WO2011077360A1 - Dispositif limiteur de couple et capuchon pour une tête de tuyau de remplissage comprenant un tel dispositif - Google Patents

Dispositif limiteur de couple et capuchon pour une tête de tuyau de remplissage comprenant un tel dispositif Download PDF

Info

Publication number
WO2011077360A1
WO2011077360A1 PCT/IB2010/055960 IB2010055960W WO2011077360A1 WO 2011077360 A1 WO2011077360 A1 WO 2011077360A1 IB 2010055960 W IB2010055960 W IB 2010055960W WO 2011077360 A1 WO2011077360 A1 WO 2011077360A1
Authority
WO
WIPO (PCT)
Prior art keywords
finger
cap
torque
members
detents
Prior art date
Application number
PCT/IB2010/055960
Other languages
English (en)
Inventor
Jean-Philippe Bar
Original Assignee
I.T.W. De France
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 I.T.W. De France filed Critical I.T.W. De France
Publication of WO2011077360A1 publication Critical patent/WO2011077360A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/18—Freewheels or freewheel clutches with non-hinged detent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K15/0406—Filler caps for fuel tanks

Definitions

  • Torque limiting device and cap for a filler pipe head comprising such a device
  • the invention concerns caps for obturating a filler pipe head, in particular for the filling of a fuel tank, for example for vehicles, and more particularly the caps of this type which comprise a torque limiting device.
  • the invention also concerns torque limiting devices in general.
  • Caps of the aforementioned type comprise a cylindrical base adapted to obturate the filler pipe head and a top for gripping adapted to maneuver the base between an open position and a closed position of the cap in that filler pipe head.
  • the base comprises an interior space having a series of annularly disposed detents.
  • the top comprises a cylindrical barrel adapted to be partially inserted into the interior space of the base.
  • the top also comprises a finger slidably mounted on the barrel in a radial direction, and a spring disposed between the barrel and the finger to exert an elastic return force on that finger biasing it towards a position in which the finger projects to the exterior of the barrel.
  • the finger is adapted to be accommodated between two successive detents of the base to link the cap and the base in rotation, and thus to enable the base to be rotationally driven when the gripping top is rotated, so long as a torque less than a predetermined torque limit is applied between the top and the base.
  • the finger slides against the force exerted by the spring until the coupling between the finger and the series of detents ceases, thus rotationally disconnecting the top and the base.
  • This known cap has the drawback of comprising several parts to assemble to form a torque limiter, and more particularly on the top.
  • the invention is directed to providing a torque limiting device that is simple, convenient and economic.
  • the invention thus relates to a torque limiting device comprising:
  • - disengageable coupling means adapted to rotationally link the first and second members when a torque less than a predetermined torque limit is applied between those members in a determined direction of rotation, and to disengage the link between the members when a torque greater than the predetermined torque limit is applied between those members in the determined direction of rotation
  • those disengageable coupling means comprising a series of annularly disposed detents on the first member, and comprising an engagement mechanism on the second member, this engagement mechanism comprising a radially oriented moveable finger, and a spring for elastic return of the finger, which is adapted to be accommodated between two detents, each finger and each detent respectively comprising a first and a second inclined contact face forming ramps adapted to be in contact when a torque less than the predetermined torque limit is applied between the members in the determined direction of rotation,
  • the engagement mechanism further comprising an elastically deformable arcuate bridging member from which projects said finger, said arcuate bridging member and said finger being in one piece.
  • the elastically deformable arcuate bridging member merges into the second member via two ends of said elastically deformable arcuate bridging member.
  • the guide mechanism of the finger and the spring are produced from a single piece formed by the elastically deformable arcuate bridging member, which arcuate bridging member moreover forms a single piece with the finger.
  • the second member is a one-piece plastic molding.
  • each finger and each detent respectively comprises a third and a fourth contact face which are straight and adapted to be in contact when a torque is applied between the members in an opposite direction to the direction of rotation so as to rotationally link the first and second members.
  • the engagement mechanism comprises two said fingers.
  • the elastically deformable arcuate bridging member comprises two pillars that merge into the second member and an arch linking the two pillars.
  • the elastically deformable arcuate bridging member is preferably curved like the series of detents.
  • the device comprises two diametrically opposite engagement mechanisms.
  • the invention relates to a cap to put in place by rotating it in a filler pipe head, in particular for the filling of a fuel tank, for example for vehicles, comprising a torque limiting device as described above.
  • the first member is formed by a base adapted to obturate the filler pipe head
  • the second member is formed by a gripping top adapted to maneuver the base between an open position and a closed position of the cap in the filler pipe head
  • the top comprises a cylindrical barrel into which the elastically deformable arcuate bridging member merges.
  • the base comprises an interior space in which is disposed a crown comprising the series of detents, and this interior space is adapted to receive the barrel of the top at least partially.
  • FIG. 1 is front view of a cap in accordance with an embodiment of the invention and of a filler pipe head shown in cross-section;
  • FIG. 3 is a perspective view in the assembled state
  • FIG. 4 is the cross-section view on IV-IV of Figure 1 ;
  • FIG. 5 is an enlargement of a part of Figure 4.
  • Figures 1 and 2 illustrate a screw cap 1 , respectively in the assembled and dismantled states, for a filler pipe head 2 for the filling of a fuel tank (not shown), for example for vehicles (not shown).
  • This cap 1 comprises a gripping top 10, a base 30 and a fluid-tight seal 7.
  • the gripping top 10 comprises a gripping handle 1 1 for grasping the cap 1 in the hand, a cylindrical skirt 12, and two shoulders 13 and 14 extending on each side of the handle 1 1 towards the cylindrical skirt 12 to connect the skirt 12 to the handle 1 1 .
  • the top 10 comprises latching lugs 16 on an annular inner surface 17 of the skirt 12.
  • the top 10 further comprises a hollow cylindrical barrel 18 extending longitudinally on the opposite side to the handle 1 1 .
  • the barrel 18 comprises a free end 19 and has on a lateral wall 20 in the vicinity of that free end 19, two elastically deformable arcuate bridging members 22 disposed diametrically opposite each other.
  • Each elastically deformable arcuate bridging member 24 has two ends merging into the barrel 18.
  • each elastically deformable arcuate bridging member 22 comprises two pillars 23 merging into the lateral wall 20 of the barrel 18, and an arch 24 linking the two pillars 23 (see more particularly Figure 5).
  • a space is thus present between the arch 24 and the lateral wall 20 of the barrel 18.
  • the top 10 further comprises two fingers 25 which project from each arch 24, these fingers 25 being transversely oriented to the barrel 18.
  • Each finger 25 has the general shape of a trapezoidal tooth and has a face 26 inclined relative to the direction of the finger 25, and a straight face 27, in other words parallel to the direction of the finger 25, this inclined face 26 and straight face 27 being opposite faces.
  • the top 10 is a one-piece plastic molding.
  • the cap 1 further comprises a cylindrical base 30 comprising a lower portion 31 provided with several shoulders 32 in steps and an aperture 33.
  • the widest shoulder 32 joins to a threaded portion 35 having four recesses 36, visible in Figure 2.
  • the threaded portion 35 is divided into four sectors regularly spaced around the base 30, two successive sectors being separated by a recess 36.
  • the threaded portion 35 also joins to an annular groove 37 around the base 30.
  • This groove 37 joins to a collar 38 comprising four vent holes 39 regularly spaced on the periphery of the collar 38.
  • the base 30 further comprises an annular cavity forming an interior space 40, in which an annular crown 41 extends provided with a series of detents 42 extending transversely in the interior space 40.
  • the crown 41 joins to a cylindrical interior wall 45 of the base 30 by four connecting arms 44 (which can be better seen in Figure 4).
  • Each detent 42 has the general shape of a trapezoidal tooth and has an face 46 inclined relative to the direction of the detent 42, and a straight face 47, in other words parallel to the direction of the detent 42, this inclined face 46 and straight face 47 being opposite faces, as can be seen in Figure 4.
  • the filler pipe head 2 comprises a tubular body 3 comprising an aperture 4, a threaded portion 5, and an upper edge 6.
  • the annular fluid-tightn seal 7 ( Figure 2) is adapted to be positioned on the cap 1 , against the edge 6 of the filler pipe head 2.
  • the fluid-tight seal 7 has a curved profile adapted to engage in the groove 37 of the base 30.
  • This seal 7 provides fluid-tightness between the cap 1 and the edge 6 of the filler pipe head 2.
  • the skirt 12 of the top 10 covers the collar 38 of the base 30, as well as its groove 37 provided with the seal 7.
  • the collar 38 is locked against axial translation by the latching lugs 16 of the top 10.
  • the threaded portion 35 and lower portion 31 project from the top 10.
  • the barrel 18 of the top 10 is partially inserted into the interior space
  • each elastically deformable arcuate bridging member 22 is curved like the series of detents 42 on the crown 41 .
  • the fingers 25 of the elastically deformable arcuate bridging members 22 are accommodated in hollows formed between the successive detents 42 of the crown 41 .
  • vent holes 39 enable an air circuit to be created between the exterior of the cap 1 and the interior of the tank when the cap 1 is fixed to the filler pipe head 2.
  • the flow of air under pressure in the tank passes first of all via a vent valve (not represented) situated in the lower portion 31 of the base 30, then into the interior space 40 of that base 30 by a first zone comprising the elastically deformable arcuate bridging members 22 and the series of detents 42, then by a second zone in the vicinity of the seal 7, so that this stream of air under pressure lastly escapes to the outside via the holes 39.
  • a vent valve not represented
  • the stream of air at reduced pressure follows the opposite path.
  • the threaded portion 35 of the base is adapted to cooperate with the threaded portion 5 of the filler pipe head 2 to obturate it.
  • the cap 1 comprises an integrated torque limiter to prevent over- compressing and deteriorating the seal 7 which provides the fluid-tightness between the filler pipe head 2 and the cap 1 .
  • the fingers 25, which are radially oriented, are moveable against an elastic return force exerted by the arcuate bridging members 22 on which they are situated.
  • each arcuate bridging member 22 In resting position, the pillars 23 and the arch 24 of each arcuate bridging member 22 are not deformed.
  • each finger 25 of each arcuate bridging member 22 comes to bear against the inclined face 46 of a detent 42 of the crown 41 , and the top 10 rotationally drives the base 30 in the locking direction of the cap 1 , until the cap 1 attains its closed position in the filler pipe head 2.
  • the fingers 25 are engaged in the hollow between the detents 42, and the arcuate bridging members 22 are still in their resting position, in which the pillars 23 and the arch 24 do not deform, or almost not so.
  • the inclined faces 26 and 46 forming ramps cause the arcuate bridging member 22 to be subjected to a force tending to bring it towards the barrel 18, which force becomes greater than the deformation threshold of the arcuate bridging member 22, such that arcuate bridging member 22 deforms and the teeth 23 slide over the detents 42, the top 10 thus being able to turn without causing the base 30 to turn.
  • the arcuate bridging member 25 When the torque ceases or becomes less than the limit torque, the arcuate bridging member 25 returns to its original shape, which enables the fingers 25 to re-engage in the hollows between the following detents 42.
  • each finger 25 of each arcuate bridging member 22 abuts against the straight face 47 of a detent 42 of the crown 41 , and the top 10 rotationally drives the base 30 in the unlocking direction of the cap 1 , until the cap 1 attains its open position, and can be removed from the filler pipe head 2.
  • the top 10 comprises two fingers 25 which project from each arcuate bridging member 22 to provide robustness for the torque limiter, produced from plastic material.
  • the top may only comprise a single finger which projects from a single arcuate bridging member.
  • the base comprises a continuous threaded portion around said base, in other words the base does not comprise the recesses 36 visible in Figure 2.
  • the base does not comprise any connecting arm between the crown and the cylindrical wall of the base.
  • the base does not comprise any vent hole, nor aperture of the type of aperture 33 visible in Figure 2.
  • cap and the filler pipe head may be fixed together via a bayonet type mounting instead of screwing.
  • the cap may be locked into the filler pipe head.
  • a lock cylinder is accommodated in the barrel of the top.
  • the cap cannot be locked in the filler pipe head.
  • the torque limiting device (arcuate bridging member such as 22, teeth such as 25 and detents such as 42) forms part of an assembly different from a cap, for example a screwdriver head.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne un dispositif limiteur de couple comprenant : un premier élément ; un second élément ; et un moyen d'accouplement débrayable comprenant une série d'encliquetages disposés en configuration annulaire (42) sur le premier élément (30), et comprenant un mécanisme de mise en prise sur le second élément, ce mécanisme de mise en prise comprenant un doigt mobile orienté radialement (25), et un ressort pour un rappel élastique du doigt (25), qui est conçu pour être reçu entre deux encliquetages (42), chaque doigt (25) et chaque encliquetage (42) comprenant respectivement une première et une seconde face de contact inclinée (26, 46) formant des rampes conçues pour être en contact lorsqu'un couple inférieur à la limite de couple prédéterminée est appliqué entre les éléments dans la direction de rotation (V) déterminée, le mécanisme de mise en prise comprenant un élément de liaison en forme d'arc élastiquement déformable (22) à partir duquel fait saillie ledit doigt (25), ledit élément de liaison en forme d'arc (22) et ledit doigt (25) étant en un seul bloc.
PCT/IB2010/055960 2009-12-21 2010-12-20 Dispositif limiteur de couple et capuchon pour une tête de tuyau de remplissage comprenant un tel dispositif WO2011077360A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0959333 2009-12-21
FR0959333A FR2954428B1 (fr) 2009-12-21 2009-12-21 Dispositif limiteur de couple et bouchon pour tete de tubulure comportant un tel dispositif

Publications (1)

Publication Number Publication Date
WO2011077360A1 true WO2011077360A1 (fr) 2011-06-30

Family

ID=42335241

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/055960 WO2011077360A1 (fr) 2009-12-21 2010-12-20 Dispositif limiteur de couple et capuchon pour une tête de tuyau de remplissage comprenant un tel dispositif

Country Status (2)

Country Link
FR (1) FR2954428B1 (fr)
WO (1) WO2011077360A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013223948A1 (de) * 2013-11-22 2015-05-28 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug mit einer Abdeckung für eine Ladekupplung
WO2016166195A1 (fr) * 2015-04-14 2016-10-20 Reutter Gmbh Bouchon de réservoir, en particulier fermeture pour réduction catalytique sélective (scr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016201799A1 (de) * 2016-02-05 2017-08-10 Bayerische Motoren Werke Aktiengesellschaft Behälterverschluss mit Ratschenfunktion

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183173A (en) * 1991-07-29 1993-02-02 Epicor Industries, Inc. Auto venting fuel cap
US20020139801A1 (en) * 2001-03-30 2002-10-03 Hiroyuki Hagano Tank cap
US20030102314A1 (en) * 2000-06-07 2003-06-05 Hiroyuki Hagano Tank cap and tank cap apparatus
EP1384748A2 (fr) * 2002-07-22 2004-01-28 Toyoda Gosei Co., Ltd. Elément en résine et son procédé de fabrication
EP1810864A1 (fr) * 2006-01-20 2007-07-25 Bemis Manufacturing Company Chapeau d'essieu

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183173A (en) * 1991-07-29 1993-02-02 Epicor Industries, Inc. Auto venting fuel cap
US20030102314A1 (en) * 2000-06-07 2003-06-05 Hiroyuki Hagano Tank cap and tank cap apparatus
US20020139801A1 (en) * 2001-03-30 2002-10-03 Hiroyuki Hagano Tank cap
EP1384748A2 (fr) * 2002-07-22 2004-01-28 Toyoda Gosei Co., Ltd. Elément en résine et son procédé de fabrication
EP1810864A1 (fr) * 2006-01-20 2007-07-25 Bemis Manufacturing Company Chapeau d'essieu

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013223948A1 (de) * 2013-11-22 2015-05-28 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug mit einer Abdeckung für eine Ladekupplung
WO2016166195A1 (fr) * 2015-04-14 2016-10-20 Reutter Gmbh Bouchon de réservoir, en particulier fermeture pour réduction catalytique sélective (scr)
US10654356B2 (en) 2015-04-14 2020-05-19 Reutter Gmbh Tank cover, in particular an SCR closure

Also Published As

Publication number Publication date
FR2954428A1 (fr) 2011-06-24
FR2954428B1 (fr) 2012-04-20

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