JPS6243095Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a door opening/closing device.

An engagement member that engages and disengages from an engagement hole provided on the side surface of the door receiving frame is provided in a side end face of the door opposite to the engagement hole so as to be protrusive and retractable, and the engagement member is provided with a handle that can be operated to protrude and retract. 2. Description of the Related Art A door opening/closing device is conventionally known in which a door is provided with an engagement/release mechanism, and the door is engaged/disengaged when the door is opened/closed by operating the handle.

However, while this configuration has a reliable door release prevention function, when used with a door closer that closes the door, the handle of the disengagement mechanism must be pressed each time the door is released. The drawback is that opening and closing operations are rather troublesome in places where there are many people coming and going, such as stores.

Therefore, in such a case, an engaging member having a smooth convex curved surface with a receded tip side is provided so as to be protrusive and retractable into the side end face of the door, and this engaging member is simply supported elastically. door opening/closing device is more effective.

The purpose of this invention is to provide a function that allows the engaging member to freely engage and disengage from the engaging hole of the door holder frame by the action of the spring;
To provide an easy-to-use door opening/closing device in which an engagement release function for disengaging an engagement member from an engagement hole by forced operation with a handle can be selectively used in one model.

An embodiment of this invention will be described based on FIGS. 1 and 2. This door opening/closing device is provided with an engaging member main body 5 that is supported by the door 1 so as to be freely protrusive and retractable from the side end surface of the door 1 and that engages with an engagement hole 4 on the side surface of a door receiving frame 3 in a protruding state. A spring 2 is provided that urges the member body 5 to protrude, and the side surface of the engagement member body 5 facing the door release side is engaged by contact with the inner surface of the engagement hole 4 as the door 1 rotates to release. A smooth convex curved surface with a receding tip on the tip side into which the mating member main body 5 is immersed,
A vertical plate is removably attached to the protruding curved side surface of the engagement member main body 5 with a screw 6, and the side surface facing the door release side abuts the inner surface of the engagement hole 4 to prevent the door 1 from being released. An engaging member auxiliary member 7 having a surface 7a is provided, and has a handle 8 and the engaging member main body 5 is attached to the spring 2.
The door 1 is provided with an engagement release mechanism (not shown) that causes the door to retract against the force.

In FIG. 1, reference numeral 9 denotes a retraction clearance for the engagement member main body 5, and a storage space in which the spring 2 and other engagement/disengagement mechanisms are arranged.

Because of this configuration, in the case of use in which the engagement of the door 1 with the door frame 3 is released by grasping the handle 8 and simply releasing the handle 8, such as when a door closer is installed, the engagement member The auxiliary member 7 is not attached to the engagement member main body 5, and the above-mentioned action can be performed by engaging and disengaging only the engagement member main body 5 into the engagement hole 4. That is, the engagement member main body 5
Because of its smooth convex curved surface, it can be easily released from the engagement hole 4 by a moderate locking action and a tensile force exceeding a predetermined value.
This is accomplished without any forced operation using the handle 8 of the disengagement mechanism.

In addition, in the case of a usage example in which the door 1 is disengaged from the door frame 3 by forced operation by the disengagement mechanism, the engagement member auxiliary member 7 is attached to the engagement member main body 5, and the engagement member auxiliary member 7 is attached to the engagement member main body 5. The locking function is activated by the contact of the vertical surface 7a of the engagement member auxiliary member 7 with the inner surface of the engagement hole 4, and the engagement can be released only by forced operation using the handle 8 of the engagement release mechanism. can.

As described above, the door opening/closing device of this invention is provided with an engaging member main body that is supported by the door so as to be freely protrusive and retractable from the side end surface of the door, and that engages with the engaging hole on the side surface of the door receiving frame in a protruding state. A spring is provided that urges the engagement member body to protrude, and the side surface of the engagement member body facing the door release side is brought into contact with the inner surface of the engagement hole as the door is rotated to release the door. The distal end side into which the engagement member body is recessed has a smooth protruding surface which is retracted, and the side surface facing the door release side is removably attached to the protruding curved side surface of the engagement member body, and the side surface facing the door release side is in the engagement hole. providing an engaging member auxiliary member having a vertical surface that abuts the inner surface and prevents release of the door;
Since the door is provided with an engagement release mechanism that has a handle and causes the engagement member main body to retract against the spring, one model can easily engage and disengage the engagement member from the door receiving frame. Depending on the purpose of use, you can choose between two functions: one that allows you to freely release the door by simply pushing or pulling the door, and the other that allows you to release the engagement only by forcing the handle of the engagement release mechanism. It has the effect of being able to.

[Brief explanation of the drawing]

FIG. 1 is a horizontal sectional view of a main part of an embodiment of this invention, and FIG. 2 is an exploded perspective view of the main part. 1...Door, 2...Spring, 3...Door frame, 4
...Engagement hole, 5...Engagement member body, 6...Screw,
7... Engaging member auxiliary material, 7a... Vertical surface, 8...
handle.

Claims (1)

[Scope of utility model registration request] An engaging member body is provided which is supported by the door so as to be freely protrusive and retractable from the side end face of the door and engages with an engagement hole in the side surface of the door receiving frame in a protruding state, and a spring is provided which urges the engaging member body to protrude. , a side surface of the engaging member main body facing toward the door release side is retracted on the distal end side in which the engaging member main body is retracted by contacting with the inner surface of the engaging hole as the door is rotated to release the door; A smooth convex curved surface is removably attached to the convexly curved side surface of the engagement member main body, and the side surface facing toward the door release side comes into contact with the inner surface of the engagement hole to prevent release of the door. 1. A door opening/closing device, wherein the door is provided with an engagement member auxiliary member having a vertical surface, and an engagement release mechanism having a handle and causing the engagement member main body to retract against the spring.