JPH0492680A - Buffer rope - Google Patents

Abstract

PURPOSE:To obtain the rope having a buffering property which can be used for a safety belt, etc., by constituting it so that it is buffered by a curved spring material, and thereafter, the spring material becomes prescribed length like a straight line. CONSTITUTION:The buffer rope is constituted so that a part of a band-like rope 1 is formed in a bag-like part, it consists of that which contains a pair of spring materials whose center part is curved and expanded to the outside in this bag-like part 2, and when its rope 1 is drawn, the spring material curved after being buffered by the curved spring materials becomes prescribed length like a straight line. That is, when the rope is drawn strongly by holding both its ends, the expanded spring material receives force in the direction being vertical to the axis center of the rope and extends in the axis center direction of the rope together with the bag-like rope material woven so as to be focused and executes a buffering action, and thereafter, the whole rope becomes prescribed length and does not extend further than it. In such a way, this rope can be used for a rope for safety in every case.

Description

[Detailed Description of the Invention] [Industrial Field of Application J The present invention can be used for safety belts, etc. that have cushioning properties and that initially have cushioning properties when used, and then remain at a predetermined length. This article relates to a rope with cushioning properties that can be used.

``Conventional technology'' Conventional ropes with 11 impact strength are made by installing coil springs at the ends for cushioning for non-stretchable ropes, or incorporating rubber material to add stretchability to the ropes themselves. There is also a type of braided rope made of rope so as to encompass a synthetic resin such as styrofoam or polyurethane with a spherical or elliptical cross section, or an elastic material such as hollow balloon-shaped rubber. A bag-like net or a cheaply knitted elastic robe was shown.

``Problem to be solved by the invention'' However, since the coil springs used for conventional rope buffering are made of steel, parts are required to attach them to the rope, making the structure complicated. ,and,
It had the economic disadvantage of being expensive. In addition, ropes using rubber hammers have the disadvantage of being weak in tensile strength against elongation. In any case, coil springs and rubber materials vibrate elastically and expand and contract due to the force of pulling the rope, so they cannot be fixed to a specified length, so they are used, for example, at car seat belt construction sites, factories, My father had the disadvantage that it could not be used as a safety belt while climbing. The present invention has been made with the object of providing a rope with cushioning properties that eliminates these drawbacks.

"Means for Solving Problem 11" In order to achieve the above object, the buffer rope of the present invention has a band-like rope with a part of the rope having a bag-like part, and a central part of the bag-like part curved outward. The log is composed of a pair of spring members that are swollen by the log, and when the log is pulled, the log is relaxed by the curved spring members and then curved, so that the original spring member becomes a straight predetermined length. This is what I did.

``Action'' Hold both ends of a rope with this structure and make a strong bow.
The spring material is stretched in the direction of the rope along with the bag-shaped rope material which is woven so that the palms join together under the force perpendicular to the direction of the rope, and after applying H& action, the spring material is stretched to a predetermined length. Either it becomes part of the rope, or it stretches along the bag-like rope until the entire rope reaches a certain length and can no longer be stretched.

"Example" An example of the buffer rope of the present invention will be described with reference to the drawings.

FIG. 1 shows a perspective view of the buffer rope of the present invention, and FIG. 2 shows a side view. A part of the band-shaped rope 1 is made into a bag-like part 2, and the central part is curved and inflated by following the inside of this bag-like part 2 or wrapping it with the bag-like part 2 (not shown). A pair of plate bis 3 is included, and the plate spring 60
Both 210-plates 1 or 210 are fixed to the bag-like part 2, or only both ends of the pair of plate holders 6 are fixed and housed in the bag-like part 2.

In this way, the buffer rope 4 is constructed by providing one or more bag-shaped portions 2 having the leaf springs 6 on the rope 1.

When the buffer rope 4 having such a configuration is pulled, the bag-shaped portion 2
While the pair of leaf springs 6, whose central portions are swollen, are being pulled and twisted, the elasticity of the leaf springs cushions the leaf springs 6, and the leaf springs 6 themselves stretch and become straight. It consists of a length.

Father, when a plurality of leaf springs 6 are used with different strengths, the leaf springs 6 can absorb forces in order from weak to strong, and li1! from impact. There is an advantage that works extremely effectively for iJ.

Although the above embodiment shows a case where a plate spring is used as the spring material 6, it is not limited to the plate spring, but other elastic materials such as synthetic resin materials such as styrofoam and polyurethane, and hollow balloon-shaped rubber can also be used. Of course, it is also possible to use material or elastic rubber material.

FIG. 3 shows another embodiment in which an elastic rubber material is used as the spring material.

``Effects of the Invention'' Conventional cushioning members attached to ropes have the drawback of elastic vibration, and the length of the stretch changes depending on the tension, so when used in car seat belts, the impact of a collision is large. However, the amount of elongation increases and the front gas is pierced, causing life-threatening injuries. My father could not use it as a safety rope at construction sites or factories when climbing ropes because of its vibrating nature, which caused the rope to bounce when suspended, but the buffer rope of the present invention has a central part facing outward Since the curved spring material has a buffering effect only within a certain length of stretch and has no vibration effect, it has the effect that it can be used as a safety rope in all of the above-mentioned cases.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the buffer rope of the present invention, FIG. 2 is a side view, and FIGS. 3 and 4 are views of other embodiments of the present invention. 1... Rope 2... Bag-shaped part 6... Leaf spring

Claims (1)

[Claims] It consists of a bag-like part provided in a part of a band-like rope, and a pair of spring members whose central part is curved outward, housed in this bag-like part, and when the rope is pulled, the curved spring members provide cushioning. A buffer rope constructed so that the curved spring material becomes a straight predetermined length after being bent.