Method and apparatus for constructing disc brakes
AssigneeDelphi Technologies, Inc.
InventorWilliam Anthony Thorpe
Life of this patent
Estimating the term…
Abstract
A disc brake (10) comprises at least two axially slidable brake discs (12, 14). The brake discs are mounted for axial sliding movement under the dynamic conditions of use by means of a series of circumferentially spaced wire springs (42) or leaf springs each of which simultaneously receives the at least two brake discs on the axially-extending structure of the spring. As a result, initiation of braking causes simultaneous axial sliding movement of the entire spring and multiple disc assembly as a unit, thereby achieving a more balanced braking action and more even friction pad wear.
Claims10
A method of mounting a brake disc in a spot-type disc brake, the disc brake comprising:
- a) at least two rotatable brake discs;
- b) a rotatable mounting for said brake discs to permit such rotation and which is adapted to drive said brake discs and to have exerted thereon a braking effect by said brake discs when the brake is actuated;
- c) at least three friction elements adapted to frictionally engage braking surfaces of opposite sides of said brake discs to effect braking on actuation of actuation means therefor;
- d) said brake discs being axially slidable in use with respect to said mounting therefor under the action of said friction elements and said actuation means therefor during braking;
- e) resilient means being provided at circumferentially spaced positions around said brake discs and adapted to act between said brake discs and said mounting therefor at said positions;
- characterised by said method comprising:
- f) providing said resilient means adapted axially to straddle said at least two discs at said circumferentially spaced positions around said at least two brake discs, and said method comprising causing said resilient means when so located to apply a resilient bias directed between said discs and said rotatable mounting for said brake discs;
- g) the method further comprising the step of simultaneously moving said resilient means with said at least two brake discs as a unit when said actuation means is actuated.
A method of mounting a brake disc in a disc brake comprising providing resilient means adapted to act between at least two brake discs and a rotatable mounting therefor at circumferentially spaced positions around said discs, and the method comprising causing the resilient means to apply a resilient bias directed between the brake discs and the rotatable mounting therefor, said resilient means being adapted to straddle axially said discs and to cause each of said discs simultaneously to move axially with respect to said mounting for said discs upon initiating braking.
A spot type disc brake comprising:
- a) at least two rotatable brake discs;
- b) a rotatable mounting for said brake discs to permit such rotation and which is adapted to drive said brake discs and to have exerted thereon a braking effect by said brake discs when the disc brake is actuated;
- c) at least three friction elements adapted to frictionally engage braking surfaces on opposite sides of said brake discs to effect braking on actuation of actuation means therefor;
- d) said brake discs being axially slidable in use with respect to said mounting therefor under the action of said friction elements and said actuation means therefor during braking;
- e) resilient means being provided at circumferentially spaced positions around said brake discs and adapted to act between brake discs and said rotatable mounting therefor at said positions.
- characterised by;
- f) said resilient means being adapted axially to straddle said at least two discs at said circumferentially spaced positions around said at least two brake discs, and said resilient means when so located being adapted to apply a resilient bias directed between said discs and said rotatable mounting for said brake discs;
- and
- g) the arrangement being such that during use of said brake said resilient means and said at least two brake discs simultaneously move as a unit in the axial direction when said actuation means is actuated.
A spot-type disc brake comprising resilient means adapted to act between at least two brake discs and a rotatable mounting therefor at circumferentially spaced positions around said discs, and said resilient means being adapted to apply a resilient bias directed between the brake discs and the rotatable mounting therefor, said resilient means being adapted to straddle axially said discs and to cause each of said discs simultaneously to move axially with respect to said mounting for said discs upon initiation of braking.
Dependencies are inferred from the claim text.