JPH039693Y2 - - Google Patents

Description

[Detailed explanation of the idea] <Industrial application field> The present invention relates to a condom.

<Prior art and problems> Conventionally, this type of product has been provided with a large number of independent protrusions or protrusions on the inner surface of the body, or a convex stepped part in the form of a design, or a convex fine line pattern such as a geometric or pattern. However, the tightening force was insufficient and the effect of preventing it from falling off was not sufficient.

<Means for solving the problem> In view of the above-mentioned circumstances, the present invention was devised for the purpose of preventing the device from falling off, and its means include providing a large number of protruding rings at appropriate intervals on the inner surface of the trunk of the main body. , the lower space is narrower.

<Function> In the present invention, a large number of protruding rings function as a tightening rubber band, and the tightening force becomes stronger as the spacing becomes narrower.

<Example> An example of the implementation of the present invention will be explained with reference to the drawings.The condom main body A is of a form well known in this kind of technical field. (without limitation) are protruded from the same body at appropriate intervals, and the intervals are wide in the upper part and narrow in the lower part. be.

A large number of protruding rings 1 are provided circumferentially protruding from the inner surface of the trunk of the main body A, and the spaces between the protrusions at the top are wide, and the spaces between the protrusions at the bottom are narrow. In this case, the width may be gradually narrowed overall from the top to the bottom, or the width may be gradually narrowed from the top to the middle, and the width below it may be narrow at approximately equal intervals, or conversely, the width may be wide at approximately equal intervals up to the middle. It is optional to gradually make the area below that narrower, or simply make the upper part a larger band-like group and the lower part a smaller band-like group, so that the upper part is relatively wide and the lower part is narrow and dense. It's a good thing to have.

Further, on the surface of these protruding rings 1, a satin-like minute unevenness pattern 2 can be formed by, for example, a pattern formed by sandblasting the corresponding part of the manufacturing mold. In that case, it is up to you whether to form it on all the protrusions or on appropriate protrusions. For example, form it on a group of protrusions below the approximate center (up to 20 protrusions from the bottom in the drawing) to improve the anti-slip effect. It can be made bigger.

Furthermore, it is also possible to form an animal, plant, or other arbitrary pattern on the condom manufacturing mold by any method such as corrosion, and to form a corresponding pattern on the body of the main body A in a rough surface. It is.

<Effects> This invention has a large number of protruding rings arranged at appropriate intervals on the inner surface of the body of the main body, and the lower spaces are narrower, so the downward tightening force is large and the ring is tightly tightened during use. It does not fall off, and since the surface of the protruding ring has minute irregularities formed in a matte finish, it is anti-slip and has an even more effective falling-off prevention effect.

[Brief explanation of the drawing]

The drawings show one embodiment of the condom of the present invention, and FIG. 1 is a front view with a portion cut away. FIG. 2 is a partially enlarged view, and FIG. 3 is a sectional view taken along the line 3-3, where A is the condom body and 1 is a protrusion ring.

Claims (1)

[Scope of utility model registration request] A condom in which a large number of protruding rings are provided at appropriate intervals on the inner surface of the trunk of the main body, the lower intervals are narrow, and a satin-like fine uneven pattern is formed on the surface of the rings.