EP0453976B1 - Schraubenzieherklinge - Google Patents

Schraubenzieherklinge Download PDF

Info

Publication number: EP0453976B1
Authority: EP; European Patent Office
Prior art keywords: screw; screwdriver; blade; width; head
Prior art date: 1990-04-24
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

EP91106288A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0453976A1 (de

Inventor

Ernst Zäch

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.)

ABB Asea Brown Boveri Ltd

ABB AB

Original Assignee

ABB Asea Brown Boveri Ltd

Asea Brown Boveri AB

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.)

1990-04-24

Filing date

1991-04-19

Publication date

1995-11-15

1991-04-19 Application filed by ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd

1991-10-30 Publication of EP0453976A1 publication Critical patent/EP0453976A1/de

1995-11-15 Application granted granted Critical

1995-11-15 Publication of EP0453976B1 publication Critical patent/EP0453976B1/de

2011-04-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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
- B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section

Definitions

the present invention relates to a screwdriver blade according to the preamble of claim 1.
an M 1.2 screw (metric thread) with an outer thread diameter of 1.2 mm
an M 12 screw has a slot width of 3 mm.
the required force transmission between screwdriver and slot should take place optimally when the screw is screwed in and loosened, and the screw heads should not be slashed out after a few uses, a whole set of no fewer than 11 individually graduated screwdrivers marked with sizes 00-9 according to VSM.
a screwdriver blade has become known from US Pat. No. 4,016,912, the broad side of which has a thickening. This thickening is geometrically very short, which is why such a screwdriver blade can cover only one slot width in practice. A wide range of different slot sizes cannot be grasped with the present screwdriver blade, whereby there is a potential deflection of the slot corners even with the underlying slot size.
the invention seeks to remedy this.
the invention is based on the object of providing a screwdriver blade of the type mentioned at the beginning, the blade geometry of which is able to detect a maximized range of screw sizes. It is a further object of the invention to optimally apply force when twisting and to ensure when loosening the recorded screw sizes.
the main advantage of the invention can be seen in the fact that at least the slotted-head screws with a thread diameter of M1.2 - M 12 can be screwed in and loosened with a single screwdriver blade, i.e. a single screwdriver can increase the screw size on the basis of this non-conclusive range, to replace a total of 11 different screwdrivers, i.e. the VSM sizes 00-9, without having to forego optimal force transmission during the winding process and loosening the screws.
Another advantage of the invention can be seen in the fact that the geometrical configuration of the blade shape of the screwdriver blade makes the feared slipping out of the slot shape impossible, in particular when screwing in with hand screwdrivers.
a further advantage of the invention results from the possibility that the screws can be slipped onto the screwdriver blade for a winding in hard-to-reach places, with which it is possible to carry out such a winding without the usual known magnetic or mechanical aids.
screwdriver blade can be used both in conventional hand-held screwdrivers with a handle part and also as an insert in the various designs of torque screwdrivers.
FIG. 1 shows an extract from a standard sheet for screws S with a metric thread.
the screws considered here have a cylinder head with a diameter a1 and a slot with a width n.
the characteristic values were taken from the standard sheet VSM 13159 and cover, for example, the area between the screws M1.6 to M10. It is known that this standard sheet is based on other continental European standards, for example the DIN standards, which is why it cannot be expected that country-specific screwdrivers should be provided. Nevertheless, in the near future a uniform European standard is to be expected anyway within the framework of a closer EC union. If, according to the task, a screwdriver blade is to be proposed that can cover the entire area ai, i.e.
the respective slot width is from 0.4 mm to 2.5 mm extends, on the other hand, that the screw head diameter a1 of the associated screws is between 3 mm and 16 mm. Accordingly, a screwdriver equipped with such a blade must have a shovel shape which can be used with both a slot width of 0.4 mm and a slot width of 2.5 mm, taking into account the different cylinder head diameters, such that that the twisting and loosening of the respective screws in the specified area does not damage and / or fray the original Cause slot geometry and prevents slipping out of the slot shape.
FIG. 3 shows the holistic profile shape of a screwdriver blade, on the basis of the profile shape determined according to FIG. 2.
the rectangular central part A is determined in each case according to the smallest screw to be grasped, ie according to its slot width n and screw head diameter a1.
the middle section whose blade geometry has a thickness A2 of 0.4 mm and a width A1 of 3 mm, is intended for an M 1.6 screw.
the geometry according to FIG. 3 is designed to provide a single-sided, straight blade surface in order to avoid the point-by-line force introduction between the screwdriver blade and the slot shape on all sides.
the detection of the remaining screws of the underlying area is achieved by the V-shaped thickening C1 and C2, which starts from the middle part, opposite to the straight blade surface.
the rhomboid profile surfaces of the thickenings C1 and C2 have a constant directional coefficient, which is 17.9 degrees in terms of angle for the underlying area.
screwdrivers can be provided for a narrower range than the screw range described above, i.e. for the size range 00-9, for example, 2 or 3 screwdriver blades can be used.
FIG. 4 and 5 show a three-dimensional representation of a screwdriver blade 1 according to the shovel shape according to FIG. 3, the blade in FIG. 5 being shown in use, as is intended to symbolize the position of the screw S.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Polishing Bodies And Polishing Tools (AREA)
Drilling Tools (AREA)
Connection Of Plates (AREA)

EP91106288A 1990-04-24 1991-04-19 Schraubenzieherklinge Expired - Lifetime EP0453976B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CH1380/90		1990-04-24
CH1380/90A CH683078A5 (de)	1990-04-24	1990-04-24	Schraubenzieherklinge.

Publications (2)

Publication Number	Publication Date
EP0453976A1 EP0453976A1 (de)	1991-10-30
EP0453976B1 true EP0453976B1 (de)	1995-11-15

Family

ID=4209080

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91106288A Expired - Lifetime EP0453976B1 (de)	1990-04-24	1991-04-19	Schraubenzieherklinge

Country Status (7)

Country	Link
EP (1)	EP0453976B1 (da)
AT (1)	ATE130235T1 (da)
CH (1)	CH683078A5 (da)
DE (1)	DE59106883D1 (da)
DK (1)	DK0453976T3 (da)
ES (1)	ES2080850T3 (da)
GR (1)	GR3018699T3 (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5269209A (en) *	1992-10-20	1993-12-14	Baker David R	Curvilinear drive screwdriver and screw
GB2386854A (en) *	2002-02-16	2003-10-01	Steven Broadbelt	Diamond Drive Screwdriver System

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR440585A (fr) *	1911-06-16	1912-07-13	Alfred H Eicken	Tournevis à lame double concave
GB101151A (da) *	1915-08-12	1917-03-29	Henry Cole William
US1476653A (en) *	1922-05-17	1923-12-04	Joseph R Stanton	Screw driver
US4016912A (en) *	1975-12-15	1977-04-12	St Amour Lionel	Screwdriver for slotted head screw
US4680995A (en) *	1986-02-24	1987-07-21	Naphs, Inc.	Screwdriver

1990
- 1990-04-24 CH CH1380/90A patent/CH683078A5/de not_active IP Right Cessation
1991
- 1991-04-19 AT AT91106288T patent/ATE130235T1/de not_active IP Right Cessation
- 1991-04-19 DK DK91106288.3T patent/DK0453976T3/da active
- 1991-04-19 DE DE59106883T patent/DE59106883D1/de not_active Expired - Fee Related
- 1991-04-19 ES ES91106288T patent/ES2080850T3/es not_active Expired - Lifetime
- 1991-04-19 EP EP91106288A patent/EP0453976B1/de not_active Expired - Lifetime
1996
- 1996-01-17 GR GR960400100T patent/GR3018699T3/el unknown

Also Published As

Publication number	Publication date
EP0453976A1 (de)	1991-10-30
CH683078A5 (de)	1994-01-14
ES2080850T3 (es)	1996-02-16
DK0453976T3 (da)	1996-04-09
DE59106883D1 (de)	1995-12-21
GR3018699T3 (en)	1996-04-30
ATE130235T1 (de)	1995-12-15

Legal Events

Date	Code	Title	Description
1991-09-13	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1991-10-30	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE
1992-06-10	17P	Request for examination filed	Effective date: 19920413
1993-10-20	17Q	First examination report despatched	Effective date: 19930907
1995-09-29	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-11-15	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE
1995-11-15	REF	Corresponds to:	Ref document number: 130235 Country of ref document: AT Date of ref document: 19951215 Kind code of ref document: T
1995-12-21	REF	Corresponds to:	Ref document number: 59106883 Country of ref document: DE Date of ref document: 19951221
1996-01-12	ITF	It: translation for a ep patent filed
1996-02-09	ET	Fr: translation filed
1996-02-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2080850 Country of ref document: ES Kind code of ref document: T3
1996-02-21	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19960122
1996-03-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19960313 Year of fee payment: 6
1996-03-18	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19960318 Year of fee payment: 6 Ref country code: BE Payment date: 19960318 Year of fee payment: 6
1996-03-21	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19960321 Year of fee payment: 6 Ref country code: DK Payment date: 19960321 Year of fee payment: 6
1996-03-22	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19960322 Year of fee payment: 6
1996-03-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19960328 Year of fee payment: 6
1996-03-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GR Payment date: 19960329 Year of fee payment: 6
1996-03-29	REG	Reference to a national code	Ref country code: GR Ref legal event code: FG4A Free format text: 3018699
1996-04-01	NLR4	Nl: receipt of corrected translation in the netherlands language at the initiative of the proprietor of the patent
1996-04-09	REG	Reference to a national code	Ref country code: DK Ref legal event code: T3
1996-04-20	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19960420 Year of fee payment: 6
1996-04-23	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: ES Payment date: 19960423 Year of fee payment: 6
1996-09-20	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1996-09-20	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1996-11-06	26N	No opposition filed
1997-04-19	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19970419 Ref country code: DK Effective date: 19970419 Ref country code: AT Effective date: 19970419
1997-04-19	REG	Reference to a national code	Ref country code: DK Ref legal event code: EBP
1997-04-20	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19970420
1997-04-21	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19970421
1997-04-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19970430
1997-10-31	BERE	Be: lapsed	Owner name: ASEA BROWN BOVERI A.G. Effective date: 19970430
1997-10-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19971031
1997-11-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19971101
1997-11-28	REG	Reference to a national code	Ref country code: GR Ref legal event code: MM2A Free format text: 3018699
1997-12-10	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19970419
1997-12-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971231
1998-01-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980101
1998-01-05	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee	Effective date: 19971101
1998-01-19	EUG	Se: european patent has lapsed	Ref document number: 91106288.3
1998-02-27	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
1999-05-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FD2A Effective date: 19990405
2002-06-14	REG	Reference to a national code	Ref country code: CH Ref legal event code: PFA Free format text: ASEA BROWN BOVERI AG TRANSFER- ABB SCHWEIZ HOLDING AG Ref country code: CH Ref legal event code: NV Representative=s name: ABB SCHWEIZ AG INTELLECTUAL PROPERTY (CH-LC/IP)
2004-04-02	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 20040402 Year of fee payment: 14
2005-04-19	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050419
2005-04-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050430
2005-12-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL

Publication	Publication Date	Title
EP0039387B1 (de)	1984-01-18	Schraubendreher mit auswechselbarer Klinge
DE3328142A1 (de)	1985-02-21	Konstruktion aus profilstaeben
DE29907969U1 (de)	1999-08-12	Schraubenschlüssel
EP1129297A1 (de)	2001-09-05	Korrosionsfeste schraube mit schneideinsatz
EP0939235A1 (de)	1999-09-01	Schraube
EP0810377A1 (de)	1997-12-03	Schraubverbindung zum Verbinden von zwei Profilen
DE3436870C1 (de)	1986-05-15	Luftumspülte Wendestange für Rotationsdruckmaschinen
DE2812502C2 (da)	1987-12-10
EP0054913A2 (de)	1982-06-30	Bohrwerkzeug
EP0453976B1 (de)	1995-11-15	Schraubenzieherklinge
WO2006034912A1 (de)	2006-04-06	Bohrwerkzeug mit einem als platte oder kopf ausgebildeten schneidelement
DE19541786B4 (de)	2004-08-19	Steckschlüsseleinsatz
DE2923903C2 (da)	1988-01-14
EP0486816A1 (de)	1992-05-27	Stapelbarer Abstandhalter zur Bestimmung des Abstands zwischen zwei zusammenpressbaren Wandungen
DE9400780U1 (de)	1994-03-10	Schraubendrehereinsatz für Kreuzschlitzschrauben
DE2931517A1 (de)	1981-02-05	Verbindungsvorrichtung zur herstellung einer werkstueckspannvorrichtung unter verwendung von schraubzwingen
DE3605363C2 (da)	1989-02-16
EP0442511A2 (de)	1991-08-21	Innenbuchsensechskantschlüssel
DE102007031904B4 (de)	2012-01-26	Schneid- und/oder Ritzwerkzeug
DE3540109A1 (de)	1986-07-17	Schraubverbindung an einem ausdrehwerkzeug und dessen adapter
DE29603258U1 (de)	1996-08-01	Metallprofil für die Bildung von Rahmenwerken mit Eckverbindungen
WO2001007211A1 (de)	2001-02-01	Paarung eines maulschraubenschlüssels und eines schraubenkopfes oder einer mutter
DE9309116U1 (de)	1993-08-12	Stanzmesser
DE8816461U1 (de)	1989-09-21	Sicherheitsschraube
DE20010508U1 (de)	2000-10-19	Steckhülse