JP2004036281A - Auxiliary lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an auxiliary lock capable of preventing a window from being prized open and broken. <P>SOLUTION: The auxiliary comprises a lock body 10 fixed to an opening frame 1 and a socket 11 fixed to the window 2 and engaging with a lock pin 14 provided to the lock body 10. The lock body 10 includes a case 12, a slider 13 supported on the case 12 in a state to freely make reciprocative displacement, the lock pin 14 fixed to the slider 13 and an operating device 15 for making a switching operation of the slider 13 to a waiting position and an engaging position from an indoor side. The lock pin 14 includes a shaft section 30 capable of sliding along an engaging groove provided to a socket 11 and a control section 31 formed by projecting from the shaft section 30. When the window 2 is operated by prizing it, outward external force getting a window frame 2A move to an outdoor side is received by the shaft section 30, and sideways external force getting the window frame 2A move to the direction separated from the opening frame 1 is received by the control section 31 to resist the forced opening of the window 2. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an auxiliary lock applied to a window or the like, particularly to an auxiliary lock for preventing a window from being opened by a crowbar.
[0002]
[Prior art]
Most of the windows can be locked only from the indoor side, and it is not possible to attempt illegal unlocking such as picking like a front door. For this reason, most of the illegal intrusions from the windows are broken intrusions such as breaking the window glass and unlocking the locking device, or forcibly opening the windows with a crowbar or the like to enter the room indoors.
[0003]
In order to combat such illegal intrusion, it is recommended to provide an auxiliary lock separately from the main lock device. Here, the main purpose is to prolong the time until all the lock devices are unlocked or to destroy all the lock devices so that the lock devices are easily visible and give up the intrusion. By the way, there are statistical results that about 60% of those who try to intrude illegally give up if the time required for intrusion exceeds 5 minutes, and about 80% if the time required for intrusion exceeds 10 minutes. This confirms the effect of the previous security measures.
[0004]
[Problems to be solved by the invention]
As described above, when a plurality of lock devices are provided in a window, illegal intrusion can be attempted and the crime prevention effect can be improved as compared with a case where the window is locked only by the main lock device. However, even if a plurality of lock devices are provided, they can hardly counter destructive unauthorized intrusions such as digging, and cannot be an effective defense means. This is because the conventional auxiliary lock added to the window has a structure that prevents the opening operation of the window, as in the main locking device, and cannot effectively cope with opening the window.
[0005]
Incidentally, window frames and opening frames in recent years are often formed of aluminum strips which are softer than steel sashes and are therefore easily deformed. Cause. In other words, destruction-type intrusion is recognized as a simple intrusion method that does not require picking and other skills for those who decide to enter illegally, and can simply destroy the window with brute force. There is a need for effective countermeasures as well as the damage caused by digging.
[0006]
2. Description of the Related Art There is an opening / closing device that opens and closes a window by rotating an operation handle on a window whose one end is swingably supported by a hinge. Here, the worm gear is rocked by a worm shaft that is rotated by an operation handle, and the reciprocating rocking operation of the worm gear is transmitted to the window by a link to open and close the window. This type of opening and closing device can operate the worm gear only from the worm shaft side, and cannot transmit the operation in the reverse direction. Therefore, the window can be fixedly held at the closed position only by the opening / closing device, but when the window is repeatedly shaved and opened, the window frame itself is gradually deformed, or the intermediate transmission member such as a link is deformed, Eventually, there is a case where a gap is formed between the window frame and the opening frame, and a hand is inserted through the gap to open the opening / closing device.
[0007]
An object of the present invention is to prevent the window from being greatly deformed against the force of opening by a bar or the like, and therefore, it takes a lot of time for destruction and intrusion, and the determination of a person who tries to intrude by that much is required. It is an object of the present invention to provide an auxiliary lock excellent in crime prevention effect that can be attempted by giving up a crime during the intrusion and giving up the crime during the invasion.
[0008]
[Means for Solving the Problems]
The auxiliary lock of the present invention comprises a lock body 10 fixed to the opening frame 1 and a socket 11 fixed to the window 2 and engaged with a lock pin 14 provided on the lock body 10. In the locked state where the window 2 is engaged, the opening of the window 2 can be prevented.
[0009]
For this purpose, the lock body 10 includes a case 12, a slider 13 supported by the case 12 so as to be reciprocally displaceable, a lock pin 14 fixed to the slider 13, and a lock position between the standby position and the engagement position from the indoor side. And an operation tool 15 for performing a switching operation. The lock pin 14 includes a shaft portion 30 that can be engaged and slid along an engagement groove provided in the socket 11, and a regulating portion 31 that protrudes from the shaft portion 30. Thus, when the window 2 is scoured and opened, an outward external force for displacing the window frame 2A to the outside is received by the shaft portion 30 and the window frame 2A is displaced away from the opening frame 1. The lateral external force described above is received by the regulating portion 31 so as to resist opening of the window 2.
[0010]
The slider 13 and the lock pin 14 are vertically slidably guided and supported on the case 12, and a click mechanism for holding the slider 13 at the standby position and the engagement position is provided between the case 12 and the slider 13. .
[0011]
The restricting portion 31 can be formed so as to protrude in a flange shape from the protruding end of the shaft portion 30. The operation tool 15 includes an operation arm 34 fixed to the slider 13 and an operation knob 36 fixed to an end of the operation arm 34 on the indoor side.
[0012]
Operation and Effect of the Invention
In the present invention, an auxiliary lock is constituted by a lock body 10 fixed to the opening frame 1 and a socket 11 fixed to the window 2 and engaged with a lock pin 14 provided on the lock body 10, and When the opening operation is performed, an outward external force for displacing the window frame 2A to the outside is received by the shaft portion 30 of the lock pin 14, and the lateral direction for displacing the window frame 2A in a direction away from the opening frame 1 is received. The external force is received by the regulating portion 31 provided on the protruding end side of the shaft portion 30 to prevent the window 2 from being opened.
[0013]
That is, the large deformation of the window frame due to the digging is restricted by the engagement between the lock pin 14 and the socket 11, so that much labor and time are indispensable to complete the destructive intrusion. Therefore, as much time is required for the destructive intrusion of the window 2, the determination of the person attempting the illegal intrusion can be slowed down and the crime can be abandoned during the intrusion, and the attempt can be attempted.
[0014]
According to the auxiliary lock that guides and supports the slider 13 and the lock pin 14 in the case 12 so that the slider 13 and the lock pin 14 can slide up and down, the lock main body 10 can be made compact. Can be mounted without any problem, and the overall structure of the lock body 10 can be simplified. If a click mechanism is provided between the case 12 and the slider 13, the slider 13 can be held at the standby position and the engagement position, so that the slider 13 and the lock pin 14 that have been switched to the engaged state can be opened. It is possible to prevent the window 2 from returning to the standby state due to an impact or external force at the time, and to reliably prevent the window 2 from being deformed.
[0015]
When the restricting portion 31 is formed in a protruding manner at the protruding end of the shaft portion 30 of the lock pin 14 in a flange shape, that is, in a circular shape, the structural strength of the restricting portion 31 in a state in which the socket 11 is received increases, and the Since the deformation stress of the restricting portion 31 with respect to the lateral external force can be increased, the deformation of the window 2 due to the opening can be surely restricted, and the labor and time required for breaking in and entering can be further increased.
[0016]
If the operation tool 15 is composed of the operation arm 34 fixed to the slider 13 and the operation knob 36 fixed to the indoor side end of the operation arm 34, the structure of the opening frame 1 and the window 2 may be different. Since the operation knob 36 can be replaced in response to this, even when there is a difference in sash maker or a difference in window structure, it is advantageous in that the lock parts except the operation knob 36 can be shared.
[0017]
【Example】
1 to 8 show a first embodiment in which the auxiliary lock according to the present invention is applied to a swing window. In FIG. 2, reference numeral 1 denotes an opening frame, 2 denotes a window, and 3 denotes a hinge for supporting the window 2 so that it can swing open and close. An opening and closing mechanism for opening and closing the window 2 is provided between the opening frame 1 and the window 2. The auxiliary lock of the present invention is provided between the window-side frame 2A on the swinging tip side of the window 2 and the vertical frame 1A of the opening frame 1.
[0018]
As shown in FIG. 2, the opening / closing mechanism includes a gear unit 5 mounted on the lower frame 1B of the opening frame 1, a handle 6 for rotating the gear unit 5, and a link for transmitting the reciprocating swing operation of the gear unit 5 to the window 2. It is composed of a bar 7 and the like. The gear unit 5 includes a worm shaft, a drive arm 8 integrally provided with the worm gear, and a case 9 for accommodating the worm shaft. The worm gear can be operated only from the worm shaft side, and the operation is transmitted in the opposite direction. Can not.
[0019]
In FIG. 3, an auxiliary lock according to the present invention includes a lock body 10 fixed to a vertical frame 1A of an opening frame 1 and a socket fixed to a window side frame 2A of a window 2 and engaged with a lock pin 14 provided on the lock body 10. In the locked state in which the lock pin 14 engages with the socket 11, it functions to prevent the opening of the window 2 from being opened.
[0020]
The lock body 10 includes a case 12 made of a stainless steel press fitting, a slider 13 supported by the case 12 so as to be reciprocally displaceable, a lock pin 14 fixed to the slider 13, and a state in which the slider 13 is moved from the indoor side to a standby position. An operation tool 15 is provided for switching to the engagement position.
[0021]
In FIG. 4, the case 12 has a vertically long box frame-shaped guide frame 16, and fastening seats 17 are integrally formed at both upper and lower ends of the guide frame 16. A guide groove 18 for the lock pin 14 and a guide groove 19 for the operating tool 15 are provided on the lateral side wall of the guide frame 16 and the front side wall on the indoor side, respectively. An engagement hole 20 forming a click mechanism is formed along the latter guide groove 19.
[0022]
The slider 13 is made of a plate-shaped plastic block as shown in FIG. 4, and a seating surface 23 for fixing the operation tool 15 is formed on one surface thereof, and spring holes 24 are formed at two upper and lower positions on the front side surface on the indoor side. Is formed. The seat surface 23 is provided with a pin hole 25 for fixing the lock pin 14 and a positioning pin 26 which is engaged with the operation arm 34. The lower spring hole 24 accommodates a compression coil-shaped spring 27 and a steel ball 28 constituting a click mechanism.
[0023]
The lock pin 14 is formed by performing a turning process on a stainless steel bar, and has a shaft portion 30 formed of a round shaft, a flange-shaped regulating portion 31 formed to protrude at the tip of the shaft portion 30, and a base of the shaft portion 30. An end caulking shaft portion 32 is integrally provided. As shown in FIG. 5, after the caulking shaft portion 32 is inserted into the pin hole 25 and the operation arm 34 of the operation tool 15, the lock pin 14, the slider 13 and the operation tool 15 are integrated by caulking the protruding end. Become
[0024]
In FIG. 3, the operation tool 15 includes an operation arm 34 fixed to the slider 13 and an operation knob 36 fixed to a room-side end of the operation arm 34 with a screw 35. In this embodiment, when the window 2 is closed, the sealing wall 37 provided on the vertical frame 1A receives the front surface of the window side frame 2A, so that the operation is performed through the opening 38 formed in the sealing wall 37 as shown in FIG. The arm 34 protrudes toward the room.
[0025]
In order to improve the appearance of the peripheral portion of the through-hole 38, a decorative cover 39 is press-fitted to the through-hole 38, and a watertight state and an airtight state are maintained on the inner surface thereof. A shielding plate 40 is disposed. The operation tool 15 is switched between a lower standby position and an upper engagement position. At each switching position, the shielding plate 40 closes a slit 41 formed in the decorative cover 39 from the inner surface.
[0026]
3 and 4, the socket 11 is formed of the same stainless steel box frame as the case 12, and an engagement groove 44 for receiving the shaft portion 30 of the lock pin 14 is formed in a lateral side wall and a bottom wall of the box frame portion. , And an opening 45 that allows the restricting portion 31 to enter and exit is formed continuously. Fastening seats 46 are integrally provided above and below the box frame portion.
[0027]
As shown in FIG. 6, the lock body 10 and the socket 11 are fixed to the vertical frame 1A and the window side frame 2A with screws 48 and 49 with the guide frame 16 and the box frame facing each other. In the state where the operating tool 15 is located at the lower standby position, the lock pin 14 is below the box frame portion of the socket 11 as shown by the imaginary line in FIG. 6, and in this state, as shown in FIG. 28 engages with the lower engagement hole 20 to hold the position of the operation tool 15, and the window 2 can be freely opened and closed by operating the support mechanism.
[0028]
After the window 2 is closed, when the operating tool 15 is slid to the upper engagement position as shown in FIG. 8, the lock pin 14 engages with the engagement groove 44 of the socket 11 to restrict the opening of the window 2. Further, the destruction of the window 2 due to the opening is prevented. At this time, the ball 28 is engaged with the upper engagement hole 20. Note that the lock body 10 and the socket 11 can be installed at a plurality of positions in the vertical direction according to the vertical dimension of the window 2, and the lock pins of the lock bodies 10 can be 14 may be simultaneously operated to switch from the standby position to the engagement position.
[0029]
As shown in FIG. 1, when trying to open the window 2 with the crowbar T, the window frame on the swinging tip side tends to deform to the outdoor side (this external force is called outward external force). Since the window frame tends to deform away from the vertical frame 1A (this external force is referred to as a lateral external force), the window frame tends to deform obliquely outdoors by combining both deformation operations. At this time, the shaft portion 30 of the lock pin 14 comes into contact with the engagement groove 44 and faces the outward external force. However, when the deformation of the window frame progresses due to the repeated application of external force, the engagement groove 44 eventually comes off the shaft portion 30 and the window 2 is opened.
[0030]
However, since the restricting portion 31 is provided at the protruding end of the shaft portion 30, the restricting portion 31 can receive the inner peripheral surface of the engaging groove 44 before the deformation of the window frame, and can resist the lateral external force. Therefore, as long as one of the restricting portion 31 and the socket 11 is not broken, the deformation of the window 2 can be prevented from further progressing, and the trouble and time required for breaking and entering the window 2 can be prolonged. The fact that each of the socket 11, the case 12, and the lock pin 14 is formed of a stainless material having sufficient strength than an aluminum alloy also contributes to making it difficult to open the window 2.
[0031]
The lock body 10 and the socket 11 can be used in any case regardless of the difference between the left and right sides. For example, when the window 2 has a side opposite to that of the embodiment supported by the hinge 3, the lock body 10 and the socket 11 may be turned upside down and fixed to the vertical frame 1A and the window side frame 2A.
[0032]
In the previous embodiment, the opening 38 was formed in the seal wall 37 and the operation arm 34 was made to protrude from the opening 38 to the indoor side. However, this is not necessary, and the sealing material provided on the seal wall 37 and the window 2 can be used. The operation arm 34 may be provided in a state of bypassing the space. The restricting portion 31 does not need to be formed in a flange shape, but may be formed so as to cross the engaging groove 44 in and out. For example, a pin or a bolt may be fixed near the protruding end of the shaft portion 30 to form the restricting portion 31.
[0033]
FIG. 9 shows another embodiment of the present invention relating to the slider 13 and the click mechanism. Here, a pair of elastic arms 51 are integrally formed above and below the outer surface of the slider 13, and an engagement recess 52 is provided near the tip of the elastic arm 51. Further, ribs 53 are provided on the inner surface of the outer wall of the outer wall of the case 12 so as to engage with the engaging recesses 52, and these members constitute a click mechanism. The slider 13 can be positioned by engaging the engagement recess 52 with the rib 53. Other components are the same as those of the previous embodiment, and therefore, the same members are denoted by the same reference numerals and description thereof will be omitted.
[0034]
The slider 13 and the lock pin 14 can be pivotally displaced about the axis to be disengaged from the engagement groove 44. In this case, the engagement groove 44 may be formed in a partial arc shape. Further, the operating tool 15 can be pivotally supported so as to be vertically swingable. The opening / closing mechanism is not limited to the structure of the embodiment, and may be a lifting device that can adjust the opening amount of the window 2 between the closed position and the ventilation open position.
[Brief description of the drawings]
FIG. 1 is a cross-sectional plan view illustrating the opening of a window. FIG. 2 is a cross-sectional plan view of a window. FIG. 3 is an exploded perspective view of an auxiliary lock. FIG. 4 is an exploded cross-sectional view of an auxiliary lock. FIG. 6 is a front view of the auxiliary lock in a locked state. FIG. 7 is a vertical side view of the auxiliary lock in an unlocked state. FIG. 8 is a vertical side view of the auxiliary lock in a locked state. 9 A partially broken side view showing another embodiment of the present invention relating to a slider and a click mechanism.
DESCRIPTION OF SYMBOLS 1 Opening frame 2 Window 2A Window frame 10 Lock body 11 Socket 12 Case 13 Slider 14 Lock pin 15 Operating tool 30 Shaft part 31 Control part 34 Operating arm 36 Operating knob

Claims (4)

In the locked state in which the lock body 10 is fixed to the opening frame 1 and the socket 11 is fixed to the window 2 and engages with the lock pin 14 provided on the lock body 10, and the lock pin 14 engages with the socket 11. , An auxiliary lock that can prevent the opening of the window 2,
The lock body 10 includes a case 12, a slider 13 supported by the case 12 so as to be reciprocally displaceable, a lock pin 14 fixed to the slider 13, and an operation of switching the slider 13 from the indoor side to a standby position and an engagement position. Operating tool 15 that performs
The lock pin 14 includes a shaft portion 30 that can be engaged and slid along an engagement groove provided in the socket 11, and a regulating portion 31 that protrudes from the shaft portion 30.
When the window 2 is scoured, an external force for displacing the window frame 2A to the outside is received by the shaft portion 30, and the window frame 2A is displaced in a direction away from the opening frame 1. Auxiliary lock that can receive external force at the regulating part 31. The slider 13 and the lock pin 14 are guided and supported by the case 12 so as to be slidable up and down.
2. The auxiliary lock according to claim 1, wherein a click mechanism for holding the slider at the standby position and the engagement position is provided between the case and the slider. The auxiliary lock according to claim 1, wherein the restricting portion (31) is formed to protrude in a flange shape from a protruding end of the shaft portion (30). The auxiliary lock according to claim 1, wherein the operation tool (15) comprises an operation arm (34) fixed to the slider (13), and an operation knob (36) fixed to the indoor side end of the operation arm (34).

Images