Boat lift
A boat lift with at least one tank or tube configured to receive air and a bunk support frame coupled to the tube. A torque bar is supported by the bunk support frame and operable to rotate with respect to the frame. A pair of arms are mounted to opposite ends of the torque bar. The bunk support frame may define a channel accessible through first and second openings at ends of the frame with the torque bar extending through the channel. The arms may each include a first end mounted to the torque bar and an adjustable second end for mounting to the dock. A bunk assembly may mount a bunk to the bunk support frame. The bunk assembly including a pair of sections joined with a tab and slot on one side and fasteners on another side. A clamp assembly may mount a tank frame to the tank.
1 . A boat lift comprising:
at least one tube configured to receive air;
a bunk support frame coupled to the tube, the bunk support frame defining a channel accessible through a first opening at one end of the bunk support frame and a second opening at an opposite end of the bunk support frame;
a torque bar extending through the channel from the first opening to the second opening, the torque bar supported by the bunk support frame and operable to rotate with respect to the bunk support frame;
a pair of arms mounted to opposite ends of the torque bar, the arms configured for mounting to a dock; and
a bunk coupled to the bunk support frame and configured to support a boat.
2 . The boat lift of claim 1 , wherein the bunk support frame further comprises first and second support bushings that are at least partially received by the first and second openings, respectively, the torque bar extending through and supported by the first and second support bushings.
3 . The boat lift of claim 2 , wherein the pair of arms define a second channel that receives the torque bar, wherein at least a portion of each of the arms is received within the channel, and wherein each of the arms is positioned between the torque bar and one of the first or second support bushings.
4 . The boat lift of claim 3 , wherein each of the arms is mounted to the torque bar with at least one set screw.
5 . The boat lift of claim 1 , wherein the torque bar comprises end surfaces each positioned at one of the opposite ends, each end surface defining at least one threaded opening, and wherein each of the arms is mounted to the torque bar with at least one fastener that extends through an opening in the arm and engages the threaded opening of one of the end surfaces.
6 . The boat lift of claim 5 , wherein each of the arms defines a receptacle that receives one of the ends of the torque bar.
7 . The boat lift of claim 1 , wherein each of the arms comprises a first section and a second section that is adjustably coupled to the first section, the first section mounted to one of the ends of the torque bar, and the second section configured for mounting to the dock.
8 . The boat lift of claim 7 , wherein the second section comprises a first end that is mounted to the first section and a second end that is configured for mounting to the dock, wherein the second section is adjustably coupled to the first section so that the second end is adjustable in a direction that is generally aligned with a longitudinal axis of the torque bar.
9 . The boat lift of claim 8 , wherein the second section defines a slot positioned between the first end and the second end, wherein a fastener extends through the slot and at least one opening of the first section.
10 . The boat lift of claim 8 , wherein the second end of the second section has a spherical bearing configured to receive a fastener for mounting the second section to the dock.
11 . The boat lift of claim 1 , further comprising:
a second bunk support frame coupled to the tube, the second bunk support frame defining a second channel accessible through a third opening at one end of the second bunk support frame and a fourth opening at an opposite end of the second bunk support frame, wherein the bunk is coupled to the second bunk support frame;
a second torque bar extending through the second channel from the third opening to the fourth opening, the second torque bar supported by the second bunk support frame and operable to rotate with respect to the second bunk support frame;
a second pair of arms mounted to opposite ends of the second torque bar, the second pair of arms configured for mounting to the dock; and
first and second stabilizers each mounted to one of the pair of arms and one of the second pair of arms.
12 . The boat lift of claim 1 , wherein the bunk support frame encloses a portion of the torque bar that is positioned within the channel.
13 . A boat lift comprising:
at least one tube configured to receive air;
a bunk support frame coupled to the tube;
a bunk coupled to the bunk support frame and configured to support a boat;
a torque bar supported by the bunk support frame and operable to rotate with respect to the bunk support frame; and
a pair of arms mounted to opposite ends of the torque bar, wherein each of the arms comprises a first end mounted to the torque bar and a second end configured for mounting to a dock, wherein the second end of at least one of the arms is adjustable with respect to the first end in a direction that is generally aligned with a longitudinal axis of the torque bar.
14 . The boat lift of claim 13 , wherein each of the arms comprises a first section and a second section that is adjustably coupled to the first section, the first section mounted to one of the ends of the torque bar, and the second section configured for mounting to the dock.
15 . The boat lift of claim 14 , wherein the second section includes the second end of the arm that is configured for mounting to the dock, wherein the second section is adjustably coupled to the first section so that the second end is adjustable in the direction that is aligned with a longitudinal axis of the torque bar.
16 . The boat lift of claim 15 , wherein the second section defines a slot positioned between the first end and the second end, wherein a fastener extends through the slot and at least one opening of the first section.
17 . The boat lift of claim 15 , wherein the second end of the second section has a spherical bearing configured to receive a fastener for mounting the second section to the dock.