EP2698231B1 - Poignée de tournevis dotée d'un magasin pour embouts de tournevis - Google Patents

Poignée de tournevis dotée d'un magasin pour embouts de tournevis Download PDF

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Publication number
EP2698231B1
EP2698231B1 EP13171232.5A EP13171232A EP2698231B1 EP 2698231 B1 EP2698231 B1 EP 2698231B1 EP 13171232 A EP13171232 A EP 13171232A EP 2698231 B1 EP2698231 B1 EP 2698231B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
cavity
bits
screwdriver
rear end
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.)
Active
Application number
EP13171232.5A
Other languages
German (de)
English (en)
Other versions
EP2698231A2 (fr
EP2698231A3 (fr
Inventor
Thomas Schandelmaier
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.)
Wiha Werkzeuge GmbH
Original Assignee
Wiha Werkzeuge GmbH
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 Wiha Werkzeuge GmbH filed Critical Wiha Werkzeuge GmbH
Publication of EP2698231A2 publication Critical patent/EP2698231A2/fr
Publication of EP2698231A3 publication Critical patent/EP2698231A3/fr
Application granted granted Critical
Publication of EP2698231B1 publication Critical patent/EP2698231B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/08—Handle constructions with provision for storing tool elements
    • B25G1/085—Handle constructions with provision for storing tool elements for screwdrivers, wrenches or spanners

Definitions

  • the invention relates to a screwdriver handle with a magazine for screwdriver bits (bits) according to the preamble of patent claim 1.
  • a screwdriver handle of the type mentioned is known in which the magazine is formed for the bits in the screwdriver handle.
  • a grip body of the handle has a cylindrical cavity in which a shaft is coaxially arranged.
  • a sleeve is axially displaceable, on the outer circumference of which the bits can be clamped.
  • the sleeve with the bits can be slid on the shaft to a storage position within the cavity. If the sleeve is pulled out of the cavity into a removal position, the bits are accessible laterally from the sleeve and can be removed or inserted.
  • the bits are held on the sleeve in spring clips, so that they rest axially parallel to the outer circumference of the sleeve.
  • the bits are in the circumferential direction with arranged at low mutual angular distance, whereby the detection of the bits during removal and insertion is difficult.
  • the invention is based on the object, a screwdriver handle with a magazine for bits in such a way that with the same capacity recording the bits in the removal position can be easily removed and used.
  • an inner cylindrical cavity of the handle body serves to receive the bits.
  • the bits can be inserted into a bit holder which can be pushed out of the cavity of the handle body into a removal position by means of a sleeve which can be axially displaced on an inner shaft.
  • the bit holder has a seated at the inner end of the sleeve bit receptacle, in which the bits are used with their end. In the storage position, the bit holder is thus at the inner front end of the cavity and the bits lie axially parallel to the outer circumference of the sleeve.
  • the bits can be arranged with minimum mutual angular distance, so that an optimal utilization of the cavity for the reception of the bits is achieved.
  • the bit holder In order to spread the bits into the removal position, the bit holder is preferably positively guided in the cavity. The spreading of the bits is thereby inevitably, when the bit holder is pushed into the removal position.
  • the positive guide can be a mechanical gate or cam guide, which pulls the bit holder at the end of the axial displacement path in the removal position to the outside or pushes.
  • the positive guidance is effected by a resilient bias which holds the bits in the bit receptacle against the inner wall of the cavity and pivots the bits in the bit receptacle outwardly as soon as the bits exit the cavity and are no longer radially supported by the inner wall of the cavity become.
  • the bit holder has receiving pockets, which are arranged distributed over the circumference of the sleeve and into which the bits are axially inserted.
  • the receiving pockets are pivotally mounted on the sleeve and are pivoted outward under spring tension.
  • the spring tension can be z. B. caused by an O-ring enclosing the pivot lever of the receiving pockets.
  • a cap is arranged, which closes the cavity of the handle body in the storage position and is lockable in this position.
  • a locking element be arranged, which cooperates in the storage position with a arranged at the rear end of the shaft locking element.
  • the locking elements can in particular be a spring-loaded latching hook and a corresponding locking lug.
  • the cap may be locked with locking means at the rear end of the handle body.
  • latching arms are mounted, which engage spring-loaded in the storage position in an outer circumferential groove of the cap and can be pivoted against the spring force from the circumferential groove to release the cap.
  • Other locking options are within the skill of the art.
  • FIG. 1 shows a screwdriver handle with an elongate handle body 10, in the axial front end side of a tool shank 12 is inserted.
  • the tool shaft 12 has at its front free end a chuck 14, in which interchangeable screwdriver bits, so-called bits 16 are used with their drive end.
  • the handle body 10 serves as a magazine for the bits 16 and is closed at its rear axial end side by a cap 18.
  • FIG. 2 shows the screwdriver handle in its removal position. In this removal position, the bits 16 are pushed back out of the handle body 10, so that they can be removed or used.
  • the structure of the screwdriver handle is in the FIGS. 3 to 10 shown in detail.
  • the handle body 10 is a plastic injection molded part, which is manufactured in three injection molding steps.
  • a front end piece 10.1 of the tool shank 12 is cast with its rear end.
  • the end piece 10.1 is followed by an axially elongate operating portion 10.2, which the user takes to handle the screwdriver.
  • the actuating portion 10.2 is preferably provided with an outer coating 10.3, which improves the feel of the handle body 10.
  • an axially elongated cavity 20 is formed, which has the shape of a coaxial with the handle body 10 right circular cylinder.
  • the cavity 20 is closed at its front inner end by the front end piece 10.1 of the handle body 10.
  • the peripheral surface of the cavity 20 is formed by the operating portion 10.2 of the handle body 10.
  • the cavity 20 is open and can be closed by the cap 18.
  • a shaft 22 is arranged, the z. B. is formed as a metal rod.
  • the shaft 22 is cast with its inner front end into the end piece 10.1 of the handle body 10 and aligned axially with the tool shaft 12.
  • the length of the shaft 22 substantially corresponds to the axial length of the cavity 20, so that the rear end of the shaft 22 approximately with the open rear end of the cavity 20 coincides.
  • a sleeve 24 is guided axially displaceably.
  • the sleeve 24 is preferably formed by a metal tube whose inner cross-section substantially corresponds to the outer cross-section of the shank 22.
  • the cap 18 is concentrically mounted on the rear end of the sleeve 24, for. B.
  • the cap 18 is lockable to the handle body 10.
  • a radially projecting latching lug 26 is attached to the free rear end of the shaft 22.
  • a diametrically movable in the transverse direction slide 28 is mounted in the cap 18 .
  • the slide 28 carries on its side facing the cavity 20 inside a latching hook 30 which engages behind the latching lug 26 of the shaft 22 in the storage position to hold the cap 18 to the handle body 10.
  • the slider 28 is acted upon by a helical compression spring 32 in the locking position. If the cap 18 with the sleeve 24 in the in the FIGS.
  • the latching hook 30 slides over the locking lug 26, wherein inlet slopes cause the slide 28 is moved against the force of the helical compression spring 32.
  • the helical compression spring 32 pushes the slider 28 back, so that the latching hook 30 engages behind the latching lug 26.
  • the user pushes the slider 28 against the force of the helical compression spring 32 to the side, so that the latching hook 30 is released in the radial direction of the locking lug 26 and the cap 18 can be detached from the handle body 10.
  • bit holder At the front inner end of the sleeve 24, a bit holder is mounted, which holds the bits 16 on the sleeve 24, so that the bits 16 together with the sleeve 24 into the cavity 20 into the storage position and out of the cavity 20 into the removal position can be moved.
  • the bit holder has a plate 34 which is in FIG. 9 shown as a single item, and a 36 bit recording included in FIG. 10 shown as a single item.
  • the bit holder 36 and the plate 34 are plastic injection molded parts.
  • the bit holder 36 has a socket 38, which sits firmly on the front end of the sleeve 24.
  • the plate 34 has the shape of a flat annular disk on which a coaxial sleeve 40 is formed.
  • the plate 34 is seated with its sleeve 40 fixed to the socket 38 of the bit holder 36, so that the plate 34 is fixedly connected to the front end of the sleeve 24.
  • the outer diameter of the plate 34 substantially corresponds to the inner diameter of the cavity 20, so that the plate 34 is freely displaceable axially in the cavity 20 together with the sleeve 24.
  • a helical compression spring 42 is inserted between the plate 34 and the front end piece 10.1 of the handle body 10.
  • the helical compression spring 42 is centered on a shaft 22 surrounding pin 10 of the end piece. With its rear end, the helical compression spring 42 coaxially surrounds the sleeve 40 of the plate 34 and is supported on the front side of the plate 34.
  • the sleeve 24 is fully inserted with the plate 34 in the cavity 20, whereby the helical compression spring 42 is compressed and tensioned.
  • the sleeve 24 is held against the force of the tensioned helical compression spring 42 in that the cap 18 is locked by means of the slider 28 on the shaft 22. If the locking of the cap 18 is released, then the helical compression spring 42 presses the plate 34 with the sleeve 24 axially in the in the FIGS. 4 and 5 shown removal position.
  • the bit holder 36 has a number of receiving pockets 44 corresponding to the number of bits 16 to be picked up.
  • the receiving pockets 44 are arranged at the same mutual angular distance around the circumference of the bush 38 around.
  • the magazine for receiving six bits 16 is configured so that six receiving pockets 44 are present.
  • the receiving pockets 44 are in the form of axially parallel to the sleeve 38 cylinders which are open at its rear and have an inner cross section corresponding to the cross section of the drive end of the bits 16, z. B. is designed as a hexagon. At the side facing the bushing 38, the jacket of the receiving pockets 44 is open. If a bit 16 is inserted with its drive end in a receiving pocket 44, the receiving pocket 44 surrounds the bit 16 over more than half the circumference, but not completely. In the illustrated embodiment, the receiving pocket 44 encloses the end of the bit 16 at five side surfaces of the hexagonal cross-section. This makes it possible to form the receiving pockets 44 such that the drive end of the inserted bit 16 is held in the receiving pocket 55 under frictional clamping.
  • the receiving pockets 44 have a bottom 46. With this bottom 46, the receiving pockets 44 are each connected to the seated on the sleeve 24 socket 38.
  • the connection between the bottom 46 of the receiving pockets 44 and the sleeve 38 is formed in each case as a film hinge, so that the receiving pockets 44 can be pivoted with their rear open ends of the sleeve 38 and thus of the sleeve 24.
  • a pivot lever 48 is formed in each case at the front thereof. The pivot levers 48 protrude substantially axially from the bottom 46 and are angled outwardly at their free ends. In the mounted state, the bit holder 36 sits on the cavity 20 facing the rear surface of the plate 34.
  • the pivot lever 48 of the bit holder 36 engage axially through correspondingly arranged openings 50 of the plate 34 therethrough.
  • the plate 34 accordingly six apertures 50 in the same mutual angular distance, through which the pivot lever 48 of the receiving pockets 44 pass through.
  • an O-ring 52 is arranged coaxially with the bushes 38 and 40, which wraps around the over the plate 34 protruding pivot lever 48 of all receiving pockets 44.
  • the O-ring 52 pulls due to its elastic bias the free ends of the pivot lever 48 against the sleeve 40. Since the pivot lever 48 are supported in the apertures 50 on the plate 34, the elastic bias of the pivot lever 48 causes a bias of the receiving pockets 44 in Direction of pivoting away from the sleeve 24th
  • the helical compression spring 42 pushes the plate 34 with the bit holder 36 against the open end of the cavity 20, so that the bit holder 36 in the in the FIGS. 5 and 6 shown removal position passes.
  • the receiving pockets 44 of the bit holder 36 come out in this removal position from the open rear end of the cavity 20 so far that their rear ends can be pivoted under the action of the O-ring 52 of the sleeve 24.
  • the receiving pockets 44 are splayed into this removal position at an angle relative to the sleeve 24, which also increases the mutual angular distance of the rear open ends of the receiving pockets 44. In this position, therefore, bits 16 can be conveniently removed from the receiving pockets 44 and bits 16 can be inserted into free receiving pockets 44.
  • the bit holder 36 moves in the cavity to the inside.
  • the receiving pockets 44 with the inserted bits 16 thereby reach the area of the cylindrical Inner wall of the cavity 20.
  • the receiving pockets 44 with the bits 16 are thereby pressed against the elastic force of the O-ring 52 against the sleeve 24 so that they rest axially parallel to the outer circumference of the sleeve 24. If the sleeve 24 is fully inserted into the cavity 20, the cap 18 closes the open end of the cavity 20 and is locked by means of the slider 28 to the latching lug 26 of the shaft 22.
  • the screwdriver handle is thus in the in the FIGS. 3 and 4 shown storage position.
  • FIGS. 11 and 12 is a modified version of the screwdriver shown. This modified version is essentially the same with reference to the Figures 1-10 described embodiment, so that the above description also for the FIGS. 11 and 12 applies. It will be in the FIGS. 11 and 12 Therefore, the same reference numerals used.
  • the cap 18 closing the open rear end of the cavity 20 of the handle body 10 can not be locked on the shaft 22 in the storage position, but on the rear end of the handle body 10.
  • the cap 18 has a peripheral edge adjacent to the rear end of the handle body 10 Circumferential groove 54.
  • two locking levers 56 are arranged diametrically opposite one another.
  • the latching lever 56 extend parallel to the axis and are received in corresponding recesses of the peripheral surface of the handle body 10, so that the outer surface of the latching lever 56 is substantially flush in the outer surface of the handle body 10 inserts.
  • the locking lever 56 are pivotable as two-armed lever in the respective recess stored.
  • For pivotal mounting serve on the two longitudinal sides of the locking lever 56 integrally formed spherical caps, which engage in corresponding spherical bearing shells, which are formed on the longitudinal sides of the recess.
  • the locking lever 56 are simple injection molded parts and are snapped into the bearing shells during assembly with the spherical caps.
  • a latching hook 58 is formed, which is directed against the central axis of the handle body 10.
  • a conical pressure spring 60 is inserted between the directed against the front end of the tool other arm of the two-armed latching lever 56 and the bottom of the recess of the handle body 10.
  • the conical compression spring 60 acts on the two-armed latching lever 56 in the sense that the latching hook 58 is pivoted inwardly in the direction of the central axis of the handle body 10.
  • the sleeve 24 is inserted with the latched onto the rear end of the sleeve 24 cap 18 into the cavity 20 of the handle body 10.
  • the cap 18 sits down with its front peripheral edge on the rear peripheral edge of the handle body 10, wherein outer inlet slopes at the peripheral edge of the cap 18, the locking lever 56 pivot against the force of the conical compression spring 60 to the outside.
  • the latching hooks 58 thereby slide on the outer periphery of the cap 18 and engage under the action of the conical compression spring 60 in the circumferential groove 54 of the cap 18 a.
  • the cap 18 is thereby locked on the rear end of the handle body 10.
  • the user presses with two fingers diametrically on the latching hooks 58 opposite arms of the locking lever 56.
  • the conical compression springs 60 are compressed, the locking lever 56 pivoted against the force of the conical compression springs 60 and the latching hooks 58 from the circumferential groove 54 lifted out.
  • the cap 18 is thereby released and the sleeve 24 with the bit holder can be pushed out of the grip body 10 by the helical compression spring 42.
  • two diametrically arranged locking levers 56 instead of two diametrically arranged locking levers 56, only a single latching lever 56 or even more than two latching levers 56 may be provided. However, two diametrically arranged locking lever 56 have the advantage of comfortable operation by two fingers that engage diametrically on the handle body.
  • cap 18 can also be locked in the manner of a bayonet lock on the rear end of the handle body. The cap 18 is thereby inserted into the open end of the handle body 10 and locked by twisting.

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

Claims (7)

  1. Manche de tournevis comportant un magasin destiné à des accessoires de tournevis (Bits), un corps de manche (10) ayant une extrémité avant et une extrémité arrière, et sur lequel est monté une tige d'outil (12), une cavité cylindrique (20) réalisée coaxialement dans le corps de manche (10), qui est fermée par celui-ci sur sa face frontale interne avant et dont l'extrémité arrière est ouverte au niveau de l'extrémité arrière du corps de manche (10), une tige (22) montée coaxialement dans la cavité (20), dont l'extrémité avant est fixée dans le corps de manche (10), sur la face frontale interne de la cavité (20), et qui s'étend jusqu'à l'extrémité arrière ouverte de la cavité (20), un manchon (24) monté mobile en translation axiale sur la tige (22), un capuchon (18) appliqué à l'extrémité arrière du manchon (24), et un organe de retenue de Bits monté sur la périphérie externe du manchon (24), et dans lequel plusieurs Bits (16) peuvent être logés en étant répartis sur sa périphérie, manche de tournevis dans lequel dans une position de stockage, le manchon (24) est rétracté dans la cavité (20), par translation sur la tige (22), l'organe de retenue de Bits est situé dans la cavité (20), et le capuchon (18) ferme l'extrémité arrière ouverte de la cavité (20), et, dans une position de prélèvement, le manchon (24) est déplacé sur la tige (22) hors de la cavité (20) suffisamment pour que l'organe de retenue de Bits soit libéré pour permettre le prélèvement des Bits (16) et leur mise en place, l'organe de retenue de Bits comportant un logement de réception de Bits (36) appliqué à l'extrémité interne avant du manchon (24), et dans lequel les Bits (16) peuvent être logés par leur extrémité, le logement de réception de Bits (36) comprenant des poches de réception (44) réparties sur sa périphérie dans lesquelles un Bit (16) peut respectivement être inséré axialement,
    caractérisé en ce que
    le logement de réception de Bits (36) maintient les Bits (16) dans la position de stockage coaxialement appliqués sur le manchon (24), et dans la position de prélèvement écarté du manchon (24), par leurs extrémités libres les poches de réception (44) étant maintenues appliquées sur le manchon (24), dans la cavité (20) et, pivotant pour s'écarter du manchon (24), lors de leur sortie de la cavité (20), les poches de réception (44) étant montées pivotantes sur le manchon (24) et étant rappelées élastiquement dans la direction d'écartement par pivotement, et les poches de réception (44) étant montées pivotantes sur le manchon (24) par l'intermédiaire d'une charnière à film et étant rappelées par un élément élastique dans la direction d'écartement par pivotement.
  2. Manche de tournevis conforme à revendication 1,
    caractérisé en ce que
    les logements de réception de Bits (36) sont guidés sous contrainte dans la cavité (20).
  3. Manche de tournevis conforme à revendication 1 ou 2,
    caractérisée en ce que
    les poches de réception (44) comportent un levier pivotant (48) et l'élément élastique est une bague torique (52) qui entoure coaxialement au manchon (24) le levier pivotant (48) de toutes les poches de réception (44).
  4. Manche de tournevis conforme à revendication 3,
    caractérisée en ce que
    les leviers pivotants (48) passent au travers d'ouvertures (50) d'un plateau (34) appliqué sur le manchon (24) et s'appuient sur le plateau (34) dans ces ouvertures (50).
  5. Manche de tournevis conforme à l'une des revendications précédentes,
    caractérisé en ce que
    dans la position de stockage, le capuchon (18) est bloqué de façon amovible à l'extrémité arrière du manche.
  6. Manche de tournevis conforme à la revendication 5,
    caractérisé en ce que
    le capuchon (18) comporte un premier élément de verrouillage (28, 30) qui coopère, dans la position de stockage avec un second élément de verrouillage (26) monté à l'extrémité arrière de la tige (22).
  7. Manche de tournevis conforme à la revendication 5,
    caractérisé en ce que
    le capuchon (18) comporte sur son bord périphérique, des moyens de verrouillage (54) qui, dans la position de stockage, coopèrent avec des moyens de verrouillage (56, 58, 60) qui sont montés à l'extrémité arrière du corps de manche (10).
EP13171232.5A 2012-08-01 2013-06-10 Poignée de tournevis dotée d'un magasin pour embouts de tournevis Active EP2698231B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012107038.5A DE102012107038A1 (de) 2012-08-01 2012-08-01 Schraubendrehergriff mit einem Magazin für Schraubendrehereinsätze

Publications (3)

Publication Number Publication Date
EP2698231A2 EP2698231A2 (fr) 2014-02-19
EP2698231A3 EP2698231A3 (fr) 2016-03-16
EP2698231B1 true EP2698231B1 (fr) 2017-11-29

Family

ID=48577586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13171232.5A Active EP2698231B1 (fr) 2012-08-01 2013-06-10 Poignée de tournevis dotée d'un magasin pour embouts de tournevis

Country Status (4)

Country Link
EP (1) EP2698231B1 (fr)
CN (1) CN103567947B (fr)
DE (1) DE102012107038A1 (fr)
TW (1) TWI532570B (fr)

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DE202017105531U1 (de) 2017-09-13 2018-12-18 Kirchhoff Witte Gmbh & Co. Kg Schraubendrehergriff
CN108044553A (zh) * 2018-01-23 2018-05-18 中国矿业大学(北京) 一种可储存多种改锥头的多用途改锥
CN108533587B (zh) * 2018-05-29 2023-07-07 李凤亮 一种多功能用途的伸缩器
CN109290992A (zh) * 2018-07-27 2019-02-01 广东电网有限责任公司 一种螺丝刀
CN108742473B (zh) * 2018-08-31 2021-11-02 广东德尔玛科技股份有限公司 一种具有扩展手柄功能的除毛球机
WO2020154725A1 (fr) * 2019-01-25 2020-07-30 Gauthier Biomedical, Inc. Mécanisme de fixation d'arbre amélioré pour un outil
DE102019116810A1 (de) * 2019-06-21 2020-12-24 Wera Werkzeuge Gmbh Schraubwerkzeug mit Magazin
CN113799039B (zh) * 2020-06-11 2024-09-20 卓如帝 可存放多批头的螺丝刀
US11648658B2 (en) 2021-03-23 2023-05-16 Ningbo King Mount Co., Ltd. Screwdriver structure
CN113146531A (zh) * 2021-05-10 2021-07-23 厦门南旗佰特精密工具制造有限公司 一种螺丝刀头的弹出式存储单元及螺丝刀头存储结构
CN113295612A (zh) * 2021-06-11 2021-08-24 广东电网有限责任公司 一种电缆口封堵缺陷探测装置
CN114243582B (zh) * 2021-12-01 2023-12-01 广东安诺新材料科技有限公司 一种绝缘层剥除器
IT202100031742A1 (it) * 2021-12-20 2023-06-20 Eberhard Mitterrutzner Dispositivo per custodire almeno un inserto per utensile e supporto per un inserto per utensile

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Also Published As

Publication number Publication date
CN103567947A (zh) 2014-02-12
TW201406504A (zh) 2014-02-16
TWI532570B (zh) 2016-05-11
DE102012107038A1 (de) 2014-02-27
EP2698231A2 (fr) 2014-02-19
EP2698231A3 (fr) 2016-03-16
CN103567947B (zh) 2016-05-04

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