US3651571A - Carpet cutter blade holder - Google Patents

Carpet cutter blade holder Download PDF

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Publication number
US3651571A
US3651571A US887697A US3651571DA US3651571A US 3651571 A US3651571 A US 3651571A US 887697 A US887697 A US 887697A US 3651571D A US3651571D A US 3651571DA US 3651571 A US3651571 A US 3651571A
Authority
US
United States
Prior art keywords
holder
blade
recess
forward end
adjacent
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
US887697A
Other languages
English (en)
Inventor
Richard Bernard Neale
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.)
BETTER CUTTING TOOLS NEWPORT L
Original Assignee
BETTER CUTTING TOOLS NEWPORT L
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 BETTER CUTTING TOOLS NEWPORT L filed Critical BETTER CUTTING TOOLS NEWPORT L
Application granted granted Critical
Publication of US3651571A publication Critical patent/US3651571A/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
    • D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
    • D05C15/04—Tufting
    • D05C15/08—Tufting machines
    • D05C15/16—Arrangements or devices for manipulating threads
    • D05C15/24—Loop cutters; Driving mechanisms therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/005—Hand knives with one or more detachable blades specially adapted for cutting cardboard, or wall, floor or like covering materials

Definitions

  • the invention relates to cutter blade holders and cutter blades for use in the manufacture of tufted carpets.
  • the conventional 52 us. 01 ..30/162, 26/8 strip like blades slide into e holders and are rigidly located 51 1m.
  • the invention relates to cutter blades and holders for use in machines for cutting yarn in the manufacture of tufted carpets.
  • a holder for retaining one or more blades, in which holder there is provided for each blade two grooves for slidably retaining a blade in the holder and abutment means provided on the holder and blade to restrict the sliding movement of the blade in the holder when the blade is correctly positioned.
  • FIG. 1 shows a perspective view of a blade
  • F IG. 2 shows a perspective view of the holder
  • H0. 3 shows a perpendicular view of a modified holder.
  • the blade 1 as shown in FIG. 1 has a cutting edge 2 at one end, a hole 3 at the other end and two flanges 4 and 4' near the perforated end of the blade.
  • the flanges 4 and 4' are stamped out of the sides of the blade 1 and are angled with respect to the blade-by a determined amount.
  • the hole 3 is to enable a hooked tool to be inserted through the hole in the blade to facilitate its removal from the holder 5.
  • the blade 1 To insert the blade 1 into the holder 5, the blade is inserted into the grooves 6 and 6, the cutting edge 2 first, in the direction of the arrow 7 until the abutment or flange 4 is engaged in the slot 8 thus rigidly locating the blade in the holder.
  • a ramp 14 is provided so that the blade is simply pushed into the holder until the abutment 4 is located in the slot 8. This ramp l4 lessens the possibility of a person not inserting a blade to its fullest extent into a holder.
  • the blade is also firmly held at one end of the holder by the holder gripping the edges of the blade. This gripping action is effected by the blade forcing the grooves 6 and 6' apart so that the holder is tensioned at 10 thus causing the grooves to grip part of the longitudinal edges of the blade.
  • the tension effect between the holder grooves 6 and 6' at 10 is effected by bore 11 and slot 12 provided between the grooves.
  • the grooves are slightly tapered towards each other so that the distance between the grooves is slightly less than the width of the blade.
  • a groove 13 may be provided in the end of the holder so as to provide a shoulder against which a tool may rest and act as a lever to lift the blade out of the slot 8 prior to the withdrawal of the blade.
  • a second slot 8 with a shoulder 9' may be provided so that the blade may be withdrawn in the holder to a position where it is nonfunctional that is to say in a noncutting position, without removing the blade from the holder.
  • the forward edge of the slot 8 is provided with a sloping ramp 15 so that the blade when it is located in the slot 8 can be pushed easily forwards in the direction of arrow 7 to locate it securely in its cutting position at 8.
  • a second blade may be disposed on the underside of the holder in a similar manner to that hereinbefore described.
  • a cutter comprising an elongated strip blade having a rear end provided with a transverse projection and a forward end provided with a shargened cuttin edge, ar rd an elongated blade holder for releasa ly but fixe y receiving therein said blade, said blade holder having a support surface adapted to support said blade, said blade holder also having wall means extending longitudinally along the opposite edges of said holder from a point located adjacent the forward end of said holder to a point located intermediate the forward and rearward ends of the holder, said wall means defining a pair of opposed grooves adjacent the forward end of the holder for slideably receiving the opposed edges of the strip blade when the blade is inserted from the rearward end of the holder to thuslocate and hold the strip blade adjacent the blade support surface, said holder also having a recess formed therein between the rear end of said grooves and the rearward end of said holder, said recess being formed at least in part in said blade support surface for receiving therein said transverse
  • a cutter according to claim 1 wherein the rearward end of said holder is provided with further wall means defining a cam ramp for causing resilient deformation of at least a part of said strip blade during insertion of the strip blade into the holder, whereby said projection is then resiliently snapped into said recess when properly aligned therewith.
  • a cutter according to claim 1 wherein the holder is provided with substantially identical structure on opposite sides thereof, and wherein there is provided two substantially identical strip blades disposed substantially parallel to each other and mounted on opposite sides of said holder.
  • said strip blade comprises an elongated plate-like member having a pair of transverse projections provided adjacent the rearward end thereof, said transverse projections being disposed adjacent the opposite longitudinal edges of said blade and projecting laterally outwardly in opposite directions, whereby said blade can be inserted into said holder with either side thereof constituting the upper surface of the blade.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
US887697A 1968-12-24 1969-12-23 Carpet cutter blade holder Expired - Lifetime US3651571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB61439/68A GB1253862A (en) 1968-12-24 1968-12-24 Cutter blade holder

Publications (1)

Publication Number Publication Date
US3651571A true US3651571A (en) 1972-03-28

Family

ID=10487042

Family Applications (1)

Application Number Title Priority Date Filing Date
US887697A Expired - Lifetime US3651571A (en) 1968-12-24 1969-12-23 Carpet cutter blade holder

Country Status (4)

Country Link
US (1) US3651571A (xx)
BE (1) BE743750A (xx)
DE (1) DE1964905A1 (xx)
GB (1) GB1253862A (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5337481A (en) * 1993-03-29 1994-08-16 Mears Michael G Dual blade utility knife
US5490331A (en) * 1995-05-26 1996-02-13 Gold; Peter Utility knife for cutting and scraping
US20080250650A1 (en) * 2007-04-16 2008-10-16 I.D.L. Tech Tools, Llc Utility knife
USD670551S1 (en) 2011-03-01 2012-11-13 Milwaukee Electric Tool Corporation Utility knife
USD686902S1 (en) 2011-03-01 2013-07-30 Milwaukee Electric Tool Corporation Utility knife
USD769693S1 (en) 2015-06-16 2016-10-25 Milwaukee Electric Tool Corporation Utility knife
USD769692S1 (en) 2015-06-16 2016-10-25 Milwaukee Electric Tool Corporation Utility knife
US10144139B2 (en) 2015-04-02 2018-12-04 Milwaukee Electric Tool Corporation Utility knife

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864729A (en) * 1987-08-26 1989-09-12 The Perfectrim Limited Partnership Cutting blade and holder therefor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1434388A (en) * 1920-11-08 1922-11-07 Joseph O Hughes Knife
US1813782A (en) * 1927-11-05 1931-07-07 Gillette Safety Razor Co Surgical knife
US2064176A (en) * 1934-01-25 1936-12-15 Bardparker Company Inc Detachable blade knife
US2725629A (en) * 1954-10-04 1955-12-06 William D Todhunter Surgical dissection scissors
US3171201A (en) * 1963-09-03 1965-03-02 Carifi Ralph Razor blade holders

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1434388A (en) * 1920-11-08 1922-11-07 Joseph O Hughes Knife
US1813782A (en) * 1927-11-05 1931-07-07 Gillette Safety Razor Co Surgical knife
US2064176A (en) * 1934-01-25 1936-12-15 Bardparker Company Inc Detachable blade knife
US2725629A (en) * 1954-10-04 1955-12-06 William D Todhunter Surgical dissection scissors
US3171201A (en) * 1963-09-03 1965-03-02 Carifi Ralph Razor blade holders

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5337481A (en) * 1993-03-29 1994-08-16 Mears Michael G Dual blade utility knife
US5490331A (en) * 1995-05-26 1996-02-13 Gold; Peter Utility knife for cutting and scraping
US20080250650A1 (en) * 2007-04-16 2008-10-16 I.D.L. Tech Tools, Llc Utility knife
USD670551S1 (en) 2011-03-01 2012-11-13 Milwaukee Electric Tool Corporation Utility knife
USD686902S1 (en) 2011-03-01 2013-07-30 Milwaukee Electric Tool Corporation Utility knife
USD686901S1 (en) 2011-03-01 2013-07-30 Milwaukee Electric Tool Corporation Utility knife
USD810539S1 (en) 2011-03-01 2018-02-20 Milwaukee Electric Tool Corporation Utility knife
USD848234S1 (en) 2011-03-01 2019-05-14 Milwaukee Electric Tool Corporation Utility knife
US10144139B2 (en) 2015-04-02 2018-12-04 Milwaukee Electric Tool Corporation Utility knife
US11724408B2 (en) 2015-04-02 2023-08-15 Milwaukee Electric Tool Corporation Utility knife
USD769693S1 (en) 2015-06-16 2016-10-25 Milwaukee Electric Tool Corporation Utility knife
USD769692S1 (en) 2015-06-16 2016-10-25 Milwaukee Electric Tool Corporation Utility knife

Also Published As

Publication number Publication date
BE743750A (xx) 1970-05-28
GB1253862A (en) 1971-11-17
DE1964905A1 (de) 1970-08-06

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