KR101795856B1 - Buffer for hinge of furnitures - Google Patents

Buffer for hinge of furnitures Download PDF

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Publication number
KR101795856B1
KR101795856B1 KR1020150108941A KR20150108941A KR101795856B1 KR 101795856 B1 KR101795856 B1 KR 101795856B1 KR 1020150108941 A KR1020150108941 A KR 1020150108941A KR 20150108941 A KR20150108941 A KR 20150108941A KR 101795856 B1 KR101795856 B1 KR 101795856B1
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KR
South Korea
Prior art keywords
rod
press ring
cylinder
buffer
pressure space
Prior art date
Application number
KR1020150108941A
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Korean (ko)
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KR20170014908A (en
Inventor
이정연
Original Assignee
주식회사 우신에스에스디
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Priority to KR1020150108941A priority Critical patent/KR101795856B1/en
Publication of KR20170014908A publication Critical patent/KR20170014908A/en
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Publication of KR101795856B1 publication Critical patent/KR101795856B1/en

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    • 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
    • E05D11/08—Friction devices between relatively-movable hinge parts
    • E05D11/082—Friction devices between relatively-movable hinge parts with substantially radial friction, e.g. cylindrical friction surfaces
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins
    • E05D5/14—Construction of sockets or sleeves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2220/00—General furniture construction, e.g. fittings
    • A47B2220/0061—Accessories
    • A47B2220/0069—Hinges
    • A47B2220/0072—Hinges for furniture
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/21—Brakes
    • E05Y2201/212—Buffers

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

Abstract

The present invention is configured such that a restoring spring for restoring a press ring having a piston action can provide a restoring force from the outside of the cylinder, so that the structure is simple and can be easily manufactured, It is an object of the present invention to provide a buffer for a furniture hinge which can be secured by a working distance and which can increase the effective working distance of the buffer.
Further, in the present invention, an auxiliary flow path is provided between the press ring and the rod, in addition to the main flow path between the press ring and the inner surface of the cylinder, so that the press ring can stably move and the rod can naturally and smoothly expand and contract Another object is to provide a buffer for a furniture hinge that can be made durable with noise prevention.
Further, according to the present invention, the working distance of the rod can be varied by moving the rod chamber and the rod chamber base, which airtight between the cylinder and the rod, in the longitudinal direction of the cylinder, thereby further improving the effect of preventing leakage of the working fluid. The buffer for the furniture hinge which makes it possible to easily construct the entire structure so that it can be easily maintained without failures but can increase the working distance of the load as much as possible There is another purpose in providing.

Description

[0001] BUFFER FOR HINGE OF FURNITURES [0002]

The present invention relates to a buffer for a furniture hinge, and more particularly to a buffer for a furniture hinge, wherein a restoring spring for returning the press ring to its original position can provide restoring force outside the cylinder, So that the working distance of the rod can be extended.

Generally, the furniture is equipped with a sliding or hinged door. In particular, the hinged door is rotatably mounted using a hinge, and the hinge is equipped with a resilient return means such that the door can be easily closed. This is advantageous in that the door can be easily closed, but conversely, the door may be closed with a sudden rotation to cause noise.

Therefore, the hinge is equipped with a shock absorber (buffer) so as to prevent the doors from being suddenly closed and smoothly closed, thereby preventing noise from occurring and preventing door failures. Patent Documents 1 to 3 disclose a hinge having such damping means.

Patent Document 1 relates to a shock absorber, which comprises a damping housing, a fluid chamber disposed in the buffer housing and movably supported inside the piston, a fluid chamber connected to the piston and sealing the fluid chamber with the buffer housing, At least one seal for positioning the seal and a ram penetrating through the seal and a fluid-conducting relationship with the fluid chamber and extending laterally parallel to the fluid chamber, And a compensating chamber in which at least one variable compensating body for compensating for a change in volume caused by the ram entering the side of the compensating chamber is disposed.

Patent Document 2 discloses a hinge mechanism comprising a hinge arm having a longitudinal axis, a hinge cup connected to the hinge arm and rotatably supported between the closed position and the open position, and a linear damping stroke for damping the movement of the furniture hinge To a furniture hinge that can be placed in an installed position within a through hole of a furniture portion. ≪ RTI ID = 0.0 > [0002] < / RTI >

Patent Document 3 proposes a decelerating hinge for a furniture door, particularly a furniture part having a face frame for fixing, having a decelerating device adapted to be associated with closing means positioned centrally in the hinge box have. It is also an object of the present invention to provide a hinge of the kind considered to be able to perform an effective deceleration action along a particularly wide swinging arc of the hinge. It is also an object of the present invention to provide a hinge of the kind considered, in which the decelerating device has a simple structure and can be easily assembled together.

These existing buffers are configured as follows. The normal buffer is provided in such a manner that the press ring 2 which acts as a piston in the cylinder 1 filled with working fluid is connected to one end of the rod 3 and moves in the longitudinal direction of the cylinder 1 . At this time, when the cylinder (1) presses one end (downward in the drawing) of the rod (3) as the door (not shown) of the furniture is closed, the rod (3) A restoring spring 4 is provided so as to be able to be restored. The sponge 5 is attached to the cylinder 1 at the inlet side where the rod 3 protrudes outward and the pressure ring 2 is moved in accordance with a change in the pressure of the working fluid as the press ring 2 moves in the cylinder 1 And is configured to generate a frictional force through expansion and contraction.

Such existing furniture buffers have the following problems.

(1) Since the restoring spring is mounted in the cylinder, the length in which the actual buffer can be operated, that is, the working distance of the rod is shortened. This is because when the rod 3 is contracted as shown in Fig. 1 (a), since the restoring spring 4 also has the compressed length W1 of the minimum length, the working distance is equal to the length W1 Is shortened.

The conventional buffer mounts the sponge 5 in order to prevent the abrupt operation of the rod 3 due to the occurrence of airtightness and friction in the cylinder 1 and the sponge 5 is also attached to the cylinder [ (A) and (b) of Fig. 1, regardless of the elongation and contraction of the rod 3, a predetermined length W2 is maintained. Therefore, the working distance of the rod 3 becomes shorter by this length W2.

(3) The length of the buffer should be increased so that the end of the buffer mounted on the hinge (the end of the rod) can be brought into contact with the furniture door according to the shorter working distance of the rod (sum of W1 + W2).

(4) In order to obtain the same working distance, the length of the conventional buffer must be increased, which requires more manufacturing cost.

(5) In particular, when the furniture hinge is installed in a limited space as the length becomes longer, interference may occur with the hinge, the buffer, the buffer, and the door of the furniture.

(6) In order to compensate for the shortening of the working distance, the length of the rod and cylinder must be made longer or other components must be added to compensate for the increase in the number of components.

(7) As the number of components increases, a manufacturing cost is increased and there is a concern that a failure occurs, which makes maintenance difficult.

Korean Patent Laid-Open No. 10-2014-0066995 (Publication date: 2014.06.03) Korean Patent Laid-Open No. 10-2014-0114369 (Publication date: 2014.09.26) Korean Patent Publication No. 10-2015-0029604 (Publication date: 2015.03.18)

The present invention has been made in view of this point, and a restoring spring for restoring a press ring that acts as a piston can provide a restoring force from the outside of the cylinder, so that the structure can be easily manufactured, It is an object of the present invention to provide a buffer for a furniture hinge which can secure a working distance of the load as much as the space occupied when compressed, thereby increasing the effective working distance of the buffer.

Further, in the present invention, an auxiliary flow path is provided between the press ring and the rod, in addition to the main flow path between the press ring and the inner surface of the cylinder, so that the press ring can stably move and the rod can naturally and smoothly expand and contract Another object is to provide a buffer for a furniture hinge that can be made durable with noise prevention.

Further, according to the present invention, the working distance of the rod can be varied by moving the rod chamber and the rod chamber base, which airtight between the cylinder and the rod, in the longitudinal direction of the cylinder, thereby further improving the effect of preventing leakage of the working fluid. The buffer for the furniture hinge which makes it possible to easily construct the entire structure so that it can be easily maintained without failures but can increase the working distance of the load as much as possible There is another purpose in providing.

According to an aspect of the present invention, there is provided a furniture hinge buffer comprising: a press ring having a container shape and being expanded and contracted according to a pressure therein; A first pressure space 210 formed to be slightly larger than the press ring 100 and allowing a working fluid to flow as the press ring 100 moves in a gap therebetween, A cylinder 200 having a first pressure space 210 and a second pressure space 220 connected to each other on a center line of the first pressure space 210; A rod chamber 300a and a rod chamber base 300b which are sequentially fitted in the second pressure space 220 and move in the longitudinal direction to prevent leakage of the working fluid; One end of the stopper 410 is fixed to the press ring 100 and the other end of the stopper 410 protrudes out of the cylinder 200 through the rod seal 300a and the rod seal base 300b. A loaded rod 400; And a restoring spring 500 that is inserted between the stopper 410 and the rod 400 protruding out of the cylinder 200 to be elastically supported.

The press ring 100 further includes a base 110 having one end fixed to the rod 400 and the other end fitted to the press ring 100. The base 110 includes a press ring 100, And the auxiliary fluid passage 111 is formed to allow the working fluid to flow through the fitting portion.

Lastly, the first pressure space 210 is formed to have a diameter smaller than the diameter of the second pressure space 220.

The buffer for a furniture hinge according to the present invention has the following effects.

(1) Since the restoring spring provides the restoring force of the rod outside the cylinder, it can extend the working length by the length of the restoring spring when compressed in the cylinder.

(2) In addition, since the construction of the sponge for generating airtightness and frictional force can be omitted, the structure can be simplified and the number of parts can be reduced, which can be expected to reduce manufacturing cost.

(3) In particular, since the working length of the rod can be increased by the length of the compression spring of the restoring spring and the configuration of the sponge, the working length can be extended by about 40% compared with the conventional buffer When the distance is 17 cm, the present invention is a working distance of about 30 cm).

(4) Since the rod chamber and the rod chamber base, which prevent leakage between the rod and the cylinder, are configured to be movable in the rod longitudinal direction, the working space can be expanded and contracted, So that the working length of the rod can be further extended.

(5) When the buffer is mounted on the hinge with the extension of the operating length as described above, the buffering effect can be maximized by increasing the length of the buffering action even when the door of the furniture is opened and closed. Even if the weight of the door is heavy or the closing speed is fast, Since the operation length of the door is long, it is possible not only to increase the buffering effect but also to prevent the noise or breakage caused by the door not touching the rod, so that the effect of increasing the quality can also be expected.

FIG. 1 is a sectional view showing one example of a conventional furniture buffer. FIG.
FIG. 2 is a perspective view of the furniture buffer according to the first embodiment of the present invention, showing the entire configuration thereof. FIG.
FIG. 3 is a perspective view of a cylinder treated with a silver wire to show the state of the furniture buffer according to the first embodiment of the present invention. FIG.
FIG. 4 is a sectional view showing the entire state of the furniture buffer according to the first embodiment of the present invention. FIG.
5 is a sectional view showing the shape of a cylinder according to Embodiment 1 of the present invention.
FIG. 6 is a perspective view showing an overall shape of a base according to a second embodiment of the present invention; FIG.
7 is a cross-sectional view illustrating a combined state of a base and a press ring according to a second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should properly define the concept of the term to describe its invention in the best possible way The present invention should be construed in accordance with the spirit and scope of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Thus, various equivalents And variations may be present.

The furniture hinge buffer according to the first embodiment of the present invention includes the press ring 100, the cylinder 200, the rod chamber 300a and the rod seal base 300b, the rod 400, and the restoring spring 500 .

Particularly, in the present invention, the restoring spring 500 can be elastically supported outside the cylinder 200, so that the operation length of the rod 400 can be increased with respect to the cylinder 200 having the same length.

The present invention is also applicable to a structure in which the rod chamber 300a and the rod seal base 300b for preventing the leakage of the working fluid between the cylinder 200 and the rod 400 can be moved in the longitudinal direction of the cylinder 200 As the rod 400 is compressed, the restoring spring 500 is compressed and utilized as a space that can accommodate the restoring spring 500. In addition, by adjusting the size of the compression space as the rod 400 is expanded and contracted, So that the operating length of the motor 400 can be extended.

Hereinafter, this configuration will be described in more detail.

The press ring 100 is a kind of piston which is fitted in a cylinder 200 to be described later and moves in the longitudinal direction thereof as shown in Figs.

Particularly, as shown in FIG. 7 (b), the press ring 100 is manufactured to have a size slightly smaller than the cylinder 200, and the working fluid filled in the cylinder 200 through the gap G therebetween It is preferable to form the main flow path that can flow on both sides with reference to the press ring 100.

The press ring 100 may be manufactured in various shapes, but it is preferable to manufacture the press ring 100 in a container shape having a predetermined diameter. This is to reduce the weight of the entire press ring 100 and to appropriately limit the flow amount of the working fluid flowing to both sides of the portion corresponding to the outer periphery of the container.

Accordingly, the press ring 100 expands when an external pressure is generated due to mutual action (variable) with an external pressure, thereby blocking the main flow path and generating a variable pressure according to an external pressure to perform a buffering action.

Further, the press ring 100 is fitted with a rod 400 to be described later so as to move together. The base 110 having a predetermined size is fixed to the rod 400 by a method such as forcing or screw tightening and the press ring 100 is inserted into the base 110 to easily assemble the base 110, It is preferable to be configured to be replaceable.

The cylinder 200 provides a space in which the above-described press ring 100 can move in the longitudinal direction, as shown in Figs. 2 to 5. In this space, a working fluid used in a buffer is typically filled, and a buffering action is performed according to the amount of the working fluid flowing toward both sides with respect to the press ring 100.

Particularly, the cylinder 20 is provided with a first pressure space 210 in which the press ring 100 moves in the longitudinal direction and a second pressure space 210 in which the rod chamber 300a and the rod seal base 300b, A pressure space 220 is formed.

The first pressure space 210 and the second pressure space 220 are located on one center line so that the press ring 100 and the load chamber 300a and the rod seal base 300b are separated from each other. Allows movement along the centerline.

Also, in a preferred embodiment of the present invention, it is preferable that the first pressure space 210 and the second pressure space 220 are formed to have different sizes, for example, different diameters. In the drawing, the second pressure space 220 is formed to have a larger inside diameter than the first pressure space 210. Of course, conversely, the first pressure space 210 may be formed with a larger diameter.

In the drawing, a reference numeral 230 denotes a ball that blocks a hole formed in one side of the cylinder 200, that is, the opposite side of the rod 400 protruding outward so as to inject working fluid or the like, And a closing member for closing the opposite side of the cylinder 200, respectively.

The rod chamber 300a and the rod chamber base 300b support the rod 400 as the rod 400 moves in the longitudinal direction as shown in FIGS. 2 to 4, To prevent the working fluid from leaking.

Particularly, the seal 300a and the rod seal base 300b are installed in the second pressure space 220 in addition to the sealing function, and can prevent the leakage of the working fluid by moving along the longitudinal direction of the space. Respectively.

When the rod 400 is retracted into the cylinder 200 as shown in Fig. 4 (a), the rod chamber 300a and the rod seal base 300b are compressed in the above-described second pressure space 220 A storage space for the restoring spring 500 is provided. When the rod 400 is pulled out of the cylinder 200 as shown in FIG. 4 (b), the load chamber 300a and the rod seal base 300b are moved in the second pressure space 220, Thereby restricting the working distance of the rod 400. As shown in FIG.

Thus, the rod chamber 300a and the rod chamber base 300b change the space according to the movement in the second pressure space 220, which changes the internal pressure and helps the rod to operate smoothly and stably.

The rod 400 is a kind of shaft having a predetermined length as shown in Figs. 2 to 4, and the rod 400 is moved in the longitudinal direction of the press ring 100 in the first pressure space 210 And are mounted to move together.

To this end, one end of the rod 400 is inserted into the cylinder 200 through the rod chamber 300a and the rod chamber base 300b, and the press ring 100 in the first pressure space 220 . At this time, the rod 400 may be directly coupled with the press ring 100, but it is preferable that the rod 400 is coupled through the base 110 described above.

The other end of the rod 400 protrudes outward from the cylinder 200. The stopper 410 is provided at the protruding end.

The restoring spring 500 provides restoring force such that the rod 400 described above is pushed out of the cylinder 200 as shown in Figs. The restoring spring 500 may be manufactured in various forms, but it is preferable that the restoring spring 500 is formed in a coil spring shape and can be used by being inserted into the rod 400.

The restoring spring 500 is fitted to the rod 400 so that both ends of the restoring spring 500 abut on the rod seal base 300b and the stopper 410 as shown in Figs. 2 to 4, respectively.

According to the present invention as described above, since the restoring spring is mounted outside the cylinder, the working distance of the rod can be increased, and the unnecessary configuration can be eliminated, so that the working distance of the rod can be further increased, .

The furniture hinge buffer according to the second embodiment of the present invention has the auxiliary flow path 111 formed in the base 110 'as compared to the first embodiment, as shown in Figs. 6 and 7, 400 can be smoothly and smoothly operated. Therefore, the same reference numerals are assigned to the same components as those in the first embodiment, and a detailed description thereof will be omitted, and only the base 110 'will be described.

Embodiment 2 is a modification of the shape of the base 110 'in which one end of the rod 400 is fitted to the press ring 100 in a state where it is mounted on one end of the rod 400 as shown in Figs. 6 and 7 . At this time, the auxiliary flow path 111 is formed on the outer peripheral surface of the portion of the base 110 'to be fitted to the press ring 100, so that the base 110' so that a flow path can be formed between the base 110 'and the press ring 100 through the auxiliary flow path 111 as shown in FIG.

At this time, it is easy for a person skilled in the art to easily understand that the size of the auxiliary flow path 111 is determined by the flow rate passing through the auxiliary flow path 111, and that the rod 400 can operate suddenly or slowly according to the flow rate.

100: Press ring
110: Base
111: auxiliary flow path
200: Cylinder
210: first pressure space
220: second pressure space
300a: Rod seal
300b: Rod seal base
400: Load
410: Stopper
500: restoring spring

Claims (3)

A press ring 100 formed in a container shape and expanded or contracted according to a pressure inside thereof;
A first pressure space 210 formed to be slightly larger than the press ring 100 and allowing a working fluid to flow as the press ring 100 moves in a gap therebetween, A cylinder 200 having a first pressure space 210 and a second pressure space 220 connected to each other on a center line of the first pressure space 210; A rod chamber 300a and a rod chamber base 300b which are sequentially fitted in the second pressure space 220 and move in the longitudinal direction to prevent leakage of the working fluid; One end of the stopper 410 is fixed to the press ring 100 and the other end of the stopper 410 protrudes out of the cylinder 200 through the rod seal 300a and the rod seal base 300b. A loaded rod 400; And a restoring spring (500) which is inserted between the stopper (410) and the rod (400) protruding out of the cylinder (200) to be elastically supported,
The press ring 100 further includes a base 110 having one end fixed to the rod 400 and the other end fitted to the press ring 100,
The base 110 forms an auxiliary flow path 111 through which the working fluid can pass through the fitting portion with the press ring 100,
Wherein the first pressure space (210) is smaller in diameter than the second pressure space (220). delete delete
KR1020150108941A 2015-07-31 2015-07-31 Buffer for hinge of furnitures KR101795856B1 (en)

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KR1020150108941A KR101795856B1 (en) 2015-07-31 2015-07-31 Buffer for hinge of furnitures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150108941A KR101795856B1 (en) 2015-07-31 2015-07-31 Buffer for hinge of furnitures

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KR20170014908A KR20170014908A (en) 2017-02-08
KR101795856B1 true KR101795856B1 (en) 2017-11-09

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102048640B1 (en) * 2018-09-05 2019-11-25 양형수 Assembly for adjusting gap between sliding frame and sliding door

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012149696A (en) * 2011-01-19 2012-08-09 Fuji Latex Kk Liquid damper device
KR101408768B1 (en) * 2014-03-12 2014-06-18 삼성정밀공업 주식회사 Hinge damper for absorbing the door impact having pressure adjustment mean

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511847B1 (en) 2011-08-31 2013-03-15 Blum Gmbh Julius DAMPING DEVICE FOR MOVABLE FURNITURE PARTS
AT15271U1 (en) 2012-02-16 2017-04-15 Blum Gmbh Julius hinge
ITMI20121122A1 (en) 2012-06-26 2013-12-27 Salice Arturo Spa DECELERATED HINGE FOR FURNITURE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012149696A (en) * 2011-01-19 2012-08-09 Fuji Latex Kk Liquid damper device
KR101408768B1 (en) * 2014-03-12 2014-06-18 삼성정밀공업 주식회사 Hinge damper for absorbing the door impact having pressure adjustment mean

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