Arm with simplified attachment removable unit for construction equipment
AssigneeHitachi Construction Machinery Co., Ltd.
InventorTakahiro Kobayashi
Life of this patent
Estimating the term…
Abstract
In an arm with an attachment removable unit, a reinforcing plate 14 is provided in a space between a pair of bracket portions 12, 12 which are formed by extending the opposite side walls of an arm so as to protrude from the upper and lower walls thereof. An attachment removable unit 100 is housed in the space between the of bracket portions 12, 12. In the state where the attachment 2 is attached to the arm 1, a second hook 7 for engaging a second pin 17 for coupling with the attachment 2 is disposed on a substantially straight line connecting between a pin 19 for connecting with the arm 1 and a first hook 6 for engaging a first pin 18 for connecting with the attachment 2.
Claims5
An arm with an attachment removable unit which is provided in a construction equipment having at least an arm and an attachment which is attached to the arm through the attachment removable unit, said attachment including a first and second pin, said attachment removable unit comprising:
- a pin hole portion for connecting said attachment removable unit with said arm;
- a first hook for engaging said first pin;
- and
- a second hook for engaging said second pin;
- wherein in a state where said attachment is attached to said arm, said second hook is disposed on a substantially straight line connecting said pin hole portion and said first hook;
- and
- wherein said second hook is disposed between said pin hole portion and said first hook.
An arm with an attachment removable unit which is provided in a construction equipment having at least an arm and an attachment which is attached to the arm through the attachment removable unit, said attachment including a first and second pin, said attachment removable unit comprising:
- a pin hole portion for connecting said attachment removable unit with said arm;
- a first hook for engaging said first pin;
- and
- a second hook for engaging said second pin;
- wherein in a state where said attachment is attached to said arm, said second hook is disposed on a substantially straight line connecting said pin hole portion and said first hook, wherein a center portion of said pin hole portion is disposed in a vicinity of a center portion of said second hook to such a degree that a pin for connecting with said arm does not interfere with said attachment, and
- wherein a pair of bracket portions are formed at a tip portion of said arm by extending opposite side walls of said arm so as to protrude from upper and lower walls thereof, and said attachment removable unit is disposed between said bracket portions.
Dependencies are inferred from the claim text.