Swing amount magnifying mechanism
AssigneeMitutoyo Corporation
InventorMunenori Ishii
Life of this patent
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Abstract
A swing amount magnifying mechanism is disclosed, which converts a swing angle S of a first arm 41 pivotally mounted on a first shaft 5 is converted by an adjacent second arm 26 into a swing angle .theta.. A movable surface 141A which transmits swinging of the first arm 41 to a transmitting pin 28A of the second arm 26 is inclined with respect to a neutral line M. Magnification factor K (.theta./S) thus can be stabilized over a side range of the angle .theta. without being affected by displacement of the transmitting pin 28A in the direction of a neutral line M. Highly accurate swing amount conversion is thus obtainable with a fixed magnification factor without substantial component alteration.
Claims12
A swing amount magnifying mechanism comprising a first shaft and a second shaft, these shafts having the axes thereof extending in the same direction, a first arm pivotally mounted on the first shaft, and a second arm pivotally mounted on the second shaft and disposed adjacent to the first arm,
- the first or second arm having a movable surface to be disposed with swinging of that arm,
- the other arm than that with the movable surface having a transmitting pin in contact with the movable surface for transmitting swinging of the arm with the movable surface to the other arm,
- swinging of the first arm causing rotation of the second arm via the transmitting pin,
- a swing angle of the first arm being magnification converted to be transmitted to the second arm,
- wherein in an initial state the movable surface is inclined with respect to a neutral line connecting the first and second shafts and gradually further apart from the neutral line as one goes from the first shaft to the second shaft.
A swing amount magnifying mechanism comprising a first shaft and a second shaft, these shafts having the axes thereof extending in the same direction, a first arm pivotally mounted on the first shaft, and a second arm pivotally mounted on the second portion and disposed adjacent to the first arm,
- the first or second arm having a movable surface to be displaced with switching of that arm,
- the other arm than that with the movable surface having a transmitting pin in contact with the movable surface for transmitting switching of the arm with the movable surface to the other arm,
- swinging of the first arm causing rotation of the second arm via the transmitting pin,
- a swing angle of the first arm being magnification converted to be transmitted to the second arm,
- wherein when the first and second arms are found on a neutral line connecting the first and second shafts, the transmitting pin is found at a position deviated from the neutral line.
Dependencies are inferred from the claim text.