PROBE

PROBE

To provide a probe which ensures a desired stroke amount and needle pressure, and minimizes creeping and breakage of a needle even when a coil spring diameter is reduced.SOLUTION: A probe comprises a core material 3, and a coil spring 22 having one end thereof fixed or locked to the core material 3...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: NAGATA KAZUSHI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SEMICONDUCTOR DEVICES
TESTING
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Beschreibung
Zusammenfassung:To provide a probe which ensures a desired stroke amount and needle pressure, and minimizes creeping and breakage of a needle even when a coil spring diameter is reduced.SOLUTION: A probe comprises a core material 3, and a coil spring 22 having one end thereof fixed or locked to the core material 3 and the other end fixed or locked to another member. The coil spring 22 is stiffer at the one end and the other end thereof than in a middle section 22b.SELECTED DRAWING: Figure 2 【課題】 所望のストローク量と針圧とを確保しつつ、コイルばねの径を細くした場合であっても、クリープや針折れが生じるのを抑制することができるプローブを提供する。【解決手段】 芯材３と、軸方向において、一方の端部が芯材３に固定又は係止され、他方の端部が他の部材に固定又は係止されるコイルばね２２とを備える。コイルばね２２は、一方の端部及び他方の端部の剛性が中間部２２ｂの剛性よりも大きい。【選択図】 図２