Starting position control for demolition apparatus
AssigneeLaser Alignment, Inc.
InventorTimothy E. Steenwyk
Life of this patent
Estimating the term…
Abstract
A method and apparatus for demolishing a structure is disclosed. A crusher member (12) is provided supported by a support frame (14). A reference position vertically above an operator is established. The relative distance between the crusher member (12) and the reference position in a generally vertical direction is monitored. The crusher member (12) is guided to the reference position as a function of the relative distance in order to prepare for a demolition cycle of removing a portion of the structure. The crusher member (12) is then manually manipulated through a demolition cycle.
Claims25
A method of demolishing a structure comprising:
- providing a crusher member supported by a support frame;
- establishing a reference position vertically above an operator;
- monitoring the relative distance between said crusher member and said reference position in a generally vertical direction;
- guiding said crusher member to said reference position as a function of said relative distance by providing an operator display of said relative distance in order to prepare for a demolition cycle of removing a portion of said structure;
- and
- manually manipulating said crusher member through said demolition cycle.
A hydraulic crusher apparatus, comprising:
- a base member, a crusher member and a connecting member interconnecting said crusher member with said base member;
- a first monitor for monitoring the relative positioning of said crusher member with respect to said connecting member and a second monitor for monitoring the relative positioning of said connecting member with respect to said base member;
- and
- a control that is responsive to said first and second monitors for determining a height of said crusher member with respect to said base member in order to guide said crusher member to return to a reference height above said base member.
A method of controlling a hydraulic crusher having a base member, a crusher member, and a connecting member interconnecting said crusher member with said base member, including:
- monitoring the relative position of said crusher member to said connecting member and the relative position of said connecting member to said base member;
- and
- determining a height of said crusher member with respect to said base member as a function of said position of said crusher member with respect to said connecting member and the relative position of said connecting member with respect to said base member;
- and
- guiding said crusher member to return to a reference height starting position.
A hydraulic crusher apparatus, comprising:
- a base member, a boom pivotally connected to said base member, a stick pivotally connected to said boom, and a pivoting jaw crusher member pivotally connected to said stick;
- a first monitor for a relative position of said crusher member with respect to said stick, a second monitor for a relative position of said stick with respect to said boom, and a third monitor for a relative position of said boom and said base member;
- and
- a control that is responsive to said monitors for determining a height of said crusher member with respect to said base member in order to guide said crusher member to return to a reference starting height above said base member.
Dependencies are inferred from the claim text.