초록 ▼

A mechanism for forming a closely packed monolayer of flexible line for a tape measure includes a drum 2, a main spring for rotating the drum to wind on the line and a line guide comprising pivoted together members 15 and 16. The line guide is moved axially and radially with respect to the drum 2 by

A mechanism for forming a closely packed monolayer of flexible line for a tape measure includes a drum 2, a main spring for rotating the drum to wind on the line and a line guide comprising pivoted together members 15 and 16. The line guide is moved axially and radially with respect to the drum 2 by the tension in the line 5 acting on the grooved pulleys rotating about pivot points 18 and 19. Tension is maintained in the line adjacent the drum and in the line guide by a brake 8.

대표청구항 ▼

A mechanism for releasably storing a length of flexible line comprising a drum on to which the line can be wound from one end thereof mounted for rotation about an axis on a body, a main spring fixed to the body arranged to rotate the drum in one rotational direction to draw the line on to the drum,

A mechanism for releasably storing a length of flexible line comprising a drum on to which the line can be wound from one end thereof mounted for rotation about an axis on a body, a main spring fixed to the body arranged to rotate the drum in one rotational direction to draw the line on to the drum, a line guide pivotably supported on the body and lying adjacent the surface of the drum so as to be movable in an axial direction parallel to the rotational axis of the drum, and tensioning means arranged to restrain movement of the wire against rotation of the drum caused by action of the main spring so that the line is always under tension in the line guide, the tensioning means being mounted on the body and positioned axially at least opposite the one end of the drum such that the line guide is biased by the tension always towards said one end of the drum to wind the line in a closely packed monolayer on to the drum.