Patent ID: 11873847
Assignee: FUJIKURA COMPOSITES INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A cylinder device comprising:
a cylinder body having a front side and a rear side; and
a shaft member supported in the cylinder body for rotation about the shaft center line that extends between the front side and the rear side of the cylinder body,
wherein the cylinder body is provided with a rotation mechanism including a rotation chamber through which the shaft member extends and a rotating body mounted on the shaft member in the chamber, the rotating body connected to an end portion of the shaft member to rotate the shaft member in accordance with an action of compressed air,
wherein the rotation mechanism has a front end positioned at the front side of the cylinder body, a rear end positioned at the rear side of the cylinder body, and an outer circumferential part by which the front end and the rear end are connected,
wherein the rotation chamber is defined by an internal region defined by the front end, the rear end and the outer circumferential part,
wherein the rotation mechanism is provided with supply rotation ports in the front end and in the rear end, respectively, that communicably connect with the rotation chamber, the compressed air being supplied to the rotating body by each supply rotation port,
wherein the outer circumferential part is provided with a plurality of discharge rotation ports, that communicably connect with the rotation chamber for discharging the compressed air,
wherein the plurality of the discharge rotation ports are respectively formed, on the outer circumferential part between the front end and the rear end, as long-holes extending in a direction parallel to the shaft center line, and the discharge rotation ports are located at intervals in a circumferential direction about the shaft center, and
wherein the shaft member is supported to be capable of stroke movement, wherein the rotating body strokes with the shaft member, and
wherein the discharge rotation ports are provided within a stroke movement range of the rotating body along a direction parallel to the shaft center line.