GB2039646A - Disc brake - Google Patents
Disc brake Download PDFInfo
- Publication number
- GB2039646A GB2039646A GB7943084A GB7943084A GB2039646A GB 2039646 A GB2039646 A GB 2039646A GB 7943084 A GB7943084 A GB 7943084A GB 7943084 A GB7943084 A GB 7943084A GB 2039646 A GB2039646 A GB 2039646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caliper
- supporting member
- projections
- pin
- disc
- 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
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
- F16D55/22—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
- F16D55/224—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 common actuating member for the braking members
- F16D55/225—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 common actuating member for the braking members the braking members being brake pads
- F16D55/226—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 common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
- F16D55/2265—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 common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
-
- 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
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0041—Resilient elements interposed directly between the actuating member and the brake support, e.g. anti-rattle springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
In a disc brake with a caliper (3) slidingly supported on a supporting member (1) the caliper and the supporting member have respective projections (10,9) which are inter-connected by a U-shaped pin (11). The U-shaped pin has leg portions which pass through the projections in the direction of the relative sliding movement between the caliper and the supporting member. In the embodiment shown the U- shaped pin prevents rotation of the caliper member about a pin (5) and the U-shaped pin may be removed to give access to the friction pads. Pin (11) is formed of a rod member, or a plate member. <IMAGE>
Description
SPECIFICATION
Disc brake
This invention concerns disc brakes of the kind including a stationary supporting member, a caliper slidingly supported on the supporting member and straddling a portion of the circumference of a rotatable disc, a piston received in one arm portion of the caliper for pressing one of friction pads against the disc, the other of friction pads being pressed against the disc by the other arm portion of the caliper.
A conventional disc brake of the aforementioned kind includes two parallel pins spaced in the direction of the circumference of the disc for guiding the sliding movement of the caliper with respect to the supporting member, thus, in exchanging the friction pads, it has been necessary to remove at least one pin and to swingingly move the caliper around the other pin, therefore, the friction pad exchanging operations have been troublesome and time consuming.
An object of the present invention is to solve the shortcoming aforementioned.
According to the present invention there is provided a disc brake comprising a stationary supporting member, a caliper slidingly supported on the supporting memberforstraddling a portion of the circumference of a rotatable disc which is engageable by a pair of friction pads, a piston received in one arm portion of the caliper for pressing one of the friction pads against the disc, and the other of the friction pads being pressed against the disc by the other arm portion of the caliper, respective projections being provided on the caliper and on the supporting member, the projections being intercon
nected with one another by a U-shaped pin having two leg portions which pass respectively through the
projections in the direction of relative sliding move
ment between the caliper and the supporting
member.
The present invention will now be described further by way of example only, with reference to the
accompanying drawings, in which:
Figure 1 is a front view of a disc brake according to the invention;
Figure 2 is a partially broken plan view of the disc
brake of Figure 1;
Figure 3 is a sectional view taken along line Ill-Ill in
Figure 2;
Figure 4 is a sectional view taken along line IV-IV in
Figure 2; and
Figure 5 is a sectional view taken along line V-V in
Figure 2.
The disc brake shown in the drawings comprises a
stationary supporting member 1 adapted to be
secured to a non-rotatable part of a vehicle and
having circumferentially spaced limb portions la
and lb which straddle respectively the circumfer
ence of a rotatable disc 6. A guide bore or a pin
receiving bore 2 is formed in one limb portion la of
the supporting member 1 for receiving slidingly a
pin 5 which is secured to a caliper 3 by a bolt 4
passing through a bore in the caliper. A cylinder (not shown) for receiving therein a piston (not shown) is formed in one arm portion 3b of the caliper 3, and the piston acts directly on one friction pad 8.The caliper 3 also has another arm portion 3a which straddles the circumference of the disc 6 and extends to the rear side of another friction pad 7 so as to press the friction pad 7 against the disc 6 in applying the brake. The friction pads 7 and 8 are slidably mounted on the supporting member 1 by means of lugs which are formed on circumferentially opposing inner sides of the limb portions la and ib. The drag from the friction pads which occurs during braking being transmitted directly to the supporting member.
According to the invention, there is formed on the upper or radially outer end of the other limb portion ib a projection 9 which defines a recess 9' between the upper end of the limb portion 1b. Two axially spaced projections 10 are formed on the caliper 3. A
U-shaped pin 11 formed of a stiff rod material such as stainless steel or the like connects the projections 9 and 10. Two leg portions of the U-shaped pin 11 pass respectively through bores 12 and 13 which are formed respectively in the projections 9 and 10. Clips 14 engage with the U-shaped pin 11 as shown in
Figures 2 and 5 so as to prevent the pin 11 from slipping out of the bore 12.
The projections 9 and 10 are arranged such that the projection 9 is located between the projections 10 as shown in Figure 2 when the friction pads 7 and 8 have not worn, and that at least one of the projections 10 can enter into the recess 9' as can clearly be understood from Figures 3 and 4 when the friction pads 7 and 8 have worn and the caliper 3 moves upward in Figure 2 with respect to the supporting member 1.Further, one leg portion of the pin 11 passing through the projection 9 ofthe supporting member 1 is located upward or radially outward of the projections 10 of the caliper 3 as shown in Figures 3 and 4 and, the other leg portion of the pin 11 passing through the projections 10 of the caliper 3 is located downward or radially inward of the projection 9 of the supporting member 1, thus, even if either of the leg portion of the pin 11 would be accidentally cut off, the rotation of the caliper 3 around the pin 5 will be prevented by remaining leg portion of the pin 11 which will abut with either of the projections.
Preferably, the bores 12 and 13 are formed to loosely receive the pin 11 so as to prevent corrosion in the bores leading to jamming of the pin in the bores. The U-shaped pin 11 shown in the drawings effects a spring force on the projections 9 and 10 in the direction to separate them from one another as viewed in Figures 3 and 4 so as to avoid rattling noise or the like.
To exchange friction pads, a clip 14 is removed from the pin 11, and the pin 11 is removed from the projections 9 and 10. If necesssary, the caliper 3 is displaced in the direction of the axis of the disc to its original position as shown in Figure 2. The caliper 3 is rockingly moved around the pin 5 thereby exposing the friction pads 7 and 8 to the outside.
In operation, the caliper 3 is guided mainly by the pin 5 and partially by the pin 11 to slidingly move with respect to the supporting member 1.
In the embodiment, the U-shaped pin 11 is formed of a rod member, but the U-shaped pin 11 may be formed of a plate member provided that the configuration thereof is U-shaped and the rocking movement of the caliper 3 around the pin 5 is prohibited while allowing the relative sliding movement thereof with respect to the supporting member. The recess 9' is formed in the supporting member 1, but the recess may be formed in the caliper 3 to receive therein the projection on the supporting member.
As described heretofore, according to the invention, one of conventional two pins supporting slidingly the caliper on the supporting member is substituted by projections which formed respectively on the caliper and the supporting member and are connected by a U-shaped pin, thus, it is easy to exchange the friction pads since the caliper can be swung around the remaining one pin after extracting simply the U-shaped pin. Further, even if one leg portion of the U-shaped pin were cut off, the rocking movement of the caliper will be hindered by the other leg portion of the U-shaped pin. Further, in the preferred embodiment shown in the drawing, the projection on the caliper is received in the recess 9' and thus overlaps with the projection on the supporting member in the radial direction during the major portion of the service life, whereby accidental rocking movement of the caliper can reliably be avoided.
Claims (6)
1. A disc braking comprising a stationary supporting member, a caliper slidingly supported on the supporting memberforstraddling a portion of the circumference of a rotatable disc which is engageable by a pair of friction pads, a piston received in one arm portion of the caliper for pressing one of the friction pads against the disc, and the other of the friction pads being pressed against the disc by the other arm portion of the caliper, respective projections being provided on the caliper and on the supporting member, the projections being interconnected with one another by a U-shaped pin having two leg portions which pass respectively through the projections in the direction of relative sliding movement between the caliper and the supporting member.
2. A disc brake as claimed in claim 1, in which the projection on the caliper and the projection on the supporting member are displaced with respect to one another as viewed in the direction of the relative sliding movement between the caliper and the supporting member.
3. A disc brake as claimed in claim 1 or 2, in which a recess is defined between the projection on the supporting member and the remaining portion of the supporting member, as viewed in the direction of the relative sliding movement, the recess being adapted to receive the projection on the caliper.
4. A disc brake as claimed in any preceding claim in which a pin and a pin receiving guide bore are provided at a location spaced circumferentially from the projections for guiding the relative sliding movement between the caliper and the supporting member and, also, for allowing the swinging movement of the caliper around the axis of said bore when the
U-shaped pin has been removed from the projections.
5. A disc brake as claimed in any preceding claim in which the friction pads are supported and guided on lugs of the supporting member and the brake drag, occuring during braking, is transmitted directly to the supporting member.
6. A disc brake constructed and arranged substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17522178U JPS6040904Y2 (en) | 1978-12-20 | 1978-12-20 | disc brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2039646A true GB2039646A (en) | 1980-08-13 |
| GB2039646B GB2039646B (en) | 1982-10-06 |
Family
ID=15992399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7943084A Expired GB2039646B (en) | 1978-12-20 | 1979-12-14 | Disc brake |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS6040904Y2 (en) |
| DE (1) | DE2950232C2 (en) |
| FR (1) | FR2444848A1 (en) |
| GB (1) | GB2039646B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3232760A1 (en) * | 1982-09-03 | 1984-03-08 | Alfred Teves Gmbh, 6000 Frankfurt | PARTIAL PAD DISC BRAKE |
| FR2539197A1 (en) * | 1983-01-10 | 1984-07-13 | Brembo Spa | DISC BRAKE |
| FR2540952A1 (en) * | 1983-02-11 | 1984-08-17 | Dba | DISC BRAKE |
| GB2145787A (en) * | 1983-09-02 | 1985-04-03 | Teves Gmbh Alfred | Spot-type disc brake fixing a guide element |
| US4527667A (en) * | 1980-03-18 | 1985-07-09 | Societe Anonyme D.B.A. | Disc brake |
| GB2180605A (en) * | 1985-09-16 | 1987-04-01 | Teves Gmbh Alfred | Spot-type disc brake |
| EP0228812A1 (en) * | 1985-11-29 | 1987-07-15 | LUCAS INDUSTRIES public limited company | Improvements relating to disc brakes |
| US4993519A (en) * | 1988-10-28 | 1991-02-19 | Bendix France | Brake with two discs of fixed spacing |
| US10451127B2 (en) | 2015-05-07 | 2019-10-22 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Utility vehicle disk brake |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2517400B1 (en) * | 1981-11-30 | 1987-02-27 | Dba | DISC BRAKE |
| DE3223627A1 (en) * | 1982-06-24 | 1983-12-29 | Alfred Teves Gmbh, 6000 Frankfurt | FLOATING SADDLE DISC BRAKE |
| IT1195113B (en) * | 1986-08-01 | 1988-10-12 | Weber Spa | DISC BRAKE CALIPER FOR VEHICLES |
| IT1250323B (en) * | 1991-10-25 | 1995-04-07 | Bendix Altecna Spa | DISC BRAKE. |
| DE102014019110B4 (en) * | 2014-12-19 | 2016-12-15 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Attaching a brake caliper of a disc brake to a brake carrier |
| JP7444755B2 (en) * | 2020-10-28 | 2024-03-06 | ナブテスコ株式会社 | brake caliper device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3310135A (en) * | 1961-11-23 | 1967-03-21 | Girling Ltd | Spot-type disc brake |
| CA933474A (en) * | 1970-05-15 | 1973-09-11 | Aisin Seiki Kabushiki Kaisha | Disc brakes for vehicles |
| GB1444392A (en) * | 1973-05-25 | 1976-07-28 | Girling Ltd | Caliper assembly for disc brakes |
| DE2408075A1 (en) * | 1974-02-20 | 1975-09-04 | Teves Gmbh Alfred | DISC BRAKE |
| GB1518793A (en) * | 1974-08-30 | 1978-07-26 | Girling Ltd | Disc brakes |
| GB1567905A (en) * | 1976-01-17 | 1980-05-21 | Girling Ltd | Disc brakes |
| GB1532572A (en) * | 1976-02-26 | 1978-11-15 | Girling Ltd | Sliding caliper disc brake |
| US4109766A (en) * | 1976-07-06 | 1978-08-29 | Akebono Brake Industry Co., Ltd. | Disc brake |
-
1978
- 1978-12-20 JP JP17522178U patent/JPS6040904Y2/en not_active Expired
-
1979
- 1979-12-13 DE DE19792950232 patent/DE2950232C2/en not_active Expired
- 1979-12-14 GB GB7943084A patent/GB2039646B/en not_active Expired
- 1979-12-19 FR FR7931124A patent/FR2444848A1/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527667A (en) * | 1980-03-18 | 1985-07-09 | Societe Anonyme D.B.A. | Disc brake |
| DE3232760A1 (en) * | 1982-09-03 | 1984-03-08 | Alfred Teves Gmbh, 6000 Frankfurt | PARTIAL PAD DISC BRAKE |
| FR2532703A1 (en) * | 1982-09-03 | 1984-03-09 | Teves Gmbh Alfred | DISC BRAKE WITH PARTIAL FITTINGS, IN PARTICULAR FOR MOTOR VEHICLES |
| GB2126294A (en) * | 1982-09-03 | 1984-03-21 | Teves Gmbh Alfred | Spot-type disc brake |
| FR2539197A1 (en) * | 1983-01-10 | 1984-07-13 | Brembo Spa | DISC BRAKE |
| GB2133489A (en) * | 1983-01-10 | 1984-07-25 | Brembo Spa | Disc brake assembly |
| EP0117192A1 (en) * | 1983-02-11 | 1984-08-29 | BENDIX France | Disc-brake |
| FR2540952A1 (en) * | 1983-02-11 | 1984-08-17 | Dba | DISC BRAKE |
| GB2145787A (en) * | 1983-09-02 | 1985-04-03 | Teves Gmbh Alfred | Spot-type disc brake fixing a guide element |
| GB2180605A (en) * | 1985-09-16 | 1987-04-01 | Teves Gmbh Alfred | Spot-type disc brake |
| GB2180605B (en) * | 1985-09-16 | 1989-12-28 | Teves Gmbh Alfred | Spot-type disc brake |
| US4901825A (en) * | 1985-09-16 | 1990-02-20 | Alfred Teves Gmbh | Spot-type disc brake including caliper retention arrangements |
| EP0228812A1 (en) * | 1985-11-29 | 1987-07-15 | LUCAS INDUSTRIES public limited company | Improvements relating to disc brakes |
| US4993519A (en) * | 1988-10-28 | 1991-02-19 | Bendix France | Brake with two discs of fixed spacing |
| US10451127B2 (en) | 2015-05-07 | 2019-10-22 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Utility vehicle disk brake |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6040904Y2 (en) | 1985-12-11 |
| JPS5592924U (en) | 1980-06-27 |
| FR2444848A1 (en) | 1980-07-18 |
| DE2950232C2 (en) | 1982-05-06 |
| GB2039646B (en) | 1982-10-06 |
| DE2950232A1 (en) | 1980-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |