US3646829A - Vehicle accelerator linkage assembly - Google Patents

Vehicle accelerator linkage assembly Download PDF

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Publication number
US3646829A
US3646829A US42644A US3646829DA US3646829A US 3646829 A US3646829 A US 3646829A US 42644 A US42644 A US 42644A US 3646829D A US3646829D A US 3646829DA US 3646829 A US3646829 A US 3646829A
Authority
US
United States
Prior art keywords
parts
throttle valve
cable
engine
assembly
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
US42644A
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English (en)
Inventor
Frederick Reno
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Application granted granted Critical
Publication of US3646829A publication Critical patent/US3646829A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G05G1/46—Means, e.g. links, for connecting the pedal to the controlled unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K26/00—Arrangement or mounting of propulsion-unit control devices in vehicles
    • B60K26/02—Arrangement or mounting of propulsion-unit control devices in vehicles of initiating means or elements
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/10—Means for transmitting linear movement in a flexible sheathing, e.g. "Bowden-mechanisms"
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20528—Foot operated
    • Y10T74/20534—Accelerator

Definitions

  • ABSTRACT A cable-type vehicle accelerator linkage connects the conventional vehicle accelerator pedal to a carburetor throttle valve, the cable being surrounded by a variable length, expandablecontractible linkage means including a compression spring to urge the linkage pans apart so that the accelerator pedal and throttle valve are always biased in a direction toward engine idle speed position; breakage of the spring providing no interruption to the biasing force but merely multiplying the number of springs operating in series.
  • This invention relates, in general, to an internal combustion engine for a motor vehicle. More particularly, it relates to the accelerator linkage connecting the vehicle accelerator pedal to the engine carburetor throttle valve.
  • accelerator linkage assemblies consisting of a flexible cable between the vehicle accelerator pedal and the carburetor throttle valve. Since the latter operates only in tension, release of the accelerator pedal, or manually pulling up on the accelerator pedal, will not per se return the carburetor throttle valve to a position other than that already attained. Therefore, such a system generally has a tension spring hooked between a stationary portion of the vehicle and some portion of the accelerator cable to positively exert a force that not only will return the carburetor throttle valve to its engine idle speed position, but also move the accelerator pedal to its closed throttle position.
  • tension return spring in such asystem generally is a logical choice; first, because of its ease of installation and location in that it can be connected to any convenient stationary portion of the engine or vehicle with its opposite end hooked over any portion of the accelerator linkage. Secondly, it is easy to change springs if the particular accelerator pedal effort, for example, is too high or too low, simply by removing the hooked portions.
  • the invention is directed to a vehicle accelerator linkage assembly that is essentially fail-safe in operation and eliminates the above disadvantages of the conventional tension spring biasing force described. More particularly, the invention relates to an accelerator linkage assembly that includes a variable length link, or expandable-contractible link, between the carburetor throttle valve and a stationary reaction member, in which a compression spring is installed in such a manner as to always bias the carburetor throttle valve to its engine idle speed position and the vehicle accelerator pedal to a corresponding closed throttle position.
  • FIG. I shows, isometrically, an elevational view of a vehicle accelerator linkage assembly embodying the invention
  • FIG. 2 is a cross-sectional view of a portion of the FIG. 1 showing.
  • FIG. 3 is a cross-sectional view of a detail.
  • FIG. 1 shows the accelerator linkage assembly of the invention including a conventional vehicle accelerator pedal 14 pivotally mounted by a U-shaped yoke member 16 on the lower end 18 of a bellcrank-type lever 20.
  • the pedal includes a return spring 21 that urges the pedal to an upright attitude.
  • Lever 20 is pivotally mounted at its fulcrum point 22 to a mounting bracket 24 that would be fixed by rivets or other suitable means, not shown, to the vehicle firewall, not shown.
  • the upper arm 28 of lever 20 has at its end a pivotal connection 30 to one end of a flexible cable 32 that transmits force in tension only.
  • the opposite end of cable 32 is secured, in a manner to be described more fully later, to the upper end 36 of a conventional carburetor throttle lever 38.
  • the latter is fixedly secured on an extension 40 of the carburetor throttle valve shaft.
  • the throttle shaft in turn is pivotally mounted on a stationary portion of the throttle body, not shown.
  • cable 32 is slidably mounted in a flexible polypropylene sheath or housing 41 that is fixed at opposite ends within attaching steel sleeve mounting brackets 42 and 43.
  • the bracket 42 including a mounting pad 44 having an integral sleeve boss 46.
  • the end of sheath 41 would be crimped within sleeve 46.
  • the pad 44 would be screwed to the engine firewall, not shown.
  • FIG. 3 shows bracket 43 as also including a mounting pad 47 with a sleeve 48 projecting from one side and a flanged sleeve 49 projecting from the other.
  • the flange and pad define a neck portion 50 between a pair of shoulders that fits in the slot 51 of a mounting member 52. The latter would be screwed or otherwise secured to a portion of the engine, such as the valve train cover.
  • the sleeve 48 would be crimped to retain sheath 41 therein.
  • Adapter 53 is crimped or otherwise secured in the end portion of a sleeve 58 having a flanged end 60.
  • a second sleeve 62 encompassing sheath 4! and also having a flange end 64.
  • a compression spring 66 Operably seated between flanges 60 and 64 and surrounding sleeve 62 is a compression spring 66 of a predetermined preload sufficient to bias the tube parts 58 and 62 apart, in the manner shown.
  • Flange 64 of sleeve 62 in this case, is biased against the stationary bracket shoulder 49 to provide reaction for the spring force.
  • Flexible cable 32 passes through the bracket member 43 and through the sleeves 62 and 58 to its attachment at the end portion 53. Cable 32 is thus surrounded coaxially by sleeve portions 58 and 62.
  • spring 66 provides a suitable biasing force to normally maintain sleeves 58 and 62 biased apart to the positions shown in FIGS. 1 and 2, and that depression of the accelerator pedal 14 from its engine idle speed position shown will rock lever 20 in a clockwise direction to place cable 32 in tension and pull the same toward the right in FIG. 2. This will provide a unitary movement of sleeve 58 and cable 32 toward the right causing flange 60 to compress spring 66, with sleeve 62 sliding telescopically into sleeve 58. This will cause a clockwise rotation of throttle lever 38 to open the throttle valve in the desired manner.
  • the invention provides a fail-safe accelerator linkage assembly insofar as the biasing force is concerned.
  • An engine accelerator linkage assembly comprising, a flexible tension transmitting cable operably connected at one end to a foot-operated accelerator pedal means and at its other end to a carburetor throttle valve lever pivotally movable toward and away from an engine idle speed position, a stationary force reaction member supported on a portion of said engine, and expandable-contractible means fixed to said cable and located between said carburetor throttle valve lever and said reaction member and having a plurality of parts, and compression spring means between said parts biasing said parts apart and said throttle valve lever towards an engine idle speed position whereupon movement of said pedal means in a direction to increase engine speed moves said cable in tension to contract said parts by compression of said spring means and to open said throttle valve lever, release of said accelerator pedal means permitting return of said throttle valve lever to an engine idle speed position by expansion of said parts by said compression spring means.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
US42644A 1970-06-02 1970-06-02 Vehicle accelerator linkage assembly Expired - Lifetime US3646829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4264470A 1970-06-02 1970-06-02

Publications (1)

Publication Number Publication Date
US3646829A true US3646829A (en) 1972-03-07

Family

ID=21923017

Family Applications (1)

Application Number Title Priority Date Filing Date
US42644A Expired - Lifetime US3646829A (en) 1970-06-02 1970-06-02 Vehicle accelerator linkage assembly

Country Status (7)

Country Link
US (1) US3646829A (enrdf_load_stackoverflow)
JP (1) JPS5429649B1 (enrdf_load_stackoverflow)
BR (1) BR7102449D0 (enrdf_load_stackoverflow)
CA (1) CA933445A (enrdf_load_stackoverflow)
DE (1) DE2125215A1 (enrdf_load_stackoverflow)
FR (1) FR2095492A5 (enrdf_load_stackoverflow)
GB (1) GB1288012A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134146U (enrdf_load_stackoverflow) * 1975-04-21 1976-10-29
US4041797A (en) * 1975-09-05 1977-08-16 Kabushiki Kaisha Keihinseiki Seisakusho Throttle-valve operating device for a carburetor
US4779480A (en) * 1986-07-02 1988-10-25 Ford Motor Company Multi ratio accelerator cable mechanism
US5570613A (en) * 1994-12-08 1996-11-05 Spradlin; Gregory A. Accelerator pedal mechanical governor
EP1099801A1 (en) * 1999-11-09 2001-05-16 NEW HOLLAND ITALIA S.p.A. Actuating device
WO2008147338A1 (en) * 2007-05-28 2008-12-04 Temsa Sanayi Ve Ticaret A.S. Hinged pedal mechanism in the vehicles
US11118380B2 (en) * 2014-12-27 2021-09-14 Inteva Products, Llc Linkage system for vehicle door latch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914265Y2 (ja) * 1979-03-08 1984-04-26 日産自動車株式会社 チルト式ペダル装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR798513A (fr) * 1935-02-18 1936-05-19 Accessoire Precision Perfectionnements apportés aux transmissions à distance commandées par pédale, notamment à celle pour la commande de l'accélérateur des moteurs d'automobiles
GB963979A (en) * 1960-03-02 1964-07-15 Leslie Roy Busby Improvements relating to flexible actuating mechanisms

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB371853A (en) * 1931-01-20 1932-04-20 Italo Farfallini Improvements in liquid level indicators for reservoirs
FR819398A (fr) * 1937-03-19 1937-10-15 Fixator O Guillemin & Cie Ets Perfectionnements aux commandes souples

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR798513A (fr) * 1935-02-18 1936-05-19 Accessoire Precision Perfectionnements apportés aux transmissions à distance commandées par pédale, notamment à celle pour la commande de l'accélérateur des moteurs d'automobiles
GB963979A (en) * 1960-03-02 1964-07-15 Leslie Roy Busby Improvements relating to flexible actuating mechanisms

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134146U (enrdf_load_stackoverflow) * 1975-04-21 1976-10-29
US4041797A (en) * 1975-09-05 1977-08-16 Kabushiki Kaisha Keihinseiki Seisakusho Throttle-valve operating device for a carburetor
US4779480A (en) * 1986-07-02 1988-10-25 Ford Motor Company Multi ratio accelerator cable mechanism
US5570613A (en) * 1994-12-08 1996-11-05 Spradlin; Gregory A. Accelerator pedal mechanical governor
EP1099801A1 (en) * 1999-11-09 2001-05-16 NEW HOLLAND ITALIA S.p.A. Actuating device
WO2008147338A1 (en) * 2007-05-28 2008-12-04 Temsa Sanayi Ve Ticaret A.S. Hinged pedal mechanism in the vehicles
US11118380B2 (en) * 2014-12-27 2021-09-14 Inteva Products, Llc Linkage system for vehicle door latch

Also Published As

Publication number Publication date
BR7102449D0 (pt) 1973-05-24
GB1288012A (enrdf_load_stackoverflow) 1972-09-06
FR2095492A5 (enrdf_load_stackoverflow) 1972-02-11
CA933445A (en) 1973-09-11
JPS5429649B1 (enrdf_load_stackoverflow) 1979-09-25
DE2125215A1 (de) 1971-12-09

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