Dial gauge
First Claim
Patent Images
1. A dial gauge comprising:
- a case body;
a spindle provided at the forward end thereof with a measuring element and axially displaceable secured to said case body;
a rotatable cam having a circumferentially varying radius surface engaged by a portion of said spindle, the displacement direction of said spindle portion being approximately toward and away from the rotation axis of said cam;
low friction means interposed between said cam and spindle portion for rotation of the cam by an axial displacement of said spindle in said case body not past the rotation axis of said cam; and
an indicating mechanism for indicating an axial displacement value of said spindle by a rotation of said cam.
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Accused Products
Abstract
A dial gauge wherein a cam (14) engaged with a spindle (16) and rotatable in accordance with an axial displacement value of the spindle (16) is provided and an indicating mechanism (13, 113) is driven by a rotation of the cam (14) to indicate a measured value. This dial gauge is simplified in construction and easy in assembling without requiring to use high precision-finish parts such as a rack portion, pinion and the like.
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Citations
13 Claims
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1. A dial gauge comprising:
- a case body;
a spindle provided at the forward end thereof with a measuring element and axially displaceable secured to said case body;
a rotatable cam having a circumferentially varying radius surface engaged by a portion of said spindle, the displacement direction of said spindle portion being approximately toward and away from the rotation axis of said cam;
low friction means interposed between said cam and spindle portion for rotation of the cam by an axial displacement of said spindle in said case body not past the rotation axis of said cam; and
an indicating mechanism for indicating an axial displacement value of said spindle by a rotation of said cam.
- a case body;
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2. A dial gauge comprising:
- a case body;
a spindle provided at the forward end thereof with a measuring element and axially displaceably secured to said case body;
a cam engaged with said spindle and rotatable by an axial displacement of said spindle in said case body;
an indicating mechanism for indicating an axial displacement value of said spindle by a rotation of said cam; anda roller secured to one end of said spindle, said spindle being abutted against and engaged with said cam through said roller. - View Dependent Claims (3, 4, 5)
- a case body;
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6. A dial gauge comprising:
- a case body;
a spindle provided at one end thereof in said case body with a roller and at the forward end thereof outside said case body with a measuring element, said spindle being axially displaceably secured to said case body;
a cam engaged at the peripheral surface thereof with said roller and rotatable by an axial displacement of said spindle; and
an indicating mechanism for indicating an axial displacement of said spindle by a rotation of said cam. - View Dependent Claims (7, 8, 9, 10)
- a case body;
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11. A dial gauge comprising:
- a case body including a container and a cover which are relatively rotatably coupled to each other;
a spindle axially displaceably secured to said container, and provided at one end thereof in said container with a roller and at the other end thereof outside said case body with a measuring element;
a cam rotatably supported in said container, engaged at the peripheral surface thereof with said roller and rotatable by an axial displacement of said spindle; and
an indicating mechanism for indicating an axial displacement value of said spindle by a rotation of said cam. - View Dependent Claims (12, 13)
- a case body including a container and a cover which are relatively rotatably coupled to each other;
Specification