KR20180034037A - a door hinge - Google Patents

Abstract

The present invention relates to a flap-type door hinge capable of adjusting a position and maintaining an angle of a door. The flap-type door hinge is provided to a cabinet flap door. Both sides thereof around a middle rotating shaft (O) are rotatable. A door control unit (10) at one side is fixed in a pair to the upper side of the inner space of a housing to adjust the position of the door by moving the door forward, backward, laterally, and longitudinally. A door spring buffering part (20) at the other side is fixed to a frame fixed to the edge end of a flap door to provide elastic buffering force when opening and closing the flap door. The present invention is installed on a longitudinal rotary flap door of a front open-type storage cabinet. Thus, opening is rapidly performed when the flap door is opened, and the door can be maintained in a closed state by controlling spring elastic force in a closing operation. Accordingly, a door can be easily opened and closed. In addition, when bending such as distortion or the like occurs while the flap door is used, a user can conveniently adjust an angle.

Description

A door hinge capable of adjusting the position of the door and maintaining the angle,

The present invention relates to a flap-type door hinge, and more particularly, to a flap-type door hinge which is capable of stably opening and closing a flap door of a front opening type storage cabin such as a sink by a spring force of gravity of a door together with spring elasticity, The present invention relates to a flap-type door hinge which can be conveniently calibrated so that the flap door can be easily opened and closed by the user, and the door can be adjusted in position and angle can be properly aligned.

Generally, in the case of a front open cabinet provided on a cabinet, especially on the upper side of a sink, a door is provided in a vertical hinge rather than on the right and left casings.

That is, when the door is installed in the open space of the cabinet, the upper end of the door is hinged to the upper fixed frame of the open space through a hinge or the like, and a handle is provided at the lower end of the door to lift the handle when the door is opened or closed.

In order to open and close the door, the door is rotated by one hand and the other hand is used to insert or withdraw the object. In order to solve this problem, a gas spring or the like is provided at a portion provided with a hinge to open So as to maintain the angle.

However, the gas spring is not only expensive but also has a problem in that the initial rotation of the door is difficult due to the pressure when the gas spring is used, and when the position of the door after rotation is located at the uppermost point, There is a problem. In addition, when the door is closed, the speed of the door is rapidly increased to cause an injury or a loud noise, and a shock is applied to the door connecting portion and the hinge fixing portion, thereby shortening the life of the door.

In order to solve such a problem, although a shock absorber is provided at a door closing portion, there has been a problem that additional cost is increased due to the installation of a shock absorber.

For example, Japanese Patent Application No. 10-1077656 discloses a hinge for opening and closing a flap door of a cabinet by the present inventor.

It is installed on the vertically pivoting door of the front open cabinet, so that it is opened rapidly through the spring tongue force when the door is opened, and the door can be kept closed by controlling the spring tongue force during the closing operation, .

In addition, the movement of the door is flexible when opening and closing the front open cabinet door without a gas spring or a shock absorber, and the operation is completed smoothly without shock to the cabinet when the door is completely opened and closed.

However, in the above case, when the door is repeatedly used repeatedly, the door is deformed. In this case, it is difficult to set the door to the initial state.

KR Patent Registration No. 10-1077656 Notification Date October 27, 2011 KR Patent Registration No. 10-1077655 Notice Date October 27, 2011

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

SUMMARY OF THE INVENTION [0006]

So that the flap door can be opened and closed stably and conveniently in the flap-type door hinge, and the position of the door can be easily and quickly calibrated.

According to an aspect of the present invention,

A door hinge provided on a cabinet flap door has both side portions rotatable with respect to an intermediate rotary shaft. One door adjustment portion is fixed to the upper side of the inner space of the cabinet by a pair to move the door forward and backward, left and right, And the door spring buffering portion of the other side is fixed to the frame fixed to the edge of the door to provide an elastic force when the door is opened and closed.

The door control unit includes:

And a screw hole is formed on the rear surface of the guide member. The screw hole is formed on the rear surface of the guide member. Left and right fixing members; A rotary shaft having a polygonal groove formed at one end of the rotary shaft so as to be fixed to the polygonal portion formed at one side of the rotary shaft and a guide groove formed at the rear end of the rotary shaft, A cover member having a screw hole at one side thereof; Wherein the cover member is screwed to the screw hole of the cover member and has a screw adjusting groove on one side and a guide of the left and right fixing member on the other side to adjust a distance of the cover member relative to the left and right fixing members, Wow; A front and rear adjusting member which is engaged with the guide groove formed at the rear of the cover member and whose threaded portion is screwed into the screw hole of the left and right fixing members so that the cover member can be moved back and forth with respect to the right and left fixing members; Can be applied.

The door spring buffer

A housing rotatably disposed in the housing and having a pair of guide pins protruded symmetrically at right angles to the rotation axis on an outer circumferential surface of one side of the housing, A guide groove or a guide is formed in a longitudinal direction on an outer circumferential surface so as to be movable along a guide or guide groove formed in the longitudinal direction on the inner circumferential surface of the housing and inserted into the housing in a cylindrical shape, A pressing cam having a cam surface having a pair of valleys and a floor formed on one end face of the rotating shaft in contact with the guide pin and moving linearly by the pressure of the guide pin rotating along the cam face when the rotating shaft rotates, One end is inserted into the housing so as to be in contact with the other end face of the pressure cam, The elastic force acting on the pressing cam is varied in accordance with the compressive force applied in the longitudinal direction by the linear movement of the pressure cam so that the elastic force is balanced with the magnetic gravity of the door which changes according to the rotational angle of the rotary shaft, A spring that elastically supports the rotary shaft at any position in the open section of the door to maintain the door in a stopped state and to induce a closed state of the door by an elastic force exceeding the magnetic gravity of the door when the door is closed, A first hinge member including a first hinge member and a second hinge member; And a hinge locking part is provided on one side of the receiving groove so that one end of the rotating shaft can be integrally fixed to the other side of the receiving groove. And a second hinge member.

The present invention relates to a door opening / closing device, which is installed on a vertically pivoting door of a front openable cabinet, opens rapidly through spring torsional force when the door is opened, and maintains the closed state of the door by controlling spring torsional force during closing operation. .

In addition, when the door is bent, when the door is bent, the angle of the door can be easily adjusted by the user.

Further, the present invention is advantageous in that the installation is simple, the cost is low, and the durability is greatly improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing an installation state of a flap-type door hinge capable of adjusting a position of a door and maintaining an angle according to the present invention;
Fig. 2 is an enlarged perspective view of Fig. 1,
Fig. 3 is an exploded perspective view of Fig. 1 and Fig. 2,
4 is a sectional view of the coupling state of Fig. 3,
Fig. 5 is a left side view coupling state of Fig. 4,
FIG. 6 is an exploded perspective view of the angle adjusting portion applied to FIGS. 1 to 5,
Fig. 7 is a use state diagram showing the left and right door adjustment states in Figs. 5 and 6,
FIG. 8 is a state diagram illustrating a state in which the door is vertically adjusted in FIGS. 5 and 6. FIG.
Fig. 9 is a use state diagram showing the state before and after the door adjustment in Figs. 5 and 6,
FIG. 10 is a view showing the door opening / closing operation in FIG. 4,
Fig. 11 is a view showing the door opening / closing operation in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention. .

The present invention relates to an opening and closing hinge (HL, HR) provided on a door (D) pivoting up and down in a front openable storage cabinet (U) And a door spring buffering unit 100 for providing a resilient restoring force to the door D and forming a door hinge for opening and closing the door D so as to be easily opened and closed, Is always aligned at the correct position so that it can be safely opened.

In other words, both side portions of the door hinge provided on the door of the cabinet are rotatable with respect to the center of rotation O, and one door adjusting portion 600 is disposed on the inner space upper side fixing frame T of the cabinet U, And the door spring buffering part 100 of the other side is moved to the frame F fixed to the edge of the door D so as to adjust the position of the door D by moving the door D in the forward and backward directions, So as to provide an elastic force when the door (D) is opened and closed.

In the storage unit U, a plurality of open spaces are formed so as to be opened forward. Hinges HL and HR for rotating the door D are provided on the upper side fixing frame T, So as to open and close the door D vertically. Of course, the hinges HL and HR may be installed at the center of the door D depending on the size and weight of the door D or various needs.

The door D is made of a plate-shaped material, and the frame F is coupled to one end of the body of the panel. That is, the door adjusting unit 600 is fixed to the fixed frame T between the frame F and the fixed frame T of the storage unit U, (100) is fixed to the frame (F).

The door regulating unit 600 includes a pair of fixing members 602 and 604 fixed to both sides of the ceiling of the fixing frame T of the storage unit U and includes a pair of right and left fixing members 610 A cover member 620 coupled to the left and right fixing members 610 and connected to the center of rotation O and coupled to the left and right fixing members 610 when coupled to the cover member 620, And a front and rear adjusting member 640 which is coupled to the cover member 620 and is coupled to the left and right fixing members 610 when the cover member 620 is adjusted.

The left and right fixing members 610 are respectively formed with elongated holes 612 in the width direction of the door D on both fixing pieces 602 and 604 so that a pair of fastening portions 612 are formed on both sides of the ceiling of the cabinet U, And a threaded hole 616 is formed in the rear surface. The screw hole 616 is formed on the rear surface of the screw hole 614.

The guide 614 is opened to the rear and is formed to have the same width so that the lower end of the vertical regulating member 630 is hooked and slid.

The threaded hole 616 is formed through the upper and lower portions and has a threaded surface formed on the inner peripheral surface thereof.

The cover member 620 has a polygonal groove 621 formed at one end thereof to be fixed to the polygonal portion 123 formed at the rotation axis 120 of the door spring buffer portion 100, A guide hole 623 is formed at the rear end of the guide groove 623 and a screw hole 624 is formed in one side of the upper surface of the guide groove 623, do.

The polygonal groove 621 is preferably a rectangular groove and is formed to pass through the rotary hole 622.

The upper and lower regulating member 630 has a screw 634 formed on its outer surface so as to be screwed to the screw hole 624 of the cover member 620 and has a screw adjusting groove 631 formed on one side thereof, A latching groove 632 is formed to engage with the guide 614 of the member 610 and the separation distance of the cover member 620 is adjusted with respect to the left and right fixing members 610 when the screws are adjusted.

The engaging groove 632 is slidably engaged with the guide 614 so as to be controlled by a latching force when vertically moving.

When the vertical adjustment member 630 is rotated in the tightening direction, the screws 634 of the vertical adjustment member 630 are screwed into the screw holes 624 of the cover member 620, So that the door D is moved up and down.

The front and rear adjusting member 640 is configured such that a head portion 641 is engaged with the guide groove 623 formed at the rear of the cover member 620 and a screw portion 642 is screwed into the screw hole 623 of the left and right fixing member 610, So that the cover member 620 can be moved back and forth with respect to the left and right fixing members 610.

7 to 9, the door adjusting unit 600 is fixed to the door 610 by fixing the position of the elongate hole 612 to the fastening member 680 coupled to the right and left adjusting member 610, And the upper and lower positions of the door D can be adjusted as the upper and lower adjusting members 630 are tightened and loosened. As the front and rear adjusting members 640 are tightened and loosened, It is possible to move the front and rear positions of the movable portion D in the forward and rearward directions.

3 and 4, the door spring buffering unit 100 includes a housing 110 coupled to the frame F and fixed to an end portion of the frame F to be integrally fixed to the housing F, A rotating shaft 120 rotatably disposed in the inner circumference of the first shaft 110 and having a pair of guide pins 121 protruding in a direction perpendicular to the axis of rotation and having a polygonal portion 123 at the other end, A guide groove or a guide 141 is formed on the outer circumferential surface of the housing 110 in the longitudinal direction so as to be movable along a guide or guide groove formed in the longitudinal direction on the inner circumferential surface of the housing 110, A cam surface 143 having a pair of troughs 145 and a floor 147 is formed on one end surface of the rotating shaft 120 which is in contact with the guide pin 121. When the rotating shaft 120 rotates, The cam surface 143, Is inserted into the housing 110 such that one end of the pushing cam 140 contacts the other end of the pushing cam 140 and the pushing cam 140 moves linearly by the pressure of the pin 121, The elastic force acting on the pressing cam 140 varies according to the compressive force applied in the longitudinal direction by the pressing force applied to the pressing shaft 140 in the longitudinal direction and the elastic force is balanced with the magnetic gravity of the door D varying with the rotational angle of the rotary shaft 120 , The rotary shaft 120 is elastically supported at any position in the open section of the door D when the door D is opened or closed to maintain the door D in a stopped state, And a spring 130 for guiding the closed state of the door D by an elastic force exceeding the magnetic gravity of the door D.

3 and 4, the door spring cushion 100 of the present invention includes a housing 110 made of an aluminum material having a pipe shape, a spring 130 embedded in the housing 110, A cam 140, a rotation shaft 120 and an auxiliary shaft 150, and separation prevention caps 160 and 170 covering both ends of the housing 110.

The housing 110 is symmetrically fitted on both sides of the frame F of the door D so as to be integrally fixed and the polygonal portion 123 formed at the end of the rotary shaft 120 from the frame F protrudes outward Lt; / RTI > The inner circumferential surface of the housing 110 is formed with a guide groove 111 for guiding the pressing cam 140 to the left and right and a thread line engaging with the release preventing caps 160 and 170.

The door spring buffering part 100 is provided with a protruding end on the end of the rotating shaft 120 in a direction orthogonal to the rotating shaft 120 so as to maintain the door D in a vertically- And the cam surface 143 is formed on one end surface of the pressing cam 140 so as to move left and right in accordance with the rotation of the rotating shaft 120 by contacting the guide pin 121. [

The cam surface 143 of the pressing cam 140 is a portion that is guided by the guide pin 121 of the rotary shaft 120 and rotates so that a compressive force corresponding to the rotational angle of the frame F of the door D A pair of troughs 145 and a floor 147 are provided on one end surface of the pressing cam 140 so that the guide pin 121 is slid along the cam surface 143 So that the spring 130 is variably compressed.

10 and 11, a pair of troughs 145 and a floor 147 are connected to each other to form an inclined surface (hereinafter referred to as a 'surface'). And forms a smooth surface to facilitate the smooth progression of the guide pin of the rotation shaft 120. [ In addition, a roller (not shown) may be further coupled to the guide pins 121 to minimize the frictional force of the guide pins 121 so that the sliding operation can be performed more smoothly.

The other end surface of the pressing cam 140 that contacts the spring 130 has a vertical cross section so that a compression force due to the rotation of the rotating shaft 120 can be well transmitted to the spring 130, So that the end of the contact spring 130 is aligned on the axis line of the rotation shaft 120. [

One end portion of the rotation shaft 120 formed with the guide pin 121 is partially inserted into the hollow portion of the pressing cam 140 so that the cam can be more stably maintained during rotation.

4, one end of the auxiliary shaft 150 contacts the other end of the spring 130 to support the compression force applied to the spring 130 and the elastic force of the spring 130, And is inserted into a receiving port 215 formed on the other side of the receiving groove 211. The auxiliary shaft 150 is positioned on the opposite side of the housing 110 in correspondence with the rotating shaft 120 and rotates coaxially with the rotating shaft 120.

One end of the separation preventing cap 160 and the other end of the auxiliary shaft 150 are passed through the one end of the rotation shaft 120 and the other end of the auxiliary shaft 150, A hollow portion is formed so as to engage with the engagement protrusion of the rotation shaft 120 and the auxiliary shaft 150 to prevent the rotation shaft 120 and the auxiliary shaft 150 from being separated from the inside of the housing 110.

11, the pressing cam 140 moves in a linear direction with respect to the rotation of the rotating shaft 120 and provides the pressing force corresponding to the rotation of the rotating shaft 120 to the spring 130. As a result, It converts the motion into linear motion. A guide 141 is provided on the outside of the pressing cam 140 so as to move back and forth only in a linear direction along a guide groove 111 provided in the housing. The guide 141 of the pressing cam 140 may be formed on the outer circumferential surface of the pressing cam 140 in the form of a guide groove when the guide groove 111 is provided as a guide rail.

When the protruding ends of the guide pins 121 of the rotary shaft 120 are positioned on the valleys 145 of the cam surfaces 143 of the pressing cam 140 as shown in FIG. 11, The door D is completely opened in a horizontal state.

Here, the minimum elastic force of the spring 130 may be set to a value capable of withstanding the magnetic gravity of the entire door D including the frame F.

Thereafter, when the door D is rotated and closed, the rotary shaft 120 coupled to the frame F rotates simultaneously with the rotation of the frame F, and at the same time, The pin 121 is slid along the cam surface 143 so that the pressing cam 140 moves downward as the guide pin 121 presses the cam surface 143 and the minimum compression state (or decompressed state) The compression force is increased in the spring 130. Accordingly, the elastic force generated in the spring due to the reaction of the increased compression force is transmitted to the rotary shaft 120 through the pressing cam 140 again, thereby balancing with the magnetic gravity of the door D fixed to the rotary shaft 120, By maintaining the current rotational angle of the door D, the door D remains open at the current angle unless the user applies further force to the door D.

When the guide pin 121 is positioned on the floor 147 as shown in FIG. 10 through the cam surface 143, the compressive force applied to the spring 120 is maximized and the maximum compressed spring 120 The elastic force applied to the door D is also maximized. At this time, the door D is almost closed.

10 shows a state in which the rotary shaft 120 and the pressing cam 140 are engaged with each other in a state in which the door D is vertical or fully closed. The guide pin 121 of the rotary shaft 120 is engaged with the spring 130, (144) which is the maximum compression point of the cam surface (143).

At this time, the guide pin 121 of the rotary shaft 120 receives a force to slide on the valley 145 to which the lower compression force acts due to the elastic force of the spring 130, Since it is in contact with the front surface, the door D can not rotate any further (clockwise), so that the door D keeps the open space of the storage space resiliently closed. In this state, in order to open the door D, the force exceeding the floor 147, which is the maximum compression point of the spring 130, must be applied in the counterclockwise direction. That is, in the closing operation of the door D, the spring 130 generates the greatest elastic force immediately before closing and rotates the rotary shaft 120 so that the door D is completely closed.

Therefore, when the door D is closed, the door D is not opened unless the force of the guide pin 121 over the floor 147 is generated by the rotation of the rotary shaft 120. Therefore, It is possible to solve the problem that the door is not closed sufficiently in the manner of using the apparatus.

When the user pulls the door D, the rotation of the rotary shaft 120 causes the pressing cam 140 to move. At this time, the pressing cam 140 move while reducing the compressive force of the spring 130. When the guide pin 121 of the rotary shaft 120 passes the cam surface 143 and is positioned at the valley 145, the door 20 is completely opened.

Even in the opening operation process as in the closing operation of the door D, the magnetic gravity of the door D is positioned in balance with the compression force (elastic force of the spring) of the pressing cam 140 for compressing the spring 130 It is possible to maintain the opened state of the door 20 (maintain the current opening angle).

As described above, the flap-type door hinge capable of adjusting the position and maintaining the angle of the door provided according to the present invention is installed in the door of the open-top type storage cabinet such as a sink or the like so that the flap door can be easily opened and closed, So that the position of the door can be easily adjusted by the user.

U: Cabinet D: Door
F: frame T: fixed frame
O: center of rotation
HL: Left hinge HL: Right hinge
100: door spring buffer
110: housing 111: guide groove
120: rotating shaft 121: guide pin
123: Fixing hole 130: Spring
140: pressure cam 141: guide
143: Cam side 145: (Cam) goal
147: (cam) floor 150: auxiliary axis
160, 170: an escape prevention cap
600:
610: right and left fixing members
602, 604: Fixing piece 612:
614: guide 616: screw hole
680: Fastener
620: cover member
621: multiple grooves 622:
623: guide groove 624: screw hole
630:
631: screw adjusting groove 632: latching groove
634: Screw
640:
641: head portion 642: thread portion

Claims (5)

In the door hinge provided on the cabinet flap door,
Both side portions are rotatable about the center of rotation O,
A pair of door adjusting portions 600 are fixed on the upper side of the inner space of the cabinet to adjust the position by moving the door forward and backward,
And the door spring buffering part 100 of the other side is fixed to one end frame F of the door D so as to provide an elastic force when the door D is opened and closed. Door hinges.
The method according to claim 1,
The door adjusting unit 600 includes:
And a screw hole is formed on the rear surface of the guide member. The screw hole is formed on the rear surface of the guide member. Left and right fixing members;
And a rotatable member having one end rotatably coupled to the door spring cushion and having a polygonal groove for fixing to and connecting to the corner of the door spring, and the other side surrounding the left and right fixing members through a cover, A cover member formed with a guide groove opened rearward at a rear end thereof and having a screw hole formed at one side thereof;
Wherein the cover member is screwed to the screw hole of the cover member and has a screw adjusting groove on one side and a guide of the left and right fixing member on the other side to adjust a distance of the cover member relative to the left and right fixing members, Wow;
A front and rear adjusting member which is engaged with the guide groove formed at the rear of the cover member and whose threaded portion is screwed into the screw hole of the left and right fixing members so that the cover member can be moved back and forth with respect to the right and left fixing members; Wherein the door hinge is adjustable in position and angle of the door.
3. The method of claim 2,
Wherein the polygonal portion and the polygonal groove are formed in a square shape. The flap-type door hinge according to claim 1,
The method according to claim 1,
The door spring cushioning unit 100 includes:
A pair of guide pins disposed symmetrically on both ends of the frame and symmetrically fitted and fixed integrally with each other; a pair of guide pins rotatably positioned in the housing and protruding on an outer circumferential surface of one side, And a guide groove or a guide is formed in the outer circumferential surface of the outer circumferential surface so as to be movable along a guide or guide groove formed in the longitudinal direction on the inner circumferential surface of the housing and inserted into the housing in a cylindrical shape A cam surface having a pair of valleys and a floor is formed on one end surface of the rotating shaft which is in contact with the guide pin, and a pressing surface which is linearly moved by the pressure of the guide pin rotating along the cam surface when the rotating shaft rotates Is inserted into the housing such that one end thereof is in contact with the other end face of the pressing cam , The elastic force acting on the pressing cam is varied in accordance with a compressive force applied in the longitudinal direction by the linear movement of the pressing cam so that the elastic force is balanced with the magnetic gravity of the door which changes according to the rotational angle of the rotary shaft, The door is held in a stopped state by resiliently supporting the rotary shaft at any position in the open section of the door when the door is opened or closed and the closed state of the door is closed by the elastic force exceeding the magnetic gravity of the door when the door is closed And a spring for guiding the door, wherein the door is hinged to adjust the position and angle of the door.
The method according to claim 3 or 4,
Wherein the housing is coupled to the inside of the frame in a rotation-preventing state, and the door is adjustable in position and angle.

Images