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Remote shift

  • US 3,991,845 A
  • Filed: 12/22/1975
  • Issued: 11/16/1976
  • Est. Priority Date: 10/15/1974
  • Status: Expired due to Term
First Claim
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1. Remote shift for use in a vehicle having an engine and a transmission, comprisinga. a housing having a fixed portion and a movable portion, the fixed portion being provided with a large bore in which is rotatably carried a cylindrical element of the movable portion and a smaller bore extending coaxial of and extending from the bottom of the large bore,b. a shift handle pivotally mounted about a first axis on the movable portion of the housing,c. a plurality of hydraulic motors located at the transmission,d. a pressure hydraulic line connecting each motor to the housing,e. a return hydraulic line connecting all of the motors to the housing,the movable portion of the housing being mounted on the fixed portion of the housing for rotation about a second axis extending at a right angle to the axis of pivotal rotation of the handle, the rotation of the handle about the first axis and the rotation of the handle and the movable portion of the housing causing pressure to appear in the pressure hydraulic lines to operate the hydraulic motors,f. a plate extending across the bottom of the large bore in the fixed portion of the housing, the radial end surface of the cylindrical element of the movable portion sliding over the surface of the plate as the movable element rotates about the said second axis, andg. a check valve mounted in the said cylindrical element, the plate having an indentation located to be engaged by the check valve for the operation of the valve at the center of rotation of the movable element, the indentation serving as a signal felt through the shift lever to assist in determining the neutral position.

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