SCREW FEEDING DEVICE AND ACTUATOR USING SAME

WIPO Patent Application WO/2016/104092

A1

Provided is a screw feeding device in which the entire device can be made smaller even with a shock-absorbing mechanism incorporated between a rod member (3) and a nut member (2), wherein: the screw feeding device is provided with a screw shaft (1), a nut member (2) that is attached to the screw shaft (1) and that has a flange part (23) in the outer peripheral surface, a rod member (3) that contains a hollow part and has an attachment part (31) facing the flange part (23) of the nut member (2), and a shock-absorbing member (4) for linking the flange part (23) of the nut member (2) and the attachment part (31) of the rod member (3); the shock-absorbing member (4) is provided with a plurality of shafts (43, 44) arranged along the outside diameter of the nut member (2), a pair of separating plates (41, 42) that move freely along the shafts (43, 44), and an elastic body (45) arranged so as to be compressed between the pair of separating plates (41, 42); and the plurality of shafts (43, 44) include shafts (43, 44) secured to the flange part (23) and shafts (43, 44) secured to the attachment part (31).

MATSUMOTO BUNGO
KUBOTA YUJI
UCHIKOSHI TOMOYA

PCT/JP2015/083965

June 30, 2016

December 03, 2015

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HIRATA SPINNING (JP)
THK CO LTD (JP)

F16H25/24; F16H25/20; F16H25/22; H02K7/06

JPS6415854U	1989-01-26
JPS56167949A	1981-12-23
JP2010112519A	2010-05-20
JPS6082515A	1985-05-10

IDE Tetsuroh et al. (JP)
Tetsuro Ide (JP)

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