DE1553557A1 - Chain lock combined with an alarm device - Google Patents

Description

General Alarm Corporation, in New York, Έ. Y., USA

Chain lock combined with an alarm device

The invention relates to a lock combined with an alarm device, in particular a lock which is provided with a chain and which has a limited opening, e.g. B. a door, with respect to a fixed part, e.g. The door frame, as well as a device for triggering an alarm when a predetermined force is exerted against the open door and the chain is tensioned, or - certain aspects of the invention relate to this case - when the door is completely closed.

So far, a number of have been using alarm devices combined locks proposed that trigger a bell through a mechanical link or clockwork,

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- if the chain is under excessive tensile stress. These are locks associated with alarm devices but on the market probably because of the [ease with that a potential intruder can reach in through the partially open door and muffle the sound of the bell can, not successfully. In some cases, bells were placed consistently on the door frame within easy reach of one The person standing in front of the door was installed, unscrewed or rendered inoperable, and too many alarm devices were installed built that only gave a signal as long as the predetermined tensile stress was exerted on the chain, so that the signal could be switched off simply by weakening the pressure exerted on the door or the chain, as soon as the intruder heard the alarm signal, and possibly before anyone heard the signal attempted break-in became aware.

The inventive combined with an alarm device Chain lock is effective in practical use, and inexpensive on the market because it eliminates the above-mentioned difficulties and eliminates disadvantages. The aim of the invention is therefore to create such a chain lock, which between parts executing a relative movement to one another, in particular * 'between door and door frame, can be installed and is characterized by the fact that a switch that is open in the rest position, a Switch operating device which is attached to one of said parts, e.g. B. the door frame, attached and to move the switch can be moved into the closed position, an alarm device and a

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Switch pin are provided that a flexible chain at one end by means of a screw with the switch actuating device and at the other end to the second part to be secured, e.g. B. the door, that the chain is connected to the Switch actuating device upon application of a predetermined force to one of said parts for movement this part moves in relation to the other in the switch closed position, and that the chain of one of the said Parts is removable. The term "chain" is to be understood as meaning a flexible / elongated part that is used for the is suitable for the purpose described here. One aspect of the invention also relates to the installation of a lock that is arranged to trigger the alarm when a predetermined one Force is exerted against the completely closed and locked door.

ι *

It is a feature of the invention that the alarm device near the door or in any suitable location away from the door, and that the alarm signal can of course be visual and / or acoustic. It is particularly advantageous to use the alarm device to be surrounded with a housing, If the system z. B. next to the Door is attached to prevent unauthorized tampering by potential intruders.

The switch operating device can be rotatable from a single point of view mounted lever, which can be moved against the force of an adjustable spring, and has a device, by the 'the switch in the said rotary movement in the

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Closed position is shifted. The chain is connected to the lever and sets it in motion as soon as a corresponding tension is exerted on the chain. The spring is adjustable, so_j3.ass that to trigger the The power required by the alarm can be adapted to the particular circumstances of each individual system. In an inventive Embodiment, the housing takes on the function of the above lever that it is used when a predetermined force on the door against the force of a spring is inclined. The housing can also be used for actuation the alarm switch can be used in the event that an attempt is made to force the blocked door to open or break open.

Another feature of the invention is that the lever or the housing not only actuates the switch, but that the alarm signal continues to sound when the force exerted against the door is reduced when the lever or the housing is in This is achieved without loosely playing relays through an opening in the lever or the housing which is shaped so that it takes a switch pin with it, closes the switch in one direction during the lever movement and moves back to its original position. without taking the pen with you. In this way, the activated alarm remains active until it is deactivated manually.

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Another important feature of the invention lies in the Creation of an alarm device in the event of a panic or a test device through which the state of the alarm device and the circuit elements connected to it can be checked at will by actuating the alarm signal can. For this purpose one is at an easily accessible place Place attached, manually operated push button provided by which the operating switch bypassed, and the circuit to trigger the alarm is closed. By doing this, the state of the power source becomes the Alarm device and the circuit elements checked or the alarm activated. In certain embodiments of the invention, however, the switch for actuation of the alarm can be arranged for test purposes so that it is accessible for manual operation, wherein a special test push button and a bypass circuit are unnecessary.

For a better understanding of the following detailed description of the invention and for a correct assessment of the contribution of the invention to the prior art At the beginning, the important features are broadly explained. However, the invention has further features which are set out below and which form the subject of the claims appended to the description. For Paoh people it is easy to see that the idde that this revelation is the basis, without any difficulty for others

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Constructions that serve similar purposes as the invention can be evaluated. It is therefore important to determine that the claims cover similar constructions that fall outside the spirit and scope of the invention not deviate.

Details of the invention emerge from the description of the embodiment shown in the drawing. In the drawing is:

Pig. 1 shows a view of the inventive, with an alarm device combined chain lock that can be used for a door and a door frame;

Fig. 2 is a front view of the alarm device with broken away housing j

Pig. 3A is a side view of part of the means for actuating the switch in the triggering section;

Pig. 3B is a view similar to Pig. 3A which however shows the relevant parts in the switched-on position}

Pig. 4 is a side view of a further component of the invention Execution atBpiela, on which some interior parts are drawn in striohled in the rest position;

Pig. 5 is a view similar to Pig. 4 »but the

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Shows device in operating position;

Pig. Figure 6 is a top plan view of Pig's device. 4 and without the chain;

Pig. 7 and 8 views similar to those of Pig. 4 and 5, but the alarm system connected to a chain lock show in combination with a lock; and

Pig. Figure 9 is a top plan view of the Pig device. 7 and with broken case.

Pig. 1 of the drawings shows a door 10, a door frame 11 and a preferred one used in connection with these parts Execution of the lock according to the invention. On the door is a plate 12 with an elongated, T-shaped Slot guide 14 attached, the latter at the intersection of the horizontal and vertical slots a grooved bolt or a chain anchor 15 can accommodate. When the chain anchoring the chain in the lower At the end of the vertical slot, the chain 13 connected to it is tensioned, thereby keeping the door closed will. If you slide the bolt into the horizontal lock, you can open the door a little to a visitor! to identify and at the same time to assess security. Due to the T-shape of the slot H, the same plate 12 can also be attached to the frame or the left or right part of the Door to be attached.

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According to the present illustration is on the door frame opposite the plate 12, a housing 16 attached, which a back plate 17 and a cover plate 19 fixed to the back plate by a screw 20. In the case are an alarm device 21, e.g. a buzzer, a bell or the like ^ and a battery 22 seated in a bracket 24 arranged. The circuit contains a single pole, a single changeover switch 25 with a side mounted Switch pin 26. The circuit also contains corresponding wire lines through which the closed position of the switch the alarm transmitter is energized by the power source.

At this point, it should be noted that the alarm transmitter - not only, as in the present exemplary embodiment shown, can be provided in the form of a buzzer arranged in the housing, but also, for example, in the form of a flashing light. The alarm transmitter can also be installed at a location remote from the lock, e.g. in the room of the, Guard post of a building, "but he can also both at the castle itself and at a location away from the castle to be appropriate. When using a remote alarm transmitter, the alarm signal can be transmitted instead of the one shown here Wire lines use a microsender.

A switch actuation device is used to trigger the alarm device in the form of a mounted in the housing 16

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Lever 28 is provided, which is rotatable about the pin 27. The lever has a projection 29 having a bore 30. A screw 31 rests in the bore 30 is screwed into part of the housing. A compression spring 32 surrounding the screw is supported with a End on projection 29 and the other end on the head of the screw, so that the spring, as shown in the drawing, counteracts the clockwise rotation of the lever ^ The spring tension can be adjusted by adjusting the screw 31 can be adjusted as desired.

In the lever 28 there is a square opening 34 » in which the holding pin 26 is located. In the off position

on

however, the pin is 26, as in Tig. 3A shown / the left side of the opening 34. From one below The reason to be explained is the hole larger than for the inclusion of the switch pin 26 would be necessary.

In the side wall of the housing there is a longitudinal bore 35 'between the pivot pin and the square Opening 3A is arranged in the lever 28 ·. A screw 36 permanently attached to the lever, with one end the chain is connected, lies in the longitudinal bore 35.

When the system is in operation and the door is closed, the chain anchor 15 can be in the vertical or horizontal Part of the slot guide 14 are pushed. If the anchorage is in the vertical part of the sole seat

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Guide is located, the chain 13 is tightened at each Versuoh to open the door. Is the anchor in the horizontal part, the chain only tensions when the door is a little open. So the one against the Door exerted a force by which the chain is tensioned and the lever 28 is moved so much that it moves away from the In Fig. 3A shown switch-off part in the in Fig, 3B shown switch-on position moves in each If the switch pin 26 is in the on position, and the alarm is triggered »Since the opening 34 is oversized and is arranged eccentrically with respect to the switch pin 26, the switch remains in the on position when the lever 28 is released by releasing the chain tension returns to its original position.

If the alarm device is installed next to the gate, prevents the enclosure that a potential intruder is the

• f Function of the alarm device disrupts.

To increase the security guaranteed by the system, the screw 20 can be fitted with one shown in FIG Be provided with a special head so that the cover plate 19 cannot be removed with an ordinary screwdriver. can. The resident of the premises secured by the system will of course receive a special key or -Screwdriver to be able to remove the de-icing plate for maintenance of the system.

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The cover plate 19 can also be equipped with a Pig. 1 shown, circular opening 39 be equipped for attachment the chain anchorage 15 is used when the door is wide open.

ITm to check the alarm system or to trigger the alarm is a push button 37 protruding from the bottom of the housing 16 is provided. When this push button is pressed, the negative side of the battery 22 simply grounded on the housing, and thereby the circuit to the alarm transmitter, which is also on Housing is grounded, closed. With the push button 37, the switch 25 is bypassed.

In the exemplary embodiment according to the invention shown in FIG. 4, the chain 13 is attached to an anchor block 40 arranged on the door frame 11, while the housing 4f sits on a support plate 42 attached to the door 10. It should be noted that the side of the housing 41 lying next to the plate 42 is tapered towards the edge towards e-twas, so that the tapered part 44 forms a small angle with the surface of the plate in the rest position. The housing is attached to the plate 42 by means of a screw 47 which extends into the plate 42 through a cylindrical recess 49 in the housing. A spring 50 presses with one end against the bottom of this recess and with its other end against the head of the screw, whereby the housing in the one shown in FIG

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Disclosure is maintained.

If you are dreaming, one end of the chain 13 is at that AnktrlclotE 40 attached. The other end of the chain is with tintr Kttttnvtranktrung 45 vtrbundtn "dit at the vtrbreittrttn End · tint · tnteprtohtnden" in Fig. 6 shown slits 46 in the latter and can be slid in the longitudinal direction, ο date the door is partially opened, zugltloh, however, can maintain the security guaranteed by the Ktttt. A similar hole 4ö with The shortened bottom seat is used to accommodate the chain anchorage 45 »if a partial opening of the door is not desired will.

A slot 51 is formed on one side of the housing 41 through which a switch pin 52 extends (similar to the operating lever 26 of FIGS. 2, 3A and 3B). The housing can also include an alarm device 53 and one or more Batteries 22 included. It should be noted that, wit mentioned in connection with the embodiment described above, the power source and the alarm transmitter also on can be attached to a location away from the lock. A simple series connection, not shown, is used when the switch is closed to transfer the energy from ' the batteries on the alarm device.

When operating the embodiment shown in Fig. 4 _f 5 and 6

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According to the invention, the chain, as shown in Fig. 4, must Of course, be long enough that you can open the door a little without setting off the alarm. However, if the door is opened with the application of force beyond a certain limit, the housing 41 pivots in relation on the part to which it is attached with its inside is, by the tension exerted on the chain about the axis of rotation at the end of the inclined plane (44). The swiveled The position of the housing is shown in FIG. The necessary to pivot the housing ßaft can by means of the adjustable by the screw 47 spring 50, which is pretensioned against said movement, set as desired will. The switch button 52 is, as shown in Figs. 4 and 5, through the lower edge of the sole seat lifted from the rest position shown in FIG. 4 into the switch lock division shown in FIG. 5. When the When the force applied to opening the door is reduced, the housing 41 returns to its position shown in FIG. shown rest position back.

However, since the sole seat 51 is longer than the switch pin 52 is, the latter remains in the sole division and the alarm transmitter 53 is in operation until the switch is turned off manually. You could of course go to Maintaining the closed position of the alarm circuit β use a relay with holding winding; however, the system described has proven to be simple and inexpensive.

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To check the circuit and the power supply or to trigger an alarm signal in the event of a pa-

nik, the switch can be in the closed position at any time be moved. When the chain anchorage 45 is in the opening 48, when force is applied against it, it is complete closed door the switch is also operated.

For the purpose of embellishment, the chain can be covered with a plastic or leather cover, for example »and that The housing may be designed so that the slot 46 of the chain anchor is at the bottom of a groove that is shaped like this deep is that the chain is flush with the surface of the housing.

Another exemplary embodiment according to the invention is shown in Fig. 7 and 9, in which the with an alarm device Combined chain lock essentially with that described in connection with FIGS. 4 to 6 Identisoh is. However, the housing 60 and the plate 61 are larger than those described above, so that the former © in addition to the alarm device, the batteries and the holder, a locking device shown in FIG 62 with a tumbler for the actual bolt · can accommodate. This conventional locking device Briefly, 62 includes a rotatable crank 64 which is rotatably connected to an arm 65 which in turn is rotatably connected to the bolt 67 at point 66. the

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Crank 64 fcrnnn etch "wieoien de * position at furUekf · - eohobenem bar and you hemostasis ^ ¹ forftsthobtntm bars only üb drehhen 180 °, wove ·! Your · movement limited by detents 69 lit «Sin · torsion spring 70, which anchored with one end in arm 65 and“ with the other end in a relatively settled salvation ”has the effect of a frog clamp on the movements of the bolt. The crank is manually operated from the inside of the door by means of a rotary knob 71 shown in FIGS. 7 and θ and from the outside of the door by means of a lock cylinder 72 which can be operated by a key.

As is apparent from the above description, ^1, the invention provides the combination of a locking or blocking with the .. in Pig. 4- to 6 system shown provides an additional level of protection. When the bolt is advanced, every attempt to forcibly open or break the door presses the bolt against the inner wall of the tumbler, whereby the housing pivots about the axis of rotation 15 and presses against the base plate 76. In this way, the other end of the housing and thus the holding pin 77 are lifted and moved into the position shown in FIG. 8, in which the latter closes the alarm switch 79, thereby creating the circuit between the alarm transmitter 80 and the power source

BATH

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E.g. the battery 78 closes. As mentioned, the type of alarm can be different, and the alarm transmitter can be attached to springs any place. The slot 81 in the housing, through which the switch pin 77 extends, is also shaped here so that the switch is then also in the closed position remains when the force exerted against the door is released, and the housing by the force the adjustable spring 84 returns to its rest position.

The chain lock actuates the alarm device in the context of the Pig above. 4 to 6 described way.

This embodiment of the invention can, if so desired, be provided with a latch position indicator e.g. with a simple plate that can be rotated with the rotary knob or the sole cylinder, the indicates the bolt position. However, it is preferable to use an electric light Benem bolt 67 lights up. A lamp 86 is therefore provided under a viewing opening 61 in the tumbler. In the A switch 87, e.g. a microswitch, is arranged for locking, through which a series connection when the bolt is pushed forward with a battery 89 is opened and the lamp is turned off. If the bolt is pulled back, it moves sioh the switch in the closed position, which turns the lamp is switched on, which is now the corresponding position

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of the bolt. For this purpose, the Battery 89 also uses the electricity available in the house will. The viewing opening can be formed opposite the lamp 86, so that the position of the bolt of the Outside of the door is visible. It is of course more twofold the housing and the guard locking in recesses in the door or the door frame ■ to be installed as they are on the Surface to be attached.

Another feature of the invention is the hooping a locking device that makes it impossible to unlock the lock from outside when the in Pig. geates chain anchor 91 in her in Pig. 9 shown Slot 90 near the front is lifted 1st and with the one in Pig. θ knob 71 shown is engaged. The chain anchor 91 can engage in the anchoring socket 90 and adjusted so that they are in their striohliert marked position with that shown in Pig, 8, in the rotary knob 71 located slot 92 is in communication when the rotary knob is in its shown in FIG Closed position is moved. Daduroh becomes a blowback prevents the locking by means of a key or other aid until the chain is anchored 31 has been removed from the slot 92 of the rotary knob 71.

As can be seen from the above description, by

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the present invention with an alarm device combined lock, through which one can different, in connection with earlier products of this Kind of avoid difficulties encountered. The sole is also tamper-proof and can be attached to tintm remote location attached alarm device and contains facilities for any overpayment of the circuit elements or for tripping of the alarm in the event of a panic * In addition, the invention creates a device which triggers the alarm, if excessive force is exerted on the chain we you""". both with open, with closed and auoh with the door locked. BtI use of a lock one can borrow an indicator of the bolt potition as tintn install part of the invention in the plant. Therefore duroh the invention actually a relatively simple ", but reliable and cheap", with a. Alarm device combined security lock. As is the case, the use of the present system is not only, as shown in the examples, limited to doors, but can be used to secure windows or other Sohliessvorriohtungen from enclosed Spaces are used.

The assembly and the mode of operation of the novel chain lock combined with an alarm device are now adequately explained, and the advantages of the invention clearly ersiohtlioh for paoh people.

BATH ORIGINAL

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Claims (16)

Claims ■ t combined with an alarm device a key lock, ■ which run- between a relative movement to each other \ de parts inabesondere between door and door frame, can be installed, characterized in that DAEs an open in Huhestellung switch (25), a Sohalterbetätigungeeinrichtung ί (26, 27, 28, 36, 52, 77) the * in one of the named parts, .j e.g. the door frame (11), fixed and for movement dee; Switch can be moved into the closed position, an alarm encoder (21) and a switch pin (26) are provided that / End , · a flexible chain (13) with a screw (36) with the so-holder actuation device and mitigate others End is connected to the second part to be secured, e.g. the door (10), that the chain the switch actuating device when a predetermined force is applied to one of said parts (10, 11) to move them Part in relation to the other in the switch lock position moves, and that the chain is removable from one of the parts mentioned. . 2. Chain lock according to claim 1, characterized in that that a device (12) for the detachable attachment of one end of the chain is provided on one of the said files (TO) is that the switch (25) is arranged on the second part (11) 909825/0263 - ²⁰ - and that another device (36) for fastening the second chain end to the switch actuating device device is provided. 3. chain lock according to claim 1 or 2, characterized in that ' shows that a battery (22) is in the circuit with the alarm transmitter (21) and the switch (25) and the alarm transmitter actuated when the switch is closed, and that to shunt the switch (25) for the purpose of checking of the alarm device and the battery, a manually operated push button (37) is provided. 4. chain lock according to one of the preceding claims, a
characterized in that the part (11) to which the chain is not detachably attached is provided with a housing (16) in which the switch (25) is arranged. 5. Chain lock according to one of the preceding claims, characterized in that in the housing one to one Pin (27) pivotable lever (28) is mounted, the switch being brought into its closed position, and that when the interlocked parts (10, 11) move, the chain (13) moves the lever (28) into the switch closed position (Alarm position) shifts. 6. Chain lock according to one of the preceding claims, characterized in that a spring (32) is provided, 909825/0263 - 21 - which holds the lever (28) in the position in which the switch maintains its open rest position. 7. Chain lock according to one of the preceding claims, characterized in that the spring is adjustable, and that thereby the force to be exerted on the lever (28) for the purpose of moving into the switch closed position can be set differently. 8. chain lock according to one of the preceding claims, characterized in that a switch pin (26) and (27.31)
a device / for fastening the lever (28) are provided that the latter executes a rotary movement with respect to the part to which the chain is not detachably attached, that the lever by the spring (52) with respect to its pivot point in can only be swiveled in one direction, that the lever by the chain (13) in the spring force that it can be moved in the opposite direction / an opening (34) is formed in the lever, in which the switch pin (26) rests that the lever moves under the action of a predetermined force, the switch in the closed position and an alarm transmitter (21) and a device for actuating the alarm transmitter when the switch is closed are provided. j 9. chain lock according to claim 7, characterized in that that the opening (34) in the lever (28) with respect to the Switch pin (26) is shaped so that the lever is underneath 90 9 8 25/026 3 - 22 - The action of the ¹ spring (32) can move back into its rest position when the predetermined force is released, and that the switch pin (26) and the switch (25) themselves remain in the closed position. 10. Chain lock according to one of the preceding claims, characterized in that one end of the chain is releasably attached to an anchorage on the door (10) Housing (41) sä.bst can be used, while the other end of the chain (13) is permanently attached to one on the frame (11) Anchor block (40) is held. 11. Chain lock according to one of the preceding claims, characterized in that one of the two, the chain (13) receiving parts (40, 41) by a corresponding shape with respect to the part (10) to which it is attached is, is pivotable when a predetermined force is exerted on the chain, and that by this pivoting movement of the Switch (54) is moved into its closed position. (See Figs. 4 and 5). 12. Chain lock according to one of the preceding claims, characterized in that the housing has an axis of rotation at the end of an inclined plane (44) about which it pivots with respect to the part to which it is attached, and that it also has a Has opening slot (51) through which the switch pin (52) extends that the » 909325/0263 Switch (54) is moved into the closed position during the pivoting movement of the housing, and that one of the pivoting movement counteracting spring (50) and a latch (45) for fastening one end of the chain (13) to the housing (41) are. 13. Chain lock according to claim 12, characterized in that the housing (41) has a .keyhole-shaped slot (46), and the chain has a grooved bolt (45) at its end, which is slidable in the slot, and that the Opening in the housing in relation to the switch pin (52) is shaped so that the switch is in the closed position of the alarm circuit remains if the housing is under the The action of the spring (49) returns to its original position after the force exerted by the chain (13) has been released. 14. Chain lock according to one of the preceding claims, characterized in that to be secured on the two and parts (10, 11) a manually operable bolt (67) / a tumbler (61) cooperating with the bolt (67) are provided are that keep the two parts (10, 11) relatively immobile and when a predetermined force is applied the latch the switch operating device in the switch closed position move. (See Figures 7, 8, 9). 15. Chain lock according to claim 14 »thereby gekennzeidh.net, that the position of the bolt (67) can be actuated by an electrical display device (86, 89) and a by the bolt '90902 5/0 2 63 * - 24 - ren control switch (81) is displayed. 16. Chain lock according to one of the preceding claims, characterized in that one by means of a key actuatable locking device is provided that a lock cylinder to actuate the lock on the door (72) and a rotary knob (71) are arranged that are used to operate the lock and turn the rotary knob (71) on the opposite side of the door there is a keyhole that can be used to attach the chain anchor on the lock slots (90, 92) are formed that the chain anchorage (91) on the lock has a limited, sliding Movement and that the anchoring is so 'formed is that it engages the slot (92) in the knob and a rotation of the latter upon movement of the Chain anchorage (91) prevented in a certain position. 909825/0263