JP2002004671A - Auxiliary lock for ventilation of window sash or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve prevention of crime and safety by providing a locking mechanism allowed to be operated only by a specified person in an auxiliary lock for ventilation of a window sash to which a sliding door or a double sliding window is fitted. SOLUTION: A rotor 5 having a keyway 5a facing to the front face of a case 1 is provided on the side of a part 2b projected from the case when a stopper 2 of the case 1 is locked. A locking piece 6 is accommodated in the vicinity of the rotor to freely reciprocate in the longitudinal direction of the case, and the rotor and the locking piece are connected to each other by a link having one end pivoted on the rotor and the other end pivoted on the locking piece. An engaged part 2c is provided on the end of the part 2b projected from the case when the stopper is locked. The end part on the stopper side of the locking piece is provided with an unlocking engagement part 6a and a locking engagement part 6b which engage with the engaged part of the stopper when the locking piece is moved toward the stopper in the sunk state and projected state of the stopper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary lock for ventilation used in a window sash or the like on which a sliding door or a sliding door is built.

[0002]

2. Description of the Related Art A window sash on which a single sliding door or a sliding door is built is usually provided with a crescent lock for security. However, if the crescent lock remains locked, sufficient ventilation cannot be provided. In some cases, in addition to the crescent lock, an auxiliary ventilation lock that locks the sliding door so that it cannot be opened any more can be opened by opening it in such an amount that a person cannot enter.

FIG. 7 is a perspective view showing a conventional auxiliary lock for ventilation attached to a window sash, and FIG. 8 is an explanatory view of the structure and operation of the auxiliary lock. 8A is a front view in an unlocked state, FIG. 8B is a cross-sectional center view of FIG. 8A, and FIG. 8C is a cross-sectional view in a locked state. As shown in FIG. 7, the auxiliary lock SL is generally installed at a position about 15 cm away from the mating frame 102 on the indoor side of the lower frame 101 of the sash 100, and is operated from the room. However, the conventional auxiliary lock SL has a configuration in which the stopper 2 is accommodated in the case 1 and is supported in a seesaw manner so as to be able to protrude and retract around the support shaft 3 fixed to the case 1. Then, in the unlocked state, when the jagged or knurled portion 2a is pressed to increase the friction coefficient on one side of the stopper 2 housed in the case 1, the other side portion 2b of the stopper 2 The inner sash 200 can be opened to about 15 cm by protruding from the front, but the assembling frame 201 of the sash has abutted against the stopper, so that it cannot be further opened to be in a locked state. That is, FIG.
Stopper 2 protruding from case 1 as shown in FIG.
When the other side portion 2b is pushed, the stopper 2 enters the case and returns to the unlocked state. The case 1 has elasticity for temporarily locking the stopper 2 housed in the case at the time of unlocking, and for temporarily locking the stopper 2 protruding from the case at the position at the time of locking. A locking step 4 is formed.

[0004]

As described above, the conventional auxiliary lock has a structure in which the stopper 2 is simply housed in the case 1 in a seesaw manner so as to be able to come and go, and the stopper is temporarily locked even in the locked state. It is an empty lock, so to speak
The stopper 2 moves to the locked position or the unlocked position simply by pressing one end or the other end thereof. As a result, an outside intruder may easily unlock the auxiliary lock from outside to enter the room, or an infant or a hospitalized patient may accidentally unlock the room indoors.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to prevent easy operation from the outdoor side or the indoor side as described above, and to allow only a specific person to operate. It is an object of the present invention to provide a ventilation auxiliary lock having a lock mechanism and improved security and safety.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a ventilating auxiliary lock in which a stopper is housed in a case in a seesaw manner so as to be retractable by a support shaft. On the side protruding from the case, a rotor having a keyhole facing the front of the case is rotatably provided around a horizontal axis, and a lock piece is housed near the rotor so as to be reciprocally movable in the longitudinal direction of the case. One end of the rotor and the lock piece is pivotally connected to an eccentric position of the rotor, and the other end is connected to the lock piece by a link that is swingably connected to the lock piece, and projects from the case when the stopper is locked. The engaged portion is provided at the end of the portion to be engaged, and the stopper is provided at the end of the lock piece on the stopper side in a state where the stopper is immersed and in a state where the stopper is protruded. Click piece is characterized in that a time unlocking engagement portion and locking during engagement portion to be engaged with the engaged portion of the stopper when moved to the stopper direction. According to the above configuration, when the rotor is rotated to a predetermined angle through the key inserted into the keyhole, the lock piece is disengaged from the engagement position with the stopper, so that the stopper is pushed and protruded from the case to be in a locked state, or reverse. By pressing a stopper protruding from the case, it can be immersed in the case to be in an unlocked state. When the rotor is rotated in the reverse direction to a predetermined angle via the key, the lock piece is moved to a position where it engages with the stopper, and the lock engagement part or unlocking engagement part of the lock piece engages with the stopper engaged part. Therefore, even if the stopper is pushed, it is not unlocked or locked.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a ventilation auxiliary lock according to the present invention mounted on a window sash, FIG. 2 is an operation explanatory view in a state where the auxiliary lock is not locked, (a) is a front view thereof, (B)
Is a plan view, and (c) is a sectional view. 3A and 3B are explanatory views of an operation in a state where the auxiliary lock is locked in an unlocked state, where FIG. 3A is a front view, FIG.
(C) is a sectional view. FIG. 4 is an operation explanatory view in a state where the auxiliary lock is locked in a locked state,
(A) is a front view, (b) is a plan view, and (c) is a cross-sectional view. 5A and 5B are explanatory views showing the configuration of the lock mechanism and a state at the time of unlocking. FIG. 5A is a front view, and FIG. 5B is a cross-sectional view. 6A and 6B are explanatory views showing the configuration of the lock mechanism and the state at the time of locking, where FIG. 6A is a front view and FIG. 6B is a cross-sectional view. 7 and 8 are denoted by the same reference numerals, and redundant description is omitted.

As shown in FIGS. 1 to 4, in the auxiliary lock SL according to the present invention, a stopper 2 is accommodated in a stopper accommodating space 1a in a case 1 by a support shaft 3 so as to be freely retractable in a seesaw manner. Of the case 1 is slightly extended in a direction approaching the sash 102, so that the case 1 is locked in the extended portion. Means storage space s2 is formed,
The lock housing space 1b communicates with the stopper housing space 1a in the case 1.

The lock means accommodating space 1b accommodates a lock means for locking the auxiliary lock itself. As shown in FIGS. 5 and 6, the lock means includes a rotor 5 rotatable by a predetermined key, and a lock reciprocated in the direction of the stopper 2 with one rotation or reverse rotation of the rotor. And a link 7 for connecting the rotor and the lock piece.

[0010] The rotor 5 is formed in a circular rod shape, and has a keyhole 5 a at an end face of a small diameter portion provided at one end portion. The small diameter portion faces the indoor side from a hole 1 c formed at the front of the case 1. Instead, insert a predetermined key into the keyhole 5a and insert the rotor 5
Is held so that it can be rotated in a predetermined direction.

A notch 5b is provided at an intermediate portion in the axial direction of the rotor 5 so as to open at a part of the outer peripheral surface.
Is rotatably supported by the shaft 8 at a position (eccentricity) off the axis of the rotor.

The lock piece 6 is formed in a substantially block shape. The portion on the side of the stopper 2 is formed in a trapezoidal cross section, and a locking engagement portion 6a and an unlocking engagement portion 6b are formed by the front inclined surface and the rear inclined surface of the case, respectively. . The lock piece 6 also has a trumpet-shaped hole or notch 6c formed in the center at the center thereof, with the wide-open side facing the rotor 5 and the stopper 2 at a position closer to the stopper than the rotor 5 in the lock means accommodating space 1b. It is housed so that it can be moved near and far. The other end of the link 7 is inserted into the notch 6 c of the lock piece 6, and is rotatably supported by a shaft 9 behind the notch.

Further, according to the present invention, the engaging portion 2c corresponding to the locking engaging portion 6a and the unlocking engaging portion 6b of the lock piece 6 is provided at the end of the portion of the stopper 2 projecting at the time of locking. Is provided. In FIGS. 2 to 4, 1d is attached to the back of the case 1, and the lock means accommodating space 1b is provided.
, Which holds the rotor 5 rotatably and the lock piece 6 slidably.

Next, the operation of the above configuration will be described. A predetermined key is inserted into the keyhole 5a.
In the example shown in FIG. 5A, when the link 7 is rotated counterclockwise so as to face upward as shown in FIG. 5A, the link 7 is moved rightward as shown in FIG. Is moved rightward, that is, in a direction away from the stopper 2. For this reason, as shown in FIG.
Both the locking engagement portion 6a and the unlocking engagement portion 6b of
The stopper 2 is separated from the engaged portion 2c. Accordingly, the other end 2b of the stopper 2 can be protruded from the front of the case by pushing the one end 2a of the stopper 2 opposite to the keyhole 5a.

Without pressing the stopper 2 in the immersion state shown in FIG.
When the rotor 6 is rotated clockwise in the illustrated example such that the key inserted into the keyhole 5a is turned rightward as shown in FIGS. 6A and 3A, the link 7 is moved to FIG. Since the lock piece 6 is moved to the left as shown, the lock piece 6 is moved in the case 1 to the left, that is, to the direction approaching the stopper 2. Therefore, at this time, as shown in FIG. 3C, the unlocking engagement portion 6b of the lock piece 6 engages with the engaged portion 2c of the stopper located at the retracted position. Therefore, even if one end 2a of the stopper 2 is pushed, the stopper 2 cannot be protruded. That is, the auxiliary lock SL is locked in an unlocked state, and only a specific person having a predetermined key can release the lock.

On the other hand, the keyhole is turned rightward as shown in FIGS. 4 (a) and 6 (a) after pushing the one end 2a of the stopper 2 in the submerged state of FIG. As described above, when the rotor 6 is rotated clockwise in the illustrated example, the lock piece 6 is moved in the case 1 to the left. Therefore, at this time, as shown in FIG. 4C, the locking engagement portion 6a of the lock piece 6 engages with the engaged portion 2c of the stopper located at the projecting position. Therefore, even if the other end 2b of the stopper 2 is pushed, the stopper cannot be immersed. That is, the auxiliary lock SL is locked in a locked state, and similarly, only a specific person having a predetermined key can release the lock.

The above embodiment is an example in which the auxiliary lock of the present invention is attached to a window sash for ventilation, but the auxiliary lock of the present invention is also used at a door, a door, etc. where a single sliding door or a sliding door is built. It doesn't take much to say that it can be used. The keyhole 5a
The shape or direction of the notch is not particularly limited, and the locking character of the rotor 5 and the rotation direction at the time of unlocking can be reversed from the illustrated example depending on the shape or positional relationship of the notch 5b.

[0018]

As described above, the auxiliary tablet according to the present invention comprises:
A rotor having a keyhole facing the front of the case is rotatably provided on the side of the part where the stopper of the case protrudes from the case at the time of locking, and a lock piece is housed near the rotor so as to be reciprocally movable in the longitudinal direction of the case, One end of the rotor and the lock piece are pivotally connected to the eccentric position of the rotor, and the other end is connected by a link pivotally connected to the lock piece so as to swing freely. An engaging portion is provided, and the lock piece engages with an engaged portion of the stopper when the lock piece is moved in the stopper direction in the retracted state and the protruding state of the stopper at the stopper-side end of the lock piece. Since the locking portion and the locking engagement portion are provided, only a specific person can operate it, and the security and security are significantly improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an auxiliary ventilation lock according to the present invention mounted on a window sash.

FIGS. 2A and 2B are operation explanatory views in a state where the auxiliary lock is not locked, where FIG. 2A is a front view, FIG.
(C) is a sectional view.

FIG. 3 is an operation explanatory view in a state where the auxiliary lock is locked in an unlocked state, (a) is a front view,
(B) is a plan view, and (c) is a cross-sectional view.

FIG. 4 is an operation explanatory view in a state where the auxiliary lock is locked in a locked state, (a) is a front view,
(B) is a plan view, and (c) is a cross-sectional view.

FIGS. 5A and 5B are explanatory views showing the configuration of the lock mechanism and a state at the time of unlocking. FIG. 5A is a front view, and FIG.

FIGS. 6A and 6B are explanatory views showing the configuration of the lock mechanism and a state at the time of locking, where FIG. 6A is a front view and FIG. 6B is a cross-sectional view.

FIG. 7 is a perspective view showing a conventional auxiliary lock for ventilation attached to a window sash.

FIG. 8 is an explanatory view of the configuration and operation of the auxiliary lock.

[Explanation of symbols]

 SL auxiliary lock 1 case 2 stopper 2a engaged portion 3 support shaft 4 locking step 5 rotor 6 lock piece 6a unlocking engaging portion 6b locking engaging portion 7 link 8, 9 axis

Claims (1)

[Claims] 1. A ventilating auxiliary lock such as a window sash having a stopper housed in a case so as to be retractable in a seesaw manner in a case by a support shaft, wherein the stopper of the case protrudes from the case when the case is locked. A rotor having a keyhole facing the front of the case is rotatably provided, and a lock piece is received near the rotor so as to be reciprocally movable in the longitudinal direction of the case. The other end is pivotally attached to the eccentric position of the rotor, and the other end is connected by a link pivotally attached to the lock piece, and an engaged portion is provided at an end of a portion protruding from the case when the stopper is locked. At the same time, the lock piece was moved in the stopper direction at the stopper-side end of the lock piece in a state where the stopper was immersed and in a state where the stopper was protruded. Ventilation auxiliary lock the window sash, characterized in that a time unlocking engagement portion and locking during engagement portion to be engaged with the engaged portion of the stopper to come.