US3564893A - Combined cutting,punching and bending tool - Google Patents

Combined cutting,punching and bending tool Download PDF

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Publication number
US3564893A
US3564893A US3564893DA US3564893A US 3564893 A US3564893 A US 3564893A US 3564893D A US3564893D A US 3564893DA US 3564893 A US3564893 A US 3564893A
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ram
punch
metal
die
strip
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Richard E Richards
Gary A Selva
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SELVA AND SONS Ltd E
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SELVA AND SONS Ltd E
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/869Means to drive or to guide tool
    • Y10T83/8821With simple rectilinear reciprocating motion only
    • Y10T83/8828Plural tools with same drive means
    • Y10T83/8831Plural distinct cutting edges on same support

Abstract

THIS INVENTION RELATES TO A COMBINED TOOL THAT CAN, IN TURN, CUT, PUNCH AND BEND A STRIP OF METAL TO FORM A METAL HANGER. THE PUNCH AND ONE OF THE CUTTING SHEARS ARE MOUNTED ON THE RAM OF THE BREAK THAT PERFORMS THE BENDING OPERATION SO THAT A COMMON OPERATING HANDLE CAN BE PROVIDED FOR ALL OPERATIONS.

Description

Feb. 23, 1971 R mc ET AL 3,564,893
COMBINED CUTTING. PUNCHING AND BENDING TOOL Filed Feb. 5, 1968 /N v/;/ (m RICHARD E RICHARDS GARY 13% SELVA ATTORN EYS United States Patent 3,564,893 COMBINED CUTTING, PUNCHING AND BENDING TOOL Richard E. Richards, Bramalea, Ontario, and Gary A.
Selva, Toronto, Ontario, Canada, assignors to E. Selva & Sons Limited, Toronto, Ontario, Canada Filed Feb. 5, 1968, Ser. No. 702,872
Int. Cl. B21d 28/26, 31/02, 37/00, 43/28; B26d /10 US. Cl. 72-326 1 Claim ABSTRACT OF THE DISCLOSURE This invention relates to a combined tool that can, in turn, cut, punch and bend a strip of metal to form a metal hanger. The punch and one of the cutting shears are mounted on the ram of the break that performs the bending operation so that a common operating handle can be provided for all operations.
This invention relates to a combined cutting, punching and bending tool.
In the sheet metal and related trades, it is practice to secure components, such as ducts, pipes and the like, into position by means of metal hangers. These hangers are formed from strip steel, which the workman cuts as required from a roll or a flat strip of steel and then forms it with his required bends and holes. The cutitng and forming cannot, as a general rule, be factory done because every job has a diiTerent requirement and the workman must custom make his hangers for every situation that he encounters. The time-honoured practice in the trade has been for the workman to snip off a piece of metal from a roll with a pair of metal cutting snips, drill or punch the necessary holes with a separate drill or punching device, and then bend the strip as required with a pair of pliers, vice or other separate bending tool. These operations are relatively time-consuming and, therefore, costly. There are, of course, in practically every instance better tools for doing the particular job than the workman has used, but these tools are shop tools and the workman cannot transport them to each particular job nor can he attend at a shop to do the necessary operations. He has, therefore, over the years, put up with the inconvenience and inefiiciency of the tools that he has had available to him.
It is, therefore, a principal object of this invention to provide a simple, compact, easily transportable tool that is capable of efficiently cutting, punching and bending a strip of metal for the purpose of making a metal hanger or the like.
With this and other objects in view, a machine tool according to this invention, comprises a base, a break bed on said base, a ram for said break bed, means for reciprocating said ram into and out of operative engagement with said break bed, a die, a punch for said die, one of said punch or said die being mounted on said base, the other of said punch or said die being carried by said ram whereby they are carried into and out of operative relationship with each other as said ram is operated by said means for reciprocating said ram, a first shear blade, a second shear blade, one of said first or second shear blades being mounted on said base, the other of said first and second shear blades being carried by said ram whereby they are carried into and out of operative relationship with each other as said ram is operated by said means for reciprocating said ram. The invention will be clearly understood after reference to the following detailed specification read in conjunction with the drawings.
In the drawings:
FIG. 1 is a perspective view of a machine tool according to this invention;
ice
FIG. 2 is a partial view of the break section of the machine showing the break bending a piece of metal;
FIG. 3 is a partial section of the punch section of the machine showing the punch through a piece of metal;
FIG. 4 is a partial section of the cutters showing the cutters cutting through a piece of metal; and
FIG. 5 is a view of a hanger bent by the tool.
Referring to the drawings, the machine tool thereshown comprises a steel base 10 mounted on a wooden stand 12. As indicated above, the tool is adapted to bend a strip of metal, to punch a strip of metal and to cut a strip of metal.
The bending operation is achieved by means of a break that consists of a break bed 14 welded to the base 10 and formed with a break surface that is adapted to bend a strip of metal to The ram 16 for the break 14 is reciprocated within the ram mounting that consists essentially of guide channels formed by strap 18, 20 and 22 by means of a manually operated handle 24. The manually operated handle 24 is pivoted to swing about the base 10 as at 26 and connects with the ram 16 by means of pin 28. A slotted opening at pin 28 in the handle 24 permits the reciprocating movement of the ram '16 as the handle 24 is pivoted about the pivot point 26.
In use, if one wants to bend a piece of metal 38 in the break, one places it at the location where the bend is desired in the break bed 14 and depresses the handle 24 to cause the cooperating end of the ram 16 to press against the metal and form it into the shape of the bed 14, as illustrated in FIG. 2. Bed 14- has a 90 bend, which is the bend commonly required in a hanger assembly.
The tool, however, is designed to achieve the cutting and punching operations that are commonly required in the making of hangers by manipulation of the handle 24 and through the cooperation of appropriate elements mounted on the ram 16 and the base 10.
The punching operation commonly required in the manufacture of hangers is achieved by means of the die 30, which is rigidly mounted on the base 10 at the location of the guide 22 and a cooperating punch 32 that is rigidly mounted on the ram 16. The mounting for the die is formed with an appropriate slot adapted to receive a strip of hanger material and, in use, the handle 24 is actuated to cause the punch to enter the strip of material 38 and the die to punch an appropriate sized hole, as illustrated in FIG. 3 of the drawings. It will be apparent that the punch and die must be arranged so that the punching operation is completed before the ram reaches the full extent of its travel as determined by its cooperation with the break bed 14.
Numeral 33 is a cover that is screwed into place over the punch to prevent improper access to the punch.
The cutting operation is similarly performed. In this case, there is a pair of cooperating blades 34 and 36. The blade 34 is rigidly mounted on the ram 16, while the 00- operating blade 36 is rigidly mounted on the base at the location of the guide channel 20. Blades '34 and 36 move past each other in shearing relation and are adapted to cut a strip of metal hanger material 38 as they do so, as shown in FIG. 4 of the drawings. Here again, it will be apparent that the relative movement of the blades, to achieve a cutting operation, must be achieved before the ram achieves its full extent of movement as determined by its mating with the break bed.
It will be noted the punch 32 is set into a hole in the upwardly extending post on the ram. It is maintained in position by means of a set screw 37 that engages in a circumferentially extend groove in the end of the punch. The die 30 is screw-threaded into a through hole in the projection on the base and it is secured into position by 3 means of a set screw 35 that bears against a piece of nylon that overlays the threaded die.
In order to align the die and punch mountings, one first drills a hole of small size through the projection on the base that houses the die and into the portion of the ram that houses the punch. The hole is then reamed out in the portion that is to house the punch to a size to accommodate the base of the punch. The portion of the hole that extends through the die retaining post 30 is then reamed out to a larger size to a diameter to house the die. The enlarged die hole is then threaded to receive the die. The punch is first mounted in position and secured by means of the thread screw and then the die is mounted in position and set in position by means of its set screw.
In use, one first determines the hanger requirements and then cuts a strip of metal from a larger piece by manipulating the handle 24 to operate the cutting blades. The strip so cut is then punched as required by manipulating the handle 24 to operate the punch and die 30 and 32. The strip so cut and punched is then formed with the required number of 90 bends by manipulating the handle to operate the ram and break. FIG. 5 shows a hanger 40 that was cut, punched and bent from a strip of metal with the machine.
The invention is very simple and very materially reduces the time that is required to form a hanger. The tool is portable and can be practically used by workmen on the job. The job once completed, is neat and accurate.
We claim:
1. A machine tool comprising a base, a break bed on said base, a ram slidable in guide means fixed to said base and having its free end formed for and disposed in cooperative relationship With said break bed, means for reciprocating said ram in said guide means to carry the free end thereof into and out of cooperative engagement with said 'break bed, a die, a punch for said die, one of said die or said punch being mounted on said guide means to overlie the upper surface of said ram, the other being carried by the upper surface of said ram, and both the die and punch being disposed so that they are carried into and out of operative relationship with each other as said ram is operated by said means for reciprocating said ram, 21 first shear blade, a second shear blade, both blades being oriented normal to the base and one of said first or second shear blades being mounted on said guide means to extend above the upper surface of said ram, and the other being carried by the upper surface of said ram, and both blades being disposed so that they are carried into and out of operative relationship with each other as said ram is operated by said means for reciprocating said ram.
References Cited UNITED STATES PATENTS 484,369 10/1892 Horner 83620 1,272,068 7/1918 McClure et al 83620 2,023,638 12/1935 Lawson 29155 3,468,206 9/1969 Bakula 83599 CHARLS W. LANHAM, Primary Examiner E. M. COMBS, Assistant Examiner US. Cl. X.R.
US3564893D 1968-02-05 1968-02-05 Combined cutting,punching and bending tool Expired - Lifetime US3564893A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041753A (en) * 1976-07-26 1977-08-16 Hix Alfred G O Press brake attachment for forming and cutting metal
US5142958A (en) * 1990-11-05 1992-09-01 Greenlee Textron Inc. Cutter for din rail
US6314851B1 (en) 1997-07-25 2001-11-13 Newell Operating Company Dual mini-blind cutter
US20020062723A1 (en) * 1999-07-23 2002-05-30 Norbert Marocco Blind cut down machine
US20030125178A1 (en) * 2001-12-31 2003-07-03 Boyce Penn Apparatus and method for working with sheet material
US6604443B2 (en) 2001-07-23 2003-08-12 Newell Window Furnishings, Inc. Blind and shade cutting center
US20040064929A1 (en) * 2002-10-08 2004-04-08 Yokabitus Robert P. Shelf formation system and method
US20040069104A1 (en) * 2001-07-23 2004-04-15 Caputo Thomas A. Modular blind cutting center
US20040173079A1 (en) * 2003-03-03 2004-09-09 Caputo Thomas A. Adjustable blind cutting device
US20040173076A1 (en) * 2003-03-03 2004-09-09 Joseph Potts Automatically configurable blind cutting center
US20040173078A1 (en) * 2003-03-03 2004-09-09 Sean Gilboy Blind cutting center
US6973364B2 (en) 2003-03-03 2005-12-06 Schwartz David A Remotely connected blind cutting center
US7036412B2 (en) 2003-03-03 2006-05-02 Newell Window Furnishings, Inc. Blind cutting center with detachable vacuum bag
US20070239551A1 (en) * 2006-03-30 2007-10-11 Zeller Michelle G Method and apparatus for a product ordering system
USRE40605E1 (en) 1997-12-18 2008-12-16 Springs Window Fashions, Llc Cutting apparatus for window coverings and methods therefor
US20090031876A1 (en) * 2007-07-31 2009-02-05 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US20100037743A1 (en) * 1999-07-23 2010-02-18 Shade-O-Matic Limited Blind cut down machine
US20110056348A1 (en) * 2007-07-31 2011-03-10 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US20110056353A1 (en) * 2007-07-31 2011-03-10 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US20110056345A1 (en) * 2007-07-31 2011-03-10 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US20110061505A1 (en) * 2007-07-31 2011-03-17 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US8479925B2 (en) 2010-07-19 2013-07-09 Newell Window Furnishings, Inc. Display system
CN105033043A (en) * 2015-07-01 2015-11-11 李忠杰 Manufacturing method for stainless steel trousers rack
US9266639B2 (en) 2010-07-19 2016-02-23 Newell Window Furnishings, Inc. Blind packaging and methods of cutting window coverings

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GB2181085B (en) * 1985-10-07 1989-01-18 Mega Electronics Limited A guillotine
US5495739A (en) * 1991-09-13 1996-03-05 Beecher; Roy Apparatus for forming scrolls from strip material

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041753A (en) * 1976-07-26 1977-08-16 Hix Alfred G O Press brake attachment for forming and cutting metal
US5142958A (en) * 1990-11-05 1992-09-01 Greenlee Textron Inc. Cutter for din rail
US6314851B1 (en) 1997-07-25 2001-11-13 Newell Operating Company Dual mini-blind cutter
USRE40605E1 (en) 1997-12-18 2008-12-16 Springs Window Fashions, Llc Cutting apparatus for window coverings and methods therefor
US20020062723A1 (en) * 1999-07-23 2002-05-30 Norbert Marocco Blind cut down machine
US7017459B2 (en) 1999-07-23 2006-03-28 Shade-O-Matic Limited Blind cut down machine
US7918150B2 (en) 1999-07-23 2011-04-05 Shade-O-Matic Limited Blind cut down machine
US20100037743A1 (en) * 1999-07-23 2010-02-18 Shade-O-Matic Limited Blind cut down machine
US20040069104A1 (en) * 2001-07-23 2004-04-15 Caputo Thomas A. Modular blind cutting center
US8161857B2 (en) 2001-07-23 2012-04-24 Newell Window Furnishings, Inc. Blind and shade cutting center for cutting two different window covering products
US8286538B2 (en) 2001-07-23 2012-10-16 Newell Window Furnishings, Inc. Blind and shade cutting center for cutting two different window covering products
US20100107839A1 (en) * 2001-07-23 2010-05-06 Newell Window Furnishings, Inc. Blind and shade cutting center for cutting two different window covering products
US7681480B2 (en) 2001-07-23 2010-03-23 Newell Window Furnishings, Inc. Blind and shade cutting center for cutting two different window covering products
US7100485B2 (en) 2001-07-23 2006-09-05 Newell Window Furnishings, Inc. Blind and shade cutting center
US7007576B2 (en) 2001-07-23 2006-03-07 Newell Window Furnishings, Inc. Method of positioning a window covering in a sizing mechanism
US6604443B2 (en) 2001-07-23 2003-08-12 Newell Window Furnishings, Inc. Blind and shade cutting center
US8499670B2 (en) 2001-07-23 2013-08-06 Newell Window Furnishings, Inc. Modular blind cutting center
US7040205B2 (en) 2001-07-23 2006-05-09 Newell Window Furnishings, Inc Blind and shade cutting center with movable cutting station
US7104175B2 (en) 2001-07-23 2006-09-12 Newell Window Furnishings, Inc. Blind and shade cutting center with center locating system
US7069832B2 (en) 2001-07-23 2006-07-04 Newell Window Furnishings, Inc. Blind and shade cutting center with movable locator
US7069833B2 (en) 2001-07-23 2006-07-04 Newell Window Furnishings, Inc. Moveable blind and shade cutting center
US20030209118A1 (en) * 2001-07-23 2003-11-13 Roberts David C. Method of positioning a window covering ina sizing mechanism
US20030125178A1 (en) * 2001-12-31 2003-07-03 Boyce Penn Apparatus and method for working with sheet material
US6949061B2 (en) 2001-12-31 2005-09-27 Boyce Penn Apparatus for working with sheet material
US20040064929A1 (en) * 2002-10-08 2004-04-08 Yokabitus Robert P. Shelf formation system and method
US20040173076A1 (en) * 2003-03-03 2004-09-09 Joseph Potts Automatically configurable blind cutting center
US7036412B2 (en) 2003-03-03 2006-05-02 Newell Window Furnishings, Inc. Blind cutting center with detachable vacuum bag
US6973364B2 (en) 2003-03-03 2005-12-06 Schwartz David A Remotely connected blind cutting center
US20110088524A1 (en) * 2003-03-03 2011-04-21 Newell Window Furnishings, Inc. Automatically Configurable Blind Cutting Center
US20040173078A1 (en) * 2003-03-03 2004-09-09 Sean Gilboy Blind cutting center
US7178439B2 (en) 2003-03-03 2007-02-20 Newell Window Furnishings, Inc. Blind cutting center
US7810418B2 (en) 2003-03-03 2010-10-12 Newell Window Furnishings, Inc. Automatically configurable blind cutting center
US20040173079A1 (en) * 2003-03-03 2004-09-09 Caputo Thomas A. Adjustable blind cutting device
US7059230B2 (en) 2003-03-03 2006-06-13 Caputo Thomas A Adjustable blind cutting device
US10792739B2 (en) 2003-03-03 2020-10-06 Hunter Douglas Industries Switzerland Gmbh Automatically configurable blind cutting center
US20070239551A1 (en) * 2006-03-30 2007-10-11 Zeller Michelle G Method and apparatus for a product ordering system
US20110061505A1 (en) * 2007-07-31 2011-03-17 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US20110056345A1 (en) * 2007-07-31 2011-03-10 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US20110056353A1 (en) * 2007-07-31 2011-03-10 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US20110056348A1 (en) * 2007-07-31 2011-03-10 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US8256333B2 (en) 2007-07-31 2012-09-04 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US20100206144A1 (en) * 2007-07-31 2010-08-19 Newell Window Furnishings Inc. Window covering sizing method and apparatus
US10786921B2 (en) 2007-07-31 2020-09-29 Hunter Douglas Industries Switzerland Gmbh Window covering sizing method and apparatus
US9440368B2 (en) 2007-07-31 2016-09-13 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US20090031876A1 (en) * 2007-07-31 2009-02-05 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US8631732B1 (en) 2007-07-31 2014-01-21 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US8839701B2 (en) 2007-07-31 2014-09-23 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US9427813B2 (en) 2007-07-31 2016-08-30 Newell Window Furnishing, Inc. Window covering sizing method and apparatus
US7987754B2 (en) 2007-07-31 2011-08-02 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US8322260B2 (en) 2007-07-31 2012-12-04 Newell Window Furnishings, Inc. Window covering sizing method and apparatus
US8479925B2 (en) 2010-07-19 2013-07-09 Newell Window Furnishings, Inc. Display system
US10450129B2 (en) 2010-07-19 2019-10-22 Levolor, Inc. Blind packaging and methods of cutting window coverings
US9266639B2 (en) 2010-07-19 2016-02-23 Newell Window Furnishings, Inc. Blind packaging and methods of cutting window coverings
CN105033043B (en) * 2015-07-01 2017-02-22 李忠杰 Manufacturing method for stainless steel trousers rack
CN105033043A (en) * 2015-07-01 2015-11-11 李忠杰 Manufacturing method for stainless steel trousers rack

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