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:
Apr. 25, 2000
Filed:
Mar. 31, 1998
Ken'ichi Furukawa, Kokuryo-cho, Chofu-shi, Tokyo, JP;
Kouji Teranishi, Kokuryo-cho, Chofu-shi, Tokyo, JP;
Satoru Manabe, Kokuryo-cho, Chofu-shi, Tokyo, JP;
Other;
Abstract
An improved sliding feed mechanism having a worm gear is disclosed can prevent a locking state from occurring between the worm and the worm wheel. The sliding feed mechanism includes a motor having a rotational shaft with an output end, a worm fixedly mounted to the rotational shaft and formed with a left-hand thread, a worm wheel which meshes with the worm, a driven member which is adapted to slidably move according to the rotation of the worm wheel. In this connection, the lead angle of the worm wheel is set so as to be larger than the lead angle of the worm, and the motor is mounted so that the output end of the rotational shaft is upwardly tilted so as to provide a proper engagement between the worm and the worm wheel having said lead angle.