Swing nozzle

摘要

A swing nozzle (1) includes a base (11), a frame (12), the base end side of which is turnably supported on the base (11), a support body (13) which is supported on the leading end side of the frame (12) so as to be able to turn around a turning center axis parallel to a turning center axis of the frame (12) with respect to the base (11), and a pipe body (14) which is supported on the base (11) and the support body (13) in a state where a flexible section (50) between the base (11) and the support body (13) is bent and which discharges a fluid from an opening portion (56) of an opposite end to the base (11). According to the swing nozzle (1), it becomes possible to provide a swing nozzle in which it is possible to stably perform a swing movement in a plane.

主权项

1. A swing nozzle comprising:
a base; a frame, which has a pair of lengthy main plates each having a long shape and the base end side of which is turnably supported on the base; a support body which is supported on the leading end side of the frame so as to be able to turn around a turning center axis parallel to a turning center axis of the frame with respect to the base; and a pipe body which is supported on the base and the support body in a state where a flexible section, which can be elastically deformed and is provided between the base and the support body, is bent and which discharges a fluid from an opening portion of an opposite end to the base, wherein a reciprocating movement of a forward stroke and backward stroke are performed with a force that is generated by the fluid that enters into the pipe body; a forward stroke that is the turning of the frame toward a first side with respect to the base by a discharge reactive force which is input from the pipe body to the support body at the time of fluid discharge and thus a bend state of the flexible section is reversed, the frame is turned to a turning end on the first side by a biasing force caused by an elastic deformation of the flexible section, a backward stroke that is the turning of the frame toward a second side with respect to the base by the discharge reactive force and thus a bend state of the flexible section is reversed, the frame is turned to a turning end on the second side by the biasing force of the flexible section, the frame whose base end side of the main plate on the first side is disposed outside the support plate section on the first side of the base and the base end side of the main plate is turnably supported by a turning shaft having a threaded portion provided perpendicular to the support plate section, and the frame whose base end side of the main plate on the second side is disposed outside the support plate section on the second side of the base and the base end side of the main plate is turnably supported by a turning shaft provided coaxially with the turning shaft at the support plate section.