EP1651831B1 - Assembly that forms part of a locking mechanism - Google Patents

Abstract

A furniture cabinet modular lock system has a housing (1), an output lever (2), an input lever (3) and end-stops (4, 5; 6, 7) limiting the output and input lever angular travel. The input and input lever are coupled and turn in unison right or left.

Description

The present invention relates to an arrangement as part of a closing mechanism according to the preamble of claim 1.

Arrangements of this type can be found among others in today's popular office furniture locks. In this context, the term "closing mechanism" generally used is understood to mean an at least partially mechanical structure which serves to lock a movable part in relation to a stationary part.

There are a variety of different locking mechanisms known, which are suitable for different locking tasks. By way of example, an espagnolette mechanism is mentioned, which generally closes by means of three closing members, a latch and two locking hooks. Rotary bar mechanisms are used to lock cabinet doors.

Each locking mechanism can assume a locking position and an open position. In order to be able to be moved back and forth between these two positions, each locking mechanism has a drive which accepts a drive movement. This drive movement, usually a rotational movement over an angle of 90 °, the locking mechanism in one or more closing member movements, wherein the kinematics of the closing member movements of the respective closing member is dependent.

Illustrated by the example of the espagnolette mechanism, this means that a rotating rod mechanism a 90 ° -Antriebsbewegung on the one hand in a translational movement of the bolt and on the other converts into a rotational movement of two locking hooks.

A locking mechanism in the locked position initially only prevents unintentional opening of the locked object. If the object is also to be secured against unauthorized opening, some locking mechanisms can be further formed into a lock by incorporating a cylinder core into the locking mechanism. Cylinder cores have tumblers that block the locking mechanism in locked position. The blocking can be removed by inserting a suitable key into the cylinder core. The insertion of the key causes the tumblers are pulled into the cylinder core, whereby the blockage of the locking mechanism is released. In some locks, the cylinder core itself serves as a drive of the locking mechanism, in other locks, a separate drive member of the locking mechanism is blocked by means of the cylinder core.

Furniture locks are offered today in modular form. Elements of such kits are initially different closing mechanisms such as push or rotary latch mechanisms. The respective locking mechanisms are often still available in a right and a left version. All these locking mechanisms have a uniform interface into which a drive element can be inserted.

Common kits contain different drive elements in different designs. These are first classic knobs (olives) with cylinder core to block the knob, but also simple knobs without cylinder core, with which the furniture is locked, but can not be completed. Also, cylinder cores can be used directly, without a button in the locking mechanism.

The variety of parts known modular system for furniture locks is high. Therefore, kits for furniture locks have been developed, which achieve a lower number of parts, inter alia, that the locking mechanisms for use in a right and left-hand lock are convertible. Kits with a right / left-Umstellbarkeit the closing mechanisms are among others from the DE-196 27 248 C1 and from the DE 197 09 331 C2 known.

The document FR 2 033 660 discloses an arrangement as part of a locking mechanism according to the preamble of claim 1.

Disadvantage of modular systems for furniture locks is that the associated locking mechanisms must be converted for use in a right or left lock. The convertibility requires moving parts and a corresponding qualification of the personnel, which incorporates the locks and must set accordingly in the context of its closing mechanisms.

Object of the present invention is therefore to provide an arrangement for furniture locks whose locking mechanisms are right / left-usable without any additional effort.

This is solved by an arrangement described in claim 1, which may be a modular system for furniture locks, but nevertheless also usable in other closing devices.

In addition, the position of the locking mechanism is clearly recognizable by the position of the cylinder core. Thus, the invention can be carried out in such a way that the lock is always in the locked position when the slot of the cylinder core is vertically aligned.

In addition, the arrangement according to the invention with the features of claim 3 allows the retrofitting of a Schließzwangs. Closed compulsion means that the key can only be removed from the cylinder core when the lock is in the locked position. The forced closing can be retrofitted after the installation of the castle and also be removed again.

Figur 1a:

Anordnung rechtsverwendet, in Offenstel- lung, Draufsicht;

Figur 1b:

Anordnung rechtsverwendet, in Offenstel- lung, Ansicht B;

Figur 1c:

Anordnung rechtsverwendet, in Offenstel- lung, Schnittansicht C;

Figur 2a:

Anordnung rechtsverwendet, in Sperrstel- lung, Draufsicht;

Figur 2d:

Anordnung rechtsverwendet, in Sperrstel- lung, Ansicht D;

Figur 2e:

Anordnung rechtsverwendet, in Sperrstel- lung, Schnittansicht E;

Figur 3a:

Anordnung linksverwendet, in Offenstel- lung, Draufsicht;

Figur 3f:

Anordnung linksverwendet, in Offenstel- lung, Ansicht F;

Figur 3g:

Anordnung linksverwendet, in Offenstel- lung, Schnittansicht G;

Figur 4a:

Anordnung linksverwendet, in Sperrstel- lung, Draufsicht;

Figur 4h:

Anordnung linksverwendet, in Sperrstel- lung, Ansicht H;

Figur 4i:

Anordnung linksverwendet, in Sperrstel- lung, Schnittansicht i;

Figur 5:

Möbelschloß mit Drehknopf und Zylinder- kern;

Figur 6a:

Schnitt K durch rechtsverwendetes Möbel- schloß in Sperrstellung;

Figur 6b:

Schnitt L durch rechtsverwendetes Möbel- schloß in Sperrstellung;

Figur 6c:

Schnitt N durch rechtsverwendetes Möbel- schloß in Sperrstellung;

Figur 6d:

Schnitt K durch rechtsverwendetes Möbel- schloß in Offenstellung;

Figur 6e:

Schnitt L durch rechtsverwendetes Möbel- schloß in Offenstellung;

Figur 6f:

Schnitt N durch rechtsverwendetes Möbel- schloß in Offenstellung;

Figur 6g:

Schnitt K durch linksverwendetes Möbel- schloß in Sperrstellung;

Figur 6h:

Schnitt L durch linksverwendetes Möbel- schloß in Sperrstellung;

Figur 6i:

Schnitt N durch linksverwendetes Möbel- schloß in Sperrstellung;

Figur 6k:

Schnitt K durch linksverwendetes Möbel- schloß in Offenstellung;

Figur 6l:

Schnitt L durch linksverwendetes Möbel- schloß in Offenstellung;

Figur 6m:

Schnitt N durch linksverwendetes Möbel- schloß in Offenstellung;

Figur 7:

Drehknopf und Zylinderkern, Detailansicht;

Figur 8:

Schnitt M durch rechtsverwendetes Möbel- schloß mit Schließzwang, zwischen Sperr- stellung und Offenstellung;

Figur 9:

Möbelschloß, während (De-)Montage;

Figur 10:

Schnitt N durch rechtsverwendetes Möbel- schloß mit Schließzwang zwischen Sperr- stellung und Offenstellung.

Possible embodiments of the invention will now be explained with reference to the drawings. It shows:

FIG. 1a

Arrangement used right, in open position, top view;

FIG. 1b

Arrangement used on the right, in open position, view B;

FIG. 1c:

Arrangement used on the right, in open position, sectional view C;

FIG. 2a:

Arrangement used on the right, in locked position, top view;

FIG. 2d:

Arrangement used on the right, in locked position, view D;

FIG. 2e:

Arrangement used on the right, in locked position, sectional view E;

FIG. 3a:

Arrangement left-used, in open position, top view;

FIG. 3f:

Arrangement left used, in open position, view F;

FIG. 3g:

Arrangement left-used, in open position, sectional view G;

FIG. 4a

Arrangement left-used, in locked position, top view;

FIG. 4h:

Arrangement left used, in locked position, view H;

FIG. 4i:

Arrangement left-used, in locked position, sectional view i;

FIG. 5:

Furniture lock with knob and cylinder core;

FIG. 6a:

Section K through the right-hand furniture lock in locked position;

FIG. 6b:

Section L through right-hand furniture lock in locked position;

FIG. 6c:

Section N through the right-hand furniture lock in locked position;

FIG. 6d:

Section K through the right-hand furniture lock in open position;

FIG. 6e:

Section L through right-hand furniture lock in open position;

FIG. 6f:

Section N through right-hand furniture lock in open position;

FIG. 6g:

Section K through left-hand furniture lock in locked position;

FIG. 6h:

Section L through left-hand furniture lock in locked position;

FIG. 6i:

Section N through left-hand furniture lock in locked position;

Figure 6k:

Section K through left-hand furniture lock in open position;

FIG. 6l:

Section L through left-hand furniture lock in open position;

Figure 6m:

Section N through left-hand furniture lock in open position;

FIG. 7:

Knob and cylinder core, detail view;

FIG. 8:

Section M through right-hand furniture lock with forced closing, between locked position and open position;

FIG. 9:

Furniture lock, during (dis) assembly;

FIG. 10:

Section N through right-hand furniture lock with closing constraint between locked position and open position.

Based on FIGS. 1 to 4 Let us explain the basic principle of the arrangement. The pictured elements are abstracted links of a locking mechanism. In the Figures 1 and 2 For example, the links are arranged in a manner R that they can be used in a right-hand lock.

The arrangement consists of a housing 1, an output element 2 and a drive element 3. The housing 1 has a substantially hollow cylindrical shape, output element 2 and drive element 3 are rotatably mounted in the housing 1. The housing 1 is provided at its ends with two pairs of stops 4, 5 and 6, 7. The stops 4, 5 serve to limit the angle which the output element 2 sweeps in a rotational movement relative to the housing 1, can limit. The area between the stops 4 and 5, in which the output element can move, is referred to here as output angle range Ψ. The output angle range Ψ includes a semicircle angle.

Analog limit the stops 6 and 7 a drive angle range Φ, in which the drive member 3 can move.

Drive element 3 and driven element 2 can not cover their full angular ranges Φ, Ψ within the assembled arrangement. This is due to the fact that they form fit 8 to a non-rotatable dressing 2, 3rd are united whose angular mobility Ω from the sectional area of the individual angle ranges Φ, Ψ results. Since the angular ranges Φ, Ψ overlap only on a quarter circle sector 9, the angular mobility Ω of the dressing 2, 3 is limited to 90 °.

This value is sufficient to move most locking mechanisms back and forth between their locked position and their open position. So the arrangement of the FIGS. 1 to 4 be regarded as a simple rotary latch, in which the output element 2 symbolizes a rotary latch. When the rotary bolt (output element 2) is in a vertical position ( FIGS. 1a, 1b, 1c . 3a 3g, 3f ) is the rotary latch in the open position. If the drive element 3, which can symbolize a rotary knob or a lock cylinder in a rotary latch lock, rotated by 90 °, the rotary latch assumes a horizontal position ( FIGS. 2a, 2d, 2e . 4a, 4i, 4h ), which corresponds to the blocking position. If the drive element 3 is a lock cylinder, this should be lockable in the locked position by means of tumblers in the housing 1, a corresponding cylinder housing. If the drive element 3 (cylinder core) is blocked in the locked position in the housing 2 (cylinder housing), then the rotary bolt lock is completed.

The advantageous right / left usability of the arrangement according to the invention is determined by comparing Figures 1 and 2 with the FIGS. 3 and 4 clear. Namely, the arrangement can be used right next to a first way R ( Figures 1 and 2 ) in a second way L usable left ( FIGS. 3 and 4 ) to be assembled.

In the first way R, the rotary latch takes its blocking position to the left of the housing. The rotary bolt lock can be used for a right hinged door. If the same components 1, 2, 3 are mounted in the manner L, then the lock is suitable for left hinged doors.

The arrangement according to the invention can be part of a wide variety of closing mechanisms. Thus, the output member 2 may also serve to drive a downstream follower mechanism, such as an espagnolette mechanism that controls the 90 ° closing movement of the output member 2 transmits directly to rotating rods and simultaneously converts into a translatory locking movement.

The FIGS. 5 to 10 show components of a furniture lock in the design of a screw-on lock with knob. The furniture lock is made up of components of a modular system in which the teaching is implemented for the design of right / left-usable locking mechanisms.

The arrangement according to the invention is accommodated in a rotary knob 10. Drive element here is a cylinder core 11, housing a cylinder housing 12, output element an adapter 13 which includes an eccentric 14. The eccentric 14 is used for translational drive of a bolt 15, by means of which the rotational mobility of the knob 10 can be blocked. When the latch 15 is in the open position, the knob 10 can perform a 90 ° -Schließbewegung that is introduced via a rotary knob 16 in a, the rotary knob 10 downstream and not illustrated drawing locking mechanism, which is accommodated by a lock box 17.

The cylinder core 11 has spring-loaded tumblers 18, which extend radially to the longitudinal axis 19 of the cylinder core 11. By spring force, the tumblers 18 are pressed on a part of their length in grooves 20 of the cylinder housing 12 when the cylinder core 11 is in Sperroder in the open position. This positive locking sets the cylinder core 11 in the cylinder housing 12 in the circumferential direction, whereby a movement of the bolt 15 is impossible. The cylinder core 11 can only be rotated in the cylinder housing 12 when a matching key 21 is inserted. Then the tumblers are completely pulled into the interior of the cylinder core 11, whereby the positive connection between the cylinder core 11 and cylinder housing is released.

The cylinder core 11 can be removed by means of a special disassembly key 22. The disassembly key 22 pulls in addition to the tumblers 18 a further blocking tumbler 23 in the cylinder core 11 into it, which prevents withdrawal of the cylinder core 11 along its longitudinal axis 19.

An additional, in FIG. 8 illustrated security gain can be achieved by the locking tumbler 23 is provided with a nose 24, which does not enter even with the use of a disassembly key 22 in the cylinder core 11 with. In order to allow the pulling of the cylinder core 11 despite the nose 24, the contact surface in the cylinder housing 12, against which the locking tumbler 23 in the extension direction, provided with an opening 25. Through this breakthrough 25, the nose 24 can be guided in a groove 20 and pulled along this together with the cylinder core 11 from the cylinder housing 12 out. The opening 25 is to be positioned in the cylinder housing 12 so that the nose 24 can only enter the groove, in which the tumblers 19 retract in the open position of the cylinder core 11. In this way it is ensured that the cylinder core 11 of a locked lock can not be pulled.

When the cylinder core 11, as in FIG. 9 shown, the knob 10 can be replaced by means of a simple assembly tool 26. The assembly tool 26 pierces the entire knob 10 in its center and unlocks a mounting button 27, which holds the knob 10 in the lock box 17.

When pulled cylinder core 11, it is also possible to equip the lock with Schließzwang. For this purpose, a blocking element 29 in the form of a simple pin is inserted into a receiving opening 28 in the cylinder housing 12. This locking element 29 prevents the cylinder core 11 can approach the open position by the closing path, ie the angular mobility Ω, is restricted accordingly ( FIG. 10 ). The tumblers 18 can not extend out of the cylinder core 11 in this angular position, since a section 30 of the inner circumference of the cylinder housing 12 prevents the tumblers 18 from protruding. As long as the tumblers 18 do not protrude from the cylinder core 11, the key 23 can not be deducted. The user is thus forced to bring the lock previously in the locked position.

The closing constraint can be canceled at any time by the locking element 29 is removed again from the receiving opening 28. Right / left usable locks require two receiving openings 28L and 28R.

Claims (7)

1. Assembly that forms part of a locking mechanism, especially the locking mechanism of a furniture lock,

   a) with a housing (1),

   b) with an output drive element (2) that can rotate, relative to the housing (1), within an output drive angular range (Ψ),

   c) and with an input drive element (3) that can rotate, relative to the housing (1), within an input drive angular range (Φ),

   d) with the input drive angular range (Φ) being limited by two stops (6, 7) between the output drive element (3) and the housing (1),

   e) with the output drive angular range (Ψ) being limited by two stops (4, 5) between the drive element (2) and housing (1),

   f) with it being possible for the input drive element (3) and output drive element (2) to be connected to each other in two manners (R, L) for co-rotation, in such a way that the input drive element (3) and output drive element(2) form an assembly (2, 3) which has a rotation capability (Ω) relative to the housing (1),

   g) with the rotation capability (Ω) of the assembly (2, 3) being limited by one of the stops (4, 5) between the output drive element (2) and housing (1) on one hand and by one of the stops (6, 7) between the input drive element (3) and the housing (1) on the other,

   h) with in the first manner (R) the rotation capability (Ω) of the assembly (2, 3) being limited by the first stop (4) between the output drive element (2) and housing (1) on one hand and by the first stop (6) between the input drive element (3) and housing (1) on the other,

   i) and with in the second manner (L) the rotation capability (Ω) of the assembly (2, 3) being limited by the second stop (5) between the output drive element (2) and housing (1) on one hand and by the second stop (7) between the input drive element (3) and housing (1) on the other,
   characterized in that

   j) the housing (1) is provided with two pairs of stops (4, 5) and (6, 7), with one pair of stops (4, 5) limiting the output drive angle range (Ψ) and the other pair of stops (6, 7) limiting the input drive angular range (Φ).
2. Assembly according to Claim 1, characterized in that the output drive angular range (Ψ) and input drive angular range (Φ) are each limited to an angle of 180° and that both angular ranges (Ψ, Φ) cover a common quadrant sector (9) within which the assembly (2, 3) can move within the framework of its rotary movement capability (Ω).
3. Assembly according to Claims 1 or 2, characterized in that the housing (1) is a cylinder housing (12) and the input drive element (3) is a cylinder core (11) which has spring-loaded tumblers (18), with the tumblers (18) extending essentially radially relative to the longitudinal axis of the cylinder core (11) and then projecting for a part of their length beyond the circumference of the cylinder core (11) and thus forming a form fit between the cylinder core (11) and cylinder housing (12), so that the cylinder core (11) is fixed in the circumferential direction in the cylinder housing (12) when a key (21) belonging to the cylinder core (11) is inserted into the cylinder core (11) and/or a part section (30) of the internal circumference of the cylinder housing (12) prevents a projection of the tumblers (18).
4. Assembly according to Claim 3, characterized in that at least one receiving opening (28) for receiving a blocking element (29) is provided in the cylinder housing (12) in such a way that a blocking element (29) inserted into the receiving opening (28) forms a stop between the cylinder core (11) and cylinder housing (12), thus more narrowly limiting the input drive angle range (Φ) so that when the cylinder core (11) strikes against the blocking element (29) a part section (30) of the internal circumference of the cylinder housing (12) prevents the withdrawal of the tumblers (18).
5. Assembly according to Claim 4, characterized in that the blocking element (29) is a pin whose longitudinal axis extends parallel to the longitudinal axis of the cylinder core (11).
6. Assembly according to one of Claims 1 to 5, characterized in that the output drive element (2) has a cam (14) by means of which further elements of the locking mechanism can be driven.
7. Assembly according to one of Claims 1 to 5, characterized in that the output drive element (2) has a bolt which forms the locking element of the locking mechanism.

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