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. 30, 2019
Filed:
Dec. 28, 2016
Chiung-yu Chang, Taichung, TW;
Chiung-Yu Chang, Taichung, TW;
Other;
Abstract
A scroll saw has a machine base. The machine base includes two parallel transmission shafts thereon. The two transmission shafts are connected to each other through a synchronous unit. The synchronous unit has an upper crankshaft and a lower crankshaft connected to the transmission shafts, respectively. A plurality of crankshaft connecting levers are connected between the upper crankshaft and the lower crankshaft. When one of the transmission shafts is rotated, another transmission shaft will be driven to rotate through the synchronous unit. Because the synchronous unit is composed of the crankshaft connecting levers, the connection between the transmission shafts is relatively tight. This ensures that the transmission shafts do not generate a deviation in rotation to avoid vibration and noise.