Fuji Machine Mfg. Co., Ltd.

Ye JianMing

Koichi Asai

Yasuo Muto

Kazuaki Mori

Kazuo Amano

A method of controlling an operation of an operating member from a first position to a second position, wherein an operating speed of the operating member is initially increased from zero while an acceleration value of the operating member is first increased from zero and then decreased to zero, and the operating speed is subsequently decreased while the acceleration value is first decreased from zero and then increased to zero, and wherein a derivative of the acceleration value of the operating member is controlled such that the derivative during an acceleration increasing time and the derivative during an acceleration decreasing time are asymmetric with respect to each other. Also disclosed in an operating device including the operating member and a control device having an asymmetric control portion configured to practice the control method.

Operation control method, operating device, and circuit-board working apparatus

An apparatus for displacing two displaceable members, including a first member, a second member which is supported by the first member such that the second member is displaceable relative to the first member, a third member which is supported by the second member such that the third member is displaceable relative to the second member, a first and a second drive source which have respective output members and each of which is not movable relative to the first member, a mechanically motion-transmitting device which is connected to the respective output members of the first and second drive sources and to the second and third members and which mechanically transmits respective motions of the output members to the second and third members while allowing the second and third members to be displaced relative to each other, and a displacement control device which is connected to the first and second drive sources and which controls the first and second drive sources and thereby controls the displacement of each of the second and third members relative to the first member.

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Anjo, Japan

Ye JianMing