EP2773828B1 - Cover and motor block provided with said cover - Google Patents
Cover and motor block provided with said cover Download PDFInfo
- Publication number
- EP2773828B1 EP2773828B1 EP12778310.8A EP12778310A EP2773828B1 EP 2773828 B1 EP2773828 B1 EP 2773828B1 EP 12778310 A EP12778310 A EP 12778310A EP 2773828 B1 EP2773828 B1 EP 2773828B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- latch
- cover
- pivot axis
- locked
- shell
- 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.)
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Links
- 238000005452 bending Methods 0.000 claims description 11
- 230000000295 complement effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000004873 anchoring Methods 0.000 description 6
- 235000005921 Cynara humilis Nutrition 0.000 description 4
- 240000002228 Cynara humilis Species 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C3/00—Fastening devices with bolts moving pivotally or rotatively
- E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
- E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
- E05C3/047—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis parallel to the surface on which the fastener is mounted
- E05C3/048—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis parallel to the surface on which the fastener is mounted parallel to the wing edge
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2007—Securing, deadlocking or "dogging" the bolt in the fastening position
- E05B17/2019—Securing, deadlocking or "dogging" the bolt in the fastening position elastic, i.e. the dog or detent being formed or carried by a spring
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/006—Locks or fastenings for special use for covers or panels
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/06—Other devices specially designed for securing wings, e.g. with suction cups in which the securing part if formed or carried by a spring and moves only by distortion of the spring, e.g. snaps
Definitions
- the invention relates generally to a lid comprising a shell provided with a first locking edge intended to bear on the edge of an orifice provided in a support for closing it with the shell, the lid comprising at least one lock provided with a second locking edge and arranged to be movable about a pivot axis between an "unlocked” position in which it does not hinder the mobility of the cover relative to the support and a “locked” position in which the second locking edge cooperates with the first locking edge to lock the cover on the support, the cover further comprising locking means of the lock in the "locked” position provided with at least one fixed stop and a heel of flexible locking, one being provided on the hull the other on the lock and able to cooperate so as to prevent the passage without bending of the locking heel from the "unlocked” position to the "b” position latched “and to latch the latch into the” locked "position.
- the invention also relates to an engine block for a motor vehicle, the engine block comprising at least one orifice in which is housed at least one electronic sensor and closed by a cover.
- This type of cover is commonly used, in particular to limit access to the interior of an orifice, for example to protect equipment housed in this orifice, such as in particular electronic sensors.
- the support is for example the engine block of a motor vehicle which may comprise orifices each adapted to receive an electronic sensor for example for controlling the engine speed of the motor vehicle.
- this sensor must be protected from the external environment of the engine.
- This sensor must also be easily accessible to allow maintenance and control of the engine.
- the cover must be able to be put in place without tools, with simple gestures, have a reliable maintenance over time, while satisfactorily closing the orifice, then can be removed instinctively without tools and put back into action. place easily repeatedly.
- the publication FR 2 645 834 discloses a box provided with a lid hinged and having locks for securing the closure of the box.
- the locks are pivotally mounted by means of journals carried by bearings integral with the cover.
- Each latch has a star shape with three branches extending from the trunnion.
- a first rigid branch forms a hook through a first opening in the cover.
- a second rigid branch forms a handle for manipulating the lock.
- the third leg is elastically deformable and bears on the top of the lid.
- the hook clings to the wall surrounding the second opening so as to keep the closed lid closed on the box.
- This retractable latch cover is bulky and difficult to unlock. Indeed, each lock requires to be individually unlocked by independent pivoting. In addition, this retractable latch cover is made of several parts requiring an assembly step and making it less reliable for use in particular because of risk of dislodging a part relative to another. This lock is more bulky.
- This device comprises a base provided with four spaced side walls defining a quadrangular structure.
- the upper edge of a first wall is connected to a pivoting latch by a film hinge permitting its pivoting.
- This latch has a groove adapted to receive the passage of a sheath.
- the second wall provided opposite the first wall has an opening adapted to receive the end of the latch to lock it in the closed position, this opening being delimited by an upper cross member.
- the latch has a length greater than the distance separating the first and second walls.
- the introduction of the latch in the opening of the second wall is obtained by elastic bending of the second wall to cross the upper rail.
- the latch is also provided with a spout bearing, in the closed position of the latch, on a stop of the first wall. This support reduces the stresses on the film hinge.
- the third and fourth walls are provided with cutouts for the passage of the sheath, provided on either side of the base. Unlocking and opening the latch to release the sheath are obtained by elastic bending of the second wall. The locking and unlocking of this latch require significant efforts that strongly urge the base, including bending.
- This device is not very resistant and intended to be opened and closed a limited number of times. Moreover, due to the nature of the gestures imposed by its use, this device is not very ergonomic. This lock is more bulky.
- a hood latch comprising an anchoring element intended to be housed in the orifice of a support in which it is held by means of flexible lateral tabs provided on the lateral walls of the anchoring element and bearing both sides under the edges of the orifice.
- This cover latch also comprises a hook connected to the body of the anchoring element by a flexible tongue, this hook being adapted, under the effect of the deformation of the flexible tab, to cooperate with a workpiece to be locked relative to the support.
- the anchoring element is traversed by a housing adapted to receive a latch pivoting relative to a pivot axis defined relative to the body of the anchor element.
- the latch is coupled to the block by a cam and has a bearing zone adapted to cooperate with the flexible tongue to deform.
- the flexible tongue is not stressed and the hook is open.
- the support zone deforms the flexible tongue, causing the hook to close on the part to be blocked.
- the latch is also provided with lateral pins adapted to engage by deformation in orifices provided in the side walls of the anchoring element so as to define different positions of the latch. Maintaining the lock in each of its positions is however unreliable. Indeed, the unlocking of the lock to move from one position to another is obtained by forcing the passage of the lateral pins outside the orifices. This unlocking can be caused accidentally.
- the object of the invention is to overcome these disadvantages by providing a cover easy to manufacture, compact able to be locked and unlocked by simple gestures instinctively and repeatedly, the locking and unlocking do not impose the mechanical stress that elements directly concerned to avoid premature deterioration of the cover, the elements involved in the locking and unlocking are solicited only during the locking and unlocking respectively to improve the life of the cover, the cover can be securely fixed to the support to effectively protect the area under the lid.
- the subject of the invention is a lid comprising a shell provided with a first locking edge intended to bear on the edge of an orifice provided in a support for closing it with the shell, the lid comprising at least one less a latch provided with a second locking edge and arranged to be movable about a pivot axis between an "unlocked” position in which it does not hinder the mobility of the cover relative to the support and a “locked” position in which the second locking edge cooperates with the first locking edge to lock the cover on the support, the cover further comprising locking means of the lock in the "locked” position provided with at least one fixed stop and of a flexible locking heel, one provided on the shell and the other on the latch and adapted to cooperate so as to prevent the passage without bending of the locking heel from the "unlocked” position to the "locked” position and to lock by clamping the lock in the "locked” position, characterized in that the locking heel is oriented perpendicularly to the pivot axis and laterally flexible, parallel to the pivot axis, in that
- the locking heel is oriented perpendicularly to the pivot axis, it is thus biased in bending only punctually during the passage of the fixed stop. As a result, it is less likely to be damaged.
- the unlocking wing allows to unlock the lock in a simple and ergonomic way, with a measured effort to the fair, this effort being applied only on the unlocking fin.
- the unlocking fin is also easily accessible which simplifies the use of the lid, in particular its unlocking.
- the unlocking obtained by a lateral movement, parallel to the pivot axis, makes it possible to perform the unlocking movements instinctively.
- the invention also relates to an engine block for a motor vehicle, the engine block comprising at least one orifice in which is housed at least one electronic sensor and closed by a cover, said engine block comprising at least one cover as described above the orifice to close the orifice and protect the electronic sensor.
- the cover 1 is intended to be used to close an orifice 101 provided in a support 100, such as for example an engine block.
- This lid 1 comprises a shell 2, fixing lugs 3 and a lock 4.
- the shell 2 comprises a generally planar plate 20 from which extends a skirt 21 substantially perpendicular to the plate 20 and intended to be housed in the orifice 101.
- the plate 20 has a generally trapezoidal shape.
- the plate 20 has a cavity oriented towards the bottom and forming a relief 22 on its upper face and a housing (not visible) under its underside. This cavity is adapted to receive for example the relief of a sensor (not shown) provided in the housing.
- the housing opens laterally from the plate 20 through a passage 24 open downwards and adapted to receive for example a power supply cable and / or communication connecting the speed sensor of the engine to an electronic entity of the motor vehicle. This passage 24 is delimited in the lower part by a springback 25 for gripping the cable.
- the skirt 21 is thus interrupted opposite this passage 24 and opposite the lock described below.
- the skirt 21 ensures the correct positioning of the cover 1 relative to the port 101.
- the cover 1 may have any other suitable form.
- the cover 1 comprises a flange defining a first locking edge 23 provided at the junction between the skirt 21 and the plate 20.
- This first locking edge 23 extends over the periphery of the shell 2 and defines a support plane P (schematized on Figures 1, 2 and 4 ) of the shell 2 on the edges of the hole 101 of the support 100.
- the prominence of this first locking edge 23 is provided so that it bears above the edges of the orifice 101 when the skirt 21 is located in the orifice 101.
- This first locking edge 23 may be continuous or discontinuous.
- the skirt 21 also carries two fastening lugs 3 provided on the edge of the shell 2 opposite that carrying the latch 4.
- These fastening lugs 3 extend substantially parallel to the support plane P, in a separate plane to the support plane P so as to define a fixed engagement zone adapted to receive edges of the hole 101 of the support 100 between the fixing lugs 3 and the first locking edge 23.
- the cover 1 may be presented inclined in the orifice 101 so that one of the edges of the orifice 101 is engaged between the fixing lugs 3 and the first locking edge 23, before being tilted in support over the entire length of the first locking edge 23. It is understood that the cover may have several locks on one or more sides and / or be free of fixing lug.
- the shell 20 has an opening 5, tangent to the edge of the shell 20 opposite that carrying the fixing lugs 3.
- the opening 5 is closed laterally by a pivot axis C formed by two coaxial torsion bars 6, substantially similar between they, extending on either side of the latch 4.
- the opening 5 has a substantially rectangular shape.
- the edge of the opening 5, opposite to the pivot axis C comprises two recesses each defining a clearance 50 and a fixed stop 51 whose functions are explained below.
- the recesses are provided in the pivoting path of the latch 4 so that the fixed stops 51 are separated by the clearances 50.
- the clearances can be provided outside the fixed stops, or the stops fixed and clearances may be interposed.
- each fixed stop 51 defines a shape V tangent to the edges of the opening 5 and whose branches facing each other have a inclined plane 52 or rounded whose function is explained below.
- the recesses are separated, on the upper face of the shell 20, by a bulge 53 intended to form a first stop to limit the pivoting of the latch 4.
- the latch 4 comprises a pallet 40 of rectangular shape, substantially flat, adapted to receive the support of a finger of a user to be manually biased towards the opening 5 and rotate the latch 4.
- the pallet 40 may comprise grooves 49 (visible on the figure 1 ) limiting the sliding of the heel soliciting and stiffening.
- the latch 4 can thus be pivoted between an "unlocked” position in which it does not hinder the mobility of the cover 1 relative to the support 100 and a “locked” position in which it cooperates with the shell 20, in particular via fixing lugs 3 and the first locking edge 23, for locking the cover 1 on the support 100.
- This pallet 40 is directly tangential to the pivot axis C and situated in a plane substantially parallel to this axis. latest.
- the free edge of the pallet 40 opposite to the pivot axis C is extended by an inclined tongue 41.
- the pallet 40 defines a first flat portion 400 adapted to receive the support of the user's finger
- the inclined tongue defines a second flat pallet portion 401 also adapted to receive the support of the user's finger
- the first and second flat pallet portions 400, 401 being separated by a second angle ⁇ visible on the figure 4 .
- the inclined tongue 41 is adapted to cooperate with the bulge 53 to limit the pivoting of the latch 4 beyond the "locked" position.
- the bulge 53 can be inclined in a complementary manner to the inclined tongue 41.
- the bulge 53 can be consolidated by two ribs 54 connecting it to the shell 20.
- the bulge 53 and the inclined tongue 41 thus form complementary shapes defining a first stop.
- the bulge 53 and the inclined tongue 41 form a stop plane P '(shown schematically on the figure 4 ) inclined with respect to the support plane P.
- the pallet 40 In the "unblocked" position, illustrated in particular by the figure 3 , the pallet 40 extends above the shell 20, opposite the skirt 21. In the “locked” position, illustrated by the figure 4 , the pallet 40 is included in the thickness of the shell 20.
- the latch 4 also comprises a curved hook 42 forming a second locking edge 7.
- the hook 42 is adapted, when the latch 4 is in the "unlocked” position, not to protrude outwards with respect to the skirt 21 and when the latch 4 is in the "locked” position, laterally passing the second locking edge 7 of the skirt 21 so as to block, from below, the edge of the orifice 101 between the first locking edge 23 of the hull 20 and the second locking edge 7 of the latch 4.
- the hook 42 and the pallet 40 are arranged on either side of the pivot axis C of the latch 4. Thus, in the "unlocked" position and in the the "locked” position, the hook 42 extends below the shell 20, on the same side as the skirt 21.
- the hook 42 is in the form of an open V formed of a first flat hook portion 420 connected to the pivot axis C by a second flat hook portion 4 21.
- the first and second flat hook portions 420, 421 are separated by a first visible angle ⁇ on the figure 4 .
- the first angle ⁇ is substantially equal to the second angle ⁇ so that the first flat portions of hook 420 and pallet 400 are substantially parallel to each other and the second flat portions of hook 421 and pallet 401 are also substantially parallel to each other.
- the latch 4 also comprises two unlocking wings 45 disposed on either side of the pallet 40 and extending from the pivot axis C in planes substantially parallel to each other and substantially perpendicular to the pivot axis C and to the support plane P. According to an embodiment not shown, the unlocking vanes may be inclined relative to the pivot axis and / or relative to each other.
- the latch 4 also comprises two locking lugs 44 extending from the pivot axis C, substantially perpendicular to the pivot axis C and having a length, starting from the pivot axis C, greater than the distance separating the pivot axis C of the fixed stops 51.
- the locking stubs 44 are arranged to be in the path of the fixed stops 51 formed by the opening 5 when the latch 4 pivots between its "locked” positions and “unlocked”. Thus, without deformation, the ends of the locking stubs 44 can not cross the fixed stops 51.
- the ends of the locking stubs 44 are bevelled so as to cooperate with the inclined planes 52 of the fixed stops 51 to transversely deform the locking stubs 44 until they are opposite the clearances 50 and they can cross the fixed stops 51.
- the crossing of the fixed stops 51 by the locking stubs 44 between the "unlocked” position and the "locked” position 4 is obtained by transverse deformation of each locking heel 44 during manual loading of the pallet 40 towards the opening 5.
- the locking stubs 44 are biased towards each other. After crossing the fixed stops 51, the heels of locking 44 and the fixed stops 51 prevent the return of the latch 4 to its "locked" position.
- the locking stubs 44 and the fixed stops 51 thus form latch locking means 4 in its locked position.
- the unlocking vanes 45 are offset angularly with respect to the locking stubs 44 away from the shell 20. Thus, when the support plane P is horizontal with the skirt 20 placed below this support plane P , the unlocking vanes 45 extend above the locking heels 44. After crossing the fixed stops 51, in the "locked” position of the lock 4, the unlocking vanes 45 remain accessible on the other side of the hull. 20, here above, relative to the locking stubs 44. The unlocking vanes 45 are thereby easily manipulated.
- a withdrawal of material 46 (visible on Figures 3 and 4 ) is formed between the ends of the locking lugs 44 and those of the unlocking vanes 45.
- This removal of material 46 allows, as detailed below, the lateral bending of the unlocking vanes 45.
- the unlocking vanes 45 integral, rigidly to the locking stubs 44 and elastically deformable connected relative to the pivot axis C.
- a transverse manual bias on the unlocking vanes 45 causes the lateral deformation of the unlocking vanes 45, causing the lateral deformation locking heels 44 to bring the end of each locking lug 44 opposite the corresponding clearance 50 and allow the crossing of the fixed stops 51 by the locking stubs 44.
- the material withdrawals 46 allow the lateral bending of the fins unlocking 45 without these coming into contact with the edges of the inclined tongue 41.
- the unlocking vanes 45 and the recesses 50 form unlocking means able to unlock the latch 4 to allow its passage from its "locked" position to its "unlocked” position.
- the lateral uprights 43 and the pallet 40 are joined at the pivot axis C and disjointed to their free ends.
- the free end of each unlocking fin 45 is provided with a protruding ridge 47 limiting the sliding of the user's finger when he is gripping the unlocking vanes 45 towards each other and pulling on the latch 4 to unlock it as described later.
- Each lateral upright 43 is provided with a lug 48 extending transversely, opposite the pallet 40, so as to be located in the path of the edge of the orifice 101 during the pivoting of the latch 4.
- the distance between the ends of the two lugs 48 is thus greater than the width of the opening 5.
- the lugs 48 are further arranged so as to come into contact with the edges of the orifice 101 only after the latch 4 has reached its "locked” position. Thus, these lugs 48 and the edges of the orifice 101 form a second stop to limit the pivoting of the latch 4 beyond the "locked" position.
- the latch 4 and the shell 20 are connected by the torsion bars 6 provided in the direct alignment of the edge of the shell 20 and defining the pivot axis C. These torsion bars 6 are elastically deformable so as to allow their torsion to follow the pivoting of the latch 4 about the pivot axis C between its "unlocked” and “locked” positions.
- the lid 20 is thus made in a one-piece molded part, for example obtained by molding.
- the lid 1 is thus easy to produce. It does not require assembly which limits the risk of parts loss and facilitates its use.
- the pallet 40 defines a first flat portion of the pallet 400 substantially parallel to the first flat portion of the hook 420.
- the latch 4 can adopt an "unlocked" position in which the first flat portions of the hook 420 and pallet 400 are substantially perpendicular to the plane of support P.
- the inclined tongue 41 extending the pallet 40 forms a second flat pallet portion 401 substantially parallel to the second flat hook portion 421.
- the cover can be formed in several parts, for example a shell provided with bearings receiving rods secured to the lock, or a shell provided with bearings receiving a pivot shaft around which the lock is pivotable.
- the latch and the shell may be separated by a torsion spring-type resilient biasing element tending to press the latch into one of its positions.
- the shape and dimensions of the opening 5 and the latch 4 are provided so that, when the latch 4 is in its "locked” position, the opening 5 is largely closed by the pallet 40.
- the sensor housed in the hole 101 of the support 100 is protected from the external environment and is unlikely to be damaged.
- the locking lugs and unlocking wings can be carried by the shell, the latch then being provided with clearances.
- the pivoting of the lock from the "unlocked" position to the "locked” position is obtained by a direct action on the lock, whereas, unlike the illustrated embodiment, the unlocking of the lock is obtained by an action on the release wings carried by the hull and not by the lock.
- the latch 4 comprises two locking lugs 44, two unlocking vanes 45 and the opening 5 has two fixed stops 51 and two clearances 50.
- the lock may comprise a locking heel and a single unlocking fin, the opening then being provided with a single clearance and a single fixed stop.
- the clearance can provide clearances provided on either side of the fixed stops.
- the lid 1 To be mounted on the support 100, the lid 1 is presented above the orifice 101, the skirt 21 being oriented towards the support 100, the 1 being inclined so as to engage the edge of the hole 101 between the fixing lugs 3 and the first locking edge 23. The lid 1 is then tilted so as to bring the first locking edge 23 in contact with its entire length on the support 100. During this tilting, the fixing lugs 3 remain engaged under the edge of the orifice 101. After tilting, the skirt 21 is encircled by the orifice 101. In this engaged position, the hook 42 does not protrude out of the skirt 21.
- the user exerts, by means of a finger, a pressure on the pallet 40.
- this pressure can be exerted substantially parallel to the support plane P.
- This pressure can also be applied in an inclined manner relative to the support plane P or perpendicularly to the same support plane P.
- the pallet 40 inclines towards the support plane P and the hook 42 protrudes laterally from the skirt 21 to engage under the edge of the orifice 101.
- the locking heels 44 arrive punctually in contact with the fixed stops 51.
- the beveled ends of the locking stubs 44 force them to laterally deform to the pallet 41 so as to bring them facing the clearances 50 and to cross the fixed stops 51 behind which they resume their original position.
- the latch 4 is thus locked in its "locked” position in which the hook 42, engaged under the edges of the support 100, in cooperation with the support plane P and the fixing lugs 3, secures the lid 1 to the support 100.
- the pivoting of the latch 4 beyond its “locked” position is prevented on the one hand by the bulge 53 of the shell 20 bearing against the inclined tongue 41 extending the pallet 40 and on the other hand by the lugs 48 coming from resting on the upper edges of the opening 5 of the shell 20.
- the user deforms the unlocking vanes 45 towards each other in a direction substantially parallel to the pivot axis C and at the support plane P.
- This simultaneous action on the unlocking vanes 45 is simple to perform instinctively.
- the unlocking vanes 45 brought towards each other occasionally cause the lateral deformation of the locking stubs 44 until they are opposite the recesses 50.
- the user pulls the latch 4 towards him. so that the locking heels 44 cross the fixed stops 51 behind which they resume their original position.
- the latch 4 is then in its "unlocked" position.
- the lid 1 according to the invention may be repeatedly biased to access the orifice 101 and for example the sensor housed therein.
- the latch 4 is easily actuable instinctively.
- the fact that the locking and unlocking forces are to exercise substantially parallel to the support plane P improves the ergonomics of the lid 1 and facilitates its use.
- the configuration of the locking and unlocking means makes it possible to limit the impact of the mechanical stresses of locks and unlockings to only the elements directly involved.
- the size of the lid is limited to the strict minimum.
- the particular design of the lid 1 allows it to be made of a single molded piece which is very advantageous from an industrial point of view.
- the lid is for example made of plastic material such as for example polyamide, polypropylene.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
- Closures For Containers (AREA)
- Helmets And Other Head Coverings (AREA)
Description
L'invention concerne de façon générale un couvercle comprenant une coque pourvue d'une première arête de blocage destinée à prendre appui sur le bord d'un orifice prévu dans un support pour l'obturer avec la coque, le couvercle comprenant au moins un verrou pourvu d'une seconde arête de blocage et agencé pour être mobile autour d'un axe de pivotement entre une position "débloquée" dans laquelle il n'entrave pas la mobilité du couvercle par rapport au support et une position "bloquée" dans laquelle la seconde arête de blocage coopère avec la première arête de blocage pour bloquer le couvercle sur le support, le couvercle comprenant en outre des moyens de verrouillage du verrou dans la position "bloquée" pourvus d'au moins une butée fixe et d'un talon de verrouillage flexible, l'un étant prévu sur la coque l'autre sur le verrou et aptes à coopérer de sorte à empêcher le passage sans flexion du talon de verrouillage de la position "débloquée" à la position "bloquée" et à verrouiller par cramponnage le verrou dans la position "bloquée".The invention relates generally to a lid comprising a shell provided with a first locking edge intended to bear on the edge of an orifice provided in a support for closing it with the shell, the lid comprising at least one lock provided with a second locking edge and arranged to be movable about a pivot axis between an "unlocked" position in which it does not hinder the mobility of the cover relative to the support and a "locked" position in which the second locking edge cooperates with the first locking edge to lock the cover on the support, the cover further comprising locking means of the lock in the "locked" position provided with at least one fixed stop and a heel of flexible locking, one being provided on the hull the other on the lock and able to cooperate so as to prevent the passage without bending of the locking heel from the "unlocked" position to the "b" position latched "and to latch the latch into the" locked "position.
L'invention concerne également un bloc moteur pour véhicule automobile, le bloc moteur comprenant au moins un orifice dans lequel est logé au moins un capteur électronique et obturé par un couvercle.The invention also relates to an engine block for a motor vehicle, the engine block comprising at least one orifice in which is housed at least one electronic sensor and closed by a cover.
Ce type de couvercle est couramment utilisé, notamment pour limiter l'accès à l'intérieur d'un orifice, par exemple pour protéger des équipements logés dans cet orifice, tel que notamment des capteurs électroniques. Le support est par exemple le bloc moteur d'un véhicule automobile qui peut comporter des orifices aptes à recevoir chacun un capteur électronique par exemple pour le contrôle du régime moteur du véhicule automobile. Pour assurer son bon fonctionnement, ce capteur doit être protégé de l'environnement extérieur du moteur. Ce capteur doit de plus être facilement accessible pour autoriser les opérations de maintenance et de contrôle du moteur. A cet effet, le couvercle doit pouvoir être mis en place sans outil, avec des gestes simples, avoir un maintien fiable dans le temps, tout en obturant de manière satisfaisante l'orifice, puis pouvoir être retiré de manière instinctive sans outil et remis en place facilement de manière répétée.This type of cover is commonly used, in particular to limit access to the interior of an orifice, for example to protect equipment housed in this orifice, such as in particular electronic sensors. The support is for example the engine block of a motor vehicle which may comprise orifices each adapted to receive an electronic sensor for example for controlling the engine speed of the motor vehicle. To ensure proper operation, this sensor must be protected from the external environment of the engine. This sensor must also be easily accessible to allow maintenance and control of the engine. For this purpose, the cover must be able to be put in place without tools, with simple gestures, have a reliable maintenance over time, while satisfactorily closing the orifice, then can be removed instinctively without tools and put back into action. place easily repeatedly.
La publication
On connait par ailleurs d'autres mécanismes de blocage tel que par exemple le dispositif de maintien d'une gaine de commande décrit par la publication
On connait également, de la publication
On connait ensuite, de la publication
Le but de l'invention est de remédier à ces inconvénients en proposant un couvercle facile à fabriquer, peu encombrant apte à être verrouillé et déverrouillé par des gestes simples de manière instinctive et répétée, dont le verrouillage et le déverrouillage n'imposent la sollicitation mécanique que les éléments directement concernés pour éviter la détérioration prématuré du couvercle, dont les éléments participant aux verrouillage et déverrouillage ne sont sollicités que pendant respectivement le verrouillage et le déverrouillage pour améliorer la durée de vie du couvercle, le couvercle pouvant être solidement fixé au support pour protéger efficacement la zone située sous le couvercle.
A cet effet, l'invention a pour objet un couvercle comprenant une coque pourvue d'une première arête de blocage destinée à prendre appui sur le bord d'un orifice prévu dans un support pour l'obturer avec la coque, le couvercle comprenant au moins un verrou pourvu d'une seconde arête de blocage et agencé pour être mobile autour d'un axe de pivotement entre une position "débloquée" dans laquelle il n'entrave pas la mobilité du couvercle par rapport au support et une position "bloquée" dans laquelle la seconde arête de blocage coopère avec la première arête de blocage pour bloquer le couvercle sur le support, le couvercle comprenant en outre des moyens de verrouillage du verrou dans la position "bloquée" pourvus d'au moins une butée fixe et d'un talon de verrouillage flexible, l'un prévu sur la coque l'autre sur le verrou et aptes à coopérer de sorte à empêcher le passage sans flexion du talon de verrouillage de la position "débloquée" à la position "bloquée" et à verrouiller par cramponnage le verrou dans la position "bloquée", caractérisé en ce que le talon de verrouillage est orienté perpendiculairement à l'axe de pivotement et flexible latéralement, parallèlement à l'axe de pivotement, en ce que le couvercle comporte des moyens de déverrouillage aptes à libérer le verrou de la position "bloquée comportant au moins une ailette de déverrouillage solidaire du talon de verrouillage et un dégagement décalé latéralement par rapport à la butée fixe et apte à autoriser le passage du talon de verrouillage fléchi, en ce que l'ailette de déverrouillage est agencée pour, dans la position "bloquée", être accessible de l'autre coté de la coque par rapport au talon de verrouillage et apte à être sollicitée manuellement latéralement pour fléchir le talon de verrouillage.The object of the invention is to overcome these disadvantages by providing a cover easy to manufacture, compact able to be locked and unlocked by simple gestures instinctively and repeatedly, the locking and unlocking do not impose the mechanical stress that elements directly concerned to avoid premature deterioration of the cover, the elements involved in the locking and unlocking are solicited only during the locking and unlocking respectively to improve the life of the cover, the cover can be securely fixed to the support to effectively protect the area under the lid.
For this purpose, the subject of the invention is a lid comprising a shell provided with a first locking edge intended to bear on the edge of an orifice provided in a support for closing it with the shell, the lid comprising at least one less a latch provided with a second locking edge and arranged to be movable about a pivot axis between an "unlocked" position in which it does not hinder the mobility of the cover relative to the support and a "locked" position in which the second locking edge cooperates with the first locking edge to lock the cover on the support, the cover further comprising locking means of the lock in the "locked" position provided with at least one fixed stop and of a flexible locking heel, one provided on the shell and the other on the latch and adapted to cooperate so as to prevent the passage without bending of the locking heel from the "unlocked" position to the "locked" position and to lock by clamping the lock in the "locked" position, characterized in that the locking heel is oriented perpendicularly to the pivot axis and laterally flexible, parallel to the pivot axis, in that the cover comprises means unlocking device capable of releasing the lock from the "locked" position comprising at least one unlocking fin secured to the locking heel and a clearance offset laterally with respect to the fixed stop and able to allow the passage of the bent locking heel, in that the unlocking fin is arranged to be, in the "locked" position, accessible on the other side of the shell with respect to the locking heel and able to be manually biased laterally to flex the locking heel.
Avec le couvercle selon l'invention, le talon de verrouillage est orienté perpendiculairement à l'axe de pivotement, il n'est ainsi sollicité en flexion que ponctuellement lors du passage de la butée fixe. De ce fait, il risque moins d'être endommagé. L'ailette de déverrouillage permet de déverrouiller le verrou de manière simple et ergonomique, avec un effort dosé au plus juste, cet effort n'étant appliqué que sur l'ailette de déverrouillage. Ainsi, pour déverrouiller le verrou, il n'est nul besoin de forcer sur les butées fixes et la coque n'est pas sollicitée de manière inappropriée. L'ailette de déverrouillage est de plus facilement accessible ce qui simplifie l'utilisation du couvercle, notamment son déverrouillage. Enfin, le déverrouillage obtenu par un déplacement latéral, parallèle à l'axe de pivotement, permet de réaliser les mouvements de déverrouillage de manière instinctive.With the lid according to the invention, the locking heel is oriented perpendicularly to the pivot axis, it is thus biased in bending only punctually during the passage of the fixed stop. As a result, it is less likely to be damaged. The unlocking wing allows to unlock the lock in a simple and ergonomic way, with a measured effort to the fair, this effort being applied only on the unlocking fin. Thus, to unlock the lock, there is no need to force on the fixed stops and the hull is not solicited inappropriately. The unlocking fin is also easily accessible which simplifies the use of the lid, in particular its unlocking. Finally, the unlocking obtained by a lateral movement, parallel to the pivot axis, makes it possible to perform the unlocking movements instinctively.
Le dispositif selon l'invention peut avantageusement présenter les particularités suivantes :
- le verrou comporte au moins un crochet définissant la seconde arête de blocage et solidaire d'une palette orientée parallèlement à l'axe de pivotement, apte à être sollicitée manuellement pour faire pivoter le verrou de la position "débloquée" à la position "bloquée", la palette et le crochet étant disposés de part et d'autre de l'axe de pivotement ;
- le talon de verrouillage et l'ailette de déverrouillage sont portés par le verrou, et la butée fixe et le dégagement sont portés par la coque ;
- la coque comporte au moins une ouverture tangente à sa périphérie et délimitée en partie par l'axe de pivotement, l'ouverture étant apte à recevoir au moins en partie le verrou, l'ouverture et la palette étant dimensionnées de sorte que la palette obture au moins en partie l'ouverture dans la position "bloquée" du verrou, l'ouverture comportant au moins un décrochement définissant d'une part le dégagement et d'autre part la butée fixe ;
- l'arête de l'ouverture et l'extrémité libre de la palette opposées à l'axe de pivotement sont pourvues de formes complémentaire aptes à venir en appui l'une contre l'autre lors du pivotement du verrou au-delà de la position "bloquée" pour former une première butée agencée pour limiter le pivotement du verrou ;
- le couvercle est réalisé dans une pièce moulée monobloc, l'axe de pivotement est formé par deux barres de torsion reliant de part et d'autre le verrou à la coque, le pivotement du verrou entre les positions "bloquée" et "débloquée" étant obtenu par torsion élastique des barres de torsion ;
- le crochet et la palette présentent respectivement une première portion plane de crochet et une première portion plane de palette sensiblement parallèles entre elles de sorte que le verrou soit apte à adopter une position "débloquée" dans laquelle les premières portions planes de crochet et de palette soient sensiblement perpendiculaires au plan d'appui ;
- la première portion plane de crochet est reliée à l'axe de pivotement par une seconde portion plane de crochet inclinée par rapport à la première portion plane de crochet de sorte à former un premier angle ouvert, la première portion plane de palette est reliée directement à l'axe de pivotement et prolongée par une seconde portion plane de palette définissant une languette inclinée et formant un second angle ouvert par rapport à la première portion plane de palette, les premier et second angles étant sensiblement égaux de sorte que les secondes portions planes de crochet et de palette soient sensiblement parallèles entre elles, la première arête de blocage définit un plan d'appui de la coque sur le support et l'ailette de déverrouillage s'étend du talon de verrouillage dans un plan sensiblement perpendiculaire au plan d'appui et sensiblement perpendiculaire à l'axe de pivotement ;
- le couvercle comporte deux talons de verrouillage, deux butées fixes disposés de part et d'autre de deux dégagements, et deux ailettes de déverrouillage aptes à être rapprochés l'une de l'autre par pincement pour provoquer la flexion latérale des talons de verrouillage.
- the lock comprises at least one hook defining the second locking edge and secured to a pallet oriented parallel to the pivot axis, adapted to be manually biased to rotate the lock from the "unlocked" position to the "locked" position , the pallet and the hook being arranged on either side of the pivot axis;
- the locking heel and the unlocking fin are carried by the lock, and the fixed stop and the clearance are carried by the hull;
- the shell comprises at least one opening tangential to its periphery and defined in part by the pivot axis, the opening being adapted to receive at least partly the latch, the opening and the pallet being dimensioned so that the pallet closes at least partly the opening in the "locked" position of the lock, the opening comprising at least one recess defining on the one hand the clearance and on the other hand the fixed stop;
- the edge of the opening and the free end of the pallet opposite the pivot axis are provided with complementary shapes adapted to bear against each other when the lock is pivoted beyond the position "blocked" to form a first stop arranged to limit the pivoting of the lock;
- the lid is made in a one-piece molded part, the pivot axis is formed by two torsion bars connecting on each side of the lock to the shell, the pivoting of the lock between the "locked" and "unlocked" positions being obtained by elastic torsion of the torsion bars;
- the hook and the pallet respectively have a first flat portion of hook and a first flat portion of pallet substantially parallel to each other so that the lock is adapted to adopt an "unlocked" position in which the first flat portions of hook and pallet are substantially perpendicular to the support plane;
- the first flat hook portion is connected to the pivot axis by a second flat hook portion inclined relative to the first flat hook portion so as to form a first open angle, the first flat pallet portion is directly connected to the pivot axis and extended by a second flat pallet portion defining an inclined tongue and forming a second open angle with respect to the first flat pallet portion, the first and second angles being substantially equal so that the second planar portions of hook and pallet are substantially parallel to each other, the first locking edge defines a support plane of the shell on the support and the unlocking fin extends from the locking heel in a plane substantially perpendicular to the support plane and substantially perpendicular to the pivot axis;
- the cover comprises two locking lugs, two fixed stops arranged on both sides of two clearances, and two fins of unlocking adapted to be brought closer to each other by pinching to cause the lateral bending of the locking heels.
L'invention concerne également un bloc moteur pour véhicule automobile, le bloc moteur comprenant au moins un orifice dans lequel est logé au moins un capteur électronique et obturé par un couvercle, ledit bloc moteur comportant au moins un couvercle tel que décrit précédemment l'orifice pour obturer l'orifice et protéger le capteur électronique.The invention also relates to an engine block for a motor vehicle, the engine block comprising at least one orifice in which is housed at least one electronic sensor and closed by a cover, said engine block comprising at least one cover as described above the orifice to close the orifice and protect the electronic sensor.
La présente invention sera mieux comprise et d'autres avantages apparaîtront à la lecture de la description détaillée d'un mode de réalisation pris à titre d'exemple nullement limitatif et illustré par les dessins annexés, dans lesquels :
- les
figures 1 sont des vues en perspective du couvercle selon l'invention avec le verrou en position "débloquée" ;et 2 - la
figure 3 est une vue en coupe selon le plan AA de lafigure 2 du couvercle selon l'invention avec le verrou en position "débloquée" ; - la
figure 4 est une vue en coupe selon le plan BB de lafigure 2 du couvercle selon l'invention avec le verrou en position "bloquée".
- the
Figures 1 and 2 are perspective views of the lid according to the invention with the lock in the "unlocked"position; - the
figure 3 is a sectional view according to the plane AA of thefigure 2 lid according to the invention with the lock in the "unlocked"position; - the
figure 4 is a sectional view along the plane BB of thefigure 2 of the lid according to the invention with the lock in the "locked" position.
En référence aux figures, le couvercle 1 selon l'invention est destiné à être utilisé pour obturer un orifice 101 prévu dans un support 100, tel que par exemple un bloc moteur. Ce couvercle 1 comporte une coque 2, des pattes de fixation 3 et un verrou 4.With reference to the figures, the cover 1 according to the invention is intended to be used to close an
La coque 2 comporte une plaque 20 globalement plane de laquelle s'étend une jupe 21 sensiblement perpendiculaire à la plaque 20 et destinée à être logée dans l'orifice 101. En vue de dessus, la plaque 20 présente une forme générale de trapèze. La plaque 20 comporte une cavité orientée vers le dessous et formant un relief 22 sur sa face supérieure et un logement (non visible) sous sa face inférieure. Cette cavité est apte à recevoir par exemple le relief d'un capteur (non représenté) prévu dans le logement. Le logement débouche latéralement de la plaque 20 par un passage 24 ouvert vers le bas et apte à recevoir par exemple un câble d'alimentation et/ou de communication reliant le capteur de vitesse du moteur à une entité électronique du véhicule automobile. Ce passage 24 est délimité en partie inférieure par un retour élastique 25 permettant d'enserrer le câble. La jupe 21 est ainsi interrompue en regard de ce passage 24 et en regard du verrou décrit plus loin. La jupe 21 permet de garantir le bon positionnement du couvercle 1 par rapport à l'orifice 101. Il est bien entendu que le couvercle 1 peut avoir toute autre forme adaptée. Le couvercle 1 comporte un rebord définissant une première arête de blocage 23 prévu à la jonction entre la jupe 21 et la plaque 20. Cette première arête de blocage 23 s'étend sur la périphérie de la coque 2 et définit un plan d'appui P (schématisé sur les
La coque 20 comporte une ouverture 5, tangente au bord de la coque 20 opposé à celui portant les pattes de fixation 3. L'ouverture 5 est fermée latéralement par un axe de pivotement C formé par deux barres de torsion 6 coaxiales, sensiblement similaires entre elles, s'étendant de part et d'autre du verrou 4. Dans cet exemple, l'ouverture 5 a une forme sensiblement rectangulaire. Toutefois, le bord de l'ouverture 5, opposé à l'axe de pivotement C, comporte deux décrochements définissant chacun un dégagement 50 et une butée fixe 51 dont les fonctions sont explicitées plus loin. Les décrochements sont prévus dans la trajectoire de pivotement du verrou 4 de sorte que les butées fixes 51 soient séparés par les dégagements 50. Selon des modes de réalisation non représentés, les dégagements peuvent être prévus à l'extérieur des butées fixes, ou les butées fixes et dégagements peuvent être intercalés. Au niveau de la face supérieure de la coque 20, chaque butée fixe 51 définit une forme en V tangente aux bords de l'ouverture 5 et dont les branches se faisant face comportent un plan incliné 52 ou arrondi dont la fonction est explicitée plus loin. Les décrochements sont séparés, sur la face supérieure de la coque 20, par un renflement 53 destiné à former une première butée pour limiter le pivotement du verrou 4.The
Le verrou 4 comporte une palette 40 de forme rectangulaire, sensiblement plane, apte à recevoir l'appui d'un doigt d'un utilisateur pour être manuellement sollicitée vers l'ouverture 5 et faire pivoter le verrou 4. La palette 40 peut comporter des rainures 49 (visibles sur la
Le verrou 4 comporte également un crochet 42 incurvé formant une seconde arête de blocage 7. Le crochet 42 est apte, lorsque le verrou 4 est dans la position "débloquée", à ne pas dépasser vers l'extérieur par rapport à la jupe 21 et, lorsque le verrou 4 est en position "bloquée", à faire dépasser latéralement la seconde arête de blocage 7 de la jupe 21 de sorte à bloquer, par le dessous, le bord de l'orifice 101 entre la première arête de blocage 23 de la coque 20 et la seconde arête de blocage 7 du verrou 4. Le crochet 42 et la palette 40 sont disposés de part et d'autre de l'axe de pivotement C du verrou 4. Ainsi, dans la position "débloquée" et dans la position "bloquée", le crochet 42 s'étend en-dessous de la coque 20, du même coté que la jupe 21. Dans l'exemple illustré, le crochet 42 se présente sous la forme d'un V ouvert formée d'une première portion plane de crochet 420 raccordée à l'axe de pivotement C par une seconde portion plane de crochet 421. Les première et seconde portions planes de crochet 420, 421 sont séparées par un premier angle α visible sur la
Le verrou 4 comporte également deux ailettes de déverrouillage 45 disposées de part et d'autre de la palette 40 et s'étendant de l'axe de pivotement C dans des plans sensiblement parallèles entre eux et sensiblement perpendiculaires à l'axe de pivotement C et au plan d'appui P. Selon un mode de réalisation non représenté, les ailettes de déverrouillage peuvent être inclinées par rapport à l'axe de pivotement et/ou l'un par rapport à l'autre. Le verrou 4 comporte également deux talons de verrouillage 44 s'étendant de l'axe de pivotement C, sensiblement perpendiculairement à l'axe de pivotement C et présentant une longueur, en partant de l'axe de pivotement C, supérieure à la distance séparant l'axe de pivotement C des butées fixes 51. De plus, les talons de verrouillage 44 sont disposés de sorte à être dans la trajectoire des butées fixes 51 formés par l'ouverture 5 lorsque le verrou 4 pivote entre ses positions "bloquée" et "débloquée". Ainsi, sans déformation, les extrémités des talons de verrouillage 44 ne peuvent franchir les butées fixes 51. Les extrémités des talons de verrouillage 44 sont biseautées de manière à coopérer avec les plans inclinés 52 des butées fixes 51 pour déformer transversalement les talons de verrouillage 44 jusqu'à ce qu'ils soient en regard des dégagements 50 et qu'ils puissent franchir les butées fixes 51. Ainsi, le franchissement des butées fixes 51 par les talons de verrouillage 44 entre la position "débloquée" et la position "bloquée" du verrou 4, est obtenu par déformation transversale de chaque talon de verrouillage 44 lors de la sollicitation manuelle de la palette 40 vers l'ouverture 5. Dans l'exemple illustré, de part la disposition des butées fixes 51 et des dégagements 50, les talons de verrouillage 44 sont sollicités l'un vers l'autre. Après le franchissement des butées fixes 51, les talons de verrouillage 44 et les butées fixes 51 empêchent le retour du verrou 4 vers sa position "bloquée". Les talons de verrouillage 44 et les butées fixes 51 forment ainsi des moyens de verrouillage du verrou 4 dans sa position bloquée. Les ailettes de déverrouillage 45 sont décalées angulairement par rapport aux talons de verrouillage 44 en s'éloignant de la coque 20. Ainsi, lorsque le plan d'appui P est horizontal avec la jupe 20 placée en-dessous de ce plan d'appui P, les ailettes de déverrouillage 45 s'étendent au-dessus des talons de verrouillage 44. Après le franchissement butées fixes 51, dans la position "bloquée" du verrou 4, les ailettes de déverrouillage 45 restent accessibles de l'autre coté de la coque 20, ici au-dessus, par rapport aux talons de verrouillage 44. Les ailettes de déverrouillage 45 sont de ce fait facilement manipulables.The
Un retrait de matière 46 (visible sur les
Chaque montant latéral 43 est pourvu d'un ergot 48 s'étendant transversalement, à l'opposé de la palette 40, de sorte à se situer dans la trajectoire du bord de l'orifice 101 lors du pivotement du verrou 4. La distance séparant les extrémités des deux ergots 48 est ainsi supérieure à la largeur de l'ouverture 5. Les ergots 48 sont de plus disposés de sorte à ne venir en contact avec les bords de l'orifice 101 qu'après que le verrou 4 ait atteint sa position "bloquée". Ainsi, ces ergots 48 et les bords de l'orifice 101 forment une seconde butée permettant de limiter le pivotement du verrou 4 au-delà de la position "bloquée".Each lateral upright 43 is provided with a
Le verrou 4 et la coque 20 sont reliés par les barres de torsion 6 prévues dans l'alignement direct du bord de la coque 20 et définissant l'axe de pivotement C. Ces barres de torsion 6 sont élastiquement déformables de manière à autoriser leur torsion pour suivre le pivotement du verrou 4 autour de l'axe de pivotement C entre ses positions "débloquée" et "bloquée". Le couvercle 20 est ainsi réalisé dans une pièce moulée monobloc, par exemple obtenue par moulage. Le couvercle 1 est ainsi facile à produire. Il ne nécessite pas de montage ce qui limite le risque de perte de pièces et facilite son utilisation. Pour permettre le démoulage du couvercle 1, la palette 40 définit une première portion plane de palette 400 sensiblement parallèle à la première portion plane du crochet 420. Ainsi, le verrou 4 peut adopter une position "débloquée" dans laquelle les premières portions planes du crochet 420 et de palette 400 sont sensiblement perpendiculaires au plan d'appui P. De même, la languette inclinée 41 prolongeant la palette 40 forme une seconde portion plane de palette 401 sensiblement parallèle à la seconde portion plane de crochet 421.The
Selon d'autres modes de réalisation non représentés, le couvercle peut être formé en plusieurs pièces, par exemple une coque pourvue de paliers recevant des tiges solidaires du verrou, ou une coque pourvue de paliers recevant un arbre de pivotement autour duquel le verrou est apte à pivoter. Dans ces modes de réalisation le verrou et la coque peuvent être séparés par un élément de rappel élastique de type ressort de torsion tendant à plaquer le verrou dans l'une de ses positions.According to other embodiments not shown, the cover can be formed in several parts, for example a shell provided with bearings receiving rods secured to the lock, or a shell provided with bearings receiving a pivot shaft around which the lock is pivotable. In these embodiments the latch and the shell may be separated by a torsion spring-type resilient biasing element tending to press the latch into one of its positions.
La forme et les dimensions de l'ouverture 5 et du verrou 4 sont prévues pour que, lorsque le verrou 4 est dans sa position "bloquée", l'ouverture 5 soit en grande partie obturée par la palette 40. Ainsi, le capteur logé dans l'orifice 101 du support 100 est protégé de l'environnement extérieur et risque peu d'être endommagé.The shape and dimensions of the
Dans un autre mode de réalisation non représenté, les talons de verrouillage et les ailettes de déverrouillage peuvent être portés par la coque, le verrou étant alors pourvu des dégagements. Dans ce mode de réalisation, le pivotement du verrou de la position "débloquée" à la position "bloquée" est obtenu par une action directe sur le verrou alors que, contrairement au mode de réalisation illustré, le déverrouillage du verrou est obtenu par une action sur les ailettes de déverrouillage portés par la coque et non par le verrou.In another embodiment not shown, the locking lugs and unlocking wings can be carried by the shell, the latch then being provided with clearances. In this embodiment, the pivoting of the lock from the "unlocked" position to the "locked" position is obtained by a direct action on the lock, whereas, unlike the illustrated embodiment, the unlocking of the lock is obtained by an action on the release wings carried by the hull and not by the lock.
Dans l'exemple illustré, le verrou 4 comporte deux talons de verrouillage 44, deux ailettes de déverrouillage 45 et l'ouverture 5 comporte deux butées fixes 51 et deux dégagements 50. Il est bien entendu que le verrou peut comporter un talon de verrouillage et une ailette de déverrouillage uniques, l'ouverture étant alors pourvue d'un seul dégagement et d'une seule butée fixe. Selon encore un autre mode de réalisation non représenté, le dégagement peut ménager des dégagements prévus de part et d'autre des butées fixes. Ainsi, pour déverrouiller le verrou, on éloignera l'un de l'autre les ailettes de déverrouillage portant les talons de verrouillage pour leur faire franchir les butées rigides.In the example shown, the
Pour être monté sur le support 100, le couvercle 1 est présenté au-dessus de l'orifice 101, la jupe 21 étant orientée vers le support 100, le couvercle 1 étant incliné de manière à engager le bord de l'orifice 101 entre les pattes de fixation 3 et la première arête de blocage 23. Le couvercle 1 est ensuite basculé de manière à amener la première arête de blocage 23 en appui sur toute sa longueur sur le support 100. Lors de ce basculement, les pattes de fixation 3 restent engagées sous le bord de l'orifice 101. Après basculement, la jupe 21 est encerclée par l'orifice 101. Dans cette position engagée, le crochet 42 ne dépasse pas vers l'extérieur de la jupe 21.To be mounted on the
Pour verrouiller le couvercle 1 sur le support 100, l'utilisateur exerce, au moyen d'un doigt, une pression sur la palette 40. En prenant appui sur la languette inclinée 41, cette pression peut être exercée sensiblement parallèlement au plan d'appui P. Cette pression peut également être appliquée de manière inclinée par rapport au plan d'appui P ou perpendiculairement à ce même plan d'appui P. Au cours du pivotement du verrou 4, la palette 40 s'incline vers le plan d'appui P et le crochet 42 dépasse latéralement de la jupe 21 pour s'engager sous le bord de l'orifice 101. Les talons de verrouillage 44 arrivent ponctuellement en contact avec les butées fixes 51. Les extrémités biseautées des talons de verrouillage 44 les forcent à se déformer latéralement vers la palette 41 de sorte à les amener en regard des dégagements 50 et à franchir les butées fixes 51 derrière lesquels ils reprennent leur position initiale. Le verrou 4 est ainsi verrouillé dans sa position "bloquée" dans laquelle le crochet 42, engagé sous les bords du support 100, en coopération avec le plan d'appui P et les pattes de fixation 3, solidarise le couvercle 1 au support 100. Le pivotement du verrou 4 au-delà de sa position "bloquée" est empêché d'une part par le renflement 53 de la coque 20 venant en appui contre la languette inclinée 41 prolongeant la palette 40 et d'autre part par les ergots 48 venant en appui sur les bords supérieurs de l'ouverture 5 de la coque 20.To lock the lid 1 on the
Pour déverrouiller le couvercle 1 du support 100, par un effet pince de ses doigts, l'utilisateur déforme les ailettes de déverrouillage 45 l'une vers l'autre selon une direction sensiblement parallèle à l'axe de pivotement C et au plan d'appui P. Cette action simultanée sur les ailettes de déverrouillage 45 est simple à réaliser de manière instinctive. Les ailettes de déverrouillage 45 ramenées l'une vers l'autre provoquent ponctuellement la déformation latérale des talons de verrouillage 44 jusqu'à ce qu'ils soient en regard des dégagements 50. A ce stade, l'utilisateur tire le verrou 4 vers lui pour que les talons de verrouillage 44 franchissent les butées fixes 51 derrière lesquels ils reprennent leur position initiale. Le verrou 4 est alors dans sa position "débloquée".To unlock the cover 1 of the
Le couvercle 1 selon l'invention peut être sollicité de manière répétée pour accéder à l'orifice 101 et par exemple au capteur logé dedans. Le verrou 4 est facilement actionnable de manière instinctive. Le fait que les efforts de verrouillage et de déverrouillage soient à exercer sensiblement parallèlement au plan d'appui P améliore l'ergonomie du couvercle 1 et facilite son utilisation. De plus, la configuration des moyens de verrouillage et de déverrouillage permet de limiter l'impact des sollicitations mécaniques de verrouillages et de déverrouillages aux seuls éléments directement impliqués. En outre, l'encombrement du couvercle est limité au strict minimum. Enfin, la conception particulière du couvercle 1 lui permet d'être réalisé en une pièce unique moulée ce qui est très avantageux d'un point de vue industriel. Le couvercle est par exemple réalisé en matière plastique tel que par exemple du polyamide, du polypropylène.The lid 1 according to the invention may be repeatedly biased to access the
On remarque ainsi que l'effort pour verrouiller le verrou 4 en appuyant sur la palette 40, à savoir un effort sensiblement perpendiculaire à l'axe de pivotement C, et l'effort pour fléchir les ailettes de déverrouillage 45, à savoir un effort sensiblement parallèle à l'axe de pivotement C, sont croisés et orientés perpendiculairement l'un de l'autre. Il est ainsi aisé pour l'utilisateur de différencier les gestes qu'il doit effectuer successivement pour verrouiller le verrou 4 et le déverrouiller. L'utilisation du couvercle 1 selon l'invention en est ainsi facilitée.It is thus noted that the effort to lock the
Claims (10)
- Cover (1) including a shell (20) having a first latching edge (23) intended to bear on the edge of an orifice (100) in a support (100) to block it with said shell (20), said cover (1) including at least one latch (4) having a second latching edge (7) and adapted to be mobile about a pivot axis (C) between an "unlocked" position in which it does not hinder the mobility of said cover (1) relative to said support (100) and a "locked" position in which said second latching edge (7) cooperates with said first latching edge (23) to latch said cover (1) to said support (100), said cover (1) further including means (44, 51) for latching said latch (4) in said "locked" position comprising at least one fixed stop (51) and flexible latching lug (44), one being provided on said shell (20) and the other on said latch (4), adapted to cooperate so as to prevent the passage from said "unlocked" position to said "locked" position without said latching lug (44) bending and to latch said latch (4) in said "locked" position by clamping it, characterized in that said latching lug (44) is oriented perpendicularly to said pivot axis (C) and can be bent laterally, parallel to said pivot axis (C), in that said cover (1) includes unlatching means (45, 50) adapted to release said latch (4) from said "locked" position having at least an unlatching flange (45) integral with said latching lug (44) and a recess (50) offset laterally relative to said fixed stop (51) and adapted to allow the passage of said latching lug (44) when bent, in that said unlatching flange (45) is adapted to be accessible in said "locked" position from the other side of said shell (20) relative to said latching lug (44) and can be pushed laterally by hand to bend said latching lug (44).
- Cover (1) according to at least the preceding claim, characterized in that said latch (4) includes at least one hook (42) defining said second latching edge (7) and secured to a paddle (40) oriented parallel said pivot axis (C) adapted to be pushed by hand to pivot said latch (4) from said "unlocked" position to said "locked" position, said paddle (40) and said hook (42) being disposed on respective opposite sides of said pivot axis (C) .
- Cover (1) according to at least one of the preceding claims, characterized in that said latching lug (44) and said unlatching flange (45) are carried by said latch (4) and in that said fixed stop (51) and said recess (50) are carried by said shell (20).
- Cover (1) according to at least one of claims 2 and 3, characterized in that said shell (20) has at least one opening (5) tangential to its periphery partly delimited by said pivot axis (C), said opening (5) being adapted to receive said latch (4) at least partly, said opening (5) and said paddle (40) being sized so that said paddle (40) at least partly blocks said opening (5) in said "locked" position of said latch (4), said opening (5) including at least one set-back portion defining on the one hand said recess (50) and on the other hand said fixed stop (51) .
- Cover (1) according to the preceding claim, characterized in that the edge of said opening (5) and the free end of said paddle (40) opposite said pivot axis (C) have complementary shapes adapted to come to bear against one another upon pivoting of said latch (4) beyond said "locked" position to form a first stop adapted to limit pivoting of said latch (4).
- Cover (1) according to at least one of the preceding claims, characterized in that it is moulded in one piece and in that said pivot axis (C) is defined by two torsion bars (6) connecting respective opposite sides of said latch (4) to said shell (20), pivoting of said latch (4) between said "locked" and "unlocked" positions being produced by elastic torsion of said torsion bars (6).
- Cover (1) according to at least Claim 2, characterized in that said hook (42) and said paddle (40) respectively have a first flat hook portion (420) and a first flat paddle portion (400) substantially parallel to each other so that said latch (4) can adopt an "unlocked" position in which said first flat hook portion (420) and paddle portion (400) are substantially perpendicular to said bearing plane (P).
- Cover (1) according to at least Claim 7, characterized in that said first flat hook portion (420) is connected to said pivot axis (C) by a second flat hook portion (421) inclined relative to said first flat hook portion (420) so as to form a first open angle (α), in that said first flat paddle portion (400) is connected directly to said pivot axis (C) and extended by a second flat paddle portion (401) defining an inclined tongue (41) and forming a second open angle (β) relative to said first flat paddle portion (400), said first and second angles (α, β) being substantially equal so that said second flat hook portion (421) and paddle portion (401) are substantially parallel to each other, and in that said first latching edge (23) defines a bearing plane (P) of said shell (20) on said support (100) and said unlatching flange (45) extends from said latching lug (44) in a plane substantially perpendicular to said bearing plane (P) and substantially perpendicular to said pivot axis (C).
- Cover (1) according to any one of the preceding claims, characterized in that it includes two latching lugs (44) and two fixed stops (51) arranged on respective opposite sides of two recesses (50) and two unlatching flanges (45) adapted to be moved towards each other by squeezing them to cause said lateral bending of said latching lugs (44).
- Engine block (100) for a motor vehicle, said engine block (100) including at least one orifice (101) housing at least one electronic sensor and blocked by a cover, characterized in that it includes at least one cover (1) according to at least one of claims 1 to 9 for blocking said orifice (101) and protecting said electronic sensor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1159957A FR2982304B1 (en) | 2011-11-03 | 2011-11-03 | COVER AND MOTOR BLOCK PROVIDED WITH SAID COVER |
PCT/EP2012/070845 WO2013064387A1 (en) | 2011-11-03 | 2012-10-22 | Cover and motor block provided with said cover |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2773828A1 EP2773828A1 (en) | 2014-09-10 |
EP2773828B1 true EP2773828B1 (en) | 2016-03-30 |
Family
ID=47076209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12778310.8A Active EP2773828B1 (en) | 2011-11-03 | 2012-10-22 | Cover and motor block provided with said cover |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2773828B1 (en) |
CN (1) | CN104011306B (en) |
BR (1) | BR112014010554B1 (en) |
ES (1) | ES2570558T3 (en) |
FR (1) | FR2982304B1 (en) |
WO (1) | WO2013064387A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3053748B1 (en) * | 2016-07-06 | 2018-07-13 | A Raymond Et Cie | REINFORCED TORSION BAR HING ASSEMBLY |
CN112412184B (en) * | 2020-11-13 | 2021-10-01 | 中国航空工业集团公司沈阳飞机设计研究所 | Lock mechanism |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1083327A (en) * | 1963-12-30 | 1967-09-13 | Aerpat Ag | Improvements in closure assemblies and bolt mechanisms |
FR2645834B1 (en) | 1989-04-14 | 1991-10-18 | Allibert Sa | LOCKER COMPRISING AN ARTICULATED LID PROVIDED WITH AN IMPROVED LOCK AND AN IMPROVED HINGE |
AU5763700A (en) | 1999-06-23 | 2001-10-30 | Southco, Inc. | Compression latch |
FR2807120B1 (en) | 2000-03-31 | 2002-06-21 | Valeo Electronique | DEVICE FOR HOLDING A CABLE REMOTE CONTROL SHEATH |
FR2841056B1 (en) * | 2002-06-13 | 2004-11-05 | Legrand Sa | BOX COMPRISING A BASE, A LID AND A ARTICULATED LOCK FOR LOCKING THE LID ON THE BASE |
JP3696866B2 (en) * | 2003-10-20 | 2005-09-21 | 株式会社アルファ | Door opener |
DE10352824A1 (en) * | 2003-11-12 | 2005-06-23 | Witte-Velbert Gmbh & Co. Kg | Locking catch especially for door or hatch in vehicle has an elastic element to provide a rattle free closure |
CN200996234Y (en) * | 2006-10-10 | 2007-12-26 | 力巨人有限公司 | Auxiliary latching engine device of engine cap for vehicle |
-
2011
- 2011-11-03 FR FR1159957A patent/FR2982304B1/en active Active
-
2012
- 2012-10-22 EP EP12778310.8A patent/EP2773828B1/en active Active
- 2012-10-22 BR BR112014010554-5A patent/BR112014010554B1/en active IP Right Grant
- 2012-10-22 CN CN201280063105.0A patent/CN104011306B/en active Active
- 2012-10-22 ES ES12778310T patent/ES2570558T3/en active Active
- 2012-10-22 WO PCT/EP2012/070845 patent/WO2013064387A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FR2982304B1 (en) | 2013-12-06 |
WO2013064387A1 (en) | 2013-05-10 |
CN104011306B (en) | 2016-04-20 |
FR2982304A1 (en) | 2013-05-10 |
CN104011306A (en) | 2014-08-27 |
BR112014010554A2 (en) | 2017-04-18 |
ES2570558T3 (en) | 2016-05-19 |
BR112014010554B1 (en) | 2020-12-01 |
EP2773828A1 (en) | 2014-09-10 |
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