WO2000017475A1

WO2000017475A1 - Apparatus assisting in checking entrances to premises and rooms

Info

Publication number: WO2000017475A1
Application number: PCT/SE1999/001622
Authority: WO
Inventors: Lars Mattsson
Original assignee: Lars Mattsson
Priority date: 1998-09-23
Filing date: 1999-09-17
Publication date: 2000-03-30
Also published as: SE9803220L; SE9803220D0; SE515562C2

Abstract

The present invention relates to a device for assistance with access control to premises and spaces. The device comprises a lock (2) or lock case applied relative to a door (1) to the said premises, which lock or lock case is connected to a lock bolt (12). This lock bolt is operated by, for example, associated turnable or movable handles (3, 4), located on either side of the said door (1) and is arranged to permit, after turning of the said handle (3, 4) opening of the said door (1), whereupon one (4 or 3) of the said handles is arranged via associated parts to act individually and is separated from the other (3 or 4) of the said handles or the like via its associated parts. The characteristics of the present invention are that the said handles (3, 4) are arranged to be momentarily connected together from a mutually disengaged starting position with the aid of a connection means (5, 6) intended for this purpose. This connection means is arranged to be moved - for the connection - from an inactive position to an active position in that a movement means (7) has been momentarily actuated manually, either directly or indirectly. The said connection means (5, 6) is arranged to be returned to the said disengaged starting position with mutually disengaged handles (3, 4) by the said one handle (4 or 3) after turning or movement of the latter for operation of the said lock bolt (12) to allow opening of the said door (1).

Description

APPARATUS ASSISTING IN CHECKING ENTRANCES TO PREMISES

AND ROOMS

The present invention relates to a device for assistance with access control to premises and spaces. The device comprises a lock or lock case applied relative to a door or the like to the said premises etc., the said lock or lock case being connected to a lock bolt. The lock bolt is operated by associated handles or similar, arranged to be turnable or movable, installed on either side of the said door or the like, via associated parts. The lock bolt is arranged to permit, after turning or movement of the said handle or the like, opening of the said door or the like. One of the said handles or the like is arranged via associated parts to act individually and is separated from the other of the said handles or the like via its associated parts and appropriately by power- accumulating means for return of at least the said one handle. TECHNICAL FIELD

Access control to premises is as a rule provided by means of locks fitted in doors, the associated lock bolts of which interact with the frame of the door, thereby preventing opening of the door. Such locks are operated by turning or in some other way moving the associ- ated door handles after having taken away, with the aid of keys, cards - for example magnetised keypads with codes - etc, this effect on the lock bolt obstructing movements of the handles.

Upon evacuation of such premises and spaces it is also essential for the lock in question to always be openable from inside the premises or spaces for evacuation reasons in the event of a fire, smoke, etc.

In order to be able to handle coded access with the aid of keypads, magnetic cards, etc., a supply of electric power in some form is usually also needed.

In the event that mains voltage is utilised extensive and costly wiring will be required and the latter also limits the placing of the keypad, card reader, etc., on the door frame or in its vicinity. The advantage of supply by means of mains voltage is nevertheless that it is possible to take out a relatively high current for a long time, something which as a rule is necessary when utilising a magnetic coil to operate a lock bolt, or a latch connected to a lock bolt, to prevent or permit movement of the handle, thereby to enable the door to be opened. BACKGROUND ART

In an embodiment known in the marketplace use is made of a somewhat complicated and thereby expensive construction featuring among other things a solenoid and a permanent magnet, thereby to avoid the need to utilise mains voltage with its associated disadvantages. The said known embodiment requires relatively complicated means in order to function. In other embodiments power consumption takes place during a relatively long time, a circumstance which has as a result that such solutions become expensive, cannot be easily installed in relation to existing lock cases and lock bolts in doors, and require relatively frequent battery replacements on account of high power consumption, a circumstance which in its turn has as a result that a door with an installation of this kind often risks being unable to be opened owing to the lack of sufficient supply voltage.

Technique that lies near at hand without anticipating the present invention is evident from, i.a., the following patent specifications, namely FR 2 744 753, DE 3 742 189 and DE 498 940. OBJECT OF THE INVENTION The object of the present invention is to provide a device which can be applied in or relative to the lock of a door or the like, the said device being capable of being installed and co-operating with existing lock cases or lock bolts in doors etc., the said device being operated manually and/or with extremely low power consumption, preferably by means of an electric battery or an electric accumulator, and which device can always be operated manually from one direction via turning or movement of an associated handle, even when electrical voltage is lacking, and which device is of simple design and assembly in order to be price-beneficial to produce, to distribute and to install. The above and other objects and purposes have been solved in accordance with the present invention by means of the device mentioned in the descriptive preamble of the specification in that the said handles or the like are arranged to be momentarily connected together from a mutually disengaged starting position with the aid of a connection means intended for this purpose which is arranged to be moved - for the connection - from an inactive position to an active position in that a movement means has been momentarily actuated manually, either directly or indirectly, and in that the said connection means is arranged to be returned to the said disengaged starting position with mutually disengaged handles or the like by the said one handle after turning or movement of the latter for operation or the said lock bolt to allow opening of the said door or the like.

A particularly distinguishing feature of the present invention is that the said movement means is arranged to be actuated only for such a short time that connection has time to take place, that the said movement means is arranged to move a stop part which is located between the separated handles in the said disengaged starting position away from the said position, and that the said movement means incorporates an electrically operated solenoid and that the said connection means incorporates a peg, a power-accumulating means moving the last mentioned peg in one direction and a first recess interacting with the said peg and the said power-accumulating means, the said peg, power-accumulating means and first recess being arranged interactively with the one handle and/ or with its associated parts, and in that the other handle and/ or its associated parts are arranged to interact with the said peg via a second recess. BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

Further details and characteristics of the present invention will become evident from the description hereinbelow, of an embodiment thereof chosen merely by way of example and with particular reference to the accompanying drawing, wherein Fig. 1 shows a perspective view of a part of a door with a lock bolt installed therein and a device according to the present invention installed relative to the said door;

Fig. 2 shows partly a perspective view of dismantled essential parts of the device according to Fig. 1 and partly, within a frame, separate views of the parts in order to more clearly illustrated different details thereof,

Fig. 3 shows certain essential parts according to Fig. 2 in an enlarged scale and to the right thereof further views to clarify an embodiment of the present invention chosen by way of example, and Fig. 4 A-F show examples in different views of connection positions for the connection means, stop part, springs, etc., of the device according to the invention. DESCRIPTION OF A PREFERRED EMBODIMENT

A device 2 according to the present invention is installed relative to a door 1 - see especially Fig. 1. The door 1 can, for example but not necessarily, previously have been fitted with a lock with associated lock case and lock boltl2 and with handles 3, 4, and in such a case the present lock 2 is fitted together with its base plate 21 - see especially Fig. 2 - for example with the aid of wood screws not shown in the drawings, to a surface of the door 1 facing away from a premises or a space, to which premises or space access shall be enabled or respectively prevented via the present device 2. The said base plate 21 is arranged with its appurtenant holes and openings so that for example previously utilised opening handles 3, 4 are located in the same positions relative to one another as previously, seen vertically and horizontally but not usually in the depth direction in relation to the door, although it shall be noted here that the one, entire, usually cross- sectionally square throughgoing shaft which was previously used for the purpose of connecting together the handles 3, 4 located on either side of the said door 1 has in the present case been replaced by two short, appropriately cross- sectionally square connection pegs 31, 41 , which are mechanically connected to and actuated by the handles 3 and 4 respectively. By this means the handle 3 will, in principle, according to the present invention by freely movable in relation to the handle 4 and vice versa, because they in relation to each other are not mechanically connected together.

A number of spacing means 23a-23d and 24a-24b are fixed in the said base plate 21, and relative to these a spacer disc 22 and a lock cover 26 are fixed by means of, for example, suitable screws, not shown in the drawings, which advantageously can be screwed into threaded openings provided in the said spacing means 23a-23d but not shown more closely in Fig. 2 of the drawings. Further, the said lock cover 26 can for example be provided with a keypad 28 or keys for entering codes for example, with a not shown card reader for the same purpose, with a latch operated with a key, the associated parts thereof being capable of, for example, interacting via an opening 21b, for example oblong so as to be adaptable to different locations and designs, with a lock case, not shown in the drawings, mounted in the door 1, with batteries 25 and with not shown electronic circuits for storage, input and control purposes. Other types of input devices than card readers and keypads are obviously also usable, depending on requirements and wishes, for example infrared sensors.

Located between the base plate 2 land the spacer disc 22 provided at a given distance by means of spacing means 23 is a connection means which in principle consists of a second part 13 which is always connected to the other handle 4 via a second connection peg 41 and which is limited in respect of movement in relation to the base plate 21 via, for example, a chamfered surface 13a with the aid of a stop knob 21a provided on the stationary base plate 21, the said connection means comprising a first part 14 which is connected to the first handle 3 via a first connection peg 31 and which, via a stop knob 22a provided on the stationary spacer disc 22 is limited in its movement, the said stop knob 22a being especially evident from the frame upside down and mirrored view of the spacer disc 22 shown to the far right in Fig. 2. The said first 14 and second 13 parts are mutually movable and in an inactive position are separated from each other by a stop part 8, the top side 8a of which is designed to advantage as an upward -according to Fig. 2 - domed surface and the side of which 8b facing the first part 14 is designed to advantage cup-shaped, the said stop part 8 being arranged momentarily movable upon manual operation - not shown in greater detail - of and/ or activation of a solenoid 7 or an electromagnet to an activated position against the action of a second spring 10 or a second power-accumulating means, away from the said separate action between the said first and second parts 14 and 13.

A peg 5 is located in a first recess 9 - see especially the part of Fig. 3 towards the right within broken lines where amongst other things the first part 14 is shown on the right upside down and mirrored for reasons of clarity, as well as also a first spring 6 belonging to the latter. The pin 5a of the peg 5 is partly steered by the first recess 9 and partly this pin 5a rides in the non-activated position of the solenoid 7 on the top side 8a of the stop part 8 and in this position the associated first spring 6 is compressed in the first recess 9.

Upon, for example, momentary current supply of the solenoid 7 or alternatively upon manual direct actuation of the stop part 8, which current supply or manual actuation can be controlled for example to be accomplished by the keypad 8, by a magnetic card via a reader not shown in the drawings, by a latch provided with a key, the stop part 8 is removed from its initial position between the first and the second parts 14 and 13, whereby the first spring 6 on account of its compression causes the peg 5 to move to a locking mesh with the second recess 11 of the second part 13, whereby the said first and second parts 14 and

13 are mechanically connected together, whereby either of the handles 3 and 4 can be turned - in relevant cases moved - in order thereby to move the lock bolt 12, for example, via a lock case fitted in the door 1 - not shown in greater detail in the drawings - away from co-action with the frame of the door 1, whereupon it becomes possible to open the door 1.

After this extremely short, momentary, manual actuation and/ or virtually impulse-like current supply of the solenoid 7 or of the electromagnet from the battery or batteries 25 the manual actuation and /or current supply of the solenoid 7 is interrupted, whereby the compressed second spring 10 endeavours to return the stop part 8 to the initial position between the first and the second parts 14 and 13. At the same time a leaf spring 15, for example, with connected first and second arms 16 and 17, which have limited rotation - via stop knobs 16a, 17a - relative to the first part 14 endeavours to return the turned or moved handles 3 and 4 to the initial position. Upon this return of the handles 3 and 4 it encounters the stop part 8 and more specifically the outer part of the top side 8a of the now de-activated solenoid 7 the pin 5a of the peg 5 - seen in Fig. 3 - and then again compresses the first spring 6 in the first recess 9 in the first part 14, whereby the said first and second parts 14 and 13 again become separated relative to one another by the stop part 8 after turning of the handles 3 and 4 has been carried out.

The movement and interaction process outlined in the embodiment used as an example in the description and described and illustrated more closely with reference to Fig. 4 A-F, where Fig. 4a shows the included parts in different views and Fig. 4 B-F show different relative positions. Fig. 4 B shows by way of example an initial position with the stop part 8 functionally separating the parts 13 and

14 and thereby the handles 4 and 3, Fig. 4 C shows the movement performed manually or by means of current of the stop part 8 away from separating action between the parts 13 and 14, at the same time as the peg 5 is brought by the compressed action of the first spring 6 into mechanical co-action with the second recess 11 in the second part 13, Fig. 4D shows a position where the handle 4 and/ or 3 has been turned roughly 40°, so that the pin 5a of the peg 5 has been moved so far that the pin 5a is able to slide up on the cupped top side 8a of the stop part 8 - see especially the lower figure in Fig. 4D - whereby the peg 5 has also be lifted slightly against the action of the first spring 6, Fig. 4E shows a position where the handle 4 and/ or 3 has been turned back about 20° further in the direction towards the initial position, and as is evident from Fig. 4E - see especially the lower figure - the pin 5a of the peg 5 has slid up further on the cupped top side 8a of the stop part 8, whereby the peg 5 has been lifted further against the action of the first spring 6, and finally Fig. 4F shows return to the initial position, where the peg 5 through the sliding of the pin 5a on the top side 8a of the stop part 8 has brought the stop part 8 back to its original position in which it mechanically and functionally again separates the first part 14 and the second part 13 in relation to one another. The return travel of the handles 3, 4 can - as is evident from the above - also be accomplished by means of, for example, a leaf spring 15, by means of a return spring - not shown in the drawings - belonging to a used lock case or by some other means suitable for this purpose.

Modifications, especially of the mechanical elaboration of the device according to the invention, are obviously possible within the scope of the accompanying claims.

Claims

1. A device for assistance with access control to premises and spaces, which device comprises a lock (2) or lock case applied relative to a door (1) or the like to the said premises etc., the said lock or lock case being connected to a lock bolt (12) which is operated by associated handles (3, 4) or similar, arranged to be turnable or movable, installed on either side of the said door (1) or the like, via associated parts, the lock bolt (12) being arranged to permit, after turning or movement of the said handle (3,4) or the like, opening of the said door (1) or the like, whereby one (4 or 3) of the said handles or the like is arranged via associated parts to act individually and is separated from the other (3 or 4) of the said handles or the like via its associated parts and appropriately by power-accumulating means (15, 16, 17) for return of at least the said one handle (4 or 3), characterized in that the said handles (3, 4) or the like are arranged to be momentarily connected together from a mutually disengaged starting position with the aid of a connection means (5, 6) intended for this purpose which is arranged to be moved - for the connection - from an inactive position to an active position in that a movement means (7) has been momentarily actuated manually, either directly or indirectly, and in that the said connection means (5, 6) is arranged to be returned to the said disengaged starting position with mutually disengaged handles (3, 4) or the like by the said one handle (4 or 3) after turning or movement of the latter for operation or the said lock bolt(12) to allow opening of the said (1) door or the like.

2. A device as claimed in Claim 1, characterized in that the said movement means (7) is arranged to be actuated for only as short a time that connection together has time to take place.

3. A device as claimed in Claim 1 or 2, char acterized in that the said movement means (7) is arranged to move a stop part (8) which is located between the separated handles (3 and 4) in the said disengaged initial position, away from the said position.

4. A device as claimed in any one of Claims 1, 2 or 3, char acte r i z e d i n t ha t the said movement means (7) incorporates an electrically operated solenoid 7).

5. A device as claimed in any one of Claims 1, 2, 3 or 4, c h a r a c t e r i z e d i n t h a t the said connection means incorporates a peg (5), a power-accumulating means (6) moving said last-mentioned peg in one direct and a first recess (9) interacting with the said peg (5) and the said power-accumulating means (6), the said peg (5), power-accumulating means (6) and first recess (9) being arranged to interact with the one handle (3) and/or with its associated parts and in that the second handle (4) and/ or its associated parts are arranged to interact with the said peg (5) via a second recess (11).

6. A device as claimed in any one of the preceding Claims 4-5, characterized in that the said solenoid (7) is arranged to be momentarily connected to and thereby activated by a battery (25) and in that its return is provided by a second power-accumulating means (10).

7. A device as claimed in any one of the preceding Claims, charact erized in that the one handle (4 or 3) is always connected to the said lock bolt (12).

8. A device as claimed in any one of the preceding Claims 4-7, characterized in that the electrically operated solenoid (7) or the like is arranged to only be activated manually directly or indirectly via a code.