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AssigneeBrunswick Corporation
InventorsDavid Jerry Hale, William B. Mayer, Delhardt K. Kollman
Estimating the term…
A power trim and shock absorbing system for outboard motors. A pair of combined trim positioning and shock absorber cylinder units are mounted within the side arms of a transom bracket assembly of an outboard motor. A manifold within the assembly coupled the units to a supply within the boat. A hydraulic manifold is pivotally mounted and attached to the lower end of the cylinder units with hose connections directly to lower side ends of the double walled cylinders to maximize the power stroke. The hose system includes passageways formed directly in the lower mounting bolts for the transom side members to minimize fluid leakage areas and damage to the boat transom. Down trim limit cams are pivotally located within the swivel assembly on a rotating rod and cooperate with aligned motor arms to set the minimum trim down position. A trailing bar is pivotally interconnected to the motor unit between the power cylinder units. An over-center control link is coupled to the bar by a spring. The transom bracket assembly is provided with a locking recess which is engaged by the outer end of the bar in the trailing position.
An outboard motor apparatus comprising a clamp bracket means, an outboard motor pivotally attached to the upper end of said bracket means and having a drive shaft housing extending in the rearof said bracket means, and a plurality of combined power trim actuating and shock absorbing piston-cylinder units mounted to the front of and in alignment with said housing between the bracket means and housing, each of said piston-cylinder units having a cylinder member and a piston member mounted in said cylinder member with a piston rod member extending outward, one member pivotally attached to said motor, the opposite member pivotally attached to the bracket means, each of said piston-cylinder units having shock absorbing means, and a hydraulic supply connection means connected to said shock absorbing piston-cylinder units to selectively position and hold the outboard motor in any one of a plurality of angular positions relative to said bracket means for trim positioning of the outboard motor during propulsion, said hydraulic supply connection means including a manifold coupled to and moving with said piston-cylinder units, said manifold having a plurality of supply ports connected by interconnecting passageway means within the manifold to a plurality of output ports, means for connecting the supply ports to a supply of hydraulic fluid, and means connecting said output ports to said piston-cylinder units for supplying a hydraulic fluid to said piston-cylinder units.
An outboard motor mounting apparatus, comprising a bracket means having a pair of vertical side bar members connected at the upper end by a motor pivot assembly for pivotally supporting a motor, a plurality of piston-cylinder power and shock absorbing means, each having a cylinder element and a piston rod element, and a bracket pivot support means including a pivot shaft means secured to the lower end of the side bar members and connected to one of said elements, the other of said elements having pivotal support means adapted to be secured to said motor adjacent the upper end of the side bar members, and a hydraulic manifold unit pivotally mounted on the bracket pivot support means between the lower ends of the elements and having a pair of supply ports and a plurality of pairs of output ports connected to said cylinder elements.
An outboard motor mounting apparatus, comprising a generally rectangular clamp bracket assembly having a pair of parallel vertical side bar members connected at the upper end by a motor pivot assembly, a motor swivel bracket pivotally attached to the upper end of the side bar members, tubular mounting bolts, passing through said side members, a pair of piston-cylinder power and shock absorbing means each having a cylinder element and a piston rod element and located in side-by-side spaced relation between said side members, a bracket pivot support means including a pivot shaft means secured to the lower end of the side members and connected to said cylinder elements, said piston rod elements having a motor pivotal support plate means adapted to be secured to said motor swivel bracket adjacent the upper end of the side members,
A combined power actuating and shock absorbing piston-cylinder unit, comprising a double wall cylinder defining a piston chamber and having an inner and an outer wall means spaced to form a transfer passage between said wall means, a supply closure head secured to one end of said cylinder and having an extended portion over the cylinder and having a first radial supply port in said extended portion having an input end for connection to a supply and an output end terminating in the transfer passage, said closure head having a pivot means axially outwardly of the cylinder, an outer plug head mounted within the opposite end of the cylinder from said supply closure head, said piston-cylinder unit having a piston in said piston chamber and movable between a retracted position adjacent the closure head and an expanded position adjacent the plug head, lateral passages between the transfer passage and the piston chamber at the inner face of said plug head, said supply closure head having an essentially flat inner face adjacent the piston in the fully retracted position of the piston, a second radial supply port in said supply closure head having a lateral passage at the inner face of said supply closure head for supplying liquid radially into the cylinder adjacent the inner face to produce maximum length of the cylinder between said closure head and plug head, wherein said piston comprises a valved piston unit in said piston chamber having a piston rod extended through a sliding seal means in said plug head.
In an outboard motor mounting apparatus a swivel bracket assembly having a pivotal motor support, a trailing locking mechanism including an elongated bar member pivotally mounted at one end to said motor support, a control linkage connected to said bar for manual positioning of the bar member, and a resilient means connected to said bar member and forming an over-center mounting of said bar member for holding said bar member in a retract release position adjacent the bracket assembly and in an extended latch position extending outwardly and downwardly from the bracket assembly.
In an outboard motor mounting apparatus having a clamp bracket assembly with depending side members, and including a trim stop means located between said side members of the clamp bracket assembly, said stop means including a stepped edge having a plurality of different sized steps, and including a positioning lever to the exterior of one side member for selective positioning of the stop means with one of said steps in the path of the clamp bracket assembly.
Dependencies are inferred from the claim text.