US 12,070,427 B2
Moving device for rod part supporting instrument hose and dental examination-and-treatment apparatus including moving device for rod part supporting instrument hose
Koji Nakajima, Osaka (JP); and Hiroyuki Terayama, Osaka (JP)
Assigned to Takara Belmont Corporation, Osaka (JP)
Appl. No. 16/758,891
Filed by Takara Belmont Corporation, Osaka (JP)
PCT Filed Nov. 17, 2017, PCT No. PCT/JP2017/041438
§ 371(c)(1), (2) Date Apr. 24, 2020,
PCT Pub. No. WO2019/097666, PCT Pub. Date May 23, 2019.
Prior Publication US 2020/0337930 A1, Oct. 29, 2020
Int. Cl. A61G 15/18 (2006.01); F16F 1/12 (2006.01)
CPC A61G 15/18 (2013.01) [F16F 1/12 (2013.01); F16F 1/121 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A moving device for a rod part supporting an instrument hose comprising:
a spring that generates a torque when the rod part that supports an instrument hose connected to an instrument is tilted down or tilted up about a rotation axis on a base portion side of the rod part; and
a torque adjustment unit that is capable of adjusting a torque by deforming the spring without moving the rod part,
wherein the torque adjustment unit is disposed in a radial direction of the rotation axis and operated in the radial direction,
wherein the spring is positioned around the rotation axis,
wherein the torque adjustment unit includes
a spring deforming portion that is attached to a first end of the spring and that deforms the spring in a direction in which the spring is wound up and
a spring fixing portion that keeps a torque constant by coming into contact with the spring deforming portion and fixing the spring deforming portion in place,
wherein the moving device for a rod part supporting an instrument hose has a plurality of adjustment holes formed on an outer peripheral portion of the spring deforming portion.