JPH049421Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention is a device for preventing unauthorized removal of a sliding door in a closed state, and more specifically, a device for preventing the sliding door from being removed from the rail by lifting the door stop side of a sliding door in a closed state. It relates to a device for.

[Conventional technology]

Conventionally, when the window is in a closed state, the mating portions of double-sliding windows are locked and connected using a crescent lock. However, the door stop portion simply fits into the door stop groove of the vertical frame of the window frame.

[Technical problem to be solved]

Therefore, in the conventional sliding door closing structure for double-sliding windows, it is possible to lift the sliding door and remove the door roller from the rail. That is, in a double-sliding window, if the sliding window is lifted at the same time as the door stop and the sliding door is removed from the rail, and the sliding door is strongly pulled toward the outdoors, the crescent lock will be damaged and the sliding door will be able to be opened and closed. Even if the crescent is not damaged, both sliding doors can be bent into an F-shape, allowing thieves to gain entry. In either case, there was a risk that thieves could illegally pull out the sliding door and gain entry. Japanese Utility Model Application No. 52-74646 discloses that by forming a ridge on the lower stile of the outer sliding door of a double sliding door that extends to the lower side of the lower stile of the inner sliding door, the outer sliding door is prevented from being lifted and unauthorized removal is prevented. There are descriptions of things that are designed to prevent this from happening. However, the device described in the same publication prevents the lifting of the joint part when the window is closed, but cannot prevent the lifting of the doorstop side.
Crime prevention is not perfect. This idea was created in view of the above points, and by adding the simplest possible structure to the sliding door and the vertical frame, it is possible to prevent the sliding door from closing on both the door stop side and the binding side when the door is closed. The purpose is to prevent the sliding door from being lifted and removed from the rail, thereby preventing damage to the crescent lock or unauthorized entry due to the F-shaped bending of the joining part.

[Example] Next, an example of this invention will be described based on the drawings. In the embodiment shown in FIGS. 1 and 2, the inner sliding door d ₁ is provided with a protruding locking portion A ₁ projecting toward the outdoors at the lower end of the outer wall 2 of the lower stile 1. . Also,
The outer sliding door d ₂ is provided with a protruding edge-shaped locking portion A ₂ at the lower end of the inner wall 4 of the lower stile 3 that projects toward the indoor side. The locking parts A ₁ and A ₂ are provided so that the locking part A ₁ of the inner sliding door d ₁ is slightly above the locking part A ₂ of the outer sliding door d ₂ when both sliding doors are installed on the window frame. This prevents it from interfering with the sliding of the sliding door. Generally, convex walls 7, 8, and 9 are provided on the opposing surfaces of the left and right vertical frames J ₁ and J ₂ of the window frame to partition the door stop grooves 5 and 6 of both sliding doors, but the right vertical frame J As shown in Fig. ₁ , a notch 9 is formed in the convex wall 8 of ₁ at approximately the same height as the locking part _A1 of the sliding door d1 when closed, and the lower end of the convex wall facing the notch The lifting prevention part _B1 is constituted by this. Also, left vertical frame J ₂
A notch is formed in the convex wall 8' at approximately the same height as the locking part _A2 of the sliding door _d2 when closed, and the lower end of the convex wall facing the notch prevents lifting similar to _B1. A section _B2 (not shown) is configured. With the above configuration, both sliding doors d ₁ and d ₂ can be opened as usual.
is closed and the crescent lock 10 attached to the inner sliding door is locked, the locking parts A ₁ ,
A ₂ is locked to lifting prevention parts B ₁ and B ₂ formed on the convex walls 8 and 8' of the vertical frames J ₁ and J ₂ , respectively, and
The outer sliding door locks into the inner sliding door at the meeting part.
Locked by A ₁ and A ₂ . Therefore, it is not possible to lift the door stop side end of any sliding door.
In addition, since the mating part of the outer sliding door cannot be lifted, the door wheels 11 and 12 are placed on the rail 1 of the lower frame S.
It cannot be removed from 3.14. Therefore, it is difficult to lift the joining parts of both sliding doors and forcefully push them toward the outdoors, damaging the crescent lock 10, or bending the sliding doors into an F-shape and allowing both sliding doors to be removed from the window frame illegally. It can be effectively prevented. In this embodiment, the locking portions of the sliding doors d ₁ and d ₂
Both A ₁ and A ₂ are projecting edges, and are used as locking parts of inner sliding doors.
Since A ₁ is located above the locking part A ₂ of the outer sliding door,
To prevent a sliding door from being illegally removed from the outdoor side in an unlocked state, to allow the sliding door to be removed only from the indoor side, and to eliminate the danger of the sliding door falling downstairs when it is attached or detached.

[Effect of the idea]

As described above, according to this invention, when both sliding doors are closed, the door stop sides of both sliding doors are respectively locked to the vertical frame, and the outer sliding door is locked to the inner sliding door at the joining part. Therefore, when the door is closed and locked, it is possible to effectively and reliably prevent the window from being opened from the outside or from unauthorized removal by lifting both sliding doors at once. This sliding door removal prevention device can be easily constructed by providing a protruding locking portion on the lower stile and providing a notch in the partition convex wall of the vertical frame, and requires the manufacture of separate parts such as locking blocks. No installation is required, and there is no increase in product cost.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a main part of an embodiment of this invention, FIG. 2 is a cross-sectional view of the same, and FIG. 3 is a front view as viewed from the Y arrow in FIG. d ₁ ... Inner sliding door, d ₂ ... Outer sliding door, 1, 3 ... Lower stile, A ₁ , A ₂ ... Length-shaped locking part, B ₁ ... Lifting prevention part, J ₁ , J ₂ ... Vertical frame, 8 ... Partition convex wall,
10...Crescent lock, 19...Airtight material, 20...
...Attraction piece.

Claims (1)

[Scope of utility model registration request] The lower end of the outer wall of the lower stile of the inner sliding door has a protruding locking part that protrudes toward the outdoors, and the lower end of the inner wall of the lower stile of the outer sliding door has a protruding locking part that projects toward the indoor side. With both sliding doors installed on the window frame, the locking part of the inner sliding door is provided close to the upper side of the locking part of the outer sliding door, and the locking part is closed to the convex wall that partitions the doorstop groove of the vertical frame. A device for preventing unauthorized removal and removal of a sliding door, characterized in that the locking portions of both sliding doors in the state form notches that engage with each other, and the lower end of the convex wall facing the notch constitutes a lifting prevention portion.