Working device
AssigneeTakeuchi Mfg. Co., Ltd.
InventorsAkihiro ISHIAI, Takenori NISHIZAWA
Life of this patent
Estimating the term…
Abstract
A working device is provided wherein a tilt bucket 70 is pivotally joined, vertically swingably, to the tip of an arm 33 by a third pivot joint pin P3 and is vertically swung by a bucket cylinder 38 via first link members 81A, 81B and a second link member 82. The connection unit 100 to be connected to the first link members 81A, 81B is pivotally joined, vertically swingably, to the tip of the bucket cylinder 38. By switching the connection position of connection pins 131A, 131B of the connection unit 100 and the first link members 81A, 81B selectively between the position of a connection hole H1 and the position of a connection hole H2, the swing range and excavating force of the tilt bucket 70 are switched.
Claims11
A working device comprising:
- an arm to which an attachment for work can be vertically swingably attached;
- a first link member pivotally joined, vertically swingably, at one end to the arm;
- a second link member pivotally joined, vertically swingably, at one end to the attachment and at the other end to the other end side of the first link member while the attachment is vertically swingably attached to the arm;
- and
- an attachment hydraulic actuator pivotally joined, vertically swingably, at its base end to the arm and to vertically swing the attachment with respect to the arm,
- wherein the working device comprises a connection unit connectable to the first link member and operated by the attachment hydraulic actuator,
- wherein the working device is configured such that the first link member can be vertically swung by the attachment hydraulic actuator via the connection unit connected to the first link member,
- wherein the working device is configured such that the first link member and the connection unit can be connected switching selectively between a plurality of positions, and
- wherein the working device comprises a connection switching means operated to work so as to switch the connection position of the first link member and the connection unit.
Dependencies are inferred from the claim text.