JPH06288141A - Pivot hinge - Google Patents

Abstract

PURPOSE:To simply adjust the position of a rotatively supported door. CONSTITUTION:The first circular hole 16 is formed on the base plate of a door side top pivot 13a, the first disk 17 is rotatably coupled with the first circular hole 16, the second disk 19 is coupled with the second eccentric circular hole 18 of the second disk 19, and an eccentric rotary support shaft 20 is protruded on the second disk 19. The first and second disks 17, 19 are fixed by a screw 24, and the rotary support shaft 20 is inserted into the bearing 25 of a top pivot l3b on the upper frame side to constitute a pivot hinge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pivot hinge having means for adjusting the axial center position.

[0002]

2. Description of the Related Art In general, a pivot hinge is often used as a rotary support for a door which is relatively heavy. That is, FIG.
As shown in FIG. 3, upper and lower pivot hinges 4 and 5 are attached to an upper part and a lower part on one side of the door 1 and an upper frame 2 and a lower frame 3 at a frontage of the building.

By the way, in the installation of the door 1,
In order to open and close the thick door 1 without hindrance,
A gap between the lower side of the door 1 and the lower frame 3 is about 6 mm, and a gap between the other side and the upper frame 2 and the front side is about 3 mm. Therefore, the mounting positions of the pivot hinges 4 and 5 require precision, and it becomes necessary to make adjustments even after mounting.

In the conventional pivot hinge, as shown in FIG. 7, the upper pivot hinge 4 comprises a door side top pivot 4a and an upper frame side top pivot 4b, and a lower pivot hinge 5 is provided.
Is composed of an arm 5a and a floor seat 5b. The door-side top pivot 4a has a rotation support shaft 6, the tip of which is fitted into a bearing 7 of the upper frame-side upper top pivot 4b, and the door-side arm 5a has a bearing 8. The rotary support shaft 9 of the floor shaft seat 5b is fitted to the shaft 8. And each of these top pivots 4a, 4b and arm 5
The floor shaft seat 5b is attached to the door 1, the upper frame 2 and the lower frame 3 by a plurality of screws. Note that FIG. 8 shows the door side top pivot 4a, and the rotation support shaft 6 thereof is fixed.

[0005]

As described above, since the top pivots 4a, 4b, the arm 5a, and the floor shaft seat 5b are attached by screws, when a predetermined gap cannot be provided around the door 1. Alternatively, when there is a displacement between the top pivots 4a and 4b and between the arms 5a and the floor seat 5b, the top pivots 4
a, 4b and arms 5a, floor surface seat 5b are adjusted by shifting the mounting positions. When removing and attaching the screws that attach each top pivot 4a, 4b, arm 5a, floor surface seat 5b, There is a problem in that the work is extremely troublesome due to the formation of holes, the screw holes being crushed, and the accuracy is difficult to obtain.

The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide a pivot hinge capable of easily adjusting a positional deviation.

[0007]

In order to achieve the above object, the present invention provides a base plate, a disk rotatably fitted in a circular hole of the base plate, and the disk centered on the disk. A door side top pivot is constituted by a rotation support shaft provided in mind and the disc fixing means, and a pivot hinge is constituted by the door side top pivot and an upper frame side top pivot having a bearing into which the rotation support shaft is fitted. To do.

An arm is composed of a base plate, a cylindrical body rotatably fitted in a circular hole of the base plate, a bearing portion provided eccentrically from the center of the cylindrical body, and fixing means for the cylindrical body. The pivot hinge is constituted by the floor shaft seat having the rotation support shaft with which the arm fits.

[0009]

In the pivot hinge having the above structure, when it is necessary to shift the position of the top pivot or the arm fixed to the door side, the top pivot on the door side is eccentrically provided by rotating its circular plate. The rotary shaft is displaced in the left-right direction, and the bearing portion provided eccentrically in the arm is displaced in the left-right direction by rotating the columnar body, and the displacement of the door-side top pivot or the arm is changed by these displacements. Without that, the position of the door can be finely adjusted.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, 10 is a door, 11 is an upper frame of a frontage, 12 is a lower frame of a frontage, and 13 is a door side top pivot 1.
3a and the upper pivot hinge 13b including the upper frame side top pivot 13b, and 14 is the lower pivot hinge including the arm 14a and the floor surface seat 14b. It is attached to the frame 12.

The feature of this embodiment resides in the door-side top pivot 13a and, if necessary, the arm 14a. The upper frame side top pivot 13b and the floor surface shaft seat 14b have the same structure as the conventional one.

First, the door side top pivot 13a will be described. This door side top pivot 13a is the base plate 1
5, a first circular hole 16 is formed, and the first circular hole 16 is formed.
The first circular plate 17 is rotatably fitted in. The first circular plate 17 has a second circular hole 18 eccentric with respect to the center thereof, and a second circular plate 19 is rotatably fitted in the second circular hole 18. And this second disc 19
A rotary support shaft 20 is provided at a position eccentric to the center of the. The first and second discs 17 and 19 can rotate independently of each other, and the rotation support shaft 20 can be rotated by the rotation.
The position of is shifted on the base plate 15.
The base plate 15 has a screw hole 21 penetrating from the outer circumference to the first circular hole 16, and the first disc 17 also has a second hole from the outer circumference.
Has a plurality of screw holes 22 penetrating through the circular hole 18, and the second disc 19 has a plurality of recesses 23 on the outer circumference. Then, by screwing a screw 24 into the screw hole 21 and the selected screw hole 22, and engaging the tip of the screw 24 with the selected recess 23 of the second disc 19, the first and second discs 1
7, 19 and the rotary support shaft 20 are positioned.

The rotary support shaft 20 is fitted into the bearing 25 of the upper pivot 13b on the upper frame side to support the required rotation. Here, when the door-side top pivot 13a and the upper frame-side top pivot 13b are misaligned with each other, or when it is necessary to adjust the clearance of the side portion of the door 10, the first and second discs are used. By rotating one or both of 17, 17 the rotational support shaft 20 is displaced with respect to the base plate 15, so that the above adjustment can be performed easily and reliably. For example, in FIG. 1, the eccentric width of the rotary support shaft 20 is set to 1.5 mm, that is, the position of 3 mm can be adjusted left and right. Note that 25 in the figure is a cover. Further, the first and second discs 17 and 19 have engaging grooves 26 and 27 with which a jig is engaged at the time of rotation adjustment. Further, in this embodiment, the first and second discs 17 and 19 are used, but one disc may be provided, and the rotation support shaft 20 may be eccentrically provided on this one disc.

Next, the relationship between the arm 14a and the floor seat 14b will be described. The arm 14a has a first circular hole 29 in its base plate 28, and a first columnar body 30 is fitted in the first circular hole 29. The first cylindrical body 30 has an eccentric second circular hole 31.
The second columnar body 32 is fitted in the first column. A bearing portion 33 is provided on the second cylindrical body 32 so as to be eccentric from the center of the second cylindrical body 32. Then, the first and second
Grooves 34 and 35 are formed on the outer peripheries of the columnar bodies 30 and 32, and the edges of the positioning plate 36 attached to the base plate 28 are fitted into the grooves 34 and 35 to form the first and second columnar bodies. The bodies 30 and 32 are fixed.

The bearing portion 33 of the arm 14a is
It is rotatably supported by being fitted to the rotation support shaft 37 of the floor shaft seat 14b. Here, the arm 14a and the floor seat 14
When the positions of b are displaced from each other, or when it is necessary to adjust the clearance of the side portion of the door 10, the arm 14a is used.
By rotating one or both of the first and second columnar bodies 30, 32 in the above, the bearing portion 33 is displaced with respect to the base plate 28, so that the above adjustment can be easily performed.
And surely. For example, in FIG. 1, the bearing portion 3
The eccentric width of 3 is 1.5 mm, that is, 3 mm to the left and right.
The position of can be adjusted. Reference numeral 38 in the drawing is a cover.
The first columnar body 30 has a hexagonal seat plate 39 so that the jig can be easily engaged, and the second columnar body 32 has an engaging groove 40. Further, in this embodiment, the first and second cylindrical bodies 3
Although 0 and 32 are used, a single cylindrical body may be provided and the bearing portion may be eccentrically provided on this.

[0016]

As is clear from the description of the above embodiment,
According to the present invention, in a pivot hinge attached to an upper part or a lower part of a door, the rotation support shaft of the top pivot or the bearing part of the arm can be displaced without changing the mounting positions of the top pivot and the arm. It can be adjusted easily and accurately, and is extremely useful as a pivot support for doors.

[Brief description of drawings]

FIG. 1 is a sectional view of a pivot hinge and a door according to an embodiment of the present invention.

FIG. 2 is a plan view of a door-side top pivot of the pivot hinge.

FIG. 3 is an exploded perspective view of the door side top pivot.

FIG. 4 is a plan view of an arm of the pivot hinge.

FIG. 5 is an exploded perspective view of the arm.

FIG. 6 is a plan view of a door having a conventional pivot hinge.

FIG. 7 is a sectional view of the pivot hinge and the door.

FIG. 8 is a perspective view of a door side top pivot of the pivot hinge.

[Explanation of symbols]

 10 Door 11 Upper Frame 12 Lower Frame 13 Upper Pivot Hinge 13a Door Side Top Pivot 13b Upper Frame Side Top Pivot 14 Lower Pivot Hinge 14a Arm 14b Floor Axle 15 Base Plate 16 First Circular Hole 17 First Disc 18 Second circular hole 19 Second disk 20 Rotating spindle 25 Bearing

Claims (4)

[Claims] 1. A door-side top pivot and an upper frame-side top pivot, wherein the door-side top pivot includes a base plate, a disc rotatably fitted in a circular hole of the base plate, and the disc. Is a pivot hinge having a rotation support shaft eccentrically provided from the center thereof and fixing means for the disc, and the upper frame side top pivot has a bearing into which the rotation support shaft is fitted. 2. A circular plate rotatably fitted in a circular hole of a base plate, a first circular plate having an eccentric circular hole, and the first circular plate.
2. The pivot hinge according to claim 1, further comprising a second disc rotatably fitted in a circular hole of the disc, wherein the second disc is provided with a rotation support shaft eccentric from the center thereof. 3. An arm and a floor seat, wherein the arm is provided with a base plate, a cylindrical body rotatably fitted in a circular hole of the base plate, and the cylindrical body eccentric from the center thereof. A pivot hinge having a bearing portion and fixing means for fixing the columnar body, and a floor bearing having a rotation support shaft fitted into the bearing portion. 4. A cylindrical body having a first cylindrical body having an eccentric circular hole, and a second cylindrical body rotatably fitted in the circular hole.
The pivot hinge according to claim 3, wherein the second hinge is provided with a bearing portion eccentric from the center thereof.