EP3670084B1 - Dispositif d'entraînement de vis de pilote d'impact à réglage de profondeur - Google Patents

Dispositif d'entraînement de vis de pilote d'impact à réglage de profondeur Download PDF

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Publication number
EP3670084B1
EP3670084B1 EP19212461.8A EP19212461A EP3670084B1 EP 3670084 B1 EP3670084 B1 EP 3670084B1 EP 19212461 A EP19212461 A EP 19212461A EP 3670084 B1 EP3670084 B1 EP 3670084B1
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EP
European Patent Office
Prior art keywords
depth adjustment
sleeve
screw driving
driving device
screw
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.)
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Application number
EP19212461.8A
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German (de)
English (en)
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EP3670084A1 (fr
Inventor
Jacques Rajotte
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Individual
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Individual
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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
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool
    • 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
    • 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
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/12—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using magnetic means

Definitions

  • the present invention relates to a screw driving device and, in particular, an impact driver screw driving device with depth adjustment to adjustably control a depth to which a screw is driven into a work piece.
  • the invention therefore provides an impact driver screw driving device with depth adjustment, comprising: a screw driving mechanism that retains a screw bit for driving screws into a work surface; a floating sleeve that surrounds the screw driving mechanism; a floating sleeve spring that provides a constant bias between an upper end of the floating sleeve and an upper end of a hollow clutch sleeve of the screw driving mechanism; a depth control sleeve threadedly connected to a bottom end of the floating sleeve, the depth control sleeve having a bottom end with a passage through which the screw bit extends; and a clutch spring that constantly urges the screw driving mechanism to a drive position, characterised in that the floating sleeve (16) comprises a plurality of depth adjustment indexes (22), and the depth control sleeve comprises a depth adjustment indicator (20) that is manually displaceable by rotation of the depth adjustment sleeve (18) on the floating sleeve (16) to move the depth adjustment indicator (20)
  • the invention provides an impact driver screw driving device with depth adjustment which has a floating sleeve that surrounds a screw driving mechanism that retains a screw bit.
  • a floating sleeve spring provides a constant bias between a top of the floating sleeve and a top of the screw driving device.
  • a depth adjustment sleeve is threadedly connected to a lower end of the floating sleeve.
  • the floating sleeve and the depth adjustment sleeve are free to rotate independently of the screw driving device so concussive force of the impact driver does not change a driven screw depth adjustment setting.
  • the driven screw depth adjustment setting is set by manually rotating the depth adjustment sleeve to one of a plurality of predetermined driven screw depth settings while gripping the floating sleeve to prevent rotation thereof.
  • FIG. 1 is a side elevational view of an impact driver screw driving device 10 with a depth adjustment mechanism 11 in accordance with the invention.
  • the screw driving device 10 has a drive shaft 12 with a drive end 14 adapted to be engaged and driven by a portable electric impact driver (not shown), a hand tool that is well known in the art.
  • a floating sleeve 16 surrounds the drive shaft 12 of a screw driving mechanism, which will be explained below with reference to FIGs. 4-6 .
  • a depth adjustment sleeve 18 is threadedly connected to a bottom end of the floating sleeve 16, as will be also explained below in more detail with reference to FIGs. 2 and 3 .
  • the depth adjustment sleeve 18 has a depth adjustment indicator 20 that indicates a current depth to which a screw is to be driven by the screw driving device 10.
  • the depth adjustment indicator 20 aligns with one of a plurality of driven screw depth adjustment indexes 22 on the floating sleeve 16, as will be explained below with reference to FIG. 3 .
  • a plurality of depth adjustment lock tabs 24 lock the depth adjustment sleeve 18 at a current driven screw depth adjustment index 22.
  • the depth adjustment sleeve 18 is manually rotated to a different depth adjustment index 22 by an operator of the impact driver screw driving device 10, which changes a depth to which a screw (not shown) is driven in a work piece (not shown) by a screw bit 26.
  • FIG. 2 is a cross-sectional view of the depth adjustment mechanism 11 of the impact driver screw driving device 10, taken along lines 2-2 of FIG. 1 .
  • a floating sleeve spring 28 provides a constant bias between an upper end of the floating sleeve 16 and an upper end of the screw driving mechanism 30 (see FIG. 4 ).
  • a top of the floating sleeve spring 28 is retained by a spring retainer washer 32. This permits the floating sleeve 16 and the depth adjustment sleeve 18 to rotate freely with respect to the screw driving mechanism 30, so concussive force of the impact driver does not change the driven screw depth adjustment.
  • the spring retainer washer 32 is retained within the floating sleeve 16 by a washer retainer clip 34 received in a retainer clip groove 35 in a top end of the floating sleeve 16.
  • the depth adjustment sleeve 18 is rotatably secured on the lower end of the floating sleeve 16 by a male thread 40 on the lower end of the floating sleeve 16 that engages a female thread 42 within the depth adjustment sleeve 18.
  • FIG. 3 is a side elevational view of the impact driver screw driving device 10 showing the depth adjustment sleeve 18 partially cut away to illustrate depth adjustment notches 36 on a floating sleeve 16 of the depth adjustment mechanism 11.
  • the depth adjustment notches 36 are interleaved by depth adjustment ridges 38.
  • the depth adjustment notches 36 are equally distributed around a perimeter of the floating sleeve 16, there being one depth adjustment notch 36 for each depth adjustment index 22 of the screw driving device 10.
  • the depth adjustment sleeve 18 is threadedly connected to the floating sleeve 16.
  • the male thread 40 and female thread 42 are arranged such that the depth adjustment mechanism 11 is at maximum depth setting when the complimentary male thread 40 and female thread 42 are fully engaged.
  • depth adjustment sleeve slots 44 are provided to facilitate deflection of the depth adjustment lock tabs 24 as they are respectively forced over the respective depth adjustment ridges 38 during a change to a different depth adjustment index 22.
  • FIG. 4 is a cross-sectional view taken along lines 2-2 of FIG. 1 with the screw driving mechanism 30 of the impact driver screw driving device 10 in a screw driving position.
  • the screw bit 26 rotates with the drive shaft 12 and is released from driving engagement with the drive shaft 12 when the screw driving mechanism 30 is in a clutched position, as will be explained below with reference to FIG. 5 .
  • the drive end 14 of the drive shaft 12 extends through a central passage 48 in a hollow clutch sleeve 46.
  • a top of the central passage 48 extends inwardly to form a hollow clutch sleeve stop 50 sized to permit the drive end 14 of the drive shaft 12 to pass through, but not permit a socket end 52 of the drive shaft 12 to pass through.
  • a plurality of radial bores 54 through the socket end 52 of the drive shaft 12 respectively house a clutch bearing 56.
  • the clutch bearings 56 are described in detail in Applicant's abovereferenced published co-pending United States patent application number 15/344,807, filed on November 7, 2016 .
  • a flat inner end of the respective clutch bearings 56 engage flats on the hexagonal screw bit 26 in the drive position of the screw driving mechanism 30, so that the screw bit 26 rotates with the screw driving mechanism 30.
  • the respective clutch bearings 56 collectively disengage from the screw bit 26 when the screw driving device 10 is in the clutched position, so that the screw bit 26 no longer rotates with the drive shaft 12.
  • a clutch spring 58 is captured between a clutch spring retainer clip 60, held in a clutch spring retainer clip groove 61 on the drive shaft 12, and a top end of the hollow clutch sleeve 46.
  • the clutch spring 58 constantly urges the hollow clutch sleeve 46 to the drive position of the screw driving device 10.
  • a doughnut-shaped magnet 62 is received in a magnet socket 64 in the lower end of the depth control sleeve 18. The magnet 62 magnetically attracts a steel screw (not shown) placed on the screw bit 26 so that the screw remains on the screw bit 26 until the screw is driven by the impact driver screw driving device 10.
  • the socket end 52 of the drive shaft 12 has a screw bit socket 66 which receives and retains the screw bit 26.
  • the screw bit socket 66 is pierced by the plurality of radial bores 54 (only one is shown in the crosssection).
  • the radial bores 54 respectively receive a one of the clutch bearings 56 that respectively engage the flats on the hexagonal screw bit 26 when the screw driving mechanism 30 is in the drive position shown.
  • the hollow clutch sleeve 46 has a hollow clutch sleeve groove 68 sized to receive a rounded outer end of the respective clutch bearings 56 when the screw driving mechanism 30 is in the clutched position, so that the clutch bearings 56 disengage the screw bit 26 but remain captured in the respective radial bores 54.
  • a ball bearing 70 friction fit in an axial bore 72 in an upper end of the screw bit socket 66 supports a top end of the screw bit 26 to permit the screw bit 26 to remain stationary while the drive shaft 12 rotates freely when the screw driving device 10 is in the clutched position.
  • a circlip 73 captured in a radial groove 74 in the end of the screw bit socket 66 engages notches 76 in the screw bit 26 to removably retain the screw bit 26 in the screw bit socket 66.
  • FIG. 5 is a cross-sectional view of the screw driving device 10 shown in the clutched position in which the screw bit 26 is released from driving engagement with the respective clutch bearings 56 so that a screw 78 is no longer driven by the screw driving mechanism 30.
  • the bottom end of the depth control sleeve 18 contacts the work surface 80 and the drive shaft 12 slides downward through the central passage 48 of the hollow clutch sleeve 46 as the screw 78 is driven into the work surface 80 until the respective radial bores 54 align with the clutch sleeve groove 68 in the hollow clutch sleeve 46 and the respective clutch bearings 56 are forced outwardly into the clutch sleeve groove 68 by pressure exerted by the screw bit 26 as it engages the driven screw 78.
  • FIG. 6 is a cross-sectional view of the screw driving device 10 shown in FIG. 4 manually held in a reverse drive position typically used to extract a driven screw from a workpiece.
  • the floating sleeve 16 is gripped by the operator and pulled upwardly against the bias of the clutch spring 58.
  • the respective clutch bearings 56 are below the clutch sleeve groove 68 in the hollow clutch sleeve 46 and engage respective flats on the screw bit 26, so that rotation of the drive shaft 12 in either direction rotates the screw bit in the same direction. This permits a driven screw 78 to be extracted from the work surface 80.
  • the depth adjustment mechanism 11 rotates independently of the screw driving mechanism 30, the operator can hold the impact driver screw driving device 10 in the reverse drive position while extracting a screw for as long as necessary. This more can also be used to drive a screw deeper into the work surface 80, if desired.

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

Claims (10)

  1. Dispositif d'entraînement de vis de pilote d'impact à réglage, comprenant :
    un mécanisme d'entraînement de vis qui retient un embout de vis pour des vis d'entraînement dans une surface de travail ;
    un manchon flottant (16) qui entoure le mécanisme d'entraînement de vis ;
    un ressort de manchon flottant (28) qui fournit une sollicitation constante entre une extrémité supérieure du manchon (16) et une extrémité supérieure d'un manchon d'embrayage creux (46) du mécanisme ;
    un manchon fileté à commande de profondeur (18) relié à une extrémité inférieure du manchon flottant (16), le manchon fileté à commande de profondeur (18) présentant une extrémité inférieure avec un passage dans lequel l'embout de vis (26) se déploie ; et
    un ressort d'embrayage (58) qui pousse constamment le mécanisme d'entraînement de vis vers une position d'entraînement caractérisé en ce que le manchon flottant (16) comprend une pluralité d'index de réglage de profondeur (22) et le manchon fileté de commande de profondeur comprend un indicateur de réglage de profondeur (20) qui est manuellement déplaçable par rotation du manchon fileté de commande de profondeur (18) sur le manchon flottant (16) pour déplacer l'indicateur de réglage de profondeur (20) d'un index de réglage de profondeur à un autre.
  2. Dispositif d'entraînement de vis de pilote d'impact à réglage de profondeur selon la revendication 1, dans lequel le mécanisme d'entraînement de vis comprend un arbre d'entraînement (14) avec une extrémité d'emboîture reçue dans un manchon d'embrayage creux (46) et le ressort d'embrayage (58) étant coincé entre un étrier de verrouillage du ressort d'embrayage (60) reçu dans une rainure d'étrier de verrouillage (61) d'un ressort d'embrayage (58) sur l'arbre d'entraînement (14) et une partie supérieure du manchon d'embrayage creux (46).
  3. Dispositif d'entraînement de vis de pilote d'impact à réglage selon la revendication 2, dans lequel l'extrémité d'emboîture de l'arbre d'entraînement (14) reçoit et retient l'embout de vis (26).
  4. Dispositif d'entraînement de vis de pilote d'impact à réglage selon l'une quelconque des revendications 1 à 3, dans lequel le ressort de manchon flottant (28) est retenu dans une partie supérieure du manchon flottant (16) par une rondelle de verrouillage de ressort (32) et un étrier de verrouillage de rondelle (34) est reçu dans une rainure d'étrier de verrouillage (35) dans l'extrémité supérieure du manchon de flottement (16).
  5. Dispositif d'entraînement de vis de pilote d'impact à réglage selon l'une des revendications précédentes, dans lequel le manchon flottant (16) comprend une encoche de réglage de profondeur (38) pour chaque index de réglage de profondeur, les encoches de réglage de profondeur respectives (38) étant intercalées dans des stries de réglage de profondeur respectives (44).
  6. Dispositif d'entraînement de vis de pilote d'impact à réglage selon la revendication 5, dans lequel le manchon fileté de commande de profondeur (18) comprend en outre une pluralité de languettes de verrouillage (24) qui se mettent en prise avec une des encoches de réglage de profondeur (38) dans le manchon flottant (16).
  7. Dispositif d'entraînement de vis de pilote d'impact à réglage selon la revendication 6, dans lequel le manchon fileté de commande de profondeur (18) comprend en outre une fente (44) entre chacune des languettes de verrouillage de réglage de profondeur (24) pour faciliter un mouvement des languettes de verrouillage de réglage de profondeur respectives (24) sur les stries de réglage de profondeur respectives (38).
  8. Dispositif d'entraînement de vis de pilote d'impact à réglage selon l'une des revendications précédentes, dans lequel le ressort de manchon flottant (16) est retenu dans une partie supérieure du manchon flottant (16) par une rondelle de verrouillage de ressort (32) et un étrier de verrouillage de rondelle (34) reçu dans une rainure d'étrier de verrouillage (35) dans une partie supérieure du manchon flottant (16).
  9. Dispositif d'entraînement de vis de pilote d'impact à réglage selon l'une quelconque des revendications précédentes, dans lequel le mécanisme d'entraînement de vis comprend un arbre d'entraînement (14) avec une extrémité d'emboîture reçue dans le manchon d'embrayage creux (46), l'extrémité d'emboîture de l'arbre d'entraînement (14) recevant et retenant l'embout de vis (26).
  10. Dispositif d'entraînement de vis de pilote d'impact à réglage selon la revendication 9, dans lequel le ressort d'embrayage (58) est coincé entre un étrier de verrouillage de ressort d'embrayage (60) reçu dans une rainure d'étrier de verrouillage de ressort d'embrayage (61) dans l'arbre d'entraînement (14) et une partie supérieure du manchon d'embrayage creux (46).
EP19212461.8A 2018-12-18 2019-11-29 Dispositif d'entraînement de vis de pilote d'impact à réglage de profondeur Active EP3670084B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA3027891A CA3027891C (fr) 2018-12-18 2018-12-18 Dispositif d`entrainement de vis destine a un dispositif d`entrainement a chocs avec reglage de profondeur

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EP3670084A1 EP3670084A1 (fr) 2020-06-24
EP3670084B1 true EP3670084B1 (fr) 2022-08-31

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Citations (2)

* 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
US5996452A (en) * 1998-10-13 1999-12-07 Chiang; Shu Chi Chuck device for power tool

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610749A1 (de) * 1986-03-29 1987-10-01 Helfer & Co Kg Kraftantreibbarer schraubkopf
DE202012105081U1 (de) * 2012-12-28 2013-03-27 Wen Hung Chiang Befestigungselementhalter für kraftgetriebenes Handwerkzeug
CA2831764C (fr) * 2013-11-04 2016-02-16 Jacques Rajotte Dispositif de vissage avec profondeur de fraisure reglable
US9764452B2 (en) * 2015-06-27 2017-09-19 Kevin Scott Koch Device and method for fastener element retention and installation
US10821579B2 (en) 2016-11-07 2020-11-03 Jacques Rajotte Screw driving device for use with an impact driver

Patent Citations (2)

* 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
US5996452A (en) * 1998-10-13 1999-12-07 Chiang; Shu Chi Chuck device for power tool

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Publication number Publication date
EP3670084A1 (fr) 2020-06-24
CA3027891C (fr) 2020-09-15
CA3027891A1 (fr) 2020-06-18

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