JP2578701B2 - Door 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 door hinge having a vertical and horizontal position adjustment function.

[0002]

2. Description of the Related Art A door hinge to which the present invention is directed is disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-16671 and Japanese Patent Laid-Open No. 3-187.
No. 486. In both cases, the vertical position of the door can be adjusted by vertically moving the hinge shaft or a female screw body meshing with the hinge shaft. In addition, the right and left position of the door can be adjusted by mounting the hinge plate to the door frame via the adjustment base and changing the distance between the hinge plate and the adjustment base or the mounting posture.

[0003]

The above-mentioned door hinge is
The vertical and horizontal position adjustment of the door with respect to the door frame can be performed, but this is merely an apparent position adjustment, and the hinge centers of the door hinges provided on the upper and lower sides of the door usually cannot be aligned. Had a problem.

For example, in the former conventional example, the upper and lower two adjustment screws are operated to change the distance between the hinge plate and the adjustment base so as to perform left and right adjustments. It is easy to make a difference in force, and the hinge axis is easily inclined slightly from the vertical line. Further, the upper and lower hinge axes are often inclined in different directions. For this reason, an excessive force acts on the hinge shaft and the bearing cylinder, causing abnormal wear on the sliding surfaces of both, and generating an unpleasant squeaking sound when the door is opened and closed. The latter conventional example is different from the above door hinge in that the right and left adjustment mechanism is different in that the entire hinge plate is tilted about a projecting wall provided on an adjustment base as a fulcrum. However, this also adopts a mode in which the hinge plate in the tilted state is fixed to the adjustment base with four fixing screws, so that the hinge axis is easily inclined vertically as in the former conventional example.

An object of the present invention is to enable the hinge shaft and the bearing cylinder to rotate relatively easily and comfortably even when the hinge axes of the individual hinge plates are inclined, whereby the hinge shaft and the bearing cylinder can be rotated. An object of the present invention is to provide a door hinge which can eliminate abnormal wear between the door hinge and the door and can also eliminate unpleasant squeaking noise when the door is opened and closed. Another object of the present invention is to provide a door hinge that can minimize the inclination of a hinge shaft during left-right adjustment.

[0006]

A door hinge according to the present invention comprises a pair of hinge plates 5, 6 and a pair of hinge plates.
A hinge shaft 7 for connecting the first and second members 5 and 6 so as to be swingable relative to each other;
Provided between the side hinge plate 6 and the hinge shaft 7
Vertical adjustment mechanism 8 for adjusting the position of hinge shaft 7 in the vertical direction
And a hinge provided between the door frame 2 and the hinge plate 6.
A horizontal adjustment mechanism 9 for adjusting the position of the shaft 7 in the left-right direction.
I have. The hinge plate 6 on the door frame 2 side is
It has an arc portion 22 that curves in an arc shape toward the door frame 2 side.
A hinge shaft 7 is supported above and below the lower half of the connecting end of the face wall.
Bearing cylinders 12 and 13 are provided. Upper bushing 1
A flange 17 is provided on the upper end of the hinge shaft 7 projecting upward from
And the upper shaft 27 are provided in order. The hinge shaft 7 is engaged with the flange 17.
Slide up and down on the connecting end of the hinge plate 6
The lock ring 18 is engaged with the lock ring 18 to hold it.
The vertical adjustment mechanism 8 is rotatably inserted into the lower bearing cylinder 13.
And is retained by a receiving cylinder 16 provided at the upper end of the bearing cylinder 13.
Female screw tube 15 and a shaft portion of the hinge shaft 7 projecting below the shaft portion.
And a screw shaft 14 that meshes with the female screw cylinder 15. Horizontal tone
The adjusting mechanism 9 sandwiches the arc portion 22 of the hinge plate 6 inside and outside.
An adjustment base 4 having a concave mounting seat 21;
Through the seat plate 23 having the
From the outer surface of the seat plate 23,
Screw 24 screwed into adjustment base 4 through hole 25
Consists of Bearing sleeve 11 of hinge plate 5 on door 1 side
The upper shaft 27 of the hinge shaft 7 fitted inside the
It is formed in a diameter smaller than the diameter,
And a fitting portion 28 that comes into contact with the inner surface of the first member in line contact. door
Assemble the hinge plate 5 on one side so that it can be tilted to the upper shaft 27
The lower surface of the bearing cylinder 11 via the lock ring 18.
It must be supported by the hinge shaft 7 .

[0007]

[Action] In assembled state, bushing 11 of the hinge plate 5 of the door 1 side is in contact with the shaft 27 and Sense' Furejo on the hinge shaft 7, so that the can tilt with respect to the upper shaft 27 . Therefore, even if the upper and lower hinge shafts 7 are inclined in different directions, the upper and lower bearing cylinders 11 on the door 1 side may be abnormally fitted to the corresponding upper and lower shafts 27 due to one-sided contact or misalignment of the axis. Can be fitted without any difficulty. That is, the pair of the upper and lower bearing cylinders 11 and the upper shaft 27 can be fitted in a state where the inclination of the hinge shaft 7 is absorbed in the respective fitting portions.
This inclination absorbing action is also effective against a shift in the mounting posture of the hinge plates 5 and 6.

[0008]

The door hinge of the Effect of the Invention The present invention, the bushing 11 of the hinge plate 5 of the door 1 side, which is fitted in Sense' touch state and a shaft 27 on the hinge shaft 7 supporting rotatably, Even if one of the upper and lower hinge shafts 7 is tilted or the upper and lower hinge shafts 7 are tilted, the tilt is determined by the bearing cylinder 11.
And the upper shaft 27 can be absorbed. Therefore, it is possible to wipe out the poor fitting caused by the inclination of the hinge shaft 7 and the bearing cylinder 11, and to rotate the two 7 and 11 relatively easily and lightly. This eliminates problems such as abnormal wear between the hinge shaft 7 and the bearing cylinder 11 and generation of unpleasant squeaking noise when the door is opened and closed, which has been a problem in the conventional door hinge having an adjusting function. A door hinge that can open and close the door can be obtained.

[0009]

1 to 3 show an embodiment of a door hinge according to the present invention. In FIG. 1, reference numeral 1 denotes a door, 2 denotes a door frame, 3 denotes a door hinge, and 4 denotes an adjustment base embedded and fixed in the door frame 2. The door hinge 3 includes a hinge plate 5 on the door 1 side, a hinge plate 6 on the door frame 2 side, a hinge shaft 7 for connecting the hinge plates 5 and 6 so as to be able to swing relatively, and a vertical position of the door 1. And a horizontal adjustment mechanism 9 for adjusting the left and right positions of the door 1.

On both hinge plates 5 and 6, bearing cylinders 11, 12 and 13 fitted to the hinge shaft 7 are formed by bending integrally. The bushing 11 on the door 1 side is provided on the upper half of the hinge plate 5 and the bushing 12 and 13 on the door frame 2 side.
Are formed on the lower half of the hinge plate 6 with a small vertical interval. As shown in FIG.
Are mounted on the upper and lower portions of the door frame 2 and support the bearing cylinder 11 on the door 1 side by the hinge shaft 7 attached to the bearing cylinders 12 and 13 on the door frame 2 side. The bearing sleeve 11 is assembled in a state where it is located above the bearing sleeves 12 and 13 on the door frame 2 side.

The vertical adjusting mechanism 8 is formed by using a screw as an adjusting element, and is provided between the hinge shaft 7 and the lowermost bearing cylinder 13. Specifically, the screw shaft 14 below the hinge shaft 7
Into the bearing cylinder 13 from below.
When the female screw cylinder 15 is screwed with a tool T, the entire hinge shaft 7 is moved up and down by holding the female screw cylinder 15 with a receiving cylinder 16 provided at the upper end of the bearing cylinder 13 so that it can only rotate freely. I can move. In order to prevent the hinge shaft 7 from rotating together when the female screw tube 15 is screwed, a hexagonal flange 17 is extended from the upper end of the shaft portion, and a lock ring 18 is fitted on the hexagonal flange 17, and the U-shape is formed. The groove 19 is engaged with the hinge plate 6 on the door frame 2 side (see FIG. 2). The load of the door 1 acts on the hinge shaft 7 via the lock ring 18 and the flange 17, and is received by the hinge plate 6 on the door frame 2 side via the screw shaft 14 and the female screw cylinder 15.

The horizontal adjustment mechanism 9 is provided between the hinge plate 6 on the door frame 2 side and the adjustment base 4, and swings the center of the hinge shaft 7 in the left and right direction as shown in FIG. The left and right adjustment of the door 1 is performed. Specifically, a mounting seat 21 having a concave arc surface is formed on the mounting surface of the adjustment base 4, and a projecting arc-shaped arc portion 22 that is in close contact with the mounting seat 21 is formed on the surface wall of the hinge plate 6. Seat plate 23 circumscribing the
And a screw 24 screwed into the adjustment base 4. A screw hole 25 passing through the arc portion 22 is formed to be horizontally long along the arc surface. When the screw 24 is loosened, the hinge plate 6 can be moved back and forth along the mounting seat 21. By this back and forth movement, the center of the hinge shaft 7 can move left and right along an arc locus Q centered on the center of curvature P of the mounting seat 21,
With this operation, the left and right adjustment of the door 1 can be performed. In FIG. 2, in order to clarify the moving direction of the hinge shaft 7, the trajectory of the bushing 12 is shown greatly separated from the left and right by imaginary lines. It is enough to move the center around a few mm left and right.

As described above, the bearing cylinder 11 on the door 1 rotates about the hinge shaft 7 as an axis. For example, as shown in FIG. 3, if the upper and lower hinge shafts 7 are inclined in different directions. ,
The bearing cylinder 11 and the hinge shaft 7 must be fitted in a twisted state. In order to avoid such a situation, the bushing 11
The upper shaft 27 of the hinge shaft 7 which fits with the bearing sleeve 11 is fitted in a line contact state. Specifically, as shown in FIG. 1, the diameter of the upper shaft 27 is set smaller than the inner diameter of the bearing cylinder 11, and a fitting portion 28 in the form of a partial sphere is formed at the upper end with the upper and lower apex portions removed. The diameter of the sphere of the fitting portion 28 is set to the same nominal size as the inner diameter of the bearing cylinder 11 so that an appropriate amount of fitting gap can be obtained. In FIG. 1, reference numeral 29 denotes an end cap.

As described above, when the bearing cylinder 11 is supported in a line contact manner by the fitting portion 28 provided on the upper shaft 27 of the hinge shaft 7,
Even if the upper and lower hinge shafts 7 are inclined in different directions as shown in FIG. 3, the inclination can be absorbed between the upper shaft 27 and the bearing cylinder 11, so that both 11 and 27 can be lightened without any resistance. Relative rotation.

Further, the mounting seat 21 has an arc surface around the vertical axis.
According to the horizontal adjustment mechanism 9 that moves the hinge plate 6 along the mounting seat 21 and adjusts the left and right positions, the screw 24 is arranged so that the arc portion 22 of the hinge plate 6 is in close contact with the mounting seat 21. Just by tightening, the center axis of the hinge shaft 7 can be correctly parallel to the curved center line of the mounting seat 21. Therefore, as long as there is no deviation in the mounting posture of the adjustment base 4, the center of the hinge shaft 7 can be prevented from being non-vertically inclined by performing the left-right adjustment.

FIGS. 4 to 7 show another embodiment in which the fitting structure between the upper shaft 27 and the bearing cylinder 11 is changed. In FIG. 4, the upper shaft 2
The fitting part 28 was provided by forming the entire upper part except the protruding base end of 7 into a tapered crown shape. In FIG. 5, the entire upper shaft 27 is formed in a tapered tapered shape, and the upper end thereof is
8 were provided.

[0017]

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a door hinge.

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

FIG. 3 is a front view showing an arrangement of a door, a door frame, and a door hinge.

FIG. 4 is a sectional view showing a modified example of a fitting structure between a hinge shaft and a bearing cylinder.

FIG. 5 is a cross-sectional view showing a modification of the fitting structure between the hinge shaft and the bearing cylinder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Door frame 3 Door hinge 4 Adjustment base 5.6 Hinge plate 7 Hinge shaft 8 Vertical adjustment mechanism 9 Horizontal adjustment mechanism 11 ・ 12 ・ 13 Bearing cylinder 27 Upper shaft 28 Fitting portion

Claims (1)

(57) [Claims] 1. A pair of hinge plates 5, 6 and both hinges
Hinge shaft 7 for connecting the plates 5 and 6 so that they can swing relative to each other
Between the hinge plate 6 and the hinge shaft 7 on the door frame 2 side.
Vertical adjustment to adjust the position of the hinge shaft 7 in the vertical direction
The mechanism 8 is provided between the door frame 2 and the hinge plate 6 to
A horizontal adjustment mechanism 9 for adjusting the position of the shaft 7 in the left-right direction is provided.
A in which the door hinge, hinge plate 6 of the door frame 2 side, the side of the door frame 2 on the wall
An arc portion 22 that curves in a protruding arc toward the surface wall.
Bearing hinge shaft 7 above and below the lower half of the connection end side
Shafts of hinge shaft 7 which are provided with tubes 12 and 13 and protrude upward from upper bearing tube 12
At the upper end, a flange 17 and an upper shaft 27 are provided in order, and the hinge shaft 7 engages with the flange 17 and the hinge plate 6
Ring 1 that slides up and down on the connecting end of
The vertical adjustment mechanism 8 is rotatably inserted into the lower bearing cylinder 13.
And is retained by a receiving cylinder 16 provided at the upper end of the bearing cylinder 13.
Female screw tube 15 and a shaft portion of the hinge shaft 7 projecting below the shaft portion.
The horizontal adjustment mechanism 9 moves the arc portion 22 of the hinge plate 6 inside and outside.
An adjustment base 4 having a concave arc-shaped mounting seat 21 sandwiched between
A seat plate 23 having an arcuate surface and a plurality of upper and lower portions of an arc portion 22
Left and right horizontal screw holes 25 and the outer surface of the seat plate 23
Screw that is screwed into the adjustment base 4 through the screw hole 25
24, which is fitted inside the bearing cylinder 11 of the hinge plate 5 on the door 1 side.
The upper shaft 27 of the flange shaft 7 is smaller than the inner diameter of the bushing 11.
It is formed in a diameter, and its upper part is in line contact with the inner surface of the bushing 11.
The hinge plate 5 on the side of the door 1 is tiltably attached to the upper shaft 27.
The lower surface of the bushing 11 is
A door hinge supported by a hinge shaft 7 via 8 .