EP3255234B1 - Hinge having damping effect, and apparatus having said hinge - Google Patents
Hinge having damping effect, and apparatus having said hinge Download PDFInfo
- 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
Links
- 230000000694 effects Effects 0.000 title description 5
- 238000013016 damping Methods 0.000 title description 2
- 230000003139 buffering effect Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- 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
- E05Y2201/252—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
- 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.
- 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.
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Description
- 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. Thus, 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. 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. In the critical stage, 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. 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.
- In the hinge according to the invention, as the main spring is adopted, 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. In addition, as the damper assembly is adopted, 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.
- In some embodiments, the cavity has a rectangular shape, the damper body has a cylindrical shape, and shapes of the damper body and the cavity are matched with each other.
- In some embodiments, 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.
- In some embodiments, 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.
- In some embodiments, corresponding to the balanced stage, the drop-down door is configured to rotate by an angle of 50°-70°.
- In some embodiments, corresponding to the critical stage, the drop-down door is configured to rotate by an angle of 10°-15°.
- In some embodiments, corresponding to the buffered-closing stage, the drop-down door is configured to rotate by an angle of 10°-25°.
- A device according to a second aspect of the invention includes a device body, a drop-down door and the hinge configured for the device according to the above embodiments.
- In the device as the main spring is adopted, 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. In addition, as the damper assembly is adopted, the drop-down door may be closed automatically and slowly, thus improving a using experience of a user.
- Additional aspects and advantages of embodiments of present disclosure will be given in part in the following descriptions, become apparent in part from the following descriptions, or be learned from the practice of the embodiments of the present disclosure.
- These and other aspects and advantages of embodiments of the present disclosure will become apparent and more readily appreciated from the following descriptions made with reference to the drawings, in which:
-
Fig. 1 is a perspective view of a hinge having a buffering effect according to an embodiment of the present invention, -
Fig. 2 is an exploded view of a hinge having a buffering effect according to an embodiment of the present invention, -
Fig. 3 is a sectional view of the hinge having the buffering effect inFig. 1 along line III-III. - Embodiments of the present disclosure will be described in detail and examples of the embodiments will be illustrated in the drawings, where same or similar reference numerals are used to indicate same or similar members or members with same or similar functions. The embodiments described herein with reference to drawings are explanatory, illustrative, and used to generally understand the present disclosure. The embodiments shall not be construed to limit the present disclosure.
- In the specification, it is to be understood that terms such as "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" should be construed to refer to the orientation as then described or as shown in the drawings under discussion. These relative terms are for convenience of description and do not require that the present disclosure be constructed or operated in a particular orientation. In addition, terms such as "first" and "second" are used herein for purposes of description and are not intended to indicate or imply relative importance or significance or to imply the number of indicated technical features. Thus, the feature defined with "first" and "second" may comprise one or more of this feature. In the description of the present disclosure, "a plurality of" means two or more than two, unless specified otherwise.
- In the present specification, unless specified and defined otherwise, it is to be illustrated that the terms "mounted," "connected," "coupled" and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications or interaction relation of two elements, which can be understood by those skilled in the art according to specific situations.
- In the present disclosure, unless specified or limited otherwise, 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. Furthermore, 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.
- Various embodiments and examples are provided in the following description to implement different structures of the present disclosure. In order to simplify the present disclosure, certain elements and settings will be described. However, these elements and settings are only by way of example and are not intended to limit the present disclosure. In addition, reference numerals may be repeated in different examples in the present disclosure. This repeating is for the purpose of simplification and clarity and does not refer to relations between different embodiments and/or settings. Furthermore, examples of different processes and materials are provided in the present disclosure. However, it would be appreciated by those skilled in the art that other processes and/or materials may be also applied.
- Referring to
Fig. 1 to Fig. 3 , ahinge 10 having a buffering effect according to a preferable embodiment of the present invention includes afirst assembly 12, asecond assembly 14, amain spring 16, a connectingpiece 18, adamper assembly 20 and a connectingassembly 22. Thefirst assembly 12 and thesecond 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 firstrotary shaft 142, so that the drop-down door may be rotatably pulled downwards with respect to the device body. Thefirst assembly 12 is configured to be a rectangular casing and includes afirst end 120 rotatably connected with thesecond assembly 14 and asecond end 122 opposite to thefirst end 120. Thefirst assembly 12 is provided with a guidinggroove 124, and thesecond assembly 14 includes acam portion 140. Themain spring 16 is disposed in thefirst assembly 12 and has a first end fixedly connected with thesecond end 122. The connectingpiece 18 is disposed in thefirst assembly 12. The connectingpiece 18 has a first end rotatably connected with thesecond assembly 14 by means of a secondrotary shaft 24 and a second end connected with a second end of themain spring 16 by means of a thirdrotary shaft 26. The thirdrotary shaft 26 is rotatably and slidably disposed in the guidinggroove 124. The connectingpiece 18 is provided with a firstupper cover 180 so as to be fitted with thefirst assembly 12 to form acavity 182. Thedamper assembly 20 includes adamper body 200, an extending and retractingrod 202, aposition limiting piece 204 and a fixingsubassembly 206. Thedamper body 200 is located in thecavity 182. The extending and retractingrod 202 extends from thedamper body 200 towards thesecond assembly 14. Theposition limiting piece 204 is disposed at a top end of the extending and retractingrod 202. The fixingsubassembly 206 is configured to fix thedamper body 200 to thefirst assembly 12. The connectingassembly 22 is provided between thesecond assembly 14 and the extending and retractingrod 202, the connectingassembly 22 includes a drivenpulley 220 and alocking spring 222, and the drivenpulley 220 is configured to contact thecam portion 140. The connectingpiece 18 is provided with a connectingshaft 28 between the connectingassembly 22 and theposition limiting piece 204. Driven by the connectingpiece 18, the connectingshaft 28 may contact theposition limiting piece 204 so as to push theposition limiting piece 204 to move in a direction towards themain spring 16. Thesecond assembly 14 has a balanced stage, a critical stage and a buffered-closing stage successively in a rotation process of thesecond assembly 14 from a position where a largest opening angle is formed between thefirst assembly 12 and thesecond assembly 14 to thefirst assembly 12. In the balanced stage, themain spring 16 is in a stretched state, and a tensioning force produced by themain spring 16 is balanced with a load weight of thehinge 10. In the critical stage, the lockingspring 222 is in a compressed state, the connectingshaft 28 contacts theposition limiting piece 204 so as to push thedamper body 200 in the direction towards themain spring 16, themain spring 16 is in the stretched state, and the tensioning force produced by themain spring 16 is larger than the load weight of thehinge 10. In the buffered-closing stage, the lockingspring 222 is in the compressed state, the extending and retractingrod 202 is retracted into thedamper body 200, thedamper body 200 produces a reverse buffering force, themain spring 16 is in the stretched state and the tensioning force produced by themain spring 16 is larger than the load weight of thehinge 10. - In the hinge according to the preferable embodiment of the present invention, 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. In addition, as thedamper assembly 20 is adopted, the drop-down door may be closed automatically and slowly, thus improving a using experience of a user. - Specifically, the
main spring 16, the connectingpiece 18, thedamper assembly 20 and the connectingassembly 22 are accommodated in thefirst assembly 12. Thefirst assembly 12 has agroove 128 in abottom plate 126 thereof adjacent to thefirst end 120, and thegroove 128 is parallel with an axial direction of thefirst assembly 12. Thefirst assembly 12 and thesecond assembly 14 are connected by means of the firstrotary shaft 142 at thefirst end 120. Thesecond assembly 14 is configured to rotate relative to thefirst assembly 12 around the firstrotary shaft 142 and also to drive the connectingpiece 18 to move synchronously. Thesecond assembly 14 is configured to swing in thegroove 128 relative to thefirst assembly 12. Thefirst assembly 12 is connected with a fourthrotary shaft 30 at thesecond end 122, and the fourthrotary shaft 30 is parallel with the firstrotary shaft 142. A tail end of the connectingpiece 18 away from thefirst end 120 is connected with a thirdrotary shaft 26 parallel with the fourthrotary shaft 30. Themain spring 16 is connected with the thirdrotary shaft 26 and the fourthrotary shaft 30. The connectingpiece 18 is formed integrally. - In the present embodiment, the
first assembly 12 is substantially formed in a rectangular shape. Thefirst assembly 12 includes thefirst end 120 and thesecond end 122 opposite to thefirst end 120. Thefirst assembly 12 includes thebottom plate 126 andside walls 128a extending upwards from two sides of thebottom plate 126. The guidinggroove 124 is provided in each of the twoside walls 128a. The guidinggroove 124 includes afirst end point 1240 and asecond end point 1242 opposite to thefirst end point 1240. Thesecond assembly 14 is rotatably connected with thefirst assembly 12 by means of the firstrotary shaft 142 and rotatably connected with the connectingpiece 18 by means of the secondrotary shaft 24, and the secondrotary shaft 24 is parallel with the firstrotary shaft 142. The connectingpiece 18 is accommodated in thefirst assembly 12 and abuts against the twoside walls 128a of thefirst assembly 12. The connectingpiece 18 is provided with the firstupper cover 180 so as to be fitted with thefirst assembly 12 to form thecavity 182, and thedamper body 200 is located in thecavity 182. The connectingpiece 18 is further provided with a secondupper cover 184, and the connectingassembly 22 is located below the secondupper cover 184. Thesecond assembly 14 has a sheet shape and is inserted into thegroove 128. The connectingpiece 18 connects themain spring 16 with thesecond assembly 14, and a connecting point of the connectingpiece 18 and thesecond assembly 14 deviates from the firstrotary shaft 142 of thesecond assembly 14, so that thesecond assembly 14 may drive the connectingpiece 18 to move so as to stretch themain spring 16, when thesecond assembly 14 rotates relative to thefirst assembly 12. - In the present embodiment, the fixing
subassembly 206 includes arectangular protruding block 2060 protruding upwards from thebottom plate 126 and apositioning pin 2062 connecting thedamper body 200 with thefirst assembly 12. Thedamper body 200 can be stopped by the protrudingblock 2060, so that thedamper body 200 can be prevented from sliding in the direction towards thesecond assembly 14. - Thus, the
damper body 200 can be positioned by means of the fixingsubassembly 206, which has a simple structure and is convenient to mount and detach. - In the present embodiment, the
cavity 180 has a rectangular shape, thedamper body 200 has a cylindrical shape, and shapes of thedamper body 200 and thecavity 182 are matched with each other. Thedamper body 200 is provided with a return spring therein. - In the present embodiment, the connecting
assembly 22 includes a connectingbody 224, the lockingspring 222 fitted over the connectingbody 224 and the drivenpulley 220 disposed to the connectingbody 224. The connectingbody 222 is provided with a fixedshaft 2240, the drivenpulley 220 has an annular shape and is fitted over the fixedshaft 2240, and the drivenpulley 220 can rotatably contact thecam portion 140. Thecam portion 140 has concave and convex portions configured to be in various contacts with the drivenpulley 220. - Accordingly, since the tensioning force of the
main spring 16 weakens along with a decrease of an included angle between thefirst assembly 12 and thesecond assembly 14, a supplementary tensioning force is provided by the lockingspring 222 of the connectingassembly 22, and the drivenpulley 220 of the connectingassembly 22 contacts thecam portion 140 of thesecond assembly 14, so that a power source is obtained. - In the present embodiment, a stopping
piece 32 fixed to thefirst assembly 12 is provided between the connectingassembly 22 and the connectingshaft 28, and the stoppingpiece 32 may stop thelocking spring 222 so as to compress thelocking spring 222. - The
first assembly 12 is disposed to the drop-down door, and thesecond assembly 14 is disposed to the device body. When thehinge 10 operates, a position of thesecond assembly 14 is constant, and thefirst assembly 12 may rotate around the firstrotary shaft 142 by a certain angle and drive the connectingpiece 18 connected to thesecond assembly 14 to move synchronously, so that themain spring 16 connected to the connectingpiece 18 may be stretched. Under actions of themain spring 16 and thedamper assembly 20, the drop-down door may be closed automatically and slowly. - Specifically, the balanced stage represents that the
hinge 10 transfers from a position n1 to a position n2, the critical stage represents that thehinge 10 transfers from the position n2 to a position n3, and the buffered-closing stage represents that thehinge 10 transfers from the position n3 to a position n4. When thesecond assembly 14 is located at the position n1 with respect to thefirst assembly 12, thehinge 10 has the largest opening angle, and the drop-down door is opened to the largest angle. When thesecond assembly 14 is located at the position n4 with respect to thefirst assembly 12, thehinge 10 has a smallest opening angle and a door body is in a closed state. - When the
second assembly 14 is located at the position n1 with respect to thefirst assembly 12, the connectingpiece 18 drives the thirdrotary shaft 26 to reach thefirst end point 1240, themain spring 16 is stretched by the connectingpiece 18 so as to be in the stretched state, and the tensioning force of themain spring 16 is balanced with the load weight of thehinge 10. When thehinge 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 themain spring 16 is balanced with the load weight of thehinge 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. - When the
second assembly 14 is located at the position n2 with respect to thefirst assembly 12, the tensioning force of themain spring 16 is larger than the load weight of thehinge 10, the connectingshaft 28 contacts theposition limiting piece 204, and the drivenpulley 220 of the connectingassembly 22 contacts thecam portion 140. When thehinge 10 operates in an angle b, i.e. in the critical stage from the position n2 to the position n3, the connectingpiece 18 connected with themain spring 16 slides in a direction towards themain spring 16, and the connectingshaft 28 pushes thedamper body 200 in the direction towards themain spring 16, i.e. thehinge 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. - When the
second assembly 14 is located at the position n3 with respect to thefirst assembly 12, the tensioning force of themain spring 16 is larger than the load weight of thehinge 10, and the thirdrotary shaft 26 is located at thesecond end point 1242. When thehinge 10 operates in an angle c, i.e. in the buffered-closing stage from the position n3 to the position n4, the tensioning force of themain spring 16 allows thesecond assembly 14 to continue rotating towards the position n4, the extending and retractingrod 202 starts to be retracted into thedamper body 200, and hence thedamper body 200 generates a reverse buffering force, so as to slow down a rotation speed of the door body driven by thehinge 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. - When the
second assembly 14 is located at the position n4 with respect to thefirst assembly 12, thehinge 10 has the smallest opening angle, and the door body is in the closed state. In this case, themain spring 16, the lockingspring 222 and the return spring are all in the natural state. - When the
hinge 10 is opened from the position n4 to any position in a range of the angle c under an action of an external force (which is usually applied by human), thedamper body 200 slides in a direction towards thesecond assembly 14, and the return spring applies a resistance force to thedamper body 200 to allow a hydraulic oil in thedamper body 200 to reset. When the external force is withdrawn, as the tensioning force of themain spring 16 is larger than the load weight of thehinge 10, the drop-down door rotates in a direction towards themain spring 16, that is, the drop-down door will still be closed in a slow and uniform speed, i.e. thehinge 10 will still return to the position n4. - During an opening process of the drop-down door, i.e. a process of the
hinge 10 rotating from the position n4 to the position n1, themain spring 16 is stretched from an initial state, and thelocking spring 222 is compressed. Since the extending and retractingrod 202 drives thedamper body 200 to move in the direction towards thesecond assembly 14, the return spring resets thedamper body 200, and the return spring also restores to the natural state. - In the present embodiment, corresponding to the balanced stage, the
hinge 10 is located at a position between the position n1 and the position n2, in which case the tensioning force produced by themain spring 16 is balanced with the load weight of thehinge 10, and thus the drop-down door may be stopped at any position in a range of the angle a. Corresponding to the balanced stage, 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°. - In the present embodiment, corresponding to the critical stage, the
hinge 10 is located at a position between the position n2 and the position n3, in which case the tensioning force produced by themain spring 16 is larger than the load weight of thehinge 10, and thus the hinge may rotate from the position n2 to the position n3 rapidly in a range of the angle b. Corresponding to the critical stage, 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°. - In the present embodiment, corresponding to the buffered-closing stage, the
hinge 10 is located at a position between the position n3 and the position n4, in which case the tensioning force produced by themain spring 16 is larger than the load weight of thehinge 10, and thus the hinge may rotate from the position n3 to the position n4 slowly in the range of the angle c. Corresponding to the buffered-closing stage, 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°. - Thus, the drop-down door may be closed automatically and slowly in a designed angle range, thus improving the using experience of the user.
- Certainly, numerical values above are provided as examples, so as to aid in illustrating a manner in which the automatic and slow closing of the drop-down door in a certain opening and closing angle is realized by means of the
hinge 10, but are not used to limit the present disclosure. - 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. Thefirst assembly 12 is fixedly disposed to the drop-down door, and thesecond assembly 14 is fixedly disposed to the device body. Optionally, the device is an oven. Certainly, the oven only serves as an example, but is not used to limit the present disclosure. Thus, 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. - Although embodiments of the present invention have been shown and illustrated, it shall be understood by those skilled in the art that various changes, modifications, alternatives and variants without departing from the scope of the present invention as defined by the claims are acceptable.
Claims (9)
- A hinge (10) having a buffering effect, comprising:a first assembly (12) and a second assembly (14), the first assembly (12) having 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) having a guiding groove (124), the second assembly (14) being provided with a cam portion (140), wherein the first assembly (12) and the second assembly (14) are rotatably connected by a first rotary shaft (142),a main spring (16) disposed in the first assembly (12), and having a first end of the main spring (16) fixedly connected with the second end (122) of the first assembly (12);a connecting piece (18) disposed in the first assembly (12), the connecting piece (18) having 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) being rotatably and slidably disposed in the guiding groove (124), the connecting piece (18) being provided with an first upper cover (180) so as to be fitted with the first assembly (12) to form a cavity (182);a damper assembly (20), comprising:a damper body (200) located in the cavity (182);an extending and retracting rod (202) extending from the damper body (200) towards the second assembly (14);a position limiting piece (204) disposed at a top end of the extending and retracting rod (202); anda fixing subassembly (206) configured to fix the damper body (200) to the first assembly (12); anda connecting assembly (22) disposed between the second assembly (14) and the extending and retracting rod (202), the connecting assembly (22) comprising a driven pulley (220) and a locking spring (222), the driven pulley (220) being configured to contact the cam portion (140),wherein the connecting piece (18) is provided with a connecting shaft (28) between the connecting assembly (22) and the position limiting piece (204), the connecting shaft (28) is configured to be driven by the connecting piece (18) to 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),wherein 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 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);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);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) generates a reverse buffering force, 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);wherein the first assembly (12) comprises a bottom plate (126) and side walls (128a) extending upwards from two sides of the bottom plate (126), and the guiding groove (124) is formed in each of the two side walls (128a);characterized in that,the fixing subassembly (206) includes a 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 protruding block (2060) is configured to stop the damper body (200) so as to prevent the damper body (200) from sliding in a direction towards the second assembly (14).
- The hinge (10) having the buffering effect according to claim 1, wherein the cavity (182) has a rectangular shape, the damper body (200) has a cylindrical shape, and shapes of the damper body (200) and the cavity (182) are matched with each other.
- The hinge (10) having the buffering effect according to claim 1, wherein the connecting assembly (22) comprises 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 (224) is provided with a fixed shaft (2240), the driven pulley (220) has an annular shape and is fitted over the fixed shaft (2240), and the driven pulley (220) is configured to rotatably contact the cam portion (140).
- The hinge (10) having the buffering effect according to claim 3, wherein 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) is configured to stop the locking spring (222) so as to compress the locking spring (222).
- The hinge (10) having the buffering effect according to any one of claims 1 to 4, wherein corresponding to the balanced stage, a drop-down door is configured to rotate by an angle of 50°-70°.
- The hinge (10) having the buffering effect according to any one of claims 1 to 5, wherein corresponding to the critical stage, a drop-down door is configured to rotate by an angle 10°-15°.
- The hinge (10) having the buffering effect according to any one of claims 1 to 6, wherein corresponding to the buffered-closing stage, a drop-down door is configured to rotate by an angle of 10°-25°.
- The hinge (10) having the buffering effect according to claim 1, wherein the first assembly (12) is configured as a rectangular casing.
- A device, comprising a device body, a drop-down door and a hinge (10) configured for the device according to any one of claims 1 to 8, the first assembly (12) and the second assembly (14) of the hinge (10) are configured to be fixed to the device body and the drop-down door respectively and are rotatably connected by means of the first rotary shaft (142), so that the drop-down door is configured to be rotatably pulled downwards with respect to the device body.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201510064634.8A CN104563700B (en) | 2015-02-06 | 2015-02-06 | There is the hinge of buffering effect and there is the device of described hinge |
PCT/CN2015/077725 WO2016123872A1 (en) | 2015-02-06 | 2015-04-28 | Hinge having damping effect, and apparatus having said hinge |
Publications (3)
Publication Number | Publication Date |
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EP3255234A1 EP3255234A1 (en) | 2017-12-13 |
EP3255234A4 EP3255234A4 (en) | 2018-11-21 |
EP3255234B1 true EP3255234B1 (en) | 2023-07-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15880827.9A Active EP3255234B1 (en) | 2015-02-06 | 2015-04-28 | Hinge having damping effect, and apparatus having said hinge |
Country Status (4)
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EP (1) | EP3255234B1 (en) |
CN (1) | CN104563700B (en) |
RU (1) | RU2656843C1 (en) |
WO (1) | WO2016123872A1 (en) |
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CN105534276A (en) * | 2016-02-22 | 2016-05-04 | 广东美的厨房电器制造有限公司 | Hinge and cooking device |
CN107419986B (en) * | 2017-08-28 | 2023-05-09 | 珠海格力电器股份有限公司 | Damping hinge and device provided with same |
CN208502505U (en) * | 2018-04-11 | 2019-02-15 | 九牧厨卫股份有限公司 | A kind of rotation power-assisted damping unit and its relevant door and window structure and shower house |
CN110130765A (en) * | 2019-06-18 | 2019-08-16 | 河南天合铰链有限公司 | A kind of linkage and device |
CN114851247B (en) * | 2022-05-17 | 2024-01-12 | 湖北省天一智能科技有限公司 | Flexible compensator with centripetal force structure |
CN115095238A (en) * | 2022-06-29 | 2022-09-23 | 广东欧派克家居智能科技有限公司 | Novel damper for sliding door and window |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE7715244U1 (en) * | 1977-05-13 | 1977-08-18 | Fa. Richard Heinze, 4900 Herford | FURNITURE HINGE |
IT1276730B1 (en) * | 1995-06-15 | 1997-11-03 | Faringosi Hinges Srl | HINGE FOR DOORS OF HOUSEHOLD APPLIANCES, FURNITURE AND SIMILAR EQUIPPED WITH SEPARATE COMBINED ACTION MEANS FOR BALANCING THE |
KR100450581B1 (en) * | 2002-02-28 | 2004-09-30 | 삼성전자주식회사 | Hinge device and portable terminal therewith |
TWM254061U (en) * | 2004-02-06 | 2004-12-21 | Hon Hai Prec Ind Co Ltd | Hinge structure |
CN201521184U (en) * | 2009-10-10 | 2010-07-07 | 肖又松 | Hinge |
GB201116913D0 (en) * | 2011-09-30 | 2011-11-16 | Chung Chow | Damped self-centreing hinge |
GB2504917B (en) * | 2012-01-27 | 2015-06-03 | Chung Chow | Damped self-centering hinge |
EP2664737B1 (en) * | 2012-05-15 | 2015-12-16 | Atasan Metal Sanayi Ve Ticaret Limited Sirketi | A door hinge |
CN103452415B (en) * | 2013-09-03 | 2015-11-18 | 浙江安德电器有限公司 | Oven door closes buffer hinge device |
CN203925091U (en) * | 2014-04-15 | 2014-11-05 | 吴枝祥 | 165 ° of damping buffering hinges |
CN204126434U (en) * | 2014-08-06 | 2015-01-28 | 胡国衡 | A kind of baking box damp hinge |
CN204152354U (en) * | 2014-10-13 | 2015-02-11 | 广东星徽精密制造股份有限公司 | A kind of baking box buffer hinge |
-
2015
- 2015-02-06 CN CN201510064634.8A patent/CN104563700B/en active Active
- 2015-04-28 WO PCT/CN2015/077725 patent/WO2016123872A1/en active Application Filing
- 2015-04-28 EP EP15880827.9A patent/EP3255234B1/en active Active
- 2015-04-28 RU RU2017131208A patent/RU2656843C1/en active
Also Published As
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CN104563700A (en) | 2015-04-29 |
EP3255234A4 (en) | 2018-11-21 |
RU2656843C1 (en) | 2018-06-06 |
EP3255234A1 (en) | 2017-12-13 |
CN104563700B (en) | 2016-11-02 |
WO2016123872A1 (en) | 2016-08-11 |
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