JP4374175B2 - Unlocking prevention tool for lever type locking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a safety unlocking device that prevents a lever-type locking device provided in an opening / closing fixture such as a doorway or a window of a building from being opened easily from the outside during locking.
[0002]
[Prior art]
In general, in order to ensure safety when going out or sleeping at the doorway and windows of a veranda etc. in a building, a lever-type locking device (crescent lock) is attached to the opening and closing fitting so that it can be locked from the indoor side. ing.
[0003]
[Problems to be solved by the invention]
By the way, the lever-type locking device as described above can be unlocked and locked by rotating the lever, so an intruder from the outside for the purpose of a hollow nest or the like can be attached to a doorway or a fitting such as a window. Partially divide the stretched glass near the lever-type locking device, put your hand in the room from there, rotate the lever to unlock the lever-type locking device, then open the joinery and open the room In recent years, it is the actual situation that the damage of the vacant nest by this method has increased, and if the inhabitant is at home when entering the vacant nest for the purpose, it will be transformed into a burglar Since there is a danger, a proposal of means for preventing the lever-type locking device from being easily unlocked is awaited.
[0004]
Therefore, the object of the present invention is to prevent the lever-type locking device from being easily unlocked even if the glass of the joinery is partially broken and a hand is put into the room, thereby preventing damage to the empty nest. An object of the present invention is to provide an unlocking prevention tool for a lever-type locking device.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a projection of a lever in a locking posture of the lever-type locking device with respect to a fitting to which a lever-type locking device is attached in which the lever is oriented in one of the vertical directions at the locking position. A base member is fixed at a close position on the side, and an outer member is provided to the base member from an end opposite to the lever in the locking posture, and is provided on both side fitting surfaces of the base member and the outer member. attached to form fitted by aligning fit of the groove and ridges, to the outer member, by the external fitting inserted into the base member, the outer fitting recess you fitted to the lever in the locking position of the lever-type locking device, In order to fix this outer member to the base member with a screw, it is provided so as to open at the front side and one end side in the length direction, and a screw insertion hole is provided at the end of the outer member, At the position corresponding to the insertion hole Is obtained by employing the structure in which a scan of the threaded hole.
[0006]
The base member is formed in a block shape, and the outer member is formed in a case shape in which a recessed portion that fits outside the base member is opened on the back surface and one end side in the length direction. The insertion / removal along the length direction of the member is induced by the fitting of the groove and the protrusion provided on the fitting surface of the both, and the outer fitting portion provided on the outer member has a length equal to that of the front surface of the outer member. It can be set as the structure formed of the ditch | groove open | released at the one end side of a direction.
[0007]
The base member is fixed to the position near the protruding side of the lever in the locking position by a screw or adhesive to the fitting with the lever type locking device attached, and the locking state of the lever type locking device is maintained. When the outer member is fitted and inserted into the base member from the end opposite to the lever by fitting the groove and the protrusion, the groove provided on the front surface of the outer member is fitted to the lever. In this state, if the outer member is fixed to the base member by means such as a screw, the lever in the locked position that is housed in the groove of the outer member becomes incapable of rotating from the outside, and the glass of the joinery Even if it is partially broken and a hand is put into the room from there, the lever-type locking device cannot be easily unlocked, and the damage to the empty nest can be prevented beforehand.
[0008]
Also, when opening the joinery, after loosening the screws, the outer member can be removed from the base member, and the outer member can be rotated in the unlocking direction by removing the concave groove from the lever. Become.
[0009]
In addition, from the past results of vacant nest damage, when breaking the glass of joinery, if you divide it into a size that humans can enter directly, it will make a loud noise and will be known to the surroundings, It is customary to partially divide the position close to the lever-type locking device and insert a hand into the room from there to try to unlock the lever-type locking device. Even if the lever is inserted, it is possible to effectively prevent the damage of the empty nest only by preventing the lever from being unlocked.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
First, FIG. 3 thru | or FIG. 5 shows an example of the lever-type locking device 1 attached to the doorway to a veranda etc. in a building, a window, etc., and on the outer surface of the base metal fitting 2 fixed to one fitting A with a screw, A set of a locking device main body 6 in which a locking metal fitting 4 provided with a lever 3 is rotatably attached by a pivot 5 and a hook metal fitting 7 fixed to the other fitting B so that the locking metal fitting 4 can be engaged and disengaged. For example, when the locking bracket 4 is rotated so that the lever 3 faces upward, the locking bracket 4 engages with the hook bracket 7 to be locked, and conversely, the lever 3 is rotated downward. Then, the locking metal fitting 4 is detached from the hook metal fitting 7 and is unlocked.
[0012]
The unlocking prevention tool 11 of the lever-type locking device 1 includes a base member 12 that is fixed to a fitting A to which the locking device main body 6 is attached, and a removable outer member 13 that is externally fitted to the base member 12. The outer member 13 is provided with an outer fitting recess 14 to the lever 3 in the locking posture of the lever-type locking device 1 when the outer member 13 is inserted into the base member 12, and the outer member 13 is fixed to the base member 12. Can be made.
[0013]
The base member 12 and the outer member 13 are made of, for example, hard synthetic resin. The base member 12 is formed in a square block shape and is in a locking posture with respect to the fitting A to which the locking device body 6 is attached. The lever 3 is fixed at a position close to the protruding side of the lever 3 by a screw 22 screwed into the fitting A from the screw insertion hole 21 or by an adhesive. In the case of illustration, the base member 12 is fixed at a position above the locking device body 6.
[0014]
The outer member 13 is formed in a vertically long case shape in which a recessed portion 15 that is externally fitted to the base member 12 is opened at one end side in the longitudinal direction with respect to the back surface. The insertion / removal along the length direction of 13 is induced by the fitting of the groove 16 and the protrusion 17 provided on both side fitting surfaces, and the external fitting recess 14 to the lever 3 provided on the outer member 13. Is formed by a concave groove provided so as to open at the front surface of the outer member 13 and one end side in the length direction. The concave groove 16 and the protrusion 17 may be a combination of ants and ant grooves.
[0015]
The outer member 13 externally fitted to the base member 12 is secured to the base member 12 by securing an insertion hole 19 for the screw 18 at the end of the outer member 13 at a position corresponding to the insertion hole 19 of the base member 12. The screw 18 is formed with a screw hole 20 so that the screw 18 can be screwed and removed with a tool such as a screwdriver or a hexagon wrench so that it cannot be easily removed from the outside. What is necessary is just to set the position in which the screw hole 20 is provided.
[0016]
The thickness of the base member 12 and the outer member 13 fitted to the base member 12 is such that the groove bottom of the outer fitting recess 14 of the outer member 13 inserted and fitted to the base member 12 does not interfere with the lever 3, and the outer fitting recess 14 is set so that the lever 3 is accommodated inside 14.
[0017]
By the way, some lever type locking devices 1 have the lever 3 facing downward in the locked state. In this case, the unlocking prevention tool 11 may be disposed at a lower position with respect to the locking device main body 6. Since the interval between the fitting surface of the lever-type locking device 1 and the opposing surface of the lever 3 varies depending on the manufacturer, model, size, etc., several types of base members 12 having different thicknesses are prepared. The thickness of the lever-type locking device 1 can be selected by selecting one having a thickness that meets one condition, or by fixing and using a plurality of base members 12 in a superposed state. You may make it match | combine with these conditions.
FIG. 2C shows an example in which the thickness of the base member 12 can be adjusted. The base member 12 includes a plate-like mounting base 12a that is long and fixed to the joinery A, and the mounting base 12a. The mounting base 12a, the expansion base 12b, and the expansion base 12b are connected to each other by a dovetail 23 and a dovetail groove 24 provided on the overlapping surface so that they can be inserted and removed. The base 12a and the extension base 12b are fixed by screwing or bonding, and the outer member 13 formed in the shape of a rectangular block that is vertically long on the front surface of the foremost extension base 12b is similarly detachably connected by a dovetail 23 and a dovetail groove 24. , It is fixed to the additional base 12b with screws.
[0018]
The unlocking prevention tool 11 of the present invention is configured as described above. As shown in FIG. 3, the base member 12 is placed at the upper position of the locking device body 6 with respect to the fitting A, and the vertical direction of the fitting A is Fix along the vertical direction.
[0019]
In this state, the base member 12 does not interfere with the lever 3, so that the locking metal fitting 4 can be unlocked and the locking operation can be freely performed via the lever 3. FIG. 3 shows an unlocked state in which the lever 3 faces downward. The fittings A and B can be opened and closed.
[0020]
As shown in FIG. 4, when the fitting 3 is rotated to the locking position by the lever 3 with the fittings A and B closed, the locking fitting 4 is engaged with the hook fitting 7 and locked. It faces the front surface of the member 12 in a standing state.
[0021]
In this locked state, when the outer member 13 is fitted and inserted into the base member 12 from the upper end, the outer fitting recess 14 provided on the front side of the outer member 13 is fitted to the lever 3 as shown in FIG. Thereafter, the outer member 13 is fixed to the base member 12 with a screw 18 screwed into the screw hole 20 from the insertion hole 19.
[0022]
As described above, with the outer member 13 fixed to the base member 12, the glass stretched on the fitting A is partially broken at a position close to the lever-type locking device 1, and the hand is put into the room from there. Even if the lever-type locking device 1 is to be unlocked, the lever 3 is housed in the external fitting recess 14 of the unlocking prevention tool 11 fixed to the fitting A and cannot be turned by hand. Unlocking is not possible, and the operation of unscrewing the screw 18 and extracting the outer member 13 is extremely difficult and time consuming from the outside of the room. Since there is no such thing, it will give up the intrusion into the room, and it is possible to prevent the crime of vacant nests.
[0023]
When it is no longer necessary to hold the locked state by the unlocking prevention tool 11, the lever 3 becomes free if the screw 18 is loosened and the outer member 13 is removed from the base member 12, so that the locking bracket 4 is opened. It can be rotated to the locked position.
[0024]
【The invention's effect】
As described above, according to the present invention, when the outer member is detachable with respect to the base member fixed to the fitting to which the lever-type locking device is attached, the lever-type locking device is in the locking posture when the outer member is inserted into the base member. Since an outer fitting part to a certain lever is provided and this outer member can be fixed to the base member, the lever of the locked lever type locking device is accommodated in the outer fitting part, and it is rotated from the outside. Since the operation becomes impossible, even if you try to unlock the lever-type locking device by partially breaking the position near the lever-type locking device on the glass stretched on the joinery, The lever-type locking device cannot be unlocked because it cannot be turned by hand, so that the vacant nest will give up the intrusion into the room, and the vacant nest crime can be prevented before it happens. So that can go out and the like.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an unlocking prevention device according to the present invention. FIG. 2A is a longitudinal front view showing an assembled state of the unlocking prevention device attached to a joinery, and FIG. FIG. 3C is a cross-sectional plan view showing an example in which the thickness of the base member can be adjusted. FIG. 3 is a perspective view showing the unlocked state of the lever-type locking device attached to the joinery and the base member. FIG. 5 is a perspective view showing the locking state of the lever-type locking device attached to the joinery and the base member. FIG. 5 is a perspective view showing the relationship between the locking state of the lever-type locking device attached to the joinery and the unlocking prevention tool.
DESCRIPTION OF SYMBOLS 1 Lever type locking device 2 Base metal fitting 3 Lever 4 Locking metal fitting 5 Pivot 7 Hook metal fitting 11 Lock prevention tool 12 Base member 13 Outer member 14 Outer fitting recessed part 15 Recessed part 16 Recessed groove 17 Projection 18 Screw 19 Insertion hole 20 Screw hole

Claims (1)

The base member (12) is placed close to the protruding side of the lever (3) in the locking position of the lever-type locking device with respect to the fitting with the lever-type locking device attached to the lever at the locking position. The outer member (13) is fixed to the base member (12) from the end opposite to the lever (3) in the locking posture, and the base member (12) and both sides of the outer member (13) are fixed. The lever is attached to the outer member (13) by fitting into the outer member (13) by fitting the concave groove (16) and the ridge (17) provided on the fitting surface, and is inserted into the base member (12) . the lever (3) fitted to that fitted recess (14) in the locking position of formula locking device, arranged to open at the front side and the lengthwise direction of the one end, the base member the outer member (13) (12) for immobilizing a screw (18) with respect to An insertion hole (19) for the screw (18) is provided at the end of the outer member (13), and a screw hole (20) for the screw (18) is provided at a position corresponding to the insertion hole (19) of the base member (12). Unlocking prevention tool of lever type locking device provided with

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