FR3031708A1 - OBJECT RECEIVING SYSTEM BEHIND A SEAT BACK OF A MOTOR VEHICLE - Google Patents

Abstract

The invention relates to a system (1) comprising: a first support (3) hinge disposed on the back of said folder; an object receiving shelf (4) articulated with respect to said first support according to a first transverse axis (5); a second support (6) hinge disposed on the back of said folder or said tablet; a crossmember (7) for holding said shelf in the use position, a first end (8) of said cross member being mounted in articulation with said second support along a second transverse axis (9); a rail (10) slidably guiding the second end (15) of said cross member, said rail being disposed upside down of said shelf or backrest and being arranged so that said second end abuts the end (11); ) before or above said rail when said tablet is in use position; an abutment (12) disposed on said first support offset radially from said first axis; a reciprocal abutment (13) disposed on said shelf so as to come into contact with said abutment when said shelf is placed in the position of use, so that said shelf is locked in rotation upwards beyond its position; use.

Description

The invention relates to an object receiving system behind a motor vehicle seat back and a seat comprising such a system. It is known to provide an object receiving system disposed behind a motor vehicle seat back, said system comprising: a first articulation support disposed on the back of said backrest; an object receiving tablet articulated relative to said first support according to a first transverse axis, so that said tablet can pass reversibly from a horizontal position of use to a lowered storage position where it is disposed substantially against said backrest, - a second articulation support arranged in reverse of said backrest or of said tablet, - a support crossmember said tablet in the use position, a first end of said cross member being mounted in articulation with said second support along a second transverse axis, - a sliding guide rail of the second end of said cross member, said rail being disposed upside down of said shelf or said backrest and being arranged so that said second end abuts against the front or upper end of said rail when said shelf is in use position. With such an arrangement, there is the possibility that the user, especially when it is a child, suddenly actuates the tablet in recovery from its position of use. The transmission of forces at the first support is then essentially at the first axis, which can lead to a degradation of the system.

To reinforce the strength of the system, it could be envisaged to oversize the area of rotation of the tablet, but such a solution can lead to an unsightly size and / or incompatible with an optimal retraction of the tablet in storage position. The invention aims to provide an arrangement to strengthen the system in case of abrupt recovery of the tablet from its position of use, and at less space and with proven efficiency. For this purpose, and according to a first aspect, the invention proposes an object receiving system behind a motor vehicle seat back, said system comprising: a first articulation support disposed on the back of said backrest, a tablet object-receiving member articulated with respect to said first support according to a first transverse axis, so that said tablet can reversibly pass from a horizontal position of use to a lowered storage position where it is disposed substantially against said backrest, - a second articulation support disposed on the backside of said backrest or said tablet, - a crossmember for holding said tablet in the use position, a first end of said cross member being mounted in articulation with said second support along a second transverse axis, - a sliding guide rail of the second end of said cross member, said rail being disposed in reverse of said tab or said backrest and being arranged so that said second end abuts against the front or upper end of said rail when said tablet is in the use position, said system further comprising: a stop disposed on said first support; radial offset with respect to said first axis; - a mutual abutment disposed on said shelf so as to come into contact with said abutment when said shelf is placed in the position of use, so that said shelf is locked in rotation upwards; beyond its use position both by abutment of said second end on said front end or top of said rail and said abutment on said reciprocal abutment.

In this description, the terms of positioning in the space (top, bottom, longitudinal, transverse, front, horizontal, vertical, top, top, height, lateral, ...) are taken in reference to the system arranged in the vehicle, the tablet being in use position.

With such an arrangement, the transmission of forces at the first support is distributed at the first axis and at the stop and abutment reciprocal. Such an arrangement therefore makes it possible to reinforce the system and to limit the risk of its damage when the user suddenly actuates the shelf in recovery from its position of use, and this at less space and with a proven efficiency. According to a second aspect, the invention proposes a seat comprising such a system.

Other features and advantages of the invention will appear in the description which follows, made with reference to the attached figures, in which: - Figure 1 is a perspective view of a system according to one embodiment, the tablet being in position d 2 is a side view with partial vertical longitudinal section of the system of FIG. 1 at a first support, the tablet being in the use position. Referring to the figures, there is described an object receiving system 1 behind a motor vehicle seatback 2, said system comprising: a first articulating support 3 disposed on the backside of said backrest; an object articulated with respect to said first support along a first transverse axis, so that said tablet can reversibly pass from a horizontal position of use to a lowered storage position where it is disposed substantially against said backrest, - a second support 6 articulation disposed in reverse of said folder or, in a variant not shown, of said tablet, - a crosspiece 7 for holding said tablet in the use position, a first end 8 of said cross member being mounted in articulation with said second support according to a second transverse axis 9, - a guide rail 10 sliding the second end 15 of said cross, said rail etan t disposed in reverse of said tablet or, in the variant not shown, said folder and being arranged so that said second end abuts against the end 11 before or, in the variant not shown, upper of said rail when said tablet is in the position of use, said system further comprising: - a stop 12 disposed on said first support offset radially with respect to said first axis, - a reciprocal abutment 13 disposed on said shelf so as to come into contact with said abutment when said tablet is placed in the use position, so that said tablet is locked in rotation upwards beyond its position of use both by abutting said second end on said front or upper end of said rail and said stop on said reciprocal stop.

According to the embodiment shown, the system 1 comprises two first supports 3 arranged symmetrically with respect to a longitudinal vertical plane of symmetry of said system. According to the embodiment shown, the radial offset between the abutment 12 and the first axis 5 is between 5 and 20 mm, the measurement of said offset being carried out taking into account the point of contact 20 between the abutment 12 and the reciprocal abutment 13 the farthest of said axis.

According to the embodiment shown, the stop 12 is disposed in front of the first axis 5 and has an abutment surface 14 extending, at least in part, substantially vertically.

According to the embodiment shown, the stop 12 is disposed substantially at the same height as the first axis 5, and in particular, in the embodiment shown, slightly above said axis.

With such a configuration, because of the presence of the cross member 7 whose second end 15 abuts against the end 11 of the rail 10 when the tab 4 is suddenly actuated by lifting from its position of use, the abutment 12 receives a substantially horizontal force towards the front, which makes it possible to partially eliminate the effect of lever arm induced by the rotation of the tablet 4. According to the embodiment shown, the crossbar 7 is based on wire folded into the general shape of U, the free ends 16 of the legs 17 of the U being folded towards one another so as to be positioned in two respective housings 18 provided in the second support 6, the middle part 19 of the U sliding in at least one slot - and in particular two slots in the embodiment shown - forming the rail 10. Not shown, the slot comprises, near the end 11 of the rail 10, a narrowing elastically deformable, said narrowing being of dimension less than the diameter of the rod, so as to allow a locking of the tablet 4 in the use position and its return to the storage position by pressing down on said tablet.

Finally, a motor vehicle seat comprising such a system 1 is described, said system being mounted behind the backrest 2 of said seat.

Claims (7)

REVENDICATIONS1. Object receiving system (1) behind a motor vehicle seat backrest (2), said system comprising: - a first articulating support (3) disposed on the backside of said backrest, - a receiving shelf (4) for an object articulated with respect to said first support according to a first axis (5) transverse, so that said tablet can pass reversibly from a horizontal position of use to a lowered storage position where it is disposed substantially against said backrest, - a second articulation support (6) disposed on the backside of said backrest or said tablet, - a crossmember (7) for holding said tablet in the use position, a first end (8) of said crossmember being mounted in articulation with said second support according to a second transverse axis (9), - a sliding guide rail (10) for the second end (15) of said crossmember, said rail being arranged in reverse of said shelf or said back and being arranged such that said second end abuts against the front or upper end (11) of said rail when said shelf is in the position of use, said system being characterized in that it further comprises: - a stop (12) disposed on said first support offset radially from said first axis, - a reciprocal abutment (13) disposed on said shelf so as to come into contact with said stop when said shelf is placed in position of use, so that said tablet is locked in rotation upwards beyond its position of use both by abutment of said second end on said front or upper end of said rail and said abutment on said reciprocal stop. 2. System according to claim 1, characterized in that the radial offset between the abutment (12) and the first axis (5) is between 5 and 20 mm. 3. System according to one of claims 1 or 2, characterized in that the stop (12) is disposed in front of the first axis (5) and has an abutment surface (14) extending, at least in part, substantially vertically. 4. System according to claim 3, characterized in that the abutment (12) is disposed substantially at the same height as the first axis (5). 5. System according to any one of claims 1 to 4, characterized in that the crossbar (7) is based on folded wire generally U-shaped, the free ends (16) of the legs (17) of the U being folded towards each other so as to be positioned in two housings (18) respectively provided in the second support (6), the middle portion (19) of the U sliding in at least one slot forming the rail (10). 6. System according to claim 5, characterized in that the slot comprises, near the end (11) of the rail (10), an elastically deformable narrowing, said narrowing being of dimension less than the diameter of the rod, so to allow a locking of the tablet (4) in the use position and its return to the storage position by pressing down on said tablet. 7. Motor vehicle seat comprising a system (1) according to any one of claims 1 to 6, said system being mounted behind the backrest (2) of said seat.