JPS6118858Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a foot switch for an electric sewing machine.

(Prior art) Conventionally, when fabric products are processed manually using an electric sewing machine, the start and stop operations of the electric sewing machine are all done using a foot-operated switch because the worker uses both hands. It has become customary to use the foot to operate the pedal, and a common example of this is shown in Fig. 6 of Japanese Patent Publication No. 31-4262 (Fig. 3 of the drawings of the present application). Briefly referring to FIG. 3 above, a motor speed controller or resistor 40, which can be placed on the floor, is portable and placed on the floor below the cabinet, and is connected to a wire cord of the required length. The resistor 40 is formed into a hollow box including a cover plate 42 with a petal 41 protruding from one end and a base body 43 placed on the floor. The petal 4 is provided with a light source installed in the housing for the purpose of displaying an indicator light on the outside of the body.
1 is made of a transparent plastic material so that it can be illuminated in the dark, and the indicator light is made of an incandescent lamp 44, and the light beam emitted from the incandescent lamp 44 is directed outward from the resistor 40 through the transparent petal 41. By emitting light, the position of the petal 41 can be confirmed visually in the dark. In the case of the above, when operating a resistor placed on a dimly lit floor below the sewing machine cabinet, use an incandescent lamp or a Since it is constructed by assembling a complex mechanism such as a switch mechanism and electrical wiring between the switch mechanism and the power source, it is costly and the petal, which is button-shaped and located at a high position, does not emit light. The problem was that it was easy to step on the wrong foot and was difficult to use.

(Problems to be solved by this invention) The problems to be solved by this invention are the direction of the feet of the worker facing the electric sewing machine during normal sewing work, and the positioning of the surging work plate at right angles to the work table. When installing and performing surging work, the direction of the operator's feet facing the electric sewing machine cannot be visually checked.
The purpose is to enable easy displacement by simply operating one movement of the tip of the foot.

(Means for solving the problem) The technical means taken by this invention to solve the above problem is that a bearing boss is attached to the bottom of the support leg of the electric sewing machine, and one end is bent downward on this boss. Support the vertical part of the arm, and
Supports rotation of approximately 180° around the boss.
A separately provided switch plate is horizontally long and has approximately the same length as the arm, and a hole is formed along the upper edge by bending.The arm is inserted into this hole and fixed at a required angle of inclination. A pair of ON and OFF switch pedals are installed on the sloping upper surface of the machine, and the switch plate is placed in the correct position during sewing work using the work table specific to the electric sewing machine. When performing special work such as surging, where another work plate is attached to the work table, the switch plate is displaced 90 degrees with the toes of the worker's feet, and the worker's working position is such that the toes and the switch plate always face each other. It is made to be able to be freely displaced.

(Function of the invention) In this invention, a switch holder equipped with a pair of switch petals is supported by an arm rotatably attached to the lower part of the support leg of an electric sewing machine via a boss, so that the switch holder can be moved to the working position. The object is to be able to move freely using only the toes of the feet without visual inspection.

(Example) Hereinafter, an example of this invention will be described in detail based on the drawings.

In the embodiment of this invention, as shown in FIGS. 1 and 2, the arm 1 is bent at one end downward (in the figure) by a metal rod and inserted vertically into the boss 2 described later from above. A vertical rod portion 3 is provided, and the straight rod portion 4 of the arm 1 is formed to a length that allows it to be inserted into and supported in a hole 6 of a switch plate 5 to be described later. The boss 2 is attached to one side of the lower part of the support leg 7 that supports the electric sewing machine, with the shaft hole 8 facing upward.The vertical rod portion 3 is inserted into the shaft hole 8, and the arm 1 is horizontally moved approximately 90 degrees. It is rotatably supported. The switch plate 5 is horizontally long and has approximately the same length as the straight rod portion 4, and the insertion hole 6 is formed at the upper edge by bending so as to have an inner diameter slightly larger than the diameter of the straight rod portion 4. By inserting the straight rod portion 4 into this insertion hole 6, the switch plate 5 is attached to the arm 1 so as to be suspended therefrom. At this time, the switch plate 5 is fixed on the side facing the working position 9 so as to maintain the required inclination angle.
On the seat plate 10 is an electric sewing machine and a power source (not shown).
An ON switch petal 11 and an OFF switch petal 11' are provided, and the switch plate 5 is fixed with a screw 12 provided on the boss 2 to constitute a foot switch B. In this case, since the bottom surface of the seat plate 10 barely corresponds to the floor surface C, once it is fixed at the working position 9 or 9', the position will not be easily displaced, so the screws 12 are operated each time. It's not as good as that. The work table 13 is an existing one equipped to perform the sewing work of the electric sewing machine, and the work table 14 provided separately is used for serging workpiece materials (clothes and other items not shown). It shall be removed from the work table 13 except when necessary for work.

Now, to explain the case where the work table 13 shown in Fig. 1 is used to finish the normal suturing work and then continue the surging work, basically, first, the screw 12 of the boss 2 of the foot switch B is loosened. After that, put your foot on the arm 1, move it to the position of the arm 1a shown by the chain line, and tighten the screw 12. Next, the work plate 14, which was removed separately, is attached to one side of the upper part of the work table 13 at right angles with the bolts 15, 15.
4 and the switch plate 5 of the foot switch B are vertically parallel to each other. This work board 1
When performing surging work based on the correspondence between switch plate 5 and switch plate 5, the operator at work position 9' has both feet facing switch plate 5 at almost right angles, and uses his/her feet to move switch pedal 1.
When operating either switch 1 or switch 11', there is no strain on the upper body, and no mistakes occur when operating the switch manually or with the foot, so the work can be carried out accurately.

(Effects of the invention) Since this invention is constructed as described above, it has the following advantages.

(1) The arm that supports the switch plate is rotatably supported on a boss attached to the support leg of an electric sewing machine via a vertical rod, and when performing surging work other than suturing work, it can be Since the foot switch can be easily moved to a position facing the worker, the switch can be operated accurately using the foot, and work errors due to erroneous operation can be completely eliminated.

(2) The vertical rod part of the arm supported on the boss is fixed with a screw, and there is no gap between it and the bottom of the seat plate, so the foot switch can not only be fixed in the specified position, but also Even when changing the work, the arm can be freed by a single motion of the tip of the foot without having to operate the screws, allowing quick response to changes in work.

(3) Compared to the conventional floor-mounted type, which requires lifting by hand to change direction or checking the position of the foot button using a light source, it is difficult to check the position of the foot button on the work table or Since you can easily put your feet in the correct position with the work board and operate the switch in a natural position without having to take a break from your manual work, it has a huge effect on not causing any hindrance to your manual work.

[Brief explanation of the drawing]

FIG. 1 is an overall plan view of the device of the present invention, FIG. 2 is an enlarged front view of the device of the present invention, and FIG. 3 is an explanatory diagram of the prior art. Explanation of symbols of main parts, 1...arm, 2...
Boss, 5... Switch plate, 7... Support leg,
9, 9'... working position, 11, 11'... switch petal, 13... working table, 14... working board.

Claims (1)

[Scope of utility model registration request] A support leg 7 is installed at the bottom of the support leg 7 that supports the electric sewing machine.
A boss 2 is installed in parallel with the arm 1, and an arm 1 which can be rotated horizontally by 90 degrees is supported via the boss 2. A switch plate 5 having a substantially L-shaped cross section and having a pair of OFF switch pedals 11, 11' is installed, and the distance between the bottom surface of the switch plate 5 and the floor surface is maintained to such an extent that the switch plate 5 does not move when the pedals are stepped on. The work table 13 is configured to be detachably attached to a work plate 14 which is used only when performing surging work, and the switch plate 5 is placed at a fixed work position 9 during normal suturing work.
This variable holder device for a foot-operated switch is characterized in that the work plate 14 is attached to the work table 13 during surging work, and the switch plate 5 can be moved to the work position 9' via the tip of the foot.