WO1994015755A1 - Porte-outil - Google Patents

Porte-outil Download PDF

Info

Publication number
WO1994015755A1
WO1994015755A1 PCT/JP1993/000026 JP9300026W WO9415755A1 WO 1994015755 A1 WO1994015755 A1 WO 1994015755A1 JP 9300026 W JP9300026 W JP 9300026W WO 9415755 A1 WO9415755 A1 WO 9415755A1
Authority
WO
WIPO (PCT)
Prior art keywords
bit
holder
headed
support
shank
Prior art date
Application number
PCT/JP1993/000026
Other languages
English (en)
Japanese (ja)
Inventor
Kazushige Taguchi
Original Assignee
Vessel Industrial Co., Ltd.
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 Vessel Industrial Co., Ltd. filed Critical Vessel Industrial Co., Ltd.
Priority to PCT/JP1993/000026 priority Critical patent/WO1994015755A1/fr
Publication of WO1994015755A1 publication Critical patent/WO1994015755A1/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
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • 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

Definitions

  • the present invention relates to a bit holder mounted on a manual or electric driver and an air driver.
  • the holder 50 has a shank portion 51 detachably attached to a spindle of the driver, and a holder body 52 provided at a tip end of the shank portion 51.
  • the holder body 52 is provided with a fitting hole 53 for detachably mounting the driver bit 30, and a bit support body 54 is housed in the back of the fitting hole 53.
  • driver bits 30 there are two types of driver bits 30 to be fitted in the fitting holes 53: a single-headed bit 30a shown in FIG. 9A and a double-headed bit 30b shown in FIG.
  • the single-headed bit 30a has a screw engaging head 31 at one end in the axial direction, and the other end is a flat surface.
  • the double-headed bit 30b has screw engagement heads 31 at both ends in the axial direction.
  • the single-headed bit 30a When the single-headed bit 30a is mounted on the bit holder 50, the bottom surface of the single-headed bit 30a and the end face of the bit support 54 come into surface contact, so that the single-headed bit 30a is stably supported. .
  • the tip of the taper portion of the head 31 of the double-headed bit 30b makes a point contact with the end face of the bit support 54. Therefore, the tip of the driver bit is easily damaged, and if the tip of the bit is scratched, the fitting with the screw becomes poor. In particular, if the tip head 31 is missing, There's a problem.
  • An object of the present invention is to provide a bit holder that can stably support both a single-headed bit and a double-headed bit.
  • the bit holder of the present invention has a shank portion detachably mounted on a driver and a tip portion of the shank portion.
  • a holder body provided with a bit fitting hole for detachably mounting a single-headed driver bit or a double-headed driver bit, and a rear end face of the single-headed bit provided at the back of the bit fitting hole
  • a bit support having a tapered hole that fits into the front end of the double-headed bit.
  • the tapered surface of the head is fitted and supported in the taper hole of the bit support, The tip end is stably supported without damaging or breaking the bit support.
  • not only a single-headed bit but also a double-headed bit can be stably supported, and even a double-headed bit with a broken end can be stably supported, and the durability of the bit holder can be improved. It is possible to improve the performance.
  • the shank portion, the holder main body, and the bit support are formed separately from each other.
  • the shank portion, the holder body, and the bit support may be integrally formed.
  • the shank part, holder body and bit support are configured separately. If so, the bit support can be made from magnets.
  • a magnet is interposed between the shank portion and the bit support, the holder body is made of non-magnetic stainless steel, and the bit support is made of magnetic carbon tool steel.
  • the holder body By manufacturing the holder body from stainless steel in this way, magnetic force leakage can be prevented, magnetic holding force of screws and screws or the like can be increased, and the size of the magnet can be reduced.
  • the cross-sectional shapes of the bit fitting hole and the shank are regular hexagons. Further, a peripheral groove is provided on the inner peripheral surface of the entrance portion of the bit fitting hole, and a retaining ring is fitted into the peripheral groove to prevent the bit from coming off.
  • FIG. 1 is a partially broken front view showing a first embodiment of the present invention.
  • FIG. 2 is a left side view of FIG.
  • FIG. 3 is a partially broken front view showing a fitted state of the single-headed bit.
  • FIG. 4 is a partially broken front view showing a fitted state of the double-headed bit.
  • FIG. 5 is a partially broken front view showing a second embodiment of the present invention.
  • FIG. 6 is a partially broken front view showing a third embodiment of the present invention.
  • FIG. 7 is a partially broken front view showing a fourth embodiment of the present invention.
  • FIG. 8 is a longitudinal sectional front view of a bit support which is a main part of a fifth embodiment of the present invention.
  • FIG. 9 (a) is a front view of a single-headed bit
  • FIG. 9 (b) is a front view of a double-headed bit.
  • FIG. 10 is a partially cutaway front view showing a conventional example.
  • a bit holder 1 includes a shank portion 2, a bit holder body 3, a holding ring 4, and a bit holder 1. And support 5.
  • the shank part 2, the bit holder body 3 and the bit support 5 are made of carbon tool steel.
  • the shank portion 2 is formed from a regular hexagonal bar steel material, and has a circumferential groove 6 near its end.
  • the shank part 2 is detachably mounted on a spindle (not shown) such as an electric driver.
  • the holder body 3 is fixed to the tip of the shank 2.
  • the holder body 3 has a cylindrical shape, and a bit fitting hole 7 having a regular hexagonal cross section is formed at the center thereof.
  • the size of the bit fitting hole 7 is such that the single-headed bit 30a and the double-headed bit 30b shown in FIGS.
  • a hole 8 having a circular cross section is provided at the back of the bit fitting hole 7.
  • a circumferential groove 9 is formed on the inner peripheral surface of the entrance portion of the bit fitting hole 7.
  • the holding ring 4 is fitted in a peripheral groove 9 of the bit fitting hole 7.
  • the holding ring 4 is a ring body formed of a spring steel wire, and its diameter is freely expandable and contractable.
  • the wire diameter of the retaining ring 4 is set to be large enough to engage with the locking groove 32 (see FIG. 9) of the driver bit 30a, 30b.
  • the retaining ring 4 in the case of good c 0-ring be 0-ring made of an elastic rubber, a bit engaging groove 32 is not required.
  • the bit support 5 is fitted and fixed in a hole 8 having a circular cross section of the holder body 3. One end of the bit support 5 is in contact with the end of the shank 2.
  • the tip surface of the bit support 5 is a flat surface 10.
  • the flat surface 10 has a tapered hole 11 formed therein.
  • the tapered hole 11 is formed at the same taper angle as the tapered surface of the head portion 31 of the double-headed bit 30b.
  • the tapered surface of the distal end head 31 of the double-headed bit 30b is fitted into the taper hole 11, the head end does not contact the bottom of the taper hole 11.
  • the rear end face of the single-headed bit 30a has a flat surface of the bit support 5.
  • FIG. 5 shows a second embodiment of the present invention, and the shape of the bit holder 1 is the same as that of the first embodiment. However, the difference is that the bit support 5 is made of a permanent magnet.
  • the holder body 3 is made of non-magnetic stainless steel.
  • the shank part 2 is made of magnetic carbon tool steel.
  • a screw (not shown) can be magnetically held at the tip of the bit 30.
  • FIG. 6 shows a third embodiment of the present invention, in which a shank portion 2, a holder body 3, and a bit support 5 are integrally formed by precision construction.
  • the shape of the bit holder 1 is the same as that of the first embodiment.
  • FIG. 7 shows a fourth embodiment of the present invention, in which a magnet 12 is interposed between the bit support 5 and the shank 2.
  • Other configurations are the same as those of the first embodiment.
  • the holder body 3 is made of nonmagnetic stainless steel.
  • the shank portion 2 and the bit support 5 are made of a magnetic carbon tool steel.
  • the magnet 12 is for magnetically holding a screw or a screw (not shown) on the head 31 of the bit 30.
  • This magnet 12 has a columnar shape. It is sandwiched between the shank part 2 and the bit support 5 in the hole 8.
  • the shank portion 2 that contacts the magnet 12 is made of carbon tool steel and the holder body 3 is made of stainless steel, the magnetic force is strong, there is no magnetic force leakage, and there is sufficient magnetic adhesion.
  • FIG. 8 shows a bit support 5 which is a main part of the fifth embodiment of the present invention.
  • a regular hexagonal flange 13 which can be fitted into the bit fitting hole 7 is formed around the open end of the tapered hole 11.
  • the flat surface 10 is widened so that the rear end surface of the single-headed bit 30a can be stably supported.
  • the bit tip head 31 is supported by the tapered hole 11 as in the first embodiment.
  • the present invention is not limited to the above embodiment.
  • a bit locking ball may be provided and the pole may be biased by a holding sleeve or the like.
  • the present invention can be applied.
  • the tapered hole 11 of the bit support 5 may be a through hole without a bottom ⁇ note that the preferred embodiments described herein are illustrative and not restrictive. The scope of the invention is defined by the appended claims, and all modifications that fall within the meaning of those claims are included in the present invention. 0
  • the present invention is used for a bit holder mounted on the tip of a screw driver.

Landscapes

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

Abstract

Porte-outil (1) pouvant être utilisé pour deux outils (30), un outil (30a) à tête unique et un outil (30b) à double tête. Le porte-outil (1) comporte une tige (2) fixée de manière amovible au tournevis, un corps porteur (3) situé au niveau de la partie terminale avant de la tige (2) et présentant un alésage (7) dans lequel l'outil (30a) à tête unique ou l'outil (30b) à double tête est monté de manière amovible, une surface plane (10) située dans la partie intérieure de l'alésage (7) recevant l'outil, et au contact de la surface terminale arrière de l'outil (30) à tête unique, ainsi qu'un corps de support (5) présentant un alésage conique (11) adapté pour être monté sur une partie (31) de tête avant de l'outil (30b) à double tête.
PCT/JP1993/000026 1993-01-11 1993-01-11 Porte-outil WO1994015755A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1993/000026 WO1994015755A1 (fr) 1993-01-11 1993-01-11 Porte-outil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1993/000026 WO1994015755A1 (fr) 1993-01-11 1993-01-11 Porte-outil

Publications (1)

Publication Number Publication Date
WO1994015755A1 true WO1994015755A1 (fr) 1994-07-21

Family

ID=14070071

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1993/000026 WO1994015755A1 (fr) 1993-01-11 1993-01-11 Porte-outil

Country Status (1)

Country Link
WO (1) WO1994015755A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998051450A2 (fr) * 1997-05-10 1998-11-19 Zierpka Eva Maria Systeme d'outil accouplable a l'arbre d'entrainement d'un tour
WO2012130236A1 (fr) * 2011-03-29 2012-10-04 Føvling Træbyg Aps Adaptateur d'outil motorisé et support de foret réversible adapté à un adaptateur d'outil motorisé
CN102896608A (zh) * 2012-10-25 2013-01-30 富美科技集团有限公司 一种电动螺丝刀批头结构
CN103419176A (zh) * 2012-05-22 2013-12-04 昆山义成工具有限公司 起子头夹持装置
US9849570B2 (en) 2008-11-07 2017-12-26 Milwaukee Electric Tool Corporation Tool bit
US10022845B2 (en) 2014-01-16 2018-07-17 Milwaukee Electric Tool Corporation Tool bit
USD921468S1 (en) 2018-08-10 2021-06-08 Milwaukee Electric Tool Corporation Driver bit
CN113459026A (zh) * 2021-07-02 2021-10-01 广东电网有限责任公司 一种拆装装置
US11638987B2 (en) 2017-12-01 2023-05-02 Milwaukee Electric Tool Corporation Wear resistant tool bit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS453039Y1 (fr) * 1966-04-23 1970-02-09
JPS51124300U (fr) * 1975-04-02 1976-10-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS453039Y1 (fr) * 1966-04-23 1970-02-09
JPS51124300U (fr) * 1975-04-02 1976-10-07

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998051450A3 (fr) * 1997-05-10 1999-05-27 Zierpka Eva Maria Systeme d'outil accouplable a l'arbre d'entrainement d'un tour
US6302408B1 (en) 1997-05-10 2001-10-16 Eva-Maria Zierpka Tool system that can be coupled to a lathe drive shaft
WO1998051450A2 (fr) * 1997-05-10 1998-11-19 Zierpka Eva Maria Systeme d'outil accouplable a l'arbre d'entrainement d'un tour
US10065294B2 (en) 2008-11-07 2018-09-04 Milwaukee Electric Tool Corporation Tool bit
US9849570B2 (en) 2008-11-07 2017-12-26 Milwaukee Electric Tool Corporation Tool bit
US11407090B2 (en) 2008-11-07 2022-08-09 Milwaukee Electric Tool Corporation Tool bit
WO2012130236A1 (fr) * 2011-03-29 2012-10-04 Føvling Træbyg Aps Adaptateur d'outil motorisé et support de foret réversible adapté à un adaptateur d'outil motorisé
CN103459092A (zh) * 2011-03-29 2013-12-18 佛灵特拉白格公司 动力工具接合器及用于动力工具接合器的可反转工具头架
CN103459092B (zh) * 2011-03-29 2016-01-13 佛灵特拉白格公司 动力工具接合器及用于动力工具接合器的可反转工具头架
US9604350B2 (en) 2011-03-29 2017-03-28 Fovling Traebyg Aps Power tool adaptor and a reversible tool bit holder adaptor for a power tool adaptor
CN103419176A (zh) * 2012-05-22 2013-12-04 昆山义成工具有限公司 起子头夹持装置
CN102896608A (zh) * 2012-10-25 2013-01-30 富美科技集团有限公司 一种电动螺丝刀批头结构
US10022845B2 (en) 2014-01-16 2018-07-17 Milwaukee Electric Tool Corporation Tool bit
US11638987B2 (en) 2017-12-01 2023-05-02 Milwaukee Electric Tool Corporation Wear resistant tool bit
US11958168B2 (en) 2017-12-01 2024-04-16 Milwaukee Electric Tool Corporation Wear resistant tool bit
USD921468S1 (en) 2018-08-10 2021-06-08 Milwaukee Electric Tool Corporation Driver bit
USD955843S1 (en) 2018-08-10 2022-06-28 Milwaukee Electric Tool Corporation Driver bit
CN113459026A (zh) * 2021-07-02 2021-10-01 广东电网有限责任公司 一种拆装装置
CN113459026B (zh) * 2021-07-02 2023-02-03 广东电网有限责任公司 一种拆装装置

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