Patent ID: 11906062
Assignee: FUJIKIN INCORPORATED
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A fluid control device comprising:
upstream side and downstream side joint blocks each having an upper surface and a bottom surface facing each other and side surfaces extending from the upper surface to the bottom surface, the joint blocks each defining a fluid flow path, defining a flow path port of the fluid flow path which opens in the upper surface, and having an engaging portion at the bottom surface;
a support member that extends linearly in a longitudinal direction and has a guide portion to which the engaging portions of the upstream side and downstream side joint blocks are engageable; and
a fluid device supported by the support member via the upstream side and downstream side joint blocks;
wherein the guide portion restrains the upstream side and downstream side joint blocks on the support member while allowing the movement of the upstream side and downstream side joint blocks in a guiding direction,
the fluid device has a body defining a fluid flow path, and the body has a bottom surface at which two flow path ports open,
a first screw hole is formed toward the bottom surface from the upper surface of the upstream side joint block, a second screw hole is formed toward the bottom surface from the upper surface of the downstream side joint block, the first and second screw holes are configured to be screwed with fastening bolts to connect the body to the upstream side and downstream side joint blocks while pressing seal members arranged around the flow path ports of the upstream side and downstream side joint blocks and the two flow path ports of the body, which are abutted against each other,
the first screw hole of the upstream side joint block is formed only on an upstream side of the flow path port of the upstream side joint block in the longitudinal direction,
the second screw hole of the downstream side joint block is formed only on a downstream side of the flow path port of the downstream joint block in the longitudinal direction,
the upstream side and downstream side joint blocks are fixed to the guide portion by utilizing a reaction force against a bending force to the upstream side and downstream side joint blocks and the body connected together generated by a tightening force of the fastening bolts, and
a length of the engaging portion in the longitudinal direction of the joint blocks is formed to be shorter than a length of the joint blocks.