KR101552218B1 - Door Hinge Adjustable Opening Angle - Google Patents

Door Hinge Adjustable Opening Angle Download PDF

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Publication number
KR101552218B1
KR101552218B1 KR1020150077828A KR20150077828A KR101552218B1 KR 101552218 B1 KR101552218 B1 KR 101552218B1 KR 1020150077828 A KR1020150077828 A KR 1020150077828A KR 20150077828 A KR20150077828 A KR 20150077828A KR 101552218 B1 KR101552218 B1 KR 101552218B1
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KR
South Korea
Prior art keywords
rod
door
cam
piston
lowered
Prior art date
Application number
KR1020150077828A
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Korean (ko)
Inventor
신호철
Original Assignee
부성정밀(주)
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Publication date
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Priority to KR1020150077828A priority Critical patent/KR101552218B1/en
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Publication of KR101552218B1 publication Critical patent/KR101552218B1/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
    • E05D11/10—Devices for preventing movement between relatively-movable hinge parts
    • E05D11/1014—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in only one position, e.g. closed
    • 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
    • E05D11/06—Devices for limiting the opening movement of hinges
    • 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
    • E05Y2201/224—Stops

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

Abstract

A hinge for a door capable of adjusting the opening angle of the present invention comprises a door hinge plate (10) fixed to a door; A lower cam 20 coupled to the door hinge plate 10 so as to be rotated and turned into a cylindrical shape, the upper and lower cams being vertically penetrated; An upper cam 30 positioned at an upper portion of the lower cam 20 and in contact with the lower cam 20 and raised and lowered by the lower cam 20 when the door is rotated; An upper rod 40 coupled to the upper cam 30 and extending downwardly through the lower cam 20 and interlocked with the upward and downward movement of the upper cam 30; A first piston (50) coupled to an upper portion of the upper rod (40) and raised and lowered; The upper rod 40 connected to the first piston 50 is raised and lowered at a constant pressure by maintaining a constant pressure on the first piston 50 by raising and lowering the first piston 50, A gas cylinder (60) for maintaining the opening angle of the rotated door when stopped; A cylindrical body 70 for receiving the lower cam 20, the upper cam 30, the upper rod 40, the first piston 50 and the gas cylinder 60; A door frame hinge plate 80 fixed to the cylindrical body 70 and fixed to the door frame; .

Description

Door Hinge Adjustable Opening Angle "

The present invention relates to a door hinge capable of maintaining an open state at an arbitrary angle and capable of adjusting the opening angle so as to allow the door to be slowly closed.

Generally, the hinge for the door hinges the door and the door frame to open and close the door.

Conventional door hinges do not have a damper function for slowly closing the door or a function for completely closing the door. Therefore, when the door suddenly closes, noise is generated, and if a finger is caught between the door openings, a safety accident occurs.

Further, the conventional door hinge has no function for adjusting the opening angle of the door. Accordingly, in order to adjust the opening angle of the door, a stopper attached to the chair or the door is provided to adjust the opening angle of the door. However, there is a problem that such a hanging door damages the door, and the stopper attached to the door has a problem that the durability is weak and it is easily damaged.

Accordingly, there is a demand for development of a hinge for a door that allows a door to be kept open at an arbitrary angle, and to slowly close the door.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hinge for a door which is adjustable in opening angle so that the door can be kept open at an arbitrary angle.

It is another object of the present invention to provide a hinge for a door which is adjustable in opening angle to allow a door to be slowly closed.

In order to accomplish the above object, the door hinge according to the present invention, which is adjustable in opening angle, comprises a door hinge plate 10 fixed to a door; A lower cam 20 coupled to the door hinge plate 10 so as to be rotated and turned into a cylindrical shape, the upper and lower cams being vertically penetrated; An upper cam 30 positioned at an upper portion of the lower cam 20 and in contact with the lower cam 20 and raised and lowered by the lower cam 20 when the door is rotated; An upper rod 40 coupled to the upper cam 30 and extending downwardly through the lower cam 20 and interlocked with the upward and downward movement of the upper cam 30; A first piston (50) coupled to an upper portion of the upper rod (40) and raised and lowered; The upper rod 40 connected to the first piston 50 is raised and lowered at a constant pressure by maintaining a constant pressure on the first piston 50 by raising and lowering the first piston 50, A gas cylinder (60) for maintaining the opening angle of the rotated door when stopped; A cylindrical body 70 for receiving the lower cam 20, the upper cam 30, the upper rod 40, the first piston 50 and the gas cylinder 60; A door frame hinge plate 80 fixed to the cylindrical body 70 and fixed to the door frame; And a control unit.

A lower rod 90 coupled with the upper rod 40 to be engaged therewith; A second piston 100 coupled to a lower portion of the lower rod 90 and interlocked with the lower rod 90 when the lower rod 90 descends; A predetermined pressure is applied to the second piston 100 when the second piston 100 is lowered to lower the lower force of the upper rod 40 when the lower rod 90 is lowered by the lowering of the upper rod 40 An oil cylinder 110 for descending to descend; And further comprising:

The upper rod 40 and the lower rod 90 are connected to each other by a pair of elongated holes 91. The upper rod 40 and the lower rod 90 are connected to each other through a through- The upper rod 40 is lowered at an opening angle of 15 to 20 degrees before the door is closed to the door frame so that the upper rod 40 can be slidably moved in the long hole 91 when the upper rod 40 is lowered, And a fixing pin 120 interlocked with the lower rod 90 at a predetermined time.

In addition, an adjust valve 130 is provided at a lower end of the oil cylinder 110 to adjust the pressure of the oil cylinder 110.

The upper cam 30 may further include a snap ring 140 for raising the upper rod 40 when the upper cam 30 is lifted.

The door hinge according to the present invention can adjust the opening angle of the door according to the present invention. The door hinge is provided with a door damper function so that the door is automatically closed slowly to reduce noise, It is possible to prevent the occurrence of a safety accident in advance.

Further, since the door can be kept open at an arbitrary angle, it is not necessary to provide a stick or a stopper.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a door hinge according to an embodiment of the present invention;
2 to 3 are sectional views showing an operating state of a hinge for a door which can adjust the opening angle of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a door hinge capable of adjusting the opening angle of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing a door hinge capable of adjusting the opening angle of the present invention, and FIGS. 2 and 3 are sectional views showing an operating state of a door hinge according to the present invention.

A door hinge (100) capable of adjusting the opening angle according to the present invention comprises a door hinge plate (10); A lower cam (20); An upper cam 30; An upper rod 40; A first piston (50); A gas cylinder 60; A cylindrical body 70; A door frame hinge plate 80; .

The door hinge plate 10 is in the form of a plate and is fixed to the door by screws, rivets or the like.

The lower cam 20, the upper cam 30, the upper rod 40, the first piston 50, and the gas cylinder 60 are accommodated in the cylindrical body 70.

The lower cam (20) is coupled with the door hinge plate (10) to be rotated and turned into a cylindrical shape, and is vertically penetrated.

A protrusion (not shown) is formed to allow the door hinge plate 10 and the lower cam 20 to be engaged with each other and a fitting portion (not shown) is formed on the lower cam 20 so that the protrusion can be fitted . In addition, the cylindrical body 70 is formed with a groove (not shown) in the circumferential direction so that the projection can be rotated without interference when the door is rotated. The lower cam 20 is a cylindrical cam which is raised and lowered by a nose portion.

The upper cam 30 is located at an upper portion of the lower cam 20 and is in contact with the lower cam 20 so as to be raised and lowered by the lower cam 20 when the door is rotated. The upper cam 30 is also known as a cylindrical cam which is raised and lowered by the nose portion.

The upper rod 40 is engaged with the upper cam 30 and extends downwardly through the lower cam 20 and interlocked with the upward movement of the upper cam 30.

The first piston (50) is coupled to the upper portion of the upper rod (40) and ascended and descended.

When the lower cam 20 is rotated by the rotation of the door, the upper cam 30 is raised and lowered by the lower cam 20 and the upper rod 40 coupled with the upper cam 30 And the first piston 50 coupled to the upper portion of the upper rod 40 is moved up and down.

The gas cylinder 60 maintains a predetermined pressure on the first piston 50 by moving up and down the first piston 50 so that the upper rod 40 connected to the first piston 50 is maintained at a constant pressure So that the opening angle of the door rotated when the door stops rotating is maintained. It is known that the gas cylinder 60 keeps a constant pressure on the piston to ascend and descend.

The door frame hinge plate 80 is fixed to the cylindrical body 70 and fixed to the door frame. Like the door hinge plate 80, the door hinge plate 80 has a plate shape and is fixed to the door by screws, rivets, or the like.

In the door hinge according to the present invention having the above-described structure, the door is opened and closed by the following operation.

When the user rotates and opens the door in the initial state (see FIG. 2A) in which the door is closed, the lower cam 20 is rotated in conjunction with the door hinge plate 10. When the lower cam 20 is rotated, the upper cam 30 contacting the upper portion of the lower cam 20 is lifted. When the upper cam 30 is lifted up, the upper rod 40 connected to the upper cam 30 is lifted and the first piston 50 coupled to the upper end of the upper rod 40 is raised ), (c), (d)). At this time, since the first piston 50 is operated by a certain pressure by the gas cylinder 60, the upper rod 40 is raised to a certain pressure.

When the user rotates the door by rotating the door at an arbitrary angle, the first piston 50 is stopped by the gas cylinder 60 and the upper rod 40 connected to the first piston 50 is also stopped, The angle of opening of the valve body is maintained.

When the user closes the door in this state, the lower cam 20 is rotated by interlocking with the door hinge plate 10. At this time, the first piston 50 is pressed by the gas cylinder 60 at a constant pressure The first piston 50 is lowered. 3 (b), (c), and (d) of FIG. 3), when the upper rod 40 is lowered, the upper rod 40 is lowered The upper cam 30 coupled with the rod 40 is lowered while being in contact with the lower cam 20 and the door is closed.

In addition, the door hinge of the present invention, which is capable of adjusting the opening angle, adds a door damper function to the door hinge when the door is closed so that the door automatically closes slowly. To this end, the configuration of the lower rod 90, the second piston 100, and the oil cylinder 110 is further adopted.

The lower rod (90) is engaged with the upper rod (40).

The second piston 100 is coupled to a lower portion of the lower rod 90 and moves down when the lower rod 90 is lowered.

The oil cylinder 110 applies a predetermined pressure to the second piston 100 when the second piston 100 is lowered and when the lower rod 90 is lowered due to the lowering of the upper rod 40, So that the lower force of the piston 40 is attenuated and lowered.

As described above, the door is automatically closed slowly by adding a function of a door damper to lower the lower load of the upper rod 40 when the upper rod 40 descends.

In addition, it is preferable that the door hinge for adjusting the opening angle of the present invention allows the door damper function to operate at an angle of opening of 15 to 20 degrees before closing the door to the door frame.

The upper rod 40 and the lower rod 90 are connected to each other by a bolt 90. The upper rod 40 and the lower rod 90 are connected to each other by a bolt, The upper rod 40 can be slidably moved in the elongated hole 91 when the upper rod 40 is lowered, and the upper rod 40 can be slidably moved at an angle of 15 to 20 degrees, And a fixing pin 120 for interlocking with the lower rod 90 when it is lowered.

The fixing pin 120 that engages the upper rod 40 and the lower rod 90 is slid up and down in the elongated hole 91. In the elongated hole 91 of the fixing pin 120, The open or closed state of the door is as follows.

2 (a) is in a closed state, that is, in an initial state, the fixing pin 120 is in contact with the lower end of the long hole 91.

When the door is opened at an acute angle in this state, the upper rod (40) coupled with the lower cam (20) is raised by the upper cam (30) and when the upper rod 120 are located at the intermediate position in the elongated hole 91 and only the upper rod 40 is lifted (see FIG. 2 (b)).

When the door is further opened in this state, the upper rod 40 is raised so that the fixing pin 120 is positioned at the upper end of the elongated hole 91 (see FIG. 2 (c)). This state is a state immediately before the upper rod 40 and the lower rod 90 coupled by the fixing pin 120 are lifted.

When the door is further opened in this state, the fixing pin 120 pulls up the lower rod 90 and moves the second piston 100 coupled with the lower rod 90 upward (FIG. 2 (see Fig.

In this state, when the door is completely opened at an angle of 90 degrees, the fixing pin 120 pulls up the lower rod 90 to move the second piston 100 coupled with the lower rod 90 to the top dead center When the lower rod 90 is raised, the second piston 100 coupled to the lower rod 90 is lifted to the top dead center (see FIG. 2 (e)).

When the door is closed again in Figs. 2 (e) and 3 (a) in which the door is completely opened at an angle of 90 degrees, the door is closed by the upper cam 30, The rod 40 is lowered. At this time, the lower rod 90 is supported by the second piston 100 (see (b), (c) of FIG. 3). 3 (b), the lower rod 90 is supported by the second piston 100 as shown in FIG. 3 (a) in a state where the fixing pin 120 is moved to the lower portion of the long hole 91 And is not lowered. 3C, the lower rod 90 coupled with the upper rod 40 and the fixing pin 120 in a state in which the fixing pin 120 is moved to the lower end of the elongated hole 91, It is just before descending.

When the door is further closed in this state, when the door is opened to the door frame and the opening angle of the door is 15 to 20 degrees or less, the fixing pin 120 is moved to the lower end of the long hole 91 the fixed pin 120 pulls down the lower rod 90 and moves the second piston 100 coupled with the lower rod 90 downward (see FIG. 3 (c) Reference).

At this time, when the second piston 100 coupled with the lower rod 90 is moved downward, the oil cylinder 110 acts as a damper for attenuating the lower force of the upper rod 40.

When the door is completely closed, the fixing pin 120 pulls down the lower rod 90 to move the second piston 100 coupled with the lower rod 90 to the bottom dead center, And the initial state shown in Fig. 2 (a).

It is also preferable that an adjust valve 130 provided at the lower end of the oil cylinder 110 for adjusting the pressure of the oil cylinder 110 is further provided.

The adjust valve 130 adjusts the pressure of the oil cylinder 110 to control the opening and closing speed of the door.

In addition, it is preferable that a snap ring 140 is provided to allow the upper end of the upper cam 30 to be hooked when the upper cam 30 is lifted to raise the upper rod 40.

When the upper cam 30 is lifted by the snap ring 140, the upper portion of the upper cam 30 is hooked, so that the upper rod 40 is interlocked with the upper cam 30 to rise.

Reference numeral 21 denotes an exposure hole formed in the lower cam 20 for exposing the slot 91 and coupling the fixing pin 120 to the outside of the lower cam 20.

The technical idea should not be interpreted as being limited to the above-described embodiment of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, such modifications and changes are within the scope of protection of the present invention as long as it is obvious to those skilled in the art.

10: Door hinge plate 20: Lower cam
30: upper cam 40: upper rod
91: elongated hole 50: first piston
60: gas cylinder 70: cylindrical body
80: door frame hinge plate 90:
100: Second piston 110: Oil cylinder
120: Fixing pin 130: Easy valve
140: Snap ring

Claims (5)

delete A door hinge plate 10 fixed to the door;
A lower cam 20 coupled to the door hinge plate 10 so as to be rotated and turned into a cylindrical shape, the upper and lower cams being vertically penetrated;
An upper cam 30 positioned at an upper portion of the lower cam 20 and in contact with the lower cam 20 and raised and lowered by the lower cam 20 when the door is rotated;
An upper rod 40 coupled to the upper cam 30 and extending downwardly through the lower cam 20 and interlocked with the upward and downward movement of the upper cam 30;
A first piston (50) coupled to an upper portion of the upper rod (40) and raised and lowered;
The upper rod 40 connected to the first piston 50 is raised and lowered at a constant pressure by maintaining a constant pressure on the first piston 50 by raising and lowering the first piston 50, A gas cylinder (60) for maintaining the opening angle of the rotated door when stopped;
A cylindrical body 70 for receiving the lower cam 20, the upper cam 30, the upper rod 40, the first piston 50 and the gas cylinder 60;
A door frame hinge plate 80 fixed to the cylindrical body 70 and fixed to the door frame;
A lower rod (90) coupled with and engaged with the upper rod (40);
A second piston 100 coupled to a lower portion of the lower rod 90 and interlocked with the lower rod 90 when the lower rod 90 descends;
A predetermined pressure is applied to the second piston 100 when the second piston 100 is lowered to lower the lower force of the upper rod 40 when the lower rod 90 is lowered by the lowering of the upper rod 40 An oil cylinder 110 for descending to descend;
The hinge for a door according to claim 1, 3. The method of claim 2,
The lower rod (90) has a long hole (91) penetrating in a direction perpendicular to the axial direction of the lower rod (90) and extending vertically,
The upper rod 40 and the lower rod 90 are coupled to each other to allow the upper rod 40 and the lower rod 90 to slide in the elongated hole 91 when the upper rod 40 is lowered. Is coupled with the fixing pin (120) to be interlocked with the lower rod (90) when the upper rod (40) is lowered at an angle of 15 to 20 degrees. The method of claim 3,
And an adjust valve (130) provided at a lower end of the oil cylinder (110) to adjust a pressure of the oil cylinder (110). 5. The method of claim 4,
And a snap ring (140) for raising the upper rod (40) when the upper cam (30) is lifted by hanging the upper end of the upper cam (30) hinge.
KR1020150077828A 2015-06-02 2015-06-02 Door Hinge Adjustable Opening Angle KR101552218B1 (en)

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KR1020150077828A KR101552218B1 (en) 2015-06-02 2015-06-02 Door Hinge Adjustable Opening Angle

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Application Number Priority Date Filing Date Title
KR1020150077828A KR101552218B1 (en) 2015-06-02 2015-06-02 Door Hinge Adjustable Opening Angle

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102090737B1 (en) 2018-10-05 2020-03-18 김해복 Pivot assembly that can compensate for door gap
US20220235594A1 (en) * 2019-05-27 2022-07-28 Beyond Architectural Pty Ltd Hinge

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100311869B1 (en) * 1998-08-08 2001-12-17 김영호 Hinge for door
JP2003278431A (en) * 2002-03-07 2003-10-02 Fu Luong Hi-Tech Co Ltd Automatic closing door hinge

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100311869B1 (en) * 1998-08-08 2001-12-17 김영호 Hinge for door
JP2003278431A (en) * 2002-03-07 2003-10-02 Fu Luong Hi-Tech Co Ltd Automatic closing door hinge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102090737B1 (en) 2018-10-05 2020-03-18 김해복 Pivot assembly that can compensate for door gap
US20220235594A1 (en) * 2019-05-27 2022-07-28 Beyond Architectural Pty Ltd Hinge
US11939804B2 (en) * 2019-05-27 2024-03-26 Beyond Architectural Pty Ltd Hinge

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