JP2000234465A - Lock device for double sliding window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock device for a double-sliding window which can be utilized also as an auxiliary lock, is easy to install with simple structure, and can be operated easily. SOLUTION: A fixing part 3 to a surface plate 2 attached in an outdoor-side movable window frame 1, and a leg part 5 which extends toward a slide-side edge 4a of an indoor-side movable window frame 4 from the fixing part 3 while elastically deformable to the surface plate 2 side, are provided. Here, at the tip end of the leg part 5, an engagement part 6 is provided which regulates movement of the indoor-side movable window frame 4 in release direction by engaging the slide-side edge 4a of the indoor-side movable window frame 4 of a double-sliding window in closed state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a sliding window.

[0002]

2. Description of the Related Art In recent years, it has been desired to install an auxiliary lock in a sliding window in addition to a main lock such as a crescent lock in order to prevent crime, and such an auxiliary lock is used as a main lock. Or various simple locks that are fixed to the frame of a glass window using screws or the like.

[0003]

However, the above-mentioned prior art has a drawback that the mounting work is troublesome because screws are required to be fixed to the frame or the sash frame.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and provides a locking device for a sliding window which can be used as an auxiliary lock, has a simple mounting operation, and has a simple structure and operation method. With the goal.

[0005]

SUMMARY OF THE INVENTION According to the present invention, the object is to provide a fixing portion 3 to a face plate 2 mounted in an outdoor movable window frame 1, and to pull an indoor movable window frame 4 from the fixing portion 3. Side edge 4a
And a leg 5 that is elastically deformable toward the face plate 2 and has a sliding window closed at the tip of the leg 5. This is achieved by providing a locking device for a sliding window provided with a locking portion 6 which is locked to the edge 4a and restricts the movement of the indoor side movable window frame 4 in the opening direction.

The sliding window is a movable window frame of a window on the indoor side (in this specification, a movable window frame of a window located on the outdoor side in a state of being overlapped in the thickness direction is referred to as an "outdoor movable window frame 1". The movable window frame of the window located inside is referred to as “indoor movable window frame 4”. The pulling edge 4a (the edge on the moving tip side when the window is opened) and the outdoor movable window frame 1 When the pulling side edge 1a is overlapped, it becomes a closed state, and the window opening is opened by sliding either side.

The lock device according to the present invention is used by attaching a fixing portion 3 to a face plate 2 such as a window glass mounted in an outdoor movable window frame 1 by means such as sticking and sticking.
In the fixed state, the locking portion 6 formed at the tip of the leg 5
Is located at a position where the pull-side edge 4a of the indoor movable window frame 4 can be locked. If the indoor movable window frame 4 or the outdoor movable window frame 1 is to be relatively moved in the opening direction in this state, the locking portion 6 is locked to the pulling edge 4a of the indoor movable window frame 4. Movement in the opening direction is restricted. The leg portion 5 can be elastically deformed in the direction of the face plate 2 of the outdoor movable window frame 1. By applying an elastic deformation operation to the leg portion 5, the locking portion 6 is moved from the traveling path of the indoor movable window frame 4. The window opening can be opened by retracting and moving the movable window frame.

The lock device can be made of an appropriate material such as a synthetic resin. However, if the lock device is formed by bending an elastic metal plate such as a stainless steel plate, the manufacturing cost can be kept low. it can.

The locking device is a simple one in which a leg 5 is extended from a fixing portion 3 to a face plate 2 in an outdoor movable window frame 1 and a locking portion 6 is formed at a tip of the leg 5. Therefore, when the leg 5 is formed by bending the tip of the fixing portion 3 into a substantially V-shape, the area in a front view state is reduced, so that the entire device is formed. Can be made compact.

Further, when the embossment 7 is formed on the leg 5, the strength of the leg 5 in the buckling direction can be improved. As a result, in the case of using a plate material, the thickness can be reduced, so that not only the material cost can be saved, but also the force for deforming the leg 5 can be reduced, so that the operability is improved. I do.

[0011]

FIG. 2 shows an embodiment of the present invention. The lock device A is formed by bending a stainless steel sheet material, and has a fixing portion 3 and a leg portion 5. A double-sided adhesive tape 3a is attached to the back surface of the fixing portion 3,
It can be attached to a window glass as described later.

The leg portion 5 is formed by bending one end of the fixing portion 3 into a substantially V-shape in the plate thickness direction, and has an emboss 7 bulging in a direction opposite to the fixing portion 3 at the center thereof. The emboss 7 is formed continuously in the longitudinal direction of the leg 5.

Further, a locking portion 6 is formed at the tip of the leg portion 5. The locking portion 6 is formed by once bending the distal end of the leg portion 5 toward the fixed portion 3 and then turning the support piece 6a back toward the distal end substantially in parallel with the fixed portion 3.

A method of using the lock device A will be described with reference to FIG. In use, first, the fixing portion 3 of the lock device A is fixed to the indoor surface of a window glass (face plate 2) fixed in the movable window frame 1 outside the room. The front edge of the support piece 6a is located slightly behind the front edge of the fixed portion 3 (dimension δ in FIG. 1B), and the front edge of the fixed portion 3 is brought into contact with the outdoor movable window frame 1. When the lock device A is fixed to the window glass in this state, a movable space for the support piece 6a is secured between the support piece 6a and the movable window frame. In the mounted state, the front end of the support piece 6a is located slightly closer to the outdoor movable window frame 1 than the movement trajectory of the indoor movable window frame 4, and interference with the indoor movable window frame 4 is prevented. Since the position of the movable window frame on the outdoor side and the position of the movable window frame on the indoor side are changed by the movable window frame sash, in this embodiment, as shown in FIG. It is offered for sale with a small bending angle θ with the leg 5,
As shown in FIG. 1 (b), the bending angle θ is set to the opening direction so that the tip of the support piece 6 a is positioned so as not to interfere with the movable window frame 4 on the indoor side in a state where the fixing portion 3 is fixed to the window glass 2. The versatility is improved by configuring so that it can be used after adjustment.

In this state, if the indoor movable window frame 4 or the outdoor movable window frame 1 is slid to open the window opening, as shown in FIG.
Of the movable window frame 1, 4
Since the relative movement between them is prohibited, the window opening cannot be opened. When the movable window frames 1 and 4 are forcibly moved, a rotational moment M about the fulcrum 8 and a compressive force C are applied to the leg 5, but the movement in the rotational direction is caused by the support piece 6 a. Abuts against the indoor movable window frame 4. Further, since the section 5 has a large section modulus due to the presence of the embossing 7, the buckling resistance is large,
A predetermined resistance can be obtained without easily causing buckling due to the compression force C. Since the rotational component is small, the supporting piece 6a can be omitted when the leg 5 has a relatively large plate thickness.

Next, to release the lock device A to open the window opening, as shown in FIG.
May be once elastically deformed toward the outdoor movable window frame 1 side, and then the outdoor or indoor movable window frames 1 and 4 may be moved. The elastically deforming operation of the leg 5 causes the locking portion 6 to move as shown in FIG.
As shown in FIG. 3A, the movable window frame 4 is retracted from the movement trajectory of the indoor side movable window frame 4, and thereafter, the movable window frame 4 is merely slid.
As shown in (b), the indoor-side movable window frame 4 can move around the locking portion 6. As shown in FIG. 3A, the lock device A in a state where the tip of the support piece 6 a is in contact with the fixed portion 3 so that the indoor movable window frame 4 can move with the leg portion 5 pushed in. The height H is smaller than the distance D between the glass surface inside the outdoor movable window frame 1 and the indoor movable window frame 4. Further, as shown in FIG. 3B, the height 6 h of the locking portion 6 is in the above-mentioned state, that is, the height of the support piece 6.
The glass 4b in the indoor movable window frame 4 in a state where the bending angle θ has been adjusted to a position where a does not interfere with the indoor movable window frame 4
Is set so that it does not abut.

Further, the window frames 1, 4 are moved from the open state of the window opening.
Is moved to the closed state, the indoor movable window frame 4
After the interference with the locking portion 6, the leg 5 is elastically deformed.
After that, the leg 5 is restored to the initial position by the elastic restoring force and automatically returns to the locked state, so that forgetting to tighten the lock does not occur.

In the above description, the leg portion 5 is formed by bending the fixed portion 3 from the fixed portion 3 toward the indoor movable window frame 4 in a V-shape, and has a small area when viewed from the front (in the direction 1C in FIG. 1B). However, as shown in FIG. 4, the legs 5 may be formed by bending the distal end of the fixing portion 3 at an obtuse angle.

If a warning character or a symbol is printed on the back surface of the fixing portion 3, that is, on the surface corresponding to the face plate 2, the security effect can be enhanced.

[0020]

As is clear from the above description, according to the present invention, a simple locking and unlocking operation can be performed with a simple structure. In addition, since the locking portion is always located at the locked position by the elastic restoring force when the sliding window is closed, the locking is not forgotten, and the safety is high.

[Brief description of the drawings]

FIGS. 1A and 1B are views showing the present invention, wherein FIG. 1A is a front view of a state in which a locking device is fixed to a sliding window as viewed from the indoor side, FIG. 1B is a cross-sectional view taken along line 1B-1B of FIG. () Is a sectional view showing a locked state.

FIG. 2 is a view showing a lock device, (a) is a side view,
(B) is a view in the direction of the arrow 2B in (a), and (c) is a view in the direction of 2A in (a).
FIG. 2 is a sectional view taken along line C-2C.

FIG. 3B-1B in FIG. 1A in an unlocked state.
FIG. 6A is a cross-sectional view taken along a line B, in which FIG. 7A is a diagram illustrating a state in which an indoor movable window frame evades a locking portion, and FIG.

FIG. 4 is a diagram showing another embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 outdoor-side movable window frame 2 face plate 3 fixing portion 4 indoor-side movable window frame 4 a pull-side edge 5 leg 6 locking portion 7 emboss

Claims (4)

[Claims] 1. A fixed portion to a face plate mounted in an outdoor movable window frame, and extending from the fixed portion to a pulling edge of the indoor movable window frame, and elastically deformable to the face plate side. The sliding window which is closed at the tip of the leg portion is locked to the pulling side edge of the indoor movable window frame to move the indoor movable window frame in the opening direction. A lock device for a sliding window provided with a restricting locking portion. 2. The lock device for a sliding window according to claim 1, wherein a fixing portion, a leg portion, and a locking portion are formed by bending a metal plate material having a spring property. 3. The lock device for a sliding window according to claim 1, wherein the leg portion is formed by folding a tip end of a fixing portion into a substantially V-shape. 4. The lock device for a sliding window according to claim 1, wherein the leg portion is provided with an embossment which is continuous in a pulling side direction of the window.