EP0243665A2 - Arrangement for the cursor on the distribution rotor axle of a combustion engine - Google Patents

Arrangement for the cursor on the distribution rotor axle of a combustion engine Download PDF

Info

Publication number
EP0243665A2
EP0243665A2 EP87104165A EP87104165A EP0243665A2 EP 0243665 A2 EP0243665 A2 EP 0243665A2 EP 87104165 A EP87104165 A EP 87104165A EP 87104165 A EP87104165 A EP 87104165A EP 0243665 A2 EP0243665 A2 EP 0243665A2
Authority
EP
European Patent Office
Prior art keywords
shaft
clamping screw
axis
arrangement
bushing
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
EP87104165A
Other languages
German (de)
French (fr)
Other versions
EP0243665B1 (en
EP0243665A3 (en
Inventor
Rolf Rink
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.)
OFFERTA DI LICENZA AL PUBBLICO
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0243665A2 publication Critical patent/EP0243665A2/en
Publication of EP0243665A3 publication Critical patent/EP0243665A3/en
Application granted granted Critical
Publication of EP0243665B1 publication Critical patent/EP0243665B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/021—Mechanical distributors
    • F02P7/022—Details of the distributor rotor or electrode

Definitions

  • the invention relates to a mounting arrangement for runners on shafts of ignition distributors for internal combustion engines according to the preamble of claim 1.
  • Such an arrangement with a metal bushing and a clamping screw is therefore necessary in highly loaded ignition distributors, on the one hand to deflect the rotor and on the other hand to climb it up To prevent wave.
  • Such an arrangement acting as a locking mechanism for the cylinder guide is known, for example, from DE-OS 34 05 267 A1, in which the end section of the shaft has a line contact on the inner wall of the bushing. Although the contact area of the clamping screw with the end section of the shaft is large, the high load results in a drilling effect. Of the clamping screw, which in turn leads to surface deformation and consequently causes the rotor to loosen from the shaft; Here, destruction of the internal combustion engine is not excluded.
  • the problem set out above is solved with technically simple means and achieved that the fastening arrangement does not loosen or loosen even under difficult operating conditions and consequently no damage is caused in this regard.
  • the invention is based on the idea of using the principle of double cylinder guidance used in so-called lathe hearts of lathes.
  • Claim 2 shows a technically simple way of producing the flattening. With claim 3 one achieves a favorable width of the flat surface.
  • FIG. 1 An embodiment of the invention is shown in the drawing and explained in more detail in the description of the figures.
  • the single figure shows an enlarged view of a rotor fixed to a shaft of an ignition distributor for internal combustion engines by means of a fastening arrangement in a partially sectioned bottom view.
  • FIG. 1 The only figure of an ignition distributor for internal combustion engines shows its shaft 10 with the axis of rotation 11 and its rotor 12 made of insulating material with a finger 13 with an electrode 14 arranged transversely to the axis of rotation 11 , in which a metal bushing 16 is inserted.
  • a radial internal thread is angeord- 18 n et, which interacts with a clamping screw 17th
  • This has a conical pressure part 19 and projects through an opening 20 of the sleeve 15, which is radial to the axis 21 of the clamping screw 17.
  • the end section of the shaft 10 has a conical recess 23 which receives the pressure part 19 of the clamping screw 17 and diametrically opposite this as a flat surface 22; this is parallel to the axis 11 of the shaft 10 and its extension transverse to the axis 21 is approximately 70 degrees of angle according to the double arrow 24.
  • the surface 22 forms with the jacket 25 of the end portion of the shaft 10 prisms 26, which then line contact with the inner wall 27 of the socket 16 25 have when - as shown - the clamping screw 17 acts on the end portion of the shaft 10 according to arrow 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

The end section of the shaft (10) has a plane surface (22) parallel to the axis of rotation (11) and diametrically opposite this surface a recess (23). A metal bush (16) is fixed in the sleeve (15) of the rotor (12) concentrically with the axis of rotation (11) and in the bush (16) opposite the surface (22) is a radially adjustable clamping screw (17). This clamping mechanism having two linear guides (vee-blocks) prevents surface deformation in the area of the recess (23) in the shaft (10) so that the fixing arrangement does not work loose even under severe operating conditions. <IMAGE>

Description

Stand der TechnikState of the art

Die Erfindung betrifft eine Befestigungsanordnung für Läufer an Wellen von Zündverteilern für Brennkraftmaschinen nach der Gattung des Anspruchs 1. Eine derartige Anordnung mit einer Metallbuchse und einer Klemmschraube ist bei hochbelasteten Zündverteilern deshalb erforderlich, um zum einen ein Ausschlagen des Läufers und zum anderen dessen Hochsteigen an der Welle zu verhindern. Eine solche als Klemmgesperre für Zylinderführung wirkende Anordnung ist beispielsweise aus der DE-OS 34 05 267 A1 bekannt, bei welcher der Endabschnitt der Welle einen Linienkontakt an der Innenwandung der Buchse hat. Obwohl die Berührungsfläche der Klemmschraube mit dem Endabschnitt der Welle großflächig ist, kommt es aufgrund der hohen Belastung zu einer Bohrwirkung.der Klemmschraube, was wiederum zu Oberflächenverformungen führt und mithin das Lockern des Läufers von der Welle nach sich zieht; hierbei ist eine Zerstörung der Brennkraftmaschine nicht ausgeschlossen.The invention relates to a mounting arrangement for runners on shafts of ignition distributors for internal combustion engines according to the preamble of claim 1. Such an arrangement with a metal bushing and a clamping screw is therefore necessary in highly loaded ignition distributors, on the one hand to deflect the rotor and on the other hand to climb it up To prevent wave. Such an arrangement acting as a locking mechanism for the cylinder guide is known, for example, from DE-OS 34 05 267 A1, in which the end section of the shaft has a line contact on the inner wall of the bushing. Although the contact area of the clamping screw with the end section of the shaft is large, the high load results in a drilling effect. Of the clamping screw, which in turn leads to surface deformation and consequently causes the rotor to loosen from the shaft; Here, destruction of the internal combustion engine is not excluded.

Vorteile der ErfindungAdvantages of the invention

Mit der Erfindung wird das vorstehend dargelegte Problem mit technisch einfachen Mitteln gelöst und erreicht, daß auch unter erschwerten Betriebsbedingungen die Befestigungsanordnung sich nicht lockert oder löst und mithin diesbezügliche Schäden nicht verursacht werden. Der Erfindung liegt der Gedanke zugrunde, das bei sogenannten Drehherzen von Drehmaschinen verwendete Prinzip der zweifachen Zylinderführung zu verwenden.With the invention, the problem set out above is solved with technically simple means and achieved that the fastening arrangement does not loosen or loosen even under difficult operating conditions and consequently no damage is caused in this regard. The invention is based on the idea of using the principle of double cylinder guidance used in so-called lathe hearts of lathes.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben. Mit Anspruch 2 ist ein technisch einfacher Weg zur Herstellung der Abflachung gewiesen. Mit Anspruch 3 erreicht man eine günstige Breite der ebenen Fläche.Advantageous developments of the invention are described in the subclaims. Claim 2 shows a technically simple way of producing the flattening. With claim 3 one achieves a favorable width of the flat surface.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der Figurenbeschreibung näher erläutert. Die einzige Figur zeigt in vergrößerter Darstellung einen an einer Welle eines Zündverteilers für Brennkraftmaschinen mittels einer Befestigungsanordnung festgelegten Läufer in teilweise geschnittener Untersicht.An embodiment of the invention is shown in the drawing and explained in more detail in the description of the figures. The single figure shows an enlarged view of a rotor fixed to a shaft of an ignition distributor for internal combustion engines by means of a fastening arrangement in a partially sectioned bottom view.

Beschreibung des AusführungsbeispielesDescription of the embodiment

Von einem Zündverteiler für Brennkraftmaschinen zeigt die einzige Figur dessen Welle 10 mit der Drehachse 11 und dessen Läufer 12 aus Isolierstoff mit einem quer zur Drehachse 11 angeordneten Finger 13 mit einer Elektrode 14. Vom Finger 13 steht einstückig und koaxial zur Drehachse 11 eine Hülse 15 ab, in der eine metallene Buchse 16 eingelegt ist. In dieser ist ein radiales Innengewinde 18 angeord- net, das mit einer Klemmschraube 17 zusammenwirkt. Diese hat einen kegelförmigen Druckteil 19 und ragt durch einen Durchbruch 20 der Hülse 15 hindurch, der radial zur Achse 21 der Klemmschraube 17 ist.The only figure of an ignition distributor for internal combustion engines shows its shaft 10 with the axis of rotation 11 and its rotor 12 made of insulating material with a finger 13 with an electrode 14 arranged transversely to the axis of rotation 11 , in which a metal bushing 16 is inserted. In this a radial internal thread is angeord- 18 n et, which interacts with a clamping screw 17th This has a conical pressure part 19 and projects through an opening 20 of the sleeve 15, which is radial to the axis 21 of the clamping screw 17.

Der Endabschnitt der Welle 10 hat eine kegelförmige, den Druckteil 19 der Klemmschraube 17 aufnehmende Vertiefung 23 und dieser diametral gegenüberliegend als Abflachung eine ebene Fläche 22; diese ist zur Achse 11 der Welle 10 parallel und deren Ausdehnung quer zur Achse 21 ist annähernd 70 Winkelgrade gemäß Doppelpfeil 24. Die Fläche 22 bildet mit dem Mantel 25 des Endabschnittes der Welle 10 Prismen 26, die mit der Innenwandung 27 der Buchse 16 dann Linienberührung 25 haben, wenn - wie dargestellt - die Klemmschraube 17 auf den Endabschnitt der Welle 10 gemäß Pfeil 19 einwirkt.The end section of the shaft 10 has a conical recess 23 which receives the pressure part 19 of the clamping screw 17 and diametrically opposite this as a flat surface 22; this is parallel to the axis 11 of the shaft 10 and its extension transverse to the axis 21 is approximately 70 degrees of angle according to the double arrow 24. The surface 22 forms with the jacket 25 of the end portion of the shaft 10 prisms 26, which then line contact with the inner wall 27 of the socket 16 25 have when - as shown - the clamping screw 17 acts on the end portion of the shaft 10 according to arrow 19.

Anstatt des kegelförmigen Druckteils 19 der Klemmschraube 17 ist ein kegelstumpfförmiger oder balliger oder kalottenförmiger Druckteil möglich.Instead of the conical pressure part 19 of the clamping screw 17, a frustoconical or spherical or dome-shaped pressure part is possible.

Claims (4)

1. Befestigungsanordnung für Läufer an Wellen von Zündverteilern für Brennkraftmaschinen mit einer im Läufer befestigten Buchse aus Metall, die ein bezüglich der Drehachse der Welle radiales Innengewinde aufweist, das mit einer Klemmschraube zusammenwirkt und dabei den in die Buchse eingesteckten Endabschnitt der Welle an die der Klemmschraube gegenüberliegende Innenwandung der Buchse drückt, dadurch gekennzeichnet, daß im gegenüberliegenden Bereich der Klemmschraube (17) der Endabschnitt der Welle (10) derart abgeflacht ist, daß dieser zwei Lininienberührungen (26) (Prismen) an der Innenwandung (27) der Buchse (16) hat.1.Fixing arrangement for rotors on shafts of ignition distributors for internal combustion engines with a metal bushing fastened in the rotor, which has a radial internal thread with respect to the axis of rotation of the shaft, which interacts with a clamping screw and thereby the end section of the shaft inserted into the bushing to that of the clamping screw opposing inner wall of the bushing, characterized in that in the opposite region of the clamping screw (17) the end portion of the shaft (10) is flattened such that it has two line contacts (26) (prisms) on the inner wall (27) of the bushing (16) Has. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Abflachung eine ebene, zur Drehachse (11) der Welle (10) parallele Fläche (22) ist.2. Arrangement according to claim 1, characterized in that the flattening is a flat surface (22) parallel to the axis of rotation (11) of the shaft (10). 3. Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Ausdehnung der ebenen Fläche (22) quer zur Achse (21) der Klemmschraube (17) annähernd 70 Winkelgrade beträgt. v3. Arrangement according to claim 1 or 2, characterized in that the extent of the flat surface (22) transverse to the axis (21) of the clamping screw (17) is approximately 70 degrees. v 4. Anordnung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß der Druckteil (19) der Klemmschraube (17) und die Vertiefung (23) des Endabschnittes der Welle (10) großflächig gestaltet, insbesondere ballig oder kegelförmig sind.4. Arrangement according to one of the preceding claims, characterized in that the pressure part (19) of the clamping screw (17) and the recess (23) of the end portion of the shaft (10) are large-area, in particular spherical or conical.
EP19870104165 1986-04-29 1987-03-20 Arrangement for the cursor on the distribution rotor axle of a combustion engine Expired - Lifetime EP0243665B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8611813U DE8611813U1 (en) 1986-04-29 1986-04-29 Mounting arrangement for rotors on shafts of ignition distributors for internal combustion engines
DE8611813U 1986-04-29

Publications (3)

Publication Number Publication Date
EP0243665A2 true EP0243665A2 (en) 1987-11-04
EP0243665A3 EP0243665A3 (en) 1988-03-23
EP0243665B1 EP0243665B1 (en) 1991-09-18

Family

ID=6794191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870104165 Expired - Lifetime EP0243665B1 (en) 1986-04-29 1987-03-20 Arrangement for the cursor on the distribution rotor axle of a combustion engine

Country Status (4)

Country Link
EP (1) EP0243665B1 (en)
JP (1) JPS62270828A (en)
DE (2) DE8611813U1 (en)
ES (1) ES2026857T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494041A (en) * 2011-12-05 2012-06-13 新杰克缝纫机股份有限公司 Large-torsion transmisson coupler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07708Y2 (en) * 1988-07-25 1995-01-11 東洋電装株式会社 Distributor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3104115A1 (en) * 1981-02-06 1982-09-02 Robert Bosch Gmbh, 7000 Stuttgart Attachment arrangement for rotors of high-voltage distributors
FR2524568A1 (en) * 1982-03-31 1983-10-07 Bosch Gmbh Robert HIGH VOLTAGE DISTRIBUTOR FOR IGNITION INSTALLATIONS OF INTERNAL COMBUSTION ENGINES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102237B2 (en) * 1971-01-19 1974-08-22 Karl 8500 Nuernberg Hertel Turning tool
JPS5637721B2 (en) * 1974-01-10 1981-09-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3104115A1 (en) * 1981-02-06 1982-09-02 Robert Bosch Gmbh, 7000 Stuttgart Attachment arrangement for rotors of high-voltage distributors
FR2524568A1 (en) * 1982-03-31 1983-10-07 Bosch Gmbh Robert HIGH VOLTAGE DISTRIBUTOR FOR IGNITION INSTALLATIONS OF INTERNAL COMBUSTION ENGINES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494041A (en) * 2011-12-05 2012-06-13 新杰克缝纫机股份有限公司 Large-torsion transmisson coupler

Also Published As

Publication number Publication date
JPS62270828A (en) 1987-11-25
ES2026857T3 (en) 1992-05-16
DE3773040D1 (en) 1991-10-24
DE8611813U1 (en) 1987-08-27
EP0243665B1 (en) 1991-09-18
EP0243665A3 (en) 1988-03-23

Similar Documents

Publication Publication Date Title
DE2649357C3 (en) Attachment of a fuel injector received in a bore of the cylinder head of an internal combustion engine
DE2307347A1 (en) MULTI-PIECE PLUNGER FOR FOUR-STROKE COMBUSTION MACHINES, IN PARTICULAR LARGE DIESEL ENGINES
EP0075659B1 (en) Four-cylinder internal-combustion engine
DE69826855T2 (en) DEVICE FOR FASTENING A FUEL INJECTION NOZZLE AT THE CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE
EP0073967A1 (en) Fuel injection pump for internal-combustion engines
EP0243665A2 (en) Arrangement for the cursor on the distribution rotor axle of a combustion engine
EP0166109A2 (en) Multipart piston for an internal-combustion engine
DE1913520A1 (en) Multi-cylinder fuel injection pump for internal combustion engines
DE102007037461A1 (en) Internal combustion engine e.g. skirt engine, has cylinder housing lower part comprising separate bearing cap of crankshaft bearing, which is connected with cylinder crankcase by angular screw connection
DE3246903C2 (en)
DE3419184A1 (en) IGNITION DISTRIBUTION ARRANGEMENT ON INTERNAL COMBUSTION ENGINES
CH383083A (en) crankshaft
EP0648928A1 (en) Internal combustion engine with the crankshaft mounted over bearing caps in a crankcase
EP0255707B1 (en) Arrangement of an auxiliary apparatus by means of a bolt joint of a highly loaded machine part, especially at an internal-combustion engine
EP1584810B1 (en) Crankcase for combustion engine
DE4105541A1 (en) Metal screw nut with hollow cylindrical threaded sleeve - has coaxial clamping sleeve, and locking washer with annular collar
EP0153594A2 (en) Piston for internal combustion engines
EP0777072B1 (en) Piston-rod connection
DE3104115A1 (en) Attachment arrangement for rotors of high-voltage distributors
DE19746948C2 (en) Cylinder block structure for a V-type vehicle internal combustion engine
DE1937419A1 (en) Injection nozzle for injection internal combustion engines
EP0160130B1 (en) Ignition distributor for an internal-combustion engine
DE3620090C2 (en)
DE1937419C (en) Injection nozzle for internal combustion engines
EP1207293B1 (en) Bearing support for an internal combustion engine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR IT

17P Request for examination filed

Effective date: 19880831

17Q First examination report despatched

Effective date: 19900827

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR IT

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3773040

Country of ref document: DE

Date of ref document: 19911024

ITF It: translation for a ep patent filed
RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ROBERT BOSCH GMBH

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2026857

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: DL

ITPR It: changes in ownership of a european patent

Owner name: OFFERTA DI LICENZA AL PUBBLICO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19940310

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940330

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940520

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950321

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19951130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19951201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050320