WO2016177928A1 - Outil de type clé pour le montage de vis sans tête et analogues - Google Patents

Outil de type clé pour le montage de vis sans tête et analogues Download PDF

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Publication number
WO2016177928A1
WO2016177928A1 PCT/ES2016/070344 ES2016070344W WO2016177928A1 WO 2016177928 A1 WO2016177928 A1 WO 2016177928A1 ES 2016070344 W ES2016070344 W ES 2016070344W WO 2016177928 A1 WO2016177928 A1 WO 2016177928A1
Authority
WO
WIPO (PCT)
Prior art keywords
stud
section
radius
transmission part
coupling
Prior art date
Application number
PCT/ES2016/070344
Other languages
English (en)
Spanish (es)
Inventor
Guillermo Petri Larrea
Original Assignee
Guillermo Petri Larrea
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 Guillermo Petri Larrea filed Critical Guillermo Petri Larrea
Priority to EP16726349.0A priority Critical patent/EP3321034B1/fr
Priority to ES16726349T priority patent/ES2826379T3/es
Publication of WO2016177928A1 publication Critical patent/WO2016177928A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/103—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for gripping threaded studs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same

Definitions

  • the present invention relates generally to a key type tool for mounting studs, bolts and similar and more particularly that allows to maintain the position or torque applied to the stud / bolt securely when said tool is removed or removed. of the stud already mounted on the corresponding parts union.
  • a stud / bolt is a headless screw with two totally or partially threaded ends that is used for coupling two work pieces that must be held together under a certain tension.
  • Said studs / bolts may have various configurations as is known in the current art.
  • This tool consists of a tube with a unscrewed tip for application of the unfastening torque and an eccentric that penetrates the tube to press against the surface of the stud, so that also here there can be a deterioration of the thread that damages or even prevents the subsequent use of said stud.
  • the invention aims at the development of a key type tool that allows solving the problem posed, guaranteeing that when the bolt / bolt is already disengaged, the position and / or torque is not varied of tightening said bolt / bolt, further guaranteeing that the tightening force / tension is applied only axially to distribute the tightening torque evenly over the threading of the stud.
  • a key type tool for mounting studs and the like for mounting a stud or the like with at least one partially or fully threaded tip, said useful characterized in that:
  • a mouthpiece externally has respective coaxial mouth and neck cylindrical portions and with a through inner hole extending between said mouth and neck portions with axial symmetry with respect to an axis and being delimited in said inner hole:
  • a threaded cylindrical lower section with a first radius and a first thread passage to coaxially engage by screwing on the at least one threaded end of the stud to be mounted; b) an intermediate section with a first conical trunk section extending from the top of the first section, then a second cylindrical section with a second radius that is smaller than the first radius; Y
  • a piece of transmission of the movable tightening force / tension is provided, axially within the fourth threaded section of said cylindrical upper section and whose transmission part has an upper end for application of the tightening force / tension and a lower end for transmission thereof to the stud to be mounted;
  • a centering stop is provided arranged to move in the axial direction which has a head sized to support tightly in the third section of the upper section and an end rod to extend from the intermediate section to the lower section, so that its end can rest against the stud to be mounted;
  • Coupling / decoupling means which, by turning in a first direction of rotation, allow the transmission piece through its lower end to rest against the head of the centering stop, moving it so that its end rod rests against the stud. and the clamping force / tension applied at the upper end of the transmission part is thereby transmitted to the mouthpiece in which said stud is threaded; while by turning in a second direction of rotation, opposite to the first direction of rotation, said coupling / disengaging means cause the transmission piece to stop supporting against the centering stop, so that said centering stop stops exerting pressure against the stud and the torque applied to the transmitting part is applied to the mouth and thereby unscrew the stud.
  • the fourth section of the upper cylindrical section is threaded with a second thread pitch that is larger than the first thread pitch and that the transmission part has an external thread for coupling by means of said threading fourth section of the upper cylindrical section.
  • the coupling / uncoupling means are constituted by an assembly forming an orthogonally projecting pin from the lateral surface of the transmission piece and a hole collision arranged inclined in the neck portion of the mouthpiece for displacement of said pin.
  • the pin of the transmission part and said transmission part of are provided as separate parts.
  • the transmission part is configured at its upper end as a hub / bushing for coupling of clamping tools, such as hand, power or pneumatic tools.
  • the free end of the end rod of the centering stop is configured to fit tightly against the end of the stud to be mounted.
  • the free end of the end rod of the centering stop is concave, convex, flat, flat with a central tip, or with a conical tip, for respective engagement fitted on a respective stud / bolt made by hot stamping , cold stamping, sawing, machining and shearing.
  • Figure 1 shows various configurations of machined studs / bolts according to the prior art to facilitate the coupling of flanges or fastening tools that are used to guarantee the position and / or the torque using stud mounting tools according to the prior art
  • Figure 2 shows an exploded view in elevation and partially sectioned of a key type tool according to a first embodiment of the invention.
  • Figure 3 shows an exploded view in elevation and partially sectioned of a key type tool according to a second embodiment of the invention.
  • Figures 4 to 6 show respective elevational and partially sectioned views of a key type tool according to Figure 3, in assembled state and respective operating positions.
  • Figures 7A to 7E show alternative configurations of the centering stop of the tool according to Figures 2 and 3, adapted for coupling to various configurations shown of the end of the stud / bolt to be mounted.
  • the key type tool consists of a coaxial assembly with a mouth portion (2) for coupling to the stud (E) to be assembled, a piece of transmission of the force / tension of tightening (3) and a centering stop (4) arranged movable inside the mouth portion to lock / unlock the stud with the action of the piece of transmission (3) with the aid of correspondingly provided coupling / decoupling means (5), as will be explained in detail below.
  • the mouthpiece (2) is externally configured with respective cylindrical mouth (20) and neck (21) coaxial portions and with an internal hollow (22) through which extends between said mouth and neck portions. It is observed that in said inner hollow (22) they are delimited with axial symmetry with respect to an axis (X):
  • the transmission part (3) has an upper end (30) for application of the tightening force / tension and a lower end (31) for transmission thereof to the stud to be mounted. It can be further seen that according to an embodiment advantageously at said upper end (30) it is configured as a hub / bushing (33) for coupling a clamping tool, for example manual, electric or pneumatic.
  • the centering stop (4) has a head (40), sized to fit tightly on the third section (2230) of the upper section (223) of the mouth portion (2) and a shank of limb (41) to extend from the intermediate section (221) to the lower section (220) of said mouth portion (2), so that with its axial displacement its end can rest against the end (E1) of the stud (E) to ride.
  • the coupling / uncoupling means (5) are constituted by a set formed by pin (32) protruding orthogonally from the lateral surface of the transmission piece (3) and by a collision hole (23) arranged inclined in the neck portion (21) of the mouthpiece (2) and in whose hole (23) said pin can be moved as will be explained in detail below.
  • said coupling / decoupling means (5) can be configured in accordance with any other arrangement, provided that by turning in a first direction of rotation (G1) they allow the transmission part (3) through its lower end (31) rest against the head (40) of the centering stop (4), moving it so that its end rod (41) rests against the stud (E) and the clamping force / tension applied to the upper end ( 30) of the transmission part is thereby transmitted to the mouthpiece (2) in which said stud is threaded; and that by turning in a second direction of rotation (G2), opposite to the first direction of rotation, said coupling / decoupling means (5) cause the transmission piece (3) to stop supporting against the centering stop (3), so that said centering stop stops exerting pressure against the stud to be assembled and the release torque applied to the transmitter piece is applied to the mouth and thereby unscrews the stud.
  • G1 first direction of rotation
  • said coupling / decoupling means (5) cause the transmission piece (3) to stop supporting against the centering stop (3), so that said centering stop stops
  • the free end of the end rod (41) of the centering stop (4) is configured to fit tightly against the end (E1) of the stud (E) to be mounted.
  • it can be configured at its concave or convex end (410) for hot and cold stamped studs / bolts as shown respectively in Figures 7A and 7B, flat with a small tip for machined studs / bolts as shown in Figure 7C, fully flat for studs / serrated bolts with is shown in Figure 7D or fully tapered for studs / shears as shown in Figure 7E.
  • FIG 3 A second embodiment of the invention is illustrated in Figure 3, which differs only from the embodiment shown in Figure 2, because the fourth section (2231) of the upper cylindrical section (223) is threaded with a second thread pitch (P2) which is smaller than the first thread passage (P2) and the transmission part (3) is provided with a thread for coupling to said thread with the second thread passage of said fourth section (2231) of the section upper cylindrical (223).
  • P2 second thread pitch
  • Figure 4 shows a position so to speak "neutral" of the tool (1) according to the second embodiment of the invention even without applying to a stud to be mounted (E). It can be seen that the transmission part (3) is partially threaded into the third section (2231) of the mouth (2), so that its lower end faces, by not coming into contact, the head (40) of the stop centering (4) and its end rod (41) being, passing through the intermediate section (221) of the mouth (2) just penetrated by its free end into the lower section (220) of said mouth.
  • the transmission part (3) is rotatably coupled to the stud to be mounted and the tightening torque applied to its upper part (30) can be transmitted to the stud to be mounted thanks to the friction coupling of the centering stop (4) and the stud (AND).
  • the tightening torque applied to its upper part (30) can be transmitted to the stud to be mounted thanks to the friction coupling of the centering stop (4) and the stud (AND).
  • the tool (1) according to the invention can be separated or removed from the stud without causing unfastening / dislocation of said stud / bolt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Electric Cable Installation (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)

Abstract

La présente invention concerne un outil de type clé pour le montage de vis sans tête et analogues, qui, lorsqu'il est désaccouplé de la vis sans tête/boulon déjà montée, conserve sa position et/ou son couple de serrage de ladite vis sans tête/dudit boulon, ce système permettant d'appliquer l'effort/la tension de serrage uniquement dans la direction axiale pour répartir le couple de serrage uniformément sur le filet de la vis sans tête. Cet outil (1) comprend un assemblage coaxial avec une partie d'ouverture (2) pour le couplage de la vis sans tête (E) à monter, une pièce de transmission de la force/tension de serrage (3) et une partie supérieure de centrage (4) disposée de manière déplaçable à l'intérieur de la partie d'ouverture pour bloquer/débloquer la vis sans tête avec l'actionnement de la pièce de transmission (3) à l'aide de moyens d'accouplement/désaccouplement (5) prévus à cet effet.
PCT/ES2016/070344 2015-05-07 2016-05-05 Outil de type clé pour le montage de vis sans tête et analogues WO2016177928A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16726349.0A EP3321034B1 (fr) 2015-05-07 2016-05-05 Outil pour le montage de goujons et des articles similaires
ES16726349T ES2826379T3 (es) 2015-05-07 2016-05-05 Util tipo llave para montado de espárragos y similares

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201530624A ES2589167B1 (es) 2015-05-07 2015-05-07 Útil tipo llave para montado de espárragos y similares
ESP201530624 2015-05-07

Publications (1)

Publication Number Publication Date
WO2016177928A1 true WO2016177928A1 (fr) 2016-11-10

Family

ID=56096647

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2016/070344 WO2016177928A1 (fr) 2015-05-07 2016-05-05 Outil de type clé pour le montage de vis sans tête et analogues

Country Status (4)

Country Link
EP (1) EP3321034B1 (fr)
ES (2) ES2589167B1 (fr)
PT (1) PT3321034T (fr)
WO (1) WO2016177928A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536320A (en) * 1924-10-02 1925-05-05 Apex Machine Co Automatic stud driver and releasing mechanism
US2351232A (en) * 1942-03-18 1944-06-13 Schnabolk Samuel Stud setting and removing tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB125298A (en) * 1918-08-01 1919-04-17 Edwin John Lane A New or Improved Tool for Inserting and Withdrawing Stud and Stay Bolts.
US3769861A (en) * 1972-05-04 1973-11-06 A Kisle Stud wrench
US4106178A (en) * 1976-12-10 1978-08-15 Seletyn James P Threaded stud driving tool
DE10340266A1 (de) * 2003-05-06 2004-11-25 Johannes Franzen Vorrichtung zum Ein- und/oder Ausdrehen von Stehbolzen sowie Stehbolzenrotationsvorrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536320A (en) * 1924-10-02 1925-05-05 Apex Machine Co Automatic stud driver and releasing mechanism
US2351232A (en) * 1942-03-18 1944-06-13 Schnabolk Samuel Stud setting and removing tool

Also Published As

Publication number Publication date
EP3321034A1 (fr) 2018-05-16
PT3321034T (pt) 2020-10-13
ES2826379T3 (es) 2021-05-18
EP3321034B1 (fr) 2020-07-29
ES2589167B1 (es) 2017-07-28
ES2589167A1 (es) 2016-11-10

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