Moving device for rod part supporting instrument hose and dental examination-and-treatment apparatus including moving device for rod part supporting instrument hose
AssigneeTakara Belmont Corporation
InventorsKoji Nakajima, Hiroyuki Terayama
Life of this patent
Estimating the term…
Abstract
A moving unit includes a housing, a rotary unit to which a rod part is attached, a spring that generates a torque when the rod part is tilted down or tilted up about a rotation axis on the side on which a base portion of the rod part is located, and a torque adjustment unit that is capable of adjusting a torque by deforming the spring. The torque adjustment unit includes a spring deforming portion 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.
Claims8
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.
A moving device for a rod part supporting an instrument hose comprising:
- a spring that generates a torque when a 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,
- 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 further comprises a rotary unit provided with an attachment portion to which the base portion of the rod part is attached,
- 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,
- wherein the rotary unit and the spring deforming portion are positioned around the rotation axis, and a second end of the spring is attached to the rotary unit, and
- wherein the spring deforming portion is caused, by an operating member inserted in one of the adjustment holes, to rotate in a direction that is opposite to a direction in which the rod part is tilted down, so that the spring is wound up, and a torque increases.
Dependencies are inferred from the claim text.