Bicycle with a mudguard and mudguards

Abstract

Bicycle with a mudguard, wherein the mudguard has a groove in which a sliding element connected to the frame is slidably arranged, wherein the sliding element can be fixed in the groove by tightening a locking device, in particular a screw, characterized in that the groove is T-shaped, wherein an open end of the T-shaped profile of the groove points outwards.

Description

Field of invention

[0001] The invention relates to a bicycle with a mudguard and to a mudguard for a bicycle. The invention further relates to a luggage carrier for a bicycle and to a bicycle equipped with the luggage carrier. Background of the invention

[0002] Various methods of attaching mudguards, especially to the rear wheel of a bicycle, are known in practice. Particularly for mudguards not already fitted to the bicycle at the factory, easy installation is desirable; ideally, it should not be necessary to remove the rear wheel.

[0003] German patent application DE 10 2020 122 100 A1 discloses a fastening system comprising an adapter that can be mounted on the seat stay bridge of a bicycle. Form and positional tolerances can be easily compensated for by means of spacers that can be connected to the adapter.

[0004] These spacers can also be used with a wheel guard already installed.

[0005] However, retrofitting the mudguard is usually not possible with this system without at least unhooking the rear wheel.

[0006] Fastening systems for wheel guards are also known from documents EP 3434 567 A1, GB 2 580 536 A and DE 20 2017 104 339 U1. Object of the invention

[0007] In contrast, the invention aims to further simplify the mounting of a mudguard. A further objective of the invention is to further improve the mounting of an optional luggage rack. Summary of the invention

[0008] The object of the invention is already solved by a bicycle with a mudguard according to claim 1.

[0009] Preferred embodiments and further developments of the invention can be found in the subject matter of the dependent claims, the description and the drawings.

[0010] The invention relates to a bicycle with a mudguard. The mudguard is arranged, in particular, on the rear wheel of the bicycle.

[0011] For the purposes of this invention, a bicycle also includes those with an electric auxiliary drive, i.e. e-bikes and pedelecs.

[0012] The bicycle includes a mudguard which has a groove. A sliding element, connected to the frame, is slidably arranged in the groove.

[0013] The sliding element allows the angular position of the wheel guard to be changed. This enables the mounting system to be adapted to form and positional tolerances. In particular, the sliding element is designed to be displaceable by at least 10°, preferably 20°, of the wheel guard's circumference.

[0014] The mudguard is attached to the seat stay bridge and / or the central frame of the bicycle via the sliding element.

[0015] The sliding element can be secured in the groove by tightening a locking device. The locking device can, in particular, be in the form of a screw.

[0016] It is specifically provided that the locking device is guided by a holder that can be mounted on the bicycle, which is tensioned against the sliding element by tightening the locking device.

[0017] The mudguard can thus be easily fixed in its final mounting position.

[0018] In a further development of the invention, the wheel guard comprises an inner rail in which the groove is arranged. The inner rail can, for example, be made of metal or plastic.

[0019] The inner rail can be an integral part of the wheel guard; in particular, the wheel guard can be designed as a single injection-molded part including the inner rail.

[0020] The inner rail can also be designed as a separate part made of plastic or metal, which is connected to or overmolded with the rest of the wheel guard.

[0021] According to the invention, the groove in the inner rail is T-shaped, with one open end of the T-shaped profile facing outwards. The locking element, in particular the screw, can be guided through this slot formed by the base of the T. Accordingly, the inner rail can have a substantially rectangular cross-section with a slot arranged centrally on one of its long sides. The screw can engage the sliding element through this slot. The sliding element can have a threaded extension, the extension engaging through the slot. The extension thus also serves to guide the sliding element within the inner rail.

[0022] An outer part, forming the profile of the wheel guard, can be positioned on the inner rail. This outer part contains an elongated hole, ensuring that the sliding element can be moved.

[0023] In one embodiment of the invention, the inner rail extends only over a portion of the circumference of the outer part. In particular, the wheel guard is provided to have at least two inner rails. A first inner rail is arranged on the seat stay bridge. In this area, the angular position of the wheel guard can be changed by sliding it.

[0024] In the area of ​​the bottom bracket, also known as the midsection, an inner rail with a sliding element can also be provided. In this area, an adjustable angle is not necessary. The mounting position in the midsection can be fixed. However, it is also possible here for the mudguard to be adjustable by at least a small angle of less than 10° via the sliding element to compensate for form and positional tolerances.

[0025] Preferably, the same mounting elements are used for both attachment to the seat stay bridge and to the central structure, in particular a sliding element and a holder that can be clamped to the sliding element.

[0026] Preferably, the locking device is accessible from above or below without removing the wheel.

[0027] For this purpose, it is particularly provided that a central axis of the locking device is aligned at an angle α of 15 to 60°, particularly preferably 20 to 40°, to the wheel guard. This angle is the angle of a tangent of the wheel guard at the position of the locking device to the central axis of the locking device, in particular the screw.

[0028] It is specifically intended that the securing device is guided by an inclined holder.

[0029] Due to the angled position, the locking mechanism is accessible from above in the area of ​​the seat stay bridge and from below in the area of ​​the central frame. Removing the rear wheel is therefore not necessary for installation.

[0030] The seat strut bridge and the central structure each have a through-hole through which the securing device is guided. The holder preferably also includes a through-hole.

[0031] The locking device engages in the sliding element. The sliding element may, in particular, include an internal thread for a screw.

[0032] Tightening the locking device clamps the sliding element against the holder and simultaneously fixes it to the seat stay bridge or the central structure.

[0033] In a further development of the invention, the locking element, in particular the screw, comprises a head with a conical, in particular spherical, contact surface. This allows the locking element to be implemented polyaxially, thereby also compensating for form and positional tolerances.

[0034] The contact surface of the through-hole in the seat strut bridge or on the central structure is preferably adapted to the shape of the head of the securing device, i.e., in particular, also conical, preferably calotte-shaped.

[0035] In a further development of the invention, the bicycle comprises a luggage carrier which can be attached to the mudguard, in particular to the inner rail of the mudguard.

[0036] The luggage rack can also serve to attach the mudguard by connecting the holder to the dropout via struts.

[0037] Preferably, the luggage carrier is connected to the wheel guard from above, in particular by means of at least one, preferably by means of one, in particular by means of two, screws which lock into a thread of the wheel guard, in particular into a thread of the inner rail.

[0038] The disclosure further relates to a bicycle with a mudguard and a luggage rack. This bicycle can be designed as described above and, in particular, can include all the features described in connection with the mudguard.

[0039] The luggage rack is attached to an inner rail of the mudguard and to the dropout of the bicycle.

[0040] The inner rail is preferably connected to at least the seat strut bridge.

[0041] Preferably, the luggage carrier comprises a base through which a screw passes. The base can, in particular, be designed as a crossbar.

[0042] Preferably, the screw is polyaxially movable at least in the longitudinal direction.

[0043] For this purpose, an intermediate piece with a through-hole for the screws can be provided, forming a circular segment-shaped contact surface against the luggage carrier. This allows for easy compensation of shape and positional tolerances of the luggage carrier.

[0044] In one embodiment of the invention, the struts of the luggage carrier are connected to the dropout, with screws being inserted into the dropout from the rear.

[0045] The back of the dropout therefore includes a thread into which a screw can be inserted in the direction of travel.

[0046] The screws for attaching the luggage rack struts are easily accessible. At the same time, a thread or threaded insert on the back of the dropout is barely visible when no luggage rack is mounted.

[0047] The invention further relates to a wheel guard and / or a luggage carrier designed for the bicycle described above.

[0048] The mudguard or luggage rack may, in particular, have all the features described in connection with the mudguard or luggage rack.

[0049] The wheel guard includes in particular a fastening system which comprises the sliding element and a holder.

[0050] The central axis of a screw guided through the holder is, in particular, as described above, inclined in such a way that the screw for fixing the wheel guard is accessible from above in the area of ​​the seat stay bridge and from below in the area of ​​the central structure.

[0051] According to another aspect, the revelation concerns a wheel guard, specifically as described above.

[0052] The wheel guard comprises a sliding element and a holder, wherein a screw, by means of which the wheel guard can be attached to the frame of the vehicle, is guided through the holder and can be locked in the sliding element, and wherein the central axis of the screw runs obliquely to the wheel guard.

[0053] In particular, the central axis of the screw runs at an angle of 15-60°, preferably 20-40°, to the wheel guard.

[0054] Preferably, the wheel guard comprises two brackets, a first bracket being attachable to the seat stay bridge and a second bracket being attachable to the central structure.

[0055] The screws are accessible from both above and below, without having to remove the wheel.

[0056] The revelation also concerns an arrangement with a first and a second bicycle frame.

[0057] The first bicycle frame is designed for a different wheel size than the second bicycle frame.

[0058] The arrangement further includes a luggage carrier, wherein the luggage carrier can be connected to the dropout of both the first and the second bicycle frame by means of struts, wherein a mounting point for a strut is located at a different height relative to the height of the wheel axle on the first frame than on the second frame.

[0059] This made it easy to use a single rack for frames with different wheel sizes. As the wheel size increases, the mounting point is positioned higher on the frame. The rack is therefore universally adaptable and doesn't need to be adjusted by changing the length of the struts to fit different wheel sizes. Brief description of the drawings

[0060] The subject matter of the invention will be described below with reference to an exemplary embodiment and the drawings. Fig. 1 to Fig. 27 will be explained in more detail. Fig. 1 and Fig. Figure 2 shows perspective views of a bicycle according to the invention. Fig. Figure 3 is a detailed view, with the frame hidden, of the attachment points of the mudguard on the seat stay bridge and center section. Fig. Figure 4 is a detailed view with the mudguard top and wheel hidden. Fig. 5 and Fig. Figure 6 each shows a detailed view of the attachment point on the central structure. Fig. Figure 7 shows a perspective view of the sliding element holder and fastening screw. Fig. Figure 8 is a perspective view of the inner rail of the wheel guard. Fig. Figure 9 is another detailed view of the mounting point on the seat stay bridge. Fig. Figure 10 is a detailed view of the luggage rack area. Fig. Figure 11 shows a detailed view of the dropout from the rear. Fig. 12 and Fig. Figure 13 shows a side view detailing the attachment point at the dropout. Fig. Figure 14 shows the rail and the intermediate pieces for mounting the luggage rack. Fig. Figure 15 is a detailed view of the intermediate piece including the screw. Fig. Figure 16 is a detailed view of the luggage rack from below. Fig. Figure 17 is a detailed view of the rear of the frame. Fig. Figure 18 is a detailed view of the frame in the central area. Fig. 19 is a cross-section and Fig. 20 a longitudinal section in the area of ​​a mounting point, in particular in the area of ​​the seat stay bridge. Fig. 20a serves to explain the angle at which the mounting screws for the wheel guard are accessible. Fig. 21 to Fig. Figure 25 shows alternative embodiments of the invention. In Fig. Figure 21 shows an alternative mounting position for the struts of the luggage carrier. Fig. Figure 22 shows an alternatively usable sliding element. Fig. Figure 23 shows an alternative fastening in the area of ​​the central structure. Fig. Figure 24 shows an alternative way of attaching the luggage carrier to the mudguard. Fig. Figure 25 shows an alternative embodiment of a luggage carrier with adjustable struts. Fig. 26 and Fig. Figure 27 shows detailed views of an alternative attachment of the wheel guard to the seat stay bridge and to the central structure using an angle piece. Detailed description of the drawings

[0061] Fig. Figure 1 shows an embodiment of a bicycle 1 in a perspective view, wherein only the components relevant to the invention are shown.

[0062] The bicycle 1 comprises a frame 100 with a down tube 101, a top tube 102, a head tube 103 and a seat tube 104.

[0063] The seat stays 105 and the chainstays 106 run to the dropout 111.

[0064] In this embodiment, the central structure 107 serves to accommodate a mid-drive motor and bottom bracket (not shown).

[0065] The rear wheel of bicycle 1 is equipped with a mudguard 200. A luggage carrier 300 is also mounted on the mudguard 200.

[0066] The mudguard 200 runs from the central structure 107 under the luggage carrier 300 to the rear of the bicycle 1.

[0067] The luggage carrier 300 is connected to the dropout 111 via front struts 301 and rear struts 302.

[0068] The struts 301 and 302 converge at a common attachment point at the dropout 101.

[0069] In this embodiment, the attachment point is located above the opening 108 for the wheel axle.

[0070] Since the luggage carrier 300 is connected to the wheel guard 200, the struts 301, 302 also serve to attach the wheel guard 200.

[0071] If no luggage carrier 300 is to be installed, the struts 301, 302 can also be directly connected to the mudguard 200 in a suitably modified design (not shown).

[0072] Fig. 2 is another perspective view of bicycle 1.

[0073] This perspective view shows that the mudguard 200 has an outer part 201 with an elongated hole 202. The elongated hole 202 allows the angular position of the mudguard relative to the seat stay bridge to be changed.

[0074] Fig. Figure 3 shows a detailed representation of the attachment points of the wheel guard 200 with the seat tube and seat stays hidden.

[0075] The wheel guard 200 is attached to the seat stay bridge 110 via a bracket 213.

[0076] The holder 213 can be moved along the elongated hole 202.

[0077] In the area of ​​the central structure, a holder 213 is also provided, which is connected in reverse position to the central structure 107, more precisely to a fastening extension of the central structure 107.

[0078] Fig. Figure 4 is a detailed view, with the outer part of the mudguard and the rear wheel now hidden.

[0079] In this embodiment, the wheel guard comprises two inner rails 210a, 210b.

[0080] An inner rail 210a is attached to the seat stay bridge 110 and extends under the luggage carrier 300.

[0081] The inner rail 210a can be made of metal or plastic. In particular, the inner rail 210a can be connected to the outer part of the wheel guard, e.g. by gluing or overmolding.

[0082] The inner rail 210a includes a groove 211, through which the angular position of the inner rail 210a on the seat stay bridge, and thus of the mudguard, can be changed. A screw 203, which engages through a through-hole in the seat stay bridge 110, is accessible from above and can be tightened to fix the mudguard.

[0083] The luggage carrier 300 comprises crossbars 303, which have a through hole through which a screw 304 is guided.

[0084] The screws 304 engage in a thread of the inner rail 210a and thus connect luggage carrier 300 and wheel guard.

[0085] For attaching the wheel guard to the central structure, a further, shorter inner rail 210b is provided.

[0086] In another embodiment, there may also be a single inner rail; in this embodiment, section 210b would transition into section 210a (not shown).

[0087] Fig. Figure 5 is a detailed view from below of the attachment point 112 on the central structure.

[0088] Rail 210b includes a T-shaped groove 211.

[0089] The inner rail 210b can include laterally projecting wings 212. These can serve as a stiffening element or be designed for connection with the outer part of the wheel guard, e.g. by clipping or overmolding.

[0090] The bracket 213 can be attached using the screw 203, which is accessible from below, and the wheel guard can be fixed at the same time.

[0091] In the perspective view according to Fig. 6 the inner rail is hidden.

[0092] The sliding element 220, which sits in the inner rail, is now visible. The sliding element 220 includes a thread 221 into which the screw 203 is inserted.

[0093] For this purpose, screw 203 is inserted into a through-hole 109 in the central structure. The holder 213 is clamped against the sliding element 220 via screw 203. This allows the wheel guard to be fixed in place.

[0094] Fig. Figure 7 shows a perspective view of the fastening components sliding element 220, holder 213 and screw 203.

[0095] The sliding element 220 comprises a plate with a projection 223 extending obliquely from the plate and having the thread 221.

[0096] The holder 213 is attached to the opposite side. This includes a through-hole 214. The holder 213 has an approximately triangular contour in side view.

[0097] The through hole 214 is positioned at an angle to the extension 223 and to the screw.

[0098] In the assembled state, the extension 223 of the sliding element 220 protrudes into the holder 213.

[0099] The contact surface 215 for the head of the screw 203 is conical, in particular calotte-shaped.

[0100] Fig. Figure 8 is a perspective view of the inner rail 210a.

[0101] In addition to the internal T-shaped groove 211, the inner rail includes two threaded holes 216, which serve for mounting the luggage carrier. The distance between the threaded holes 216 is fixed.

[0102] Fig. Figure 9 shows a detailed view of the attachment point 113 in the area of ​​the seat stay bridge 110. The holder 213 can be tightened against the sliding element via the screw 203, which is accessible from above, thus fixing the mudguard in its final mounting position on the seat stay bridge 110.

[0103] Fig. Figure 10 is a detailed view of the luggage rack area 300.

[0104] The luggage carrier 300 is connected to the inner rail (210a) of the mudguard via the screws 304, which are guided through the front strut 301 and the rear strut 302.

[0105] Fig. Figure 11 is a detailed representation of the dropout 111 in a rear view.

[0106] The struts of the luggage carrier each converge at a connecting piece 305.

[0107] The connecting piece 305 includes a through hole at its lower end for the screws 306.

[0108] The screws 306 are guided into the dropout 111 from the rear.

[0109] Depending on the wheel size for which the frame is designed, the mounting point for the screws 306 may be at different heights in relation to the opening 108 for the wheel axle.

[0110] This allows a single luggage carrier to be used universally for frames with different wheel sizes.

[0111] Fig. Figure 12 is a detailed side view of the dropout area.

[0112] This detailed view shows that an intermediate piece 308 is located between the connecting piece 305 and the dropout. The connecting piece 305 has a rounded, in particular semicircular, contact surface 307, which allows its angular position relative to the intermediate piece 308, and thus relative to the dropout, to be changed.

[0113] In the detailed view according to Fig. The connecting piece is hidden at 13.

[0114] It can be seen that the intermediate piece 308 also has a rounded, in particular semicircular, contact surface.

[0115] The head of screw 306 is also conical, in particular dome-shaped, and sits in a complementarily shaped recess of the connecting piece.

[0116] As in Fig. As shown in Figure 14, intermediate pieces 309 are also used for mounting the luggage carrier; these are arranged under the struts of the luggage carrier and sit on the mudguard.

[0117] The fastening screws are guided through the intermediate pieces 309 and lock into the threads 216 of the inner rail 210a.

[0118] Fig. Figure 15 is a detailed representation of such an intermediate piece 309.

[0119] The intermediate piece 309 comprises a semicircular contact surface 310 in side view and a through hole 311 for the screw 306.

[0120] As shown in the detailed view of the luggage rack from below, according to Fig. As shown in Figure 16, the struts 301, 302 of the luggage carrier 300 have a rounded, in particular semicircular, contour, which differs from the one shown in Figure 16. Fig. The intermediate piece (309) shown in section 15 allows for angle adjustment.

[0121] Fig. Figure 17 is a detailed view of frame 100.

[0122] A first attachment point 113 for a screw is provided on the seat stay bridge 110. The attachment point has a through hole which can encompass a rounded, in particular spherical, contact surface.

[0123] The fastening point 112 on the central structure 107 includes a through hole 109.

[0124] The rear of the dropout 111 has mounting points 114, which are designed as internal threads. The struts of the luggage carrier, or the connecting piece (305) of the struts, are attached here.

[0125] Fig. Figure 18 is a detailed view of attachment point 112 on the central structure.

[0126] A through-hole 109 is also provided at the fastening point 112. This can comprise a conical, in particular spherical, contact surface.

[0127] Fig. 19 is a cross-section in the area of ​​the inner rail 210a with the sliding element 220.

[0128] The inner rail 210a sits under the outer part 210 of the wheel guard.

[0129] The sliding element 220, which includes a thread 221, is seated in the T-shaped groove 211.

[0130] The screw 203 is guided through the holder 213 and locked in the thread 221.

[0131] The extension 223 with the thread 221 protrudes through the slot of the inner rail 210a and through the elongated hole 202 of the outer part 201.

[0132] In this way, the holder 213 can be clamped against the sliding element 220 and fixes the inner rail 210a together with the outer part 201 and thus the wheel guard.

[0133] As shown in the longitudinal section according to Fig. As shown in Figure 20, the screw is first guided through the holder 213 and then into the extension 223 of the sliding element 220.

[0134] The central axis of screw 203 runs at an angle α of 20 to 40° with respect to the wheel guard (tangent).

[0135] This allows screw 203 to be accessed from above in the mounting position on the seat stay bridge.

[0136] Conversely, in the mounting position on the central structure, screw 203 is accessible from below.

[0137] Referring to Fig. 20a will explain in more detail the determination of the angle α at attachment point 113 on the seat strut bridge and at attachment point 114 on the central structure.

[0138] The tangent of the wheel guard 200 runs perpendicular to a straight line leading to the wheel axis. The angle α is an acute angle between the central axis of the screw 203 and the corresponding angle of a tool used to tighten the screw 203.

[0139] Due to the acute angle, one screw 203 at mounting point 113 on the seat stay bridge is accessible from above and the other screw 203 at mounting point 114 on the central structure is accessible from below, without having to remove the rear wheel.

[0140] Fig. Figure 21 shows in a perspective view an alternative embodiment of a bicycle with a mudguard 200' and a luggage rack 300'.

[0141] In this embodiment, the connecting piece of the luggage carrier 300' is connected to the inside of the dropout 111'. The corresponding fastening screw is accessible from the outside.

[0142] As in Fig. As shown in detail in Figure 22, the mounting on the seat stay bridge 110' is also different. There is also a groove 211' in the mudguard.

[0143] An intermediate piece 309' is attached to the seat strut bridge 110' in a variable angle.

[0144] In contrast to the embodiment described above, here the fixing is done from the inside, i.e. a screw is inserted from below through the groove 211 of the wheel guard.

[0145] As shown in the detailed view according to Fig. As can be seen in Figure 23, the mounting at the attachment point of the central structure is also different. A knurled screw 312', which is accessible from the side, is used to fix the mudguard.

[0146] As shown in the detailed view according to Fig. As shown in Figure 24, the luggage rack 300' is mounted by means of screws 306' accessible from above.

[0147] Fig. Figure 25 shows another alternative embodiment of the invention.

[0148] In this embodiment of the invention, the luggage carrier 300'' comprises a telescopically extendable end piece 313'', by means of which it can be adapted to the mounting position on the dropout 111'.

[0149] As shown in the detailed view according to Fig. As shown in Figure 26, an angle piece 224'' is used for mounting on the seat strut bridge 110''.

[0150] The 224'' angle piece is connected to the wheel guard via a mounting screw, in particular to the inner rail of the wheel guard.

[0151] Another screw engages in the seat stay bridge 110''.

[0152] As in Fig. As shown in Figure 27, the wheel guard is also attached to the central structure by means of an angled piece 224''.

[0153] The invention simplified the installation of mudguards and optional luggage racks. Reference symbol list 1 bicycle 100 frames 101 Down tube 102 top tube 103 Head tube 104 seat tube 105 Seat stay 106 Chainstay 107 Middle School 108 Implementation of wheel axle 109 Through hole central section 110 seat stay bridge 111 breakdowns 112 Attachment point central structure 113 Mounting point seat stay bridge 114 Mounting point dropout 200 mudguards 201 Outdoor part 202 Slotted hole 203 screw 210a, b Inner rail 211 Nut 212 wings 213 holders 214 Through hole 215 m² of plant area 216 threads 220 sliding element 221 thread 223 continuation 224'' Angle piece 300 luggage racks 301 front strut 302 rear strut 303 Cross brace 304 screw 305 Connecting piece 306 screw 307 site area 308 Intermediate piece 309 Intermediate piece 310 m² of installation area 311 Through hole 312' knurled screw 313'' adjustable end piece

Claims

[1] Bicycle with a wheel guard, wherein the wheel guard has a groove in which a sliding element connected to the frame is slidably arranged, wherein the sliding element can be fixed in the groove by tightening a locking device, in particular a screw, characterized by that the groove is T-shaped, with an open end of the T-shaped profile of the groove pointing outwards. [2] Bicycle according to the preceding claim, characterized by that the mudguard can be fixed to at least one seat stay bridge using the sliding element. [3] Bicycle according to one of the preceding claims, characterized by that the wheel guard includes an inner rail in which the groove is arranged. [4] Bicycle according to any of the preceding claims, characterized by that the safety device is accessible from above or below without removing the wheel. [5] Bicycle according to any of the preceding claims, characterized bythat a central axis of the securing device is aligned at an angle α of 15-60°, preferably of 20-40°, to the wheel guard. [6] Bicycle according to one of the preceding claims, characterized by that the locking device engages in a holder which can be moved towards the sliding element by means of the locking device. [7] Bicycle according to one of the preceding claims, characterized by that the securing device includes a head with a conical contact surface. [8] Bicycle according to one of the preceding claims, further comprising a luggage carrier which is attached to the mudguard, in particular to the inner rail of the mudguard. [9] Bicycle according to the preceding claim, characterized by that the luggage rack is connected to the dropout of the bicycle via struts. [10] Mudguards and / or luggage carriers designed for a bicycle according to one of the preceding claims.

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