| 摘要 |
An apparatus to assist with placing a climbing device and safety tether into a tree or other tall upwardly extending object and then securing the climbing device and safety tether to that object, by use of a gripping ring dimensioned to substantially encircle the object and having gripping members disposed along its inner surface to engage with the object, where the gripping ring has a climbing device attachment component to attach the climbing device, such as a ladder or a rope, to the gripping ring, a safety tether attachment component to attach the safety tether to the gripping ring, and a positioning device attachment component to allow a positioning device, such as a pole, to be used to properly position the gripping ring. |
| 主权项 |
1. An apparatus to be used with an upwardly extending object, said upwardly extending object having a height and a substantially circular cross section, said apparatus suitably adapted to assist with placing an independent climbing device into said upwardly extending object and securing the climbing device thereto, said apparatus comprising
a gripping ring, said gripping ring being substantially rigid and shaped to substantially encircle the upwardly extending object, forming an open interior,
said gripping ring having one or more gripping members, each said gripping member attached to the gripping ring and extending inward into the open interior formed by the gripping ring,said gripping ring having a frame, a first arm, a second arm, a first pivot member, and a second pivot member,
said frame having a first end and a second end and being substantially curved from its first end to its second end such that an inner portion of said frame is concave,said first arm having a first end and a second end and being substantially curved from its first end to its second end such that an inner portion of said first arm is concave,said second arm having a first end and a second end and being substantially curved from its first end to its second end such that an inner portion of said second arm is concave, andwith said first end of said first arm being in pivotal connection by the first pivot member with said first end of said frame, and said first end of said second arm being in pivotal connection by the second pivot member with said second end of said frame, such that the first and second arms are capable of moving in relation to each other,said gripping ring having a closed state and an open state,
with the closed state of the gripping ring being an orientation of the first and second arms of the gripping ring such that the second end of the first arm circumferentially overlaps the second end of the second arm by said second ends each arm being offset from a plane of the gripping ring in opposite directions relative to said plane of the gripping ring, andwith the open state of the gripping ring being an orientation of the first and second arms of the gripping ring such that the second end of the first arm is further away from the second end of the second arm than when the gripping ring is in the closed state, andsaid gripping ring having a climbing device attachment component, said climbing device attachment component extending outward from the gripping ring and being suitably adapted to secure the climbing device to the gripping ring, whereby the climbing device is attached to the gripping ring at the climbing device attachment component and the gripping ring is placed onto the upwardly extending object such that the gripping ring substantially encircles the upwardly extending object and the one or more gripping members of the gripping ring engage with the upwardly extending object, holding the gripping ring in place on the upwardly extending object. |
