Reversible hand-operated sewing machine
AssigneeTippmann Industrial Products, Inc.
InventorsBradley Tippmann, Allen W. Rife
Life of this patent
Estimating the term…
Abstract
A manually-operated sewing machine is provided. The sewing machine includes a manually-operated handle, a needle bar to hold a needle, and a direction control device. The needle bar reciprocates responsive to a reciprocating motion of the manually-operated handle. The direction control device controls lateral movement of the needle bar between forward and reverse directions. The direction control device is movable between a first position that corresponds to the forward direction and a second position that corresponds to the reverse direction.
Claims20
A manually-operated sewing machine comprising:
- a manually-operated handle;
- a needle bar to hold a needle, wherein the needle bar is configured to reciprocate responsive to a reciprocating motion of the manually-operated handle;
- a direction control device configured to control lateral movement of the needle bar between a forward direction and an opposing reverse direction;
- and
- wherein the direction control device is movable between a first position that corresponds to the forward direction and a second position that corresponds to the reverse direction.
A manually-operated sewing machine comprising:
- a manually-operated handle;
- a needle bar to hold a needle, wherein the needle bar is configured to reciprocate responsive to a reciprocating motion of the manually-operated handle;
- a direction control device configured to control lateral movement of the needle bar between a forward direction and an opposing reverse direction;
- a direction control plate pivotable concomitant with the direction control device, wherein the direction control plate includes a groove and one or more cam surfaces;
- a cam follower connected with the needle bar and configured to reciprocate within the groove of the direction control plate responsive to a reciprocating motion of the manually-operated handle;
- and
- wherein the direction control device is pivotable in a first direction that corresponds to the forward direction and a second direction that corresponds to the reverse direction.
A manually-operated sewing machine comprising:
- a manually-operated handle;
- a needle bar to hold a needle, wherein the needle bar is configured to reciprocate responsive to a reciprocating motion of the manually-operated handle;
- a direction control device configured to control lateral movement of the needle bar between a forward direction and an opposing reverse direction;
- a direction control plate pivotable concomitant with the direction control device, wherein the direction control plate includes a groove and a plurality of cam surfaces, wherein at least one cam surface corresponds with the forward direction and at least one cam surface corresponds with the reverse direction, wherein the plurality of cam surfaces are approximately symmetrical about a longitudinal axis of the direction control plate;
- a cam follower connected with the needle bar and configured to reciprocate within the groove of the direction control plate responsive to a reciprocating motion of the manually-operated handle;
- wherein the direction control device is pivotable in a first direction that corresponds to the forward direction and a second direction that corresponds to the reverse direction;
- wherein the at least one cam surface corresponding with the forward direction is oriented so the cam follower advances the needle bar in the forward direction corresponding to the direction control device being pivoted in the first direction;
- and
- wherein the at least one cam surface corresponding with the reverse direction is oriented so the cam follower advances the needle bar in the reverse direction corresponding to the direction control device being pivoted in the second direction.
Dependencies are inferred from the claim text.