Coupling component for connecting a reversible belt tensioner drive and method for adjusting a coupling pawl of a coupling component

Abstract

A coupling component is proposed for connecting a reversible belt tensioner drive of a belt retractor to a belt spool of the belt retractor. This component comprises a gear (28) associated with the belt tensioner drive (18), a base (32) on which a coupling pawl (34) is arranged, a coupling element (44) that is slidably between a coupling position in which the gear (28) and the base (32) are rotationally fixed to each other, and a release position in which the gear (28) and the base (32) are rotatable relative to each other, and an actuation element (68) that is rotatable relative to the base (32) from an initial position to an actuation position in order to move the coupling pawl (34) from the initial position to the coupling position. Furthermore, a method for moving a coupling pawl (34) of a coupling component (24) from an initial position to a release position is proposed.

Description

[0001] The invention relates to a coupling component for connecting a reversible seatbelt tensioner drive. The invention also relates to a method for adjusting a coupling pawl of a coupling component.

[0002] Seatbelt retractors for vehicles are well-known and usually feature a safety device in the form of one or more seatbelt tensioners.

[0003] Seatbelt pretensioners provide restraint for vehicle occupants in a deployment scenario or shortly before a potential deployment scenario by tightening the seatbelts in contact with the occupants before an occupant is thrown forward and other occupant restraint devices are triggered. Tightening the seatbelts eliminates belt slack (loose webbing against the occupant) and the film reel effect (loosely wound webbing on the retractor), allowing the occupant to participate in the vehicle's deceleration sooner. Different types of seatbelt pretensioners are available.

[0004] Firstly, reversible belt tensioner drives are known that can rotate the belt spool in the tensioning direction and reversibly tighten the belt. A reversible belt tensioner drive typically comprises an electric motor, gears, and a pawl. The pawl can engage with a drive wheel coupled to the belt spool. Thus, the rotary motion of the electric motor, when the pawl is engaged, can be transferred to the belt spool via the gears and rotated in the tensioning direction.

[0005] On the other hand, there are high-performance belt tensioners. These tighten the belt in a triggering scenario and are usually pyrotechnically driven. The ignition of a propellant charge in a gas generator provides enough energy in a very short time to tighten the belt and rotate the belt reel in the tightening direction.

[0006] Force limiters are used in conjunction with seatbelt pretensioners. These ensure that the restraining force of the seatbelt acting on the vehicle occupant after pretensioning does not increase excessively during vehicle deceleration. This is achieved by allowing the force limiter to rotate the belt reel against a high resistance force in the unwinding direction, even in a locked state, when a certain torque is exceeded. This torque is exerted on the belt reel due to high tensile force. Thus, a certain length of webbing can be unwound from the belt reel.

[0007] However, the rotation of the belt spool also rotates the drive wheel coupled to it in the opposite direction to the tensioning direction. This means that if the clutch pawl engages with the drive wheel, it would, via the gears, also rotate the electric motor of the reversible belt tensioner drive, resulting in a resistive torque. Consequently, when limiting the force, not only would the resistive torque of the force limiter itself have to be overcome, but also an unpredictable resistance originating from the electric motor and the gearbox between the electric motor and the belt spool.

[0008] To prevent this, in the prior art the torque transmission between clutch pawl and drive wheel is interrupted when the power tensioner is triggered.

[0009] For example, the high acceleration of the drive wheel by the activated pre-tensioner is used to eject the clutch pawl. However, it is possible that the clutch pawl is not accelerated sufficiently and / or does not lock into the disengaged position.

[0010] The object of the invention is to provide a mechanism in which the reversible belt tensioner drive is reliably disconnected from the belt spool when the power tensioner drives the belt spool.

[0011] This problem is solved according to the invention by a coupling component for connecting a reversible belt tensioner drive of a belt retractor to a belt spool of the belt retractor, comprising a gear associated with the belt tensioner drive, a base on which a clutch pawl is arranged which is adjustable between a starting position in which it does not engage with a drive wheel associated with the belt spool and a clutch position in which it can engage with the drive wheel, a coupling element which is displaceable between a coupling position in which the gear and the base are rotationally fixed to each other and a release position in which the gear and the base are rotatable relative to each other, and an actuation element which is rotatable relative to the base from a starting position to an actuation position in order to move the clutch pawl from the starting position to the clutch position.wherein the control element has a lifting element which is located between the coupling pawl and the coupling element when the control element is in the control position, such that a movement of the coupling pawl in a radial direction moves the coupling element from the coupling position to the release position.

[0012] The basic idea of ​​the invention is to design the gear and the base separately from each other and to provide a coupling element by means of which the gear and the base can be coupled in a rotationally fixed manner.

[0013] The gear is rotationally fixed to the base as long as the coupling element is in a coupling position, whereby the coupling element can be moved from the coupling position to a release position. This is achieved via the lifting element of the control element, as this is located between the coupling pawl and the coupling element, so that when the coupling pawl moves, the coupling element is moved to the release position via the lifting element.

[0014] Consequently, when the coupling element is in the release position, no torque can be transmitted between the gear and the base. This also applies when the coupling pawl is engaged with the drive wheel of the belt spool.

[0015] In this state, the power tensioner can be triggered and drive the belt reel without the reversible belt tensioner drive or its components being "dragged along" by the power tensioner.

[0016] A radial movement of the pawl occurs when the power belt tensioner is triggered. This is typically achieved via an ejection geometry of the pawl, which, in the engaged position, is positioned such that a rapid rotational movement of the drive wheel, caused by an activated power tensioner rotating the belt retractor in the tensioning direction, is ejected. This movement is accompanied by a movement of the coupling element from the engaged position to the release position.

[0017] At the same time, the control element has the function of moving the clutch pawl from the starting position to the clutch position.

[0018] The coupling element can be designed in the shape of a ring segment and have a coupling section formed by a radially projecting coupling web.

[0019] This allows the rotationally fixed connection between the gear and the base in the coupling position to be easily implemented using the coupling link. At the same time, this represents a particularly stable and space-saving method of rotationally fixed coupling of the components.

[0020] Furthermore, the gear can have a recess, wherein the coupling section of the coupling element can protrude into the recess when the coupling element is in the coupling position and can be completely outside the recess when the coupling element is in the release position.

[0021] A recess can also be easily incorporated into the gear.

[0022] The coupling bridge can form a locking connection with the recess when a coupling element is in the coupling position.

[0023] This ensures that the coupling element is locked in the coupling position by the locking connection of the coupling bridge with the recess and does not move from this position unintentionally.

[0024] Furthermore, such a locking connection can be manufactured particularly easily and designed so that it releases upon reaching a certain force. This is especially important to ensure that movement of the coupling element from the locked position to the unlocked position is still possible via adjustment of the coupling pawl.

[0025] Furthermore, when a coupling element is in the release position, the coupling link can be supported on a support surface provided on the gear, thus blocking movement of the coupling element into the coupling position. This prevents the coupling element from unintentionally moving back into the coupling position.

[0026] The gear can be ring-shaped, and the base can be located at least within the gear. This allows for a particularly space-saving arrangement of gear and base.

[0027] Furthermore, a guide geometry for translational guidance of the coupling element can be formed between the coupling element and the base, which is formed by a groove and by a guide web projecting into the groove.

[0028] Due to the guide geometry, the coupling element performs a defined movement when adjusted from the coupling position to the release position (and back again).

[0029] The design of the guide geometry by means of the groove and the guide rib projecting into the groove can be manufactured easily, is stable and space-saving.

[0030] The coupling element can be adjusted directly or indirectly by moving the coupling pawl around the pivot axis.

[0031] If the coupling element is directly adjusted by moving the coupling pawl around the pivot axis, this has the advantage that no other parts need to be moved and thus the coupling element can be adjusted even if the coupling pawl has only a small amount of kinetic energy.

[0032] If the coupling element is adjusted indirectly by moving the coupling pawl around the pivot axis, it can be achieved that, by interposing further components, even a small movement of the coupling pawl is sufficient to adjust the coupling element.

[0033] Furthermore, the coupling element can have an adjusting element that serves to adjust the coupling element relative to the base, and that can contact the control element in the control position of the adjusting element.

[0034] This allows for easier adjustment of the coupling element, whereby the contact between the control element and the adjustment element in the control position ensures that a movement of the coupling pawl around the pivot axis results in an immediate adjustment of the coupling element.

[0035] Thus, a movement of the coupling pawl into the release position can be accompanied by a movement of the lifting element of the control element, whereby the lifting element can move the coupling element from the coupling position to the open position via the adjusting element.

[0036] As soon as the movement of the coupling pawl into the release position begins, the excavation element is immediately carried along, which in turn causes the coupling element to move into the open position.

[0037] Furthermore, in the initial position of the control element, the excavation element can engage positively in a recess of the coupling pawl.

[0038] This ensures that the coupling pawl is held in the starting position by the lifting element and is not unintentionally moved into the release position.

[0039] The control element can be provided on a clutch disc that is frictionally coupled to a clutch ring.

[0040] The control element is held in position by the frictional connection between the clutch disc and the clutch ring, and a relative movement between the clutch disc and the clutch ring can only take place above a certain limit torque, whereby the limit torque can be adjusted by a corresponding design.

[0041] The clutch disc can be located at least partially inside the clutch ring and pressed along its circumference against the inside of the clutch ring by a spring element.

[0042] By arranging the clutch disc inside the clutch ring, a particularly space-saving design can be achieved.

[0043] Furthermore, the spring element is a particularly cost-effective component. In addition, depending on the design of the spring element, the frictional engagement between the clutch disc and the clutch ring can be adjusted.

[0044] Furthermore, the base and the clutch disc can be rotated relative to each other, with a relative movement between the base and the clutch disc being accompanied by an adjustment of the clutch pawl via the control element.

[0045] The clutch disc is held in place by the clutch ring during relative movement to the base. This allows the clutch pawl, located on the base, to move relative to the clutch disc. Since the actuating element is also located on the clutch disc, it presses against the clutch pawl and adjusts its position.

[0046] The aforementioned problem is also solved by a method for adjusting a clutch pawl of a clutch component from a starting position to a release position, wherein the clutch component comprises a rotatably mounted belt spool on which a belt can be received and to which a drive wheel is assigned, and a gear as well as a base arranged on the gear and a coupling element movably mounted on the base and a pivotably mounted clutch pawl as well as a clutch disc which is frictionally coupled to a clutch ring and which has a projection, with the following steps: a) The gear is driven when a coupling element is in a coupling position, so that the gear is coupled to the base in a rotationally fixed manner; b) the clutch disc is held by the clutch ring, so that a relative movement occurs between the clutch disc and the base; c) the clutch pawl is pivoted from its initial position towards the drive wheel relative to the base via the control element acting on the clutch pawl, while the base continues to rotate relative to the clutch disc; d) the clutch pawl reaches the engagement position, and a positive connection is formed between the clutch pawl and the drive wheel; e) the performance penalty is triggered; f) the clutch pawl is pivoted via the drive wheel from the engaged position to the release position; g) the control element is deformed radially outwards by the pivoting movement of the coupling pawl and the coupling element is carried along by a lifting element provided on the control element; and h) The coupling element is moved into an open position and the coupling between the gear and the base is released, so that they can rotate relative to each other.

[0047] Consequently, the gear is initially moved together with the base, with the gear and base being coupled via the coupling element. Simultaneously, the clutch disc is fixed in place by friction with the clutch ring.

[0048] Due to the relative movement between the clutch disc and the base, the clutch pawl located on the base is moved relative to the actuating element. This results in the clutch pawl being moved around the pivot axis until it reaches the engaged position.

[0049] When the power tensioner is triggered, the drive wheel is abruptly and rapidly rotated. The pawl engaged with the drive wheel is thrown out of its engagement position, deforming the control element, which in turn is in contact with the coupling element. This causes a linear displacement of the coupling element from the engaged position to the release position, thus disengaging the positive connection between the gear and the base.

[0050] The further advantages arising from this can be found in the paragraphs above.

[0051] Furthermore, the coupling element can be held in the open positions after step h).

[0052] This prevents unwanted coupling between the gear and the base.

[0053] The invention is described below with reference to an embodiment illustrated in the accompanying drawings. These show: -Fig. 1 in a perspective view a belt retractor with a coupling component according to the invention; - Fig. 2 the coupling component according to the invention with a coupling pawl in the engagement position; - Fig. 3 the coupling component according to the invention in an exploded view; - Fig. 4 an exploded view of some of the components of the coupling component according to the invention; - Fig. 5a the components from Fig. 4 in the assembled state in a perspective view; - Fig. 5b the representation from Fig. 5a in full cut; - Fig. 6 the components from Fig. 4 in the cross-section; - Fig. 7a the clutch latch in a perspective view; - Fig. 7a the clutch latch in another perspective view; - Fig. 8a a clutch disc in a perspective view; - Fig. 8b a clutch disc in another perspective view; - Fig. 9a the coupling component according to the invention in a front view with a coupling pawl in the starting position; - Fig. 9b the cross-section of the coupling component according to the invention Fig. 9a; - Fig. 10 - 13 the coupling component according to the invention in a front view with a coupling pawl moving from the starting position; - Fig. 14 - 15 the coupling component according to the invention in a front view with a coupling pawl in the engagement position; - Fig. 16a the coupling component according to the invention in a front view with the coupling pawl in a release position; and - Fig. 16b the cross-section of the coupling component according to the invention Fig. 16a.

[0054] Fig. Figure 1 shows a belt retractor 10 with a belt spool 12. A webbing 14 of a motor vehicle seat belt can be wound onto the belt spool 12.

[0055] Furthermore, the belt retractor 10 includes a power tensioner 16, which can rotate the belt spool 12 in a tightening direction. The power tensioner 16 can, for example, be a pyrotechnic power tensioner.

[0056] In addition, a reversible belt tensioner drive 18 is assigned to the belt winder 10, which includes a drive unit 20 and a gearbox 22.

[0057] Fig. Figure 2 shows a coupling component 24, which is provided on the front face of the belt spool 12 and which, together with the gearbox 22, is located on the same side of the belt winder 10.

[0058] The belt spool 12 is associated with a drive wheel 26, which, together with the belt spool 12, can be rotated about the axis of rotation A. The drive wheel 26 has a drive tooth 27.

[0059] Furthermore, a force limiter, for example in the form of a torsion bar, can be provided on the belt spool 12 (not shown in the drawings).

[0060] Furthermore, a gear 28 is provided on the end face of the belt spool 12 facing the belt tensioner drive 18. The gear 28 is part of the transmission 22.

[0061] The gear 28 is ring-shaped and has an inwardly directed recess 30 (see in particular Fig. 3 and Fig. 4).

[0062] In addition, a base 32 is provided, which is at least partially arranged inside the gear 28.

[0063] Furthermore, a plate 33 is provided at the base, which serves to fasten and support the base on the gear 28 (see Fig. 2-6).

[0064] A coupling pawl 34 is arranged at the base 32. The coupling pawl 34 is adjustable at one end by a pivot axis 38 fixed to the base 32.

[0065] The clutch pawl 34 can thus be moved between an engagement position in which the clutch pawl 34 is coupled to the drive wheel 26 (see Fig. 2) and an initial position in which the clutch pawl 34 is not coupled to the drive wheel 26 (see Fig. 9a), can be adjusted.

[0066] It is possible that the clutch pawl 34 is moved into a release position in which it does not engage with the drive wheel 26, which will be discussed in more detail in later explanations.

[0067] The clutch pawl 34 has a curved shape and, in the engaged position, runs along the outer contour of the drive wheel 26 (see Fig. 2).

[0068] Furthermore, the clutch pawl 34 has a tooth 40 which is located on the side of the clutch pawl 34 associated with the drive wheel 26.

[0069] When the clutch pawl 34 is in the engaged position, tooth 40 engages with the drive teeth 27 of the drive wheel 26.

[0070] The tooth 40 and the drive teeth 27 form an ejection geometry 42.

[0071] Furthermore, a coupling element 44 is provided, which is slidably mounted on the base 32 (see in particular ). Fig. 3-6). The coupling element 44 is located between a coupling position (see Fig. 6), in which the gear 28 is coupled to the base 32 via the coupling element 44 in a rotationally fixed manner, and adjustable to a release position (see Fig. 16a), in which the gear 28 and the base 32 are rotatable relative to each other.

[0072] The coupling element 44 is designed in a ring segment shape and has a coupling section 46, which is formed by a radially projecting coupling web 48.

[0073] When the coupling element 44 is in the coupling position, the coupling section 46 of the coupling element 44 projects into the recess 30 of the gear 28, so that a rotationally fixed connection exists between the gear 28 and the base 32.

[0074] The coupling web 48 and the recess 30 form a locking connection 50 in the coupling position of the coupling element 44.

[0075] If the coupling element 44 is in the release position, the coupling section 46 is completely outside the recess 30 of the gear 28.

[0076] In the release position, the locking connection 50 between coupling web 48 and the recess 30 is accordingly released.

[0077] The coupling element 44 is held in the release position by the coupling web 48 being supported on a support surface 52 provided on the gear 28. This blocks movement of the coupling element 44 into the coupling position (see Fig. 16a).

[0078] In addition, a guide geometry 54 is formed between the coupling element 44 and the base 32 for the defined adjustment of the coupling element 44, which serves for the translational guidance of the coupling element 44.

[0079] The guide geometry 54 includes a groove 56, which is provided in the coupling element 44, and a guide web 58 projecting into the groove 56, which is provided at the base 32.

[0080] Furthermore, an adjusting element 60 is provided on the coupling element 44 (see in particular Fig. 2, Fig. 5a and Fig. 5b), which serves for the relative adjustment of the coupling element 44 to the base 32.

[0081] Furthermore, a clutch disc 62 is provided, which is frictionally coupled to a clutch ring 64.

[0082] The clutch disc 62 is arranged inside the clutch ring 64 and is pressed along the circumference onto the inside of the clutch ring 64 by a spring element 66.

[0083] A control element 68 is provided on the clutch disc 62. The control element 68 in turn comprises a lifting element 70.

[0084] The following section will generally discuss the adjustment of the coupling component 24, followed by an explanation of a method for adjusting the coupling pawl 34 of the coupling component 24.

[0085] The control element 68 is relative to the base 32 from a starting position (see Fig. 9) into a steering position (see Fig. 15) rotatable.

[0086] Since the control element 68 is provided on the clutch disc 62, a relative rotation between the base 32 and the clutch disc 62 accordingly results in an adjustment of the clutch pawl 34 via the adjusting element 68.

[0087] The adjustment of the control element 68 also entails an adjustment of the clutch pawl 34 from its initial position to the engaged position. For this purpose, the control element 68 has a lifting element 70 which, when the control element 68 is adjusted from its initial position to the engaged position, acts on the clutch pawl 34 in the area of ​​the recess 41.

[0088] Furthermore, the excavation element 70 serves to engage positively in the recess 41 of the coupling pawl 34 when the control element 68 is in its initial position, so that the coupling pawl 34 is locked in the initial position (see Fig. 10).

[0089] The relative movement of the clutch disc 62 relative to the base 32 is limited by a stop 72 provided at the base. When the clutch disc 62 contacts the stop 72, the adjusting element has reached the adjusted position.

[0090] In the adjustment position, the lifting element 70 of the control element 68 is located between the coupling pawl 34 and the coupling element 44 or its adjusting element 60 (see in particular Fig. 15).

[0091] If the coupling pawl is now moved radially outwards around the pivot axis 38, i.e., into the release position, this is accompanied by an adjustment of the coupling element 44 from the coupling position to the release position. The adjustment of the coupling element 44 via the coupling pawl 34 is thereby carried out indirectly by means of the interposition of the lifting element 70 of the control element 68.

[0092] The following describes the procedure for adjusting the clutch pawl of the clutch component 24 from the initial position to the release position using the Fig. 9a to 16b.

[0093] In the Fig. 9a and Fig. Figure 9b shows the initial state.

[0094] In its initial state, it is accordingly Fig. 9a the coupling pawl 34 in the starting position and is held in this position via the recess 41 by the positive locking with the lifting element 70 of the control element 68.

[0095] Furthermore, the coupling element 44 is in the coupling position, so that the gear 28 is coupled to the base 32 in a rotationally fixed manner.

[0096] In the first step, the gear 28 is driven by the drive unit 20 via the gearbox 22. Since the gear 28 is rotationally fixed to the base 32 via the coupling element 44, the base 32 rotates together with the gear 28.

[0097] The clutch disc 62 is held in position by the clutch ring 64, resulting in a relative movement between the clutch disc 62 and the base 32.

[0098] This also moves the clutch pawl 34 relative to the clutch disc 62, so that the actuating element 68 moves within the recess 41 and the positive engagement between the actuating element 68 and the clutch pawl 34 is released (see Fig. 10).

[0099] A further relative rotation causes the control element 68 to act on the clutch pawl 34 in the area of ​​the recess 41 and the clutch pawl 34 to pivot about the pivot axis 38 from the initial position towards the drive wheel 26 (see Fig. 11).

[0100] As the relative rotation between base 32 and clutch disc 62 progresses, the clutch pawl 34 is moved further and further around the pivot axis 38 towards the drive wheel 26 (see Fig. 12 and Fig. 13).

[0101] This continues until the clutch pawl 34 reaches the engagement position and a positive connection exists between the clutch pawl 34 and the drive wheel 26 (see Fig. 14). The positive locking is formed by the tooth 40 engaging in the drive teeth 27.

[0102] As the gear 28 rotates, the clutch disc 62 comes into contact with the stop 72, so that it is actively rotated by the gear 28.

[0103] This causes the frictional connection between the clutch disc 62 and the clutch ring 64 to break down, resulting in a sliding friction state between the components.

[0104] Accordingly, the clutch disc 62 rotates at the same speed as the gear 28 while the clutch ring 64 is stationary (see Fig. 15).

[0105] In the Fig. In the state shown in 15, the reversible belt tensioner drive 18 can be activated, so that the gear 28 is driven via the drive unit 20 and the gearbox 22 to set the drive wheel 26 in rotation.

[0106] This causes the belt spool 12 to rotate in the taut direction, thereby winding up the webbing 14.

[0107] If the power tensioner 16 is triggered, the belt spool 12 is disconnected from the reversible belt tensioner drive 18, as explained below. The power tensioner 16 is activated in a triggering scenario. The power tensioner 16 ensures that the belt 14 is wound onto the belt spool 12 in a very short time.

[0108] As a result of the activated tensioner 16, the drive wheel 26 begins to rotate relative to the clutch pawl 34. The rotational movement occurs in the tensioning direction and thus counterclockwise.

[0109] The relative movement results in the clutch pawl 34 being moved from the clutch position by a pivoting movement about the pivot axis 38 towards the release position by the ejection geometry 42 formed by the drive tooth 27 and the tooth 40.

[0110] As a result, the control element 68 is deformed radially outwards, which in turn causes the coupling element 44 to be carried along by the extraction element 70 provided on the control element 68 via the coupling web 48 and to move translationally along the guide geometry 54 (see Fig. 16a and Fig. 16b).

[0111] This results in the coupling element being moved from the coupling position to the release position. Consequently, the gear 28 is no longer rotationally fixed to the base 32, allowing them to rotate relative to each other.

[0112] Therefore, when the coupling element 44 is in the release position, no torque can be transmitted between the gear 28 and the base 32, even if the clutch pawl 34 were in the engaged position. Accordingly, the drive wheel 26 can move independently of the drive unit 20.

[0113] The coupling element 44 will be held in the release position by the coupling web 48 resting on the support surface 52.

Claims

[1] Coupling component for connecting a reversible belt tensioner drive (18) of a belt retractor (10) to a belt spool (12) of the belt retractor (10), with a gear (28) that is assigned to the belt tensioner drive (18), a base (32) on which a clutch pawl (34) is arranged, which is adjustable between a starting position in which it does not engage with a drive wheel (26) associated with the belt spool (12) and a clutch position in which it can engage with the drive wheel (26), a coupling element (44) which is displaceable between a coupling position in which the gear (28) and the base (32) are rotationally fixed to each other, and a release position in which the gear (28) and the base (32) are rotatable relative to each other, and a control element (68) which can be rotated relative to the base (32) from a starting position to a control position in order to adjust the clutch pawl (34) from the starting position to the clutch position, wherein the control element (68) has a lifting element (70) which is located between the coupling pawl (34) and the coupling element (44) when the control element (68) is in the control position, such that a movement of the coupling pawl (34) in a radial direction moves the coupling element (44) from the coupling position to the release position. [2] Coupling component according to claim 1, characterized by , that the coupling element (44) is designed in a ring segment shape and has a coupling section (46) which is formed by a radially projecting coupling web (48). [3] Coupling component according to claim 2, characterized by, that the gear (28) has a recess (30), wherein the coupling section (46) of the coupling element (44) projects into the recess (30) when the coupling element (44) is in the coupling position and is completely outside the recess (30) when the coupling element (44) is in the release position. [4] Coupling component according to claim 3, characterized by , that the coupling bridge (48) forms a locking connection (50) with the recess (30) when the coupling element (44) is in the coupling position. [5] Coupling component according to claim 3 or 4, characterized by , that the coupling bridge (48) is supported on a support surface (52) provided on the gear (28) when the coupling element (44) is in the release position, so that movement of the coupling element (44) into the coupling position is blocked. [6] Coupling component according to any of the preceding claims, characterized by, that the gear (28) is ring-shaped and the base (32) is at least partially located inside the gear (28). [7] Coupling component according to any of the preceding claims, characterized by , that between the coupling element (44) and the base (32) a guide geometry (54) is formed for the translational guidance of the coupling element (44), which is formed by a groove (56) and by a guide web (58) projecting into the groove (56). [8] Coupling component according to any of the preceding claims, characterized by , that an adjustment of the coupling element (44) is carried out directly or indirectly by a movement of the coupling pawl (34) about the pivot axis (38). [9] Coupling component according to any of the preceding claims, characterized by, that the coupling element (44) has an adjusting element (60) which serves to adjust the coupling element (44) relative to the base (32), and that the control element (68) contacts the adjusting element (60) in the control position. [10] Coupling component according to claim 9, characterized by , that a movement of the coupling pawl (34) into a release position is accompanied by a movement of the lifting element (70) of the control element (68), wherein the lifting element (70) moves the coupling element (44) via the adjusting element (60) from the coupling position to the open position. [11] Coupling component according to any of the preceding claims, characterized by , that the excavation element (70) engages positively in a recess (41) of the coupling pawl (34) in the initial position of the control element (68). [12] Coupling component according to any of the preceding claims, characterized by, that the control element (68) is provided on a clutch disc (62) which is frictionally coupled to a clutch ring (64). [13] Coupling component according to claim 12, characterized by , that the clutch disc (62) is arranged at least partially inside a clutch ring (64) and is pressed along the circumference by a spring element (66) onto the inside of the clutch ring (64). [14] Coupling component according to claim 12 or 13, characterized by , that the base (32) and the clutch disc (62) are rotatable relative to each other and that a relative movement between the base (32) and the clutch disc (62) is accompanied by an adjustment of the clutch pawl (34) via the control element (68). [15] Method for adjusting a clutch pawl (34) of a clutch component (24) from a starting position to a release position, wherein the clutch component (24) comprises a rotatably mounted belt spool (12) on which a belt (14) can be received and to which a drive wheel (26) is assigned, and a gear (28) as well as a base (32) arranged on the gear (28) and a coupling element (44) movably mounted on the base (32) and a pivotably mounted clutch pawl (34) as well as a clutch disc (62) which is frictionally coupled to a clutch ring (64) and which has a projection, comprising the following steps: a) The gear (28) is driven by a coupling element (44) in a coupling position, so that the gear (28) is coupled to the base (32) in a rotationally fixed manner; b) the clutch disc (62) is held by the clutch ring (64), so that a relative movement between the clutch disc (62) and the base (32) results; c) the clutch pawl (34) is pivoted from the initial position towards the drive wheel (26) relative to the base (32) via the control element (68) acting on the clutch pawl (34), whereby the base (32) continues to rotate relative to the clutch disc (62); d) the clutch pawl (34) reaches the engagement position and a positive connection is formed between the clutch pawl (34) and the drive wheel (26); e) a performance enhancer (16) is triggered; f) the clutch pawl (34) is pivoted from the engagement position to the release position via the drive wheel (26); g) the control element (68) is deformed radially outwards by the pivoting movement of the coupling pawl (34) and the coupling element (44) is carried along by a lifting element (70) provided on the control element (68); and h) the coupling element (44) is moved into an open position and the coupling between the gear (28) and the base (32) is released so that they can rotate relative to each other. [16] Method according to claim 15, characterized by , that the coupling element (44) is held in the open position after step h).

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