US3725620A - Distributor plate structure and fixedly mounting attachment mean to distributor housing - Google Patents

Distributor plate structure and fixedly mounting attachment mean to distributor housing Download PDF

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Publication number
US3725620A
US3725620A US00195751A US3725620DA US3725620A US 3725620 A US3725620 A US 3725620A US 00195751 A US00195751 A US 00195751A US 3725620D A US3725620D A US 3725620DA US 3725620 A US3725620 A US 3725620A
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US
United States
Prior art keywords
distributor
housing
projections
transverse wall
open side
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
Application number
US00195751A
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English (en)
Inventor
K Schneider
D Herker
H Madgefrau
A Plockl
E Horrwarth
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.)
Robert Bosch GmbH
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
Application granted granted Critical
Publication of US3725620A publication Critical patent/US3725620A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle

Definitions

  • the present invention relates generally to ignition distributors for internal combustion engines and more particularly to an arrangement for centering and supporting a breaker assembly support plate in the distributor housing.
  • Another object of the invention is to provide an improved arrangement for centering and supporting the breaker assembly support plate in the distributor housmg.
  • a further object of the invention is to provide a method for centering and securing the breaker assembly support plate in the distributor housing.
  • a distributor comprising a housing which includes a cupped portion having an open side, a circumferential wall and an inner face.
  • a breaker assembly is located within the housing and is carried by a breaker assembly support plate or transverse wall having a'lower side and a peripheral margin provided with an edge face which is in close proximity to the inner face of the circumferential wall of the distributor housing.
  • the latter is provided with a plurality of upset portions projecting into the housing beyond the inner face for holding the transverse wall in a predeterminated position.
  • a first part of the upset portions engage the lower side of the transverse wall and support the same within the distributor housing.
  • a second part of the upset portions engage the edge face of the transverse wall in order to center and frictionally retain the transverse wall in the distributor housing.
  • a method of making the novel distributor may include the following steps.
  • a matrix is inserted into the interior of the cupped portion of the distributor housing and a plurality of rams is positioned adjacent to the exterior wall of the housing.
  • the cupped portion of the housing is centered with respect to the rams and matrix by means of a hollow shaft portion which is formed on the cupped portion.
  • the rams are moved radially inward against the exterior wall of the housing toward the matrix. This causes the formation of centering and support projections on the circumferential wall which project from the inner side thereof.
  • the transverse wall may then be inserted into the housing with the second upset portions serving to center the transverse wall and the first upset portions providing seating surfaces for supporting the same in the housing.
  • FIG. 1 is a partly sectioned elevation of a distributor embodying the invention, with parts omitted for the sake of clarity;
  • FIG. 2 is a fragmentary sectional detail view of the distributor shown in FIG. 1 together with the position of tools used in forming it;
  • FIG. 3 is a fragmentary horizontal detail view of the distributor shown in FIG. 1.
  • an ignition distributor comprising a housing 10 which may be of aluminum and which is provided with a cupped portion 10a having an open side, a circumferential wall 18 and an inner face and a hollow shaft portion 10b provided with two sleeve bearings 12, 13 for a distributor shaft which is not shown.
  • a breaker assembly support plate or transverse wall 14 carrying the breaker plate 15 and a breaker arm 16, which form part of the interrupter mechanism, is located within the cupped portion 10a.
  • the breaker arm 16 contacts a cam mounted on the distributor shaft which is not shown.
  • the breaker plate 15 is connected to a vacuum advance mechanism (not shown) which turns the breaker plate 15 relative to the transverse wall 14 in order to advance or retard the ignition turning.
  • a vacuum advance mechanism (not shown) which turns the breaker plate 15 relative to the transverse wall 14 in order to advance or retard the ignition turning.
  • a plurality of upset portions 17, 19 project from the inner face of the circumferential wall 18.
  • the first upset portion 19 of each pair includes a tapering shoulder 19a which tapers outwardly and in direction away from the open side of the cupped portion 10a and a seating surface 19b which engages the lower side of the transverse wall 14 and supports it in the cupped portion 10a.
  • the second upset which tapers outwardly and in direction toward the open side of the cupped portion 100 and a facet 17b (see FIG.
  • the marginal portion of the transverse wall is provided with two upwardly bent lugs 22 of which one is shown in FIG. 1.
  • Each lug 22 is provided with a threaded hold 21 into which a screw is inserted which extends through the wall 18 and also serves to fasten a support bracket 24 to the outside surface of the wall 18.
  • a cap clamp spring 25 is attached to each support bracket 24 which is used to secure the distributor cap (not shown) to the I open side of the cupped portion 10a.
  • a method of making the novel features of our invention includes the following steps.
  • a female die or matrix 26 is inserted into the cupped portion 10a and several, for instance four, male dies or rams 23 of which one is shown in FIG. 2 are positioned adjacent to the exterior wall 18.
  • the cupped portion 10a is centered with respect to the rams 23 and matrix 26 by means of the hollow shaft portion 10b.
  • An advantageous way of doing this is to first insert the two bearing sleeves l2, 13 into the hollow shaft portion 10b.
  • the bearing sleeves may then be used to perform the centering function by cooperation with an appropriate mandrel.
  • the rams 23 are moved radially inward against the exterior circumferential wall 18 toward the matrix 26.
  • the ram surface 23 a acting in conjunction with a cooperating surface of the matrix 26, produces a pair of portions, a first portion 19 which includes a shoulder 19a and a seating surface 1% and a second portion 17 which includes a shoulder 17a and a radially inwardly directed facet 17b.
  • the transverse wall 14 is not located in the cupped portion 10a because this would preclude the removal of the matrix from the cupped portion.
  • the invention is not limited to the embodiment shown but includes all solutions to the problem of centering a breaker support plate within a distributor housing by projections formed on the inner side of the housing wall as a result of depressions impressed into the wall at the exterior thereof.
  • a distributor in combination, a housing having a circumferential wall provided with an inner and outer face; a breaker assembly located in the interior of said housing; a transverse wall extending across said interior and carrying said breaker assembly, said transverse wall having a lower side and a peripheral margin provided with an edge face proximal to said inner face; and a plurality of depressions in said outer face each having a corresponding projection extending from said inner face for engaging and holding said transverse wall in predetermined position.
  • said plurality of projections comprises first and second projections projecting from said inner face and respectively engaging said lower side and said edge face for supporting and centering said transverse wall.
  • each of said second projections is provided with a facet which abuts said edge face.
  • each of said first projections is provided with a seating surface which engages said lower side.
  • each of said first projections is located beneath one of said second projections.

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)
US00195751A 1970-11-07 1971-11-04 Distributor plate structure and fixedly mounting attachment mean to distributor housing Expired - Lifetime US3725620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2054930A DE2054930C3 (de) 1970-11-07 1970-11-07 Lagerung einer in das Gehäuse, eines Zündverteilers für Brennkraftmaschinen eingesetzten Tragplatte eines Unterbrechers und Verfahren zur Herstellung dieser Lagerung

Publications (1)

Publication Number Publication Date
US3725620A true US3725620A (en) 1973-04-03

Family

ID=5787502

Family Applications (1)

Application Number Title Priority Date Filing Date
US00195751A Expired - Lifetime US3725620A (en) 1970-11-07 1971-11-04 Distributor plate structure and fixedly mounting attachment mean to distributor housing

Country Status (7)

Country Link
US (1) US3725620A (cg-RX-API-DMAC7.html)
JP (1) JPS5610468B1 (cg-RX-API-DMAC7.html)
AU (1) AU446506B2 (cg-RX-API-DMAC7.html)
DE (1) DE2054930C3 (cg-RX-API-DMAC7.html)
FR (1) FR2113005A5 (cg-RX-API-DMAC7.html)
GB (1) GB1365326A (cg-RX-API-DMAC7.html)
IT (1) IT940764B (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6770825B1 (en) * 2003-04-15 2004-08-03 Standard Motor Products, Inc. Reinforced connection between a distributor and a distributor cap

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2541164C2 (de) * 1975-09-16 1983-11-10 Robert Bosch Gmbh, 7000 Stuttgart Verstelleinrichtung für Zündverteiler von Brennkraftmaschinen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2115462A (en) * 1935-06-03 1938-04-26 Gen Motors Corp Ignition device
US2371570A (en) * 1944-02-28 1945-03-13 Thexton Mfg Company Apparatus for reconditioning ball races on automotive distributors and the like
US2444149A (en) * 1946-01-18 1948-06-29 Seth E Aldridge Ignition timer
US2788401A (en) * 1953-08-26 1957-04-09 Gen Motors Corp Ignition timer
US2889418A (en) * 1957-06-10 1959-06-02 Gen Motors Corp Ignition distributor
US2929888A (en) * 1957-05-11 1960-03-22 Robert Bosch G M B H Fa Mounting plate for ignition distributors and housing therefor
US3479472A (en) * 1966-09-09 1969-11-18 Lucas Industries Ltd Ignition distributors utilizing a spring clip means

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS44829Y1 (cg-RX-API-DMAC7.html) * 1965-10-20 1969-01-14

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2115462A (en) * 1935-06-03 1938-04-26 Gen Motors Corp Ignition device
US2371570A (en) * 1944-02-28 1945-03-13 Thexton Mfg Company Apparatus for reconditioning ball races on automotive distributors and the like
US2444149A (en) * 1946-01-18 1948-06-29 Seth E Aldridge Ignition timer
US2788401A (en) * 1953-08-26 1957-04-09 Gen Motors Corp Ignition timer
US2929888A (en) * 1957-05-11 1960-03-22 Robert Bosch G M B H Fa Mounting plate for ignition distributors and housing therefor
US2889418A (en) * 1957-06-10 1959-06-02 Gen Motors Corp Ignition distributor
US3479472A (en) * 1966-09-09 1969-11-18 Lucas Industries Ltd Ignition distributors utilizing a spring clip means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6770825B1 (en) * 2003-04-15 2004-08-03 Standard Motor Products, Inc. Reinforced connection between a distributor and a distributor cap

Also Published As

Publication number Publication date
DE2054930A1 (de) 1972-05-18
DE2054930B2 (de) 1975-01-09
JPS5610468B1 (cg-RX-API-DMAC7.html) 1981-03-07
FR2113005A5 (cg-RX-API-DMAC7.html) 1972-06-23
AU446506B2 (en) 1974-03-21
DE2054930C3 (de) 1975-08-28
AU3539771A (en) 1973-05-10
IT940764B (it) 1973-02-20
GB1365326A (en) 1974-08-29

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