EP1984234A1 - Case for locking and guiding the spring for v-brake bicycle braking systems - Google Patents

Case for locking and guiding the spring for v-brake bicycle braking systems

Info

Publication number
EP1984234A1
EP1984234A1 EP07709267A EP07709267A EP1984234A1 EP 1984234 A1 EP1984234 A1 EP 1984234A1 EP 07709267 A EP07709267 A EP 07709267A EP 07709267 A EP07709267 A EP 07709267A EP 1984234 A1 EP1984234 A1 EP 1984234A1
Authority
EP
European Patent Office
Prior art keywords
spring
case
locking
slot
brake
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.)
Withdrawn
Application number
EP07709267A
Other languages
German (de)
French (fr)
Inventor
João Carlos RIBEIRO MIRANDA
João Carlos NUNES LOURENCO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miranda and Irmao Ltda
Original Assignee
Miranda and Irmao Ltda
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 Miranda and Irmao Ltda filed Critical Miranda and Irmao Ltda
Publication of EP1984234A1 publication Critical patent/EP1984234A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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

Definitions

  • the present invention relates to a spring locking and guiding mechanism for V-brake bicycle braking systems.
  • the spring is fitted into the case, rotating simultaneously with the box on the sleeve without any locking or misworking, providing a total set stability and avoiding the frequent adjustments and said safety problems.
  • FIG. 1 - a perspective view of the fitting surface in the bicycle pivot
  • FIG. 2 - a perspective view of the fitting surface in the brake lever sleeve
  • FIG. 3 - a sectional view from the top of the case-spring-brake system, fully mounted
  • FIG. 4 - a lateral sectional view of the case-spring-brake system, fully mounted
  • FIG. 5 - a lateral sectional view of the case-spring set, control spindle and fitting spindle
  • FIG. 6 - a lateral sectional view of the brake lever and sleeve set with recess.
  • the mechanism consists primarily of a case (1) made of a plastic polymer, with a central opening (2) , that fits into a metal sleeve (3) previously riveted in the brake lever (4) .
  • the locking between them is made by a projection (5) in the central opening
  • This new locking type (7) allows the case to freely rotate over the sleeve, as if it was a bearing. This locking also allows to keep it from contacting with the lever (4), preventing rubbing and gripping that cause the misworking of many of the present braking systems .
  • the spring is supported and guided in two points (11) (12) of the spring case which are essential for the spring to work properly.
  • the present device has another new feature that consists of a lateral slot (11) in the spring case (1) that locks the spring and guides it, preventing its lateral oscillation.
  • the spring is fitted in the lateral slot (11) of the spring case (1) .
  • the spring doesn't contacts, directly or indirectly, with the lateral part of the lever around the sleeve or other moving parts, such as washers that could be present in both components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to a spring locking and guiding mechanism for V-brake bicycle braking systems. It consists primarily of a case (1) made of a plastic polymer, with a central opening (2), that fits into a metal sleeve (3) previously riveted in the brake lever (4). The locking between them is made by a projection (5) in the central opening (2) of the case that fits in the sleeve recess (6). This new locking type (7) allows the case to freely rotate over the sleeve, as if it was a bearing. This locking also allows to keep it from contacting with the lever (4), preventing rubbing and gripping that cause the misworking many of the present braking systems.

Description

Description
"Case for locking and guiding the spring for V-brake bicycle braking systems"
The present invention relates to a spring locking and guiding mechanism for V-brake bicycle braking systems.
The systems of the same type known in the art are equipped with a case system in which the spring is fitted into the case and gets locked between the case and the brake lever, producing in many situations a spring gripping and a misworking of the brake set. This friction also originates further difficulties related with the correct adjustment between the left and the right brake levers .
To prevent this problem it is normal to fit a washer to create a space between the case and the brake lever to prevent the friction, but this does not prevent mechanical clearances, rubbing and spring overbalances .
Another problem concerns with the previous art systems, in which the spring is not guided and in this way it can frequently disengage out from the brake lever, causing a breakdown in the brake work and the resulting safety problems.
With this new system, the spring is fitted into the case, rotating simultaneously with the box on the sleeve without any locking or misworking, providing a total set stability and avoiding the frequent adjustments and said safety problems.
The appended drawings, which are exemplificative and non- limitative, illustrate:
FIG. 1 - a perspective view of the fitting surface in the bicycle pivot
FIG. 2 - a perspective view of the fitting surface in the brake lever sleeve
FIG. 3 - a sectional view from the top of the case-spring-brake system, fully mounted FIG. 4 - a lateral sectional view of the case-spring-brake system, fully mounted
FIG. 5 - a lateral sectional view of the case-spring set, control spindle and fitting spindle
FIG. 6 - a lateral sectional view of the brake lever and sleeve set with recess.
PARTS AND FUNCTIONING
The mechanism consists primarily of a case (1) made of a plastic polymer, with a central opening (2) , that fits into a metal sleeve (3) previously riveted in the brake lever (4) . The locking between them is made by a projection (5) in the central opening
(2) of the case that fits in the sleeve recess (6) .
This new locking type (7) allows the case to freely rotate over the sleeve, as if it was a bearing. This locking also allows to keep it from contacting with the lever (4), preventing rubbing and gripping that cause the misworking of many of the present braking systems .
The case is locked in the metal sleeve with the spring (8), the spindle that controls the spring (9) pressure and the spindle that fits in the pivot (10) of the bicycle already mounted.
The spring is supported and guided in two points (11) (12) of the spring case which are essential for the spring to work properly.
The present device has another new feature that consists of a lateral slot (11) in the spring case (1) that locks the spring and guides it, preventing its lateral oscillation. The spring is fitted in the lateral slot (11) of the spring case (1) . With this system the spring doesn't contacts, directly or indirectly, with the lateral part of the lever around the sleeve or other moving parts, such as washers that could be present in both components.
. In this way, there is no possibility of direct or indirect rubbing with the aluminum lever or any other metallic part (washer) that could be present between both components and create locking situations in the system, practically operating as a bearing. LEGEND:
1. Spring case
2. Central opening
3. Metal sleeve
4. Brake lever
5. Fitting projection
6. Sleeve recess
7. Case/sleeve locking
8. Spring
9. Spindle to control the spring pressure
10. Spindle that fits in the bicycle pivot
11. Lateral slot for supporting and guiding the spring
12. Spring support and guiding area
13. Opening for the spindle that controls the spring pressure
14. Opening for the spindle that fits the brake to the fork pivot

Claims

Claims
1. Mechanism of locking case for V-brake bicycle braking systems, characterized in that it consists essentially of one case (1) with a central opening (2), a lateral slot (11) communicating with a base (12) and an opening (13) to insert the control spindle (9) •
2. Mechanism according to claim 1, characterized in that the case
(1) fits into the brake metal sleeve (3) through the central opening (2) and where is fixed by an annular projection (5) subsequently accommodated in a recess (6) opened in the sleeve (3) .
3. Mechanism according to the claims 1 and 2, characterized in that the slot (11) adjacent to a case surface (1) has a gauge corresponding to the spring (8) diameter so that the spring fits completely inside it, wherein the slot also communicates with the support base (12) adjacent to the other case surface ( 1 ) .
4. Mechanism according to claims 1, 2, and 3, characterized in that the spring (8) is locked and guided essentially by the cooperation of both supporting areas, the slot (11) where a spring portion fits, and the base (12) that communicates with said slot, where one of the spring ends stands and in which the configuration of the slot (11) access to the base (12) forces the spring end to be twisted, reinforcing the locking.
5. Mechanism according to claims 1 to 4, characterized in that the spring (8) pressure is controlled by the control spindle (9) .
EP07709267A 2006-01-31 2007-01-29 Case for locking and guiding the spring for v-brake bicycle braking systems Withdrawn EP1984234A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PT10342806A PT103428B (en) 2006-01-31 2006-01-31 SPRING FASTENING AND ORIENTATION BOX FOR V-BRAKE BRAKING SYSTEMS
PCT/PT2007/000005 WO2007089162A1 (en) 2006-01-31 2007-01-29 Case for locking and guiding the spring for v-brake bicycle braking systems

Publications (1)

Publication Number Publication Date
EP1984234A1 true EP1984234A1 (en) 2008-10-29

Family

ID=37846987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07709267A Withdrawn EP1984234A1 (en) 2006-01-31 2007-01-29 Case for locking and guiding the spring for v-brake bicycle braking systems

Country Status (3)

Country Link
EP (1) EP1984234A1 (en)
PT (1) PT103428B (en)
WO (1) WO2007089162A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0735289U (en) * 1993-12-16 1995-06-27 株式会社シマノ Brake device for bicycle
DE29714617U1 (en) * 1997-08-14 1997-10-30 Chang Star Corp., Fu Hsing Hsiang, Changhua Device for fine adjustment of bicycle brake clamps
US6173818B1 (en) * 1999-06-24 2001-01-16 Kuo Yung-Pin Device for adjusting a brake pad

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007089162A1 *

Also Published As

Publication number Publication date
PT103428B (en) 2008-02-11
WO2007089162A1 (en) 2007-08-09
PT103428A (en) 2007-07-31

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20080827

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Effective date: 20081202

RTI1 Title (correction)

Free format text: SPRING CASE AND MECHANISM FOR LOCKING THE SPRING CASE TO A METAL SLEEVE OF A BRAKE LEVER

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