fig1 shows a base ( 10 ), which can take a variety of forms including legs , or platforms sufficient to steady the apparatus . the base ( 10 ) is connected with a vertical member ( 12 ) protruding approximately 18 to 30 inches from the surface of the ice and providing a trunnion ( 14 ) for securing a mounting bracket ( 18 ) and allowing a focus for rotation ( shown in fig4 - 6 ). the mounting bracket ( 18 ) is secured to a seat ( 20 ). the seat ( 20 ) is secured to the handle grip ( 44 ) of a fishing pole by means of fastening member ( 22 ) which could comprise ; a rubber band , velcro ®, tie fasteners or the like . the fishing pole is oriented such that the reel ( 42 ) is generally rotated downward providing a low center of gravity or balance which is on the a stop post or rotational stop ( 16 ) is provided generally above the trunnion ( 14 ) to limit the rotational travel of the pole ( 40 ). a line ( 46 ) having bait and a hook at the distal end ( not shown ) is situated along the pole ( 40 ) and terminating at the reel ( 42 ). in operation the pole ( 40 ) is set up to be oriented at an incline relative to the horizon , or in a ‘ tip - up ’ position . as a fish discovers the bait and takes the hook , the corresponding movement causes tension on the line ( 46 ) pulling it downward into the ‘ tip - down ’ position as is shown in fig2 . when the fisherman sees the pole ( 40 ) in the tip - down position , he knows to attend to the line which , in this case , means removing the mounting bracket ( 18 ) from the trunnion ( 14 ) and reeling in the fish by means of the reel ( 42 ). a hook set mechanism is hereby provided with operation illustrated in fig3 a - c . the hook set further comprising , a platform ( 30 ), a latch member ( 32 ) attached at one end to the platform ( 30 ) and having a free end capable of moving freely , a trigger ( 24 ) for holding the free end of the latch member ( 32 ) while in the set position , swing arm ( 28 ) having a sweep member ( 29 ) and being operatively held in place by the latch member ( 24 ) and able to swing in an arcuate movement when released by the latch ( 24 ), and a spring ( 26 ) capable of imparting kinetic energy to the swing arm in this embodiment , the fishing pole ( 40 ) or seat ( 20 ) ( depending upon set up and orientation ) contacts a trigger ( 24 ) which is held in place by a latch member ( 32 ). the latch member ( 32 ) holds a swing arm ( 28 ) in place by means of a spring ( 26 ), which in this case is a coil spring ( 26 ). the pent up energy in the coil spring ( 26 ) causes the swing arm ( 28 ) to rotate causing a sweep member ( 29 ) generally orthogonal to the swing arm ( 28 ) to bump or jerk the pole 40 ) upward thus setting the hook in the fish &# 39 ; s mouth . fig6 a & amp ; b show a representation of the center of gravity ( cg ), or center of balance , for a seat ( 20 ) with mounting bracket ( 18 ) on a trunnion ( 14 ). a representation of the pole ( 40 ), reel ( 42 ), hand grip ( 44 ) and line ( 46 ) were excluded from the drawing for the sake of simplicity , but it would be understood by one skilled in the art that these would play a part in the completion of the apparatus . in fact , the placement of the pole ( 40 ) within the seat ( 20 ) affects the center of balance as the center of gravity moves toward the trunnion ( 14 ) which acts as a focus or pivot . as the fishing pole moves fore , closing the gap between the center of gravity and the trunnion ( 14 ) the more sensitive the balance becomes and less pull on the line ( 46 ) would be necessary to rotate the seat ( 20 ) from resting against the stop ( 16 ) to accelerating toward the tip down position as shown in fig6 b . as the fishing pole is moved aft , increasing the gap , the more resistant the pole ( 40 ) becomes to pull on the line ( 46 ). one skilled in the art can appreciate that the acceleration of the pole ( 40 ) after a slight tug on the line ( 46 ) by a fish allows the trigger ( 24 ) to reliably activate , and also creates just a little bit of slack on the line ( 46 ) such that when the sweep ( 29 ) engages the pole ( 40 ), it sets the hook ( not shown ) without ripping the hook from the fish &# 39 ; s mouth and settle right back into the tip - down position . one skilled in the art can also appreciate that the fore and aft adjustment of the pole ( 40 ) in the seat ( 20 ) can be made after the line ( 46 ) is released into the water , allowing the fisherman to manually compensate for length of line ( 46 ), fishing weights ( not shown ), current , and the like when setting the center of balance . although the present invention has been described in detail , those skilled in the art will understand that various changes , substitutions , and alterations herein may be made without departing from the spirit and scope of the invention in its broadest form . the invention is not considered limited to the example chosen for purposes of disclosure , and covers all changes and modifications which do not constitute departures from the true spirit and scope of this invention . when introducing elements of aspects of the invention or the embodiments thereof , the articles “ a ,” “ an ,” “ the ,” and “ said ” are intended to mean that there are one or more of the elements . the terms “ comprising ,” “ including ,” and “ having ” are intended to be inclusive and mean that there may be additional elements other than the listed elements . having thus described the invention , what is desired to be protected by letters patent is presented in the subsequent appended claims .
an ice fishing apparatus particularly suited to fishing in deeper waters where the ability to reel in a fish without tangling a line . the apparatus is suited to accommodate a wide variety of standard pole and reel configurations . the apparatus also has a hook setting mechanism .