JPS6111429Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a double door that allows the use of a surface lock.

In general, various types of conventional locks have been used for single-swing doors without any problems.
For double-hung doors, there were cases where it was not always possible to use any lock freely due to the structure of the door. Also, among various types of locks, you may not be permitted to use a lock unless it is a surface lock, but the stronger the condition of using a surface lock, the more you want to use a double door, including a parent-child type door. There were cases where the inconvenience of not being able to use it occurred.

This invention was made in order to solve the above-mentioned inconveniences, and the purpose is to provide a double-hung door with a surface lock and a mullion that engages with the lock on the inside part of the double-hung door. do.

To explain the embodiment, 1 and 2 are one door and the other door of a double door, respectively, and these doors 1 and 2 are connected to the left vertical frame 3 and the right side frame of the door frame through hinges 5 and 6, respectively. It is attached to the vertical frame 4. Reference numeral 7 denotes a known surface lock attached to the inner surface near the open end of one door 1, and a surface lock 7 is attached to the inner surface of the open end of the other door 2 corresponding to the surface lock 7. A mullion 9 with an engagement hole 10 for engagement with a latch 8 projecting from the door is mounted with a length slightly shorter than the height of the door opening.
However, this mullion 9 may be installed so that at least a portion where an airtight gasket 13, which will be described later, is attached is slightly longer than the height of the door opening so that it overlaps with at least one of the upper and lower horizontal frames. 11 is a joint formed between the end faces of one door 1 and the other door 2 on the open end side when the double door is closed, and the joint 11 is usually located on the outside of the open end side of one door 1. Although it is blocked from being seen from the outside of the door by a batten 12 fixed in the height direction of the door opening, both the face-mounted lock 7 and the mullion 9 that engages with it are on the inside of the door. Since it is located at , it is not necessarily necessary to provide it and may be omitted as appropriate. 13 is an airtight packing that maintains a seal between the joint 11 of the double door and the mullion 9; 14 is an airtight packing inserted between the doors 1, 2 and the left and right vertical frames 3, 4; It is. These airtight packings 13 and 14 are attached to the battens 1.
As in case 2, it is provided over almost the entire length of the door opening height. Reference numeral 15 indicates French droplets attached to the upper and lower sides of the flange portion 16 of the mullion 9, and these upper and lower French droplets 15, 15 have their tips protruding into the upper and lower pressure points of the upper and lower horizontal frames (not shown). This serves to lock the door on the side where mullion 9 is attached. 17 is a guard chain provided between one door 1 and the other door 2.

As mentioned above, in this invention, the surface lock 7 and the mullions 9 that engage with the locks are attached to the inside surface of each opening end of the double-hung door, so it is not necessary to use the conventional lock 7. In the case of a door in which a latch 8 and a French catch 15 are provided on the end face of the door, the installation of the batten 12, which is indispensable for precautionary reasons, is omitted as appropriate, making it extremely easy to unify the external design of the door. It produces the effect that can be achieved.

In addition, in the above embodiment, a general double door was explained, but one door 1 can be used as a parent door in a parent-child type door, and the other door 2 can be used as a child door, and the child door can be opened outward by hinge 6. If this method is applied to a parent-child type door that can be used, the range of use of the parent-child type door can be significantly expanded compared to the conventional case.

In addition, in the above embodiment, if the length of the mullion 9 where the airtight packing 13 is attached is made slightly longer than the height of the door opening so that it overlaps the upper and lower horizontal frames, and the airtight packing 13 is made continuous, fire prevention and Although the airtightness can be significantly improved, when there is no need to attach the French locks 15, 15 to the door, the mullion 9 may be replaced with a pedestal whose length is approximately equal to the length of the surface lock 7.

[Brief explanation of the drawing]

FIG. 1 is a sectional plan view showing an embodiment of this invention. 1... One door (main door), 2... The other door (child door), 3, 4... Vertical frame of the door frame, 5, 6... Hinge,
7... face lock, 9... mullioned.

Claims (1)

[Claims for Utility Model Registration] (1) In a double door with one end held by a hinge to the vertical frame of the door frame, a surface lock is attached to the inner surface of the opening end of one door, and A double-hung door characterized in that a mullion that engages with a surface lock is provided on the inner surface of the open end side of the other door that corresponds to the surface lock. (2) The double-swing type door according to claim 1, wherein the one door is a parent door of a parent-child type door, and the other door is a child door. (3) The double-door door according to claim 1 or 2, wherein the mullion is a pedestal that engages with a surface lock.