Mounting system for attaching an accessory to a bicycle
The fastening system for bicycle accessories uses a screw clamp and holder with a locking mechanism for easy and secure attachment, addressing the complexity and stability issues of existing systems, enabling easy installation and removal while maintaining high clamping forces.
Patent Information
- Application Number
- DE102023131909
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-11-16
- Publication Date
- 2025-12-31
- Estimated Expiration
- 2043-11-16
AI Technical Summary
Existing fastening systems for attaching accessories like mudguards and bags to bicycle seat posts are complex and require high clamping forces, making them difficult to install and remove.
A fastening system featuring a support with a clamp and a holder that uses a screw mechanism to securely attach accessories, allowing easy installation and removal, with a locking mechanism that ensures the accessory and holder can be detached without twisting, and includes a hooking and locking mechanism for secure attachment.
The system provides a robust and aesthetically pleasing solution that allows easy and secure attachment and removal of accessories, ensuring high clamping forces without twisting under vibration.
Smart Images

Figure 00000000_0000_ABST
Abstract
Description
Field of invention
[0001] The invention relates to a fastening system for attaching an accessory to a bicycle. In particular, the invention relates to a fastening system for attaching a mudguard or a bag to the seat post.
[0002] The invention further relates to a wheel guard equipped with the fastening system or a bag equipped with the fastening system. Background of the invention
[0003] It is known to use the seat post of a bicycle, which in the sense of the invention also includes one with an electric auxiliary drive, i.e. an e-bike or pedelec, or a multi-track pedal-driven vehicle, for attaching accessories.
[0004] Especially with mudguards and bags, the requirements for such a fastening system are relatively high, as these are comparatively heavy components whose center of gravity is located relatively far from the central axis of the seat post.
[0005] Utility model DE 20 2012 102 842 U1 discloses, for example, a removable mudguard that can be attached to the seat post. The fastening system of this mudguard comprises a tension band which is tightened by means of a ratchet mechanism. This allows for relatively high clamping forces to be generated.
[0006] However, attaching such a tension band is relatively complex. It must first be threaded into the ratchet mechanism and then tightened with a relatively high force.
[0007] Bicycle mudguards are also known from the documents DE 10 2020 122 100 A1, DE 20 2013 000 974 U1, DE 20 2014 010 491 U1, DE 20 2021 106 714 U1 and CN 204 021 076 U. Object of the invention
[0008] In contrast, the invention is based on the objective of providing a robust fastening system for accessories on a seat post, in which the accessory can be easily attached and removed. Summary of the invention
[0009] The object of the invention is already achieved by a fastening system for attaching an accessory to a bicycle according to claim 1 and by an accessory, in particular a bag or a mudguard with such a fastening system.
[0010] Preferred embodiments and further developments of the invention can be found in the subject matter of the dependent claims, the description and the drawings.
[0011] The invention relates to a fastening system for attaching an accessory to a bicycle.
[0012] The fastening system includes a support that can be attached to a vertical tube and which includes a clamp.
[0013] A vertical tube is understood to be a tube which, in its intended use, extends from bottom to top. "Bottom," "top," "front," and "back" as used in the invention refer to its intended use.
[0014] The vertical tube can be, in particular, the seat post of the bicycle or the seat tube of the bicycle frame.
[0015] The clamp can be designed as a screw clamp, in which at least one, preferably two, screws press the clamping shells together. While installation is more complex compared to, for example, a ratchet strap, high clamping forces can be achieved using a screw clamp, ensuring that the accessory and its fastening system do not twist under vibration.
[0016] Furthermore, the fastening system includes a holder that can be connected to the carrier, to which the accessory can be attached.
[0017] The holder includes a receptacle for the accessory, in particular for the mudguard. The receptacle may, in particular, include a through-hole for passing a screw. A central axis of the receptacle is preferably perpendicular to a central axis of the bracket's clamp.
[0018] The holder can be hooked into the carrier and locked into place by a downward swiveling motion.
[0019] The holder is therefore designed to be removable from the carrier. This means the carrier remains attached to the bicycle when the accessory is removed. This allows for easy attachment and removal of both the accessory and the holder.
[0020] The hooking and locking mechanism allows for particularly easy and secure attachment of the holder to the carrier.
[0021] In a preferred embodiment of the invention, the holder comprises a housing in which a locking element is arranged, which includes an actuating element by means of which a latch, which locks the holder to the carrier, can be unlocked against a spring preload.
[0022] The bolt is designed such that it springs back when pivoted downwards and automatically engages, particularly on a web of the support. Pressing the fastening element moves the bolt back, particularly downwards, thus releasing the lock. The bolt can be arranged, in particular, on a downwardly movable arm.
[0023] This arm can, in particular, be led out of the housing of the holder via a step that is guided through an opening in the housing.
[0024] In the area of the step, side walls of the housing can, in particular, abut an end wall of the step. The opening in the housing can be provided, in particular, by a lower plate of the housing having a recess, so that an opening is formed opposite a side wall of the main housing.
[0025] The end wall can encompass a step, to which the step's side walls adjoin. The step walls thus extend, at least partially, around the corner, forming an angle. This improves the step's stability.
[0026] To allow the step to be led out, the housing of the holder may include a U-shaped opening on the underside.
[0027] The side walls of the step can extend from the housing, in particular through slots that run transversely to the opening for the step. This provides a particularly robust design for the step.
[0028] Furthermore, the bolt and / or the hook can engage under a rib of the carrier's housing.
[0029] The support can, in particular, include a recess into which a projection of the holder is inserted. Above and below this recess is a rib into which, on the one hand, the hook and, on the other hand, the bolt engage.
[0030] According to one embodiment of the invention, the hook is designed as a preferably straight web. This ensures resistance to twisting.
[0031] In a further development of the invention, the carrier can be connected to the holder in a first position and in a second position rotated by 180°.
[0032] The bracket can be attached to the tube in two different positions. If a receptacle for the accessory is offset from a central plane on the bracket housing, the height of the receptacle can be adjusted by rotating it 180°.
[0033] The latch and / or hook are preferably concealed within the housing of the carrier when connected, meaning that neither the latch nor the hook protrudes from the housing of the carrier when connected. This provides an aesthetically pleasing design. At the same time, the latch and hook are protected from the elements and dirt.
[0034] The invention further relates to an accessory for a bicycle equipped with the fastening system described above. The accessory may, in particular, be a mudguard or a seat post.
[0035] A mudguard consists of a splash guard which, when attached, is positioned above the rear wheel of the bicycle. The splash guard can, for example, be made of injection-molded plastic. Brief description of the drawings
[0036] The subject matter of the invention will below be described with reference to an exemplary embodiment shown in the drawings. Fig. 1 to Fig. 13 will be explained in more detail. Fig. Figure 1 shows a perspective view of an embodiment of a fastening system for an accessory. Fig. 2 to Fig. Four are perspective views of the carrier. Fig. Figure 5 is an exploded view of the carrier. Fig. 6 and Fig. Figure 7 each shows a perspective view of an elastic application of the support. Fig. 8 and Fig. 9 are perspective views of the holder. Fig. Figure 10 is a perspective exploded view of the holder. Fig. Figure 11 is a perspective view of the locking element. Fig. Figure 12 is a perspective view of the holder from below. Fig. Figure 13 shows a perspective view of an accessory in the form of a wheel guard equipped with the fastening system. Detailed description of the drawings
[0037] Fig. Figure 1 shows an embodiment of a fastening system according to the invention in a perspective view.
[0038] The fastening system 1 comprises two separable components, namely the carrier 100 which can be attached to the seat post and the holder 200 for the accessory.
[0039] The carrier 100 includes a clamp with two clamping shells for attachment to the seat post.
[0040] The side walls of the carrier 100 preferably transition seamlessly into the side walls of the housing 220 of the holder 200.
[0041] In this embodiment, the housing of the holder 200 tapers in the proximal direction with respect to the accessory. In this embodiment, the housing 220 of the holder 200 is trapezoidal in a top view. This provides an aesthetically pleasing and compact representation.
[0042] To connect the holder 200 to the support 100, the hook 222 of the holder 200 is hooked behind a web 112b of the support 100.
[0043] Then the holder 200 is pivoted downwards and a latch engages.
[0044] The housing 220 of the holder 200 contains a locking element with an actuating element 212.
[0045] By pressing the actuating element 212, the locking mechanism is released by the latch and the holder 200 can be pivoted upwards and unhooked.
[0046] The actuating element 112 is arranged on the top of the housing 220. The actuating element 112 can also be trapezoidal in plan view.
[0047] For connecting to the accessory, in particular for connecting to a mudguard or a bag, a rearward-projecting receptacle 201 is arranged on the housing 220 of the holder 200.
[0048] The inlet 201 includes a through hole 203, through which, for example, a screw can be inserted to attach the mudguard of the wheel guard (see Fig. 13).
[0049] A serrated star-shaped profile extends around the through-hole 203, which, in conjunction with a complementary profile of the accessory, provides a rotation protection.
[0050] The accessory's angle can be adjusted by loosening the screw connection.
[0051] Fig. 2 is a perspective view of the carrier 100.
[0052] The carrier 100 is formed by a proximal clamping shell 110 and a distal clamping shell 120 and can thus be clamped to the seat post.
[0053] The proximal clamping shell 110 includes a recess 111 at its proximal end, into which a projection of the holder (221 in Fig. 10) is plugged in.
[0054] The recess 111 is bounded at the top and bottom by the webs 112a and 112b. In this embodiment, the webs 112a and 112b are identical, so that the support 100 can be used in conjunction with the holder in a position rotated by 180°.
[0055] Adjacent to the recess 111 are further recesses 113, which serve in particular to save weight.
[0056] As shown in the illustration according to Fig. As can be clearly seen in Figure 3, the webs 112a, 112b are aligned flush with the top and bottom surfaces of the housing of the proximal clamping shell 110.
[0057] In the perspective view according to Fig. Figure 4 shows the distal side of the carrier 100.
[0058] The clamping shells 110 and 120 are pressed together by tightening the two screws 101, which pass through the housing of the distal clamping shell 120. This allows high holding forces to be generated.
[0059] Fig. Figure 5 is a perspective exploded view of carrier 100.
[0060] The proximal clamping shell 110 is designed as a half-shell. Threaded inserts 115 are inserted into the end faces of the arms of the clamping shell 110. These can be, for example, glued in, overmolded with the plastic material of the clamping shell 110, or pressed into holes in the clamping shell 110. The threaded inserts 115 are preferably made of metal.
[0061] Furthermore, an elastic insert 130a, 130b is inserted into both the proximal clamping shell 110 and the distal clamping shell 120.
[0062] To secure the elastic inserts 130a, 130b, the clamping shells 110, 120 include slots 114 into the webs (131 in Fig. 6 and Fig. 7) intervene.
[0063] The distal clamping shell 120 includes through holes 121 through which the screws 101 are guided to tighten the clamp.
[0064] Fig. Figure 6 is a perspective view of the elastic insert 130a for the proximal clamping shell.
[0065] The elastic insert 130a comprises several, in this embodiment three, radially extending webs 131. In the central region, the webs 131 are recessed to provide space for the locking mechanism, more precisely for the recess of the locking mechanism (111 in Fig. 2) to create.
[0066] The in Fig. In contrast, the elastic insert 130b shown in Figure 7 for the distal clamping shell includes webs 131 which also extend over the middle area.
[0067] The elastic inserts 130a, 130b are made of an elastic flexible material, such as rubber, silicone or an elastomer.
[0068] The semi-circular elastic inserts 130a, 130b provide a non-slip contact surface. Simultaneously, when the clamp is tightened, the elastic inserts 130a, 130b are compressed, thus ensuring a secure hold for the carrier.
[0069] Fig. Figure 8 is a perspective view of the holder 200.
[0070] The holder 200 includes a bolt 211 at the bottom, which is arranged on an arm-shaped locking element 210.
[0071] The bolt 211 includes an inclined, in particular ramp-shaped, contact surface for the bridge and thus springs back when pivoting downwards.
[0072] The housing 220 of the holder 200 is guided into the corresponding recess of the carrier with the extension 221 leading the way.
[0073] In this embodiment, the extension 221 has a substantially rectangular cross-section and is formed internally with a stabilizing, web-shaped lightweight structure 223.
[0074] At the front end of the extension 221, a hook 222 extends upwards.
[0075] Hook 222 is designed as a straight, straight bridge.
[0076] This hook is, as in Fig. 1 shown, passed under the bridge of the support and hooked behind the bridge.
[0077] The actuating element 212 is accessible on the upper side of the housing 220. Pressing the actuating element 212 moves the bolt 211 downwards against a spring preload.
[0078] On the opposite side of hook 222 and latch 211 is the receptacle 201 for the accessory.
[0079] Fig. Figure 9 is another perspective view of the holder 200, now showing the underside of the housing 220 of the holder 200.
[0080] The underside is formed by a base plate 230, which is connected to the rest of the housing.
[0081] The base plate includes at least partially longitudinally extending slots 231, through which an arm 213, on which the bar 211 is arranged, is passed.
[0082] Fig. Figure 10 is an exploded view of the holder.
[0083] The housing 220, together with the extension 221 and the hook 222 and the receptacle 201 for the accessory, is formed in one piece, in particular as an injection-molded part.
[0084] On an upper side of the housing there is an opening 224 through which the actuating element 212 is accessible.
[0085] The actuating element 212 is part of a locking element 210, which is preferably also designed as a plastic injection-molded part. The locking element 210 comprises an upper stage 214, which serves as a stop in the housing 220 of the holder.
[0086] A lower stage 215 transitions into an arm 213, at the end of which the bar 211 is located.
[0087] The arm 213, along with the locking bar 211, is led out of the housing 220 via stage 215.
[0088] In this embodiment, the base plate 230 includes through holes 234 for screwing the base plate in place.
[0089] Furthermore, the base plate 230 includes a spring receptacle 232, onto which the spring 202, which in this embodiment is designed as a coil spring, is placed.
[0090] Furthermore, the base plate includes longitudinally extending slots 231 for leading out the step 215.
[0091] Furthermore, the base plate includes a transverse recess 235, which leads from one slot 231 to the other slot 231. The recess 235 and the slots 231 provide a U-shaped opening in the housing 220, through which the step 215 is led out.
[0092] Fig. Figure 11 is a perspective view of the locking element 210.
[0093] The locking element 210 includes a spring receptacle 225 for the spring (202 in) below the actuating element. Fig. 10).
[0094] This illustration clearly shows that level 215 comprises a transverse wall as well as the side walls 226 extending from it.
[0095] The walls of the stage 215 extending from the housing run around the corner, which improves the stability of the locking element 210 in the area of the stage 215.
[0096] Fig. Figure 12 is a perspective view of the underside of the holder 200.
[0097] The opening for the step of the locking element is U-shaped and is formed in particular by the two slots 231 and the recess 235 of the base plate 230.
[0098] Fig. Figure 13 is a perspective view of an accessory in the form of a wheel guard 10.
[0099] The wheel guard 10 is equipped with the previously shown fastening system 1.
[0100] The wheel guard 10 includes a splash guard 11, which is attached to the mount 201 via the arms 12.
[0101] The arms 12 are forked and connected laterally to an axis 13, for example via a screw, to the splash guard 11. The lateral gripping of the arms 12 provides high torsional rigidity.
[0102] The splash guard 11 is also adjustable in its inclination on axle 13.
[0103] The invention made it possible to provide a robustly designed and easily attachable and removable fastening system for an accessory such as a mudguard or a bag. Reference symbol list 1 fastening system 10 mudguards 11 Splash guard 12 arms 13th axis 100 carriers 101 screw 110 proximal clamping shell 111 Exclusion 112a Steg 112b Bridge 113 Exclusion 114 slots 115 threaded insert 120 distal clamping shell 121 Through hole 130a / 130b elastic insert 131 Bridge 200 holders 201 recording 202 spring 203 Through hole 210 Locking element 211 bars 212 Actuating element 213 Arm 214th level 215th level 220 case 221 continuation 222 hooks 223 Lightweight structure 224 Opening 225 spring mount 226 side wall 230 base plate 231 slots 232 Spring mount 234 Through hole 235 Jump back
Claims
[1] Fastening system for attaching an accessory to a bicycle, comprising a support that can be attached to a vertical tube and includes a clamp, as well as a holder that can be connected to the carrier, to which the accessory can be attached, the holder can be hooked into the carrier and locked into place by a downward pivoting motion. [2] Fastening system according to the preceding claim, characterized by , that the holder comprises a housing in which a locking element is arranged, which includes an actuating element by means of which a bolt, which locks the holder to the carrier, can be unlocked against a spring preload. [3] Fastening system according to the preceding claim, characterized by that the bolt is arranged on a downward-moving arm. [4] Fastening system according to the preceding claim, characterized bythat the arm is led out of the holder's housing via a step that passes through an opening. [5] Fastening system according to the preceding claim, characterized by , that in the area of the step, side walls adjoin an end wall of the step. [6] Fastening system according to the preceding claim, characterized by that the side walls are led out of the housing through slots extending transversely to the opening for the step. [7] Fastening system according to any one of the preceding claims, characterized by that the latch and / or the hook engages under a rib of the carrier's housing. [8] Fastening system according to any one of the preceding claims, characterized by , that the carrier can be connected to the holder in the first position and in a second position rotated by 180°. [9] Fastening system according to any one of the preceding claims, characterized by, that the hook is arranged on an extension of the holder which engages in a recess of the carrier. [10] Accessory for a bicycle, in particular mudguard or bag, comprising a fastening system according to one of the preceding claims.
Citation Information
Patent Citations
Front bicycle mudguard plate convenient to disassemble
CN204021076U
System for attaching a mudguard to a bicycle
DE102020122100A1
Removable mudguard for a two-wheeler
DE202012102842U1
Snap-in mechanism for secure fastening and easy removal of an insert element in a holding element using easy-to-use push elements
DE202013000974U1
Bicycle saddle arrangement
DE202014010491U1