JP2906221B2 - Door 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 a door used for rotatably mounting a door on a door mounting frame of a building.

[0002]

2. Description of the Related Art A pivot hinge for a door includes a pivot attached to a door and a pivot receiving portion attached to a door attachment frame of a building and rotatably supporting the pivot. Are installed in pairs.

Conventionally, of the upper and lower pivot hinges, a pivot receiving portion of an upper pivot hinge has an opening on the front side,
What is formed by a frame side plate provided with a pivot hole into which the pivot can be fitted from the front side, and a pivot fixing plate detachably fixed to the front surface of the frame side plate and closing the opening of the pivot hole. Yes, the door installation operation can be performed in the following procedure.

First, a pivot attached below the door is
It falls into the pivot hole provided in the pivot receiving part attached below the door attachment frame. Next, the pivot mounted above the door is fitted from the front side into the pivot hole of the upper pivot receiving portion whose front side is opened by removing the pivot fixing plate. After that, the detached pivot fixing plate is fixed to the front surface of the frame side plate provided with the pivot hole, and the opening on the front surface of the pivot hole is closed, whereby the mounting operation is completed.

By the way, when such a door mounting operation is performed, the pivot above the door is provided above the door mounting frame until the pivot fixing plate is fixed to the front surface of the frame side plate with bolts or the like. The door may fall out of the opening on the front surface of the pivot hole and fall. For this reason, conventionally, there was a problem that, besides the worker fixing the pivot fixing plate, another worker for holding down the door so as not to fall down was required. Conventionally, there has been a pivot hinge which solves such a problem of the door mounting operation, that is, the door mounting operation can be performed by one worker (Japanese Patent Application Laid-Open No. HEI 4 (1994) -104605).
-97087).

[0006] As shown in FIGS. 5 and 6, the pivot hinge includes a temporary fixing metal 4 for temporarily fixing the pivot 3 to the lower surface of the frame-side plate 2 constituting the upper pivot receiving portion 1.
Is provided.

[0007] That is, the temporary fixing member 4 has a hook portion 5 at the tip, and is pivotally movable by a shaft 6 in a horizontal plane.
Mounted on Further, the hook 7 at the tip is urged by the spring 7 so as to close the opening of the pivot hole 8. The front end face of the temporary fixing member 4 is formed on an inclined surface toward the pivot hole 8, and when the pivot 3 is pressed against the hook 5 from the front side as shown in FIG.
However, when the pivot 3 is fitted in the pivot hole 8 by opening against the spring 7 and the pivot 3 is fitted in the pivot hole 8, as shown in FIGS. Is returned by the spring 7, and the opening of the pivot hole 8 is closed by the hook 5.

When the pivot 3 is fitted into the pivot hole 8 as described above, the pivot 3 and the hook 5 of the temporary fixing metal 4 are hooked, and the pivot fixing plate 9 is fixed to the front surface of the frame side plate 2. Before this, the pivot 3 is prevented from coming out of the pivot hole 8. Therefore, when fixing the pivot fixing plate 9 with bolts or the like, it is not necessary for an operator to hold down the door so that the door does not fall down. Become.

On the other hand, when the pivot 3 is to be removed from the pivot hole 8, the pivot fixing plate 9 is removed, and then the screw 10 screwed into the frame side plate 2 is used, as shown in FIG.
The temporary fixing member 4 is turned to open the front surface of the pivot hole 8.

[0010]

The use of a pivot hinge provided with the above-mentioned temporary fixing member 4 makes it possible for one worker to mount the door as described above.
There are also the following problems.

That is, since the temporary fixing member 4 is provided on the lower surface side of the frame side plate 2, even if the upper end of the pivot 3 is hooked on the hook 5 of the temporary fixing member 4, as shown in FIG. If the hook is small, the upper end of the pivot 3 does not sufficiently reach the pivot hole 8 of the frame side plate 2, and even if the pivot fixing plate 9 is fixed to the front surface of the frame side plate 2, the pivot 3 In some cases, the door cannot be completely fixed.
There is a possibility that the pivot 3 comes out of the pivot hole 8 and the door comes off.

Therefore, even if the pivot fixing plate 9 is fixed after the door is temporarily fixed during the door mounting operation, the door may not be securely mounted. In addition, adjustment such as fitting an adjustment washer into the lower pivot hinge and lifting the door upward was required.

Therefore, according to the present invention, the door can be temporarily fixed, and the door can be mounted by one worker.
In addition, if the temporary fixing can be performed, the pivot is fixed by the pivot fixing plate surely, and a pivot hinge that does not come out of the pivot after fixing the pivot fixing plate is provided.

[0014]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pivot mounted on an upper portion of a door and a pivot receiving portion mounted on an upper portion of a door mounting frame and rotatably supporting the pivot. The pivot receiving portion is formed by a frame side plate provided with a pivot hole having an open front side, and a pivot fixing plate detachably fixed to the front side of the frame side plate and closing the pivot hole. In the door pivot hinge, a temporary fixing plate having a locking hole large enough to fit the pivot is provided on the upper surface of the frame side plate, and the temporary fixing plate is connected to the frame side plate so as to be able to be pushed up, It is urged by a spring in the direction of pressing , and bent upward in front of the temporary fixing plate.
A curved guide portion is formed .

[0015]

First, the pivot attached to the lower part of the door is dropped into the pivot hole provided in the pivot receiver mounted below the door mounting frame, and then the pivot hole of the frame side plate constituting the upper pivot receiver. toward the opening of, and gradually fitted into the pivot attached to the upper side of the door, the pivot is temporarily stopped
A temporary fixing plate that hits the guide portion in front of the female plate and overlaps the upper surface of the frame side plate is pushed upward against the spring,
The pivot fits into the pivot hole, the upper end of the pivot fits into the locking hole of the temporary fixing plate, and the temporary fixing plate returns to a position where the upper surface of the frame side plate is pressed by the spring. In this manner, when the upper end of the pivot fits into the locking hole of the temporary fixing plate, even if the front surface of the pivot hole of the frame side plate is open, the pivot does not come out of the pivot hole, so that the pivot is removed from the pivot hole. There is no need to hold the door by hand to prevent it from falling out. Then, after this, if the pivot fixing plate is fixed to the front surface of the frame side plate, the frame side plate is located below the temporary fixing plate, so that the upper end of the pivot is hooked on the temporary fixing plate, If the pivot fixing plate is fixed to the frame-side plate, the pivot does not come out of the pivot hole formed in the frame-side plate.

[0016]

Embodiments of the present invention will be described below.

As shown in FIGS. 1 and 2, the door pivot hinge is installed on the upper and lower sides of the door end, and the door pivot hinge 11 of the present invention is installed above.

The pivot hinge 11 for a door according to the present invention comprises:
A pivot 12 is attached to the door A, and a pivot receiving portion 13 is attached to the door attachment frame B of the building and supports the pivot 12 rotatably.

The pivot 12 is a receiving bracket 1 provided on the top surface of the front end of a door-side plate 14 fixed to the door A.
5 so as to be rotatable. The receiving bracket 15 is installed on the door-side plate 14 so that the mounting position can be adjusted in the front, rear, left and right directions.

On the other hand, the pivot receiving portion 13 comprises a frame-side plate 16 fixed to the door mounting frame B, and a pivot fixing plate 17 detachably fixed to the front surface of the frame-side plate 16 by bolts 18. .

The frame side plate 16 is formed with a pivot hole 19 which is open on the front side and into which the pivot 12 can be fitted from the front side. The opening on the front surface of the pivot hole 19 is closed by the pivot fixing plate 17. It is supposed to be. Bolt holes 20 for bolts 18 for fixing the pivot fixing plate 17 are formed on the front surface of the frame side plate 16 on both sides of the opening of the pivot hole 19.

On the upper surface of the frame-side plate 16, a temporary fixing plate 2 having a locking hole 21 large enough to fit the pivot 12 is provided.
2 are superimposed. A guide portion 23 that protrudes toward the front side of the frame-side plate 16 and is bent upward is integrally formed in front of the temporary fixing plate 22.

The temporary fixing plate 22 is connected to a vertical connecting shaft 24 provided behind the pivot hole 19 of the frame side plate 16.
Are rotatably and liftably connected. A spring 25 for pressing the temporary fixing plate 22 against the upper surface of the frame-side plate 16 is mounted on the connection shaft 24.

A positioning recess 26 is formed behind the pivot hole 19 of the frame-side plate 16, a positioning projection 27 that fits into the positioning recess 26 is formed on the temporary fixing plate 22, and the positioning projection 27 is In the state where it is fitted into the frame, the locking hole 21 of the temporary fixing plate 22 and the frame side plate 1
6 and the pivot hole 19.

The operation of mounting the door using the pivot hinge of the present invention is performed in the following procedure.

First, the pivot mounted below the door A is dropped into a pivot hole provided in a pivot receiving portion mounted below the door mounting frame. Next, as shown in FIG. 4B, the pivot 12 attached above the door A is fitted toward the opening of the pivot hole 19 of the frame-side plate 16 constituting the upper pivot receiving portion 13. , Pivot 1
The upper end of 2 abuts on the guide portion 23 in front of the temporary fixing plate 22, and the temporary fixing plate 22 is lifted. Further, when the pivot 12 is pushed as it is into the pivot hole 19, the upper end of the pivot 12 is fitted into the locking hole 21 of the temporary fixing plate 22, and the temporary fixing plate 22 is moved by the spring 25 to the frame side plate 16.
Then, the pivot 12 is temporarily fixed in the pivot hole 19 by the temporary fixing plate 22. Thereafter, as shown in FIG. 4C, the mounting operation is completed by applying a pivot fixing plate 17 to the front surface of the frame-side plate 16 and fixing it with bolts 18.

Next, when removing the door A, after the pivot fixing plate 17 is removed, the front end of the temporary fixing plate 22 is lifted up, and the upper end of the pivot 12 is pulled out from the locking hole 21 of the temporary fixing plate 22. At the same time, the positioning projection 27 of the temporary fixing plate 21 is disengaged from the positioning concave portion 26 of the frame-side plate 16, and in this state, the temporary fixing plate 21 is rotated to a position where the locking hole 21 does not overlap the pivot hole 19, The pivot 12 is drawn forward from the opening at the front of the hole 19.

[0028]

As described above, in the pivot hinge according to the present invention, the temporary fixing plate for temporarily fixing the upper end of the pivot when mounting the door is provided on the upper surface of the frame side plate having the pivot hole having the front opening. Since the door is provided on the side, it is possible for one worker to perform the door installation work, and if the temporary fixing is possible, after the pivot fixing plate is fixed, the pivot does not come out of the pivot hole, Can be securely mounted.

[Brief description of the drawings]

FIG. 1 is an overall view showing a use state of a pivot hinge of the present invention.

FIG. 2 is a perspective view showing the same part.

FIG. 3 is a perspective view of the pivot hinge of the present invention, showing a state before the pivot is fitted into the pivot receiving portion.

4 (a), (b), and (c) are views showing a procedure for mounting a door using the pivot hinge of the present invention.

5 (a), 5 (b) and 5 (c) are bottom views showing a procedure for mounting a conventional pivot hinge.

FIG. 6 is a partial front view of a conventional pivot hinge.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Pivot hinge 12 Pivot 13 Pivot receiving part 14 Door side plate 15 Receiving bracket 16 Frame side plate 17 Pivot fixing plate 18 Bolt 19 Pivot hole 20 Bolt hole 21 Locking hole 22 Temporary fixing plate 23 Guide part 24 Connecting shaft 25 Temporary fixing plate 26 Positioning recess 27 Positioning protrusion

Claims (2)

(57) [Claims] 1. A pivot mounted on an upper part of a door, and a pivot receiving part mounted on an upper part of a door mounting frame and rotatably supporting the pivot, wherein the pivot receiving part is provided with a pivot hole whose front side is opened. In the door pivot hinge formed by the frame-side plate and a pivot fixing plate detachably fixed to the front surface of the frame-side plate and closing the pivot hole, a pivot fits on the upper surface of the frame-side plate. the size of temporary fixing plate forming an engaging hole of providing, the temporary stop plate as well as linked to push against the frame side plates, allowed biasing in the direction of pressing by the spring, in front of the temporary fixing plate, the upper Moor to bend
A pivot hinge for a door, wherein the hinge is formed with an id portion . 2. The temporary fixing plate is rotatably and liftably connected by a vertical connecting shaft provided behind the pivot hole of the frame side plate, and the locking hole of the temporary fixing plate and the frame side plate are connected. 2. A positioning projection and a positioning recess for locking the temporary fixing plate to the frame side plate at a position where the pivot hole overlaps with the pivot hole, and formed on one and the other of the temporary fixing plate and the frame side plate. The pivot hinge for a door as described.