JPH0542732Y2 - - Google Patents

Description

[Detailed description of the invention] ``Purpose of the invention'' The present invention relates to the invention of a tightening member that is simple and strong, and can be opened and closed as needed at the opening of a bag or other container, or the opening of a diving suit. The object of the present invention is to provide a tightening member that can be tightened to effectively and stably form a watertight state, and that can be easily released.

Industrial applications A means of tightening openings such as openings in diving suits.

BACKGROUND OF THE INVENTION Conventionally, a commonly used means for tightening the opening of a bag or other container so that it can be properly opened and closed is tying with a string or the like. Note that occlusion using a fastener or the like is also performed.

Furthermore, in Japanese Utility Model Publication No. 47-5866, a rubber round string is inserted into a hole formed in the center of a metal plate, and a locking hole is punched out on the side of the hole to be slightly smaller than the outside diameter of the rubber round string. It has been proposed to provide a continuous hole in the hole.

Utility Model No. 14-15231 discloses that a piece of elastic rubber is filled in a small cylinder made of a strong material such as metal, and a string is inserted through the small hole.

Furthermore, in Utility Model Application No. 55-43449, a slider is inserted into a cylindrical body provided on a decorative piece with both ends of the string aligned, and is slid along the long groove of the cylindrical body and compresses and fixes the string. positioning the pressing part between both ends of the string, and fixing the string inserted as described above by moving the slider;
Or it has been announced that he will be released.

Problems to be Solved by the Invention Although tying with a string can be said to be the simplest method of tying with a member, it is not possible to form a tight state of tying. In other words, even if a tight state can be created by closing the opening of the container and strongly pulling both ends of a string such as a cord wrapped around the container, the strong tension during the tying operation Since the force cannot be maintained, the tight state loosens. Even if it is closed with a fastener or the like, it cannot be tightened to maintain strong watertightness.

Of course, it is possible to form a fusion seal on a resin bag or the like, but in this case, it is not possible to open the seal appropriately and load/unload the contents.

In particular, the opening for diving clothing is large enough to allow the human body to enter and exit, and the diving suit has a thickness of 3 mm or more to ensure watertightness under water pressure conditions at the bottom of water exceeding 10 m in depth. Since it is made of rubber sheet material, it is extremely difficult to seal and close such loading/unloading ports, and there is a high possibility of water intrusion, so a special and sophisticated sealing method must be used. In addition, in the case where such a sophisticated tightening sealing method is adopted, the sealing operation is complicated and it is difficult to easily and accurately obtain the desired tightening seal during diving or the like.

In the above-mentioned Utility Model Publication No. 47-5866, a thin metal plate is basically used, and a round rubber cord is compressed and fastened through a slightly small diameter locking hole provided in the thin metal plate. Because of this, the range of compression fastening is limited to the thickness range of the thin metal plate, and stable fastening cannot be obtained when a strong tensile force is applied to the round string due to the elasticity of the round string. First, a stable sealing relationship cannot be formed in a diving suit where water pressure is constantly applied.

In the case of Jitsukōdai 14-15231, the string is inserted through a small hole made in a piece of rubber, so when a tensile force that exceeds the elasticity of the rubber is applied to the string, it easily slides, resulting in stable tightening. can't get it.

In addition, in the case of Utility Model Application No. 55-43449, it is necessary to perform tightening or releasing operations by moving the slider, and since it is intended to be fixed simply by pressing force, it cannot sufficiently cope with strong tensile force. .

"Structure of the invention" Means for solving the problem A stretchable tightening strip in which a stretchable covering layer of yarn is formed on a stretchable strip made of a plurality of rubber strips arranged in parallel, and the stretchable tightening strip. It consists of a rigid part provided with a plurality of insertion holes through which both ends of the strip are inserted in an expanded and contracted state, and the diameter of the insertion holes is 1/5 or less of the outer diameter of the stretchable tightening strip in its normal state. . A tightening member characterized in that the length of the rigid member is at least twice the diameter of the insertion hole.

Function: The elastic tension strip has a plurality of inner rubber strips arranged in parallel to provide sufficient stretching and contraction, and when a tensile force is applied, the elastic strip stretches. The gap between each rubber strip is closed to significantly reduce the diameter, and the outer surface is covered with a stretchable coating layer made of thread, which reduces friction when the rigid member slides against the insertion hole. It is possible to employ a stretchable strip that normally has a considerably large cross-sectional area relative to the insertion hole diameter under conditions where a tensile force is applied by manual operation. In other words, an elastic strip such as a rubber material becomes smaller in diameter by stretching, and becomes significantly expanded in diameter when it is released and restored, and the elastic coating layer covering the elastic strip has the above-mentioned elasticity. As the diameter of the flexible strip material decreases or expands, its circumferential surface is coated and integrated, and its engagement with the rigid member insertion hole is ensured in the expanded diameter state.

Since the diameter of the insertion hole of the rigid member is set to be 1.5 or less of the outer diameter of the elastic tension strip in its normal state, the elastic tension strip receives intensive pulling force from the operator. It can slide only when it expands and contracts in diameter, and if it does not reach this extent, even if the diameter of the elastic strip is reduced in a part of the insertion hole, the fixed and joined state will be maintained throughout the insertion hole. In particular, the enlarged tightening strip is locked on the edge of the insertion hole at the rear in the direction in which the tensile force is applied, and the sliding is accurately prevented.

That is, when a sufficient tensile force is applied intensively to the elastic tensioning strip, the opening of the container such as a bag can be accurately tightened due to the friction-reducing effect of the elastic coating layer. Only under such a concentrated tensile force can the rigid body slide and move to any position on the elastic strip; therefore, such a A tensile force is applied and the rigid member is caused to slide, and then such tensile force is relaxed to immediately restore the non-sliding state and maintain the above-mentioned tightened state.

Since the length of the rigid member having the insertion hole as described above is at least twice the diameter of the insertion hole, the length of the rigid member having the insertion hole as described above is appropriately reduced and slid within the insertion hole at least when the above-mentioned tensile force is applied. When the tensile force is released, a locking relationship is formed by the expanded diameter of the elastic striations in the entire area of the long rigid body, and even in a strongly tightened state, a stable fixed state is maintained at the moment the tensile force is released. can be formed into

Embodiments To explain the specific embodiments of the invention as described above shown in the attached drawings, the general structural relationship of the invention is as follows.
As shown in the figure, both ends of the elastic tension strip 1 are inserted into a plurality of insertion holes 21 provided in the rigid body 2, respectively.
A retaining portion 11 is formed at each end of the retainer. The elastic tension strip body 1 and the rigid member body 2 as described above
The relationship between the insertion holes 21 in the elastic strip 1 is as shown in FIG. Such a stretchable covering layer 13 is formed by braiding fiber threads, weaving them in a biased manner, or by using a material in which the threads themselves are stretchable. Alternatively, it is known that it can be appropriately obtained by using two or more means in combination.

The rigid body 2 can be formed of an appropriate material such as synthetic resin, metal, or ceramics, and the insertion hole 21 in the rigid body 2 is designed to accommodate the normal state (tensile force) of the elastic tension strip 1. At least its cross-sectional area is 1/1.5 of the thickness when it is not subjected to any
Below, the insertion hole 21 is preferably 1/2 or less, and such an insertion hole 21 is formed in the entire length direction of the rigid body 2 as shown in FIG. 1, and the length of this rigid body 2 is As shown in FIG. 1, the diameter of the insertion hole 21 is at least twice or more, and by inserting the elastic tension strip 1 through the insertion hole 21, tension is applied to the elastic strip 1. When no force is applied and at least the tensile force is considerably reduced, a considerable traction force is exerted at the middle portion of the elastic tension strip 1 on the left side of the rigid body 2 as shown in FIG. Even if the elastic striations 1
does not slide within the insertion hole 21, and is locked in place by reducing or releasing the tensile force.

That is, as shown in FIG. 3, a predetermined object is stored in a container 3 shaped like a bag or a wrapping cloth, and with the opening or peripheral portion 31 of the container 3 pulled close, the intermediate portion of the elastic tightening strip 1 is opened. By encircling the elastic tightening strip 1 and applying a tensile force greater than the above-described sliding force to the end of the elastic tightening strip 1, the strip 1 is expanded and reduced in diameter at least within the insertion hole 21. Therefore, it is slid inside the insertion hole 21 and pulled out, and by such pulling out, the mouth portion or peripheral portion 31 as described above can be sufficiently tightened. It is clear that such a tightening operation may be applied to both ends of the elastic tightening strip 1, but depending on the situation, it may be applied to either one of them.

That is, it is clear that even if the elastic tension strip 1 shown in FIG. If the sliding amount of the member 2 in the insertion hole 21 is doubled, as a result, the same tightened state as when both ends are slid under equal tensile force can be formed. This is extremely useful for actual tightening operations, as there is a limit to the tensile force that the operator can apply to both ends of the elastic tension strip 1 at the same time, and only one-half of the human effort can be applied to each end. However, if different human forces are applied, it is possible to apply twice the tensile force, and as a result, the tightening force acting on the mouth or peripheral portion 31 as described above is twice as much as the human force. It can be tightened to ensure sufficient watertightness or airtightness. If it is necessary to apply a larger tightening force, it is of course possible to use a pulley mechanism or a screw mechanism to apply a tightening tension force, thereby ensuring accurate watertight or airtight tightening. It can be done.

Therefore, the device according to the present invention can be fully employed for the purpose of tightening the body armor opening 5 in a diving suit 4 as shown in FIG.
Tightening that can ensure accurate watertightness even under conditions of diving to a depth of 20 m or more can be easily and precisely formed by pulling on one or both ends of the elastic tightening strip 1.

``Effect of the invention'' As explained above, according to the invention, since a stretchable tightening strip is used in which a rubber strip is provided with a stretchable coating layer made of threads, when a tensile force is applied, the elastic tension strip is used. Even if the insertion hole is relatively long, the elastic tension strip can be slid relatively easily between the elastic tension strip and the insertion hole in the rigid member by the tensile force, and the tensile force on the elastic tension strip can be By simply relaxing or releasing the thread, the slidable state is instantly released, and the engagement relationship of the threads via the stretchable coating layer is at least 2 times the diameter of the insertion hole.
It can be effectively formed in an insertion hole that is more than double the length, and a predetermined tightening state can be stably formed and maintained.
Therefore, it is possible to ensure sufficient watertightness as a tightening means for the loading/unloading opening of a diving suit, etc., and such a tightening state can be achieved simply by strongly pulling either one end or both ends of the elastic tightening strip. It has excellent effects such as being able to be easily released with the button, and is a device with great practical effects.

[Brief explanation of the drawing]

The drawings show embodiments of the invention,
FIG. 1 is a plan view showing the general structural relationship of the tightening member according to the present invention, FIG. 2 is a front view and side view partially showing the relationship between the rigid body and the elastic tightening strip, and FIG. 3 and 4 are explanatory diagrams showing the state of use of the product. In these drawings, 1 is an elastic tension strip, 2 is a rigid body, 3 is a housing body, 4 is a diving suit,
Reference numeral 5 designates the loading/unloading port, 11 a retaining portion, 12 a rubber strip, 13 an elastic covering layer made of yarn, 21 an insertion hole, and 31 a peripheral portion.

Claims (1)

[Scope of utility model registration request] Insert a stretchable tightening strip in which a plurality of rubber strips are arranged in parallel into a stretchable tightening strip in which a stretchable coating layer of yarn is formed, and both ends of the stretchable tightening strip in an expanded and contracted state. a rigid member provided with a plurality of insertion holes, the insertion hole diameter being 1/5 or less of the normal outer diameter of the elastic tightening strip, and the length of the rigid member being equal to the insertion hole diameter. A tightening member characterized in that the tension member is more than twice as large.