JPH10196216A - Door closing order adjuster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of collision sound caused by a collision between a rotating arm and one door generated in association with opening movement of the other door by supporting the rotating arm by one door so as not to be oscillated in case of only the other door on the after closing side being opened/closed in the closed state of one door on the first closing side. SOLUTION: This door closing order adjuster for adjusting the closing order of two double hinged doors 11, 12 is composed of a base part 4 fixed to an upper frame 2 of a building, a rotating arm 6 connected to one end part of the base part rotatably around a shaft 5 facing vertically to the base part 4, a coil spring for energizing the rotating arm 6 in the direction of protruding frontward from the upper frame 2, and a roller 10 provided at the tip of the rotating arm 6 rotatably around a shaft 9 facing vertically. In this case, a screw 21 provided on the rotating arm 6 side to hold the rotating arm 6 in a straight line to the base part 4 in the closed state of one door 11 on the first closing side is brought into contact with the inner surface of one door 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double door type fire door provided in a building, for example, in which the order of closing one door to the closed state of the other door is delayed. It relates to a regulator.

[0002]

2. Description of the Related Art As a conventionally known door closing order adjuster, there is, for example, one configured as shown in FIGS.

[0003] A conventional door closing order adjuster will be described below with reference to the drawings. In the figure, a door closing order adjuster 1 is turned around a shaft 4 which is fixed to an upper frame 2 of a building by screws 3 and one end of the base 4 is directed vertically to the base 4. Rotating arm 6 movably connected
And one end abuts a pin 7 provided at one end of the base 4 to bias the rotating arm 6 in a direction protruding forward from the upper frame 2, and the other end is connected to the base 7. Locking portion 6a on the inner surface of one end of the rotating arm 6 which is the connection side with the rotation arm 6
And a roller 10 made of an elastic synthetic resin and provided at the other end of the rotating arm 6 so as to be rotatable around a shaft 9 oriented vertically. .

In the state where the base 4 of the door closing order adjuster 1 having such a configuration is attached to the upper frame 2 of the building by screws 3, the rotating arm 6 is moved forward from the upper frame 2 by the coil spring 8. Protrude. At this time, the angle of the rotating arm 6 with respect to the base 4 is almost 100 degrees. In a double door type door, when the other door 12 on the rear closing side tries to close first with respect to the one door 11 on the front closing side, the other door 12 is closed.
The inner surface of the end on the side of the eye plate 13 abuts against the roller 10 at the other end of the rotary arm 6, and the force in the closing direction is reduced by the automatic door closing device such as a door locker provided on the other door 12 side. 12
, The closing movement of the other door 12 is temporarily stopped. That is,
The other door 12 cannot be closed unless the turning arm 6 pushes down the turning arm 6 so as to act like a tension.
In this state, when one of the doors 11 is closed and passes over the contact portion between the inner surface of the end of the other door 12 on the side of the plate 13 and the roller 10 at the other end of the rotating arm 6, the eye of one of the doors 11 The distal end of the plate 14 contacts the front surface of the rotating arm 6 and the coil spring is applied to the rotating arm 6 from one of the doors 11 by a force in a closing direction by a door automatic closing device such as a door locker provided on the one door 11 side. 8 against the urging force of the rotating arm 6, the rotating arm 6 is linearly aligned with the base 4 (1).
(80 degrees).
As a result, the other door 12 is released from the tension force by the rotating arm 6, and the other door 12 is closed from behind the one door 11,
Finally, the door is closed as shown in FIG.

The pivot arm 6 is urged in a direction to protrude forward from the upper frame 2 by a coil spring 8 interposed between the pivot arm 6 and the base 4, so that one of the doors 11 is closed and the other is closed. When only the door 12 opens and closes, the rotating arm 6 swings around the shaft 5 each time the other door 12 opens and closes, and especially when the other door 12 is opened, the rotating arm 6 8 protrudes forward from the upper frame 2 due to the urging force, and furthermore, when it protrudes, it hits the corner of one of the doors 11 and emits a collision sound at that time.

[0006]

SUMMARY OF THE INVENTION The present invention solves such a problem. In the case where only one door on the front closing side is closed and only the other door on the rear closing side is opened and closed, the rotating arm is provided. It is intended to be supported by one door so as not to swing, and to prevent the generation of a collision sound due to a collision between the rotating arm and the one door due to the opening movement of the other door. is there.

[0007]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention comprises a base fixed to an upper frame of a building, and one end of the base rotated around an axis perpendicular to the base. A rotating arm that is movably connected, a coil spring that biases the rotating arm in a direction that protrudes forward from the upper frame, and is freely rotatable around an axis that is directed vertically to the tip of the rotating arm. And a roller provided in
A door closing order adjuster that adjusts a closing order of a plurality of doors, the door closing position adjuster being arranged on a rotating arm side to hold the rotating arm in a straight line with respect to a base in a state in which one of the doors on the closing side is closed. The gist of the present invention is that the provided protrusion is configured to contact the inner surface of one of the doors. The gist of the present invention is that the protrusion is a screw whose protrusion amount can be adjusted toward the rotating arm. Further, the present invention is characterized in that the screw is screwed into a female screw hole at the tip of a support bracket provided movably in the horizontal direction on the rotating arm side.

With this configuration, in the double-door type door, a projection such as a screw is provided on the inner surface of one of the doors to hold the rotating arm in a straight line with respect to the base when one of the doors on the front closing side is closed. When only one door is closed and only the other door on the back closing side opens and closes, the pivot arm is supported by one of the doors without swinging. In addition, it is possible to prevent the generation of a collision sound due to a collision between the rotating arm and one of the doors due to the opening movement of the other door.

[0009]

Embodiments of the present invention will be described below with reference to the drawings (FIGS. 1 to 4). In the drawings, the same reference numerals as those in the conventional example denote the same members, and a detailed description thereof will be omitted.

First, a first embodiment shown in FIGS. 1 to 3 will be described. Reference numeral 21 denotes a state in which the rotating arm 6 is aligned with the base 4 in a state in which one of the doors 11 on the closing side is closed. 180 °), a screw provided near one end of the turning arm 6 so as to abut against the inner surface of the eye plate 14 of the one door 11, and this screw 21 is a forward projecting angle of the turning arm 6 with respect to the base 4. In order to adjust the (supporting angle), a lever 22 pivotally supported at a longitudinally intermediate portion of the rotating arm 6 with a shaft 33 whose one end is oriented vertically in the rotating arm 6 is provided in a horizontal direction. It is screwed into the female screw hole 24 at the tip of the movably provided support fitting 23 so that the amount of protrusion from the support fitting 23 can be adjusted. The support fitting 23 is provided with a horizontally oriented long hole 25, and the support fitting 23 is attached to the lever 22 by engaging a support fitting tightening screw 26 screwed to the lever 22 with the long hole 25. .

The lever 22 has two adjusting screws 27 and 28 for adjusting the forward projecting angle (support angle) of the rotating arm 6.
And one of the two adjustment screws 27, 28 passes through the hole 29 of the rotating arm 6 and is screwed into the female screw hole 30 of the lever 22 to adjust the forward projection angle. In this state, the head 27a is tightened so as to come into contact with the outer surface of the rotating arm 6, and the other adjusting screw 28 has the head 28a located inside the rotating arm 6 and the hole 22 of the rotating arm 6 is The amount of screwing into the female screw hole 32 is adjusted, and while the one adjustment screw 27 is loosened, the other adjustment screw 28 is turned in either the forward or reverse direction so that the one adjustment screw 27 By tightening, the forward projection angle of the rotating arm 6 is adjusted by the contact between the tip of the lever 22 and the pin 7. Other configurations are the same as those of the conventional example.

The support fitting 23 provided with the screw 21 at the end is provided with the support fitting tightening screw 26 and the elongated hole 25 on the lever 22 described above.
Horizontally adjustable via a screw
21 is screwed into the female screw hole 24 of the support fitting 23 so that the amount of protrusion from the support fitting 23 is adjusted, and when the one door 11 on the front closing side is closed, the head is mounted on the inner surface of the eye plate 14 of the one door 11. The portion 21a can be brought into contact. When the one door 11 is closed as described above, the head of the screw 21 is attached to the inner surface of the eye plate 14 of the one door 11.
The rotation arm 6 is in a straight line (180 degrees) with respect to the base 4 due to the contact of the roller 21a, and the roller 10 at the other end of the rotation arm 6 is closed even when the other door 12 on the rear closing side is closed. Does not hit the inner surface of the other door 12.

Accordingly, when only the other door 12 opens and closes while the one door 11 is closed, the pivot arm 6 is supported by the one door 11 and does not swing, so that the opening and closing of the other door 12 does not occur. Thus, it is possible to prevent the generation of a collision sound due to the collision between the rotating arm 6 and one of the doors 11.

In the first embodiment described above, the head of the screw 21 is held so as to hold the rotating arm 6 in a straight line (180 degrees) with respect to the base 4 when one door 11 is closed. 21a is configured to abut against the inner surface of the face plate 14 of one of the doors 11, but if the face plate does not exist on one of the doors 11 as in the second embodiment shown in FIG. The head 21a of the screw 21 may be brought into direct contact with the inner surface of the end of the door 11. In this case, the position of the support fitting 23 is adjusted by loosening the support fitting tightening thread 26,
It can be handled by adjusting the amount of protrusion of the screw 21 from the screw.

In the two embodiments described above, the screw 21 is provided at the tip of the support fitting 23, but other means, such as the position and the amount of protrusion, besides providing the screw 21 at the tip of the support fitting 23. The same effect can be obtained by providing a protrusion that can be adjusted, and the present invention is not limited to the configuration in which the screw 21 is provided at the tip of the support fitting 23.

[0016]

As described above, according to the present invention, in the double door type door, a screw or the like is used to hold the rotating arm in a straight line with respect to the base when one of the doors on the front closing side is closed. Since the protrusion is configured to abut against the inner surface of one of the doors, the pivot arm is supported by one of the doors when only one of the doors on the rear closed side opens and closes while one of the doors remains closed. Therefore, it does not swing, and it is possible to prevent the generation of a collision sound due to the collision between the rotating arm and one of the doors when the other door is opened.

[Brief description of the drawings]

FIG. 1 is a perspective view of a door closing order adjuster according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional plan view showing a state in which two doors are being closed in a use state of the closing order adjuster of the door.

FIG. 3 is a plan view showing a state in which two doors are closed in a use state of the closing order adjuster of the door.

FIG. 4 is a plan view showing a state where two doors are closed in a use state of a door closing order adjuster according to a second embodiment of the present invention.

FIG. 5 is a perspective view of a conventional door closing order adjuster.

FIG. 6 is a cross-sectional plan view showing a state in which two doors are being closed in a use state of the closing order adjuster of the door.

FIG. 7 is a plan view showing a state in which two doors are closed in a use state of the closing order adjuster of the door.

FIG. 8 is a plan view showing a state in which only the door on the rear closing side opens and closes when the closing order adjuster for the door is used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door closing order adjuster 2 Upper frame of building 4 Base 5 Axis 6 Rotating arm 7 Pin 8 Coil spring 9 Axis 10 Roller 11 One door 12 The other door 13 Eye plate 14 Eye plate 21 Screw 21a Head 22 Lever 23 Support Bracket 24 Female Screw Hole 25 Long Hole 26 Support Bracket Fastening 27 Adjustment Screw 28 Adjustment Screw

Claims (3)

[Claims] 1. A base fixed to an upper frame of a building, a pivot arm rotatably connected to one end of the base so as to be rotatable around an axis perpendicular to the base, and a pivot arm. A coil spring biasing the arm in a direction protruding forward from the upper frame, and a roller provided at the end of the rotating arm so as to be rotatable around an axis oriented in a vertical direction, and which is a double-split type. A door closing order adjuster that adjusts the order of closing of the doors, provided on the turning arm side to hold the turning arm in a straight line with respect to the base when one of the doors on the front closing side is closed. A closing order adjuster for a door, characterized in that the projection is brought into contact with the inner surface of one of the doors. 2. The door closing order adjuster according to claim 1, wherein the protrusion is a screw whose protrusion amount can be adjusted toward the rotating arm. 3. The door closure according to claim 2, wherein the screw is screwed into a female screw hole at a tip end of a support fitting provided on the rotation arm side so as to be movable in a horizontal direction. Rank adjuster.