A boat seat is pivotably hingedly attached along a line parallel to its front edge to a supporting member spaced below the boat seat with shock-absorbing resilient padding located in the spacing between the underside of the boat seat and the supporting member. Preferably the padding is slidably adjustable and also can be removed and replaced with padding of different durometers as necessary for differing conditions.

Inertia-offset vehicle ride damper

Boat seat shock absorber

A seating assist device including a base member, a seat member for receiving a person to a seated position, a main spring for simultaneously acting as a hinge between the base member and the seat means, and exerting a resilient force biasing the seat member away from the base member, and an arrangement for adjusting the resilient force of the main spring including at least one helper spring sized for close fitting relation with the main spring. An adjustable spring assembly having a main spring with a generally C-shaped portion, at least one helper spring sized for close fitting relation with the main spring for varying the resilient force of the assembly, and means for securing the helper spring to the main spring including a pair of guides on opposite ends of the C-shaped portion and a pair of corresponding grooves on the helper spring for frictionally contacting the guides when the helper spring is manually inserted within the C-shaped portion, is also disclosed.

Seating assist device with adjustable spring assembly

A variable shock absorbing compressional mounting apparatus. The apparatus includes a housing assembly having first and second housing portions, with the second housing portion being operable to move slidably partially inwardly and outwardly relative to the first housing portion, and a cylindrical, elongated elastomer member having a cylindrical, serpentine-shaped spring therein disposed coaxially within said housing assembly. The elongated elastomer member and elongated serpentine-shaped spring operate cooperatively to provide damping characteristics which vary with the compressional and tensional forces exerted on the elastomer member. When the apparatus is secured to two structures moving towards and away from each other in an oscillatory fashion with varying force, the apparatus operates to dampen the oscillatory motions of the structures in accordance with a first damping characteristic until a predetermined force is reached. At this point the elastomer member/serpentine spring combination provides a second damping characteristic which allows for less damping of the oscillating movements of the structures to which the apparatus is secured. The apparatus is particularly well-suited for such applications as mounting motors, engines and other like-vibration inducing structures to frame-like structures. The apparatus provides the further advantage of significantly attenuating vibrational noise normally otherwise transmitted to the frame-like member to which it is attached.

Inertia-offset vehicle ride damper

Citations

Boat seat shock absorber

Seating assist device with adjustable spring assembly

Shock absorbing compressional mounting apparatus

References

Vibration isolation mount

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