JPS607665Y2 - sewing machine cloth holder - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a cloth holder for a sewing machine.

2. Description of the Related Art Conventionally, in cycle sewing machines, pattern sewing machines, monogram sewing machines, and the like, fabric holders have been provided to stretch the fabric so that the fabric does not shrink during sewing.

However, in the conventional cloth holder, if there is a stepped portion in the portion where the cloth is held, there is a fear that the cloth cannot be stretched by the cloth holder.

The purpose of the present invention is to provide a fabric holder that eliminates such defects, and its main purpose is to provide a fabric holder with an opening formed therein and an outer presser formed within the frame or at the opening. , a lever plate provided on the mounting arm on the side of the opening of the outer presser foot and biased upward by a spring; and the lever plate is displaced to move the fabric between the lever plate, the outer presser foot, and the fabric support base. In the fabric holder of the sewing machine, which is equipped with an intermediate presser foot that is held in between and pushed down and extended onto the throat plate, an elastic material is attached to either the lever plate or the fabric holder base, and the sewing machine is The reason lies in the structure of the cloth retainer.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 designates an arm of the sewing machine, and reference numeral 2 designates a fabric support base, the surface of which is provided with intersecting knurls 2a, and the fabric support base 2 is placed on a sewing machine bed (not shown).

Reference numeral 3 denotes an operating arm, which has a neck having two U-grooves 3at3a', and is connected to the fabric support base 2 at the cut-off side extending to the right as seen in FIG.

Thus, the actuating arm 3 is moved by an actuating means (not shown) to x, y (
Motion in the vertical and horizontal direction is given.

Reference numerals 4 and 4' designate operating levers each fitted with a shaft 5 to the operating arm 3, and each of the operating levers 4 and 4' has a spring between it and a pin 6 fixed to the operating arm 3, respectively. 7.7 is suspended.

Reference numeral 9 denotes an outer presser in the form of a rectangular frame, and an opening 9a is formed in the frame, and levers biased upward by springs 10 are provided at four sides of the opening 9a, respectively. A mounting arm 12 with a plate 11 is fixed.

An elastic material 11 is attached to the inner surface of the lever plate 11.

Further, a slider 13 is fixed to a proper extending position of the frame of the outer presser foot 9, and the slider 13 has a screw 14 in one U groove a provided in the neck of the operating arm 3. It is slidably locked together with the sliding member 15 that is fixed at.

Reference numeral 16 denotes an intermediate presser having an arm portion 16a, and a frame body similar to the outer presser 9 has a lever plate 1 inside the opening 9a of the outer presser.
1 and cloth 17, it is arranged so that it can slide up and down as will be described later.

That is, the slider 13' fixed to the arm portion 16a is engaged with the other U-groove 3a' of the actuating arm 3 by the screw 14, as in the case of the external retainer.

Reference numeral 18 indicates a holding plate for the slider 13, 13', and reference numeral 19 indicates a mounting screw thereof.

Further, 20 is connected to the slider 13 and is connected to the operating lever 4.
This is a holding member that engages with the tip of the operating arm 3, and is disposed in a sliding groove provided in the neck of the operating arm 3 so as to be movable up and down.

The cloth holder according to the present invention is constructed as described above, and its functions and effects will be described below.

As the sewing machine moves, the actuating arm 3 is actuated by a pre-installed adaptive sewing force actuation guiding means. In the sewing order, first, the operating levers 4 and 4' are moved against the springs 7 and 7'. , the outer presser foot 9 and the intermediate presser foot 16 are placed at eight points on the right side, and the outer presser foot 9 and the intermediate presser foot 16 are
The fabric 17 to be sewn is placed between the fabric support 2 and the outer presser foot 9, both of which are spaced apart from the fabric support 2 (see FIG. 4).

Next, by returning the operating lever 4 to the left position A, the outer presser foot 9 presses the fabric 17 onto the fabric support base 2 (FIG. 5).

Subsequently, when the operating lever 4' is returned from point B to point A, the intermediate presser 16 is lowered, and the intermediate presser 16
The fabric 1 is brought into contact with the elastic member 11 and rotated.
While applying tension to the cloth 17, press it down until the cloth 17 comes into contact with the upper surface of the throat plate (see FIG. 6).

Therefore, the entire circumferential edge of the fabric 17 to be sewn is sandwiched between the inner surface of the opening 9a of the outer presser foot 9 and the inner surface of the opening 9a of the outer presser foot 9, and the lower pressing action of the intermediate presser foot 16 allows the sewing portion to be properly positioned on the throat plate. It is expanded and held in a tensioned state.

If the sewing is performed after performing the above operations, regardless of whether the fabric is thick or thin, it is certain that the fabric will not shift or shrink during sewing. This can be absorbed, the cloth is held in a uniform state, and the cloth can be completely stretched, which has great practical effects.

Incidentally, even if the elastic material 11' is provided on the cloth support base 2, the same effect can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view of the fabric holder of the present invention attached to a sewing machine, Fig. 2 is a plan view of the fabric holder shown in Fig. 1, Fig. 3 is a view from the C arrow direction in Fig. FIG. 6 is an explanatory diagram of the operation of the outer presser of the cloth holder of the present invention. 1: Arm, 2: Fabric support base, 3: Operating arm, 4゜4': Operation lever, 19 7' spring, 9: External presser foot,
10 Spring, 11: Lever plate, 12: Mounting arm, 13
．． 13: Slider, 16: Intermediate presser foot, 17: Fabric.

Claims (1)

[Scope of utility model registration request] A cloth support base with an opening formed therein, an outer presser foot with an opening formed in the frame, and a lever plate provided on a mounting arm on the side of the opening of the outer presser foot and biased upward by a spring. and an intermediate presser that displaces the lever plate to sandwich the fabric between the lever plate, the outer presser foot, and the fabric support base, and presses and stretches the fabric onto the throat plate. A cloth holder for a sewing machine, characterized in that an elastic material is attached to either the lever plate or the cloth holder.