Patent ID: 6763927
Filing Date: 2004-07-20
Classification: B65G

Abstract:
A conveying apparatus comprising:a motor-installed device comprising a casing, a motor accommodated in the casing and a shaft; the casing being capable of rotating relative to and about the shaft; the shaft being capable of rotating about a rotation axis so as to produce a torque; at least one cam fixed on the casing; an endless member; a drive member for driving the endless member; a terminal member disposed opposite to the drive member; a deflector for converting the rotation axis to a transverse axis for the drive member, with the transverse axis extending crosswise to the rotation axis so as to transmit the torque to the drive member; the drive member and the terminal member being spanned with the endless member that substantially encloses the motor-installed device; and a support that is interposed between the casing and the endless member so as to be capable of contacting both the at least one cam and the endless member, wherein when the shaft rotates relative to the casing standing stationary, the torque is applied to the drive member so as to cause the endless member to travel in a circulating manner, and when the casing rotates together with the cam relative to the shaft standing still, the cam raises or lowers the support so as to expand outwards or retract inwards a portion of the endless member.