TW201544669A - A safety lock with an additional security improvement - Google Patents

Abstract

The present invention relates to a safety lock which comprises a case; a bolt member mounted movable in the case and displaceable, when in use, by means of rotation of a key in the lock between a first position and a second position corresponding, respectively, to the open condition and to the closed condition of the lock. Said safety lock further comprises an upper sliding bar, lower sliding bar, an additional deadbolt within the case having an additional lock member and additional deadbolt movably mounted in the case and, when in use, translatable by rotation of a second key in the additional lock between a first position and a second position corresponding, respectively, to the open condition and to the closed condition of the additional lock. Said additional lock member comprises at least one blockage pin which is shaped and dimensioned to engage with corresponding protrusion provided at least one of sliding bars, when the additional lock is in the closed condition, which block the movement of the deadbolt and sliding bars.

Description

Security lock with additional security improvements

The present invention relates to a safety lock for high security use, generally installed for doors, entrances and exits, safes, etc., and more particularly, a tumbler plate lock and an additional blockage pin The safety lock of the lock, the blocking pin ensures that the safety lock resists any behavior that falls within the range of lock picking.

In particular, the present invention relates to a type of "plate lock", "lever lock", "double-sided lock" and "tumbler lock". Security locks of the type are widely practiced in the art, and each of the security locks of the type described above can be opened/closed by a special key that is preferably provided with double-sided or one-sided tailpieces. The security lock has at least one latch, also referred to as a gorge or tumbler, inside the housing associated with the plurality of panels, and the spring-latch is used with the key to The tumbler moves from the advanced closed position to the retracted open position.

The locking mechanism that opens and closes the lock is equipped with a distinctive channel cut that establishes the contour of the operating key when the cuts are aligned. The interaction of one of the key teeth with the edge of the notch causes a plurality of tumblers to move. An unauthorized person may use a picklock for tensioning the bolt members in the opening direction in an attempt to slowly and selectively raise the respective safety panels to detect the corresponding available position. To that extent, it is very important to keep the position of the multiple plates in the security lock for any type of illegal opening. Unauthorized persons may attempt to raise individual security tumblers to detect the corresponding available location. It is therefore contemplated that the keyhole of the above type of lock can be manipulated by an unauthorized person retracting the bolt with a shackle tool or the like and applying excessive force.

Further, the bolt member can be tensioned in the opening direction by the push rod, and then the operating instrument is inserted, and the bolt is pushed upward by the rotation of the instrument itself. The shackle tool simulates the presence of a key in the lock. One of the solutions according to the prior art relies at least partially closing the keyhole by means of a sheet for preventing the retraction of the tumbler.

Different types of locking mechanisms have been developed to prevent the bolts from retracting into the tumble lock. Prior art publications in the field of the invention may also be referred to DE 19906271, which discloses a lock bolt/latch lock with a mobile safety mechanism. The lock includes a one-piece built-in safety mechanism or a second cylinder lock with a projection to prevent the lock hole from being at least partially closed when in the locked state. Prior art documents EP 903 455 and WO 2009/057170 describe locks provided with security devices that are designed to utilize the "sensing" technique to prevent hacking of attempts.

The present invention provides a configuration associated with a tethered panel lock having a conventional cylinder, which is defined by the depicted features as defined in claim 1 of the scope of the patent application.

SUMMARY OF THE INVENTION A primary object of the present invention is to overcome the problems described and to provide a lock with an additional lock having a blocking pin for blocking the tumbler and the slide bar that prevents the lock from being retracted by violent and/or tampering.

Another object of the present invention is to provide a security lock with additional security improvements that can be used on both sides when needed without any significant changes.

The drawings are presented separately for the purpose of illustrating a security lock, the advantages of which are superior to the prior art outlined above and will be briefly explained below.

The present invention relates to a safety lock comprising a housing; a bolt member movably mounted in the housing and replaceable, when in use, by rotating a key in the lock between the first position and the second position The first position and the second position respectively correspond to the open state and the closed state of the lock. The safety lock further includes an upper slide bar, a lower slide bar, an additional door latch in the housing having the additional lock member, and the additional door latch is movably mounted in the housing and, when in use, is rotated by the first position The second key in the additional lock between the second positions is displaceable, and the first position and the second position respectively correspond to the open state and the closed state of the additional lock. The additional lock member includes at least one blocking pin shaped and cut into engagement with a corresponding protrusion, the corresponding protrusion being disposed on the at least one slide bar, which blocks the door latch and the slide bar when the additional lock is in the closed state The movement.

The following symbolic symbols are used in the detailed description of the invention: Tumbler (11) Latch (12) Guide pin (13) Bolt member slot (14) Toothed window (15) Spring latch (16) Security lock (17) Upper slide lever (18a) Lower slide lever (18b) Bolt member (19) Cover body (20) Additional lock (21) Blocking pin (22) Actuator (23) Locking hole (24) Housing (25) Key (27 ) protrusion (28) additional latch (29) upper slide slot (30) slide bar slot (31) member slot (32) safety lock pin (34) additional lock pin (35) tooth (36) Upper slide pin (37)

The present invention relates to a safety lock (17) including a rigid box-shaped casing (25) in which a first position and a second position respectively correspond to an open state and a closed state of the lock; and a housing (25) A plurality of tumblers (11), also known as lock throats or plates; additional locks (21), and replaceable by means of a key in the lock. The safety lock (17) contains a conventional type of spring latch (16) that telescopically pushes into a position that is extracted from the housing (25).

As shown in Fig. 1, the cover body (20) is removed, and the safety lock (17) has a rectangular tumbler (11) formed by two long sides and two short sides, and each tumbler (11) It generally has a rectangular shaped opening called a toothed window (15). A plurality of tumblers (11), also referred to as slots or lock throats provided with slots, are attached to the internal volume of the rigid housing (25) of the safety lock (17) (21) )use together.

Figure 2 shows the retracted position of the actuator (23) with the additional latch (29). The door latch (12) includes a bolt member (19) that extends through the housing and matches a plurality of tumblers (11) having a guide pin (13). Each tumbler (11) has a toothed window (15) in which the guide pin (13) moves when the key is inserted into the lock and rotated. A guide pin (13) projecting laterally from the bolt member (19) passes through the toothed window (15) of all the tumblers (11). The guide pin (13) is guided by the tumbled toothed window based on the rotation of the key and determines the position of the latch (12).

First, a key (27) having a double tooth with a specific notch and a convex profile is preferably inserted inside the keyhole (24) and rotated. When the key (27) is introduced into the keyhole (24) and rotated about its axis, preferably four turns, and the serrated edges of the bitted key are successively brought into contact with the edge portion of the tumbler (11). The interaction of one of the teeth of the key (27) with the edge of the recess causes a plurality of tumblers to move. Each turn of the toothed key in the keyhole is considered to be 180 degrees about its axis such that four turns represent twice the 360 degrees around its axis.

The bolt member (19) is movably mounted in the frame and replaceable by means of rotation of a key (27) in the safety lock (17) between the first position and the second position, and the first position is The second position corresponds to the open state and the closed state of the lock, respectively. The tumbler (11) is provided with a toothed window (15) that is substantially connected to each other and has a serrated edge. The teeth of the key engage the corresponding tumblers (11), and if the key (27) has the correct profile, the respective tumblers (11) are moved until they are aligned. It is well known in the art that each revolution of the key causes the panel to rise at a particular height. Therefore, it is extremely important to maintain the position of the plurality of plates in the security lock (17) for any illegal opening. Unauthorized persons may attempt to raise individual security tumblers (11) to detect the corresponding available location. The number of tumblers (11) ranges between 3 and 9, preferably between 5 and 7.

In a preferred embodiment of the invention, the additional lock (21) is configured to move separately from the tumbler (11). When the key of the tumbler lock (27) reaches its preferred four-rotation end; it initiates a complete travel of the bolt member (19) and simultaneously induces the upper slide (18a) and the slide (18b) The vertical displacement is shown in Figures 4 and 6a. The upper slide bar (18a) and the slide bar (18b) are configured to be synchronized based on the key rotation via the relationship between the pin and the slot defined on the upper slide bar (18a) and the slide bar (18b). Move on the ground.

As shown in Figures 6a and 6b, the tether plate lock and the additional lock (21) are in communication with the slide bars (18a, 18b), but the latch (12) and the additional latch (29) The displacements are configured to move separately from each other. The basic idea of the invention is to prevent a plurality of tumblers (11) and slide bars (18a, 18b) from moving due to shackles. To that extent, the additional lock (21) contains a guide pin (13) that projects laterally from the actuator (23) that blocks the displacement of the tumbler (11), and when the additional lock (21) is in Figure 3 Sliders (18a, 18b) when in the closed position shown. It is to be noted that the number of revolutions of the key (27) can be varied, which is four of the tumbler locks of the selected defined toothed window (15). In addition, the bolt member (19) has a bolt member slot (14).

The bolt member (19) is formed of a metal plate slidably mounted in the casing (25) and has an edge facing the welded door latch (12), and the door latch (12) slides through a corresponding opening made by the side wall of the casing Ground installation. The introduction and rotation of the authorization key (27) in the safety lock (17) enables control of the displacement of the bolt member (19) between the position corresponding to the open state of the lock and the position corresponding to the closed state of the lock, in the lock The latch (12) in the open position is retracted into the housing (25), and the latch (12) in the closed position of the lock protrudes outside the housing (25) and is received to be fixed to the door post In the seat made of the frame, the door post is disposed adjacent to the door on which the safety lock (17) is mounted. At the same time, the upper slide bar (18a) and the lower slide bar (18b) are configured to move vertically (-Y, +Y) simultaneously with respect to the axis of the latch (12), wherein the latch (12) is in the -X and +X directions. Pull out and retract in the upper casing.

The slide bar (18b) is provided with an elongated slide bar slot (31), and the actuator (23) is provided with an elongated member slot (32). The additional locking pin (35) is guided in both the lower rod slot (31) and the member slot (32). The pawl of the cylinder lock that is rotated based on the second key lock engages the recess of the actuator (23) and moves the actuator (23) and the additional latch (29) of the additional lock (21). In a preferred embodiment, a conventional cylinder is used for the displacement of the actuator (23). Still another possibility is that the projection (28) of the slide bar (18b) can be disposed on the upper slide bar (18a).

As shown in Fig. 2, the actuator (23) includes at least one blocking pin (22) shaped and cut into engagement with a corresponding projection (28), the corresponding projection (28) being at least provided On one of the sliders (18a, 18b), when the additional lock (21) is in the closed state, in order to prevent movement of the latch (12) based on its horizontal axis (-X, +X), and at least one slider (18a) , 18b) resists any illegal opening based on the movement of its vertical axis (-Y, +Y).

It is to be understood that the use of an additional lock (21) enhances the security lock (17) against any unauthorized attempt. As shown in Figures 2 and 3, the additional lock (21) includes an additional latch (29) slidably mounted by a corresponding opening formed in the side wall of the housing; and is also slidably mounted to the housing The actuator (23) formed by the plate in (25). In addition, the upper slide bar (18a) and the lower slide bar (18b) are in communication with the slots and pins placed on the rod and bolt members (19).

Figure 2 shows the displacement of the additional lock (21) between the position corresponding to the open state of the lock and the position corresponding to the closed state of the lock, the additional latch in the open state of the lock being retracted into the housing, and As shown in Fig. 3, the additional latch (29) at the position of the closed state of the lock protrudes outside the casing (25). When the additional lock (21) is in the closed state, the laterally blocking pin (22) of the actuator (23) engages with the corresponding projection of the slide bar (18b). When the projection of the slide bar (18b) is engaged with the blocking pin (22) of the additional lock, the retraction of the plurality of tumblers and the displacement of the slide bars (18a, 18b) are blocked. A slide bar slot (31) in the upper slider pin (37) and the additional lock pin (35) is accommodated to move the upper slider (18a) in synchronization with the tumbler (11) based on the rotation of the key (27) ) and the sliding rod (18b).

As mentioned previously, the blocking pin (22) is advanced to the projection (28) by means of a conventional cylinder to limit the vertical (-Y, +Y) displacement of the slide bars (18a, 18b). An unauthorized person may attempt to raise each single safety tumbler (11) to detect the corresponding available position, even if he successfully detects the corresponding available position, the retraction of the plurality of tumblers (11) It will remain in the predetermined position by blocking the vertical displacement of the slide bars (18a, 18b) and the horizontal position of the bolt member (19). The main object of the present invention is achieved by the addition of a blocking pin (22) which is retained when the additional lock (21) is in its fully retracted position and ensures resistance to intrusion. Such as the protection of shackles.

When the authorized person wants to release the safety lock, first, he retracts the additional latch (29) by means of a conventional type of cylindrical lock, and then releases the bolt with the tumbler (11) device. The slide bar (18b) defines an elongated upper slide slot (30) in which the pin is guided and engages a slot corresponding to the bolt member (19), and likewise, the slide bar (18b) defines an additional lock pin therein (35) An elongated slide bar slot (31) that is guided and engaged with a member slot (32) corresponding to the actuator (23). The member slot (32) is provided with an elongated hole in the actuator (23) through which the additional locking pin (35) passes.

When the guide pin (13) of the actuator (23) is in the closed state, it holds a plurality of sheets and sliders. The upper and lower slide bars (18a, 18b) and the bolt members (19) have elongated slots in which the pins are also guided for vertical movement and horizontal movement.

The operation of the additional lock (21) shown in the figure is generally equivalent to one turn, and the operation of the tether plate lock is generally equivalent to more than one turn, which must repeat the necessary number of turns to make the teeth based on the tumbler (11) The lock of the length of the window (15) is fully opened/closed. The tumble plate locking mechanism of the safety lock (17) shown in Fig. 4 is in the open/first position, and the rotation of the key (27) triggers a plurality of tumblers (11) to project the housing (25) The outside. The safety lock pin (34) is guided in a slot provided in the upper slide bar (18a), the slide bar (18b), and the bolt member (19) that passes through the upper slide bar (18a) and the slide bar (18b).

It is to be noted that the primary object of the present invention is to effectively block tucking in a locked state with a configuration of the blocking pin (22). It constitutes an effective and reliable solution to eliminate the displacement of the tumbler (11) and the slide bars (18a, 18b) using the blocking pin (22) and the additional lock (21). The invention ensures that the safety of the safety lock (17) is enhanced not only by the additional lock (21) but also by the blocking pin (22) of the additional lock (21) which maintains the system blockage.

By means of a suitable tool, an unauthorized person can force the bolt member (19) to force it to retract, and by means of the second tool, the superimposed tumbler (11) is released one by one until the bolt member (19) Release completely. This attack may cause the latch (12) to retract. The blocking of the sliders (18a, 18b) and the bolt members (19) by the stable engagement of the blocking pin (22) of the actuator (23) with the projections (28), so as to act on the invading tool The means of retracting the door latch is impossible.

The actuator (23) of the additional lock (21) as shown in Fig. 3 has a bolt and has a member slot (32). The lower edge of the actuator (23) has at least one tooth (36) on which the pawl acting as a cylinder lock, in the throwing or withdrawing (-X, +X) direction, Replace it by one or two laps. The number of teeth (36) under the actuator (23) may be greater than that shown in the drawings, in which case the total displacement will need to exceed one turn of the cylinder lock.

11‧‧‧Tip
12‧‧‧Latch
13‧‧‧Guidance pin
14‧‧‧Bolt member slot
15‧‧‧toothed window
16‧‧‧Spring latch
17‧‧‧Security lock
18a‧‧‧Upper slider
18b‧‧‧sliding rod
19‧‧‧Bolt components
20‧‧‧ cover
21‧‧‧Additional lock
22‧‧‧Blocking pin
23‧‧‧Actuator
24‧‧‧Keyhole
25‧‧‧shell
27‧‧‧ key
28‧‧‧Protruding
29‧‧‧Additional latch
30‧‧‧Upper slider slot
31‧‧‧Sliding rod slot
32‧‧‧Component slot
34‧‧‧Safety lock pin
35‧‧‧Additional lock pin
36‧‧‧ teeth
37‧‧‧Upper slide pin

The drawings are not intended to limit the scope of protection identified in the scope of the claims, nor should they be construed as a purely .

Figure 1 is a perspective view showing a security lock in which a cover is removed to show an internal volume in accordance with the present invention.

Figure 2 is a top plan view of some of the lock assemblies showing the security lock in accordance with the present invention.

Figure 3 is a top plan view showing some of the lock assemblies of the security lock in which the additional lock is in the closed state in accordance with the present invention.

Figure 4 is a top plan view showing a security lock in which the cover is removed to show the internal volume in accordance with the present invention.

Figure 5a is a perspective view showing a security lock in accordance with the present invention in which the cover is removed to show the internal volume and the additional lock in the open state.

Figure 5b is a perspective view showing a security lock in accordance with the present invention in which the cover is removed to show the internal volume and the additional lock in the closed state.

Figure 6a is a top plan view showing a security lock in accordance with the present invention in which the cover is removed to show the internal volume and the additional lock in the closed state.

Figure 6b is a top plan view showing a security lock in accordance with the present invention in which the cover is removed to show the internal volume and the additional lock in the open state.

11‧‧‧Tip

12‧‧‧Latch

13‧‧‧Guidance pin

14‧‧‧Bolt member slot

15‧‧‧toothed window

16‧‧‧Spring latch

17‧‧‧Security lock

18a‧‧‧Upper slider

18b‧‧‧sliding rod

19‧‧‧Bolt components

22‧‧‧Blocking pin

25‧‧‧shell

27‧‧‧ key

37‧‧‧Upper slide pin

Claims (8)

A safety lock (17) comprising: a housing (25); a bolt member (19) for moving at least one latch (12); and a plurality of stacked tumblers (11) each having a tooth shape a window (15), wherein a guide pin (13) of the bolt member (19) is adapted to be movably, movably mounted in the housing (25) and replaceable, in use, by rotation a means for a key (27) between a position and a second position, the first position and the second position respectively corresponding to an open state and a closed state of the safety lock (17); at least one upper slide bar and The slide bar (18a, 18b) is in a path and is configured to move in synchronism with the bolt member (19); an additional lock (21) having an actuator for moving an additional latch (29) ( 23) the additional latch (29) is movably mounted in the housing (25) and, in use, by rotating the additional lock (21) between the first position and the second position Displaceable by a second key, the first position and the second position respectively correspond to an open state and a closed state of the additional lock (21), wherein the actuator (23) package Forming and cutting into at least one blocking pin (22) that engages with a corresponding protrusion (28), the corresponding protrusion (28) being disposed at least on one of the upper slider and the lower slider (18a, 18b) When the additional lock (21) is in the closed state, in order to prevent (i) the movement of the latch (12) based on its horizontal axis (-X, +X), and (ii) at least one of the upper sliders and the slide The rods (18a, 18b) resist any illegal opening based on the movement of their vertical axis (-Y, +Y). The security lock (17) of claim 1, wherein the additional lock (21) comprises a cylinder having a pawl that is rotated based on the second key, the cylinder being defined with the actuator ( 23) At least one of the teeth (36) on the lower side engages and moves the actuator (23) and the additional latch (29). The safety lock (17) of claim 1, wherein the upper slide bar (18a) and the slide bar (18b) respectively comprise an elongated at least one upper slide slot (30) and at least one slide a rod slot (31), in the upper slider slot (30) and the sliding rod slot (31), an upper slider pin (37) and an additional locking pin (35) are included to base the key ( The rotation of 27) moves the upper slide bar (18a) and the slide bar (18b) in synchronization with the plurality of tumblers (11). The security lock (17) of claim 1, wherein each of the plurality of tumblers (11) comprises a rectangular shaped toothed window (15) and the guide pin (13) is received therein At least one slot. The security lock (17) of claim 2, wherein the guide pin (13) is passed through the toothed window (15) of the plurality of tumblers (11) that are rotated based on the key (27). Guiding, and determining the position of the latch (12), the guide pin (13) projects laterally from the bolt member (19) and passes through a plurality of the toothed windows of all of the plurality of tumblers (11) ( 15). A security lock (17) according to any one of the preceding claims, wherein the number of the plurality of tumblers (11) ranges between 3 and 9, preferably between 5 and 7. The safety lock (17) of claim 2, wherein the safety lock (17) comprises a groove provided by the upper sliding bar (18a), the sliding bar (18b) and the bolt member (19) A safety lock pin (34) guided in the hole. The security lock (17) of claim 2, wherein the actuator (23) is provided with an elongated member slot (32).