Marking device
AssigneeUratanishoji Kabushiki Kaisha
InventorHideki Uratani
Life of this patent
Estimating the term…
Abstract
A marking device comprises an outer shell in a cylindrical shape with a bottom surface attached to a molding device, a rotatable tube provided inside of the outer shell, an indicator connecting to the bottom of the outer shell and a support mechanism pushing up the rotatable tube from the internal space of the outer shell while the indicator and the outer shell are engaged with each other. The head of the indicator is formed in a frusto-conical shape tapered into the inside of the outer shell. The rotatable tube comprises an inner surface contacting to the outer surface of the head of the indicator, and an outer surface forming a frusto-conical head tapered into the inside of the outer shell from a second carved marks. The outer shell comprises an inner surface contacting to the outer surface of the head of the rotatable tube.
Claims13
A marking device comprising;
- an outer shell comprising a first surface with at least one relief character and a bottom surface, the first surface defining an opening,
- a rotatable tube comprising a tapered head comprising a second surface with at least one relief character, the rotatable tube inserted into the outer shell through its opening so that the second surface is leveled with the first surface while the tapered head sealingly contacts with an inner wall of the outer shell,
- an indicator comprising a tapered head with a third surface with at least one relief character and a threaded leg engaged with a threaded hole provided in the bottom surface of the outer shell, the taper head including a periphery surface configured to sealingly contact with an inner surface of the rotatable tube when the third surface is leveled with the second surface,
- a support mechanism configured to support the rotatable tube in the outer shell,
- a ratchet ring located at a bottom of the rotatable tube, and
- a control ball protruding from a periphery surface of the indicator, the control ball configured to engage with the ratchet ring when the indicator rotates in a first direction so that the rotatable tube rotates with the indicator and to retract into a receiving hole of the indicator when the indicator rotates in a second direction so that the rotatable tube remains stationary, wherein
- the support mechanism makes a periphery surface of the head of the rotatable tube apart from the inner surface of the outer shell until the third surface is leveled with the first surface.
Dependencies are inferred from the claim text.