Conveying device

A conveying device comprising:

• a loading-weight support that supports a load of an object to be conveyed and moves up and down in a shaft to convey the object to be conveyed;
• and
• a first driving device that is provided on the loading-weight support, lifts and lowers the loading-weight support along a first rail extending in a lifting and lowering direction of the loading-weight support in the shaft, and includes:
• a first wheel unit including a first wheel in contact with a guide surface extending in a longitudinal direction of the first rail and drives to rotate the first wheel to lift and lower the loading-weight support;
• a second wheel unit that is arranged symmetrically to the first wheel unit across the first rail and includes a second wheel in contact with an opposite side of a position of the first rail where the first wheel is in contact;
• a first coupling link including:
• a first connecting joint connected to the first wheel unit;
• and
• a second connecting joint rotatably supported by the loading-weight support and positioned further apart from the guide surface than the first connecting joint, wherein the second connecting joint is arranged above the first connecting joint, and a tilt angle from a horizontal plane of a straight line connecting the first connecting joint and the second connecting joint is smaller than 45 degrees;
• and
• a second coupling link that is connected to the second wheel unit, rotatably supported by the loading-weight support, and arranged symmetrically to the first coupling link across the first rail;
• and
• a rotation restraining transmitter assembly that transmits, to the second coupling link, rotation generated in the first coupling link by displacement in a horizontal direction of the first wheel unit to displace the second wheel unit in an opposite direction of the first wheel unit.

A conveying device comprising:

• a loading-weight support that supports a load of an object to be conveyed and moves up and down in a shaft to convey the object to be conveyed;
• and
• a first driving device that is provided on the loading-weight support, lifts and lowers the loading-weight support along a first rail extending in a lifting and lowering direction of the loading-weight support in the shaft, and includes:
• a first wheel unit that includes a first wheel in contact with a guide surface extending in a longitudinal direction of the first rail and drives to rotate the first wheel to lift and lower the loading-weight support;
• a second wheel unit that is arranged symmetrically to the first wheel unit across the first rail and includes a second wheel in contact with a rear side of a position of the first rail where the first wheel is in contact;
• a first coupling link including:
• a first connecting joint connected to the first wheel unit;
• and
• a second connecting joint rotatably supported by the loading-weight support and positioned further apart from the guide surface than the first connecting joint, wherein the second connecting joint is arranged above the first connecting joint, and a tilt angle from a horizontal plane of a straight line connecting the first connecting joint and the second connecting joint is smaller than 45 degrees;
• and
• a second coupling link that is connected to the second wheel unit, rotatably supported by the loading-weight support, and arranged symmetrically to the first coupling link across the first rail;
• and
• a rotation restraining transmitter assembly that transmits, to the first coupling link, rotation generated in the second coupling link by displacement in a horizontal direction of the second wheel unit to displace the first wheel unit in an opposite direction of the second wheel unit.