JPH09268816A - Window locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of locking a window so as not to be opened over the open gap to prevent a crime when the window is slightly opened. SOLUTION: A stopper button 8 and a set button 10 which are respectively urged by springs 32, 33 in a retractable manner from opening parts 12, 13 are stored in a box 7 provided with at least a pair of opening parts 12, 13. When a sliding piece 27 is engaged with the set button 10 slidably in the direction orthogonal to the moving direction of the set button, and the stopper button 8 is pressed into the box 7, the sliding piece 27 is engaged with to prevent the stopper button 8 from being projected, and when the set button 10 is pressed, the stopper button 8 is detached from the sliding piece 27 and projected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window door locking device, and in particular, when one of a pair of window doors consisting of sliding doors in a window frame is opened with a small amount for ventilation or installation of a ventilation fan, The present invention relates to a device that locks a window so that it cannot be opened for crime prevention.

[0002]

2. Description of the Related Art One of a pair of window doors, which is a sliding door of a window frame in a home or an office, is slightly opened for ventilation or installation of a ventilation fan. It is necessary to prevent it from opening.

[0003]

SUMMARY OF THE INVENTION Therefore, the present invention provides a device for locking a window so that it cannot be opened beyond the open gap for the purpose of crime prevention when the window is opened with a small amount of permission. It is a thing.

[0004]

SUMMARY OF THE INVENTION A window door locking device according to the present invention comprises a housing having at least a pair of openings,
A stopper button and a set button, which are biased by a spring so as to be retractable from the opening, are housed, and a sliding piece is movably engaged with the set button in a direction orthogonal to the moving direction of the stopper button, and the stopper button is housed in the housing. It is characterized in that when it is pushed in, the sliding piece engages to prevent the stopper button from projecting, and when the set button is pushed, the stopper button disengages from the sliding piece and projects.

Therefore, when it is desired to fix the window door locking device to one side rail of the window door and to open the other window door with a small amount, push the set button into the housing to project the stopper button. If this is done, both windows cannot be opened beyond the open space, and crime prevention is possible.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a pair of window doors 2 and 2a are slidably arranged inside a window frame 1 so that the window doors 2 and 2a can be opened from outside by a locking tool 3 when the window doors 2 and 2a are closed. It is designed so that it cannot be locked. Therefore, the lock is released and the window 2a is replaced with the other window 2
When a small gap 4 is formed between the window door 2a and the window frame 1, the window door lock device 5 prevents the window doors 2 and 2a from being opened from the outside. Door 2
Is provided.

As shown in FIG. 2, the window door locking device 5 is fixed by embedding a housing 7 in a horizontal rail 6 below the window door 2 that slides on a rail 1a of the window frame 1 and is fixed from the housing 7. The stopper button 8 is arranged so as to be retractable, and when the stopper button 8 projects from the housing 7 (shown in phantom in FIG. 2), it abuts against the end surface of the vertical bar 9 of the window 2a and opens further. The gap 4 is locked to a predetermined L dimension so that it cannot be performed. The retracting operation of the stopper button 8 is performed by pushing the set button 10 arranged in the housing 7 in parallel with the stopper button 8 so that the stopper button 8 is projected by the force of the spring incorporated therein, and in order to release it.
This is done by pushing in the stopper button 8 projecting from the housing 7.

Therefore, the window door locking device 5 will be described in detail. As shown in FIG. 3, the housing 7 is made of resin or the like, and the stopper button 8 and the set button 10 are slid on the exposed portion 11 exposed from the horizontal crosspiece 6. Openings 12 and 1 for storing as much as possible
3 is formed, and a pressing portion 14 is formed on the side of the exposed portion 11 so as to project in a hook shape. An embedding portion 15 is formed by penetrating through holes for accommodating the stopper button 8 and the set button 10. The embedding portion 15 has a smaller outer shape than the exposed portion 11 and is integrally formed. The projections 16 and 17 for sandwiching and the claw projections 17 and 17 for locking the back cover 34 are integrally formed.

The stopper buttons 8 are formed with retaining portions 18 on the side surfaces of the bottom portions facing each other, and the retaining portions 18 are formed with slopes 19. The slope 19 may be provided only on the set button 10 side, but it is formed on both of the retaining portions 18 in order to prevent a mistake during assembly. The stopper button 8 is an internal hollow body, and a spring guide rod 20 is projectingly provided at the center of the inside thereof. The set button 10 has a V-shaped guide groove 21 on opposite sides,
21 are molded, and the stoppers 2 are respectively provided on the squares.
2 is molded, the inside is hollow, and a spring guide rod 23 is provided so as to project substantially at the center. The stopper 22 is the exposed portion 11
It is housed in the square groove 25 that is formed at the bottom of the through hole of the opening 13 and forms a stroke of projecting and retracting.

A sliding piece 27 having guide pins 26, 26 engaging with the guide groove 21 of the set button 10 projecting from opposite side surfaces is housed in the internal hollow portion of the set button 10. The guide pin 26 moves the sliding piece 27 in a direction orthogonal to the movement of the set button 10 by the movement of the guide groove 21, and the guide groove 21 is formed to be inclined at an angle of about 45 degrees. An arm 29 having a beveled surface 28 capable of sliding on the beveled surface 19 of the stopper button 8 is formed on the sliding piece 27 at the tip end portion thereof, and is formed on the side surface in the direction orthogonal to the guide pin 26, and the arm 29 is opposed to the arm 29. A guide arm 30 that projects toward the side is integrally formed. The guide arm 30 engages with a guide groove 31 formed on the side surface of the opening portion 13 of the embedded portion 15 on the bottom side of the through hole so that the guide arm 30 can move forward and backward. The sliding piece 27 is embedded in the embedded portion 15.
It is arranged so as to be movable laterally inside. Therefore,
The sliding piece 27 has a width W smaller than the width of the set button 10.
(See FIG. 6).

The spring guide rods 20 and 23 are springs 32 and 33 made of compressible coil springs, respectively.
Is loaded, the stopper button 8 is always given a protruding force, and the set button 10 is given a force for returning to the original position after being pushed. A back cover 34 is attached to the bottom surface of the embedded portion 15 so that the springs 32 and 33 can be pressed to store energy. The back cover 34 is made of a metal plate having a spring property and is formed into a U-shaped cross section so that the embedded portion 15
Engaging hole 35 for locking with the claw projection 17 of
Are drilled. The side walls 36 provided with the engagement holes 35 are open outward at their ends so that the bottom of the embedded portion 15 can be easily inserted.

As shown in FIGS. 4 and 5, the window door locking device 5 has a U-shaped cutout 40 formed on the cross rail 6 of the window 2 and the housing 7 is slid from the opening side to expose the exposed portion. The embedding portion 15 is embedded inside the horizontal rail 6 by inserting the thick portion of the horizontal rail 6 between 11 and the projections 16 and 16, and the pressing portion 14 is fixed by the vertical rail 9 connected to the horizontal rail 6. Press and hold stopper button 8
Is fixed at a position separated from the vertical rail 9 by a predetermined distance (distance L in FIG. 2 sufficient to form the gap 4 in FIG. 1). Therefore, the window door lock device 5 is optimally mounted on the window door where the horizontal rails 6 and the vertical rails 9 are made of aluminum sashes. However, even if the window door is made of wood, a hole is made in the horizontal rail. Since the housing 7 can be molded so that it can be embedded, it is not limited to an aluminum sash window.

Therefore, FIG. 6 is a cross-sectional view in which the above structure is assembled. In this figure, the stopper button 8 is the spring 3
2 is compressed and is retracted into the housing 7, and the arm 29 of the sliding piece 27 overlaps and engages with the retaining portion 18 thereof.
The state in which the stopper button 8 is prevented from protruding by the spring 32 is maintained. Therefore, in this state, as shown in FIG. 2, even if the window 2a is slid, the window 7 does not collide with the housing 7 or the stopper button 8 and the opening and closing of the windows 2 and 2a is not hindered.

On the other hand, as shown in FIG. 7, the set button 1
When 0 is pushed in the direction of the arrow F, the set button 10 is compressed in the spring 33 and is retracted into the housing 7 to be guided into the guide grooves 21, 2.
Since 1 moves in the axial direction, the guide pins 26, 26 engaging with the guide grooves 21, 21 move to the lateral side intersecting in the axial direction, whereby the sliding piece 27 moves in the S direction indicated by the arrow. Therefore, although the arm 29 is disengaged from the retaining portion 18 and the stopper button 8 projects in the direction of the arrow O by the force of the spring 32, the stopper button 8 does not protrude from the opening 12 by the retaining portion 18. When the pushing force F of the set button 10 is released, the set button 10 projects by the force of the spring 33 and returns to the original state, but the guide groove 21 is engaged with the guide pin 26, and the sliding piece 27 is in contact. The guide arm 30 of FIG.
Never jump out of.

As a second embodiment of the present invention,
As shown in FIG. 8, two stopper buttons 8 and 8a may be provided. That is, the window door locking device 5
A housing 7a that integrates the two is formed and is fixed to the horizontal rail 6 of the window 2 in the same manner as described above. In the second embodiment, the gap 4 can be expanded by the distance between the stopper buttons 8 and 8a. Therefore,
By arranging a plurality of window door lock devices 5 in a row, the gap 4 can be freely changed. In addition,
In FIG. 8, portions designated by the same reference numerals as those in the second embodiment indicate portions having substantially the same function.

[0016]

As described above, according to the present invention, when it is desired to open a window by a small amount for ventilation or installation of a ventilation fan to form a gap, the purpose is to prevent crime so that the gap cannot be further opened. A window door locking device that prevents the window from opening can be provided.

[Brief description of drawings]

FIG. 1 is a front view of a window embodying the present invention.

FIG. 2 is an enlarged perspective view of an essential part of FIG.

FIG. 3 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 4 is a partial front view showing an application example of the present invention.

5 is a partial side view of FIG.

FIG. 6 is a sectional view of the first embodiment of the present invention.

7 is an explanatory view of the operation of FIG.

FIG. 8 is a perspective view showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Window frame 2, 2a ... Window door 4 ... Gap 5 ... Window door locking device 6, 6a ... Horizontal rail 7 ... Housing 8 ... Stopper button 9, 9a ... Vertical rail 10 ... Set button 21 ... Guide groove 26 ... Guide pin 27 ... Sliding piece 29 ... Arm 30 ... Guide arm 34 ... Back cover

Claims (4)

[Claims] 1. A housing provided with at least a pair of openings, a stopper button and a set button which are biased by a spring so as to be retractable from the openings are housed, and the set button is moved in a direction orthogonal to the moving direction. Engage the sliding piece as much as possible and push the stopper button into the housing to engage the sliding piece and prevent the stopper button from protruding.
A window door locking device characterized in that when the set button is pressed, the stopper button protrudes from the sliding piece. 2. A housing having at least a pair of openings arranged in parallel and having a through hole communicating with the openings, and a spring which is inserted into one of the openings so as to prevent the housing from slipping out. A biased stopper button, a set button that is inserted into the other opening and biased by a spring so that it can be pushed into the housing, and the set button has a guide groove formed obliquely on its side wall. , A sliding piece that has a guide pin that engages with this guide groove and is movably accommodated in the housing in a direction that is interlocked with the set button and is orthogonal to the moving direction thereof
The sliding piece has an arm that engages and disengages with the stopper button and a guide arm that engages with the housing, and a back cover that is attached to the bottom of the housing opposite to the opening and contacts the spring. A window door locking device characterized by being composed of. 3. The housing is formed on an exposed portion exposed from a horizontal rail of a window door, an embedded portion embedded in the horizontal rail, a holding portion which is pressed by a vertical rail of the window door, and the sliding piece. 3. The window door locking device according to claim 2, wherein the recess engaging with the guide arm is integrally formed. 4. The back cover is made of an elastic metal plate having a U-shaped cross-section, the end portions of both side wall portions thereof are bent in a direction opposite to each other, and engaging holes are formed at corner portions of the both side wall portions. The window door locking device according to claim 2, wherein the window hole locking device is provided so that the engaging hole is engageable with a claw projection formed on the housing.