JPH042298Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to an attachment/detachment mechanism for an automatic door-closing device provided on a pivot hinge, and in particular, a mechanism for attaching and detaching an automatic door-closing device to a pivot hinge located on the upper side. This article relates to a mechanism for attaching and detaching an automatic door closing device.

[Conventional technology]

Conventionally, various pivot hinge type automatic door closing devices have been developed.

For example, in the case of a hanging type pivot hinge, as shown in FIG. A known door is constructed of a side seat plate d and a door side seat plate f, which has a bearing e that supports a pivot shaft d and is attached to the door a side.
In this type of pivot hinge, an automatic door closing device attachment/detachment mechanism (hereinafter abbreviated as the attachment/detachment mechanism) is used to easily attach or detach an automatic door closing device for braking and adjusting the self-closing speed during the closing operation of the door. ).

By the way, regarding this attachment/detachment mechanism, for example, when an automatic door closing device is attached to the upper side of the door, a mechanism has been proposed in which the holding member that constitutes the attachment/detachment mechanism is attached to the door side seat plate of the upper pivot hinge. (Refer to Publication No. 10866 of 1982). That is, as shown in FIG. 5, a substantially disc-shaped holding member g is rotatably attached to the door side seat plate f, and a protruding engagement portion h is attached to the outer edge side of the holding member g. established,
Further, the automatic door closing device has a structure in which a protruding engaged portion j is provided at the upper end of the cylindrical body i. When fixing the automatic door-closing device to the pivot hinge k, attach the screw l to the screw hole m of the door side seat plate f, and rotate it to the final position while pressing the holding member g with the base end of the screw l. Therefore, the engaging portion h is engaged with and fixed to the engaged portion j, thereby attaching the automatic door closing device to the pivot hinge.

[Problem to be solved]

However, in the case of this type of attachment/detachment mechanism, as mentioned above, the installation operation of the automatic door-closing device requires a delicate operation of rotating the holding member via a screw. If there is insufficient movement or the screws are not properly installed, the holding member and the cylinder of the automatic door-closing device will not engage properly, and since this cannot be confirmed from the outside, the automatic door-closing device will be left as it is and come off during use. There is a risk that it may fall.

In addition, in the case of this type of door, if the automatic door-closing device malfunctions, for example, even if the holding member is rotated in the opposite direction in an attempt to remove the automatic door-closing device, the holding member The frame side seat plate attached above gets in the way, making it difficult to rotate the holding member.

The purpose of this invention is to solve the above-mentioned problems, and more specifically, to provide an attachment/detachment mechanism that can easily, reliably, and quickly attach and detach an automatic door closing device. It is in.

[Means and actions for solving problems]

That is, this invention consists of a screw hole provided in the door side seat plate constituting the upper pivot hinge portion, a holding member rotatably attached to the door side seat plate and provided with an engaging portion, and the door side seat plate. a rotation regulating member that is attached to a side seat plate and restricts the rotation of the holding member so that the holding member rotates between an initial position and a final position; In the automatic door-closing device attachment/detachment mechanism for fixing and attaching the automatic door-closing device to the pivot hinge portion by engaging with the cylindrical engaged portion of , a fixing screw hole into which a fixing screw is screwed, and a fixing screw hole formed on the door side seat plate to indicate that the holding member is rotated to a final position and the automatic door closing device is fixed and attached to a predetermined position. The holding member is provided with a rotation operation means consisting of an operation lever that is confirmed by contact with the locking portion, and the holding member can be easily and quickly rotated by the operation lever. Therefore, the automatic door-closing device can be quickly and reliably attached to the pivot hinge portion, and the automatic door-closing device can be easily and reliably removed from the pivot hinge portion.

〔Example〕

An embodiment of this invention will be described below with reference to the accompanying drawings.

FIG. 1 shows the attachment/detachment mechanism according to this invention. This attachment/detachment mechanism is rotatably attached to a door side seat plate (hereinafter abbreviated as the seat plate) 1 and includes a rotation operation means 2. It consists of a holding member 3.

The seat plate 1 constitutes a pivot hinge portion 4, and has a structure in which a locking portion 7, which is covered by the rotation operating means 2, is erected downward. A screw hole 8 is formed in this locking portion 7 .
Further, a regulating member 9 is erected on the seat plate 1 in order to rotate the holding member 3 within a certain range from an initial position to a final position.

The rotation operation means 2 is formed into a substantially rectangular shape and has an operation lever 10 and a fixing screw hole 11 on the tip side, and in this embodiment, it is formed integrally with the holding member 3. ing. Operation lever 1
0 is provided in order to easily, reliably, and quickly rotate the holding member 3 from the outside, and in this embodiment, it is a substantially rectangular member that protrudes downward. There is. Fixed screw hole 11
push the holding member 3 to the final position and rotate it,
When the operating lever 10 comes into contact with the locking portion 7 of the seat plate 1, the operating lever 10 is adjusted so that it exactly matches the screw hole 8.
By screwing the fixing screw 12 into the part that reaches the screw hole 8 through the fixing screw hole 11, the automatic door closing device closes the pivot hinge part 4.
It is designed to be integrally fixed to the

The holding member 3 is formed from a substantially circular flat plate, and a protruding engagement portion 13 is provided at a predetermined position on the outer peripheral edge side. By rotating the holding member 3 to the final position, the engaging portion 13 is formed on the inner edge of the upper part of the cylinder 14 of the automatic door-closing device, and is formed in the shape of a protrusion that protrudes inward from the cylinder 14. It engages with the engaged portion 15 to fix the automatic door closing device (see FIG. 3). Also,
By rotating the holding member 3 to the initial position,
The engaging part 13 is completely released from the engaged state with the engaged part 15, and the automatic door closing device can be removed (see FIG. 1).

In this embodiment, the rotation operation means 2 is formed integrally with the holding member 3, but the invention is not limited to this, and any structure can be used as long as it has the same effect. Of course that's fine. Also,
In this embodiment, the operating lever 10 is configured to cover the locking portion 7 of the seat plate 1, but the configuration is not limited thereto. For example, the locking portion provided upright on the seat plate It may be configured such that an insertion hole is formed in the insertion hole, and the operating lever of the rotation operation means passes through the insertion hole and is erected downward.

Therefore, according to the attachment/detachment device according to the previous embodiment,
The holding member 3 can be easily rotated by the operating lever 10 that protrudes downward, and the rotation of the holding member 3 to the final position is determined by the contact of the operating lever 10 with the locking portion 7. Because you can check
Falling accidents caused by incomplete installation of the automatic door closing device can be effectively prevented.

Further, according to the attachment/detachment device according to this embodiment, the automatic door closing device can be easily removed by rotating the holding member 3 in the opposite direction using the operation lever 10.

〔effect〕

As described above, according to the attachment/detachment device of this invention, the holding member can be easily and reliably rotated by the rotation operation means having the operation lever, so that the automatic door closing device can be easily and reliably rotated from the pivot hinge portion. can be easily removed, and the automatic door closing device can be reliably attached to the pivot hinge.
There is no risk of it falling off during use after installation.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view showing the automatic door-closing device attachment/detachment mechanism according to this invention, Fig. 2 is a schematic side view of the automatic door-closing device attachment/detachment mechanism in Fig. 1, and Fig. 3 is a schematic plan view showing the automatic door-closing device attachment/detachment mechanism in Fig. 1. Fixed to
FIG. 4 is a schematic cross-sectional view showing a general hanging type pivot hinge, and FIG. 5 is a schematic plan view showing a conventional automatic door closing device attachment/detachment mechanism. . 1...Door side seat plate, 2...Rotation operation means, 3...
Holding member, 4... Pivot hinge part, 7... Locking part, 8... Screw hole, 9... Rotation regulating member, 10...
Operation lever, 11... Fixed screw hole, 12... Fixed screw, 13... Engaging portion, 14... Cylindrical body, 15... Engaged portion.

Claims (1)

[Claims for Utility Model Registration] A screw hole 8 provided in the door side seat plate 1 constituting the upper pivot hinge portion 4 and an engaging portion 13 rotatably attached to the door side seat plate 1 are provided. A holding member 3;
A rotation regulating member 9 is attached to the door side seat plate 1 and restricts the rotation of the holding member 3 so that the holding member 3 rotates between an initial position and a final position. In an automatic door-closing device attachment/detachment mechanism in which the automatic door-closing device is fixed/attached to the pivot hinge portion 4 by engaging the mating portion 13 with the cylindrical engaged portion 15 of the automatic door-closing device, The fixing screw hole 11, which is formed to rotate the member 3 and into which the fixing screw 12 is screwed over the screw hole 8, and the holding member 3 are rotated to the final position, and the automatic door closing device is placed in a predetermined position. It is characterized in that the holding member 3 is provided with a rotating operating means 2 comprising an operating lever 10 that confirms that it is fixed and attached by contacting with a locking portion 7 formed on the door side seat plate 1. Automatic door closing device attachment/detachment mechanism.