FR3023754A1 - MEMORIZATION DEVICE, SLIDER COMPRISING SUCH A MEMORIZATION DEVICE AND VEHICLE SEAT COMPRISING SUCH A SLIDER - Google Patents

Abstract

Storage device adapted to memorize a longitudinal position of a seat and to recover said stored longitudinal position after a movement of the seat, comprising a rotary memory gear (30) with a first external toothing (38) of n teeth, a lever holding device (60) movable in rotation between an active position in which it prevents the rotation of the storage gear, and an inactive position in which it allows the rotation of the storage gear, a selection mask (50) movable in rotation between a first position in which it gives access to the lever holding na teeth of the first external toothing of the storage pinion, and a second position in which it gives access to nb teeth of the first external toothing, b being different from a.

Description

BACKGROUND OF THE INVENTION The present invention relates to storage devices, to slides having such storage devices and to vehicle seats comprising a storage device, a slideway comprising such a storage device and a vehicle seat comprising such a slide. such slides. BACKGROUND OF THE INVENTION More particularly, the invention relates to a storage device adapted to memorize a longitudinal position of a vehicle seat and make it possible to recover said longitudinal position stored in the seat after a displacement of said seat, said memory device comprising a storage gear rotatably mounted around a first axis of rotation and adapted to be rotated during an adjustment of the longitudinal position of the seat and comprising a first external toothing of n teeth, n being a non-zero natural integer, a holding lever comprising a notched portion, said holding lever being movable in rotation along a second axis of rotation between an active position in which the notched portion of said holding lever engages with the first external toothing of the storage gear, prohibiting the rotation of said memory gear, so that the dispositi storing memory stores the longitudinal position of the seat, and an inactive position in which said notched portion is away from said first external toothing, allowing the rotation of said storage gear. Document WO9932324 describes an example of such a storage device, adapted to memorize a longitudinal position of a vehicle seat and make it possible to recover said stored longitudinal position at the seat after a displacement of said seat for access to the rear seats. However, such a device is dedicated to a predetermined slide pattern. This unique association, a storage device for a slide model, is expensive and requires complex inventory management. The present invention is intended to overcome these disadvantages. DESCRIPTION OF THE INVENTION To this end, the storage device according to the invention is characterized in that it further comprises a selection mask linked in rotation to the storage gear and comprising a first notch prevention zone having a succession notches notching and notching notches such that said selection mask provides access to the toothed portion of the lever holding teeth na of the first external toothing of the storage pinion, a being a non-zero natural integers less than not.

Thanks to these arrangements, the storage device is adapted to be placed on at least two different slide models. In various embodiments of the invention, one or more of the following arrangements may be used: the selection mask is rotatable along the first axis of rotation between a first position and the at least a second position, the selection mask giving access to the notched portion of the retaining lever 30 na teeth of the first external toothing of the storage pinion when said selection mask is in first position and nb teeth of said first external toothing when said selection mask is in the second position, b being a non-zero natural integer less than n 35 and different from a; the selection mask gives access to the toothed portion of the n / c teeth holding lever of the first external toothing of the storage gear when said selection mask is in the first position, where c is a non-zero natural integer; - The selection mask provides access to the notched portion of the n / d of the holding lever of the first external toothing of the storage pinion when said selection mask is in the second position, d being a non-zero natural integers different from c; - The holding lever further comprises at least a first tab extending opposite the first notch locking zone of the selection mask, said first tab allowing a rotation of said lever holding the inactive position to the active position when said first tab is in opposition with a notching depression of the first notching prevention zone and prohibiting the rotation of said inactive position holding lever to the active position when said first tab is in opposition to a prohibition top notching said first notching zone; - The storage pinion further comprises a second notching prevention zone having a succession of locking notches of notching and notching recesses, said locking notches of notching having an angular offset with those with the vertices of notching. prohibition of notching of the first notching zone of the selection mask; the holding lever comprises at least one second lug extending opposite the second lockout locking zone of the storage gear, said second lug allowing the rotation of said holding lever from the inactive position to the active position when said second tab is in opposition with a notch of notching crunches of the second locking zone and prohibiting the rotation of said lever holding the inactive position to the active position when said second tab is in opposition with a notch of notching said second non-locking zone; the selection mask is movable in rotation along the first axis of rotation between at least a third position in which said selection mask gives access to the notched portion of the retaining lever with teeth of the first external toothing of the storage gear, e is a non-zero natural integer less than n and different from a and b; the memory pinion comprises at least one series of grooves comprising at least a first groove and a second groove and in which the selection mask comprises a selection finger extending radially to the first axis of rotation, facing the series grooves, the selection mask being secured to the storage gear by anchoring said selection finger in one or the other of the grooves of said series of grooves. Furthermore, the invention also relates to a slide for a vehicle seat comprising: a fixed profile, extending in a longitudinal direction perpendicular to the first axis of rotation, provided with a base and at least one lateral wing extended by at least a reentrant extension extending towards the base, the reentrant extension comprising a series of indentations arranged regularly in the longitudinal direction with a certain pitch, a movable section, slidably mounted along the fixed section and adapted to be secured to the seat to permit movement of said seat in the longitudinal direction, forwards and backwards, - a slide lock movable in a vertical direction, perpendicular to the longitudinal direction, between a locked position wherein the slide lock is engaged with at least one of the indentations of the fixed profile so as to lock the movable profile against fixed profile port, and an unlocked position in which said slide lock is spaced from the fixed profile so as to allow sliding of the movable section relative to the fixed profile, the slide lock being elastically biased towards its locked position, and - a storage device as defined above housed in a housing, said housing being fixed on the movable section.

In various embodiments of the invention, one or more of the following arrangements may be used: said step is either 5 mm, or 6.66 mm, or 10 mm, and wherein the first external toothing of the memory pinion comprises 36 teeth, each tooth representing a slide travel of 1.66 mm; the slide further comprises a lifter biased toward a rest position in which it does not interfere with the slide lock and adapted to be manually moved to an actuating position in which said lifter moves the slide lock towards the unlocked position, and wherein the holding lever of the storage device further comprises an elastic tab 30 adapted to move said holding lever from the active position to the inactive position when the lifter is in the actuating position; - The holding lever further comprises a groove, said slide further comprising an unlocking cable at least partially wound in said groove of the holding lever, said unlocking cable being movable between a release position and an extended position in which said unlocking cable prevents the lever from moving from its active position to its inactive position. Furthermore, the invention also relates to a vehicle seat comprising a seat and at least one slide as defined above, the seat being secured to the movable section of the slide. Of course, the various features, variations and / or embodiments of the present invention may be associated with each other in various combinations to the extent that they are not incompatible or exclusive of each other. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be better understood and other features and advantages will become apparent upon reading the following detailed description comprising embodiments given by way of illustration with reference to the accompanying figures, presented as nonlimiting examples, which may serve to complete the understanding of the present invention and the disclosure of its realization and, where appropriate, contribute to its definition, in which: - Figure 1 is a schematic view of a seat according to the invention, - Figure 2 is a perspective view of a slide according to the invention, adapted to equip the seat of Figure 1, - 3 is a sectional view along the axis III- III of Figure 2, - Figure 4 is a sectional view along the axis IV-IV of Figure 2, the holding lever being in the active position, - Figure 5 is a sectional view along the axis VV of Figure 2, the maintaining sink being in the active position, - Figure 6 is a sectional view along the axis IV-IV of Figure 2, the holding lever being in the inactive position, - Figure 7 is a section along the axis IV-IV of Figure 2, the selection mask being in a second position; - Figure 8 is an exploded view in perspective of the storage device and the control device; - Figures 9 and 10 are partial views of exploded in perspective of the storage device, Detailed description of the invention It should be noted that in the figures, the structural and / or functional elements common to the various embodiments may have the same references. Thus, unless otherwise stated, such elements have identical structural, dimensional and material properties. For the sake of clarity, only the elements useful for understanding the described embodiments have been shown and will be detailed. In the following description, when reference is made to absolute position qualifiers, such as the terms 'forward', 'back', 'up', 'down', 'left', 'right', and so on. , or relative, such as the terms 'above', 'below', 'above', 'below', etc., or with qualifiers for orientation, reference is made to a seat in a normal position of use of it in the direction of ordinary progression of the vehicle. FIG. 1 is a diagrammatic view of a seat S, in particular a motor vehicle seat S, which comprises a seat A mounted on a fixed structure, in particular a floor P of the vehicle, and a backrest D mounted on the seat. A. The seat A is connected to the floor P by at least one slide 1, in particular at least two slides 1, in particular two parallel runners 1, of which only one is visible in FIG. 1. The slideway 1, respectively the runners 1, makes it possible to adjust the position of the seat S with respect to the floor P by sliding in a longitudinal direction X of the slideway 1, in particular in a first direction X1 (in this case towards the rear) and in a second direction direction X2, opposite the first direction X1 (in this case forward). Each slide 1 comprises a fixed section 2 and a movable section 3 mounted sliding relative to each other in the longitudinal direction 15 X, the fixed profile 2 being able for example to be fixed to the floor P of the vehicle and the movable section 3 for example can be fixed to the seat A of the seat S. Each slide is provided with a slide lock 4 (Figure 3) comprising teeth (not shown). Said slide lock 4 makes it possible to selectively lock or unlock the movable section 3 on the section 2 in order to immobilize the seat S, or to allow it to slide forwardly and rearwardly in the longitudinal direction X. The locks 4 of the two slides can be actuated simultaneously by a control member such as a rudder 5 which can be manually actuated in an unlocking angular direction 5a to an actuating position in which it unlocks the slide lock 4 and is biased 30 resiliently in the opposite direction to a rest position in which it does not interfere with the slide lock 4. Furthermore, the backrest D is pivotally mounted on the seat A about an axis of rotation Y3, perpendicular to the longitudinal direction X, by means of at least one hinge mechanism (not shown), known per se. . This hinge mechanism can be actuated by a user to adjust the inclination of the backrest D, for example by means of a rotary handle or other. In addition, the backrest D can also be released to switch completely forward, for example by operating a handle 6, which allows to tilt forward the folder D, in the direction of the arrow 7. The means for to release the file D in order to tilt it forward are known per se, and the man will find many examples in the state of Finally, the file D is coupled to a command 11 access rear seats, tilting file D forward frees the craft in the art. This coupling can be obtained for example by using an unlocking cable 8, for example an unlocking cable 8 sliding in a sheath, a first end of this cable being fixed to the file D. Thus, by tilting forward the backrest D and sliding the seat S forward, the user can access the space behind the seat S in the vehicle, for example to access the rear seats of the vehicle s' it is a vehicle with only two side doors.

As represented in FIGS. 2 and 3, the fixed profile 2 of each slideway may be, for example, in the form of a metal section with a substantially U-shaped cross section, comprising a bottom 2a and two lateral wings 2b, 2c whose respective ends are folded inwards. The two lateral wings 2b, 2c further comprise indentations 2d arranged regularly along the longitudinal direction X with a constant pitch P. The pitch P is, for example, 5 millimeters.

Alternatively the pitch P is, for example, 6.66 millimeters. Alternatively, the pitch P is, for example, 10 millimeters. The movable section 3 may be in the form of a metal profile also in U-section having a substantially horizontal upper wall 3a opposite the bottom 2a and two lateral wings 3b, 3c whose respective ends are for example folded towards outside.

The movable section 3 is here fitted into the fixed profile 2, these two profiles defining together an interior space 9. In this interior space is housed the slide lock 4. The slide lock 4 comprises at least one tooth.

The slide lock 4 is mounted in a vertical direction Z, perpendicular to the longitudinal direction X, so as to selectively engage and disengage the teeth of the latch 4 of the indentations 2d. The slide lock 4 is biased resiliently towards the locked position, so as to engage the teeth of said latch 4 in the indentations 2d of the movable section 3. Furthermore, a support plate 10, for example made of cut sheet metal and folded, can be fixed by any known means on the movable section 3 of one of the rails 1 of the seat, in particular on its upper wall 3a. The support plate 10 supports the rear-seat access control device 11 which comprises: a control arm 12 extending in a transverse direction Y, perpendicular to the longitudinal direction X, axially movable between a high position and a low position, the control arm 12 being resiliently biased towards its upper position, - an unlocking lever 13, extending in the longitudinal direction X between a first end integral with the spreader bar 5 and a second end secured to the control arm 12, - a rear access control cam 14 secured to the support plate 10 by means of a pin, - the aforementioned unlocking cable 8, a second end of this cable being fixed to the cam 14. The unlocking cable 8 is movable between a relaxed position and a tensioned position when a user wishes to access the rear seats. forwardly biasing the backrest D. In the extended position, said unlocking cable 8 pulls the rear seat access control cam 14, so that said cam is moved from a lock position to a unlock position. The rear seat access control cam 14 further comprises a central recess 14a, the control shaft 11 passing through said central recess 14a. The rear seat access control cam 14 is rotatable about a fourth axis of rotation Y4, parallel to the axis of rotation Y3, between its locking position and its unlocking position in which said cam of Rear seat access control 14 moves the control arm 12 from its high position to its low position, so that said control arm 12 moves the unlocking lever 13 from an inactive position to an active position. The fourth axis of rotation Y4 passes through the pawn. Said rear seat access control cam 14 is biased resiliently towards its locking position by means of a return spring 15. The return spring 15 has a stiffness K1. The unlocking lever 13 is movable between its inactive position and its active position in which it moves the lifter 5 from its rest position to its actuating position, so that the slide lock 4 is moved to the unlocked position. As shown in FIG. 2, the slider 1 further comprises a storage device 20 with an external memory. Said storage device 20 comprises a state of rest, a state of comfort setting in which it memorizes a position of comfort of the seat S, set by a user, and a state of access to the rear seats in which it allows to find said position of memorized comfort. The storage device 20 is housed in a housing 21, said housing 21 comprising a fixed support plate 22 fixed to the support plate 10, for example by screws 23.

The storage device 20 comprises a storage gear 30, a selection mask 50 and a holding lever 60. The storage gear 30 is rotatably mounted about a first axis of rotation Y1, and comprises: plate 31 in the general shape of a flat disc arranged coaxially with the first axis of rotation Y1. an annular hub 45, and an axial recess 49. The spherical general shape of the plate 31 comprises a first annular portion 32 situated between a first circular outer edge 33 of the storage pinion 30 and a shoulder 34, a second portion 35. The first portion 32 of the plate 31 comprises at least one series of grooves 37 comprising, for example, a first external groove 37a and a second groove 37b external able to receive. a selection finger 58 of the selection mask 50. Alternatively, the series of grooves 37 comprises a third external groove 37c. Alternatively, the first portion 32 of the plate 31 comprises three series of grooves 37, regularly distributed around the first portion 32, for example every 120 °. The second part 35 comprises a first external toothing 38 and a second circular notching zone 39. The first external toothing 38 comprises n teeth 40, where n is a non-zero natural integer. In the embodiment shown, the first external toothing 38 comprises thirty-six teeth 40 each forming a pitch of 1.66 millimeters. The second lockout zone 39 comprises a succession of notch locking vertices 41 and detent recesses 42. The annular hub 45 is located between the second outer edge 36 and a third outer edge 46. The annular hub 45 comprises a second external toothing 47. The selection mask 50, generally disk-shaped, comprises: - a central recess 51 comprising an inner edge, - a first circular notching zone 52, and - the finger selecting member 58 radially projecting from the inner edge of the first axis of rotation Y1. The selection mask 50 is mounted on the storage gear 30, the inner edge 53 of the central recess 51 of said selection mask 50 being in contact with the first portion 32 of said storage gear 30. The first prohibition area notch 52 has a succession of notches 54 for notching and for notching notches 55. Said notches 54 for notching have an angular offset with the notches of notching 41 of the second prohibition zone The selection finger 58 extends in register with the serie 5 of grooves 37 of the storage gear 30, said selection finger 58 being intended to be anchored alternately in one or the other of the grooves 37a, 37b, 37c of said series of grooves 37. In the embodiment shown, the selection mask 50 comprises three selection fingers 58 regularly distributed over the b 53 of the central recess 51, for example every 120 °, each of the selection fingers 58 extending opposite a series of grooves 37. The selection mask 50 is integral in rotation with the memory pinion. 30 and is movable around the axis of rotation Y1 between at least a first position (FIG. 4) in which each of the selection fingers 58 is anchored in the first groove 37a of each of the series of grooves 37, a second position (FIG. 7) in which each of the selection fingers 58 is anchored in the second groove 37b of each of the series of grooves 37, and a third position, not shown, in which each of the selection fingers 58 is anchored in the third groove 37c of each of the series of grooves 37. During the assembly of the storage device 20, a choice of initial position between the first position, the second position and the third position of the selection mask. 50 is done. This initial position may be reversible or irreversible. Alternatively, the storage device 20 may comprise several selection masks 50 located next to each other in the transverse direction Y. The selection masks 50 are movable around the axis of rotation Y1 integrally or independently of each other. other.

The holding lever 60 comprises a central arm 61 extending in the transverse direction Y between a first end 61a and a second end 61b. The holding lever 60 comprises a first portion 62 extending in an arc of a circle centered on the transverse direction Y between a first end 62a integral with said central arm 61, for example the first end 61a of said central arm 61, and a second end 62b free. The first portion 62 comprises a groove 63 adapted to receive a portion of the unlocking cable 8. The holding lever 60 further comprises a second portion 65 extending in an arc of a circle centered on the transverse direction Y between a first portion 15 end 65a secured to said central arm 61, for example the second end 61b of said central arm 61, and a second end 65b free. The second portion 65 comprises a notched portion 66 extending opposite the first external toothing 38 of the storage gear 30. The notched portion 66 comprises at least one tooth 67, and for example three teeth 67, adapted to engage with the tines 40 of the first external toothing 38. The second portion 65 further comprises at least one first tab 68, and for example a first tab 68 and a second tab 69 extending on either side of the notched portion 66, the first tab 68 extending opposite the first notching prevention zone 52 and the second tab 69 extending opposite the second notching prevention zone 39. The first tab 68 and The second tab 69 has, for example, a length greater than the teeth 67 of the notched portion 66. The holding lever 60 is rotatable about a second axis of rotation Y2, parallel to the first axis of rotation Y1, axis of rotation Y3 and the fourth axis of rotation Y4 between an active position (Figure 4) and an inactive position (Figure 6). In the active position, the notched portion 66 of the holding lever 60 is engaged with the first external toothing 38 of the storage pinion 30, the first tab 68 of the holding lever 60 is engaged in one of the notch recesses 55 of the first notch zone 52 of the selection mask 50 and the second leg 69 of the holding lever 60 is engaged in one of the notch recesses 42 of the second notch prevention zone 39 of the storage pinion 30 (FIG. ). In the active position, the holding lever 60 prohibits the rotation of the storage gear 30. In the inactive position, the notched portion 66 of the holding lever 60 is away from the first external set of teeth 38 of the storage gear 30. first lug 68 of the holding lever 60 is away from the first lockout zone 52 of the selection mask 50 and the second lug 69 of the holding lever 60 is away from the second prohibition zone in the inactive position, the holding lever 60 authorizes the rotation of the storage pinion 30. The holding lever 60 further comprises an elastic tongue 70 extending substantially in a circular arc. centered on the transverse direction Y between a first end 70a integral with said central arm 61 and a second end 70b integral with the control arm 12 of the control device 11 for access to the rear seats. The tongue 70 is adapted to move said holding lever 60 from its active position to its inactive position, so that the notched portion 66 is disengaged from the first external toothing 38 of the storage pinion 30. Said tongue 70 is elastically deformable. Said tab 70 has a stiffness K2 35 and said stiffness K2 is preferably significantly greater than the stiffness K1 of the return spring 15 of the rear access control cam 14 to ensure complete disengagement of said notched portion 66 of said first external toothing 38.

The storage device 20 further comprises a memory position indexer 80, a multi-turn slider 90 abutting on the housing 21, at least one pinion 95, a winding ring 110 and a memory cable 100. The indexer memory position 80 is rotatably mounted about the axis of rotation Y1, and comprises: - a first plate 81 generally in the form of a flat disc disposed coaxially with the axis of rotation Y1, a second plate 82 in the form of a disk general flat disc disposed coaxially with the axis of rotation Y1, and 15 - an axial recess 83. The first plate 81 has an outer surface 81a. The first plate 81 comprises a lug 84 extending from the outer surface 81a, radially to the first axis of rotation Y1. The lug 84 is adapted to abut against the multi-turn slider 90, this position is referred to as the reference position. The memory position indexer 80 is held in abutment against the multiturn slider 90 by a first assist spring 85. The memory position indexer 80 is rotatable in a first direction of rotation S3 in which it leaves its position. reference and tends the first assistance spring 85 and is rotatable in a second direction of rotation S4, opposite to the first direction of rotation S3, in which it returns to its reference position under the action of the first spring 85. The first plate 81 further comprises, for example, at least one anchor finger 86 extending in the transverse direction Y, facing the second plate 82, and comprising a non-through hole 87 central. In the embodiment shown, the first plate 81 comprises four anchoring fingers 86 each comprising a central non-through hole 87. The second plate 82 comprises at least one point 88 extending in the transverse direction Y, opposite said at least one anchor finger 86, and adapted to fit into said non-through hole 87. In the embodiment shown, the second plate 82 comprises four points 88 each extending opposite one of the anchoring fingers 86.

The axial recess 83 comprises at least one notch, and in the embodiment shown four notches, adapted to each receive a pinion 95 and secure each of said gears 95 in rotation about the first axis of rotation Y1.

The memory cable 100 extends between a first end 101 integral with a hook of a second end 102 integral with the winding 110. The fixing hook the fixed profile 2.

The winding ring 110 is fastening 103, and the ring gear 103 is fixed on a rotatably mounted, about the first axis of rotation Y1, in a first direction of rotation S1 and in a second direction of rotation S2, opposite the first direction of rotation S1. When the winding ring gear 110 rotates in the first direction of rotation S1, the memory cable 100 winds in said winding ring 110 under the action of a second assist spring 111. When the winding crown 110 rotates in the second direction of rotation S2, the memory cable 100 unwinds from said winding ring 110 by tending the second assist spring 111. The winding ring 110 further comprises, for example, an internal toothing 112 The storage gear 30, the at least one pinion 95, the winding ring 110 and the memory position indexer 80 form a reduction stage 120 similar to an epicyclic gear train. The storage gear 30 forms the sun gear. The at least one pinion 95, and in the embodiment shown the four pinions 95, each comprise an external toothing 96 and are rotatable about a fifth axis of rotation Y5, parallel to the first axis of rotation Y1. The at least one pinion 95 forms a satellite. The winding crown 110 forms the crown. The memory position indexer 80 forms the carrier.

The second external toothing 47 of the storage gear 30 is engaged with the external toothing 96 of each of the at least one pinion 95. The at least one pinion 95 is fixed on the memory position indexer 80 and the external toothing 96 of each of said at least one pinion 95 is engaged in the internal toothing 112 of the winding crown 110. The device which has just been described operates as follows. When the storage device 20 is in a state of rest, the holding lever 60 is in the active position (FIG. 4), preventing the rotation of the storage gear 30. The notched portion 66 of the holding lever 60 is engaged in the first external toothing 38 of the storage pinion 30, the first tab 68 of the holding lever 60 is engaged in the first notching prevention zone 52 of the selection mask 50 (FIGS. 4 and 7) and the second tab 69 of the locking lever Hold 60 is engaged in the second lockout zone 39 of the storage gear 30 (FIG. 5). The holding lever 60 is held in the active position by the tension exerted by the unlocking cable 8 on the groove 63 of said holding lever 60 under the action of the return spring 15 of the rear access control cam 14 The memory position indexer 80 abuts the multi-turn slider 90 and said multi-turn slider 90 abuts the housing 21. The first assist spring 85 holds the memory position indexer under pressure 80 on the multi-turn slider 90.

The winding ring 110 of the memory cable 100 is immobilized in rotation by the locking of the positioning pinion 30 and the locking of the memory position indexer 80 on its stop. When the user wishes to adjust the longitudinal position of the seat S, he moves the storage device 20 into a comfort setting state. For this, the user actuates the lifter 5 in the unlocking angular direction 5a to the operating position of the lifter 5, so that said lifter 5 unlocks the slide lock 4. In the actuating position, the lifter 5 moves the unlocking lever 13 from its inactive position to its active position, so that said unlocking lever 13 moves the control arm 12 from its upper position to its lower position. In the low position, the control arm 12 moves the tongue 70 of the holding lever 60, so that said tongue 70 moves the holding lever 60 from its active position to its inactive position (FIG. 6). The storage gear 30 is free to rotate about the first axis of rotation Y1. The movement of the holding lever 60 from its active position to its inactive position generates a pull back of the unlocking cable 8, causing a rotation without consequence of the access control cam to the rear seats 14 of its locking position in its unlocking position. The user can then proceed to the longitudinal adjustment of the seat S of a motor vehicle. The storage gear 30 is free to rotate and the memory position indexer 80 is fixed. The reduction stage is similar to an epicyclic gear train with locked carrier. The displacement of the seat S causes the winding or unwinding of the memory cable 100 according to the direction and the slide travel 1 carried out, in the winding ring 110 by the rotation of said winding ring 110. When the user has chosen its comfort position, it releases the lifter 5, so that the holding lever 60 moves from inactive position to its active position. When the teeth of the latch 4 are in phase with the indentations 2d of the fixed profile 2, the teeth 67 of the notched portion 66 of the holding lever 60 fall in front of the teeth bottoms of the storage pinion 30, holding 60 is in front first external toothing 38 of the first tab 68 of the lever of a notch depression 55 of the first notch prevention zone 52 of the selection mask 50 and the second tab 69 of the holding lever 60 is in front of a latching recess 42 of the second stall prevention zone 39 of the storing gear 30. The holding lever 60 moves to the active position and ensures a good locking of the storing pinion 30. The new comfort position is then memorized by the storage device 20. When the teeth of the latch 4 are not in phase with the indentations 2d of the fixed profile 2, the first tab 68 of the holding lever 60 is opposite a notch of notching54 of the first lockout zone 52 of the selection mask 50 30 and / or the second lug 69 of the holding lever 60 is opposite a notch of the notch 41 of the second prohibition zone of notch 39 of the storage gear 30. The holding lever 60 can not move from its inactive position to its active position. Thus, an unwanted rear-seat access when the user moves the seat S forwards or a jump of the hold-down lever 60 when the user moves the seat S rearward is avoided. When the storage device 20 is placed on a slider having a pitch P of 5 millimeters, the selection mask 50 is in the first position. The first lockout zone 52 of the selection mask 50 and the second lockout zone 39 of the storage gear 30 then allow access to the notched portion 66 to, for example, twelve teeth 40 out of the thirty three teeth 40 of the first external toothing 38, in the proportion of one tooth out of three, in order to prevent the teeth of the slide lock 4 from being opposite the indentations 2d of the fixed section 2. 15 Alternatively, when the storage device 20 is placed on a slide having a pitch P of 10 millimeters, the selection mask 50 is in the second position. The first lockout zone 52 of the selection mask 50 and the second lockout zone 39 of the storage gear 30 allow access to the notched portion 66 at, for example, six teeth 40 of the thirty-three six teeth 40 of the first external toothing 38, in the proportion of one tooth out of six, in order to prevent the teeth of the slide lock 4 from being opposite the indentations 2d of the fixed section 2. Alternatively, when the storage device 20 is placed on a slide having a pitch P of 6.66 millimeters, the selection mask 50 is in third position. The first lockout zone 52 of the selection mask 50 and the second lockout zone 39 of the storage gear 30 provide access to the toothed portion 66 at, for example, nine teeth 40 of the thirty-five six teeth 40 of the first external toothing 38, in the proportion of one tooth out of four, in order to prevent the teeth of the slide lock 4 from facing the indentation 2d of the fixed profile 2. When the user wants to access the rear seats, it moves the storage device 20 in a rear access status. For this, the user actuates the unlocking cable 8 and toggles the backrest D of the seat S. In the extended position, said unlocking cable 8 keeps the holding lever 60 in the active position, so that the rotation of the storage gear 30 is prohibited. The release cable 8 also pulls on the rear seat access control cam 14 in order to move said access control cam to the rear seats 14 from its locking position to its unlocked position. Said rear seat access control cam 14 then moves the control arm 12 from its high position to its low position, so that said control arm 12 moves the unlocking lever 13 from its inactive position to its active position. In the active position, the unlocking lever 13 moves the rudder 5 in the unlocking angular direction 5a to its actuating position, so that said rudder 5 unlocks the slide lock 4. The seat S can be moved forward. The displacement of the control arm 12 from its high position to its low position causes an elastic deformation of the tongue 70 without rotation of the holding lever 60 from its active position to its inactive position because said holding lever 60 is kept in the active position. by the tension exerted by the unlocking cable 8 on said holding lever 60. When moving the seat S forward, the storage gear 30 is locked in rotation. The reduction stage is similar to an epicyclic gear train with blocked central sun gear. The winding ring 110 rotates in the first direction of rotation S1 and allows the memory cable 100 to wind in said winding ring 110 according to the slide stroke performed. The memory position indexer 80 rotates in the first direction of rotation S3 and leaves its reference position relative to the housing 21 and tends the first assistance spring 85. When the user wishes to return the seat S to the position of memorized comfort, he moves the seat S towards the rear. The storage gear 30 is locked in rotation. The reduction stage is similar to an epicyclic gear train with blocked central sun gear. The winding ring 110 is pulled by the memory cable 100 and rotates in the second direction of rotation S2. The memory position indexer 80 rotates in the direction of rotation S4 under the action of the first assistance spring 85 to return to its reference position relative to the housing 21. When the memory position indexer 80 comes into operation stuck on the housing 21, via the multi-turn slider 90, it stops the rotation of the winding ring 110 causing the tension of the memory cable 100. The displacement of the seat S rearward is stopped by said tension of the memory cable 100 and said seat S returns to its stored comfort position, also called starting position. The user can then toggle the backrest D backward to re-lock said backrest D. The backward tilting of the backrest D cancels the tension in the unlocking cable 8, moving said unlocking cable 8 from its extended position to his position of relaxation. In release position, the release cable 8 allows the displacement of the access control cam to the rear seats 14 from its unlocked position to its locking position 35 under the action of the return spring 15. The displacement of the Rear access control cam 14 in the locked position causes the control arm 12 to move from its low position to its high position, so that said control arm 12 allows the unlocking lever 13 to move towards its position. inactive position. The unlocking lever 13, in the inactive position, allows the spreader 5 to move towards its rest position, so that said spreader 5 allows the teeth of the slide lock 4 to engage in the indentations 2d of the fixed profile 2. The seat S is then re-locked in the stored comfort position. The user can alternatively tilt the backrest D before the seat S reaches the stored comfort position. Said tilting of the backrest D towards the rear allows the movement of the spreader 5 towards its rest position, so that, as explained above, the teeth of the slide lock 4 are allowed to engage in the indentations 2d of the fixed profile 2 The seat S is then re-locked in a new position different from the stored comfort position and the memory position indexer 80 comes to rest in an intermediate position. The user recovers the memory comfort position when, once again, he tilts forward the folder D to access the rear seats. Alternatively, the user can perform a new comfort adjustment by operating the lifter 5. When unlocking the storage gear 30 by actuating said lifter 5, the memory position indexer 80 is recalled by the first assistance spring 85 and returns to its reference position relative to the housing 21. The storage device 20 recovers all of its memory function and stores a new comfort position.

Of course, the invention is not limited to the embodiments described above and provided solely by way of example. It encompasses various modifications, alternative forms and other variants that may be considered by those skilled in the art in the context of the present invention and in particular any combination of the different modes of operation described above, which can be taken separately or in combination.

Claims (14)

REVENDICATIONS1. Storage device (20) adapted for storing a longitudinal position of a vehicle seat (S) and making it possible to recover said stored longitudinal position at the seat (S) after a displacement of said seat, said storage device comprising: - a pinion storage device (30) rotatably mounted about a first axis of rotation (Y1) and adapted to be rotated during an adjustment of the longitudinal position of the seat and comprising a first external toothing (38) of n teeth (40) , n being a non-zero natural integer, - a holding lever (60) comprising a notched portion (66), said holding lever being rotatable along a second axis of rotation (Y2) between an active position in which the notched portion (66) of said holding lever engages with the first external toothing (38) of the storage gear (30), preventing rotation of said storage gear, so that the device storing memory stores the longitudinal position of the seat, and an inactive position in which said notched portion is away from said first external toothing, allowing the rotation of said storage gear, characterized in that the storage device further comprises a selection mask (50) rotatably connected to the memory pinion (30) and including a first notch prevention zone (52) having a succession of notch locks (54) and notch cavities (55). ) such that said selection mask (50) gives access to the toothed portion (66) of the tooth holding lever (60) with teeth (40) of the first external toothing (38) of the storage gear (30), being a nonzero natural integers less than n. The storage device (20) according to claim 1, wherein the selection mask (50) is rotatable about the first axis of rotation (Y1) between a first position and at least a second position, the selecting (50) providing access to the notched portion (66) of the tooth holding lever (60) with teeth (40) of the first external toothing (38) of the storage gear (30) when said selection mask is in first position and nb teeth of said first external toothing when said selection mask is in second position, b being a non-zero natural integer less than n and different from a. 15 3. A storage device (20) according to claim 2, wherein the selection mask (50) gives access to the notched portion (66) of the holding lever (60) with n / c teeth (40) of the first set of teeth. external (38) of the storage gear (30) when said selection mask is in the first position, where c is a non-zero natural integer. 4. A storage device (20) according to claim 3, wherein the selection mask (50) gives access to the notched portion (66) of the n / d (25) holding lever (60) of the first external gear (38) of the memory gear (30) when said selection mask is in the second position, d being a non-zero natural integer different from c. 30 The storage device (20) according to any one of the preceding claims, wherein the holding lever (60) further comprises at least a first tab (68) extending opposite the first prohibition zone of notching (52) of the selection mask (50), said first leg permitting rotation of said inactive position holding lever to the active position when said first leg is in opposition to a re-initialization zone (55) of the first zone prohibition of notching (52) and prohibiting the rotation of said inactive position holding lever to the active position when said first tab is in opposition to a no-go zone (54) of said first notch prevention zone (52). 6. A storage device (20) according to any one of the preceding claims, wherein the storage pinion (30) further comprises a second notch prevention zone (39) having a succession of locking notches locking (41) and latching recesses (42), said latching notches (41) having an angular offset with the notch-latching tops (54) of the first notch-latching zone (52) of the selection mask (50). 7. A storage device (20) according to claim 6, wherein the holding lever (60) comprises at least a second lug (69) extending opposite the second locking zone of notching (39) of the pinion storage device (30), said second tab permitting the rotation of said inactive position holding lever to the active position when said second tab is in opposition to a notching depression (42) of the second notching prevention zone (39). ) and prohibiting the rotation of said inactive position holding lever to the active position when said second tab is in opposition to a notch prevention peak (41) of said second notch prevention zone (39). Storage device (20) according to claim 2 or any of claims 3 to 7 according to claim 2, wherein the selection mask (50) is rotatable about the first axis of rotation (Y1). between at least a third position in which said selection mask provides access to the toothed portion (66) of the toothed holding lever (60) (40) of the first external toothing (38) of the storage gear (30), e being a non-zero natural integer less than n and different from a and b. The storage device (20) according to any one of the preceding claims, wherein the storage gear (30) comprises at least one series of grooves (37) comprising at least a first groove (37a) and a second groove ( 37b) and wherein the selection mask (50) comprises a selection finger (58) extending radially to the first axis of rotation (Y1), facing the series of grooves, the selection mask being secured to the pinion of storing by anchoring said selection finger in one or the other of the grooves of said series of grooves. Vehicle seat slide (1) comprising: - a fixed profile (2), extending in a longitudinal direction (X) perpendicular to the first axis of rotation (Y1), provided with a base (2a) and a at least one lateral flange (2b, 2c) extended by at least one reentrant extension extending towards the base (2a), the reentrant extension comprising a series of indentations (2d) arranged regularly in the longitudinal direction (X) with a certain pitch (P), - a movable section (3), slidably mounted along the fixed profile (2) and intended to be secured to the seat to allow movement of said seat in the longitudinal direction (X), towards the forward and rearwardly, - a slide lock (4) movable in a vertical direction (Z), perpendicular to the longitudinal direction (X), between a locked position in which the slide lock is engaged with at least 5 a indentations (2d) of the fixed profile (2) so as to block the movable profile (3) relative to the fixed profile (2), and an unlocked position in which said slide lock (4) is spaced from the fixed profile (2) so as to allow the sliding section (3) to slide by 10 relative to the fixed profile (2), the slide lock (4) being biased resiliently towards its locked position, and - a storage device (20) according to any one of the preceding claims housed in a housing (21), said housing being fixed on the movable section (3). 11. Slide (1) according to claim 10, wherein said pitch (P) is either 5 mm, or 6.66 mm, or 10 mm, and wherein the first external toothing (38) of the memory pinion (30) ) includes 36 teeth, each tooth representing a slide travel of 1.66 mm. 12. Slider (1) according to any one of claims 10 to 11, further comprising a spreader (5) biased towards a rest position in which it does not interfere with the slide lock (4) and adapted for manually moved to an operating position in which said lifter (5) moves the slide lock to the unlocked position, and wherein the holding lever (60) of the storage device (20) further comprises a elastic tongue (70) adapted to move said holding lever (60) from the active position to the inactive position 35 when the lifter is in the actuating position. 13. Slide (1) according to the preceding claim, wherein the holding lever (60) further comprises a groove (63), said slide further comprising an unlocking cable (8) at least partially wound in said groove holding lever (60), said unlocking cable (8) being movable between a release position and a tensioned position in which said unlocking cable prohibits the movement of the lever 10 from maintaining its active position to its inactive position. 14. Vehicle seat comprising a seat (A) and at least one slide (1) according to any one of claims 10 to 13, the seat (A) being secured to the movable section (3) of the slideway.