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US 4,282,779 AGranted
Indexing drive apparatus
AssigneeSankyo Manufacturing Company, Ltd.
InventorHeizaburo Kato
Life of this patent
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AssigneeSankyo Manufacturing Company, Ltd.
InventorHeizaburo Kato
Estimating the term…
An indexing drive apparatus comprises a cam assembly connected to a drive source, a cam follower turret adapted to follow the rotation of the cam assembly to be swung, a turret shaft having the turret assembly fixedly mounted thereon and adapted to be rotated in an oscilatory manner in correspondence to the swinging movement of the turret, an output shaft extending in parallel with the turret, and interlocking unit for operatively connecting the turret shaft and the output shaft. The interlocking unit includes a first swing arm secured to the turret shaft, a slide member supported in the first arm slidably in the axial direction thereof, a second swing arm secured to the output shaft, a connecting member pivotally connecting the slide member to the second swing arm, and adjusting means provided in association with the slide member for varying the ratio of a swing angle of the second swing member to that of the first swing arm by adjusting the position of the slide member relative to the first arm. The output shaft is constituted by two shaft halves which are disconnectably coupled to each other by means of a one-way clutch.
An indexing drive apparatus comprising a composite cam assembly connected to a drive source to be rotated, a turret assembly adapted to follow rotation of said composite cam assembly thereby to be swung, a turret shaft having said turret assembly fixedly mounted thereon and adapted to be rotated in an oscillatory manner in correspondence to the swinging movement of said turret assembly, an output shaft extending substantially in parallel with said turret shaft, and an interlocking unit for operatively connecting said turret shaft and said output shaft to each other, said interlocking unit including a first swing member fixedly secured to said turret shaft at one end thereof, a movable member mounted on said first swing member to be swung together with said first swing member and adapted to be movable relative to said first swing member in the axial direction thereof, a second swing member fixedly secured to said output shaft at one end thereof, a connecting member for linking the other end of said second swing member to said movable member, and adjusting means operatively connected to said movable member for varying the ratio of a swing angle of said second swing member to a swing angle of said first swing member by adjusting the position of said movable member relative to said first swing member in the axial direction thereof.
An indexing drive apparatus comprising a cam assembly connected to a drive source to be rotated, a turret assembly fixedly mounted on a turret shaft and adapted to follow rotation of said cam assembly thereby to be swung an output shaft extending substantially in parallel with said turret shaft, and an interlocking unit for operatively connecting said turret shaft and said output shaft to each other, said interlocking unit including a first swing arm fixedly secured at one end thereof to said turret shaft and extending substantially perpendicularly to said turret shaft, a slider member contained in said first swing arm to be slidably moved in the axial direction of said first swing arm, a second swing arm fixedly secured at one end thereof to said output shaft and extending substantially in parallel with said first swing arm, a connecting rod for connecting pivotally the other end of said second swing arm to said slider member, a crown gear mounted on said first swing arm so as to be swingable together with said first swing arm and additionally rotatable about an axis substantially parallel to the longitudinal axis of said first swing arm, said crown gear being operatively connected to said slider member so that said slider member is slidably displaced relative to said first arm upon rotation of said crown gear, and a spur gear adapted to mesh with said crown gear, wherein teeth of said crown gear and said spur gear are so dimensioned that rotation of said crown gear brings about the rotation of said crown gear while upon swinging movement of said crown gear together with said first arm, said crown gear is displaced relative to said spur gear in the swinging directions.
An indexing drive apparatus comprising a cam assembly connected to a drive source to be rotated, a first turret assembly fixedly mounted on a turret shaft and adapted to swing, an output shaft having a first shaft portion and a second shaft portion and extending substantially in parallel with said first turret shaft, an interlocking unit for operatively connecting said first turret shaft and said first shaft portion, and clutch means for disconnectably coupling said first and second shaft portions of said output shaft to each other, said interlocking unit including a first swing arm fixedly secured at one end thereof to said turret shaft and extending substantially perpendicularly to said turret shaft, a slider member contained in said first swing arm to be slidably moved in the axial direction of said first swing arm, a second swing arm fixedly secured at one end thereof to said first shaft portion of said output shaft and extending substantially in parallel with said first swing arm, a connecting rod for connecting pivotally the other end of said second swing arm to said slider member, a crown gear mounted on said first swing arm to be swingable together with said first swing arm and additionally rotatable about a rotation axis orthogonal to the axis of said turret shaft in a plane containing the axis of said first swing arm and the axis of said turret shaft, and a spur gear meshed with said crown gear, said crown gear being operatively connected to said slider member so that said slider member is slidably displaced relative to said first arm upon rotation of said crown gear, said crown gear being provided with a plurality of arcuate teeth formed on a spherical surface having a center at the intersection of said rotation axis and the axis of said turret shaft and extending in the direction coinciding with said rotation axis so that upon swinging movement of said crown gear said arcuate teeth of said crown gear are slidable relative to the teeth of said spur gear along the arcuate direction, said clutch means including a second cam assembly mounted on said input shaft, and a second turret assembly provided at coupling portion between said first and second output shaft portions and adapted to follow the rotation of said second cam assembly to be correspondingly swung, thereby to control connection and disconnection between said first shaft portion and said second shaft portion.
Dependencies are inferred from the claim text.