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US3358541A - Shear-type cutter assembly - Google Patents

Shear-type cutter assembly Download PDF

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Publication number
US3358541A
US3358541A US52213366A US3358541A US 3358541 A US3358541 A US 3358541A US 52213366 A US52213366 A US 52213366A US 3358541 A US3358541 A US 3358541A
Authority
US
United States
Prior art keywords
blades
support
cutter
blade assembly
housing
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
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English (en)
Inventor
Frei Karl
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.)
Gebr FREI
Original Assignee
Gebr FREI
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 Gebr FREI filed Critical Gebr FREI
Application granted granted Critical
Publication of US3358541A publication Critical patent/US3358541A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D29/00—Hand-held metal-shearing or metal-cutting devices
    • B23D29/002—Hand-held metal-shearing or metal-cutting devices for cutting wire or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8735—With means providing for plural steps in tool stroke
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8765—Magnet- or solenoid-actuated tool
    • Y10T83/8768—Solenoid core is tool or tool support

Definitions

  • This invention relates generally to cutting tools and more particularly to a novel shears-type cutter.
  • Primary objects of the present invention are to provide novel power operated shears in which a piece of thread or the like can be brought into close proximity to an area in which it will be severed upon activation of the shears; the shears are normally stored in a protected position within a housing; and novel blade actuating means are provided for the cooperating cutting blades of the shears.
  • FIG. 1 is a bottom plan view of a shears-type cutter assembly illustrating the invention, with parts broken away to show details, and showing by means of phantom lines the cutting position of the cutter blades;
  • FIG. 2 is a longitudinal section taken on the plane of line 2--2 of FIG. 1, showing by phantom lines the actuated position of the parts.
  • a power operated shears is indicated generally at 10 and comprises a body member 12 including a power section 14 from which projects a forwardly disposed housing section 16.
  • the power section 14 includes a preferably, but not necessarily, cylindrical shell 18, closed at the rear end 20 in any suitable manner, and in this exemplary embodiment, by the flange 21 of a mounting bracket 22.
  • Suitable electrical connecting posts or the like are provided at 24 for the purpose of supplying electrical current to the solenoid-operator to be described in detail.
  • the power means in this exemplary embodiment is illustrated as being a solenoid, other comparable means (although not shown) could be utilized.
  • the shell 18 includes therein a suitably energized solenoid coil 26 having an axial bore 28 in which is disposed a magnetically-attractive armature indicated generally at 30.
  • the armature 30 comprises a shaft portion 32 normally disposed within the bore 28 and having joined thereon an intermediate shoulder portion 34 and a terminal head 36.
  • a return spring 40 Circumposed about the shaft 32 in engagement between the inner surface of the forward wall 38 of the shell 18 and the shoulder portion 34 is a return spring 40 which normally maintains the parts in the positions shown in solid lines on the drawing.
  • the shell 18 has integrally fixed thereto a forwardly projecting, downwardly-opening housing or cover element 42, which is of suflicient length to normally cover or enclose the cutter blades of the shears.
  • the armature shaft portion 32 projects through an aperture 44 of the wall 38 of the shell, and has fixed to the portion 46 projecting therethrough, a cutter blade support bracket 48 which is apertured at 50.
  • a headed shaft element 52 Projecting through the aperture 50 is a headed shaft element 52, upon which is journaled for free pivotal action a pair of juxtaposed scissor-type blades 54 and 56 which include mutually cooperating, opposed cutting edges 58 and 60, respectively; see FIG. 1.
  • the shaft element 52 includes compression spring pressing blades 54 and 56 "ice into overlying relation, and a suitable lock washer 58 is provided to hold the parts in assembled relation.
  • the blades 54 and 56 are normally sheltered or protected within the cover 42, protected from dust and foreign matter.
  • the lower blade 56 has integrally joined therewith an angular lever portion 62 which is of a length suflicient to protrude through the side of the cover 42.
  • the upper blade 54 includes an angular lever 64 which is of a length suflicient to protrude through the cover 42.
  • the housing includes a pair of opposed guide slots 66 and 68 (see FIG. 1) through which the terminal ends of the levers 62 and 64 project. The parts are normally in the solid line position shown in FIG. 1 due to the return action of spring 40 on the armature.
  • a piece of thread or the like is indicated at T, in a clearly visible and in a readily accessible position forward of and in the path of travel of the blades 54 and 56 and will be severed thereby when the blade edges 58 and 60 cross in shearing relation.
  • a cutter assembly comprising a body member including power means operatively connected to a reciprocable blade support;
  • a cutter blade assembly mounted on said support for movement therewith from a normal position to an extended position
  • said blades including operating lever means
  • a housing on said body member disposed at least partially about said cutter blade assembly for normally protecting the same when the blades are in the normal position;
  • said housing including abutment portions engageable with said lever means for engagng the same in response to reciprocation of said blade support for causing an intersecting shear action when the blade assembly is extended to the cutting position.
  • said power means comprises an electrical coil
  • said blade support comprising an armature axially reciprocable in said electrical coil
  • a return spring in said body member and engaged with said armature and normally maintaining said blade assembly in a retracted position.
  • lever means comprises a lever element integral with each of said respective blades and disposed angularly therefrom.
  • said housing includes a pair of opposed guide slots through which the terminal ends of said lever elements respectively project, the guide slots including forward and rear limits 4 comprising said portions for engaging said lever means to cause said intersecting shearaction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)
  • Treatment Of Fiber Materials (AREA)
US52213366 1965-06-25 1966-01-21 Shear-type cutter assembly Expired - Lifetime US3358541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF28317U DE1922432U (de) 1965-06-25 1965-06-25 Elektromagnetischer fadenabschneider an textilmaschinen, mit vorschiebbarer schere.

Publications (1)

Publication Number Publication Date
US3358541A true US3358541A (en) 1967-12-19

Family

ID=33333734

Family Applications (1)

Application Number Title Priority Date Filing Date
US52213366 Expired - Lifetime US3358541A (en) 1965-06-25 1966-01-21 Shear-type cutter assembly

Country Status (2)

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US (1) US3358541A (de)
DE (1) DE1922432U (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570353A (en) * 1968-05-13 1971-03-16 Heberlein & Co Ag Electromagnetic cutting device with change-over switch
DE2745114A1 (de) * 1977-10-07 1979-04-12 Wolter Baudat E Kg Schere, insbesondere kabelschneider
US6178643B1 (en) 1999-07-08 2001-01-30 Electroline Corporation Hand-held ratchet action tool
US6550365B1 (en) 1997-06-10 2003-04-22 Weidong Zhang Coping saw
US6971179B2 (en) 2002-09-27 2005-12-06 Electroline Corporation Cutting tool
US20060070245A1 (en) * 2002-09-27 2006-04-06 Erbrick Robert S Cutting tool with work piece feed mechanism
US20180229316A1 (en) * 2017-02-12 2018-08-16 Verco Decking Inc. Decking tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1028690A (en) * 1912-01-11 1912-06-04 Archie Drury Heading device for kafir corn and the like.
US1086223A (en) * 1911-12-04 1914-02-03 Louis Hefter Cutting mechanism for neck-making machines.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1086223A (en) * 1911-12-04 1914-02-03 Louis Hefter Cutting mechanism for neck-making machines.
US1028690A (en) * 1912-01-11 1912-06-04 Archie Drury Heading device for kafir corn and the like.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570353A (en) * 1968-05-13 1971-03-16 Heberlein & Co Ag Electromagnetic cutting device with change-over switch
DE2745114A1 (de) * 1977-10-07 1979-04-12 Wolter Baudat E Kg Schere, insbesondere kabelschneider
US6550365B1 (en) 1997-06-10 2003-04-22 Weidong Zhang Coping saw
US6178643B1 (en) 1999-07-08 2001-01-30 Electroline Corporation Hand-held ratchet action tool
US6971179B2 (en) 2002-09-27 2005-12-06 Electroline Corporation Cutting tool
US20060070245A1 (en) * 2002-09-27 2006-04-06 Erbrick Robert S Cutting tool with work piece feed mechanism
US7346987B2 (en) 2002-09-27 2008-03-25 Electroline Corporation Cutting tool with work piece feed mechanism
US20180229316A1 (en) * 2017-02-12 2018-08-16 Verco Decking Inc. Decking tool
US10933478B2 (en) * 2017-02-12 2021-03-02 Verco Decking Inc. Decking tool

Also Published As

Publication number Publication date
DE1922432U (de) 1965-08-26

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