JPH03103082U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the first invention, Figure 1 is a cross-sectional view showing the sewing machine arm equipped with the upper thread handling mechanism, and Figure 2 is the main part of the mechanism. FIG. 3 is an exploded perspective view of its main parts, FIGS. 4 to 6 show an embodiment of the second invention, and FIG. Figure 5 is a perspective view showing the main parts of the mechanism, Figure 6 is an exploded perspective view of the main parts, and Figures 7 to 9 are the third device. Fig. 7 is a cross-sectional view showing a sewing machine arm equipped with an upper thread sorting mechanism, Fig. 8 is a perspective view showing a main part of the mechanism, and Fig. 9 is a main part thereof. FIG. 1... Sewing machine arm, 2... Swing axis, 4, 10
, 20... swinging arm, 5, 12, 22... connecting arm,
6, 13, 23... Mounting shaft, 7... Decorative thread handling, 4A... Spherical sliding part, 5A... Cylindrical base end, 10A, 20A... Cylindrical fitting part, bifurcated shaped fitting portion, 10B...opening, 11A, 21A...hole, 12A, 22A...arm, 12B, 22B...
pin.

Claims (1)

[Claims for Utility Model Registration] (1) The upper end is fixed to the tip of a swing shaft installed horizontally on the sewing machine arm, and the lower end is swung on a plane perpendicular to the axis of the swing shaft. A swinging arm is provided with a spherical sliding part, and a cylindrical base end is fitted onto the sliding part of the swinging arm so as to extend in the horizontal direction, and the swinging of the swinging arm causes the cylinder to a connecting arm whose base end swings around the distal end side; and an upper end holding the distal end of the interlocking arm so that the distal end of the interlocking arm can slide freely in the horizontal direction. A top thread for a sewing machine, comprising a mounting shaft which extends downward and is rotated about an axis by the rotation of the tip of the connecting arm, and to which a top thread handler is attached to the lower end. Judgment mechanism. (2) The upper end is fixed to the tip of a swing shaft installed horizontally on the sewing machine arm so that it swings on a plane perpendicular to the axis of the swing shaft, and a cylindrical fitting part is attached to the lower end. a spherical sliding piece that is fitted into a fitting portion of the swinging arm; and a pin that protrudes upward from the base end of the arm that extends in the horizontal direction; The sliding piece is passed through an opening formed on the lower side of the fitting part of the moving arm and inserted into the hole formed from the lower side of the sliding piece toward the upper side, and the sliding piece is inserted through the sliding piece by swinging of the swinging arm. a connecting arm whose proximal end swings about the distal end side; A top cover thread handling mechanism for a sewing machine, comprising a mounting shaft that rotates around an axis and has a top cover thread handle attached to its lower end. (3) The upper end is fixed to the tip of a swing shaft installed horizontally on the sewing machine arm so that it swings on a plane perpendicular to the axis of the swing shaft, and a bifurcated fitting part is attached to the lower end. a spherical sliding piece that is fitted into the fitting portion of the swinging arm; and a pin that protrudes upward from the base end of the arm that extends in the horizontal direction; The movable piece is fitted into a hole formed from the bottom to the top, and as the swinging arm swings, the proximal end of the swinging arm moves through the sliding piece that is fitted into the fitting part of the swinging arm. A connecting arm that swings as a rotation center; an upper end fixed to the tip of the connecting arm and extending downward; and a lower end that is rotated around an axis by rotation of the tip of the connecting arm; A top cover thread handling mechanism for a sewing machine, comprising a mounting shaft on which a top cover thread handler is attached.