WO1992015428A1 - Tournevis equipe d'arret reglable - Google Patents

Tournevis equipe d'arret reglable Download PDF

Info

Publication number
WO1992015428A1
WO1992015428A1 PCT/SE1992/000141 SE9200141W WO9215428A1 WO 1992015428 A1 WO1992015428 A1 WO 1992015428A1 SE 9200141 W SE9200141 W SE 9200141W WO 9215428 A1 WO9215428 A1 WO 9215428A1
Authority
WO
WIPO (PCT)
Prior art keywords
screwdriver
stop member
hand tool
holder
threads
Prior art date
Application number
PCT/SE1992/000141
Other languages
English (en)
Inventor
Kaj Mickos
Original Assignee
Kaj Mickos
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 Kaj Mickos filed Critical Kaj Mickos
Publication of WO1992015428A1 publication Critical patent/WO1992015428A1/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
    • B25B23/0064—Means for adjusting screwing depth

Definitions

  • the present invention relates to a device of the type stated in the introduction of the following claim 1.
  • a device of this type is known per se, whose stop member or dog comprises a tubular extension of the ring-shaped stop member holder affixed to the screwdriver hand tool.
  • the screwdriver or screwdriver bit will by that be well covered practically throughout its entire length, and the free end of the stop member can be arranged to enclose the screwdriver with a small space, which latter is important for the sake of availability.
  • power-drills can be provided with stop members. These usually are of the type with an arm mounted on the side of the power-drill that is axially adjustable and lockable at a fairly large distance from the axis of the drill. Such a design is for obvious reasons not usable together with a screwdriver hand tool.
  • the object of the invention is to bring about a device of the kind stated in the introduction, where the mentioned inconveniences are eliminated in a particularly simple way. This has been achieved in accordance with the invention with an arrangement having the characterizing features set forth in the following claim.
  • the screwdriver hand tool can in most cases be held so, that the forwardly pointing finger of the screwdriver hand tool does not block the view of the tip of the screwdriver or the groove in the screw head. Furthermore is it easy to reach to screw in narrow spaces, since the forwar pointing finger of the stop member needs very little space. The perhaps most important advantage is, however, that a screw that has got askew can be unscrewed without removing the stop member.
  • the screwdriver hand tool can, as a matter of fact, be leaned, despite the stop member, so that the tip of the screwdriver reaches enough into the groove of the screw head so that the screwdriver will be displaced the distance required to bring the motor drive to start.
  • the stop member is affixed on a rotateable sleeve in the front portion of the screwdriver hand tool, as stated in claim 2, whereby the finger of the stop member can be turned to desired angular position.
  • the device can be designed according to what is stated in claim 3, so that the depth-adjustment can not be altered unintentionally when turning the casing.
  • Figure 1 is a longitudinal section
  • Figure 2 is a planview from above showing the front portion of the screwdriver hand tool with the device according to the invention while screwing down in a narrow tin groove
  • Figure 3 is a planview from ahead with the position of the groove marked with dot-dash lines.
  • the hand-tool shown on the drawing is a screwdriver device of the usual kind, that has a built-in clutch, that makes the screwdriver 1 turn or rotate when being displaced axially a few ⁇ _ ⁇ when pushed against the groove of a screw head 3.
  • On the front portion of the screwdriver hand tool which is cylindrical, an easily removeable sleeve 4 is attached so, that it with some friction can be turned around.
  • an inner threading 5 is arranged in an axial through bore, in which a ring-shaped holder 6 of a stop member designed as a forward, from the holder 6.
  • pointing finger 7 that is thre to a desired depth through a threading 5' on the outside of the stop membe holder 6.
  • the sleeve 4 is at least one radial hole 8 arranged, in which a ball 9 is enclosed elastically pushed inwards by a rubber ring 10 arrang in a peripheral groove on the outside of the sleeve 4.
  • Four axial grooves are arranged with 90° partition in the threadings 5, so that the stop memb holder 6, when turned in relation to the sleeve 4 will present four distin positions per revolution, corresponding to four axial positions of the finger 7 per revolution.
  • the sleeve 4 and there also the stop member holder 6 with the finger 7 are freely turnable withou altering the depth-adjustment of the finger 7.
  • the finger 7 only obtains optional positions around the screwdriver 2.
  • the tip of the screwdriver 2 and the finger 7 of the stop member can be inserted into a narrow groove 12 in a tin profile 13 which is an essential advantage with the device according to the invention. Due to the possibility to turn the stop member holder 6 with the finger 7 around the screwdriver 2 to desired position is it not necessary to turn the entire screwdriver hand tool 1 to the correspond position, which can be an uncomfortable working position.
  • the particular advantage with the device according to the invention namely the possibility to be able to unscrew a screw that has got askew with the stop member remaining in position, depends on the characteristic of the stop member, that it permits the screwdriver hand tool to be lent so that the tip of the screwdriver reaches sufficiently outside the tip of the finger 7 so the screwdriver 2 will be pushed back the distance requ to make the screwdriver hand tool start rotating the screwdriver when push into the groove of the screw head 3.
  • the screwdriver 2 then makes an angle with the surface marked with the dot-dash line 14, by which the increased range for the screwdriver 2 is clearly shown compared with when the screwdriver is directed perpendicular to the surface.

Abstract

L'invention concerne une butée ou un arrêt (7) équipant un tournevis à main (1) à lame motorisée (2). Les tournevis à main connus présentent un certain nombre d'inconvénients, par exemple la difficulté de bien viser la lame du tournevis, la vue étant obstruée par la butée; la difficulté de changer de lame ou d'embouts, ce qui requiert la dépose momentanée de la butée; la difficulté d'accès de la vis dans les espaces réduits où la butée ne passe pas, et surtout la difficulté de dévisser une vis qui s'est mise de travers, puisque l'embrayage automatique du tournevis à main ne peut s'engager dans l'entraînement du tournevis à main si la lame n'a pas été poussée un peu plus loin que dans le cas d'une vis vissée à fond. Autrement dit, la lame doit être enlevée. Ces inconvénients sont surmontés dans le dispositif proposé par l'invention grâce à la présence de la butée (7) qui présente un support annulaire (6) muni de filetages (5) ainsi qu'un doigt dirigé vers l'avant (7) et placé parallèlement à la lame (2) et à faible distance de celle-ci, sa pointe étant située dans la position souhaitée par rapport à l'extrémité de la lame.
PCT/SE1992/000141 1991-03-08 1992-03-06 Tournevis equipe d'arret reglable WO1992015428A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9100697A SE469014B (sv) 1991-03-08 1991-03-08 Skruvdragare med djupanslag
SE9100697-3 1991-03-08

Publications (1)

Publication Number Publication Date
WO1992015428A1 true WO1992015428A1 (fr) 1992-09-17

Family

ID=20382103

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1992/000141 WO1992015428A1 (fr) 1991-03-08 1992-03-06 Tournevis equipe d'arret reglable

Country Status (2)

Country Link
SE (1) SE469014B (fr)
WO (1) WO1992015428A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5380132A (en) * 1993-09-10 1995-01-10 Black & Decker Inc. Depth adjusting system for a power tool
US5509330A (en) * 1995-03-23 1996-04-23 Nick; Edward V. Fastener support apparatus
US6912932B2 (en) 2001-06-28 2005-07-05 Porter-Cable/Delta Depth adjusting system for a screw gun

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501189B2 (de) * 1974-01-15 1978-02-23 Atlas Copco Ab, Nacka (Schweden) Drehschrauber, insbesondere fuer schneidschrauben
DE2549153B2 (de) * 1975-11-03 1978-05-03 Altenloh, Brinck & Co, 5828 Ennepetal Vorsatzgerät für Handbohrmaschinen zum Eindrehen von Schrauben
EP0155745A2 (fr) * 1984-03-15 1985-09-25 Black & Decker Inc. Dispositif d'ajustage de la profondeur pour un outil
US4592257A (en) * 1982-11-19 1986-06-03 Hilti Aktiengesellschaft Hand-held screw driving device with adjustable depth stop
DE3141248C2 (de) * 1981-10-15 1986-09-18 Muro Kinzoku Kogyo Co., Ltd., Tokio/Tokyo Einrichtung zum Zuführen von Schrauben für einen motorbetriebenen Schraubenzieher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501189B2 (de) * 1974-01-15 1978-02-23 Atlas Copco Ab, Nacka (Schweden) Drehschrauber, insbesondere fuer schneidschrauben
DE2549153B2 (de) * 1975-11-03 1978-05-03 Altenloh, Brinck & Co, 5828 Ennepetal Vorsatzgerät für Handbohrmaschinen zum Eindrehen von Schrauben
DE3141248C2 (de) * 1981-10-15 1986-09-18 Muro Kinzoku Kogyo Co., Ltd., Tokio/Tokyo Einrichtung zum Zuführen von Schrauben für einen motorbetriebenen Schraubenzieher
US4592257A (en) * 1982-11-19 1986-06-03 Hilti Aktiengesellschaft Hand-held screw driving device with adjustable depth stop
EP0155745A2 (fr) * 1984-03-15 1985-09-25 Black & Decker Inc. Dispositif d'ajustage de la profondeur pour un outil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5380132A (en) * 1993-09-10 1995-01-10 Black & Decker Inc. Depth adjusting system for a power tool
US5509330A (en) * 1995-03-23 1996-04-23 Nick; Edward V. Fastener support apparatus
US6912932B2 (en) 2001-06-28 2005-07-05 Porter-Cable/Delta Depth adjusting system for a screw gun

Also Published As

Publication number Publication date
SE9100697D0 (sv) 1991-03-08
SE469014B (sv) 1993-05-03
SE9100697L (sv) 1992-09-09

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