JP2002097832A - Lock structure of middle folding double opening sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent inferiority in crime preventing performance in a conventional lock structure of middle folding double opening sashes in which the sash is locked at one position only on each of the upper and lower side to cause rattling of the sash when locked. SOLUTION: In a lock device to hold the middle folding double opening sashes in a closed state, lock members are provided to be capable of protruding and retracting on the right and the left side at an upper and a lower part of the sashes on the opening side, and receiving parts for the lock members are provided in an upper frame and a lower frame, respectively for the middle folding double opening sashes facing the lock members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock mechanism for improving the security performance of a half-fold sash.

[0002]

2. Description of the Related Art A folding door, a sash door and a shoji are conventionally used in order to increase an opening area when a window, an entrance door and a sash door are opened. If you want to get even more space, it is said to be a double-fold. In the case of this center-folding double-opening sash, a security device is provided on the crime prevention. However, as shown in FIG.
, And receiving portions 1f, 1f,... Are provided on the upper frame 1 and the lower frame 2 facing the lock pins 35, 35,.

[0003]

As a technique of a folding door, there is a technique disclosed in Japanese Patent Application Laid-Open No. 7-109864. However, a lock device is not provided, which causes inconvenience in crime prevention. In addition, in the technique shown in FIG. 7, the lock portion is provided only at the upper and lower portions in the middle bent portion, so that the recommended double lock is not provided. Both outer sides are supported by hinges, and the middle bent part is fixed with a lock device, but the side where the center left and right half-fold sashes are aligned is not locked, so there is no locking means, and when closed it will rattle when closed. It will be lost. In view of this, the present invention provides a locking device also at a portion where the sash on the center side is fitted to enable double locking.

[0004]

The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described. That is, in a lock device that holds a half-folded double-opening sash in a closed state, a lock member is provided on each of the upper, lower, left, and right sides of the open side shoji so as to be able to retreat, and an upper frame of the middle-folding double-sided sash facing the lock member. And the lower frame are provided with receiving portions for the lock members, respectively.

[0005]

Next, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view of a double-folded sash viewed from the inside of a room, FIG. 2 is a plan view of the same, FIG. 3 is a plan view of a state in which a shoji is opened, FIG. FIG. 5 is a side sectional view of a lock portion, FIG. 6 is a plan sectional view of the same, and FIG. 7 is a perspective view of a conventional half-fold sash in the middle of opening a shoji.

Referring to FIGS. 1 to 6, a folding sash A is provided with outer sashes 5, 6 and inner sashes 7, 8 in a frame surrounded by an upper frame 1, a lower frame 2, and side frames 3.4. Then, the outer sash 5 and the inner sash 7 are pivotally connected and can be opened and closed as a bent, and the outer sash 6 and the inner sash 8 are connected and opened and closed as a folded. As shown in FIG.
The lower frame 2 is fixed to the foundation 2
2 and fixed on the floor 24 fixed on the joist 23 and the upper frame 1
And the inner sides of the side frames 3 and 4 through the frame 25
Fixed to

A rail 9 for attaching a curtain or the like to the indoor side of the outer sashes 5 and 6 and inner sashes 7 and 8 is formed on the upper frame 1 and the lower frame 2. In addition, the outer sliding doors 5 and 6 have glass 4 between the upper frame 40 and the lower frame 41 and the vertical frames 42 and 42, respectively.
3 is fixed. The outer sides of the vertical frame 42 of the outer sliding doors 5 and 6 are pivotally supported by the side frames 3.4 via hinges 10 and 10, and the inner side of the inner vertical frame 42 of the outer sliding doors 5 and 6 are mounted on the inner side of the vertical frame 42. 8
Are connected via a hinge 11. A lock lever 12 is provided integrally with the hinge 11 at the bent portion, and the lock lever 12 is provided with a lock pin 31.
It is interlocked with 2.33.34.

The inner shojis 7 and 8 are constituted by a glass shoji 13 and a guide post 14 pivotally connected by a hinge 15, and the upper end of the guide post 14 on the open side is rotatable with respect to a vertical axis. A door wheel 16 is disposed in the upper frame 1
On the rail 1a formed in the longitudinal direction. A guide pin 17 is provided at the lower end of the guide post 14.
Are projected downward, and the guide pins 17 are inserted into rails 2a formed in the lower frame 2 in the longitudinal direction so as to be slidable.

In this way, the guide post 14 is used to open and close the outer sash 5 and 6 and the inner sash 7 and 8 when opening and closing.
・ Supported by the sash frame by the door wheel 16 ・ 16 and the guide pins 17 ・ 17 of the guide pillars 14 ・ 14, and can be moved between the upper frame 1 and the lower frame 2 while being maintained in the vertical direction. . 19 is an outer handle.

The lock mechanism according to the present invention uses the inner sash 7.
8 and the upper frame 1 and the lower frame 2, and lock pins 31, 32, 33, and 34 are provided so as to be able to move up and down on the inner sash 7, 8. 31 ・ 32 ・ 33 ・
34 receiving parts are provided. That is, the inner sash 7 will be described. As shown in FIGS.
A lock pin 31 is protruded upward and backward from the upper frame 27 on one side, and the lock pin 31 is urged upward by a spring, and a lock pin 32 is protruded from the lower frame 28 on the hinge 11 side of the shoji 7. The lock pin 32 is projected downward so as to be retractable, and is urged downward by a spring.

A lock pin 33 protrudes from the upper part of the guide column 14 on the side where the inner sashes 7 and 8 meet (opposite the hinge 11) so that the lock pin 33 can come and go, and the guide pin 33 is attached upward by a spring. The lock pin 34 protrudes from the lower part of the guide post 14 so as to be able to move out and retreats, and is urged downward by a spring.

The lock pins 31, 32, 33
Reference numeral 34 is linked to the lock lever 12 so that the lock lever 12 is housed in the upper frame 27 or the lower frame 28 or the guide post 14 by rotating the lock lever 12 so that the lock can be released. However, by providing the lock lever 12 on the guide post 14, it is possible to open the sashes on both sides with a small operation, so that the lock lever 12 can be opened from a locked position in a half-open state as described later. Further, when the lock lever 12 is released, the operation of the lock lever 12 is easy, and the operability can be improved. The lock lever 12 is provided with a lock body (not shown), and by operating the lock body, the lock lever 12 cannot be rotated, so that the lock release operation cannot be performed. It is a so-called double lock.

On the other hand, the lock pins 31 and 33 of the upper frame 1
Fitting recess (so-called receiving pot) 1 serving as a receiving portion at a position opposed to
b · 1c, and the lock pin 32.3 of the lower frame 2
4 are provided with fitting recesses 2b and 2c. The lock pins 33, 33 and 34, 34 on the contact side of the inner sashes 7, 8 located on the center side can be inserted into one fitting recess 1c, 2c at the top and bottom, respectively, so as to reduce the number of parts. And

In such a configuration, when the half-folded double-opening sash A is closed, the lock pin 31 is fitted in the fitting recess 1b, the lock pin 32 is fitted in the fitting recess 2b, and the lock pin 33 is The lock pin 34 is fitted in the fitting recess 2c, and the lock pin 34 is fitted in the fitting recess 1c. In this way, there are four lock locations, thus improving security.

When the lock lever 12 is rotated to open the shoji, the lock pins 33, 33, 34, 34
Are housed in the fitting recesses 1b, 1b, 1c, 2b, 2b.
2c, the door wheel 16 and the guide pin 17 slide along the rails 1a and 2a, respectively, by pushing the lock lever 12 so as to be folded, thereby opening the sliding doors 5, 6, 7, and 8. Can be. At this time, it is possible to open the guide lever 12 to the full open position while rotating the guide lever 12 to the release side. The fitting recesses 1b and 2b are fitted and stopped. This half-open state can be maintained, but to open it further, the lock lever 12 is once again rotated to release the lock and open. In addition, fitting recesses 1 d and 2 d are formed on the hinge 10 side of the upper frame 1 and the lower frame 2,
When the sliding doors 5, 6, 7, 8 are opened, the lock pins 33,
It is also possible to adopt a configuration in which it is possible to maintain an open state by fitting into the fitting recesses 1d and 2d. With this configuration, it is possible to prevent the door from being closed by the wind or the like, and it is possible to prevent the sashes from hitting each other when the doors are opened vigorously, thereby causing damage. When the sliding door is opened, the lock pins 33 and 34 are fitted halfway through the fitting recess 1b.
2b, it is stopped first, and when opened further, it stops at the fitting recesses 1d and 2d, and can be stopped at the stepwise opened position.

[0016]

As described above, the present invention has the following advantages. That is, in the lock device for holding the double-folded sash in a closed state, a lock member is provided on each of the upper, lower, left, and right sides of the open side shoji so as to be retractable, and the lock member is opposed to the lock member. The upper and lower frames of the folding double-sided sash are provided with receiving parts for locking members, respectively, so the number of locking points increases compared to the conventional type, so that the sash can be firmly fixed to the frame when locking, improving security It was done.

[Brief description of the drawings]

FIG. 1 is a front view of a double-folded sash viewed from the inside of a room.

FIG. 2 is a plan view of the same.

FIG. 3 is a plan view showing a state where a shoji is opened.

FIG. 4 is a perspective view of a half-folded double-opening sash in the process of opening a shoji;

FIG. 5 is a side sectional view of a lock portion.

FIG. 6 is a plan sectional view of the same.

FIG. 7 is a perspective view of a conventional half-folded double-opening sash in the process of opening a shoji.

[Explanation of symbols]

 A Middle folding double-opening sash 1 Upper frame 2 Lower frame 1b ・ 1c ・ 2b ・ 2c Fitting recess 5.6 Outer shroud 7.8 Inner shroud 12 Lock lever 31 ・ 32 ・ 33 ・ 34 Lock pin

Claims (1)

[Claims] 1. A locking device for holding a half-folded double-opening sash in a closed state, wherein a lock member is provided on each of upper, lower, left and right sides of an open side shoji so as to be retractable, and a half-folding double-sided sash opposed to the lock member is provided. A lock structure for a half-folded double-opening sash, wherein a receiving portion for a lock member is provided on each of the upper and lower frames.