JP2003343145A - Pivot hinge for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pivot hinge for a door preventing the tilting of the door 1 even when a screw 18 clamping and fixing a fixing member 15 to a sliding groove 14 is loosened in the case of the positioning of a pivot 7 and simply positioning the pivot 7. <P>SOLUTION: A pivot metal fitting 2 is supported to the vertical pivot 7 through an arm section 6b even when the fixing member 15 clamping and fixing the pivot 7 to the pivot metal fitting 2 is loosened by inserting a door receiving member 6 composed of a ring section 6a turnably fitted to the outer periphery of the pivot 7 and the arm section 6b projected from the ring section 6a and fixed to the pivot metal fitting 2 between a pivot bracket 4 and the pivot metal fitting 2, and the tilting of the door 1 is prevented. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door pivot hinge for rotatably supporting a door with respect to a door frame.

[0002]

2. Description of the Related Art In recent years, doors used in buildings and houses are
The size of the door tends to increase, and such a large door is supported by a pivot hinge so as to be openable and closable with respect to the building frame.

By the way, if the building frame is distorted or the mounting position of the pivot with respect to the building frame is incorrect, especially when the door is large, the gap between the door and the building frame may be vertical or horizontal. It is very different and unsightly, and it may interfere with the opening and closing of the door.

For this reason, it is necessary to adjust the position of the pivot during construction or after many years of use.

Conventionally, as a pivot hinge for a door whose position can be adjusted, there is the following structure.

The pivot hinge for a door of this kind is first of all
As shown in FIG. 7, the pivot 7 is supported by the pivot mounting brackets 2 mounted on the upper and lower sides of one side edge of the door and the pivot brackets 4 mounted on the building frame 3.

Then, the pivot mounting member 2 is provided with a pivot support hole 12, and the pivot supporting hole 12 is formed larger than the pivot 7 so that the pivot mounting member 2 can be moved around the pivot 7. By fixing the position of the pivot 7 in the pivot support hole 12 of the mounting bracket 2 with the fixing member 15, the relative positional relationship between the pivot mounting bracket 2 of the door 1 and the pivot receiving bracket 4 of the building frame 3 can be adjusted. I have to.

The pivot 7 is provided in the pivot support hole 12.
As a method of fixing the slide groove 14 with the fixing member 15, the slide groove 14 whose bottom surface is inclined around the pivot support hole 12 of the pivot mounting member 2 toward the center of the pivot support hole 12 is provided.
4 are formed on the front, back, left and right, and these four slide grooves 14
Has a through hole in the vertical direction and the bottom surface is the slide groove 1
The fixing member 15 is formed on the inclined surface corresponding to the bottom surface of the slide member 4 and has the tip end surface contacting the pivot 7 so as to be slidable relative to the slide groove 14.
The through hole of 5 has a long hole shape in the sliding direction, the screw 18 is inserted into the through hole of the fixing member 15, and the screw 18 is screwed into the screw hole formed on the bottom surface of the slide groove 14 to fix the fixing member 15. A method of tightening and fixing to the slide groove 14 is adopted.

That is, the fixing member 15 is attached to the slide groove 14
After loosening the screw 18 that has been fastened and fixed to one side, when one screw 18 is tightened, the fixing member 15 is pressed against the inclined surface of the slide groove 14 by the screw 18 and the pivot fitting 2 shifts. The movement causes the relative positions of the pivot mounting member 2 and the pivot 7 to be changed.

[0010]

As described above, in the conventional pivot hinge for a door, the position of the pivot 7 is adjusted by loosening the screw 18 for fastening and fixing the fixing member 15 to the slide groove 14. , By tightening.

However, when the position of the pivot 7 is adjusted, if the screw 18 that fastens and fixes the fixing member 15 to the slide groove 14 is loosened, the pivot support hole 12 is formed larger than the pivot 7. Therefore, there is a problem that the pivot mounting metal fitting 2 is largely tilted with respect to the pivot 7, as shown in FIG.

Therefore, conventionally, when the position of the pivot 7 is adjusted, the door 1 is prevented from inclining even if the screw 18 that fastens and fixes the fixing member 15 to the slide groove 14 is loosened. 1 needs to be lifted, and in addition to the operator who fixes the fixing member 15, the operator who lifts the door 1 is required, and there is a problem that the adjustment work requires time and skill.

Therefore, according to the present invention, when the position of the pivot 7 is adjusted, the door 1 is prevented from inclining even if the screw 18 fastening and fixing the fixing member 15 to the slide groove 14 is loosened so that the door 1 is not tilted. It is intended to provide a pivot hinge for a door that can easily adjust the position of 7.

[0014]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pivot mounting bracket 2 on the end face of a door 1.
Is provided, and the pivot support hole 12 is provided in the pivot fitting 2.
Is provided, and the pivot 7 is inserted into the pivot support hole 12 so as to be movable back and forth and left and right, and the fixing member 15 for fastening and fixing the pivot 7 in the pivot support hole 12 to the pivot mounting metal fitting 2 is provided. A pivot hinge for a door that rotatably supports a pivot 7 fixed by a pivot receiving metal fitting 4 provided on a building frame 3, in the outer periphery of the pivot 7 between the pivot receiving metal fitting 2 and the pivot mounting metal fitting 4. A ring portion 6a that is rotatably fitted
Then, the door receiving member 6 including the arm portion 6b protruding from the ring portion 6a and fixed to the pivot mounting member 2 is inserted.

Since the ring portion 6a of the door receiving member 6 is fitted on the outer periphery of the pivot 7, even if the pivot mounting member 2 is inclined, the pivot mounting member 2 is supported by the pivot 7 by the arm portion 6b. It

Therefore, even if the fixing member 15 which is fastened and fixed to the pivot mounting member 2 is loosened, the door 1 does not tilt because the pivot mounting member 2 is supported by the pivot 7 via the arm portion 6b.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.

A pivot metal fitting for a door according to the present invention is
As shown in FIG. 1, a pivot mounting bracket 2 mounted above and below one side edge of a door 1, a pivot mounting bracket 4 mounted on a building frame 3, a pivot mounting bracket 2 and a pivot mounting bracket 4
And a pivot 7 supported by.

The pivot mounting member 2 comprises a rectangular mounting portion 8 along the upper and lower end surfaces of the door 1 and an arm portion 9 integrally formed so as to project laterally from the mounting portion 8.
The mounting portion 8 is formed with a screw insertion hole 11 through which a screw 10 for fixing the mounting portion 8 to the door 1 is inserted.

A square pivot support hole 12 is formed in the arm portion 9 so as to penetrate the arm portion 9 in the vertical direction.
The pivot support hole 12 is formed to be larger than a support shaft 13 of the pivot 7, which will be described later, and the support shaft 13 is movable in the pivot support hole 12. Around the pivot support hole 12 on the upper surface of the arm portion 9, four slide grooves 14 having a bottom surface inclined toward the center of the pivot support hole 12 are formed in front, rear, left and right. Front and rear slide grooves 14
Is provided in the direction orthogonal to the door 1, that is, in the direction of the short side of the rectangular mounting portion 8, and the left and right slide grooves 14 are provided.
Is provided parallel to the door 1, that is, in the direction of the long side of the rectangular mounting portion 8.

A fixed member 15 having a through hole 16 in the vertical direction is fitted in the slide groove 14 so as to be slidable relative to the slide groove 14. The bottom surface of the fixing member 15 is formed as an inclined surface corresponding to the bottom surface of the slide groove 14, and the surface of the fixing member 15 is parallel to the surface of the arm portion 9 when the fixing member 15 is fitted in the slide groove 14. It is supposed to become. In addition, the fixing member 15
Through-hole 16 is formed in a long hole shape in the sliding direction,
The tip end surface of the fixing member 15 comes into contact with the support shaft 13 of the pivot 7 inserted into the pivot support hole 12.

A screw hole 1 is formed on the bottom surface of the slide groove 14.
7 are formed in the vertical direction. When the screw 18 is screwed into the screw hole 17 through the through hole 16 of the fixing member 15, the head of the screw 18 engages with the surface of the fixing member 15 and the fixing member 15 is fixed to the slide groove 14. . When the screw 18 is tightened, the fixed member 15 is pressed against the inclined surface of the slide groove 14, whereby the screw 18 in the through hole 16 is pushed against the fixed member 15 together with the support shaft of the pivot mounting member 2 and the pivot 7. 13 and relative shift.

The pivot 7 installed in the pivot support hole 12 includes a square pillar-shaped support shaft 13 which is inserted into the pivot support hole 12 from the back surface side, and an engaging portion 19 which abuts on the back surface of the pivot mounting member 2. The bearing 20 is supported by the pivot bracket 4 of the building frame 3 and is rotatable with respect to the support shaft 13 and the engaging portion 19.

Notches 21 are provided at four positions in the engaging portion 19 so that the tip of the screw 18 does not hit the engaging portion 19 when the screw 18 is screwed into the screw hole 17 of the slide groove 14. Is forming.

On the other hand, the pivot receiving metal fitting 4 attached to the building frame 3 is formed of metal plates which are vertically spaced apart from each other, and the bearing portion 20 of the pivot 7 attached to the pivot attaching metal fitting 2 of the door 1 is in front. It is composed of a pair of bifurcated receiving claws 22a and 22b fitted from the side, and a closing metal fitting 23 mounted between the metal plates. Pivot bracket 4
Is fixed to the building frame 3 with screws 5.

The closing fitting 23 is a bearing portion 20 of the pivot 7.
Is located outside the pair of receiving claws 22a and 22b in a state before being fitted between the receiving claws 22a and 22b of the pivot receiving bracket 4. The pair of receiving claws 22 is rotated by the bearing 20 of the pivot 7 being pushed rearward as the bearing 20 of the pivot 7 is fitted between the receiving claws 22a and 22b and being rotated rearward.
The openings of a and 22b are closed from the front side, and the pair of receiving claws 2
The bearing portion 20 of the pivot 7 is formed by the inner surfaces of 2a and 22b.
It is designed to be sandwiched around and supported.

A door receiving member 6 is inserted between the pivot mounting member 2 and the pivot receiving member 4.

The door receiving member 6 is a bearing portion 20 of the pivot 7.
The ring portion 6a is rotatably fitted into the outer periphery of the arm portion 6b, and the arm portion 6b is provided so as to project from the ring portion 6a and fixed to the pivot mounting member 2. The ring portion 6 a is sandwiched between the back surface of the engaging portion 19 of the pivot 7 and the front surface of the pivot bracket 4. The arm portion 6b is formed by bending the ring portion 6a by the thickness of the engaging portion 19 of the pivot 7.

A long hole 6c is formed at the tip of the arm portion 6b. The arm portion 6b is passed through the elongated hole 6c.
Are fixed to the back surface of the pivot mounting member 2 with bolts 24. Note that reference numeral 25 indicates a washer.

The door receiving member 6 has the ring portion 6a fitted on the outer periphery of the pivot 7, and even if the door receiving member 6 is inclined with respect to the pivot receiving metal fitting 4, it is supported by the pivot 7 fixed vertically to the pivot receiving metal fitting 4. Therefore, the pivot mounting member 2 does not tilt with respect to the pivot receiving member 4.

Therefore, even if the fixing member 15 which is fastened and fixed to the pivot mounting member 2 is loosened, the load of the door 1 is supported by the vertical pivot 7 through the pivot mounting member 2 and the arm portion 6b, so that the door is closed. 1 does not lean.

With the pivot metal fitting for a door according to the present invention, which is constructed as described above, the position of the pivot 7 can be adjusted as follows.

When the position of the pivot 7 is adjusted, first, the arm portion 6 of the door receiving member 6 fixed to the end surface of the door 1.
Loosen the bolt 24 of b.

Next, for example, when the door 1 is moved in the left-right direction so as to be separated from the side building frame 3, the screw 18 of the fixing member 15 fitted in the front and rear slide grooves 14 is slightly loosened. , The fixed state of the support shaft 13 of the pivot 7 by the front and rear fixing members 15 is released, and then the left and right fixing members 15 are located on the side of the building frame 3, that is, on the side opposite to the direction in which the door 1 is to be moved. The fixing member 1 located in the direction in which the door 1 is to be moved by loosening the screw 18 of the fixing member 15
When the screw 18 of 5 is tightened, the fixing member 15
Is pressed against the inclined surface of the slide groove 14, and the door 1 moves together with the pivot mounting member 2. After that, when the screws 18 of the loosened fixing members 15 are tightened, the fixing members 15 strongly contact the support shaft 13 of the pivot 7 from four directions,
Support shaft 13 for pivot 7 in pivot support hole 12
There is no relative movement of. Further, the loosened bolt 24 is tightened to fix the arm portion 6b of the door receiving member 6 to the pivot attachment fitting 2. The fixed position of the support shaft 13 of the pivot 7 in the pivot support hole 12 and the fixed position of the support shaft 13 of the door receiving member 6 and the pivot 7 are shown in FIG.
This is as shown in (b) and (c).

Even if the bolt 24 fixing the arm portion 6b of the door receiving member 6 to the pivot mounting member 2 is loosened during the position adjustment, the ring portion 6a of the door receiving member 6 is located on the outer periphery of the pivot 7. Because it is fitted, as described above,
Door 1 does not tilt.

Therefore, since the door receiving member 6 can prevent the door 1 from tilting during the position adjusting work, even if there is only one worker, the screws 18 of the four fixing members 15 can be loosened or tightened. Thus, the relative position of the support shaft 13 of the pivot 7 in the pivot support hole 12 can be easily moved in any of front, rear, left and right directions.

[0037]

As described above, according to the present invention, when the position of the door is adjusted, the door does not tilt even if the fixing member for fixing the pivot is loosened. Therefore, the position of the door with respect to the building frame can be adjusted. It can be done easily and accurately.

[Brief description of drawings]

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

FIG. 2 is a partial perspective view of the above.

FIG. 3 is an exploded perspective view of a door pivot hinge according to the present invention.

4 (a), (b) and (c) are plan views showing a fixed position of a pivot support shaft in a pivot support hole of a door pivot hinge according to the present invention.

FIG. 5 is a perspective view of a pivot hinge for a door according to the present invention, which is mounted below a door.

6 is a sectional view taken along the arrow in FIG.

FIG. 7 is a cross-sectional view showing a problem of a conventional pivot hinge for a door that does not use a door receiving member.

[Explanation of symbols]

1 door 2 Pivot mounting bracket 3 building frames 4 Pivot bracket 5 screws 6 Door support member 6a Ring part 6b Arm part 6c long hole 7 pivot 8 Mounting part 9 Arm part 10 screws 11 screw insertion hole 12 Pivot support hole 13 Support shaft 14 slide groove 15 Fixing member 16 through holes 17 screw holes 18 screws 19 Engagement part 20 Bearing 21 notches 22a, 22b Receiving claw 23 Closure bracket 24 Volts 25 washers

Claims (2)

[Claims] 1. A pivot mounting metal fitting is provided on an end surface of a door,
A pivot support hole is provided in this pivot mounting bracket, a pivot is inserted into this pivot support hole so that it can move back and forth, left and right, and a fixing member for tightening and fixing the pivot in the pivot support hole to the pivot mounting bracket is provided. In a pivot hinge for a door that rotatably supports a pivot fixed by a member on a pivot receiving metal fitting provided on a building frame, a ring member is rotated around the pivot outer periphery between the pivot receiving metal fitting and the pivot mounting metal fitting. A pivot hinge for a door, which is freely fitted and has an arm portion projectingly provided on the ring member, and the arm portion is fixed to a pivot fitting. 2. A support shaft into which the pivot is inserted into a pivot support hole of a pivot attachment fitting on an end face of a door,
It is formed by an engaging portion that engages with a bearing provided on the pivot receiving metal fitting of the building frame, and the pivot support hole is formed to be larger than the pivot support shaft to move the pivot mounting metal fitting around the pivot support shaft. It is possible to construct a slide groove around the surface of the pivot mounting hole on the front side of the pivot mounting hole, the bottom surface of which is inclined toward the center of the pivot supporting hole.
A fixing member that has through holes in the vertical direction in the four slide grooves, has a bottom surface formed on an inclined surface corresponding to the bottom surface of the slide groove, and has a tip end surface that abuts the support shaft of the pivot. It is fitted so that it can slide relative to the slide groove, the through hole of the fixing member is made into a long hole shape in the sliding direction, a screw is inserted into the through hole of the fixing member, and this screw is formed on the bottom surface of the slide groove. The pivot hinge for a door according to claim 1, wherein the fixing member is tightened and fixed to the slide groove by being screwed into the screw hole.