Lock with generator

Description

field of technology

[0001] The invention relates to a lock with a latch that is moved back into a leading position relative to a faceplate by rotating a nut, and a trigger that pivots concurrently and actuates an energy converter, the trigger having a drive arm and an output arm. The output arm supplies the energy converter with electrical energy to generate electrical energy. State of the art

[0002] A lock of this type is described in DE 10 2020 103 323 A1. Here, a drive arm of a release mechanism is actuated by a control flank of a latch tail when the latch is displaced independently of any actuation of a handle. In the prior art, the release mechanism is also displaced when the latch, upon closing a door equipped with the lock, slides along the strike plate with its latch angle. This can lead to high angular velocities of the release mechanism, causing the energy converter to be subjected to excessive force, which can result in damage. Summary of the invention

[0003] The invention is based on the objective of further developing a generic lock in such a way as to be more advantageous in use, so that the disadvantages described above are avoided.

[0004] The problem is solved by the invention specified in the claims.

[0005] The invention proposes, first and foremost, a lock in which turning a nut retracts a latch and, simultaneously with the turning of the nut, also actuates a trigger that energizes a power converter, which converts the mechanical movement of the trigger into electrical energy. According to the invention, the movement of the trigger is derived directly from the nut. For this purpose, a motion transmission element, independent of the latch's movement and driven by the nut, is provided, which engages the drive arm of the trigger with an actuating arm. In a further embodiment, the actuating arm is provided with a drive flank, in particular in the form of a first sliding flank. This sliding flank can have several sections. The drive arm of the trigger can form an output flank, in particular in the form of a second sliding flank, which can also have several sections.The sections of the two flanks can roll against each other in a first phase of the motion transmission element's displacement. During this rolling motion, a linear displacement of the motion transmission element can be transferred to a rotary motion of the trigger. A sliding motion can also be superimposed on the rolling motion. The two flanks can thus also roll against each other. During the first phase of the motion transmission element's displacement, the trigger pivots from an initial position to a pivoting end position. During this pivoting motion, the energy converter is actuated. For this purpose, an actuating projection or an actuating cam of the trigger's output arm can actuate a tongue of the energy converter, as is generally known from DE 10 2020 103 323 A1.In a second phase following the first, a section of the drive flank slides along a section of the output flank without the trigger being further rotated. It is considered advantageous if the pivot angle of the trigger during the first phase of the pivoting movement of the nut is larger, and in particular at least twice as large, as the pivot angle of the nut in the first phase. It is particularly provided that the pivot angle of the nut within the first phase is less than 10° or 12° and the pivot angle of the trigger is greater than 20° or 24°. It may be provided that the pivot angle of the nut within the first phase is approximately 8° and the pivot angle of the trigger is approximately 25°. It is further considered advantageous if the motion transmission element is a slide, in particular one guided on a lock base of the lock housing.The slide can have a pull end attached to the cam. The pull end can also be attached to a cam arm. The motion transmission element can have an elongated hole into which a bearing pin, fixed to the lock housing, engages, such that the elongated hole is guided by the bearing pin. The direction of movement of the motion transmission element can be oblique to the direction of movement of the latch. The motion transmission element can be a flat body in which the pull end forms an angled section that engages in a bore of the cam or cam arm. The first sliding flank can be formed by an actuating arm of the motion transmission element. The output flank can have two sections at an obtuse angle to each other, which engage successively with the output flank of the drive arm when the motion transmission element is displaced.The drive flank and the output flank can each have several flank sections. The flank sections associated with the drive arm of the trigger can be formed by a spring element. The spring element can be a leaf spring element. It can have a leg at each of its two ends, with which the leaf spring element is clipped over projections of the drive arm. A central section of the leaf spring element extending between the two legs forms sliding flank sections. A clearance can extend behind the central section into which the leaf spring element can elastically enter when it is actuated by the actuating arm of the motion transmission element during rotation of the nut. It can also be provided that the actuating projection, which acts on a tongue of the energy converter at the end of the first movement phase, has a metallic sheath. This can be a steel spring clip. Brief description of the drawings

[0006] An embodiment of the invention is explained below with reference to the accompanying drawings. These show: Fig. 1 shows a top view of a lock case, a mortise lock that can be inserted into a rebate-side recess of a door, Fig. 2 shows an exploded view of the essential elements of the mortise lock for the invention, Fig. 3 shows a motion transmission element 7 and a trigger 3 in a first perspective view, Fig. 4 shows the motion transmission element 7 and the trigger 3 in a second perspective view, Fig. 5 shows the in the Figure 1 Section marked V with a pre-closed latch and an unactuated push button, Fig. 6 a representation according to Figure 5 , wherein, by actuating the push button, the nut 1 has been rotated by an angle α 1 of approximately 2° and the release 3 has been rotated by an angle β 1 of approximately 8°, Fig. 7 a representation according to Figure 5, wherein the nut 1 was rotated by an angle α 2 of about 6° and the trigger 3 was rotated by an angle β 2 of about 22°, Fig. 8 a representation according to Figure 5 , wherein the nut 1 was rotated by an angle α 3 of 8° and the release 3 was rotated by an angle β 3 of approximately 25° and reached its pivoting end position, Fig. 9 a representation according to Figure 5 , wherein the nut 1 was rotated by an angle α 4 of 12° and the release 3 remained in its pivoting end position, Fig. 10 a representation according to Figure 5 , whereby the nut was rotated by a total angle of 26° without the trigger 3 rotating further, Fig. 11 enlarges section XI in Figure 5 , Fig. 12 enlarges section XII in Figure 8 and Fig. 13 enlarges section XIII in Figure 9 . Description of the embodiments

[0007] The lock shown in the drawings essentially corresponds to the lock described in DE 10 2020 103 323 A1. The lock disclosed therein shows, in particular, a bolt that can be moved by a key or a locking cylinder from a retracted position to a first or a second forward-locked position, as well as locking elements with which the bolt can be held in the retracted position and in the forward-locked position.As in the lock according to the invention, during the bolt's initial closing action, a projection of the bolt engages a drive arm of a release 3, designated here by reference numeral 5 in the drawings, to move the release 3 against the restoring force of a spring element 29 from a starting position to an actuating position. In this position, an actuating projection 16 engages an energy converter 15 to generate electrical energy, which can be used, for example, to operate a radio module to transmit locking status data. The energy converter 15 has a tongue 23 with which a magnet (not shown) is mechanically displaced relative to a coil (not shown) to induce an electrical voltage in the coil. The tongue 23 is actuated by an actuating projection 16 of the release 3, which has a metallic sheath 22 formed by a steel clamp.

[0008] The lock shown in the drawings has a latch 6 with a latch head 6', which is guided in a window of a faceplate 17. Against the restoring force of a latch spring 24, the latch 6 can be returned to a closed position when a door equipped with the lock is closed, as described by the Figure 10 This is shown by the mechanism evading the movement by sliding a trap angle of the trap head 6' on a strike plate of a door frame. Unlike a lock of this type, however, the trigger 3 does not move along with it.

[0009] Trap 6 can be removed by turning a nut 1 from the one in the Figure 5 position shown regarding the in the Figures 7 to 9 the intermediate positions shown are in a completely withdrawn position, as described by the Figure 10 shows that it can be withdrawn. For this purpose, a trap arm 25 of the nut 1 engages a stop 6" of a trap tail of the trap 6.

[0010] A nut arm 18 has a bore 14 into which a pull end 11, formed by an angled end section of a slide, engages. The slide forms a motion transmission element 7, which is formed by a flat metal piece and has an elongated hole 12 into which a bearing pin 13, attached to the lock housing, engages, so that when the nut 1 is rotated, the motion transmission element 7 moves essentially linearly in one direction obliquely to the direction of displacement of the latch 6.

[0011] The nut 1 has a square opening 28 into which a push-button spindle (not shown) can be inserted. As the nut 1 rotates, a push-button spindle spring 27 is tensioned. One end of the spring is attached to the housing, and the other end to a spindle arm 26, in order to return the nut 1 to its original position. Figure 5 to swivel the depicted starting position.

[0012] The motion transmission element 7 has an actuating arm 8, which forms a sliding flank on one narrow side. The sliding flank is a drive flank and consists of two sliding flank sections 9, 9' at an obtuse angle to each other. The two sliding flank sections 9, 9' can also lie on an arc. When the nut 1 is rotated, these two sliding flank sections 9, 9' successively enter a motion transmission position relative to a drive arm 4 of the release 3 in two successive phases of movement.

[0013] The drive arm 4 of the trigger 3, which can be made of plastic, is shorter than the output arm 5 of the trigger 3, which forms the actuating projection 16. The trigger 3 can be pivoted about an axis 2 and forms a two-armed lever. The trigger 3 is actuated by a spring element 29 in the Figure 5The starting position shown is maintained. During rotation of the trigger 3, the spring element 29 is tensioned, so that the spring element 29 can exert a restoring effect on the trigger 3.

[0014] The drive arm 4 forms a sliding flank with an output flank, which consists of adjacent sliding flank sections 10, 10'. During the linear displacement of the motion transmission element 7, the sliding flank sections 10, 10' are successively actuated by the sliding flank sections 9, 9' of the actuating arm 8 in order to release the trigger 3 from the Figure 5 the starting position shown above the one in the Figure 6 and 7 the intermediate positions shown in the Figure 8 to swivel to the depicted final position.

[0015] The output flank of the drive arm 4 is formed by a leaf spring element 19, which has two legs 19' by which the leaf spring element 19 is clipped onto the drive arm 4. For this purpose, the release 32 forms projections 21 which are engaged by the legs 21. Behind the sliding flank sections 10, 10' formed by the leaf spring element 19, a clearance 20 extends into which the leaf spring element 19 can enter during the sliding flank sections 9, 9' on the output flank 10, 10' formed by the leaf spring element 19.

[0016] The functionality of the lock is explained below with reference to the drawings.

[0017] The Figure 5Figure 1 shows the initial position of the lock, in which the latch 6 is fully engaged and the latch arm 25 rests against a stop 30 of the housing. The latch 6, actuated by the latch spring 24, is supported by the stop 6" on this latch arm 25. The actuating projection 16 of the release 3 is spaced apart from the tongue 23 of the energy converter 15. The enlarged illustration in Figure 11 It can be seen that a flank section 9 of the actuating arm 8 rests against a flank section 10 of the spring element 19.

[0018] The Figure 6 The lock, after rotation of the nut 1 by an angle α 1 of approximately 3°, exhibits a slight linear displacement of the motion transmission element 7, with flank section 9 acting upon flank section 10. During this action, the release 3 has shifted by an angle β 1 of approximately 8° until the actuating projection 16 reaches the tongue 23.

[0019] The Figure 7 Figure 1 shows a subsequent representation after the nut 1 has been displaced by a total angle α 2 of approximately 6°. As a result of the associated linear displacement of the motion transmission element 7, the release 3 was further pivoted by a total pivot angle β 2 of 22°. During this movement, the two flank sections 9, 9', 10, 10' rolled against each other.

[0020] The Figure 8 The enlarged illustration 12 shows a subsequent representation in which the release 3 has reached its final pivoting position. The nut 1 has rotated a total of approximately 8° by an angle α 3. The release 3 has rotated a total of 25° by an angle β 3. Figure 12 shows that flank section 9 has now moved away from flank section 10 and flank section 9' is adjacent to flank section 10'.

[0021] The Figure 9 and the enlarged view in Figure 13Figure 1 shows a subsequent representation in which the nut 1 was rotated by an angle α 3 of 12° and the trigger maintained its angular position β 3 of 25°. During this movement of the nut 1, the flank section 9' slid along the flank section 10'.

[0022] The Figure 10 Figure 1 shows the pivoting position of nut 1, which has been rotated by an angle α 4 of 26°. Here too, flank section 9' has been displaced relative to flank section 10'.

[0023] The foregoing statements serve to explain the inventions covered by the application as a whole, which further develop the prior art at least by the following combinations of features, provided that they fall within the scope of protection defined in the claims.

[0024] A lock characterized by a motion transmission element 7, which is independent of the movement of the latch 6 and driven by the nut 1, and which engages the drive arm 4 with an actuating arm 8.

[0025] A lock characterized in that the actuating arm 8 has a drive flank 9, 9' which in a first phase of the displacement of the motion transmission element 7 acts upon an output flank 10, 10' of the drive arm 4 such that the release 3 is pivoted and in a second phase of displacement following the first phase slides along the output flank 10, 10'.

[0026] A lock characterized in that the two flanks 9, 9'; 10, 10' roll against each other in the first phase and the release 3 reaches its pivoting end position at the beginning of the second phase.

[0027] A lock characterized in that the motion transmission element 7 is attached to the nut 1 with a pull end 11, is guided by a slot 12 on a bearing pin 13 and, during its movement, shifts obliquely to the linear displacement of the latch 6.

[0028] A lock characterized in that the pull end 11 is a pin projecting from a flat body forming the motion transmission element 7, which engages in a bore 14 of the nut 1.

[0029] A lock characterized in that the output flank 10, 10' is formed by a spring element 19 attached to the drive arm 4.

[0030] A lock characterized in that the spring element 19 is a leaf spring which can spring into a free space 20 when the actuating arm 8 is actuated and / or that the spring element 19 has fastening legs 19' with which the spring element 19 is clipped onto projections 21 of the drive arm 4.

[0031] A lock characterized in that the trigger 3 pivots in the first phase of its displacement by an angle β3 which is larger, in particular at least twice as large, as the pivot angle α3 of the nut 1 in the first phase.

[0032] A lock characterized in that an actuating projection 16 of the trigger 3 has a metal sheath 22 which acts upon a tongue 23 of the energy converter 15.

[0033] The invention also relates to design forms in which individual features mentioned in the preceding description are not realized, in particular insofar as they are recognizably unnecessary for the respective purpose or can be replaced by other technically equivalent means, within the scope of the invention specified in the patent claims. List of reference symbols 1 nut 19 spring element 2 axis 19' leg 3 trigger 20 open space 4 drive arm 21 projection 5 Drive arm 22 sheathing 6 trap 23 Tongue 6' Traphead 24 Trap spring 6" stop 25 Trap arm 7 Motion transmission element / traction element 26 Nut-free 27 Push button spring 8 Actuating arm 28 Square opening 9 Sliding flank section / Driving flank 29 spring element 30 stop 9' Sliding flank section / Driving flank α 1 Swivel angle of nut 1 10 Sliding flank section / output flank α 2 Swivel angle of nut 1 α 3 Swivel angle of nut 1 10' Sliding flank section / output flank α 4 Swivel angle of nut 1 β 1 Swivel angle of the trigger 3 11 end of train β 2 Trigger swivel angle 3 12 Slotted hole β 3 Swivel angle of the trigger 3 13 bearing journal 14 Drilling 15 Energy converter 16 Operational advantage 17 Stulp 18 Nussarm

Claims

1. A lock comprising a latch (6) that is moved back from an advanced position relative to a strike plate (17) by rotating a nut (1), and a trigger (3) that pivots in conjunction therewith and actuates an energy converter (15), which comprises a drive arm (4) and a driven arm (5), characterized by a motion transmission element (7) that is independent of the latch's (6) movement, driven by the nut (1), and engages with an actuating arm (8) on the drive arm (4).

2. A lock according to claim 1, characterized in that the actuating arm (8) has a drive flank (9, 9') which, in a first phase of the displacement of the motion transmission element (7), acts on a driven flank of the drive arm (4) in such a way that the trigger (3) is pivoted and, in a second phase of displacement following the first phase, slides along the driven flank (10, 10').

3. A lock according to claim 2, characterized in that the two flanks (9, 9'; 10, 10') roll away from each other in the first phase, and the trigger (3) reaches its pivoting position at the start of the second phase.

4. A lock according to one of the preceding claims, characterized in that the motion transmission element (7) is secured to the nut (1) by a pull end (11), is guided through a slotted hole (12) in a bearing journal (13), and, during its movement, moves obliquely relative to the linear displacement of the latch (6).

5. A lock according to claim 4, characterized in that the pull end (11) is a pin projecting from a flat body forming the motion transmission element (7), which engages in a bore (14) of the nut (1).

6. A lock according to any of the preceding claims, characterized in that the output flank (10, 10') is formed by a spring element (19) attached to the drive arm (4).

7. A lock according to claim 6, characterized in that the spring element (19) is a leaf spring that can compress into a clearance (20) when the actuating arm (8) is actuated.

8. A lock according to any one of claims 6 or 7, characterized in that the spring element (19) has mounting tabs (19') by which the spring element (19) is clipped onto projections (21) of the drive arm (4).

9. A lock according to any of the preceding claims, characterized in that, during the first phase of its movement, the trigger (3) pivots through an angle (β3) that is greater than, and in particular at least twice as large as, the pivot angle (α3) of the nut (1) during the first phase.

10. A lock according to any of the preceding claims, characterized in that an actuating projection (16) of the trigger (3) comprises a metal sleeve (22) that acts on a tongue (23) of the energy converter (15).

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