JPS6035152B2 - Condoms and their manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a condom that is easy to use and securely retains the venom reservoir.

Conventionally, condoms are packaged in a flat plate by rolling up the proximal end with the sap reservoir at the tip on the top surface, but when using this condom, it is difficult to distinguish between the front and back sides. Various improvements have been made from a variety of sources.

The present invention is a proposal for such an improvement, and at the same time, the primary purpose of the invention is to ensure the retention of the sap reservoir, and furthermore, it is easy to distinguish between the front and back sides, and it can be attached with one touch during use. The purpose is to provide a condom that is easy to manufacture and compact in packaging.

The gist of the present invention is disclosed by the embodiments and partial explanatory diagrams shown in FIGS. 1 to 6.

The condom of the present invention shown by these drawings is
A condom having a semen reservoir at the tip, and a unit operation piece made of two band-shaped sheets of thermoplastic synthetic resin or the like arranged opposite each other, leave a tip handling part on the tip side, and the semen is placed on the inner surface of the unit operation piece. The unit operation piece is formed by welding the inner surfaces of the unit operation pieces to each other in a state of being spaced apart for a certain period in the width direction to form a planar holding part in which the reservoir can be housed. The gist is that the piece is housed in a planar holding part, and the proximal end of the operating piece is wrapped around the main body of the condom.

Hereinafter, the present invention will be further explained based on embodiments illustrated in detail. What is shown in FIGS. 1 and 2 is a first embodiment of the condom according to the present invention, and This condom has a sap reservoir 2 at its tip and is coated with a suitable lubricant like conventional condoms on the market.

Next, what is shown as 3 in the figure is an operating piece attached to this condom 1, and as can be seen in the cross-sectional view of FIG.
A tip handling part 3a is left on the distal end side of the unit operating piece 3, which is arranged opposite to each other, to form a sandwiching part C in which the semen pool 2 can be housed, and this part is attached to the inner surface of the unit operating piece 3. In the width direction of the operation piece 3, the inner surfaces of the unit operation pieces 3 are welded to each other by spot welding or the like while being separated for a certain period of time, so that the inner surface of one unit operation piece 3 and the inner surface of the other unit operation piece 3 are welded to each other by spot welding or the like in the width direction of the operation piece 3. A clamping part C is formed so that the inner surfaces of the unit operation pieces 3 can come into contact with each other, and the semen reservoir 2 of the condom 1 is inserted into the clamping part C and exposed.

In FIG. 2, the arrow portions are explanatory arrows indicating the welding operation on both sides of the unit operation piece 3 of FIG. Both ends of the base of the semen reservoir 2 are welded to each other so as to face each other.

The unit operation pieces 3 are mutually connected to each other at the upper part C.
By winding the proximal end of the operating piece 3, which is welded to form a free end at the lower part, into the main body of the condom as shown in FIG. 2, each tip of the unit operating piece 3 can be handled. The parts 3a are set to open outward from each other,
Moreover, in this open state, the welding points on both sides of the holding part C are welded with the upper inner surface of the unit operating piece 3 facing each other, so the tip handling part 3a is in a state where a force that tends to rise upward remains. will be formed. What is shown in FIG. 5 and FIG. 6 is a perspective view and a partially enlarged view of this operation piece 3, and the operation piece 3 shown in FIG. 5 has its upper end and lower end shaped like mirror blades. T, and the inner surfaces of the unit operation pieces 3 are attached to each other with a certain distance in the width direction of the unit operation pieces 3 to form a supported part C while leaving the tip handling part 3a on the tip side. It is something. The contact state between the inner surfaces of the unit operating pieces 3 in this welded state can be understood in detail from the explanatory diagram of FIG. 6, particularly from the aspects indicated by arrows. Since the inner surfaces of the unit operation pieces 3 are welded to each other at the settling point, the tip handling portion 3a is formed in a slightly upright state as shown in FIG. C maintains contact with each other as surfaces.

If the semen reservoir 2 of the condom 1 is inserted into the clamping part C of the operating piece 3 as shown in FIG. Because it is inserted inside, even if the proximal end 3c of the operating piece 3 is wrapped around the main body of the condom 1 in the state shown in Fig. 1 and packaged, fluid may accumulate during the process or during use. This prevents the two parts from falling off from the holding part C of the operation piece 3.

In particular, since a lubricant is often coated or adhered to the inner surface of the two semen reservoirs, if the clamping force in the holding part C is small, it may cause problems in the packaging process or other handling process parts of the condom 1. There is a risk that the condom 1 may be defective if it comes out of the holding part C, but by using the operation piece 3 having such a holding part C, the semen pool 2 can be held without this problem. A condo that ensures
In addition to the operation piece 3 that holds this sap reservoir 2, it also serves as a means to distinguish between the front and back sides when using this condom. That is, by simply applying the lower surface of FIG. 1 to the object to be attached and peeling off the tip handling portion 3a in the left-right direction in the figure, the welding points of the unit operation pieces 3 are mutually severed, and the base end of the operation piece 3 is separated. 3c is wrapped around the main body of the condom 1, the condom 1 can be completely and easily put on simply by further peeling off the tip handling part 3c.

Further, as described above, since the inner surfaces of the tip handling portion 3a are welded together, the tip handling portion 3a tends to stand up a little, so it is extremely easy to hold the tip handling portion 3a during installation.

Although it is convenient to use a thermoplastic synthetic resin sheet as the material for the operating piece 3, it is also possible to use a nonwoven fabric laminated with a thermoplastic resin on one side as appropriate.

Next, in the case shown in FIGS. 3 and 4, the tip handling portion 3a of the embodiment shown in FIG. 1 is set slightly longer.
This is folded back to form the holder C, and at the same time is adhered to one piece during welding, so that it is large enough to be easily handled when using the tip handling part 3b, and its rising state is not too high. , and has a beautiful appearance.

Therefore, the condom shown in FIGS. 3 and 4 can be easily put on by pulling the condom away from each other using the tip handling portion 3b, similar to the condom shown in FIG. 1. Next, such a condom 1 according to the present invention can be manufactured by the following process example.

That is, as explained in the process diagram of FIG. 7, two heat-weldable sheets F, such as sheets of thermoplastic synthetic resin or nonwoven fabric laminated with thermoplastic resin, are polymerized and formed into strips by unit operation. In order to create the piece 3, after performing the process of making discontinuous cuts S or continuous cuts (not shown) as shown in the illustration, then the 3 parts of the rectangular unit operation piece formed by the process of making the cuts S are After leaving the tip handling part 3a on one side and performing spot welding to form the clamping part C while spaced apart at a constant interval in the width direction, unit operation is performed from the base sheet F created in the above process. After going through the process of separating the piece 3, attach the handle part C of the operating piece 3 to the
The operation piece 3 made in the above process is placed over the outer side of the condom covered with the support member 5 shown by , from the solid line state to the imaginary line state in the figure. This condom is manufactured through a step of inserting the semen pool 2 of the covered condom 1, and finally a step of rolling the proximal end 3c of the operating piece 3 into the condom body.

In addition, in this manufacturing process, when giving the side edge of the operation piece 3 a saw-toothed edge green as shown in FIGS. 1 and 2, the seventh
It can be formed by simultaneously cutting the side edges of each base material sheet F in one piece as shown in the example shown in the illustration in the step of making the cuts S in the figure. In order to form it in this state, when spot welding is performed in the step of forming the holding part C in FIG. 7, the tip side of the base sheet F may be folded back and spot lacquered (not shown).

Therefore, by obtaining such a manufacturing method, it is possible to securely hold the semen pool as shown in Figs. 1 and 3 above, and it is easy to distinguish between the front and the back, and it can be attached with one touch during use. Furthermore, the operating piece 3 is slightly raised for easy handling, and the operating piece 3 of this condom and its assembly can be easily manufactured and mass-produced.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of a first embodiment of the condom according to the present invention, FIGS. 3 and 4 are explanatory diagrams of other embodiments,
FIG. 5 is an explanatory perspective view of the operation piece, FIG. 6 is an enlarged explanatory view of the holding portion of FIG. 5, and FIG. 7 is an explanatory view showing the manufacturing process of the present condom. 1...condom, 2...semen pool,
3... Unit operating piece, 3a, 3b... Handling section, 3c... Base end portion, 5... Supporting member. C... Holding part, F... Sheet, Day...
... Spot welding point, S ... Cut, T ...
... Serrated part. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Scope of Claims] 1. A unit operating piece consisting of a condom having a semen reservoir at the tip and two band-shaped sheets of thermoplastic synthetic resin or the like arranged opposite to each other, with a tip handling portion left on the distal end side of the unit operating piece. an operating piece formed by welding the inner surfaces of the unit operating pieces to each other while being spaced apart for a certain distance in the width direction to form a planar holding part in which the semen pool can be housed; A condom characterized in that the semen reservoir of the condom is housed in the surface holding part of the operating piece, and is wrapped around the condom body at the proximal end of the operating piece. 2. A step of making continuous or discontinuous cuts in order to polymerize two heat-weldable sheets to create a strip-shaped unit operation piece, and a part of the strip-shaped unit operation piece formed by the cuts. a step of forming a gripping portion by spot welding the tip handling portion on the side and spaced apart at a constant interval in the width direction; a step of cutting the operating piece from the base sheet created in the step; A method for manufacturing a condom, comprising the steps of inserting the semen pool of the condom into the clamping part, and rolling the proximal end of the operating piece into the condom body.