WO2002031375A1 - Multiple disc brakes - Google Patents
Multiple disc brakes Download PDFInfo
- Publication number
- WO2002031375A1 WO2002031375A1 PCT/ZA2001/000156 ZA0100156W WO0231375A1 WO 2002031375 A1 WO2002031375 A1 WO 2002031375A1 ZA 0100156 W ZA0100156 W ZA 0100156W WO 0231375 A1 WO0231375 A1 WO 0231375A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- discs
- disc
- brake
- rotors
- splines
- Prior art date
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
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/025—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members with two or more rotating discs at least one of them being located axially
-
- 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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
-
- 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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D2065/13—Parts or details of discs or drums
- F16D2065/1304—Structure
- F16D2065/1316—Structure radially segmented
-
- 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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D2065/13—Parts or details of discs or drums
- F16D2065/134—Connection
- F16D2065/1356—Connection interlocking
- F16D2065/1364—Connection interlocking with relative movement axially
-
- 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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D2065/13—Parts or details of discs or drums
- F16D2065/134—Connection
- F16D2065/1392—Connection elements
-
- 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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D2065/13—Parts or details of discs or drums
- F16D2065/134—Connection
- F16D2065/1392—Connection elements
- F16D2065/1396—Ancillary resilient elements, e.g. anti-rattle or retraction springs
Definitions
- This invention relates to multiple disc brakes for all types of automotive vehicles.
- the multiple discs braking system is applicable to all transportation fields, small, medium and large passenger vehicles. It is particularly applicable to vehicles that are subjected to continual heavy braking namely taxis, ambulances, police vehicles and medium to heavy-duty transport trucks.
- the conventional disc/drum braking systems in use today make use of a single disc/rotor per wheel/axle generally on the front wheels of the vehicles and drum brakes on the rear wheels. Prolonged heavy braking causes severe heat build up in the discs/rotors and brake pads which leads to brake fade resulting in increased braking distances and reduced stopping/braking power. It is an object of this invention to provide a device to minimize or even eliminate this disadvantage.
- the multiple discs braking system works on the principle, of using two or more discs/rotors sandwiched between the brake pads/friction material and the hydraulic caliper. Thus by applying and maintaining a constant hydraulic pressure the stopping / braking power obtained is multiplied by the number of discs/rotors that are subjected to this pressure.
- Example No.l
- One flat piece of metal is placed in a hydraulic press and clamped by a 50Kg/cm 2 force piston, is subjected to the same pressure of the piston.
- each individual piece of metal is subjected to the same pressure of the piston. With the difference being, the number of pieces of metal placed in the press multiplies that the actual work produced without altering the initial pressure of the piston 50Kg/cm 2 .
- Vehicle Speed 100 Km/h.
- Vehicle Speed 100 Km/h.
- Braking Distance 30 m. Braking Distance. 10 m.
- the multiple disc brakes are made of a very simple construction. They are constructed of two or more discs/rotors and additional brake pads/friction material allocated between the discs/rotors as stated below.
- This disc is assembled to the wheel / axle, it has splines on the outside part of the hub. (Fig l;No. 2)
- This disc or discs are assembled on the drive disc and slide over the drive disc's hub; they have splines on the inside of the hub and thus are coupled to the drive disc. (Fig 2; No.3)
- the supplementary disc or discs can be coupled to the drive disc by either the use of splines (Fig.l; Fig.2); Keyways, two at 180 degrees, three at 120 degrees, four at 90 degrees (Fig.4) and Pins (Fig.5 Pins locked on the drive disc and free on the supplementary disc; Fig.6 Pins locked on the supplementary disc and free on the drive disc.)
- the single brake pads are used on the outside of both discs, whereas the double brake pad is allocated in between the drive disc and the supplementary disc. (Fig. 3)
- the flat springs can be positioned at 45; 60; 90 and 120 degrees depending on the number of splines.
- the flat springs are inserted to avoid swing and to eliminate free movement supplementary disc or discs.
- the springs are also inserted to compensate for tolerance existing between the two splines, which may increase due to wear and also to decrease vibrations and noise caused by wearing down of the splines. (Fig.3; No.14)
- Friction Material / Brake Pad LIST OF COMPONENTS CONTINUED.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The Multiple disc braking system works on the principle of two or more discs/rotors, namely a supplementary disc / discs which slide over the hub of the drive disc and are coupled through the use of splines, key ways or pins on the hub of the drive disc. The two or more discs are sandwiched between the brake pads / friction material and hydraulic calipers by using two single sided brake pads on either side of the discs and a double sided brake pad inserted between the discs, these brake pads are mounted / anchored onto the brake caliper. A hydraulic pressure is applied as per normal braking however due to the increased effective contact area (double the effective coefficient of friction) between the friction material and discs/rotors exceptional stopping power is achieved. The increased surface area of the multiple discs/rotors contributes to lower brake temperatures, improved heat absorption and dissipation, which greatly reduces brake fade during repeated heavy braking applications and increases the life expectancy of the brake pads/friction material.
Description
MULTIPLE DISC BRAKES
1. TECHNICAL FIELD.
This invention relates to multiple disc brakes for all types of automotive vehicles. The multiple discs braking system is applicable to all transportation fields, small, medium and large passenger vehicles. It is particularly applicable to vehicles that are subjected to continual heavy braking namely taxis, ambulances, police vehicles and medium to heavy- duty transport trucks.
2. BACKGROUND ART OF THE INVENTION.
The conventional disc/drum braking systems in use today make use of a single disc/rotor per wheel/axle generally on the front wheels of the vehicles and drum brakes on the rear wheels. Prolonged heavy braking causes severe heat build up in the discs/rotors and brake pads which leads to brake fade resulting in increased braking distances and reduced stopping/braking power. It is an object of this invention to provide a device to minimize or even eliminate this disadvantage.
3. DISCLOSURE OF THE INVENTION.
The multiple discs braking system works on the principle, of using two or more discs/rotors sandwiched between the brake pads/friction material and the hydraulic caliper. Thus by applying and maintaining a constant hydraulic pressure the stopping / braking power obtained is multiplied by the number of discs/rotors that are subjected to this pressure.
Example No.l
One flat piece of metal is placed in a hydraulic press and clamped by a 50Kg/cm2 force piston, is subjected to the same pressure of the piston.
Example No.2
If three flat pieces of metal are placed one on top of the other in the same press and are clamped with the same 50Kg/cm2 force piston, each individual piece of metal is subjected to the same pressure of the piston. With the difference being, the number of pieces of metal placed in the press multiplies that the actual work produced without altering the initial pressure of the piston 50Kg/cm2.
Applying the same principle to the disc brakes of a vehicle by adding one or two more discs/rotors per axle, it is possible to double or triplicate the braking efficiency without altering the initial hydraulic pressure on the master brake piston.
Brakes with multiple discs effectively multiply the work done, divide the braking time and distance by the number of discs employed.
The differences of brakes with only one disc and three discs can be illustrated by the following examples. (Note calculations and measurements used are only for example purposes.)
Example No.3a Example No.3b
Number of Discs. 1. Number of Discs. 3.
Pressure on Piston. 10 Kg/cm2. Pressure on Piston. 10 Kg/cm2
Vehicle Speed. 100 Km/h. Vehicle Speed. 100 Km/h.
Braking Distance. 30 m. Braking Distance. 10 m.
Braking Time. 10 Sec. Braking Time. 3.2 Sec.
4. DESCRIPTION OF MULTIPLE DISCS BRAKES.
The multiple disc brakes are made of a very simple construction. They are constructed of two or more discs/rotors and additional brake pads/friction material allocated between the discs/rotors as stated below.
A. Drive Disc.
This disc is assembled to the wheel / axle, it has splines on the outside part of the hub. (Fig l;No. 2)
B. Supplementary Discs.
This disc or discs are assembled on the drive disc and slide over the drive disc's hub; they have splines on the inside of the hub and thus are coupled to the drive disc. (Fig 2; No.3)
The supplementary disc or discs can be coupled to the drive disc by either the use of splines (Fig.l; Fig.2); Keyways, two at 180 degrees, three at 120 degrees, four at 90 degrees (Fig.4) and Pins (Fig.5 Pins locked on the drive disc and free on the supplementary disc; Fig.6 Pins locked on the supplementary disc and free on the drive disc.)
C. Double and Single Brake Pads/Friction Material.
The single brake pads are used on the outside of both discs, whereas the double brake pad is allocated in between the drive disc and the supplementary disc. (Fig. 3)
D. Flat Springs.
A minimum of three springs, are inserted between the male splines of the drive disc and the female splines if the supplementary disc or discs. (Fig.3; No.14)
Flat Springs Continued.
The flat springs can be positioned at 45; 60; 90 and 120 degrees depending on the number of splines. The flat springs are inserted to avoid swing and to eliminate free movement supplementary disc or discs. The springs are also inserted to compensate for tolerance existing between the two splines, which may increase due to wear and also to decrease vibrations and noise caused by wearing down of the splines. (Fig.3; No.14)
LIST OF COMPONENTS.
Figure. 1 No. (1) Drive Disc.
No. (2) Outside Splines.
No. (3) Hole of Wheel Bolts.
Figure. 2 No. (2) Supplementary Disc.
No. (3) Inside Splines.
Figure. 3 No. (1) Drive Disc.
No. (2) Supplementary Disc.
No. (6) Caliper.
No. (7) Oil Supply.
No. (8) Oil Hole.
No. (9) Bleed Nipple.
No. (10) Cylinders.
No. (11) Pistons.
No. (12) Friction Material Backing / Bonding Plate
No. (13) Friction Material / Brake Pad.
No. (14) Flat Springs.
No. (15) Caliper Mounting Point.
No. (16) Friction Material Backing / Bonding Plate
No. (17) Friction Material / Brake Pad.
LIST OF COMPONENTS CONTINUED.
Coupling Components Figures 4; 5 and 6.
Figure. 4 No. (1) Drive Disc.
No. (2) Supplementary Disc.
No. (3) Key.
No. (4) Key Way and Flat Spring Housings.
Figure. 5 No. (1) Drive Disc.
No. (2) Supplementary Disc.
No. (5) Pins Locked to Drive Disc.
No. (6) Pin Housings.
No. (7) Flat Springs Housings.
Figure. 6 No. (1) Drive Disc.
No. (2) Supplementary Disc.
No. (8) Pins Housing.
No. (9) Pins Locked to the Supplementary Disc
No. (10) Flat Springs Housings.
Claims
LAIMS.
1. . A multiple disc braking system having two or more discs / rotors sandwiched between two single sided bralςe^pads, one double sided brake pad and a hydraulic caliper. (Fig. 3)
2. The interlock of the discs characterized by use of splines, key ways and pins that makes it possible to couple the drive disc to the supplementary disc / discs thus creating the multiple disc brake.
3. The central double brake pad characterized by the bonding of the friction material on both sides of the steel backing / bonding plate. This transmits the braking action to both the drive disc and the supplementary disc / discs.
4. The flat springs characterized by the specific form which allows it to hold itself in position on the supplementary disc / discs. The springs are inserted to compensate for the existing tolerance between the two splines, which may increase due to wear and to decrease vibrations and noise caused by the wearing down of the splines.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002213523A AU2002213523A1 (en) | 2000-10-11 | 2001-10-11 | Multiple disc brakes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA20005569 | 2000-10-11 | ||
ZA200005569 | 2000-10-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002031375A1 true WO2002031375A1 (en) | 2002-04-18 |
Family
ID=25588939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ZA2001/000156 WO2002031375A1 (en) | 2000-10-11 | 2001-10-11 | Multiple disc brakes |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2002213523A1 (en) |
WO (1) | WO2002031375A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1234992A2 (en) * | 2001-02-26 | 2002-08-28 | Meritor Heavy Vehicle Systems, LLC | A brake rotor assembly and caliper assembly |
WO2004025133A1 (en) * | 2002-09-10 | 2004-03-25 | Haldex Brake Products Ab | Support for sliding brake discs |
GR1009752B (en) * | 2019-05-13 | 2020-05-29 | Αλεξανδρος Κωνσταντινου Αγγελιδακης | Car's brakes with multiplate disc brakes |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2165817A1 (en) * | 1970-12-30 | 1972-08-03 | Isuzu Motors Ltd | Partial disc brake |
US3707207A (en) * | 1969-09-06 | 1972-12-26 | Aisin Seiki | Spot disc brakes for vehicles |
JPS5712135A (en) * | 1980-06-25 | 1982-01-22 | Nissin Kogyo Kk | Multiple-disk brake for vehicle |
US4576255A (en) * | 1983-06-30 | 1986-03-18 | Societe Anonyme D.B.A. | Multi-disc brakes |
JPS61112833A (en) * | 1984-11-05 | 1986-05-30 | Nippon Air Brake Co Ltd | Disc brake |
US4798268A (en) * | 1986-10-29 | 1989-01-17 | Bendix France | Multiple disc brake |
US5437351A (en) * | 1993-12-23 | 1995-08-01 | Rexnord Corporation | Friction disk brake mechanism for electric motor |
-
2001
- 2001-10-11 WO PCT/ZA2001/000156 patent/WO2002031375A1/en active Application Filing
- 2001-10-11 AU AU2002213523A patent/AU2002213523A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3707207A (en) * | 1969-09-06 | 1972-12-26 | Aisin Seiki | Spot disc brakes for vehicles |
DE2165817A1 (en) * | 1970-12-30 | 1972-08-03 | Isuzu Motors Ltd | Partial disc brake |
JPS5712135A (en) * | 1980-06-25 | 1982-01-22 | Nissin Kogyo Kk | Multiple-disk brake for vehicle |
US4576255A (en) * | 1983-06-30 | 1986-03-18 | Societe Anonyme D.B.A. | Multi-disc brakes |
JPS61112833A (en) * | 1984-11-05 | 1986-05-30 | Nippon Air Brake Co Ltd | Disc brake |
US4798268A (en) * | 1986-10-29 | 1989-01-17 | Bendix France | Multiple disc brake |
US5437351A (en) * | 1993-12-23 | 1995-08-01 | Rexnord Corporation | Friction disk brake mechanism for electric motor |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 006, no. 071 (M - 126) 6 May 1982 (1982-05-06) * |
PATENT ABSTRACTS OF JAPAN vol. 010, no. 301 (M - 525) 14 October 1986 (1986-10-14) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1234992A2 (en) * | 2001-02-26 | 2002-08-28 | Meritor Heavy Vehicle Systems, LLC | A brake rotor assembly and caliper assembly |
EP1234992A3 (en) * | 2001-02-26 | 2004-03-24 | Meritor Heavy Vehicle Systems, LLC | A brake rotor assembly and caliper assembly |
WO2004025133A1 (en) * | 2002-09-10 | 2004-03-25 | Haldex Brake Products Ab | Support for sliding brake discs |
GR1009752B (en) * | 2019-05-13 | 2020-05-29 | Αλεξανδρος Κωνσταντινου Αγγελιδακης | Car's brakes with multiplate disc brakes |
Also Published As
Publication number | Publication date |
---|---|
AU2002213523A1 (en) | 2002-04-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3375906A (en) | Support means for a calipertype disk brake | |
US6457567B1 (en) | Leaf spring for a disc brake | |
US20020038742A1 (en) | Slidable brake disc system | |
US6520296B1 (en) | Multiple disc brake system | |
US5507369A (en) | Reaction deam disc brake with sliding pins for vehicles | |
EP0944779B1 (en) | Disc brake | |
EP0611421B1 (en) | Disc brake caliper | |
US4345674A (en) | Disc brake pad retractor | |
US4509619A (en) | Shoe mounted disc brake caliper and shoe support structure | |
GB2049845A (en) | Disc Brakes | |
JP2003194112A5 (en) | ||
WO2002031375A1 (en) | Multiple disc brakes | |
SE0102534L (en) | Disc brake for land vehicles | |
EP1350039B1 (en) | Disc brake and method of operating the same | |
EP1173687B1 (en) | Disc brake with slidable brake discs | |
US3599758A (en) | Disc brake caliper | |
KR20210085405A (en) | Pressurization plate for face pressure adjustment of automobile disc brakes | |
US5366046A (en) | Full-lining disk brake with heat dissipation features | |
JP2659967B2 (en) | Disc brake mechanism | |
US20040211630A1 (en) | Disc brake | |
KR0112155Y1 (en) | Disk brake | |
JP3665099B2 (en) | Control device returning device for caliper brake device for railway vehicle | |
KR200388388Y1 (en) | Disk brake for vehicles | |
JPH0424578B2 (en) | ||
CN116181821A (en) | Disc brake system for applying pressure to one side and vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BR CA JP KP MK PL US ZA |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: JP |