The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 1991
Filed:
Nov. 09, 1989
Hiroyuki Harada, Osaka, JP;
Yasumasa Matsuura, Nishinomiya, JP;
Toshihiko Araki, Kobe, JP;
Tetsuji Kajitani, Kawanishi, JP;
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
A mobile member control apparatus is provided having a motor for moving a mobile member from a first position to a third position through a second position. The apparatus includes: a sensing device for sensing the travel speed and position of the mobile member; a speed presetting device for presetting upper and lower speed limit values, with the values becoming smaller as the mobile member travels closer to the third position; a deceleration rate presetting device for presetting at least two deceleration rates, Large and small; a comparing device for comparing the actual travel speed with the upper and lower limit values; and a motor control device for decelerating the motor, according to either the large or small deceleration rate, when the mobile member reaches the second position, and for decelerating the motor according to the large deceleration rate when the travel speed for the mobile member is greater than or equal to the upper limit value, and for decelerating the motor according to the small deceleration rate when the travel speed of the mobile member is less than or equal to the lower limit value.