EP3165331A1 - Dispositif de vissage et vis - Google Patents

Dispositif de vissage et vis Download PDF

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Publication number
EP3165331A1
EP3165331A1 EP15192985.8A EP15192985A EP3165331A1 EP 3165331 A1 EP3165331 A1 EP 3165331A1 EP 15192985 A EP15192985 A EP 15192985A EP 3165331 A1 EP3165331 A1 EP 3165331A1
Authority
EP
European Patent Office
Prior art keywords
clutch
screw
drive
setting direction
output
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.)
Withdrawn
Application number
EP15192985.8A
Other languages
German (de)
English (en)
Inventor
Thomas Foser
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 EP15192985.8A priority Critical patent/EP3165331A1/fr
Priority to AU2016227885A priority patent/AU2016227885A1/en
Priority to KR1020177027027A priority patent/KR20170121249A/ko
Priority to EP16707051.5A priority patent/EP3265272A2/fr
Priority to CN201680012987.6A priority patent/CN107407342A/zh
Priority to PCT/EP2016/053847 priority patent/WO2016139095A2/fr
Priority to JP2017545935A priority patent/JP2018512291A/ja
Priority to US15/553,333 priority patent/US20180185996A1/en
Priority to CA2977571A priority patent/CA2977571A1/fr
Publication of EP3165331A1 publication Critical patent/EP3165331A1/fr
Withdrawn legal-status Critical Current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
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket type
    • 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
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/141—Mechanical overload release couplings

Definitions

  • the invention relates to a device for screwing a screw into a substrate and a screw.
  • Screws usually have a mounting portion for screwing the screw in a setting direction in a substrate and a head with a screw drive.
  • screws which also have a connection portion for attaching an attachment to the screw, wherein the connection portion is often formed as a thread.
  • a device for screwing a screw in a setting direction into a substrate comprises a coupling with a rotating drivable clutch drive and a clutch output, wherein in a coupled state of the clutch, the clutch drive is connected torque transmitting to the clutch output and in a disengaged state of the clutch, the clutch drive against the clutch output is freely rotatable, and wherein the clutch is disengaged when the clutch output, starting moved from the coupled state of the clutch, beyond a predetermined amount addition in the setting direction of the clutch drive.
  • the coupling drive has an insertion end for insertion into a drill chuck of a screwdriver.
  • the device comprises a Wegbegrenzer for limiting movement of the coupling drive in the setting direction, wherein the Wegbebankr has a background support for contact with the ground and a stop for engagement with the clutch drive.
  • the measured in the setting direction distance between the base support and the stopper is adapted to the dimensions of the clutch drive, the clutch output and the screw so that the clutch is disengaged when the screw is screwed a predetermined setting depth far into the ground.
  • the object is achieved by an adjusting device by means of which the distance measured in the setting direction between the base support and the stop can be adjusted. As a result, unwanted deviations from the predetermined screwing can be compensated.
  • the Wegbregenzer comprises a support surface having the background support and a stop member having the stop, wherein the actuating device comprises a first thread on the support member and a second thread on the stop member, and wherein the first thread and the second thread screwed into one another, so that a rotation of the support member relative to the stop member causes a change in the measured distance in the setting direction between the substrate support and the stop.
  • the support part and / or the stop part comprises a guide sleeve for the screw.
  • a preferred embodiment is characterized in that the adjusting device comprises a latching device which engages at one or more different distances measured in the setting direction between the base support and the stop. As a result, an undesired adjustment of the distance between the substrate support and the stop is counteracted.
  • a preferred embodiment is characterized in that the clutch comprises a clutch spring which preloads the clutch in its disengaged state.
  • a spring force of the clutch spring acts on the clutch output and loads the clutch output away from the clutch drive.
  • a preferred embodiment is characterized in that the clutch drive comprises one or more drive-side claws, and wherein the clutch output comprises one or more output-side claws, and wherein the drive-side claws and the output-side claws engage with each other for the torque-transmitting connection of the clutch drive with the clutch output.
  • a preferred embodiment is characterized in that the coupling output comprises a head of the screw, and wherein the coupling drive comprises a receptacle for the head. The head of the screw is then disengaged directly from the receptacle.
  • the clutch output comprises a receptacle for a head of the screw. The recording is then uncoupled together with the recorded therein head of the screw of the clutch drive.
  • the receptacle comprises a drive bit designed preferably as an internal polygon for torque transmission from the receptacle to the head of the screw.
  • a preferred embodiment is characterized in that the receptacle has a guide section, which widens steadily in the setting direction, for guiding a transition section of the screw adjoining the head of the screw.
  • the guide section widens conically in the setting direction. Under certain circumstances, guiding the screw contributes to an improved constancy of the depth of engagement of the screw into the substrate.
  • a preferred embodiment is characterized in that the adjusting device comprises an actuating stop, which limits a Verstellhub, that is, a maximum adjustment, the adjusting device.
  • the stop member on the parking stop.
  • a screw has a fastening section for screwing the screw in a setting direction into a substrate, a connecting section for fastening an attachment to the screw, and a head, which has a preferably designed as an external polygon screw drive, on.
  • the object is achieved by a transition section, which widens continuously in the setting direction and which adjoins the head in the setting direction.
  • the transition section preferably widens conically in the setting direction. At the steadily widening transition section, the screw can lead, which may contribute to an improved consistency of the screwing depth of the screw into the ground.
  • a preferred embodiment is characterized in that a dimension of the screw increases transversely to the setting direction, particularly preferably perpendicular to the setting direction, from the head to the connection portion steadily.
  • the avoidance of unsteady points leads to a facilitated guidance of the screw and possibly to a reduction of jamming of the screw in the leadership of the screwing.
  • connection portion has a connection thread for screwing the attachment to the screw.
  • Fig. 1 and 2 show a screwing 1 for screwing a screw 2 in a setting direction 3 in a substrate, not shown.
  • the screwing device 1 comprises a clutch 4 with a rotatably driven clutch drive 5 and a clutch output 6.
  • the clutch drive 5 comprises a drive shaft 8 with a spigot 13 and a preferably fixed thereto by a press fit and rigidly connected thereto drive ring 7.
  • the drive ring 7 has four drive side Claws 9 up.
  • the clutch output 6 comprises an output shaft 10 with a receptacle 14 for a head 15 of the screw 2 and a preferably fixed thereto by a press fit and rigidly connected to the output ring 11.
  • the output ring 11 has four output-side jaws 12.
  • the receptacle 14 has a guide portion 27, which widens continuously conically in the setting direction 3 and has the guidance of a subsequent to the head 15 of the screw 2 transition portion 28 of the screw 2.
  • the receptacle 14 has a hexagon socket or hexalobular.
  • the head 15 of the screw 2 has correspondingly an external hexagon or hexalobular.
  • a magnet 37 is attached, so that the screw 2 is better held in the receptacle 14 under certain circumstances.
  • the drive-side jaws and / or the driven-side jaws are provided with an adhesive fat.
  • the clutch drive one, two, three or more than four drive-side jaws, and the clutch output corresponding to one, two, three or more than four output-side jaws.
  • the Wegbe dictionary 16 includes a support member 17 with a support surface 18 for abutment against the substrate, not shown, and a stop member 19 with a stop 20 to rest on the Coupling drive 5.
  • the stop 20 is against the setting direction 3 at a counter-stop 26 of the drive shaft 8 at.
  • the support member 17 has a guide sleeve 21, whose end face in the setting direction forms the substrate support 18, and an internal thread 22.
  • the stop member 19 has a press-in sleeve 23, the end face against the setting direction forms the stop 20, and a threaded sleeve 25 with an external thread 24.
  • the drive shaft 8 is freely rotatably mounted in the press-in sleeve 23.
  • the clutch 4 is at least partially received in the threaded sleeve 25 and includes a clutch spring 29, which the clutch 4 in their in Fig. 1 shown, disengaged state biased by a spring force of the clutch spring 29 on the one hand to the clutch output 6, preferably on a counter to the setting direction 3 facing first shoulder 30 of the Kupplungsabtriebs 6, and on the other hand on the clutch drive 5, preferably on a pointing in the setting direction 3 second shoulder 31 of the clutch drive 5, attacks.
  • the clutch spring 29 presses the first shoulder 30 and the second shoulder 31 apart and thus loads the clutch output 6 away from the clutch drive 5.
  • the insertion end 13 is first inserted into a chuck of a screwdriver, not shown, and thus driven in rotation, as soon as the screwdriver is turned on. Since the clutch 4 is biased by the clutch spring 29 in its disengaged state, only the clutch drive 5 with the drive shaft 8 and the drive-side claw 9 having the drive side 7 is driven to rotate. Once the screwdriver is pressed together with the screwing device 1 to the ground in such a way that the substrate support 18 rests on the ground, the spring force of the clutch spring 29 is overcome, so that the clutch drive 5 moves toward the clutch output 6.
  • Wegbegrenzer 16 that is, by the distance in the setting direction 3 between the substrate support 18 and the stop 20, a predetermined distance between the clutch drive 5 and the ground is ensured during the entire screwing.
  • the screw 2 with its head 15 moves towards the ground, the receptacle 14 is tracked with the aid of the coupling spring 29 to drive the screw 2.
  • the screw 2 is rotationally driven via the receptacle 14 until the driven-side claws 12 come out of engagement with the drive-side jaws 9.
  • the clutch output 6 has then moved beyond a predetermined amount in the setting direction 3 of the clutch drive 5.
  • the measured in the setting direction distance between the substrate support 18 and the stopper 20 is adapted to the dimensions of the clutch drive 5, the clutch output 6 and the screw 2, that the clutch 4 is disengaged just when the screw 2 a predetermined depth setting far screwed into the ground.
  • an adjusting device 32 which includes the internal thread 22 and the external thread 24, the measured in the setting direction 3 distance between the ground support 18 and the stopper 20, and thus the exact screwing of the screw 2 in the Background, adjustable.
  • the internal thread 22 and the external thread 24 are screwed into each other, so that a rotation of the support member 17 relative to the stop member 19 causes a change in the depth of engagement.
  • the adjusting device further comprises an actuating stop 38 which limits the adjusting stroke of the adjusting device 32, for example to 3 mm.
  • the stop member 19 on the parking stop 38.
  • a latching device 33 serves to latch during the adjustment of the adjusting device 32 and has a detent spring 34, which is supported on the one hand in a plurality of recesses 35 on the inside of the support member 17 and on the other hand on two flats 36 on the outside of the threaded sleeve 25 of the stop member 19. For a rotation of the support member 17 relative to the stop member 19 is to overcome a predetermined resistance force to deform the detent spring 34 according to and engage in the next flat 36.
  • Fig. 3 shows an embodiment of a screw 51 in a true-to-scale side view.
  • the bolt-shaped screw 51 comprises a fastening portion 52 for screwing along a setting direction 53 in a bore in a substrate, not shown, and a connection portion 54 for disposition outside the bore and a head 57 with a trained as suitssechsrund screw drive 55 for applying a torque to the screw 51st
  • the fastening portion 52 has a self-tapping threaded portion 56 for molding, in particular, a female threading into the bore.
  • the connecting portion 54 has a connection thread 64 for screwing on an attachment, not shown, for example, a nut on the screw 51.
  • the connection thread has for example an outer diameter of 8 mm.
  • the screw 51 furthermore comprises a transition section 58 which widens conically in the setting direction and which adjoins the head 57 in the setting direction 53.
  • the connecting section 54 in turn adjoins the transition section 58, so that the diameter of the screw 51 measured perpendicular to the setting direction 53 increases steadily from the head 57 to the connection section 54.
  • the fixing portion 52 has a thread length in the setting direction 53 of 2.5 mm.
  • the one-piece screw 51 and consists of a preferably inductively hardened and / or preferably stainless steel with a material hardness of at least 800 MPa, for example 1000 MPa.
  • the connecting portion 54 has a collar 59 with a stop 60 on which a sealing element can be arranged, which seals the bore or the space between the bore and the screw 51 from the environment after fixing the fastening element to the fastening object.
  • the attachment section closes directly to the connection thread, without an intermediate collar.
  • the thread length of the attachment portion is then, for example, 6.1 mm.
  • the interface geometry 55 is applied using a primary molding method, and a self-tapping thread is applied to a semifinished product by means of a rolling process to produce the fastening section 52. Subsequently, a chamfer 63 is produced on the front end face of the semifinished product by means of a milling method, wherein the self-forming thread and the chamfer 63 preferably overlap to form a threaded inlet and an external thread.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP15192985.8A 2015-03-02 2015-11-04 Dispositif de vissage et vis Withdrawn EP3165331A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP15192985.8A EP3165331A1 (fr) 2015-11-04 2015-11-04 Dispositif de vissage et vis
AU2016227885A AU2016227885A1 (en) 2015-03-02 2016-02-24 Screwing device and screw
KR1020177027027A KR20170121249A (ko) 2015-03-02 2016-02-24 나사 조임 장치 및 나사
EP16707051.5A EP3265272A2 (fr) 2015-03-02 2016-02-24 Dispositif de vissage et vis
CN201680012987.6A CN107407342A (zh) 2015-03-02 2016-02-24 旋拧装置和螺纹件
PCT/EP2016/053847 WO2016139095A2 (fr) 2015-03-02 2016-02-24 Dispositif de vissage et vis
JP2017545935A JP2018512291A (ja) 2015-03-02 2016-02-24 ねじ止め装置及びねじ
US15/553,333 US20180185996A1 (en) 2015-03-02 2016-02-24 Screwing device and screw
CA2977571A CA2977571A1 (fr) 2015-03-02 2016-02-24 Dispositif de vissage et vis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15192985.8A EP3165331A1 (fr) 2015-11-04 2015-11-04 Dispositif de vissage et vis

Publications (1)

Publication Number Publication Date
EP3165331A1 true EP3165331A1 (fr) 2017-05-10

Family

ID=54541962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15192985.8A Withdrawn EP3165331A1 (fr) 2015-03-02 2015-11-04 Dispositif de vissage et vis

Country Status (1)

Country Link
EP (1) EP3165331A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430044A (en) * 1945-09-19 1947-11-04 Campsmith Robert John Screw driver and the like

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430044A (en) * 1945-09-19 1947-11-04 Campsmith Robert John Screw driver and the like

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