Overhead transport vehicle
An overhead transport vehicle includes a gripper unit that grips an article, a hoist unit that lifts and lowers the gripper unit, and a hoist support unit supporting the hoist unit. The hoist unit is vertically movably mounted on the hoist support unit, and an anti-vibration member is interposed between the hoist support unit and the hoist unit.
1 . An overhead transport vehicle comprising:
a gripper unit configured to grip an article;
a hoist unit configured to lift and lower the gripper unit; and
a hoist support unit supporting the hoist unit, wherein
the hoist unit is vertically movably mounted on the hoist support unit, and
an anti-vibration member is interposed between the hoist support unit and the hoist unit, wherein the hoist unit is vertically movably mounted on the hoist support unit with a parallel link interposed between the hoist unit and the hoist support unit.
2 . The overhead transport vehicle according to claim 1 , wherein
the parallel link includes a first end mounted on the hoist support unit with a first shaft and a second end mounted on the hoist unit with a second shaft, and
a rubber bushing serving as the anti-vibration member is provided in at least one of a space between the first end and the first shaft and a space between the second end and the second shaft.
3 . The overhead transport vehicle according to claim 2 ,
further comprising:
a lateral movement mechanism configured to laterally move the hoist unit, wherein the hoist unit is equipped with a sensor configured to detect whether the article is placed on a storage shelf based on projected-light onto and received-light from a reflecting plate mounted on the storage shelf, and
the lateral movement mechanism laterally moves the hoist unit when the received-light from the reflecting plate is not detected.
4 . The overhead transport vehicle according to claim 1 , further comprising:
a lateral movement mechanism configured to laterally move the hoist unit, wherein
the hoist unit is equipped with a sensor configured to detect whether the article is placed on a storage shelf based on projected-light onto and received-light from a reflecting plate mounted on the storage shelf, and
the lateral movement mechanism laterally moves the hoist unit when the received-light from the reflecting plate is not detected.
5 . An overhead transport vehicle comprising:
a gripper unit configured to grip an article;
a hoist unit configured to lift and lower the gripper unit; and
a hoist support unit supporting the hoist unit, wherein
the hoist unit is vertically movably mounted on the hoist support unit, and
an anti-vibration member is interposed between the hoist support unit and the hoist unit;
a lateral movement mechanism configured to laterally move the hoist unit, wherein
the hoist unit is equipped with a sensor configured to detect whether the article is placed on a storage shelf based on projected-light onto and received-light from a reflecting plate mounted on the storage shelf, and
the lateral movement mechanism laterally moves the hoist unit when the received-light from the reflecting plate is not detected.