US3710832A - Locators for drywall fasteners - Google Patents

Locators for drywall fasteners Download PDF

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Publication number
US3710832A
US3710832A US00170061A US3710832DA US3710832A US 3710832 A US3710832 A US 3710832A US 00170061 A US00170061 A US 00170061A US 3710832D A US3710832D A US 3710832DA US 3710832 A US3710832 A US 3710832A
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US
United States
Prior art keywords
bore
bit holder
locator
nose
locator 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 - Lifetime
Application number
US00170061A
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English (en)
Inventor
G Lafferty
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.)
Milwaukee Electric Tool Corp
Original Assignee
Milwaukee Electric Tool Corp
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 Milwaukee Electric Tool Corp filed Critical Milwaukee Electric Tool Corp
Application granted granted Critical
Publication of US3710832A publication Critical patent/US3710832A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25B23/0064—Means for adjusting screwing depth

Definitions

  • ABSTRACT 4 Claims, 4 Drawing Figures LOCATORS FOR DRYWALL FASTENERS BACKGROUND OF THE INVENTION 1.
  • This invention relates to an improved depth adjuster for electric powered hand tools of the type designed to apply self tapping drywall fasteners. During the driving of such fasteners through the drywall panel a powder or dust of gypsum or'otherv abrasive material is dislodged and falls or works its way into the nose of the locator sleeve and then into other parts of the driving mechanisms and eventually fouls such mechanisms.
  • the metal locator sleeve of this prior art has a nose with four circular shaped air vents. The sides of oppositely placed vents are parallel and non-sloping. There are no sharp tips to peel off powder from the bit holder.
  • An O-ring seated on the bore of the metal locator sleeve forms a sealing bearing between the bit holder and the bore of the sleeve. This seal gives rise to undue frictional losses and has a short useful life.
  • the metal of such locator sleeve affected the magnetic field of the usual magnetic bit holder so thatzits ability to hold a fastener in starting position on the bit is materially weakened.
  • FIG. 1 is a fragmentary view in longitudinal axial cross -section of an electric poweredhand tool having applied to it a depth adjuster including a locator sleeve embodying the present invention with the bit holder and bit shown in full;
  • FIG. 2 is a sectional view taken on line 22 of FIG.
  • FIG. 3 is an enlarged fragmentary sectional view taken on the line 22 of FIG. 1;
  • FIG. 4 is a fragmentary view in side elevation of the locator sleeve of FIG. 1.
  • This drill has a clutch gear 10 mounted within its gear housing 11. This clutch gear receives motor driving torque through its geared teeth and transmits it to the clutch teeth.
  • a clutch chuck 12 mounted within an extending neck 13 of the gear housing is a clutch chuck 12 which is carried in a roller bearing 14.
  • This clutch chuck has a standard non-circular bore for receiving the shank of a bit holder 16.
  • the bit holder 16 may be magnetic or non-magnetic as required.
  • bit holder 16 shown is preferably magnetic so that it will hold a metal screw I8 on the tip of the bit 20 for ease in starting the driving of the screw.
  • a spring which urges the clutch chuck l2 forwardly to the nondriving position shown in FIG. 1.
  • the bit holder 16 and the bit 20 forces the clutch chuck l2 rearwardly into driving position.
  • the feature of this invention is a specialized locator sleeve which is particularly designed for driving fasteners into a drywall panel. It is well-known that the application of fasteners to drywall produces a dust or powder of abrasive material which will enter the locator assembly and the driving mechanism and in due time foul up such mechanism.
  • the locator sleeve 22 is shaped as shown in the figures and is defined as a drywall sleeve.
  • the mechanical elements by which it is retained in operative position in the locator assembly are identical with those of locator sleeve 32 of the aforesaid application.
  • it hasan elongated frusto conical nose 24 and a central bore 26.
  • the locator sleeve is a molded part formed by injector molding of a plastic known in the trade as Black Nylatron GS, a product of The Polymer Corporation. It is a -molybdenum-disulfide filled nylon, moisture stabilized at 2% water content.
  • each vent 28 extending radially from the bore 26 is molded in the nose 24 and each has the special shape-shown in the drawings.
  • One side 30 of each vent is angled radially outwardly and the opposite side 32 of such vent is sloped with respect to the radii to I form a sharp edge 34 at the radially inward end of each vent.
  • this sharp edge 34 is in bearing contact with the bit holder 16 and under the influence of centrifugal force and the peeling action of this sharp edge 34 the dust or powder which accumulates on the outer circumference of the bit holder will be peeled off from the bit holder 16 and thrown radially outward so that it does not enter the locator assembly and the driving mechanism.
  • a wall 36 innermost from the outer end of the nose is sloped rearwardly as shown.
  • An advantage of this invention also obtained in the depth adjuster described in the above identified eopending application is that the fact that there is a soft lubricating bearing between the bore of the plastic locator sleeve and the metal of the bit holder 16. Another incidental advantage is that the magnetic force present in a magnetic bit holder will not be lessened by the presence of the plastic molded locator sleeve and hence the full effect will be transmitted to the fastener to hold it in proper place at the starting of the drill action.
  • a locator sleeve for a locator assembly designed for driving self tapping screws in drywall applications comprising:
  • a body portion having a nose and a central longitudinally axially extending bore
  • a vent in said nose extending radially outwardly from said bore, said vent having a wall sloping with respect to a radial plane through saidbore;
  • a locator sleeve as defined in claim 2 which consists of a plastic part formed by injection molding of plastic whereby said bore forms a lubricating bearing for said bit holder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Connection Of Plates (AREA)
US00170061A 1971-08-09 1971-08-09 Locators for drywall fasteners Expired - Lifetime US3710832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17006171A 1971-08-09 1971-08-09

Publications (1)

Publication Number Publication Date
US3710832A true US3710832A (en) 1973-01-16

Family

ID=22618391

Family Applications (1)

Application Number Title Priority Date Filing Date
US00170061A Expired - Lifetime US3710832A (en) 1971-08-09 1971-08-09 Locators for drywall fasteners

Country Status (3)

Country Link
US (1) US3710832A (ja)
JP (1) JPS5115920B2 (ja)
DE (1) DE2220790C3 (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891014A (en) * 1974-03-15 1975-06-24 David T Gunn Screw magazine mechanism for power screwdriver
EP0155745A2 (en) * 1984-03-15 1985-09-25 Black & Decker Inc. Depth-adjusting sub-assembly for a tool
EP0450135A1 (de) * 1990-04-05 1991-10-09 MV MARKETING + VERTRIEBS GMBH WIELÄNDER & SCHILL. Handbohrwerkzeug zum Ausbohren von Punktschweissstellen
US5601387A (en) * 1995-06-07 1997-02-11 Black & Decker Inc. Depth adjusting system for a power tool
EP1013380A2 (de) * 1998-12-14 2000-06-28 HILTI Aktiengesellschaft Handgeführtes Schraubgerät
US6499381B2 (en) 2000-08-11 2002-12-31 Milwaukee Electric Tool Corporation Nosepiece assembly for a power tool
US6547013B2 (en) * 2000-06-16 2003-04-15 Hilti Aktiengesellschaft Screw driving tool
US20040033111A1 (en) * 2001-06-28 2004-02-19 Kriaski John Robert Depth adjusting system for a screw gun
US20060107797A1 (en) * 2004-11-25 2006-05-25 Thomas Bader Depth stop device
US20180243871A1 (en) * 2017-02-24 2018-08-30 Citic Dicastal Co.,Ltd Flexible clamping device

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2903833C2 (de) * 1979-02-01 1987-12-23 A.W. Naht (GmbH & Co), 2000 Hamburg Klapphackspaten
JPS5879075A (ja) * 1981-11-05 1983-05-12 Mitsui Toatsu Chem Inc 難燃処理剤
DE3308135A1 (de) * 1983-03-08 1984-09-20 Metabowerke GmbH & Co, 7440 Nürtingen Motorisch angetriebener schraubendreher
JPS6347870U (ja) * 1986-09-16 1988-03-31
US5380132A (en) * 1993-09-10 1995-01-10 Black & Decker Inc. Depth adjusting system for a power tool
US10879560B2 (en) 2016-09-29 2020-12-29 Tdk Corporation Active material and all-solid-state lithium-ion secondary battery
WO2018062081A1 (ja) 2016-09-29 2018-04-05 Tdk株式会社 全固体リチウムイオン二次電池
CN108655998B (zh) * 2018-05-22 2020-05-22 湖南明珠集团有限公司 一种新型直立型活动扳手
CN111687791B (zh) * 2020-07-30 2021-08-03 重庆电子工程职业学院 前置前驱发动机和悬置架安装工装

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940488A (en) * 1959-08-17 1960-06-14 Black & Decker Mfg Co Depth gauge for power-operated screwdriver, nut-runner, and the like
US3454059A (en) * 1967-10-02 1969-07-08 Black & Decker Mfg Co Attaching and adjusting construction for depth locating accessory
US3527273A (en) * 1968-01-24 1970-09-08 Rockwell Mfg Co Adjustable means of limiting driving depth with attachable nosepiece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1981300U (de) * 1967-10-06 1968-03-14 Fein C & E Verstellbarer tiefenanschlag fuer kraftbetaetigte handschrauber.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940488A (en) * 1959-08-17 1960-06-14 Black & Decker Mfg Co Depth gauge for power-operated screwdriver, nut-runner, and the like
US3454059A (en) * 1967-10-02 1969-07-08 Black & Decker Mfg Co Attaching and adjusting construction for depth locating accessory
US3527273A (en) * 1968-01-24 1970-09-08 Rockwell Mfg Co Adjustable means of limiting driving depth with attachable nosepiece

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891014A (en) * 1974-03-15 1975-06-24 David T Gunn Screw magazine mechanism for power screwdriver
EP0155745A2 (en) * 1984-03-15 1985-09-25 Black & Decker Inc. Depth-adjusting sub-assembly for a tool
EP0155745A3 (en) * 1984-03-15 1986-06-25 Black & Decker Inc. Depth-adjusting sub-assembly for a tool
EP0450135A1 (de) * 1990-04-05 1991-10-09 MV MARKETING + VERTRIEBS GMBH WIELÄNDER & SCHILL. Handbohrwerkzeug zum Ausbohren von Punktschweissstellen
US5601387A (en) * 1995-06-07 1997-02-11 Black & Decker Inc. Depth adjusting system for a power tool
EP1013380A2 (de) * 1998-12-14 2000-06-28 HILTI Aktiengesellschaft Handgeführtes Schraubgerät
EP1013380A3 (de) * 1998-12-14 2002-10-23 HILTI Aktiengesellschaft Handgeführtes Schraubgerät
US6547013B2 (en) * 2000-06-16 2003-04-15 Hilti Aktiengesellschaft Screw driving tool
US6499381B2 (en) 2000-08-11 2002-12-31 Milwaukee Electric Tool Corporation Nosepiece assembly for a power tool
US20040033111A1 (en) * 2001-06-28 2004-02-19 Kriaski John Robert Depth adjusting system for a screw gun
US6912932B2 (en) 2001-06-28 2005-07-05 Porter-Cable/Delta Depth adjusting system for a screw gun
US20060107797A1 (en) * 2004-11-25 2006-05-25 Thomas Bader Depth stop device
DE102004056855A1 (de) * 2004-11-25 2006-06-01 Hilti Ag Tiefenanschlagvorrichtung
US7201083B2 (en) * 2004-11-25 2007-04-10 Hilti Aktiengesellschaft Depth stop device
DE102004056855B4 (de) * 2004-11-25 2015-06-25 Hilti Aktiengesellschaft Tiefenanschlagvorrichtung
US20180243871A1 (en) * 2017-02-24 2018-08-30 Citic Dicastal Co.,Ltd Flexible clamping device
US10518373B2 (en) * 2017-02-24 2019-12-31 Citic Dicastal Co. Ltd Flexible clamping device

Also Published As

Publication number Publication date
JPS4826000A (ja) 1973-04-04
JPS5115920B2 (ja) 1976-05-20
DE2220790A1 (de) 1973-02-22
DE2220790C3 (de) 1982-03-11
DE2220790B2 (de) 1981-06-04

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