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DE2502090A1 - Hydraulic operation of brakes - by ring shaped piston mounted between brake pad carriers - Google Patents

Hydraulic operation of brakes - by ring shaped piston mounted between brake pad carriers

Info

Publication number
DE2502090A1
DE2502090A1 DE19752502090 DE2502090A DE2502090A1 DE 2502090 A1 DE2502090 A1 DE 2502090A1 DE 19752502090 DE19752502090 DE 19752502090 DE 2502090 A DE2502090 A DE 2502090A DE 2502090 A1 DE2502090 A1 DE 2502090A1
Authority
DE
Germany
Prior art keywords
ring
sealing
rings
brake
cylinder
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
DE19752502090
Other languages
German (de)
Other versions
DE2502090C2 (en
Inventor
Hermann Dr Ing Klaue
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.)
Daetwyler AG Schweizerische Kabel Gummi und Kunststoffwerke
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19752502090 priority Critical patent/DE2502090C2/en
Priority to US05/642,160 priority patent/US4024931A/en
Publication of DE2502090A1 publication Critical patent/DE2502090A1/en
Application granted granted Critical
Publication of DE2502090C2 publication Critical patent/DE2502090C2/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
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/54—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment
    • 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
    • F16D55/04—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 moving discs or pads away from one another against radial walls of drums or cylinders
    • F16D55/06—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 moving discs or pads away from one another against radial walls of drums or cylinders without self-tightening action
    • F16D55/10—Brakes actuated by a fluid-pressure device arranged in or on the 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
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0037—Protective covers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The brake arrangement consist of a disc, which is mounted on a shaft, and which has a U shaped channel around its circumference. Rings with brake pads are mounted in this channel and are pushed apart against the sidewalls of the channel by a piston in a hydraulic cylinder. The piston is ring shaped and fits in a ring of U shaped section. Hydraulic fluid is admitted in the cylinder behind the ring. Cylinder and piston are free to move axially in the channel so that forces which are exerted push the brake rings, of which one ring has a circular section by two sealing rings, of which one ring has a circular section and is only used for sealing, the other ring has a square section and fits in a groove in the cylinder with sloping side, so that a certain amount of elastic deformation occurs which exerts a restoring force on the piston.

Description

hydraulische Ringbetätigung für Vollbelagscheibenbremsen, insbesondere für Kraftfahrzeuge. hydraulic ring actuation for fully lined disc brakes, in particular for automobiles.

Die Erfindung bezieht sich auf Vollbelagscheibenbremsen der Bauart des Anmelders mit umlaufenden, aussen otí~enel weiteiligen Bremsgehäuse und einander zugekehrten Bremsfl.ichen, zwischen denen, an einem stationären, das Bremsgehäuse umfassenden Bremsträger, in Umfangsrichtung fest, axial frei beweglich, die die Bremsbeläge tragenden Bremsring sowie zwischen letzteren, von ihnen getrennt, konzentrisch zur Bremsenmittenachse, die zwei- oder mehrteilige, ringförmige Hydraulikbetätigung aufgehängt sind, wobei LliC Abdichtung der Ringe der Hydraulikbetätigung durch in Nuten in mindestens einem der stufenförmig ausgebildeten Ringe liegende Dichtringe erfolgt.The invention relates to full-lined disc brakes of the type of the applicant with circumferential, externally otí ~ enel large-part brake housing and each other facing Bremsfl.ichen, between which, on a stationary, the brake housing comprehensive brake carrier, fixed in the circumferential direction, axially freely movable, which the Brake ring carrying the brake linings and between the latter, separated from them, concentrically to the brake center axis, the two-part or multi-part, ring-shaped hydraulic actuation are suspended, whereby LliC sealing of the rings of the hydraulic actuation by in Grooves in at least one of the step-shaped rings lying sealing rings he follows.

Die Erfindung betrifft die hydraulische Betätigung dies Bremsbauart.The invention relates to the hydraulic actuation of this type of brake.

Die Bearbeitung der abzudichtenden zylindrischen Flächen sowie der Nuten der Dichtringe, welche zur Aufgabe einer einwandfreien Abdichtung zusätzlich die Nachstelifunktion-- zu übernehmen haben, muss mit grosser Genauigkeit durchgcführt werden, wobei erfahrungsgemäss ein auf Zug montierter, also in einer nach innen reichenden Nut untergebrachter Dichtring, abgesehen von der leichteren Möglichkeit der Montage, in seiner Funktion zuverlässiger ist als ein auf Druck, also ein in einer nach aussen reichenden Nut untergebrachter- Dichtring.The machining of the cylindrical surfaces to be sealed as well as the Grooves of the sealing rings, which are also used to provide a perfect seal the adjustment function - must be carried out with great accuracy , whereby experience has shown that one is mounted on a train, i.e. in an inward direction Reaching groove housed sealing ring, apart from the easier option the assembly, is more reliable in its function than an on-pressure, i.e. an in a sealing ring accommodated in an outwardly extending groove.

I)ie Irfindunghat sich zur Aufgabe gesetzt, zßorstellende Erkenntnisse zu verwerten und die Bremse der oben beschriebenen Bauform in Richtung auf einfachere Herstellung und sicherere Funktion weiter zu entwickeln.I) he discovery has set itself the task of presenting knowledge to utilize and the brake of the design described above in the direction of simpler ones Further develop manufacturing and safer function.

Bisher ist eine Bauform bekannt, bei der in einem Ringzylinder ein Ringkolben angeordnet ist, wobei der Rücken des Ringzylinders auf einen Bremsring und der Ringkolben auf den anderen Bremsring drückt. Die Abdichtung der beiden Ringteile erfolgt durch Dichtringe von viereckigem Querschnitt, welche in Nuten, die im Ringzylinder angeordnet sind, liegen, wobei die Nuten eine axiale Verformung der Dichtringe bei der Betätigung in einem derartigen Umfang zulassen, dass von einem bestimmten Lüfthub ab der Ringkolben unter der Dichtung durchrutscht und beim Lösen der Bremse das durch die Formgebung der Nut gegehene lüftspiel wieder einstellt. Weiterhin ist eine Bauform bekannt, bei der beide Betätigungsteile als Stufenringe ausgebildet sind und in jedem der Stufenringe ein Dichtring sitzt.So far, a design is known in which a ring cylinder Ring piston is arranged, the back of the ring cylinder on a brake ring and the annular piston presses on the other brake ring. The sealing of the two ring parts is made by sealing rings of square cross-section, which are in grooves in the ring cylinder are arranged, are, the grooves at an axial deformation of the sealing rings allow actuation to such an extent that of a certain release stroke from the ring piston slips under the seal and when the brake is released the the clearance that has passed due to the shape of the groove is restored. Furthermore is a design known in which both actuating parts are designed as step rings and a sealing ring is located in each of the step rings.

Die erfindungsgemässe Ausbildung der Hydraulikbetätigung besteht darin, dass von den erforderlichen, mindestens zwei Dichtringen ausschliesslich einer der Dichtringe neben der Abdicht- auch die Nachstellfunktion übernimmt. In weiterer Ausbildung der Erfindung ist bei Anwendung eines Ringzylinders und eines Ringkolbens der Dichtring mit Abdicht- und Nachstellfunktion auf der inneren Zylinderfläche des Ringzylinders und der Dichtring mit Abdichtfunktion auf der äusseren Zylinderfläche des Ringkolbens angeordnet.The inventive design of the hydraulic actuation consists in that of the required, at least two sealing rings, only one of the In addition to the sealing function, sealing rings also take on the adjustment function. In further The invention is based on the use of an annular cylinder and an annular piston the sealing ring with sealing and adjustment function on the inner cylinder surface of the ring cylinder and the sealing ring with sealing function on the outer cylinder surface of the annular piston arranged.

In weiterer Ausbildung der Erfindung wird bei Anwendung von zwei Stufenringen der innere Stufenring sowohl mit dem Dichtring mit Abdicht- und Nachstellfunktion wie mit dem Dichtring mit Abdichtfunktion ausgerüstet.In a further embodiment of the invention, when using two step rings the inner step ring with the sealing ring with sealing and adjustment function as equipped with the sealing ring with sealing function.

In den Abbildungen sind Ausführungsbeispiele der Erfindung dargestellt. Fig. 1 stellt den Längsschnitt durch eine Vorderradbremse eines Personenkraftwagens und Fig. 2 einen Teillängsschnitt durch eine Hinterradbremse dar. Bei der Vorderradbremse ist eine Betätigung mit Ringzylinder ind Ringkolben und bei der Ilinterradbremse nach Fig. 2 eine solche mit zwei Stufenringen wiedergegeben.Exemplary embodiments of the invention are shown in the figures. Fig. 1 shows the longitudinal section through a front brake of a passenger car and FIG. 2 shows a partial longitudinal section through a rear wheel brake. In the case of the front wheel brake is an actuation with ring cylinder and ring piston and with the rear wheel brake according to FIG. 2, one with two step rings is shown.

In Fig. 1 ist mit 1 der Achsschenkel gekennzeichnet, der die Nabe 2 trägt, -an der mittels Radbolzen 3 und Muttern 4 das Rad 5 sowie das zweiteilige, aus Deckelteil 6 und Gehäuseteil 7 bestehende Bremsgehäuse befestigt ist. Dcckel- und Ge11ällseteil sind durch Schrauben 8 miteinander verbunden. Am Achsschenkel 1 ist mittels Schrauben 9 der Bremsträger 10 befestigt, an dem die mit Bremsbelag ausgerüsteten Rremsringe 11 und 12 axial frei beweglich, in Umfangsrichtung fest, gelagert sind. Zwischen den Bremsringen sitzt die aus Ringzylinder 13 und Ringkolben 14 bestehende hydraulische Betätigungseinheit, derem Ringraum fiber die Oe}leitung 15 Driicköi zugeführt wird. Schutzbälge 16 und 17 schützen die Ringkolben- und Ringzylinderflächen gegen eindringenden Schmutz. In einer Nut 131 des Ringzylinders 13 sitzt der Dichtring 18 mit viereckigem Querschnitt. Die Nut 131 ist durch eine in Betätigungsrichtung abgeschrägte Nutwand derart ausgebildet, dass eine Verformung des Ringes in axialer Richtung zur Einhaltung eines Lüftspieles möglich ist. Der Ringkolben 14 dagegen besitzt eine einfache Nut 141, in der ein normaler Rundschnurdichtring 19 liegt, der lediglich eine Dichtfunktion übernimmt und keine Rückstellkräfte erzeugen kann.In Fig. 1, 1 denotes the steering knuckle, which is the hub 2 carries, -on the wheel 5 and the two-part, by means of wheel bolts 3 and nuts 4 from cover part 6 and housing part 7 existing brake housing is attached. Lid- and Ge11ällseteil are connected to each other by screws 8. On the steering knuckle 1 is fastened by means of screws 9 of the brake carrier 10, on which the brake pad equipped Rremsringe 11 and 12 axially freely movable, fixed in the circumferential direction, are stored. The ring cylinder 13 and ring piston sit between the brake rings 14 existing hydraulic actuation unit, whose annulus over the Oe} line 15 pressure oil is supplied. Protective bellows 16 and 17 protect the annular piston and annular cylinder surfaces against penetrating dirt. The sealing ring is seated in a groove 131 of the ring cylinder 13 18 with a square cross-section. The groove 131 is through one in the operating direction beveled groove wall designed in such a way that a deformation of the ring in the axial direction Direction to maintain a clearance is possible. The annular piston 14 on the other hand has a simple groove 141 in which a normal round cord sealing ring 19 is located, which only takes on a sealing function and cannot generate any restoring forces.

Bei der in Fig. 2 dargestellten Hinterradbremse ist das Rad 20 mittels Kugelbundbolzen 21 am Achswellenflansch 22 befestigt, ebenso das aus Deckelteil 23 und Gehäuseteil 24 bestehende Bremsgehäuse. Bei dieser Hinterradbremse dient der zylindrische pfeil 241 des Gehäuseteils 24 als Trommel für die Feststellbremse, die über den Zug 25 betätigt wird.In the rear wheel brake shown in Fig. 2, the wheel 20 is means Ball stud bolts 21 attached to the axle shaft flange 22, as well as that from the cover part 23 and housing part 24 existing brake housing. This rear brake is used the cylindrical arrow 241 of the housing part 24 as a drum for the Parking brake, which is operated via the train 25.

Deckel- und Gehäuseteil des Bremsgehäuses sind durch Schrauben 26 miteinander verbunden. Am stationären Bremsträger 27, an dem auch die nicht mit dargestellten Backen der Feststellbremse aufgehängt sind, sind an seinem trommelförmigen Aussenteil axial frei beweglich, in Umfangsrichtung fest, die mit Bremsbelag ausgerüsteten Bremsring 28 und "4 abgestützt. Zwischen den Bremsringen sitzt die aus dem Aussenring 30 und dem Innenring 31 bestehende Stufenzylinderbetätigung, deren Stufenraum 32 über die Leitung 33 mit Drucköl vcrsorgt wird. Schutzbälge 34 und 35 schützen die zylindrischen Dichtflächen gegen eindringenden Schmutz. Die Abdichtung der Stufenzylinderbetätigung erfolgt durch den in der Sut 311 im inneren Stufenzylinderteil 31 angeordneten, M-dicht- und Nachstcllfunktion ausübenden Dichtring mit viereckigem Querschnitt 36 sowie durch den in der Nut 312 des inneren Stufenzylinderteils 31 liegenden Rundschnurr-íng 37.The cover and housing parts of the brake housing are secured by screws 26 connected with each other. On the stationary brake carrier 27, on which the not with The illustrated jaws of the parking brake are suspended on its drum-shaped Outer part axially freely movable, fixed in the circumferential direction, which are equipped with a brake lining Brake ring 28 and "4 supported. The one from the outer ring sits between the brake rings 30 and the inner ring 31 existing stepped cylinder actuation, the step space 32 is supplied via line 33 with pressure oil. Protective bellows 34 and 35 protect the cylindrical sealing surfaces against ingress of dirt. The sealing of the stepped cylinder actuation takes place by the arranged in the seat 311 in the inner stepped cylinder part 31, Sealing ring with a square cross-section and performing an M-sealing function 36 as well as by the O-ring lying in the groove 312 of the inner stepped cylinder part 31 37.

Claims (3)

P a t e n t a n s p r ü c h e P a t e n t a n s p r ü c h e Hydraulische Ringbetätigung für Vollbelagscheibenbremsen, insbesondere für Kraftfahrzeuge, bei denen in einem umlaufenden, zweiteiligen, aussen offenen Bremsgehäuse mit einander zugekehrten Bremsflächen an einem stationären, das Bremsgehäuse umfassenden Bremsträger in Um£angsrichtung fest, axial frei beweglich, die die Bremsbeläge tragenden Bremsringe sowie zwischen letzteren, von ihnen getrennt, konzentrisch zur Bremsenmittenachse, die we i-oder mehrteilige, ringförmige Hydraulikbetätigung aufgehängt sind, wobei die Abdichtung der Ringe der Hydraulikbetätigung durch in Nuten in mindestens einem der Ringe liegende Dichtringe erfolgt, dadurch gekennzeichnet, dass von den erforderlichen, mindestens zwei Dichtringen (18, 19; 36, 37) ausschliesslich einer der Dichtringe (18; 36) neben der Abdicht- ac die Nachstellfunktion übernimmt.Hydraulic ring actuation for fully lined disc brakes, in particular for motor vehicles in which in a circumferential, two-part, open on the outside Brake housing with facing braking surfaces on a stationary, the brake housing Comprehensive brake carrier in the circumferential direction fixed, axially freely movable, which the brake pads bearing brake rings as well as between the latter, separated from them, concentric to the brake center axis, the white or multi-part, ring-shaped hydraulic actuation are suspended, the sealing of the rings of the hydraulic actuation by in Grooves in at least one of the rings is located sealing rings, characterized in that that of the required, at least two sealing rings (18, 19; 36, 37) exclusively one of the sealing rings (18; 36) in addition to the sealing ac assumes the adjustment function. 2) Hydraulische Ringbetätigung für Vollbelagscheibenbremsen nach Anspruch 1 dadurch gekennzeichnet, dass bei Anwendung eines Ringzylinders (13) und eines Ringkolbens (14) der Dichtring mit Abdicht- und Nachstellfunktion (18) auf der inneren Zylinderfläche des Ringzylinders (13) und der Dichtring mit Abdichtfunktion (19) auf der äusseren Zvlinderfläche des Ringkolbens (14) angeordnet ist. 2) Hydraulic ring actuation for fully lined disc brakes according to Claim 1 characterized in that when using a ring cylinder (13) and an annular piston (14) on the sealing ring with sealing and adjusting function (18) the inner cylinder surface of the ring cylinder (13) and the sealing ring with sealing function (19) is arranged on the outer cylinder surface of the annular piston (14). 3) Hydraulische Ringbetätigung für Vollbelagscheibenbremsen nach Anspruch 1 dadurch gekennzeichnet, dass bei Anwendung von zwei Stufenringen (30, 31) der innere Stufenring (31) sowohl mit dem Dichtring mit Abdicht- und Nachstellfunktion (36) als auch mit dem Dichtring mit Abdichtfunktion (37) ausgerüstet ist.3) Hydraulic ring actuation for fully lined disc brakes according to claim 1 characterized in that when using two step rings (30, 31) of the inner step ring (31) with both the sealing ring with sealing and adjustment function (36) and is equipped with the sealing ring with sealing function (37).
DE19752502090 1969-12-02 1975-01-20 Hydraulic ring actuation for fully lined disc brakes, in particular for motor vehicles Expired DE2502090C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19752502090 DE2502090C2 (en) 1975-01-20 1975-01-20 Hydraulic ring actuation for fully lined disc brakes, in particular for motor vehicles
US05/642,160 US4024931A (en) 1969-12-02 1975-12-18 Disk brake assembly for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752502090 DE2502090C2 (en) 1975-01-20 1975-01-20 Hydraulic ring actuation for fully lined disc brakes, in particular for motor vehicles

Publications (2)

Publication Number Publication Date
DE2502090A1 true DE2502090A1 (en) 1976-07-22
DE2502090C2 DE2502090C2 (en) 1984-08-02

Family

ID=5936817

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752502090 Expired DE2502090C2 (en) 1969-12-02 1975-01-20 Hydraulic ring actuation for fully lined disc brakes, in particular for motor vehicles

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DE (1) DE2502090C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2736969A1 (en) * 1977-08-17 1979-03-01 Klaue Hermann Protective bellows for vehicle disc brake assembly - has bellows encased in metal sheet to exclude dirt and water but allow cooling air access
DE19528434A1 (en) * 1995-08-02 1997-02-06 Bayerische Motoren Werke Ag Brake disc for road vehicle - comprises friction ring, hub-shaped support part and several connecting components screwed to support part

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0830516A1 (en) * 1995-06-08 1998-03-25 Hermann Klaue Disc brake, especially for motor vehicles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2343005A1 (en) * 1972-11-17 1974-06-27 Hermann Dr-Ing Klaue FULL-LID DISC BRAKE, ESPECIALLY FOR VEHICLES

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2343005A1 (en) * 1972-11-17 1974-06-27 Hermann Dr-Ing Klaue FULL-LID DISC BRAKE, ESPECIALLY FOR VEHICLES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2736969A1 (en) * 1977-08-17 1979-03-01 Klaue Hermann Protective bellows for vehicle disc brake assembly - has bellows encased in metal sheet to exclude dirt and water but allow cooling air access
DE19528434A1 (en) * 1995-08-02 1997-02-06 Bayerische Motoren Werke Ag Brake disc for road vehicle - comprises friction ring, hub-shaped support part and several connecting components screwed to support part
DE19528434B4 (en) * 1995-08-02 2004-04-15 Bayerische Motoren Werke Ag brake disc

Also Published As

Publication number Publication date
DE2502090C2 (en) 1984-08-02

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OGA New person/name/address of the applicant
OGA New person/name/address of the applicant
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Owner name: KLAUE, HERMANN, DR.-ING., 3302 CREMLINGEN, DE

8125 Change of the main classification

Ipc: F16D 55/06

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee
8327 Change in the person/name/address of the patent owner

Owner name: DAETWYLER AG SCHWEIZERISCHE KABEL-, GUMMI- UND KUN

8381 Inventor (new situation)

Free format text: KLAUE, HERMANN, DR.-ING., 3302 CREMLINGEN, DE

8327 Change in the person/name/address of the patent owner

Owner name: DAETWYLER AG SCHWEIZERISCHE KABEL-, GUMMI- UND KUN

8381 Inventor (new situation)

Free format text: KLAUE, HERMANN, DR.-ING., 3302 CREMLINGEN, DE