EP3124178A1 - Reception d'outil a quatre pans et vis a percussion - Google Patents

Reception d'outil a quatre pans et vis a percussion Download PDF

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Publication number
EP3124178A1
EP3124178A1 EP15178426.1A EP15178426A EP3124178A1 EP 3124178 A1 EP3124178 A1 EP 3124178A1 EP 15178426 A EP15178426 A EP 15178426A EP 3124178 A1 EP3124178 A1 EP 3124178A1
Authority
EP
European Patent Office
Prior art keywords
securing
square
bolt
pin
securing bolt
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.)
Withdrawn
Application number
EP15178426.1A
Other languages
German (de)
English (en)
Inventor
Alexander Funk
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Priority to EP15178426.1A priority Critical patent/EP3124178A1/fr
Priority to CN201680015909.1A priority patent/CN107405758A/zh
Priority to US15/746,595 priority patent/US10759028B2/en
Priority to PCT/EP2016/067857 priority patent/WO2017017121A1/fr
Priority to EP16753267.0A priority patent/EP3328588B1/fr
Publication of EP3124178A1 publication Critical patent/EP3124178A1/fr
Withdrawn legal-status Critical Current

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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
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool
    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
    • B25B21/026—Impact clutches
    • 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

Definitions

  • the present invention relates to a square tool holder for an impact wrench, with an anvil, on which a drive square for receiving a tool, in particular a striking wrench nut, is arranged.
  • the square tool holder has a securing bolt for securing the tool received.
  • Square tool holders for impact wrenches in particular for tangential impact wrenches, are basically known from the prior art. They are used to hold tools such as impact wrenches or the like. By means of the locking bolt a recorded on the drive square tool is secured in position.
  • the object is achieved in that the securing bolt, perpendicular to the axis of rotation of the anvil, is spring-mounted in the drive square, wherein the securing bolt has a rounded, preferably hemispherical, surface which protrudes in a rebound state of the securing bolt of a holding surface of the drive square and is sunk at least partially in the support surface in a sprung state of the securing bolt.
  • the securing bolt is secured against falling out by at least one securing pin arranged in the drive square.
  • the invention includes the realization that safety bolts are typically difficult to replace in known prior art square tool receptacles or only cumbersome to repair in case of wear. It has also been recognized as disadvantageous that in prior art square tool receptacles, tool-less attachment and removal of impact wrenches is typically not possible.
  • the spring pin of the square tool holder according to the invention is spring-mounted, wherein the securing bolt has a rounded, preferably hemispherical, surface.
  • the square tool holder according to the invention also has the advantage that a weakening of the square cross-section through various holes and blind holes, as is typical in the case of square tool holders of the prior art, can be avoided by securing the locking pin against falling out by at least one locking pin arranged in the drive square ,
  • the square tool holder according to the invention is also particularly stable.
  • the locking pin extends parallel to the axis of rotation of the anvil.
  • the locking pin is arranged in a blind hole, which extends from an end face of the drive square parallel to the axis of rotation of the anvil.
  • An arrangement of the securing pin and / or the blind hole parallel to the axis of rotation, that is to the axis of action of the anvil and thus longitudinal to tensile and compressive stresses, means a significantly lower susceptibility to fracture of the anvil or the drive square.
  • the diameter of the securing pin is smaller than the smallest located within the drive square diameter of the securing bolt. This allows a comparatively small weakening of the cross section of the drive square.
  • the securing bolt is rotationally symmetrical.
  • the securing bolt may have a taper into which the locking pin engages in order to secure the locking bolt in the drive square.
  • the drive square has on its end face a Nutabsatz for receiving a securing element, wherein the securing element in the stored state, the securing pin position secured. It has proved to be advantageous if the securing element is a securing ring or a securing spring.
  • the securing bolt is spring-loaded by a compression spring, in particular a helical spring.
  • the helical spring can be arranged completely in a recess, preferably within a blind hole of the drive square. This is preferably both in the compressed and in the expanded state.
  • a second securing pin in particular exactly one second securing pin, is provided for securing the securing bolt against falling out.
  • the second locking pin is arranged parallel to the first locking pin. It has proven to be advantageous if the first and second locking pin spaced from each other on both sides of the locking bolt are arranged.
  • the first and second securing pin may be spaced apart from one another, wherein the distance corresponds to a width of a recess of the drive square which is designed to receive the securing bolt and / or the pressure spring.
  • the object is achieved by an impact wrench with a prescribed square tool receptacle for receiving a tool, in particular a wrench nut.
  • a square tool holder 10 in Fig. 1 has an anvil 1 on which a drive square 2 is arranged for receiving a tool, not shown here, for example a striking nut.
  • the square tool holder 10 has a securing bolt 3 for securing.
  • the safety pin 3 is perpendicular to the axis of rotation D of the anvil 1 movable drive square 2 stored.
  • the safety pin 3 is spring-loaded in the drive square 2 (see Fig. 4 ).
  • the safety pin 3 in this case has a hemispherical surface 3 'on.
  • Fig. 1 illustrated Sprung state AZ of the securing bolt 3 protrudes the hemispherical surface 3 'of the securing bolt 3 from a support surface 2' of the drive square 2 from.
  • a support surface is to be understood as meaning in particular a surface on which a tool accommodated on the drive square is supported and transmitted to the tool via the drive forces
  • the securing bolt 3 is secured against falling out by a first securing pin 4 and a second securing pin 4 '.
  • the first locking pin 4 and the second locking pin 4 'in respective blind holes 5, 5' are arranged, which in Fig. 1 are indicated by dashed lines, since they run within the drive square 2.
  • a not shown surface normal of the end face 2" extends parallel to the axis of rotation D of the anvil. 1
  • the drive square 2 has at its end face 2 "on a Nutabsatz 6.
  • the Nutabsatz 6 serves to receive a securing element 7, which is intended for securing the position of the first securing pin 4 and the second securing pin 4 ' Fig. 1 can be removed, the securing element 7 is provided as a securing ring.
  • the securing element 7 is not arranged on the Nutabsatz 6, so that the first locking pin 4 and the second locking pin 4 'can be easily disassemble or replace.
  • Fig. 2 shows the square tool holder 10 of Fig. 1 , wherein the securing element 7 is received on Nutabsatz 6.
  • a tool, not shown here, for example a wrench nut can be securely attached to the drive square 2.
  • Fig. 3 shows an example of a safety pin 3 of a square tool holder, not shown here.
  • the securing bolt 3 is rotationally symmetrical, based on an axis of symmetry S of the securing bolt 3.
  • the axis of rotation D of the anvil 1 points into the plane of the paper.
  • the securing bolt 3 also has a taper 3 ", which extends in the shape of a belt around the securing bolt 3.
  • the taper 3" serves to receive the securing pins in order to secure the securing bolt 3 in a drive square (cf. Fig. 4 ).
  • Fig. 4 shows a sectional view of the square tool holder 10 Fig. 1 along the section line AA.
  • the safety pin 3 in Fig. 4 is in a rebound state AZ, that is, its hemispherical surface 3 'protrudes from the support surface 2' of the drive square 2 from. In the present case, only the hemispherical surface 3 'protrudes from the holding surface 2'.
  • the helical spring 8 is arranged completely in a corresponding recess 8 'in the drive square 2.
  • the in Fig. 4 shown Sprung state AZ of the locking bolt 3 is as it were the maximum deflected state of the locking bolt 3, which is secured by the both sides of the locking bolt 3 arranged locking pins 4, 4 'against falling out.
  • the locking pins 4, 4 ' both an effective means against falling out and a stop limit for the safety pin 3 along the axis of symmetry S of the locking bolt 3 in two positions.
  • first and second locking pin 4, 4 ' are spaced apart by a distance A.
  • the distance A between the first and second locking pin 4, 4 ' corresponds to the diameter of the recess 8', in which both the coil spring 8 and, in sections, the locking bolt 3 is mounted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP15178426.1A 2015-07-27 2015-07-27 Reception d'outil a quatre pans et vis a percussion Withdrawn EP3124178A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP15178426.1A EP3124178A1 (fr) 2015-07-27 2015-07-27 Reception d'outil a quatre pans et vis a percussion
CN201680015909.1A CN107405758A (zh) 2015-07-27 2016-07-27 方头工具夹头和冲击式螺钉机
US15/746,595 US10759028B2 (en) 2015-07-27 2016-07-27 Square tool holder and impact wrench
PCT/EP2016/067857 WO2017017121A1 (fr) 2015-07-27 2016-07-27 Logement d'outil carré et tournevis à frapper
EP16753267.0A EP3328588B1 (fr) 2015-07-27 2016-07-27 Reception d'outil a quatre pans et vis a percussion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15178426.1A EP3124178A1 (fr) 2015-07-27 2015-07-27 Reception d'outil a quatre pans et vis a percussion

Publications (1)

Publication Number Publication Date
EP3124178A1 true EP3124178A1 (fr) 2017-02-01

Family

ID=53773266

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15178426.1A Withdrawn EP3124178A1 (fr) 2015-07-27 2015-07-27 Reception d'outil a quatre pans et vis a percussion
EP16753267.0A Active EP3328588B1 (fr) 2015-07-27 2016-07-27 Reception d'outil a quatre pans et vis a percussion

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP16753267.0A Active EP3328588B1 (fr) 2015-07-27 2016-07-27 Reception d'outil a quatre pans et vis a percussion

Country Status (4)

Country Link
US (1) US10759028B2 (fr)
EP (2) EP3124178A1 (fr)
CN (1) CN107405758A (fr)
WO (1) WO2017017121A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019155548A (ja) * 2018-03-14 2019-09-19 株式会社マキタ インパクト工具
WO2021180495A1 (fr) * 2020-03-11 2021-09-16 Hilti Aktiengesellschaft Outil à percussion

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6726892B2 (ja) * 2016-03-10 2020-07-22 パナソニックＩｐマネジメント株式会社 インパクト回転工具
CN110125858B (zh) * 2018-02-09 2021-07-30 米沃奇电动工具公司 冲击扳手和用于与其一起使用的砧座
CN113459024B (zh) 2020-03-31 2023-06-09 喜利得股份公司 用于动力工具的套筒保持装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5255993A (en) * 1992-05-08 1993-10-26 U.S. Government Represented By The Secretary Of The Army Push button coupler
US20020152848A1 (en) * 2001-04-20 2002-10-24 Johnson Theodore L. Quick release for use with impact wrench
EP1666207A2 (fr) * 2004-12-02 2006-06-07 Techtronic Industries Co., Ltd. Arbre étagé
WO2014154400A1 (fr) * 2013-03-26 2014-10-02 Atlas Copco Industrial Technique Ab Pièce de connexion et outil électrique comprenant une telle pièce de connexion
US20150190909A1 (en) * 2014-01-07 2015-07-09 Ingersoll-Rand Company Tools with Socket Retainers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576298A (en) * 1949-03-31 1951-11-27 Tri Clover Machine Co Shaft keying and locking construction
US2721090A (en) * 1952-03-15 1955-10-18 Thor Power Tool Co Socket retainer for rotary power tools
US3118696A (en) * 1960-12-28 1964-01-21 Atlas Copco Ab Socket retainers
SE349371B (fr) * 1969-09-26 1972-09-25 Atlas Copco Ab
US4962682A (en) * 1988-05-09 1990-10-16 Rose Stephen T Wrench extension and socket coupler
TWI397456B (zh) * 2011-06-17 2013-06-01 Peng Cheng Chia 具閉鎖定位結構之萬向接頭

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5255993A (en) * 1992-05-08 1993-10-26 U.S. Government Represented By The Secretary Of The Army Push button coupler
US20020152848A1 (en) * 2001-04-20 2002-10-24 Johnson Theodore L. Quick release for use with impact wrench
EP1666207A2 (fr) * 2004-12-02 2006-06-07 Techtronic Industries Co., Ltd. Arbre étagé
WO2014154400A1 (fr) * 2013-03-26 2014-10-02 Atlas Copco Industrial Technique Ab Pièce de connexion et outil électrique comprenant une telle pièce de connexion
US20150190909A1 (en) * 2014-01-07 2015-07-09 Ingersoll-Rand Company Tools with Socket Retainers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019155548A (ja) * 2018-03-14 2019-09-19 株式会社マキタ インパクト工具
WO2021180495A1 (fr) * 2020-03-11 2021-09-16 Hilti Aktiengesellschaft Outil à percussion

Also Published As

Publication number Publication date
WO2017017121A1 (fr) 2017-02-02
EP3328588B1 (fr) 2021-04-28
EP3328588A1 (fr) 2018-06-06
US20180207774A1 (en) 2018-07-26
US10759028B2 (en) 2020-09-01
CN107405758A (zh) 2017-11-28

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