Abstract An embroidery frame, which is in an annular shape and consists of an inner ring and an outer ring, the inner ring comprising a flange formed around its lower edge, ratchet-shaped slowly curving shoulders being provided on the external periphery of the inner ring, a protruding ridge being further provided in the circumferential direction on the thick part of each shoulder, the outer ring fitting into the inner ring with embroidery cloth interposed therebetween, slowly curving ratchet-shaped shoulders being similarly formed on the internal periphery of the outer ring, a groove of a fixed length being provided in the circumferential direction on the outside of each shoulder so that each of the protruding ridges of the outer ring will slidably fit into each of said grooves. This embroidery frame enables to securely stretch embroidery cloth between the inner and outer rings by fitting the outer ring into the inner ring with the cloth interposed therebetween and then slightly revolving either of said two rings.
Inventors
👤 Shizue Tachibana
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-24 22:57
CPC Classifications
D; D05; D05C; D05C1/00; D05C1/02; D05C1/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
126 words
An embroidery frame consisting of a combination of an inner ring and an outer ring: a. said inner ring being annular, and having a flange around the lower edge thereof, ratchet-shaped shoulders each having an easy gradient being provided on the external periphery of said inner ring, and a protruding ridge on the thick part of each said shoulders, b. said outer ring being annular and fitting into the inner ring with cloth interposed therebetween, c. ratchet-shaped shoulders each having an easy gradient formed on the internal periphery of a said outer ring, grooves on the shoulders of said outer ring so that the protruding ridges of the inner ring will fit thereinto an slide from the thick parts toward the thin parts of said shoulders.
Claim 2
Dependent Claim
126 words
An embroidery frame consisting of a combination of an inner ring and an outer ring: a. said inner ring being annular, and having a flange around the lower edge thereof, ratchet-shaped shoulders each having an easy gradient being provided on the external periphery of said inner ring, and a protruding ridge on the thick part of each said shoulders, b. said outer ring being annular and fitting into the inner ring with cloth interposed therebetween, c. ratchet-shaped shoulders each having an easy gradient formed on the internal periphery of a said outer ring, grooves on the shoulders of said outer ring so that the protruding ridges of the inner ring will fit thereinto an slide from the thick parts toward the thin parts of said shoulders.
Claim 3
Dependent Claim
25 words
An embroidery frame as claimed in claim 1, wherein the surface of each protruding ridge of the inner ring is given a fine-grained rough finish.
Claim 4
Dependent Claim
25 words
An embroidery frame as claimed in claim 1, wherein the internal surface of each groove of the outer ring is given a fine-grained rough finish.
Claim 5
Dependent Claim
17 words
An embroidery frame as claimed in claim 1, wherein the body thereof consists of synthetic resin material.