Thread plug gauge with maintenance line, thread ring gauge, and method of manufacturing the same
AssigneeNiigata Seiki Co., Ltd.
InventorToshiyuki Igarashi
Life of this patent
Estimating the term…
Abstract
A thread gauge, which allows to reliably know the time for replacement by visual checking and improves the predetermined dimensional accuracy of a thread product has a go-side thread measuring portion extending from one side of a shank portion coaxially with the shank portion or a not-go-side thread measuring portion extending from an other side of the shank portion coaxially with the shank portion, a wear checking gauge line having a predetermined length and a predetermined depth formed on male thread portions and female thread portions formed on the go-side thread measuring portion or the not-go-side thread measuring portion.
Claims10
A thread plug gauge with a maintenance line, the thread plug gauge comprising:
- a thread plug gauge body having a go-side thread measuring portion extending from one side of a shank portion coaxially with the shank portion or a not-go-side thread measuring portion extending from an other side of the shank portion coaxially with the shank portion;
- a wear checking gauge line having a predetermined length and a predetermined depth or a round point having a predetermined depth and a predetermined diameter formed on a male thread portion and a female thread portion formed on the go-side thread measuring portion or the not-go-side thread measuring portion.
Dependencies are inferred from the claim text.