초록 ▼

A carrying device for transporting a cylindrical tank is disclosed which is especially suited for being quickly attached and detached from oxygen and acetylene tanks. A circular collar having an inner diameter greater than the outer diameter of the cylindrical tanks is provided. Three gripping teeth

A carrying device for transporting a cylindrical tank is disclosed which is especially suited for being quickly attached and detached from oxygen and acetylene tanks. A circular collar having an inner diameter greater than the outer diameter of the cylindrical tanks is provided. Three gripping teeth are disposed equidistantly from each other on the inner face of the collar, two of the teeth being stationary and the third being movable from a first position in frictionally gripping engagement with the exterior of the tank around which the collar is placed to a second position not in frictionally gripping engagement therewith. The third gripping tooth is reciprocated between the first and second position by means of a pivotal handle mounted adjacent a projection on the movable tooth, the pivoting of the handle abutting the projection on the tooth to move it forward. The handle itself is a pistol grip handle having an elongated opening through which the fingers of the hand may be placed and a hook receiving, circular opening through which the handle may be attached to a crane.

대표청구항 ▼

1. A carrying device for transporting an elongated cylindrical tank having a longitudinal axis from its top to its bottom, the device comprising: a substantially circular collar having an inner face and an outer face, the diameter of circular opening defined by said inner face being greater than

1. A carrying device for transporting an elongated cylindrical tank having a longitudinal axis from its top to its bottom, the device comprising: a substantially circular collar having an inner face and an outer face, the diameter of circular opening defined by said inner face being greater than the outer diameter of said cylindrical tank; a plurality of frictional grippers, disposed on the inner face of said collar, each gripper having an arcuate face having a plurality of rows of gripping teeth, the rows extending substantially perpendicularly to the direction of the longitudinal axis of the tank to be carried by the collar, one of said grippers being mobile from a first position in frictionally gripping engagement with the exterior of the tank on which the collar is placed to a second position not in frictionally gripping engagement therewith; said mobile gripper being provided with a gripping tooth adapted to be moved from a first position in frictionally gripping engagement with the exterior of the tank and a second position not in frictionally gripping engagement therewith; wherein said mobile gripper is further provided with a means for moving said tooth from said second position to said first position, said means for moving said gripping tooth from said second position to said first position comprising: a projection on said tooth for placement through an aperture in said collar; a limit pin carried by said projection; first and second opposing, substantially parallel flanges, one on each side of said aperture, each of said flanges being provided with a limit slot for cooperatively guiding the limit pin of said projection; a pivot pin between said flanges; and a pivotal handle mounted in pivoting engagement on said pivot pin, the pivoting of said handle abutting said limit pin and moving said limit pin within said limit slots to move said gripping tooth from said second to said first position. 2. The carrying device of claim 1, wherein said handle is a pistol grip handle provided with an elongated opening through which the fingers of a hand may be placed and a substantially circular hook receiving opening through which a hook may be placed, the pistol grip handle projecting downwardly past the collar in a direction towards the bottom of a tank being carried when the device is in use, the elongated opening being of sufficient length and width to accommodate all the fingers of a hand. 3. The carrying device of claim 2, wherein there are three grippers, two of said grippers being stationary and the third being movable from said second to said first position, each of said grippers being disposed about 120° apart from each adjacent gripper. 4. A carrying device for transporting a cylindrical tank, comprising: a substantially circular collar having parallel inner and outer faces, the diameter of the circular opening defined by said inner face being greater than the outer diameter of said cylindrical tank, the collar having a top edge and a bottom edge, the top edge being closer to the top of the tank when the device is in use, the bottom edge being closer to the bottom of the tank when the device is in use; a pair of opposing, substantially parallel flanges mounted on the outside face of said collar, one flange on either side of an opening through the collar, each flange defining an elongated limit slot which is elongated in a direction perpendicular to the faces of the collar, said limit slots being opposing and substantially parallel; three frictional gripping teeth disposed substantially equidistantly from each other on the inner face of said collar, each of said teeth being provided with an arcuate, roughened gripping face configured to frictionally grip the exterior of said tank, two of said teeth being stationary, the third being movable and provided with a projection through said aperture in the collar, each gripper face having a plurality of rows of gripping teeth, the rows extending substantially perpendicularly to the direction of the longitudinal axis of the tank to be carried by the collar; a limit pin mounted on said projection for placement in sliding relationship between and within said opposing limit slots to provide reciprocal movement of said third gripping tooth from a first position in frictionally gripping engagement with the exterior of the tank around which the collar is placed to a second position not in frictionally gripping engagement therewith, the diameter of the pin being substantially equal to the width of the limit slots through the opposing flanges; a pivot pin carried between said flanges adjacent said limit slots; and a downwardly depending pistol grip handle pivotally mounted on said pivot pin such that the pivoting of said handle on said pivot pin inclines said handle against said limit pin and moves said third gripping tooth from said second position to said first position, the pistol grip handle projecting downwardly past the collar in a direction towards the bottom of the tank being carried when the tank is in use, the handle being provided with an elongated opening of sufficient width to accommodate all the fingers of a hand. 5. The carrying device of claim 4 wherein said pistol grip handle is provided with an elongated opening through which fingers of a hand may be placed and a substantially circular opening through which a hook may be placed.