CN111395899A - Hinge device for upward opening and closing door - Google Patents

Hinge device for upward opening and closing door Download PDF

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Publication number
CN111395899A
CN111395899A CN201910185303.8A CN201910185303A CN111395899A CN 111395899 A CN111395899 A CN 111395899A CN 201910185303 A CN201910185303 A CN 201910185303A CN 111395899 A CN111395899 A CN 111395899A
Authority
CN
China
Prior art keywords
torsion spring
cover
housing
shaft
elastic force
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.)
Granted
Application number
CN201910185303.8A
Other languages
Chinese (zh)
Other versions
CN111395899B (en
Inventor
弘灿镐
朴光源
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.)
I One Innotech Ltd
I One Innotech Co Ltd
Original Assignee
I One Innotech 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
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Publication of CN111395899A publication Critical patent/CN111395899A/en
Application granted granted Critical
Publication of CN111395899B publication Critical patent/CN111395899B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/0009—Adjustable 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
    • E05F1/1207—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis
    • E05F1/1215—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis with a canted-coil torsion spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/02—Hinges with pins with one pin
    • 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
    • E05F1/1008—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 with a coil spring parallel with the pivot axis
    • E05F1/1016—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 with a coil spring parallel with the pivot axis with a canted-coil torsion spring
    • 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
    • E05F1/1207—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis
    • 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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The hinge device of an upward opening and closing type door of the present invention comprises: the shell is fixed on the body; a shaft inserted into the housing and connected to the cover; a torsion spring arranged between the housing and the shaft for providing a torsion elastic force to automatically open the cover; an elasticity adjusting part arranged at one side of the shell for adjusting the elasticity of the torsion spring; and a free opening part forming a free opening section which is not affected by the elastic force of the torsion spring when the cover is opened, so as to absorb the impact when the cover is opened, thereby adjusting the elastic force of the torsion spring according to the weight of the cover, and absorbing the impact when the cover is opened without an additional damping device.

Description

Hinge device for upward opening and closing door
Technical Field
The present invention relates to a hinge device for an upward opening/closing door, comprising: when the lock of the cover is released by providing a cover type that opens and closes in the upward direction, the cover is automatically opened in the upward direction and the impact is absorbed when the cover is opened.
Background
Generally, an upwardly opening/closing door is mainly used for a cover of an electric rice cooker or a cover of a washing machine, and one side is connected to a body by a hinge device and opened and closed in an upper direction.
The electric pressure cooker is provided with a cover which is opened and closed towards the upper direction, a hinge device is arranged between the cover and a body to support the cover in a mode of rotating the cover towards the upper direction, and a spring is arranged in a mode of automatically opening the cover when the locking of the cover is released.
As disclosed in korean patent laid-open publication No. 10-0766133 (10.04/2007), the hinge device of the conventional electric pressure cooker includes: a body; a cover which is mounted on the upper surface of the body in an openable and closable manner; a hinge shaft serving as a rotation shaft when the cover is opened; the spring is arranged on the hinge shaft to provide force towards the opening direction of the body cover; and an impact absorbing clip rotating together with the hinge shaft to provide a damping force to the hinge shaft to absorb an impact.
In the hinge device of the conventional electric pressure cooker as described above, since a plurality of parts are independently provided between the main body and the lid, there is a problem in that it is inconvenient to assemble and replace the hinge device.
Further, since the spring is wound around the hinge shaft, there is a concern that the elastic force of the spring may be weakened as the usage time increases, and it is difficult to replace the spring.
Further, the elastic force of the spring cannot be adjusted according to the weight of the cover or the selection of the user, and thus, there is a problem in that it is inconvenient to use.
Documents of the prior art
Patent document
Korean granted patent publication No. 10-0766133(2007, 10 months and 04 days)
Disclosure of Invention
Accordingly, an object of the present invention is to provide a hinge device for an upward opening/closing door, comprising: the hinge device is modularized into 1, is easy to be arranged between the body and the cover, and is easy and convenient to replace.
Another object of the present invention is to provide a hinge device for an upward opening/closing door, comprising: the torsion spring is used, so that the phenomenon that the elastic force of the spring is reduced can be prevented even if the using time is increased, and the elastic force of the torsion spring can be adjusted, so that the use is convenient.
Another object of the present invention is to provide a hinge device for an upward opening/closing door, comprising: the free opening section of the cover is formed, and the impact generated when the cover is opened can be absorbed without an additional damping device, so that the cost can be saved, and the cover can be further opened in the free opening section according to the selection of a user, so that the use is convenient.
In order to achieve the above object, a hinge device of the present invention includes: the shell is fixed on the body; a shaft inserted into the housing and connected to the cover; a torsion spring arranged between the housing and the shaft for providing a torsion elastic force to automatically open the cover; an elastic force adjusting part configured at one side of the shell for adjusting the elastic force of the torsion spring; and a free opening part which forms a free opening interval that is not affected by the elasticity of the torsion spring when the cover is opened so as to absorb the impact when the cover is opened.
The shaft is projected from one end of the housing, the auxiliary shaft is projected from the other end of the housing, and the housing is fixed to a shaft fixing portion formed on the cover, and a fixing bracket is formed on a side surface of the housing, so that the housing can be fixed to the main body.
The elastic force adjusting part may include: a cap member rotatably inserted into one end of the housing, connected to the torsion spring, and adjusting an elastic force of the torsion spring when rotated; pin holes formed at predetermined intervals in the circumferential direction on the outer peripheral surface of the cap member; at least one pin fixing groove formed at one end of the shaft along a circumferential direction; and a fixing pin inserted into the pin fixing groove of the shaft through a pin hole formed in the cap member to fix the cap member and the shaft.
The free opening part may include: at least two first groove portions formed on an outer peripheral surface of the shaft along a circumferential direction so as to have a predetermined section; a ball inserted into the first slot and rolling along the first slot in an automatic opening section A where the cover is automatically opened by an elastic force of the torsion spring; an inner member inserted into the shaft and connected to the torsion spring, and having two insertion holes formed along a circumferential direction, into which balls are inserted; an outer member inserted into and fixed to the outer peripheral surface of the inner member; and a second groove portion formed in an inner surface of the outer member along a circumferential direction so as to have a predetermined section, wherein when the balls roll, the inner member rotates together with the shaft to form a freely openable section B in which the cover is freely opened without being affected by an elastic force of the torsion spring.
As described above, in the hinge device according to the present invention, the hinge device is provided between the body and the cover in a modular number of 1, so that the hinge device can be easily assembled between the body and the cover, and the replacement of the hinge device can be easily and conveniently performed.
Further, since the torsion spring is used, even if the use time is increased, the phenomenon that the elastic force of the spring is reduced can be prevented, and the elastic force of the torsion spring can be adjusted according to the weight of the cover, thereby facilitating the use.
In addition, the free opening section of the cover is formed, and the impact generated when the cover is opened can be absorbed without an extra damping device, so that the cost can be saved, and the cover can be further opened in the free opening section according to the selection of a user, so that the use is convenient.
Drawings
Fig. 1 is a perspective view of a hinge device according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of a hinge device according to an embodiment of the present invention.
Fig. 3 is a sectional view of a hinge device according to an embodiment of the present invention.
Fig. 4 is a sectional view of a free opening portion of a hinge device according to an embodiment of the present invention.
Fig. 5 to 7 are operation state diagrams of the free opening portion of the hinge device according to an embodiment of the present invention.
Fig. 8 is a sectional view of a hinge device according to a second embodiment of the present invention.
Fig. 9 is an exploded perspective view of a hinge device according to a second embodiment of the present invention.
Fig. 10 is a front view of a hinge device according to a third embodiment of the present invention.
Fig. 11 is a front view of a hinge device according to a fourth embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this process, the sizes, shapes, and the like of the constituent elements shown in the drawings are exaggerated for clarity and convenience of description. Also, terms specifically defined in consideration of the structure and action of the present invention may be different according to the intention or practice of a user or an operator. Such terms are to be defined throughout the present specification.
Fig. 1 is a perspective view of a hinge device of an upward opening/closing door according to an embodiment of the present invention, fig. 2 is an exploded perspective view of the hinge device of the upward opening/closing door according to the embodiment of the present invention, and fig. 3 is a sectional view of the hinge device of the upward opening/closing door according to the embodiment of the present invention.
Referring to fig. 1 to 3, a hinge device 100 for an upward opening and closing door according to an embodiment of the present invention includes: a housing 10 fixed to the body 110; a shaft 20 inserted into the housing 10 and connected to the cover 120; a torsion spring 30 disposed between the housing 10 and the shaft 20 to provide a torsion elastic force to automatically open the cover 120; an elastic force adjusting part 40 disposed at one side of the housing 10 to adjust an elastic force of the torsion spring 30; and a free opening part 50 forming a free opening section blocking the elastic force of the torsion spring 30 when the cover 120 performs an opening motion, so as to absorb an impact when the cover 120 performs an opening motion, and to adjust the opening angle of the cover according to a user's selection.
The body 110 may be adapted to a body of an electric rice cooker or a washing machine, and the cover 120 may be adapted to a cover of an electric rice cooker or a cover of a washing machine.
A shaft 20 protrudes from one end of the housing 10, an auxiliary shaft 22 protrudes from the other end, and is connected to the cover 120, and a fixing bracket 12 is formed on a side surface of the housing 10 and fixed to the body 120.
A shaft fixing portion 122 for fixing the shaft 20 and the auxiliary shaft 22 is formed on the cover 120, and a shaft fixing cap 124 for inserting and fixing the shaft 20 and the auxiliary shaft 22 is mounted on the shaft fixing portion 122.
The body 110 is formed with an insertion groove 112 into which the fixing bracket 12 is inserted, and the hinge device 100 is attached to the body 110 by inserting the fixing bracket 12 into the insertion groove 112 and then bolting it.
As described above, the hinge device 100 of the present embodiment is formed in 1 module, and the hinge device 100 and the cover 120 are assembled by inserting the shaft 20 and the auxiliary shaft 22 into the shaft fixing portion 122 of the cover 120 while protruding from both ends of the housing 10, and the assembly is completed by bolting the fixing bracket 12 formed on the side surface of the housing 10 to the body 110, so that the hinge device 100 is easily and conveniently assembled between the cover 120 and the body 110.
The torsion spring 30 is disposed on the outer circumferential surface of the shaft 20, and has a first connecting portion 32 connected to the elastic force adjusting portion formed at one end thereof and a second connecting portion 34 connected to the free opening portion 50 formed at the other end thereof.
The elasticity adjusting part 40 adjusts the elasticity of the torsion spring 30 by extending and contracting the torsion spring 30, and includes: a cap member 42 rotatably inserted into one end of the housing 10 to fix the first connection portion 32 of the torsion spring 30; pin holes 44 formed at predetermined intervals on the outer peripheral surface of the cap member 42; pin fixing grooves 48 formed in the circumferential direction at one end of the shaft 20 in a number of 1 or more; and a fixing pin 46 inserted into a pin fixing groove 48 of the shaft 20 through a pin hole 44 formed in the cap member 42 to fix the cap member 42 and the shaft 20.
In the elasticity adjusting portion 40 as described above, when the cap member 42 is rotated, the torsion spring 46 having the first connecting portion fixed to the cap member is rotated and expanded together, thereby adjusting the elasticity of the torsion spring 30. Thereafter, when the fixing pin 46 is inserted into the pin hole 44 formed in the cap member 42 corresponding to the position and the pin fixing groove 48 formed in the shaft 20, the elastic force of the torsion spring 30 is adjusted while fixing the cap member 42 and the shaft 20.
As described above, the elastic force of the torsion spring 30 can be adjusted by rotating the cap member 42, and therefore, the elastic force of the torsion spring 30 can be appropriately adjusted according to the weight of the cover 120.
The free opening portion 50 is a section in which the cover 120 is freely rotated within a predetermined section range without being affected by the elastic force of the torsion spring 30 after the cover 120 is opened by the elastic force of the torsion spring 30, and has a shock absorbing function when the cover 120 reaches the free opening section after being opened by the elastic force of the torsion spring 30, thereby absorbing shock when the cover 30 is opened by the elastic force of the torsion spring 30 and allowing a user to adjust the opening angle of the cover 30.
As shown in fig. 4, the free opening portion 50 includes: at least two first groove portions 52 formed on the outer circumferential surface of the shaft 20 along the circumferential direction so as to have a predetermined section; at least two balls 56 inserted into the first slot portion 52 and rolling along the first slot portion 52 in a round bar shape; an inner member 54 inserted into the shaft 20 and connected to the second connecting portion 34 of the torsion spring 30, and having two insertion holes 64 formed in a circumferential direction for inserting the balls 56; an outer member 58 inserted into the outer peripheral surface of the inner member 54 and fixed to the housing 10; and a second groove portion 72 formed in an inner surface of the outer member 58 in a circumferential direction so as to have a predetermined section, and when the balls 66 roll, the inner member 54 and the shaft 20 rotate together to form a freely openable section B in which the cover 120 is freely opened without being affected by the elastic force of the torsion spring.
The inner member 54 includes: a first cylindrical portion 60 having one end contacting an inner surface of the housing 10 and formed with a coupling groove 66 to which the second coupling portion 34 of the torsion spring 30 is inserted; and a second cylindrical portion 62 having an outer diameter smaller than that of the first cylindrical portion 60 and formed with two insertion holes 64 into which the balls 56 are inserted in the circumferential direction.
The outer member 58 includes: a cylindrical portion 68 which is inserted into the outer peripheral surface of the second cylindrical portion 62 of the inner member 54 and has a second groove portion 72 formed therein; and a polygonal portion 70 formed on a side surface of the cylindrical portion 68, having a polygonal outer peripheral surface, and inserted into a polygonal groove 74 formed in the housing 10 to fix the external member 58 to the housing 10.
As described above, when the external member 58 is fixed to the housing 10, the external member 58 is fixed to the housing 10 and rotated together when the polygonal portion 70 of the external member 58 is inserted into the polygonal groove 74 of the housing 10, and thus, an additional fixing member is not required.
The operation of the free opening portion 50 according to the embodiment of the present invention configured as described above will be described below.
Fig. 5 to 7 are sectional views showing the function of the free opening portion in each section when the cover is opened.
As shown in fig. 4, in a state where the cover 120 is locked to the body 110 by the locking device, the balls 56 are located at a first position Q at one end of the first slot portion 52 as the shaft 20 and at a second position W at one end of the second slot portion 72 as the outer member 58.
In this state, if the lock of the cover 120 is released, the elastic force of the torsion spring 30 is transmitted to the cover 120 to automatically open the cover 120. The cover 120 connected to the shaft 20 is opened while the shaft 20 is rotated by the elastic force of the torsion spring 30.
As shown in fig. 5, when the shaft 20 rotates, the balls 56 roll along the first groove 52 of the shaft 20, and do not interfere with the rotational movement of the shaft 20. As shown in fig. 6, when the cover 120 is opened in the maximum range in which the spring force of the torsion spring 30 acts, the balls 56 reach the third position E, which is the other end of the first slot portion 52. Then, the balls 56 are inserted into the insertion holes 64 of the inner member 54 while being locked to the first groove portions 52, and the first groove portions 52 are formed in the shaft 20, so that the shaft 20 is connected to the inner member 54 via the balls 56, and is not affected by the elastic force of the torsion spring 30.
The angle of the automatic opening section a, which is a section in which the cover 120 automatically opens by the elastic force of the torsion spring 30 and in which the ball 56 rolls in the first groove 52, may be 70 to 80 degrees.
When the balls 56 reach the third position E of the first groove 52, the inner member 54 is connected to the shaft 20 via the balls 56 and rotates together with the shaft, and therefore, the ball 56 is not affected by the elastic force of the torsion spring 30, and the section in which the balls 56 roll along the second groove 72 formed in the outer member 58 becomes the free open section B that is not affected by the elastic force of the torsion spring 30.
The angle of the free opening interval B can be 25-35 degrees.
Therefore, the cover 120 can be opened between 95 degrees and 115 degrees of the sum of the automatic opening section a and the free opening section B, and the user can freely set the opening angle of the cover 120.
As described above, when the cover 120 passes through the automatic opening section a, the cover moves to the free opening section B that is not affected by the elastic force, and when the cover 120 performs the opening operation, the impact is absorbed in the free opening section B, thereby preventing the opening impact from occurring.
Fig. 8 is a sectional view of a hinge device of an upward opening and closing door according to a second embodiment of the present invention, and fig. 9 is an exploded perspective view of the hinge device of the upward opening and closing door according to the second embodiment of the present invention.
The hinge device of the second embodiment includes: a housing 130 fixed to the body 110; a torsion spring 140 disposed inside the housing 130 to provide a torsion elastic force; an elastic force adjusting part 170 disposed at one side of the torsion spring 140, for adjusting the elastic force of the torsion spring 140 by extending and contracting the torsion spring 140; and a clutch device 150 disposed at the other side of the torsion spring 140 to transmit or block the elastic force of the torsion spring 140 according to the rotation angle of the cover 120.
The housing 130 may be made of reinforced plastics and alloys, stainless steel, and the like.
The clutch device 150 is configured to transmit the rotational force received from the link 160 to the torsion spring 140 when the cover 120 is opened, and to not transmit the rotational force of the link 160 to the torsion spring 140 when the rotational force is equal to or greater than a predetermined angle.
Such a clutch device 150 includes: a first cap member 152 which is attached to one side of the housing 130 in a sealable manner, and from which the connection rod 160 is pulled out; an inner clutch 156 integrally formed with the connecting rod 160 and having at least two grooves 154 formed in a circumferential direction; at least two balls 158 inserted into the grooves 154 of the inner clutch 156; and an outer clutch 164 having one end connected to the torsion spring 140 to insert the inner clutch 156, and at least two grooves 162 formed in a circumferential direction to insert the balls 158.
In the clutch device 150 as described above, when the balls 158 are positioned in the grooves 154 of the inner clutch 156 and the grooves 162 formed in the outer clutch 164 are positioned outside the balls 158, the balls 158 transmit the rotational force of the inner clutch 156 to the outer clutch 164, thereby transmitting the rotational force of the connecting rod 160 to the torsion spring 140.
When the cover 120 is rotated by a predetermined angle or more to reach a free-open range in which the elastic force does not act on the cover 120, the balls 158 are disengaged from the grooves 154 formed in the inner clutch 156, and in this case, the inner clutch 156 and the outer clutch 164 idle each other, so that the rotational force of the connecting rod 160 is not transmitted to the torsion spring 140.
The elasticity adjusting part 170 includes: a support portion 142 formed at one end of the external clutch 64 of the clutch device 150 and connected to the torsion spring 140; a spring support 146 inserted into the support 142 to support one end of the spring 144; a rotating member 172 rotatably installed inside the housing 130 and connected to one end of the torsion spring 140; a spring 144 disposed between the rotating member 172 and the spring support 146 and providing an elastic force to the rotating member 172; a second cap part 174 mounted to one end of the housing 130; and fixing portions 182 and 184 formed between the inner surface of the second cap member 174 and the upper surface of the rotary member 172, and fixing the second cap member 174 and the rotary member 172 after adjusting the elastic force of the torsion spring 140 by rotating the rotary member 172.
The rotation member 172 is rotatably disposed on the inner surface of the housing 130, and a tool groove 188 is formed on the upper surface, so that when the rotation member 172 is rotated in one direction, the torsion spring 140 is contracted to increase the elastic force, and when the rotation member 172 is rotated in the other direction, the torsion spring 140 is extended to decrease the elastic force.
The fixing portions 182, 184 include: an insertion groove portion 184 vertically formed on the inner face of the second cap member 174 for inserting a fixing pin 186; and a gear groove portion 182 formed at a predetermined interval on the upper outer circumferential surface of the rotating member 172, into which a fixing pin 186 is inserted.
The fixing portions 182 and 184 rotate the rotary member 172 to adjust the elastic force of the torsion spring 140, and then, a fixing pin 186 is inserted into a position where the insertion groove portion 184 and the gear groove portion 170 are aligned to fix the rotary member 172 and the second cap member 174.
Fig. 10 shows a hinge device according to a third embodiment of the present invention, in which a cover bracket 92 is attached to the ends of a shaft 20 and an auxiliary shaft 22, and the cover bracket 92 is fixed to a pair of shaft fixing portions 122 formed on a cover 120 by positioning the cover bracket 92 on the inner surface of the pair of shaft fixing portions 122 and then bolting it to the outer peripheral surface of the shaft fixing portions 122.
Then, the fixing bracket 12 formed in the housing 10 is inserted into the body 110 and then bolted, thereby completing the assembly.
Fig. 11 shows a hinge device according to a fourth embodiment of the present invention, in which the hinge device 100 is assembled to the cover 120 by inserting the connection member 130 into the housing 10 through the shaft fixing portion 122 formed in the cover 120 after the housing 10 is positioned inside the shaft fixing portion 122.
Then, the fixing bracket 12 formed in the housing 10 is inserted into the body 110 and then bolted, thereby completing the assembly.
As described above, the hinge device of the present invention is formed as one module, and thus, if the cover 120 and the body 110 are bolted, assembly is completed, and thus, assembly and separation are easy and convenient.
While the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above embodiments, and various changes and modifications can be made by those skilled in the art without departing from the spirit of the present invention.

Claims (12)

1. A hinge device for an upwardly opening and closing door, comprising:
the shell is fixed on the body;
a shaft inserted into the housing and connected to the cover;
a torsion spring arranged between the housing and the shaft for providing a torsion elastic force to automatically open the cover;
an elastic force adjusting part configured at one side of the shell for adjusting the elastic force of the torsion spring; and
and a free opening part which forms a free opening interval that is not affected by the elasticity of the torsion spring when the cover is opened so as to absorb the impact when the cover is opened.
2. The hinge device of an upward opening/closing door according to claim 1, wherein a shaft is protruded from one end of the housing, an auxiliary shaft is protruded from the other end of the housing, and the housing is fixed to a shaft fixing portion formed on the cover, and a fixing bracket is formed on a side surface of the housing, so that the housing is fixed to the body.
3. The hinge device of an upward opening and closing door according to claim 1, wherein the elastic force adjusting part comprises:
a cap member rotatably inserted into one end of the housing, connected to the torsion spring, and adjusting an elastic force of the torsion spring when rotated;
pin holes formed at predetermined intervals in the circumferential direction on the outer peripheral surface of the cap member;
at least one pin fixing groove formed at one end of the shaft along a circumferential direction; and
and a fixing pin inserted into the pin fixing groove of the shaft through a pin hole formed in the cap member to fix the cap member and the shaft.
4. The hinge device of an upward opening and closing door according to claim 1, wherein the free opening portion comprises:
at least two first groove portions formed on an outer peripheral surface of the shaft along a circumferential direction so as to have a predetermined section;
a ball inserted into the first slot and rolling along the first slot in an automatic opening section (A) where the cover is automatically opened by the elastic force of the torsion spring;
an inner member inserted into the shaft and connected to the torsion spring, and having two insertion holes formed along a circumferential direction, into which balls are inserted;
an outer member inserted into and fixed to the outer peripheral surface of the inner member; and
and a second groove part formed on the inner surface of the outer part along the circumferential direction in a manner of having a predetermined section, wherein when the ball rolls, the inner part rotates together with the shaft to form a free opening section (B) which is not influenced by the elastic force of the torsion spring and can be opened freely.
5. The hinge device of an upward opening and closing door according to claim 4, wherein the inner member comprises:
a first cylindrical portion formed with a connecting groove connected with the torsion spring; and
and a second cylindrical portion having an outer diameter smaller than that of the first cylindrical portion, and having an insertion hole formed therethrough so that the ball passes therethrough.
6. The hinge device of an upward opening and closing door according to claim 5, wherein the outer member comprises:
a cylindrical part inserted into the outer peripheral surface of a second cylindrical part of the internal component, and a second slot part formed on the inner surface of the cylindrical part; and
and a polygonal portion formed on a side surface of the cylindrical portion, having a polygonal outer peripheral surface, and inserted into a polygonal groove formed on an inner surface of the housing to fix the external member to the housing.
7. The hinge device of an upward opening and closing door according to claim 4, wherein the angle of the automatic opening section (A) is 70 to 80 degrees.
8. The hinge device of an upward opening and closing door according to claim 4, wherein the angle of the free opening section (B) is 25 to 35 degrees.
9. The hinge device of an upward opening/closing door according to claim 1, wherein the housing is disposed inside a shaft fixing portion formed on the cover, and a shaft disposed inside the housing is connected to the shaft fixing portion by two connecting members inserted to an outside of the shaft fixing portion.
10. A hinge device for an upwardly opening and closing door, comprising:
the shell is fixed on the body;
a torsion spring disposed inside the housing to provide a torsional elastic force;
an elastic force adjusting part which is arranged at one side of the torsion spring and makes the torsion spring stretch to adjust the elastic force of the torsion spring; and
and a clutch device disposed at the other side of the torsion spring for transmitting or blocking the elastic force of the torsion spring according to the rotation angle of the cover, thereby absorbing the impact when the cover is opened.
11. The hinge device for an upward opening and closing door according to claim 10, wherein the clutch device comprises:
a first cap member which is attached to one side of the housing in a sealable manner and from which the connection rod is pulled out;
an internal clutch integrally formed with the connecting rod and having at least two grooves formed in a circumferential direction;
at least two balls inserted into the groove of the internal clutch; and
and an external clutch having one end connected to the torsion spring to allow the internal clutch to be inserted therein, and having at least two grooves formed in a circumferential direction for inserting the balls.
12. The hinge device of an upward opening and closing door according to claim 10, wherein the elastic force adjusting part comprises:
a support part formed at one end of an external clutch of the clutch device and connected with the torsion spring;
a spring support part inserted into the support part for supporting one end of the spring;
a rotating member rotatably installed inside the housing and connected to one end of the torsion spring;
a spring disposed between the rotating member and the spring support portion to provide an elastic force to the rotating member;
a second cap member mounted on one end of the housing; and
and a fixing part formed between the inner surface of the second cap member and the upper surface of the rotating member, for fixing the second cap member and the rotating member after adjusting the elastic force of the torsion spring by rotating the rotating member.
CN201910185303.8A 2019-01-03 2019-03-12 Hinge device for upward opening and closing door Active CN111395899B (en)

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KR10-2019-0000660 2019-01-03
KR1020190000660A KR102201033B1 (en) 2019-01-03 2019-01-03 Hinge apparatus for upward opening door

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CN111395899B CN111395899B (en) 2021-11-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102495147B1 (en) * 2020-11-04 2023-02-06 조동식 Hinge for door
KR102466730B1 (en) * 2021-04-19 2022-11-14 장종복 safety opening and shutting apparatus of manhole cover

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KR200294242Y1 (en) * 2002-08-22 2002-11-04 남선오 Door hinge apparatus with automatic door closing spring
CN201148799Y (en) * 2008-01-05 2008-11-12 刘郁 Multifunctional spring hinge
KR20100076482A (en) * 2008-12-26 2010-07-06 동우정밀(주) Auto closing hinge
US20110041285A1 (en) * 2008-04-01 2011-02-24 Chan Ho Hong Separated type hinge apparatus with return function
CN202249389U (en) * 2011-08-31 2012-05-30 中山市莎丽卫浴设备有限公司 Automatically reset hinge

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KR100560682B1 (en) * 2003-06-19 2006-03-16 삼성전자주식회사 Storage case
KR100766133B1 (en) 2006-03-13 2007-10-17 (주)힌지코리아 Hinge device in the electric pressure rice cooker

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Publication number Priority date Publication date Assignee Title
KR200294242Y1 (en) * 2002-08-22 2002-11-04 남선오 Door hinge apparatus with automatic door closing spring
CN201148799Y (en) * 2008-01-05 2008-11-12 刘郁 Multifunctional spring hinge
US20110041285A1 (en) * 2008-04-01 2011-02-24 Chan Ho Hong Separated type hinge apparatus with return function
KR20100076482A (en) * 2008-12-26 2010-07-06 동우정밀(주) Auto closing hinge
CN202249389U (en) * 2011-08-31 2012-05-30 中山市莎丽卫浴设备有限公司 Automatically reset hinge

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