JP3834225B2 - Auxiliary lock for sash window - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an auxiliary lock for a sash window, and more particularly to an auxiliary lock for a sash window that prevents the slack due to vibration and the like and prevents the glass door from being illegally opened to improve crime prevention.
[0002]
[Prior art]
Conventionally, a sash window has been provided with a crescent lock to lock the glass door. However, in recent years, with the deterioration of security, in addition to this crescent lock, a movable projecting projecting on the slider by rotating the knob. An auxiliary lock for a sash window is used in which the glass door is fixed so that the side attachment is movable in the contact / separation direction with respect to the fixed side attachment projecting on the main body side.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional sash window auxiliary lock, by rotating the knob, the movable attachment protruding from the slider is separated from the fixed attachment protruding from the main body in the groove of the window frame. The movable door attachment and the fixed attachment attach to each other between the window frame and the glass door so that the glass door is fixed to the window frame.
This knob is attached to the sash window auxiliary lock side so that the sash window auxiliary lock can freely rotate in both the direction of fixing the glass door and the direction of releasing the fixation. Therefore, if the glass door is subjected to strong wind or if the glass door is vibrated in an unauthorized manner, the movable side attachment of the auxiliary lock for the sash window will naturally loosen, and the glass door will be unfixed by the auxiliary lock. There was a problem.
[0004]
In view of the problems of the conventional sash window auxiliary lock, the present invention prevents the sash window auxiliary lock from slacking even if the glass door is subjected to wind pressure or improper methods, thereby improving crime prevention. An object is to provide an auxiliary lock for a sash window.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the sash window auxiliary lock according to the present invention has a movable side projection projecting on the slider by rotating a knob having a spiral ridge formed on the back surface, and a fixed side projecting on the main body side. A finger that protrudes from the knob body of the knob that is rotatably supported in the knob fitting insertion hole formed in the body in the sash window auxiliary lock that is fixed to the attachment so that the glass door can be moved toward and away from the attachment. The pressing operation piece formed on the cam protrudes to the outside of the knob piece at the holding position of the finger of the knob piece that can be rotated with the locking teeth formed on the cam when the cam is not operated. Insert the cam into the cam fitting insertion hole formed in the direction perpendicular to the knob piece through the center of the knob body so that it protrudes to the outer periphery with spring pressure, and pinch the knob piece with your fingers. Together to allow simultaneous presses the pressing operation piece of the cam by the inner peripheral surface of the knob insertion hole and concentric outer peripheral position of the body, the locking teeth engage with said cam during non operation of the cam In order to form a ratchet tooth that regulates the rotation of the knob in the slack direction where the interval between the fixed attachment and the movable attachment is narrow, and allows the rotation of the knob in the tightening direction where the interval between the fixed attachment and the movable attachment opens. It is characterized by that.
[0006]
This auxiliary sash window lock is provided with a cam at a holding position of a knob that is rotatably supported on the main body, and is engaged with the cam when the cam is not operated on the inner peripheral surface of the main body . Engages with the locking teeth of the cam when not in operation, restricts the rotation of the knob in the slack direction where the distance between the fixed attachment and the movable attachment is narrowed, and the interval between the fixed attachment and the movable attachment opens in the tightening direction. Since the ratchet teeth that allow the knob to rotate are formed, the number of parts can be reduced and the configuration can be simplified .
Also , when rotating the knob, unless the cam is simultaneously pressed by pinching this knob, the locking of the cam and the ratchet teeth is not released, so the rotation of the knob in the slack direction can be restricted, and the glass door By preventing the loosening of the auxiliary lock for the sash window even when vibration is applied by wind pressure or an illegal method, and by allowing the knob to rotate in the tightening direction even when the cam is not operated, The sash window auxiliary lock can be easily and reliably attached to the sash window.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an auxiliary lock for a sash window of the present invention will be described with reference to the drawings.
[0008]
1 to 6 show an embodiment of the sash window auxiliary lock of the present invention.
The auxiliary lock for sash window includes an L-shaped main body 1 having a size that can be disposed across a sash insertion movement groove (not shown) of the window frame, and is attached to the main body 1 so as to be movable. The slider 3 is provided with a movable attachment 31 that protrudes from and is fixed in a groove for inserting and moving the sash in cooperation with the fixed attachment 11 that protrudes from the sash. 3 and a ratchet tooth formed on the inner peripheral surface of the main body 1 that is inserted into the knob 4 under a spring pressure so as to allow rotation only in one direction. The cam 5 and the back plate 2 are configured to allow the counterclockwise rotation of the knob by operation.
[0009]
As shown in FIG. 2, the L-shaped main body 1 is integrally formed with a fixed-side attachment 11 protruding laterally at one end of the main body piece 10, and surrounds the outer periphery of the main body piece 10. The side piece 12 is disposed so as to protrude toward the attachment 11 on the fixed side, and the movement direction of the slider 3 is restricted inside the main body piece 10 so as to protrude slightly from the inner surface of the main body piece 10. Guide pieces 14 and 14 for smoothly moving the slider 3 are projected so as to be parallel to each other, and the knob 4 is inserted into a position opposite to the fixed attachment 11 in the lateral direction of the guide pieces 14 and 14. The knob fitting insertion hole 13 is formed so as to penetrate the main body piece 10, and further, the cam 5 is formed by cutting out the outer peripheral portion of the knob fitting insertion hole 13 and a part of the inner surface of the main body piece 10. With the knob engaged A plurality of circles that form the ratchet teeth 15 that allow rotation in one direction, specifically, the tightening direction, and that fix the back plate 2 along the side piece 12 or the inside of the side piece 12. Column-shaped back plate stoppers 16 and 16 are formed to be integrated.
The outer surface of the attachment 11 on the fixed side is formed with a shallow groove 11a for fitting and adhering a buffer plate G such as a rubber plate in order to securely press and fix the sash. In order to fix the back plate 2 to the main body 1 uniformly, a plurality of plate stop pieces 16 are provided along the side pieces 12.
[0010]
As shown in FIG. 3, the back plate 2 has a flat plate shape that is fitted into the side piece 12 on the back side of the main body 1, and a slider in the center in the longitudinal direction of the back plate main body 20. 3 and a guide hole 21 through which the movable attachment 31 protruding from the slider 3 is inserted in a vertically long shape, and a shallow groove for guiding the slider 3 to move and guide at the outer peripheral position of the guide hole 21. The guide groove 22 is formed by grinding the back side of the back plate body 20 in a scissors shape, and the slider 3 is fitted into the guide groove 22 so that the whole or a part of the slider 3 is fitted into the guide groove 22. 22 is moved only in a predetermined direction along the direction 22, and the back plate stopper 16 of the main body 1 is passed through the back plate 2, and the tip of the back plate stopper 16 is crimped to the main body side. Mounting holes 23, 23 are drilled so that they can be fixed. .
Further, on both sides of the guide groove 22, protruding guide pieces 24, 24 are formed so as to protrude slightly so as to allow the turning of the slider body piece 30 inserted into the guide hole 21.
The fixing of the back plate 2 to the main body 1 is not limited to the caulking method, and a screw hole (not shown) is drilled in the main body 1 instead of the back plate stopper piece 16 protruding from the main body 1. The back plate 2 can be attached to the screw holes with screws.
[0011]
As shown in FIG. 4, the slider 3 is inserted into the side piece 12 formed so as to surround the outer periphery of the main body piece 10 and is inserted into the guide groove 22 of the back plate 2 so as to be movable. The slider body piece 30 is provided with teeth 32 that mesh with a spiral ridge 42 that moves the slider 3 by the rotation of the knob 4 on the surface opposite to the movable attachment 31 projecting from the back surface. Protrusively formed.
The movable attachment 31 is inserted into the groove of the window frame sash together with the fixed attachment 11 so as to face each other, for example, a flat plate shape as shown in the figure, and the back surface of the slider 3. When the slider 3 is incorporated in the main body 1, it is opposed to the fixed attachment 11 and moves in the contact / separation direction.
[0012]
As shown in FIGS. 1, 4 (B), and (C), the teeth 32 are of a protruding engagement piece shape that is curved and coincides with the curve of the spiral protrusion 42 protruding on the knob 4 side. A plurality is formed by projecting and arranging in a row along the radial direction of the spiral ridge 42, and the interval between the plurality of tooth pieces is determined by meshing with the spiral ridge 42. Thus, by rotating the knob 4, the slider 3 is configured to move smoothly according to the rotation speed. In addition, the shallow groove | channel 31a is formed in the outer surface of the movable side attachment 31, and the buffer plate G is fitted and stuck on this.
[0013]
As shown in FIG. 5, the knob 4 is provided with a protrusion-shaped knob piece 41 projecting from one side surface of a disk-shaped knob body 40 so that the knob 4 can be easily rotated with fingers. Is formed in a short cylindrical shape that is fitted in the knob fitting insertion hole 13 of the main body 1 so as to rotate smoothly, and a spiral protrusion 42 is provided on the back side of the knob main body 40, A cam insertion hole 43 for inserting the cam 5 is formed in a direction intersecting with the knob piece 41 so as to be integrally formed.
Further, the cam insertion hole 43 formed in the knob body 40 has a shape that allows the coiled spring 6 and the flat cam 5 to be inserted, as shown in FIGS. A groove 44 for inserting the pressing operation piece 51 is formed in the knob piece 41 so as to be electrically connected to the cam fitting insertion hole 43. The spring 6 and the cam 5 are inserted into the cam insertion hole 43 from the inner back.
[0014]
As shown in FIGS. 1 and 6, the cam 5 has a flat plate shape, a pressing operation piece 51 protruding from the upper portion, the base end portion 52 inserted into the cam insertion hole 43 of the knob 4, and the other end Locking teeth 53 that mesh with the ratchet teeth 15 are provided on the side.
The pressing operation piece 51 is inserted into a slit-like groove 44 formed in the knob piece 41 of the knob 4, and a part of the pressing operation piece 51 can be simultaneously pressed as necessary by pinching the knob piece 41. It protrudes to the outside of the knob piece 41.
Further, when the cam 5 is pressed so that the cam 5 slides stably by pressing the cam 5, the locking teeth 53 of the cam 5 come out of the knob fitting insertion hole 13 of the main body 1. The length of the groove 44 into which the locking tooth 53 of the cam 5 and the pressing operation piece 51 of the cam 5 are inserted is set so as not to come out.
[0015]
Next, an assembling method and an operation of the sash window auxiliary lock of the present invention will be described.
First, the spring 6 and the base end portion 52 of the cam 5 are inserted into the cam fitting insertion hole 43 of the knob 4, and the knob 4 is pushed into the knob 4 against the spring pressure, while the knob 4 is pushed behind the main body 1. Then, it is inserted into the knob fitting insertion hole 13. At this time, the main body piece 10 is fitted into the knob fitting insertion hole 13, the knob piece 41 protrudes outside the main body, and the locking tooth 53 of the cam 5 is locked to one of the ratchet teeth 13 of the main body 1 by spring pressure. To come.
Further, a slider 3 is combined with the back plate 2. This is such that the slider body piece 30 is inserted into the guide hole 21 from the inside or outside of the back plate 2 and fits in the guide groove 22 of the back plate 2, and the movable attachment 31 is outward from the back plate 2. Project to
[0016]
Next, the back plate 2 incorporating the slider 3 is applied to the back side of the main body 1 incorporating the knob 4, the back plate stopper 16 is inserted into the mounting hole 23, and the tip of the back plate stopper 16 is caulked. To be united. As a result, the knob 4 freely rotates in the direction in which the movable attachment 31 is separated from the fixed attachment 11 (clockwise), but the ratchet teeth 15 and the locking teeth 53 of the cam 5 are engaged in the counterclockwise direction. Stop and turn around.
However, if the pressing operation piece 51 of the cam 5 is pressed against the spring pressure and the cam 5 is pushed into the cam fitting insertion hole 43 of the knob 4, the locking teeth 53 and the ratchet teeth 15 are locked. The knob 4 can be rotated in the counterclockwise direction. By rotating the knob 4 in the counterclockwise direction, the movable attachment 31 moves toward the fixed attachment 11 and is fixed to the sash. The sash auxiliary lock can be removed.
[0017]
When using the sash window auxiliary lock of the present invention, the main body 1 is arranged so as to cross the sash insertion movement groove of the window sash and to contact the side end surface of the closed glass door as in the conventional case. Set up. At this time, the fixed attachment 11 and the movable attachment 31 are inserted into the sash insertion movement groove.
In this state, when the knob 4 is rotated forward in the locking direction, the slider 3 moves in accordance with the rotation of the knob 4, and the movable attachment 31 moves away from the fixed attachment 11 to move to the fixed attachment. 11 and the movable attachment 31 are fixed to each other in the groove by sticking to each other in the sash insertion movement groove.
When this auxiliary sash window lock is mounted, the rotation of the knob 4 is the rotation allowable direction of the ratchet teeth 15 in the direction away from the cam 5, so that the rotation operation of the knob 4 can be easily performed. The glass door can be locked by the auxiliary lock for the sash window.
[0018]
By the way, in order to remove the auxiliary lock for the sash window attached to the sash, the cam 5 locked to the ratchet teeth 15 does not rotate in the reverse rotation direction of the unlocking direction. The knob 4 does not rotate unless it is removed from the lock 41.
In this case, by pulling the pressing operation piece 51 of the cam 5 against the spring 6 with a finger pinching the knob 4, and releasing the locking by the locking teeth 53 of the cam 5 from the ratchet teeth 15, the ratchet teeth 15 are locked. It can be rotated in the opposite direction.
In this state, when the knob 4 is rotated in the direction opposite to that at the time of locking, the spiral protrusion 42 integrated with the knob 4 is rotated, and the slider 3 meshed with the spiral protrusion 42 is moved. The movable attachment 31 integrated with the slider 3 is moved together to unlock it, that is, the sticking to the sash insertion movement groove is released.
[0019]
As mentioned above, although the auxiliary lock for sash windows of the present invention has been described based on the embodiment thereof, the present invention is not limited to the configuration described in the above embodiment, for example, the cam 5 and the ratchet teeth 15, Instead of being configured to allow rotation of the knob in the tightening direction when the cam 5 is not operated, the knob cannot be rotated unless the cam is pressed simultaneously by pinching the knob, etc. The configuration can be changed as appropriate without departing from the spirit of the invention.
[0020]
【The invention's effect】
According to the auxiliary lock for a sash window of the present invention, the cam is disposed at the holding position of the knob that is rotatably supported by the main body, and the locking teeth of the cam are disposed on the inner peripheral surface of the main body when the cam is not operated. The ratchet teeth that restrict the rotation of the knob in the slack direction where the interval between the fixed attachment and the movable attachment is narrowed and allow the rotation of the knob in the tightening direction where the interval between the fixed attachment and the movable attachment opens. Since they are formed, the number of parts can be reduced and the configuration can be simplified .
Also , when rotating the knob, unless the cam is simultaneously pressed by pinching this knob, the locking of the cam and the ratchet teeth is not released, so the rotation of the knob in the slack direction can be restricted, and the glass door Even if vibration is applied by wind pressure or an unauthorized method, the sash window auxiliary lock will not loosen, improving security, and allowing the knob to rotate in the tightening direction even when the cam is not operated. By comprising in this way, attachment to the sash window of the auxiliary lock for sash windows can be performed easily and reliably.
The cam can be easily pressed with one hand by pinching the knob.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of an auxiliary lock for a sash window according to the present invention.
2A is a front view, FIG. 2B is a back view, FIG. 2C is a side view, FIG. 2D is a plan view, and FIG. 2E is a cross-sectional view.
3A is a front view, FIG. 3B is a rear view, FIG. 3C is a plan view, and FIG. 3D is a side view.
4A is a front view, FIG. 4B is a back view, FIG. 4C is a side view, and FIG. 4D is a bottom view.
5A is a front view, FIG. 5B is a left side view, FIG. 5C is a right side view, and FIG. 5D is a rear view.
6A and 6B show a cam, in which FIG. 6A is a front view and FIG. 6B is a plan view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 10 Main body piece 11 Fixed side attachment 12 Side piece 13 Knob fitting insertion hole 15 Ratchet tooth 16 Back plate stopper piece 2 Back plate 21 Guide hole 22 Guide groove 24 Guide piece 3 Slider 30 Slider main piece 31 Movable attachment 32 Teeth 4 Knob 40 Knob body 41 Knob piece 42 Spiral ridge 43 Cam fitting insertion hole 44 Groove 5 Cam 51 Pressing operation piece 52 Base end 53 Locking tooth 6 Spring

Claims (1)

The glass door is fixed so that the movable attachment projecting on the slider can be moved toward and away from the stationary attachment projecting on the main body by rotating the knob with the spiral protrusion on the back. In the sash window auxiliary lock, the finger holding position of the knob piece that can be rotated with the fingers projecting on the knob body of the knob that is rotatably supported in the knob fitting insertion hole formed in the main body, The push operation piece formed on the cam protrudes to the outside of the knob piece, and when the cam is not operated, the locking tooth formed on the cam protrudes to the outer periphery of the knob body so that the knob body passes through the center of the knob body. The cam can be pressed simultaneously by pressing the cam into the cam insertion hole formed in the direction perpendicular to the piece with spring pressure and pinching the knob piece with fingers. While, on the inner peripheral surface of the knob insertion hole and concentric peripheral position of the body, said engaging and locking teeth of the cam during non operation of the cam, the distance of the fixed attachment and the movable attachment An auxiliary lock for a sash window, characterized by forming a ratchet tooth that restricts the rotation of the knob in the loosening direction and allows the rotation of the knob in the tightening direction in which the interval between the fixed attachment and the movable attachment is increased .

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