Detent spring for rotatable grip actuating system

A detent spring assembly, comprising:

• a first member;
• a second member movable with respect to said first member to define predetermined locations of said members with respect to each other;
• a detent spring formed of spring metal and cooperating with first and second members;
• a first one of said members having sidewalls delimiting an elongated, spring-retaining notch for retaining said detent spring, said spring-retaining notch having an elongated base, said sidewalls extending toward a second one of said members;
• a surface on said second one of said members having a series of spaced detent notches formed therein;
• an elongated base member of said detent spring having first and second ends, an arm extending from said first end over said elongated base member, said arm having a free end;
• and
• a detent notch engaging portion of said detent spring formed near said free end, whereby said notch engaging portion engages said surface as said second member is moved with respect to said first member, and moves into one of said detent notches when brought into alignment therewith.

A detent spring assembly which defines predetermined locations of first and second members with respect to each other comprising,

• a detent spring,
• said first and second members having respective first and second surfaces facing each other,
• said first surface having sidewalls delimiting an elongated spring-retaining notch for retaining said detent spring, said elongated notch having an elongated base,
• said second surface having a series of spaced detent notches formed therein,
• said spring being formed of spring metal and comprising,
• an elongated base member having first and second ends,
• an arm extending from said first end at an angle so as to extend over said elongated base member, said arm having a free end,
• a notch engaging portion being located near said free end, whereby said notch engaging portion engages said second surface as said second member is moved with respect to said first member, and moves into one of said detent notches when brought into alignment therewith.

In a twist grip having a first member and a second member rotatable with respect to said first member, one of said first and second members having a spring retaining notch and the other of said first and second members having a detent surface defining at least two detent notches, each of said detent notches having an apex, said detent notches having sloping sides,

• a spring formed of an elongated piece of spring metal having a base curved at a first radius, and first and second ends curved in respective first and second curves at second radii which are smaller than the first radius and the centers of which first and second curves are on the opposite side of said base, said first end of said spring having a linear extension tangential to said first curve of said first end and having near the end thereof a third sharp bend at a radius smaller than said first and second radii and the center of which is located on the same side of said spring as the center of said first curve, a free end of the sharp bend having a straight extension which projects toward the convex side of said base, whereby said base is received in said spring-retaining notch with the ends of said spring adaptable to engage respective ends of said spring-retaining notch and said third sharp bend engaging said detent surface and dropping into and rising out of said detent notches as said second member is rotated with respect to said first member.