US3813914A - Bending apparatus - Google Patents
Bending apparatus Download PDFInfo
- Publication number
- US3813914A US3813914A US00326219A US32621973A US3813914A US 3813914 A US3813914 A US 3813914A US 00326219 A US00326219 A US 00326219A US 32621973 A US32621973 A US 32621973A US 3813914 A US3813914 A US 3813914A
- Authority
- US
- United States
- Prior art keywords
- shoe
- arm
- workpiece
- actuating
- bent
- 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
Links
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
- B21D7/063—Pliers with forming dies
Definitions
- This invention relates to a bending apparatus, which is hydraulically operated to bend cable, wire or pipe to any desired angle from 1 to 90.
- the apparatus includes an adjustment means which moves the shoe contacting the cable or pipe to accommodate for any change in size.
- FIG. 1 is a side elevation of the present invention prior to bending a wire, cable or pipe;
- FIG. 2 is a sectional view taken substantially on the center line of the device showing a smaller cable or pipe being bent;
- FIG. 3 is a top elevation view of the adjustment means
- FIG. 4 is an end view showing the opening for the cable or pipe to be inserted through, or by which the apparatus can be attached to a length of pipe or cable with the shoe removed from the arm and then replaced thereon.
- FIG. 1 and FIG. 2 show the bending apparatus 21 with a cable or pipe therein in dotted line.
- a hydraulic cylinder means 22 comprises a cylinder housing 23 having a closed end with an inlet port 28 connected thereto, and the other end of housing 23 being threadedly engaged at 24 to cylinder bracket 25.
- a yoke 33 is connected to ram or piston 35 by shoulder bolt 37.
- the cylinder bracket 25 includes a pair of extensions 26 having a bore normal thereto with support pin 27 extending through and held by a retaining ring 31.
- a first workpiece engaging support 32 is retained on the support pin 27 between the cylinder bracket extensions 26 along with one end oflong link 29.
- the ends of each of two long links 29 lies on the either side of the cylinder bracket extensions 26 and is retained by the support pin 27.
- the yoke 33 includes extensions 41 which comprises a bore 42 normal to the extensions 41 for insertion of a yoke stud 39.
- the yoke stud 39 is retained by a hex nut 45 or by other means.
- the improvement of this apparatus consists of the adjustment means 43, which comprises a connecting rod 47 with an internal threaded bore 49.
- the connecting rod 47 has a bore 50 in which yoke stud 39 extends through to hold the adjustment means 43 in relationship to the movement of the yoke 33 by means of ram extensions 41.
- the adjusting screw 51 has a threaded portion 53 and a pin end 55, including a shoulder portion 56, and a thumb wheel 54 intermediate the threaded insert end 52 and pin end 55.
- the pin end 55 turns freely, as the thumb wheel 54 is turned, in bore 57 of trunnion 59, and is restrained from removal only by retaining ring 61.
- Each end 58 of trunnion 59 extends into upper bore 65 on an arm 63.
- the center bore 67 of arm 63 retains support stud 69.
- the support stud 69 supports the sec ond workpiece engaging support 73 and extends through bore 90 of short links 91 located on either side of the support 73 and is retained thereby with an acorn nut7l, as shown in FIG. 3.
- a slot 75 in the lower end of arm 63 provides for insertion and removal of wheel or shoe 77.
- wheel or shoe 77 has a concave surface 79, or semi-circular, which can generally be the same shape and general size as the cable or pipe being bent.
- the shoe 77 has axial pin 80 with recess 81 for sliding into recessed slot 75 of arm 63.
- the shoulder 83 of pin 80 prevents axial movement of the shoe 77.
- the shoe 77 is detachably retained to arm 63 by means of spring biased detent means 97 on each side of shoe 77.
- the de- Y tent means engage hole 98 in arm 63, and prevents rotationof the shoe. However, the shoe can be from the slot with slight pressure.
- a short link 91 is connected at one end to the yoke stud 39 and at the other end to the support stud 69' of arm 63, as shown in FIG. 1 and FIG. 2.
- Angular movement of the workpiece holding means, i.e., support 73 and shoe 77, by means of short link 91 and adjustment means 43 connected to the yoke of cylinder 22 causes the cable or pipe to bend at an angle determined by stationary support 32 and distance of ram movement.
- FIG. 2 shows the adjustment means extended and a compensating movement thereby of the wheel or shoe 77 about the axis of support stud 69, which then makes the opening 85, as shown in FIG. 4, smaller, thus accommodating smaller pipe or cable sizes.
- a bending apparatus adapted to bend cable or pipe comprising:
- actuating means having an extendable and retractable ram
- first workpiece engaging means (32) connected to said actuating means and adapted to abut said cable or pipe;
- short link means connected at one end to said extendable and retractable ram means and at the other end to said intermediate end of said arm;
- said adjustment means comprises:
- connecting rod having an internal threaded bore at one end and a bore normal to the axis ofthe connecting rod at the other'end;
- an adjusting screw means having a threaded insert at one end and a circular pin at the other end connected a trunnion means connected to said one end of said arm.
- a bending apparatus comprising:
- actuating means having an extendable and retractable ram
- first workpiece engaging means attached to said actuating means for engaging said member to be bent
- first linkage means (29) movably connecting'said workpiece holding means to said actuating means;
- said first and second linkage means adapted to move said workpiece holding means in a predetermined curved path whereby said member held within said holding means will be bent accordingly;
- adjustment means connected to said actuating means and said workpiece holding means, whereby changes in the length of said adjustment means pivots said holding means in a manner as to accommodate members having different diameters.
- a shoe 8 The apparatus according to claim 7, wherein said shoe is detachably retained thereon, whereby said apparatus is insertable over a member to be bent and said shoe is then reattached thereon in abutting relationship to grip said member.
Abstract
Description
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00326219A US3813914A (en) | 1973-01-24 | 1973-01-24 | Bending apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00326219A US3813914A (en) | 1973-01-24 | 1973-01-24 | Bending apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US3813914A true US3813914A (en) | 1974-06-04 |
Family
ID=23271305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00326219A Expired - Lifetime US3813914A (en) | 1973-01-24 | 1973-01-24 | Bending apparatus |
Country Status (1)
Country | Link |
---|---|
US (1) | US3813914A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924438A (en) * | 1974-09-23 | 1975-12-09 | Greenlee Bros & Co | Hydraulic cable bender |
US4026138A (en) * | 1976-07-12 | 1977-05-31 | Applied Power Inc. | Cable bender |
US4052879A (en) * | 1975-05-27 | 1977-10-11 | Crees Silas R | Cable bender |
FR2432901A1 (en) * | 1978-08-12 | 1980-03-07 | Kotthaus Dako Werkzeug | Hand-operated tube bender - has lever-operated fork with slots receiving gauge wheel stubs and pivot mounting for bending fork |
US7013694B1 (en) | 2004-05-14 | 2006-03-21 | Steven Don Sims | Portable, metal bending apparatus |
US11772756B1 (en) * | 2012-07-06 | 2023-10-03 | Skier's Choice, Inc. | Wakeboat with dynamic wave control |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE568431A (en) * | ||||
US1816218A (en) * | 1929-04-29 | 1931-07-28 | Charles A Henry | Method and apparatus for forming arch tubes |
US2656872A (en) * | 1950-03-23 | 1953-10-27 | Hossfeld Mfg Company | Iron bending machine |
US2852064A (en) * | 1956-07-31 | 1958-09-16 | Simpson Electric Corp | Conduit bending device |
US3584493A (en) * | 1968-10-10 | 1971-06-15 | Silas Ray Crees | Wire bending apparatus |
US3613430A (en) * | 1969-07-25 | 1971-10-19 | Silas R Crees | Wire bending apparatus |
US3724258A (en) * | 1970-03-12 | 1973-04-03 | Cojafex | Apparatus for bending elongate objects |
-
1973
- 1973-01-24 US US00326219A patent/US3813914A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE568431A (en) * | ||||
US1816218A (en) * | 1929-04-29 | 1931-07-28 | Charles A Henry | Method and apparatus for forming arch tubes |
US2656872A (en) * | 1950-03-23 | 1953-10-27 | Hossfeld Mfg Company | Iron bending machine |
US2852064A (en) * | 1956-07-31 | 1958-09-16 | Simpson Electric Corp | Conduit bending device |
US3584493A (en) * | 1968-10-10 | 1971-06-15 | Silas Ray Crees | Wire bending apparatus |
US3613430A (en) * | 1969-07-25 | 1971-10-19 | Silas R Crees | Wire bending apparatus |
US3724258A (en) * | 1970-03-12 | 1973-04-03 | Cojafex | Apparatus for bending elongate objects |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924438A (en) * | 1974-09-23 | 1975-12-09 | Greenlee Bros & Co | Hydraulic cable bender |
US4052879A (en) * | 1975-05-27 | 1977-10-11 | Crees Silas R | Cable bender |
US4026138A (en) * | 1976-07-12 | 1977-05-31 | Applied Power Inc. | Cable bender |
FR2432901A1 (en) * | 1978-08-12 | 1980-03-07 | Kotthaus Dako Werkzeug | Hand-operated tube bender - has lever-operated fork with slots receiving gauge wheel stubs and pivot mounting for bending fork |
US7013694B1 (en) | 2004-05-14 | 2006-03-21 | Steven Don Sims | Portable, metal bending apparatus |
US11772756B1 (en) * | 2012-07-06 | 2023-10-03 | Skier's Choice, Inc. | Wakeboat with dynamic wave control |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GREENLEE TEXTRON INC. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE DATE MAY 25, 1988;ASSIGNOR:CONTRACTOR TOOL AND EQUIPMENT TEXTRON INC.;REEL/FRAME:005004/0653 Effective date: 19880715 |
|
AS | Assignment |
Owner name: EX-CELL-O MANUFACTURING SYSTEMS CO. Free format text: SECURITY INTEREST;ASSIGNOR:GREENLEE BROS. & CO.;REEL/FRAME:005070/0264 Effective date: 19821105 Owner name: EX-CELL-O CONTRACTOR TOOL AND EQUIPMENT COMPANY Free format text: CHANGE OF NAME;ASSIGNOR:EX-CELLO-O MANUFACTURING SYSTEMS CO.;REEL/FRAME:005080/0941 Effective date: 19860522 Owner name: CONTRACTOR TOOL AND EQUIPMENT TEXTRON INC. Free format text: CHANGE OF NAME;ASSIGNOR:EX-CELL-O CONTRACTOR TOOL AND EQUIPMENT CO., A CORP. OF DE.;REEL/FRAME:005070/0259 Effective date: 19870226 |