EP3995257A1 - Rutschhemmende befestigungstreiber - Google Patents

Rutschhemmende befestigungstreiber Download PDF

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Publication number
EP3995257A1
EP3995257A1 EP21209320.7A EP21209320A EP3995257A1 EP 3995257 A1 EP3995257 A1 EP 3995257A1 EP 21209320 A EP21209320 A EP 21209320A EP 3995257 A1 EP3995257 A1 EP 3995257A1
Authority
EP
European Patent Office
Prior art keywords
face
longitudinal axis
driving
peripheral
angle
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Withdrawn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
EP21209320.7A
Other languages
English (en)
French (fr)
Inventor
Cheng-Wei Su
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.)
Hong Ann Tool Industries Co Ltd
Original Assignee
Hong Ann Tool Industries Co Ltd
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
Priority claimed from TW109140586A external-priority patent/TWI749883B/zh
Application filed by Hong Ann Tool Industries Co Ltd filed Critical Hong Ann Tool Industries Co Ltd
Publication of EP3995257A1 publication Critical patent/EP3995257A1/de
Withdrawn legal-status Critical Current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
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section

Definitions

  • the present invention relates to a fastener driver and, more particularly, to an anti-slip fastener driver.
  • a conventional fastener driver such as a hexagonal wrench, a screwdriver, etc. is a hand tool that is usually used to driver a fastener, such as a bolt or a screw.
  • a fastener such as a bolt or a screw.
  • the fasteners are generally made of materials softer than the fastener drivers, resulting in wear of the fasteners while being driven by the fastener drivers.
  • a fastener forcibly driven by a fastener driver of a size not matching with the fastener will wear, too. The wear of a fastener result in damage to a driving hole of the fastener.
  • an anti-slip fastener driver comprises a shank and a driving portion formed on an end of the shank and defining a longitudinal axis.
  • the driving portion includes an outer periphery surrounding the longitudinal axis and having a first peripheral face.
  • An end of the driving portion opposite to the shank includes a first end face connected to the first peripheral face.
  • the first end face includes a first side and a first angle located outside of the first side.
  • the end of the driving portion opposite to the shank includes a reference plane perpendicular to the longitudinal axis.
  • the first side is located on the reference plane.
  • An end of the first side is adjacent to the longitudinal axis.
  • Another end of the first side opposite to the longitudinal axis is connected to the first peripheral face.
  • the first angle is located between the reference plane and the shank.
  • an anti-slip fastener driver comprises a shank and a driving portion formed on an end of the shank and defining a longitudinal axis.
  • the driving portion includes an outer periphery surrounding the longitudinal axis and having a first peripheral face.
  • An end of the driving portion opposite to the shank includes a front conical face and a first end face.
  • the front conical face is a conical face centered at the longitudinal axis.
  • the first end face is connected to the first peripheral face.
  • the first end face includes a first side and a first angle not located on the first side.
  • the first side is located on the front conical face.
  • An end of the first side is adjacent to the longitudinal axis.
  • Another end of the first side opposite to the longitudinal axis is connected to the first peripheral face.
  • the first angle is located between the front conical face and the shank along the longitudinal axis.
  • FIGS. 1-3 show a perspective view, a side elevational view, and an end elevational view of an anti-slip fastener driver 10 of a first embodiment according to the present invention.
  • the anti-slip fastener driver 10 includes a shank 20 and a driving portion 30.
  • the driving portion 30 is formed on an end of the shank 20 and defines a longitudinal axis L.
  • the driving portion 30 includes regular hexagonal cross sections perpendicular to the longitudinal axis L.
  • the driving portion 30 includes an outer periphery surrounding the longitudinal axis L and having a first peripheral face 31, a second peripheral face 311, a third peripheral face 312, a fourth periphery face 313, a fifth peripheral face 314, and a sixth peripheral face 315.
  • Each of the first, second, third, fourth, fifth, and sixth peripheral faces 31, 311-315 extends in a direction parallel to the longitudinal axis L.
  • Each two adjacent ones of the first, second, third, fourth, fifth, and sixth peripheral faces 31, 311-315 have an inner angle of 120° therebetween.
  • An end of the driving portion 30 opposite to the shank 20 includes a first end face 32 connected to the first peripheral face 31.
  • the first end face 32 includes a first side 321 and a first angle 322 located outside of the first side 321.
  • the end of the driving portion 30 opposite to the shank 20 includes a reference plane P perpendicular to the longitudinal axis L.
  • the first side 321 is located on the reference plane P.
  • An end of the first side 321 is adjacent to the longitudinal axis L.
  • Another end of the first side 321 opposite to the longitudinal axis L is connected to the first peripheral face 31.
  • the first angle 322 is located between the reference plane P and the shank 20.
  • the first end face 32 is connected to a first driving face 323 extending in a direction parallel to the longitudinal axis L.
  • the first driving face 323 is connected to the first angle 322.
  • the first driving face 323 includes an angle located on the longitudinal axis L. A side of the first driving face 323 distant to the first end face 32 is located on the reference plane P.
  • the end of the driving portion 30 opposite to the shank 20 includes a second end face 33 connected to the second peripheral face 311.
  • the second peripheral face 311 is contiguous to the first peripheral face 31.
  • the second end face 33 includes a second side 331 and a second angle 332 located outside of the second side 331.
  • the second side 331 is located on the reference plane P and is connected to the first driving face 323.
  • the end of the first side 321 adjacent to the longitudinal axis L has an end point located on the longitudinal axis L in this embodiment.
  • An end of the second side 331 is connected to the first side 321.
  • An interconnection between the first side 321 and the second side 331 is located on the longitudinal axis L.
  • Another end of the second side 331 opposite to the longitudinal axis L is connected to the second peripheral face 311.
  • the second angle 332 is located between the reference plane P and the shank 20.
  • the end of the driving portion 30 opposite to the shank 20 includes a third end face 34, a fourth end face 35, a fifth end face 36, and a sixth end face 37.
  • the third end face 34 is connected to the third peripheral face 312.
  • the third peripheral face 312 is contiguous to the second peripheral face 311 and is located on a side of the second peripheral face 311 opposite to the first peripheral face 31.
  • the third end face 34 includes a third side 341 and a third angle 342 located outside of the third side 341.
  • the third side 341 is located on the reference plane P.
  • An end of the third side 341 is connected to the first side 321.
  • An interconnection between the first side 321 and the third side 341 is located on the longitudinal axis L.
  • Another end of the third side 341 opposite to the longitudinal axis L is connected to the third peripheral face 312.
  • the third angle 342 is located between the reference plane P and the shank 20.
  • the fourth end face 35 is connected to the fourth peripheral face 313.
  • the fourth peripheral face 313 is contiguous to the third peripheral face 312 and is located on a side of the third peripheral face 312 opposite to the second peripheral face 311.
  • the fourth peripheral face 313 is parallel to the first peripheral face 31.
  • the fourth end face 35 includes a fourth side 351 and a fourth angle 352 located outside of the fourth side 351.
  • the fourth side 351 is located on the reference plane P.
  • An end of the fourth side 351 is connected to the first side 321.
  • the first side 321 and the fourth side 351 are located on the same line.
  • An interconnection between the first side 321 and the fourth side 351 is located on the longitudinal axis L.
  • Another end of the fourth side 351 opposite to the longitudinal axis L is connected to the fourth peripheral face 313.
  • the fourth angle 352 is located between the reference plane P and the shank 20.
  • the fifth end face 36 is connected to the fifth peripheral face 314.
  • the fifth peripheral face 314 is contiguous to the fourth peripheral face 313 and is located on a side of the fourth peripheral face 313 opposite to the third peripheral face 312.
  • the fifth peripheral face 314 is parallel to the second peripheral face 311.
  • the fifth end face 36 includes a fifth side 361 and a fifth angle 362 located outside of the fifth side 361.
  • the fifth side 361 is located on the reference plane P.
  • An end of the fifth side 361 is connected to the second side 331.
  • An intersection between the second side 331 and the fifth side 361 is located on the longitudinal axis L.
  • Another end of the fifth side 361 opposite to the longitudinal axis L is connected to the fifth peripheral face 314.
  • the fifth angle 362 is located between the reference plane P and the shank 20.
  • the sixth end face 37 is connected to the sixth peripheral face 315.
  • the sixth peripheral face 315 is located between the first peripheral face 31 and the fifth peripheral face 314.
  • the sixth peripheral face 315 is parallel to the third peripheral face 312.
  • the sixth end face 37 includes a sixth side 371 and a sixth angle 372 located outside of the sixth side 371.
  • the sixth side 371 is located on the reference plane P.
  • An end of the sixth side 371 is connected to the third side 341.
  • the third side 341 and the sixth side 371 are on the same line.
  • An interconnection between the third side 341 and the sixth side 371 is located on the longitudinal axis L.
  • Another end of the sixth side 371 opposite to the longitudinal axis L is connected to the sixth peripheral face 315.
  • the sixth angle 372 is located between the reference plane P and the shank 20.
  • the third end face 34 is connected to a second driving face 343 extending in a direction parallel to the longitudinal axis L.
  • the second driving face 343 is connected to the third angle 342.
  • the second driving face 343 has an angle located on the longitudinal axis L.
  • a side of the second driving face 343 distant to the third end face 34 is located on the reference plane P.
  • the fourth side 351 is connected to the second driving face 343.
  • the fifth end face 36 is connected to a third driving face 363 extending in a direction parallel to the longitudinal axis L.
  • the third driving face 363 is connected to the fifth angle 362.
  • the third driving face 363 has an angle located on the longitudinal axis L.
  • a side of the third driving face 363 distant to the fifth end face 36 is located on the reference plane P.
  • the sixth side 371 is connected to the third driving face 363.
  • the second end face 33 is connected to a fourth driving face 333 extending in a direction parallel to the longitudinal axis L.
  • the fourth driving face 333 is connected to the second angel 332.
  • the fourth driving face 333 has an angle located on the longitudinal axis L.
  • a side of the fourth driving face 333 distant to the second end face 33 is located on the reference plane P.
  • the third side 341 is connected to the fourth driving face 333.
  • the fourth end face 35 is connected to a fifth driving face 353 extending in a direction parallel to the longitudinal axis L.
  • the fifth driving face 353 is connected to the fourth angle 352.
  • the fifth driving face 353 has an angle located on the longitudinal axis L.
  • a side of the fifth driving face 353 distant to the fourth end face 35 is located on the reference plane P.
  • the fifth side 361 is connected to the fifth driving face 353.
  • the sixth end face 37 is connected to a sixth driving face 373 extending in a direction parallel to the longitudinal axis L.
  • the sixth driving face 373 is connected to the sixth angle 372.
  • the sixth driving face 373 has an angle located on the longitudinal axis L.
  • a side of the sixth driving face 373 distant to the sixth end face 37 is located on the reference plane P.
  • the first side 321 is connected to the sixth driving face 373.
  • the second end face 33 is a planar face extending perpendicularly to the longitudinal axis L
  • the second side 331 and the second angle 332 are located on the reference plane P
  • the third side 341 is connected to the second end face 33
  • the fourth end face 35 is a planar face extending perpendicularly to the longitudinal axis L
  • the fourth side 351 and the fourth angle 352 are located on the reference plane P
  • the fifth side 361 is connected to the fourth end face 35
  • the sixth end face 37 is a planar face extending perpendicularly to the longitudinal axis L
  • the sixth side 371 and the sixth angle 372 are located on the reference plane P
  • the first side 321 is connected to the sixth end face 37.
  • each of the first end face 32, the third end face 34, and the fifth end face 36 is a slant face at a non-parallel angle to the reference plane P.
  • the anti-slip fastener driver 10 can achieve an excellent anti-slip effect by the above structure and, thus, can smoothly drive a screw even if the driving hole of the screw is damaged.
  • the driving portion 30 can be inserted into the damaged driving hole in a slant direction, and the recess of the first end face 32 forms a corner at the first driving face 323 to contact with an inner wall face of the driving hole, assisting in driving of the screw.
  • FIGS. 4-6 show a perspective view, a side elevational view, and an end elevational view of an anti-slip fastener driver of a second embodiment according to the present invention.
  • the second embodiment is substantially the same as the first embodiment but is mainly different from the first embodiment by that an end of the first side 321c adjacent to the longitudinal axis L has an end point not located on the longitudinal axis L, an end of the second side 331c is adjacent to the longitudinal axis L and has an end point not located on the longitudinal axis L, an end of the third side 341c is adjacent to the longitudinal axis L and has an end point not located on the longitudinal axis L, an end of the fourth side 351c is adjacent to the longitudinal axis L and has an end point not located on the longitudinal axis L, an end of the fifth side 361c is adjacent to the longitudinal axis L and has an end point not located on the longitudinal axis L, and an end of the sixth side 371c is adjacent to the longitudinal axis L and has an
  • the first driving face 323c does not intersect with the longitudinal axis L.
  • the second driving face 343c does not intersect with the longitudinal axis L.
  • the third driving face 363c does not intersect with the longitudinal axis L.
  • the fourth driving face 333c does not intersect with the longitudinal axis L.
  • the fifth driving face 353c does not intersect with the longitudinal axis L.
  • the sixth driving face 373c does not intersect with the longitudinal axis L.
  • the second end face 33c is located on a side of the first driving face 323c opposite to the first end face 32c and is not connected to the first driving face 323c.
  • the second side 331c is located on a side of the second end face 33c adjacent to the first driving face 323c.
  • the fourth end face 35c is located on a side of the second driving face 343c opposite to the third end face 34c and does not intersect with the second driving face 343c.
  • the fourth side 351c is located on a side of the fourth end face 35c adjacent to the second driving face 343c.
  • the sixth end face 37c is located on a side of the third driving face 363c opposite to the fifth end face 36c and does not intersect with the third driving face 363c.
  • the sixth side 371c is located on a side of the sixth end face 37c adjacent to the third driving face 363c.
  • the third end face 34c is located on a side of the fourth driving face 333c opposite to the first end face 32c and does not intersect with the fourth driving face 333c.
  • the third side 341c is located on a side of the third end face 34c adjacent to the fourth driving face 333c.
  • the fifth end face 36c is located on a side of the fifth driving face 353c opposite to the fourth end face 35c and does not intersect with the fifth driving face 353c.
  • the fifth side 361c is located on a side of the fifth end face 36c adjacent to the fifth driving face 353c.
  • the first end face 32c is located on a side of the sixth driving face 373c opposite to the sixth end face 37c and does not intersect with the sixth driving face 373c.
  • the first side 321 is located on a side of the first end face 32c adjacent to the sixth driving face 373c.
  • the end of the driving portion 30c opposite to the shank 20c includes a seventh end face 38c.
  • the seventh end face 38c is a planar face extending perpendicularly to the longitudinal axis L and is located on the reference plane P.
  • the seventh end face 38c is connected to the first end face 32c, the first driving face 323c, the second end face 33c, the second driving face 343c, the third end face 34c, the third driving face 363c, the fourth end face 35c, the fourth driving face 333c, the fifth end face 36c, the fifth driving face 353c, the sixth end face 37c, and the sixth driving face 373c.
  • An outer periphery of the seventh end face 38c surrounding the longitudinal axis L is connected to the first peripheral face 31c, the second peripheral face 311c, the third peripheral face 312c, the fourth peripheral face 313c, the fifth peripheral face 314c, and the sixth peripheral face 315c.
  • FIGS. 7-9 show a perspective view, a side elevational view, and an end elevational view of an anti-slip fastener driver of a third embodiment according to the present invention.
  • the third embodiment is substantially the same as the second embodiment but is mainly different from the fourth embodiment by that the first peripheral face 31e has a lateral width W in a radial direction perpendicular to the longitudinal axis L, an end of the first side 321e adjacent to the longitudinal axis L and another end of the first side 321e connected to the first peripheral face 31e have a first length L1 therebetween, an end of the second side 331e adjacent to the longitudinal axis L and another end of the second side 331e connected to the second peripheral face 311e have a second length L2 therebetween, an end of the third side 341e adjacent to the longitudinal axis L and another end of the third side 341e connected to the third peripheral face 312e have a third length L3 therebetween, an end of the fourth side 351e adjacent to the longitudinal axis
  • first driving face 323e connected to the seventh end face 38e intersects with the first side 321e.
  • the side of the first driving face 323e and the first side 321e have a first angle A1 therebetween.
  • a side of the fourth driving face 333e connected to the seventh end face 38e intersects with the second side 331e.
  • the side of the fourth driving face 333e and the second side 331e have a second angle A2 therebetween.
  • a side of the second driving face 343e connected to the seventh end face 38e intersects with the third side 341c.
  • the side of the second driving face 343e and the third side 341e have a third angle A3 therebetween.
  • a side of the fifth driving face 353e connected to the seventh end face 38e intersects with the fourth side 351e.
  • the side of the fifth driving face 353e and the fourth side 351e have a fourth angle A4 therebetween.
  • a side of the third driving face 363e connected to the seventh end face 38e intersects with the fifth side 361e.
  • the side of the third driving face 363e and the fifth side 361e have a fifth angle A5 therebetween.
  • a side of the sixth driving face 373e connected to the seventh end face 38e intersects with the sixth side 371e.
  • the side of the sixth driving face 373e and the sixth side 371e have a sixth angle A6 therebetween.
  • Each of the first angle A1, the second angle A2, the third angle A3, the fourth angle A4, the fifth angle A5, and the sixth angle A6 is larger than 80°.
  • FIGS. 10-12 show a perspective view, a side elevational view, and an end elevational view of an anti-slip fastener driver 70g of a fourth embodiment according to the present invention.
  • the anti-slip fastener driver 70g includes a shank 80g and a driving portion 90g.
  • the driving portion 90g is formed on an end of the shank 80g and defines a longitudinal axis L.
  • the driving portion 90g includes regular hexagonal cross sections perpendicular to the longitudinal axis L.
  • the driving portion 90g includes an outer periphery surrounding the longitudinal axis L and having a first peripheral face 91g, a second peripheral face 911g, a third peripheral face 912g, a fourth periphery face 913g, a fifth peripheral face 914g, and a sixth peripheral face 915g.
  • Each of the first, second, third, fourth, fifth, and sixth peripheral faces 91g, 911g-915g extends in a direction parallel to the longitudinal axis L.
  • Each two adjacent ones of the first, second, third, fourth, fifth, and sixth peripheral faces 91g, 911g-915g have an inner angle of 120° therebetween.
  • An end of the driving portion 90g opposite to the shank 80g includes a front conical face 92g and a first end face 93g.
  • the front conical face 92g is a conical face centered at the longitudinal axis L.
  • the first end face 93g is connected to the first peripheral face 91g.
  • the first end face 93g includes a first side 931g and a first angle 932g not located on the first side 931g.
  • the first side 931g is located on the front conical face 92g.
  • An end of the first side 931g is adjacent to the longitudinal axis L.
  • Another end of the first side 931g opposite to the longitudinal axis L is connected to the first peripheral face 91g.
  • the first angle 932g is located between the front conical face 92g and the shank 80g along the longitudinal axis L.
  • An end of the first side 931g adjacent to the longitudinal axis L has an end point not located on the longitudinal axis L.
  • the first end face 93g is connected to a first driving face 933g extending in a direction parallel to the longitudinal axis L.
  • the first driving face 933g is connected to the first angle 932g.
  • the first driving face 933g does not intersect with the longitudinal axis L.
  • a side of the first driving face 933g distant to the first end face 93g is located on the front conical face 92g.
  • the end of the driving portion 90g opposite to the shank 80g includes a second end face 94g connected to the second peripheral face 911g.
  • the second peripheral face 911g is contiguous to the first peripheral face 91g.
  • the second end face 94g includes a second side 941g and a second angle 942g located outside of the second side 941g.
  • the second side 941g is located on the front conical face 92g.
  • An end of the second side 941g is adjacent to the longitudinal axis L and has an end point not located on the longitudinal axis L.
  • Another end of the second side 941g opposite to the longitudinal axis L is connected to the second peripheral face 911g.
  • the second angle 942g is located between the front conical face 92g and the shank 80g along the longitudinal axis L.
  • the end of the driving portion 90g opposite to the shank 80g includes a third end face 95g, a fourth end face 96g, a fifth end face 97g, and a sixth end face 98g.
  • the third end face 95g is connected to the third peripheral face 912g.
  • the third peripheral face 912g is contiguous to the second peripheral face 911g and is located on a side of the second peripheral face 911g opposite to the first peripheral face 91g.
  • the third end face 95g includes a third side 951g and a third angle 952g located outside of the third side 951g.
  • the third side 951g is located on the front conical face 92g.
  • An end of the third side 951g is adjacent to the longitudinal axis L and has an end point not located on the longitudinal axis L. Another end of the third side 951g opposite to the longitudinal axis L is connected to the third peripheral face 912g.
  • the third angle 952g is located between the front conical face 92g and the shank 80g along the longitudinal axis L.
  • the fourth end face 96g is connected to the fourth peripheral face 913g.
  • the fourth peripheral face 913g is contiguous to the third peripheral face 912g and is located on a side of the third peripheral face 912g opposite to the second peripheral face 911g.
  • the fourth peripheral face 913g is parallel to the first peripheral face 91g.
  • the fourth end face 96g includes a fourth side 961g and a fourth angle 962g located outside of the fourth side 961g.
  • the fourth side 961g is located on the front conical face 92g.
  • An end of the fourth side 961g is adjacent to the longitudinal axis L and has an end point not located on the longitudinal axis L.
  • Another end of the fourth side 961g opposite to the longitudinal axis L is connected to the fourth peripheral face 913g.
  • the fourth angle 962g is located between the front conical face 92g and the shank 80g along the longitudinal axis L.
  • the fifth end face 97g is connected to the fifth peripheral face 914g.
  • the fifth peripheral face 914g is contiguous to the fourth peripheral face 913g and is located on a side of the fourth peripheral face 913g opposite to the third peripheral face 912g.
  • the fifth peripheral face 914g is parallel to the second peripheral face 911g.
  • the fifth end face 97g includes a fifth side 971g and a fifth angle 972g located outside of the fifth side 971g.
  • the fifth side 971g is located on the front conical face 92g.
  • An end of the fifth side 971g is adjacent to the longitudinal axis L and has an end point not located on the longitudinal axis L.
  • Another end of the fifth side 971g opposite to the longitudinal axis L is connected to the fifth peripheral face 914g.
  • the fifth angle 972g is located between the front conical face 92g and the shank 80g along the longitudinal axis L.
  • the sixth end face 98g is connected to the sixth peripheral face 915g.
  • the sixth peripheral face 915g is located between the first peripheral face 91g and the fifth peripheral face 914g.
  • the sixth peripheral face 915g is parallel to the third peripheral face 912g.
  • the sixth end face 98g includes a sixth side 981g and a sixth angle 982g located outside of the sixth side 981g.
  • the sixth side 981g is located on the front conical face 92g.
  • An end of the sixth side 981g is adjacent to the longitudinal axis L and has an end point not located on the longitudinal axis L.
  • Another end of the sixth side 981g opposite to the longitudinal axis L is connected to the sixth peripheral face 915g.
  • the sixth angle 982g is located between the front conical face 92g and the shank 80g along the longitudinal axis L.
  • the third end face 95g is connected to a second driving face 953g extending in a direction parallel to the longitudinal axis L.
  • the second driving face 953g is connected to the third angle 952g.
  • the second driving face 953g does not intersect with the longitudinal axis L.
  • a side of the second driving face 953g distant to the third end face 95g is located on the front conical face 92g.
  • the fifth end face 97g is connected to a third driving face 973g extending in a direction parallel to the longitudinal axis L.
  • the third driving face 973g is connected to the fifth angle 972g.
  • the third driving face 973g does not intersect with the longitudinal axis L.
  • a side of the third driving face 973g distant to the fifth end face 97g is located on the front conical face 92g.
  • the second end face 94g is connected to a fourth driving face 943g extending in a direction parallel to the longitudinal axis L.
  • the fourth driving face 943g is connected to the second angle 942g.
  • the fourth driving face 943g does not intersect with the longitudinal axis L.
  • a side of the fourth driving face 943g distant to the second end face 94g is located on the front conical face 92g.
  • the fourth end face 96g is connected to a fifth driving face 963g extending in a direction parallel to the longitudinal axis L.
  • the fifth driving face 963g is connected to the fourth angle 962g.
  • the fifth driving face 963g does not intersect with the longitudinal axis L.
  • a side of the fifth driving face 963g distant to the fourth end face 96g is located on the front conical face 92g.
  • the sixth end face 98g is connected to a sixth driving face 983g extending in a direction parallel to the longitudinal axis L.
  • the sixth driving face 983g is connected to the sixth angle 982g.
  • the sixth driving face 983g does not intersect with the longitudinal axis L.
  • a side of the sixth driving face 983g distant to the sixth end face 98g is located on the front conical face 92g.
  • the second end face 94g is located on a side of the first driving face 933g opposite to the first end face 93g and does not intersect with the first driving face 933g.
  • the second side 941g is located on a side of the second end face 94g adjacent to the first driving face 933g.
  • the fourth end face 96g is located on a side of the second driving face 953g opposite to the third end face 95g and does not intersect with the second driving face 953g.
  • the fourth side 961g is located on a side of the fourth end face 96g adjacent to the second driving face 953g.
  • the sixth end face 98g is located on a side of the third driving face 973g opposite to the fifth end face 97g and does not intersect with the third driving face 973g.
  • the sixth side 981g is located on a side of the sixth end face 98g adjacent to the third driving face 973g.
  • the third end face 95g is located on a side of the fourth driving face 943g opposite to the first end face 93g and does not intersect with the fourth driving face 943g.
  • the third side 951g is located on a side of the third end face 95g adjacent to the fourth driving face 943g.
  • the fifth end face 97g is located on a side of the fifth driving face 963g opposite to the fourth end face 96g and does not intersect with the fifth driving face 963g.
  • the fifth side 971g is located on a side of the fifth end face 97g adjacent to the fifth driving face 963g.
  • the first end face 93g is located on a side of the sixth driving face 983g opposite to the sixth end face 98g and does not intersect with the sixth driving face 983g.
  • the first side 931g is located on a side of the first end face 93g adjacent to the sixth driving face 983g.
  • Each of the first, second, third, fourth, fifth, and sixth end faces 93g-98g is a slant face not perpendicular to the longitudinal axis.
  • the end of the driving portion 90g opposite to the shank 80g has a front face 99g.
  • the front face 99g is a circular face orthogonal to the longitudinal axis L and centered at the longitudinal axis L.
  • the front conical face 92g surrounds the front face 99g.
  • the present invention includes the following advantages:
EP21209320.7A 2020-11-19 2021-11-19 Rutschhemmende befestigungstreiber Withdrawn EP3995257A1 (de)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270418A (en) * 1979-12-12 1981-06-02 Helen I. Shephard Fluted tool
FR2585609A1 (fr) * 1985-08-05 1987-02-06 Tran Dinh Can Procede de vissage et de devissage d'une vis a l'aide d'un tourne-vis, et vis et tourne-vis a tete perfectionnee pour la mise en oeuvre du procede
US20140102264A1 (en) * 2008-07-31 2014-04-17 Arnold Umformtechnik Gmbh & Co. Kg Screw Drive Design
US20170282337A1 (en) * 2016-04-05 2017-10-05 Zest Ip Holdings, Llc Driver tool and method of use
US20190152033A1 (en) * 2016-04-27 2019-05-23 Grip Holdings Llc Fastener Extractor Device
TWI704982B (zh) * 2019-12-03 2020-09-21 鴻安國際興業有限公司 具有防滑功能的驅動工具

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270418A (en) * 1979-12-12 1981-06-02 Helen I. Shephard Fluted tool
FR2585609A1 (fr) * 1985-08-05 1987-02-06 Tran Dinh Can Procede de vissage et de devissage d'une vis a l'aide d'un tourne-vis, et vis et tourne-vis a tete perfectionnee pour la mise en oeuvre du procede
US20140102264A1 (en) * 2008-07-31 2014-04-17 Arnold Umformtechnik Gmbh & Co. Kg Screw Drive Design
US20170282337A1 (en) * 2016-04-05 2017-10-05 Zest Ip Holdings, Llc Driver tool and method of use
US20190152033A1 (en) * 2016-04-27 2019-05-23 Grip Holdings Llc Fastener Extractor Device
TWI704982B (zh) * 2019-12-03 2020-09-21 鴻安國際興業有限公司 具有防滑功能的驅動工具

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