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Bicycle bottom bracket assembly and adapter device for such an assembly

A joint device, bicycle technology, applied to bicycle accessories, bicycle frames, vehicle parts, etc., can solve the problem of not being able to keep the shaft in a proper position, and achieve the effect of ensuring accuracy

Active Publication Date: 2011-12-07
CAMPAGNOLO SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bearing does not hold the shaft in place because the bearing is free to move axially

Method used

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  • Bicycle bottom bracket assembly and adapter device for such an assembly
  • Bicycle bottom bracket assembly and adapter device for such an assembly
  • Bicycle bottom bracket assembly and adapter device for such an assembly

Examples

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Effect test

Embodiment Construction

[0078] exist figure 1 , 10 , 11, 12 and 13, the bottom bracket assembly according to the present invention is represented by 1.

[0079] The assembly 1 includes a shaft 5 rotatably supported inside a case 10 provided on a bicycle frame (not shown) by inserting a right bearing 15 and a left bearing 20 .

[0080] exist figure 1 , 10 In the examples shown in , 11, 12 and 13, the shaft 5 is made into two separate parts whose heads are connected together, but this is not a limitation of the invention, the shaft can also be made in one piece.

[0081] figure 1 , 10 Component 1 in , 11, 12 and 13 represents an alternative embodiment of the component of the present invention. Specifically, in figure 1 , 10 , 11 and 12 show the assembly, the bearing is cantilevered on the outside of the box 10, and the Figure 13 In the shown assembly, the bearings are supported inside the housing 10 .

[0082] refer to figure 1 , the shaft has a right shoulder 22 and a left shoulder 24 at i...

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PUM

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Abstract

A bicycle bottom bracket assembly comprises a shaft having a longitudinal axis X-X extending along a predetermined direction, a pair of bearings adapted to support said shaft in rotation with respect to a housing box of the bottom bracket assembly provided in a bicycle frame and a pair of adapter devices adapted to be associated canti-levered with opposite free ends of said box to support said bearings outside of said box. In accordance with the invention, at least one adapter device of said pair of adapter devices comprises at least one first stop element and at least one second stop element arranged on opposite sides with respect to at least one bearing, wherein said at least one first stop element and at least one second stop element cooperate with said at least one bearing to keep said at least one bearing inside a space having a predetermined axial extension. Preferably, said axial extension is equal to or slightly greater than the axial extension of the bearing. The movement of bearing is thus substantially blocked or highly limited in both ways of the axial direction, thus constituting a fixed reference with respect to which it is possible to unequivocally determine the chain line of the bottom bracket of the bicycle.

Description

technical field [0001] The invention relates to a bicycle bottom bracket assembly. [0002] The invention also relates to a joint device for such an assembly, and to a method for mounting the bearing of such an assembly relative to a housing box of this assembly provided on a bicycle frame. Background technique [0003] As is known, a bicycle bottom bracket assembly comprises a shaft rotatably supported on a receiving box provided on a bicycle frame and two crank arms associated with opposite ends of the shaft. The shaft can be made as a separate piece from the crank arm, or it can be made as a single piece from one of the two crank arms. [0004] Rotation of the shaft relative to the box is achieved by means of a pair of rolling bearings mounted on the shaft. Specifically, each bearing is provided on the shaft at a respective body portion of the shaft adjacent the crank arm. [0005] Typically, the bearing supports are supported either inside or outside a box provided on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M1/02B62K19/30B62M1/36
CPCB62K19/34B62M3/003Y10T74/2164
Inventor 马里奥·梅焦兰保罗·帕斯夸
Owner CAMPAGNOLO SRL