FR2709261A1 - Device for reconditioning male screw threads - Google Patents

Device for reconditioning male screw threads Download PDF

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Publication number
FR2709261A1
FR2709261A1 FR9310438A FR9310438A FR2709261A1 FR 2709261 A1 FR2709261 A1 FR 2709261A1 FR 9310438 A FR9310438 A FR 9310438A FR 9310438 A FR9310438 A FR 9310438A FR 2709261 A1 FR2709261 A1 FR 2709261A1
Authority
FR
France
Prior art keywords
reconditioning
nut
male screw
screw threads
parts
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.)
Pending
Application number
FR9310438A
Other languages
French (fr)
Inventor
Du Chapelet Francois
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.)
CHAPELET FRANCOIS DU
Original Assignee
CHAPELET FRANCOIS DU
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 CHAPELET FRANCOIS DU filed Critical CHAPELET FRANCOIS DU
Priority to FR9310438A priority Critical patent/FR2709261A1/en
Publication of FR2709261A1 publication Critical patent/FR2709261A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G9/00—Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
    • B23G9/009—Thread cleaning or repairing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

Method making it possible to recondition threaded rods which have become damaged during dismantling or other operation. It consists of a tapped nut (Figure 1) made in two parts (A and B) and of a sleeve (Figure 2) pierced at the bottom and of two knurled clamping knobs and of a male hexagon fitting at the back. The method according to the invention is intended for the field of mechanical engineering, for reconditioning threaded rods.

Description

DESCRIPTION
La présente invention concerne un procédé permettant de rénover des axes filetés et de revisser sans difficulté un écrou sur cet axe dont l'embout ou les premiers filets ont été détériorés lors du démontage ou d'un mauvais revissage mais ne reconstitue pas le filetage et ne sera efficace que si il reste des filets en bon état (de largeur de l'écrou à visser).DESCRIPTION
The present invention relates to a method making it possible to renovate threaded axes and to screw back without difficulty a nut on this axis, the end piece or the first threads of which have been damaged during disassembly or poor screwing but does not restore the thread and does not will be effective only if there are threads in good condition (width of the screw nut).

Ce procédé se compose d'un écrou taraudé en deux parties de forme héxagonale (pouvant être carré ou rond) et d'une douille s'emboitant sur l'écrou, percée dans le fond pour laisser passer l'embout de l'axe fileté à rénover, munie de deux mulettes de serrage pour maintenir une pression sur les deux parties de l'écrou autour de l'axe lors du dévissage et d'un embout mâle six pans. Ce procédé permet la rénovation de tous les diamètres de filetages ainsi que tous les types de pas (franglais et étrangers). This process consists of a tapped nut in two parts of hexagonal shape (can be square or round) and a socket fitting on the nut, drilled in the bottom to let pass the end of the threaded axis to renovate, fitted with two clamping knobs to maintain pressure on the two parts of the nut around the axis during unscrewing and with a hexagonal male end. This process allows the renovation of all thread diameters as well as all types of pitches (English and foreign).

Les dessins annexés illustrent l'invention. Les figures 1 et 4 représentent l'écrou en deux parties de face et de profil. The accompanying drawings illustrate the invention. Figures 1 and 4 show the nut in two front and side sections.

Les figures 2 et 5 représentent la douille de face et de profil. Figures 2 and 5 show the socket from the front and in profile.

La figure 3 représente une vue d'ensemble. Figure 3 shows an overview.

En référence à ces dessins, le procédé se compose d'un écrou taraudé de forme héxagonale (figure 1) en deux partie (A et B) et d'une douille (figure 2) percée dans le fond pour laisser passer l'axe, de deux molettes de serrage (C et D) et d'un embout mâle six pans à l'arrière (figure 5). With reference to these drawings, the process consists of a tapped nut of hexagonal shape (Figure 1) in two parts (A and B) and a socket (Figure 2) pierced in the bottom to let the axis pass, two clamping knobs (C and D) and a hexagonal male end piece at the rear (Figure 5).

Les deux parties de l'écrou (A et B) figure 1 et 3 sont disposés autour de l'axe fileté à rénover à l'endroit ou le filetage est en bon état, non sur le bout de l'axe. The two parts of the nut (A and B) Figure 1 and 3 are arranged around the threaded axis to be renovated where the thread is in good condition, not on the end of the axis.

L'écrou (figure 1) est maintenu dans la douille (figure 2) puis serré légèrement à l'aide des deux molettes (C et D) pour exercer une pression sur l'axe. The nut (Figure 1) is held in the socket (Figure 2) and then slightly tightened using the two knobs (C and D) to exert pressure on the axis.

La rénovation du filetage s'effectue en devissant l'écrou (figure 1 et 4) à l'aide de la douille (figure 2 et 5) jusqu'à dévissage complet. I1 ne reste plus, ensuite qu'à revisser un écrou neuf sur l'axe. The renovation of the thread is carried out by unscrewing the nut (Figure 1 and 4) using the socket (Figure 2 and 5) until completely unscrewed. I1 does not remain any more, then that to screw again a new nut on the axis.

Le procédé selon l'invention est destiné au domaine mécanique pour rénover des axes filetés.  The method according to the invention is intended for the mechanical field for renovating threaded axes.

Claims (4)

REVENDICATIONS 1) Dispositif permettant de rénover des axes filetés, caractérisé en ce que l'on utilise un écrou taraudé séparé en deux parties ayant une forme extérieure sur laquelle vient s'emboîter une douille munie de molettes de serrage; d'un fond percé pour laisser passer l'axe; et d'un embout mâle six pans.1) Device for renovating threaded pins, characterized in that a tapped nut is used which is separated into two parts having an external shape on which a socket fitted with clamping wheels fits; a drilled bottom to let the axis pass; and a male hex socket. 2) Dispositif selon la revendication 1 caractérisé en ce que la forme extérieure est hexagonale.2) Device according to claim 1 characterized in that the outer shape is hexagonal. 3)Dispositif selon la revendication 1 caractérisé en ce que la forme extérieure est carrée.3) Device according to claim 1 characterized in that the outer shape is square. 4) Dispositif selon la revendication 1 caractérisé en ce que la forme est ronde. 4) Device according to claim 1 characterized in that the shape is round.
FR9310438A 1993-08-26 1993-08-26 Device for reconditioning male screw threads Pending FR2709261A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9310438A FR2709261A1 (en) 1993-08-26 1993-08-26 Device for reconditioning male screw threads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9310438A FR2709261A1 (en) 1993-08-26 1993-08-26 Device for reconditioning male screw threads

Publications (1)

Publication Number Publication Date
FR2709261A1 true FR2709261A1 (en) 1995-03-03

Family

ID=9450491

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9310438A Pending FR2709261A1 (en) 1993-08-26 1993-08-26 Device for reconditioning male screw threads

Country Status (1)

Country Link
FR (1) FR2709261A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006326731A (en) * 2005-05-25 2006-12-07 Light Seiki Kk Tool for correcting screw thread
CN103231130A (en) * 2013-04-22 2013-08-07 苏州工业园区职业技术学院 Novel screw tap corrector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346491A (en) * 1979-11-13 1982-08-31 Rethread, Inc. Thread repair tool
JPS60232824A (en) * 1984-04-27 1985-11-19 Toshihiko Korenobu Bolt screw thread correcting device
US4942752A (en) * 1985-09-19 1990-07-24 Sheldon Helfman Apparatus for reforming and restoring the surface of a cylindrical workpiece manually

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346491A (en) * 1979-11-13 1982-08-31 Rethread, Inc. Thread repair tool
JPS60232824A (en) * 1984-04-27 1985-11-19 Toshihiko Korenobu Bolt screw thread correcting device
US4942752A (en) * 1985-09-19 1990-07-24 Sheldon Helfman Apparatus for reforming and restoring the surface of a cylindrical workpiece manually

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"La réparation des filets détériorés", MECANIC, vol. 22, no. 2, February 1961 (1961-02-01), BERCHEM BE, pages 38 - 39 *
PATENT ABSTRACTS OF JAPAN vol. 10, no. 96 (M - 469)<2153> 12 April 1986 (1986-04-12) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006326731A (en) * 2005-05-25 2006-12-07 Light Seiki Kk Tool for correcting screw thread
JP4523486B2 (en) * 2005-05-25 2010-08-11 ライト精機株式会社 Thread correction tool
CN103231130A (en) * 2013-04-22 2013-08-07 苏州工业园区职业技术学院 Novel screw tap corrector
CN103231130B (en) * 2013-04-22 2016-03-02 苏州工业园区职业技术学院 Novel screw tap corrector

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