Front seats of the car (VAZ-2109)

The front seats are "anatomical", separate, like armchairs, with headrests, with stepless adjustment of the backrest tilt. Each seat is installed on two runners and a rocking stand 19 (figure 153). The stand is mounted pivotally in the front brackets 20, which are attached to the body floor with studs 21. To facilitate the forward movement of the seat, the stands have two torsion bars 22, the lower ends of which are inserted into the holes of the brackets 20, the upper ends are inserted into the stops welded to the stand 19. The seat can move forward and backward by 119 mm.





The base 1 of the seat cushion 2 consists of strong steel frames and a cushion tray stamped from sheet steel. A reinforcement is welded to the tray. The base 10 of the backrest is made of strong steel frames to which wire springs are attached. To avoid squeaking, the ends of the springs are covered with a layer of polyamide resin. The base of the backrest is hinged to the base 1 of the cushion by the lower links of the tilt adjustment mechanism.

Guides 6 of headrest 4 are welded to base 10 of backrest. Headrest frame 5 is stamped from sheet steel and secured with two stoppers in the form of clamps on round headrest stand. Ends of stands have three stamped recesses for fixing headrest with cotter pins 7, each of which is pressed into one of the recesses through slot in guide. Headrest is adjusted manually both in height and in angle of inclination by rotation on stand around horizontal axis. From below headrest is closed with plastic facing secured with two screws.

Cushion 2, backrest 3 and headrest 4 of VAZ-2108 and 21081 cars have polyurethane foam padding, underlay and upholstery. The upholstery is made of composite knitted material "Grabotina" or caprovelour. Its color is selected depending on the color of the car body.

On VAZ-21083, as well as on VAZ-2109 and 21093 cars, the front seats differ mainly in the individual elements of the cushion and back upholstery.

Each of the front seats of the cars under consideration and their modifications has mechanisms for moving the seat forward and backward, adjusting the backrest tilt, and folding the backrest forward.


The seat movement mechanism has runners (figure 154), consisting of guides 12 and sliders 2 and 10, which are stamped from sheet steel. The guides are bolted to the rear brackets of the body. The sliders can move along the guides, each on two rollers 11. To prevent the rollers from falling out and to limit their convergence, stampings are provided on the lower plane in its middle part and at the ends. The sliders have stampings on the rear ends. Rubber rings are installed in the annular grooves of the rollers. The upward and lateral displacement of the sliders is limited by the edges of the sliders and guides. The sliders are hinged to the base of the cushion.



The seat is fixed in the desired position by latches 5, each of which is pressed by spring 4 into one of the grooves of comb lock 1 of the movement mechanism. The latches are welded to the guides. The levers 6 of the latches of the inner and outer runners are connected to each other by rod 8. The latch of the outer runners is fixed on rod 13 with handle 14 of the seat movement mechanism. By pressing the handle, the latches are disengaged from the comb locks and the seat is moved to the desired position. When the handle is released, the seat is fixed by the latches under the action of the springs. The coordination of the action of the latches of the inner and outer runners is achieved by bending rod 8.

The original can be viewed on the portal VAZbook

The backrest tilt adjustment mechanism allows you to turn the handle 15 (see figure 153) mechanism to change the position of the backrest. For the driver or passenger to rest, the backrest of the front seat can be set to the most comfortable position. The maximum angle of the backrest tilt back is 80°C from the vertical. The mechanism consists of two pairs of upper 4 (figure 155) and the lower 3 links. The upper links are welded to the base of the backrest. The links are connected to each other by a hinge using two eccentrics and two internal engagement gear pairs (not shown in figure 155), stamped on the upper and lower links. The upper links have 30 teeth, the lower links have 29. The toothed pairs assembled with the eccentrics are non-separable and cannot be serviced or repaired. The links are pressed against each other by a spring washer. Both eccentrics of the mechanism, which have square holes, are connected to each other by a synchronizer 9 of tubular cross-section with stamped squares at the ends. A holder 13 is installed on two flats of the outer eccentrics (see figure 153), made of polycarbonate, and is attached with bolt 14 to the end of the eccentric through a gasket. A plastic handle 15 of the backrest tilt adjustment mechanism is placed on the holder. The mechanism is covered on the side with plastic facings 11.



When turning handle 15, both eccentrics rotate, providing deflection of the upper links and the back of the front seat as a whole.

The mechanism for folding the front seat backrest of VAZ-2108, 21081 and 21083 cars ensures the convenience of boarding passengers in the back seat. In this case, the backrest is folded forward, for which the lower links 3 (see figure 155) are mounted on a hinge on the base of the cushion. In the normal position, the lower links are fixed to the fingers of the cushion base with hooks 1 under the action of springs 2. The hooks are connected by rods 5 to the lever of the handle 7 of the folding mechanism. The rods are placed in polyamide shells 6, the guides of which are installed in brackets welded to the base of the backrest. The handle lever is covered with lining 8 (see figure 153).

On VAZ-2109 and 21093 cars there is no need to fold the backrests. Therefore, they do not have levers with handles 7 (see figure 155) and rods with shells 6. The remaining parts of the mechanism are in place and, if necessary, the back can be folded back by manually pressing hooks 1.

On VAZ-2108 cars and its modifications, when the handle 7 of the folding mechanism is moved upward, the rods 5 move the hooks 1 back and release the lower links 3, after which it is possible to move the seat back forward for the passage of passengers. When the seat back returns to its normal position, the hooks lock the lower links and the back as a whole by the fingers of the cushion base. Normal operation of the backrest folding mechanism is ensured by changing the lengths of the rods 5 and securely fastening them by bending the ends of the rods on the lever and hooks of the mechanism.