Attachment detaching apparatus for hydraulic shovel
First Claim
1. An attachment detaching apparatus for hydraulic shovels comprising:
- a bracket adapted to be pivoted, through an arm pin and a link pin, respectively, on a tip end of a hydraulic shovel;
a guide groove formed in said bracket and including an opening portion notched into the bracket;
an oscillating arm mounted on said bracket and including at least one opening portion which is a notch located on a side of said bracket in a location opposite to the guide groove;
an opening, closing apparatus for opening or closing the oscillating arm, said opening, closing apparatus being driven in an engaging direction and adapted to engage a first pin of the attachment with the guide groove of the bracket and a second pin with the notch of the oscillating arm for retaining the attachment; and
a rotating hook adapted to grasp the first pin, said rotating hook being pivoted on the bracket through a rotating shaft wherein said rotating hook includes a first end pivoted on the bracket and a second end adapted for opening and closing the guide groove formed in said bracket;
said rotating shaft being mounted wherein a moment in a direction of closing the rotating hook is applied to said hook when a force is applied in a direction of disengaging the first pin along the guide groove, and said opening, closing apparatus is mounted to both the rotating hook and the oscillating arm.
1 Assignment
0 Petitions
Accused Products
Abstract
An attachment detaching apparatus for hydraulic shovels includes a bracket pivoted, through an arm pin and a link pin, respectively, on a tip end of the arm of the hydraulic shovel. Guide grooves are provided with the opening portion being notched into the bracket. An oscillating arm where the opening portion has a notch located on the side opposite to the guide groove or the sliding slider is provided in a location opposite to the guide groove. An opening, closing apparatus for opening or closing the oscillating arm or the sliding slider is provided, the opening, closing apparatus is driven in the engaging direction by the engagement of a pin A of the attachment with the guide groove of the bracket and of a second pin B with the notch of the oscillating arm or the sliding slider so as to retain the attachment. A rotating hook, capable of grasping the pin A, is pivoted on the bracket through the rotating shaft. The rotating shaft is provided in a position where the rotating force in a direction of closing the rotating hook is applied when the pin A is operated in a direction along which the pin A is disengaged along the guide groove. The attachment detaching apparatus for hydraulic shovels has an opening, closing apparatus composed through the rotating hook, the oscillating arm or the sliding slider.
91 Citations
16 Claims
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1. An attachment detaching apparatus for hydraulic shovels comprising:
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a bracket adapted to be pivoted, through an arm pin and a link pin, respectively, on a tip end of a hydraulic shovel; a guide groove formed in said bracket and including an opening portion notched into the bracket; an oscillating arm mounted on said bracket and including at least one opening portion which is a notch located on a side of said bracket in a location opposite to the guide groove; an opening, closing apparatus for opening or closing the oscillating arm, said opening, closing apparatus being driven in an engaging direction and adapted to engage a first pin of the attachment with the guide groove of the bracket and a second pin with the notch of the oscillating arm for retaining the attachment; and a rotating hook adapted to grasp the first pin, said rotating hook being pivoted on the bracket through a rotating shaft wherein said rotating hook includes a first end pivoted on the bracket and a second end adapted for opening and closing the guide groove formed in said bracket; said rotating shaft being mounted wherein a moment in a direction of closing the rotating hook is applied to said hook when a force is applied in a direction of disengaging the first pin along the guide groove, and said opening, closing apparatus is mounted to both the rotating hook and the oscillating arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An attachment detaching apparatus for hydraulic shovels comprising:
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a bracket adapted to be pivoted, through an arm pin and a link pin, respectively, on a tip end of a hydraulic shovel; a guide groove formed in said bracket and including an opening portion notched into the bracket; a sliding slider mounted on said bracket and including at least one opening portion which is a notch located on a side of said bracket in a location opposite to the guide groove; an opening, closing apparatus for opening or closing the sliding slider, said opening, closing apparatus being driven in an engaging direction and adapted to engage a first pin of the attachment with the guide groove of the bracket and a second pin with the notch of the sliding slider for retaining the attachment; and a rotating hook adapted to grasp the first pin, said rotating hook being pivoted on the bracket through a rotating shaft; said rotating shaft being mounted wherein a moment in a direction of closing the rotating hook is applied to said hook when a force is applied in a direction of disengaging the first pin along the guide groove, said opening, closing apparatus is mounted to both the rotating hook and the sliding slider, said guide groove extends at a predetermined angle relative to the positioning of the arm pin and link pin for positioning said first pin therein, said guide groove guides said first pin in a direction towards a center of said rotating shaft during engagement. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification