KR200477165Y1 - Transmission cable adapter for bicycle - Google Patents

Transmission cable adapter for bicycle Download PDF

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Publication number
KR200477165Y1
KR200477165Y1 KR2020150001816U KR20150001816U KR200477165Y1 KR 200477165 Y1 KR200477165 Y1 KR 200477165Y1 KR 2020150001816 U KR2020150001816 U KR 2020150001816U KR 20150001816 U KR20150001816 U KR 20150001816U KR 200477165 Y1 KR200477165 Y1 KR 200477165Y1
Authority
KR
South Korea
Prior art keywords
cam link
adapter
cable
bicycle
guide
Prior art date
Application number
KR2020150001816U
Other languages
Korean (ko)
Inventor
김종대
Original Assignee
(주)엠비에스코프레이션
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 (주)엠비에스코프레이션 filed Critical (주)엠비에스코프레이션
Priority to KR2020150001816U priority Critical patent/KR200477165Y1/en
Application granted granted Critical
Publication of KR200477165Y1 publication Critical patent/KR200477165Y1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/131—Front derailleurs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/131—Front derailleurs
    • B62M9/135—Mounting the derailleur on the frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/131—Front derailleurs
    • B62M9/136—Chain guides; Mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/131—Front derailleurs
    • B62M9/137—Mounting or guiding of cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/13—Bicycles; Tricycles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

The present invention relates to a variable speed cable adapter for a bicycle, which can be used by switching the direction of a variable speed cable connected to a front derailleur of a bicycle and converting the down pull type of the derailleur into a topple type.
The front derailleur includes a clamp mounted on a seat tube of a bicycle, a cam link rotatably coupled to one side of the clamp and rotated by a speed change cable, and a link coupled to the clamp and the cam link, And includes a chain guide that moves during a time period.
The adapter includes a body surrounding at least a part of the circumference of the cam link, a fixing plate formed on the inner circumference of the body and closely attached to the front surface of the cam link, And a cable guide formed along the outer periphery of the body.

Description

Transmission cable adapter for bicycle {TRANSMISSION CABLE ADAPTER FOR BICYCLE}

The present invention relates to a variable speed cable adapter for a bicycle, and more particularly, to a variable speed cable adapter for a bicycle which can be used by switching the direction of a variable speed cable connected to a front derailleur of a bicycle, will be.

Generally, a bicycle comprises a frame made up of a plurality of tubes and stays. A front wheel and a rear wheel are rotatably provided on the front and rear of the frame, and a handle and a seat are respectively mounted on the head tube and the seat tube of the frame. A chain ring serving as driving means is provided at the lower portion of the frame, a sprocket serving as a follower means is provided at the rear of the frame, and a chain serving as a transmission means is wound around the chain ring and the sprocket. In addition, a transmission is provided so that the gear can be adjusted according to driving conditions such as road conditions, speed, and the like.

The bicycle transmission includes a front derailleur mounted on a chain ring of two or three and a rear derailleur installed on a cassette sprocket consisting of seven to nine wheels. At this time, the front derailleur and the rear derailleur are connected to a pair of shifters respectively provided on the left and right sides of the handlebar through the transmission cable.

The front derailleur has a top pull type and a down pull type depending on the transmission cable path. In the Toppulse method, the transmission cable connected to the shifter is installed along the head tube, the top tube, and the seat tube, and is connected from the top of the front derailleur. In the down pull type, the transmission cable is installed along the head tube and the down tube, It is connected in the bottom.

Japanese Patent Application Laid-Open No. 2003-160087 (Jun. 2003) discloses a down pull type front derailleur. The down pull type front trailer 14 has a structure in which the transmission cable 18 extends from the lower portion of the front derailleur 12 and is wound and fixed to the cable mounting link 24, . However, there is a possibility that the transmission cable 18 may be damaged by a stone or the like that springs from the road surface during traveling, and a foreign matter including moisture in winter can be adhered to the transmission cable 18 and freeze. The frozen foreign matter fixes the transmission cable 18 to make the shifting by the front derailleur 12 impossible.

Japanese Patent Application Laid-Open No. 2003-160087 (Jun. 2003)

The present invention provides a variable speed cable adapter for a bicycle which can switch the direction of a variable speed cable connected to a front derailleur of a bicycle and convert the down pull type of the drainer into a topple mode, It has its purpose.

In order to achieve the above object, a bicycle transmission cable adapter according to the present invention is installed in a front derailleur. The front derailleur includes a clamp mounted on a seat tube of a bicycle, a cam link rotatably coupled to one side of the clamp and rotated by a speed change cable, and a link coupled to the clamp and the cam link, And includes a chain guide that moves during a time period.

The adapter includes a body surrounding at least a part of the circumference of the cam link, a fixing plate formed on the inner circumference of the body and closely attached to the front surface of the cam link, And a cable guide formed along the outer periphery of the body.

An engaging rod passing through the cam link may protrude from the rear surface of the fixing plate, and a locking protrusion may be formed at the tip of the engaging rod.

The cable guide may include a first guide formed on the front side of the body and a second guide formed on the rear side of the body, and the first guide and the second guide may be formed along the outer circumference of the body Can be alternately arranged.

In the present invention configured as described above, the transmission cable connected to the front derailleur is guided along the outer circumference of the body and installed in the longitudinal direction of the seat tube. That is, the variable speed cable fixed to the cam link and extending downward can be wound around the adapter to switch the direction upward. Therefore, it is possible to convert the down pool type drainer to the top pool type. Especially, it is easy to use because it does not need to change the structure of the down pull type drainer, it is simple in structure, easy to manufacture, and can be easily mounted on or removed from the front derailleur.

1 is a perspective view of a variable speed cable adapter for a bicycle according to an embodiment of the present invention;
FIG. 2 is a front view of a bicycle transmission cable adapter according to one embodiment of the present invention; FIG.
3 is a view showing a state in which a bicycle transmission cable adapter according to an embodiment of the present invention is mounted on a front derailleur.
FIGS. 4 and 5 are views showing a state in which a bicycle transmission cable adapter and a front derailleur are installed on a frame of a bicycle according to an embodiment of the present invention in different directions. FIG.

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. Hereinafter, in describing the embodiment according to the present invention and adding the reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals as much as possible even if they are shown in different drawings.

1 and 2, a bicycle transmission cable adapter 100 (hereinafter, referred to as 'adapter') according to an embodiment of the present invention includes a body installed on a cam link 220 of a front derailleur 200, (110). The body 110 is an arc-shaped block surrounding at least a part of the circumference of the cam link 220. In order to reduce the weight of the adapter 100, a hollow groove 112 is formed in the body 110.

Fixing plates 122 and 124 and fixing protrusions 130 are formed on the body 110 so that the adapter 100 can be mounted on and fixed to the cam link 220. The fixing plates 122 and 124 are formed on the inner circumference of the body 110 and are disposed on the front side so as to be in close contact with the front surface of the cam link 220 when the adapter 100 is mounted. The fixing protrusion 130 is formed on the inner circumference of the body 110 and is positioned at a position corresponding to the fixing plates 122 and 124, that is, on the rear side, and is in close contact with the rear surface of the cam link 220 when the adapter 100 is mounted . The pair of fixing plates 122 and 124 and the fixing protrusions 130 are arranged alternately along the inner circumference of the body 110. The pair of fixing plates 122 and 124 and the fixing protrusions 130 are arranged alternately along the inner circumference of the body 110, do. In other words, when the adapter 100 is viewed from the front, the fixing protrusions 130 are positioned between the pair of fixing plates 122 and 124. [

On the other hand, a coupling rod 140 protrudes from the rear surface of the fixing plate 122 having a relatively large area among the pair of fixing plates 122 and 124. The coupling rod 140 passes through the cam link 220 when the adapter 100 is mounted and a hook 142 is formed at the tip of the coupling rod 140 to prevent the adapter 100 from being separated arbitrarily. In addition, a coupling groove 144 is formed in the coupling rod 140 to fasten the adapter 100 fixing screw.

Cable guides 152 and 154 are formed around the outer periphery of the body 110. The cable guides 152 and 154 are the means for guiding the transmission cable 300 of FIG. 4 connected to the cam link 220 upward in the longitudinal direction of the seat tube 400, more specifically, along the seat tube 400 . The cable guides 152 and 154 include a first guide 152 formed on the front surface of the body 110 and a second guide 154 formed on the rear surface of the body 110. At this time, the first guide 152 and the second guide 154 are disposed alternately along the outer circumference of the body 110. When the adapter 100 is viewed from the front, the first guide 152 and the second guide 154 are staggered from each other.

A structure for switching the direction of the transmission cable 300 using the adapter 100 will be described with reference to FIGS. 3 to 5 as follows.

The front derailleur 200 shown in FIGS. 3 to 5 is a down pull type derailleur which guides the transmission cable 300 downward. The front trailer 200 includes a clamp 210 mounted on a seat tube (400 in Fig. 4) of a bicycle and a rotary shaft (not shown) coupled to one side of the clamp 210, And a chain guide 230 that is linked to the clamp 210 and the cam link 220 and moves during rotation of the cam link 220. [

The cam link 220 has a plate cam shape that rotates about a rotation axis 222 coupled to the clamp 210. A fixed arm 224 and a fixed bolt 226 are provided on one side of the cam link 220 for fixing the transmission cable 300. A through hole 228 for mounting the adapter 100 is formed on the other side of the cam link 220.

The adapter 100 is mounted at the front side of the cam link 220 and surrounds the side and the bottom of the cam link 220 about the rotation axis 222. The fixing plates 122 and 124 and the fixing protrusions 130 of Figure 1 are attached to the front and rear surfaces of the cam link 220 to fix the adapter 100 and the connecting rod 140 is inserted into the through hole 228 And is fixed by the latching jaw 142. [

The variable transmission cable 300 fixed to the fixed arm 224 and the fixed bolt 226 is guided and guided along the outer circumference of the adapter 100 while the adapter 100 is mounted. At this time, the first guide 152 and the second guide 154 prevent the transmission cable 300 from being disengaged from the adapter 100 forward or backward.

 As described above, the transmission cable 300 guided by the adapter 100 is positioned in the longitudinal direction of the seat tube 400, more specifically, upwardly along the seat tube 400 as shown in FIGS. 4 and 5 .

Therefore, the direction of the transmission cable 300 can be switched to the topple mode without changing the structure of the down pull type front derailleur 200. Particularly, since the adapter 100 can be easily attached and detached, the adapter 100 can be used easily and conveniently.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of various changes and modifications within the scope and spirit of the invention. Those skilled in the art will understand. Therefore, the scope of protection of the present invention should be construed not only in the specific embodiments but also in the scope of the utility model registration claims, and all technical ideas within the scope of the claims should be interpreted as being included in the scope of the present invention.

100: Adapter 110: Body
122, 124: Fixing plate 130: Fixing projection
140: coupling rod 152, 154: cable guide
200: front derailleur 210: clamp
220: cam link 230: chain guide
300: variable speed cable 400: seat tube

Claims (3)

A cam link rotatably coupled to one side of the clamp and rotated by a speed change cable; a chain link linked to the clamp and the cam link to be moved when the cam link rotates; The adapter being installed in a front derailleur,
The adapter includes a body surrounding at least a part of the circumference of the cam link, a fixing plate formed on the inner circumference of the body and closely attached to the front surface of the cam link, And a cable guide formed along an outer periphery of the body,
Wherein the transmission cable is guided along an outer circumference of the body and installed in the longitudinal direction of the seat tube.
The method according to claim 1,
Wherein a coupling rod passing through the cam link is projected on a rear surface of the fixed plate, and a coupling protrusion is formed at the tip of the coupling rod.
The method of claim 2,
Wherein the cable guide comprises a first guide formed on the front side of the body and a second guide formed on the rear side of the body,
Wherein the first guide and the second guide are alternately arranged along the outer circumference of the body.
KR2020150001816U 2015-03-23 2015-03-23 Transmission cable adapter for bicycle KR200477165Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020150001816U KR200477165Y1 (en) 2015-03-23 2015-03-23 Transmission cable adapter for bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020150001816U KR200477165Y1 (en) 2015-03-23 2015-03-23 Transmission cable adapter for bicycle

Publications (1)

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KR200477165Y1 true KR200477165Y1 (en) 2015-05-13

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003160087A (en) * 2001-11-26 2003-06-03 Shimano Inc Front derailleur for bicycle
JP2005186764A (en) * 2003-12-25 2005-07-14 Shimano Inc Front derailler for bicycle
EP2578487A2 (en) * 2011-10-03 2013-04-10 Shimano Inc. Bicycle front derailleur with a variable actuation ratio

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003160087A (en) * 2001-11-26 2003-06-03 Shimano Inc Front derailleur for bicycle
JP2005186764A (en) * 2003-12-25 2005-07-14 Shimano Inc Front derailler for bicycle
EP2578487A2 (en) * 2011-10-03 2013-04-10 Shimano Inc. Bicycle front derailleur with a variable actuation ratio

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