US 4,060,157 AGranted

Control mechanism

AssigneeInternational Harvester Company

InventorThomas P. Hillstrom

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Abstract

A vehicle control mechanism for manipulating three controllable members through one control handle. The control mechanism includes a support rigidly attached to the vehicle. The support rotatably carries three control assemblies which are operably connected to one of each of the three controllable members. The control mechanism also includes a drive assembly rotatably carried by the first and third control assemblies first, second and third control assemblies and the support have force selectively transmitted therebetween by a roller which is contained in the control assembly by roller retainers of the support. The force which manipulates the controllable members is derived from the operator selectively pivoting the handle about the third control assembly. To manipulate the various control assemblies the operator will either pivot the handle to engage the handle and the dive assembly or pivot the handle to engage the handle and the second control assembly. The controlling force is supplied to the respective control members by the operators rotation of the handle about its rotational connection to the third control assembly; after the handle has been selectively pivoted about its pivot point. The final features of the control mechanism are a centering spring which urges the handle into a normal position about its pivot point, which normal position cooperates with a regulator that produces selective engagement of the individual controllable members by sequential pivoting and rotation of the handle.

Claims20

Dependent claims

A control mechanism for a vehicle, including:

a support rigidly attached to said vehicle, having a cam aperture with a first and second distinct elements and a transition portion therebetween, a roller retainer and a shaft aperture;
a first control assembly rotatably carried by said support in said shaft aperture, having a tubular section through said shaft aperture and a cam slot corresponding positionally to said transition and first cam aperture elements;
a first controllable member operably connected to and movable through a control range by rotation of said first control assembly;
a second control assembly rotatably carried by said first control assembly in said tubular section, having a conduit section through said tubular section and a tooth notch;
a second controllable member operably connected to and movable through a control range by rotation of said second control assembly;
a third control assembly rotatably carried by said second control assembly in said conduit section, having a shaft section through said conduit section and a cam groove corresponding positionally to said transition portion and second element;
a third controllable member operably connected to and movable through a control range by rotatation of said third control assembly;
a drive assembly rotatably carried by said tubular section and said shaft section, having a roller slot and a handle notch;
a roller constrained by said roller retainer and positioned within said transition cam element, said cam slot, said cam groove, and said roller slot;
a handle rotatably and pivotally carried by said shaft section having a rod selectively engageable with said handle notch and an extension selectively engageable with said tooth notch upon pivotal movement of said handle;
means pivotally and resiliently attached to said handle and journalled to said shaft section for mounting said handle, said means including a centering spring urging said handle to a normal position about said pivotal connection;
means for regulating movement of said handle by selective engagement of said tooth notch or said handle notch when said handle is in its normal position about said pivotal connection and operative, when said handle extension engages said tooth notch, to produce rotation of said second control assembly, and operative, when said handle rod engages said handle notch, to produce selective rotation of said first and third control assemblies by interaction of said roller in said cam aperture, said cam roller slot, said cam groove, and said cam slot.

9 more elements

A control mechanism for a vehicle having a range transmission incorporating a range lever selectively establishing the high and low speed range, a reverse lever selectively establishing the engagement and disengagement of reverse gear and a park lever selectively establishing engagement and disengagement of the park gear lock, said mechanism including, in combination:

a transition portion therebetween, a roller retainer and a shaft aperture;
a first control assembly rotatably carried by said support in said shaft aperture, having a tubular section through said shaft aperture and a cam slot corresponding positionally to said transition and first cam aperture elements;
first means for operably connecting said first control assembly and said reverse lever;
a second control assembly rotatably carried by said first control assembly in said tubular section, having a conduit section through said tubular section and a tooth notch;
second means for operably connecting said second control assembly and said range lever;
a third control assembly rotatably carried by said second control assembly in said conduit section, having a shaft section through said conduit section and a cam groove corresponding positionally to said transition portion and second element;
a third means for operably connecting said third control assembly and said park lever;
a drive assembly rotatably carried by said tubular section and said shaft section, having a roller slot and a handle notch;
a roller constrained by said roller retainer and positioned within said transition cam element, said cam slot, said cam groove, and said roller slot;
a handle rotatably and pivotally carried by said shaft section having a rod selectively engageable with said handle notch and an extension selectively engageable with said tooth notch upon pivotal movement of said handle;
means pivotally and resiliently attached to said handle and journalled to said shaft section for mounting said handle, said means including a centering spring urging said handle to a normal position about said pivotal connection;
means for regulating movement of said handle by selective engagement of said tooth notch or said handle notch when said handle is in its normal position about said pivotal connection and operative, when said handle extension engages said tooth notch, to produce rotation of said second control assembly, and operative, when said handle rod engages said handle notch, to produce selective rotation of said first and third control assemblies of interaction of said roller in said cam aperture, said cam roller slot, said cam groove, and said cam slot.

9 more elements

Dependencies are inferred from the claim text.