Method and equipment for planting hairs in sheet-form net-like material or thread form body

Abstract

A method and apparatus for planting hairs in a sheet-form net-like material or thread-form body is described. The method is characterized by the step of passing a wound portion of thread-form material from the front face to the back face of a sheet-form net-form material, or thread-form body to thereafter pass from the back face to the front face, taking out the thread-form material exposed on the surface from both ends of the thread-form material after passing through the wound portion, and fixing the thread-form material on a base material by mechanically planting hairs.

Description

BRIEF SUMMARY OF THE INVENTION

The present invention relates to a method and apparatus for planting hairs of a net-like sheet material of thread-form material, characterized by planting thread-form material having various lengths in sheet-form base material such as cloth, synthetic resin filmy materials, etc. Wigs and false eyelashes have recently been used widely by reason of demand for simplicity of life and variety of hair style. For production of these wigs, etc., hairy single yarns are manually planted one by one on a base sheet, etc. and, accordingly, much labor and care are required and the products are supplied at high prices because of such labor and care. The means for manufacturing such products with a high efficiency at low cost has not therefore come into existence.

The present invention has succeeded in planting hair mechanically with a high efficiency and removed the aforesaid inconveniences, and the first object of the present invention is to provide a method and apparatus for performing planting of hairs arbitrarily long or short hairs mechanically and with a high efficiency.

The second object of this invention is to provide a method and apparatus for perfectly planting hairs so as not to leave a possibility of separation of the planted hairs.

The third object is to provide a method and apparatus for easily planting hairs not only of short fibers but also of relatively long fibers such as human head hairs.

The fourth object is provide a method and apparatus for planting hairs not only on a woven cloth surface but also on arbitrary object surface such as sheet-form net-like material or thread-form body.

The fifth object of the invention is to provide a method and apparatus which can be used for all hair planting processes such as hair planting for a wig, hair planting for false eyelash, etc.

BRIEF DESCRIPTION OF THE DRAWING:

The accompanying drawings illustrate imbodiments of apparatus according to the present invention.

FIGS. 1 through 10 are side views showing the actions thereof;

FIGS. 11 through 17 show the second movement after b or c travels;

FIG. 18 is a side view of an embodiment for double tie-knot;

FIG. 19 is a side view of a double tie-knot;

And FIG. 20 is a drawing showing planting hairs on an object.

DETAILED DESCRIPTION

The present invention has succeeded in mechanical production, very simply and with a high efficiency by a simple device and method of a hair-planted sheet material forming a wig base material of wig hitherto considered producible by nothing but hand-operated hair planting, and can readily provide hair-planted products beginning with wigs and with long hairs not suitable to usually known pile fabric, thus developing a remarkable effect.

An embodiment of the present invention will herein be described in detail in reference with the accompanying drawings. The reference numeral 1 indicates a sewing needle having a through thread hole 2, and 3 indicates a hook needle having a hook 4 on the end thereof. These two needles are provided in parallel with a small distance therebetween on the lower end of a reciprocating rod 5. The rod 5 performs ascends and descends by means such as known cam mechanisms. The numeral 6 indicates an under looper which makes a circumventing motion in a definite direction along a definite locus around position reached by the two needles when the needles pass through a sheet material of their object and descend to the utmost, and it has a notch 7. The circumventing movement along a locus may be controlled by an arbitrary cam mechanism of known principle. The numeral 8 indicates an upper looper which, having a hook 9 on its end, performs a reciprocating motion on a slightly elliptical locus in an obliquely right direction by means such as known cam mechanisms and repeats such a motion, approaching the lower end of the two needles 1 and 3, when ascending. The numeral 10 indicates an outside hook, having a notch 11 on its end, which performs a reciprocating motion crosswise within the range of motion of the upper looper 8 by a means such as known cam mechanisms. The numeral 14 designates a trimming device comprising a heater or cutter edge provided near the end of movement of the engaging outer hook 10 and positioned such that the ends of thread hairs can be cut thereby. The letter a represents a thread hair, b a base sheet-like material, and c a thread-like material. The above described mechanism illustrates one unit of apparatus for planting a hair or hairs a at a point of the base sheet b; in case a large number of such devices are provided in parallel, a corresponding number of hairs may be planted simultaneously. If a large number of devices are provided and operated entire over the width of the base material while the base material b is moved intermittently in a definite direction, the work can be completed in a very short time. Further, by providing an auxiliary upper looper 12 in addition to the upper looper in the present equipment, a double tie-knot can be formed so as to produce a further firm hair planting. This double tie-knot may conveniently be used for high quality products as a modified embodiment of the present invention.

When planting hairs by using this apparatus, the hook needle 3 in FIG. 1 further descends as shown in FIG. 6 and the thread become looser. The hook 9 at the end of the upper looper 8 begins to draw back after catching a double thread of a thread hair a passing through the sewing needle 1 and a thread hair a thereby having a free end. The double thread is then, as shown in FIG. 7, pulled by the hook 9 and folded in four and drawn reversely in a ring-form a".

The upper looper 8 thereafter takes a position for slightly advancing from the extremity of withdrawal. The fourfold thread hair a.sub.1 increases its looseness and the engaging outside hook 10 swings, as shown in FIG. 8, to catch the fourfold hair thread a.sub.1 with the notch 11 on the end thereof and then rises up while rotating to form a tie knot d by pulling as shown in FIG. 9 as well as to cut the folded portion a.sub.2 by touching the cutting device. As shown in FIG. 10, there are then formed two threads hairs a.sub.1 cut by the tie knot d in a fixedly prescirbed length. At this time, with the descent of the sewing thread 1, the end passing through the thread hole of the thread hair a is released and recedes to start the next operation.

Providing the auxiliary upper looper 12 in addition to the upper looper 8 as shown in FIG. 11, the auxiliary upper looper 12 is passed through between the thread hair formed like a ring by hooking with the upper looper 8, and two tie-knots are double formed by further drawing backward the thread end caught with a hook 13, making the tie knot more firm; this is practiced for manufacturing quality products.

Claims

What is claimed is:

1. A method for planting thread-like materials in a base material continuously and mechanically by means of a sewing device, comprising the steps of: passing a first looped portion of a thread-like material through the base material from a front to a back surface thereof; subsequently passing the first looped portion, at a point spaced slightly apart from the point at which it first passed through the base material, through the base material from the back surface to the front surface thereof; folding other portions of said thread-like material to form another looped portion at a place where one of said other portions of said thread-like material has a free end; pulling said another looped portion to pass it through the first looped portion so that the folded double thread-like material portions formed by said another looped portion are tied firmly with said first looped portion and with the base material.

2. A method for planting thread-like materials in a net-like material continuously and mechanically by means of a sewing device, comprising the steps of: passing a first looped portion of a thread-like material through the net-like material from a front surface to a back surface thereof; passing the looped portion around the side of the thread-like material which constitutes part of the net-like material; folding other portions of said thread-like material to form another looped portion at a place where one of said other portions of said thread-like material has a free end; pulling said another looped portion to pass it through the first looped portion on the front surface of the base material; and further pulling it so that the folded double thread-like material portions formed by said another looped portion are tied firmly with said first looped portion and with the base material.

3. An apparatus for planting thread-like materials in a base material consisting of at least one set, each set comprising: a sewing needle having a through thread hole adjacent the edge thereof; a hook needle having a hook near the edge thereof; an ascending and descending rod on which said sewing needle and said hook needle are positioned in parallel with each other and extend downwardly therefrom; a lower looper adapted to make a circumventing movement on a prescribed locus, said lower looper being positioned adjacent the position of the circumference of the descent ends of both needles; an upper looper adapted to make a circumventing movement and upper looper being positioned adjacent the position of the lower portions of the ascent ends of both needles; and an engaging and disengaging hook adapted to make a transformation movement on a prescribed locus, said engaging and disengaging hook being positioned adjacent to the upper looper.

4. An apparatus for planting thread-like materials in a base material consisting of at least one set, each set comprising: a sewing needle having a through thread hole near the edge thereof; a hook needle with a hook near the edge thereof; an ascending and descending rod on which said sewing needle and said hook needle are positioned in parallel with each other and extend downwardly therefrom; a lower looper adapted to reciprocally move, said lower looper being positioned adjacent the position of the circumference of the descended ends of both needles; an upper looper adapted to reciprocally move, said upper looper being positioned close to the lower portions of the ascent ends of both needles; and an engaging and disengaging hook adapted to move on a prescribed locus, said engaging and disengaging hook being positioned close to the upper looper when the latter ascends obliquely.