초록 ▼

A portable observation tower and system of raising and lowering the tower is disclosed. The tower has a tower box with two fixed sectioned front legs and two hinged sectioned back legs. To raise the tower front legs are pulled toward back legs with a winch system mounted on a trailer hitch system. R

A portable observation tower and system of raising and lowering the tower is disclosed. The tower has a tower box with two fixed sectioned front legs and two hinged sectioned back legs. To raise the tower front legs are pulled toward back legs with a winch system mounted on a trailer hitch system. Rolling landing gear is lowered and drawn by winch to a front most locking position. This raises the mid section of tower box reducing the angle of front legs to back legs. Once complete the winch line can be attached to an axle of back legs to draw back legs to front legs. This process elevates tower to its full upright position. Wheels are provided on back legs and on trailer hitch system for movement of the tower. The lowering process occurs in reverse order of the raising process.

대표청구항 ▼

1. A portable observation tower comprising: a tower box;two fixed front legs attached to the front of said tower box;two hinged back legs attached to the back of said tower box;back wheels attached to said back legs and connected together by way of an axle;at least one winch positioned to the front

1. A portable observation tower comprising: a tower box;two fixed front legs attached to the front of said tower box;two hinged back legs attached to the back of said tower box;back wheels attached to said back legs and connected together by way of an axle;at least one winch positioned to the front of said tower box, said winch actuating at least one winch line to raise and lower said portable observation tower;said at least one winch line connecting to said axle and actuated by said winch;at least one jack having at least one wheel positioned to the front of said tower, said at least one jack being adjustable to raise and lower said at least one wheel such that said at least one wheel contacts the ground and raises said two fixed front legs off of the ground during raising and lowering of the portable observation tower;said at least one wheel of said at least one jack being retractable when said portable observation tower is in a raised position such that said front legs contact the ground; anda trailer hitch adjacent said winch. 2. The portable observation tower of claim 1 wherein said front legs and said back legs are adjustable in length. 3. The portable observation tower of claim 1 wherein said at least one jack further comprises a crank mechanism for actuating said jack. 4. The portable observation tower of claim 1 further comprising at least one pulley attached in front of said front legs for feeding said at least one winch line to said at least one winch. 5. The portable observation tower of claim 1 further comprising at least one support member attached to the front of said front legs for attaching said at least one winch and said at least one pulley. 6. The portable observation tower of claim 1 further comprising a handle positioned to the front of said at least one support member. 7. The portable observation tower of claim 1 further comprising rolling landing gear positioned below said tower box. 8. The portable observation tower of claim 7 further comprising a connection member positioned between said axle and said rolling landing gear. 9. The portable observation tower of claim 8 wherein said rolling landing gear is comprised of a Y-shaped member for connection of said rolling landing gear to said tower box. 10. A portable observation tower comprising: two fixed front legs;two hinged back legs adjacent said front legs, said back legs being hingedly attached to a back side of said tower box;back wheels attached to said back legs and connected together by way of an axle;at least one winch positioned to the front of said front legs, said winch actuating at least one winch line to raise and lower said portable observation tower;said at least one winch line connecting to said axle and actuated by said winch;at least one jack having at least one wheel positioned to the front of said tower, said at least one jack being adjustable to raise and lower said at least one wheel such that said at least one wheel contacts the ground and raises said two fixed front legs off of the ground during raising and lowering of the portable observation tower;said at least one wheel on said at least one jack being retractable when said portable observation tower is raised such that said front legs contact the ground; anda trailer hitch adjacent said winch. 11. The portable observation tower of claim 10 further comprising a tower box attached to said front legs and said back legs. 12. A process for operating a portable observation tower comprising the steps of: raising said portable observation tower by performing the steps of:connecting a winch line from a winch to an axle disposed adjacent and connecting two hinged back legs of said portable observation tower;actuating at least one jack to lower at least one jack wheel such that said at least one jack wheel touches the ground and front legs of said portable observation tower no longer touch the ground, said at least one jack and said at least one jack wheel being disposed adjacent said front legs;operating said winch to pull said front legs toward said back legs;retracting said at least one jack to retract said at least one jack wheel such that said front legs rest on the ground; andlowering said portable observation tower by performing the steps of:actuating said at least one jack to lower said at least one jack wheel such that said at least one jack wheel touches the ground and said front legs no longer touch the ground;pulling said front legs forward until said back legs are fully hinged and said portable observation tower is resting on trailer wheels which are connected to said axle. 13. The process for operating a portable observation tower of claim 12 wherein said pulling said front legs forward step further comprises loosening said winch line from said winch. 14. The process for operating a portable observation tower of claim 13 wherein said raising step further comprises the step of adjusting said front legs and said back legs to desired lengths. 15. The process for operating a portable observation tower of claim 13 wherein said raising step further comprises the step of securing said tower to maintain a fixed position. 16. The process for operating a portable observation tower of claim 13 wherein said raising step further comprises the steps of: connecting rolling landing gear to at least one winch with at least one winch line; andpulling said landing gear into a locking position.