Synchronized bogie

Abstract

This prevents workpieces from falling due to catching on sagging components when the synchronized trolley automatically moves backward. [Solution] The synchronous trolley 20 has a trolley body 21 that moves forward in sync with the conveyor and moves backward by automatic travel by a traveling device 26. A sliding member 30 is slidably mounted on the trolley body 21. Between the trolley body 21 and the sliding member 30, there is a holding device 40 that holds the sliding member 30 in place with a predetermined holding force, and a position displacement detection device 50 that detects position displacement of the sliding member 30 when the trolley body 21 moves backward. The electrical circuit E, including the traveling device 26 and the conveyor, is provided with a power cut-off means 60 that cuts off the power supply to both the traveling device 26 and the conveyor when position displacement of the sliding member 30 is detected.

Claims

1. A synchronous trolley having a trolley body that moves forward in sync with a conveyor that transports workpieces and moves automatically by a traveling device, A sliding member for placing items such as assembly parts is provided on the trolley body so as to be slidable in the same direction as the trolley body's forward and backward movement. Between the trolley body and the sliding member, there is a holding device that holds the sliding member in place with a predetermined holding force, and a positional displacement detection device that detects the positional displacement of the sliding member relative to the trolley body when the trolley body is retracted. A synchronous trolley, wherein the electrical circuit including the traveling device and the conveyor is provided with a power cut-off means that cuts off the drive power to both the traveling device and the conveyor when the misalignment detection device detects a misalignment of the slide member.

2. A synchronous trolley according to claim 1, The positional displacement detection device comprises a dog provided on the sliding member and a dog detection sensor provided on the trolley body for detecting the dog, wherein the trolley is a synchronous trolley.

3. A synchronous trolley according to claim 1 or 2, The holding device is a synchronous bogie comprising a torque limiter provided on the slide member, a sprocket attached to the input shaft of the torque limiter, and a chain laid on the bogie body in the same direction as the forward and backward movement of the bogie body and meshing with the sprocket.

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