| 摘要 |
The invention described relates to a downrigger line clamp mechanism used in downrigger fishing and includes an adjustable clamping force for adjusting the overall release tension of a fishing line. The pre-stressed line clamp mechanism includes a pair of pivotally engaged, elongate arms which, when assembled, are resiliently flexed such that one portion of the arms, the proximal grip portions, are outward bowed, the tips of the proximal grip portions pinching together, thereby biassing another portion of the arms, the jaws, towards a closed clamp position. The line clamp mechanism uses an adjustable compression-force biassing devic e movably mounted between the tips of the proximal grip portions of the arms. The biassing device may include spacers of different spacing dimensions, each spacer being positionable into an active position between the tips of the proximal grip portions of the arms by movin g the biassing device relative to the arms. The magnitude of clamping force at the jaws is adjustable by adjusting the spacing between the tips of the proximal grip portions of the arms.
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