초록 ▼

A tool which is suitable for lifting a manhole lid that has spaced attachment notches in its top surface is disclosed. In one embodiment, the tool has a substantially rigid support beam. The beam has a first hook adjacent to its forward end which is adapted to be inserted in one of the notches. The

A tool which is suitable for lifting a manhole lid that has spaced attachment notches in its top surface is disclosed. In one embodiment, the tool has a substantially rigid support beam. The beam has a first hook adjacent to its forward end which is adapted to be inserted in one of the notches. The beam also has a pivot attachment point adjacent the rear end of the beam. There is provided a second hook which is mounted on the pivot attachment point, the second hook being adapted to be inserted in a second of the notches upon a pivoting of the hook relative to the beam. The hooks will then act to grip the lid between them. To provide a secure grip on the lid, there is provided a catch which prevents the second hook from pivoting back out of the second notch until the catch is released. This catch automatically locks the second hook in the second notch upon movement of the second hook into the second notch.

대표청구항 ▼

A tool which is suitable for lifting a manhole lid which has spaced attachment notches, the tool comprising: a substantially rigid support beam; said beam having a first hook adjacent to its forward end which is adapted to be inserted in one of the notches; said beam also having a pivot attachment p

A tool which is suitable for lifting a manhole lid which has spaced attachment notches, the tool comprising: a substantially rigid support beam; said beam having a first hook adjacent to its forward end which is adapted to be inserted in one of the notches; said beam also having a pivot attachment point adjacent the rear end of the beam; a second hook mounted on the pivot attachment point, said second hook being adapted to be inserted in a second of said notches upon a pivoting of the hook relative to the beam, said hooks then acting to grip the lid between them; and a catch means which prevents the second hook from pivoting back out of the second notch until the catch is released, said catch means automatically activating and locking the second hook in the second notch upon a pivotal movement of the second hook into the second notch.