JPH0778355B2 - Pivot hinge - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pivot hinge mounted on a hinged door and used as an opening / closing fulcrum.

2. Description of the Related Art In addition to a general hinge type hinge, a hinge for a door called a pivot hinge is used as an opening / closing fulcrum of a hinged door type door.

The pivot hinges are mounted above and below one side edge of the door body, and each has a pivot shaft. The two pivot shafts are located on the same axis, and the door body rotates about the both pivot shafts to open and close.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Generally, a building gradually deforms due to aging.
In particular, in the opening of the door or the like, the center portion is deformed downward and the upper corner portions are deformed outward due to the weight of the building.

Then, in the swing door type door as described above, the pivot shafts of the upper and lower pivot hinges are tilted and the axes are displaced from each other, which causes the door to tilt and hinders opening and closing.

The above problems are caused by one of the upper and lower pivot hinges,
Alternatively, it can be solved by adjusting the mounting positions of both pivot hinges, but the amount of adjustment of the mounting positions is extremely small and the work is difficult. It was mostly used in the state of.

Means for Solving the Invention The present invention has been made in view of the above problems, and a mounting bolt insertion hole (14) is formed by penetrating in the vertical direction, and the mounting bolt insertion hole (14) is formed above the mounting bolt insertion hole (14). A nut accommodating hole (15) is formed, and the mounting case insertion hole (14) and the nut accommodating hole (1
5) To the step with and downward, the concave spherical nut seat surface (1
6) is formed, and the pivot shaft mounting seat surface (13) having a concave spherical surface is formed upward on the lower surface of the mounting bolt insertion hole (14).
And a first base block (10) fixed to the opening edge of the entrance and exit and a pivot shaft insertion hole (23) penetrating in the vertical direction, and fixed to a hinged door (D). (2) The base block (20) and the upper end surface (31) are formed in a convex spherical shape toward the upper side corresponding to the pivot shaft mounting seat surface (13) of the first base block (10), and the central portion A bolt insertion hole (33) vertically penetrating therethrough, and a pivot shaft (30) rotatably supported via a bearing in the pivot shaft insertion hole (23) of the second base block, and the lower surface. A nut (17) that is formed in a downward convex spherical shape corresponding to the nut seat surface (16) and is housed in the nut housing hole (15) of the first base block (10), and the pivot. Bolt insertion hole (33) for shaft (30) and mounting bolt for first base block (10) The upper end surface (31) of the pivot shaft (30) is inserted into the hole (14) and screwed with the nut (17) housed in the nut housing hole (15) of the first base block (10) to move the upper end surface (31) of the first shaft to the first. The first base block (10) in pressure contact with the pivot shaft mounting seat surface (13) of the base block (10).
The second base block (20) and the pivot shaft (30)
And a mounting bolt (34) that is rotatably connected via a bolt insertion hole (1) of the first base block (10).
4) and the bolt insertion hole (33) of the pivot shaft (30) and the mounting bolt (34) with an annular gap.

Action Since the present invention has the above configuration, the pivot shaft (30) and the first base block (10) are integrally fastened together in the tightened state of the mounting bolt (34). The (30) is rotatably supported by the second base block (20) via a bearing, and the second base block (20) is attached to the door (D).
In a normal state, the door (D) is supported by holding a certain standing posture without tilting with respect to the first base block (10), and the opening / closing operation of the door (D) is performed by the first base block (10). It is smoothly performed between the (10) and the second base block (20) around the axis of the pivot shaft (30).

Then, when the door (D) is not properly erected, the mounting bolt (34) is loosened, and the upper end surface (3) of the pivot shaft (30) is loosened.
Release the pressure contact of 1) to the pivot shaft mounting seat surface (13) of the first base block (10) to separate the pivot axis (30) axis from the pivot shaft mounting seat surface of the first base block (10). With respect to (13), let the body swing freely, and in this state, adjust the upright angle of the door so that the centers of the upper and lower hinges coincide, and then refasten the mounting bolts (34) in this state. .

As a result, the pivot shaft (30) is pressed against the pivot shaft mounting seat surface (13) of the first base block (10) in a state of being tilted by the adjustment of the standing angle described above. At this time, the mounting bolt (34) is screwed with the nut (17) in the bolt insertion hole (33) of the pivot shaft (30) in an eccentric state within the range of the annular gap, and the nut (17) Is tightened while following the nut seat surface (16) and keeping the axis of the mounting bolt (34) parallel to the axis of the pivot shaft (30).
As described above, according to the present invention, the standing of the door can be adjusted by loosening the mounting bolt (34).

Embodiment FIG. 1 to FIG. 3 show an embodiment of a pivot hinge according to the present invention. The pivot hinge (A) is a first embodiment.
As shown in the figure, it is attached to the upper end of one side edge of the door body (D). The pivot hinge (A) is of a take-out suspension type in which the pivot shaft (30) is eccentric from the door body (D) by a predetermined distance as described later. Also,
At the bottom of one side edge of the door body (D), an automatic hinge (B) which is an automatic closing device is built in, and this automatic hinge (B)
A normal pivot hinge (H) integrally incorporated into the door main body (D) is projected from the lower end of the door body (D), and the pivot hinge (A) according to the present invention and the pivot hinge (H) of the auto hinge (B) are used. The door body (D) is supported so that it can be opened and closed.

The pivot hinge (A) is, as shown in FIGS. 2 and 3, a first base block (1) fixed to the upper frame (K) side.
0), the second base block (20) fixed to the door body (D) side, and the first and second base blocks (10) (2)
0) is rotatably connected to the pivot shaft (30), and the stop mechanism (40) is integrally incorporated between the second base block (20) and the pivot shaft (30).

In the first base block (10), a projection (12) for fixing the pivot shaft (30) is integrally connected to a rectangular parallelepiped mounting portion (11) for fixing to the upper frame (K). The mounting seat surface (13) of the pivot shaft (30) is formed on the lower surface of the protrusion (12).

The mounting seat surface (13) is the first base block (10).
The projection (12) is formed by recessing a predetermined depth in the lower surface. The mounting seat surface (13) is formed in a concave spherical shape facing upward. A bolt insertion hole (14) penetrating the protrusion (12) is formed in the center of the mounting seat surface (13), and the bolt insertion hole (14) is formed in the mounting seat surface (13). The serrations (13a) are radially formed so as to be substantially concentric.

The upper half portion of the bolt insertion hole (14) is a nut accommodation hole (15) having a hexagonal cross section, and is formed in a step portion between the bolt insertion hole (14) and the nut accommodation hole (15). A concave spherical spherical nut bearing surface (16) is formed downward. Then, in the nut receiving hole (15), a hexagonal nut (17) whose lower surface is formed into a spherical shape corresponding to the nut seating surface (16).
Is inserted and the upper opening of the nut receiving hole (15) is caulked to prevent the hexagon nut (17) from falling off. Here, the hexagon nut (17) can be swung with the lower surface in sliding contact with the nut seat surface (16), and when tightening the mounting bolt (34), which will be described later, the nut receiving hole (15) The inner corners are designed to prevent rotation.

The second base block (20) has a planar shape substantially similar to that of the first base block (10), and has a mounting portion (21) for fixing to the upper side edge of the door body (D) and the above. The projection (22) for rotatably mounting the pivot shaft (30) is integrally formed as one body.

The protrusion (22) of the second base block (20) is formed with a pivot shaft insertion hole (23) penetrating in the vertical direction, and the upper and lower openings of the insertion hole (23) respectively have bearings (main In the embodiment, metal bushes (24) (25) are arranged.

The upper end surface (31) of the pivot shaft (30) is formed into a convex spherical shape corresponding to the pivot shaft mounting seat surface (13) and corresponds to the serration (13a) of the mounting seat surface (13). A serration (31a) is also formed on the upper end surface (31) of the shaft (30), and the lower end of the pivot shaft (30) is a collar portion (32) having a slightly larger diameter. Then, in the central portion of the pivot shaft (30), a bolt insertion hole (3
3) is formed, and a hexagon socket head cap screw (hereinafter simply referred to as mounting bolt) (34) is inserted into the bolt insertion hole (33), and the bolt insertion hole (1) of the first base block (10) is inserted.
By screwing through the hexagon nut (17) via 4),
It is fixed to the first base block (10). In this state, the middle portion of the pivot shaft (30) is supported by the metal bush (24) and the collar portion (32) is supported by the metal funch (25), and therefore, the second base block (2).
The second base block (20) is rotatable with respect to the first base block (10) about the pivot shaft (30). Further, on the lower end surface of the pivot shaft (30), a predetermined number (two in this embodiment) of round holes (35) are formed at equal intervals around the bolt insertion hole (33). The round hole (35) is provided for the convenience of attaching the pivot shaft (30) to the first base block (10) as described later.

Further, in the pivot shaft (30) of this embodiment, a female screw portion (33a) which can be screwed into the mounting bolt (34) is formed in the middle portion of the bolt insertion hole (33), and the mounting bolt (34) is formed in the middle portion. Is made thinner than the threaded portion, and while screwing the mounting bolt (34), the bolt insertion hole (3
It is designed to be inserted into 3). Therefore, even if the screwed state between the mounting bolt (34) and the hexagon nut (17) is released, the screw thread of the mounting bolt (34) and the screw thread of the female thread portion (33a) of the bolt insertion hole (33). Since the and interfere with each other, the mounting bolt (34) is prevented from falling off the pivot shaft (30).

The stopper mechanism (40) includes a stopper roller (41) arranged on the pivot shaft (30) and a second base block (20).
And a spring (43) for elastically biasing the pressing roller (42) toward the pivot shaft (30).

The stopper roller (41) is fitted in a groove (36) axially formed in a central portion of the pivot shaft (30) in parallel with the pivot shaft (30), and the stopper roller (41) is ) Diameter is in this state the pivot shaft insertion hole (23)
The size is set so that it can be interposed between the inner wall and the inner wall.

The pressing roller (42) and the spring (43) are housed in a through hole (26) formed from the mounting portion (21) of the second base block (20) toward the pivot shaft insertion hole (23). Has been done.

The pressing roller (42) is housed in the through hole (26) so as to be parallel to the pivot shaft (30) while being pressed into the front surface of the washer (44). The spring (43) arranged on the rear surface side of the (44) urges the pivot shaft (30) side.

In the present embodiment, the spring (43) is formed by laminating a plurality of disc springs, and is used for the mounting portion (21) of the through hole (26).
The lid (45) screwed into the side opening and the washer (44) are in a compressed state.

The phase difference between the stopper roller (41) and the pressing roller (42) is a desired angle at which the stopper body (41) and the pressing roller (42) should stop and hold the door body (D) on the way. It is set so as to correspond to the position (90 ° in this embodiment).

In the figure, reference numerals (50) and (51) are respectively
A cover for covering the protrusions (12) and (22) of the first and second base blocks (10) and (20) to improve aesthetics and prevent dust is shown.

The function and operation of the pivot hinge (A) will be described below. In the initial state, the pivot shaft (30) of the pivot hinge (A) according to the present invention and the pivot shaft (P) of the auto hinge (B) side pivot hinge (H) are on the same axis. To do.

When the door body (D) closed by the auto hinge (B) is opened, the opening operation fixes the second base block (20) to the first base block (10) and the pivot shaft (30). ), And the pressing roller (42) on the side of the second base block (20) moves toward the pivot shaft (3
It comes into contact with the stopper roller (41) that is positioned and positioned in (0).

When the second base block (20) further rotates from this state, the pressing roller (42) abuts the stopper roller (41) and resists the elastic force of the spring (43) to penetrate the through hole (26). ), After passing over the stopper roller (41), it is again pressed by the spring (42) toward the pivot shaft (30).

When the opening operation of the door body (D) is centered in this state, the pressing roller (42) is engaged with the stopper roller (41) by the elastic force of the spring (43) as shown in FIG. Therefore, the door body (D) stops at the preset opening angle against the closing force of the automatic hinge (B).

When the door body (D) is released from the stopped state and the door body (D) is to be closed, the door body (D) is pressed in the closing direction, so that the pressing roller (42) receives the elastic force of the spring (43). On the contrary, the stopper roller (41) is overcome in the opposite direction to release the stopped state, so that the door body (D) is biased in the closing direction by the closing force of the automatic hinge (B). Moving.

The adjustment function of the pivot hinge (A) and the procedure thereof will be described below in the case where the opening to which the hinged door type door is attached is deformed due to the secular change of the building and the standing of the door is deteriorated. First, the second base block (20)
By removing the cover (51) from the protruding portion (22) of the and loosening the mounting bolt (34) of the pivot shaft (30),
The pressure contact state between the mounting seat surface (13) of the first base block (10) and the upper end surface (31) of the pivot shaft (30) is released.
In this embodiment, since the serrations (13a) (31a) are formed on the mounting seat surface (13) and the pivot shaft upper end surface (31), respectively, the mounting bolts (34) are attached to the serrations (13a) (31a). It is necessary to loosen until the engagement state of)) is released.

Then, in this state, the pivot shaft (30) is tilted at a desired angle with respect to the first base block (10) to adjust the standing state of the door, and then the pivot shaft (30) is rotated into the round hole (35). Tighten the mounting bolts (34) while using a tool such as a crab spanner to prevent rotation. Then, since the mounting seat surface (13) and the pivot shaft upper end surface (31) are spherical surfaces corresponding to each other, the mounting seat surface (13) and the pivot shaft upper end surface (31) are connected to each other by the tightening work. Is strongly pressed and fixed in surface contact. At this time, the hexagon nut (17) that is screwed into the mounting bolt (34).
Since the lower surface of the nut and the nut bearing surface (16) of the nut receiving hole (15) are spherical surfaces corresponding to each other, as the mounting bolt (34) is tightened, as shown in FIG.
7) slides on the nut seat surface (16) so that the axis (O) of the mounting bolt (34) is eccentric to the axis (O ′) of the pivot shaft (30) and is held in parallel. . That is, the mounting bolt (34) is attached to the bolt insertion hole (3) of the pivot shaft (30).
3) Bolt insertion hole (1) inside the first base block (10)
In 4), it can be eccentric by the amount of the annular gap, which allows the pivot shaft (30) after standing adjustment to be firmly tightened and fixed to the mounting seat surface (13) of the first base block (10). be able to. Although the lower surface of the hexagon nut (17) and the nut seating surface (16) do not strictly adhere to each other, the upper end surface (31) of the pivot shaft (30) is the mounting seat of the first base block (10). It is important that the entire surface is fixed in close contact with the surface (13), and if this condition is satisfied, the door (D) can smoothly open and close around the pivot shaft (30). So there is no problem.

After that, the work is completed by attaching the cover (51) to the projecting portion (22) of the second base block (20).

By the above work, the pivot shaft (30) of the pivot hinge (A) and the pivot shaft (P) of the auto hinge (B) side
Since and can be adjusted so as to be located on the same axis, the deteriorated door standing can be improved and the door can be smoothly opened and closed.

Next, the adjusting function and the adjusting procedure of the stop position in the stopper mechanism (40) of the pivot hinge (A) will be described.

First, the cover (51) is removed from the protrusion (22) of the second base block (20), and the mounting bolt (34) of the pivot shaft (30) is loosened to mount the first base block (10). The pressed state between the seat surface (13) and the upper end surface (31) of the pivot shaft (30) is released. In this embodiment, since the serrations (13a) and (31a) are formed on the mounting seat surface (13) and the pivot shaft upper end surface (31), the mounting bolts (34) are serrated (13a) (31a). It is necessary to loosen until the engagement state is released.

Then, in this state, using the round hole (35) of the pivot shaft (30), a tool such as a crab spanner is used to rotate the pivot shaft (30).
Is rotated by a predetermined angle with respect to the first base block (10). Next, the mounting bolt (34) is tightened while the pivot shaft (30) is prevented from rotating by the above tool, and the mounting seat surface (13) and the pivot shaft upper end surface (31) are pressed into contact and fixed. As described above, in this embodiment, since the serrations (13a) (31a) are formed on the mounting seat surface (13) and the pivot shaft upper end surface (31), both serrations (13a) (31a) are formed. ), The pivot shaft (30) is firmly prevented from rotating with respect to the first base block (10), and the pressing roller (4) of the stopper mechanism (40) is
It is possible to reliably prevent the pivot shaft (30) from rotating with respect to the first base block (10) due to the rotational direction force of when the second) passes over the stopper roller (41) and the mounting phase angle is deviated.

After that, the work is completed by attaching the cover (51) to the projecting portion (22) of the second base block (20).

By the above work, the engagement position between the stopper roller (41) and the pressing roller (42) of the stopper mechanism (40) is changed, and the door body (D) can be stopped at an appropriate desired position. it can.

Although the pivot hinge (A) according to the present invention is provided only on the upper end side of the door body (D) in the above-mentioned embodiment, the pivot hinge (H) on the auto hinge (B) side is also provided with the same. By applying the invention, the pivot shaft (30)
(P) can be adjusted so as to be more exactly on the same straight line, and the present invention can be applied to a pivot hinge regardless of the presence or absence of an auto hinge (B) or the like.

As described above, according to the pivot hinge of the present invention, the mounting angle of the pivot shaft with respect to the base block can be freely adjusted by loosening the mounting bolt. It is possible to improve the door installation in a very short time without changing the position and in a short time.

Furthermore, the pivot hinge according to the present invention has an extremely simple structure despite having the above-mentioned excellent effects, and therefore can be manufactured at low cost.

[Brief description of drawings]

1 to 3 show an embodiment of a pivot hinge according to the present invention. FIG. 1 is an overall perspective view showing a state in which the device of the present invention is attached to a door, and FIG. 2 is a view of the device of the present invention. FIG. 3 is a longitudinal sectional view, FIG. 3 is a lateral sectional view of the device of the present invention, and FIG. (10) …… First base block, (13) …… Mounting seat surface,
(20) …… Second base block, (30) …… Pivot shaft, (31) …… Pivot shaft upper end surface (spherical end surface),
(A) ... pivot hinge, (D) ... door body,

Claims (1)

[Claims] 1. A mounting bolt insertion hole (14) is formed so as to vertically penetrate therethrough, and a nut accommodating hole (15) is formed in an upper portion of the mounting bolt insertion hole (14), and the mounting bolt insertion hole (14) is formed. )
A concave spherical nut bearing surface (16) is formed downward on the step between the nut and the nut receiving hole (15), and a concave spherical surface is formed upward on the lower surface of the mounting bolt insertion hole (14). Forming a pivot shaft mounting seat surface (13) of the first base block (10) fixed to the opening edge of the entrance and exit, and a pivot shaft insertion hole (23) vertically penetrating,
A second base block (20) fixed to the hinged door (D), and an upper end surface (31) of the first base block (10) directed upwards corresponding to the pivot shaft mounting seat surface (13). Is formed into a convex spherical shape, and a bolt insertion hole (33) is vertically formed through the central portion, and is freely rotatable through a bearing in the pivot shaft insertion hole (23) of the second base block. Inside the nut receiving hole (15) of the first base block (10), the pivot shaft (30) that is supported and the lower surface of the first base block (10) are formed in a downward convex spherical shape corresponding to the nut seat surface (16). The nut (17) housed in, the bolt insertion hole (33) of the pivot shaft (30) and the mounting bolt insertion hole (14) of the first base block (10), and the first base block (10). The nut (17) housed in the nut housing hole (15) of the pivot shaft (3). 0)
The first base block (10) and the second base block (20) are connected to the pivot shaft (30) while the upper end surface (31) of the first base block (10) is in pressure contact with the pivot shaft mounting seat surface (13) of the first base block (10). ) And a mounting bolt (34) that is rotatably connected to each other via a bolt insertion hole (14) of the first base block (10), a bolt insertion hole (33) of the pivot shaft (30), and a mounting bolt (34). 34) A pivot hinge characterized by being configured with an annular gap existing between it and.