Source: https://patents.google.com/patent/DE102007049865B4/en
Timestamp: 2020-04-09 08:22:11
Document Index: 450467875

Matched Legal Cases: ['art 30', 'art 30', 'art 30', 'art 30', 'art 38', 'arts 38', 'art 30', 'art 30', 'arts 38', 'art 30', 'art 30', 'art 30', 'art 54', 'art 30', 'art 30', 'art 30', 'art 30', 'art 30', 'art 94', 'art 30', 'art 100', 'art 100', 'art 100', 'art.\n2007']

DE102007049865B4 - Motor vehicle seat with adjustable seat depth - Google Patents
DE102007049865A1 (en
2007-01-19 Priority to DE102007003757 priority Critical
2007-01-19 Priority to DE102007003757.2 priority
2007-10-18 Priority to DE102007049865.0A priority patent/DE102007049865B4/en
2008-07-24 Publication of DE102007049865A1 publication Critical patent/DE102007049865A1/en
2019-02-21 Publication of DE102007049865B4 publication Critical patent/DE102007049865B4/en
Adjustment device (60) for a seat depth adjustment of a motor vehicle seat, which has a) seating area (20), which has a seat part (30) and a support plate (32), wherein the support plate (32) with the seat part (30) via a guide ( 34) is slidably connected in a longitudinal direction (36), the guide (34) on the one hand a left profile (76) and a right profile (78) and on the other hand, a left counter profile (80) and a right counter profile (82), the left profile (76) and the right profile (78) are respectively adapted and in contact with each counter profile (80, 82) is associated with a running in the same direction rack (84), the teeth (86), wherein the Teeth (86) of the two racks (84) are directed towards each other, and b) has an electric gear motor (62, 64) having a pinion (66), wherein each rack (84) respectively with the pinion (66) of the Gear motor (62, 64) is in drive connection, characterized characterized in that the adjusting device further comprises a flat, substantially rectangular adjustment module (68), which is located between the support plate (32) and the seat part (40), that the adjustment module (68) has a first gear plate (72), which the seat part ( 30), that the adjustment module (68) has a second gear plate (74) associated with the support plate (32), that the left profile (76) and the right profile (78) formed on the first gear plate (72) in that the left mating profile (80) and the right mating profile (82) are formed on the second gear plate (74), and in that the support plate (32) has a front portion (42) forming the front edge of the seat portion (20), in that the rack (84) is in the immediate vicinity of the opposing profile in its side facing away from the teeth (86), and that both the rack (84) and the counterpart profile are arranged in the same plane.
The invention relates to an adjusting device for a seat depth adjustment of a motor vehicle seat according to the preamble of claim 1. Such adjustment is from the DE 198 26 823 C1 known.
In the adjustment after the DE 198 26 823 C1 Are provided for the adjustment gears directly to the support plate, which is called there support member 1b, stored. The adjusting device is open above the support plate upwards. The installation of the adjustment must be done during assembly of the vehicle seat. The support plate must be sufficiently flat and otherwise designed to be suitable for receiving the gears. In particular, the installation of the adjusting device can be difficult to integrate into the processes of manufacturing a motor vehicle seat. For the realization of the adjustment precise holes in the sheet metal parts are necessary, a reliable training each individual adjustment is not to achieve in the prior art construction with the security, as desired by the motor vehicle manufacturers. All in all, the previously known adjusting device is therefore disadvantageous in many respects. In particular, it is not suitable for mass production use.
In the from the DE 196 28 381 A1 Previously known motor vehicle seat, the support plate is inserted into a forwardly open, U-shaped recess of the seat part. The longitudinal guide is formed by a tube and a sliding sleeve. A determination between the support plate and seat part is achieved by a coil spring.
Out DE 698 27 303 T2 is known in its seat depth adjustable vehicle seat, in which a front seat part is adjusted by means of an electric motor relative to a rear seat part. In the from the DE 199 13 503 A1 Prior art vehicle seat, the seating area also has a front portion and a rear portion, which can be positioned by means of an adjustment at different distances from each other, so that the seat depth is adjustable.
Based on the motor vehicle seat of the type mentioned, the invention has the object to improve the prior art motor vehicle seat to the effect that between the seat plate and seat part as easy as possible to assemble and reliable motor drive can be formed. This object is achieved by the features of claim 1.
The adjusting device according to the invention can be extremely flat, it can be made of lightweight materials, such as plastic. It occupies only insignificantly more space in the z-direction than the axial dimension of a gear, preferably has a dimension smaller than twice the axial dimension of the gears.
The adjusting module according to the invention also forms the guide. For this purpose, the left and right profiles and the left and right counter profiles are provided. They are engaged with each other. The engagement in the left area is relatively remote from the engagement in the right area, so that there is a wide base for the support and the guide can absorb high forces.
Preferably, the rack is identical on each side. Preferably, it has a height in the z-direction, which corresponds to the clearance of the two gear plates.
Preferably, in the assembled state, the respective lateral profile engages over the other counter profile or vice versa. In this way, the two gear plates can only be mounted in the longitudinal adjustment direction and can not be separated in the z direction.
In the direction of the longitudinal adjustment, the two gear plates have a dimension which is at least 10% larger than the adjustment in the adjustment, preferably this dimension is at least 30% greater than the adjustment. In a preferred embodiment, the two gear plates are formed separately. In a preferred embodiment, the two gear plates in the x-y plane have approximately the same dimensions, in particular the same dimensions.
Further advantages and features of the invention will become apparent from the other claims and the following description of a non-limiting embodiment of the invention, which will be explained in more detail with reference to the drawings. In this drawing show:
1 .: A side perspective view obliquely from the front, on top of a motor vehicle seat according to the invention,
2 : A plan view of mechanical parts of the seat portion of the motor vehicle seat according to 1 .
3 a cross-section in the xz plane through the center of the seat area in the retracted position (solid lines) and in the advanced position (dash-dotted) of the support plate,
4 a perspective view of a front portion of the seating area according to 2 .
5 : a representation like 4 , but now as a montage picture,
6 : a montage picture similar 5 , but only for one adjustment module,
7 : the adjustment module according to 6 , but now in the assembled state and
8th a sectional view through a sectional plane which is defined by the axes of rotation of the gears and the intermediate gear.
The motor vehicle seat has a seating area 20 , a backrest 22 and a base 24 , The seating area 20 and also the backrest 22 are with a reference 26 , For example, fabric or leather provided. Below this reference 26 there is a cushion body 28 , please refer 3 ,
The mechanical and supporting structure of the seating area 20 has a seat part 30 and a support plate 32 , Both are about a leadership 34 in a longitudinal direction 36 against each other, in the 1 to 3 For example, the two extreme positions are drawn, the position with the shortest seat length is shown in solid lines, the position with the largest seat length is shown in phantom or dashed lines. In the y-direction has the support plate 32 a width that is only about 60% of the width measured in the same direction of the seat part 30 accounts. The support plate 32 is in the position with the shortest seat length almost completely in a forward, so in the x direction, open recess 102 of the seat part 30 , Laterally this recess 102 , so seen in the y-direction, has the seat part 30 a left and a right side part 38 whose top is higher in the z-direction than the support plate 32 , These side parts 38 serve the lateral support of the thighs. The thighs of a user lie on the support plate 32 on, this is wide enough trained.
In the furthest in the x-direction projecting position of the support plate 32 protrudes this clearly opposite the seat part 30 forward. Left and right of the support plate 32 there are cavities 40 , The support plate 32 has a front area 42 , which is the leading edge of the mechanical structure of the seat area 20 forms. At its located in the y-direction front extreme regions is in each case a support wing 44 arranged. He is about a pivot axis 45 hinged, which runs substantially parallel to the z-axis. Alternatively, he can use the support plate 32 be connected. By a (not shown) spring or other elastic means each support wing 44 elastically biased so that a free end 46 of the respective supporting wing 44 to the support plate 32 or in other words to leadership 34 is biased towards. It lies on a sliding or guiding surface 49 on the seat part 30 at. The left wing 44 forms the left front corner of the seating area 20 , the right supporting wing 44 forms the right front corner of the seating area 20 out. In the position with the shortest seat length are the support wings 44 leaving only a small gap on the outer surfaces of the side parts 38 at. In the furthest advanced position of the support plate 32 There is a larger gap and are the support wings 44 slightly stronger in the x-direction than in the case of the shortest seat length.
The supporting wings 44 essentially form the front side edges of the seating area 20 out. They have a profile height in the z direction of at least 30 , preferably 50 mm and essentially a C-profile. They can absorb forces in z direction as they occur in normal operation.
The free ends 46 are sliding on the seat part 30 on the side. Preferably, a lubricant is at the free ends 48 , For example, a plastic layer provided. The free ends 46 show essentially in the longitudinal direction 36 to the rear. In a known manner, the seating area 20 a suspension 50 that a recess 102 in the seat part 30 bridged.
As 3 shows is located between support plate 32 and upholstery body 28 a sliding surface 52 , It is either on the support plate 32 or, as in 3 drawn, on the upholstery body 28 intended. It is realized for example by a plastic film. She covers the upholstery body 28 flat in the area with the support plate 32 including its supporting wings 44 can come into contact. With an adjustment of the support plate 32 relative to the seat part 30 finds a relative movement between the support plate 32 and the cushion body 28 instead of. The sliding surface 52 facilitates this relative movement. In the area of the front edge of the seat is the cushion body 28 not connected to the mechanical support structure. In the edge of the cover 26 there is an elastic part 54 , For example, a rubber band, sewn. In an alternative, the edge is connected to the mechanical support structure via springs, rubber strips or the like. This allows the edge relative to the support plate 32 move. With an adjustment of the seat depth, the edge of the cover shifts 26 but always stays below the seating area 20 , This forms other areas of the cover 26 the foremost upper cushion edge, depending on the position of the support plate 32 , In the area behind the support plate 32 , in particular in the field of suspension 50 , is the upholstery body 28 however, according to the prior art with the seat part 30 etc., since there is no relative movement in this area. The border between normal stringing and moving Covering is approximately in a line parallel to the y-axis, passing through the base of the U-shaped recess 102 of the seat part 30 goes. It is also possible the side panels 38 with the cushion body 28 connect to.
The seat part 30 can also be executed differently than shown. It is shown as a cushion shell, it can also be designed as a half-shell or as a simple front cross member.
The leadership 34 is a motorized adjustment device 60 assigned. This has an electric motor 62 with flanged gearbox 64 and a pinion 66 , It also has a flat, substantially rectangular adjustment module 68 extending between support plate 32 and seat part 30 located. This adjustment module 68 on the one hand forms the leadership 34 on the other hand, it converts the rotational movement of the pinion 66 in a movement in the longitudinal direction 36 around. There are attacks 70 provided that the movement of the adjustment module 68 in the two directions of the longitudinal direction 36 restrict.
The adjustment module 68 has a first gear plate 72 which is the seat part 30 assigned. It also has a second gear plate 74 that of the support plate 32 assigned. The leadership 34 is formed by a left profile 76 and a right profile 78 the first gear plate 72 and a left counter profile 80 as well as a right counter profile 82 the second gear plate 74 , Both gear plates 72 . 74 have substantially rectangular format and are relatively thin in the z direction, for example 3-8 mm thick. Near their narrow sides are the profiles 76 . 78 or the counter profiles 80 . 82 intended. As from the figures, especially the 6 to 8th , it can be seen, are the profiles 76 . 78 and the counter profiles 80 . 82 essentially L-shaped and engage with a free L-leg mutually in a groove which is formed between the other free L-leg and the actual plate body from which projects the profile or the mating profile. The left profile 76 and the left counter profile 80 form such a mating, also forming the right profile 78 and the right counter profile 82 a mating. The free legs of the profiles protrude 76 . 78 towards each other. The free legs of the counter profiles 80 . 82 point away from each other. Overall, an intervention is achieved as he looks best 8th can be seen. The two gear plates 72 . 74 are through the leadership 34 held so that they are in the plane of the paper 8th can not be moved against each other, but perpendicular to the paper plane. 8th also shows that the profiles 76 . 78 and the counter profiles 80 . 82 each projecting to the plate body of the other gear plate and in this way the distance between the two gear plates 72 . 74 pretend.
Immediately on the inner surface of the counter profiles 80 . 82 Is integrally a rack 84 arranged. There are teeth on the inside surface 86 arranged, which face each other and the rack 84 form. The racks 84 extend over the length of the guide 34 to be used for the adjustment movement. The racks 84 run in the same direction as the guide 34 ie in the longitudinal direction 36 , With every rack 34 is each a gear 88 engaged. The two gears 88 each page are identical. One of the gears is via an intermediate gear 90 also with the gears 88 is identical, with the pinion 66 engaged, the other gear 88 is directly engaged with this pinion. The gears 88 , the intermediate wheel 90 and the pinion 66 have axes of rotation that lie on a common plane, see 8th ,
In the embodiment shown has the gearbox 64 an output shaft with non-circular plug-in opening 92 , In this will be a counterpart 94 plugged in, with the pinion 66 connected is. It is also possible the pinion 66 at the output shaft of the gearbox 64 to arrange.
The electric motor 62 and the gearbox 64 are collectively referred to as geared motor. The two gear plates 72 . 74 have a clear distance from each other, which is only slightly larger than the thickness measured in the axial direction of the gears 88 , the intermediate wheel 90 and the pinion 66 , The same dimensions in z-direction have the teeth 86 ,
In the gear plates 72 . 74 are holes 96 intended. These accommodate collars that are axially off the gears 88 and the intermediate wheel. The storage in only one gear plate is sufficient 72 . 74 , Also the separable pinion 66 is stored in a separate hole. Alternatively, on the inner surface of at least one gear plate project stub axle, which the gears 88 store etc.
From the first gear plate 72 jump cones 98 which are substantially cylindrical. The gear 64 has adapted recesses 102 , in which during mounting the pins 98 intervention. This will make the transmission 64 to the adjustment module 68 positioned appropriately. In the illustrated embodiment, the seat part 30 the first gear plate 72 which is a plastic injection molded part, and a sheet metal part 100 , The sheet metal part 100 has recesses 102 for the cones 98 , The sheet metal part 100 located between the first gear plate 72 and the geared motor 62 . 64 , The support plate 32 has the second gear plate 74 and a sheet metal plate 104 on. Suitable means are provided for connecting the two together.
In particular 6 shows are the racks 84 and the counter profiles 80 respectively. 82 in one piece as projections on the underside of the second gear plate 74 educated and in the immediate vicinity. At the rear end, the racks have slanted projections that track the gears 88 To block. At least one of the gear plates 72 . 74 has hooks 106 , which project on the outer surface and along a long side and are open to the other long side. They are in recesses of the associated gear plate 72 respectively. 74 hooked. Only on the other long side, the gear plate is bolted or otherwise secured.
Adjustment device (60) after Claim 1 , characterized in that two gears (88) and an intermediate gear (90) are provided, and that the two gears (88), the intermediate gear (90) and the pinion (66) have axes of rotation which lie in one plane.
Adjustment device (60) after Claim 1 , characterized in that the first gear plate (72) has pins (98) protruding on its underside, and that the gear (64) of the geared motor (62, 64) has receptacles which are adapted to these pins (98).
Adjustment device (60) after Claim 1 , characterized in that the seat part (30) has a sheet metal part (100) that the first gear plate (72) has pins (98) projecting on its underside, that the sheet metal part (100) recesses (102) for the pins (100) 98) and a bore for the pinion (66), and that the gear (64) and the motor (62) of the geared motor (62, 64) are located below the sheet metal part (100).
Adjustment device (60) after Claim 1 , characterized in that the support plate (32) has a metal plate (104), and that the second gear plate (74) is located below the metal plate (104) and is connected thereto.
Adjustment device (60) after Claim 1 , characterized in that the two racks (84) have a distance from each other which is greater than 40% of the width of the seat portion (20).
Adjustment device (60) after Claim 1 , characterized in that the axial thickness of the gears (88) and the intermediate wheels (90) is only slightly smaller than the clear distance between the first gear plate (72) and the second gear plate (74), in particular at most 1 mm smaller than this Distance.
Adjustment device (60) after Claim 1 characterized in that each rack (84) is respectively engaged with a gear (88), one of these gears (88) is engaged with an idler gear (90), and that the other gear (88) and the idler gear (88) 90) with the pinion (66) of the geared motor (62, 64) are engaged.
Adjustment device (60) after Claim 1 characterized in that one of the two racks (84) engages directly with the pinion (66) of the geared motor (62, 64), and that the other rack (84) is connected to the pinion (66) via an intermediate gear (90). the geared motor (62, 64) is engaged.
DE102007049865.0A 2007-01-19 2007-10-18 Motor vehicle seat with adjustable seat depth Expired - Fee Related DE102007049865B4 (en)
DE102007049865.0A DE102007049865B4 (en) 2007-01-19 2007-10-18 Motor vehicle seat with adjustable seat depth
FR0850318A FR2911543B1 (en) 2007-01-19 2008-01-18 Seat of motor vehicle with adjustable seat depth
CN2008100039398A CN101224714B (en) 2007-01-19 2008-01-18 Motor vehicle seat with adjustable seat depth
DE102007049865A1 DE102007049865A1 (en) 2008-07-24
DE102007049865B4 true DE102007049865B4 (en) 2019-02-21
DE102007049865.0A Expired - Fee Related DE102007049865B4 (en) 2007-01-19 2007-10-18 Motor vehicle seat with adjustable seat depth
US (1) US7997648B2 (en)
CN (1) CN101224714B (en)
DE (1) DE102007049865B4 (en)
FR (1) FR2911543B1 (en)
FR2958593B1 (en) * 2010-04-09 2012-04-13 Faurecia Sieges D Automobiles Device for adjusting the seat length for an automotive seat, and seat comprising such a device
CN103209859B (en) * 2010-10-25 2016-01-20 布罗泽汽车部件制造科堡有限公司 There is the seat of depth of seat cushion control apparatus
WO2015113633A1 (en) * 2014-01-31 2015-08-06 Schukra Gerätebau Gmbh Seat cushion length adjusting device and method of adjusting a seat cushion length
CN104085320B (en) * 2014-07-07 2016-08-03 姜立平 Synchronous interaction magnetic switch device
DE19826823C1 (en) 1998-06-16 1999-08-12 Faure Bertrand Sitztech Gmbh Height adjuster for motor vehicle seat
FR2088828A5 (en) * 1970-04-27 1972-01-07 Modern Tube
NL1010808C2 (en) * 1998-12-15 2000-06-23 Actuall B V I O Drive system for the mechanical adjustment of profile parts, furniture, profile part and a method for manufacturing a profile part.
2007-10-18 DE DE102007049865.0A patent/DE102007049865B4/en not_active Expired - Fee Related
2008-01-18 CN CN2008100039398A patent/CN101224714B/en not_active IP Right Cessation
2008-01-18 FR FR0850318A patent/FR2911543B1/en not_active Expired - Fee Related
CN101224714B (en) 2010-06-23
FR2911543A1 (en) 2008-07-25
CN101224714A (en) 2008-07-23
FR2911543B1 (en) 2013-05-17
DE102007049865A1 (en) 2008-07-24
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