KR20030007252A - Slide track of seat for automobile - Google Patents

Abstract

PURPOSE: A slide track of a seat for a vehicle is provided to reduce the production cost and the assembling process by compacting the structure of a steel retainer for smoothly guiding the movement of a rail. CONSTITUTION: A sliding unit(40) has an upper and lower clearance-preventing section fitted to a channel(12) of a fixed rail(10) and a T-shaped retainer(41) having supporting sections symmetrically extending from the upper end of the upper and lower clearance-preventing section and placed between an outward flange(11) of the fixed rail and an upper face(22) of a movable rail(20). Since the retainer is formed by injecting synthetic resin, the structure is compacted and the production cost is cut down.

Description

Slide track of car seat {SLIDE TRACK OF SEAT FOR AUTOMOBILE}

The present invention relates to a slide track of a car seat, and more particularly, to a slide track of a car seat disposed between the seat and the bottom of the vehicle body so that the movement of the car seat can be smoothly before and after.

In general, the seat of the car is to allow passengers to ride comfortably, a separator type seat which can be seated in the driver's seat and a passenger seat and seated only by one person, and a bench type seat which can be seated at the same time by several people at the back of the passenger compartment. Or multi-sheet sheets. The separator-type seat is mounted on the bottom of the vehicle body through a slide track and slides forward and backward. This is to comfort the posture by moving the seat according to the occupant's body shape. In particular, by moving the driver's seat in accordance with the body shape of the driver, the driver can easily operate various devices and pedals.

1 and 2, the slide track of a conventional car seat, and a pair of fixed rails (1) fixed side by side at regular intervals on its own floor, and slides along the fixed rails (1) The upper surface includes a pair of moving rails 2 fastened to the lower part of the seat through mounting bolts (not shown), locking means (not shown) for maintaining the moved state of the moving rails 2, and a fixed rail. The sliding means 3 which is interposed between (1) and the moving rail 2 so that sliding of the moving rail 2 is made easy is provided.

The sliding means 3 is fitted between the moving rail 2 and the front and rear ends of the fixed rail 1, respectively, and is provided at the front and rear ends of the retainer 3a and the left and right sides of the retainer 3a. Four steel balls 3b for preventing left and right play between the moving rail 2 and the fixed rail 1, and one roll disposed above the center of the retainer 3a and rolling in contact with the moving rail 2 ( 3c).

As a result, the plurality of steel balls 3b and the rolls 3c provided in the retainer 3a move smoothly in the front-rear direction while rolling the rolling motion.

However, in the sliding means 3 of the conventional slide track, a plurality of steel balls 3b and rolls 3c are installed through the retainers 3a, and many of the components thereof make the assembly work complicated. That is, the task of inserting a plurality of steel balls (3b) into the retainer (3a) made of a steel plate through a separate steel ball inserting device is made difficult, and the number of molds due to the production of the sliding means (3) increases the manufacturing cost Causes a rise in. In addition, since the retainer 3a is manufactured through a steel plate to perform only a function of guiding the rolling motion of the plurality of steel balls 3b and the rolls 3c, the manufacturing process thereof is also complicated.

The present invention is to solve this problem; SUMMARY OF THE INVENTION An object of the present invention is to provide a slide track for an automobile seat which can reduce the manufacturing cost and workmanship by making the steel ball (ball) retainer guiding the sliding movement of the moving rail more easily and more compact. It is.

Another object of the present invention is to provide a slide track of a seat for a vehicle in which the retainer can guide the sliding of the movable rail.

1 is a cross-sectional view showing a part of the slide track of a conventional vehicle seat.

2 is a perspective view showing a steel ball retainer of a conventional slide track.

Figure 3 is a perspective view showing a slide track of the vehicle seat to which the present invention is applied.

4 is a cross-sectional view taken along line IV-IV of FIG. 3.

5 is a perspective view showing the retainer according to the present invention.

* Description of the symbols for the main parts of the drawings *

10 .. Fixed rail 20 .. Moving rail

40. Slider 41. Retainer

42. Upper and lower clearance prevention part 43L, 43R .. Support part

44L, 44R .. Right and left clearance prevention part 45. Acceptance hole

50. Steel balls

The present invention for achieving this object is;

It is fixed to the bottom of the vehicle body and provided with outward flanges at the top of both sides, the fixed rail with a channel formed in the longitudinal direction, and both sides are bent downward to surround both sides of the fixed rail and the upper surface is fastened to the lower portion of the seat along the fixed rail In a slide track of an automobile seat having a moving rail moving in the front and rear direction, and a sliding means interposed between the moving rail and the fixed rail to smoothly move the moving rail,

The sliding means is injection molded through a synthetic resin and inserted into a channel of a fixed rail to prevent a vertical gap between the fixed rail and the moving rail, and a vertical gap preventing part, and to prevent the vertical gap from being positioned between the outward flange of the fixed rail and the upper surface of the moving rail. And a retainer of "T" shape with a support extending symmetrically on both sides at the top of the portion.

In addition, both sides of the retaining portion of the retainer is characterized in that the left and right clearance prevention portion extending downward to be inserted between the outward flange of the fixed rail and the side wall of the moving rail is provided.

In addition, the retainer may be injection molded from nylon resin to which 5% molybdenum is added.

In addition, the sliding means is characterized in that it further comprises a plurality of steel balls are inserted into the support edge of the retainer to enable the rolling movement while the outer circumference is in contact with the outer surface of the fixed rail and the inner surface of the moving rail at the same time.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 3, the slide track of the vehicle seat according to the present invention has a fixed rail 10 fixed to the bottom of the vehicle body, slides along the fixed rail 10, and an upper surface of the slide track of the seat (not shown). The moving rail 20 fastened to the lower portion, the locking means 30 for maintaining the moving state of the moving rail 20 moving along the fixed rail 10, the fixed rail 10 and the moving rail 20 Interposed between the front and rear of each is provided with a sliding means 40 to facilitate the sliding of the movable rail (20). Each of these components is arranged in parallel to the bottom of the sheet, the detailed structure is as follows.

First, the fixed rail 10 is fixed to the vehicle body in the front and rear direction, by forming the outward flange 11 to be symmetrical by bending the upper end of both sides there is formed in the longitudinal direction in the channel 12 of a predetermined depth. In addition, at the edge of the outward flange 11 of the fixed rail 10, a sawtooth engaging groove 31 constituting the locking means 30 to be described later is formed in the longitudinal direction.

The moving rails 20 are bent at both sides 21L and 21R downward so as to comfortably surround both sides of the fixed rail 10, and the upper surface 22 of the moving rails 20 is disposed on the lower frame (not shown) of the seat. It is firmly mounted via a mounting bolt (not shown).

And the locking means 30 is coupled to the engaging grooves 31 of the tooth-shaped formed at regular intervals along the lower side of the outward flange of the fixed rail 10, the hinge is coupled to the side (21R) of the movable rail 20 of the return spring And a catch bracket 33 in which the catch portion 33a is formed to be engaged with the locking groove by the elastic force, and a lever 34 for releasing the engagement of the catch bracket 33. Such locking means 30 Is disposed symmetrically on the pair of moving rails 20 and the fixed rail 10, and both ends of the lever 34 are coupled to each other to operate simultaneously.

On the other hand, as shown in Figures 4 and 5, the sliding means 40 is interposed between the fixed rail 10 and the moving rail 20 to prevent their play and at the same time to slide the sliding of the moving rail 20 A plurality of steel balls 50, which are guided to the retainer 41 and inserted into the retainer 41, the outer periphery of the fixed rail 10 in contact with the outward flange 11 and the inner surface of the moving rail 20 at the same time rolling motion; Steel ball).

The retainer 41 is injection-molded through a synthetic resin, and has a vertical clearance prevention portion 42 that is tightly fitted to be coupled to the channel 12 of the fixed rail 10 to prevent shaking, and the vertical clearance prevention portion 42 It has a support portion (43L) 43R extending symmetrically on both sides at the upper end of the) and positioned between the outward flange 11 of the fixed rail (10) and the upper surface (22) of the movable rail (20). Accordingly, the retainer 41 is formed to have a generally "T" shaped cross section, and the movable rail 20 is in direct contact with the fixed rail 10 by the supporting portions 43L and 43R of the retainer 41. It doesn't work and it moves smoothly.

In addition, the left and right sides extending downward to be inserted between the outboard flange 11 of the fixed rail 10 and the side walls 21L and 21R of the movable rail 20 at both edges of the supporting portions 43L and 43R of the retainer 41. The clearance prevention portions 44L and 44R are correspondingly formed, so that the movable rail 20 moves while maintaining a constant distance from both sides of the fixed rail 10.

As described above, the retainer 41 is injection molded through a synthetic resin, but in the present invention, molded in a nylon resin. Nylon resin has a small coefficient of friction, wear resistance and self-lubrication compared with other resins. In addition, in the embodiment of the present invention was added 5% molybdenum (Mo; molybdenum) of high hardness to the nylon resin, to increase the wear resistance of the retainer (41).

The plurality of steel balls 50 are inserted before and after the edges of the supporting portions 43L and 43R of the retainer 41. To this end, the front and rear edges of the supporting portions 43L and 43R of the retainer 41 are perforated with a receiving hole 45 for inserting the steel balls 50 so as to be able to make a rolling motion. Therefore, each steel ball 50 is exposed to a portion of the outer circumference in the inserted state in the receiving hole (5) and at the same time in contact with the corner of the outward flange 11 of the fixed rail 10 and at the same time on the inner surface of the moving rail (20) In contact with the cloud movement.

Next, the operation of the sliding means according to the present invention configured as described above and the effects thereof will be described.

First, when the occupant sits on the seat and grabs the center of the lever 34 and lifts it upward, the foreign material between the catch portion 33a and the catching groove 31 of the catch bracket 33 is released.

In this state, when the sheet is pushed in the front-rear direction, the sheet moves along the fixed rail 10 along the fixed rail 10 in the front-rear direction. Then, if the lever 34 is released after the seat is properly moved, the catch 33a and the catching groove 31 of the catch bracket 33 are bitten again to maintain the moved state.

The plurality of steel balls 50 inserted into the support portions 43L and 43R of the retainer 41 during the movement of the movable rail 20 are the outward flange 11 of the fixed rail 10 and the inner surface of the movable rail 20. By moving in contact with the rolling motion of the moving rail 20 is made more smoothly.

In addition, the left and right clearance prevention portions 44L and 44R formed on the support portions 43L and 43R of the retainer 41 are always in close contact between the outward flange 11 of the fixed rail 10 and the side wall of the movable rail 20. By being positioned in the closed state, play does not occur during the movement of the moving rail 20.

In addition, during the movement of the moving rail 20, the vertical clearance prevention portion 42 and the support portion 43L (43R) of the retainer 41 rubs against the moving rail 20 and the fixed rail 10, the wear damage thereof It rarely occurs. This is because it is molded from nylon resin to which 5% molybdenum is added to further increase the wear resistance of the retainer 41.

As a result, the sliding means 40 is formed by inserting a plurality of steel balls 50 in the retainer 41 formed of nylon resin, thereby making the overall compact and the manufacturing process is also made simple.

As described above in detail, according to the slide track of the vehicle seat according to the present invention, the sliding means is injection molded through the synthetic resin and the upper and lower clearance preventing portion is fitted into the channel of the fixed rail, coupled with the outward flange of the fixed rail It includes a "T" shape retainer having a support portion symmetrically extended from both the upper end of the upper and lower clearance prevention portion to be located between the upper surface of the rail. Accordingly, the retainer is easily manufactured and compactly made through the synthetic resin, and its manufacturing cost is also reduced. In addition, since the retainer itself can guide the sliding of the movable rail, there is an advantage that the forward and backward movement of the movable rail becomes more stable.

Claims (4)

Fixed rails 10 fixed to the vehicle body floor and having outward flanges 11 formed on both upper ends thereof, and having a channel 12 formed in the longitudinal direction, and both sides 21L of the fixed rails 10 so as to surround both sides of the fixed rails 10 ( 21R) is bent downward and the upper surface 22 is fastened to the lower portion of the seat to move the front and rear directions along the fixed rail 10, between the movable rail 20 and the fixed rail 10 In the slide track of the vehicle seat having a sliding means 40 which is interposed in the smooth movement of the moving rail 20, The sliding means 40, Injection molding through a synthetic resin is inserted into the channel 12 of the fixed rail 10 and the vertical clearance prevention portion 42 for preventing the vertical clearance between the fixed rail 10 and the moving rail 20, A support portion 43L extending symmetrically to both sides from an upper end of the vertical clearance prevention portion 42 so as to be located between the outward flange 11 of the fixed rail 10 and the upper surface 22 of the movable rail 20 ( A slide track for an automobile seat with sliding means, comprising a retainer 41 in a " T " shape with 43R). The method of claim 1, At both edges of the supporting portions 43L and 43R of the retainer 41, the lower portion extends downward between the outward flange 11 of the fixed rail 10 and the side walls 21L and 21R of the movable rail 20. A slide track for an automobile seat, characterized by providing left and right play prevention portions 44L and 44R. The method of claim 1, The retainer (41) is a slide track of an automobile seat, characterized in that the injection molding of nylon resin to which 5% molybdenum is added. The method of claim 1, The sliding means 40, Rolling motion is inserted at the edges of the supporting parts 43L and 43R of the retainer 41 so that the outer circumference simultaneously contacts the outward flange 11 of the fixed rail 10 and the inner surface of the moving rail 20. A slide track of an automobile seat further comprising a plurality of steel balls (50) to move.