NL2027820B1 - Bicycle Front Fork Cabling - Google Patents

Bicycle Front Fork Cabling Download PDF

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Publication number
NL2027820B1
NL2027820B1 NL2027820A NL2027820A NL2027820B1 NL 2027820 B1 NL2027820 B1 NL 2027820B1 NL 2027820 A NL2027820 A NL 2027820A NL 2027820 A NL2027820 A NL 2027820A NL 2027820 B1 NL2027820 B1 NL 2027820B1
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NL
Netherlands
Prior art keywords
front fork
head tube
opening
aperture
cable
Prior art date
Application number
NL2027820A
Other languages
Dutch (nl)
Inventor
Henning Michiel
Hubertus Henricus Maria Van Spijk Leonardus
Matthijssen Martijn
Original Assignee
Formont B V
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Formont B V filed Critical Formont B V
Priority to NL2027820A priority Critical patent/NL2027820B1/en
Application granted granted Critical
Publication of NL2027820B1 publication Critical patent/NL2027820B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J11/00—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps
    • B62J11/10—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps for mechanical cables, hoses, pipes or electric wires, e.g. cable guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/32—Steering heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/02—Front wheel forks or equivalent, e.g. single tine

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

A front fork assembly for routing at least one cable (C) therein, comprising a head tube (2) having a head tube lower part (21) and a front fork (3) having a front fork upper part (31). The front fork assembly further comprises a head tube aperture (22) provided in the head tube lower part (21), and a front fork aperture (33) provided in the front fork upper part (31), wherein the head tube aperture (22) and the front fork aperture (33) are in a plane substantially perpendicularto the front fork rotational axis (A) and are positioned to form a passageway (9) configured to pass the at least one cable (C) therethrough at a predetermined radial distance Rp from a front fork rotational axis 10 (A).

Description

P6096798NL 1 Bicycle Front Fork Cabling Field of the invention The present invention relates to a front fork assembly for routing at least one cable therein, comprising a head tube having a head tube lower part, and a front fork having a front fork upper part, wherein the head tube lower part and the front fork upper part are arranged to rotationally couple the front fork to the head tube around a front fork rotational axis.
Background art Chinese utility model CN208616132U discloses a bicycle head, including a frame, a vertical tube and a front fork.
The frame includes a head tube, and the front fork includes a steering tube and is inserted into the vertical tube, so that the vertical tube is coupled to the steering tube.
In an embodiment, a spacer is disposed between the vertical tube and the head tube, wherein the spacer has at least one second through hole to allow a cable to pass therein.
Chinese utility model CN210083445U discloses an inner wiring frame of a bicycle, comprising a main frame, a front fork, and a handlebar.
The main frame includes a head pipe and a hollow frame lower pipe.
A wiring cavity is formed in the head pipe, and the wiring cavity communicates with the cavity in the lower pipe of the frame.
The front fork includes a fork body and a shaft tube; the inside of the fork body is hollow and communicates with the inside of the shaft tube; the side wall of the shaft tube has a wire entry hole, and the fork body is provided with a wire outlet hole.
Summary of the invention The present invention seeks to provide a front fork assembly for routing at least one cable therein, where the cable routing is compact and carried out in a nice and neat fashion.
According to the present invention, a front fork assembly as defined above is provided, further comprising a head tube aperture provided in the head tube lower part, a front fork aperture provided in the front fork upper part, wherein the head tube aperture and the front fork aperture are in a plane substantially perpendicular to the front fork rotational axis, and are positioned to form a passageway configured to pass the at least one cable therethrough at a predetermined radial distance from the front fork rotational axis.
Such a front fork assembly may allow for neat and compact cable routing therein, with as- minimal-as-possible interference with any other parts of the front fork assembly.
Short description of drawings The present invention will be discussed in more detail below, with reference to the attached drawings, in which Fig. 1 shows a cross-sectional view of the front fork assembly, according to an embodiment of the present invention; Fig. 2 shows a cross-sectional view of a part of the front fork, according to a further embodiment of the present invention, and
P6096798NL 2 Fig. 3 shows a top view of a part of the front fork, according to an even further embodiment of the present invention. Description of embodiments In general, cable routing, as found in everyday bicycles, often have the cables exposed to the external environment. For example, the front-brake wiring system typically has the brake cable exposed, running from the handlebar to the brake mechanism, e.g. a disc brake or rim brake, on the front wheel. This is generally avoided, for example, to prevent any wear-and-tear issues of the cable due to (prolonged) exposure to the external environment, for aerodynamics, and for aesthetical purposes, i.e. for a more aesthetically appealing and sleeker look for the bicycle design. As a result, state-of-the-art bicycles tend to route the cables within the inner cavity/chamber of the bicycle frame. For example, with reference to the above, the front-brake wiring system may have a brake cable running through the inner cavity of the handlebar, and through the inner cavity of the head tube to the brake mechanism on the front wheel.
Although the majority of the cable length is prevented from being exposed to the external environment, there are disadvantages to this approach. In particular, running cables through the bicycle frame may interfere with e.g. bearings or the steering tube. Furthermore, excessive steering from the cyclist may result in wear-and-tear and overstretching of the cables, which may increase the chances of damage thereof.
In this regard, there is a need to provide improve the cable routing found in bicycles that would overcome these drawbacks, yet of easy integration and assembly for e.g. manufacturing purposes. In particular, with the development of electrical bicycles (e-bikes), the complexity of cable routing increases due to the increased amount of cables in an e-bike.
The present invention embodiments provide a (bicycle) front fork assembly allowing neat and compact cable routing between the head tube and front fork of a bicycle without significant interference from any other parts of the bicycle e.g. bearings, yet, the configuration thereof is compact and easy-to-assemble.
Fig. 1 shows a cross-sectional view of a front fork assembly for routing at least one cable C therein, according to an embodiment of the present invention. The front fork assembly comprises a head tube 2 having a head tube lower part 21, a front fork 3 having a front fork upper part 31, wherein the head tube lower part 21 and the front fork upper part 31 are arranged to rotationally couple the front fork 3 to the head tube 2 around a front fork rotational axis A. In other wording, the arrangement of the head tube lower part 21 and the front fork upper part 31 is such that the front fork 3 may smoothly rotate about the front fork rotational axis A. As shown in Fig. 1, the front fork 3 may comprise a steering tube 38 inserted inside the (hollow) head tube 2, wherein an outer diameter of the steering tube 38 is smaller than an inner diameter of the head tube 2. The head tube lower part 21 may be connected to a down tube 4, as shown in Fig. 1.
For the present invention embodiments described herein, and with reference to Fig. 1, it is noted that the head tube lower part 21 comprises the bottom portion of the head tube 2, and the front fork upper part 31 comprises the top portion of the front fork 3, including the bottom part of the 40 fork tube 38.
P6096798NL 3 In the embodiment shown in Fig. 1, the front fork assembly further comprises a head tube aperture 22 provided in the head tube lower part 21, and a front fork aperture 33 provided in the front fork upper part 31, wherein the head tube aperture 22 and the front fork aperture 33 are in a plane substantially perpendicular to the front fork rotational axis A. In this embodiment, each of the head tube aperture 22 and the front fork aperture 33 can be thought as (small) openings provided in the head tube lower part 21 and front fork upper part 31, respectively, wherein the openings have a (surface) area having a length and width, in the plane substantially perpendicular to the front fork rotational axis A. As shown in Fig. 1, a part of the head tube aperture 22 may be provided on a bottom surface of the head tube lower part 21, and a part of the front fork aperture 33 may be provided on a top surface of the front fork upper part 31.
Further, in this embodiment, the head tube aperture 22 and front fork aperture 33 are positioned to form a passageway 9 configured to pass the at least one cable C therethrough, as shown in Fig. 1. The passageway 9 may be thought of as a ‘virtual’ hollow channel, wherein the dimensions thereof is dependent on the area (i.e. length and width) of the head tube aperture 22 and the front fork aperture 33, and the distance in-between. As shown in Fig. 1, the passageway 9 is provided at a connecting interface between the head tube lower part 21 and the front fork upper part 31.
Considering this, the passageway 9, as formed by the positions of the head tube aperture 22 and front fork aperture 33, is arranged to receive at least one cable C therein, wherein the at least one cable C may comprise any type of cable, for example, thick motor cabling, brake cabling, headlight cabling and/or non-electric cabling (e.g. a Bowden cable or hydraulic hose). As shown in Fig. 1, the at least one cable C may be passed i.e. routed through the passageway 9 at/through the point of rotation between the head tube lower part 21 and front fork upper part 31, i.e. the connecting interface as described above.
Furthermore, the passageway 9 is at a predetermined radial distance Ry from the front fork rotational axis A, as shown in the embodiment of Fig. 1. This allows the at least one cable C to be passed through the passageway 9 at a sufficient distance away from the (rotational) arrangement between the head tube lower part 21 and the front fork upper part 31 and the components therewith e.g. bearings and/or the steering tube 38. This reduces the chance of any issues relating to e.g. wear-and-tear interference and/or friction with the at least one cable C.
In more general wording, the present invention embodiments, as described herein, relate to a front fork assembly for routing at least one cable C therein, comprising a head tube 2 having a head tube lower part 21, a front fork 3 having a front fork upper part 31, wherein the head tube lower part 21 and front fork upper part 31 are arranged to rotationally couple the front fork 3 to the head tube 2 around a front fork rotational axis A, the front fork assembly further comprising a head tube aperture 22 provided in the head tube lower part 21, a front fork aperture 33 provided in the front fork upper part 31, wherein the head tube aperture 22 and the front fork aperture 33 are in a plane substantially perpendicular to the front fork rotational axis A, and are positioned to form a 40 passageway 9 configured to pass the at least one cable C therethrough at a predetermined radial
P6096798NL 4 distance Rp from the front fork rotational axis A. This provides a front fork assembly allowing neat and compact (internal) cable routing within and between the head tube 2 and front fork 3 of a bicycle, with as-minimal-as-possible interference from any other parts of the bicycle e.g. bearings and/or steering tube 38. This reduces the chances of damage to the cables, e.g. due to wear-and-tear issues and/or friction, yet, the configuration thereof is simple and easy-to0-assemble.
In an embodiment shown in Fig. 1, at least a part of the head tube aperture 22 is covering at least a part of the front fork aperture 33. In other words, the head tube aperture 22 is at least partly overlapping with the front fork aperture 33. This may allow the at least one cable C to be passed ‘straight through’ the head tube aperture 22 and front fork aperture 33 without any substantive kinks and/or bending of the at least one cable C, further reducing the chances of damage to the at least one cable C.
As a non-limiting example, if the head tube aperture 22 is positioned such that it is fully covering the frame front fork aperture 33, i.e. a ‘neutral position’ between the head tube 2 and front fork 3, this would form a passageway 9 with as-large-as-possible area to pass the at least one cable C therethrough, allowing even nicer and better compact cable routing.
In a further embodiment shown in Fig. 1, the head tube aperture 22 is provided in a head tube rear portion 24 of the head tube 2, and the front fork aperture 33 is provided in a front fork rear portion 3a of the front fork 3. That is, as shown in Fig. 1, the passageway 9 is provided on the ‘frame-side’ of the front fork assembly, in the gutter location behind the steering tube 38. As a result, this provides a convenient location to provide a passageway 9, wherein the at least one cable C may be routed from the front fork 3 through to e.g. the down tube 4 via the head tube 2, with as- minimal-as-possible distance and interference; if the passageway 9 were provided in front of the steering tube 38, the at least one cable C may have be routed e.g. around the steering pin 38 to thread through to e.g. the down tube 4, thereby causing inconvenience.
In yet a further embodiment shown in Fig. 1, the at least one cable C is extending at least between the head tube lower part 21 and the front fork upper part 31. That is, the at least one cable C is routed from at least the front fork upper part 31, through the passageway 9, to at least the head tube lower part 21.
As an exemplary advantageous characteristic of this embodiment, the following non-limiting example is described. To provide power to a front light 39 (as shown in Fig. 1), which is not powered by external batteries, provided at the front of the front fork 3, an internal battery provided e.g. inside the down tube 4 may be used to supply power to the front light 39. As a result, cabling may be needed to connect the input of the front light 39 to the output of the internal battery, and, thereby, at least one cable C being routed between the front fork 3 and the down tube 4.
As shown in Fig. 1, the at least one cable C may be nicely routed from the front light 39 (below the steering pin 38), through the front fork upper part 31 to the head tube lower part 21, via the passageway 9 as formed by the positions of the front fork aperture 33 and head tube aperture
22. Thereafter, the at least one cable C may be routed from the head tube lower part 21, through to the down tube 4, via e.g. a hollow down tube aperture/channel 44 provided in the down tube 4, 40 wherein the down tube aperture/channel 44 is connected to the head tube aperture 22.
P6096798NL The cable routing, in this specific example, is carried out without any part of the at least one cable C being exposed to the external environment (i.e. the cable routing is done internally within the bicycle itself), yet is compact, neat, and with as-minimal-as-possible interference to any other parts of the bicycle.
5 It is noteworthy to re-iterate that the specific example described above is an exemplary example, and other implementations are possible. For example, the at least one cable C may extend between an internal battery inside the down-tube 4 and a motor provided on a front wheel connected to the front fork 3.
In an exemplary embodiment, the predetermined radial distance Rp is at least 56 mm e.g.
60 mm. By having a predetermined radial distance Rp of at least 56 mm e.g. 60 mm, the at least one able C is passed through the passageway 9 with good, sufficient distance away from the front fork rotational axis A, reducing the interference between at least one cable C and e.g. the bearing rings involved in the rotational coupling between the head tube 2 and front fork 3, or the steering tube 38.
Fig. 2 shows a cross-sectional view of a part of the front fork 3 according to an embodiment of the present invention. Elements with the same function as in the exemplary embodiment shown in Fig. 1 are indicated by the same reference numerals.
As shown in Fig. 2, the front fork upper part 31 may comprise a non-circular cross-section. Since the front fork 3 is rotationally coupled to the head tube 2 around the front fork rotational axis A, when steering in any direction, the front fork 3 is rotationally displaced, and, owing to the non- circular cross-section, a large part of the front fork aperture 33 may be exposed to the external environment. This may provide a potential hazard, whereby an object, for example a small tree branch or dirt, may fall into the exposed part of the front fork aperture 33, refraining the user from steering back.
From this perspective, in an embodiment shown in Fig. 2, the front fork assembly further comprises a protection layer 35 covering at least a part of the front fork aperture 33. As shown in the embodiment in Fig. 2, the protection layer 35 may be applied over the (surface) area of the front fork aperture 33 on the top surface of the front fork upper part 31. By sufficiently covering the front fork aperture 33, the protection layer 35 may be used to protect the front fork aperture 33, and deflect any objects falling therein.
In a specific embodiment shown in Fig. 2, the protection layer 35 comprises a elastomer material. Not only is the elastomer material physically strong enough to deflect objects falling into the front fork aperture 33, but, since the at least one cable C is passed through the front fork aperture 33, the elastomer material also has soft properties and edges to protect the at least one cable C from scratches and wear-and-tear issues due to e.g. sharp edges of the front fork aperture
33. The elastomer material may comprise, for example, a silicone and/or rubber material, or any alternatives thereof (with elastomer and flexible properties) known to the skilled person.
In a further specific embodiment shown in Fig. 2, the protection layer 35 comprises a one or more narrow slits 35a, 35b, wherein the one or narrow slits 35a, 35b extend along a length and/or 40 width thereof. In Fig. 2, half ofthe front fork aperture 33, protection layer 35 and one or more narrow
P6096798NL 6 slits 35a, 35b are shown in the cross-sectional view. As described herein, the front fork aperture 33 has a (surface) area, with a length and width, in a plane perpendicular to the front fork rotational axis A. Thus, as shown in (the half-view of) Fig. 2, one narrow slit 35a of the one or more narrow slits 35a, 35b may substantially extend along a length of the protection layer 35, wherein the narrow slit 35a is positioned in the ‘width middle’ of the protection layer 35. In addition, in view of Fig. 2, another narrow slit 35b of the one or more narrow slits 35a, 35b may substantially extend along width of the protection layer 35, and positioned in the ‘length middle’ of the protection layer 35. By having one or more narrow slits 35a, 35b, this allows the at least one cable C to easily pass through the front fork aperture 33, whereby the at least one cable C may move/displace along a length and/or width thereof during steering, yet, sufficiently cover the area of the front fork aperture 33 to protect objects falling therein. In yet another specific embodiment shown in Fig. 2, the front fork assembly further comprises a plate layer 36 provided on a top surface of the protection layer 35. The plate layer 36 is arranged to hold/keep the protection layer 35 in place, and prevent any friction between the protection layer 35 and e.g. the bottom surface of the head tube lower part 21 during steering. As shown in Fig. 2, the plate layer 36 is placed on top of the protection layer 35 and may be fixed to at least a part of the top surface of the front fork upper part 31 using e.g. a plurality of screws 36a, to keep a downward force on the protection layer 35 and keep it in place. Furthermore, the plate layer 36 may also be provided around the sides of the protection layer 35, as shown in Fig. 2. The plate layer 36 may comprise any robust, strong material, for example, (high-density) plastic or metal.
It is noted that for the embodiments relating to the protection layer 35 and/or plate layer 36 described herein, the temperature of the external environment should not influence the technical benefits thereof, i.e. the technical effects are not significantly subject to and not affected by e.g.
shrinking, crimping, jamming in a wide temperature range, for example, between -60 degrees Celsius and 40 degrees Celsius.
It is further noted that although embodiments relating to the protection layer 35 and plate layer 36 have only been described for the front fork aperture 33 thus far, they may also be utilised for the head tube aperture 22 in a similar fashion. For example, the protection layer 35 may also be placed on the bottom surface of the head tube lower part 21 to cover at least a part of the head tube aperture 22.
In an even further embodiment, the head tube aperture 22 and front fork aperture 33 have a congruent shape, i.e. the head tube aperture 22 and front fork aperture 33 have the same shape and size. By having the congruent shape, this allows the passageway 9, as formed by the positions of the head tube aperture 22 and front fork aperture 33, to have a nice, regular shape, providing a good and compact channel in order to pass the at least one cable C therethrough.
To that end, Fig. 3 shows a top view of a part of the front fork 3, according to an embodiment of the present invention. Elements with the same function as in the exemplary embodiment shown in Figs. 1 and 2 are indicated by the same reference numerals. In this embodiment, the congruent 40 shape comprises an arc-shaped opening spanning a predetermined arc angle 8 around the front
P6096798NL 7 fork rotational axis A (as shown in Fig. 3). From this perspective, the curvature of the arc-shaped opening reflects the rotational arrangement between the head tube 2 and the front fork 3.
To elaborate, it has been described herein that the passageway 9, as formed by the positions of the head tube aperture 22 and the front fork aperture 33, is arranged to receive at least one cable C therethrough, yet, the front fork 3 is rotationally coupled to the head tube 2 around the front fork rotational axis A. In this context, the at least one cable C is thereby susceptible to pressing against the edges of the head tube aperture 22 and front fork aperture 33.
Thus, when the front fork 3 rotates around the front fork rotational axis A, the curvature of the arc-shaped aperture is able to reflect this rotation. This reduces the changes of damage to the at least one cable C due to e.g. overstretching and/or wear-and-tear.
The arc-shaped opening spans a sufficiently large predetermined arc angle 6 around the front fork rotational axis A, allowing a large degree of rotation of the front fork 3 without damaging the at least one cable C. To that end, in an further embodiment, the predetermined arc angle 8 is less than 65 degrees e.g. 50 degrees, providing a comfortable range for rotation of the front fork 3, for example, finite rotation of +/- 65 degrees from a neutral position to provide a full steering range of 130 degrees suitable for everyday cycling.
It is noted that the embodiments, relating the arc-shaped opening shown in Fig. 2 and described thus far, present a non-limiting implementation, and that the congruent shape may comprise any shape, e.g. circle, rectangular, stadium, assuming the (operational) principle of the present invention embodiments described herein may be carried out.
Additionally, in certain embodiments, each of the head tube aperture 22 and front fork aperture 33 have a primary width W of at least 10 mm e.g. 12 mm, as shown for the front fork aperture 33 in Fig. 3. In view of this, the passageway 9, as formed by the positions of the head tube aperture 22 and front fork aperture 33, may also a width of at least 10 mm, e.g. 12 mm. In this respect, this may allow a variety of cables to comfortably pass through the passageway 9, for example, a 7.0 mm motor cable and 3.0 mm headlight cable.
In this regard, the at least one cable C may be included in a wire connector. To allow for this, in a further exemplary embodiment shown in Fig. 3, each of the head tube aperture 22 and front fork aperture 33 comprise a secondary width opening 33a having an expanded width Weo larger than the primary width W, i.e. the secondary width opening 33a is wider than the ‘normal’ width. For example, if the ‘regular’ primary width W of the front fork aperture 33 is 10 mm, then the secondary width opening 33a may have an expanded width Weo of 16 mm.
As described above, the secondary width opening 33a is arranged for assembly purposes e.g. wire connectors. Typically, wire connectors are wider than a single cable, and, by presence of the secondary width opening 33a having an expanded width Weo, this allows the wire connector to be passed therethrough (and thus also through the passageway 9) in an easy and controlled manner.
From this point of view, in an even further exemplary embodiment shown in Fig. 3, the secondary width opening 33a is provided in a central part of the head tube aperture 22 and front 40 fork aperture 33. As described herein, by allowing e.g. the wire connector to pass through the
P6096798NL 8 secondary width opening 334, this also allows the wire connector to pass through the central part of the head tube aperture 22 and front fork aperture 33, and, thus, away from the edges thereof.
The present invention embodiments, which have been described here with reference to the drawings, can also be summarised as the following numbered and interdependent embodiment clauses: Embodiment 1. A front fork assembly for routing at least one cable (C) therein, comprising a head tube (2) having a head tube lower part (21), a front fork (3) having a front fork upper part (31), wherein the head tube lower part (21) and the front fork upper part (31) are arranged to rotationally couple the front fork (3) to the head tube (2) around a front fork rotational axis (A), the front fork assembly further comprising a head tube aperture (22) provided in the head tube lower part (21) a front fork aperture (33) provided in the front fork upper part (31), wherein the head tube aperture (22) and the front fork aperture (33) are in a plane substantially perpendicular to the front fork rotational axis (A), and are positioned to form a passageway (9) configured to pass the at least one cable (C) therethrough at a predetermined radial distance Rp from the front fork rotational axis (A). Embodiment 2. The front fork assembly according to embodiment 1, wherein at least a part of the head tube aperture (22) is covering at least a part of the front fork aperture (33). Embodiment 3. The front fork assembly according to embodiment 1 or 2, wherein the head tube aperture (22) is provided in a head tube rear portion (2a) of the head tube (2), and the front fork aperture (33) is provided in a front fork rear portion (3a) of the front fork (3). Embodiment 4. The front fork assembly according to any one of embodiments 1-3, wherein the at least one cable (C) is extending at least between the head tube lower part (21) and the front fork upper part (31). Embodiment 5. The front fork assembly according to any one of embodiments 1-4, further comprising a protection layer (35) covering at least a part of the front fork aperture (33). Embodiment 6. The front fork assembly according to embodiment 5, wherein the protection layer (35) comprises a elastomer material.
Embodiment 7. The front fork assembly according to embodiment 5 or 6, wherein the protection layer (35) comprises one or more narrow slits (35a, 35b). Embodiment 8. The front fork assembly according to any one of embodiments 5-7, further comprising a plate layer (36) provided on a top surface of the protection layer (35). Embodiment 9. The front fork assembly according to any one of embodiments 1-8, wherein the head tube aperture (22) and front fork aperture (33) have a congruent shape.
Embodiment 10. The front fork assembly according to embodiment 9, wherein the congruent shape comprises an arc-shaped opening spanning a predetermined arc angle (8) around the front fork rotational axis (A). Embodiment 11. The front fork assembly according to embodiment 10, wherein the predetermined arc angle (0) is less than 65 degrees e.g. 50 degrees.
P6096798NL 9 Embodiment 12. The front fork assembly according to any one of embodiments 1-11, wherein each of the head tube aperture (22) and front fork aperture (33) have a primary width W of at least 10 mm e.g. 12 mm. Embodiment 13. The front fork assembly according to embodiment 12, wherein each of the head tube aperture {22) and front fork aperture (33) comprise a secondary width opening (33a) having an expanded width Weo larger than the primary width W. Embodiment 14. The front fork assembly according to embodiment 12 or 13, wherein the secondary width opening (33a) is provided in a central part of the head tube aperture (22) and front fork aperture (33). Embodiment 15. The front fork assembly according to any one of embodiments 1-15, wherein the predetermined radial distance Rp is at least 56 mm e.g. 60 mm.
The present invention has been described above with reference to a number of exemplary embodiments as shown in the drawings. Modifications and alternative implementations of some parts or elements are possible, and are included in the scope of protection as defined in the appended claims

Claims (15)

P6096798NL 10 ConclusiesP6096798EN 10 Conclusions 1. Een voorvorksamenstel voor het daarin geleiden van ten minste één kabel (C), omvattende: een balhoofdbuis (2) met een benedendeel van de balhoofdbuis (21), een voorvork (3) met een bovendeel (31) van de voorvork, waarbij het benedendeel van de balhoofdbuis (21) en het bovendeel (31) van de voorvork zijn opgesteld om de voorvork (3) roterend te koppelen aan de balhoofdbuis (2) rond een rotatie-as (A) van de voorvork, waarbij het voorvorksamenstel verder omvat; een balhoofdbuisopening (22) voorzien in het benedendeel van de balhoofdbuis (21), een voorvorkopening (33) voorzien in het bovendeel (31) van de voorvork, waarbij de balhoofdbuisopening (22) en de voorvorkopening (33) zich in een vlak bevinden dat in hoofdzaak loodrecht staat op de rotatieas (A) van de voorvork, en zijn gepositioneerd om een doorgang (9) te vormen die is geconfigureerd om de ten minste ene kabel daardoorheen door te laten (C) op een vooraf bepaalde radiale afstand Rp vanaf de rotatieas (A) van de voorvork.A front fork assembly for guiding at least one cable (C) therein, comprising: a head tube (2) with a lower part of the head tube (21), a front fork (3) with an upper part (31) of the front fork, wherein the lower part of the head tube (21) and the upper part (31) of the front fork are arranged to rotationally couple the front fork (3) to the head tube (2) about an axis of rotation (A) of the front fork, the front fork assembly further includes; a head tube opening (22) provided in the lower part of the head tube (21), a front fork opening (33) provided in the upper part (31) of the front fork, the head tube opening (22) and the front fork opening (33) being in a plane which substantially perpendicular to the rotational axis (A) of the front fork, and are positioned to form a passageway (9) configured to pass the at least one cable therethrough (C) at a predetermined radial distance Rp from the rotation axis (A) of the front fork. 2. Voorvorksamenstel volgens conclusie 1, waarbij ten minste een deel van de balhoofdbuisopening (22) ten minste een deel van de voorvorkopening (33) beslaat.The front fork assembly of claim 1, wherein at least a portion of the head tube opening (22) occupies at least a portion of the front fork opening (33). 3. Voorvorksamenstel volgens conclusie 1 of 2, waarbij de balhoofdbuisopening {22) is voorzien in een balhoofdbuisachtergedeelte (2a) van de balhoofdbuis (2), en de voorvorkopening (33) is voorzien in een voorvork-achtergedeelte (3a) van de voorvork (3).The front fork assembly according to claim 1 or 2, wherein the head tube opening {22) is provided in a head tube rear portion (2a) of the head tube (2), and the front fork opening (33) is provided in a front fork rear portion (3a) of the front fork ( 3). 4. Voorvorksamenstel volgens een van de conclusies 1-3, waarbij de ten minste ene kabel (C) zich ten minste tussen het benedendeel van de balhoofdbuis (21) en het bovendeel (31) van de voorvork uitstrekt.Front fork assembly according to any one of claims 1 to 3, wherein the at least one cable (C) extends at least between the lower part of the head tube (21) and the upper part (31) of the front fork. 5. Voorvorksamenstel volgens een van de conclusies 1-4, verder omvattende een beschermingslaag (35) die ten minste een deel van de voorvorkopening (33) bedekt.The front fork assembly of any one of claims 1-4, further comprising a protective layer (35) covering at least a portion of the front fork opening (33). 6. Voorvorksamenstel volgens conclusie 5, waarbij de beschermingslaag (35) een elastomeer materiaal omvat.The front fork assembly of claim 5, wherein the protective layer (35) comprises an elastomeric material. 7. Voorvorksamenstel volgens conclusie 5 of 8, waarbij de beschermingslaag (35) één of meer smalle sleuven (35a, 35b) omvat.A front fork assembly according to claim 5 or 8, wherein the protective layer (35) comprises one or more narrow slots (35a, 35b). 8. Voorvorksamenstel volgens een van de conclusies 5-7, verder omvattende een 40 bekledingslaag (36) die is aangebracht op een bovenoppervlak van de beschermingslaag (35).The front fork assembly of any one of claims 5 to 7, further comprising a coating layer (36) applied to an upper surface of the protective layer (35). P6096798NL 11P6096798EN 11 9. Voorvorksamenstel volgens een van de conclusies 1-8, waarbij de balhoofdbuisopening (22) en voorvorkopening (33) een congruente vorm hebben.A front fork assembly according to any one of claims 1-8, wherein the head tube opening (22) and front fork opening (33) have a congruent shape. 10. Voorvorksamenstel volgens conclusie 9, waarbij de congruente vorm een boogvormige opening omvat die een vooraf bepaalde booghoek (98) om de rotatie-as (A) van de voorvork omspant.The front fork assembly of claim 9, wherein the congruent shape includes an arcuate opening that spans a predetermined arc angle (98) about the rotational axis (A) of the front fork. 11. Voorvorksamenstel volgens conclusie 10, waarbij de vooraf bepaalde booghoek (9) kleiner is dan 65 graden, b.v. 50 graden.The front fork assembly according to claim 10, wherein the predetermined arc angle (9) is less than 65 degrees, e.g. 50 degrees. 12. Voorvorksamenstel volgens een van de conclusies 1-11, waarbij elk van de balhoofdbuisopening (22) en de voorvorkopening (33) een primaire breedte W hebben van tenminste 10 mm, b.v. 12 mm.A front fork assembly according to any one of claims 1-11, wherein each of the head tube opening (22) and the front fork opening (33) have a primary width W of at least 10 mm, e.g. 12mm. 13. Voorvorksamenstel volgens conclusie 12, waarbij elk van de balhoofdbuisopening (22) en voorvorkopening (33) een secundaire breedteopening (33a) omvat met een uitgezette breedte WeEo groter dan de primaire breedte W.The front fork assembly of claim 12, wherein each of the head tube opening (22) and front fork opening (33) includes a secondary width opening (33a) having an expanded width WeEo greater than the primary width W. 14. Voorvorksamenstel volgens conclusie 12 of 13, waarbij de secundaire breedteopening (33a) is voorzien in een centraal deel van de balhoofdbuisopening (22) en de voorvorkopening (33).The front fork assembly of claim 12 or 13, wherein the secondary width opening (33a) is provided in a central portion of the head tube opening (22) and the front fork opening (33). 15. Voorvorksamenstel volgens een van de conclusies 1-15, waarbij de vooraf bepaalde radiale afstand Rp tenminste 56 mm bedraagt, b.v. 80 mm.A front fork assembly according to any one of claims 1-15, wherein the predetermined radial distance Rp is at least 56 mm, e.g. 80mm.
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Citations (5)

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US7891687B2 (en) * 2004-12-10 2011-02-22 Magna Marque International Inc. Method to conceal bicycle control cables within the handlebars, stem and frame
FR3020033A1 (en) * 2014-04-18 2015-10-23 Look Cycle Int CYCLE ASSEMBLY
WO2015180756A1 (en) * 2014-05-27 2015-12-03 Bmc Switzerland Ag Bicycle fork, bicycle frame and bicycle
CN208616132U (en) 2018-03-07 2019-03-19 天心工业股份有限公司 Bicycle head
CN210083445U (en) 2019-06-19 2020-02-18 常州洪记两轮智能交通工具有限公司 Internal wiring frame of bicycle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7891687B2 (en) * 2004-12-10 2011-02-22 Magna Marque International Inc. Method to conceal bicycle control cables within the handlebars, stem and frame
FR3020033A1 (en) * 2014-04-18 2015-10-23 Look Cycle Int CYCLE ASSEMBLY
WO2015180756A1 (en) * 2014-05-27 2015-12-03 Bmc Switzerland Ag Bicycle fork, bicycle frame and bicycle
CN208616132U (en) 2018-03-07 2019-03-19 天心工业股份有限公司 Bicycle head
CN210083445U (en) 2019-06-19 2020-02-18 常州洪记两轮智能交通工具有限公司 Internal wiring frame of bicycle

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