GB2116655A - Disc brakes - Google Patents

Disc brakes Download PDF

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Publication number
GB2116655A
GB2116655A GB08207952A GB8207952A GB2116655A GB 2116655 A GB2116655 A GB 2116655A GB 08207952 A GB08207952 A GB 08207952A GB 8207952 A GB8207952 A GB 8207952A GB 2116655 A GB2116655 A GB 2116655A
Authority
GB
United Kingdom
Prior art keywords
caliper
disc
lug
pin
stanchion
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.)
Granted
Application number
GB08207952A
Other versions
GB2116655B (en
Inventor
Richard Arnold Bass
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.)
Automotive Products PLC
Original Assignee
Automotive Products PLC
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 Automotive Products PLC filed Critical Automotive Products PLC
Priority to GB08207952A priority Critical patent/GB2116655B/en
Priority to IN571/DEL/82A priority patent/IN159271B/en
Priority to DE8282304135T priority patent/DE3266841D1/en
Priority to EP82304135A priority patent/EP0074181B1/en
Priority to JP1982128685U priority patent/JPS5896137U/en
Publication of GB2116655A publication Critical patent/GB2116655A/en
Application granted granted Critical
Publication of GB2116655B publication Critical patent/GB2116655B/en
Priority to US06/825,697 priority patent/US4716993A/en
Expired legal-status Critical Current

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
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/02—Rims characterised by transverse section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L1/00—Brakes; Arrangements thereof
    • B62L1/005—Brakes; Arrangements thereof constructional features of brake elements, e.g. fastening of brake blocks in their holders
    • 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
    • F16D55/22—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 by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/228—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 by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side
    • 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
    • F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
    • 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
    • F16D2055/0075—Constructional features of axially engaged brakes
    • F16D2055/0091—Plural actuators arranged side by side on the same side of the rotor
    • 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
    • F16D2065/1368—Connection interlocking with relative movement both radially and 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
    • F16D2065/1372—Connection outer circumference
    • 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

Abstract

A disc brake (e.g. for motorcycles) has a caliper (11) secured to a fixed support (as shown a fork stanchion (12)) by a pair of fastening members (35) and (41), of which at least one (41) engages in an open ended slot (40) in either caliper (11) or the support (12) so that the caliper (11) can be released from the support (12) without completely releasing the one member (41). As shown, member (41) is a pinch bolt and the slot (40) is in a lug (32) on fork stanchion (12). The other fastening member (35) is a quick release pin operable by a wire ring (38) and holding arm (29) of caliper (11) in a slot (34) in a lug (31) - pin (35) may be replaced by a bolt (Figure 4). Caliper (11) is shown with two opposed hydraulic cylinders and straddling the inner periphery of the disc - it may bridge the outer periphery. Pads are held in the caliper by split pins or spring clips (Figure 2). <IMAGE>

Description

SPECIFICATION Disc brakes This invention relates to disc brakes and in particular but not exclusively to brakes for motor cycles.
A problem associated with motor cycle disc brakes in particular, is that if a wheel has to be removed to make for example a puncture repair then it is usually necessary to remove the brake caliper from its fixed support, usually a fork leg stanchion to enable the wheel to be removed. Also on some motor cycles it may be necessary to remove the caliper from its supportto enable friction material pads to be replaced. This is especially so for those brakes described in our co-pending application 81 26424 in which a large annular brake disc is secured by its outer periphery to the rim of a wheel and the brake caliper straddles the inner periphery of the disc.
The present invention seeks to provide a caliper that is easily removable from its fixed support.
Accordingly there is provided a disc brake in which a caliper body is secured to a fixed support by a pair of spaced fastening members wherein at least one of said fastening members engages in an open ended slot in one of the caliper body and support so that the body can be released from the support without the complete release of the one fastening member from the other of the caliper body and support.
Conveniently the other fastening member is a quick release pin which passes through an aperture in the caliper body.
The invention will be described by way of example and with reference to the accompanying drawings in which: Fig. 1 is an elevation of a sector of a motor cycle fork and wheel showing a caliper according to this invention fitted in situ.
Fig. 2 is a radial section through a wheel and the caliper.
Fig. 3 is a section on the Line Ill-Ill in Fig. 2 showing a quick release pin.
Fig. 4 is a section on the line Ill-Ill but showing use of a bolt instead of a quick release pin.
Fig. 5 is a section on the line V-V in Fig. 1; and Fig. 6 shows the lug on the fixed support as is utilised in the herein disclosed disc brake.
With reference to Figs. 1 to 6, a disc brake caliper 11 is mounted on the stanchion 12 of a motor cycle fork leg. The brake caliper 12 is of the type in which two opposed hydraulic cylinders 13 are arranged to press friction pads 14 against opposed friction faces of a disc 15.
The disc 15 is an annular disc having its outer peripheral margin fastened directiy to a wheel rim 16. The wheel 16 is made of cast aluminium alloy but could be formed by other methods. There are ten or twelve circumferentially spaced bolts 17 which are used for fastening the disc to the wheel. The method used for bolting the disc 15 to the rim is the subject of our pending application number 81 26424.
The caliper 12 straddles the inner periphery of the disc and the pads 14 are held in the caliper by split pins 21 which pass axially through the bottom of the caliper. The pads 14 are withdrawn from the caliper by removing the split pins 21 and withdrawing the pads radially outwardly relative to the wheel. Alternatively the pads may be held in position by spring clips 23 (shown in dotted outline) which pass through the caliper in the same manner as the split pins 21, but clip over a detent 24 on the outer surface of the caliper. The clip 24 provides a quick means of releasing the pads from the caliper by merely withdrawing the spring clip 23 over the detent 24.
The caliper 11 is secured to the fork stanchion 12 on that side of the fork such that on application of the brake with motor cycle moving forward the torque load pushes the caliper against the stanchion. The caliper 11 has two spaced arms 29 and 30 which are secured to a pair of lugs 31 and 32 respectively on the fork stanchion 12.
The upper arm 31 is received in slot 34 in the lug 31 and is held in place by a proprietory quick release pin 35 known as an AVDEL pin Fig. 3. The AVDEL pin has a pair of diametrically opposed balls 37 which can be moved radially in and outer of the pin body to either lock or release the pin from its desired position. The pin is operated by means of a wire ring 38 attached to a spring loaded case in the pin.
The lower arm 30 (Fig. 5) has a slot 39 therein which receives the lug 32 on the stanchion 12. The lug 32 (Fig. 6) has an open ended slot 40 therein and a pinch bolt 41 passesthrough the caliper arm and the slot 40 in the lug 32 and can clamp the arm 30 around the lug when the caliper is secured in position.
To quickly remove the caliper from the stanchion 12 the quick release pin 35 is removed from the lug 31, and the pinch bolt 41 is slackened allowing the caliper to be swivelled and the open ended slot 39 allows the caliper to be removed from the slot 40 on the stanchion.
Such a quick release system is particularly useful on racing motor cycles in which a speed change of pads 14 may be necessary. For road bikes the quick release pin 35 may be replaced by a bolt 36 (see Fig.
4).
Whilst the invention has been described as being particularly useful on motor cycle disc brakes, and especially disc brakes of the type shown in our application 81 26424, it could be applied to conventional disc brakes in which a caliper bridges the outer periphery of a disc, and could be used on other.
vehicles.
1. A disc brake in which a caliper body is secured to a fixed support by a pair of spaced fastening members wherein at least one of said fastening members engages in an open ended slot in one of the caliper body and support so that the body can be released from the support without the complete release of the one fastening member from the other The drawing(s) originally filed was/were informal and the print here reproduced is taken from a later filed formal copy.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    SPECIFICATION Disc brakes This invention relates to disc brakes and in particular but not exclusively to brakes for motor cycles.
    A problem associated with motor cycle disc brakes in particular, is that if a wheel has to be removed to make for example a puncture repair then it is usually necessary to remove the brake caliper from its fixed support, usually a fork leg stanchion to enable the wheel to be removed. Also on some motor cycles it may be necessary to remove the caliper from its supportto enable friction material pads to be replaced. This is especially so for those brakes described in our co-pending application 81 26424 in which a large annular brake disc is secured by its outer periphery to the rim of a wheel and the brake caliper straddles the inner periphery of the disc.
    The present invention seeks to provide a caliper that is easily removable from its fixed support.
    Accordingly there is provided a disc brake in which a caliper body is secured to a fixed support by a pair of spaced fastening members wherein at least one of said fastening members engages in an open ended slot in one of the caliper body and support so that the body can be released from the support without the complete release of the one fastening member from the other of the caliper body and support.
    Conveniently the other fastening member is a quick release pin which passes through an aperture in the caliper body.
    The invention will be described by way of example and with reference to the accompanying drawings in which: Fig. 1 is an elevation of a sector of a motor cycle fork and wheel showing a caliper according to this invention fitted in situ.
    Fig.
  2. 2 is a radial section through a wheel and the caliper.
    Fig.
  3. 3 is a section on the Line Ill-Ill in Fig. 2 showing a quick release pin.
    Fig. 4 is a section on the line Ill-Ill but showing use of a bolt instead of a quick release pin.
    Fig. 5 is a section on the line V-V in Fig. 1; and Fig. 6 shows the lug on the fixed support as is utilised in the herein disclosed disc brake.
    With reference to Figs. 1 to 6, a disc brake caliper 11 is mounted on the stanchion 12 of a motor cycle fork leg. The brake caliper 12 is of the type in which two opposed hydraulic cylinders 13 are arranged to press friction pads 14 against opposed friction faces of a disc 15.
    The disc 15 is an annular disc having its outer peripheral margin fastened directiy to a wheel rim 16. The wheel 16 is made of cast aluminium alloy but could be formed by other methods. There are ten or twelve circumferentially spaced bolts 17 which are used for fastening the disc to the wheel. The method used for bolting the disc 15 to the rim is the subject of our pending application number 81 26424.
    The caliper 12 straddles the inner periphery of the disc and the pads 14 are held in the caliper by split pins 21 which pass axially through the bottom of the caliper. The pads 14 are withdrawn from the caliper by removing the split pins 21 and withdrawing the pads radially outwardly relative to the wheel. Alternatively the pads may be held in position by spring clips 23 (shown in dotted outline) which pass through the caliper in the same manner as the split pins 21, but clip over a detent 24 on the outer surface of the caliper. The clip 24 provides a quick means of releasing the pads from the caliper by merely withdrawing the spring clip 23 over the detent 24.
    The caliper 11 is secured to the fork stanchion 12 on that side of the fork such that on application of the brake with motor cycle moving forward the torque load pushes the caliper against the stanchion. The caliper 11 has two spaced arms 29 and 30 which are secured to a pair of lugs 31 and 32 respectively on the fork stanchion 12.
    The upper arm 31 is received in slot 34 in the lug 31 and is held in place by a proprietory quick release pin 35 known as an AVDEL pin Fig. 3. The AVDEL pin has a pair of diametrically opposed balls 37 which can be moved radially in and outer of the pin body to either lock or release the pin from its desired position. The pin is operated by means of a wire ring 38 attached to a spring loaded case in the pin.
    The lower arm 30 (Fig. 5) has a slot 39 therein which receives the lug 32 on the stanchion 12. The lug 32 (Fig. 6) has an open ended slot 40 therein and a pinch bolt 41 passesthrough the caliper arm and the slot 40 in the lug 32 and can clamp the arm 30 around the lug when the caliper is secured in position.
    To quickly remove the caliper from the stanchion 12 the quick release pin 35 is removed from the lug 31, and the pinch bolt 41 is slackened allowing the caliper to be swivelled and the open ended slot 39 allows the caliper to be removed from the slot 40 on the stanchion.
    Such a quick release system is particularly useful on racing motor cycles in which a speed change of pads 14 may be necessary. For road bikes the quick release pin 35 may be replaced by a bolt 36 (see Fig.
  4. 4. A disc brake substantially as described herein and with reference to the accompanying drawings.
    4).
    Whilst the invention has been described as being particularly useful on motor cycle disc brakes, and especially disc brakes of the type shown in our application 81 26424, it could be applied to conventional disc brakes in which a caliper bridges the outer periphery of a disc, and could be used on other.
    vehicles.
    1. A disc brake in which a caliper body is secured to a fixed support by a pair of spaced fastening members wherein at least one of said fastening members engages in an open ended slot in one of the caliper body and support so that the body can be released from the support without the complete release of the one fastening member from the other The drawing(s) originally filed was/were informal and the print here reproduced is taken from a later filed formal copy.
    of the caliper body and support.
    2. A disc brake as claimed in Claim 1, wherein the open-ended slot is in a lug on the fixed support and the fastening means pinches said lug between two portions of the caliper body.
    3. A disc brake as claimed in Claim 1, wherein the other fastening member is a quick release pin which passes through an aperture in the caliper body.
GB08207952A 1981-08-29 1982-03-18 Disc brakes Expired GB2116655B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB08207952A GB2116655B (en) 1982-03-18 1982-03-18 Disc brakes
IN571/DEL/82A IN159271B (en) 1981-08-29 1982-07-27
DE8282304135T DE3266841D1 (en) 1981-08-29 1982-08-05 Disc brakes
EP82304135A EP0074181B1 (en) 1981-08-29 1982-08-05 Disc brakes
JP1982128685U JPS5896137U (en) 1981-08-29 1982-08-27 motorcycle disc brake
US06/825,697 US4716993A (en) 1981-08-29 1986-02-04 Disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08207952A GB2116655B (en) 1982-03-18 1982-03-18 Disc brakes

Publications (2)

Publication Number Publication Date
GB2116655A true GB2116655A (en) 1983-09-28
GB2116655B GB2116655B (en) 1985-10-23

Family

ID=10529104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08207952A Expired GB2116655B (en) 1981-08-29 1982-03-18 Disc brakes

Country Status (1)

Country Link
GB (1) GB2116655B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB879412A (en) * 1959-06-03 1961-10-11 Bendix Corp Disk brake
GB920196A (en) * 1958-09-22 1963-03-06 Automotive Prod Co Ltd Improvements in disc brake assemblies
GB1238601A (en) * 1968-10-31 1971-07-07
GB1307788A (en) * 1970-09-29 1973-02-21 Bendix Corp Disc brake
GB1346860A (en) * 1971-06-18 1974-02-13 Dba Sa Disc brake
GB1562826A (en) * 1975-10-31 1980-03-19 Akebono Brake Ind Floating caliper disc brakes
GB1593353A (en) * 1977-02-22 1981-07-15 Sumitomo Electric Industries Disc brake arrangement for motor vehicles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB920196A (en) * 1958-09-22 1963-03-06 Automotive Prod Co Ltd Improvements in disc brake assemblies
GB879412A (en) * 1959-06-03 1961-10-11 Bendix Corp Disk brake
GB1238601A (en) * 1968-10-31 1971-07-07
GB1307788A (en) * 1970-09-29 1973-02-21 Bendix Corp Disc brake
GB1346860A (en) * 1971-06-18 1974-02-13 Dba Sa Disc brake
GB1562826A (en) * 1975-10-31 1980-03-19 Akebono Brake Ind Floating caliper disc brakes
GB1593353A (en) * 1977-02-22 1981-07-15 Sumitomo Electric Industries Disc brake arrangement for motor vehicles

Also Published As

Publication number Publication date
GB2116655B (en) 1985-10-23

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Legal Events

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PCNP Patent ceased through non-payment of renewal fee