Self-propelled working machine
AssigneeHitachi Construction Machinery Co., Ltd.
InventorOsamu Gokita
Life of this patent
Estimating the term…
Abstract
Protective projections (26D) which are provided on cylinder mounting brackets (26) of a cargo handling tool (21) are arranged to project toward a vehicle body (2) from behind the cargo handling tool (21). When the vehicle body (2) is driven in reverse direction with a boom (12) in a folded position on the side of the ground, the protective projections (26D) are collided against obstacles (A) on the ground prior to a rod (27C) of a fork cylinder (27) if the lower side (2A) of the vehicle body (2) has passed over and clear of the obstacles (A). Thus, the protective projections (26D) function to protect the fork cylinder rod (27C) of the fork cylinder (27) against direct collision against obstacles (A) on the ground.
Claims7
An automotive working machine having an automotive vehicle body provided on left and right front wheels and left and right rear wheels, a boom liftably mounted on said vehicle body, a working tool rotatably supported on a fore end portion of said boom, and a tool operating cylinder located between said boom and said working tool at one and the other axial end thereof to turn said working tool in upward and downward directions relative to said boom, characterized in that said automotive working machine comprises:
- a boom mounting member provided on the back side of said working tool, on the side of said vehicle body, and having a boom connecting portion pivotally connected to said fore end portion of said boom, along with a cylinder mounting member having a cylinder connecting portion pivotally connected to the other end of said tool operating cylinder;
- and
- protective projections provided on said cylinder mounting member and projected from the back side of said working tool toward said vehicle body to protect said other end of said tool operating cylinder from obstacles on a ground surface when said vehicle body is put in travel with said boom in a folded position on the side of the ground;
- wherein said protective projections are bent in an obliquely upward direction from a cylinder connecting portion of said cylinder mounting member toward said tool operating cylinder.
Dependencies are inferred from the claim text.