JP2008114073A - Method of manufacturing motor vehicle seat, and seat manufactured by implementing the method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a motor vehicle seat in which discontinuous mechanisms disposed on both sides of a seat can be unlocked simultaneously by a single control lever. <P>SOLUTION: The method of manufacturing a motor vehicle seat comprises: (a) a step for providing an adjustment mechanism of a first side (6) and an adjustment mechanism of a second side (7), each of which is provided with a control member (16) and with a locking mechanism; (b) a step for coupling the two control members together by a rigid link member (21); a step for fastening the link member (21) to the control member (16) of the adjustment mechanism of the first side (6), and coupling the link member (21) to the control member (16) of the adjustment mechanism of the second side; a step for inserting one into the other the link member and the control member of the adjustment mechanism of the second side (7); and a step for applying radial deformation thereto. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for manufacturing an automobile vehicle seat and a seat manufactured by performing the method.

  Conventionally, an automobile vehicle seat includes a seat back, and the inclination of the seat back with respect to the seat body is adjusted by a hinge or a mechanism for adjusting the inclination around an inclination axis. There are usually two main categories of such hinge mechanisms. First, there is a “continuous” hinge mechanism. This allows the seat back to be locked at an arbitrary relative angular position with respect to the seat body based on the planetary gear train. In such a continuous mechanism, the seat body and the seat back are continuously mechanically constrained and rotated together around the tilt axis. Second, “discontinuous” mechanisms are known. It is possible, for example, to obtain a large number of discrete locking positions depending on the tooth pitch of the ring, based on locking slugs mounted so as to move radially relative to the engraved ring. It has become. In such a discontinuous mechanism, the seat back is not completely restrained with respect to the seat body in the unlocked state. Normally, nevertheless, the seat back and the seat body are constrained to move together with some other degree of freedom, for example with respect to translation, even if the discontinuous mechanism is not locked.

  The present invention relates to a method of manufacturing such a sheet having a discontinuous mechanism. When two such mechanisms are located on either side of the seat, they must be able to be unlocked simultaneously by a single control lever that is actuated by the user using a link member. In order to obtain good locking, when manufacturing a sheet, the two mechanisms are combined together, i.e. linked together, when both are fully locked. It is important that they are coupled so that there is no deviation between them in the direction of the degree of freedom in question.

  The present invention also relates to a mechanism that adjusts not only an operation of tilting an automobile vehicle seatback, but also an operation such as chipping.

More particularly, the present invention is a method of manufacturing an automobile vehicle seat having a first side and a second side spaced laterally, the method comprising:
(A) providing a first element and a second element connected by a respective adjustment mechanism on each side;
Each adjustment mechanism includes a movable part fixed to the first element on each side, a fixed part fixed to the second element, a control member, and a locking mechanism controlled by the control member, The adjustment mechanism is unlocked so that the two parts are not fully constrained with respect to each other with the degree of freedom of adjustment, and the adjustment mechanism has an inactive state that allows the two parts to move relative to each other for adjustment; It is designed to alternate between active states that are locked and cannot move the two parts relative to each other for adjustment,
(B) A substantially laterally-extending hard material formed by fixing the ring member to the control member of the first side adjustment mechanism and coupling the ring member with the control member of the second side adjustment mechanism. Coupling the two control members by a ring member;
Regarding the method.

  Document FR 2 882 707 describes a nearly satisfactory example of such a method of joining two hinges. For reasons such as miniaturization, logistics, and tooling, efforts continue to simplify the operations required after the seats are assembled. In particular, efforts continue to eliminate the need for welding and crimping operations on the assembled sheets.

For this purpose, according to the invention, the manufacturing method of the type in question further comprises the following steps:
In step (b), the link member and the control member of the second side adjustment mechanism are inserted into the other so that the radial clearance is perpendicular to the lateral direction, and then the link member and the second side The control member of the adjustment mechanism on the side surface is deformed in the radial direction, and the link member is fixed so as to be in close contact with the control member of the adjustment mechanism on the second side surface.

  These features ensure that the two mechanisms are coupled with a simple operation, and once coupled, the two mechanisms are fully locked (fully synchronized).

  In preferred embodiments of the present invention, one or more of the following features may be optionally used.

  The link member is inserted into the through opening of the control member of the adjustment mechanism on the second side surface, and the link member is deformed so as to expand in the radial direction.

  -The open end of the link member is provided and the expansion member is pushed into the end of the tube.

  The open tubular end is widened by inserting the expansion member with force to exert a compressive stress on the tubular end in the link member;

  The open tubular end is widened by removing the expansion member with force and exerting a traction stress on the end in the link member;

  In step (a), the movable part and the first element are provided in the form of an integral part.

  In step (a), each locking mechanism has a first locking member carried by a fixed part and having a first toothed part, and is complementary to the first toothed part carried by a movable part and is active A second locking member having a second toothed portion cooperating with it in state is provided, and a control member and a second locking member are provided in the form of an integral part.

  In step (a), each locking mechanism has a first locking member carried by a fixed part and having a first toothed part, and an active state fixed to the movable part and complementary to the first toothed part A second locking member having a second toothed portion cooperating therewith is provided, a control member is provided, and the first locking member is moved by contact of the control member and the first locking member. Yes.

  A first fixing portion and a second fixing portion are provided on the link member, a fixing portion is provided on the control member of each side adjustment mechanism, and the second fixing portion of the link member is the first side adjustment mechanism. Is inserted through the through-opening in the control member, and the link member is slid in the opening until one of the second fixing portion of the link member and the fixing portion of the control member of the adjustment mechanism of the second side surface is inserted into the other. . further,

  The operation lever is fixed to the link member by the adjustment mechanism on the first side surface, and the user can operate the operation lever to deactivate the adjustment mechanism on the first side surface.

In another aspect, the present invention provides an automobile vehicle seat. Document FR 2 882 707 describes an example of a sheet having a first side and a second side that are laterally spaced, for example:
Including a first element and a second element coupled on each side by respective adjustment mechanisms;
Each adjustment mechanism includes a movable part fixed to the first element on each side, a fixed part fixed to the second element, a control member, and a locking mechanism controlled by the control member, The adjustment mechanism is unlocked and the two parts are in an inactive state where the two parts are not fully constrained with respect to each other with the degree of freedom of adjustment, and the adjustment mechanism is locked, allowing the two parts to move relative to each other for adjustment. The active state where the two parts can no longer be moved relative to each other for adjustment, and
A link member that extends substantially laterally and connects two control members, the link member being fixed to the control member of the adjustment mechanism on the first side surface, and the control member of the adjustment mechanism on the second side surface. A link member to be coupled is included.

According to the present invention, in order to achieve the above object, the sheet has the following characteristics.
One of the link member and the control member of the second adjusting mechanism is inserted into the other so that the radial clearance is perpendicular to the lateral direction,
The seat further includes a deforming element that radially deforms at least one member selected from the link member and the control member of the second side adjustment mechanism so that they are in close contact with each other.

  In certain embodiments, one or more of the following features may be used.

  -A link member contains a 1st fixing | fixed part and a 2nd fixing | fixed part, and a fixing | fixed part is provided in the control member of the adjustment mechanism of each side surface.

  The fixing portion of the control member of the second side adjustment mechanism defines a through opening, the link member includes a hollow cylindrical tube having a circular cross section, at least a part of which forms the second fixing portion, and the through opening Inserted into.

  The first fixing portion of the link member has a cross section that is not rotationally symmetric, and the fixing portion of the control member of the first side adjustment mechanism is complementary to the shape of the cross section of the first fixing portion of the link member. And the seat further includes an actuating lever that can be actuated by a user to deactivate the first side adjustment mechanism, the actuating lever being coupled to the link member.

  The seat further comprises an adjustment mechanism comprising a seat back frame defining the first element, a base defining the second element, a discontinuous hinge adapted to adjust the relative inclination of the seat back frame and the base; Each including a respective first cheek plate and a second cheek plate, the first cheek plate and the second cheek plate forming a first part and a second part, respectively. .

  The seat further includes a base with two cheek plates and a seat back framework, the base forms the second element, the seat back framework forms the first element, and the cheek plate forms the movable part The locking mechanism is activated only when the fixed portion and the movable portion are in a single relative position.

  Other features and advantages of the present invention will become apparent upon reading the following description of various embodiments, given by way of non-limiting example, with reference to the accompanying drawings, in which:

  Similar reference numbers are used for identical or similar elements in the various figures.

  FIG. 1 shows an automobile vehicle seat 1, which has a seat back 2 mounted to pivot on a seat body 3 about a lateral pivot axis Y, the seat body 3 being a vehicle body. It is attached to the floor 4 via, for example, a runner 5.

  Alternatively, the seat back could be mounted for rotation on a base element other than the seat body 3, for example directly on the runner 5 or on the floor 4.

  The seat back 2 is disposed on the first and second side surfaces of the seat, respectively, and hinge mechanisms 6, 7 constituting an adjusting mechanism that can be operated in a synchronized manner by a handle 8 or some other actuating member. (See FIGS. 1 and 2).

  As shown in FIGS. 2 and 3, the hinge mechanisms 6, 7 face each side of the seat frame, and thus each side arm 2a, 2b spaced laterally of the seat. Arranged. Each of these hinge mechanisms includes first and second portions in the form of first and second cheek plates 9 and 10, referred to as “fixed” cheek plates and “movable” cheek plates, respectively, The frame frames 3a and 3b of the main body and the frame frames 2a and 2b of the seat back are fixed. These two hinge mechanisms typically prevent the seat back 2 from rotating relative to the seat body at a plurality of discrete locking positions, such as described in document FR-A-2 740 406. When an action is taken at 8, the lock is released. It cannot be locked between two successive locking positions. When the hinge mechanism is in the unlocked state, the seat back can freely rotate with respect to the seat body around the pivot shaft.

  More specifically, in this example, the two cheek plates 9, 10 of the two hinge mechanisms are substantially circular in shape and are joined by a crimped metal outer ring 11, each one or more. The inner housings that house the locking mechanisms with the slugs 12 are defined, each having an outer set of teeth 13.

  Each slag 12 has an active state in which the tooth set 13 of the slag meshes with the inner set 15 of teeth belonging to the second cheek plate 10 in the guide 14 belonging to the first cheek plate 9, Installed to move radially between the inactive states (FIG. 3) in which the slug 12 is moved radially inward in such a way that the set 13 does not cooperate with the inner tooth set 15 of the second cheek plate 10. It is done.

  The slug 12 is moved between an active state and an inactive state by a control member such as a cam 16 mounted to rotate about the axis Y. The cam 16 is resiliently biased by one or more springs 17 toward a locking position that moves the slag 12 radially outward toward the active state, actuating the handle 8 to rotate the cam 16. Thus, the cam can be in an unlocked position (FIG. 3) where the slug 12 can be moved radially inwardly.

  Optionally, the slag 12 can be moved radially inwardly by a control plate 18 provided with a through groove 19 that engages a lug belonging to the slag 12, i.e. when the cam 16 is in the unlocked position. 19 the outer edge of 19 cooperates with the lug to move the slag 12 radially inward.

  The cam 16 of the hinge mechanism of the first and second side surfaces 6, 7 is connected by a link member, for example by a substantially rigid tubular link bar 21 extending laterally, so as to be controlled in a synchronized manner by the handle 8. Is done. For example, the bar is made of steel, aluminum, or composite material.

  As particularly seen in FIG. 2, the link bar 21 is inserted in the first step of manufacturing the sheet, and the sleeve 33, which is an integral part of the link bar 21, is the hinge mechanism of the first side 6. This is an integral part of the control member 16 and is inserted into a ring 35 that defines the fixing portion 22a. The sleeve 33 of the link bar 21 defines a first fixing portion 21 a that is complementary to the fixing portion 22 a of the ring 35. The first fixing portion 21a of the link bar 21 is constituted by, for example, a relief-shaped first fixing portion positioned substantially at the first end of the link bar. The fixing part 22a of the ring 35 is constituted by a fixing pattern formed by a through opening 22a complementary to the relief-like first fixing part.

  On the second side, the link bar 21 has a second fixing portion 21b. A ring 37, which is an integral part of the control member 16 of the hinge mechanism on the second side surface 7, defines a fixing portion 22 b that is complementary to the second fixing portion 21 b of the link bar 21. The second fixing portion of the link bar 21 is constituted by a relief-like second fixing portion 21b located at the second end of the link bar, for example. The fixing portion of the ring 37 is constituted by a fixing pattern 22b formed by the through opening 22b. The relief-shaped second fixing portion 21b is inserted into the fixing pattern 22b of the hinge mechanism on the second side surface 7.

  As shown in FIG. 3, in one embodiment, the inner profile of the opening 22a in the hinge mechanism of the first side surface 6 can be formed in a non-axisymmetric shape, particularly at the first end 21a of the link bar. The opening and the sleeve can be in rigid engagement with each other by their complementary shape, with a shape complementary to the cross-section of the sleeve 33 which is an integral part of the link bar. In this embodiment, which is shown merely as an example, the sleeve 33 is provided with three ribs 23 which are inserted into the paired grooves 24 in the opening 22a of the ring 35. Outside the rib, the profile of the opening 22 a can have a toothed portion 25.

  As shown in FIG. 2, when the link bar is inserted into the corresponding opening 22b in the second side hinge mechanism, the second end 21b of the link bar has a narrow circular cross section. After that, the second end is not mechanically held in the second opening 22b and engages it with a certain amount of clearance.

  In the next step of the manufacturing method, a radial deformation, such as widening the end 21b of the link bar, is performed so that the end of the link bar is formed by the cam 16 of the hinge mechanism on the second side. The ring 37, which is an integral part, can be fitted closely into contact.

  A first non-limiting embodiment is shown schematically in FIGS. 4a and 4b. In this example, the link bar 21 has an annular cross section with an outer diameter of 10 mm and an inner diameter of 8 mm at the second end 21b. Therefore, there is a clearance between the outer surface of the link bar and the toothed inner surface of the ring 37, which is an integral part of the cam 16 having an inner diameter in the range of 10.1 mm to 10.5 mm. The expansion element 26 is shown in the form of a stud having a circular cross section and a guide part 27 having a diameter of approximately 7.8 mm and an intermediate part extending from the guide part 27 to an extension part 29 having a diameter of 8.5 mm. ing. The stud is about 22 mm long and has a measurable angle of about 175 ° between the guide portion and the intermediate portion in cross section.

  As shown in FIG. 4b, the stud 26 is inserted into the open tubular end 30 of the link bar by applying force with a suitable tool. If necessary, the link bar is retained during this insertion. This operation results in compressive stress and radial expansion in a direction perpendicular to the transverse axis of the sheet, i.e. expansion of the second end 21b of the link bar, the second end being connected to the second side surface. The ring 37, which is an integral part of the cam 16 forming a control member for controlling the hinge mechanism, is brought into contact with the ring 37 so as to fit closely. Thus, the two hinge mechanisms are joined by the link bar 21 while both are fully locked.

  In the modified embodiment shown in FIGS. 5 a and 5 b, an expandable rivet or “pop” rivet can be used as the expansion element 26. Such rivets are conventionally known to those skilled in the art. When the rod 31 is pulled out, a radial deformation occurs, traction stress is generated in the rivet body 32, and the expansion occurs, so that the first relief fixing portion 21b of the link member is a hinge mechanism on the second side surface. The cam 16 comes into close contact with the fixed pattern 22b formed by the through opening. It is also proposed to perform this expansion step in many variations of the two embodiments shown in FIGS. 4a and 4b and FIGS. 5a and 5b, respectively.

  The link bar 21, for example at its first end 21a, is coupled to the handle 8 to form an actuating lever that can be actuated by the seat user to simultaneously unlock the locking mechanism of the seat hinge mechanism. be able to. This coupling with the handle can also take place before or after the expansion step.

  Once expanded, the second end 21b of the link member 21 fits snugly through a ring 37, which is an integral part of the cam 16, and optionally through a set of teeth provided at the periphery of the opening 22b. And engage. FIGS. 2 to 5b show that the opening 22b in the control member controlling the hinge mechanism on the second side is completely circular, but in a particularly practical manner, the first and second side It should be noted that the same part can be used as the cam 16 of the locking mechanism, and it goes without saying that the groove 24 is not used in the hinge mechanism of the second side surface 7.

  In the illustrated embodiment, the tubular portion of the link bar 21 is fully inserted into the opening 22a provided in the cam 16 of the hinge mechanism of the first and second side surfaces 6. However, the present invention is not limited to this specific method of insertion, and it is possible to take measures so that one of the link member 21 and the control member 16 of the hinge mechanism on the second side surface is inserted into the other. It is.

  FIG. 6 shows a modified embodiment of the present invention, in which a seat back 102 is mounted so as to pivot on a seat body 103 about a horizontal horizontal pivot axis Y. FIG. The elements shown in FIGS. 6 to 9 that correspond to the elements shown in FIGS. 1 to 3 are represented by the same reference numerals plus 100.

  The seat back 102 is rotated by first and second hinge mechanisms 134 similar to the hinge mechanisms 6 and 7 described above, and the first and second hinge mechanisms are arranged on both sides of the seat. Yes. The seat back 102 can also be tipped forward with respect to the seat body 103 by a first tipping mechanism 106 and by a second chipping mechanism 107, which are the first tip of the seat. And an adjustment mechanism which is disposed on each of the second side surfaces and can be operated in a synchronized manner by an operating member (not shown).

  These chipping mechanisms 106 and 107 include a first cheek plate 109 fixed to the movable cheek plate of the corresponding hinge mechanism 134, a second cheek plate 110 fixed to the seat back 102, and a second cheek plate. A catch 116 mounted for rotation about a transverse axis Y ′ parallel to the pivot axis Y on 110 between the active position shown in FIG. 8 and the inactive position shown in FIG. Including. The catch 116 is provided with a tooth 113, which cooperates with the notch 115, and when the catch 116 is in the active position, the tooth is inserted so that the second cheek plate 110 is attached to the tilt axis Y of the seat 1. It is prevented from rotating around the first cheek plate 109. When the catch is in the inactive position, the catch teeth 113 are spaced from the first cheek plate notch 115 and the second cheek plate 110 is seat 1 as shown in FIG. The first cheek plate 109 can be rotated about the tilt axis Y. A spiral spring 117 biases the catch back to the active position.

  The catch is substantially rigid, such as a tubular link bar 121 extending along the transverse axis Y ′ so that the catch 116 of the chipping mechanism on the first and second side surfaces 106, 107 can be controlled in a synchronized manner. Are coupled by the link member. This link bar is the same as the link bar 21 described above. It enables the actuating lever to act on the link bar.

  As described above with respect to the link bar 21, in the first step of manufacturing the sheet, the link bar 121 is inserted, and the relief-shaped first fixing portion 121 a is complementary to the catch 116 of the chipping mechanism of the first side surface 6. Is inserted into the fixed pattern 122a. This pattern is implemented in the form of a through opening 122a. The relief-like second fixing portion 121b located at the opposite end of the link bar 121 is inserted into a complementary fixing pattern 122b such as the through opening 122b in the catch 116 of the chipping mechanism on the second side surface 7.

  The features of the link bar 121 and how it is secured to the catch 116 of the chipping mechanism on the second side 107 are similar to the features of the link bar 21 and how it is secured to the control cam 16. Therefore, I will not elaborate further on that.

It is the schematic which shows the vehicle seat of this invention. FIG. 2 is an axial cross-sectional view showing an adjustment mechanism for coupling the seat back to the seat body in the first step of the manufacturing method in the seat of FIG. 1. FIG. 3 is a cutaway view of the first side surface of the adjustment mechanism shown in FIG. 2 as viewed from the direction of the arrow marked A in FIG. 2. FIG. 4 is a schematic partial cross-sectional view of a part denoted by IV in FIG. 2 showing a second side adjustment mechanism and showing a second step in the first implementation. FIG. 4 is a schematic partial cross-sectional view of a part denoted by IV in FIG. 2 showing a second side adjustment mechanism and showing a second step in the first implementation. It is a figure corresponding to FIG. 4a in 2nd implementation of this manufacturing method. It is a figure corresponding to FIG. 4b in 2nd implementation of this manufacturing method. It is a rear view which shows the modification of the application to the sheet | seat of this invention. It is a perspective view which shows an adjustment mechanism. It is a side view which shows the adjustment mechanism of the 2nd side surface in a 1st position. It is a side view which shows the adjustment mechanism of the 2nd side surface in a 2nd position.

Claims (14)

A manufacturing method for manufacturing an automobile vehicle seat (1, 101) having a first side and a second side spaced laterally, the method comprising:
(A) providing a first element (2,102) and a second element (3,103) joined by a respective adjustment mechanism (6,7; 106,107) on each side;
Each adjustment mechanism includes a movable part (10, 110) fixed to the first element on each side surface, a fixed part (9, 109) fixed to the second element, and a control member (16). , 116) and the control member unlocks the adjustment mechanism, and the two parts (9, 10) become completely unrestricted with respect to each other in a certain degree of freedom of adjustment. 109, 110) can move relative to each other for adjustment, and the adjustment mechanism is locked so that the two parts (9, 10; 109, 110) Including a locking mechanism that alternates active states that cannot move with respect to each other;
(B) joining the two control members by a rigid link member (21, 121) extending substantially laterally;
In this connection, the link member (21, 121) is fixed to the control member (16, 116) of the adjustment mechanism of the first side surface (6, 106), and the link member is fixed to the second side surface ( 7, 107) is coupled to the control member of the adjustment mechanism,
In the method, in the step (b), the link member (21, 121) and the control member (16, 116) of the adjustment mechanism of the second side surface (7, 107) are perpendicular to the lateral direction. One is inserted into the other with a radial clearance, and then the control member (16, 116) of the adjustment mechanism of the link member (21, 121) and the second side surface (7, 107) is The manufacturing method, wherein the link members are fixed to each other by deformation in a radial direction so that the link members come into close contact with the control member of the adjustment mechanism on the second side surface.   The link member (21, 121) is inserted into the through-opening (22b, 122b) in the control member of the adjustment mechanism on the second side surface, and the link member (21, 121) is expanded to extend in the radial direction. The manufacturing method according to claim 1, wherein the manufacturing method is modified into:   3. A method according to claim 2, characterized in that the link member is provided with an open tubular end (30) and the expansion member (26) is pushed into the tubular end by force.   4. An open tubular end according to claim 3, characterized in that the open tubular end is expanded by inserting the expansion member (26) there with force and applying a compressive stress to the tubular end of the link member. Production method.   4. A method according to claim 3, characterized in that the open tubular end is expanded by removing the expansion member (26) with force and applying traction stress to the end of the link member.   6. The step (a) according to claim 1, wherein the movable part (10, 110) and the first element (3, 103) are provided in the form of an integral part. Manufacturing method. In step (a), each locking mechanism has a first locking member carried by a fixed part (109) and having a first toothed part (115), and said first tooth carried by a movable part (110). A second locking member (112) having a second toothed portion (115) that is complementary to the cooperating portion and cooperates therewith in the activated state;
The method according to any one of claims 1 to 6, wherein the control member (112) and the second locking member (112) are provided as an integral part. In step (a), each locking mechanism is supported by the first locking member (12) having a first toothed portion (13) supported by the fixed portion (9) and the movable portion (10). A second locking member (11) having a second toothed portion (15) complementary to and cooperating with the first toothed portion (13) in the active state;
The control member (16) is provided to move the first locking member (12) by contact between the control member (16) and the first locking member (12), The manufacturing method of any one of Claims 1 thru | or 6.   The link member is provided with a first fixing portion (21a, 121a) and a second fixing portion (21b, 121b), and the control member of the adjustment mechanism (6, 7; 106, 107) on each side surface is provided. Fixing portions (22a, 22b; 122a, 122b) are provided, and the second fixing portions (21b, 121b) of the link members (21, 121) are provided in the control member of the adjustment mechanism on the first side surface. The adjustment mechanism of the second fixing portion (21b, 121b) and the second side surface of the link member is inserted through the through-opening (22a, 122a) and the link member is in the opening (22a, 122a). The manufacturing method according to any one of claims 1 to 8, wherein one of the fixed portions (22b, 122b) of the control member is slid until being inserted into the other.   The operating lever (8) is fixed to the link member by the adjusting mechanism on the first side surface, and the user operates the operating lever to make the adjusting mechanism on the first side surface inactive. The manufacturing method according to claim 1, wherein the manufacturing method is possible. A vehicle seat (1, 101) having a first side and a second side spaced laterally,
Including a first element (2,102) and a second element (3,103) joined by a respective adjustment mechanism (6,7; 106,107) on each side;
Each adjustment mechanism includes a movable part (10, 110) fixed to the first element on each side surface, a fixed part (9, 109) fixed to the second element, and a control member (16). , 116) and the control member unlocks the adjustment mechanism, and the two parts (9, 10) become completely unrestricted with respect to each other in a certain degree of freedom of adjustment. 109, 110) can move relative to each other for adjustment and the adjustment mechanism is locked so that the two parts (9, 10; 109, 110) are relative to each other for adjustment Including a locking mechanism that alternates active states that cannot be moved by
A rigid link member (21, 121) extending substantially laterally to couple the two control members, the control member (16, 116) of the adjustment mechanism on the first side surface (6, 106). The link member fixed to the second side surface (7, 107) and coupled to the control member of the adjustment mechanism;
The sheet includes the link member and the control member of the adjustment mechanism on the second side surface, and one of the control members is inserted into the other with a radial clearance perpendicular to the lateral direction.
The sheet further deforms at least one member selected from the link member (21, 121) and the control member (16, 116) of the adjustment mechanism of the second side surface (7, 107) in the radial direction. An automotive vehicle seat characterized in that it includes deformation elements that allow them to contact each other in a snug fit. The link member includes a first fixing portion (21a, 121a) and a second fixing portion (21b, 121b), and the fixing portion (22a, 22b; 122a, 122b) is attached to the control member of the adjustment mechanism on each side surface. Is provided,
In the seat, the fixing portion (22b, 122b) of the control member of the adjustment mechanism on the second side surface (7, 107) defines a through opening, and the link member (21, 121) is hollow with a circular cross section. Including a cylindrical tube, at least a part of which is inserted into the through opening to form the second fixing portion (21b, 121b),
In the sheet, the first fixing portion (21a, 121a) of the link member (21, 121) has a cross section that is not rotationally symmetric, and the control member of the adjustment mechanism on the first side surface in the sheet The fixing part (22a, 122a) has a shape complementary to the shape of the cross section of the first fixing part (21a, 121a) of the link member (21, 121). An actuating lever (8, 108) that can be actuated to bring the adjusting mechanism of the first side surface into the inactive state, and the actuating lever is coupled to the link member (21, 121); The automobile vehicle seat according to claim 11, characterized in that:   Furthermore, it includes a seat back frame assembly (3) that defines the first element and a base (2) that defines the second element, and the adjusting mechanism adjusts a relative inclination between the seat back frame assembly and the base. Each comprising a respective first cheek plate (10) and a second cheek plate (9), said first cheek plate and said The vehicle seat according to claim 11 or 12, wherein a second cheek plate forms the first part and the second part, respectively.   Furthermore, it includes a base (103) provided with two cheek plates (110) and a seat back frame (102), the base forming the second element, and the seat back frame (102) being the first The cheek plate (110) forms the movable part, and the locking mechanism is activated only when the fixed part and the movable part are in one relative position. The vehicle seat according to claim 11 or 12, wherein the vehicle seat is provided.

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