JPS635979U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、この考案に係る送り歯機構周辺の平
面図、第２図は第１図における―線断面図、
第３図は、この考案の一実施例における分解斜視
図、第４図ないし第８図は従来技術の説明図で、
第４図はシリンダーベツド型ミシンの正面図、第
５図は、第４図におけるＡ部分の平面図、第６図
は送り歯機構周辺の縦断面図、第７図は第６図に
おける―線断面図、第８図は、送り歯機構の
分解斜視図である。 ６……送り歯、７……送り腕、９……揺動ピン
、１１……偏心カム。 Fig. 1 is a plan view of the vicinity of the feed dog mechanism according to this invention, Fig. 2 is a sectional view taken along the line - - in Fig. 1,
FIG. 3 is an exploded perspective view of one embodiment of this invention, and FIGS. 4 to 8 are explanatory diagrams of the prior art.
Fig. 4 is a front view of the cylinder bed type sewing machine, Fig. 5 is a plan view of part A in Fig. 4, Fig. 6 is a vertical cross-sectional view of the vicinity of the feed dog mechanism, and Fig. 7 is a line taken along the line shown in Fig. 6. The sectional view, FIG. 8, is an exploded perspective view of the feed dog mechanism. 6... Feed dog, 7... Feed arm, 9... Swing pin, 11... Eccentric cam.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 下軸端部の歯車部を偏心カム内周面の歯車部に
かん合して偏心カムを回動させ、偏心カムの外周
面と、送り腕端部との間に介装した揺動ピンによ
つて、偏心カムの回動に従動して送り腕端部に取
付けた送り歯の上下方向往復動を得るようにした
ミシンの送り歯機構において、前記揺動ピンをそ
の上端は送り腕端部下面に、また下端は偏心カム
の外周面にそれぞれ当接するよう針板台に形成し
た取付孔にかん装支持したことを特徴とするミシ
ンの送り歯機構。 The gear part on the end of the lower shaft is engaged with the gear part on the inner peripheral surface of the eccentric cam to rotate the eccentric cam, and the swing pin interposed between the outer peripheral surface of the eccentric cam and the end of the feed arm Therefore, in a feed dog mechanism of a sewing machine which is configured to follow the rotation of an eccentric cam to obtain vertical reciprocating motion of a feed dog attached to the end of the feed arm, the swing pin is connected to the end of the feed arm with its upper end. A feed dog mechanism for a sewing machine, characterized in that the feed dog mechanism is supported by mounting holes formed in a throat plate base so that the bottom surface and the bottom end thereof abut against the outer peripheral surface of an eccentric cam.