US20140041969A1 - Bicycle brake unit - Google Patents
Bicycle brake unit Download PDFInfo
- Publication number
- US20140041969A1 US20140041969A1 US13/571,339 US201213571339A US2014041969A1 US 20140041969 A1 US20140041969 A1 US 20140041969A1 US 201213571339 A US201213571339 A US 201213571339A US 2014041969 A1 US2014041969 A1 US 2014041969A1
- Authority
- US
- United States
- Prior art keywords
- arm
- pivot
- flange
- slot
- brake unit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/02—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements
- B62L1/06—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/02—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements
- B62L1/06—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged
- B62L1/10—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged by the elements moving substantially parallel to the wheel axis
- B62L1/14—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged by the elements moving substantially parallel to the wheel axis the elements being mounted on levers pivotable about different axes
- B62L1/16—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged by the elements moving substantially parallel to the wheel axis the elements being mounted on levers pivotable about different axes the axes being located intermediate the ends of the levers
Definitions
- the present invention relates to a brake unit, and more particularly, to a bicycle brake unit.
- a conventional bicycle brake unit comprises two arms and two connection units which are connected to the two arms respectively.
- Each connection unit has a sleeve, a cap connected to the front end of the sleeve, a resilient member whose two ends are respectively in contact with the arm and the cap, and a bolt.
- the rear end of the sleeve and the cap respectively has a nut embedded therein.
- the brake unit can be installed in two different directions.
- the cap includes a first driving portion and a second driving portion which is different from the first driving portion in width.
- Another conventional bicycle brake unit discloses a carbon fiber brake unit which has a curved rod and a triangular rod.
- the curved rod has a positioning portion to which a first lining plate is connected.
- the curved rod has a fixing portion to which a clamping unit is connected for clamping the cable.
- the curved rod has a slot and two arms extend through the slot and each arm has a resilient plate connected thereto.
- the triangular rod has a second lining plate connected to the first end thereof and a connector is connected to the second end of the triangular rod.
- the third end of the triangular rod is pivotably connected to the curved rod and extends through the two respective holes of the arms.
- a curved wall is connected between the first and third ends, and the curved wall is in contact with the inside of the resilient plate.
- the action ends for the curved rod and the triangular rod are at the same end and the central portion is pivotable so that the two brake pads may not be evenly applied by the braking forces. Therefore, the efficiency for braking is affected.
- the present invention intends to provide a bicycle brake unit to improve the shortcomings of the conventional brake units.
- a bicycle brake unit comprising a first arm having a first transverse portion and a first upright portion which is connected between a first end and a second end of the first transverse portion.
- the first transverse portion has a first cable connector on the first end thereof and a first rail is connected to a lower side of the second end of the first transverse portion.
- the first upright portion has a first pivot hole defined therethrough. The axis of the first pivot hole is perpendicular to the axis of the first transverse portion.
- a second arm has a second transverse portion and a second upright portion, wherein the second transverse portion has a second cable connector on the first end thereof and a second end of the second transverse portion connected to the second upright portion.
- the first and second cable connectors are movable relative to each other by a cable.
- a flat face extends from the second arm and toward the first arm.
- the flat face has a second rail which is located corresponding to the first rail.
- a second pivot hole is defined through the second end of the second arm.
- a connector is connected to the first arm, and the first arm is located between the second arm and the connector.
- the connector has a first inclined portion and a second inclined portion, the first and second inclined portions are connected as a V-shaped part.
- the first inclined portion has a third pivot hole which is located corresponding to the first pivot hole of the first arm.
- a first pivotal member extends through the first and third pivot holes.
- the second inclined portion has a fourth pivot hole which is located corresponding to the second pivot hole of the second arm.
- a second pivotal member extends through the second and fourth pivot holes.
- An elongate slot is defined in the conjunction between the first and second inclined portions.
- a pivot is rotatably connected between the first
- the first upright portion has a first slot defined through the distal end thereof, and the axis of the first slot is perpendicular to the axis of the first pivot hole.
- the second upright portion has a second slot defined through the distal end thereof, and the axis of the second slot is the same as the axis of the first slot.
- each of the first and second slots is connected with a brake pad.
- the first and second rails are moved in opposite directions so as to drive the pivot to rotate.
- a curved slot is defined between the first and second ends of the second transverse portion.
- the pivot has a first flange, a shank, a second flange and a third flange.
- the first and second flanges are connected to two ends of the shank.
- the third flange is connected to outside of the second flange.
- the outer diameter of the second flange is smaller than that of the third flange.
- the shank is rotatably connected between the first and second rails.
- the first flange is rotatably clamped between the first and second rails.
- the second and third flanges are located in the elongate slot.
- the cable is a steel cable.
- FIG. 1 is an exploded view to show the bicycle brake unit of the present invention
- FIG. 2 is a perspective view to show the bicycle brake unit of the present invention
- FIG. 3 is a side view of the bicycle brake unit of the present invention.
- FIG. 4 is a side view of the bicycle brake unit of the present invention, and shows that the pivot is located between the first and second rails, and
- FIG. 5 shows the action of the bicycle brake unit of the present invention.
- the bicycle brake unit 1 of the present invention comprises a first arm 2 which has a first transverse portion 21 and a first upright portion 22 which is connected between the first end and the second end of the first transverse portion 21 .
- the first transverse portion 21 has a first cable connector 211 on the first end thereof and a first rail 212 is connected to the lower side of the second end of the first transverse portion 21 .
- the first upright portion 22 has a first pivot hole 221 defined therethrough. The axis of the first pivot hole 221 is perpendicular to the axis of the first transverse portion 21 .
- the first upright portion 22 has a first slot 222 defined through the distal end thereof. The axis of the first slot 222 is perpendicular to the axis of the first pivot hole 221 .
- a brake pad is connected to the first slot 222 .
- a second arm 3 is located beside the first arm and has a second transverse portion 31 and a second upright portion 32 .
- the second transverse portion has a second cable connector 311 on the first end thereof and the second end of the second transverse portion 31 is connected to the second upright portion.
- the first and second cable connectors 211 , 311 are movable relative to each other by a cable 6 as shown in FIG. 2 .
- the cable 6 can be a steel cable.
- a curved slot 312 is defined between the first and second ends of the second transverse portion 31 .
- a flat face 313 extends from the second arm 3 and toward the first arm 2 .
- the flat face 313 has a second rail 314 which is located corresponding to the first rail 212 .
- the second upright portion 32 has a second slot 321 defined through the distal end thereof, and the axis of the second slot 321 is the same as the axis of the first slot 222 .
- a second pivot hole 322 is defined through the second end of the second arm 3 .
- a brake pad is connected to the second slot 321 .
- a connector 4 is connected to the first arm 2 which is located between the second arm and the connector 3 , 4 .
- the connector 4 has a first inclined portion 41 and a second inclined portion 42 .
- the first and second inclined portions 41 , 42 are connected at the two respective ends and as a V-shaped part.
- the first inclined portion 41 has a third pivot hole 411 which is located corresponding to the first pivot hole 221 of the first arm 2 .
- a first pivotal member 71 extends through the first and third pivot holes 221 , 411 .
- the second inclined portion 42 has a fourth pivot hole 421 which is located corresponding to the second pivot hole 322 of the second arm 3 .
- a second pivotal member 72 extends through the second and fourth pivot holes 322 , 421 .
- An elongate slot 43 defined in the conjunction between the first and second inclined portions 41 , 42 .
- the pivot 5 is rotatably connected between the first and second rails 212 , 314 and movable in the elongate slot 43 .
- the pivot 5 has a first flange 51 , a shank 2 , a second flange 53 and a third flange 54 .
- the first and second flanges 51 , 53 are connected to two ends of the shank 52 .
- the third flange 54 is connected to outside of the second flange 53 .
- the outer diameter of the second flange 53 is smaller than that of the third flange 54 .
- the shank 52 is rotatably connected between the first and second rails 212 , 314 .
- the first flange 51 is rotatably clamped between the first and second rails 212 , 314 .
- the second and third flanges 53 , 54 are located in the elongate slot 43 .
- the first and second cable connectors 211 , 311 on the two arms 2 , 3 are moved toward each other so as to pivot the first and second arms 2 , 3 relative to each other.
- the first rail 212 on the first arm 2 and the second rail 314 on the second arm 3 are moved relative to each other via the rotation of the pivot 5 .
- the first and second rails 212 , 314 are moved in opposite direction so as to drive the pivot 5 to rotate.
- the pivot 5 is movable in the elongate slot 43 in the connector 4 up and down which is pivotably connected to the first and second arms 2 , 3 by the first and second pivotal members 71 , 72 .
- the first and second arms 2 , 3 are pivoted toward each other to brake the wheel by the brake pads in the first and second slots 222 , 321 of the first and second arms 2 , 3 .
- the first and second arms 2 , 3 apply even forces to the two brake pads.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
Description
- 1. Field of the Invention
- The present invention relates to a brake unit, and more particularly, to a bicycle brake unit.
- 2. Description of Related Art
- A conventional bicycle brake unit is disclosed and comprises two arms and two connection units which are connected to the two arms respectively. Each connection unit has a sleeve, a cap connected to the front end of the sleeve, a resilient member whose two ends are respectively in contact with the arm and the cap, and a bolt. The rear end of the sleeve and the cap respectively has a nut embedded therein. The brake unit can be installed in two different directions. The cap includes a first driving portion and a second driving portion which is different from the first driving portion in width.
- Another conventional bicycle brake unit discloses a carbon fiber brake unit which has a curved rod and a triangular rod. The curved rod has a positioning portion to which a first lining plate is connected. The curved rod has a fixing portion to which a clamping unit is connected for clamping the cable. The curved rod has a slot and two arms extend through the slot and each arm has a resilient plate connected thereto. The triangular rod has a second lining plate connected to the first end thereof and a connector is connected to the second end of the triangular rod. The third end of the triangular rod is pivotably connected to the curved rod and extends through the two respective holes of the arms. A curved wall is connected between the first and third ends, and the curved wall is in contact with the inside of the resilient plate.
- The action ends for the curved rod and the triangular rod are at the same end and the central portion is pivotable so that the two brake pads may not be evenly applied by the braking forces. Therefore, the efficiency for braking is affected.
- The present invention intends to provide a bicycle brake unit to improve the shortcomings of the conventional brake units.
- It is therefore one object of the invention to provide a bicycle brake unit comprising a first arm having a first transverse portion and a first upright portion which is connected between a first end and a second end of the first transverse portion. The first transverse portion has a first cable connector on the first end thereof and a first rail is connected to a lower side of the second end of the first transverse portion. The first upright portion has a first pivot hole defined therethrough. The axis of the first pivot hole is perpendicular to the axis of the first transverse portion. A second arm has a second transverse portion and a second upright portion, wherein the second transverse portion has a second cable connector on the first end thereof and a second end of the second transverse portion connected to the second upright portion. The first and second cable connectors are movable relative to each other by a cable. A flat face extends from the second arm and toward the first arm. The flat face has a second rail which is located corresponding to the first rail. A second pivot hole is defined through the second end of the second arm. A connector is connected to the first arm, and the first arm is located between the second arm and the connector. The connector has a first inclined portion and a second inclined portion, the first and second inclined portions are connected as a V-shaped part. The first inclined portion has a third pivot hole which is located corresponding to the first pivot hole of the first arm. A first pivotal member extends through the first and third pivot holes. The second inclined portion has a fourth pivot hole which is located corresponding to the second pivot hole of the second arm. A second pivotal member extends through the second and fourth pivot holes. An elongate slot is defined in the conjunction between the first and second inclined portions. A pivot is rotatably connected between the first and second rails and is movable in the elongate slot.
- Preferably, the first upright portion has a first slot defined through the distal end thereof, and the axis of the first slot is perpendicular to the axis of the first pivot hole. The second upright portion has a second slot defined through the distal end thereof, and the axis of the second slot is the same as the axis of the first slot.
- Preferably, each of the first and second slots is connected with a brake pad.
- Preferably, the first and second rails are moved in opposite directions so as to drive the pivot to rotate.
- Preferably, a curved slot is defined between the first and second ends of the second transverse portion.
- Preferably, the pivot has a first flange, a shank, a second flange and a third flange. The first and second flanges are connected to two ends of the shank. The third flange is connected to outside of the second flange. The outer diameter of the second flange is smaller than that of the third flange. The shank is rotatably connected between the first and second rails. The first flange is rotatably clamped between the first and second rails. The second and third flanges are located in the elongate slot.
- Preferably, the cable is a steel cable.
- The above and other objects, features and advantages of the invention will become apparent from the following detailed description taken with the accompanying drawings.
-
FIG. 1 is an exploded view to show the bicycle brake unit of the present invention; -
FIG. 2 is a perspective view to show the bicycle brake unit of the present invention; -
FIG. 3 is a side view of the bicycle brake unit of the present invention; -
FIG. 4 is a side view of the bicycle brake unit of the present invention, and shows that the pivot is located between the first and second rails, and -
FIG. 5 shows the action of the bicycle brake unit of the present invention. - Referring to
FIGS. 1 to 5 , the bicycle brake unit 1 of the present invention comprises afirst arm 2 which has a firsttransverse portion 21 and a firstupright portion 22 which is connected between the first end and the second end of the firsttransverse portion 21. The firsttransverse portion 21 has afirst cable connector 211 on the first end thereof and afirst rail 212 is connected to the lower side of the second end of the firsttransverse portion 21. The firstupright portion 22 has afirst pivot hole 221 defined therethrough. The axis of thefirst pivot hole 221 is perpendicular to the axis of the firsttransverse portion 21. The firstupright portion 22 has afirst slot 222 defined through the distal end thereof. The axis of thefirst slot 222 is perpendicular to the axis of thefirst pivot hole 221. A brake pad is connected to thefirst slot 222. - A
second arm 3 is located beside the first arm and has a secondtransverse portion 31 and asecond upright portion 32. The second transverse portion has asecond cable connector 311 on the first end thereof and the second end of the secondtransverse portion 31 is connected to the second upright portion. The first andsecond cable connectors cable 6 as shown inFIG. 2 . Thecable 6 can be a steel cable. Acurved slot 312 is defined between the first and second ends of the secondtransverse portion 31. Aflat face 313 extends from thesecond arm 3 and toward thefirst arm 2. Theflat face 313 has asecond rail 314 which is located corresponding to thefirst rail 212. Thesecond upright portion 32 has asecond slot 321 defined through the distal end thereof, and the axis of thesecond slot 321 is the same as the axis of thefirst slot 222. Asecond pivot hole 322 is defined through the second end of thesecond arm 3. A brake pad is connected to thesecond slot 321. - A
connector 4 is connected to thefirst arm 2 which is located between the second arm and theconnector connector 4 has a firstinclined portion 41 and a secondinclined portion 42. The first and secondinclined portions inclined portion 41 has athird pivot hole 411 which is located corresponding to thefirst pivot hole 221 of thefirst arm 2. A firstpivotal member 71 extends through the first and third pivot holes 221, 411. The secondinclined portion 42 has afourth pivot hole 421 which is located corresponding to thesecond pivot hole 322 of thesecond arm 3. A secondpivotal member 72 extends through the second and fourth pivot holes 322, 421. Anelongate slot 43 defined in the conjunction between the first and secondinclined portions - The
pivot 5 is rotatably connected between the first andsecond rails elongate slot 43. Thepivot 5 has afirst flange 51, ashank 2, asecond flange 53 and athird flange 54. The first andsecond flanges shank 52. Thethird flange 54 is connected to outside of thesecond flange 53. The outer diameter of thesecond flange 53 is smaller than that of thethird flange 54. Theshank 52 is rotatably connected between the first andsecond rails first flange 51 is rotatably clamped between the first andsecond rails third flanges elongate slot 43. - When the
cable 6 is pulled, the first andsecond cable connectors arms second arms first rail 212 on thefirst arm 2 and thesecond rail 314 on thesecond arm 3 are moved relative to each other via the rotation of thepivot 5. In detail, the first andsecond rails pivot 5 to rotate. Thepivot 5 is movable in theelongate slot 43 in theconnector 4 up and down which is pivotably connected to the first andsecond arms pivotal members second arms second slots second arms second arms - While the invention has been described in terms of preferred embodiments, those skilled in the art will recognize that the invention can be practiced with modifications within the spirit and scope of the appended claims.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/571,339 US8651245B1 (en) | 2012-08-09 | 2012-08-09 | Bicycle brake unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/571,339 US8651245B1 (en) | 2012-08-09 | 2012-08-09 | Bicycle brake unit |
Publications (2)
Publication Number | Publication Date |
---|---|
US20140041969A1 true US20140041969A1 (en) | 2014-02-13 |
US8651245B1 US8651245B1 (en) | 2014-02-18 |
Family
ID=50065354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/571,339 Expired - Fee Related US8651245B1 (en) | 2012-08-09 | 2012-08-09 | Bicycle brake unit |
Country Status (1)
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US (1) | US8651245B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3112243A1 (en) * | 2015-06-30 | 2017-01-04 | Campagnolo S.R.L. | Bicycle brake |
EP3112244A1 (en) * | 2015-06-30 | 2017-01-04 | Campagnolo S.R.L. | Bicycle brake and method for constructing the profile of a surface portion of a lever of said brake |
US20170073035A1 (en) * | 2015-09-10 | 2017-03-16 | Sram, Llc | Bicycle Rim Brake |
CN107651088A (en) * | 2016-07-26 | 2018-02-02 | 曾东荣 | Improved structure of brake |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050061587A1 (en) * | 2003-09-18 | 2005-03-24 | Tsai Shih Fan | Brake device having adjustable spring member |
JP2007030648A (en) * | 2005-07-26 | 2007-02-08 | Shimano Inc | Rim brake control system for bicycle |
US7802660B2 (en) * | 2008-02-01 | 2010-09-28 | Tektro Technology Corporation | Quick-release device of a bicycle brake cable |
US8061487B2 (en) * | 2009-03-23 | 2011-11-22 | Szu-Fang Tsai | Mechanism for quickly loosening and tightening brake cable in caliper brake of bicycle |
US8522929B2 (en) * | 2009-12-10 | 2013-09-03 | Shimano Inc. | Bicycle rim brake assembly |
US8151945B2 (en) * | 2010-05-25 | 2012-04-10 | Tektro Technology Corporation | Bicycle brake with a mechanism for quickly loosening brake cable |
-
2012
- 2012-08-09 US US13/571,339 patent/US8651245B1/en not_active Expired - Fee Related
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3112243A1 (en) * | 2015-06-30 | 2017-01-04 | Campagnolo S.R.L. | Bicycle brake |
EP3112244A1 (en) * | 2015-06-30 | 2017-01-04 | Campagnolo S.R.L. | Bicycle brake and method for constructing the profile of a surface portion of a lever of said brake |
US20170001681A1 (en) * | 2015-06-30 | 2017-01-05 | Campagnolo S.R.L. | Bicycle brake and method for constructing the profile of a surface portion of a lever of said brake |
CN106314661A (en) * | 2015-06-30 | 2017-01-11 | 坎培诺洛有限公司 | A bicycle brake and a method of constructing the contour of the surface portion of the brake rod |
US9944346B2 (en) | 2015-06-30 | 2018-04-17 | Campagnolo S.R.L. | Bicycle brake |
US10259521B2 (en) * | 2015-06-30 | 2019-04-16 | Campagnolo S.R.L. | Bicycle brake and method for constructing the profile of a surface portion of a lever of said brake |
US20170073035A1 (en) * | 2015-09-10 | 2017-03-16 | Sram, Llc | Bicycle Rim Brake |
US10207767B2 (en) * | 2015-09-10 | 2019-02-19 | Sram, Llc | Bicycle rim brake |
US10710672B2 (en) | 2015-09-10 | 2020-07-14 | Sram, Llc | Bicycle rim brake |
CN107651088A (en) * | 2016-07-26 | 2018-02-02 | 曾东荣 | Improved structure of brake |
Also Published As
Publication number | Publication date |
---|---|
US8651245B1 (en) | 2014-02-18 |
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