WO1999050028A1 - Element de tournevis - Google Patents

Element de tournevis Download PDF

Info

Publication number
WO1999050028A1
WO1999050028A1 PCT/EP1999/001582 EP9901582W WO9950028A1 WO 1999050028 A1 WO1999050028 A1 WO 1999050028A1 EP 9901582 W EP9901582 W EP 9901582W WO 9950028 A1 WO9950028 A1 WO 9950028A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
holder sleeve
opening
head
tool
Prior art date
Application number
PCT/EP1999/001582
Other languages
German (de)
English (en)
Inventor
Daniel Gasser
Original Assignee
Sfs Industrie Holding 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 Sfs Industrie Holding Ag filed Critical Sfs Industrie Holding Ag
Priority to AU33302/99A priority Critical patent/AU3330299A/en
Publication of WO1999050028A1 publication Critical patent/WO1999050028A1/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
    • B25B23/005—Screw guiding means
    • 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
    • B25B23/101—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for hand-driven screw-drivers

Definitions

  • the invention relates to a screwdriver element for receiving and holding a fastener head and for driving the same during a drilling and / or thread forming process and / or during a screwing process of screws with a head whose diameter is the same size or only slightly larger than the outside diameter of the Thread area of the screw.
  • the present invention has therefore set itself the task of creating a screwdriver element of the type mentioned, with which even screws with a relatively long length can be properly set and at the same time achieve this with structurally simple means.
  • a rod-like tool that can be brought into active connection with a hand-held device or a screwdriver with an attack for an internal attack on a screw and a holder sleeve that is displaceably arranged relative to the rod-like tool, the opening of which is equal in diameter or insignificantly larger than the diameter of the Head of a screw to be received and thus of the thread region adjoining the head, the axial depth of the opening in the holder sleeve having a multiple of the axial height of the head of a screw to be inserted or a multiple of the thread pitch of the threaded section of a screw, so that the screw accordingly can be inserted deeply into the opening and is operatively connected to the wall of the opening at least over a large part of the entire displacement area and Shank of the screw to prevent the same from tipping over at least at the mouth edge of the opening.
  • the holder sleeve comes to rest on the workpiece to be fastened before the screw is finally placed, the head still lying in the lowest position within the screwdriver element.
  • the screwdriver element is turned further, the holder sleeve can slide back on the rod-like tool, so that the screw is released more and more, but the attack of the tool is still engaged with the internal attack on the head of the screw and continues to come out of the screwdriver element, i.e. the holder sleeve leads out.
  • the rod-like tool and the head of the screw remain in constant engagement with one another for torque transmission. This ensures that the screwdriver element remains in the necessary engagement with the head of the screw even in manual assembly until the screw is finally set.
  • the task according to the invention can be solved with very simple constructive means, namely with a rod-like tool and a holder sleeve that can be displaced on it, a corresponding robustness is guaranteed at the same time when used in the construction site.
  • the simple structural measures not only achieve an optimum effect, but also create a screwdriver element which can be produced at relatively low costs.
  • the axial depth of the opening in the holder sleeve has at least three to five times the axial height of the head or a thread pitch of the thread area of a screw to be inserted, the deeper the opening is, the better the mutual axis alignment between the screw and the screwdriver element is optimized.
  • the displacement of the holder sleeve on the rod-like tool must also be adapted to the depth of the opening, so that the length of the holder sleeve and thus also the depth of the The opening must be restricted to a certain dimension in order not to cause the screwdriver element to be too long in the axial direction.
  • the holder sleeve is designed as a hollow cylinder with a bottom arranged at one end, the bottom having a through hole for slidably receiving the rod-like tool.
  • care is naturally also taken to ensure that the bottom of the holder sleeve is made relatively thick when viewed in the axial direction. Tilting and thus jamming of the holder sleeve on the rod-like tool can thereby be reliably prevented.
  • the holder sleeve remains in its rest position and is always returned to it, it is expedient if the holder sleeve is slidably held on the rod-like tool in a spring-loaded manner.
  • the holder sleeve is held by means of a helical spring in a position in which the attack of the rod-like tool lies in the deepest point within the opening in the holder sleeve. This ensures that the screwdriver element, ie the mutual position between the holder sleeve and the rod-like tool, is always in the starting position when starting with a screwing process, i.e. a screw is inserted into the screwdriver element.
  • the length of the displacement path between the rod-like tool and the holder sleeve be the same or greater than the depth of the opening in the holder sleeve. This ensures that the tool can remain in engagement with the screw in the area outside the holder sleeve, in order to leave open the possibility of being able to screw in the screw to such an extent that it is sunk relative to the surface of the workpiece. For this it is necessary that the attack at the free end of the rod-like tool can be carried out beyond the free end of the holder sleeve, i.e. the holder sleeve must be able to be pushed back by the appropriate amount on the rod-like tool.
  • the screwdriver element is not only protected in the area of the coil spring, but also in the area of the rotating parts thereof, and also cannot be mechanically damaged
  • the screwdriver element is supplemented by a tube piece that at least covers the area of the coil spring and can be firmly connected to the screwing device.
  • a cover which coaxially surrounds the screwdriver element is thus present.
  • such a piece of pipe can also be used as a depth stop, namely when it is adjustable on the screwing device in the axial direction and, if necessary, lockable.
  • the holder sleeve also protrude at least with a portion of its axial length into the tube piece in the rest position of the same. Accordingly, only a corresponding area of the holder sleeve protrudes beyond the free end of the pipe section, so that the rear end of the holder sleeve always protrudes - even if only slightly - into the pipe section.
  • the holder sleeve at its freely projecting insert end both in the area of the inner wall and in the - 5 -
  • Area of the outer boundary is rounded or chamfered. This makes the screw easier to insert into the opening of the holder sleeve, since the rounding or chamfer forms a kind of insertion funnel.
  • the rounding or chamfering on the outer boundary of the holder sleeve when placing the same on the workpiece is advantageous because after the placement no sharp edge is used, even if it is not screwed in at right angles to the surface of the workpiece.
  • FIG. 1 shows a screwdriver element according to the invention, the holder sleeve provided here being shown in a longitudinal section;
  • Fig. 2 shows a screwdriver element inserted into a screwdriver, a pipe section that can be connected to the screwdriver additionally covering a partial area of the screwdriver element.
  • a screwdriver element 1 is concerned with receiving and holding a screw 2 during a drilling and / or thread forming process and / or during a screwing-in process of such a screw.
  • the screwdriver element 1 provided for this purpose is specially designed for screws 2 with a head 3, the diameter of which is the same size or only slightly larger than the outer diameter DA of the threaded area 4 of the screw 2.
  • Such a screw 2 also has an internal attack 5 in the head 3.
  • the further configuration of the screw 2 with an additional thread area 6 and a drill tip 7 is irrelevant to the present invention. Any type of screw, including a screw without a drill tip 7 or instead of a drill tip 7 with a penetration tip, with a continuous thread, etc., can be used and processed with the screwdriver element according to the invention.
  • the screwdriver element 1 consists of a rod-like tool 8 and a holder sleeve 9.
  • the rod-like tool 8 has at one end an attack 10 which can be used in the internal attack 5 of the screw 2.
  • an insertion pin 11 is provided, which is designed here as a hexagon.
  • the insert bolt 1 1 is used for engagement and for torque transmission in cooperation with a screwing device.
  • the holder sleeve 9 is displaceably arranged relative to the rod-like tool 8 and has an opening 1 2, the diameter D ⁇ of which is the same size or slightly larger than the diameter of the head 3 and thus of the threaded region 4 adjoining the head 3.
  • the axial depth T of the Opening 1 2 in the holder sleeve 9 is a multiple of the axial height LK of the head 3 of the screw 2 to be used. Furthermore, the axial depth T can additionally or exclusively correspond to a multiple of the thread pitch S of the threaded section 4 of the screw 2.
  • the screw 2 can be inserted correspondingly deep into the opening 1 2 of the holder sleeve 9, so that not only the head 3 but also the threaded section 4 is in operative connection with the wall 1 3 of the opening 1 2 over a large part of the entire displacement range.
  • the screw 2 can be supported at least at the mouth edge of the opening 1 2, so that the screw 2 is prevented from tilting when it is attached or screwed in.
  • the axial depth T of the opening 1 2 is at least three to five times the axial height LK of the head 3 or a thread pitch S of the thread area 4 of the screw 2 to be used.
  • the length of the axial depth T can vary, i.e. in the case of a screw head which is relatively large in the axial direction, the corresponding multiple can be reduced. It is clear that when using a screw head with an axial length which is a multiple of the usual axial height LK, the dimensioning of the axial depth T can no longer be derived from a multiple of the axial height LK of the head. If necessary, even the simple height is sufficient, since the screw head already has a corresponding axial height. In the case of a corresponding multiple of the height of the screw head or the thread pitch, it is assumed that the screw head or thread pitch is usually used.
  • the holder sleeve 9 is designed as a hollow cylinder with a bottom 14 arranged at one end, the bottom having a through hole 15 for slidably receiving the rod-like tool 9.
  • a continuous holder sleeve 9 in which two sections of bores of different diameters are present, on the one hand for the opening 1 2 and on the other hand for the through hole 1 5.
  • the holder sleeve 9 is spring-loaded slidably on the rod-like tool 8, for which purpose a coil spring 16 is provided, which the rod-like Tool 8 coaxially encloses.
  • the helical spring 16 has the effect that the holder sleeve 9 is always held in a rest position, as shown in FIGS. 1 and 2. In this rest position, the attack 10 of the rod-like tool 8 is in the lowest position within the opening 12.
  • the helical spring 16 is inserted between two ring-shaped stop elements 17 and 18, the stop element 18 following the displacement movement of the holder sleeve 9.
  • An O-ring 20 inserted into a groove 19 on the rod-like tool 8 is provided as a counter-holder and thus as a mutual securing of the position between the rod-like tool 8 and the holder sleeve 9.
  • the attack 10 In the rest position, the attack 10 should be arranged in the lowest position within the opening 12 of the holder sleeve 9. For a screwing operation until the end of the same, the attack 10 must, however, be able to be carried out into a position in which it projects beyond the free end of the holder sleeve 9. Therefore, the length LV of the displacement path between the rod-like tool 8 and the holder sleeve 9 is equal to or greater than the depth T of the opening 12 in the holder sleeve 9.
  • the holder sleeve 9 - see FIGS. 1 and 2 - is rounded or chamfered both in the area of the inner wall and in the area of the outer boundary.
  • a pipe piece 21 is additionally provided, which can be connected to corresponding elements 22 of a screwing device.
  • the pipe piece 21 can also be used as a depth stop if this can be connected in an axially adjustable and fixable manner.
  • the holder sleeve 9 projects into the tubular piece 21 at least with a portion of its axial length.
  • the holder sleeve 9 is coaxially enclosed by the pipe piece 21 with radial play.
  • the pipe piece 21 does not have to assume any guiding properties, but only has to form a cover for the area of the screwdriver element in order to prevent access to the mutually displaceable elements and to the coil spring
  • the rod-like tool 8 is usually made of a special steel, whereas the holder sleeve 9 can consist of both metal and plastic. Needed of course it corresponding strength and also a corresponding abrasion resistance and rigidity of the holder sleeve 9.
  • the spring load between rod-like tool 8 and holder sleeve 9 is expediently provided in order to be able to return the holder sleeve 9 to the starting position again and again. If such a tool is always used in an approximately vertical direction, it is also conceivable that the holder sleeve 9 is returned to this position solely by its own weight. In this case, the coil spring 1 6 can be omitted. For a better function of the entire screwdriver element, the version with an integrated coil spring 1 6 is always preferred.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

L'invention concerne un élément de tournevis servant à recevoir et à maintenir une tête de fixation et à entraîner cette dernière pendant une opération de perçage et/ou de filetage et/ou pendant une opération de pose de vis (2), ladite vis comportant une tête (5) dont le diamètre est égal ou légèrement supérieur au diamètre extérieur (DA) de la zone filetée de la vis (2). Cet élément de tournevis est muni d'un outil en forme de barre (8) comportant un élément d'application (10) destiné à entrer en contact avec un élément intérieur (5) sur une vis (2), et d'une douille support (9) montée de façon à pouvoir se déplacer par rapport à l'outil en forme de barre (8). Le diamètre (DÖ) de l'orifice (12) de la douille support (9) est égal ou légèrement supérieur au diamètre (DA) de la tête (3) d'une vis (2) à loger dans l'orifice, et par conséquent au diamètre de la zone filetée (4) reliée à la tête (3). La profondeur axiale de l'orifice (12) dans la douille support (9) est un multiple de la hauteur axiale (LK) de la tête (3) d'une vis à introduire (2) ou un multiple du pas de filetage (S) de la zone filetée (4) d'une vis (2). Cette vis (2) peut ainsi être introduite profondément dans l'orifice et coopère, au moins sur une grande partie de la totalité de la zone de coulissement, avec la paroi de l'orifice (12). En outre, la tige de la vis (2) prend appui au moins sur le bord d'ouverture de l'orifice (12) pour empêcher la vis de basculer.
PCT/EP1999/001582 1998-03-31 1999-03-11 Element de tournevis WO1999050028A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33302/99A AU3330299A (en) 1998-03-31 1999-03-11 Screw driving element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29805902.9 1998-03-31
DE29805902U DE29805902U1 (de) 1998-03-31 1998-03-31 Schrauberelement

Publications (1)

Publication Number Publication Date
WO1999050028A1 true WO1999050028A1 (fr) 1999-10-07

Family

ID=8055114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/001582 WO1999050028A1 (fr) 1998-03-31 1999-03-11 Element de tournevis

Country Status (3)

Country Link
AU (1) AU3330299A (fr)
DE (1) DE29805902U1 (fr)
WO (1) WO1999050028A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026080A1 (de) 2007-05-25 2008-11-27 Swg Schraubenwerk Gaisbach Gmbh Halterungsanordnung
CN106005427A (zh) * 2016-06-27 2016-10-12 广州飞机维修工程有限公司 航空座椅前脚底座装配工具
TWI781731B (zh) * 2021-08-18 2022-10-21 劉欽鎮 具有伸爪驅動機構之固著釘

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343642A1 (de) * 2003-09-12 2005-04-07 Gast, Karl Heinz, Dipl.-Ing. (FH) Halter und Verfahren zum Betreiben für Schrauben und Schraubwerkzeuge
DE102019133615A1 (de) * 2019-12-10 2021-06-10 Bayerische Motoren Werke Aktiengesellschaft Schutzelement für ein Schraubwerkzeug, Verwendung eines solchen Schutzelements sowie Schraubvorrichtung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB104195A (en) * 1916-02-18 1917-02-19 Alexander Gilmour Hanvey Improvements relating to Screw Driving Tools.
US1333437A (en) * 1917-04-12 1920-03-09 Monroe Power Screw Driver Comp Screwdriver
US1539782A (en) * 1923-10-08 1925-05-26 Clyde H Stansell Power-driven screw driver
DE819829C (de) * 1950-08-11 1951-11-05 Franz Arndt Schraubenzieher
US2780257A (en) * 1953-12-14 1957-02-05 Morgan T Duggan Screw holding and guiding means for a screwdriver bit
US2829685A (en) * 1957-01-31 1958-04-08 Hommel Corp Power operated screw driver
US4581963A (en) * 1985-07-03 1986-04-15 Kim Han K Screw holding device for screwdrivers
FR2696925A1 (fr) * 1992-10-19 1994-04-22 Sanouiller Jean Louis Nécessaire de chirurgie orthopédique destiné à réaliser l'ancrage de la partie osseuse d'un ligament dans un tunnel osseux.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US343150A (en) * 1886-06-01 Screw-driver
BE789684A (fr) * 1972-01-20 1973-02-01 Lana Garnet L Tete d'outil
US4800788A (en) * 1987-04-04 1989-01-31 Innovative Computer Tools, Inc. Non-slip screwdriver
US5009133A (en) * 1988-07-14 1991-04-23 Carey David R Surface protective fastener tool

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB104195A (en) * 1916-02-18 1917-02-19 Alexander Gilmour Hanvey Improvements relating to Screw Driving Tools.
US1333437A (en) * 1917-04-12 1920-03-09 Monroe Power Screw Driver Comp Screwdriver
US1539782A (en) * 1923-10-08 1925-05-26 Clyde H Stansell Power-driven screw driver
DE819829C (de) * 1950-08-11 1951-11-05 Franz Arndt Schraubenzieher
US2780257A (en) * 1953-12-14 1957-02-05 Morgan T Duggan Screw holding and guiding means for a screwdriver bit
US2829685A (en) * 1957-01-31 1958-04-08 Hommel Corp Power operated screw driver
US4581963A (en) * 1985-07-03 1986-04-15 Kim Han K Screw holding device for screwdrivers
FR2696925A1 (fr) * 1992-10-19 1994-04-22 Sanouiller Jean Louis Nécessaire de chirurgie orthopédique destiné à réaliser l'ancrage de la partie osseuse d'un ligament dans un tunnel osseux.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026080A1 (de) 2007-05-25 2008-11-27 Swg Schraubenwerk Gaisbach Gmbh Halterungsanordnung
CN106005427A (zh) * 2016-06-27 2016-10-12 广州飞机维修工程有限公司 航空座椅前脚底座装配工具
TWI781731B (zh) * 2021-08-18 2022-10-21 劉欽鎮 具有伸爪驅動機構之固著釘

Also Published As

Publication number Publication date
DE29805902U1 (de) 1999-07-29
AU3330299A (en) 1999-10-18

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