Clamping construction for attaching a rotary actuation device to a bicycle and rotary actuation device

Abstract

Clamping structure (1, 20, 30, 40, 50, 60) for attaching a rotary actuating device (100) to a bicycle, wherein the clamping structure (1, 20, 30, 40, 50, 60): a clamping section (2) having a clamping axis (X) and designed to be clamped to the bicycle, and an operating component support section (3) configured to support an operating component (101) of a bicycle rotary operating device (100), characterized in that between the clamping section (2) and the actuating component bearing section (3) a stiffness-reduced section (4, 21, 41, 51) is formed in the axial direction parallel to the clamping axis (X).

Description

[0001] The present invention relates to a clamping structure for attaching a rotary control device to a bicycle and to a rotary control device for a bicycle with an inventive clamping structure. More specifically, such clamping structures are used, for example, for attaching a bicycle control device for gear changing to a bicycle handlebar.

[0002] Traditionally, such clamping structures comprise a tubular component that is clamped to the bicycle part. The rotary actuating device is rotatably mounted on a corresponding section of the clamping structure so that it can be rotated relative to the bicycle part when the clamping structure is properly attached. However, due to the elastic deformation of the clamping structure, clamping the clamping structure changes the diameter of the clamping structure. In other words, the shape of the clamping structure is different in the unclamped state than in the clamped state. Therefore, the rotary actuating device cannot be easily arranged on the respective section of the clamping structure when the clamping structure is attached to the bicycle part.

[0003] From DE 94 02 168 U1 a twist grip brake device is known with a housing that can be attached to the handlebar tube to hold a grip sleeve that can be rotated around the handlebar tube.

[0004] From DE 196 45 078 A1 a bicycle rotary actuating device for actuating a derailleur is known, which comprises a clamping construction by means of which a rotatable actuating element can be positioned on a handlebar.

[0005] From US 2008 / 0 298 886 A1 a clamping construction for a bicycle seat post for connecting two tube pieces with different diameters is known.

[0006] Accordingly, an object of the present invention is to provide a clamping structure for attaching a rotary actuating device to a bicycle, which enables improved rotatable mounting of the rotary actuating device. A further object of the present invention is to provide a corresponding bicycle rotary actuating device comprising an inventive clamping structure.

[0007] The object is achieved with a clamping construction according to claim 1 and a clamping construction according to claim 7. The object is further achieved by a bicycle rotary actuating device according to claim 23.

[0008] The inventive clamping structure comprises a clamping portion having a clamping axis and configured to be clamped to the bicycle, and an operating component bearing portion configured to support an operating component of a bicycle rotary operating device. A reduced-rigidity portion is formed between the clamping portion and the operating component bearing portion in an axial direction parallel to the clamping axis. The reduced-rigidity portion elastically deforms during clamping, so that the clamping force exerted on the clamping portion for fastening the clamping structure to the bicycle is not transferred to the operating component bearing portion.

[0009] Therefore, with the inventive clamping structure, a diameter change can be effected at the clamping portion for attaching the clamping structure to a bicycle by means of clamps. This diameter change is not transmitted to the actuating component bearing portion (it is prevented from being transmitted) because the reduced-stiffness portion prevents clamping force transmission. Thus, the actuating component bearing portion retains its shape, allowing the bicycle rotary actuating device to be properly supported on it, both when mounted on the bicycle and when not mounted on the bicycle.

[0010] The stiffness-reduced section can be formed such that it runs at least along part of the circumference of the clamping structure. Furthermore, the stiffness-reduced section can be a section formed between the clamping section and the actuating component bearing section and made of a different material than the respective materials of the clamping section and the actuating component bearing section. For example, the material of the stiffness-reduced section can be a relatively softer material (e.g., an aluminum alloy or a plastic material), and the material of the clamping section and / or the actuating component bearing section can be a harder material (e.g., steel or titanium, or an aluminum alloy if the stiffness-reduced section is made of plastic, for example). The stiffness-reduced section can be attached to the clamping section and / or the actuating component bearing section by suitable means, e.g.,by adhesive, welding, deformation, gluing, or a fastener (e.g., a screw). Furthermore, the reduced-stiffness section can be vulcanized.

[0011] Preferably, a slot is formed between the clamping portion and the actuating component bearing portion in the axial direction parallel to the clamping axis. The slot may extend along all or only part of the circumference of the reduced-stiffness portion. More specifically, the slot is formed as an elongated opening extending through the clamping structure. Of course, the reduced-stiffness portion may comprise more than one slot. With this slot, the stiffness of the reduced-stiffness portion can be adjusted to the desired degree. Furthermore, the overall weight of the clamping structure is reduced.

[0012] Preferably, the reduced-stiffness section comprises a slot extending in the circumferential direction relative to the clamping axis. This slot allows the stiffness of the reduced-stiffness section to be adjusted to the desired degree. Furthermore, the overall weight of the clamping structure can be reduced.

[0013] Preferably, the stiffness-reduced section has a groove extending circumferentially relative to the clamping axis. The groove may extend along the entire circumference or a portion of the stiffness-reduced section. More specifically, the groove may be provided as an elongated recess with a bottom surface. Of course, the stiffness-reduced section may comprise more than one groove. This groove allows the stiffness of the stiffness-reduced section to be adjusted to the desired degree. Furthermore, the overall weight of the clamping structure is reduced.

[0014] Preferably, the reduced-stiffness section has either at least one through-hole, at least one blind hole, or at least one through-hole and at least one blind hole. The holes can be provided alternately or randomly so that the desired degree of stiffness for the reduced-stiffness section can be achieved. Furthermore, these holes reduce the overall weight of the clamping structure.

[0015] Preferably, the reduced-stiffness portion comprises a boundary disposed between the clamping portion having a first stiffness and the actuating component support portion having a second stiffness different from the first stiffness. Specifically, the first stiffness is preferably lower than the second stiffness. This reliably prevents the clamping force from being transmitted from the clamping portion to the actuating component support portion.

[0016] As described above, the clamping structure comprises a clamping portion having a clamping axis and configured to be clamped to the bicycle, and an operating component bearing portion configured to support an operating component of a bicycle rotary operating device. Alternatively, the object is achieved by forming a slot between the clamping portion and the operating component bearing portion in the axial direction parallel to the clamping axis. The inventive clamping structure thus has two portions separated in the axial direction by the slot. The slot prevents a change in the diameter of the clamping portion from being transmitted to the operating component bearing portion when the clamping structure is attached to the bicycle.When the clamping structure is attached to a bicycle part such as a bicycle handlebar, the clamping axis coincides with the central axis of the bicycle handlebar, so that the plane defined by the slot intersects the central axis of the bicycle handlebar. In other words, the plane defined by the slot may be perpendicular to the central axis of the bicycle handlebar. A slot itself is an elongated opening that has a certain dimension and runs along a corresponding element. Here, the slot runs along the circumferential direction of the clamping structure and extends through the clamping structure.

[0017] With the alternative inventive clamping structure, a diameter change can be effected at the clamping portion for attaching the clamping structure to a bicycle by means of clamps. The diameter change is not transmitted to the operating component support portion due to the slot (it is prevented from being transmitted). Therefore, the operating component support portion retains its shape, allowing the bicycle rotary operating device to be properly supported thereon, both when mounted on the bicycle and when not mounted on the bicycle. Thus, the operating component of the bicycle rotary operating device can be smoothly rotated along the circumference of the operating component support portion.

[0018] Preferably, the clamping portion comprises an annular member having a first end and a second end, wherein a first projection is disposed at the first end of the annular member and a second projection is disposed at the second end of the annular member. To secure the clamping structure to the bicycle, the distance between the first projection and the second projection is reduced in the circumferential direction. This facilitates the attachment of the clamping structure.

[0019] Preferably, the first projection extends radially outward from the first end of the annular part, and the second projection extends radially outward from the second end of the annular part. Thus, the projections project from the annular part in such a way that the distance between the projections can be easily reduced for attaching the clamping structure to the bicycle.

[0020] Preferably, the first projection has a first opening, and the second projection has a second opening, wherein the first opening and the second opening are configured to receive a fastening means. Thus, the distance in the circumferential direction between the first projection and the second projection can be easily reduced with the aid of the fastening means.

[0021] Preferably, the clamp structure further comprises a connecting portion configured to connect the clamp portion and the operating component support portion. Thus, the connecting portion is provided between the clamp portion and the operating component support portion and extends along the circumferential direction of the clamp axis. Consequently, the connecting portion is provided only on a part of the circumference, preventing the diameter change of the clamp portion from being transmitted to the operating component support portion when the clamp structure is attached to the bicycle. Of course, the connecting portion may also be provided in the form of two or more portions.

[0022] Preferably, the slot runs in the circumferential direction relative to the clamping axis and has a first circumferential length. Consequently, the slot has a circumferential length that expediently separates the clamping section from the actuating component bearing section. Preferably, the slot has a circumferential length of 50% to 95% of the total circumference; in particular, the slot preferably has a circumferential length of 75% to 85% of the total circumference. Most preferably, the slot has a circumferential length of approximately 80% of the total circumference. This ensures that the clamping structure can be firmly attached to the bicycle without the change in diameter being transmitted to the actuating component bearing section. Accordingly, the clamping forces exerted on the clamping section are prevented from being transmitted to the actuating component bearing section.

[0023] Preferably, the connecting portion has a second circumferential length, wherein the first circumferential length is greater than the second circumferential length. Thus, the slot formed between the clamping portion and the actuating component bearing portion occupies the largest part of the circumference, whereas the connecting portion occupies the smaller part of the circumference. This not only ensures a secure and firm attachment of the clamping structure to the bicycle, but also reduces the overall weight of the clamping structure.

[0024] Preferably, the connecting portion is offset in the circumferential direction with respect to the first and second lugs. Thus, viewed from the axial direction, the lugs are provided at a different position in the circumferential direction compared to the connecting portion. In other words, the lugs are arranged adjacent to the slot. Consequently, the clamping forces exerted on the lugs for attaching the clamping structure to the bicycle are prevented from being transmitted to the connecting portion and thus to the actuating component bearing portion.

[0025] Preferably, the clamping portion has an additional slot. More specifically, the additional slot preferably extends circumferentially. This reduces the overall weight of the clamping structure.

[0026] Preferably, the additional slot has a third circumferential length that is equal to or less than the first circumferential length. The fact that the third circumferential length of the additional slot is at most equal to the first circumferential length ensures decoupling of the clamping portion and the actuating component bearing portion, which in turn ensures a reduction in weight and secure attachment of the clamping structure to the bicycle.

[0027] Preferably, the clamping portion has a first axial length, and the actuating component bearing portion has a second axial length that is greater than the first axial length. This enables a secure and rigid attachment of the clamping structure to the bicycle.

[0028] Preferably, the clamping portion and the actuating component bearing portion are integrally formed as a one-piece unitary component. More specifically, the entire clamping structure is preferably formed as a one-piece unitary component. Preferably, the clamping structure is made of metal, e.g., an aluminum alloy, provided, for example, as a stamped and bent metal plate. Alternatively, the clamping structure is made of a non-metallic material, e.g., a suitable synthetic material such as PET, PE, or PP.

[0029] Preferably, the operating component bearing portion is configured to support a bearing unit arranged radially relative to the clamping axis between the operating component bearing portion and the operating component of the bicycle rotary operating device. The bearing unit may be any suitable bearing unit, e.g., a plain bearing unit, a roller bearing unit, a ball bearing unit, or a bushing. Of course, the operating component bearing portion may also be configured to directly support the operating component of the bicycle rotary operating device.

[0030] Preferably, the actuating component support portion is an annular member having a first end provided with a first fastening structure and a second end provided with a second fastening structure, the first fastening structure engaging the second fastening structure. Preferably, the first fastening structure and the second fastening structure form a dovetail connection. Thus, the actuating component support portion and the clamping portion can be easily manufactured as a single, integral component without the need to connect any additional elements. This greatly reduces manufacturing costs. Of course, other suitable connections may also be used.

[0031] Furthermore, the invention is directed to a bicycle rotary operating device having an inventive clamping structure as specified above. Preferably, the bicycle rotary operating device comprises an operating member and a bearing unit mounted on the operating member support portion, which bearing unit is configured to rotatably support the operating member on the operating member support portion. The bicycle rotary operating device may, for example, be a bicycle control device for changing gears, which is attached to the bicycle handlebar. The bearing unit may be any suitable bearing unit, e.g., a ball bearing unit, a roller bearing unit, or a plain bearing unit.

[0032] Preferably, the actuating component comprises an annular base section with a rotational center axis and an actuating section for the user, which extends radially outward from the annular base section relative to the rotational center axis. This enables convenient and smooth rotary actuation of the actuating section for the user. The actuating section for the user can be a lever for triggering a gear change. The gear change can be carried out both electronically and mechanically.

[0033] Embodiments of the invention will now be described by way of example with reference to the accompanying drawings, in which: Fig. 1 is a first perspective view of a bicycle clamping structure according to a first embodiment; Fig. Fig. 2 is a second perspective view of the bicycle clamping structure according to the first embodiment; Fig. 3 is a third perspective view of the bicycle clamping structure according to the first embodiment; Fig. 4 is a front view of the bicycle clamp structure according to the first embodiment; Fig. 5 is a plan view of the bicycle clamp structure according to the first embodiment; Fig. 6 is a first side view of the bicycle clamping structure according to the first embodiment; Fig. Fig. 7 is a second side view of the bicycle clamping structure according to the first embodiment; Fig. 8 is a perspective view of the bicycle clamp structure according to the first embodiment, in which a fastening means is attached to the first and second lugs; Fig. 9 is a perspective view of a bicycle clamping structure according to a second embodiment; Fig. 10 is a perspective view of a bicycle clamping structure according to a third embodiment; Fig. 11 is a perspective view of a bicycle clamping structure according to a fourth embodiment; Fig. 12 is a perspective view of a bicycle clamping structure according to a fifth embodiment; Fig. 13 is a perspective view of a bicycle clamping structure according to a sixth embodiment; Fig. 14 is a perspective view of an assembly comprising the bicycle clamp structure according to the first embodiment supporting an operating member of a bicycle rotary operating device, which is partially cut away; and Fig. 15 is a perspective view of a bicycle rotary operating device including the clamping structure according to the first embodiment, in which the housing is partially cut away.

[0034] In Fig. 1 to Fig. 7 shows a bicycle clamping structure 1 according to a first embodiment. The clamping structure 1 has a clamping portion 2 and an operating member support portion 3. The operating member support portion 3 is configured to support an operating member 101 of a bicycle rotary operating device 100, as shown in FIGS. Fig. 14 and Fig. 15 and described in detail below.

[0035] The clamping structure 1 according to the first embodiment is essentially a tubular component that is to be clamped to a bicycle part, e.g., a bicycle handlebar. For this purpose, the clamping section 2 has a clamping axis X that should coincide with the center axis of the clamping structure 1 when the clamping structure 1 is not clamped to the bicycle part. When clamped to the bicycle part, the clamping axis X approximately coincides with the center axis of the bicycle part. The clamping section 2 and the actuating component bearing section 3 are separated by a slot 4 formed between the two sections 2, 3. In this embodiment, the slot 4 is formed as an elongated opening that runs through the clamping structure. As can be seen, for example, from Fig. 3, the slot 4 extends in the circumferential direction D relative to the clamping axis X and has a first circumferential length L1 of approximately 80% of the total circumference of the clamping structure 1. The slot 4 of the first embodiment is an example of a stiffness-reduced section of the present invention.

[0036] The clamping section 2 comprises an annular component 5 having a first end 6 and a second end 7. A first projection 8 is arranged at the first end 6 and extends radially outward from the first end 6. A second projection 9 is arranged at the second end 7 and extends radially outward from the second end 7. As can be seen from Fig. 4, the first projection 8 and the second projection 9 extend practically parallel to each other, starting from the annular component 5, so that a gap S is formed between the first projection 8 and the second projection 9. The first projection 8 has a first opening 10, and the second projection 9 has a second opening 11. The first and second openings 10, 11 are designed to receive a fastening means 12 for clamping the clamping structure 1 to the bicycle part, see Fig. 8. In the Fig. In the embodiment shown in Figure 8, the fastener 12 passes through the first opening 10 and the second opening 11 and is screwed into a nut component 19. The nut component 19 is arranged adjacent to the second projection 9, and the nut has an outer contour that engages with the outer surface of the second end 7 of the annular component 5 of the clamping portion 2. Thus, when the fastener 12 is rotated for clamping purposes, rotation of the nut component 19 together with the fastener 12 is prevented. Of course, the first opening 10 or the second opening 11 can also be provided with an internal thread for receiving the fastener 12. In this case, the nut component 19 becomes superfluous.

[0037] A connecting portion 13 is formed between the clamping portion 2 and the actuating component bearing portion 3. The connecting portion has a second circumferential length L2, which is smaller than the first circumferential length L1. In this particular embodiment, the second circumferential length L2 is approximately 20% of the total circumference of the clamping structure 1. The connecting portion 13 is arranged offset in the circumferential direction D with respect to the first projection 8 and second projection 9, as shown, for example, in Fig. 3. As such, the first lug 8 and the second lug 9 are positioned adjacent to the slot 4 in the axial direction, i.e., along the clamping axis X.

[0038] The clamping section 2 has an additional slot 14 extending in the circumferential direction D. The additional slot has a third circumferential length L3, which is smaller than the first circumferential length L1, but greater than the second circumferential length L2. The third circumferential length L3 is more than 50% of the total circumference of the clamping structure 1. As can be seen from Fig. As can be seen from Figure 6, the additional slot 14 is provided in the center of the clamping section 2. With the additional slot 14, the weight of the clamping section 2 can be reduced and the axial length of the clamping section 2 can be increased.

[0039] The clamping section 2 has a first axial length AL1 which is smaller than a second axial length AL2 of the actuating component bearing section 3, cf. Fig. 7. More specifically, the first axial length AL1 is preferably between 50% and 90%, and most preferably between 75% and 85%, of the second axial length AL2. This allows for optimal weight savings while simultaneously providing sufficient surface area for clamping the clamping structure 1 to the bicycle part.

[0040] The clamping structure 1 according to the first embodiment is a one-piece unitary component with a certain flexibility and is made, for example, from a stamped metal plate or molded metal plate. However, the material for the clamping structure is not limited to metal, and it may also be made of a plastic material. The plate is then bent into the shape of the clamping structure 1. For a smooth and almost perfectly round operating component support portion 3, the operating component support portion has a first end 15 provided with a first fastening structure 17 and a second end 16 provided with a second fastening structure 18. The first fastening structure 17 and the second fastening structure 18 form a dovetail joint. However, the shape of the first end 15 and the second end 16 is not limited to a dovetail joint.They may be flat edges. Furthermore, the clamping structure 1 may be shaped to form an annular shape without a first and a second end.

[0041] To clamp the clamping structure 1 to a bicycle part, e.g., a bicycle handlebar, the clamping structure 1 is first placed on the bicycle part. Naturally, the inner diameter of the clamping structure 1 is slightly larger than the diameter of the bicycle part to which the clamping structure 1 is to be attached. Once the clamping structure 1 is in the correct axial position relative to the bicycle part, the fastening means 12 is rotated so that the first projection 8 and the second projection 9 move toward each other, thereby narrowing the gap S. The inner diameter of the clamping portion 2 thus elastically decreases such that a clamping force is generated, which clamps the clamping structure 1 to the bicycle part. If the slot 4 is formed between the clamping portion 2 and the actuating component bearing portion 3, the clamping force is prevented from being transmitted via the connecting portion 13.In other words, the clamping force acts practically only on the clamping section 2, whereas the actuating component bearing section 3 is independent of any deformation of the clamping section 2, so that the change in diameter of the clamping section 2 has no (or only a slight) effect on the actuating component bearing section 3. Therefore, the actuating component bearing section 3 retains its round shape, even when the clamping section 2 is clamped to the bicycle part by means of the fastening means 12. Consequently, the actuating component 101 can be smoothly rotated along the circumference of the actuating component bearing section 3 via a bushing or bearing unit arranged between the actuating component 101 and the actuating component bearing section. However, the bushing or bearing unit can also be omitted as needed and / or desired.

[0042] When the fastener 12 is unscrewed to remove the clamping structure 1 from the bicycle part, the gap S between the first projection 8 and the second projection 9 increases again, as the annular component 5, the first projection 8, and the second projection 9 of the clamping section 2 elastically return to their original pre-clamping shape. Thus, the clamping structure 1 can be reused.

[0043] The Fig. 9 to 13 show the second to sixth embodiments of a clamping structure 20, 30, 40, 50, 60. All of these embodiments have in common that a reduced-rigidity section 21 is formed between the clamping section 2 and the actuating component bearing section 3. Due to the similarity to the first embodiment, only the differences are described below.

[0044] In Fig. 9 shows a second embodiment of a clamping structure 20, wherein the stiffness-reduced section is shown in dashed lines. The stiffness-reduced section 21 runs in the circumferential direction relative to the clamping axis. In the second embodiment, the stiffness-reduced section 21 runs along the entire circumference of the clamping structure 20. However, the stiffness-reduced section 21 can also be designed such that it runs along at least part of the circumference of the clamping structure 20. In this embodiment, the stiffness-reduced section 21 can be a layer formed between the actuating component bearing section 3 and the clamping section 2 and can be made of a different material than the material of the actuating component bearing section 3 and the clamping section 2. For example, the material of the stiffness-reduced section 21 can be a softer material (e.g.an aluminum alloy, plastic), and the materials of the actuating component bearing section 3 and the clamping section 2 can be made of a harder material (e.g., steel). The actuating component bearing section 3, the clamping section 2, and the reduced-rigidity section 21 can be formed as a one-piece component, for example, using an adhesive, by welding, deformation, or with a fastener (such as a screw). When the clamping structure 20 is attached to the bicycle part, the clamping force exerted on the clamping section 2 is not (or only slightly) transferred to the actuating component bearing section 3 because the reduced-rigidity section 21 deforms accordingly. Therefore, the actuating component bearing section 3 remains almost round, so that the bearing unit can be optimally supported thereon.

[0045] In Fig. 10, a third embodiment of a clamping structure 30 is shown. The third embodiment of the clamping structure 30 is practically a combination of the first embodiment and the second embodiment. As such, the third embodiment is almost identical to the second embodiment in Fig. 9, except for an additional slot 31 running in the circumferential direction relative to the clamping axis. The clamping structure 30 also includes a reduced-stiffness section 21, which is identical to that described with reference to the second embodiment. The additional slot 31 allows the adjustment of the optimal degree of stiffness so that the clamping section 2 and the actuating component bearing section 3 are independent of each other. Consequently, clamping forces exerted on the clamping section 2 are not (or only slightly) transferred to the actuating component bearing section 3. Furthermore, the additional slot 31 further saves weight.

[0046] In Fig. 11 shows a fourth embodiment of a clamping structure 40. The fourth embodiment of the clamping structure 40 is as in Fig. 11 and includes an additional groove 41 as a stiffness-reduced section. The groove 41 is provided between the actuating component bearing section 3 and the clamping section 2 and runs in the circumferential direction relative to the clamping axis. The groove 41 is designed as an elongated recess and does not traverse the clamping structure 40. The groove 41 enables the adjustment of the optimal degree of stiffness such that the clamping section 2 and the actuating component bearing section 3 are independent of each other. Thus, clamping forces exerted on the clamping section 2 are not (or only slightly) transferred to the actuating component bearing section 3. Furthermore, the additional slot 41 further saves weight.

[0047] In Fig. 12 shows a fifth embodiment of a clamping structure 50. The fifth embodiment of the clamping structure 50 is as in Fig. 12 and includes through-holes 51 as a stiffness-reduced section. The through-holes 51 enable the adjustment of the optimal degree of stiffness so that the clamping section 2 and the actuating component bearing section 3 are independent of one another. Thus, clamping forces exerted on the clamping section 2 are not (or only slightly) transferred to the actuating component bearing section 3. Furthermore, the through-holes 51 further save weight. Of course, only one through-hole 51 can be provided. Furthermore, any number of through-holes 51 can be provided, for example alternating. Instead of the through-hole, the stiffness-reduced section can comprise at least one blind hole that does not traverse the clamping structure. Of course, the stiffness-reduced section can comprise a combination of the through-hole(s) and the blind hole(s).

[0048] In Fig. 13 shows a sixth embodiment of a clamping structure 60. The sixth embodiment of the clamping structure 60 is as in Fig. 13 and comprises a boundary 61 between the clamping section 2 with a first stiffness and the actuating component bearing section 3 with a second stiffness. The boundary 61 separates the two sections as a stiffness-reduced section. Of course, the entire clamping section can have the first stiffness and the entire actuating component bearing section can have the second stiffness. The first stiffness is lower than the second stiffness, so that the clamping forces exerted on the clamping structure are not (or only slightly) transferred to the actuating component bearing section. In this embodiment, the clamping section 2 is made of a first material with the first stiffness, which is different from a second material of the actuating component bearing section 3 with the second stiffness. For example, the first material of the clamping section can be a softer material (e.g.an aluminum alloy, plastic), and the second material of the actuating component bearing portion 3 can be a harder material (e.g., steel). The clamping portion 2 and the actuating component bearing portion 3 can be formed as a one-piece component, for example, using an adhesive, by welding, deformation, or with a fastening means (such as a screw).

[0049] Of course, the various features of the first to sixth embodiments can also be combined, for example, in that the stiffness-reduced section in the second embodiment comprises a groove and a blind bore.

[0050] The Fig. 14 and Fig. 15 show a bicycle rotary operating device 100 comprising a clamp structure 1 according to the first embodiment. Fig. 14 is a cutaway view of Fig. 15, whereas Fig. 15 is shown without part of the housing.

[0051] Of course, a clamping structure 20, 30, 40, 50, 60 according to the second to sixth embodiments can also be used. The bicycle rotary operating device 100 is a bicycle control device for changing gears and comprises an operating component 101. The operating component 101 is rotatably mounted on the operating component bearing section 3 via a bearing unit 102. In the embodiment shown, the bearing unit is a plain bearing unit 102, which is attached to an annular base section 103 of the operating component 101. The operating component 101 further comprises operating sections for the user 104, which extend radially outward from the annular base section 103 and, in the embodiment shown, effect a gear change. The gear change can be effected in a conventional manner, for example, via a Bowden cable, or electronically.In other words, the bicycle rotary operating device may comprise a mechanical cable device or an electrical switch configured to transmit an actuation signal for controlling an electrical bicycle component. The annular base portion 104 has a rotational center axis that coincides with the center axis of the clamping structure 1 and the clamping axis when the clamping structure 1 is attached to the bicycle part.

[0052] The term "comprising" and its derivatives, as used herein, are intended to be open-ended terms that specify the presence of the recited features, elements, components, groups, integers, and / or steps. This concept also applies to words of similar meaning, such as the terms "comprising," "containing," and their derivatives.

[0053] The terms of degree such as "substantially" as used herein are to be understood as a reasonable degree of deviation from the modified expression so that the final result is not significantly changed (e.g., manufacturing tolerances).

[0054] Although specific embodiments of the clamping structure have been described in detail, the disclosed combinations are intended to be illustrative and not restrictive. The features of the various embodiments described above, as well as modifications thereof, may be combined in various ways without departing from the scope of the disclosure. REFERENCE SYMBOL 1 clamping construction 2 clamping section 3 Actuating component bearing section 4 slots 5 ring-shaped part 6 first end 7 second end 8 first approach 9 second approach 10 first opening 11 second opening 12 fasteners 13 connecting section 14 additional slot 15 first end 16 second end 17 first fastening structure 18 second fastening structure 19 Screw nut component 20 clamping construction 21 Stiffness-reduced section 30 clamp construction 31 slot 40 clamping construction 41 groove 50 clamp construction 51 through hole 60 clamping construction 61 Limitation 100 rotary operating device 101 Actuating component 102 storage unit 103 annular base section 104 Operating section for the user AL1 first axial length AL2 second axial length D circumferential direction L1 first circumference length L2 second circumference length L3 third circumferential length S gap X clamping axis

Claims

[1] Clamping structure (1, 20, 30, 40, 50, 60) for attaching a rotary actuating device (100) to a bicycle, the clamping structure (1, 20, 30, 40, 50, 60): a clamping section (2) having a clamping axis (X) and designed to be clamped to the bicycle, and an operating component support section (3) configured to support an operating component (101) of a bicycle rotary operating device (100), characterized by , that between the clamping section (2) and the actuating component bearing section (3) a stiffness-reduced section (4, 21, 41, 51) is formed in the axial direction parallel to the clamping axis (X). [2] Clamping structure (1, 30) according to one of the preceding claims, wherein a slot (4, 31) is formed between the clamping portion (2) and the actuating component bearing portion (3) in the axial direction parallel to the clamping axis (X). [3] Clamping construction (40) according to one of the preceding claims, wherein the stiffness-reduced portion (21) comprises a groove (41) extending in the circumferential direction (D) relative to the clamping axis (X). [4] Clamping construction (50) according to one of the preceding claims, wherein the stiffness-reduced section (21) comprises either at least one through-bore (51), at least one blind bore (52), or at least one through-bore (51) and at least one blind bore (52). [5] Clamping structure (60) according to one of the preceding claims, wherein the stiffness-reduced portion comprises a boundary (61) arranged between the clamping portion (2) having a first stiffness and the actuating member bearing portion (3) having a second stiffness different from the first stiffness. [6] The clamping structure of claim 5, wherein the first stiffness is less than the second stiffness. [7] Clamping structure (1) for attaching a rotary actuating device (100) to a bicycle, wherein the clamping structure (1): a clamping section (2) having a clamping axis (X) and designed to be clamped to the bicycle, and an operating component support section (3) configured to support an operating component (101) of a bicycle rotary operating device (100), characterized by , that a slot (4) is formed between the clamping section (2) and the actuating component bearing section (3) in the axial direction parallel to the clamping axis (X). [8] Clamping construction (1, 20, 30, 40, 50, 60) according to one of the preceding claims, wherein the clamping portion (2) comprises an annular part (5) having a first end (6) and a second end (7), wherein a first lug (8) is arranged at the first end (6) of the annular part (5) and a second lug (9) is arranged at the second end (7) of the annular part (5). [9] Clamping construction (1, 20, 30, 40, 50, 60) according to claim 8, wherein the first lug (8) extends radially outward from the first end (6) of the annular part (5) and the second lug (9) extends radially outward from the second end (7) of the annular part (5). [10] Clamping construction (1, 20, 30, 40, 50, 60) according to claim 8 or claim 9, wherein the first lug (8) has a first opening (10), the second lug (9) has a second opening (11), and the first opening (10) and the second opening (11) are formed to receive a fastening means (12). [11] Clamping structure (1, 30, 40) according to one of the preceding claims, wherein the clamping structure (1) further comprises a connecting portion (13) configured to connect the clamping portion (2) and the actuating member supporting portion (3). [12] Clamping construction (1, 30) according to one of the preceding claims 2 to 11, wherein the slot (4, 31) extends in the circumferential direction (D) relative to the clamping axis (X) and has a first circumferential length (L1). [13] Clamping portion (1, 30) according to claim 12, wherein the connecting portion (13) has a second circumferential length (L2), the first circumferential length (L1) being greater than the second circumferential length (L2). [14] Clamping structure (1, 30, 40) according to one of claims 11 to 13, wherein the connecting portion (13) is offset in the circumferential direction (D) with respect to the first and second projections (8, 9). [15] Clamping construction (1, 20, 30, 40, 50, 60) according to one of the preceding claims, wherein the clamping portion (2) has an additional slot (14). [16] Clamping construction (1, 20, 30, 40, 50, 60) according to claim 15, wherein the additional slot (14) extends in the circumferential direction (D). [17] Clamping structure (1, 20, 30, 40, 50, 60) according to claim 15 or 16, wherein the additional slot (14) has a third circumferential length (L3) which is equal to or less than the first circumferential length (L1). [18] Clamping structure (1, 20, 30, 40, 50, 60) according to one of the preceding claims, wherein the clamping portion (2) has a first axial length (AL1) and the actuating member bearing portion (3) has a second axial length (AL2) which is greater than the first axial length (AL1). [19] Clamping structure (1, 20, 30, 40, 50, 60) according to one of the preceding claims, wherein the clamping portion (2) and the actuating member bearing portion (3) are integrally formed as a one-piece unitary component. [20] Clamping structure (1, 20, 30, 40, 50, 60) according to one of the preceding claims, wherein the operating member support portion (3) is configured to support a bearing unit (102) arranged in the radial direction relative to the clamping axis (X) between the operating member support portion (3) and the operating member (101) of the bicycle rotary operating device (100). [21] Clamping structure (1) according to one of the preceding claims, wherein the actuating member bearing portion (3) is an annular member having a first end (15) provided with a first fastening structure (17) and a second end (16) provided with a second fastening structure (18), the first fastening structure (17) engaging the second fastening structure (18). [22] Clamping structure (1) according to claim 21, wherein the first fastening structure (17) and the second fastening structure (18) form a dovetail joint. [23] A bicycle rotary operating device (100) comprising the clamping structure (1, 20, 30, 40, 50, 60) according to any one of the preceding claims. [24] Bicycle rotary operating device (100) according to claim 23, further comprising: an actuating component (101) and a bearing unit (102) mounted on the actuating member supporting portion (3) and configured to rotatably support the actuating member (101) on the actuating member supporting portion (3). [25] Bicycle rotary operating device (100) according to claim 24, wherein the operating member (101) comprises an annular base portion (103) having a rotational center axis and a user operating portion (104) extending radially outward from the annular base portion (103) with respect to the rotational center axis.

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