Drag apparatus for a fishing reel

A drag apparatus for a fishing reel comprising:

• a spool having a spool shaft;
• drive transmitting means for rotating said spool;
• a drag mechanism including a first contact member operatively connected to said spool, and a second contact member operatively connected to said drive transmitting means, said first and second contact members being contactable with each other to apply a drag force to said spool;
• drag force compensating means for varying a spacing between said first and second contact members in proportion to heat generated by said drag mechanism during use, thereby to compensate for variations of the drag force caused by the heat generated by said drag mechanism;
• wherein said drag force compensating means is operable, in response to the heat, to decrease the spacing between said first and second contact members, thereby to compensate for a decrease of said drag force caused by the heat;
• wherein said drag force compensating means includes an annular piston, and wherein said drag force compensating means includes a cutout formed in an inside wall of said annular piston, and a restrictor defining a stopper for engaging said cutout, said restrictor being mounted on said cylinder to define, when at normal temperature, a predetermined space between said stopper and a surface of said cutout extending perpendicular to the axis of said spool shaft, whereby said drag force compensating means provides a predetermined limiting position for the movement of said piston outwardly of said cylinder due to expansion of said oil caused by the heat conducted from said drag mechanism.

A drag apparatus for a fishing reel comprising:

• a transmission line including:
• a transmission line including:
• a spool,
• a spool shaft supporting said spool,
• a support member rotatable in unison with said spool shaft,
• a bracking member rotatable in unison with said support member, and
• a friction member rotatable in unison with said spool;
• and
• drag force compensating means provided separately from said transmission line;
• wherein a drag force generated between said spool shaft and said spool is adjusted by axially moving said spool to adjust a pressing force between said braking member and said friction member, and wherein said drag force compensating means is operable, in response to heat transmitted from said bracking member and said friction member, to increase said drag force, thereby to compensate for a decrease of said drag force caused by said heat.

A drag apparatus for a fishing reel comprising:

• a transmission line including:
• a spool,
• a spool shaft supporting said spool,
• a support member rotatable in unison with said spool shaft,
• a braking member rotatable in unison with said support member, and
• a friction member rotatable in unison with said spool;
• and
• drag force compensating means provided separately from said transmission line, said drag force compensating means including:
• an annular cylinder mounted in said spool, said cylinder being coaxial with said spool shaft and rigidly connected to said spool, said cylinder having an opening,
• an annular piston fitted in said opening of said cylinder, said piston being slidable axially of said spool shaft relative to said cylinder, and
• oil contained between said cylinder and said piston;
• and
• wherein a drag force generated between said spool shaft and said spool is adjusted by axially moving said spool to adjust a pressing force between said braking member and said friction member;
• and
• wherein said piston is pushed outwardly relative to said cylinder by expansion of said oil caused by heat transmitted from said braking member and said friction member during use, to increase said pressing force between said friction member and said braking member, thereby to compensate for variations of the drag force.

A drag apparatus for a fishing reel comprising:

• a transmission line including:
• a spool,
• a spool shaft supporting said spool,
• a support member rotatable in unison with said spool shaft,
• a bracking member rotatable in unison with said support member,
• a friction member rotatable in unison with said spool;
• and
• drag force compensating means provided separately from said transmission line, said drag force compensating means including:
• a piston,
• a cylinder provided to said spool, and
• a restrictor mounted on said cylinder, said restrictor including a stopper engageable with said cylinder, a predetermined space being formed between said stopper and said cylinder at normal temperature;
• wherein a drag force generated between said spool shaft and said spool is adjusted by axially moving said spool to adjust a pressing force between said braking member and said friction member;
• and
• wherein said drag force compensating means is operable, in response to heat transmitted from said braking member and said friction member, to increase said drag force, thereby to compensate for a decrease of said force caused by said heat;
• and
• wherein said restrictor restricts movement of said piston outwardly relative to said cylinder caused by expansion of said oil due to said heat.