DE29901831U1 - Shoe brake with servo effect - Google Patents
Shoe brake with servo effectInfo
- Publication number
- DE29901831U1 DE29901831U1 DE29901831U DE29901831U DE29901831U1 DE 29901831 U1 DE29901831 U1 DE 29901831U1 DE 29901831 U DE29901831 U DE 29901831U DE 29901831 U DE29901831 U DE 29901831U DE 29901831 U1 DE29901831 U1 DE 29901831U1
- Authority
- DE
- Germany
- Prior art keywords
- brake
- shoe
- rim
- disc
- shoe brake
- 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.)
- Expired - Lifetime
Links
- 230000000694 effects Effects 0.000 title description 5
- 239000000969 carrier Substances 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000005489 elastic deformation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000003321 amplification Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000000750 progressive effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
- B62L3/023—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever acting on fluid pressure systems
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/60—Cables or chains, e.g. Bowden cables
-
- 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
- F16D2127/00—Auxiliary mechanisms
- F16D2127/007—Auxiliary mechanisms for non-linear operation
-
- 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
- F16D2127/00—Auxiliary mechanisms
- F16D2127/08—Self-amplifying or de-amplifying mechanisms
-
- 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
- F16D2127/00—Auxiliary mechanisms
- F16D2127/08—Self-amplifying or de-amplifying mechanisms
- F16D2127/10—Self-amplifying or de-amplifying mechanisms having wedging elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Braking Arrangements (AREA)
Description
Backenbremse mit ServoeffektShoe brake with servo effect
Die Erfindung betrifft eine Backenbremse mit Servoeffekt. Diese Bremse kann als Felgen- oder Scheibenbremse ausgeführt werden.The invention relates to a shoe brake with servo effect. This brake can be designed as a rim or disc brake.
In der Fahrradtechnik hat sich die Felgenbremse durchgesetzt. Als Exoten können hier Naben-, Reifen-, oder Scheibenbremsen angesehen werden.Rim brakes have become the norm in bicycle technology. Hub, tire, or disc brakes can be considered exotic here.
Im Automobilbau wird die Trommelbremse von der Scheibenbremse immer mehr ver-/ drängt. Hier wird die Leistungsfähigkeit der Bremsen durch größere Dimensionen und durch den Einsatz von Bremskraftverstärkern gesteigert. Die im PKW-Bau fast ausschließlich verwendeten Unterdruckbremskraftverstärker lassen sich bei aufgeladenen Motoren oder bei Elektrofahrzeugen nur unter Installation zusätzlicher Pumpen einsetzen. Diese Beanspruchen Bauraum und erhöhen den Kraftstoff- bzw. Energieverbrauch. In automobile construction, drum brakes are increasingly being replaced by disc brakes. Here, the performance of the brakes is increased by larger dimensions and by the use of brake boosters. The vacuum brake boosters, which are almost exclusively used in car construction, can only be used in turbocharged engines or electric vehicles by installing additional pumps. These take up installation space and increase fuel and energy consumption.
Bei Fahrradfelgenbremsen wird eine Erhöhung der Anpreßkraft der Backen durch die Änderung der Hebelverhältnisse oder durch Einsatz von Hydraulik erreicht. Dieses hat jedoch zur Folge, daß die Lüftung geringer wird und sich das Rad bereits bei einer kleinen Unwucht der Felge nicht mehr frei dreht.In bicycle rim brakes, the contact pressure of the shoes is increased by changing the lever ratios or by using hydraulics. However, this results in reduced ventilation and the wheel no longer turning freely if the rim is slightly unbalanced.
Der Erfindung liegt die Aufgabe zugrunde, eine Backenbremse zu schaffen, welche die beim Bremsen entstehende Reaktionskraft für einen Servoeffekt nutzt und somit die Anpreßkraft der Bremsbacken selbsttätig verstärkt. Damit wird bei Automobilen der Bremskraftverstärker überflüssig und die Fahrradbremse erreicht eine größere Lüftung bei höherer Leistungsfähigkeit.The invention is based on the object of creating a shoe brake which uses the reaction force generated during braking for a servo effect and thus automatically increases the contact pressure of the brake shoes. This makes the brake booster superfluous in automobiles and the bicycle brake achieves greater ventilation with higher performance.
Dieser Effekt wird durch die kennzeichnenden Merkmale der Schutzansprüche 1, 2, 4 und 8 erreicht.This effect is achieved by the characterising features of claims 1, 2, 4 and 8.
Eine vorteilhafte Ausgestaltung der Erfindung ist in den Schutzansprüchen 3 und 5An advantageous embodiment of the invention is set out in claims 3 and 5
angegeben.specified.
Die Weiterbildung nach den Schutzansprüchen 3 und 5 ermöglicht die Voreinstellung des Verstärkungsfaktors und erlaubt damit die Anpassung der Bremsleistung an die Vorlieben des Benutzers.The further development according to claims 3 and 5 enables the presetting of the gain factor and thus allows the braking power to be adapted to the user's preferences.
Eine nochmalige Verfeinerung wird im Schutzanspruch 7 dargestellt.
Die Ausführung nach dem Schutzanspruch 7 erlaubt eine selbsttätige Veränderung des
Verstärkungsfaktors mit dem Leistungsbedarf. So kann die Kurve der Verstärkung über
dem Leistungsbedarf wahlweise progressiv oder degressiv gewählt werden.A further refinement is presented in claim 7.
The design according to claim 7 allows an automatic change of the amplification factor with the power requirement. The curve of the amplification over the power requirement can thus be selected to be either progressive or degressive.
Einige Ausführungsbeispiele der Erfindung werden anhand der Figur 1 bis 5 erläutert. Es zeigen:Some embodiments of the invention are explained using Figures 1 to 5. They show:
Fig. 1 eine Felgenbremse mit Schubstreben (2)Fig. 1 a rim brake with push rods (2)
Fig. 2 eine Felgenbremse mit an einstellbaren Rampen (4) entlanglaufenden Rollen (3)
Fig. 3 eine Felgenbremse mit an elastisch verformbaren Kurvensegmenten (5) entlanglaufenden
Rollen (3)Fig. 2 a rim brake with rollers (3) running along adjustable ramps (4)
Fig. 3 a rim brake with rollers (3) running along elastically deformable curve segments (5)
Fig. 4 eine Felgenbremse mit als Schlitten auf Führungsschienen (7a) laufenden Backenträgern (1)Fig. 4 a rim brake with shoe carriers running as a carriage on guide rails (7a) (1)
Fig. 5 eine Scheibenbremse mit als Schlitten auf Führungsrollen (7b) laufenden Backenträgern (1)Fig. 5 a disc brake with shoe carriers running as a carriage on guide rollers (7b) (1)
In Fig. 1 sind die Backenträger (1) auf den Wellen (13) und (14) quasi kardanisch drehbar gelagert. Werden die Backenträger über den Seilzug (15) mit den Bremsbacken (10) gegen die in Pfeilrichtung rotierende Felge (8) gedrückt. Dabei werden die Backenträger mitgenommen und stützen sich gegen die Schubstreben (2) ab. Da der Winkel a>0° ist, entsteht eine zusätzliche Anpreßkraft durch die „Verkeilung" dieser Schubstreben (2). Mit der Wahl zwischen den Anlenkbolzen A, B und C kann der Winkel &agr; und damit das Maß der Verstärkung variiert werden.In Fig. 1, the shoe supports (1) are mounted on the shafts (13) and (14) in a way that allows them to rotate in a quasi-cardanic manner. The shoe supports are pressed against the rim (8) rotating in the direction of the arrow (8) by the cable pull (15) with the brake shoes (10). The shoe supports are thereby carried along and brace themselves against the push rods (2). Since the angle a>0°, an additional contact force is created by the "wedging" of these push rods (2). By choosing between the linkage bolts A, B and C, the angle α and thus the degree of reinforcement can be varied.
Fig. 2 zeigt eine Version der Felgenbremse, welche im wesentlichen Fig. 1 entspricht aber anstelle der Schubstreben (2) Rollen (3) besitzt, die an Rampen (4) entlangrollen. Nach dem Lösen der Schrauben (16) können die Rampen um den Bolzen (17) gedreht werden, wodurch sich der Rampenwinkel (ß) und damit der Verstärkungsfaktor ändert. Anstelle der Rampen (4) können auch einstellbare Kurvensegmente (5) gemäß Fig. 3 installiert werden.Fig. 2 shows a version of the rim brake which essentially corresponds to Fig. 1 but instead of the push rods (2) has rollers (3) which roll along ramps (4). After loosening the screws (16), the ramps can be rotated around the bolt (17), which changes the ramp angle (ß) and thus the amplification factor. Instead of the ramps (4), adjustable curve segments (5) as shown in Fig. 3 can also be installed.
Fig. 3 stellt eine Felgenbremse in Bremsstellung dar, die in ihrem grundsätzlichen Aufbau Fig. 2 entspricht. Die Konstruktion ist jedoch unter Zuhilfenahme der Gabelbrücke (18) und entsprechend biegeweicher Grundgestaltung bewußt elastisch ausgelegt. Bei geringer Bremsleistung drücken die Rollen (3) nur wenig gegen die konvexen Kurvensegmente (5), welche das Bestreben haben, nach außen auszuweichen. Der Keilwinkel (ßmü,) ist entsprechend klein. Bei hoher Bremsleistung weitet sich die Gabelbrücke (18) auf und die Rollen (3) greifen an einem entsprechend verschobenen Punkt der Kurvensegmente (5) an. Damit vergrößert sich der Keilwinkel (ßmax) und der Verstärkungsfaktor steigt, die Kennlinie der Verstärkung über der Bremsleistung ist progressiv. Werden konkave Kurvensegmente verwendet, ist diese Kennlinie degressiv.Fig. 3 shows a rim brake in braking position, which corresponds in its basic structure to Fig. 2. However, the construction is deliberately designed to be elastic with the aid of the fork bridge (18) and a correspondingly flexible basic design. When the braking power is low, the rollers (3) press only slightly against the convex curve segments (5), which tend to move outwards. The wedge angle (ßmü,) is correspondingly small. When the braking power is high, the fork bridge (18) widens and the rollers (3) engage at a correspondingly shifted point on the curve segments (5). This increases the wedge angle (ßmax) and the gain factor increases; the characteristic curve of the gain versus the braking power is progressive. If concave curve segments are used, this characteristic curve is degressive.
Fig. 4 stellt eine Felgenbremse dar, bei der tangential zur Felge Führungsstangen (7a) angeordnet sind, auf denen die Backenträger (1) als Schlitten auf Rollen (7b) entlangrollen. Dabei verringert sich der Abstand zwischen beiden Stangeneinheiten mit der Drehrichtung der Felge. Über einen Seilzug werden die Bremsbacken (10) von den Backenträgern (1) an die Felge gezogen und von dieser mitgenommen, wodurch eine reversible „Verkeilung" erfolgt. Eine Version mit gebogenen Stangeneinheiten und nichtlinearer Kennlinie ist ebenso denkbar wie eine hydraulische Betätigung gemäß Fig. 5.Fig. 4 shows a rim brake in which guide rods (7a) are arranged tangentially to the rim, on which the shoe carriers (1) roll along as a carriage on rollers (7b). The distance between the two rod units decreases with the direction of rotation of the rim. The brake shoes (10) are pulled by the shoe carriers (1) to the rim via a cable and are carried along by it, which results in reversible "wedging". A version with curved rod units and non-linear characteristic curve is just as conceivable as hydraulic actuation as shown in Fig. 5.
Fig. 5 bildet eine Scheibenbremse ab, deren Funktionsweise Fig. 4 entspricht, wobei die Backenträger (1) einen Führungssteg (7c) besitzen und die Rollen (7b) am Bremssattel (19) sitzen. Die Backenträger (1) können gemeinsam mit den Bremsbacken (10) nach Abschrauben des Kolbengehäuses (20) aus dem Sattel gezogen werden.Fig. 5 shows a disc brake, the function of which corresponds to Fig. 4, whereby the shoe carriers (1) have a guide bar (7c) and the rollers (7b) are located on the brake calliper (19). The shoe carriers (1) can be pulled out of the calliper together with the brake shoes (10) after unscrewing the piston housing (20).
Die erfindungsgemäßen Bremsen ermöglichen ein nahezu beliebiges Leistungsspektrum, ohne dabei wesentlich aufwendiger als die bisher bekannten Ausführungen zu sein.The brakes according to the invention enable almost any performance spectrum, without being significantly more complex than the previously known designs.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29901831U DE29901831U1 (en) | 1999-02-03 | 1999-02-03 | Shoe brake with servo effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29901831U DE29901831U1 (en) | 1999-02-03 | 1999-02-03 | Shoe brake with servo effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29901831U1 true DE29901831U1 (en) | 1999-05-06 |
Family
ID=8068854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29901831U Expired - Lifetime DE29901831U1 (en) | 1999-02-03 | 1999-02-03 | Shoe brake with servo effect |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29901831U1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1550816A3 (en) * | 2003-12-29 | 2006-07-26 | ArvinMeritor Technology, LLC | Gain stabilizing self-energized brake mechanism |
| DE102005027916A1 (en) * | 2005-06-16 | 2007-01-04 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Vehicle brake in self-reinforcing design |
| WO2007045430A1 (en) * | 2005-10-18 | 2007-04-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake with a self-energising electric motor actuator |
| DE102006002254B3 (en) * | 2006-01-17 | 2007-07-05 | Siemens Ag | Self-energizing brake e.g. for motor vehicle, has frictional member, which can be pressed by actuator, against friction surface of element to be braked or disengaged |
| WO2007101614A1 (en) | 2006-03-06 | 2007-09-13 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disk brake comprising an energy store |
| WO2009062970A1 (en) * | 2007-11-16 | 2009-05-22 | Robert Bosch Gmbh | Disc brake with mechanical self-energization |
| ITMI20130929A1 (en) * | 2013-06-06 | 2014-12-07 | Freni Brembo Spa | PADS REPLACEMENT KIT, BODY ASSEMBLY CALIPER, PASTE AND INSERT AND METHOD TO EXERCISE A MODIFIED BRAKING ACTION |
| WO2014195910A1 (en) * | 2013-06-06 | 2014-12-11 | Freni Brembo S.P.A. | Pad replacement kit, caliper body, pad and insert assembly and method of exerting a modified braking action |
-
1999
- 1999-02-03 DE DE29901831U patent/DE29901831U1/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1550816A3 (en) * | 2003-12-29 | 2006-07-26 | ArvinMeritor Technology, LLC | Gain stabilizing self-energized brake mechanism |
| DE102005027916A1 (en) * | 2005-06-16 | 2007-01-04 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Vehicle brake in self-reinforcing design |
| DE102005027916B4 (en) * | 2005-06-16 | 2013-04-11 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Vehicle brake in self-reinforcing design |
| RU2408803C2 (en) * | 2005-10-18 | 2011-01-10 | Кнорр-Бремзе Зюстеме Фюр Нутцфарцойге Гмбх | Disk brake with electric engine actuator in form of structure with self amplification |
| WO2007045430A1 (en) * | 2005-10-18 | 2007-04-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake with a self-energising electric motor actuator |
| US7946397B2 (en) | 2005-10-18 | 2011-05-24 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Disc brake with a self-energizing electric motor actuator |
| DE102006002254B3 (en) * | 2006-01-17 | 2007-07-05 | Siemens Ag | Self-energizing brake e.g. for motor vehicle, has frictional member, which can be pressed by actuator, against friction surface of element to be braked or disengaged |
| DE102006010216B3 (en) * | 2006-03-06 | 2007-10-25 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disc brake with energy storage |
| WO2007101614A1 (en) | 2006-03-06 | 2007-09-13 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disk brake comprising an energy store |
| WO2009062970A1 (en) * | 2007-11-16 | 2009-05-22 | Robert Bosch Gmbh | Disc brake with mechanical self-energization |
| ITMI20130929A1 (en) * | 2013-06-06 | 2014-12-07 | Freni Brembo Spa | PADS REPLACEMENT KIT, BODY ASSEMBLY CALIPER, PASTE AND INSERT AND METHOD TO EXERCISE A MODIFIED BRAKING ACTION |
| WO2014195910A1 (en) * | 2013-06-06 | 2014-12-11 | Freni Brembo S.P.A. | Pad replacement kit, caliper body, pad and insert assembly and method of exerting a modified braking action |
| US9933033B2 (en) | 2013-06-06 | 2018-04-03 | Freni Brembo S.P.A. | Pad replacement kit, caliper body, pad and insert assembly and method of exerting a modified braking action |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R086 | Non-binding declaration of licensing interest | ||
| R207 | Utility model specification |
Effective date: 19990617 |
|
| R197 | New subsequently filed claims on ip dossier | ||
| R156 | Lapse of ip right after 3 years |
Effective date: 20020829 |