US3902350A - Sheet material bending and deforming tool - Google Patents
Sheet material bending and deforming tool Download PDFInfo
- Publication number
- US3902350A US3902350A US491969A US49196974A US3902350A US 3902350 A US3902350 A US 3902350A US 491969 A US491969 A US 491969A US 49196974 A US49196974 A US 49196974A US 3902350 A US3902350 A US 3902350A
- Authority
- US
- United States
- Prior art keywords
- sheet material
- tool
- arms
- shank
- bending
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
-
- 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
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/537—Means to assemble or disassemble tool handle and tool
Definitions
- SHEET MATERIAL BENDING AND DEFORMING TOOL CROSS REFERENCE TO RELATED APPLICATIONS The tool disclosed herein is particularly useful in the assemblage of the steel building construction configuration disclosed in U.S. Pat. No. 3,728,835 by the same inventor.
- the invention resides in the tool art and more especially in the field of those, tools used to bend and deform sheet material.
- the invention is especially useful in assembling the building construction configuration described in U.S. Pat. No. 3,728,835 issued to the same inventor.
- a composite action open web steel joist and concrete slab interconnection is described.
- upper curved apex portions of the steel joist bar webbing protrude through the upper chord members of the joist, and through aperatures provided in a sheet metal formwork or deck placed over such joists prior to the pouring of the concrete slab, whereby the protruding apex portions will be encased within the slab to act as shear interconnection devices therein.
- Tapered wedge members forced between the protruding web apex portions and the sheet metal formwork serve to secure mechanically the joist and formwork together, to prevent leakage of the poured concrete through the sheet metal formwork openings, and to enhance the locking of the concrete slab to the protruding web apex portions.
- a primary purpose of the tool disclosed herein is to improve the locking of the tapered wedge which is hammered in place between the prepunched deck and the apex of the joist projecting web member prior to the pouring of the concrete slab.
- the wedge When the wedge is driven in place, it pinches slightly exerting an upward and downward force against the opening between the web apex and the sheet metal formwork. This pinching force facilitates the loosening of the wedge often allowing it to work free of the space when the structure is subjected to the vibration and jarring which normally occurs during construction.
- the present invention is used to deform the top of the three sided sheet metal wedge when the wedge is in place to produce a bump or dimple on either side of bar web apex making it impossible for the wedge to work its way out prior to the pouring of the concrete.
- the tool is composed of a pair of arms or plates mounted on a shank which arms are specifically formed and slotted to straddle the bar web and to engage the uppermost portion of the wedge.
- a handle extends upwardly from the shank and traverses the longitudinal axis of the plates providing a leverage point to rotate the plates to effect the deformation of the wedge.
- a sledge hammer-like structure may be attached to the opposite side of the shank to provide inertia to assist the bending and additionally to provide a weighted driving surface to force the wedge into place between the deck and the bar web.
- FIG. 1 is a side view of the invention shown engaging a work piece in the building construction configuration
- FIG. 2 is a perspective view of the apparatus of FIG. 1;
- FIG. 3 is a plan view of the invention.
- FIG. 4 is a perspective view of the work piece deformed in place with the tool removed.
- FIGS. 1 and 2 there are shown side and perspective views of the bending and deforming tool engaging a sheet metal wedge in the building construction configuration described above.
- the deforming tool is comprised of shank 12, arms 14, one not shown, handle 16, and optional driving head 18. Arms 14 have slots which grip and engage the upper edge 22 of sheet metal wedge 24.
- the upper edge of each slot or the forward edge of each arm is curved as shown at 25 to facilitate engagement of the work piece and to allow for a rotating motion of the tool in the deformation process.
- the bottom edge 26 of the wedge 24 rests on sheet metal deck 28.
- the wedge 24 is driven into place by using, for example, the optional driving head 18 of the tool 10 forcing the deck to lie flat against a cross joist 30 below the deck.
- FIG. 3 is a plan view of the tool showing more clearly the separation of arms 14 which straddle the bar apex to provide a deformation on each side of the bar 32.
- the tool 10 is formed of any conventional high strength material, steel for example, and as would be obvious to those skilled in the art, may be modified in design and form without departing from the concept of the invention as defined in the following claims.
- a tool for bending and deforming sheet material about a curved bar apex extending upright with respect to the plane of said sheet material comprising in combination:
- each of said arms having a sheet material receiving slot positioned in the forward portion of said arm along the horizontal longitudinal axis of said arm;
- said arms spaced apart at least the width of said bar
- each of said slots curving upwardly at its extremity.
- the apparatus of claim 1 further including a weighted head attached to the rear of said shank opposite said arms to increase the inerta of said tool.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
A sheet material bending and deforming tool particularly useful in conjunction with a steel building construction configuration is disclosed. The tool is composed of a pair of arms having material receiving slots which grip the material to deform it about a curved bar apex extending upright with respect to the plane of the material.
Description
United States Patent [191 McManus 51 Sept. 2, 1975 SHEET MATERIAL BENDING AND DEFORMING TOOL [76] Inventor: Ira J. McManus, 39 Lincoln Rd.,
Florham Park, NJ. 07940 [22] Filed: July 25, 1974 21 Appl. No.: 491,969
[52] US. Cl. 72/479; 29/242; 29/DIG. 3 [51] Int. Cl. B21J 13/02 [58] Field of Search 72/479, 385, 387, 478,
72/480; 29/505, 200 B, 242, 267, DIG. 3
[56] References Cited UNITED STATES PATENTS 927,653 7/1909 Heckman 72/479 2,955,493 10/1960 Olsen 72/479 Primary ExaminerRichard J. Herbst Assistant Examiner-Robert M. Rogers Attorney, Agent, or Firm-James J. Cannon, Jr.; James J. Cannon [5 7] ABSTRACT A sheet material bending and deforming tool particularly useful in conjunction with a steel building construction configuration is disclosed. The tool is composed of a pair of arms having material receiving slots which grip the material to deform it about a curved bar apex extending upright with respect to the plane of the material.
2 Claims, 4 Drawing Figures SEP 2197s TED PATEN HHIIHIH FIG. 4 m
SHEET MATERIAL BENDING AND DEFORMING TOOL CROSS REFERENCE TO RELATED APPLICATIONS The tool disclosed herein is particularly useful in the assemblage of the steel building construction configuration disclosed in U.S. Pat. No. 3,728,835 by the same inventor.
BACKGROUND OF THE INVENTION 1. Field of the Invention The invention resides in the tool art and more especially in the field of those, tools used to bend and deform sheet material.
2. Description of the Prior Art The inventor knows of no apparatus of similar form or configuration which may be used to accomplish the assembly task associated with the referenced building construction device as will be described below.
SUMMARY OF THE INVENTION The invention is especially useful in assembling the building construction configuration described in U.S. Pat. No. 3,728,835 issued to the same inventor. In that patent, a composite action open web steel joist and concrete slab interconnection is described. In one form of the invention, upper curved apex portions of the steel joist bar webbing protrude through the upper chord members of the joist, and through aperatures provided in a sheet metal formwork or deck placed over such joists prior to the pouring of the concrete slab, whereby the protruding apex portions will be encased within the slab to act as shear interconnection devices therein.
Tapered wedge members forced between the protruding web apex portions and the sheet metal formwork serve to secure mechanically the joist and formwork together, to prevent leakage of the poured concrete through the sheet metal formwork openings, and to enhance the locking of the concrete slab to the protruding web apex portions.
A primary purpose of the tool disclosed herein is to improve the locking of the tapered wedge which is hammered in place between the prepunched deck and the apex of the joist projecting web member prior to the pouring of the concrete slab. When the wedge is driven in place, it pinches slightly exerting an upward and downward force against the opening between the web apex and the sheet metal formwork. This pinching force facilitates the loosening of the wedge often allowing it to work free of the space when the structure is subjected to the vibration and jarring which normally occurs during construction.
The present invention is used to deform the top of the three sided sheet metal wedge when the wedge is in place to produce a bump or dimple on either side of bar web apex making it impossible for the wedge to work its way out prior to the pouring of the concrete.
The tool is composed of a pair of arms or plates mounted on a shank which arms are specifically formed and slotted to straddle the bar web and to engage the uppermost portion of the wedge. A handle extends upwardly from the shank and traverses the longitudinal axis of the plates providing a leverage point to rotate the plates to effect the deformation of the wedge. Optionally, a sledge hammer-like structure may be attached to the opposite side of the shank to provide inertia to assist the bending and additionally to provide a weighted driving surface to force the wedge into place between the deck and the bar web.
These and other features and advantages of the invention will become more clear from the description of the preferred embodiment and drawings which follow.
DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of the invention shown engaging a work piece in the building construction configuration;
FIG. 2 is a perspective view of the apparatus of FIG. 1;
FIG. 3 is a plan view of the invention; and
FIG. 4 is a perspective view of the work piece deformed in place with the tool removed.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring first to FIGS. 1 and 2, there are shown side and perspective views of the bending and deforming tool engaging a sheet metal wedge in the building construction configuration described above. The deforming tool is comprised of shank 12, arms 14, one not shown, handle 16, and optional driving head 18. Arms 14 have slots which grip and engage the upper edge 22 of sheet metal wedge 24. The upper edge of each slot or the forward edge of each arm is curved as shown at 25 to facilitate engagement of the work piece and to allow for a rotating motion of the tool in the deformation process. The bottom edge 26 of the wedge 24 rests on sheet metal deck 28. The wedge 24 is driven into place by using, for example, the optional driving head 18 of the tool 10 forcing the deck to lie flat against a cross joist 30 below the deck. Rotating the tool 10 by the handle 16 forward or clockwise as illustrated in FIG. 2, deforms the upper edge 22 about bar 32 on either side locking it firmly in place as described above and as shown in FIG. 4.
FIG. 3 is a plan view of the tool showing more clearly the separation of arms 14 which straddle the bar apex to provide a deformation on each side of the bar 32.
The tool 10 is formed of any conventional high strength material, steel for example, and as would be obvious to those skilled in the art, may be modified in design and form without departing from the concept of the invention as defined in the following claims.
What is claimed is:
1. A tool for bending and deforming sheet material about a curved bar apex extending upright with respect to the plane of said sheet material comprising in combination:
a central shank;
a handle extending upright from said shank;
a pair of spaced apart sheet material bending arms extending outward from said shank and transverse said handle;
each of said arms having a sheet material receiving slot positioned in the forward portion of said arm along the horizontal longitudinal axis of said arm;
said arms spaced apart at least the width of said bar;
the upper surface of each of said slots curving upwardly at its extremity.
2. The apparatus of claim 1 further including a weighted head attached to the rear of said shank opposite said arms to increase the inerta of said tool.
Claims (2)
1. A tool for bending and deforming sheet material about a curved bar apex extending upright with respect to the plane of said sheet material comprising in combination: a central shank; a handle extending upright from said shank; a pair of spaced apart sheet material bending arms extending outward from said shank and transverse said handle; each of said arms having a sheet material receiving slot positioned in the forward portion of said arm along the horizontal longitudinal axis of said arm; said arms spaced apart at least the width of said bar; the upper surface of each of said slots curving upwardly at its extremity.
2. The apparatus of claim 1 further including a weighted head attached to the rear of said shank opposite said arms to increase the inerta of said tool.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US491969A US3902350A (en) | 1974-07-25 | 1974-07-25 | Sheet material bending and deforming tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US491969A US3902350A (en) | 1974-07-25 | 1974-07-25 | Sheet material bending and deforming tool |
Publications (1)
Publication Number | Publication Date |
---|---|
US3902350A true US3902350A (en) | 1975-09-02 |
Family
ID=23954416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US491969A Expired - Lifetime US3902350A (en) | 1974-07-25 | 1974-07-25 | Sheet material bending and deforming tool |
Country Status (1)
Country | Link |
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US (1) | US3902350A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4409717A (en) * | 1981-04-20 | 1983-10-18 | Atlantic Building Systmes Inc. | Swedging tool structure and use |
US4555929A (en) * | 1983-07-25 | 1985-12-03 | Mcbee Gerald | Door hinge aligning tool and method |
US4619132A (en) * | 1983-07-25 | 1986-10-28 | Mcbee Gerald | Door hinge aligning tool |
US4751840A (en) * | 1987-03-09 | 1988-06-21 | Windsor Jr John F | Electrician's wire bending tool with mandrels |
US5561902A (en) * | 1994-09-28 | 1996-10-08 | Cosma International Inc. | Method of manufacturing a ladder frame assembly for a motor vehicle |
US5836196A (en) * | 1997-03-05 | 1998-11-17 | Smith; Lance D. | Device for forming roofing tiles |
US20090188187A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Composite wall and floor system |
US20090188185A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Balcony structure |
US20090188193A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Flush joist seat |
US20090188192A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Composite joist floor system |
US20090188208A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Mechanical header |
US20100192507A1 (en) * | 2008-01-24 | 2010-08-05 | Nucor Corporation | Flush joist seat |
US20100218443A1 (en) * | 2008-01-24 | 2010-09-02 | Nucor Corporation | Composite wall system |
US20100275544A1 (en) * | 2008-01-24 | 2010-11-04 | Nucor Corporation | Composite joist floor system |
GB2451798B (en) * | 2007-05-08 | 2011-07-13 | Drive Elite Ltd | Tool |
US20110203217A1 (en) * | 2010-02-19 | 2011-08-25 | Nucor Corporation | Weldless Building Structures |
US9004835B2 (en) | 2010-02-19 | 2015-04-14 | Nucor Corporation | Weldless building structures |
US9108238B2 (en) | 2012-05-22 | 2015-08-18 | Steve R. Bryant | Portable sheet metal bending brake bar for forming angles and cross breaks in sheet metal |
US10788066B2 (en) | 2016-05-02 | 2020-09-29 | Nucor Corporation | Double threaded standoff fastener |
CN111842584A (en) * | 2020-07-31 | 2020-10-30 | 杭州酬催科技有限公司 | Bending device for intelligent manufacturing of metal sheets |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US927653A (en) * | 1908-12-08 | 1909-07-13 | Jesse M Heckman | Tool for bearing bands, wire, and the like. |
US2955493A (en) * | 1958-08-26 | 1960-10-11 | Oliver C Olsen | Rivet anvil for field mower sickle |
-
1974
- 1974-07-25 US US491969A patent/US3902350A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US927653A (en) * | 1908-12-08 | 1909-07-13 | Jesse M Heckman | Tool for bearing bands, wire, and the like. |
US2955493A (en) * | 1958-08-26 | 1960-10-11 | Oliver C Olsen | Rivet anvil for field mower sickle |
Cited By (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4409717A (en) * | 1981-04-20 | 1983-10-18 | Atlantic Building Systmes Inc. | Swedging tool structure and use |
US4555929A (en) * | 1983-07-25 | 1985-12-03 | Mcbee Gerald | Door hinge aligning tool and method |
US4619132A (en) * | 1983-07-25 | 1986-10-28 | Mcbee Gerald | Door hinge aligning tool |
US4751840A (en) * | 1987-03-09 | 1988-06-21 | Windsor Jr John F | Electrician's wire bending tool with mandrels |
US5561902A (en) * | 1994-09-28 | 1996-10-08 | Cosma International Inc. | Method of manufacturing a ladder frame assembly for a motor vehicle |
US5632508A (en) * | 1994-09-28 | 1997-05-27 | Cosma International Inc. | Ladder frame assembly for a motor vehicle |
US5718048A (en) * | 1994-09-28 | 1998-02-17 | Cosma International Inc. | Method of manufacturing a motor vehicle frame assembly |
US5855394A (en) * | 1994-09-28 | 1999-01-05 | Cosma International Inc. | Motor vehicle frame assembly and method of forming the same |
US5836196A (en) * | 1997-03-05 | 1998-11-17 | Smith; Lance D. | Device for forming roofing tiles |
GB2451798B (en) * | 2007-05-08 | 2011-07-13 | Drive Elite Ltd | Tool |
US20100192507A1 (en) * | 2008-01-24 | 2010-08-05 | Nucor Corporation | Flush joist seat |
US8096084B2 (en) | 2008-01-24 | 2012-01-17 | Nucor Corporation | Balcony structure |
US20090188192A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Composite joist floor system |
US20090188208A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Mechanical header |
US9243404B2 (en) | 2008-01-24 | 2016-01-26 | Nucor Corporation | Composite joist floor system |
US20100218443A1 (en) * | 2008-01-24 | 2010-09-02 | Nucor Corporation | Composite wall system |
US20100275544A1 (en) * | 2008-01-24 | 2010-11-04 | Nucor Corporation | Composite joist floor system |
US20090188185A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Balcony structure |
US20090188187A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Composite wall and floor system |
US20090188193A1 (en) * | 2008-01-24 | 2009-07-30 | Nucor Corporation | Flush joist seat |
US8186122B2 (en) | 2008-01-24 | 2012-05-29 | Glenn Wayne Studebaker | Flush joist seat |
US8186112B2 (en) | 2008-01-24 | 2012-05-29 | Nucor Corporation | Mechanical header |
US8201363B2 (en) | 2008-01-24 | 2012-06-19 | Nucor Corporation | Balcony structure |
US8230657B2 (en) | 2008-01-24 | 2012-07-31 | Nucor Corporation | Composite joist floor system |
US8245480B2 (en) | 2008-01-24 | 2012-08-21 | Nucor Corporation | Flush joist seat |
US9677263B2 (en) | 2008-01-24 | 2017-06-13 | Nucor Corporation | Composite joist floor system |
US8621806B2 (en) | 2008-01-24 | 2014-01-07 | Nucor Corporation | Composite joist floor system |
US9611644B2 (en) | 2008-01-24 | 2017-04-04 | Nucor Corporation | Composite wall system |
US8661755B2 (en) | 2008-01-24 | 2014-03-04 | Nucor Corporation | Composite wall system |
US8950143B2 (en) | 2008-01-24 | 2015-02-10 | Nucor Corporation | Composite joist floor system |
US20110203217A1 (en) * | 2010-02-19 | 2011-08-25 | Nucor Corporation | Weldless Building Structures |
US9004835B2 (en) | 2010-02-19 | 2015-04-14 | Nucor Corporation | Weldless building structures |
US9267527B2 (en) | 2010-02-19 | 2016-02-23 | Nucor Corporation | Weldless building structures |
US8636456B2 (en) | 2010-02-19 | 2014-01-28 | Nucor Corporation | Weldless building structures |
US8529178B2 (en) | 2010-02-19 | 2013-09-10 | Nucor Corporation | Weldless building structures |
US9108238B2 (en) | 2012-05-22 | 2015-08-18 | Steve R. Bryant | Portable sheet metal bending brake bar for forming angles and cross breaks in sheet metal |
US10788066B2 (en) | 2016-05-02 | 2020-09-29 | Nucor Corporation | Double threaded standoff fastener |
US11815123B2 (en) | 2016-05-02 | 2023-11-14 | Nucor Corporation | Double threaded standoff fastener |
CN111842584A (en) * | 2020-07-31 | 2020-10-30 | 杭州酬催科技有限公司 | Bending device for intelligent manufacturing of metal sheets |
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