JPH01155977U

JPH01155977U -

Info

Publication number: JPH01155977U
Application number: JP4492888U
Authority: JP
Priority date: 1988-04-01
Filing date: 1988-04-01
Publication date: 1989-10-26
Anticipated expiration: 2003-04-01
Also published as: JPH0616604Y2

Description

[Brief explanation of the drawing]

第１図は本案装置を備えたミシンの背面図、第
２図はその左側面図、第３図は本案装置の要部を
示す分解斜視図、第４図は揺動軸近傍の平面図、
第５図は従来装置を備えたミシンの背面図（一部
破断）、第６図はその左側面図、第７図は従来装
置の揺動軸近傍の平面図である。３……プレツサバー、４……押え金、６……揺
動軸、９……支持軸、１０……押上げレバー、１
０ａ，１０ｂ……連杆取付け穴、１１……第１の
連杆、１８……腕、１９……第２の連杆、２０…
…コイルバネ、３０……筒体。 Fig. 1 is a rear view of the sewing machine equipped with the proposed device, Fig. 2 is its left side view, Fig. 3 is an exploded perspective view showing the main parts of the proposed device, Fig. 4 is a plan view near the swing axis,
FIG. 5 is a rear view (partially cut away) of a sewing machine equipped with the conventional device, FIG. 6 is a left side view thereof, and FIG. 7 is a plan view of the vicinity of the swing axis of the conventional device. 3... Presser bar, 4... Presser foot, 6... Swing shaft, 9... Support shaft, 10... Push-up lever, 1
0a, 10b...Connection rod mounting hole, 11...First connection rod, 18...Arm, 19...Second connection rod, 20...
...Coil spring, 30...Cylinder body.

Claims

[Scope of Claim for Utility Model Registration] (1) A presser foot for a sewing machine in which the presser foot for pressing the workpiece from above is raised by operating a pedal in order to load the workpiece under the presser foot. The device includes a first connecting rod whose lower end is attached to the pedal and which transmits the force applied to the pedal, and an upper end of the first connecting rod is locked to one end and is swingable about the other end. a push-up lever provided on the push-up lever, a second link whose lower end is locked in the middle of the push-up lever and which moves in the same direction as the first link, and an upper end of the second link with one end facing toward the other end. an arm that is attached to the cylinder body and has a cylinder insertion hole and a locking part for interlocking the motion transmission member formed at the other end thereof, and an arm that is inserted into the cylinder body insertion hole to swingably support the arm; A cylindrical body fixed to the sewing machine main body, a swing shaft inserted into the cylinder and swingably supported by the cylinder, and a cylindrical body attached to the swing shaft. a motion transmitting member formed with a locked portion that interlocks with the locking portion depending on the swinging angle of the arm in order to transmit the swinging force from the arm to the swing shaft; an elastic biasing body that is partially locked to the arm and applies a return force to the arm in a direction opposite to the rocking force from the pedal; ,
A presser device for a sewing machine, comprising: a presser bar that moves up and down the presser foot supported on the tip side. (2) The push-up lever has at least three or more continuous rod mounting holes, and the first continuous rod and the second continuous rod can be detachably attached to these continuous rod mounting holes. 2. The presser device for a sewing machine according to claim 1, wherein the mounting positions of the first connecting rod and the second connecting rod are adjustable.