SHOT PEENING DEVICE

WIPO Patent Application WO/2016/013465

A1

The purpose of the present invention is to provide a drum-type shot peening device capable of shortening processing time. This shot peening device (10) comprises: a bottomed, cylindrical drum (14) having one end thereof open; and a projector (18) provided on the open side of the drum and which projects projection material on to a workpiece inserted inside the drum. The projector comprises: a cylindrical control gauge (78) having an opening window that is formed in the side wall thereof and serves as a discharge port for the projection material, said opening window having a rectangular shape having two sides thereof parallel to the center axis of the control gauge having the projection material supplied therein; and an impeller (76) comprising a plurality of blades (92) arranged on the outside of the control gauge so as to extend in the radial outside direction of the control gauge, said impeller rotating around the center axis of the control gauge and having a backward-tilting section (108) that is tilted towards the rear side in the blade rotation direction and is provided on the surface on the front side in the rotation direction.

KAGA HIDEAKI (JP)
SUZUKI HIROAKI (JP)
YAMAMOTO SHOICHI (JP)
UMEOKA MASATO (JP)
KOYAMA TAKUYA (JP)

PCT/JP2015/070245

January 28, 2016

July 15, 2015

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SINTOKOGIO LTD (JP)

B24C5/06; B24C3/30

JP2011194486A	2011-10-06
JPS6229254U	1987-02-21
JPS57202661U	1982-12-23
JPS5489391A	1979-07-16
JPS61191862U	1986-11-29
JP2011110642A	2011-06-09
JP2013086215A	2013-05-13
JPS60157166U	1985-10-19
JPS52166898U	1977-12-17

NISHIJIMA Takaki et al. (JP)
Takayoshi Nishijima (JP)

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