JPH0414069U

JPH0414069U -

Info

Publication number: JPH0414069U
Application number: JP5353290U
Authority: JP
Priority date: 1990-05-22
Filing date: 1990-05-22
Publication date: 1992-02-04

Description

[Brief explanation of the drawing]

第１図および第２図は、この考案に係るひだ縫
いミシンの上送り装置の、一実施例を示す図であ
り、第１図は、送り量調節機構と、これに設けら
れた付勢体を示す外観斜視図、第２図は、第１図
に示した付勢体の構成状態を示す一部切欠断面図
、第３図は、上送り装置の構成状態を示す構成斜
視図、第４図は、スライドアームと、これに位置
調節可能に設けられたスライド体を示す平面図、
第５図は、従来の上送り装置の構成状態を示す構
成斜視図、第６図は、スツテピングモーターに設
けられた位置保持機構を示す平面図で、同図ａは
、適正保持状態を示す平面図、同図ｂは、保持力
以上の力が作用し位置ずれを起こした状態を示す
平面図である。図において、Ａ……付勢体、１……スライドア
ーム、２……スライド体、８……昇降レバー、Ｍ
……ステツピングモーター。 1 and 2 are diagrams showing one embodiment of the upper feed device of the pleat sewing machine according to this invention, and FIG. 1 shows the feed amount adjustment mechanism and the biasing body provided therein. FIG. 2 is a partially cutaway sectional view showing the configuration of the biasing body shown in FIG. 1, FIG. 3 is a configuration perspective view showing the configuration of the upper feeding device, and FIG. The figure is a plan view showing a slide arm and a slide body provided on the slide arm so that its position can be adjusted;
Fig. 5 is a perspective view showing the configuration of a conventional upward feeding device, Fig. 6 is a plan view showing a position holding mechanism provided in the stepping motor, and Fig. 6 a shows the proper holding state. The plan view (b) is a plan view showing a state in which a force greater than the holding force acts and positional displacement occurs. In the figure, A...biasing body, 1...slide arm, 2...sliding body, 8...lifting lever, M
...Stepping motor.

Claims

[Scope of Claim for Utility Model Registration] An upper feed device and a lower feed device are provided which clamp the workpiece and feed the workpiece, and the feed amount of the upper feed device is variable with the feed amount of the bottom feed device. , a pleat sewing machine that forms pleats on a workpiece and sews the pleats, is fixed to the drive shaft of a lower feed device that rotates from side to side, and has a slide groove in the direction away from the drive shaft. a slide arm, a slide body that is provided in a slide groove of the slide arm so that its position can be adjusted and rotates left and right together with the slide arm; and a transmission means that transmits the left and right rotation of the slide body to the feed dog of the upper feed device. and a feed rate adjustment mechanism that includes a lift lever that holds the slide body and a stepping motor that drives the lift lever, adjusts the position of the slide body on the slide arm, and adjusts the feed rate of the upper feed device. In the upper feed device of the pleat sewing machine, a biasing body is provided with an appropriate gap above the lift lever of the feed amount adjustment mechanism, and has a biasing force in the direction of lowering the lift lever, and An upper feed device for a pleat sewing machine, characterized in that the slide body does not move beyond a predetermined amount due to centrifugal force when rotating.