16) erzeugte Spannkraft größer als das Lastgewicht des Scharniers (10) ist;
    wobei die erste Anordnung (12) eine Bodenplatte (126) und Seitenwände (128a) umfasst, die sich von zwei Seiten der Bodenplatte (126) nach oben erstrecken, und die Führungsnut (124) in jeder der beiden Seitenwände (128a) ausgebildet ist;
    dadurch gekennzeichnet, dass,
    die Befestigungsunteranordnung (206) einen vorstehenden Block (2060), der von der Bodenplatte (126) nach oben vorsteht, und einen Positionierungsstift (2062) beinhaltet, der den Dämpferkörper (200) mit der ersten Anordnung (12) verbindet, wobei der vorstehende Block (2060) so konfiguriert ist, dass er den Dämpferkörper (200) anhält, um zu verhindern, dass der Dämpferkörper (200) in Richtung der zweiten Anordnung (14) gleitet.
  2. Scharnier (10) aufweisend die Pufferwirkung gemäß Anspruch 1, wobei der Hohlraum (182) eine rechteckige Form aufweist, der Dämpferkörper (200) eine zylindrische Form aufweist und die Formen des Dämpferkörpers (200) und des Hohlraums (182) aneinander angepasst sind.
  3. Scharnier (10) aufweisend die Pufferwirkung gemäß Anspruch 1, wobei die Verbindungsanordnung (22) einen Verbindungskörper (224), die über dem Verbindungskörper (224) eingepasste Verriegelungsfeder (222) und die an dem Verbindungskörper (224) angeordnete angetriebene Riemenscheibe (220) umfasst, der Verbindungskörper (224) mit einer festen Welle (2240) versehen ist, die angetriebene Riemenscheibe (220) eine Ringform aufweist und über der festen Welle (2240) eingepasst ist, und die angetriebene Riemenscheibe (220) so konfiguriert ist, dass sie den Nockenbereich (140) drehbar berührt.
  4. Scharnier (10) aufweisend die Pufferwirkung gemäß Anspruch 3, wobei ein an der ersten Anordnung (12) befestigtes Anschlagstück (32) zwischen der Verbindungsanordnung (22) und der Verbindungswelle (28) vorgesehen ist, und das Anschlagstück (32) so konfiguriert ist, dass es die Verriegelungsfeder (222) anhält, um die Verriegelungsfeder (222) zusammenzudrücken.
  5. Scharnier (10) aufweisend die Pufferwirkung gemäß einem der Ansprüche 1 bis 4, wobei entsprechend der ausgeglichenen Stufe eine Absenkklappe so konfiguriert ist, dass sie sich um einen Winkel von 50°-70° dreht.
  6. Scharnier (10) aufweisend die Pufferwirkung gemäß einem der Ansprüche 1 bis 5, bei dem eine Absenkklappe entsprechend der kritischen Stufe so konfiguriert ist, dass sie sich um einen Winkel von 10°-15° dreht.
  7. Scharnier (10) aufweisend die Pufferwirkung gemäß einem der Ansprüche 1 bis 6, bei dem eine Absenkklappe entsprechend der gepufferten Schließstufe so konfiguriert ist, dass sie sich um einen Winkel von 10°-25° dreht.
  8. Scharnier (10) aufweisend die Pufferwirkung gemäß Anspruch 1, wobei die erste Anordnung (12) als rechteckiges Gehäuse ausgebildet ist.
  9. Vorrichtung, umfassend einen Vorrichtungskörper, eine Absenkklappe und ein für die Vorrichtung konfiguriertes Scharnier (10) gemäß einem der Ansprüche 1 bis 8, wobei die erste Anordnung (12) und die zweite Anordnung (14) des Scharniers (10) so konfiguriert sind, dass sie an dem Vorrichtungskörper bzw. der Absenkklappe befestigt sind und mittels der ersten Drehwelle (142) drehbar verbunden sind, so dass die Absenkklappe so konfiguriert ist, dass sie in Bezug auf den Vorrichtungskörper drehbar nach unten gezogen wird.
EP15880827.9A 2015-02-06 2015-04-28 Scharnier mit dämpfungswirkung und vorrichtung mit diesem scharnier Active EP3255234B1 (de)

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CN201510064634.8A CN104563700B (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/CN2015/077725 WO2016123872A1 (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

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CN105534276A (zh) * 2016-02-22 2016-05-04 广东美的厨房电器制造有限公司 铰链及烹饪器具
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
CN208502505U (zh) * 2018-04-11 2019-02-15 九牧厨卫股份有限公司 一种转动助力阻尼装置及其相关的门窗结构和淋浴房
CN110130765A (zh) * 2019-06-18 2019-08-16 河南天合铰链有限公司 一种铰链机构及装置
CN114851247B (zh) * 2022-05-17 2024-01-12 湖北省天一智能科技有限公司 一种具有向心力结构的柔性补偿器
CN115095238A (zh) * 2022-06-29 2022-09-23 广东欧派克家居智能科技有限公司 一种推拉门窗用的新型阻尼器

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IT1276730B1 (it) * 1995-06-15 1997-11-03 Faringosi Hinges Srl Cerniera per sportelli di elettrodomestici, mobili e simili dotata di mezzi separati ad azione combinata per l'equilibratura dello
KR100450581B1 (ko) * 2002-02-28 2004-09-30 삼성전자주식회사 힌지 장치 및 그를 채용한 휴대용 단말기
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