A bell cup (3) of a rotary atomization-type coating device (1) is provided. This device has a rotary shaft (13) and a feed tube (15) inserted in the rotary shaft. The bell cup is fitted to a tip end part of the rotary shaft and has a coating material spreading surface (31) on an inner surface of the bell cup. The feed tube discharges a coating material to the coating material spreading surface. The coating material spreading surface includes a region extending from a predetermined position on a proximal end side to a distal end edge. The region is constituted of a convex curved surface toward an extension of the rotary shaft. The outermost surface of at least part (31B) of the coating material spreading surface is covered by a diamond-like carbon film (50) free from silicon at least on its outermost surface.

The present disclosure relates to a self-locking threaded fastening assembly that comprises malleable thread tightening pins within the threads of an externally-threaded male component or an internally-threaded female component, and uses thereof. In certain embodiments, the self-locking threaded fastening assembly is used in connection with a rotary paint atomizer system, for example to ensure secure connection between a bell cup and the drive shaft of a turbine apparatus.

A socket tool adapter includes a base member having a first surface and a second surface. First and second jaw members are pivotally connected to the first surface of the base member. The first and second jaw members are configured to move between first and second closed positions and first and second open positions, respectively. The first and second jaw members are configured to receive an accessory when the first and second jaw members are in the open positions. First and second biasing members are connected between the first and second jaw members, respectively, and the base member. The first and second biasing members are configured to bias the first and second jaw members to the first and second closed positions, respectively. A cover member is connected to the second surface of the base member.

A bell cup (3) of a rotary atomization-type coating device (1) is provided. This device has a rotary shaft (13) and a feed tube (15) inserted in the rotary shaft. The bell cup is fitted to a tip end part of the rotary shaft and has a coating material spreading surface (31) on an inner surface of the bell cup. The feed tube discharges a coating material to the coating material spreading surface. The coating material spreading surface includes a region extending from a predetermined position on a proximal end side to a distal end edge. The region is constituted of a convex curved surface toward an extension of the rotary shaft. The outermost surface of at least part (31B) of the coating material spreading surface is covered by a diamond-like carbon film (50) free from silicon at least on its outermost surface.

A speed retarding device for a rotary nozzle includes a hollow cylindrical housing and a rotatable tubular shaft rotatably carried by the housing. The shaft has a central axial bore and an enlarged drag sleeve portion carried in the housing. A pair of support bearings support the drag sleeve portion of the shaft in the housing. An annular inner seal between each of the support bearings and the drag sleeve portion defines a cavity within the housing receiving a viscous fluid confined within the cavity. The drag sleeve portion includes a peripheral helical groove and a plurality of axial bores extending therethrough parallel to the central bore, one or more blind axial bores each having a closed end an open end, and a piston disposed in each of the one or more blind axial bores each defining an air space between the closed end and the piston.

A liquid dispensing device includes a body, a nozzle on an end of the body, a liquid container coupled to the body, and a piston configured to move in the body so as to control an ejection of liquid from the nozzle. The piston and the nozzle are configured to be detached from the body as an assembly.

A socket tool adapter includes a base member having a first surface and a second surface. First and second jaw members are pivotally connected to the first surface of the base member. The first and second jaw members are configured to move between first and second closed positions and first and second open positions, respectively. The first and second jaw members are configured to receive an accessory when the first and second jaw members are in the open positions. First and second biasing members are connected between the first and second jaw members, respectively, and the base member. The first and second biasing members are configured to bias the first and second jaw members to the first and second closed positions, respectively. A cover member is connected to the second surface of the base member.

According to the present invention, an assembly suitability determination device determines suitability of assembly of a component to a paint device. The assembly suitability determination device includes an assembly suitability information recording unit, and an assembly suitability determination unit. The assembly suitability information recording unit records model information representing a model of the component and model information representing a model of a device-side component that receives the component on the paint device, and is suitable for the assembly of the component while associating the model information on the component with the model information on the device-side component. The assembly suitability determination unit determines the suitability of the assembly based on the model information on the component, the model information on the device-side component, and a recorded content of the assembly suitability information recording unit.

The rotary atomizing coating device (1) is provided with a spray head (2) formed of a tube body having a circular truncated conical shape and constituted to spray, from an opening end on the large diameter side, a coating introduced from an opening end on the small diameter side thereof, and a coating supply machine (3) engaged with the spray head (2) for supplying the coating while rotating the spray head (2) around an axial line (O). The spray head (2) has a first coating diffusion part (28) having a curved surface with a convex shape towards the axial line (O) on the inner peripheral surface, and a second coating diffusion part (29) extending to an outer edge (26) of the opening end on the large diameter side having a curved surface with a concave shape towards the axial line (O) with grooves (4) on the outer edge (26).

This rotary atomizing head used in a rotary atomizing head type painting device is provided with: an atomizing head main body formed in a bell shape or a cup shape; an attachment part which is connected to the atomizing head main body and attaches the atomizing head main body to a motor rotary shaft of the rotary atomizing head type painting device; and a resin mold in which an IC tag containing unique information about the rotary atomizing head stored therein is embedded, and which is attached to the attachment part, wherein the attachment part can have a prescribed structure, the resin mold is attached to the attachment part through a prescribed method, and the IC tag is embedded in the resin mold such that the surface of an embedded coil antenna adopts a prescribed state.