Weight
AssigneeKobelco Construction Machinery Co., Ltd.
InventorsAkira Koyahata, Dairo Matsui, Takanobu Yamagami
Life of this patent
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Abstract
Provided is a weight capable of being easily attached to and detached from a load suspended-load rope. The weight is disposed to detect overwinding of a load suspended-load rope suspended from a derricking member of a construction machine. The weight includes a weight body, which has a cylindrical shape enclosing the load suspended-load rope, configured to be suspended from the derricking member through a string-like part. The weight body is formed with a rope insertion space that allows the load suspended-load rope to pass through the rope insertion space in the radius direction of the suspended-load rope. The rope insertion space includes an oblique slit part, which has a shape oblique to the center axis.
Claims19
A weight disposed around a suspended-load rope suspended from a derricking member of a construction machine to detect over-winding of the suspended-load rope, the weight comprising
- a weight body to be suspended from the derricking member through at least one string-like part, the weight body having a cylindrical shape capable of enclosing the suspended-load rope, wherein:
- the weight body is formed with a rope insertion space partially with respect to a circumference direction, the rope insertion space passing through the weight body in a radius direction of the weight body to allow the suspended-load rope to be inserted through the rope insertion space in the radius direction;
- the rope insertion space has a shape cutting through the weight body from one end of the weight body to the other end on an opposite side to the one end in an axis direction that is parallel to a center axis of the weight body;
- the rope insertion space includes at least one oblique slit part oblique to the center axis so as to prevent the suspended-load rope from passing through the oblique slit part in a state where the center axis and the suspended-load rope are parallel to each other;
- and
- the at least one oblique slit part includes an oblique slit part having a width decreasing inward from an outside in the radius direction of the weight body.
A weight disposed around a suspended-load rope suspended from a derricking member of a construction machine to detect over-winding of the suspended-load rope, the weight comprising:
- a weight body to be suspended from the derricking member through at least one string-like part, the weight body having a cylindrical shape capable of enclosing the suspended-load rope, wherein:
- the weight body is formed with a rope insertion space partially with respect to a circumference direction, the rope insertion space passing through the weight body in a radius direction of the weight body to allow the suspended-load rope to be inserted through the rope insertion space in the radius direction;
- the rope insertion space has a shape cutting through the weight body from one end of the weight body to the other end on an opposite side to the one end in an axis direction that is parallel to a center axis of the weight body;
- the rope insertion space includes at least one oblique slit part oblique to the center axis so as to prevent the suspended-load rope from passing through the oblique slit part in a state where the center axis and the suspended-load rope are parallel to each other;
- and
- the rope insertion space is composed of only the at least one oblique slit part.
A weight disposed around a suspended-load rope suspended from a derricking member of a construction machine to detect over-winding of the suspended-load rope, the weight comprising
- a weight body to be suspended from the derricking member through at least one string-like part, the weight body having a cylindrical shape capable of enclosing the suspended-load rope, wherein:
- the weight body is formed with a rope insertion space partially with respect to a circumference direction, the rope insertion space passing through the weight body in a radius direction of the weight body to allow the suspended-load rope to be inserted through the rope insertion space in the radius direction;
- the rope insertion space has a shape cutting through the weight body from one end of the weight body to the other end on an opposite side to the one end in an axis direction that is parallel to a center axis of the weight body;
- the rope insertion space includes at least one oblique slit part oblique to the center axis so as to prevent the suspended-load rope from passing through the oblique slit part in a state where the center axis and the suspended-load rope are parallel to each other;
- the at least one oblique slit part includes a first oblique slit part and a second oblique slit part that are apart from each other in the axis direction;
- and
- the rope insertion space further includes an intermediate opening part interposed between the first oblique slit part and the second oblique slit part, the intermediate opening part having a width larger than a width of the first oblique slit part and larger than a width of the second oblique slit part.
Dependencies are inferred from the claim text.