JP2534839Y2 - Sanitary tampon - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called sanitary tampon for closing a vaginal cavity and absorbing menstrual blood, and more particularly to an improvement in sewing a cord for pulling out the same.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, an absorbent body 1 which is a tampon main body formed by compressing an absorbent fiber aggregate sheet piece such as cotton or rayon, and a drawer cord 2 extending from a rear end thereof. Sanitary tampons comprising are well known.

[0003] The absorbent body 1 is formed by laminating the fiber assembly sheet pieces in various forms. As an example, a fiber fleece piece is cut into a vertically long rectangle, and a plurality of the fiber fleece pieces are laminated or given. A fiber fleece piece cut into a length and a width is folded in a zigzag shape and laminated in a vertically long rectangle. As shown in FIGS. 7 and 8, in a state where a part of the drawer cord 2 is positioned at the longitudinal center of at least one surface of the absorber 1, and the rest extends from the rear end of the absorber 1. Then, the cord 2 is sewn to the absorber 1 from the front end a to the rear end b of the absorber 1 with the sewing thread 3, and the sewing thread 3 is sewn (tied) to the cord 2 from the rear end b to the rear end c of the cord 2. I have.

[0004] The structure of the seam (sewing thread entanglement structure) in this sewing is defined as "double chain stitching" in "JIS B 9070". This "double chain stitch"
Also referred to as "double thread ring stitching" and is well known to those skilled in the art.

[0005] The absorbent body 1 in such a state is pressed and formed into a rod-shaped body as shown in FIG. As shown in FIG. 6, in the compression-molded absorber 1, the cord 2 and the sewing thread 3 are usually buried inside the absorber 1, and are not visible from the outside. Even if they are exposed, they are only a small part.

The structure of the seam is a seam formed by an upper thread 3A and a lower thread 3B as shown in an enlarged view in FIG. The stitches are doubly interlaced with each other with respect to 3B. More specifically, in FIG. 9, the start of the seam is on the right side, and the end of the seam is on the left side. Upper thread 3A has a plurality of stitches _{C 1, C 2, C 3} ~Cn in units of first loop A and a second loop B, continuous to the left which is the sewing end from the right side of these seams is sewing start It is arranged in a way. The lower thread 3B is adjacent to the seam C ₁
And C ₂ , C ₂ and C ₃ , C ₃ and Cn respectively in the first loop A
And a second loop B, a third loop D and a fourth loop E are formed and intersected, and are continuous from right to left. The right side is the tip of the tampon, and the left side is the rear end of the tampon.

[0007]

[Problems to be solved by the invention] As shown in FIG.
The rear end of the tampon, i.e., the rear end of the cord 2, when the rear end 3B ₁ of the lower thread 3B is out first loop A seam Cn cause of such loose, the upper thread 3A is pulled to the left, as shown in FIG. 11, crossing the second loop B and the lower thread 3B seam Cn, is crossing the seam Cn, third loop D of both the first loop a and seam C ₃ of C _3, solved respectively. In this state, the upper thread 3A and / or the lower thread 3
When B is pulled to the left, as shown in FIG. 12, the crossing of the upper thread 3A and the lower thread 3B is sequentially released from the left to the right, and further similarly, when pulled, the crossing of the upper thread 3A and the tip of the tampon is released, Finally, all the seams C ₁ , C ₂ , C ₃ ~
Cn disappears and the absorber 1, the cord 2 and the sewing thread 3 separate from each other. When such a state occurs when using a tampon, even if the cord 2 attempts to pull out the absorbent body 1 from the vaginal cavity, the cord 2 pulls out of the absorbent body 1 and the absorbent body 1
Are left in the vaginal cavity.

The reason that such a situation occurs from the portion of the cord 2 extending from the rear end of the absorber 1 is that the portion and the portion of the sewing thread 3 to be sewn to the portion have flexibility, and the flickering in any direction. This is because, when the tampon is exposed, the sewing thread 3 is caught by a manufacturing machine or a tampon applicator when the tampon is used, and a part of the sewing thread 3 is detached from the cord 2 or cut.

The present invention focuses on the start and end of sewing of the sewing thread and the structure of the stitch, and has an object of how to prevent the above situation from occurring.

[0010]

The present invention for solving the above-mentioned problem is based on a drawer arranged between the front end and the rear end of a fiber absorber with a sewing thread by double chain stitching specified in JIS B 9070. A sanitary tampon is formed by sewing a part of the cord to the absorbent body, sewing the sewing thread to the remaining part of the cord extending from the rear end of the absorbent body, and pressing and molding the absorbent body. And

[0011] In the present invention, the start of sewing by the double chain stitch is located at the rear end of the cord, and the end of sewing is located at the front end of the absorber.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of a tampon according to the present invention will be described below.

The tampon shown in FIGS. 1 to 3 and the structure of the seam of the absorbent body 1, drawer cord and sewing thread 3 (“double chain stitch” of “JIS B 9070”) and the like constituting the tampon are shown in FIGS. 9 are the same as those described with reference to FIG.
A description thereof will be omitted.

However, in the present invention, the tampon is shown in the opposite direction to that in FIGS. 6 to 9, and the left side is the front end of the tampon and the right side is the rear end of the tampon.
In addition, the sewing thread 3 is sewn (entangled) to the cord 2 from the rear end c of the cord 2 to the rear end b of the absorbent body 1, and further the cord 2 is sewn from the rear end b to the distal end a of the absorbent body 1 with the sewing thread 3. Has been sewn. That is, in the case of the above-described conventional tampon, the start of sewing with the sewing thread 3 is at the leading end of the tampon, and the end of sewing is at the rear end of the tampon. It has been reversed.

[0015]

[Action] As shown in FIG. 4, the rear end of the tampon, i.e., the rear end of the cord 2, when the rear end 3B ₂ of the lower thread 3B is out first loop A of the seam C ₁ due to causes such as fray even upper thread 3A is pulled to the right, as shown in FIG. 5, crossing the first loop a and the lower thread 3B of the seam C ₁ is not solved. The same applies when the lower thread 3B is pulled to the right.
This is a marked difference from the tampon described above. Of course, as described above, the sewing end where the sewing thread 3 is easily frayed is
Since the absorber 1 is usually fixed inside by compression molding, it does not fray, and even if it is frayed, it is not pulled, so there is no danger of being unraveled.

[0016]

According to the tampon according to the present invention, since the tampon has the above configuration and operation, when the tampon is pulled out from the vaginal cavity, the cord comes off from the absorbent due to the fraying of the sewing thread between the absorbent and the cord. Therefore, there is no possibility that the absorbent remains in the vaginal cavity, and the absorbent can be used with confidence.

[Brief description of the drawings]

FIG. 1 is a side view of a tampon completed by compression-molding an absorber.

FIG. 2 is a schematic sectional view of an absorber of the tampon of FIG. 1;

FIG. 3 is an enlarged schematic view of a configuration of a stitch of a sewing thread.

FIG. 4 is the same view as FIG. 3 and shows an example in which a lower thread is detached from an upper thread at the start of sewing of the sewing thread.

5 is the same view as FIG. 3 and shows an example when the upper thread is pulled to the right in the state of FIG. 3;

FIG. 6 is a side view of a conventional tampon completed by squeezing an absorber.

FIG. 7 is an external perspective view of a conventional tampon in which a drawer cord is sewn with a sewing thread to the absorbent body before compression molding.

FIG. 8 is a schematic sectional view of the absorber of the tampon of FIG. 7;

FIG. 9 is an enlarged schematic diagram of a configuration of a stitch of a sewing thread in FIG. 7;

10 is the same view as FIG. 9 and shows an example in which the lower thread at the end of the sewing of the sewing thread of FIG. 7 has come off from the upper thread.

11 is the same view as FIG. 9 and shows an example when the upper thread is pulled to the left in the state of FIG.

FIG. 12 is the same view as FIG. 8, but showing an example in which the sewing thread of FIG. 7 has come off from a cord extending from the absorber.

[Explanation of symbols]

 1 Absorber 2 Cord 3 Sewing thread

Claims (1)

(57) [Scope of request for utility model registration] 1. A part of a drawer cord located between a front end and a rear end of a fiber absorbent body is sewn to the absorbent body with a sewing thread by double chain stitching specified in JIS B 9070. In a sanitary tampon formed by sewing the sewing thread to the remaining portion of the cord extending from the rear end of the absorbent body and pressing the absorbent body, the sewing start by the double chain stitching is performed at the rear end of the cord. Wherein the sewing end is at the tip of the absorber.