JPH0131065Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a strap length adjuster including a round cord.

``Prior Art and its Problems'' This type of strap is widely used to hang and hold various portable items such as cameras, radios, and binoculars. The strap is generally secured to the item at both ends, and the middle portion is carried in the hand or worn over the shoulder. Therefore, it is desirable to be able to adjust the effective length depending on the manner in which it is used, and various length adjusters have been used in the past. However, conventional products generally have a problem in that those with reliable locking have complicated structures, while those with simple structures have weak strap locking force, resulting in the strap loosening once the length has been adjusted.

``Purpose of the invention'' The purpose of the invention is to solve the problems of conventional products and to provide a strap length adjuster that has an extremely simple structure and can provide a strong strap locking force. .

``Summary of the invention'' The invention has a simple structure in which a pair of strap insertion holes are bored in the adjuster block, and by devising the direction of the pair of insertion holes, a strong strap locking force can be achieved. the pair of strap insertion holes are arranged close to each other at the open end of one side of the adjuster block;
They are characterized in that they are fixedly provided at an angle so as to be spaced apart from each other at the open end on the other side, and are in frictional contact with the strap.

``Embodiments of the invention'' The invention will be described below with reference to illustrated embodiments. 1 to 4 show a first embodiment of the present invention, in which an adjuster block 10 is connected to a pair of legs 1.
It is approximately L-shaped with numbers 1 and 11. Strap insertion holes 12, 12 are formed in the leg portions 11, 11 substantially perpendicularly to the respective wall surfaces. If you can drill the strap insertion holes 12, 12 like this,
Both axes are inclined to each other at the same angle as the angle α of the legs 11,11. That is, the pair of strap insertion holes 12 are connected to the adjuster block 10.
They approach each other at one open end 12a, and separate from each other at the other mouth end 12b.

The shape of the strap insertion hole 12 is made to match the cross-sectional shape of the strap S to be inserted through it. That is, if the strap S has a flat plate shape in cross section, the insertion hole 12 should be shaped like a long hole as shown in FIGS. 1 to 4.
If the cross section is circular, it is configured in a circular manner. When the direction of the strap insertion hole 12 matches the direction of the strap S, the strap S can be slid against the adjuster block 10 (strap insertion hole 12), but the strap S can be slid against the strap insertion hole 12. When bent, the cross-sectional shape is set so that the strap S does not slip against the adjuster block 10 due to the frictional force acting between the edge of the strap insertion hole 12 and the strap S. The chain line in FIG. 1 indicates the circular insertion hole 12.

This adjuster with the above structure inserts a series (one) strap S into one of the strap insertion holes 12 from the open end 12a on the side with a narrower gap, takes it out from the open end 12b on the side with a wider gap, and inserts the loop R. After making it, it is inserted through the open end 12b of the other strap insertion hole 12 and taken out through the open end 12a. Then, both ends of the strap S are fixed to the carried item H. FIG. 5 shows an example in which the protruding ends of the strap S from the adjuster block 10 are fixed together to the carrying item H, and FIG. 6 shows an example in which they are fixed to the carrying item H separately.

When the adjuster block 10 with the strap S inserted therethrough is held by the bottom of the loop R or hung on the shoulder, the strap S is bent at an acute angle immediately after exiting the open end 12a of the strap insertion hole 12. Therefore, a large frictional force acts between the edge of the open end 12a and the strap S, so that the adjuster block 10 does not move relative to the strap S.

When adjusting the effective length of the strap S, the direction of the strap S is oriented in the same direction as the strap insertion hole 12, and the two are moved relative to each other. Thereafter, by bending the strap S as shown in FIGS. 5 and 6, the adjuster block 10 and the strap S are fixed again. Therefore, the effective length between the fixed ends of the strap S relative to the carried item H can be freely adjusted.

7 and 8 show another embodiment of the present invention, in which a flat block is used as the adjuster block 10. FIG. Strap insertion hole 1
2 is the same opening as in the first embodiment and is bored therein. According to this embodiment, a length adjuster with a simpler shape can be obtained.

``Effect of the invention'' As described above, the length adjuster of the present invention has a very simple structure in which the pair of strap insertion holes that can be drilled in the length adjustment block are inclined with a certain opening relative to each other. The effective length of the strap can be adjusted. Therefore, it is possible to obtain a length adjuster that has a simple structure and is inexpensive, yet provides reliable locking force.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the length adjuster of the present invention, so Figure 1 is a perspective view, Figure 2 is a front view, Figure 3 is a plan view, and Figure 4 is a side view. be. Figures 5 and 6 are front views showing the state of use, Figure 7,
FIG. 8 is a perspective view and a front view of another embodiment of the present invention in use. 10...adjuster block, 11...leg, 12
...Strap insertion hole, S...Strap, H...
...Items to carry.

Claims (1)

[Claims for Utility Model Registration] (1) A pair of strap insertion holes are provided in the adjustment block, and the pair of insertion holes are close to each other at the open end of one side of the adjustment block and close to each other at the open end of the other side. 1. A strap length adjuster characterized in that the strap length adjuster is fixedly provided in an inclined manner so as to be spaced apart from each other at the side opening ends, and is in frictional contact with the strap. (2) In claim 1 of the utility model registration claim, the adjuster block has a substantially L-shape with a pair of legs, and the pair of insertion holes are formed at substantially right angles to each of the legs. Perforated strap length adjuster. (3) In claim 1 of the utility model registration claim, the adjuster block is a length adjuster for a strap in the form of a flat plate.