Loop taker for sewing machines
AssigneeMaruzen Sewing Machine Co., Ltd.
InventorYoshio Mikuni
Life of this patent
Estimating the term…
Abstract
A loop taker (18) has a loop taker body (20) molded of resin in one piece, and a hook (22) made of metal. A rotary shaft (13) is fitted in the center of the loop taker (18), and a set screw (17) threadedly inserted in the end of this rotary shaft holds down the loop taker (18). A pin (36) fixedly installed on the rotary shaft (13) is fitted in a radially extending groove (37) in the loop taker (18), whereby the loop taker (18) is connected to the rotary shaft (13) so that it will not rotate relative to the rotary shaft.
Claims16
A loop taker for sewing machines, having a hook for arresting a needle loop and adapted to be rotated or oscillated around a predetermined axis, said loop taker comprising a loop taker body substantially entirely molded of resin and having a base portion and a side wall projecting upward from the base portion, said hook being formed of metal so as to have wear resistance and separately from said loop taker body, said hook being formed on a hooked attachment having a generally L-shaped vertical cross-section defined by an upright side wall portion and a radially projecting portion having a downward facing surface extending inwardly from the upright side wall portion, said upright side wall extending continuously between a pair of generally vertical edges thereof with the hook projecting from one of said edges with the other of said edges adapted to generally abut against a generally vertical edge of the loop taker body when the hooked attachment is fixed thereto, said upright side wall extending substantially continuously from the radially projecting portion along substantially the entire height of the hooked attachment, said downward facing surface being in flush contact with a support surface formed on the loop taker body, said support surface and downward facing surface being generally parallel to a raceway formed on the loop taker body, and means for fixing said hook to the looptaker body, wherein said upright side wall portion is an attaching portion through which said hook is attached to the loop taker body, said attaching portion having a radial thickness less than the thickness of the side wall of the loop taker body.
A loop taker for sewing machines, having a hook for arresting a needle loop and adapted to be rotated or oscillated around a predetermined axis, said loop taker comprising a loop taker body substantially entirely molded of resin and having a base portion and a side wall projecting upward from the base portion, said hook being formed of metal so as to have wear resistance and separately from said loop taker body, said hook having an L-shaped vertical cross-section defined by an upright side wall portion and a radially projecting portion having a downward facing surface extending inwardly from the upright side wall portion, said downward facing surface being in flush contact with a support surface formed on the loop taker body, said support surface and downward facing surface being generally parallel to a raceway formed on the loop taker body, and means for fixing said hook to the loop taker body, wherein said upright side wall portion is an attachment portion through which said hook is attached to the loop taker body, said attaching portion having a radial thickness less than the thickness of the side wall of the loop taker body, said attaching portion being mounted to a portion of the side wall of the loop taker body having lesser thickness than remaining portions of said loop taker side wall, said attaching portion being mounted by means of radially extending screws, said attaching portion thereby being mounted in overlapping relation to the outer surface of said loop taker side wall portion of lesser thickness so that the resulting thickness of said overlapping portion is about equal to the thickness of the remaining portions of said side wall, said radially projecting portion extending inwardly to rest upon an upper edge of said loop taker side wall.
Dependencies are inferred from the claim text.