JP3288107B2 - Door hinge device - Google Patents

Abstract

PURPOSE:To provide a door hinge which excellent in durability and being inexpensive in addition offensive noises in the operation has been reduced. CONSTITUTION:An intermediate hinge 12 is pivotally supported on a box side hinge 11 via a first pivot, a door side hinge 15 is pivotally supported on a second pivot 14 installed in this intermediate hinge, and both first and second collar members 21 and 22 consisting of plastics are inserted thereinto and, in turn, this first collar member 21 is clamped to the door side hinge. A plastic stopper part 29 slidably engaging with a guide part formed in the intermediate hinge is solidly formed in the second collar member 22, and a compression coil spring 30 is set up in space between the intermediate hinge and this second member. When a door is rotated as far as about more than 90 deg., the stopper part is moved in the axial direction by rotation of the first collar member to the second collar member and it is projected out of the guide part, coming into contact with a front edge of the box side hinge, thereby regulating the intermediate hinge to rotate in direction of a close-position from an open- position of 90 deg..

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device for a door which can be suitably used for furniture such as lockers, archives, cabinets, etc., and more particularly, to obtain a large opening by opening the door in two stages. The improvement of the hinge device which can be.

[0002]

2. Description of the Related Art Hinge devices having a single pivot have been widely used. In order to be able to open and close the door about 180 ° by pivoting one side of the door to the furniture body in this type of hinge device, it is necessary to project the pivot from the front of the door. It is. In addition, a pivot that protrudes from the front of the door becomes an obstacle.

Japanese Utility Model Application Laid-Open No. Sho 62-94270 discloses a two-stage opening type hinge device previously provided by the present applicant. This two-stage opening / closing hinge device has a housing hinge fixed to the furniture body, an intermediate hinge whose one end is pivotally supported by the housing hinge via the first pivot, and a second end of the intermediate hinge. A projecting second pivot, a door hinge fixed to one side of the door and pivotally supported by the second pivot at a fixed distance from the intermediate hinge;
A protruding edge for restricting rotation of the intermediate hinge from the open position of the housing side hinge by about 90 ° or more. Further, first and second collar members made of synthetic resin are inserted through a second pivot between the intermediate hinge and the door-side hinge, and the first and second collar members abut on each other. A fittable wavy cam surface is formed in the circumferential direction. The first collar member is fixed to the door side hinge, and the second collar member is fixed by fitting a metal stopper member slidably engaging with a guide groove formed in the intermediate hinge. I have. Further, a spring member for pressing the second collar member against the first collar member is provided between the intermediate hinge and the second collar member.

[0004] Such a hinge device is usually provided at two locations, one on the upper side and the lower portion on one side of the door, and a cutout for accommodating an intermediate hinge of the hinge device is formed at each of the upper corner and the lower corner of the door. . When this hinge device is used, first, the intermediate hinge is rotated about 90 ° from the open position about the first pivot to move the door together with the intermediate hinge from the closed position to about 90 ° with respect to the furniture body. Can be opened. At this time, the first and second collar members are kept in the fitted state by the spring force of the spring member, whereby the free rotation of the door side hinge with respect to the intermediate hinge is restricted. When the intermediate hinge is rotated by about 90 °, the protruding edge formed on the intermediate hinge abuts on the end of the housing-side hinge, whereby further rotation of the intermediate hinge is regulated. Also, when the intermediate hinge is rotated by about 90 ° from the closed position, the second pivot moves forward of the furniture body. Then, the door is moved together with the door-side hinge about the second pivot with respect to the intermediate hinge. By turning about 90 °, the door can be opened up to about 180 ° with respect to the furniture body. When the door is turned by about 90 ° or more, the first collar member turns while pressing the second collar member in the axial direction against the spring member, so that the stopper member protrudes from the guide portion. Contact the front edge of the hinge on the housing side. Therefore, the intermediate hinge is about 90
The rotation in the direction from the opening position of ° to the closing position is also restricted. On the other hand, when the door is in the closed position, the intermediate hinge is stored in the notch of the door, so that the second pivot or the like can be prevented from protruding from the front surface of the door.

[0005]

SUMMARY OF THE INVENTION The present invention is a further improvement of the above-described two-stage opening / closing type hinge device. That is, in the conventional hinge device of the two-stage opening / closing type, the hinge on the housing side, the intermediate hinge, and the hinge on the door side are made of metal in order to secure a desired strength, and the first hinge having the wavy fitting surface at the contact end. The second collar member is made of a synthetic resin. on the other hand,
The stopper member is formed of a metal member that is press-formed in a substantially L-shape. A circular hole is formed in a bottom plate portion of the metal stopper member, and a hollow shaft that fits into the circular hole is formed in the second collar member made of synthetic resin. Is formed, and a projection formed on the outer periphery of the hollow shaft portion of the synthetic resin collar member is engaged with an engagement groove formed in a circular hole of a bottom plate portion of the metal stopper member, thereby forming the synthetic resin collar member. The second collar member is restricted from rotating with respect to the metal stopper member.

As described above, in the conventional hinge device of the two-stage opening / closing type, since the stopper member and the second collar member are formed separately, the number of parts of the hinge device is increased,
There was a disadvantage that the cost was increased. Further, the rotation of the second collar member made of synthetic resin with respect to the stopper member is merely restricted by the engagement between the protrusion on the outer periphery of the hollow shaft portion and the engagement groove of the bottom plate portion of the metal stopper member. Therefore, when the projection of the second collar member made of synthetic resin is crushed,
The rotation of the collar member is not restricted with respect to the stopper member, and the stopper member does not operate properly.

Further, in the conventional two-stage opening / closing type hinge device, the metal stopper member slides on the inner surface of the guide groove of the metal intermediate hinge, and when the metal stopper member protrudes from the guide groove, it is made of metal. There is a disadvantage that an unpleasant metal sliding sound or a metal collision sound is generated during opening / closing of the door because the front edge of the body side hinge comes into contact with the front edge.

Accordingly, an object of the present invention is to provide an inexpensive, durable, and unpleasant noise during use, and to provide a hinged door from the housing side.
An object of the present invention is to provide a hinge device of a two-stage opening / closing type door that can be prevented from coming off.

[0009]

According to the present invention, a housing hinge fixed to a housing of furniture and an intermediate hinge whose one end is pivotally supported by the housing hinge via a first pivot. A second pivot protruding from the other end of the intermediate hinge, a door hinge fixed to one side of the door and pivotally supported by the second pivot at a fixed distance from the intermediate hinge; A hinge device for a door in furniture including a degree-of-opening restricting portion for restricting rotation of the intermediate hinge from a closed position by about 90 ° or more with respect to the hinge, wherein a second pivot between the intermediate hinge and the door-side hinge is provided. The first and second collar members made of a synthetic resin are inserted therethrough, and the abutting ends of the first and second collar members have circumferentially formed wavy cam surfaces that can be fitted to each other, The first collar member is fixed to a door side hinge, and the second collar member is slidably engaged with a guide portion formed on an intermediate hinge. A stopper member made of a synthetic resin is integrally formed, and a spring member for pressing the second collar member against the first collar member is provided between the intermediate hinge and the second collar member, and the first and the second collar members are provided. When the intermediate hinge rotates, the second collar member is held in the fitted state by the spring force of the spring member, thereby restricting the free rotation of the door-side hinge with respect to the intermediate hinge, and the stopper portion. When the door is turned by about 90 ° or more, the first collar member rotates with respect to the second collar member to move in the axial direction, and protrudes from the guide portion to abut on the front edge of the housing-side hinge. Restricting the intermediate hinge from rotating from the opening position of about 90 ° to the closed position, and the first pivot is implanted in the hinge on the housing side and is turned into a bearing hole formed through the intermediate hinge. Movably fit, projecting radially at the tip of the first pivot A projection is provided, and an insertion groove for inserting the projection in the axial direction is formed in the bearing hole of the intermediate hinge, and a bearing hole and an insertion groove are communicated with the door-side facing surface of the intermediate hinge facing the door hinge. A hinge device for a door is provided, wherein a substantially fan-shaped recess for receiving the pivot protrusion is formed.

[0010]

In the hinge device for a door having the above construction, a stopper portion made of synthetic resin is formed integrally with the second collar member so as to slidably engage with the guide portion formed on the intermediate hinge. Thus, the number of parts can be reduced. In addition, since the second collar member and the stopper can be firmly integrated, the malfunction of the stopper can be prevented, and the durability of the hinge device can be improved. Further, even if the intermediate hinge or the housing-side hinge is made of metal, it is possible to prevent generation of an unpleasant metal sliding sound or a metal collision sound with the stopper portion. Also,
A hinge is formed by the cooperative action of the projection and the recess of the pivot.
Prevents the attached door from falling out of the first pivot on the housing
it can.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings . FIG. 1 is a perspective view showing an embodiment of a hinge device according to the present invention mounted on an upper part of a capinet door. FIG. 2 is a partially broken front view showing a state where the hinge device is attached to the upper part of the door. FIG. 3 is a longitudinal sectional view of the hinge device taken along line 3-3 in FIG. FIG. 4 is an exploded perspective view of the hinge device and the door. FIG. 5 is a plan view showing the opening and closing operations of the door and the hinge device.

With reference to these figures, a hinge device 10 includes a metal housing hinge 11 fixed to a cabinet housing 4 with screws 7, and the housing hinge 11 has a metal intermediate hinge 12. Is pivotally supported via a first pivot 13. A second pivot 14 extending downward is implanted at the other end of the intermediate hinge 12 by, for example, caulking. A door hinge 15 fixed to a mounting plate 8 in a notch 6 formed in an upper corner portion of one side of the door 5 with a screw 9 is pivotally supported on the pivot 14 at a predetermined interval from the intermediate hinge 12. ing. The intermediate hinge 12 is housed in the cutout 6 of the door 5 when in the closed position.

At the front edge of the intermediate hinge 12, when the intermediate screw 12 is rotated by about 90 ° from the closed position, it comes into contact with one end of the housing-side hinge 11 to restrict the solidification of the intermediate hinge 12 further. A locking edge 16 is formed as an opening regulating portion. The locking rim 16 is accommodated in the notch 6 of the door 5 when the intermediate hinge 12 is in the open position. At this time, the locking edge 16
Is located on substantially the same plane as the front of the door 5, and the notch 6
The front opening of the door.

As shown in FIG. 4, the first pivot 13 is implanted, for example, by caulking in the hinge 11 on the tube side and extends downward, and is rotatable in a bearing hole 17 formed through the intermediate hinge 12. To be fitted. The tip of the pivot 13 is provided with a projection 18 projecting in the radial direction. As shown in FIG. 5 , the bearing hole 17 of the intermediate hinge 12 is formed with an insertion groove 19 through which the projection 18 is inserted in the axial direction. A substantially fan-shaped recess 20 is formed on the lower surface of the intermediate hinge 12 facing the door hinge 15 and communicates with the bearing hole 17 and the insertion groove 19 and accommodates the projection 18 of the first pivot 13. As can be easily seen from FIGS. 5 and 4, the projection 18 has the middle hinge 12 in the closed position and the housing-side hinge 11.
Is formed at a position where the conducting groove 19 can be inserted when it is at a position fixed to the housing 4. Therefore, by setting the door 5 on which the door hinge 15 and the intermediate hinge 12 are assembled to the closed position when attaching the housing hinge 11 to the housing 4, the first pivot shaft 13 can be easily fitted into the bearing hole 17 of the intermediate hinge 12. Can be inserted. When the door 5 is turned from the closed position, the projection 18 separates from the insertion groove 19 and
The projection 18 plays a role in preventing the pivot 13 from coming off because it is accommodated in the inside.

Further, since the projection 18 is accommodated in the recess 20 and the projection 18 and the pivot 13 do not project downward from the lower surface of the intermediate hinge 12, the lower surface of the intermediate hinge 12 and the door 5
Of the notch 6 with the bottom can be reduced. Therefore, the appearance of the front surface of the door 5 can be prevented from being impaired.

Further, since the recess 20 is formed on the side of the second pivot 14 from the center of the bearing hole 17, the intermediate hinge 12 is formed.
Can be reduced in size.

The second hinge between the intermediate hinge 12 and the door-side hinge 15
The first and second collar members 21 and 22 made of a synthetic resin are inserted through the pivot 14 of the base member, and the abutting ends of the first and second collar members 21 and 22 can be fitted to each other in a wavy cam surface 23. , 24 are respectively formed in the circumferential direction.

The first collar member 21 is provided with a pedestal 25 which is in contact with the upper surface of the door hinge facing the intermediate hinge 12. The lower surface of the pedestal 25 is formed on the upper surface of the door hinge 15. A projection 27 that fits into the engagement hole 26 is provided in a protruding manner. The pedestal 25 and the projection 27 are formed integrally with the collar member 21 using a synthetic resin.

The second collar member 22 is integrally formed with a synthetic resin stopper 29 which is slidably engaged with a guide 28 formed on the intermediate hinge 12. A spring member 30 for pressing the second collar member 22 against the first collar member 21 between the intermediate hinge 12 and the second collar member 22
Are arranged. The tongue member 30 is preferably a second
Between the collar member 22 and the intermediate hinge 12 of the second pivot 1
4, a compression coil spring. Since the first collar member 21 always receives the pressing force of the compression spring 30, the projection 27 does not come out of the engagement hole 26 of the door-side hinge 15.

The door-side hinge 15 comprises a plate 31 and a bearing member 32 implanted in the plate 31 and extending downward. The bearing member 32 has bearing holes 33 opened at upper and lower ends thereof. The second pivot 14 is rotatable in a large-diameter shaft portion 34 rotatably fitted to the first and second collar members 21 and 22 and a bearing hole 33 of a bearing member 32 of the door hinge 15. A small-diameter shaft portion 35 that fits in the large-diameter shaft portion 34 and the small-diameter shaft portion 3.
By contacting the stepped portion with the upper surface of the door hinge 15, the distance between the intermediate hinge 12 and the door hinge 15 is kept constant. The pivot 14 is prevented from being pulled out of the door side hinge 15 by a retaining ring 36 which is locked at a tip portion thereof.

A hinge device similar to the hinge device 10 having the above-described configuration is arranged in the notch at the lower corner of the door, and attached to the door and the housing in a vertically symmetric manner.

In the hinge device 10 having the above configuration,
First, when the door 5 is turned from the open position to an opening position of about 90 °, the intermediate hinge 12 turns about 90 ° from the open position about the first pivot 13. At this time, the wavy cam surfaces 23 and 24 of the first and second collar members 21 and 22 are kept in a fitted state by the spring force of the spring member 30, so that the intermediate hinge 1
The free rotation of the door-side hinge 15 with respect to 2 is restricted. Therefore, between the closed position and the opening position of about 90 °, the door 5
Rotates integrally with the intermediate hinge 12. When the intermediate hinge 12 rotates together with the door 5 to an opening position of about 90 °, the locking edge 16 formed on the intermediate hinge 12 comes into contact with one end of the housing-side hinge 11. Rotation is restricted.

As shown in FIG. 5, when the intermediate hinge 12 is turned by about 90 ° from the closed position, the second pivot 14 moves forward of the housing 4, so that the second pivot 14 is next moved. By pivoting the door 5 about the center hinge 12 together with the door hinge 15 about the center hinge 12 about the center, the door 5 can be opened up to about 180 ° with respect to the housing 4 without interfering with the adjacent door. it can. When the door 5 is turned by about 90 ° or more, the first collar member 22 is rotated while pressing the second collar member 21 upward in the axial direction against the spring member 30. The stopper portion 29 integral with the housing portion projects upward from the guide portion 28 and contacts the front edge of the housing-side hinge 11. Accordingly, the rotation of the intermediate hinge 12 from the opening position of about 90 ° to the direction of the closing position is also restricted, and the intermediate hinge 12 is in a fixed position. On the other hand, when the door 5 is in the closed position, the intermediate hinge 12 is housed in the cutout 6 of the door 5, so that the second pivot 14 and the like can be prevented from protruding from the front surface of the door 5.

As described above, since the stopper portion 29 made of synthetic resin is formed integrally with the second collar member 22 so as to slidably engage with the guide portion 28 formed on the intermediate hinge 12, so that parts are formed. Points can be reduced. Further, since the second collar member 22 and the stopper portion 29 can be firmly integrated, the malfunction of the stopper portion 29 can be prevented, and the durability of the hinge device can be improved. Furthermore, even if the intermediate hinge 12 and the pipe-side hinge 11 are made of metal, it is possible to prevent the generation of harsh metal sliding noise and metal collision noise with the stopper portion 29.

Although the illustrated embodiment has been described above, the present invention is not limited to only the above embodiment, and various changes may be made to each component within the scope of the invention described in the claims. be able to. For example, the opening regulating member may be constituted by an intermediate hinge or another projection provided on the housing side hinge instead of the locking projection of the intermediate hinge. Further, the spring member for pressing the second collar member against the first collar member may be an elastic sleeve made of rubber or the like. Further, the present invention is applicable not only to furniture doors but also to room doors, and is also applicable to double doors in addition to single doors.

[0026]

As is apparent from the above description, according to the present invention, the second collar member fitted with the first collar member and the guide portion formed on the intermediate hinge are slidably engaged. Since the stopper portion and the stopper portion are integrally formed of synthetic resin, it is inexpensive, has excellent durability, can reduce unpleasant noise during operation, and can cooperate with the projection of the first pivot and the recess.
By the action, the door with the hinge attached is the first
It is possible to provide a hinge device of the door of the two-stage HirakiHiraki formula that can prevent the escape from the pivot.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a hinge device according to the present invention mounted on an upper part of a cabinet door.

FIG. 2 is a partially cutaway front view showing a state where a hinge device is attached to an upper portion of a door.

FIG. 3 is a longitudinal sectional view of the hinge device taken along line 3-3 in FIG. 2;

FIG. 4 is an exploded perspective view of a hinge device and a door.

FIG. 5 is a plan view showing an opening and closing operation of a door and a hinge device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 4 Housing 5 Door 6 Notch 10 Hinge device 11 Housing side hinge 12 Intermediate hinge 13 1st pivot 14 2nd pivot 15 Door side hinge 16 Locking edge (opening regulation part) 17 Bearing hole 18 Protrusion 19 Insertion groove Reference Signs List 20 recess 21 first collar member 22 second collar member 23, 24 wavy cam surface 25 pedestal 26 engagement hole 27 projection 28 guide portion 29 stopper portion 30 spring member 34 large-diameter shaft portion 35 small-diameter shaft portion

Claims (1)

(57) [Claims] 1. A hinge (11) on the housing side fixed to a housing of furniture, an intermediate hinge (12) having one end pivotally supported by the hinge on the housing side via a first pivot (13). A second pivot (14) protruding from the other end of the intermediate hinge; and a door side fixed to one side of the door (5) and pivotally supported by the second pivot at a fixed distance from the intermediate hinge. A hinge device for a door, comprising: a hinge (15); and an opening degree restricting portion (16) for restricting rotation of the intermediate hinge from the closed position with respect to the housing-side hinge by about 90 ° or more.
First and second collar members (21) and (22) made of synthetic resin are inserted through a second pivot (14) between the intermediate hinge (12) and the door hinge (15), 1st and 2nd
Corrugated cam surfaces (23) and (24) that can be fitted to each other are formed in the circumferential direction at the contact end of the collar member, and the first collar member is fixed to the door side hinge, and is attached to the second collar member. Is integrally formed with a stopper portion (29) made of synthetic resin, which is slidably engaged with a guide portion (28) formed on the intermediate hinge,
A spring member (30) for pressing the second collar member against the first collar member is disposed between the intermediate hinge and the second collar member, and the first and second collar members are turned by the intermediate hinge. When the door hinge is moved by the spring force of the spring member, the door hinge is freely rotated with respect to the intermediate hinge by being held in the fitted state, and the stopper is rotated by about 90 ° or more. Then, the first hinge member moves in the axial direction by the rotation of the first collar member with respect to the second collar member, and projects from the guide portion and abuts on the front edge of the housing-side hinge (11). The first pivot is pivotally fitted into a bearing hole (17) which is implanted in a hinge on the housing side and is formed through an intermediate hinge. At the tip of the first pivot, a projection (18) protruding in the radial direction is provided. An insertion groove (19) is formed in the bearing hole of the intermediate hinge to insert the projection in the axial direction. The door-side facing surface of the intermediate hinge facing the door hinge communicates with the bearing hole and the insertion groove. A hinge device for a door, characterized in that a substantially fan-shaped recess (20) for receiving one pivot projection is formed.