★★★ ＜知的財産翻訳検定＞答案用紙 ★★★
==================================================================科

目：機械工学氏

名：前原幹子==================================================================
What is claimed is:
1. A jig for measuring a resilient force of a coil spring, the jig comprising:a cylindrical holder;a guide pipe slidably mounted in the cylindrical holder, the guide pipe having
an inner diameter substantially equal to an outer diameter of the coil spring.
2. A jig according to claim 1, wherein the holder and the guide pipe have sliding
friction therebetween at such a resistance value as to prevent the guide pipe frommoving by its own weight alone.
Detailed Description of the Invention[0001]
1. Field of the Invention
The present invention relates to a jig for holding a coil spring in an upright position
during measurement of a specified load of the coil spring at a specified height.
[0002]
2. Description of the related art
A related art will be explained referring to FIGs. 6 and 7. Numeral 101 denotes ameasuring table of a spring load measuring device and a fixing pipe 112 is placed
thereon for fixedly holding a coil spring 111 in an upright position. The coil spring 111
is partially inserted in an internal hole 113 of the fixing pipe 112.

Numeral 114

denotes a load measuring part for measuring a specified load (a resilient force) of thecoil spring 111 when compressed to a specified height.
Problems to be solved by the Invention[0003]
However, the aforementioned related art has the following problems.

Specifically,

more than half of the coil spring 111 protrudes from the upper end of the fixing pipe 112.
In measurement, the coil spring 111 therefore may buckle at its middle portion, asviewed in FIG. 7, when the load measuring part 114 is moved down. This may resultin a measurement failure. In another possible specified load measurement on a coilspring at a high specified height, the fixing pipe 112 may be designed to be longer. In
another specified load measurement at a low specified height, in contrast, such longfixing pipe 112 cannot be used and the aforementioned problem would be caused
inevitably.

-1-[0005]
The guide member is allowed to slide with respect to the guide pipe, changing the heightof the jig. This makes it possible to reduce a protruding length of the coil spring fromthe upper end of the guide pipe regardless of the specified height of the coil spring to bemeasured and thus prevent the coil spring from buckling.
Description of Preferred Embodiment[0006]A cylindrical holder 1 made of a metallic material has an internal hole 2 in which a
guide pipe 3 is slidably mounted so that a clearance 4 is provided between the guidepipe 3 and the holder 1. The guide pipe 3, which is hollow, has a through hole 5 whose
diameter is substantially equal to the outer diameter of a coil spring to be measured.
Further, the guide pipe 3 is formed with peripheral grooves 6 and 7 extending above andbelow in the periphery thereof. Rubber O-rings 8 and 9 are fitted in those grooves 6and 7 respectively so as to make a contact with the surface of the hole 2 of the holder 1.
Owing to the contact force, the guide pipe 3 has such a sliding frictional force to theholder 1 as to prevent the guide pipe 3 from moving down by its own weight but allow it
to move down by a slight external force.

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