专利摘要:
Arrangement of a frame (1) for a bicycle (2), a bicycle handlebar (3), a bicycle fork (3) rotatably connected bicycle fork (4) and a braking device (5), which arranged on the bicycle fork (4) brake system (6), at least one on the bicycle handlebar (3) arranged brake lever (7) and at least one of the brake system (6) to at least one brake lever (7) leading brake cable (8), wherein the brake cable (8) of the bicycle fork (4 ) is guided over a radial opening (9) in the bicycle fork (4) in the frame (1).
公开号:AT520501A1
申请号:T50861/2017
申请日:2017-10-06
公开日:2019-04-15
发明作者:
申请人:Airstreeem Com Gmbh;
IPC主号:
专利说明:

The invention relates to an arrangement of a frame for a bicycle, a bicycle handlebar, a bicycle fork connected in a rotationally fixed manner to the bicycle handlebar and a braking device which has a brake system arranged on the bicycle fork, at least one brake lever arranged on the bicycle handlebar and at least one from the brake system to at least one brake lever leading brake cable. In addition, the invention relates to a bicycle, in particular a triathlon bicycle, with such an arrangement.
Higher quality bicycles and racing bikes are not only used in the professional sector, but also in the amateur sector. Above all, the bikes are being adapted more and more specifically to the respective needs. Bicycles are also increasingly used, in which the handlebars can be changed as required. For example, there are special bicycle handlebars that are used in time trial or triathlon.
An example of such a bicycle handlebar is shown in US 2010/0213684 A1. This document shows how the individual cables (for braking or switching) run along the handlebar or through the various components of the frame. The cable for the front brake leads from a brake lever through a handlebar into the stem ("stem") and from there directly to the front brake. The sharp kink of the brake cable from the handlebar to the stem is structurally disadvantageous.
A similar disadvantage is also present in WO 2017/144105 A1, in which the brake cable leads axially from the stem into the steerer tube. Here the redirection is relatively complicated and complex, and many components are required. In addition, changing the bicycle handlebar is relatively complex.
EP 2 551 179 B1 discloses a bicycle frame with a head tube and a double-bridge bicycle fork. Here, the activation elements (shift or brake cable) coming from the triathlon handlebar, not shown in full, first lead into the stem and from there into the head tube. In the head tube, part / 20 of the activation elements branches off through a radial opening into the down tube of the bicycle frame. The brake cable for the front brake is guided along the head tube and axially through the fork crown of the fork to the brake unit. The brake unit is integrated in the fork crown and fork legs. Due to the steerer tube in front of the head tube, there are no activation elements.
The object of the present invention is to provide an arrangement which is alternative or improved to the prior art. In particular, the design effort should be low. In particular, the braking device should be as simple as possible.
This object is achieved by an arrangement with the features of claim 1. Accordingly, it is provided according to the invention that the brake cable is guided into the frame from the bicycle fork via a radial opening in the bicycle fork. Thus, the brake cable does not have to be led out of the bicycle fork above or axially via a kink that is complex to construct. This considerably simplifies assembly and cable laying. It is also avoided that the fork claw usually introduced in the upper region of the steerer tube has to be dismantled. The fork claw can therefore always be permanently installed.
Preferred embodiments of the present invention are specified in the dependent claims.
The brake cable runs from the frame into the bicycle handlebar. In principle, the brake cable can be guided along the outside of the frame at least in some areas. It is preferably provided that the brake cable leads through an opening in the frame from the inside of the frame into a stem of the bicycle handlebar. From the stem of the bicycle handlebar, the brake cable in turn leads to at least one of the handlebars and to the brake lever attached to it.
/ 20th
According to a preferred embodiment, it is provided that the brake cable has a cable cover and a brake cable that is movably guided in the cable cover. In particular, the brake cable is designed as a Bowden cable.
It is preferably provided for the bicycle fork that it has a fork shaft and two fork blades branching off from the fork shaft. The bicycle fork is preferably formed in one piece, preferably from a stable lightweight material. The bicycle fork can optionally also have a fork crown. At least the steerer tube of the bicycle fork is hollow. The steerer tube is preferably sleeve-shaped or tubular. Particularly preferably, the steerer tube is circular cylinder jacket-shaped at least in some areas.
According to a preferred embodiment of the present invention, the radial opening is formed in the fork shaft of the bicycle fork. The radial opening can in principle be formed at the front (i.e. in the direction of travel) or laterally in the bicycle fork. It is preferably provided that the radial opening is formed in the region of the bicycle fork facing away from the direction of travel. The radial opening can have any shape in itself. The radial opening is preferably designed as an axially elongated elongated hole. In general, it is also possible that several radial openings are provided for different brake cables.
In order to transmit the steering movement, provision is preferably made for the bicycle fork to be pivotally mounted in or on the frame via two pivot joints axially spaced apart from one another about a pivot axis. In particular, the steerer tube is rotatably supported in the frame via the swivel joints. For this purpose, a head tube can be provided in or on the frame. The hollow front region of the frame, together with the swivel joints, preferably takes over the function of the head tube.
Protection is also sought after for a bicycle, in particular for a racing bike in the form of a triathlon racing bike, with an arrangement according to the invention. For this purpose, it is preferably provided that the bicycle has a front wheel rotatably mounted on the bicycle fork, a rear wheel rotatably mounted on the frame, pedals rotatably mounted on the frame and a saddle attached to the frame, preferably adjustable in height.
Further details and advantages of the present invention are explained in more detail below with reference to the description of the figures and with reference to the exemplary embodiments illustrated in the drawings. In it show:
1 shows a bicycle in a perspective view,
2 is a side view of the bicycle,
Fig. 3 is a detailed view of the front region of the frame including the steerer tube and brake cable and
Fig. 4 in perspective the bicycle fork including brake cable.
A bicycle 2 is shown in perspective in FIG. 1. This bicycle 2 is designed as a triathlon racing bicycle and has a corresponding bicycle handlebar 3. This bicycle handlebar 3 has a stem 10, via which the bicycle handlebar 3 is connected to the frame 1. The bicycle handlebar 3 and the stem 10 can also be formed in one piece. The lower link 20 and the upper link 21 (also referred to as extensions or support arms) are attached to the stem 10. In addition, the bicycle handlebar 3 has the armrests 22. The brake lever 7 of the brake device 5 is attached to the lower link 20. The brake lever 7 could also be attached to the upper link 21 of the bicycle handlebar 3. The bicycle fork 4 is mounted rotatably about the pivot axis S on a front region of the frame 1. The frame 1 takes over the function of the head tube. The bicycle fork 4 has the fork shaft 13 and the two fork blades 14. The front wheel 17 is rotatably mounted on the fork blades 14. The rear wheel 18 is rotatably mounted on the frame 1. The saddle 19 is attached to the frame 1 in a height-adjustable manner. In this Fig. 1, the pedals, the bicycle chain, the pinion and the manual transmission and the spokes are not shown.
/ 20th
2 shows the bicycle 2 in a side view. It can be seen that the brake device 5 is composed of the brake lever 7, the brake cable 8 and the brake system 6. This brake device 5 functions as a front wheel brake. The brake system 6 is fastened in the region of the fork of the bicycle fork 4. The brake system 6 can be designed and positioned as desired, as long as a braking effect for the front wheel 17 is achieved. The brake system preferably has 6 brake shoes, which bear against a rim of the front wheel 17 in the braking position.
In Fig. 3 it can be seen that the fork shaft 13 of the bicycle fork 4 is rotatably mounted about the pivot axis S in the frame 1 via the two pivot joints 15 and 16. The brake cable 8 leads from the brake system 6 through the swivel joint 15 into the interior of the fork shaft 13 and there to a radial opening 9 formed in the fork shaft 13. Radial opening means that the opening is not axial along the pivot axis S (i.e. not in the upper one Area) leads out of the steerer tube 13, but is formed transversely to the pivot axis S in the steerer tube 13. The brake cable 8 leads through the radial opening 9 into the interior of the frame 1. The brake cable 8 is guided through the opening 23 in the frame 1 to the stem 10 of the bicycle handlebar 3. It can thus be seen that the brake cable 8 does not have to make a structurally unfavorable bend between the brake system 6 and the bicycle handlebar 3.
4 shows a perspective view of the bicycle fork 4 with the fork shaft 13 and the upper region of the fork blades 14. The radial opening 9 is formed in the steerer tube 13. This radial opening 9 has the shape of an elongated hole. The brake cable 8 leads from the interior of the steerer tube 13 through the radial opening 9 into the interior of the front region of the frame 1, not shown here.
This guidance of the brake cable 8 from the steerer tube 13 through the radial opening 9 into the frame 1 and then into the stem 10 has the advantage that the bicycle handlebar 3 can be separated / 20 more easily from the frame 1 and from the bicycle fork 4. In particular, a brake cable coupling, not shown, can be provided in the area of the stem 10.
LIST OF REFERENCE NUMBERS
frame
bicycle
bicycle handlebars
bicycle fork
braking device
braking system
brake lever
Radial opening brake cable
porch
steerer
fork blades
swivel
swivel
front
rear wheel
saddle
lower link
top link
armrests
opening
S swivel axis
权利要求:
Claims (8)
[1]
claims
1st arrangement
- a frame (1) for a bicycle (2),
- a bicycle handlebar (3),
- One with the bicycle handlebar (3) rotatably connected bicycle fork (4) and
- A brake device (5) which has a brake system (6) arranged on the bicycle fork (4), at least one brake lever (7) arranged on the bicycle handlebar (3) and at least one of the brake system (6) leading to the at least one brake lever (7) Has brake cable (8), characterized in that the brake cable (8) from the bicycle fork (4) via a radial opening (9) in the bicycle fork (4) is guided into the frame (1).
[2]
2. Arrangement according to claim 1, characterized in that the brake cable (8) from the frame (1) in the bicycle handlebar (3), preferably in a stem (10) of the bicycle handlebar (3) is guided.
[3]
3. Arrangement according to claim 1 or 2, characterized in that the brake cable (8) is designed as a Bowden cable, the brake cable (8) having a cable casing and a brake cable movably guided in the cable casing.
[4]
4. Arrangement according to one of claims 1 to 3, characterized in that the bicycle fork (4) has a fork shaft (13) and two fork blades (14).
[5]
5. Arrangement according to claim 4, characterized in that the radial opening (9) in the steerer tube (13) of the bicycle fork (4) is formed.
[6]
6. Arrangement according to claim 4 or 5, characterized in that the bicycle fork (4) about two pivot joints (15, 16) about a pivot axis (S) in the frame (1) is pivotally mounted.
8/20
[7]
7. bicycle (2), in particular triathlon racing bike, with an arrangement according to at least one of the preceding claims.
[8]
8. Bicycle according to claim 7, characterized in that the bicycle (2) on the bicycle fork (4) rotatably mounted front wheel (17), on the frame (1) rotatably mounted rear wheel (18), rotatably mounted pedals and one on the frame (1), preferably height-adjustable, has a saddle (19) attached.
类似技术:
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DE102013108151A1|2015-02-05|bicycle
DE102019103733A1|2020-08-20|BICYCLE ACTUATION DEVICE
AT16673U1|2020-04-15|Arrangement of a frame for a bicycle and a steering assembly
同族专利:
公开号 | 公开日
AT520501B1|2019-09-15|
DE202018004603U1|2018-10-22|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题
US20040112166A1|2002-12-13|2004-06-17|Jon Richardson|Bicycle cable brake line|
EP1598263A2|2004-05-19|2005-11-23|Shimano Inc.|Bicycle headset structure|
WO2012005610A2|2010-07-09|2012-01-12|Savy Man|Improvements in or relating to cycle headsets|
US9174695B1|2014-07-10|2015-11-03|Neco Technology Industry Co., Ltd.|Head parts assembly for a bicycle with a cable collecting device|
US7837212B2|2009-02-25|2010-11-23|Specialized Bicycle Components, Inc.|Handlebar stem for a bicycle|
DE202011103814U1|2011-07-29|2012-11-15|Canyon Bicycles Gmbh|Twin Bridges bicycle fork|
WO2017144105A1|2016-02-25|2017-08-31|Bmc Switzerland Ag|Bicycle frame, steering arrangement and bicycle|DE102020117720A1|2020-07-06|2022-01-13|Schaeffler Technologies AG & Co. KG|Brake transmitter device for a braking system of a vehicle, link arrangement with the brake transmitter device and vehicle with the link arrangement|
DE102020118107A1|2020-07-09|2022-01-13|Schaeffler Technologies AG & Co. KG|Brake transmitter arrangement for a braking system of a vehicle, link arrangement with the brake transmitter arrangement and vehicle with the link arrangement|
DE102020118362A1|2020-07-13|2022-01-13|Schaeffler Technologies AG & Co. KG|Brake transmitter arrangement for a braking system of a vehicle, link arrangement with the brake transmitter arrangement and vehicle with the link arrangement|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
ATA50861/2017A|AT520501B1|2017-10-06|2017-10-06|Arrangement of a frame for a bicycle and a bicycle handlebar|ATA50861/2017A| AT520501B1|2017-10-06|2017-10-06|Arrangement of a frame for a bicycle and a bicycle handlebar|
DE202018004603.5U| DE202018004603U1|2017-10-06|2018-10-04|Arrangement of a frame for a bicycle and a bicycle handlebar|
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