Detachable presser foot
AssigneeKoshin Seimitsu Kikai Kabushiki Kaisha
InventorKazuo Hida
Life of this patent
Estimating the term…
Abstract
A presser foot is disclosed which includes a quick connection and disconnection apparatus for connecting the presser foot shoe thereof to a connecting member which is adapted to be connected to a presser foot bar of a sewing machine utilizing the presser foot. Both the shoe and the connecting member include pairs of supports or limbs which are engaged to each other in a pivotal manner. One engagement is through a biased pin which extends through alignable holes in the supports of the shoe and connecting member to engage and permit quick disengagement of the shoe from the connecting member.
Claims8
A presser foot comprising:
- a presser foot shoe having a first and second support thereon;
- a connecting member adapted to be fixed to a presser foot bar having a first and second limb thereon;
- said first support having a knob extending therefrom and said first limb having a groove thereon pivotally engaged with said knob when said shoe is connected to said connecting member;
- said second support having a hole therein and said second limb having a hole therein alignable with said second support hole with said shoe connected to said connecting member;
- a pin positioned in said holes when they are aligned;
- and
- lever means engaged with said pin including a biasing spring biasing said pin into said second limb hole, said lever means being movable against the bias of said biasing spring to remove said pin from said second limb hole to disengage said shoe from said connecting member.
Dependencies are inferred from the claim text.