GB1441327A - Screwdriver operated by an internal combustiog engine - Google Patents

Screwdriver operated by an internal combustiog engine

Info

Publication number
GB1441327A
GB1441327A GB4381273A GB4381273A GB1441327A GB 1441327 A GB1441327 A GB 1441327A GB 4381273 A GB4381273 A GB 4381273A GB 4381273 A GB4381273 A GB 4381273A GB 1441327 A GB1441327 A GB 1441327A
Authority
GB
United Kingdom
Prior art keywords
drive
mass
shaft
sept
teeth
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
GB4381273A
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.)
NUOVA LAPI
Original Assignee
NUOVA LAPI
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 NUOVA LAPI filed Critical NUOVA LAPI
Publication of GB1441327A publication Critical patent/GB1441327A/en
Expired legal-status Critical Current

Links

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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

1441327 Power driven screw drivers L PRIMO and I CATTINI [trading as NUOVA LAPI] 18 Sept 1973 [23 Sept 1972] 43812/73 Heading B3N A power driven screwdriver comprises in combination an endothermic internal combustion engine 1, a mechanical transmission including a centrifugal friction clutch 2, 3, 4 and a drive reversing device 6, 7, and an inertial mass device 18 for torsionally driving an output spindle 24 and capable of providing torsional impulses. The drive reversing device comprises a sleeve 6 movable by a lever and having a gear 8 meshable either with one set of planetary gears 9 directly meshing with teeth 11 in a fixed housing, or with another set of planetary gears which drive through idler gears 110 also meshing with the teeth 11. The inertial mass device comprises the mass 18 rotationally connected to a drive shaft 16 through grooves 20 and 17 and a sphere 21. At and above a predetermined torque the mass 18 rotates relative the shaft 16 and compresses a spring 19 to disengage drive parts 23 from the output spindle 24. At this point the torque transmitted is reduced and the spring 19 urges the mass 18 back to forcibly engage the drive parts 23 and output shaft 24.
GB4381273A 1972-09-23 1973-09-18 Screwdriver operated by an internal combustiog engine Expired GB1441327A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT4691272A IT968263B (en) 1972-09-23 1972-09-23 INERTIAL SCREWDRIVER DEVICE OPERATED BY AN INTERNAL COMUSTION MOTOR

Publications (1)

Publication Number Publication Date
GB1441327A true GB1441327A (en) 1976-06-30

Family

ID=11260492

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4381273A Expired GB1441327A (en) 1972-09-23 1973-09-18 Screwdriver operated by an internal combustiog engine

Country Status (5)

Country Link
JP (1) JPS4971599A (en)
DE (1) DE2347707A1 (en)
FR (1) FR2200084B3 (en)
GB (1) GB1441327A (en)
IT (1) IT968263B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5566778U (en) * 1978-10-27 1980-05-08
US5836403A (en) * 1996-10-31 1998-11-17 Snap-On Technologies, Inc. Reversible high impact mechanism

Also Published As

Publication number Publication date
IT968263B (en) 1974-03-20
DE2347707A1 (en) 1974-06-20
JPS4971599A (en) 1974-07-10
FR2200084B3 (en) 1976-08-20
FR2200084A1 (en) 1974-04-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees