JPS6293975U

JPS6293975U -

Info

Publication number: JPS6293975U
Application number: JP18648085U
Authority: JP
Priority date: 1985-12-03
Filing date: 1985-12-03
Publication date: 1987-06-16
Also published as: JPH0112710Y2

Description

[Brief explanation of drawings]

第１図〜第５図は本考案の一実施例を示すもの
で、第１図はミシンの逆転可能な布送り装置の一
部破断正面図、第２図は同平面図、第３図は同要
部の分解斜視図、第４図は連結部材の一部破断斜
視図、第５図は布送り装置の逆転時の状態を示す
平面図、第６図は従来例を示すもので、ミシンの
送り変換機構の説明断面図である。１１……支持基板（ミシン機枠の一部）、１５
……駆動軸、１６……水平送りカム、１７……作
動部材、４６……連結部材、６１……送り方向切
換ボタン（操作体）、６８……弾性部材、Ｂ……
送り調節器。 Figures 1 to 5 show an embodiment of the present invention, in which Figure 1 is a partially cutaway front view of a reversible cloth feeding device of a sewing machine, Figure 2 is a plan view of the same, and Figure 3 is a FIG. 4 is a partially cutaway perspective view of the connecting member, FIG. 5 is a plan view showing the state of the cloth feeding device when it is reversed, and FIG. 6 shows a conventional example. FIG. 3 is an explanatory sectional view of the feed conversion mechanism of FIG. 11...Support board (part of sewing machine frame), 15
... Drive shaft, 16 ... Horizontal feed cam, 17 ... Operating member, 46 ... Connection member, 61 ... Feed direction switching button (operating body), 68 ... Elastic member, B ...
Feed regulator.

Claims

[Scope of Claim for Utility Model Registration] (1) A feed dog that performs four-movement feed in synchronization with the vertical movement of the sewing needle, and a drive shaft that is rotatably driven to rotate in relation to the vertical movement of the sewing needle. an actuating member that engages and operates the horizontal feed cam to impart an amount of horizontal feed movement to the feed dog in an amount adjusted and set by a feed adjuster; the horizontal feed cam and the drive; a connecting member capable of connecting the shafts in either a predetermined forward-feeding connected state or a reverse-feeding connected state having an angular phase difference of about 180 degrees;
an operating body that can be operated to reversibly switch the connection state of the horizontal feed cam and drive shaft by moving one member of the horizontal feed cam and the connecting member in the axial direction of the drive shaft with respect to the other member; In the sewing machine, the operating body is configured to be movable in a direction parallel to the drive shaft, and the horizontal feed cam and the one member among the connecting members are operatively connected to the operating body. 1. A reversible cloth feeding device for a sewing machine, characterized in that an elastic member having elasticity against bending force or torsional force is pivotally supported on a sewing machine frame for connection to a sewing machine frame. (2) The utility model characterized in that the elastic member is configured such that one end thereof is pressed against and connected to the horizontal feed cam and the one member of the connecting member due to its own elasticity. A reversible cloth feeding device for a sewing machine according to registered claim (1). (3) The elastic member is configured such that the dimension in the axial direction of the pivot shaft is sufficiently smaller than the dimension in the direction perpendicular to the pivot shaft, and the torsional force is elastic when the operating body is moved. A reversible cloth feeding device for a sewing machine according to claim (1) of the patented utility model, characterized in that it acts on a member.