EP0109666B1 - Handgerät mit verstellbarem Tiefenanschlag - Google Patents

Handgerät mit verstellbarem Tiefenanschlag Download PDF

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Publication number
EP0109666B1
EP0109666B1 EP83111513A EP83111513A EP0109666B1 EP 0109666 B1 EP0109666 B1 EP 0109666B1 EP 83111513 A EP83111513 A EP 83111513A EP 83111513 A EP83111513 A EP 83111513A EP 0109666 B1 EP0109666 B1 EP 0109666B1
Authority
EP
European Patent Office
Prior art keywords
housing
depth stop
actuating sleeve
tool according
sleeve
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.)
Expired
Application number
EP83111513A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0109666A1 (de
Inventor
Paul Duerr
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 AT83111513T priority Critical patent/ATE21643T1/de
Publication of EP0109666A1 publication Critical patent/EP0109666A1/de
Application granted granted Critical
Publication of EP0109666B1 publication Critical patent/EP0109666B1/de
Expired 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/892—Tool or Tool with support with work-engaging structure detachable from cutting edge
    • Y10T408/8925—Depth-limiting member

Definitions

  • the invention relates to a hand-held device, in particular for driving in screws, with a housing and a depth stop that can be adjusted relative to it, the depth stop being connected to the housing via an adjusting thread and for adjusting an actuating sleeve which is connected to the depth stop and is axially displaceable for this purpose can be fixed in a rotationally locking manner on the housing.
  • Such a depth stop generally consists of a sleeve which comprises an insert which engages the screw to be driven. It is known to match the insert and the depth stop in such a way that the driving-in process is completed when the depth stop stands up on the receiving base in which the screw is to be screwed in. This is achieved by the fact that coupling elements on the device side interrupt the introduction of torque to the insert as soon as the depth stop stands up sufficiently on the mounting base, which ultimately means that the position of the depth stop has a direct influence on the driving depth of the screw.
  • Adjustable depth stops are known, depending on the application and the screw used, the driving depth has to be adjusted to the respective conditions. Since the insert delivering the torque to the screw to be driven is a part that is fixed in its position on the device side, it is common to compare the depth stop with this insert, i. H. also in relation to the device.
  • Such an adjustable depth stop is known for example from German patent 2220792.
  • This known depth stop consists of a sleeve which is connected to the housing via an adjusting thread. For the axial adjustment of the depth stop, it can therefore only be rotated, which takes place via an actuating sleeve which is connected to it in a rotationally locking manner and can be displaced axially thereto.
  • the actuating sleeve can be fixed in a rotationally locking manner on the housing.
  • a spring is provided which drives the actuating sleeve against the end face of the housing, so that cams and recesses provided for this purpose work together.
  • grooves are provided on the outside for the rotationally locking connection between the actuating sleeve and the depth stop, which allows axial displacement, which grooves must have a certain dimensional accuracy to ensure a sufficiently precise adjustment.
  • these parts since these parts in particular are exposed to extremely high levels of contamination, the functionality is also questioned from this point of view.
  • the invention has for its object to provide a handheld device of the type in question, which has both a failure-prone and easy-to-use depth stop, which is secured against unintentional adjustment despite possible fine adjustment.
  • this object is achieved in that a spring washer on the housing and a shoulder cooperating with the spring washer on the actuating sleeve as latching elements for securing the actuating sleeve both in the rotationally fixed position relative to the housing and in the axially offset position which is freely rotatable relative to the housing are provided.
  • the depth stop is rotated relative to the housing by means of the actuating sleeve.
  • the actuating sleeve is axially displaceable with respect to the depth stop, whereby, as in the known solution, it is designed in such a way that, when moving away from the housing, rotation with the depth stop is possible and a rotationally locking fixing is achieved when displaced towards the housing.
  • the latching elements proposed according to the invention enable the actuating sleeve to be securely fixed on the one hand in the position permitting rotation and on the other hand in the position fixed to the housing in a rotationally locking manner. After the latching elements can only be overcome with a certain amount of effort by the operator, it is ensured on the one hand that the fixing on the housing is not inadvertently released and the depth stop is thereby adjusted. On the other hand, it is also ensured that after the actuating sleeve has been axially displaced away from the housing, the adjustment of the depth stop can only be carried out unhindered simply by twisting.
  • locking elements such as spring-loaded balls, resilient fingers or the like.
  • a spring ring and a cooperating shoulder as locking elements, where it is advisable to hold the spring ring on an extension on the housing side and the actuating sleeve on the inside with a corresponding, radially complete or only partially circumferential shoulder.
  • a securing bolt is provided on the actuating sleeve, which can take over both of the functions required by the actuating sleeve. These two functions consist, on the one hand, of ensuring the rotationally fixed fixing on the housing and, on the other hand, of creating the rotationally locking connection, which allows axial displacement, with the depth stop.
  • Such a securing bolt can be fastened inside the actuating sleeve. As a result, it is fully protected against mechanical damage and dirt and can fully perform the functions mentioned.
  • the securing bolt is preferably fastened in the interior of the actuating sleeve to a projection in such a way that the two ends remain free.
  • An actuating sleeve which is preferably made of plastic, can be, for example, a metal pin which is firmly injected into a cam in the interior of the actuating sleeve.
  • the one advantageously the free end facing the housing, can serve for the rotationally fixed fixing of the actuating sleeve with the housing.
  • recesses in the form of slots, holes or the like can be provided on the housing, into which the securing bolt can be inserted. Thanks to the interaction of the safety bolt with the recesses on the housing, dimensioning and arrangement is possible, which allows sufficient fine adjustment of the depth stop.
  • the recesses can be provided directly on the housing, or a separate element in the form of a locking ring with the recesses arranged thereon can be fastened to the housing or on a related extension in the sense of simple manufacture.
  • the other, opposite, free end of the securing bolt can serve for the rotationally locking connection, but allowing axial displacement, with the depth stop.
  • this free end of the securing bolt engages in a bore provided on the depth stop in every position of the actuating sleeve. A sufficient depth of this hole can be used to make full use of the full adjustment path from the depth stop.
  • a turnstile which interrupts the rotation of the depth stop together with the actuating sleeve is provided.
  • Such a turnstile expediently consists of a housing-side extension, which interacts with a cam on the depth stop as soon as the depth stop is correspondingly adjustable towards the housing.
  • FIG. 1 shows a view and overall representation of a hand-held device with housing 1 that serves to drive in screws.
  • An actuating switch 2 and a supply cable 3 are arranged on the handle side on the handle, admirably a senor, and a supply cable 3 are arranged on the handle side on the handle, admirably a senor, and a supply cable 3 are arranged on the handle side on the handle, admirably a actuating switch 2 and a supply cable 3 are arranged on the handle side on the handle, chromat rend at the front of the housing 1, a total of 4 designated depth stop, which is surrounded by an overall designated 5 actuating sleeve.
  • the depth stop 4 is connected to an extension 1a of the housing 1 via an adjusting thread 6.
  • the actuating sleeve 5 is connected to the depth stop 4 in a rotationally locking but axially displaceable manner.
  • the connection of these parts is provided by a securing bolt, designated overall by 7, which is rigidly fastened in the actuating sleeve 5 by means of a projection 5a.
  • one end 7a of the securing bolt 7 engages in a bore 4c of the depth stop 4, this bore 4c being dimensioned such that the securing bolt 7 can move freely therein.
  • a locking ring On the extension 1a of the housing 1, a locking ring, designated overall by 8, is also rigidly attached.
  • This locking ring 8 which is shown in FIG. 4 for itself, has recesses 8a on the circumference, it being possible for twelve recesses 8a, for example, to be distributed over the circumference of the locking ring 8 for a sufficient fine adjustment of the depth stop 4.
  • These recesses 8a are dimensioned such that the second free end 7b of the securing bolt 7 can protrude, so that overall the actuating sleeve 5 can be fixed to the housing 1 in a rotationally locking manner.
  • the arrangement of the recesses 8a on the locking ring 8 creates an economical solution compared to recesses, which can alternatively also be arranged directly in the extension 1a of the housing 1.
  • a spring ring 9 is provided on the extension 1a of the housing 1. This spring ring 9 interacts with a shoulder 5b arranged on the inside on the actuating sleeve 5.
  • an insert 10 which can also be seen in the figures and which is designed, for example, to accommodate Phillips screws.
  • This insert 10 is fastened to a shaft 11 which can be connected to the drive unit of the device via a claw coupling 12, which is also known per se, while overcoming the force of a spring (not shown).
  • a torque is transmitted to the insert 10 as long as the depth stop 4 does not yet stand up on the receiving base into which the screw is to be driven.
  • the insert 10 can move relative to the depth stop 4 in such a way that, thanks to the coupling 12, the connection to the drive unit is interrupted and thus the introduction of torque to the insert 10 is ended.
  • the depth stop 4 is formed in two parts and consists of a stop sleeve 4a and a threaded bush 4b.
  • a bayonet catch 4d known per se, is used to connect these parts, which is indicated in the drawings.
  • the depth stop 4 is adjusted in that the actuating sleeve 5 is brought into the position which can be freely rotated relative to the housing and which can be seen in FIG. 3. In this position of the actuating sleeve 5, the depth stop 4 is also rotated by rotating the latter due to the securing bolt 7. Thanks to the adjusting thread 6, the depth stop experiences a relative displacement both with respect to the housing 1 and with respect to the actuating sleeve 5.
  • the actuating sleeve 5 When the desired position of the depth stop 4 has been reached, the actuating sleeve 5 is pulled against the housing 1, as a result of which the end 7b of the securing bolt 7 passes into a recess 8a of the locking ring 8, which leads to a rotationally locking fixing of both the actuating sleeve 5 and the depth stop 4 relative to the housing 1.
  • This position of the actuating sleeve 5 can be seen from FIG. 2, which also clearly shows that the shoulder 5b of the actuating sleeve 5 has now jumped over the spring ring 9, so that the actuating sleeve 5 is axially secured in its position.
  • a turnstile which consists of a cam 4e arranged on the depth stop 4, which, when the depth stop 4 is correspondingly far away from Has moved housing 1 out, strikes an extension 8b of the locking sleeve 8. Since the locking sleeve 8 is rigidly connected to the housing 1, the extension 8b is also a fixed stop on the housing side. Since the two parts, i.e. H. Cam 4e and extension 8b meet purely radially, no jamming, for example caused by the pitch of the adjusting thread 6, can occur.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Manipulator (AREA)
  • Flexible Shafts (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Surgical Instruments (AREA)
EP83111513A 1982-11-19 1983-11-17 Handgerät mit verstellbarem Tiefenanschlag Expired EP0109666B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83111513T ATE21643T1 (de) 1982-11-19 1983-11-17 Handgeraet mit verstellbarem tiefenanschlag.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3242862 1982-11-19
DE19823242862 DE3242862A1 (de) 1982-11-19 1982-11-19 Handgeraet mit verstellbarem tiefenanschlag

Publications (2)

Publication Number Publication Date
EP0109666A1 EP0109666A1 (de) 1984-05-30
EP0109666B1 true EP0109666B1 (de) 1986-08-27

Family

ID=6178529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111513A Expired EP0109666B1 (de) 1982-11-19 1983-11-17 Handgerät mit verstellbarem Tiefenanschlag

Country Status (5)

Country Link
US (1) US4592257A (enrdf_load_stackoverflow)
EP (1) EP0109666B1 (enrdf_load_stackoverflow)
AT (1) ATE21643T1 (enrdf_load_stackoverflow)
CA (1) CA1224070A (enrdf_load_stackoverflow)
DE (1) DE3242862A1 (enrdf_load_stackoverflow)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647260A (en) * 1984-03-15 1987-03-03 Black & Decker Inc. Depth-adjusting system for a power tool
DE3432382A1 (de) * 1984-09-03 1986-03-13 Hilti Ag, Schaan Motorisch betriebenes schraubgeraet
US4752158A (en) * 1985-12-02 1988-06-21 Rockwell International Corporation Swivel mounted sleeve with adjustable stand off for depth controlled tool
US4900201A (en) * 1989-03-06 1990-02-13 International Business Machines Corp. Drill spindle depth adjustment
DE4133483A1 (de) * 1990-10-09 1992-07-02 Michael Babacek Hubbegrenzungseinrichtung fuer den klingenhub eines automatischen setzwerkzeuges
SE469014B (sv) * 1991-03-08 1993-05-03 Kaj Mickos Skruvdragare med djupanslag
US5380132A (en) * 1993-09-10 1995-01-10 Black & Decker Inc. Depth adjusting system for a power tool
US5524512A (en) * 1994-03-11 1996-06-11 Ryobi Motor Products Corp. Drywall screwdriver depth adjustment
US5601387A (en) * 1995-06-07 1997-02-11 Black & Decker Inc. Depth adjusting system for a power tool
DE19857563A1 (de) * 1998-12-14 2000-06-15 Hilti Ag Handgeführtes Schraubgerät
US6382890B1 (en) * 1999-09-01 2002-05-07 Novator Ab Hand tool apparatus for orbital drilling
US6758116B2 (en) 2001-06-28 2004-07-06 Porter-Cable/Delta Depth adjusting system for a screw gun
US7134367B2 (en) 2002-12-09 2006-11-14 Milwaukee Electric Tool Corporation Fastener feeding system
US7131974B2 (en) * 2003-10-14 2006-11-07 Keyer Thomas R Surgical drill guide
US7210881B2 (en) * 2003-12-30 2007-05-01 Greenberg Alex M Sleeved stop for a drill bit
DE102004053250A1 (de) * 2004-11-04 2006-05-11 Hilti Ag Tiefenanschlag-Anordnung
DE102005062885B4 (de) * 2005-12-29 2020-09-03 Robert Bosch Gmbh Tiefenanschlag
DE102005063016A1 (de) * 2005-12-30 2007-07-05 Robert Bosch Gmbh Handwerkzeugmaschine mit Drehgriffverstelleinrichtung
TW200732103A (en) * 2006-02-24 2007-09-01 Basso Ind Corp Striking nail depth control structure of palm hammer
US20120059385A1 (en) 2010-07-07 2012-03-08 Orthohelix Surgical Designs, Inc. Variable angle depth limited fastener driver and variable angle fixation system for use in orthopedic plates
US9488006B2 (en) 2014-02-14 2016-11-08 Baker Hughes Incorporated Downhole depth measurement using tilted ribs

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790471A (en) * 1955-07-19 1957-04-30 Clinton L Graybill Power driven screw driver
US2940488A (en) * 1959-08-17 1960-06-14 Black & Decker Mfg Co Depth gauge for power-operated screwdriver, nut-runner, and the like
US3460408A (en) * 1967-03-14 1969-08-12 Millers Falls Co Depth gauge
US3454059A (en) * 1967-10-02 1969-07-08 Black & Decker Mfg Co Attaching and adjusting construction for depth locating accessory
DE1981300U (de) * 1967-10-06 1968-03-14 Fein C & E Verstellbarer tiefenanschlag fuer kraftbetaetigte handschrauber.
FR2124710A5 (enrdf_load_stackoverflow) * 1971-03-02 1972-09-22 Bogle Kg Wilhelm
US3712352A (en) * 1971-05-06 1973-01-23 Milwaukee Electric Tool Corp Depth adjusters and interchangeable locators for screwdrivers
SE377900B (enrdf_load_stackoverflow) * 1974-01-15 1975-08-04 Atlas Copco Ab
DE2621932C3 (de) * 1976-05-17 1979-02-01 Kajetan 8170 Bad Toelz Leitner Futter zum Spannen von Kopf- und Stiftschrauben beim Einschraubvorgang
DE3007750A1 (de) * 1980-02-29 1981-09-17 Wilhelm Bögle KG, 7410 Reutlingen Einschraubvorrichtung als vorsatzgeraet fuer motorgetriebene bohrmaschinen

Also Published As

Publication number Publication date
DE3242862A1 (de) 1984-05-24
US4592257A (en) 1986-06-03
EP0109666A1 (de) 1984-05-30
CA1224070A (en) 1987-07-14
ATE21643T1 (de) 1986-09-15
DE3242862C2 (enrdf_load_stackoverflow) 1992-03-19

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