JPH08210013A - Door equipped with pivot hinge - Google Patents

Abstract

PURPOSE: To embody a strong fitting structure of a door body to be fitted to a door-fitting frame in which the fitting of the door body to the door-fitting frame is easy, and also the occurrence of backlash in the pivot of the door body at the time of opening or closing of the door can be prevented. CONSTITUTION: An upper hinge body 1 and a lower hinge body 2 are fitted to the upper part of a door fitting frame 18 and to the corresponding plate of a door body 22 respectively. A pivot 2 is turnably fitted to a lower hinge body 21 through a bearing 23. A cutout-shaped pivot receiving part 1c to which the pivot 2 is fitted without a clearance when it is moved in the lateral direction is formed to the upper hinge body 1. The upper hinge body 1 is provided with a stopper by which the lateral coming-off of the pivot 2 being fitted in the pivot receiving part 1c can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door in which a door body is openably and closably attached to a door attachment frame via a pivot hinge, and more particularly to a structure for attaching the upper portion of the door body to the door attachment frame.

[0002]

2. Description of the Related Art A conventional upper pivot hinge for mounting a door is provided with a screw hole for fitting a pivot on a lower hinge body mounted on a door body, while a circular hole is formed on an upper hinge body mounted on a door mounting frame. Provided, one operator supports the door body, and the circular hole and the screw hole are aligned,
Another operator screwed the pivot having the thread groove on the outer periphery into the screw hole from below so as to project it upward, so that the part of the pivot upper portion not provided with the thread groove was fitted into the circular hole. Was there.

As a conventional structure for attaching a door body to a door attachment frame by means of a pivot hinge, Japanese Patent Laid-Open No. 1-260187 is known.
In the gazette, a pivot mounted on a bracket provided on the upper part of the door body is rotatably mounted via a bearing so that the pivot is projected upward. On the other hand, a bracket provided on the door mounting frame has a downward diameter larger than the pivot. Circular recess is provided, the upper part of the pivot is fitted into the circular recess, and a bolt is inserted into a hole penetrating the center of the pivot, and the bolt is passed through the door mounting frame side bracket to be a nut. It is disclosed that the pivot is coupled to the door mounting frame by tightening, and that the inclination of the circular concave portion with respect to the pivot is adjusted and tightened by the bolts and nuts to adjust the building. .

[0004]

Among the conventional doors using the pivot hinges, the former has a problem that it takes a lot of time to install the door body.

Also, in the latter case, that is, in the door described in the above publication, similarly, the metal touch bearing provided in the door body and the circular recess provided in the bracket attached to the door mounting frame are aligned with each other, and their positions are set. In the aligned state, insert the pivot into the bearing, fit the top of the pivot into the circular recess, insert the bolt into the hole at the center of the pivot, and screw it into the nut. .

Further, in the door described in the above publication, there is a clearance between the pivot and the circular recess of the bracket attached to the door mounting frame, and there is also a clearance between the inner surface of the metal-touch bearing and the pivot. , Tilt is likely to occur due to opening and closing of the door, and at the time of mounting, the tilt of the pivot with respect to the circular concave portion is not fixed until the bolt is tightened to the nut, which requires careful mounting.
There is a problem that the door body may rattle when the door is opened and closed due to the loosening of the bolts due to the passage of the usage period.

On the basis of this background, the present invention makes it easy to attach the door body to the door mounting frame, and there is no risk of rattling of the pivot of the door body when the door is opened and closed.
An object of the present invention is to provide a door provided with a pivot hinge that can realize a firm attachment structure of a door body to a door attachment frame.

[0008]

In order to achieve the above object, the present invention is a door in which a door main body is attached to a door attachment frame by a pivot hinge so as to be openable and closable. An upper hinge main body is attached to a portion of the frame corresponding to the lower hinge main body, a pivot is rotatably attached to the lower hinge main body through a bearing, and the pivot is moved laterally to the upper hinge main body to provide clearance. It is characterized in that a notch-shaped pivot receiving portion that is fitted without a hole is provided, and a stopper that prevents the pivot fitted in the pivot receiving portion from coming off in the lateral direction is provided.

[0009]

In the present invention, when mounting the door body,
The pivot provided on the lower hinge body previously attached to the door body is fitted into the notched pivot receiving portion provided on the upper hinge body attached to the door mounting frame by lateral movement, but the door body Since the pivot is rotatably attached to the lower hinge main body that is attached to the lower hinge main body via the bearing, the pivot is fitted into the notched pivot receiving portion without clearance, and the stopper can be easily attached.

Further, since the pivot is tightly fitted in the pivot receiving portion without clearance, the door body does not rattle when opening and closing.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing an example of an upper hinge main body attached to a door attachment frame in a pivot according to the present invention,
2 is an exploded perspective view showing an example of a lower hinge main body attached to the door main body, FIG. 3 (A) is a partially cutaway side view showing a state where the pivot hinge is attached to the door attachment frame and the door main body, FIG. 4B is a plan view showing how the upper hinge body is attached to the door mounting frame, FIG. 4A is a plan view showing how the lower hinge body is attached to the door body, and FIG. 5A is a partially cutaway plan view showing the coupling structure of the pivot and the pivot receiving portion in the completed mounting state, FIG. 5B is a partially cut side view thereof, and FIG. FIG. 6A is a bottom view showing the operation of the locking claws in the mounting work, and FIG. 6B is a bottom view showing the working state in which the pivot locking state by the locking claws is released.

In FIG. 1, reference numeral 1 denotes an upper hinge body, which has a mounting portion 1b having a screw hole 1a, and a pivot-shaped receiving portion 1c having a notch on the opposite side of the mounting portion 1b. Is provided. As shown in FIG. 6A, the pivot receiving portion 1c is composed of a semicircular portion a having an inner diameter substantially matching the diameter of the pivot 2 and a linear groove portion b extending from the semicircular portion to the opening. Also, the pivot receiving portion 1c
Is provided with a stopper mounting surface 1d by removing the upper surface from the semicircular portion a to the opening, and the stopper mounting surface 1d is provided.
As shown in FIG. 5 (A), a fastener 3 having an arc-shaped pivot receiving surface 3a is made of an elastic material by screwing a screw 4 into a screw hole 1e provided in the fastener mounting surface 1d. It is fixed via the washer 5.

Reference numeral 6 is a locking claw provided as a temporary fixing means for the pivot 2. The locking claw 6 is rotatably attached by fitting a circular hole 6e of the locking claw 6 into a shaft 1f protruding from the bottom surface of the upper hinge body 1. The locking claw 6
Has a U-shaped pivot holding portion 6a, and a projecting piece 6b projecting upward in the middle part of the locking claw 6 has a larger diameter than the projecting piece 6b drilled on the bottom surface of the upper hinge body 1. In the range in which the protruding piece 6b can be moved in the hole 1g,
The locking claw 6 can rotate around the shaft 1f.

Reference numeral 7 is a spring for pressing the locking claw 6 in the pivot locking direction. The spring 7 is formed in a hole 1h formed in the bottom surface of the upper hinge body 1 as shown in FIG. 6 (A). It is accommodated and one end is hooked on the edge of the hole 1h and the other end is hooked on the locking claw 6 so that a spring force acts on the locking claw 6. Tip 6 of locking claw 6
c is formed in a hook shape so as to lock the pivot 2, and the front end surface 6d is formed into a slanted surface which is a straight line or a curved surface so as to be opened sideways when being pushed into the pivot receiving portion 1c. Has been done.

Reference numeral 8 denotes a lock releasing screw which is screwed into a screw hole 1i provided from a side surface of the upper hinge main body 1 to a hole 1g into which the pin 6b of the locking claw 6 is inserted.
As shown in (B), when the screw 8 is screwed deeply, the screw 8
When the tip of the pushes the protrusion 6b, the locking claw 6 moves to the shaft 1f.
It rotates in the opening direction (direction B in FIG. 6 (A)) against the force of the spring 7 around the center.

Reference numeral 9 is a pressing plate for sandwiching the locking claw 6 with the bottom surface of the upper hinge main body 1, and the pressing plate 9 is screwed into a screw hole 1j provided in the bottom surface of the upper hinge main body 1. Hole 9 fixed by
By fitting a to the shaft 1f, it is attached to the bottom surface of the upper hinge main body 1 by sandwiching it without interfering with the rotation of the locking claw 6, as shown in FIG. 5 (B). The holding plate 9
Has a notch 9b having substantially the same shape as that of the pivot receiving portion 1c so as not to obstruct the pushing of the pivot 2 from the side.

Reference numerals 12 and 13 denote an upper cover and a lower cover provided for improving the aesthetics. The upper cover 12 has a plate-like shape and has a screw hole 1m so as to cover the upper surface of the upper hinge body 1 except the mounting portion 1b. It is attached by a screw 14 that is screwed into. The lower cover 13 is passed through the through hole 9c provided in the pressing plate 9 so as to cover the bottom surface, side surface, and front surface of the upper hinge body 1 other than the mounting portion 1b, and the screw hole 1k on the bottom surface of the upper hinge body 1. It is attached by screwing screws 15. Since the lower cover 13 fits the pivot 2 into the pivot receiving portion 1c and attaches the stopper 3 and then attaches with the screw 15, the notch 1 through which the pivot 2 passes
3a is provided.

The upper hinge body 1 is shown in FIGS.
As shown in (B), the screw 20 inserted into the upper frame 19 of the door mounting frame 18 is screwed into the screw hole 1a of the mounting portion 1b for mounting.

In FIG. 2, reference numeral 21 denotes a lower hinge main body to be attached to the door main body 22, and the lower hinge main body 21 is fitted in a hole 21a provided in the lower hinge main body 21, as shown in FIG. 3 (A). The pivot 2 is rotatably attached to the bearing 23. The lower hinge main body 21 is configured to be adjustable in the door body surface direction X (see FIG. 4A) of the door main body 22 in order to adjust the mounting position of the door main body 22 with respect to the door mounting frame 18. There is.
That is, the mounting plate 25 fixed to the upper surface of the door body 22 with the screw 24 has a forked portion 25a at the end, and the head of the adjusting screw 26 is rotatable in the forked portion 25a and axially. Is immovably engaged with the lower hinge main body 21, and the adjusting screw 26 is screwed into the screw hole 21c provided in the mounting portion 21b of the lower hinge main body 21, and the adjusting screw 26 is turned to thereby lower the lower hinge main body 2
1 by adjusting the position of the lower hinge main body 21 in the X direction, and by inserting the fixing bolt 27 into the elongated hole 21d provided in the mounting portion 21b and screwing it into the screw hole provided in the mounting plate 25. The structure is adjusted in the X direction of FIG. 4A and fixed to the upper surface of the door body 22. Two
Reference numeral 8 denotes a cover attached to the lower hinge main body 21 with screws 29.

This pivot hinge comprises an upper hinge body 1
The upper hinge body 1 with the upper cover 12, the lower cover 13 and the stopper 3 not attached to the upper frame 1 of the door mounting frame 18.
9 as shown in FIG. 3 (B), while the lower hinge body 2
1 also attaches a plate 25 to the door body 22 with the fixing bolt 27.
And a pivot hinge (not shown) below the door main body 22 is attached by, for example, the conventional mechanism described above, and the arrow A in FIGS. 4 (B) and 6 (A) is used.
The upper portion of the door body 22 is moved in the direction to fit the pivot 2 into the pivot receiving portion 1c of the upper hinge body 1.

Such a pivot 2 is attached to the pivot receiving portion 1c.
The fitting work for fitting to can be done by one person, and then the stopper 3
The screwing work can be done by one person.

Further, in the present invention, since the pivot 2 is rotatably attached to the lower hinge main body 21 via the bearing 23, the pivot 2 is rotatably fitted to the pivot receiving portion 1c. Since it is not necessary, they can be strongly fitted together without clearance, and the door body 22 can be held in a vertical posture even when the hand is released from the door body 22. Easy to install.

Conventionally, the pivot cannot rotate with respect to the circular hole unless there is some clearance between the pivot and the circular hole into which the pivot is inserted.
Currently, a clearance of 5 mm is provided. As a result, there is a problem that the door body 22 rattles when the door body is opened and closed due to the existence of this clearance. However, by mounting the pivot 2 via the bearing 23 as in the present invention, Since no clearance is required, rattling does not occur when the door body 22 is opened and closed. Further, as described in the above-mentioned publication, when the pivot and the bracket are connected by tightening the bolt and the nut, rattling may occur due to the looseness of the bolt. The pivot receiver 1
Since the structure is closely fitted to c, the problem of rattling due to the passage of use time does not occur.

Further, as shown in the plan view of FIG.
In the plan view, the direction D of the pivot receiving portion 1c is set to be inclined with respect to the door mounting frame 18 (θ ≠ 90 degrees), and therefore, as shown in FIG. After the door body 22 is inclined at an angle of α, that is, the door body 22 is tilted so as to be perpendicular to the pivot receiving portion 1c and the pivot 2 is fitted to the pivot receiving portion 1c, as shown in FIG. When the door main body 22 is parallel to the door mounting frame 18, that is, when the door main body 22 is in the closed posture, the movement of the door main body 22 toward the outdoor side as shown by the arrow E,
The fitting between the pivot 2 and the pivot receiving portion 1c becomes resistance,
The fall of the door main body 22, that is, the movement of the pivot 2 to be disengaged from the pivot receiving portion 1c is more reliably prevented together with the fact that the pivot 2 is tightly fitted to the pivot receiving portion 1c.

Further, in this embodiment, since the locking claw 6 is biased by the spring 7 so as to be rotatable about the shaft 1f, and the tip surface 6d is formed as an inclined surface.
As shown in FIG. 6 (A), when the pivot 2 is pushed in, the locking claw 6 rotates about the shaft 1f against the spring 7 as shown by the arrow B, and the locking claw 6 is opened. The pivot 2 enters the inner part of the pivot receiving portion 1c, and the locking claw 6 is returned to the locking position by the force of the spring 7 as shown in FIG.
Since the door 2 is locked and prevented from coming off, the pivot 2 is completely prevented from coming off regardless of the direction of the door body 22, and the safety of work is improved. In this state, the fastener 3 is fixed to the stopper mounting surface 1d with the screw 4 via the washer 5, whereby the pivot 2 is fixed. Then, the upper and lower covers 12 and 13 are attached to the upper hinge body 1, and the cover 28 is also attached to the lower hinge body 21 with screws 29.

In the mounting work described above, in the present invention, since the pivot 2 is mounted on the door body 22 side and the notch-shaped pivot receiving portion 1c is provided on the door mounting frame 18 side, the operator receives the pivot receiving portion 1c. It is easy to see, and the pivot 2 can be easily fitted into the pivot receiving portion 1c.

Further, since the notch-shaped pivot receiving portion 1c is provided on the door mounting frame 18 side, the mounting surface 1d of the stopper 3 is attached.
Can be set to be parallel or nearly parallel to the door mounting frame 18, that is, the direction in which the worker faces, and the attachment of the stopper 3 becomes easy.

When removing the door body 22 from the door mounting frame 18, the lower cover 13 is removed, and as shown in FIG.
By screwing the screw 8 deeply, the tip of the screw 8 pushes the projecting piece 6b, thereby rotating the locking claw 6 in the opening direction (B direction) about the shaft 1f against the force of the spring 7. , Pivot 2 can be pulled out in the direction of arrow C. By providing such a screw 8, the pivot receiving portion 1 of the locking claw 6 is provided.
After making the retracted state from c, the pivot 2 is attached to the pivot receiving portion 1
It can be pulled out from c and the pivot 2 can be easily pulled out by one person.

Further, in this embodiment, as described with reference to FIG. 3B, the direction D of the pivot receiving portion 1c is
Since the orientation is set to be inclined (θ ≠ 90 degrees) with respect to the door mounting frame 18, it is assumed that the covers 13 and 12 and the stopper 3 are externally provided.
The door body 22 cannot be removed when the door body 22 is attached at a position where it can be removed, that is, even if the door body is an openable door body. That is, the side opposite to the hinge side is normally locked from the inside of the room, and if the pivot receiving portion 1c is formed perpendicularly to the door body surface of the door body 22, the pivot 2 will slip out of the pivot receiving portion 1c and the door body 22. Although the pivot receiving portion 1c is inclined with respect to the door surface,
Even if the door body 22 is pulled from the outside, the pivot 2 does not come off from the pivot receiving portion 1c and is used as a door body that opens to the outside, so that the crime prevention function is improved.

Although the present invention has been described above with reference to the embodiments, when the present invention is carried out, the upper and lower hinge main bodies 1 and 21, the pivot 2, the pivot receiving portion 1c, and the door mounting frame 18 are provided without departing from the gist of the present invention. The specific shapes of the door main body 22, the bearing 23, etc., and the combination thereof are not limited to the above-described embodiment, and various changes and additions can be made.

[0031]

According to the present invention, the pivot is attached to the lower hinge main body provided in the door main body, the notch-shaped pivot receiving portion is provided in the upper hinge main body provided in the door mounting frame, and the pivot is moved together with the door main body. , The pivot is fitted into the pivot receiving part, and the pivot is rotatably attached to the lower hinge main body via the bearing, so that the door main body can be easily attached, and the pivot receiving part is Since it is not necessary to rotatably fit the pivot,
Since there is no clearance, the door body will not rattle when opening and closing.

When the pivot and the bracket are connected by tightening the bolts and nuts, rattling may occur due to the looseness of the bolts. However, as in the present invention, the pivot is mounted on the pivot receiving portion. The tight fit structure eliminates the problem of rattling due to the passage of use time.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of an upper hinge of a pivot hinge used for a door body of the present invention.

FIG. 2 is an exploded perspective view showing an embodiment of a lower hinge of the pivot hinge used in the door body of the present invention.

FIG. 3A is a partially cutaway side view showing a state where the pivot hinge of this embodiment is attached to a door mounting frame and a door body.
FIG. 6B is a plan view showing a state where the upper hinge body is attached to the door attachment frame.

FIG. 4A is a plan view showing a state where the lower hinge body of this embodiment is attached to the door body, and FIG. 4B is a perspective view showing a state in the middle of the attachment work.

FIG. 5A is a partially cutaway plan view showing a coupling structure of a pivot and a pivot receiving portion in a mounting completed state of this embodiment, and FIG. 5B is a partially cutout side view thereof.

FIG. 6A is a bottom view showing the operation of the locking claws in the mounting work of the present embodiment, and FIG. 6B is a bottom view showing a working state in which the pivot locking state by the locking claws is also released. .

[Explanation of symbols]

1: Upper hinge body, 1c: Pivot receiving part, 1f: Shaft,
2: pivot, 3: stopper, 6: locking claw, 6d: inclined surface,
7: spring, 8: screw, 9: pressing plate, 12: upper cover, 13: lower cover, 18: door mounting frame, 19: upper frame, 21: lower hinge main body, 22: door main body, 23: bearing, 28 :cover

Claims (1)

[Claims] 1. A door in which a door main body is attached to a door mounting frame by means of a pivot hinge so as to be openable and closable. Mounting, a pivot is rotatably attached to the lower hinge body via a bearing, and the upper hinge body is provided with a notch-shaped pivot receiving portion in which the pivot moves laterally and is fitted without clearance, A door provided with a pivot hinge, wherein the upper hinge body is provided with a stopper for preventing the pivot fitted in the pivot receiving portion from coming off in the lateral direction.