Drag mechanism for fishing reels
阅读：608发布：2022-09-29
专利汇可以提供Drag mechanism for fishing reels专利检索，专利查询，专利分析的服务。并且A quick change spool adaptor and drag mechanism for placement on the spool shaft of a conventional spinning reel. The spool adaptor includes a large rear flange and forwardly extending spool receiving arbor axially bored to be received on said spool shaft. An axial counter-bore in the arbor is designed to receive a drag modular unit having friction means adjustably preventing spool rotation until a predetermined force is applied thereto. Frictional adjustment is achieved by rotation of a knob threaded on the tip of the spool shaft, the knob being of smaller diameter than the center spool opening to permit axial removal of the spool without affecting the drag adjustment. The drag modular unit includes a flanged core element slidable on but not rotatable relative to the spool shaft and supporting a series of friction disks some keyed for rotation with the spool adaptor while at least one other disk remains rotatably fixed. The disks are squeezed together with a force dependent on the axial position of the threaded knob. The spool rotates with the arbor and is axially retained thereon by suitable friction lugs.，下面是Drag mechanism for fishing reels专利的具体信息内容。
1. In a spinning reel: a. a spindle assembly having a central mounting shaft with means for receiving a line spool thereon, said shaft having a shank portion and a threaded tip portion; b. line receiving means mounted on said shaft and including a line spool comprising a central sleeve with first and second spaced apart edge flanges and a spool adapter extending generally radially inwardly of and axially between said flanges, a central bore extending through said spool adapter and a counter-bore formed therewithin to provide said spool adapter with forward and rearward generally radially disposed frictional surfaces, and a keyway having radial locking lug means being formed along the periphery of the arbor surface defining said counter-bore and extending axially within said counter-bore; c. line winding means adapted to engage line for controlled winding upon said line spool; d. arbor abutment means disposed on the shank portion of said mounting shaft and having a generally radially disposed abutment face for frictionally engaging said rearward frictional surface and for determining the axial and controlling the radial disposition of said spool mounting means; and e. drag module means for determining the axial forces applied to said frictional surfaces to control the torque required to rotate said spool upon said mounting shaft, said drag module means comprising: 1. a central core means for non-rotational mounting upon said mounting shaft and within said counter-bore and having a generally symmetrical drive shank with base flange at the rear thereof for frictional engagement with the forwardly disposed frictional surface, said symmetrical shank portion having a non-circular cross-section, the shank portion being arranged to receive a stack of frictional elements of generally annular disc configuration thereon, a base force applying member having its inner surface in contact with the outer exposed surface of the most outwardly disposed frictional element; 2. a first tension disc in said stack arranged for rotation about the axis of said drive shank and being disposed outwardly of said base flange and having a cooperating lug means lockingly engaged with the lug means formed in said counter-bore to provide for rotation of said tension disc with said spool adapter; 3. friction washer means in said stack mounted on said symmetrical drive shank and disposed outwardly of said base flange, said friction washer means being arranged for relative rotation about said drive shank and being fabricated from molded polytetrafluoroethylene; 4. an annular drag washer means in said stack arranged for arcuate rotation with said central core means and having an internal borE with an arcuate segment adapted to engage the non-circular cross-section of said symmetrical drive shank, and being disposed outwardly of said friction washer means and cooperating with said tension disc to clampingly engage said friction washer means therebetween; and 5. a drag adjustment knob threadedly engaged with the threaded tip portion of said mounting shaft, and adapted to controlably compress the components of said stack against said base flange means.
2. a first tension disc in said stack arranged for rotation about the axis of said drive shank and being disposed outwardly of said base flange and having a cooperating lug means lockingly engaged with the lug means formed in said counter-bore to provide for rotation of said tension disc with said spool adapter;
2. The apparatus as defined in claim 1 being particularly characterized in that said stack of frictional elements includes at least two tension discs and at least two drag washer means, with friction washer means interposed between each tension disc and drag washer interface.
3. The apparatus as defined in claim 1 being particularly characterized in that the symmetrical drive shank of said central core means has a generally hexagonal outer surface configuration.
3. friction washer means in said stack mounted on said symmetrical drive shank and disposed outwardly of said base flange, said friction washer means being arranged for relative rotation about said drive shank and being fabricated from molded polytetrafluoroethylene;
4. an annular drag washer means in said stack arranged for arcuate rotation with said central core means and having an internal borE with an arcuate segment adapted to engage the non-circular cross-section of said symmetrical drive shank, and being disposed outwardly of said friction washer means and cooperating with said tension disc to clampingly engage said friction washer means therebetween; and
4. The apparatus as defined in claim 1 being particularly characterized in that the lug means formed along the inner surface of said counter-bore is an axially extending keyway, and said cooperating lug means of said tension disc is a radially extending key.
5. The apparatus as defined in claim 4 being particularly characterized in that said tension disc has diametrically arranged keys thereon, and said counter-bore is provided with a pair of diametrically oppositely disposed keyways.
5. a drag adjustment knob threadedly engaged with the threaded tip portion of said mounting shaft, and adapted to controlably compress the components of said stack against said base flange means.
6. The apparatus as defined in claim 1 being particularly characterized in that locking means are provided for normally retaining said drag module means within said counter-bore.
7. The apparatus as defined in claim 1 being particularly characterized in that the forward most drag washer means is provided with at least one projection along the annular surface thereof, and cooperating notches are formed on the inner surface of said drag adjustment knob for locking engagement therewith.
8. The apparatus as defined in claim 1 being particularly characterized in that said spool adapter comprises a rear flange, with said counter-bore being formed in said spool adapter, and with the outer diameter of said drag adjustment knob being less than the outer diameter of the spool adapter.
9. The apparatus as defined in claim 1 being particularly characterized in that means are provided for audibly indicating relative rotation of said line spool and said mounting shaft.
10. The apparatus as defined in claim 8 being particularly characterized in that the outer periphery of said base flange means is serrated.
11. The apparatus as defined in claim 1 being particularly characterized in that lock ring means are provided to retain said drag module means within said counter-bore.
12. The apparatus as defined in claim 2 being particularly characterized in that each of said tension discs is bowed along its diameter.
13. The apparatus as defined in claim 1 being particularly characterized in that each active frictional surface of said drag means is provided with a surface layer of molded polytetrafluoroethylene at its interface.
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