Measuring instrument

Details Measuring instrument Measuring instrument

1998-06-01

2000-09-19

Hirshfeld, Andrew H.

Geometrical instruments

Distance measuring

Single contact with a work engaging support

33556, 33559, 33613, 33706, G01B 322

Patent

active

061193593

ABSTRACT:
An electrical base 32 having a stationary detection element 31 is fixed to a body case 11 movably supporting a spindle 13, and a synthetic resin made scale holder 34 is provided to synchronize with the spindle 13 and move through a guide 33. In addition, a scale 36 having a movable detection element 35 is adherently fixed to the scale holder 34 at a plurality of points. More specifically, a projection 51 is fixed through an adhesive layer 52 to the back face of the scale 36, and held in a accommodating hole 46 formed in the scale holder 34, and then adhered through an adhesive layer 53 in the circumferential direction. As a result, the reduction in weight can be achieved and a disadvantage with the reduction in weight (which is that a gap between a stationary detection element and a movable detection element is changed) can be resolved.

REFERENCES:
patent: Re35263 (1996-06-01), Silva et al.
patent: 4288925 (1981-09-01), McMurtry
patent: 4495701 (1985-01-01), Nakadoi
patent: 4566201 (1986-01-01), Ishii
patent: 4765064 (1988-08-01), Maeda
patent: 5172485 (1992-12-01), Gerhard
patent: 5570551 (1996-11-01), Koc, Sr. et al.
patent: 5658086 (1997-08-01), Brokaw et al.

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