US3926028A - Tube bender - Google Patents

Tube bender Download PDF

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Publication number
US3926028A
US3926028A US500156A US50015674A US3926028A US 3926028 A US3926028 A US 3926028A US 500156 A US500156 A US 500156A US 50015674 A US50015674 A US 50015674A US 3926028 A US3926028 A US 3926028A
Authority
US
United States
Prior art keywords
tube
mandrel
hook
bender
groove
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
US500156A
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English (en)
Inventor
Leonard J Kowal
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.)
IMP Eastman Corp
Pullman Co
Original Assignee
IMP Eastman Corp
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 IMP Eastman Corp filed Critical IMP Eastman Corp
Priority to US500156A priority Critical patent/US3926028A/en
Priority to DE19752525577 priority patent/DE2525577A1/de
Priority to JP50077470A priority patent/JPS5126673A/ja
Application granted granted Critical
Publication of US3926028A publication Critical patent/US3926028A/en
Assigned to IMPERIAL CLEVITE INC. reassignment IMPERIAL CLEVITE INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: I-T-E IMPERIAL CORPORATION
Assigned to CLEVITE INDUSTRIES INC., A CORP. OF DE. reassignment CLEVITE INDUSTRIES INC., A CORP. OF DE. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: IMPERIAL CLEVITE INC., A PA. CORP. (MERGED INTO)
Assigned to PULLMAN COMPANY, THE, A DE. CORP. reassignment PULLMAN COMPANY, THE, A DE. CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CLEVITE INDUSTRIES INC.,
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D7/06—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

  • the clu'mp element is inter;
  • n connector portion connected with the mandrel of r the tube bender by n connector portion.
  • n connector portion In one'jfortma hook is formed intogrally with the male clamp portion and in at second form. the hook is pivotaliy associated therewith.
  • the hook is swingably mounted to the mandrel, and in Kowal U.S. Pat. No. 3,685,335 and Kowal et al. U.S. Pat. No. 3,750,447,the hook is fixedly associated with the mandrel.
  • the present invention comprehends an improved manually operable tube bender including a one-piece combination mandrel support and tube holder providing a facilitated tube bending operation and permitting facilitated use of the tube bender with the combination structure fixedly secured in a female clamping device.
  • the tube bender is arranged for-facilitated swinging of the shoe in the tube bending operation with the structure so held.
  • Adjustable stop means may be provided for positioning the end of the tube to be bentin a preselected relationship to the mandrel groove.
  • the adjustable stop means is carried on the means securing the mandrel support and tube holder to the mandrel, and in another form, the stop means is carried on a post mounted to the mandrel support and tube holder structure.
  • the hook portion is formed integrally with the clamp element adapted to be clamped in-the female clamping device.
  • the hook element is swingably mounted thereto.
  • a mounting wall is provided adjacent the l'irilaildld and the hook portion is swingably mounted t ereto.
  • the securing means may comprise an elongated post having a threaded end secured to the mandrel and adapted to carry the adjustable stop.
  • the mandrel supportand tube holder may be secured to the mandrel by a threaded means and the post may be secured to the mandrel support independently thereof.
  • the mandrel sup ort and tube holder structure comprises an L-shaped block with the tube holder fonned integrally therewith as a recess in one end edge portion of the block.
  • the tube bender of the present invention is extremely simple and economical of construction while yet providing an improved facilitated tube bending Operation.
  • FIG. I is a side elevation of a tube bender embodying the invention.
  • FIG. 2 is a bottom plan view thereof
  • FIG. 3 is a fragmentary side elevation of a modified form of tube bender embodying the invention.
  • FIG. 4 is a bottom plan view thereof
  • FIG. 5 is a fragmentary side elevation of still another modified form of tube bender embodying the Invcn tion;
  • FIG. 6 is a bottom plan view thereof
  • FIG. 7 is a fragmentary side elevation of yet another modified form of tube bender embodying the invention.
  • FIG. 8 is a bottom plan view thereof
  • FIG. 9 is a fragmentary side elevation of a still further modified form of tube bender embodying the invention.
  • FIG. 10 is a bottom plan view thereof
  • FIG. 11 is a fragmentary side elevation of yet a f urther modified form of tube bender embodying the invention.
  • FIG. 12 is a bottom plan view thereof.
  • a manually operable tube bender generally designated 10 is shown to comprise a mandrel 11 having an arcuate tube bending groove 12.
  • a shoe I3 is swingably connected to the mandrel by a link 14 and is manipulated by means of an elongated handle 15.
  • Link 14 is pivotally connected to shoe. 13 by a pivot 16 and to the mandrel by a pivot 17.
  • the tube T to be bent is urged into the mandrel groove 12 by movement of the shoe l3 thereagainst as the shoeis swung from a bend-start position 18.
  • Tube T is held against a longitudinal movement during the tube bending operation by a hook 19.
  • hook 19 comprises an integral portion of a one-piece combination mandrel support and tube holder structure generally designated 20.
  • Structure 20 comprises an L-shaped block having a first portion21 defining a male clamp element adapted to be clamped fixedly in a female clamping device, such as a vise.
  • Block 20 further includes a second portion 22 having an end edge portion 23 defining a recess 24 forrnlng hook 19 integrally with structure 20.
  • End edge portion 23 further defines a connector 25 which is fixedly secured to mandrel 11 by means of suitable threaded means, such as screw 26, so as to dispose 3 hook 19 in alignment with the bend-start point 18, as best seen in FIG. 1.
  • the threaded securingmeans 26 is thuslydisposed remotely from the male clamp portion 21, as best seen in FIG.
  • the adjustable stop post 427 is secured to the block 420.
  • a further modified form of tube bender generally designated 510 is shown to include a fixed hook 519 and an adjustable stop 530 carried on a post 527 secured to the mounting structure block 520.
  • the connector portion 525 of the 3 block is secured to the mandrel 511 by a suitable screw "Each of the embodiments of FIGS. 3-12 is thusly a tube bender generally designated 110 is shown to comprise a tubebender. generally similar totube" bender but having a modified securing means 126 for fixedly securing thej'connector .portion ;125 to the mandrel 111.
  • the securing means may comprise a post 12'I, having a threaded end i 128 secured to the mandrel.
  • the post includes an inner shoulder portion 129 clamping connector portion 125 to the mandrel when the threadedportion 128 is fully threaded thereto.
  • the post is elongate and carries anadjustable stop 130 defining a shoulder 131 against which the end of tube T may abut.
  • the hoolo93nd tubibbrlqitigfgrobved vention g shbw i FIGS. 5 and v6 to comprise a manual tube bender-"gener ally designated 210 havinga-combination mandrel support and tube holder structure- 220. Structure 220.
  • a screw 235 is extended through the hoolc' 'mounting portion 234 and threaded to the maridrel 21 1.
  • Screw, 235 includes a cylindrical shank portion 236'pivotally carrying a hook member 237 for engagement with the tube adjacent the bend-start position 2 18 of the mandrel as shown in FlGS. 5 and 6. Thehook is swung into engagement with; the tube for facilitated disposition ⁇ of f the tube' to tbe' bent in the toolduring the bendingopera tion.
  • a tube bender generallyde'sig't'ta'te'd Q3111isifgenerally similar to tube bender i210 but having an adjustable stop 330 mountedon alpost327-tand isshown to iii-t clude a pivotal hook.337]ca'rried on ascrew"335.simi-' larly to hook237 andscrew 235 01 tube bender 210.
  • tube benderf310 is similar 'totubelbender 110 in having an "adjustable stopfmounted on apost defining the means" for securing the mounting structure to the mandrel. andsimilar to tube'b'ender 210 in having a pivotable hook. a i
  • tube bender embodying the invention generally designated 410 is shown? to comprise. a tube bgndcrjai generally similar to tube bender'310 buthavin'g'a'sepa-I.
  • .1 1. ma manually operable tube bender having a man- "drel provided with a peripheral tube receiving groove. a shoe swin'gablymo unted to said mandrel, and a handle for swinging said shoe about said mandrel for urging ing operation, the
  • the tube benderof claim 1 furtherincluding ad- ,ju'stable stopme'ans carried by saidsecuring-means in alignment with said hook for positioning the end of the tube to be bent in a preselectedrelationship to said mandrel groove.
  • w y p '7 The tube bender of claim 1 further including adjustable stop means carried by said securing means in alignment with said hook for positioning the end of the tube to be bent in a preselected relationship to said ,rna'ndrelj groove.
  • said securing means comprising an elongate post having a threaded end secured to said mandreL- t I 8.
  • the tube bender of claim 1 further including adjustable stop means carried by said securing means in alignment with said hook for positioning the end of the tube to be bent ina preselected relationship to said mandrel groove.
  • adjustable stop means carried by said securing means in alignment with said hook for positioning the end of the tube to be bent ina preselected relationship to said mandrel groove.
  • the tube benderjof claim 1 furtherincluding a adjustable stop means including a' post secured to said combination rnandrel' support. and 3 tube holder and adjustable shoulder means onsaid post in alignment with said hook for positioning the end of the tube to be bent in a preselected relationship to said mandrel groove.
  • amanually operabletube bender having a mandrel provided with a peripheral tube receiving groove. a shoe swingably mounted to said mandrel, and r a handle for swinging said shoe about said mandrel for urging a tube into said groove in a tube bending opera tion, the improvement comprising: a
  • a one-piece support having'a first integral portion g l l.
  • said second securing means comprises a pivot clement extending between said mounting wall and said tnandrel, and said hook is pivotally mounted on saitl pivot element.
  • su port defines a mounting wall spaced adjacent said mandrel. said connector portion comprising an extension oi said mounting wall.
  • the tube bender of claim 10 further including adjustable stop means carried by said support in ulignment with said hook for positioning the end of the tuhc to be bent in a preselected relationship to said mandrel groove.
  • the tube bender of claim 10 further including adjustable stop means carried by said first securing means in alignment with said hook for positioning the end of the tube to be bent in a preselected relationship to said mandrel groove.
  • the tube bender of claim 10 further includin adjustable stop means carried by said first securing means in alignment with said hook for positioning the end of the tube to be bent in a preselected relationship to said mandrel groove, said first securing means comprising an elongate post having a threaded end secured to said mandrel.
  • the tube bender of claim 10 further including adjustable stop means carried by said first securing means-in alignment with said hook for positioning the endof the tube to be bent in a preselected relationshi to said mandrel groove.
  • said first securing means comprising an elongate postand said adjustable stop means includesshoulder means slidably mounted thereon.
  • l8.f '
  • adjustable stop'rneans including a post secured to said support and adjustableshoulder means on said post in alignment vwith said hook for positioning the end of the 12.
  • the tube bender of claim 10 wherein defines a mounting wall spaced adjacent said mandrel,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
US500156A 1974-08-23 1974-08-23 Tube bender Expired - Lifetime US3926028A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US500156A US3926028A (en) 1974-08-23 1974-08-23 Tube bender
DE19752525577 DE2525577A1 (de) 1974-08-23 1975-06-09 Manuelles rohrbiegewerkzeug
JP50077470A JPS5126673A (enrdf_load_stackoverflow) 1974-08-23 1975-06-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US500156A US3926028A (en) 1974-08-23 1974-08-23 Tube bender

Publications (1)

Publication Number Publication Date
US3926028A true US3926028A (en) 1975-12-16

Family

ID=23988278

Family Applications (1)

Application Number Title Priority Date Filing Date
US500156A Expired - Lifetime US3926028A (en) 1974-08-23 1974-08-23 Tube bender

Country Status (3)

Country Link
US (1) US3926028A (enrdf_load_stackoverflow)
JP (1) JPS5126673A (enrdf_load_stackoverflow)
DE (1) DE2525577A1 (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498953A1 (fr) * 1981-01-30 1982-08-06 Imp Clevite Inc Cintreuse de tubes
US4379400A (en) * 1981-01-30 1983-04-12 Imperial Clevite Inc. Tube bender construction
US4379399A (en) * 1981-01-30 1983-04-12 Imperial Clevite Inc. Tube bender construction
US4380922A (en) * 1981-01-30 1983-04-26 Imperial Clevite Inc. Tube bender construction
US4389873A (en) * 1981-03-11 1983-06-28 Imperial Clevite Inc. Tube bender construction
US4389872A (en) * 1981-01-30 1983-06-28 Imperial Clevite Inc. Tube bender construction
US4403496A (en) * 1981-01-30 1983-09-13 Imperial Clevite Inc. Tube bender construction
US4424699A (en) 1981-02-17 1984-01-10 Imperial Clevite Inc. Tube bender construction
USD344336S (en) 1992-04-13 1994-02-15 Ernst Orsing Bending tool for suction tube for dental and surgical use
US5819571A (en) * 1997-02-10 1998-10-13 Johnson; Stephen Apparatus for bending surgical instruments
US20090266137A1 (en) * 2006-10-26 2009-10-29 Kapman Ab Tool for Pipe Bending and Former for Use in Such a Tool
US9968976B2 (en) 2016-03-25 2018-05-15 Keith E. Klinger Conduit bender

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442695A (en) * 1982-09-20 1984-04-17 Gardner William E Conduit bender with angle indications
CN106424349A (zh) * 2016-08-26 2017-02-22 天津思为机器设备有限公司 一种手工快速热煨把手的工装

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US268050A (en) * 1882-11-28 Samuel stephens
US2654279A (en) * 1950-04-19 1953-10-06 Tomarin Marcus Tube bending hand tool with a rocking pressure member
US2702065A (en) * 1950-09-14 1955-02-15 Imp Brass Mfg Co Tube bending apparatus
US2757562A (en) * 1953-05-01 1956-08-07 Imp Brass Mfg Co Portable, hand operated, tube bending tool
US2796785A (en) * 1955-12-30 1957-06-25 Imp Brass Mfg Co Tube bender
US2887917A (en) * 1957-08-02 1959-05-26 Imp Brass Mfg Co Tube bender scale means
US2956608A (en) * 1958-11-07 1960-10-18 Bernard J Vinkemulder Strip-forming tool
US3553990A (en) * 1968-04-23 1971-01-12 Pines Engineering Co Inc Tube bender pressure die interference control
US3685335A (en) * 1970-11-05 1972-08-22 Imp Eastman Corp Tube bender
US3750447A (en) * 1971-09-28 1973-08-07 Imp Eastman Corp Tube bender

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US268050A (en) * 1882-11-28 Samuel stephens
US2654279A (en) * 1950-04-19 1953-10-06 Tomarin Marcus Tube bending hand tool with a rocking pressure member
US2702065A (en) * 1950-09-14 1955-02-15 Imp Brass Mfg Co Tube bending apparatus
US2757562A (en) * 1953-05-01 1956-08-07 Imp Brass Mfg Co Portable, hand operated, tube bending tool
US2796785A (en) * 1955-12-30 1957-06-25 Imp Brass Mfg Co Tube bender
US2887917A (en) * 1957-08-02 1959-05-26 Imp Brass Mfg Co Tube bender scale means
US2956608A (en) * 1958-11-07 1960-10-18 Bernard J Vinkemulder Strip-forming tool
US3553990A (en) * 1968-04-23 1971-01-12 Pines Engineering Co Inc Tube bender pressure die interference control
US3685335A (en) * 1970-11-05 1972-08-22 Imp Eastman Corp Tube bender
US3750447A (en) * 1971-09-28 1973-08-07 Imp Eastman Corp Tube bender

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498953A1 (fr) * 1981-01-30 1982-08-06 Imp Clevite Inc Cintreuse de tubes
US4379400A (en) * 1981-01-30 1983-04-12 Imperial Clevite Inc. Tube bender construction
US4379399A (en) * 1981-01-30 1983-04-12 Imperial Clevite Inc. Tube bender construction
US4380922A (en) * 1981-01-30 1983-04-26 Imperial Clevite Inc. Tube bender construction
US4389872A (en) * 1981-01-30 1983-06-28 Imperial Clevite Inc. Tube bender construction
US4403496A (en) * 1981-01-30 1983-09-13 Imperial Clevite Inc. Tube bender construction
US4424699A (en) 1981-02-17 1984-01-10 Imperial Clevite Inc. Tube bender construction
US4389873A (en) * 1981-03-11 1983-06-28 Imperial Clevite Inc. Tube bender construction
USD344336S (en) 1992-04-13 1994-02-15 Ernst Orsing Bending tool for suction tube for dental and surgical use
US5819571A (en) * 1997-02-10 1998-10-13 Johnson; Stephen Apparatus for bending surgical instruments
US20090266137A1 (en) * 2006-10-26 2009-10-29 Kapman Ab Tool for Pipe Bending and Former for Use in Such a Tool
US9968976B2 (en) 2016-03-25 2018-05-15 Keith E. Klinger Conduit bender

Also Published As

Publication number Publication date
DE2525577A1 (de) 1976-03-04
JPS5126673A (enrdf_load_stackoverflow) 1976-03-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: IMPERIAL CLEVITE INC.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:I-T-E IMPERIAL CORPORATION;REEL/FRAME:003993/0242

Effective date: 19810928

Owner name: IMPERIAL CLEVITE INC.,ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:I-T-E IMPERIAL CORPORATION;REEL/FRAME:003993/0242

Effective date: 19810928

AS Assignment

Owner name: CLEVITE INDUSTRIES INC., A CORP. OF DE.

Free format text: MERGER;ASSIGNOR:IMPERIAL CLEVITE INC., A PA. CORP. (MERGED INTO);REEL/FRAME:004600/0610

Effective date: 19860615

Owner name: CLEVITE INDUSTRIES INC., A CORP. OF DE.,STATELESS

Free format text: MERGER;ASSIGNOR:IMPERIAL CLEVITE INC., A PA. CORP. (MERGED INTO);REEL/FRAME:004600/0610

Effective date: 19860615

AS Assignment

Owner name: PULLMAN COMPANY, THE, A DE. CORP.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CLEVITE INDUSTRIES INC.,;REEL/FRAME:005165/0550

Effective date: 19890811