FI120207B - Lockable torsion knob - Google Patents

Description

LOCKING TORQUE BUTTON

The invention relates to a torsion knob arrangement of a door lock 5 according to the preamble of claim 1.

It is previously known to provide a locking mechanism, such as a cylinder lock, within the torsion knob. Such an arrangement is disclosed, for example, in GB 2145763 and GB 1165416. In these known solutions, only the torsion knob 10 is in power transmission engagement with the members coupled thereto to achieve the desired function, for example using a bolt or latch, while a cylinder lock prevents or enables the torsion knob.

It is an object of the invention to provide a novel solution which, on the one hand, prevents the use of a torsion knob but which, in addition to this function, has a parallel operating feature such that the desired function can also be achieved directly by the cylinder lock or other locking mechanism. It is intended that the solution be applicable to the control and actuation of various functions of the door lock 20 from the operating axis. It is also intended that the solution could be applied to a lock frame, the operation modes of which can be controlled electronically and which can also be mounted on doors of different thickness.

The objects of the invention are mainly achieved in the manner detailed in claim 1 and other claims. The torsion knob arrangement according to the invention includes transmission means for providing a transmission from the locking arrangement to the thrust arrangement mounted on the drive shaft. The locking arrangement is rotatably supported on a support member secured to the lock body, having a locking member optionally arranged to be movable so as to prevent rotation of the locking arrangement relative to the support member, but allowing the use of said transmission means via a locking arrangement key. The solution thus enables the door to be opened from the side of the torsion knob at all times with the lock key. However, the prevention of the use of the torsion knob 2 can be achieved through the lock body, irrespective of the locking mechanism of the torsion knob arrangement on one side of the door as part of the security locking of the door.

In practice, the locking arrangement is preferably a cylinder lock. In this case, the stopper 5 is preferably arranged in a groove of the support piece or the like, from which it can be moved to a position where it acts on the cylinder lock key housing or the locking element connected thereto to prevent the cylinder lock from being rotated.

Preferably, the barrier member is arranged in the direction of the operating axis, whereby the barrier member 10 is moved to its locking position from the outer end relative to the torsion knob arrangement towards the operating axis. Hereby, said outer end of the barrier member may be arranged in its locking position to cooperate with a rotation limiting member disposed on the support member. The locking element is then preferably positioned between the key housing 15 and the threadlocking member. Further, the rotation limiting member is arranged to act on the locking member such that it defines the freedom of rotation of the locking member and thus of the entire torsion knob arrangement. Determining this rotation is not solely dependent on the torsion knob arrangement return spring.

Advantageously, one or more extensions may be provided between the key body and the locking element. In this way, the arrangement can be fitted to doors of different thickness.

The blocking member is preferably arranged to extend inside the lock body housing. Hereby, the lock body is preferably provided with means for causing the barrier member to be moved to its locking position. These means may comprise a movable transmission member within the lock body and may also be electrically operated. Thus, the displacement of the barrier member can be effected electrically, for example by means of a solenoid, which also enables remote operation of the arrangement.

The blocking member is spring-loaded to its position allowing rotation of the torsion knob assembly. This prevents the torque knob function from being accidentally eliminated.

30 3

The invention will now be described, by way of example, with reference to the accompanying schematic drawings, in which: - FIG. Fig. 4 shows the solution of Fig. 1 in the anti-rotation position of the blocking knob assembly, 10 - Fig. 5 shows a section VV of Fig. 4, - Fig. 6 shows a partial enlargement VI of Fig. 5, - Fig. 7 Fig. 9 shows a partial magnification IX of Fig. 7.

15

In the drawings, reference numeral 1 denotes a door fitted with a lock frame 2. The operating shaft 2 'of the lock body is fitted with a torsion knob arrangement 3 comprising a torsion knob 4 and a cylinder lock 6 secured thereto by a pin 5. A variety of types of locks can be thought of for use. The cylinder lock of the figures is of a known type having a key housing 7 with a lock cylinder 8, a baffle plate package 9 and a baffle bar 10. use.

The torsion knob arrangement 3 is rotatably supported on the lock body 2 by using a support piece 13 attached to the lock body, on which the torsion knob arrangement 3 is held by the lock ring 17. For the torsion knob arrangement 3, the door 1 is further provided with a support plate 18 on which the torsion knob arrangement 3 is rotatably supported.

The torsion knob arrangement 3 also includes an extension 14 disposed behind the key body 7, a locking member 15 and a rotation limiting member 4 16, and a barrier 19 normally located in the groove 13a of the support 13, which is pressed radially outwardly by the spring 20. In addition, the spring 21 takes care of returning the torsion knob arrangement 3 to its normal position after use.

5

Thus, in the situation of Figures 1-3, the stop member 19 is located in the groove 13a of the support piece 13, where it permits the use of a torsion knob arrangement 3. In this case, rotation of the torsion knob arrangement 3 also rotates the torsion plate 11 and there is a transmission connection from the torsion knob arrangement 3 to the tumbler arrangement 12. As shown in Figures 1 and 4, the stop member 19 extends inside the lock body 2, where it is arranged to cooperate with the vertically movable transmission member 22 in the figures. Movement of the body 22 can be accomplished in many different ways, for example directly mechanically from the second operating axis of the lock body 2. Movement of the blocking member 19 and / or the transmission member 22 if desired can also be effected remotely using electrical control. It is not essential to the invention how the displacement of the body 22 is achieved. In the embodiment of the figures, however, the barrier member 19 is moved to the position of Figures 4-9 by moving the transmission member 22 upwards in the figures. In this position, the stop member 19 prevents the turning of the torsion knob arrangement 3. However, in this situation, the transmission connection to the cam assembly 12 may be provided via the cylinder lock 6 by unlocking the cylinder lock mechanism with the lock key (not shown) and rotating the lock cylinder 8 and the torque plate 11 attached thereto. and the rotary knob arrangement 3 is again rotatable normally. The guidance of the blocking member 19 will now be described in more detail.

The locking element 15 has a guide aperture 15a and the rotation limiting member respectively a guide groove 16a with which the stop member 19 cooperates 30 when moved to the position of Figures 4-9. Further, the rotation limiting member 16 is pivotally disposed with respect to the support member 13 through the projection 16b. Thus, rotation of the torsion knob arrangement 3 in this position of the stop member 19 is effectively prevented.

5

The rotation limiting member 16 also has a projection 16c in the direction of the operating axis arranged to cooperate with the groove 15b of the locking element. The guide edges 15b 'and 15b' of the groove 15b are arranged about 45 ° apart and together with the projection 5c define the freedom of rotation of the torsion knob arrangement 3, whereby the rotation is independent of the extreme position of the spring 21.

The extension piece 14 and the locking element 15 can be mounted without threads. In order to prevent them from being rotated with respect to each other and the key housing 7 and 10 in relation to the rotation limiting member 16, they are preferably provided with small pins 23 in the direction of the operating shaft 2 'and crossing the parts so that they are rotatable with the key housing 7.

Advantageously, the extensions 14 of the key housing 7 can be used in the required amount 15 to fit the torsion knob arrangement 3 to the doors of different thicknesses.

The invention is not limited to the embodiments shown, but several variations are contemplated within the scope of the appended claims.

Claims (11)

A door knob knob arrangement (3), comprising a function shaft (2 ') in the reading housing (2) of a door lock mountable knob (4) and a rotatable knob 5 mounted with a key useful laser arrangement, heist a cylinder read (6) with power transmission means (11) for transmitting power from the reading arrangement to a rudder arrangement (12) mounted on the functional shaft (2 '), characterized in that the reading arrangement is pivotally supported by a support piece (13) fixed to the reading housing (2) comprising an obstacle piece (13). 19) which is selectably arranged to be displaced so that in its first position it permits rotation of the power transmission means (11) by means of the rotary knob arrangement and in its second position prevents rotation of the rotary knob arrangement (3) in relation to the support piece (13). using said power transmission means (11) by mediating the key of the reading arrangement. 15 2. Knob knob arrangement according to claim 1, characterized in that the reading arrangement (6) is a cylinder lock and the obstacle piece (19) is arranged in a latch (13a) or the like in the support piece (13) from which it can be moved to a position where it affects the key housing of the cylinder reading. (7) or a reading member (15) connected thereto to prevent rotation of the cylinder reader (6) and thereby the knob arrangement (3). Rotary knob arrangement according to claim 1 or 2, characterized in that the obstacle piece (19) is arranged parallel to the function shaft (2 ') and that the obstacle piece (19) for moving it to its reading position is arranged to be moved at its relative to the rotary knob arrangement. (3) outer end, radially in the direction of the functional axis (2 '). 4. Rotary knob arrangement according to claim 3, characterized in that said outer end of the obstacle piece 30 (19) is arranged to cooperate in its reading position with a rotatably arranged torsion limiting piece (16) and said reading element (15) is located between the key housing (15). 7) and the torsion limiting piece (16). Rotary knob arrangement according to claim 4, characterized in that the rotary limiting piece (16) is arranged to actuate the laser element (15) in such a way that it determines the rotational freedom of the reading element (15) and thereby the entire rotary knob arrangement 5 (3). Rotary knob arrangement according to any of claims 2-5, characterized in that one or more extension pieces (14) exist between the key housing (7) and the welding element (15). 10 7. Knob knob arrangement according to any preceding claim, characterized in that the obstacle piece (19) is arranged to extend within the walls of the reading housing (2) and the reading housing (2) comprises means (22) arranged to move the obstacle piece (19) to move. to its reading position. 15 8. Rotary knob arrangement according to claim 7, characterized in that said means comprises a movable power transmission piece (22) associated with the reading housing. 9. Knob arrangement according to claim 7, characterized in that said means 20 (22) are electrically driven. 10. Rotary knob arrangement according to claim 9, characterized in that said movement is arranged to be electrically driven, for example by means of a solenoid. 25 11. Rotary knob arrangement according to any preceding claim, characterized in that the obstacle piece (19) is spring-loaded (20) in its position which allows rotation of the rotary knob arrangement (3).