US2957269A - Stretching frame - Google Patents

Stretching frame Download PDF

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Publication number
US2957269A
US2957269A US794691A US79469159A US2957269A US 2957269 A US2957269 A US 2957269A US 794691 A US794691 A US 794691A US 79469159 A US79469159 A US 79469159A US 2957269 A US2957269 A US 2957269A
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US
United States
Prior art keywords
ring
stretching
segments
fabric
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US794691A
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English (en)
Inventor
Nohl Walter
Streng Alfred
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nowibag A G
NOWIBAG AG
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Nowibag A G
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nowibag A G filed Critical Nowibag A G
Application granted granted Critical
Publication of US2957269A publication Critical patent/US2957269A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C1/00—Apparatus, devices, or tools for hand embroidering
    • D05C1/02—Work frames
    • D05C1/04—Work frames circular

Definitions

  • This invention relates to a new and useful stretching fiame to be used particularly for stretching a fabric to do embroidery or mending work.
  • Stretching frames of this type also called embroidery frames or tambour frames usually consist of an inner and an outer stretching ring, one of these rings being an open ring which is located within or around the closed ring, so that it keeps the fabric to be embroidered in place, either due to the tension of the ring itself or due to tensioning members acting at the two ends of the open ring.
  • a sufiicient stretching of the fabric could only be obtained by expanding or by contracting the open ring. This, ho'wever, has the undesired effect, that the open ring loses its circular form, so that the fabric is not equally gripped and secured along the circumference of the frame.
  • a further object of the invention is to provide a stretching frame that is easy to operate.
  • a still further object of the invention is to provide an equal tensioning of the fabric, along the circumference of the frame, independently of the thickness of the fab-
  • the invention consists in a stretching frame comprising inner and outer stretching rings, one of these rings carrying clamping members which yieldingly engage the other ring.
  • Fig. 1 shows a transverse section of the two rings of the frame in separated position
  • Fig. 2 is a transverse section with the two stretching rings in operative position
  • Fig. 3 is a plan view of the stretching frame with parts broken away
  • Fig. 4 represents a fragmentary perspective view of a second embodiment of the invention.
  • the inner stretching ring 1 has an annular abutment flange 3 surrounding the upper end of the ring body 2. From this end of the ring body the inner ring surface 4 tapers inwardly whereas the outer ring surface 5 slightly tapers outwardly to the other end, where the edge is rounded or chamfered.
  • the angle of the outer ring surface 5 with respect to an axially extending plane preferably is 2.
  • the outer stretching ring 6 is formed of clamping jaws 7 constituting annular segments (see also Fig. 3), which are connected together by means of elastic connecting links 8 bridging the spaces between the segments 7.
  • the outer stretching ring 6 is made of one piece.
  • the segments 7 are provided with slots 9 so that the segments 7 are of U-shaped cross section, the U being open towards the bottom surface 10.
  • the inner surface of the segments is provided with V-shaped ribs preferably forming an angle of 60.
  • the V-shaped ribs 11 are urged against the outer ring surface 5 of the inner stretching ring, due to the tension created by the ice resilient connecting links 8.
  • the inside diameter of the outer stretching ring 6 and the outside diameter of the inner stretching ring 1 are adjusted so that, upon the insertion of one ring into the other, the segments 7 are pressed slightly radially outwards, thereby elastically stretching the connecting links 8.
  • the fabric is laid on the outer stretching ring 6. Then, the inner stretching ring 1 is placed on the fabric, centered with respect to the outer stretching ring, and pushed into it as far as the abutment flange allows. Thereby the ribs 11 come successively into contact with the fabric and brake its movement with respect to the outer stretching ring 6, so that the fabric is not only kept between the stretching rings, but also tightly stretched over the inner stretching ring. Under these circumstances no special tensioning operation is required as it was necessary on known types of stretching frames.
  • the stretching frame is preferably made of die-cast plastic.
  • the design of the rings is such that they can be easily molded. However, it is possible to use other materials, also metals, either alone or in combination, whereby they may be machined in any desired manner.
  • clamp jaws 13 have been formed by cutting slots 12 into the material of the inner ring.
  • the clamping effect can be obtained by torsional straining of the bridge between the clamp jaws and/or by the deformation of the clamp jaws themselves.
  • the bridge has a bead 15 which engages behind a bead 16 of the outer stretching ring 17.
  • the segments of the outer stretch ring are kept together by a ring of plastic material.
  • the segments are arranged within a solid ring with a layer of elastic links being embedded between them, or the segments themselves are made of an elastic material.
  • the segments 7 are shown in Fig. 3 can also be designed as clamp jaws having a plane clamping surface. In this case, when a section is made through the outer ring, the intersectional lines at the clamping surfaces would form a polygon. The section through the outer stretching ring could also be a polygon.
  • an inner ring with a cylindrical clamping surface can be used, to which surface the plane surfaces of the outer ring are fitting.
  • This arrangement can also be reversed so that the clamping parts having a plane clamping surface are arranged on the inner stretching ring. It is also possible to conugate the inner or the outer stretching ring and to obtain the stretching tension by a suitable design and by the selection of an appropriate material.
  • a stretching frame comprising an inner ring and an outer ring fittable one within the other, said outer ring including a plurality of clamping jaws exerting a resiliently yielding pressure on the inner ring and having gripping ribs extending in a plane parallel to the plane of the rings to engage a surface of the inner ring and retain therebetween the material to be stretched, the rib engaging surface of said inner ring being slightly inclined with respect to the axis of the ring so thattthe outside diameter of said inner ring near one side thereof is greater than the outside diameter near the other side whereby upon insertion of the inner ring into the outer ring the outer ring will be slightly expanded.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US794691A 1958-02-27 1959-02-20 Stretching frame Expired - Lifetime US2957269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH5640858A CH362592A (de) 1958-02-27 1958-02-27 Stoffhalter zum Einspannen eines zu bearbeitenden, insbesondere zu bestickenden oder zu stopfenden Stoffes

Publications (1)

Publication Number Publication Date
US2957269A true US2957269A (en) 1960-10-25

Family

ID=4520486

Family Applications (1)

Application Number Title Priority Date Filing Date
US794691A Expired - Lifetime US2957269A (en) 1958-02-27 1959-02-20 Stretching frame

Country Status (2)

Country Link
US (1) US2957269A (de)
CH (1) CH362592A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541648A (en) * 1966-08-01 1970-11-24 Commissariat Energie Atomique Glove mounting ring device to permit of performing operations in a sealed container
US3596385A (en) * 1970-06-10 1971-08-03 Shizue Tachibana Embroidery frame
US3755048A (en) * 1970-04-03 1973-08-28 Texas Instruments Inc Apparatus for use in semiconductor cleaning and transferring processes
US3906647A (en) * 1974-10-31 1975-09-23 C J Bates & Son Inc Hoop for embroidery and the like
EP0085638A1 (de) * 1982-02-05 1983-08-10 Société Industrielle de décoration et application "SIDA" Société à Responsabilité limitée dite Stickrahmen bestehend aus mehreren sich ineinanderfügenden Elementen
US4494344A (en) * 1983-04-22 1985-01-22 Coburn Optical Industries, Inc. Wrinkle prevention frame for lens manufacture
US5133140A (en) * 1990-10-24 1992-07-28 Uniek Plastics, Inc. Frame with fabric securing toothed strips or moldings and method
US20090107017A1 (en) * 2006-05-25 2009-04-30 Junichi Kuwabara Auxiliary tool for handcrafting
US20110252611A1 (en) * 2010-04-19 2011-10-20 Artificial Muscle, Inc. Portable multipoint tenter
US9609963B1 (en) * 2016-01-17 2017-04-04 Lisa Ansorge Ratnow Apparatus and method for storing and displaying memorabilia
US20190017204A1 (en) * 2017-07-11 2019-01-17 B&C Nelson, LLC Embroidery workpiece holding device
US10272541B2 (en) 2016-01-22 2019-04-30 Rohm and Haas Electronic Matericals CMP Holdings, Inc. Polishing layer analyzer and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642924A (en) * 1984-01-10 1987-02-17 Blue Bell, Inc. Embroidery hoop

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US191140A (en) * 1877-05-22 Improvement in bracelets
US627821A (en) * 1897-04-22 1899-06-27 Butler Hard Rubber Company Embroidery-ring.
US671474A (en) * 1900-03-10 1901-04-09 Ralph R Essig Embroidery-ring.
US1093136A (en) * 1913-09-03 1914-04-14 Albert Jucker Tensioning-frame for fabric to be embroidered and the like.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US191140A (en) * 1877-05-22 Improvement in bracelets
US627821A (en) * 1897-04-22 1899-06-27 Butler Hard Rubber Company Embroidery-ring.
US671474A (en) * 1900-03-10 1901-04-09 Ralph R Essig Embroidery-ring.
US1093136A (en) * 1913-09-03 1914-04-14 Albert Jucker Tensioning-frame for fabric to be embroidered and the like.

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541648A (en) * 1966-08-01 1970-11-24 Commissariat Energie Atomique Glove mounting ring device to permit of performing operations in a sealed container
US3755048A (en) * 1970-04-03 1973-08-28 Texas Instruments Inc Apparatus for use in semiconductor cleaning and transferring processes
US3596385A (en) * 1970-06-10 1971-08-03 Shizue Tachibana Embroidery frame
US3906647A (en) * 1974-10-31 1975-09-23 C J Bates & Son Inc Hoop for embroidery and the like
EP0085638A1 (de) * 1982-02-05 1983-08-10 Société Industrielle de décoration et application "SIDA" Société à Responsabilité limitée dite Stickrahmen bestehend aus mehreren sich ineinanderfügenden Elementen
FR2521181A1 (fr) * 1982-02-05 1983-08-12 Sida Soc Decoration Applic Cadre a broder specialement adapte a une mise en place precise et rapide d'un article sur le plateau d'une machine a broder
US4485574A (en) * 1982-02-05 1984-12-04 Societe Industrielle De Decoration Et Application S.I.D.A. Three-section hoop embroidery frame
US4494344A (en) * 1983-04-22 1985-01-22 Coburn Optical Industries, Inc. Wrinkle prevention frame for lens manufacture
US5133140A (en) * 1990-10-24 1992-07-28 Uniek Plastics, Inc. Frame with fabric securing toothed strips or moldings and method
US20090107017A1 (en) * 2006-05-25 2009-04-30 Junichi Kuwabara Auxiliary tool for handcrafting
US8074384B2 (en) * 2006-05-25 2011-12-13 Clover Mfg. Co., Ltd. Auxiliary tool for handcrafting
US20110252611A1 (en) * 2010-04-19 2011-10-20 Artificial Muscle, Inc. Portable multipoint tenter
US9609963B1 (en) * 2016-01-17 2017-04-04 Lisa Ansorge Ratnow Apparatus and method for storing and displaying memorabilia
US10272541B2 (en) 2016-01-22 2019-04-30 Rohm and Haas Electronic Matericals CMP Holdings, Inc. Polishing layer analyzer and method
US20190017204A1 (en) * 2017-07-11 2019-01-17 B&C Nelson, LLC Embroidery workpiece holding device
US10711379B2 (en) * 2017-07-11 2020-07-14 Chelsea Nelson Embroidery workpiece holding device

Also Published As

Publication number Publication date
CH362592A (de) 1962-06-15

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