Wiper device for sewing machine
AssigneeBrother Kogyo Kabushiki Kaisha
InventorShinya Fujihara
Life of this patent
Estimating the term…
Abstract
A wiper device includes a trimmer to trim an needle thread, a needle bar mounted so as to be vertically moveable and having a sewing needle attached in the lower end, a wiper member to wipe the needle thread extending from an eye of the sewing needle as to pull the needle thread above the upper surface of work cloth after trimming the needle thread, a wiper driving unit to actuate the thread wiping movement of the wiper member and a switch unit to switch the wiper member between an operable state and an inoperable state in conjunction with the position of the needle bar.
Claims8
A wiper device for a sewing machine, comprising:
- a thread trimmer to trim a needle thread;
- a needle bar provided so as to be vertically moveable and having a sewing needle attached on a lower end thereof;
- a wiper member to wipe the thread so as to pull out the needle thread extending from an eye of a sewing needle after trimming the needle thread by the thread trimmer to an upper surface of work cloth;
- a wiper driving unit to actuate a thread wiping operation of a wiper member;
- and
- a switch unit to mechanically switch the wiper member between an operable state and an inoperable state according to a position of the needle bar.
A wiper device for a sewing machine, comprising:
- a thread trimmer to trim a needle thread;
- a needle bar provided so as to be vertically moveable and having a sewing needle attached on a lower end;
- a presser bar which is provided so as to be vertically moveable and to which a support member having a presser foot in a lower, end thereof is detachably attached;
- a wiper member to wipe the thread so as to pull out the needle thread extending from an eye of the sewing needle after trimming the needle thread by the thread trimmer to an upper surface of work cloth;
- a wiper driving unit to actuate a thread wiping operation of the wiper member;
- and
- a switch unit to mechanically switch the wiper member between the operable state and the inoperable state according to the position of the needle bar.
Dependencies are inferred from the claim text.