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US 4,060,044 AGranted
Toy sewing machine
OwnerShigeaki Kuramochiinventor
Life of this patent
Estimating the term…
Abstract
A toy sewing machine capable of sewing in zig-zag patterns comprising cam body having plural cam faces, a vertically movable pin arranged to engage with any one of the cam faces of the cam body, and means for connecting said pin with a needle holding rod. Said means comprises a freely rotatable lever of "L" shape urged in one direction by a torsion bar spring, one end of said lever having the pin penetrated therethrough, and a link pivotally attached to the other end of said lever.
Claims1
A toy sewing machine comprising:
- a rotary cam shaft associated with a rotary rod for moving a needle-holding rod having a needle thereon in the upper and lower directions;
- a cam body comprising a plurality of overlapping cams having plural cam faces at the periphery thereof and supported by the cam shaft;
- a vertically movable pin arranged to engage with any one of the cam faces of the cam body;
- a rotary shaft;
- a freely rotatable lever of "L" shape pivotally supported by the rotary shaft and urged in one direction by a torsion bar spring, one end of said lever having the pin penetrated therethrough;
- a frame to which the base portion of said lever is pivotally attached;
- a link pivotally attached to the other end of said lever and connected to a needle-holding rod;
- thread-holding pieces for cooperation with said needle;
- a thread-holding rod for controlling the thread holding operation of the thread-holding pieces;
- and
- an arm projected from the rotary shaft and connected to the thread-holding rod for controlling the thread holding operation of the thread-holding rod.
8 more elements
Dependencies are inferred from the claim text.