KR100421692B1 - Lock on sliding windows - Google Patents

Abstract

The present invention relates to a sliding device for a sliding window to prevent the window from being opened arbitrarily when the window is closed, and improves its structure so that the window is automatically locked only by closing the window without installing hooks and hooks. In order to prevent the intruder from invading through the window from the outside in advance.

To this end, a housing 9 installed inside the window frame 1, a latch 12 installed rotatably in the housing and provided with a locking protrusion 10 and a stopper surface 11 on an outer circumferential surface thereof, Latch pivot means for pivoting the latch 12, which is rotatably installed in the housing, and rotatably installed around the pin 19 at the lower side of the latch to be exposed to the outside through the through hole 9a or accommodated in the housing. Cam plate 18 provided with a locking groove 15 for receiving the locking projections and a locking groove 17 for receiving the locking projections, a coil spring 20 connected between the housing and the cam plate, the window frame frame 4 or the corresponding Is fixed to the window frame (1) is fitted in the locking groove 17 of the cam plate 18 is composed of a clamp 16 to maintain the locked state of the window.

Description

Locking device for sliding windows {omitted}

The present invention relates to a lock of a sliding window for preventing the window from being opened arbitrarily when the window is closed.

In general, a sliding window is installed on the wall of the building for the purpose of ventilation of the room, and therefore, installation of a locking device for preventing an intruder from outside through the window is required.

1 is an exploded perspective view showing an embodiment of a conventional device and FIG. 2 is a longitudinal cross-sectional view of the coupled state of FIG. 1, in which a hook 2 is fixed to a window frame 1 with a screw 3 and a window frame corresponding thereto. A bracket 5 is fixed to the frame 4 or the window with another screw 6, and the bracket is provided with a screw 8 with a half-moon hook 7 rotatably.

Therefore, in the state shown by the solid line of FIG. 2, even when the window is closed, the hook 7 is released from the hook 2 so that the window can be opened.

If you want to lock the window in this state, when the hook (7) is rotated in the direction of the arrow to be fitted to the hook (2), such as one-dot chain line to maintain the locked state of the window can not open the window from the outside.

However, such a conventional device must be hooked to the hook 2 when the window is closed to maintain the locked state of the window, so inadvertently going out without hanging the hook in the closed window In other words, when they went to bed, they were able to intrude from outside.

In addition, there is a problem that the opening and closing operation of the window is inconvenient because the handle is not provided in the sliding window.

The present invention has been made to solve such a conventional problem, by improving its structure to close the window automatically without installing hooks and hooks to automatically lock the window to intruder from outside through the window The purpose is to prevent the phenomenon in advance.

According to an aspect of the present invention for achieving the above object, a latch provided with a housing provided inside the window frame, rotatably installed in the housing and provided with a locking projection and a stopper surface on an outer circumferential surface thereof, and rotatable to the housing. The latch rotating means for rotating the installed latch, and the locking groove that is installed to be rotated around the pin at the lower side of the latch to be exposed to the outside through the through hole, or is accommodated in the housing and the locking projection is accommodated in the housing Locking the sliding window comprising a cam plate provided, a coil spring connected between the housing and the cam plate, and a clamp fixed to the window frame frame or a corresponding window frame to be inserted into the locking groove of the cam plate to maintain the locked state of the window. An apparatus is provided.

1 is an exploded perspective view showing a conventional locking device

Figure 2 is a longitudinal cross-sectional view of the coupled state of FIG.

3 is an exploded perspective view showing the configuration of the present invention

4a and 4c is an operating state diagram of the present invention,

Figure 4a is a window open state

Figure 4b is a window locked state

4c is a state in which the locked state of the window is released

Figure 5a is a longitudinal sectional view showing a second embodiment of the latch turning means of the present invention Figure 5b is a cross sectional view showing a third embodiment of the latch turning means of the present invention

Explanation of symbols for main parts in the drawings

1: window frame 4: window frame

9: housing 10: locking protrusion

11: stopper surface 12: latch

13: handle 15: locking groove

16: clamp 17: locking groove

18: cam plate 20: coil spring

Hereinafter, the present invention will be described in more detail with reference to FIGS. 3 and 4 as an embodiment.

Figure 3 is an exploded perspective view showing the configuration of the present invention and Figures 4a and 4b is an operating state of the present invention, the present invention is provided with a housing 9 in the interior of the window frame (1) and the outer peripheral surface in the housing The latch 12 having the locking protrusion 10 is rotatably installed so that the latch rotates automatically when the window is closed, or is rotated artificially in one direction by the latch rotating means.

As the latch rotating means, as shown in FIGS. 3 and 4, the shaft 14, which is the center point of the latch 12, is extended to be exposed to the outside of the window frame 1, and a handle ( 13) to be fixed.

The above type is easily applicable when the present invention is installed on the window frame 1 connected to the window frame frame 4, but in this case, the present invention should be installed on the window frame 1 which is generally composed of two. do.

However, when the present invention is applied to the connection part of the window frame, only one may be installed. However, the window frame is shifted from each other, so that the fasteners 16 are installed at these connection parts. Unlike, there is a limit to the application of the handle, accordingly the configuration of the latch rotation means should be different.

Figure 5a is a longitudinal sectional view showing a second embodiment of the latch rotation means of the present invention and Figure 5b is a cross-sectional view showing a third embodiment of the latch rotation means of the present invention, Figure 5a is a window frame to which the present invention is installed Push button 11 is elastically installed on one side of (1) with a spring 21 so as to be able to move back and forth, and one end of the latch 12 forms a protrusion 22 to which a push button end is connected to push button 11. The latch 12 is configured to rotate in accordance with the pressing operation.

5b is elastically installed by the spring 21 to enable the pushbutton 11 to move forward and backward on the front of the window frame 1, but the tip portion of the pushbutton is configured to have a tapered surface 11a and tapered to the latch 12 The latch 12 is rotated at an angle as the cutout portion 12c to which the surface is connected is pressed and the pushbutton 11 is pressed on the front surface of the window frame 1.

The cutout portion 12c formed in the latch 12 should have a tapered surface 11a connected to the rotational direction surface of the latch 12 in a state where the window is opened, and the latch (12) can be pressed by pressing the pushbutton 11. Even if 12) is rotated in one direction, the length L of the notch 12c must be set so that the other surface of the notch 12c is not interfered with.

In addition, a cam plate 18 having a locking groove 15 for receiving the locking protrusion 10 and a locking groove 17 for receiving the catch 16 on the lower side of the latch 12 is centered around the pin 19. Is rotatably installed and exposed to the outside through the through hole (9a) or accommodated in the housing (9), the coil spring (20) is connected between the housing (9) and the cam plate (18) is the locking groove When the locking projection 10 is not inserted in the part 15, a part of the cam plate 18 is exposed to the outside of the housing 9 through the through hole 9a as shown in FIG. 4A by the restoring force of the coil spring 20. .

One end of the coil spring 20 is fixed to the latch 12 and the other end is fixed to the cam plate 18 so that the coil spring 20 is tensioned and has a restoring force when the cam plate is rotated.

And the cam plate 18 in a state in which the window is closed on any one of the connection surface of the window frame frame 4 or the window frame 1 as shown in Fig. 5 shown in another embodiment as shown in Figs. The lock 16 is inserted into the locking groove 17 of the lock to hold the window locked.

The first inclined surface 12a constituting the engaging protrusion 10 formed on the latch 12 and the second inclined surface 18a formed on the cam plate 18 and connected to the first inclined surface are cam plates 18 in a state in which they are connected. ) Is formed to match the curvature radius R1 of the cam plate 18 so as to be able to rotate about the pin 19 and is formed on the third inclined surface 12b and the cam plate 18 on the other side formed in the latch 12. The fourth inclined surface 18b to which the third inclined surface 12b is connected is matched with the radius of curvature R2 of the latch 12 so that the latch 12 rotates about the shaft 14 while the third inclined surface 12b is connected. Formed.

In the present invention configured as described above, the operation will be described by taking the state in which the handle 13 is coupled to the latch 12 by the shaft 14 by the latch rotation means as an example.

First, in the state in which the window is opened as shown in FIG. 4A, the locking protrusion 10 formed in the latch 12 is separated from the locking groove 15 formed in the cam plate 18, so that the cam plate 18 of the coil spring 20 is removed. The first inclined surface 12a formed on the latch 12 is connected to the fourth inclined surface 18b formed on the cam plate 18 by holding the pin 19 in the counterclockwise direction as much as possible by the restoring force. The coil spring 20 caught between the cam plate and the cam plate is in a compressed state.

As a result, a part of the cam plate 18 is exposed to the outside of the housing 9 through the through hole 9a. In this state, the locking groove 17 formed in the cam plate 18 is inclined.

As described above, the window frame frame 4 is placed on the locking groove 17 exposed to the outside of the housing 9 by closing the window in a state in which the user grips the handle 13 exposed to the outside of the window while the window is open. When the fastener 16 fixed to) starts to close, the cam plate 18 which has been rotated counterclockwise starts to rotate clockwise while tensioning the coil spring 20.

As described above, when the cam plate 18 starts to rotate by the catch 16, the first inclined surface 12a formed on the latch 12 formed of the same curvature radius R2 of the second inclined surface 18a formed on the cam plate 18 is formed. Since the clockwise rotation along the latch 12 is rotated counterclockwise while tensioning the coil spring (20).

After the cam plate 18 is completely rotated by the clamp 16 due to the subsequent closing operation of the window, the locking protrusion 10 of the latch 12 is inserted into the locking groove 15 formed in the cam plate 18 as shown in FIG. 4B. At the same time, since the clamp 16 is fitted into the locking groove 17 formed in the cam plate 18, the locked state of the window is maintained.

Therefore, it is possible to maintain the locked state of the window by closing the window can not be intruded through the window from the outside.

In this state, when the user grips the handle 13 to open the window and pulls the handle in the opening direction of the window, the locking groove 15 of the third inclined surface 12b formed on the latch 12 and the cam plate 18 is held. The fourth inclined surface 18b formed at the same has the same radius of curvature R2, so that the latch 12 rotates slightly counterclockwise about the shaft 14, so that the locking protrusion 10 is the locking groove of the cam plate 18. The cam plate 18, which was rotated clockwise around the pin 19 while tensioning the coil spring 20, is disengaged from 15, and rotates counterclockwise as shown in FIG. Since the window is opened automatically, the window can be opened. Meanwhile, when the push button 11 is pressed while the window is locked as shown in FIG. 5A of the second embodiment of the latch rotating means, the tip of the push button 11 is opened. Press the protrusion 22 formed on the latch 12 to counterclockwise the latch 12. Direction so that the latching projection 10 of the latch 12 is released from the locking groove 15 formed in the cam plate 18 and the cam plate 18 is rotated counterclockwise by the restoring force of the coil spring 20. Therefore, the locked state of the window is released, and thus, the unlocked window can be opened. Meanwhile, by pressing the push button 11, the latch 12 is rotated by an angle to open the locked window and the push button ( Even if the external force is removed from 11, the fourth inclined surface 18b formed on the cam plate 18 is connected to the first inclined surface 12a of the latch 12, and at the same time, they are connected by the coil spring 20 so that the latch 12 And the position of the cam plate 18 is not changed. Further, even when the push button 11 is pressed while the window is locked, as shown in FIG. 5B of the third embodiment, the taper formed at the tip of the push button 11 Since the surface 11a pushes the notch 12c formed in the latch 12, The latch rotates in the counterclockwise direction in the section L of the cutout, whereby the locking protrusion 10 of the latch 12 is separated from the locking groove 15 formed in the cam plate 18 and at the same time the cam plate 18. ) Is rotated counterclockwise by the restoring force of the coil spring 20, so that the locked state of the window is released. Accordingly, the unlocked window can be opened. On the other hand, by pressing the pushbutton 11 The fourth inclined surface 18b formed on the cam plate 18 is connected to the first inclined surface 12a of the latch 12 even when the latch 12 is rotated at an angle to open the locked window and the external force is removed from the pushbutton 11. At the same time they are connected by the coil spring 20 so that the position of the latch 12 and the cam plate 18 is not variable.

As described above, in the present invention, when the closed window is closed, the latch is caught by the locking groove of the cam plate and the cam plate is supported by the latch so that the locked state of the window is automatically maintained. Intrusion is prevented in advance.

In addition, the handle is provided to release the latching state of the latch and the cam plate when the window is opened, the opening and closing operation of the window is much easier.

Moreover, the structure is simple and the thickness is also thin, so that the effect can be easily installed in a relatively narrow window frame.

Claims (4)

A sliding window locking device for releasing a locking device of a window by rotating a handle, the sliding device comprising: a housing installed inside the window frame, a latch installed in the housing so as to be rotatable and provided with a locking projection and a stopper surface on an outer circumferential surface thereof; Latch pivot means for pivoting a latch rotatably installed in the housing, and a locking groove and a clamp provided at a lower side of the latch so as to be rotatable around the pin to be exposed to the outside through a through hole or accommodated in the housing and accommodated in the housing. The cam plate is provided with a locking groove that is accommodated, the coil spring is connected between the housing and the cam plate, and is fixed to the window frame frame or the corresponding window frame is fitted in the locking groove of the cam plate, characterized in that the locking mechanism for maintaining the locked state of the window Locks for sliding windows. delete The method of claim 1, The latch rotation means is a locking device for a sliding window, characterized in that the push button is elastically installed on the one side of the window frame to be retractable with a spring, and one end of the latch is formed with a protrusion connected to the tip of the push button. The method of claim 1, The latch rotation means is provided with a spring to the push button on the front of the window frame to be retractable, the front end of the push button is configured to have a tapered surface, the latch is characterized in that the cut-out portion is connected to the tapered surface is formed Lock on sliding windows.