WO2009082625A1 - Dual pedal foot control for hydrostatic drives - Google Patents

Dual pedal foot control for hydrostatic drives Download PDF

Info

Publication number
WO2009082625A1
WO2009082625A1 PCT/US2008/086318 US2008086318W WO2009082625A1 WO 2009082625 A1 WO2009082625 A1 WO 2009082625A1 US 2008086318 W US2008086318 W US 2008086318W WO 2009082625 A1 WO2009082625 A1 WO 2009082625A1
Authority
WO
WIPO (PCT)
Prior art keywords
pedal
pedals
axle
foot control
hydrostatic drives
Prior art date
Application number
PCT/US2008/086318
Other languages
French (fr)
Inventor
Mark M. Kiviahde
James C. Schroeder
Harold D. Johnson
Original Assignee
Graco Minnesota Inc.
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 Graco Minnesota Inc. filed Critical Graco Minnesota Inc.
Priority to CN2008801211360A priority Critical patent/CN101903201A/en
Priority to EP08863907A priority patent/EP2237983A4/en
Priority to US12/808,767 priority patent/US8225902B2/en
Publication of WO2009082625A1 publication Critical patent/WO2009082625A1/en

Links

Classifications

    • 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—Arrangements or mounting of propulsion unit control devices in vehicles
    • B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
    • 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
    • G05G1/40—Controlling members actuated by foot adjustable
    • G05G1/405—Controlling members actuated by foot adjustable infinitely adjustable
    • 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
    • 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
    • Y10T74/20576—Elements
    • Y10T74/20888—Pedals
    • Y10T74/20894—Treadles

Definitions

  • the propulsion unit is designed for attachment via a ball hitch to the rear of a walk-behind linestriper.
  • the actuating lever for the hydrostatic drive typically provides drive in one direction when the lever is rotated one way and in the other direction when lever rotation is reversed.
  • a rod is attached to the actuating lever.
  • An axle is rotatable relative to the frame of the vehicle and is generally perpendicular to the longitudinal axis of the vehicle.
  • a pair of pedals are clamped to the axle in such a manner as to be comfortably positioned for the feet of the operator.
  • the angular position of each pedal relative to the axle may be adjusted such that the two pedals may have different angular orientations if desired.
  • One pedal may be comfortably positioned for directing forward motion of the vehicle while the other may be more comfortable for reverse motion.
  • the clamping mechanism is designed so that the set screw or bolt used to secure the pedal faces upwardly and is accessed through a hole in the pedal it adjust rather that having to lay on the ground to access the adjustment bolt from underneath as in the prior art device.
  • FIG. 1 shows the instant invention.
  • a frame 10 has an axle 12 rotatably mounted perpendicular to the longitudinal axis of frame 10.
  • a pair of pedals 14 are located on either side of frame 10 and are releasably clamped to axle 12 by set screws 16. Set screws 16 are accessed through holes 14a in pedals 14 from above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Control Devices (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

In a propulsion unit having a hydrostatic drive, a pair of pedals 14 are clamped to the axle 12 in such a manner as to be comfortably positioned for the feet of the operator. The angular position of each pedal 14 relative to the axle 12 may be adjusted such that the two pedals 14 may have different angular orientations if desired. One pedal 14 may be comfortably positioned for directing forward motion of the vehicle while the other may be more comfortable for reverse motion. Set screws 16 are accessed through holes 14a in pedals 14 from above.

Description

DUAL PEDAL FOOT CONTROL FOR HYDROSTATIC DRIVE
RELATED APPLICATIONS
This application claims the benefit of US Application serial number 60/016,628, filed December 26, 2007, the contents of which are hereby incorporated by reference.
BACKGROUND OF THE INVENTION
Lawn tractors and similar vehicles have used hydrostatic drives for many years. Often, the drives are actuated by a rocker pedal with heel and toe action such that depressing the toe portion of the pedal produces forward motion of the vehicle and pressing the hell of the pedal produces rearward or reverse motion. An effective arrangement is shown in US Patent no. 6,883,633, the contents of which are hereby incorporated by reference.
SUMMARY OF THE INVENTION
It is an object of this invention to provide a control mechanism for such hydrostatic drives which is more flexible for the operator and which allows maximum efficiency during operation, particularly where rapid changes of direction are required such as when used on a vehicle propelling a linestriper. The propulsion unit is designed for attachment via a ball hitch to the rear of a walk-behind linestriper.
The actuating lever for the hydrostatic drive typically provides drive in one direction when the lever is rotated one way and in the other direction when lever rotation is reversed. In the instant invention, a rod is attached to the actuating lever. An axle is rotatable relative to the frame of the vehicle and is generally perpendicular to the longitudinal axis of the vehicle.
A pair of pedals are clamped to the axle in such a manner as to be comfortably positioned for the feet of the operator. The angular position of each pedal relative to the axle may be adjusted such that the two pedals may have different angular orientations if desired. One pedal may be comfortably positioned for directing forward motion of the vehicle while the other may be more comfortable for reverse motion. The clamping mechanism is designed so that the set screw or bolt used to secure the pedal faces upwardly and is accessed through a hole in the pedal it adjust rather that having to lay on the ground to access the adjustment bolt from underneath as in the prior art device.
Such an arrangement divides the fatigue normally experienced by one foot between both feet. One foot can rest while the other controls motion.
These and other objects and advantages of the invention will appear more fully from the following description made in conjunction with the accompanying drawings wherein like reference characters refer to the same or similar parts throughout the several views. A BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows the instant invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The instant invention is shown in Figure 1. A frame 10 has an axle 12 rotatably mounted perpendicular to the longitudinal axis of frame 10. A pair of pedals 14 are located on either side of frame 10 and are releasably clamped to axle 12 by set screws 16. Set screws 16 are accessed through holes 14a in pedals 14 from above.
It is contemplated that various changes and modifications may be made to the foot control assembly without departing from the spirit and scope of the invention as defined by the following claims.

Claims

WHAT IS CLAIMED IS:
1. In a propulsion unit having a hydrostatic drive on a frame having a longitudinal axis, an actuating rod operating said drive and a pair of pedals independently clamped to an axle in such a manner as to be comfortably positioned for the feet of the operator, the improvement comprising an aperture in each pedal, each said aperture being located to allow access to said clamp from above.
PCT/US2008/086318 2007-12-26 2008-12-11 Dual pedal foot control for hydrostatic drives WO2009082625A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2008801211360A CN101903201A (en) 2007-12-26 2008-12-11 Dual pedal foot control for hydrostatic drives
EP08863907A EP2237983A4 (en) 2007-12-26 2008-12-11 Dual pedal foot control for hydrostatic drives
US12/808,767 US8225902B2 (en) 2007-12-26 2008-12-11 Dual pedal foot control for hydrostatic drives

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1662807P 2007-12-26 2007-12-26
US61/016,628 2007-12-26

Publications (1)

Publication Number Publication Date
WO2009082625A1 true WO2009082625A1 (en) 2009-07-02

Family

ID=40801542

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/086318 WO2009082625A1 (en) 2007-12-26 2008-12-11 Dual pedal foot control for hydrostatic drives

Country Status (4)

Country Link
US (1) US8225902B2 (en)
EP (1) EP2237983A4 (en)
CN (1) CN101903201A (en)
WO (1) WO2009082625A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8469138B1 (en) * 2012-03-28 2013-06-25 Deere & Company Pedal control system for a vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207289A (en) * 1992-07-02 1993-05-04 Tennant Ompany Foot pedal with angular adjustment
US6883633B2 (en) * 2001-10-19 2005-04-26 Graco Minnesota Inc. Dual pedal foot control for hydrostatic drive

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US243020A (en) * 1881-06-14 weaver
US1481A (en) * 1840-01-28 Mode of bushing mills and keeping the same close to the spindle
US372281A (en) * 1887-10-25 whitney
US1168218A (en) * 1912-08-01 1916-01-11 Willcox & Gibbs Sewing Machine Treadle.
US1981148A (en) * 1934-07-23 1934-11-20 Herbert E Muench Heel plate
US4174852A (en) * 1978-06-28 1979-11-20 Cruze Tyrone A Foot rest assembly for motorcycle
US4470321A (en) * 1980-11-28 1984-09-11 Girty Kenneth E Motorcycle gear shift control device
US4779481A (en) * 1987-04-16 1988-10-25 J. I. Case Company Adjustable two-pedal swing control apparatus
US5393082A (en) * 1994-03-04 1995-02-28 Fenley; John M. Adjustable-tilt footrests for wheelchairs
US5738180A (en) * 1995-07-21 1998-04-14 Harley-Davidson Motor Company Footboard assembly
US6217050B1 (en) * 1998-11-13 2001-04-17 Sunrise Medical Hhg Inc. Adjustable footrest
US6390488B1 (en) * 2000-03-06 2002-05-21 Brent Wallingsford Impact and shock absorbing motorcycle foot peg
US6318786B1 (en) * 2000-10-27 2001-11-20 Daimlerchrysler Corporation Adjustable dead pedal for a motor vehicle
JP3922519B2 (en) * 2001-01-19 2007-05-30 スズキ株式会社 Footrest structure for vehicles
US7111375B2 (en) * 2003-04-10 2006-09-26 Harley-Davidson Motor Company Group, Inc. Footpeg for a motorcycle
US7425010B2 (en) * 2004-10-18 2008-09-16 Pride Mobility Products Corporation Mount for a wheelchair footrest
US7464783B2 (en) * 2005-08-16 2008-12-16 Gm Global Technology Operations, Inc. Sealing access plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207289A (en) * 1992-07-02 1993-05-04 Tennant Ompany Foot pedal with angular adjustment
US6883633B2 (en) * 2001-10-19 2005-04-26 Graco Minnesota Inc. Dual pedal foot control for hydrostatic drive

Also Published As

Publication number Publication date
EP2237983A1 (en) 2010-10-13
EP2237983A4 (en) 2012-04-18
US8225902B2 (en) 2012-07-24
US20110192252A1 (en) 2011-08-11
CN101903201A (en) 2010-12-01

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