GB2057074A - Disc brake - Google Patents
Disc brake Download PDFInfo
- Publication number
- GB2057074A GB2057074A GB8020220A GB8020220A GB2057074A GB 2057074 A GB2057074 A GB 2057074A GB 8020220 A GB8020220 A GB 8020220A GB 8020220 A GB8020220 A GB 8020220A GB 2057074 A GB2057074 A GB 2057074A
- Authority
- GB
- United Kingdom
- Prior art keywords
- brake
- shanks
- disc
- brake lining
- saddle
- 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
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
- F16D65/567—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake
-
- 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
-
- 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
- F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
- F16D65/0973—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces
- F16D65/0979—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on the rear side of the pad or an element affixed thereto, e.g. spring clips securing the pad to the brake piston or caliper
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
- F16D2125/28—Cams; Levers with cams
- F16D2125/32—Cams; Levers with cams acting on one cam follower
Abstract
The brake has a brake saddle (1) which is mounted on a brake carrier (2) for displacement transversely to the brake disc (3), one shank (4) of the saddle (1) directly supports one of the brake lining carriers (5) and the other shank (4') supports the other brake lining carrier (5') via a brake activation mechanism (7) which serves for engaging the brake lining carrier (5') in the direction of the brake disc (3) against the action of a return spring 24 wherein one or each of the brake lining carriers (5, 5') is provided on its rear with a projection (17), and a W- shaped retention spring (19) comprising two middle shanks (19a, 19b) and two outer shanks (19c,19d) serve to hold a respective one of the brake lining carriers (5, 5') in abutment on said directly supporting shank (4) or said brake activation mechanism (7) respectively with the middle shanks (19a, 19b) of the W- shaped retention spring (19) engaging around the respective projection (17) and its outer shanks (19c, 19d) being fastened to said directly supporting brake saddle shank (4) or said brake activation mechanism (7) respectively. <IMAGE>
Description
SPECIFICATION
Disc brake
This invention relates to a disc brake having a brake saddle which is mounted on the brake carrier for displacement transversely to the brake disc and embraces with its two shanks the brake disc as well as the two brake lining carriers provided with brake linings arranged on each side of the brake disc, of which one shank with its interior surface directly supports a brake lining carrier held to it by means of a bent retention spring of spring wire and the other shank supports the other brake lining carrier by means of a brake activation mechanism which serves for the engagement of the brake lining carrier in the direction of the brake disc against the action of the return spring.
In a known disc brake of this type (DE-OS 2804279) the retention spring is made as an oval of spring wire, in which the two ends of the spring loop terminate approximately in the middle of the two longitudinally extending spring sections and are kinked outwards in the plane of the spring. The short sections connecting the two longitudinally extending spring sections are cranked out of the plane of the spring. The central region of the longitudinally extending spring section engages behind a nose which has been stamped out of the plane of the brake lining carrier and angled backwards.By means of the spring engagement of the cranked short spring sections in recesses of one of the shanks of the brake saddle and by engagement of the outwardly kinked ends of the retention spring in bores which are in the region of the brake lining carrier edge which has been bent 900 out of the brake lining carrier plane, the retention spring ensures the abutment of the brake lining carrier on the inner surface of the brake saddle shank.
With such an embodiment of the brake not only is the spring construction relatively complicated; the necessary processing of the brake lining carrier to create the engagement portions for the retention spring is particularly complicated and thus expensive. Furthermore it has turned out that manipulation of the retention spring during mounting or de-mounting of the brake lining carrier is difficult.
The invention has as its basis the task, of so modifying a disc brake of the type mentioned above while removing the above mentioned disadvantages, that not only is a constructionally simple shaping of the retention spring achieved, which allows convenient manipulation, but there is also achieved a constructionally simple embodiment of the brake lining carrier with means for fastening the retention spring on its rear, which requires little production effort.
According to a first aspect of the invention there is provided a disc brake having a brake saddle which is mounted on a brake carrier for displacement transversely to the brake disc and embraces with its two shanks the brake disc as well as two brake lining carriers provided with a brake lining arranged on each side of the brake disc, one of which shanks with its interior surface directly supports one of the brake lining carriers and the other shank supporting the other brake lining carrier via a brake activation mechanism which serves for engaging the brake lining carrier in the direction of the brake disc against the action of a return spring, wherein each of the brake lining carriers is provided on its rear with a projection and two W-shaped retention springs comprising two middle shanks and two outer shanks serve to hold a respective one of the brake lining carriers in abutment on said directly supporting shank or said brake activation mechanism respectively with the middle shanks of the W-shaped retention spring engaging around the respective projection and its outer shanks being fastened to said directly supporting brake saddle shank or said brake activation mechanism respectively.
Also according to the invention such a projection could be provided on only one brake lining carrier, and then only a single W-shaped spring would be used. The other brake lining carrier would be held by other means.
According to a second embodiment of the invention there is provided a disc brake having a brake saddle which is mounted on the brake carrier for displacement transversely to the brake disc and embraces with its two shanks the brake disc as well as the two brake lining carriers provided with a brake lining arranged on each side of the brake disc, one of which with its interior surface directly supports a brake lining carrier held against it by the action of a bow shaped retention spring of spring wire and the other supporting the other brake lining carrier via a brake activation mechanism which serves for engaging the brake lining carrier in the direction of the brake disc against the action of a return spring, characterized in, that the brake lining carrier is provided on its rear with a projecting pin with a head and that the
W-shaped retention spring comprises two middle shanks which grip behind the head, as well as two outer shanks which are fastened to the brake element respectively holding and supporting them.
The pin whose head is clipped by the W-shaped retention spring with its middle shanks, can easily be fastened on the brake lining carrier. The Wshaped retention spring also has a shape, which can be manufactured with little effort.
Furthermore, the retention spring can conveniently be pushed onto the pin of the brake lining carder.
In a particularly useful further embodiment the one brake saddle shank, on which the brake lining carrier is immediately supported, comprises recesses, into which the retention spring projects with its outer shanks. These recesses are relatively simple to construct in the brake saddle shank by turning.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings, wherein: Figure 1 shows a section through a brake carrier-brake saddle-unit with mechanical brake
activation mechanism and
Figure 2 shows a side view of a brake carrier
brake saddle-unit according to Figure 1.
As can be seen from the drawing, the illustrated
disc brake comprises a brake saddle 1, which is
mounted on a brake carrier 2 for displacement
transversely to a brake disc 3. The brake saddle 1
has two shanks 4,4', with which it embraces the
brake disc 3 as well as the two brake lining
carriers 5,5' located on each side of the brake
disc, which each carry a brake lining 6,6'. A brake
activation mechanism 7 cooperates with shank 4'
of the brake saddle 1. This comprises a shaft 8, on whose outer end 9 an activation lever which is not further illustrated engages.
As can be seen from Figure 1, shaft 8 has a recess in which there is formed an evolute shaped cam 1 0. This engages on the front surface of the pressure piece 11. On swivelling of lever 9
corresponding rotation of shaft 8 leads via cam 10
to displacement of the pressure piece 11 in the
direction of the brake disc 3. For this purpose the
pressure piece 11 is guided in a bore of shank 4'
of the brake saddle 1. This pressure piece 11
abuts a nut 12, which like pressure piece 11 is
displaceable in the direction of brake disc 3 and
mounted in a bore. This nut 12 is connected via an
external helical gearing 13 with an adjustment
mechanism which is not further illustrated.In an
internal thread the nut 12 axially receives a screw 1 5 which with its front end 1 6 is held in
engagement with the brake lining carrier 5', and this in a similar manner as the engagement of the brake lining carrier 5 on the shank 4 of the brake saddle 1 is ensured.
As can be seen from Figure 2, for this purpose the brake lining carrier 5 is formed on its rear side with a pin 1 7 having a head 18. A W-shaped retention spring 19 engages with its two central shanks 1 9a, 1 9b behind the head 18 and with the end of its outer shanks 1 9c, 1 9d extends into a recess 20 provided for their reception in the shank 4 of the brake saddle 1. In a similar manner the connection between the brake lining carrier 5' is ensured with screw 1 5, whose head has for this purpose a recess 21 which receives the end of outer shanks 1 9c, 1 9d. Approximately on the outer end of the bore in shank 4' of brake saddle 1 which serves for the reception and guiding of nut
12 there is fastened a snap-ring 22 for holding a ring disc 23 on which one end of a helical spring 24 rests, whose other end is supported on nut 12.
When the brake is activated by turning shaft 8 then by means of pressure piece 11, nut 12 and screw 1 5 the brake lining carrier 5' with the brake lining 6' is moved towards the brake disc 3. Due to the reaction force arising on engagement with the brake disc brake saddle 1 so displaced that also brake lining carrier 5 with brake lining 6 comes into engagement on the brake disc 3. During brake activation the helical spring 24 is compressed; on release of the brake the helical spring 24 returns the nut 12 with screw 1 5 as well as pressure piece 11 back to the initial position. In order to provide in this released position of the brake, that is during travel operation, for substantially equal release clearances on both sides of the brake disc 3 independently of the degree of wear of the brake lining 6,6' there is provided between brake carrier 2 and brake saddle 1 a device which is not further illustrated.
Claims (6)
1. A disc brake having a brake saddle which is mounted on a brake carrier for displacement transversely to the brake disc and embraces with its two shanks the brake disc as well as two brake lining carriers provided with a brake lining arranged on each side of the brake disc, one of which shanks with its interior surface directly supports one of the brake lining carriers and the other shank supporting the other brake lining carrier via a brake activation mechanism which serves for engaging the brake lining carrier in the direction of the brake disc against the action of a return spring, wherein each of the brake lining carriers is provided on its rear with a projection, and two W-shaped retention springs comprising two middle shanks and two outer shanks serve to hold a respective one of the brake lining carriers in abutment on said directly supporting shank or said brake activation mechanism respectivejy with the middle shanks of the W-shaped retention spring engaging around the respective projection and its outer shanks being fastened to said directly supporting brake saddle shank or said brake activation mechanism respectively.
2. Disc brake according to claim 1, wherein the projection of each brake lining carrier comprises a pin with a head behind which head the middle shanks of the respective W-shaped retention spring grips.
3. Disc brake according to claim 1 or claim 2 wherein the directly supporting brake saddle shank and the brake activation mechanism each have a recess into which the outer shanks of the
W-shaped retention springs can project
4. Disc brake substantially as hereinbefore described with reference to the accompanying drawings.
5. A disc brake having a brake saddle which is mounted on the brake carrier for displacement transversely to the brake disc and embraces with its two shanks the brake disc as well as the two brake lining carriers provided with a brake lining arranged on each side of the brake disc, one of which with its interior surface directly supports a brake lining carrier held against it by the action of a bow shaped retention spring of spring wire and the other supporting the other brake lining carrier via a brake activation mechanism which serves for engaging the brake lining carrier in the direction of the brake disc against the action of a return spring, characterized in, that the brake lining carrier is provided on its rear with a projecting pin with a head and that the W-shaped retention spring comprises two middle shanks which grip behind the head, as well as two outer shanks which are fastened to the brake element respectively holding and supporting them.
6. Disc brake according to claim 5, characterized in, that one of the brake saddle shanks on which one of the brake lining carriers is directly supported, has recesses in which the retention spring projects with the ends of its outer shanks.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792952845 DE2952845A1 (en) | 1979-06-22 | 1979-06-22 | DISC BRAKE |
| DE19792925342 DE2925342A1 (en) | 1979-06-22 | 1979-06-22 | ADJUSTMENT DEVICE FOR AUTOMATIC COMPENSATION OF THE BRAKE PAD WEAR OF A DISC BRAKE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2057074A true GB2057074A (en) | 1981-03-25 |
| GB2057074B GB2057074B (en) | 1983-09-21 |
Family
ID=25779641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8020220A Expired GB2057074B (en) | 1979-06-22 | 1980-06-20 | Disc brake |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2952845A1 (en) |
| GB (1) | GB2057074B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127116A (en) * | 1982-03-11 | 1984-04-04 | Automotive Products Plc | Friction pad assembly for disc brakes |
| GB2199909A (en) * | 1987-01-12 | 1988-07-20 | Aisin Seiki | Disk brake assemblies |
| US5060766A (en) * | 1988-02-23 | 1991-10-29 | Aisin Seiki Kabushiki Kaisha | Disc brake assembly |
| GB2258505A (en) * | 1991-08-09 | 1993-02-10 | Teves Gmbh Alfred | Floating-caliper spot-type disc brake for high-powered vehicles |
| GB2262145A (en) * | 1991-08-09 | 1993-06-09 | Teves Gmbh Alfred | Floating-caliper spot-type disc brake for high-powered vehicles |
| WO2007062420A1 (en) * | 2005-11-28 | 2007-05-31 | Hb Performance Systems, Inc. | Positive pad retraction and retention device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953421B (en) * | 2018-06-04 | 2019-10-22 | 新沂市棋盘工业集中区建设发展有限公司 | A kind of symmetrical reducing type compensation brake system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1005453B (en) * | 1973-02-21 | 1976-08-20 | Ferodo Sa | DISC BRAKE ESPECIALLY FOR AUTOMOBILE VEHICLES |
| JPS5386969A (en) * | 1977-01-08 | 1978-07-31 | Aisin Seiki Co Ltd | Disccbrake used pad keep spring |
-
1979
- 1979-06-22 DE DE19792952845 patent/DE2952845A1/en active Granted
-
1980
- 1980-06-20 GB GB8020220A patent/GB2057074B/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127116A (en) * | 1982-03-11 | 1984-04-04 | Automotive Products Plc | Friction pad assembly for disc brakes |
| GB2199909A (en) * | 1987-01-12 | 1988-07-20 | Aisin Seiki | Disk brake assemblies |
| US5060766A (en) * | 1988-02-23 | 1991-10-29 | Aisin Seiki Kabushiki Kaisha | Disc brake assembly |
| GB2258505A (en) * | 1991-08-09 | 1993-02-10 | Teves Gmbh Alfred | Floating-caliper spot-type disc brake for high-powered vehicles |
| GB2262145A (en) * | 1991-08-09 | 1993-06-09 | Teves Gmbh Alfred | Floating-caliper spot-type disc brake for high-powered vehicles |
| GB2262145B (en) * | 1991-08-09 | 1995-06-14 | Teves Gmbh Alfred | Brake shoe for a floating-caliper spot-type disc brake |
| GB2258505B (en) * | 1991-08-09 | 1995-06-14 | Teves Gmbh Alfred | Floating-caliper spot-type disc brake for vehicles |
| WO2007062420A1 (en) * | 2005-11-28 | 2007-05-31 | Hb Performance Systems, Inc. | Positive pad retraction and retention device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2952845C2 (en) | 1989-06-22 |
| GB2057074B (en) | 1983-09-21 |
| DE2952845A1 (en) | 1981-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920620 |