Cooling device for sewing machines
AssigneeUnion Special Corporation
InventorsHermann Gauch, Dieter Schopf
Life of this patent
Estimating the term…
Abstract
A sewing machine provided with a fan which is formed as an integral part of the handwheel and drive pulley and serves the purpose of drawing air there through for cooling. A shroud and a baffle cooperate to direct the air drawn in by the fan downward and over the bottom cover of the sewing machine which is provided with heat dissipating fins.
Claims8
A cooling device for sewing machines having stitch forming instrumentalities defining a stitch forming area and a frame having a machine chamber means, said cooling device comprising:
- a main drive shaft means mounted in said frame longitudinally thereof;
- a drive pulley means mounted on said drive shaft means, including fan means formed as an integral part thereof;
- handwheel means surrounding said fan means and fixedly secured thereto, said handwheel means having an inlet port;
- shroud means secured to said frame, and associating with said frame and said handwheel means whereby forming an air chamber means;
- and
- means for directing air discharged from said air chamber means along the bottom of said machine.
A cooling device for sewing machines having a frame including a machine chamber means, said cooling device comprising:
- a drive shaft means mounted in bearing means on said frame longitudinally thereof;
- a combined handwheel and drive pulley means carried by said drive shaft means and having at least one inlet port means;
- a belt guard means secured to said frame about said handwheel and drive pulley means and having shroud means secured thereto whereby forming an air chamber means;
- a fan means formed as an integral part of said handwheel and drive pulley means, said fan means being disposed in said air chamber means;
- and
- said shroud means includes baffle means for directing air discharged from said air chamber means along the bottom of said machine.
Dependencies are inferred from the claim text.