FI95308B - Bolt lock interacting with one or two lock cylinders - Google Patents

Description

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LOCK LOCK IN COOPERATION WITH ONE OR TWO LOCK CYLINDERS - MED EN ELLER TVÄ LÄSCYLINDRAR SAMVER-KANDE REGELLÄS

The invention relates to a latch according to the preamble of claim 1, cooperating with one or two locking cylinders of the door.

The lock frames used as safety locks use a variety of assemblies to change and transmit the rotational movement provided by the key through the lock cylinder to the lock bar. In safety locks, the input and output of the bogie 10 are forced. A lock cylinder blade is generally known which can be turned clockwise or counterclockwise with the key, i.e. in two directions. However, it has generally been used for a long time for sheet metal cylinders, which can only be turned in one direction with a key, most often clockwise.

1 5 SE 388898 discloses a lock body cooperating with one or two lock cylinders, but this can only be used with a lock cylinder operating in both directions.

Unidirectional plate deflection cylinders have long been used as lock cylinders for safety locks, so that a disc function is provided in the disc deflection cylinder 20, where the lock cylinder is connected to the torque cam of the lock body only when the lock cylinder is operated with a key. However, such a clutch cylinder clutch function is a relatively expensive solution and can cause malfunctions, e.g. due to a lack of lubrication.

The object of the invention is to provide a new, improved lock body which is suitable for a lock cylinder operating only in one direction of rotation, in which the above-described drawbacks and problems are avoided.

The object of the invention is achieved as specified in claim 1 and the subclaims. According to the invention, on the operating shaft, the torsion cam comprises a toothing arranged for a limited sector. The Ham-30 mast member comprises rack regions arranged at a distance of 2 Λ, r- “7 Λ Λ y 5 6 υ ö in the longitudinal direction of the breast plate so that said torsion cam can be mounted between said rack areas, whereby the toothing of the torsion cam at a time to move the bogie from 5 extreme positions to another. Since the solution according to the invention has only one reciprocating rack element, preferably two torsion cams and a simple transmission mechanism for moving and holding the bogie in its extreme positions, the assembly is quick to install when assembling the lock body, dimensionally accurate, reliable and inexpensive due to the use of castings.

In the door lock, said toothing of the torsion cam corresponds to a sector of about 90 ° and is detached from the tooth engagement from each of the rack elements of said rack element when the bar is in either of its extreme positions. The key-operated lock cylinder rotates the torque cam key 1 5 when removed from said toothed engagement.

A key-operated lock cylinder or the like can be mounted on said operating shaft on different sides of the lock body. Said rack element comprises two torsion cams 20 arranged symmetrically on both sides of the longitudinal cross-sectional plane of the lock body and arranged to cooperate with them for operating the lock on either side of the door or the like. This avoids the need to manufacture right- and left-handed lock frames. A commonly used plate deflection cylinder is used in the conventional direction of rotation.

Said transmission means in the door lock comprise a rotating bogie transfer and rear locking lever provided with a toothed ring 25, and said rack element has a rack area which is in constant transmission contact with said rack. This structure allows simple and reliable cooperation between the bogie and the rack element. The number of parts is also small.

Said bogie transfer and rear locking lever is also arranged to act as a rear locking means, preventing the bogie from being moved out of its extreme positions.

The door lock is provided with a spring arranged to push the transfer and rear locking lever towards the rear locking position. Thus, with one simple, 3 N --- 7

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^ J υ v u a torsion spring, preferably shaped at its ends, ensures reliable and trouble-free operation of the rear locking and locking of the bogie.

The torque cam mentioned in the door lock cooperates with the rack element in only one direction of rotation, preferably up to 5 days. This arrangement allows the use of a frequently used popular one-way rotation cylinder.

Equipping the lock body in only one lock cylinder, in order to avoid disturbances in the other side of the lock body of said rotary cam is locked in position from said meshing engagement with the detent plate 10 or the like so that said teeth with the teeth is between opposing regions of the toothed rack of the toothed rack element region. The assembly is covered with a cover plate known per se. At the same time, the arrangement also prevents unauthorized use.

The invention will now be described in more detail with reference to the accompanying drawing, in which Fig. 1 shows a lock according to the invention with the lock body cover plate removed from the bar chest plate in the extended position, Fig. 2 shows the lock body of Fig. 1 with the bar chest plate in the inserted position, Figs. Fig. 10 shows a part of the lock body of Fig. 1, cut from X to X, Fig. 11 shows a retaining plate used to prevent rotation of the second torsion cam 25 in case the lock body is only provided with a lock cylinder on one side.

In the drawing, reference numeral 1 denotes a lock, more specifically a countersunk lock and a security lock with a lock body 2, a chest plate 3 and a straight bar 4. The lock body 2 comprises an operating shaft 5 on which a key cylinder not shown can be mounted on each side of the lock body. A similar rotatable torsion cam 6 and 6 'is arranged on each side of the lock on the operating shaft 5. The torsion cam has a coupling opening 1 8 for coupling said lock cylinder. The torsion cam 6 is, via the toothing 9, as will be described in more detail later 4 - \ - -7 r-

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S ι ^ ί v_ / in cooperation with the rack and pinion regions 10a and 10b of the reciprocating rack element 8 for transmitting force to the bar 4. The linear trajectory of the rack element 8 is controlled by a guide 7 connected to the lock body 2. The rack element a rear locking lever 14 on the gear ring 16 which, as it moves, rotates about the axis 20 of the partial rotation. The lock body also has a spring 15, even pushing the lever 14 towards each of its extreme positions, i.e. the protruding locked position shown in Fig. 1 and its fully retracted position 10 shown in Fig. 2. Arrangements 4a and 21b are provided on the bogie 4. the rear locking lever 14 moves the bogie 4 from one end position to another and also provides rear locking, whereby the bogie 4 can be moved away from its end positions only by the operating shaft 5. The movement of the bogie 4 is controlled by a bolt opening 12 in the chest plate 3.

Figures 3-9 show the interaction of the torsion cam 6 and the rack element 8 in different operating positions. These show in more detail the rotatable torsion cam 6 mounted on the operating shaft 5, which has a sector A-sized toothing 9, preferably three teeth 24a, 24b and 20 24c. The outer circumference 23 of the torsion cam 6 is shown by a broken line. The rack element 8 has two rack areas 10a and 10b. These are equally distant but different from the center line 11 passing through the axis of action 5, which is parallel to the guide 7, under the control of which the tooth-rod element 8 moves between its extreme positions. Near the extreme positions of the rack element 8, the stop and guide members 19a and 19b limit and control the movements of the rack element 8 together by means of notches 25a and 25b arranged at the ends of the rack element 8. The rack region 10a preferably has three teeth 26a, 26b and 26c, of which 26a and 26c are only partial teeth for the reason described later. The rack region 30 10b preferably has three teeth 27a, 27b and 27c, of which 27c is a partial tooth for a reason to be described later. The sector A must be selected so that the toothing 9 of the torque cam 6 is not in transmission connection with the rack element 8. Thus, it is possible to move the bogie 4 from either side of the lock with either torque cam 6 or 6 '.

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Fig. 3 shows a situation in which the bar 4 of the lock 1 is in its inserted position and shows a part in the vicinity of the operating axis 5 of the lock body 2.

In Fig. 4, in order to push the bogie 4 out of the chest plate 3, 5 not shown lock cylinders have been rotated by the key, which has rotated the torsion cam 6 by an angle B with respect to Fig. 3, the first tooth 24a The rack element 8 has remained in place until now.

In Fig. 5, the rotation of the torque cam has progressed by about 90 ° from the initial position of Fig. 3, and at this point the tooth 24b of the torque cam 6 is in tooth contact with the tooth 26b. The rack element 8 has already moved a certain distance towards its second extreme position corresponding to the extended position of the bogie 4, which is defined by the notch 25a and the stop and control member 19a.

In Fig. 6, the torsion cam 6 has already rotated 180 ° with respect to the initial position shown in Fig. 3. In this figure, the rack element 8 has already moved to its extreme position, which corresponds to the extended, locking position of the bogie 4 and corresponds to that shown in Figure 1. The toothing 20 of the torsion cam 6 in Fig. 3 is now again in the central region between the rack areas 10a and 10b so that neither the torsion cam 6 nor its teeth 24a, 24b or 24c prevent the key body and the cylinder from rotating the key body on one side of the lock body 2 torsion cam 6 'as described above.

In Fig. 7, the key and the lock cylinder have rotated the torsion cam 6 from the position of Fig. 6 to such an extent that the tooth 24a of the torsion cam 6 is already in tooth contact with the tooth 27a of the rack area 10b. The rack element 8 has not yet moved from its position in Fig. 6. When the torsion cam 6 is further rotated by the lock cylinder, a situation corresponding to Fig. 3 is reached, in which the bar 4 of the lock 1 has been moved from the chest plate 3 to its inserted position.

Fig. 8 shows a situation in which, on the other side of the door, with a key, a locking cylinder blade and a torsion cam 6 ', the rack 4 is brought into the inserted position by the rack plate 3 by means of the rack element 8 and the transmission mechanism 6 * -y ^ r yoo \ j'c. The rack element 8 has therefore moved into the area of action of the limiting and control member 19b.

Fig. 9 shows a continuation of the situation of Fig. 8, in which the key and 5 the locking cylinder have started to rotate the torsion cam 6 to bring the bogie 4 out of the chest plate 3 into the extended position. When the torque cam 6 is rotated in the range of 0 ° to 180 °, the teeth 24a, 24b and 24c of the torque cam 6 do not make tooth contact with the teeth 27a, 27b of the rack area 10b nor with the tooth 27c, because the tooth 27c is shaped as only 10 partial teeth. The same also applies to the teeth of the rack area 10a when the initial situation corresponds to the second extreme position of the bogie 4 and the rack element. The shapes of the edge portions of the teeth 26a and 26c are caused by the fixing screws of the lock cylinder. Thus, the torsion cam 6 must first be rotated 180 °, in which case we are again in the situation of Fig. 3. Proceeding in the manner described above according to Figs. 3, 4 and 5, the situation of Fig. 6 is reached, in which the bar 4 of the lock 1 is obtained from the breast plate 3 in the extended position.

Fig. 10 shows a cross-section of the lock body 2, showing both torsion cams 6 and 6 '. The rack element 8 has rack areas 10a 'and 10b' corresponding to the rack areas 10a and 10b for the torsion cam 6 '20. The rack area 13 is in constant tooth contact with the toothed ring 16 of the bogie transfer and rear locking lever 14. The body part in the lock body 2 of the bogie 4 is preferably divided into two edge parts 28 and 28 ', between which said lever 14 and its spring 15 can be arranged.

Fig. 11 shows a retaining plate 17, 25 mounted on the drive shaft 5, which reliably prevents the torsion cam 6 or 6 'from rotating in the transmission connection with the rack areas 10a, 10b, 10a' or 10b 'of the rack element 8 in case the lock cylinder is not intended to be mounted on the drive shaft. 5 on both sides of the lock body 2. The retaining plate 17 is fastened in place, preferably with the locking cylinder fixing screws 30 not shown, through the lock body 2.

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

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Claims (8)

A control shaft (1) for a door or equivalent, which is read cooperates with one or two laser cylinders and comprises a reading housing (2), a post (3), a control piston (4) which is displaceable through the post (3) forward and eats between a reading position and a free position, at least one functional shaft (5), to which a key operable can be connected, only in a rotational direction, a reading cylinder and a power transmitter for effecting power transmission from the functional shaft (5) to the coil (4) to said power transmission means includes a rudder (6) mounted on the functional shaft (5), comprising a tile limited to a sector (9), and a forward and eat displaceable gear element (8), characterized in that said gear element (8) comprises spacer (10a, 10b) spaced apart from each other in the longitudinal direction of the post 30 so that said rudder (6) is mountable between said ratchet regions (10a, 10b), wherein rod the gear part (9) of the derailleur (6) is arranged to cooperate with one or the other rack-closing region (10a or 10b) during its r-rotation to move the cow (4) from one end position to another. 2. A door (1) according to claim 1, characterized in that the gear part (9) of said rudder (6) corresponds to a sector of about 5 ° and is free from coupling with said rack element (8). both rack regions (10a and 10b), since the cowl (4) is at either end of its end positions. 3. A door (1) according to claim 1 or 2, in which the sides of the reading housing (2) have a key maneuverable reading cylinder or similarly connected to a functional shaft (5), characterized in that said rack member (8) ) on both sides of a longitudinal cross-sectional plane of the reading housing (2) comprises two symmetrically arranged racks (10a, 10b) interacting with the rudder (6, 6 ') for actuating the reading (1) from a selectable side of d. 15 A door (1) according to any one of the preceding claims, characterized in that said power transmission means comprises a rotary displacement and rear reading arm (14) for the cow and a toothed element (8) provided with said gear ring (16). ) there is a rack area (13) which continuously strengthens in power transmission with said gear ring (16). 5. For a door (1) according to claim 4, characterized in that said piston's displacement and rear reading arm (14) is also arranged to function as a rear reading means which prevents the cowl from being moved away from its end positions. 25 6. For a door (1) according to claim 5, characterized in that it is provided with a spring (15) which is arranged to push the displacement and rear reading arm (14) towards a rear reading position. 7. For a door (1) according to any one of the preceding claims, characterized in that said rudder (6, 6 ') cooperates with the gear closing element (8) only in one direction of rotation, preferably clockwise. 10 9 b 3 G 6 8. For a door intended for reading (1) according to any of the preceding claims, characterized in that when the reading housing (2) is provided with only one reading cylinder, in order to avoid malfunctions, said rudder (1) is located on one side of the reading housing (2). 6 or 6 ') with an arresting disk (17) or the like 5 fixable in place free of said gear coupling, so that said gear part (9) with its teeth (24a, 24b, 24c) is within an area between said gearwheel member ( 8) Resistant racking areas (10a and 10b).