JP2536545Y2 - Pivot hinge - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pivot hinge for pivotally connecting an upper part and a lower part of a door to a door mounting body so as to be openable and closable by rotation, and more particularly, a pivot hinge having a door mounting position adjusting mechanism. About.

[0002]

2. Description of the Related Art Conventionally, as a pivot hinge having a door mounting position adjusting mechanism, those shown in FIGS. 5 and 6 are known.

The pivot hinge shown in FIG. 5 is provided with an elongated hole d that penetrates vertically in a shaft connecting portion c of a connecting arm b fixed to one side of the door a at an upper end and a lower end thereof. A female screw hole, which is loosely fitted to a rotating shaft e provided on the S side so as to be horizontally movable in the width direction of the entrance and exit of the building S, and which is provided in the connecting portion c and extends outward from both ends of the elongated hole d. f, g
, The adjusting screws h and i are screwed in, respectively, and the tips of the adjusting screws h and i are brought into contact with both side surfaces of the rotation shaft e. By adjusting the screwing amount from the left and right directions, the connecting arm b is moved horizontally with respect to the rotation axis e, thereby the door a
And the gap between the frame j of the building c and the door a can be adjusted.

[0006] The pivot hinge shown in FIG. 6 includes one mounting member 1 mounted on a pillar k or the like and another mounting member m mounted on upper and lower end surfaces of a door a. Is provided with a support shaft n, and a receiving plate portion o of the mounting member m.
The bearing plate q fitted on the support shaft n is loosely fitted in the mounting hole p formed in the shaft so that a gap is formed on the left and right thereof. r, the other mounting member m is moved in the lateral width direction of the door a with respect to the support shaft n by a turning operation performed from the lateral direction of the screw r, and thereby the column k and the like are moved. The door a can be adjusted in its width direction.

[0005]

However, in the conventional pivot hinge shown in FIG. 5 and the conventional pivot hinge shown in FIG. 6, the operation for adjusting the mounting position of the door is performed in the horizontal direction. Therefore, the driver or the like must be turned, and the workability is poor.

The present invention has been made in view of the above-mentioned problems of the conventional pivot hinge. A cover plate, which is provided between the base plate and the projecting portion of the arm and has a fulcrum shaft fixed thereto, is provided. The fulcrum shaft is rotatably inserted into a shaft hole in the protrusion of the arm by rotatably supporting the protrusion on the upper surface of the protrusion horizontally.
On the other hand, a fixing screw is inserted through the center hole of the fulcrum shaft and the elongated hole in the projecting portion of the base plate, and the tip is screwed to a fixing nut arranged in contact with the lower surface of the projecting portion of the base plate. It is an object of the present invention to make it possible to easily adjust the lateral width of the vehicle.

[0007]

According to the present invention, in order to achieve the above object, a projecting portion is bent from the front end of a substrate, and a long hole is formed in the projecting portion in a direction perpendicular to the projecting direction. A base plate, an arm having a projecting portion bent from the tip of the fixing plate, and an arm having a shaft hole penetrating the projecting portion, and a cover plate having a fulcrum shaft having a center hole fixedly erected on the upper surface near the end portion. A cover plate is supported on the upper surface of the protrusion of the base plate so as to be rotatable horizontally, and a fulcrum shaft is rotatably inserted into the shaft hole, while the center hole is provided between the two protrusions. A hinge is inserted by inserting a fixing screw into a long hole, and a tip thereof is provided on the lower surface of the protruding portion, and is screwed to a fixing nut disposed in contact with a periphery of a lower end opening of the long hole. It is.

[0008]

First, the base plate is fixed by fixing the base plate on the inner surface of the vertical frame of the door mounting body by screwing the base plate to the door hanging side, and the projecting portion is projected forward. When the cover plate is stacked on the upper surface of the protruding portion, the base portion is rotatably supported on the base portion of the protruding portion so as to be horizontally rotatable with a rotation shaft such as a screw, and the fulcrum shaft is located on the front portion, To protrude. On the other hand, the arm is fixed by fixing its fixing plate to the end face of the door by screwing it to the hanging side, and protruding the protruding portion forward.

The fulcrum shaft is rotatably inserted into a shaft hole formed in the projecting portion of the arm, so that the projecting portions of the arm and the base plate are opposed to each other at the up and down positions, and are penetrated through the fulcrum shaft. When the center hole of the base plate and the long hole vertically penetrating the protrusion of the base plate are aligned, a fixing screw is inserted into the center hole and the long hole from above, and the tip end protrudes downward from the long hole. Then, it is screwed into a fixing nut disposed on the lower surface of the protruding portion of the base plate and abutting around the lower end opening of the long hole.

Therefore, in a temporarily fixed state in which the fixing screw and the fixing nut are merely screwed together without being tightened, when the door is held and the door is moved in the lateral width direction, the shaft at the projecting portion of the arm is rotated. With the fulcrum shaft being inserted in the hole, the cover plate is rotated horizontally about the rotation axis of the base and in the width direction of the door, thereby moving the door,
It can be adjusted by moving in the width direction.

After the door is moved in the width direction of the door mounting body and adjusted to a predetermined position, the fixing screw is rotated,
By screwing with the fixing nut, the protrusion of the base plate, the cover plate, and the fulcrum shaft are fastened and fixed together, thereby completing the installation of the door. When the door is opened, the upper surface of the protrusion of the base plate, that is, the base of the cover plate is exposed from the back side of the protrusion of the arm,
The rotating shaft may be fastened with a screw or the like to fix the projecting portions of the cover plate and the base plate integrally.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the base plate 1 is formed so that the mounting plate 1b is bent upward at a right angle from one side of the substrate 1a to form a substantially L-shaped front surface, and forward from the substrate 1a. A protruding portion 1c extends horizontally, and the protruding portion 1c has a long hole 1d which is long in the width direction on the left and right sides.
Are provided vertically.

The cover plate 2 is formed to have substantially the same size as the substrate 1a and the protrusion 1c of the base plate 1.
The outer peripheral edge 2a is bent downward from the front end to the left and right sides of the front end portion.

The cover plate 2 has a shaft mounting hole 2b.
Are fitted in the vertical direction, and the lower end 3a of the fulcrum shaft 3 around which the flange 3b is provided is fitted therein, and the flange 3b is stacked on the upper surface of the cover plate 2. In this state, By swaging the lower end 3a, the fulcrum shaft 3 is fixed upright on the cover plate 2.

A center hole 3c extends through the fulcrum shaft 3 in the axial direction, and an enlarged concave hole 3d is continuously provided at the upper end of the central hole 3c, so that it is fixed at the boundary between the central hole 3c and the enlarged concave hole 3d. An upwardly-facing stepped portion 3e for receiving the head of the screw 7 is provided.

When the cover plate 2 is stacked on the upper surface of the base plate 1a and the protrusion 1c of the base plate 1, the base 2c is rotatably supported on the base plate 1a by a rotary shaft 4 made of a screw or the like. ing.

Next, the arm 5 is formed so as to project from the one end of the fixed plate 5a at right angles to the projection 5b at a right angle to form a substantially L-shaped plane. Correspondingly, the shaft hole 5c is vertically penetrated.

The shaft hole 5c of the arm 5 is
May be a simple circular hole which can be fitted therein, but as shown in FIGS. 1 and 2, an enlarged recessed hole 5d which opens downward is continuously provided at the lower portion thereof, and The thrust bearing 6 may be fitted.

Further, the protrusion 1 of the base plate 1
c on the lower surface and around the lower end opening of the long hole 1d.
As clearly shown in (a), the counterbore 1e is recessed in a substantially oval shape on one half, and is provided on the bottom surface of the
Are formed in the longitudinal direction as a non-slip 1f.

A fixing nut 8 screwed with the fixing screw 7
Is set so that its outer diameter can be fitted into the elongated hole 1d and can be freely moved in the longitudinal direction of the elongated hole 1d, and a lower end has a flange for making contact with the counterbore 1e. 8a is provided in a substantially oval shape in a plane, and a non-slip 8b is formed on the upper surface of the flange 8a so as to mesh with the non-slip 1f provided to the counterbore 1e as shown in FIG. Is formed.

In order to use the pivot hinge having the above structure, the door is pivotally attached to the mounting body by the following operation. First, the base plate 1 has its substrate 1a
1 to 3, the mounting plate 1b is attached to the inner surface of the vertical frame 9b by screws 10 ° in a state where the mounting plate 1b is brought into contact with the inner surfaces of the lower horizontal frame 9a and the vertical frame 9b of the door mounting body 9, respectively. By fixing, the projecting portion 1c is made to project forward.

The above illustrated base plate 1 has its mounting plate 1b stacked on the cover 11 and
It is fixed to the inner surface of the vertical frame 9b by 0 °. Of course, at this time, the base plate 1 is on the door mounting body 9 and is fixed to the door hanging side.

On the other hand, the arm 5 has its fixing plate 5a on the lower end surface 12a of the door 12 in the illustrated example, and is fixed to the hanging side of the door with a screw 13 ', and its protruding portion 5b protrudes forward. Let it.

Next, the door 12 is held, the arm 5 and the projecting portions 5b, 1c of the base plate 1 are vertically opposed to each other, and the shaft hole 5c is inserted into the fulcrum shaft 3 so as to be rotatable. 3c and the protrusion 1c of the base plate 1
A fixing screw 7 is inserted from above into the long hole 1d, and its tip is screwed into a fixing nut 8 fitted to the counterbore 1e on the lower surface of the protruding portion 1c, and temporarily fixed.

Further, by holding the door 12, an arrow B in FIG.
When the cover plate 2 is moved in the width direction of the door indicated by B ', the cover plate 2 rotates in the direction of an arrow B⇔B' about the rotation axis 4 of the base 2c through the fulcrum shaft 3, whereby the elongated hole 1d
The door 12 is displaced in the width direction within the effective length range of.

The door 12 is moved in the width direction, and
Is adjusted, the fixing screw 7 is rotated from above with a screwdriver or the like, and is screwed into the fixing nut 8, so that the projection 1c of the base plate 1 and the cover plate 2 are fastened, and the door 12 is closed. Is completed.

In this embodiment, the mounting plate 1b is bent upward so as to fix the base plate 1 to the inner surface of the vertical frame 9b of the door mounting body 9. However, similar to the arm 5, the plane is substantially flat. L-shaped lower frame 9 of the door mounting body 9
Of course, it may be fixed to the inner surface in a. In FIGS. 1 to 3, reference numeral 14 denotes a cover fitted to the projecting portion 5 b of the arm 5.

[0028]

[Effects of the Invention] The present invention is configured as described above, so that when the fixing screw is loosened, the door is
By moving in the width direction, the cover plate rotates about the rotation axis, thereby making it possible to easily adjust the width direction of the door, and by screwing the fixing screw and the fixing nut together, the cover plate and the base plate can be connected to each other. The door can be attached to a predetermined position without loosening or the like by being fastened to the protrusion. In addition, since the fixing screw can be rotated by an operation of a driver or the like from above, the workability can be improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a pivot hinge according to an embodiment of the present invention, showing a door mounted state.

FIG. 2 is a sectional view taken along line AA 'in FIG.

FIG. 3 is a partially cutaway plan view showing a door mounting state of the embodiment.

FIG. 4A is a bottom view of a long hole and a counterbore in a protruding portion of a base plate, and FIG. 4B is a plan view of a fixing nut.

FIG. 5 is a longitudinal sectional view of a main part of a conventional example of a pivot hinge, which is partially cut away.

FIG. 6 is a plan view of a main part of another conventional pivot hinge, which is partially cut away.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base plate 1a Substrate 1c Projection 1d Slot 5b Projection 2 Cover plate 3 Support shaft 3c Center hole 5 Arm 5a Fixing plate 5c Shaft hole 7 Fixing screw 8 Fixing nut

Claims (1)

(57) [Scope of request for utility model registration] 1. A projecting portion is bent from a tip of a substrate, a base plate having a long hole penetrating the projecting portion in a direction perpendicular to the projecting direction, and a projecting portion is bent from a tip of a fixing plate. An arm having a shaft hole passing through the projecting portion; and a cover plate having a fulcrum shaft fixedly standing upright at a top surface near the end portion on the upper surface near the end portion, wherein the base plate projects between the projecting portions. A cover plate is supported on the upper surface of the cover so as to be rotatable horizontally, and a fulcrum shaft is rotatably inserted into the shaft hole, while a fixing screw is inserted into the center hole and the long hole, and the tip is inserted into the shaft hole. A pivot hinge, which is screwed to a fixing nut on the lower surface of the protruding portion and abutting around the lower end opening of the elongated hole.