mudguards for a bicycle

Abstract

The disclosure relates to a mudguard for attachment to the steerer tube of a bicycle, comprising an insert that can be inserted into the end of the steerer tube. The insert has an expanding element by which the insert can be clamped to the end of the steerer tube, particularly in the area of ​​a steerer tube cone, and a splash guard connected to a holder. The holder comprises a base that can be axially inserted into a sleeve of the insert. The base is drawn into the sleeve of the insert by magnetic attraction, with the holder and insert snapping into a connected state.

Description

Field of the invention

[0001] The invention relates to a mudguard for a bicycle, which can be attached to the fork tube of the bicycle. Background of the invention

[0002] Retrofittable mudguards for bicycles, which protect the rider from dirt and moisture, are known. These can in particular comprise a holder which is inserted into the fork stem tube which is open at the front and is clamped.

[0003] From the published patent application EP 3 339 150 A1 a mudguard is known whose fastening mechanism comprises two Magnets are included to make it easier to attach the mudguard. However, attaching the Mudguard from the side from the front, as the guide rail must be hit precisely. Furthermore, the magnets attract a rather large volume structure. Mudguards that can be attached to the fork tube are also described in the documents DE 20 2012 104 082 U1, DE 10 2012 101 584 A1 and DE 20 2017 104 413 U1.

[0004] Also known from practice is a product sold under the trade name MonkeyLink® by SKS Metaplast Scheffer- Klute GmbH, in which the mudguard includes a holder which is axially inserted into a The insert is inserted into the fork tube clamped in place. A magnetic attraction ensures the insertion of the To remove the mudguard, simply unlock it and pull it out against the magnetic force. The disadvantage is that the clamp is located quite deep in the fork tube. The bracket on the mudguard must therefore have to be designed accordingly long, which also makes installation more difficult. Object of the invention

[0005] The invention is based on the object of eliminating the disadvantages of the prior art In particular, a robust, simple and easy-to-install mudguard should be Mounting on the steerer tube. Summary of the invention

[0006] The object of the invention is already achieved by a mudguard for attachment to the fork tube of a bicycle according to one of the independent claims.

[0007] Preferred embodiments and developments of the invention are the subject of the dependent Claims, description and drawings.

[0008] The invention relates to a mudguard for attachment to the fork tube of a bicycle. Under a bicycle in The invention also includes vehicles equipped with an electric auxiliary motor, so-called e-bikes and This includes pedelecs and multi-track vehicles, especially cargo bikes.

[0009] The mudguard is designed to be attached to the fork tube which is open at the bottom. ´´Bottom´´ and ´´top´´ as well as ´´front´´ and ´´rear´´ refer to the installation position during intended use.

[0010] The mudguard comprises an insert that can be inserted into the end of the fork tube. The insert has a Spreading element, by means of which the insert can be clamped to the end of the steerer tube.

[0011] The insert is clamped at the lower end of the steerer tube, especially in the steerer cone. a particularly short design is possible.

[0012] Furthermore, the mudguard includes a splash guard. A splash guard is understood to be a profile that protects the Protects the driver from splashing water and dirt. Such a component is also commonly called a fender The splash guard can be designed, in particular, as an injection-molded plastic part.

[0013] The splash guard is connected to a holder. The holder is used to attach the splash guard to the insert. The insert remains stationary on the bike, whereas the holder, when dismantled, is removed together with the splash guard is removed.

[0014] The holder comprises a base which can be inserted axially into a sleeve of the insert.

[0015] The base can be designed in particular as a component protruding from a base plate, which in axial direction (relative to the center axis of the steerer tube) into the insert.

[0016] This ensures a particularly robust attachment of the splash guard.

[0017] Preferably, the holder and insert are secured against rotation. This can be done in particular by a polygonal cross-section of the base, in particular a rectangular cross-section.

[0018] Furthermore, the base is drawn into the sleeve of the insert by magnetic attraction, whereby the holder and insert lock in a connected state.

[0019] A magnetic attraction between the insert and the holder ensures easy mounting of the holder on the insert. The holder moves axially into the insert. Preferably, the magnetic attraction force is so high that a The locking between the holder and the insert is automatic, in particular by a latch against a spring preload is pushed back.

[0020] To remove the holder and splash guard, the locking mechanism is released and the splash guard and holder pulled downwards against the magnetic attraction.

[0021] Due to the locking mechanism, the splash guard is held securely even in the event of major shocks, such as Off-road driving, guaranteed.

[0022] The expansion element is directly adjacent to the sleeve. The sleeve thus forms a lower part and the Injection-molded part an upper part of the insert. Preferably, the sleeve has a height of less than 3 cm, in particular of less than 2 cm, especially 1-3 cm.

[0023] According to a preferred embodiment of the invention, a magnetic element, in particular a magnet, in which base and two further magnetic elements, in particular magnets, are arranged in the wall of the sleeve. The Magnets can thus be arranged in particular on a row extending perpendicular to the central axis of the sleeve.

[0024] The magnets are therefore particularly aligned in such a way that the middle magnet, which sits in the base, is laterally attracted by the magnets in the sleeve. The polarity of the magnets is opposite to this aligned.

[0025] Such an arrangement can provide a relatively high attraction force. Furthermore, the sleeve In particular, a screw for spreading the The expansion element must be provided in an easily accessible manner at the bottom of the sleeve.

[0026] In a further development of the invention, a bolt protrudes from a side wall of the base and engages in the connected state into a recess in the sleeve. The locking takes place inside the sleeve. This allows a compact design and at the same time protects the latch from dirt.

[0027] The invention makes it possible to provide a particularly short insert, in particular an insert which is less than 6 cm into the cable tube, in particular the insert protrudes 2-5 cm into the steerer tube.

[0028] In a preferred embodiment of the invention, the spreading element comprises three by means of an upper and a lower cone with expandable segments.

[0029] The lower cone can be designed in particular as a head piece of the sleeve.

[0030] The upper cone forms a counter-holder and spreads the expansion elements from above.

[0031] The tip angle of the cone can be 30-60°.

[0032] The segments of the spreading element are preferably made of a rigid material, in particular of metal or Made of plastic. Compared to an expandable elastic insert, a higher clamping force can be generated. Furthermore, a larger diameter range can be achieved with separate segments regarding the inner diameter of the Cover the steerer tube.

[0033] According to a further aspect of the invention, this relates to a mudguard for attachment to the fork tube a bicycle.

[0034] This can be designed in particular as described above.

[0035] The mudguard comprises an insert which can be inserted into the fork shaft and which has an expanding element, which allows the insert to be clamped in place.

[0036] Furthermore, according to this aspect of the invention, the mudguard also comprises a splash guard which is provided with a Holder is connected, wherein the holder comprises a base which can be inserted axially into a sleeve of the insert.

[0037] The base is pulled into the sleeve of the insert by magnetic attraction and the holder and insert are a locking element can be locked.

[0038] According to this aspect of the invention, the locking element comprises a latch that can be moved out of the base of the holder, which can be reset by moving the locking element against a spring preload.

[0039] The locking element is in particular linearly displaceable.

[0040] The locking element can in particular comprise an integrally formed spring. Thus, the locking element for example, as a plastic injection-molded part with an integrated spring.

[0041] The spring may in particular be a wave spring. A wave spring is, in the sense of the invention, a springy section that meanders in a serpentine manner.

[0042] According to one embodiment of the invention, the locking element comprises an unlocking member which has a Base plate of the holder, in particular in a rail. The bolt is guided through a channel of the base and protrudes from a side wall of the base.

[0043] By pressing the release mechanism, the bolt is pulled inwards and the locking mechanism is released.

[0044] According to a further aspect, the disclosure relates to a mudguard, which in particular as above and has an insert that can be inserted into the steerer tube with an expanding element, via which the Insert can be clamped in place.

[0045] Furthermore, the mudguard has a splash guard which is connected to a holder, wherein the holder and insert can be connected to each other.

[0046] The mudguard comprises an adapter extending around the expansion element for adaptation to the Inner diameter of the steerer tube.

[0047] The adapter can in particular be designed as a slotted sleeve.

[0048] According to the disclosure, a single adapter allows use on steerer tubes with a Inner diameter of 21-35 mm ensured.

[0049] This allows in particular a spreading element which is divided into segments which have an upper and a lower cone spread apart.

[0050] This allows a large diameter range, especially from 21 - 31, to be achieved without the use of an adapter. mm. To cover larger diameters up to 35 mm, a single adapter is sufficient.

[0051] The invention further relates to a bicycle which is equipped with the above-described mudguard is. Brief description of the drawings

[0052] The subject matter of the invention will be explained below using an embodiment with reference to the Drawings Fig. 1 - Fig. 13 are explained in more detail. Fig. 1 is a perspective view of an embodiment of a mudguard. Fig. 2 and Fig. 3 are perspective views of the mudguard in use. Fig. 4 is an exploded view of the insert. Fig. 5 is a perspective view of the insert's counterholder. Fig. 6 is a perspective view of a segment of the expansion element. Fig. 7 is a detailed view of the removed splash guard in the area of ​​the holder. Fig. 8 is a detailed view from below. Fig. 9 is a perspective view of the holder and locking element. Fig. 10 and Fig. 11 are exploded views of the holder and locking element. Fig. 12 is a longitudinal section. Fig. 13 is a schematic representation of the insert inserted into a steerer tube. Detailed description of the drawings

[0053] Fig. 1 shows a perspective view of a mudguard 1.

[0054] The mudguard 1 comprises, for attachment to the fork tube, an insert 100 which clamps in the Fork stem tube can be fixed (see Fig. 12).

[0055] The insert 100 remains on the bicycle even when the mudguard is removed.

[0056] Furthermore, the mudguard 1 comprises a splash guard 10. This can in particular be made as a plastic injection-molded part be trained.

[0057] In this embodiment, the splash guard 10 has a step 11.

[0058] The splash guard 10 comprises a holder 200, which has a base which is axially inserted into the insert 100 can be inserted.

[0059] During assembly, the holder 200 is pulled into the insert 100 by magnetic force and locked. Splash guard 10 easily and securely attached.

[0060] To remove the splash guard 10, the user presses the release member 211 and pulls the splash guard 10 together with holder 200 downwards against the magnetic force of attraction.

[0061] Fig. 2 is a perspective view of the insert 100. The insert 100 comprises a base plate 110, which in When mounted, it rests on the end of the steerer tube.

[0062] A sleeve 111 extends inwards or upwards from the base plate 110. Adjacent to the sleeve extends the expansion element 120, which comprises three expandable segments 121.

[0063] As shown in the perspective view according to Fig. 3, the sleeve 111 of the insert 100 comprises a channel 112, into which the base of the holder (see 201 in Fig. 7) is inserted.

[0064] By tightening the screw 101, the head of which is located at the end of the channel 112, the insert 100 be fixed by clamping.

[0065] In this embodiment, channel 112 and base of the holder have a rectangular cross-section with rounded corners. The base can preferably only be inserted into the channel 112 in a single orientation. Thus, the insertion position of the Holder in the insert 100 clearly defined.

[0066] This is realized in this embodiment by the fact that in cross section corners of the channel 112 and the base have different radii. In particular, the front corners have a larger radius than the rear corners.

[0067] Furthermore, the insert 100 comprises a recess 113 in the area of ​​the base plate 110, which in cooperation with a corresponding extension of the holder (203 in Fig. 7) forms a positive connection, the insert 100 and holder additionally secures against twisting.

[0068] Fig. 4 is an exploded view of the insert 100.

[0069] The insert 100 comprises the sleeve 111, which has an opening 114 from which, in the assembled state, the latch of the locking element.

[0070] The sleeve 111 comprises a conical head piece 115, which allows the segments 121 of the Spreading element serves.

[0071] In this embodiment, conically aligned rails 116 are provided in which the segments 121 with the grooves 122. The segments 121 are thus secured against rotation relative to the conical head piece 115.

[0072] A screw 101 is guided through the through hole 117, which is engaged in a thread 131 of the counterholder 130 takes effect.

[0073] The thread 131 can be provided, for example, by an inserted or injected nut.

[0074] The segments 121 are connected via O-rings 102, which are inserted into the circumferential grooves 123, held together.

[0075] The magnets 118 are inserted opposite each other in the side wall of the sleeve 111. These can for example, glued or injected.

[0076] Furthermore, an adapter 2 is provided, which is designed as a slotted ring and which is mounted on the expansion element can be set up.

[0077] The adapter 2 is used to adapt the expansion element to larger inner diameters of the steerer tube.

[0078] Fig. 5 is a perspective view of the counterholder 130.

[0079] The counterholder 130 also has conically aligned rails 132 for spreading the segments of the Spreading element.

[0080] Fig. 6 is a perspective view of an expansion element 121.

[0081] The spreading element 121 comprises the inclined according to the inclination of the rails of the counterholder and Grooves 122 formed in the head piece as well as the circumferential grooves 123 into which the O-rings are inserted.

[0082] Fig. 7 is a perspective view of the removed splash guard 10 in the area of ​​the holder 200.

[0083] The holder 200 comprises the base plate 202, which is pushed into the rails 12 of the splash guard 10.

[0084] The base 201 projects into the insert in the assembled state.

[0085] The bolt 212 protrudes from the side wall of the base.

[0086] By pressing the release member 211 of the locking element 210, the bolt 212 is reset and the Splash guard 10 can be removed.

[0087] The extension 203 serves in cooperation with a recess of the insert (113 in Fig. 3) an additional Stabilization.

[0088] Fig. 8 is a perspective view of the splash guard 10 from below.

[0089] On the lower side, i.e. opposite the holder, a plate 205 runs in a rail 13 of the Splash guard 10.

[0090] The holder is longitudinally displaceable relative to the splash guard 10.

[0091] After loosening the screw 204, the splash guard 10 can be moved in its position in the longitudinal direction relative to the holder This allows for adaptation to the respective frame geometry.

[0092] Fig. 9 is a perspective view of the holder 200 from below.

[0093] The locking element 210 can now be seen, which is arranged in the rail 207, which is arranged on the base plate, is guided.

[0094] The locking element 210 comprises the unlocking member 211, which counter to the preload of the wave spring 213 can be moved linearly to retract the bolt.

[0095] The wave spring 213 merges into an arm 214 which is suspended in a recess of the rail 207.

[0096] The thread 208 is used to mount the holder 200 on the splash guard.

[0097] The side wings 206 serve to insert the holder into the rails of the splash guard (12 in Fig. 7).

[0098] Fig. 10 is an exploded view of the holder 200.

[0099] It can be seen that the locking element has the latch 212, which projects into the base 201 and which protrudes from the base through opening 209.

[0100] The magnet 220 is inserted into the base 201, in particular glued or injected.

[0101] When assembled, the opposite poles of the magnets of the insert (118 in Fig. 4) are opposite on a plane of the side wall of the sleeve of the insert.

[0102] As shown in Fig. 11, the locking element 210 is inserted into the rail 207 of the insert.

[0103] Fig. 12 is a central longitudinal section of the insert and holder area.

[0104] It can be clearly seen that the magnets 118 of the insert and the magnet 220 of the holder are arranged in a direction perpendicular to the Central axis m aligned row are arranged.

[0105] Below the magnets 118, 220, the holder is secured in use by the latch 212.

[0106] The unlocking member 211 for retracting the bolt 212 is arranged at the rear, relative to the direction of travel.

[0107] Fig. 13 shows a schematic representation of the insert 100 inserted into the steerer tube 20.

[0108] The steerer tube 20 has a conical area at the front, namely the steerer cone 21.

[0109] The expansion element 120 of the insert 100 is located in the area of ​​the fork shaft cone.

[0110] This ensures a particularly short design.

[0111] For fork tubes with larger diameters, the adapter shown in Fig. 4 is used (not shown).

[0112] The invention made it possible to provide an easily attachable and robustly designed mudguard, which is particularly suitable for a wide range of steerer tube diameters. List of reference symbols 1 mudguard adapter 2 10 Splash guard 11th level 12 rail 13 Rail 20 steerer tube 21 Fork steerer cone 100 bets 101 Screw 102 O-ring 110 base plate 111 Sleeve 112 Channel 113 Recess 114 Opening 115 conical headpiece 116 Rail 117 Through hole 118 Magnet 120 expansion element 121 segments 122 groove 123 groove 130 counterholders 131 threads 132 rail 200 holders 201 base 202 base plate 203 Extension 204 screw 205 plate 206 wings 207 Rail 208 threads 209 Opening 210 locking element 211 Unlocking device 212 bars 213 Wave spring 214 Arm 220 Magnet

Claims

1. Mudguard (1) for attachment to the fork tube (20) of a bicycle, comprising an insert (100) insertable into the end of the steerer tube (20), wherein the insert (100) comprises an expansion element (120) by means of which the insert (100) can be clamped to the end of the fork tube (20), a splash guard (10) connected to a holder, the holder being axially inserted into a sleeve (111) of the insert (100) insertable base (201), wherein the base (201 is magnetically attracted into the sleeve (111) of the bet (100) is drawn, and wherein the holder (200) and insert (100) lock in a connected state.

2. Mudguard (1) according to the preceding claim, characterized in that the spreading element (120) directly adjacent to the sleeve (111).

3. Wheel protector (1) according to one of the preceding claims, characterized in that a magnetic element in the Base (201) is arranged and that two further magnetic elements are arranged in the wall of the sleeve (111).

4. Mudguard (1) according to one of the preceding claims, characterized in that a bolt (212) consists of a side wall of the base (201) and, when connected, engages in a recess (113) of the sleeve (111).

5. Mudguard (1) according to one of the preceding claims, characterized in that the insert (100) has less than 6 cm into the fork stem tube (20), in particular 2 to 5 cm.

6. Mudguard (1) according to one of the preceding claims, characterized in that the spreading element (120) has three comprises segments that can be expanded by means of an upper and a lower cone.

7. Mudguard (1) for attachment to the fork tube (20) of a bicycle, comprising an insert (100) insertable into the steerer tube (20), the insert having an expansion element (120), via that the insert (100) can be clamped, a splash guard (10) connected to a holder (200), the holder (200) having a housing (111) axially inserted into a sleeve of the insert (100) insertable base (201), wherein the base (201) is magnetically attracted hung is pulled into the sleeve (111) of the insert (100), and wherein the holder (200) and insert (100) can be locked via a locking element (210), wherein the locking element (210) has a from the base (201) of the holder (200) extending latch (212) which is actuated by a displacement of the The locking element (210) can be reset against a spring preload.

8. Mudguard (1) according to the preceding claim, characterized in that the locking element (210) has an integral formed spring, in particular formed as a wave spring.

9. Mudguard (1) for attachment to the fork tube (20) of a bicycle according to claim 7 or 8, characterized characterized in that the mudguard (1) has an adapter extending around the spreading element (120) for adapting to the inner diameter of the fork tube shaft (20), wherein with a single adapter the insert (100) can be Fork tubes (20) with an inner diameter of 21 mm-35 mm can be attached.

10. Bicycle comprising a mudguard (1) according to one of the preceding claims.