MXPA00007652A - Vehicle seat with linear reclining mechanism and an easy entry latch with memory - Google Patents

Abstract

A seat assembly (2) for use in an automotive vehicle includes a seat track assembly (6) for securing the seat in the vehicle. A seat cushion (4) is supported by the seat track assembly (6) and a seat back (8) ispivotally secured to the seat track assembly (6) and pivotal between one of a plurality of reclining positions and a forward dumping position. A linear actuator (10) selectively adjusts the seat back between the plurality of reclining positions. A locking member (80) intercoupled between the linear actuator (10) and the seat back (8) operatively locks the seat back (8) in one of the plurality of reclining positions and a seat back releasing member (22) is coupled to the locking member (80) for releasing the locking member (80) from the seat back and allowing the seat back to pivot from the reclining position to the dumping position while the linear actuator (10) retains the previously adjusted reclining position of the seat back. A track locking member (48) selectively locks the seat track assembly and seat in one of a plurality of fore and aft seat adjustment positions. A transmission member (26, 28) interconnects the seat back and the track locking member for automatically unlocking the seat track in response to pivotal movement of the seat back from the reclining position to the dumping position to allow access to the area behind the seat.

Description

VEHICULAR SEAT WITH LINEAR RECLINATION MECHANISM AND AN EASY INPUT LATCH WITH MEMORY FIELD OF THE INVENTION The present invention relates to a vehicle seat mount having a linear seat backrest recliner and an easy entry latch mechanism with memory position feature of the seat backrest recliner.

Background of the Invention Vehicle seat assemblies commonly include a seat slider assembly for slidably mounting the seat to the vehicle floor. A seat cushion is supported by the seat slider assembly and a seat backrest is supported in a pivotal manner by the seat cushion or seat slider assembly.It is often desirable to adjust the angular or reclining position of the backrest of the seat back. seat with respect to the seat cushion for comfort and safety of the user.It is also often desirable to pivot the seat back all the way forward, to a tilting position to allow easier access to the rear area of the seat assembly. However, once the seat backrest has been pivoted fully forward to the tilting position, the previously adjusted reclining position is typically lost and the seat backrest must be adjusted back to the reclined position of the desired seat backrest.

Further, the seat slider assembly is frequently released or released when the seat back is rotated on a pivot to the tilting position to allow the front sliding movement of the complete seat assembly and to provide even greater access to the rear area of the mounting assembly. seat. The release of both the seat back and seat runner causes even more difficulty in maintaining the previously adjusted reclining position of the seat back with the return from the tilting position.

Therefore, it is desirable to provide a mechanism which allows the release of the seat backrest for the pivoting movement from the reclining position adjusted to the tilting position, while maintaining, or memorizing, the reclining position previously adjusted with the return of the backrest. seat.

French Patent No. 1,498,801 and European Patent No. 0,451,035 describe two solutions contemplated to maintain the previously adjusted position of the seat back when the seat back is returned from a tilting position.

French Patent No. 1,498,801 discloses an adjustment actuator that is positioned below a pivot point of the seat back to move the seat back between reclining positions. A pivot plate connects the actuator to the seat backing and includes a notch to provide a memory feature. A release member is positioned substantially above the pivot point of the seat backrest to release the seat backrest from the pivot plate, such that the seat backrest can be moved to a tilting position. The release member engages the notch in the pivot plate when it returns from the tilting position, thereby maintaining the original reclining position. The separate parts which create a heavy and expensive design that consumes a significant amount of space along the side of the seat. In addition, the release member moves with the seat back, such that in certain reclining positions, the release member may be difficult to operate.

European Patent No. 0,451,035 discloses an adjustment actuator positioned on each side of the seat which takes into account the incremental recline of the seat back and provides a tilting feature. The actuator is a relatively large strut which is mounted between a front portion of an upper slide member and the seat backrest. The small turning stops are used to lock the seat backrest to the actuator and release the seat backrest during movement to the tilting position. The adjustment actuator is not affected during the tilting of the seat backrest, such that the original reclining position is maintained. The wire cables are connected to the stops to facilitate the tilting of the seat backrest. This proposed solution also incorporates a heavy design that takes up a significant amount of space in the seat assembly. In addition, after repeated tilting of the seat backrest, the stops can wear out and become ineffective, which puts the integrity of the design at risk.

Accordingly, it remains desirable to provide a relatively simple and compact mechanism to provide an incremental recline adjustment and to release the seat backrest to a tilting position, while maintaining the reclining position previously adjusted. In addition, the design should be able to withstand repeated actuation of the seatback between normal reclining and tilting movements.

Brief Description of the Invention A vehicle seat assembly includes a seat mounting assembly to secure the seat in a vehicle. A seat cushion is supported by the seat mounting assembly and a seat backrest is pivotally secured to the seat and pivot mounting assembly between any of a plurality of reclinable positions and a front tilting position. A linear actuator selectively adjusts the seat backrest between the plurality of reclinable positions. A fixing member is interengaged between the linear actuator and the seat back to operatively lock the seat back in one of the plurality of reclinable positions. A release member of the seat backrest engages the fastening member to release the seat back fastening member and allow the seat back to pivot on a pivot from the reclining position to the tilting position, while the linear actuator maintains the previously adjusted reclining position of the seat backrest. The seat assembly is characterized by the release member having an integral slot with the fastening member coupled to the slot to provide a vacuum displacement connection between the fastening member and the release member, such that a relative position of The release member remains substantially the same during the movement of the seat backrest between the plurality of reclining positions and the tilting position.

The present invention therefore provides a compact, relatively simple design to allow for incremental reclining of the seatback and provide for tilting of the seatback, while maintaining an original reclining position. The entire mechanism is placed below the pivot point of the seatback on one side of the seat mount. The compact design of the mechanism takes into account a lighter seat assembly that does not interfere with aesthetics or other parts of the seat. Finally, since the position of the release member in relation to the seat cushion will remain substantially the same during movements of the seat backrest, the release member is always easily accessible and actuated.

Brief description of the Drawings Figure 1 is an elevational view of the left side of a vehicular seat with a linear reclining mechanism and an easy entry latch with memory including the principles of the present invention; Figure 2 is a fragmentary perspective view seen downward on the left side of a portion of the frame structure of a vehicle seat with a linear recline mechanism and an easy entry latch with memory including the principles of the present invention as configured in the generally normal vertical position.

Figure 3 is a fragmentary perspective view of the attachment assembly of a vehicle seat with a linear recline mechanism and an easy entry latch with memory shown in Figures 1 and 2; Figure 4 is a fragmentary left side profile view of the mounting of a vehicular seat with a linear reclining mechanism and an easy entry latch with memory including the principles of the present invention as it is configured in the upright position generally normal Figure 5 is a view similar to Figure 4 showing the position of the components of the hitch assembly after the drive mechanism of the seat backrest has been moved to the operative position; Figure 6 is a fragmentary perspective view of the exploded view of the detent mechanism of the slide structure of a vehicular seat with a linear recline mechanism and an easy entry latch with memory including the principles of the present invention; Figure 7 is a fragmentary profile view of a latch release mechanism of the slide structure for a vehicular seat with a linear recline mechanism and an easy entry latch with memory including the principles of the present invention as configured in a locked position; Fig. 8 is a view similar to Fig. 7 showing the position of the latch release mechanism of the slide structure after the drive mechanism of the seat backrest has been moved to the operative position i a; Figure 9 is a fragmentary left side profile view of the attachment assembly of a vehicle seat with a linear recline mechanism and an easy entry latch with memory including the principles of the present invention as configured in the reclining position generally; and Fig. 10 is a view similar to Fig. 9 showing the position of the components of the latching assembly after the operating mechanism of the seat backrest has been moved to the operative position.

Detailed Description of the Preferred Modalities Referring to Figures 1-10, where equal numbers indicate equal or corresponding parts in all different views, a vehicular seat, generally indicated at 2, is shown, which includes a seat cushion assembly, generally indicated at 4, mounted on the vehicle floor for longitudinal movements by a seat mounting assembly, generally indicated at 6. Seat assembly 2 also includes a seatback cushion assembly, generally indicated at 8, mounted on the cushion assembly of seat 2 for forward tilting movement, and for backward reclining movements by a seatback mounting assembly, generally indicated at 10. An easy entry control assembly is included within the seatback mounting assembly , usually indicated at 12, which has a linear recline function with memory after tilting according to the principles s of the present invention.

The seat cushion assembly 4 that excludes the seat mounting assembly 6 can be of any well-known construction, which includes a rigid frame constructed and arranged to carry a spongy polyurethane seat cushion or the like, which has its exterior a cover of suitable material. Similarly, the seatback cushion assembly 8 can be of any well-known construction, including a frame structure constructed and arranged to support a seatback cushion, which has on its exterior a cover of suitable material. The seat mounting assembly 6 of the seat cushion assembly 4 includes two pairs of transversely spaced cooperating slide assemblies, generally indicated at 14. The seatback mounting assembly 10 includes a pair of seatback support members. 16, which are fixed on opposite sides of the frame structure of the seatback cushion assembly 8. Each seatback support member 16 is mounted in a rotatable manner on a seatback base support structure. 18, fixedly mounted with respect to the frame of the seat cushion assembly 4.

As best shown in Figures 2-5 and 9-10, the control assembly 12 controls the rotational movement of the seat back cushion assembly 8 with respect to the seat cushion assembly 4 provided by virtue of the tire connections. rotation between the seat backrest support members 16 and base structures 18. To control the reclining movements, the control assembly 12 includes a linear actuator assembly, generally indicated at 20, which is pivotally connected to one of the cooperating pairs of the slide assemblies 14. A seatback release member, generally indicated at 22, it is pivotally attached to the rear end of the linear actuator assembly 20 and engages and releases the seat back support member 16 to allow easy access and return to the same reclining position. A supporting structure of the linear actuator assembly 24 is provided to support the end of the linear actuator assembly 20 during easy access and return. As shown, the support structure 24 is rotated on a pivot at its upper end to the pivot pin 25, which pivotally connects the associated support member 16 and the base structure 18, and in its bottom end to the rear end of the linear actuator assembly 20. An operation transmission member 26, at its most rear end, is mounted in a rotatable manner in a position close to the middle portion of the support member 24. A connecting member of operation, generally indicated at 28, is mounted in a rotatable manner at its lower end to the front end of the operation transmission member 26.

The operating joint member 28 is best shown in Figures 2 and 6 which extends along and over the slide assembly 14 until it terminates in an integral rotary contact structure 29. A coordinating retainer release structure, generally indicated at 30, is attached in a rotatable manner at each end respectively to one of the pairs of slide assemblies 14.

The seat cushion assembly 6 of the seat cushion assembly 4 may include in addition to the pairs of slide assemblies 14, a spring tightening to a more frontal position for easier access. The seatback cushion mounting assembly is also preferably provided with a spring tightening so that the seatback cushion assembly moves toward a generally upright position that constitutes the most forward position in the range of reclining positions provided.

While the preferred embodiment shown contemplates an access position of the vehicle seat 2, wherein the seatback cushion assembly 8 is rotated on a pivot forward to a tilting position that is on the seat cushion assembly 4 and the seat cushion assembly 4 moves forward from its operating position to an access position, the principles of the present invention are applicable to seats wherein the seatback cushion assembly 8 is moved forward to a position tilting, but there is no forward movement of the seat to an access position. Further, while the forward access movement of the seat which is provided by the preferred embodiment illustrated does not include a memory function, the principles of the present invention are equally applicable to seats which have this memory function constructed in any way known The pair of slide assemblies 14 as shown are constructed in accordance with the disclosures contained in U.S. Patent Numbers 5,286,076 and 5,741,000, the disclosures of which are hereby incorporated by reference in the present specification. Each pair of slide assemblies 14 includes a fixed slide member 32, which is fixedly secured to the vehicle floor and a movable slide member 34, which is fixed to the frame of the seat cushion assembly 4 to form a part of the seat cushion assembly. same.

As best shown in Figures 2 and 6, each fixed slider member 32 provides a pair of longitudinally aligned guide potions 38 that define a series of locking apertures 40. The movable slider member 34 is of a transverse configuration, such as they present end portions in the form of C, connected in the upper part, opposite, facing the center 42. As best shown in Figure 6, an inner surface 44 of each movable sliding member 34, defines a gantry of limb member. fastener 46 positioned adjacent to the series of fastening openings 40, which are present in the guide portion 38 of the associated fixed slide member 32. A slide fastener member, generally indicated at 48, is dimensioned and configured to be inserted free way in each fastening member gantry 46. The fastening member 48 is adapted to interlock in a select manner and in a free manner with the selected sections e the guide portion 38, which define the series of fastening openings 40. In the fully assembled operation state, the fastening member 48 is positioned within the fastening member gantry 46 and in vertical alignment with the guide portion 38 of the fixed slide 32. A portion of the projection of the slide fastening member 48 extends outwardly through the frame of the fastening member 46 and is integral with a spring clamping plate member 50. The plate clamp member 46 Spring tightening 50 is spring-loaded upwardly by a spring structure 52, which is secured at each end to the inner surface 44 of the movable slider member 34 by a spring securing member 54. The outer surface of the spring member spring tightening plate 50 defines an elongated plate member slot 56.

Next to each end of the catch releasing coordinating structure 30 is a catch coordinating projection member 58, which is adapted to fit within and serves to transmit the vertical movement of the catch coordinating projection member 58 to the member slot. of plate 56 of spring tightening plate member 50. Plate member slot 56 is configured to maintain, but also allow limited movement of detent coordinating projection member 58.

The two movable slider assemblies 34 when referred to individually below will be referred to as a first movable slider assembly 60 and a second movable slider assembly 62. Firmly attached and close to the end of the catch release coordinating structure 30, which is adjacent to the first movable slide assembly 60, there is an outer plate member 66, best shown in Figures 6-8.

A joint stop surface 68 is defined on an upper portion of the outer surface of the outer plate member 66. The latching release latching structure 30, proximate each end thereof, is mounted in a pivot manner near the center section of the inner surface 44 of the pair of movable slide assemblies 34 by a coordinating member pivot structure 70. .

The backrest support members 16 are each mounted in a pivoting manner to the upper portions of their respective base structures 18 by a rear support pivot member 25. The control assembly 12 is mounted close to the structure of the rear support. base 18 in the first movable slide assembly 60. The linear actuator assembly 20 includes a mounting assembly of the linear actuator extension member ^ 74, which is mounted on the outside side of the first movable slider assembly 60. Passing through and extending rearward is an elongated extension member attached in a free manner 76, which terminates in an adjoining structure. .

A seatback fastening member 80 is pivotally mounted to the adjoining structure 78, such that its uppermost portion can be selectively rotated by the operation of the seat backrest release member 22 in > against a spring tightening in (1) a position opened by above the adjoining structure 78 as shown in Figure 10 or (2) can be returned by the spring tightening action to a closed backward position of the adjoining structure 78 as shown in Figure 9. The adjoining structure 78 leans on and serves to prevent movement forwardly of the structure of the seat back support fixing pin 82, which is fixedly attached to the outer surface of the lower portion of the seat back support member 16.

In operation, a linear actuator release member 84 when placed in an unlocked position by an operator acts on the fixation assembly 74, in a manner as is well known in the art, to release the extension member 76 which allows the extension member is moved forward or backward as desired by the operator. As best shown in Figures 4, 5, 9 and 10, the seat-back support fixing pin 82, which is supported on the rear surface of the adjoining structure 78, will be displaced rearwardly by rearward movement of the rear seat. adjacent structure 78. The seatback fastening member 80 which is spring tightened to a closed position, rearwardly of the abutment structure 78, is normally in a locked position against the rear surface of the structure of the fastening pin. of the seat back support 82. Thus, in the normal locked position of the seat back fastening member 80, the structure of the seat back fastening pin 82 is secured between the adjoining structure 78 and the fastening member of seat backrest 80. Therefore, when the linear actuator release member 84 is placed in an unlocked position and the extension member 76 is free to move forward or rearward, the structure of the seatback support securing pin 82, which is secured between the abutment structure 78 and the seat back fastening member mounted in a pivot manner 80, continues forward or rearwardly, thereby adjusting the position of the seat back cushion assembly 8. The use of the member linear actuator release by the operator making an adjustment of the degree of forward or backward recline of the seatback has no effect on the position of the slide assemblies 14.

As shown in Figure 2, the seatback release member 22 is mounted in a pivot manner and extends rearward generally parallel to the first movable slide assembly 60. As best shown in Figures 4, 5, 9, and 10, a slot of the seatback release member 86 is defined in the lower middle portion of the seat backrest release member 22 and slidably receives therein a contact structure of the seat backrest member. seat back 88, which projects from the lower portion of the seat back fastening member 80. The groove of the release member 86 and the contact structure of the fastening member 88 are configured such that with the upward rotating movement of the seat backrest release member 22 by an operator, the contact structure of the clamp member 88 will be pushed in a backward direction by interaction with the slot a of the release member 86, and as a result of the pivotal mounting of the seat back fastening member 80 to the adjoining structure 78, the seat back fastening member 80 will be rotated on an upward pivot against tightening from spring to open position, thereby releasing the structure of the seat back securing pin 82. With such a release, the structure of the seat back securing pin 82 and the fixed lower portion of the seat support member seat backrest 82 will be free to rotate in a pivotal manner rearwardly near the seat backrest support pivot member 25, thereby allowing the seatback cushion assembly to pivot on a forward pivot. The forward rotation of the structure of the seatback fastening pin 82 is still prohibited by the position of the adjoining structure 78.

Since the seatback cushion assembly 8 rotates forward, the adjoining structure 78 remains in its last position prior to movement of the seatback support member 16. Maintained in its last position, the adjoining structure 78 maintains a memory of the last position of the seat back support member 16 and the seat back cushion assembly 8 before the actuation of the seat backrest release member 22. With the actuation of the seat backrest release member 22, the Operation transmission member 26, which is pivotally mounted to the lower portion of the seatback support member 16, will be pulled back as the seatback cushion assembly 8 moves forward.

With the return of the seatback cushion assembly 8 and the seatback support members attached 16 to the original position, the structure of the seatback attachment pin 82 will initially strike against the rear surface of the seatback fastening member. spring-loaded seat backrest 80. As best shown in Figures 4-5 and 9-10, the rear surface of the seatback fastening member 80 is configured such as to allow the structure of the fastening pin of the seatback. seat backing 82 urges the seat back fastening member 80 against spring tightening until the structure of the locking pin 82 reaches the point where it is recaptured between the seat back fastening member 80 and the adjoining structure 78. Because the adjoining structure 78 is maintained in its original position by the linear actuator support member 24, the support structures of the seat pad 16 and the attached seat back cushion assembly 8 are, by the memory feature of this invention, held in the same position as they were before the actuation of the seat backrest release member 22. The release member of linear actuator 84, when used by the operator changes the degree of verticality or recline of the seatback cushion assembly 8, it also serves to reset the memory characteristic of the invention by readjusting position of the adjacent structure 78 .

As shown in Figures 2, 7 and 8, the operation coupling member mounted in a pivoting manner 28 will be rotated by the backward movement of the operating transmission member connected in a pivot manner 26 in such a manner as to cause a downward rotation of the integral rotating contact structure 29. The rotary contact structure 29 when rotated downward rests on the joint stop surface of the outer plate 68 which forces the outer plate member 66 and the coordinating structure of the outer plate member 66. fixed retainer release 30 downwards. The spring clamping plate member 50 continues downwards as a result of the interaction through its opening of the plate member 56 with the projection of the coordinating member 58. The downward rotating movement of the end portion of the coordinating member 30 in the The first movable slide assembly 60 is transversely transmitted to the second movable slide assembly 62 and thus performed simultaneously on both movable slide assemblies 34. The simultaneous downward movement of both the spring clamping plate members 50 resulting from the downward movement of the respective integral slide fastener members 48. The slide fastener members 48 are thus released from a gear locked with the guide portions 38 of the fixed slide assemblies 32, thereby allowing movement of the movable slide assemblies 34. Conventionally, the seat cushion assembly 6 provides a spring tightening for the movable slider assemblies 34 to move forward when the movable slider assembly is not free. In this way, by operating the seatback release member 22, the seatback cushion assembly 8 has been released to pivot forwardly in an underlying relationship to the seatback cushion assembly 2, while simultaneously releasing the movable slide assemblies 34 in a coordinated manner, such that the seat can move forward to provide greater access to a passenger area of the rear seat.

Importantly, although a push down against the abutting surface 68 of the rotating contact structure 29 will effect the release of the movable slide assembly 34, there is no direct connection between the rotating contact structure 29 and the surface of attachment stop 68 of the outer plate member 66. When an operator selectively pulls up the catch release coordinating structure 30, the outer plate member 66 and its attachment stop surface 68 move downward to release the mounts movable sliders 34 of the fixed slide assemblies 32. However, because there is no responsive movement of the rotary contact structure 29. In this way, the release of the movable slide assembly 34, when effected by a operator selectively using the catch releasing coordinating structure 30, does not result in any release or adjustment to the degree of recline Seat backrest cushion 8.

The memory characteristic of the invention is clearly shown by comparison of Figures 4, 5, 9 and 10. The operation of the control assembly 23 with the movement of the seatback cushion assembly 8 from the generally normal vertical position to the front tilting position, as shown in Figures 4 and 5, when compared to the operation of the control assembly 12 when the operation is started from the reclining position generally to the front tilting position, as shown in Figures 9 and 10 , clearly shows that the linear actuator assembly 20, in conjunction with the linear actuator mounting support member 24, provides a memory feature of the invention while maintaining the abutment structure 78 in the previously adjusted position when the back cushion assembly of seat 8 is rotated on a pivot backwards from the front tilting position. With the return of the seat back support members 16 to a locked position, the degree of recline or verticality as selected before by the operation of the linear actuator release member 84 will be maintained.

The invention in this way allows the operation of the catch release coordinating structure 30 and the release of the movable slide assemblies 34 without effect in the selected and locked reclining position of the seatback cushion assembly 8. In addition, with the operation of the seatback release member 22, the invention provides a coordinated dual-action release of the seatback support members 16 and the movable slide assemblies 34. Throughout this double-action operation of the invention, the linear actuator assembly 20 is held in the last position selected by the memory feature of the invention, such that with the return of the seat backrest to a generally reclined or vertical position, the structure of the seatback fastening pin 82 it will be recaptured in the same position from which it was released easier without an additional adjustment.

The invention has been described in an illustrative manner, and it is understood that the terminology which has been used is intended to be somewhat like words of description rather than limitation. Many modifications and variations of the present invention are possible in the clarity of the above teachings. Therefore, it is understood that within the scope of the amended claims, the invention may be practiced otherwise than as specifically described.

It is noted that in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects to which it relates.

Having described the invention as above, the content of the following is claimed as property.

Claims (26)

1. A vehicle seat assembly, which includes: a seat mounting assembly to secure the seat assembly in a vehicle; a seat co m supported by the seat assembly assembly; a seat back secured in a pivoting manner to the seat and pivot mounting assembly between any of a plurality of reclinable positions and a front tilting position; linear driver or actuator for selectively adjusting the seat backrest between the plurality of reclinable positions defining an adjusted reclining position, the linear actuator includes an elongated extension member terminating in an adjoining structure for engaging and pivoting the backrest of a backrest. seat between reclining positions; an interengaging fixing member between the linear actuator and the seat back to operatively lock the seat back in the adjusted reclining position, the fastening member is pivotally mounted to the adjoining structure for selective rotation between an open position and a closed position; Y characterized in that a seatback release member engages the fastening member to rotate the fastening member from the closed position, which meshes and holds the seat backrest in the adjusted reclining position, to the disengaged open position 10 of the backrest of the seatback. seat to allow the seat back to turn on a pivot to the tilting position, whereby the seat back returns to the adjusted reclining position, held by the linear actuator.

2. A vehicle seat assembly according to claim 1, characterized in that the release member has a slot and the attachment member that engages the slot provides a vacuum shift connection between 20 the fixing member and the release member, whereby the release member and the seat cushion substantially maintain a position in relation to each other.

3. A vehicle seat assembly according to claim 2, characterized in that the attachment member is pivotally connected to the adjacent structure to automatically engage and lock the seat backrest in the reclining position.

4. In addition, it includes a linear actuator support structure having a first end pivotally connected to the seat backrest and a second end connected in a pivotal manner to the actuator. linear to support and guide the seat back between the plurality of reclining positions and the tilting position.

5. A vehicle seat assembly according to claim 4, characterized in that it further includes a seat back support pivot member for pivotally connecting the seat back and the first end of the linear actuator support structure to the Seat assembly assembly.

6. A vehicle seat assembly according to claim 5, characterized in that the seatback release member includes a first end pivotally connected to the seat mounting assembly, a second end distal to actuate the release member and an intermediate portion therebetween coupled to the seatback fastening member for pivoting the fastening member between a locked position that meshes and holds the seatback in the reclining position and an unlocked position that releases the backrest from Seat for movement to tilting position.

7. A vehicle seat assembly according to claim 6, characterized in that the slot has a substantially arcuate configuration and is integrally positioned within the middle portion of the release member.

8. A vehicle seat assembly according to claim 7, characterized in that the attachment member includes a contact structure that engages the arcuate slot of the release member for interconnecting the attachment member to the release member.

9. A vehicle seat assembly according to claim 8, characterized in that the linear actuator or actuator ad includes a linear actuator release member and an elongated extension member extending between the release member and the adjoining structure to linearly translate the adjacent structure until the seat backrest is adjusted to one of the plurality of reclining positions.

10. A vehicle seat assembly according to claim 9, characterized in that the seat mounting assembly includes a slide assembly to provide the longitudinal sliding movement of the seat assembly.

11. A vehicle seat assembly according to claim 10, characterized in that the slide assembly includes a pair of fixed slide members to secure the seat assembly to the vehicle and a pair of mobile slide members coupled in a slidable manner to the members. of respective fixed slides to provide the longitudinal movement of the seat.

12. A vehicle seat assembly according to claim 11, characterized in that the slide assembly further includes a slide fastening member for locking the fixed and movable slide members in any of a plurality of longitudinally adjusted positions.

13. A vehicle seat assembly according to claim 12, characterized in that the slide assembly further includes a slide catch release member for selectively latching and unlocking the fixed and movable slide members in the longitudinally adjusted position.

14. A vehicle seat assembly according to claim 13, characterized in that it further includes a transmission member extending between the seat backrest and the slide fastener member for unlocking the slide fastener member in response to the rotational movement of the vehicle. seat backrest from the reclining position to the tilting position.

15. A linear recline mechanism adapted for use with a vehicle seat, including: a linear actuator for selectively adjusting the seat between a plurality of reclining positions defining a reclining position adjusted, the linear actuator includes an elongated extension member that terminates at a adjoining structure for engaging and pivoting the seat between reclining positions; an interengaged fixing member. between the linear actuator and the seat for operatively locking the seat in the adjusted reclining position, the fastening member is pivotally mounted to the adjoining structure for selective rotation between an open position and a closed position; Y characterized in that the release member engages the fastening member to rotate the fastening member from the closed position, which meshes and holds the seat in the adjusted reclining position, to the disengaged open position of the seat to allow the seat to rotate about a pivot to the tilting position, whereby the seat returns to the adjusted reclining position, held by the linear actuator.

16. A vehicle seat assembly according to claim 15, characterized in that the release member has a slot and the attachment member that engages the slot provides a vacuum displacement connection between the attachment member and the release member, whereby the release member and the seat substantially maintain a position in relation to each other.

17. A linear recline mechanism according to claim 16, characterized in that the fastening member is pivotally connected to the adjoining structure and adapted to automatically engage and lock the seat in the reclining position.

18. A linear recline mechanism according to claim 17, characterized in that the release member includes a first end, a second distal end for driving the release member and a middle portion therebetween coupled to the fixation member to rotate on a pivoting the fastening member between a locked position when the seat is in the reclining position and an unlocked position that releases the fastening member for movement of the seat to the tilting position.

19. A linear recline mechanism according to claim 18, characterized in that the slot has a substantially arcuate configuration and is integrally positioned within the middle portion of the release member. •

20. A linear recline mechanism according to claim 19, characterized in that the fixing member 10 includes a contact structure that engages the arcuate groove of the release member to interconnect the fixation member to the release member.

21. A linear recline mechanism according to claim 20, characterized in that the linear actuator further includes a linear actuator release member and an elongated extension member which is understood between the release member f and the adjoining structure for translating 20 linearly the adjoining structure to one of the reclining positions.

22. A mounting assembly adapted to secure and adjust a seat in a vehicle, which includes: a slide assembly having a pair of fixed slide members to secure the seat to the vehicle and a pair of mobile slide members coupled in a manner slidable to the respective fixed slide members to provide a longitudinal movement; secured to the slide assembly for selectively adjusting the seat between a plurality of reclining positions and a tilting position; a linear actuator secured to the slider assembly for selectively adjusting the seat between a plurality of reclinable positions defining an adjusted reclining position, the linear actuator includes an elongated extension member terminating in an adjoining structure for engaging and pivoting on a pivot the seat between reclining positions; an interengaging fixing member between the linear actuator and the seat for operatively locking the seat in the adjusted reclining position, the fixing member is pivotally mounted to the adjoining structure for selective rotation between an open position and a closed position; Y wherein a release member engages the fastening member to rotate the fastening member from the closed position, engaging and holding the seat in the adjusted reclining position, to the disengaged open position of the seat to allow the seat to rotate about a pivot to the tilting position, whereby the seat returns to the adjusted reclining position, maintained by the linear actuator.

23. A mounting assembly according to claim 22, characterized in that it further includes a slide fastening member for locking the fixed and movable slide members in one of the longitudinally adjusted positions in a pivoting manner.

24. A "mounting assembly" according to claim 23, characterized in that it also includes a linear actuator support structure having a first end for attachment to the seat and a second end connected in a pivotal manner to the linear actuator for supporting and guiding the seat between the plurality of reclining positions and tilting positions.

25. A mounting assembly according to claim 24, characterized in that it further includes a transmission member extending between the support structure and the slide fastening member 'for unlocking the slide fastening member in response to the rotational movement of the support structure from the reclining position to the tilting position.

26. A vehicle seat assembly according to claim 25, characterized in that the release member has a slot and the attachment member engaging the slot provides a vacuum displacement connection between the attachment member and the release member, whereby the release member and the seat substantially maintain a position in relation to each other. SUMMARY OF THE INVENTION The present invention relates to a seat assembly (2) for use in a motor vehicle, which includes a seat slide assembly (6) to secure the seat in the vehicle. A seat cushion (4) is supported by the seat slide assembly (6) and a seat back (8) is pivotally secured to the seat and pivot slide assembly between any of a plurality of positions reclining and a frontal tilting position. A linear actuator (10) selectively adjusts the seat backrest between the plurality of reclinable positions. A fastening member (80) interengaged between the linear actuator (10) and the seat back (8) operatively locks the seat back in any of the plurality of reclinable positions and a seatback release member attaches to the member fastening for releasing the seat back fastening member and allowing the seat back to rotate on a pivot from the reclining position to the tilting position, while the linear actuator maintains the reclining position previously adjusted of the seat back. A slide fastening member (48) selectively locks the seat slide assembly and the seat in any of a plurality of longitudinal adjustment positions. A transmission member (26, 28) interconnects the seat backrest and the slide fastening member to automatically unlock the seat slide in response to the pivoting movement of the seat backrest from the reclining position to the tilting position to allow access to the area behind the seat.