초록

Apparatus for cutting baitfish employing a non-symmetrically arcuate biasing member for angularly articulating a baitfish against a plurality of blade surfaces. In certain embodiments, apparatus having an improved lever arm with increased mechanical advantage.

대표청구항 ▼

Apparatus for cutting baitfish employing a non-symmetrically arcuate biasing member for angularly articulating a baitfish against a plurality of blade surfaces. In certain embodiments, apparatus having an improved lever arm with increased mechanical advantage. bypass passage. 11. A hydraulic tilt d

Apparatus for cutting baitfish employing a non-symmetrically arcuate biasing member for angularly articulating a baitfish against a plurality of blade surfaces. In certain embodiments, apparatus having an improved lever arm with increased mechanical advantage. bypass passage. 11. A hydraulic tilt device as set forth in claim 10 wherein said relief valve is formed at an exchangeable member that can be detached from hydraulic tilt device. 12. A hydraulic tilt device as set forth in claim 11 wherein at least one of said first and second chambers has an opening closed by a plug, and said exchangeable member includes said plug. 13. A hydraulic tilt device as set forth in claim 1 additionally comprising an accumulator provided separately from said cylinder, wherein said accumulator has an accumulator chamber communicating with said first chamber and containing the volume of gas. 14. A hydraulic tilt device as set forth in claim 13 wherein said accumulator is unitarily formed with said cylinder. 15. A hydraulic tilt device as set forth in claim 13 wherein said first and second chambers are filled with the working fluid. 16. A hydraulic tilt device for a marine outboard drive comprising a cylinder, a piston slidably supported in said cylinder and defining a first chamber and a second chamber in said cylinder, a working fluid being contained in said first and second chambers, a piston rod extending from said piston through said first chamber, a passage disposed outside of said piston and joining said first and second chambers together, a switchover valve disposed in said passage for switching said passage between a communication state and a non-communication state, a contained volume of gas arranged to pressurize the working fluid in said first chamber when said passage is in the non-communication state, means for permitting flow of the working fluid from said second chamber to said first chamber when said passage is in the non-communication state and a pressure greater than a predetermined magnitude occurs in at least a portion of said second chamber, and a floating piston supported slidably in said second chamber and dividing the second chamber into one space and another space, said means for permitting flow of the working fluid including a relief passage disposed in said floating piston and communicating with said one space and said another space, said relief passage having a relief valve for permitting flow of the working fluid from said another space to said one space when said passage is in the non-communication state and a pressure greater than a predetermined magnitude occurs in said another space, and said means for permitting flow of the working fluid having an adjustment mechanism for adjusting a sensitivity of said relief valve. 17. A hydraulic tilt device for a marine outboard drive comprising a cylinder, a piston slidably supported in said cylinder and defining a first chamber and a second chamber in said cylinder, a working fluid being contained in said first and second chambers, a piston rod extending from said piston through said first chamber, a passage disposed outside of said piston and joining said first and second chambers together, a switchover valve disposed in said passage for switching said passage between a communication state and a non-communication state, a contained volume of gas arranged to pressurize the working fluid in said first chamber when said passage is in the non-communication state, means for permitting flow of the working fluid from said second chamber to said first chamber when said passage is in the non-communication state and a pressure greater than a predetermined magnitude occurs in at least a portion of said second chamber, and a floating piston supported slidably in said second chamber and dividing the second chamber into one space and another space, said means for permitting flow of the working fluid including a relief passage disposed in said floating piston and communicating with said one space and said another space, said relief passage having a relief valve for permitting flow of the working fluid from said another space to said one space when said passage is in the non-communication state and a pressure greater than a predetermined magn