JPH08332Y2 - Electric marker for sewing - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric marker for marking the sewing positions of sewing parts and the positions of buttonholes on a cloth.

[0002]

2. Description of the Related Art For example, when a cloth part for a pocket is sewn to a front body, a sewing position is marked on the front body with a chaco, and the cloth part is positioned and sewn according to the mark. For example, a chaco pencil is used for this type of marking work, and the worker presses the chaco pencil on the surface of the cloth and rotates the entire pencil to make a dot mark.

[0003]

In the conventional work mode as described above, it is necessary to press the chaco pencil against the surface of the cloth and rotate the whole pencil while maintaining the state, which makes the operator easily tired. However, there was a limit to improving work efficiency. As a result of fatigue, the size or density of the mark or the position thereof may vary, which may cause a defect in the sewing position of the cloth part in the subsequent sewing process.

An object of the present invention is to provide a dedicated electric marker which can significantly reduce the burden on the operator and which is suitable for efficiently performing the marking operation.

[0005]

The electric marker of the present invention is a main body case 1 in which a motor 2 and a chuck mechanism which is rotationally driven by motor power in a state in which a chaco core 4 is gripped and fixed, and a motor 2 are energized. A switch 5 for on / off operation is provided. The chuck mechanism includes a hollow cylindrical chuck body 11 having a plurality of chuck claws 15 that expand and contract in the radial direction, and a sleeve 1 that is slidably externally mounted on the chuck body 11 to reduce the diameter of the chuck claws 15.
2 and a spring 13 that urges the sleeve 12 to move toward the chuck claw 15 side, and the chuck body 11 is connected to the output shaft 9 of the motor 2 via a joint 10. A release tool 17 for sliding the sleeve 12 against the spring 13 toward the inside of the body case 1 is provided on the sleeve 12 or the body case 1.

[0006]

In use, a charcoal core 4 of a color different from that of the material W to be worked is inserted into the chuck body 11 and held by the chuck claws 15. Switch 5 in this state
Is turned on to rotationally drive the chuck mechanism and the charcoal core 4, and the tip of the charcoal core 4 is lightly pressed against the surface of the cloth W to form a dot mark. The same result can be obtained even when the switch 5 is turned on while the chaco core 4 is pressed against the surface of the cloth W. In any case, the operator can form the mark simply by operating the switch 5 and holding and fixing the charcoal core 4 at the position to be marked.

[0007]

Therefore, since the chaco core 4 is held and fixed by the chuck mechanism, and the chaco core 4 is rotationally driven by the power of the motor 2 through the chuck mechanism when necessary, the operator simply switches the switch 5. Marks can be formed very simply and quickly by simply pressing the cocoon core 4 at the position to be marked, and the marking operation can be performed efficiently. Since the burden on the operator can be significantly reduced, the occurrence of mistakes due to fatigue can be reduced, and the overall production of garments involving marking work can be improved.

[0008]

1 to 3 show an embodiment of the present invention. In FIG. 2, the electric marker has a main body case 1 formed in the shape of a thick pencil, and a motor 2 and a rechargeable battery 3 and a chuck mechanism for holding and fixing the chaco core 4 are incorporated therein, and the main body case 1 On the outer surface near the lower end, a push button type switch 5 for turning on / off the power supply to the motor 2 is provided. Reference numeral 6 is a rectifier connected to a commercial AC power source, which supplies a drive current to the motor 2 or a charge current to the rechargeable battery 3 via a connector plug 7 inserted and connected to the upper end of the main body case 1. To do.

In FIG. 1, the chuck mechanism is a chuck body 11 connected to an output shaft 9 of a motor 2 through a joint 10.
And a sleeve 12 that is fitted onto the chuck body 11 so as to be vertically slidable, and a compression coil type spring 13 that pushes the sleeve 12 toward the outside of the case and biases it.

The chuck body 11 is formed into a hollow cylindrical shape by a straight tubular shaft portion 14 having an upper end fitted and fixed to the joint 10 and a chuck claw 15 continuous with the lower end of the shaft portion 14. Three slits 16 are provided from the lower end to the majority upper part of the shaft portion 14. The slit 16 divides the chuck claw 15 into three fan-shaped cross sections as shown in FIG. The chuck claws 15 are expanded radially outward in the free state. When the sleeve 12 contacts the taper wall 15a on the outer surface of the chuck claws 15, the chuck claws 15 are displaced in the diameter reducing direction, and the inner wall of the chuck claws 4 holds the chuck core 4. Fix it. Although not shown, a female screw-shaped slip stopper is formed on the inner wall of the chuck claw 15.

The sleeve 12 is formed in a cylindrical shape with both upper and lower ends open, and its lower end opening is circumscribed on the tapered wall 15a of the chuck claw 15 and its inner wall near the upper end is circumscribed on the flange 10a provided on the joint 10. It is supported in the state of doing. When the sleeve 12 is pushed into the main body case 1 against the spring 13, the chuck claws 15 are displaced by the elasticity of their own so as to expand, as shown by the imaginary line in FIG. The grip position can be freely changed by the claw 15. In order to facilitate the sliding operation of the sleeve 12, a ring-shaped projection is integrally formed on the peripheral surface of the lower end of the sleeve 12, and this is used as a release tool 17. The diameter dimension of the lower end opening of the sleeve 12 is 4
Is set to be the same as or slightly larger than the diameter size of the large diameter end of the tapered wall 15a when the chuck claw 15 is displaced to the minimum contraction size. The spring 13 is mounted between the step on the inner surface of the sleeve 12 and the flange 10a on the outer surface of the joint 10.

In FIG. 1, reference numerals 19 and 20 denote contact terminal plates which are operated to come into contact with and separate from each other by the switch 5, and the former terminal plate 19
Also serves as a spring that urges the switch 5 back to the off position.
The charcoal core 4 is formed in the shape of a round bar having a diameter of several mm, and is supplied in a state in which it is cut into vertical dimensions slightly larger than the vertical length of the chuck body 11.

When the electric marker is used, the chuck core 4 is inserted into the chuck body 11 as shown in FIG. At this time, since the chuck claw 15 contacts the outer surface of the chaco core 4 and the diameter cannot be further reduced, the sleeve 12 contacts the tapered wall 15a,
Holds that position. When the switch 5 is pushed in this state to activate the motor 2, the rotational power thereof is transmitted to the chuck body 11 via the output shaft 9 and the joint 10 and rotationally drives the entire chuck mechanism and the chaco core 4. Lightly press the rotating Chaco core 4 against the surface of the dough W,
Since the surface of the chaco core 4 is scraped by the friction with the cloth surface and adheres to the fiber, a dot mark is formed there.

When the tip of the charcoal core 4 is worn out, a finger is put on the release tool 17 at the lower end of the sleeve 12 to retract the entire sleeve 12 into the main body case 1 against the spring 13. Then, the chuck claws 15 are displaced in a diameter-expanding manner to release the gripping force, so that an appropriate amount of the charcoal core 4 can be slid out from the chuck body 11 by its own weight. After that, the sleeve 12 is returned to the original state, the taper wall 15a is pressed by the opening edge of the lower end, and the chuck claw 15 holds and fixes the charcoal core 4. The replacement and replenishment of the differently colored charcoal cores 4 can be performed in the same manner.

FIG. 4 shows another embodiment in which the release tool 17 is modified. There, a pair of shift flanges 21 are provided on the outer surface of the sleeve 12 on the base end side of the case, and a release tool 17 that engages with the flanges 21 and slides the sleeve 12 is provided on the main body case 1. The release tool 17 has a slide knob 22 and a U-shaped fork arm 23. When the slide knob 22 is moved in the direction of arrow P, the fork arm 23 moves along with the slide knob 22 and moves through the flange 21. The sleeve 12 is pushed in and out of the case against the spring 13. The slide knob 22 is the main body case 1
And the outer flat surface of the motor 2 are slidably guided and supported, and when the operating force is released, the spring 13 or a dedicated spring restores the state shown by the solid line. At this time, since the fork arm 23 faces the peripheral surface of the sleeve 12 with a slight gap, the fork arm 23 does not interfere with the rotation of the sleeve 12.

The electric marker can take a form in which the motor is driven only by a dry battery. The switch 5 can be in the form of a switch such as a push button or a slide that can hold the switching state by itself. further,
It is possible to add a control circuit for switching the driving rotational speed of the motor 2 between large and small in accordance with the quality of the material. An illuminator for displaying the mark formation position may be added in the main body case 1.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part.

FIG. 2 is an overall side view.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a vertical cross-sectional view of an essential part showing another embodiment of the present invention.

[Explanation of symbols]

 1 Body Case 2 Motor 4 Chaco Core 5 Switch 9 Output Shaft 10 Joint 11 Chuck Body 12 Sleeve 13 Spring 15 Chuck Claw 17 Release Tool

Claims (1)

[Scope of utility model registration request] 1. A motor 2 and a cocoon core 4 in a body case 1.
The chuck mechanism includes a chuck mechanism that is rotationally driven by the motor power in a state where it is gripped and fixed, and a switch 5 that turns on and off the power supply to the motor 2. The chuck mechanism is a plurality of chuck claws that expand and contract in the radial direction. A hollow cylindrical chuck body 11 provided with 15, a sleeve 12 slidably fitted on the chuck body 11 to perform a diameter reduction operation of the chuck claw 15, and a sleeve 12 movable toward the chuck claw 15 side. The chuck body 11 includes a spring 13 that biases the output shaft 9 of the motor 2.
An electric marker for sewing provided with a release tool 17, which is connected to the sleeve 12 or the main body case 1 by sliding the sleeve 12 against the spring 13 toward the inside of the main body case 1.