Lock with generator

Abstract

The invention relates to a lock with a cam (1), the rotation of which is transmitted to a latch (6) and a release mechanism (3) to retract the latch (6) and, via the release mechanism (3), to actuate an energy converter (15) to generate electrical energy. To prevent the energy converter (15) from being actuated even when the latch slides down a strike plate, a motion transmission element (7) independent of the movement of the latch (6) is provided. This element engages a drive arm (4) of the release mechanism (3) via an actuating arm (8) to rotate the release mechanism (3) at an increased angular velocity when the handle is actuated.

Description

field of technology

[0001] The invention relates to a lock with a latch that retracts into a forward position relative to a forend by turning a follower, and with a trigger that pivots accordingly and actuates an energy converter. The trigger has a drive arm and an output arm. The output arm powers the energy converter to generate electrical energy. State of the art

[0002] DE 10 2020 103 323 A1 describes a lock of this type. A drive arm of a trigger is actuated by a control flank of a latch tail when the latch is displaced independently of the actuation of a handle. In the current state of the art, the trigger is also displaced when the latch slides along the strike plate with its bevel when a door equipped with the lock is closed. This can lead to high angular velocities of the trigger, so that the energy converter is subjected to excessive force, which can cause damage. Summary of the invention

[0003] The invention is based on the object of developing a generic lock in such a way that it is advantageous in use that the disadvantages described above are avoided.

[0004] The problem is solved by the invention specified in the claims, wherein the subclaims are not only advantageous developments of the invention specified in the main claim, but also represent independent solutions to the problem.

[0005] First and foremost, a lock is proposed in which a latch is retracted by turning a nut, and along with the turning of the nut, a release is also actuated, which acts on an energy converter by which the mechanical movement of the release is converted into electrical energy. According to the invention, the movement of the release is picked up directly by the nut. For this purpose, a movement transmission element is provided which is independent of the latch and driven by the nut and which engages the drive arm of the release with an actuating arm. In a further development, it is provided that the actuating arm has a drive flank, in particular in the form of a first sliding flank. This sliding flank can have a plurality of sections. The drive arm of the release can form an output flank, in particular in the form of a second sliding flank, which can also have a plurality of sections.The sections of the two flanks can roll against each other during a first phase of the movement of the motion transmission element. During this rolling movement, a linear displacement of the motion transmission element can be transferred to a rotational movement of the trigger. A sliding movement can also be superimposed on the rolling movement. The two flanks can thus also roll against each other. During the first phase of the movement of the motion transmission element, the trigger pivots from an initial position to a pivoting end position. During this pivoting movement, the energy converter is acted upon. For this purpose, an actuating projection or an actuating cam of the trigger output arm can act upon a tongue of the energy converter, as is fundamentally known from DE 10 2020 103 323 A1.In a second phase following the first phase, a section of the drive flank slides along a section of the output flank without the trigger being rotated any further. It is considered advantageous if the pivot angle of the trigger during the first phase of the pivoting displacement of the nut is greater, and in particular at least twice as great, as the pivot angle of the nut in the first phase. In particular, it is 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 can 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 movement transmission element is a slide, which is guided in particular on a lock base of the lock housing.The slider can have a pull end that is attached to the nut. It can be provided that the pull end is attached to a nut arm. The motion transmission element can have an elongated hole into which a bearing pin firmly connected to the lock housing engages, so that the elongated hole is guided on the bearing pin. The direction of movement of the motion transmission element can run obliquely 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 portion that engages a bore in the nut or nut arm. The first sliding flank can be formed by an actuating arm of the motion transmission element. The output flank can have two sections that are at an obtuse angle to one another and that engage the output flank of the drive arm one after the other when the motion transmission element is moved.The drive flank and the output flank can each have multiple flank sections. The flank sections assigned to 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 free space can extend rearward of the central section, into which the leaf spring element can elastically enter when it is acted upon by the actuating arm of the motion transmission element during rotation of the nut. It can further be provided that the actuating projection, which acts upon a tongue of the energy converter at the end of the first movement phase, has a metallic casing. It can be a steel spring clip. Short description of the drawings

[0006] An embodiment of the invention is explained below with reference to the accompanying drawings. They show: Fig. 1 in a plan view of a lock case, a mortise lock which can be inserted into a rebate-side recess of a door, Fig. 2 in the form of an exploded view, the elements of the mortise lock which are essential for the invention, Fig. 3 a movement transmission element 7 and a trigger 3 in a first perspective view, Fig. 4 the movement transmission element 7 and the trigger 3 in a second perspective view, Fig. 5 the in the Figure 1 section marked V with pre-closed latch and a non-actuated handle, Fig. 6 a representation according to Figure 5 , whereby by actuating the trigger the nut 1 has been rotated by an angle α 1 of approximately 2° and the trigger 3 has been rotated by an angle β 1 of approximately 8°, Fig. 7 a representation according to Figure 5, wherein the nut 1 has been rotated by an angle α 2 of approximately 6° and the trigger 3 has been rotated by an angle β 2 of approximately 22°, Fig. 8 a representation according to Figure 5 , wherein the nut 1 has been rotated by an angle α 3 of 8° and the trigger 3 has rotated by an angle β 3 of approximately 25° and has reached its pivoting end position, Fig. 9 a representation according to Figure 5 , whereby the nut 1 has been rotated by an angle α 4 of 12° and the trigger 3 has 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 the section XI in Figure 5 , Fig. 12enlarges 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. Therefore, the disclosure of this document is fully incorporated into the disclosure of this patent application, also in order to claim only features disclosed therein. The lock disclosed therein shows, in particular, a bolt that can be moved by a key or a locking cylinder from a closed position to a first or a second pre-locked position, as well as tumbler elements with which the bolt can be held in the closed position and in the pre-locked position.As with the lock according to the invention, during the pre-closing of the bolt, a projection of the bolt engages a drive arm of a trigger 3, designated here by reference numeral 5 in the drawings, in order to displace the trigger 3 against the restoring force of a spring element 29 from an initial position into an actuating position, in which an actuating projection 16 acts on 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) in order to induce an electrical voltage in the coil. The tongue 23 is acted upon by an actuating projection 16 of the trigger 3, which has a metallic casing 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 is the case with the Figure 10 As shown, the latch head 6' can be deflected by sliding a bevel of the latch head against a strike plate of a door frame. Unlike the generic lock, however, the trigger 3 does not move along with it.

[0009] The trap 6 can be opened by turning a nut 1 from the Figure 5 position shown above the Figures 7 to 9 shown intermediate positions into a fully retracted position, as shown in the Figure 10 shown, are retracted. For this purpose, a nut arm 25 of the nut 1 engages a stop 6" of a latch tail of the latch 6.

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

[0011] The nut 1 has a square opening 28 into which a pusher pin (not shown) can be inserted. Along with the rotation of the nut 1, a pusher nut spring 27 is tensioned, which is attached at one end to the housing and at the other end to a nut arm 26, in order to return the nut 1 to the position shown in the Figure 5 to swivel to the starting position shown.

[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' positioned at an obtuse angle to each other. However, the two sliding flank sections 9, 9' can also lie on a curved line. When the nut 1 is rotated, these two sliding flank sections 9, 9' successively move into a motion transmission position relative to a drive arm 4 of the trigger 3 in two consecutive movement phases.

[0013] The drive arm 4 of the trigger 3, which can be made of plastic, is shorter than an 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 direction shown in the Figure 5shown starting position. 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 sliding flank sections 10, 10' arranged next to one another. The sliding flank sections 10, 10' are acted upon successively by the sliding flank sections 9, 9' of the actuating arm 8 during the linear displacement of the movement transmission element 7 in order to release the trigger 3 from the Figure 5 shown starting position over the ones shown in the Figures 6 and 7 shown intermediate positions into the Figure 8 to swivel to the end position shown.

[0015] The output flank of the drive arm 4 is formed by a leaf spring element 19 having two legs 19' with which the leaf spring element 19 is clipped onto the drive arm 4. For this purpose, the trigger 32 forms projections 21, which are encompassed by the legs 21. Extending rearward of the sliding flank sections 10, 10' formed by the leaf spring element 19 is a free space 20 into which the leaf spring element 19 can engage during the sliding flank sections 9, 9' sliding on the output flank 10, 10' formed by the leaf spring element 19.

[0016] The functionality of the lock is explained below using the drawings.

[0017] The Figure 5shows an initial position of the lock, in which the latch 6 is fully pre-locked and the latch arm 25 rests against a stop 30 of the housing. The latch 6, actuated by the latch spring 24, rests against the stop 6" on this latch arm 25. The actuating projection 16 of the trigger 3 is spaced 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 is shown after the nut 1 has been rotated by an angle α 1 of approximately 3°. The motion transmission element 7 has shifted slightly linearly, with the flank section 9 acting on the flank section 10. In the course of this action, the trigger 3 has shifted by an angle β 1 of approximately 8° until the actuating projection 16 reaches the tongue 23.

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

[0020] The Figure 8 and the enlarged illustration figure 12 show a subsequent illustration in which the trigger 3 has reached its pivoting end position. The nut 1 has rotated by a total angle α 3 of approximately 8°. The trigger 3 has rotated by a total angle β 3 of 25°. Figure 12 shows that now the flank section 9 has moved away from the flank section 10 and the flank section 9' is in contact with the flank section 10'.

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

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

[0023] The above statements serve to explain the inventions covered by the application as a whole, which each independently develop the state of the art by at least the following combinations of features, whereby two, several or all of these combinations of features can also be combined, namely:

[0024] A lock characterized by a movement transmission element 7 which is independent 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 movement transmission element 7, acts on an output flank 10, 10' of the drive arm 4 in such a way that the trigger 3 is pivoted and slides along the output flank 10, 10' in a second phase of the displacement following the first phase.

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

[0027] A lock which is characterized in that the movement transmission element 7 is fastened to the nut 1 by a pull end 11, is guided by a slot 12 on a bearing pin 13 and during its movement is displaced 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 movement 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 deflect into a free space 20 when the actuating arm 8 is acted upon 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 greater, 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 casing 22 which acts on a tongue 23 of the energy converter 15.

[0033] All disclosed features are essential to the invention (individually, but also in combination with one another). The disclosure of the application hereby fully incorporates the disclosure content of the associated / attached priority documents (copy of the prior application), also for the purpose of incorporating features of these documents into claims of the present application. The subclaims, even without the features of a referenced claim, characterize independent inventive developments of the prior art with their features, in particular for filing divisional applications based on these claims. The invention specified in each claim may additionally comprise one or more of the features provided in the above description, in particular with reference numerals, and / or specified in the list of reference numerals.The invention also relates to designs in which individual features mentioned in the above description are not implemented, in particular insofar as they are clearly unnecessary for the respective intended use or can be replaced by other technically equivalent means. List of reference symbols 1 nut 19' leg 2 axis 20 Free space 3 trigger 21 projection 4 drive arm 22 Sheathing 5 Output arm 23 Tongue 6 trap 24 trap spring 6' Trap head 25 Low in nuts 6" stop 26 Low in nuts 7 Motion transmission element / tension element 27 Pusher spring 28 Square opening 8 Actuating arm 29 spring element 9 Sliding flank section / drive flank 30 stop 9' Sliding flank section / drive flank α 1 Swivel angle of nut 1 α 2 Swivel angle of nut 1 10 Sliding flank section / output flank α 3 Swivel angle of nut 1 α 4 Swivel angle of nut 1 10' Sliding flank section / output flank β 1 Shutter release angle 3 β 2 Shutter release angle 3 11 End of train β 3 Shutter release angle 3 12 slot 13 Bearing journal 14 drilling 15 Energy converter 16 Actuating projection 17 Faceplate 18 Low in nuts 19 spring element

Claims

1. Lock with a latch (6) which is displaced back from a forward position relative to a face plate (17) by turning a nut (1) and a trigger (3) which pivots concomitantly and actuates an energy converter (15), said trigger having a drive arm (4) and an output arm (5), characterized by a movement 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).

2. 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 movement transmission element (7), acts on an output flank (10, 10') of the drive arm (4) in such a way that the trigger (3) is pivoted and slides along the output flank (10, 10') in a second phase of the displacement following the first phase.

3. Lock according to claim 2, characterized in thatthe two flanks (9, 9'; 10, 10') roll against each other in the first phase and the trigger (3) reaches its end-of-swing position at the beginning of the second phase.

4. Lock according to one of the preceding claims, characterized in that the movement transmission element (7) is fastened to the nut (1) with a pulling end (11), is guided with a slot (12) on a bearing pin (13) and, during its movement, is displaced obliquely to the linear displacement of the latch (6).

5. Lock according to claim 4, characterized in that the pulling end (11) is a pin projecting from a flat body forming the movement transmission element (7) and engaging in a bore (14) of the nut (1).

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

7. Lock according to claim 6, characterized in thatthe spring element (19) is a leaf spring which can deflect into a free space (20) when the actuating arm (8) is acted upon.

8. Lock according to one of claims 6 or 7, characterized in 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).

9. Lock according to one of the preceding claims, characterized in that the trigger (3) pivots in the first phase of its displacement by an angle (β3) which is greater, in particular at least twice as large, as the pivot angle (α3) of the nut (1) in the first phase.

10. Lock according to one of the preceding claims, characterized in that an actuating projection (16) of the trigger (3) has a casing (22) made of metal which acts on a tongue (23) of the energy converter (15).

11. Castle, characterized byone or more of the characterizing features of any of the preceding claims.

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