AU617815B2 - Brake assembly - Google Patents
Brake assembly Download PDFInfo
- Publication number
- AU617815B2 AU617815B2 AU35854/89A AU3585489A AU617815B2 AU 617815 B2 AU617815 B2 AU 617815B2 AU 35854/89 A AU35854/89 A AU 35854/89A AU 3585489 A AU3585489 A AU 3585489A AU 617815 B2 AU617815 B2 AU 617815B2
- Authority
- AU
- Australia
- Prior art keywords
- disc
- brake
- axle
- discs
- friction
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
- F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
- F16D55/36—Brakes with a plurality of rotating discs all lying side by side
- F16D55/40—Brakes with a plurality of rotating discs all lying side by side actuated by a fluid-pressure device arranged in or one the brake
- F16D55/41—Brakes with a plurality of rotating discs all lying side by side actuated by a fluid-pressure device arranged in or one the brake by means of an intermediate leverage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
Description
COMMONWEALTH OF AUSTRALIA Patents Act 1952 b 18 COMPLETE SPECIFICATION (Original) FOR OFFICE USE Application Number: PI8544 Class Int. Class Lodged: 31/05/88 Complete Specification Lodged: Accepted: Published: t t t 4 t 4 4 CC I -I Priority: Related Art: TO BE COMPLETED BY APPLICANT Name of Applicant: MILAN EDGAR BOSICH Address of Applicant: 4 Esk Road, City Beach, in the State of Western Australia, Commonwealth of Australia.
Actual Inventor: MILAN EDGAR BOSICH Address for Service:- Wray Associates Primary Industry House 239 Adelaide Terrace Perth Western Australia 6000.
Complete Specification for the invention entitled: "BRAKE ASSEMBLY" The following statement is a full description of this invention, including the best method of performing it known to me:-- 1 a 001978 3 10589 Y IY_ ii Ili*lii~l_____ iY ii~ liiij 1_1_ 2 THIS INVENTION relates to a vehicle disc brake assembly and has particular application to a brake assembly using a multi-disc pack.
The invention provides a disc brake assembly comprising at least one brake disc mounted to a wheel hub which is rotatable with the wheel hub, at least one annular friction disc supported from the axle in spaced parallel relationship with the brake disc, said brake disc and said friction disc being axially movable relative to each other into and out of face to face engagement with each other, V and means for causing axial movement of said friction disc, I said axial movement means comprising a support engaging the V friction disc in opposed relation to the brake disc at a plurality of angularly spaced locations around the brake disc, such support being pivotally engaged by a drive means at a substantially central location thereof, and said drive j means being capable of causing axial movement of the Ssupport member to move the friction disc into engagement (with the brake disc, wherein the drive means comprises an axially movable element supported at one side of the axle and pivotally supporting one end of a link member, the j other end of the link member being pivotally supported from V the axle in opposed relation to the drive means, said support being pivotably connected at said central location to an intermediate point on the link member.
According to a preferred feature of the invention, a plurality of brake discs are supported on the axle to be rotatable with the wheel hub and axially movable thereon and a plurality of annular friction discs are supported from the axle to be movable axially with respect to the axle but incapable of rotation with respect to the axle, said friction discs being located in interposed relationship between said brake discs, with one friction disc being located to one side of said brake discs, and another friction disc located to the other side of the brake discs and in ±ixed relation thereto.
0.
CID
e wv 8$ r tr o 0*u~J+r -3- The brake assembly may also include a housing which extends between the axle and the wheel hub, said housing being fixed to said axle and being sealingly engaged with said wheel hub to define a sealed space enclosing the brake discs and the friction discs.
The invention will be more fully understood in the light of the following description of one specific embodiment. The description is made with reference to the accompanying drawing which is a schematic sectional elevation of the embodiment.
As shown in the drawing the embodiment relates to an o enclosed multi-pack disc brake assembly. The disc brake assembly 11 is associated with a wheel 12 having a central hub 13 supporting a tyre 14. The wheel 12 is supported from S°an axle 15 by suitable bearings 16. The axle 15 constitutes oan extension of an axle shaft 17. The brake assembly 11 comprises a substantially annular housing 18 fixed to the axial shaft 17 and which extends axially from the axial shaft 17 to enclose the adjacent portion of the hub 13 and to be sealingly and rotatably engaged therewith at its outer edge by a seal and/or bearing member 19. The outer circumferential face of the adjacent portion of the hub 13 which is enclosed within the housing 18 is formed with a set of axial splines (not shown) and supports a plurality of parallel brake discs 20 for rotation with the hub within the housing 18. The brake discs 20 are mounted to the hub over the splines thereon such that they are movable axially on the hub while being rotatable with the hub. The inner circumferential face of the housing 18 is also formed with a set of axial splines. A set of annular friction discs 21 are supported from the housing such that each axial face of each brake disc 20 is associated with a friction disc 21. The friction discs 21 are supported from the housing to be fixed rotationally by the splines in the housing to be movable axially within the housing into and out of engagement with the adjacent brake discs 3~ LI
Z)A
U 4 v a I I r P P- l .ENi -4- The innermost friction disc is associated with a substantially diametric support 22 which lies to each side of the axle shaft 17 and is fixed to the inner axial face of the innermost friction disc 21a to at least two Sdiametrically opposed locations thereon. The support 22 is formed with a bracket 23 which is located at one side of the axial shaft 17 and is pivotally supported from the centre of an elongate link member 24. One end of the link member 24 is pivotally supported from the inner axial face of the housing 18 while the other end of the link member 24 is pivotally mounted to the end of an axially movable drive member 25 which is associated with a drive means 26 to cause axial displacement of the drive member 6d** Vo 0 In the case of the embodiment shown in the drawing the drive means 26 comprises a shaft 27 having a threaded formation which is receivable within a bore formed in the drive member 25 which has a thread of corresponding configuration whereby on rotation of the threaded shaft the drive member is caused to move axially in accordance with such rotation and the threaded relationship between the threaded shaft 27 and the drive member 25. Such axial movement of the drive member is transmitted substantially equally to both sides of the innermost friction disc 21a through the support 22 and with sufficient movement of the Sdrive member all of the brake discs and friction discs are driven against the outermost fixed friction disc to apply the requisite braking force. It should be appreciated however that the drive means may take any desired form including a fluid operated cylinder.
As a result of the embodiment a brake assembly is provided which applies a substantially equal distribution of the loading to the friction discs within the disc pack on application of power to the drive means.
If desired the housing may contain a liquid in which the Sdiscs may be partially or wholly immersed to enhance heat 'h dissipation.
S 6r 4r pead. 0 0 *2 I 2 5 If desired the opposed axial brake disc and friction disc faces may be unlined, or lined with a suitable facing material to enhance the braking action. Such lining may also have thermal insulating properties. In addition where a disc is not lined with a frictional brake lining material it may be coated with thermal insulating material.
It should be appreciated that the scope of the present invention need not be limited to the particular scope of the embodiment described above.
I
t \a V7 ,j L "c" r a e *4a 411 Si r Ci C til .4 C.e,.tt a C' P Is t it
Claims (4)
1. A disc brake assembly comprising at least one brake seal( disc mounted to a wheel hub which is rotatable with the disc., jwheel hub, at least one annular friction disc supported from the axle in spaced parallel relationship with the 1'4. brake disc, said brake disc and said friction disc being said axially movable relative to each other into and out of face to face engagement with each other, and means for causing Kaxial movement of said friction disc, said axial movement us means comprising a support engaging the friction disc in co angularly spaced locations around the brake disc, such support being pivotally engaged by a drive means at a DATE] substantially central location thereof, and said drive means being capable of causing axial movement of the 1" support member to move the friction disc into engagement with the brake disc, wherein the drive means comprises an axially movable element supported at one side of the axle Wray and pivotally supporting one end of a link member, the Pert] other end of the link member being pivotally supported from Pate: the axle in opposed relation to the drive means, said support being pivotably connected at said central location to an intermediate point on the link member.
2. AI disc brake assembly according to claim 1 wherein a I plurality of brake discs are supported on the axle to be rotatable with the wheel hub and axially movable thereon and a plurality of annular friction discs are supported if from the axle to be movable axially with respect to the j axle but incapable of rotation with respect to the axle, t said friction discs being located in interposed relationship between said brake discs, with one friction disc being located to one side of said brake discs, and another friction disc located to the other side of the brake discs and in fixed relation thereto.
3. A disc brake assembly according to claim 1 or claim 2, C- further including a housing which extends between the axle U "D U; a. ,.0 riF c i 7 and the wheel hub, said housing being fixed to said axle and being sealingly engaged with said wheel hub to define a sealed space enclosing the brake discs and the friction discs.
4. A disc brake assembly according to claim 3 wherein said sealed space contains a liquid. A disc brake assembly according to claim 1 substantially as herein described with reference to the accompanying drawings. S DATED this TWENTY SIXTH day of SEPTEMBER 1991 MILAN EDGAR BOSICH Applicant. Wray Associates, Perth, Western Australia, Patent Attorneys for Applicant. c 04 *b 0 J 04 04 4 544*0 0 Iv 4 u 040 0* 00 44 4 05IW J 00600044 11 ^r 'i 9 C I E +s L? rit t i r u r
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPI854488 | 1988-05-31 | ||
| AUPI8544 | 1988-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU3585489A AU3585489A (en) | 1989-12-07 |
| AU617815B2 true AU617815B2 (en) | 1991-12-05 |
Family
ID=3773121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU35854/89A Expired AU617815B2 (en) | 1988-05-31 | 1989-05-31 | Brake assembly |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU617815B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019116425A1 (en) * | 2019-06-18 | 2020-12-24 | Schaeffler Technologies AG & Co. KG | Wheel module for a vehicle, vehicle with the wheel module and method for braking a rotating wheel of a wheel module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU155287B2 (en) * | 1952-01-16 | 1952-03-20 | Harry Ferguson Research Limited | Improvements in or relating to motor driven vehicles |
| WO1982002077A1 (en) * | 1980-12-12 | 1982-06-24 | Jirousek Norman F | Parking disc brake actuator |
-
1989
- 1989-05-31 AU AU35854/89A patent/AU617815B2/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU155287B2 (en) * | 1952-01-16 | 1952-03-20 | Harry Ferguson Research Limited | Improvements in or relating to motor driven vehicles |
| AU155427B2 (en) * | 1952-01-16 | 1952-03-20 | Improvements in or relating to motor driven vehicles | |
| WO1982002077A1 (en) * | 1980-12-12 | 1982-06-24 | Jirousek Norman F | Parking disc brake actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3585489A (en) | 1989-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired | ||
| NA | Applications received for extensions of time, section 223 |
Free format text: AN APPLICATION TO EXTEND THE TIME FROM 20020531 TO 20030531 IN WHICH TO PAY A RENEWAL FEE HAS BEEN LODGED |
|
| NB | Applications allowed - extensions of time section 223(2) |
Free format text: THE TIME IN WHICH TO PAY A RENEWAL FEE HAS BEEN EXTENDED TO 20030531 |