Crane with Automatic Adjustable Tightening Mechanism
OwnerRonen Gomani, Timor Shefi +1inventors
InventorsRonen Gomani, Timor Shefi, Itamar Goeta
Life of this patent
Estimating the term…
Abstract
A hoisting crane that comprises a male shaft, a female shaft, a locking shaft, a tightening spring, a hoisting arm, a pressure arm, a top shoe, a bottom shoe, a top bearing, and a bottom bearing. The crane is portable and collapsible and is equipped with an automatic adjusting tightening mechanism that fixes and secures the crane to the work room floor and ceiling using a spring and in a way that the greater the load on the crane, the more the pressure arm increases the tightening force that the crane applies to the work room floor and ceiling.
Claims2
A hoisting crane that includes an automatic adjustable tightening mechanism that comprises a male shaft, a female shaft, a locking shaft, a tightening spring, a hoisting arm, a pressure arm, a top shoe, a bottom shoe, a top bearing, and a bottom bearing;
- wherein the male shaft is a long rod with several holes in its upper part;
- wherein the bottom of the male shaft is attached to the bottom bearing, which in turn is attached to the bottom shoe;
- wherein the female shaft is a long, hollow rod with a bottom opening and a top opening;
- wherein the upper part of the female shaft has a stopper and an external support means and its bottom part has a locking hole;
- wherein the locking shaft is a short rod whose upper end is attached to the top bearing, which in turn is attached to the top shoe;
- and wherein the bottom end of the locking shaft is attached to the said spring.
A hoisting crane that includes an automatic adjustable tightening mechanism that comprises a male shaft, a female shaft, a locking shaft, a tightening spring, a hoisting arm, a diagonal supportive rod, a top shoe, a bottom shoe, a top bearing, and a bottom bearing;
- wherein the male shaft is a long rod with several holes in its upper part;
- wherein the bottom of the male shaft is attached to the bottom bearing, which in turn is attached to the bottom shoe;
- wherein the female shaft is a long, hollow rod with a bottom opening;
- wherein the upper part of the female shaft has a locking hole;
- wherein the top end of the diagonal supportive rod is attached to the hoisting arm and its bottom end is attached to the bottom bearing;
- wherein the locking shaft is a short rod whose upper end is attached to the top bearing, which in turn is attached to the top shoe;
- wherein the bottom end of the locking shaft is attached to the said spring;
- wherein the locking shaft is assembled over the female shaft;
- and wherein the rear part of the hoisting arm is attached by means of an axial joint to the locking shaft.
Dependencies are inferred from the claim text.