GB2615482A - Brake pad pin and axially constraining elastic element assembly and interaction method - Google Patents
Brake pad pin and axially constraining elastic element assembly and interaction method Download PDFInfo
- Publication number
- GB2615482A GB2615482A GB2306993.3A GB202306993A GB2615482A GB 2615482 A GB2615482 A GB 2615482A GB 202306993 A GB202306993 A GB 202306993A GB 2615482 A GB2615482 A GB 2615482A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pin
- elastic element
- diameter
- profile
- equal
- 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.)
- Pending
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
- F16D55/228—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
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- 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
- F16D65/0974—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis
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- 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
-
- 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
- F16D2055/007—Pins holding the braking members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
One aspect of the present invention relates to a brake pad pin and axially constraining elastic element assembly (1), wherein said assembly (1) comprises a brake pad supporting pin (2) comprising a pin body (4), which extends along a pin axis (X-X) between a head end (5) and a tip end (6), wherein said pin body (4) comprises in succession along said axial direction (A-A) towards said tip end (6) at least one pin first portion (7) having at least one pin first portion diameter (D1), and a pin second portion (8) having at least one pin second portion diameter (D2), wherein said at least one pin second portion diameter (D2) is greater than said at least one pin second portion diameter (D1); and wherein said assembly (1) comprises an elastic element (3) arranged on said pin body (4) at least at said pin first portion (7), wherein said elastic element (3) has at least one elastic element inner diameter (Dpi) and at least one elastic element outer diameter (DpE), wherein said at least one elastic element outer diameter (DpE) is either greater than or equal to said at least pin second portion diameter (D2), and wherein said at least one elastic element inner diameter (Dpi) is smaller than said at least one pin second portion diameter (D2), wherein said pin body (4) comprises a pin third portion (9) arranged between said pin first portion (7) and said pin second portion (8), wherein said pin third portion (9) has at least one pin third stretch (10) having at least one pin third diameter (D3), which is greater than said at least one elastic element inner diameter (Dpi), wherein said elastic element (3) comprises an elastic element inner profile (13) facing towards said pin body (4), wherein said pin head third portion (9) comprises a head portion third profile (11) which connects said pin first portion (5) and said pin second portion (6), wherein, when said pin head third portion (9) is biased towards said elastic element (3) or vice versa, said pin third portion profile (11) is wedged at least partially into said elastic element inner profile (13) so that said pin third portion stretch (7) biases at least said elastic element (3) at least in a radial direction (R-R) outwards with a biasing force (F).
Claims (10)
1. A brake pad pin and axially constraining elastic element assembly (1) , wherein said assembly (1) comprises: - a brake pad supporting pin (2) comprising a pin body (4) which extends along a pin axis (X-X) between a head end (5) and a tip end (6) , wherein said pin axis (X-X) defines an axial direction (A-A) , either coincident with or parallel to said pin axis (X-X) , and a radial direction (R-R) transverse to said axial direction (A-A) , wherein said pin body (4) comprises in succession along said axial direction (A-A) towards said tip end (6) at least one pin first portion (7) having at least one pin first portion diameter (DI) , and a pin second portion (8) having at least one pin second portion diameter (D2) ; and wherein said assembly (1) comprises: - an elastic element (3) arranged on said pin body (4) at least at said pin first portion (7) , wherein said elastic element (3) has at least one elastic element inner diameter (Dpi) and at least one elastic element outer diameter (DpE) , wherein said at least one elastic element outer diameter (DpE) is either greater than or equal to said at least one pin second portion diameter (D2 ) , characterized in that said pin body (4) comprises a pin third portion (9) arranged between said pin first portion (7) and said pin second portion (8) , wherein said pin third portion (9) has at least one pin third stretch (10) having at least one pin third diameter (D3) which is greater than said at least one elastic element inner diameter (Dpi) , wherein said elastic element (3) comprises an elastic element inner profile (13) facing towards said pin body (4) , wherein said pin head third portion (9) comprises a head portion third profile (11) which connects said pin first portion (5) and said pin second portion (6) , wherein, when said pin head third portion (9) is biased towards said elastic element (3) , or vice versa, said pin third portion profile (11) is wedged at least partially into said elastic element inner profile (13) so that said pin third portion stretch (10) biases said elastic element (3) at least in a radial direction (R-R) outwards with a biasing force (F) .
2. An assembly (1) according to the preceding claim, wherein said elastic element inner profile (13) and said pin third portion profile (11) are mutually shaped so that said biasing force (F) increases when said pin head second portion (8) and said elastic element (3) approach each other, and/or wherein wherein said at least one pin second portion diameter (D2) is greater than said at least one pin first portion diameter (DI) , and wherein said at least one elastic element inner diameter (Dpi) is smaller than said at least one pin second portion diameter (D2) , and/or wherein said elastic element ( 3 ) has an elastic element longitudinal extension along said axial direction (A-A) , said pin third portion ( 9 ) comprises a pin third portion longitudinal extension along said axial direction (A-A) , wherein said elastic element inner diameter (Dpi ) measured in at least one elastic element first section ( 3 ) transversal to said pin axis (X-X ) along the elastic element longitudinal extension is either smaller than or equal to said pin third portion diameter ( D3 ) measured in at least one pin third portion first section ( 7 ) transversal to said pin axis (X-X ) along the longitudinal extension of said pin third portion, and wherein said elastic element inner diameter ( Dpi ) measured in at least one elastic element second section ( 3 ) transverse to said pin axis (X-X) along the elastic element longitudinal extension is either greater than or equal to said pin third portion diameter (D3 ) measured in at least one said pin third portion second section ( 7 ) transverse to said pin axis (X-X) along the elastic element longitudinal extension, wherein - said second section transversal to said pin axis (X-X) of said elastic element ( 3 ) is in an advanced position relative to said first section transversal to said pin axis (X-X) of said elastic element ( 3 ) in the direction of said pin second portion ( 8 ) , and said first section of said pin third portion ( 7 ) transversal to said pin axis (X-X) is in an advanced position in the direction of said pin second portion ( 8 ) relative to said second section of said pin third portion (9) transverse to said pin axis (X-X) .
3. An assembly (1) according to claim 1, wherein said pin third portion profile (11) at least at said pin third portion stretch (10) radially increases in the direction of said pin second portion (8) between a pin third portion minimum diameter (D31) and a pin third portion maximum diameter (D32) , wherein said elastic element inner diameter (Dpi) is comprised between said pin third portion minimum diameter (D31) and said pin third portion maximum diameter (D32) , so that said pin third portion stretch (10) is wedged biasing said elastic element (3) in a radial direction.
4. An assembly (1) according to the preceding claim, wherein said elastic element inner profile (13) has an elastic element constant inner diameter equal to said at least one elastic element inner diameter (Dpi) , or wherein said elastic element inner profile (13) radially increases from an elastic element minimum diameter equal to said at least one elastic element inner diameter (Dpi) to an elastic element maximum inner diameter at least towards said pin second portion ( 8 ) , and/or wherein said pin third portion profile (11) radially increases in the direction of said pin second portion (8) in a linear manner or a curvilinear/spoked manner, and/or wherein said pin third portion profile (11) radially increases in the direction of said pin second portion (8) connecting said pin first 31 portion (7) and said pin second portion (8) between said pin third portion minimum diameter (D31) and said pin third portion maximum diameter (D32) , and/or wherein said pin third portion minimum diameter (D31) is equal to said pin first portion diameter (DI) , and/or wherein said pin third portion maximum diameter (D32) is either smaller than or equal to said pin second portion diameter (D2) , and/or wherein said pin third portion minimum diameter (D31) is either smaller than or equal to said elastic element constant inner diameter, and/or wherein said pin third portion (9) is a tapered pin portion radially increasing in the direction of said pin second portion (8) between said pin third portion minimum diameter (D31) and said pin third portion maximum diameter (D32) with a tapering angle (C) , and/or wherein said elastic element (3) comprises an elastic element outer profile (14) facing outwards in a radial direction (R-R) , wherein said elastic element outer profile (14) decreases radially between an elastic element maximum outer diameter equal to said at least one elastic element outer diameter (DpE) , to an elastic element minimum inner diameter at least towards said pin second portion (8) .
5. An assembly (1) according to claim 1, wherein, said pin third portion (9) is substantially a pin shoulder having a constant diameter equal to said pin third portion diameter (D3) , wherein said pin third portion profile (11) connects as a step to said pin first portion (7) and said pin second portion (8) , wherein said elastic element inner 32 profile (13) increases radially between an elastic element minimum diameter equal to said at least one elastic element inner diameter (Dpi) and an elastic element maximum inner diameter at least towards said pin second portion (8) with a tapering angle (C) , wherein said pin third portion diameter (D3) is comprised between said elastic element maximum inner diameter and said elastic element minimum inner diameter, so that said pin third portion stretch (10) is wedged biasing said elastic element (3) in an increasing manner in a radial direction.
6. An assembly (1) according to the preceding claim, wherein said elastic element (3) comprises an elastic element outer profile (14) facing outwards in a radial direction (R-R) , wherein said elastic element outer profile (14) has a constant diameter equal to said at least one elastic element outer diameter (DpE) .
7. An assembly (1) according to any one of the preceding claims, wherein : said pin body (4) comprises a pin head (17) having a pin head diameter (D4) , wherein said pin head (17) is connected to said pin first portion (7) , wherein said pin head diameter (D4) is greater than said elastic element inner diameter (Dpi) , wherein said pin head (17) defines a first radial pin wall (19) facing the direction of said tip end (6) and configured to abut axially against said elastic element (3) , wherein said first radial wall (19) extends radially between a radially inner edge having a diameter equal to said pin first portion 33 diameter (DI) and a radially outer edge having a diameter equal to said pin head diameter (D4) and/or wherein said pin body (4) comprises a pin tip (18) connected to said pin second portion (8) and has a tapered conformation in the direction of said tip end (6) , and/or wherein said pin second portion (8) comprises at least one pin abutment wall (21) facing towards said tip end (6) configured to abut with a caliper body portion, and/or wherein said pin second portion defines a pin radial second wall (20) facing in the direction of said head end (5) configured to abut axially said elastic element (3) , wherein said pin radial second wall (20) extends in a radial direction from a radially inner edge, preferably having a diameter equal to said pin third portion maximum diameter (D32) , to a radially outer edge having a diameter equal to said pin second portion diameter (D2 ) .
8. An assembly (1) according to any one of the preceding claims, wherein said elastic element (3) comprises an elastic element first radial wall (15) configured to abut with at least one corresponding pin abutment wall, wherein said elastic element first radial wall (15) faces towards said pin second portion (8) , wherein said elastic element first radial wall (15) extends between a radially inner edge having a diameter equal to said elastic element inner diameter (Dpi) and a radially outer edge having a diameter equal to said elastic member outer diameter (DpE) , and/or wherein said elastic member 34 comprises an elastic element first abutment wall (15) configured to abut with at least one corresponding pin abutment wall, wherein said elastic element second radial wall (16) faces in a direction opposite to said pin second portion (8) , wherein said elastic element first radial wall (15) extends between a radially inner edge having a diameter equal to said elastic element inner diameter (Dpi) and a radially outer edge having a diameter equal to said elastic element outer diameter (DpE) , and/or wherein said elastic element (3) has annular and/or tubular, and/or wherein said elastic element comprises an elastic element through opening (22) parallel to said axial direction (A-A) , and/or wherein said pin head third portion axial extension (A3) is at least 1/ 6 of the elastic element axial extension (Ap) .
9. A brake caliper (27) comprising at least a caliper body (28) and at least one assembly (1) according to one of claims from 1 to 8; wherein said caliper body comprises a first elongated element (34) and a second elongated element (35) , wherein said first elongated element (34) comprises at least one caliper body first housing (29) and said second elongated element (35) comprises at least one caliper body second housing (30) , wherein said caliper body first housing (29) and said caliper body second housing (30) each have a housing axis (G-G) parallel to and coincident with said pin axis (X-X) , wherein said caliper body first housing (29) comprises at least one first housing first portion (31) , said caliper body first housing (29) 35 having prevalent longitudinal extension and having a caliper body first housing diameter (Dp) , and said caliper body second housing (30) having prevalent longitudinal extension and having a caliper body second housing diameter (Ds) , wherein said pin second portion (8) is at least partially housed in said caliper body first housing (29) and said pin first portion (7) is housed with clearance in said caliper body first housing (29) , wherein said elastic element (3) is housed in said pin body first housing portion (31) , . wherein said elastic element outer diameter (DpE) is either greater than or equal to said first housing diameter (Dp) to make an axial constraint opposing an extraction in an axial direction (A-A) of said support pin (2) from the caliper body (28) .
10. An interaction method between a pad support pin and an elastic retaining element, comprising the steps of a- providing a pin assembly according to any one of claims from 1 to 8, b- approaching said pin second portion (8) to said elastic element (3) , or vice versa, c- during step b, wedging at least partially said pin third portion profile (11) into said elastic element inner profile (13) so that said pin third portion stretch (10) biases said elastic element (3) at least in a radial direction (R-R) outwards with a biasing force (F) .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT202000002723 | 2020-11-13 | ||
| PCT/IB2021/060381 WO2022101787A1 (en) | 2020-11-13 | 2021-11-10 | Brake pad pin and axially constraining elastic element assembly and interaction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202306993D0 GB202306993D0 (en) | 2023-06-28 |
| GB2615482A true GB2615482A (en) | 2023-08-09 |
Family
ID=86872493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2306993.3A Pending GB2615482A (en) | 2020-11-13 | 2021-11-10 | Brake pad pin and axially constraining elastic element assembly and interaction method |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2615482A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084665A (en) * | 1976-10-22 | 1978-04-18 | The Bendix Corporation | Disc brake and mounting means therefor |
| US4279331A (en) * | 1978-02-06 | 1981-07-21 | Itt Industries, Inc. | Floating-caliper disc brake |
| US4678210A (en) * | 1986-08-15 | 1987-07-07 | Peter J. Balsells | Loading and locking mechanism |
-
2021
- 2021-11-10 GB GB2306993.3A patent/GB2615482A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084665A (en) * | 1976-10-22 | 1978-04-18 | The Bendix Corporation | Disc brake and mounting means therefor |
| US4279331A (en) * | 1978-02-06 | 1981-07-21 | Itt Industries, Inc. | Floating-caliper disc brake |
| US4678210A (en) * | 1986-08-15 | 1987-07-07 | Peter J. Balsells | Loading and locking mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| GB202306993D0 (en) | 2023-06-28 |
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