PURPOSE: To suppress increase of the height of the captioned apparatus and increase the vibration-proof effect by connecting a driving spring supporting part onto a base by means of vibration-proof leaf springs, in a lenear part feeder.
CONSTITUTION: A spring supporting part 33 is fixed onto a base 40 through vibration-proof leaf springs 43 and 44, and said base 40 is installed onto a setting base 9. In the above described constitution, the repulsive forces generated in the case when a feeding trough 22 and a returning trough 21 are vibrated by the excitation of electromagnetic coils 37 and 38 are applied onto the supporting part 33 through driving leaf springs 31 and 32. Although the horizontal components of said repulsive forces are offset by the vibration of the troughs 21 and 22 in mutually reverse phase, the vertical components are added and attracted by the driving leaf springs 43 and 44. In this constitution the effective vibration- proof effect can be obtained by properly selecting each spring constant of the leaf springs 43 and 44 through controlling each length of the leaf springs 43 and 44, and said vibration-proof effect can be increased without increasing the height of the apparatus.
OOKURA YOSHIAKI
OOKI EIJI
