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EP0618045A1 - Bandschlüssel, insbesondere für Fahrzeug-Ölfilter - Google Patents

Bandschlüssel, insbesondere für Fahrzeug-Ölfilter Download PDF

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Publication number
EP0618045A1
EP0618045A1 EP94400649A EP94400649A EP0618045A1 EP 0618045 A1 EP0618045 A1 EP 0618045A1 EP 94400649 A EP94400649 A EP 94400649A EP 94400649 A EP94400649 A EP 94400649A EP 0618045 A1 EP0618045 A1 EP 0618045A1
Authority
EP
European Patent Office
Prior art keywords
handle
strap
threaded rod
wrench according
strap wrench
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.)
Granted
Application number
EP94400649A
Other languages
English (en)
French (fr)
Other versions
EP0618045B1 (de
Inventor
Monique Josette Scholl
Didier Paul Michel Girardon
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.)
Facom SA
Original Assignee
Facom SA
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 FR9303629A external-priority patent/FR2689432B1/fr
Priority claimed from FR9309134A external-priority patent/FR2707908B1/fr
Priority claimed from FR9309790A external-priority patent/FR2708503B1/fr
Application filed by Facom SA filed Critical Facom SA
Publication of EP0618045A1 publication Critical patent/EP0618045A1/de
Application granted granted Critical
Publication of EP0618045B1 publication Critical patent/EP0618045B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • B25B13/52—Chain or strap wrenches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the present invention relates to a strap key of the type comprising a strap, in particular a metal strap, the two ends of which are fixed to a threaded rod, a support body, and a threaded handle into which the threaded rod is screwed and which is rotatably mounted on the support body. It applies in particular to tools for unscrewing oil or diesel filters from motor vehicles.
  • the support body is a simple cylindrical tube. This is perhaps acceptable in the applications envisaged in this document, and with a strap made of a material such as leather, but would not allow smooth and precise operation in applications requiring a relatively rigid strap, in particular metallic, such as dismantling. oil filters.
  • the object of the invention is to provide a strap key which can be used reliably and conveniently in such applications.
  • the invention relates to a strap key of the aforementioned type, characterized in that the support body is constituted by a single piece provided with a central passage through which the threaded rod passes and the face of which support is cylindrical with an axis perpendicular to the axis of the handle.
  • the strap wrench for oil filter shown in Figures 1 to 11 essentially comprises a support body 1, a strap 2, a threaded rod 3 and a handle 4.
  • the body 1 is a molded metal piece externally comprising a cylindrical upper support face 5, with a longitudinal section (Figure 2) substantially circular, two end faces 6 flat and parallel, of generally triangular shape, connected respectively to the axial ends of the face 5, and two oblique lateral faces 7 connecting the faces 6.
  • the body At its base, the body comprises a tubular end piece 8 which ends internally by an annular radial shoulder 9 and which internally comprises, approximately at mid-height, a circular groove 10.
  • the body In its main part, above the shoulder 9, the body has a circular vertical bore 11 with the same vertical axis XX as the bore of the endpiece 8, but of a diameter much smaller, and opening into the latter.
  • the bore 11 On the side of each face 7, the bore 11 is bordered by a groove 12 of rectangular section of constant width, the bottom 13 of which gradually moves away from the axis XX, along a roughly circular convex curve (FIG. 2), starting from the shoulder 9.
  • the side walls 14 of these grooves are coplanar in pairs and parallel to the faces 6.
  • the upper face of this cross member also extends exactly this side 5.
  • the strap 2 is a metal strip having substantially the same width as the grooves 12 and the two ends of which are perforated.
  • the threaded rod 3 comprises an upper part of reduced thickness, defining two plane and parallel faces 16, pierced with an orifice 17.
  • the upper part of the threaded rod is split diametrically at 20 to receive the two adjoining ends of the strap, and the fixing is ensured by a suitable member, for example a split pin 21 which forcibly crosses a transverse passage 22 of the slotted part of the threaded rod as well as the holes of the strap.
  • a suitable member for example a split pin 21 which forcibly crosses a transverse passage 22 of the slotted part of the threaded rod as well as the holes of the strap.
  • the handle 4 comprises over almost its entire length a tapped blind bore 23 opening onto a flat, horizontal upper face 24 of the handle.
  • the handle has, from top to bottom: a smooth cylindrical part 25 combined with the bore of the end piece 8 and ending in a radial shoulder 26; a flange 27 adjacent to this shoulder; a short concave portion 28; a convex part 29 extending over most of the length of the handle; and a short concave part 30 shorter than the part 28.
  • Three radial housings for balls 31 loaded by springs are provided in the cylindrical part 25, and the lower end of the handle has a projection 32 in the form of a hexagon to allow actuation of the handle with a clamping tool.
  • the two ends of the strap are introduced from top to bottom into the body 1, on either side of the cross-member 15, until they emerge under the body. They are then fixed to the threaded rod 3, according to one or other of the variants of FIGS. 6 and 7.
  • the handle is then screwed onto the threaded rod, then the part 25 of the handle is fitted into the end piece 8. When this part 25 abuts against the shoulder 9, the balls 31 engage in the groove 10.
  • the handle is axially secured to the body 1 but can rotate relative to the latter, and the two parts of the strap located in the body 1 are well guided laterally by the faces 14 of the grooves 12, and are applied of themselves, due to their elasticity, on the curved faces 13.
  • the design of the tool described above makes it possible to obtain, for a given size of the tool, a long stroke of the threaded rod 3, which does not need to be of great length, and therefore a great range of useful diameters for the strap.
  • the tool does not have any rough edges which could catch on the neighboring parts of the oil filter or injure the operator, and the curve of the handle offers great convenience of use: the front and concave rear 28 and 30 allow a wedging of the fingers for tightening / loosening of the handle, while the main convex part 29 is housed in the palm of the hand to facilitate the unscrewing of the oil filter.
  • the threaded rod 3 When unscrewing the handle relative to the body, the threaded rod 3 can come out almost entirely from the handle and is guided by the bore 11. However, the strap is not likely to be lost, thanks to the presence of the crosspiece 15, against which abuts the rod 3 or the strap 2.
  • the cross member 15 is replaced by two aligned holes 15A in which a removable attached stopper is fixed such as a screw 15B with a countersunk head or a cotter pin 15C ( Figure 13).
  • a removable attached stopper such as a screw 15B with a countersunk head or a cotter pin 15C ( Figure 13). This allows the strap to be changed without removing the handle from the support body.
  • the tip 8 is shaped as male part and fits into a counter-bore of the handle provided at the entrance to the bore 23.
  • a split rod 31A is partially received in an external groove 10A of the end piece 8 and partially in an inner groove 10B of the counterbore of the handle, when the end piece 8 abuts against the bottom of this counterbore.
  • the device of Figures 14, 17, 18 and 19 mainly comprises a hose or strap 101 connected by its two ends to a threaded rod 104 which slides with a very small play in the molded body 102, drilled right through a hole smooth cylindrical 103, flared or grooved in the cutting plane of a rectangular shape on the filter side, to guide and facilitate the sliding of the hose 101.
  • the molded part 102 for example made of light alloy or plastic, mainly comprises a cylinder pierced right through with a smooth hole of diameter very slightly greater than the diameter of the threaded rod and two wings 108 and 109 allowing the creation of a partial cylindrical shape 110 having for axis and approximate diameter those of the filter, in order to follow the shape thereof to facilitate tightening.
  • the smooth hole 103 with a diameter very slightly greater than the diameter of the threaded rod 104 may consist of a particularly metallic insert 114, see Figure 17, which would have the advantage of reducing wear in the part 102 and reinforcing its rigidity .
  • the cylindrical handle 106 pierced right through with a tapped hole, is screwed onto the threaded rod 104 ensuring its traction and that of the hose 101 which can strongly tighten the encircled filter.
  • the threaded part can be attached (metal insert 113 for example), see Figure 17, which would have the advantage of reducing wear in the handle 106 and strengthening the rigidity.
  • the handle 106 can be knurled to increase the grip of the hand.
  • the handle 106 and the body 102 are end to end, without penetration, coaxial and centered by the threaded rod 104.
  • a circular groove 111 of a narrow width and a depth of 2 to 4 mm, is formed at the end of the part 106, on the part side 102, at a distance of approximately 3 to 5 mm.
  • a circular groove 112 of a small width and a depth of 2 to 4 mm is made at the end of the part 102, on the part side 106, at a distance of approximately 3 to 5 mm.
  • a circular ring 105 see FIG. 15 and FIG.
  • the ring 105 may be made of a sufficiently elastic material to be mounted by deformation or, if it is rigid, by strapping and welding.
  • the rod 104 is slotted at its end, flexible side, in a diametral plane, with a groove of approximately 1 to 2 mm in width, over a length of 8 to 15 mm, in order to allow the engagement of the two ends of the flexible 101 and their fixing, either by a rivet 103, or by welding or by any other economical and robust means.
  • a plug 107 screwed, forced, or glued into the tapped hole of the part 106, obstructs the end opposite to the part 102 to prevent any penetration into the device and also for the aesthetics and the safety of the operator.
  • the flexible 101 can be made up of a cable or a strip, thin, with a width of 5 to 12 mm, very resistant to traction and bending, and of good adhesion. To increase the adhesion, one can use either a coating, or the creation of asperities by striking or cutting.
  • the hose 101 is of variable length according to a range of filter diameters.
  • the filter diameters generally vary from 60 to 120 mm. Several beaches will be expected.
  • the equal diameters of the parts 102 and 106 must be chosen so as to allow a good grip, for example between 20 and 50 mm.
  • the length of the parts 102 and 106 end to end must also ensure good grip of the hand (total length greater than the width of one hand to form an acceptable handle) and will be a function of the engine space in the filter area and of its diameter.
  • the threaded rod 104 remains, in all positions, inside the device.
  • the length of the latter is equal to twice its diameter plus the length of the handle 106, and is much less than the length of the parts 102 and 106 placed end to end.
  • the threaded rod 104 can penetrate the device until it comes into contact with the plug 107.
  • the tapping right through the handle 106 promotes the stroke of the threaded rod 104.
  • the device of Figures 20 to 23 mainly comprises a hose or strap 201 connected by its two ends to a threaded rod 204 which slides (translation) with a radial clearance of the order of 2 mm in a cylindrical hole 213. This radial clearance facilitates the sliding of the flexible 201 for its penetration and its release.
  • the cylindrical hole 213 drilled right through in the molded body 202 is flared or grooved in the plane of the section of a rectangular shape on the filter side, to guide and facilitate the sliding of the hose 201.
  • the cylindrical hole 213 has a recess 212 , more or less long, handle side 206.
  • the diameter of this recess 212 is smaller than the outside diameter of the handle 206 (knurled part).
  • the body 202 comprises two wings 208, 209 allowing the creation of a partial cylindrical shape 210 having for axis and for approximate diameter that of the filter, in order to follow the shape to facilitate tightening.
  • the cylindrical handle 206 pierced right through a tapped hole, is screwed onto the threaded rod 204 ensuring its traction and that of the hose 201, which can tighten the encircled filter strongly.
  • the cylindrical handle 206 can be knurled.
  • the cylindrical handle 206 has a more or less long shoulder 211, which fits into the recess 212, of the H7 / g6 type.
  • a clearance 217 allows the plane contact between the handle 206 and the body 202 at the end of the latter.
  • the handle 206 is centered on the body 202.
  • the handle 206 and the body 202 are end to end, coaxial and centered by the penetration of the shouldered diameter 211 in the recess 212.
  • the handle 206 can rotate relative to the body 202 while remaining centered relative to it.
  • the handle 206 has only one degree of freedom relative to the body 202. namely a rotation of an axis collinear with the axis of the hole 213.
  • a semi-toric groove 215 is formed on the shoulder 211.
  • a cylindrical pin 205 with an axis orthogonal to the longitudinal axis of the handle 206 prevents the part 206 from separating from the body 202 ( Figure 23).
  • FIG. 22 Another solution can be envisaged (FIG. 22), by practicing a circular groove of triangular section on the shouldered diameter 211 and using a pointless headless screw 214 as a stop in translation of the handle 206 relative to the body 202.
  • the threaded rod 204 is slotted at its end, flexible side, in a diametral plane, with a groove of approximately 1 to 2 mm in width, over a length of 8 to 15 mm, in order to allow the engagement of the two ends. of the hose 201 and their fixing, either by a rivet 203, or by a weld or by any other economical and robust means.
  • a plug 207 screwed, forced or glued into the tapped hole of the part 206, obstructs the end opposite to the part 202 to prevent any penetration into the device and also for the aesthetics and the safety of the operator.
  • the threaded rod 204 remains, in all positions, inside the device.
  • the length of the latter is equal to once its diameter plus the length of the handle 206, for example, and much less than the length of the parts 202 and 206 placed end to end.
  • the threaded rod 204 can penetrate the device until it comes into contact with the plug 207.
  • the tapping right through the handle 206 favors the stroke of the threaded rod 204.
  • the lengths of the handle 206, of the shoulder 211, of the recess 212, of the molded body 202, of the threaded rod 204 can vary with the advantage of ensuring a greater or lesser stroke therefore a better adaptability to the different diameters of filters commonly sold.
  • the device according to the invention is compact and aesthetic, does not have any roughness and sharp angle that could injure the user, and can be adapted to all oil and diesel filters, cylindrical, oval or shaped any elliptical.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP19940400649 1993-03-25 1994-03-25 Bandschlüssel, insbesondere für Fahrzeug-Ölfilter Expired - Lifetime EP0618045B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FR9303629 1993-03-25
FR9303629A FR2689432B1 (fr) 1992-04-07 1993-03-25 Cle compacte pour filtre a huile ou a gazole.
FR9309134A FR2707908B1 (fr) 1993-07-23 1993-07-23 Clé à sangle, notamment pour filtre à huile de véhicule automobile.
FR9309134 1993-07-23
FR9309790A FR2708503B1 (fr) 1993-08-04 1993-08-04 Clé à filtre à huile.
FR9309790 1993-08-04

Publications (2)

Publication Number Publication Date
EP0618045A1 true EP0618045A1 (de) 1994-10-05
EP0618045B1 EP0618045B1 (de) 1999-01-07

Family

ID=27252724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940400649 Expired - Lifetime EP0618045B1 (de) 1993-03-25 1994-03-25 Bandschlüssel, insbesondere für Fahrzeug-Ölfilter

Country Status (2)

Country Link
EP (1) EP0618045B1 (de)
DE (1) DE69415703T2 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962286A2 (de) * 1998-06-05 1999-12-08 Facom Unidirektionales Band-Spannwerkzeug
FR2779372A1 (fr) * 1998-06-05 1999-12-10 Facom Cle a sangle a effet cliquet
US6789450B1 (en) 2001-07-11 2004-09-14 Leon Helfet Manually operated strap wrench for turning generally cylindrical objects
US7155999B1 (en) 2004-10-01 2007-01-02 Leon Helfet Strap wrench for gripping and turning generally cylindrical objects
US7493719B2 (en) * 2003-07-31 2009-02-24 Lackey George C Apparatus and method for supporting a firearm
US7565762B2 (en) 2003-07-31 2009-07-28 Lackey George C Apparatus and method for supporting a firearm
WO2011073574A1 (fr) * 2009-12-18 2011-06-23 Stanley Works (Europe) Gmbh Poignée pour une clé à frapper
TWI580530B (zh) * 2015-08-04 2017-05-01 Plus Craft Industrial Co Ltd Oil wrench structure improved

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20711A (en) * 1858-06-29 Hing-clamp eob engravers
US1600541A (en) * 1925-04-27 1926-09-21 Louis Wallerstein Jar opener
US1828106A (en) * 1930-04-23 1931-10-20 Sylvio C Ertola Tool
US2498934A (en) * 1946-06-22 1950-02-28 Alton J Webb Flexible band jar cap remover
US3133463A (en) * 1960-12-27 1964-05-19 Ryan Aeronautical Co Synchro adjustment tool
FR1570027A (de) * 1968-04-25 1969-06-06
GB2098903A (en) * 1981-05-20 1982-12-01 Allen Timothy Fergus Dryden Band wrench

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20711A (en) * 1858-06-29 Hing-clamp eob engravers
US1600541A (en) * 1925-04-27 1926-09-21 Louis Wallerstein Jar opener
US1828106A (en) * 1930-04-23 1931-10-20 Sylvio C Ertola Tool
US2498934A (en) * 1946-06-22 1950-02-28 Alton J Webb Flexible band jar cap remover
US3133463A (en) * 1960-12-27 1964-05-19 Ryan Aeronautical Co Synchro adjustment tool
FR1570027A (de) * 1968-04-25 1969-06-06
GB2098903A (en) * 1981-05-20 1982-12-01 Allen Timothy Fergus Dryden Band wrench

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ARTS, POLITE, FINE,ETC. Vol. 18, page 503 & US-A-20711 A.D.1858 (T.R.HOPKINS) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962286A2 (de) * 1998-06-05 1999-12-08 Facom Unidirektionales Band-Spannwerkzeug
FR2779372A1 (fr) * 1998-06-05 1999-12-10 Facom Cle a sangle a effet cliquet
EP0962286A3 (de) * 1998-06-05 2000-11-15 Facom Unidirektionales Band-Spannwerkzeug
US6196090B1 (en) 1998-06-05 2001-03-06 Facom One-way drive strap wrench
US6789450B1 (en) 2001-07-11 2004-09-14 Leon Helfet Manually operated strap wrench for turning generally cylindrical objects
US7493719B2 (en) * 2003-07-31 2009-02-24 Lackey George C Apparatus and method for supporting a firearm
US7565762B2 (en) 2003-07-31 2009-07-28 Lackey George C Apparatus and method for supporting a firearm
US7155999B1 (en) 2004-10-01 2007-01-02 Leon Helfet Strap wrench for gripping and turning generally cylindrical objects
WO2011073574A1 (fr) * 2009-12-18 2011-06-23 Stanley Works (Europe) Gmbh Poignée pour une clé à frapper
TWI580530B (zh) * 2015-08-04 2017-05-01 Plus Craft Industrial Co Ltd Oil wrench structure improved

Also Published As

Publication number Publication date
EP0618045B1 (de) 1999-01-07
DE69415703D1 (de) 1999-02-18
DE69415703T2 (de) 1999-07-22

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