JP2002200934A - Locking system for automotive seat rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an improved locking system to be provided on a seat rail capable of allowing move of an automotive seat, and fixing its position. SOLUTION: For composing contained locking to be contained in a rail mechanism, a locking means 60 includes a lock guide 61 having a guide hole in a bottom surface 69 for enabling a lock 62 to be detachably inserted to the bottom surface of an upper rail 53, so that it is fixed, the lock 62 provided between the lock guide 61 and the upper rail 53, connected to an actuation lever at an upper part, and provided with locking protrusions 75 and 76 at a lower part for elevation, lock holes 63 and 64 formed in the length direction from the center of a lower rail 62 at a constant interval to be engaged with the locking protrusions 75 and 76, and a lock spring 65 to push the lock 62 to be engaged with the lock holes 63 and 64 in the lower rail 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking system for a vehicle seat rail.
(ng system of seat rail assembly for vehicle), and more specifically, locking to maintain the optimal seating state by intermittently adjusting the movement of the lower rail and upper rail that constitute the seat rail in the front and rear directions. It is about improving the system.

2. Description of the Related Art A vehicle seat is used to maintain the riding posture of a vehicle occupant, and is provided in a driver's seat and a passenger seat so that only one person can take a seat. The seat is divided into a bench-type seat or a multi-row seat provided at the back of the passenger compartment so that the passenger can take a seat. In the case of the separate type provided in the driver's seat and the front passenger's seat, only one person can be seated, and the seat is moved forward and backward according to the physical condition of the seated person to easily take a posture. The seat is seated and fixed above the seat rails so that it can be maintained.

[0003] The seat rail as described above includes a lower rail fixed to the floor of a vehicle body of an automobile, and an upper rail fixed to a seat. The seat rail as described above is provided with a locking system as a means for limiting the movement of the upper rail to which the seat is fixed, such that the upper rail moves forward and backward while sliding on the lower rail.

[0004] The prior art seat rail 1 as described above
Is the seat rail of the car, as shown in Figs.
Reference numeral 1 denotes a configuration including a lower rail 3 having fixing brackets at both ends so as to be fixed to a floor of a vehicle body, and an upper rail 4 coupled to the lower rail 3 and fixing a seat for seating a passenger upward.

[0005] On the lower rail 3 and the upper rail 4,
The lower end is provided with flanges 5, 6 bent outward and inward, respectively. A means for facilitating sliding of the upper rail 4 with respect to the lower rail 3 is provided between the flanges 5 and 6, and a ball seat or a roller (not shown) having the ball 7 is interposed therebetween. of course,
Place the seat in front of the lower rail 3 and upper rail 4
Locking means 10 is provided for maintaining the moved state so as to be able to move backward. The locking means 10 includes a locking hole 11 formed in the lower rail 3 and a lock 12 provided in the upper rail 4, and the lock 12 is provided on a lock guide 13 fixed to the upper rail 4 for restoration. In this configuration, a hinge is fixed to the lever 14 via a coil-type spring (not shown).

[0006] In the conventional locking system as described above, the locking system is configured to protrude from the inside of the seat rail, so that the appearance of the completed seat rail may not be excellent, and in particular, the locking system may be particularly locked. The size of the components of the system will be of considerable thickness and length to satisfy strength and durability, causing the weight of the seat rail to be heavy.

In particular, after the seat rail is mounted on the actual vehicle,
In order to prevent damage and deformation due to impacts caused by the running of automobiles, and the phenomenon of separation of seat rails, the lower rail and upper rail must be considerably thickened to reinforce the strength. There is a problem that is not associated with the automobile production line that can contribute to reducing fuel consumption. A locking hole is formed at the bent portion of the lower rail that constitutes the seat rail, and the lock is coupled and locked by a method that rotates from the side of the locking hole, so that it is mounted on an actual vehicle. Later, in the course of the operation, the load is concentrated in the direction in which the seat rail is mounted on the locking system, and the degree of fatigue is increased. In particular, there is a high possibility that the seat rail will be detached from the locking system in the event of a collision or collision.

[0008] Not only this, but also considerable attention is paid to the tolerance management of the entire locking system, for example, in order to bend the lower rail with the locking hole formed, the design must take into account the deformation after bending. There are various problems, such as the need to concentrate the data, and the possible increase in overall manufacturing costs.

[0009]

SUMMARY OF THE INVENTION Therefore, according to the present invention, there is provided a sheet having functions such as being capable of moving and fixing the position of a sheet as being invented to solve the above problems. The locking system installed on the rail has been improved so that it can be installed inside the lower rail and upper rail so that nothing is exposed to the outside. It is intended to contribute to the improvement of productivity while contributing to the improvement of durability and quality.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure and operation of an embodiment of the present invention for achieving the above object will be described below with reference to the accompanying drawings as follows. Figure 1
1 is a perspective view illustrating an automobile seat rail to which a locking system according to the present invention is applied. FIG. 2 is an exploded perspective view of an automobile seat rail to which the locking system according to the present invention is applied. FIG. 3 is a cross-sectional view of the automobile seat rail applied to FIG. 2, taken along line AA.
FIG. 4 is a cross-sectional view of the automobile seat rail applied to FIG. 2 taken along line BB. FIG. 5 is described together as a cross-sectional view excerpting a lock portion which is a C portion in FIG.

The present invention is characterized in that the locking means for enabling the movement in the front-back direction and maintaining the moved state is a storage locking structure in which the locking means is stored in the rail mechanism. Normal car seat rail 50
Is composed of a lower rail 52 having fixing brackets 51 fixed to both sides so as to be fixed to a floor panel of an automobile, and an upper rail 53 which is connected to the lower rail 52 and fixes a seat for seating a passenger upward. .

Both ends of the lower rail 52 and the upper rail 53 in the width direction are different in direction (U-shaped),
(Inverted U-shape) shape and bent connecting flanges 54 and 55 are formed. Between the connecting flanges 54 and 55, as means for facilitating the sliding of the upper rail 53 with respect to the lower rail 52, balls 56 and 57 are provided on the upper and lower sides.
With a retainer 58 having.

The lower rail 52 and the upper rail 53 are further provided with a locking means 60 for allowing the seat to move in the front-rear direction and maintaining the moved state. Looking at the locking means 60 to which the technology of the present invention is applied in detail, a lock guide 61 fixed to the bottom surface of the upper rail 53, the lock guide 61 and the upper rail
A lock 62 interposed between the lower rail 52 and the center of the lower rail 52, and lock holes 63 and 64 formed at equal intervals in the longitudinal direction of the rail, and a lock hole 63 of the lower rail 52 by pushing the lock 62. The lock spring 65 is designed to mesh with the lock spring 64.

The lock guide 61 has a body 66 bent in a substantially ∪ shape so that the lock 62 can be interposed. Fixed protrusion 67 formed by projecting from the upper surface of body 66
Utilizing a fixing hole formed on the upper surface of the upper rail 53
A guide hole 70 is formed on the bottom surface 69 of the body 66 so that the lock 62 can lock the lock holes 63 and 64 of the lower rail 52. Lock 62
A connection hole 72, which can be connected to an operation lever 71 (FIG. 1) protruding from the front of the seat rail 50, is formed on the upper side so as to protrude from an access hole 73 formed on the upper surface of the upper rail 53. Below the lock 62, locking projections 75 and 76 are formed which are engaged with the lock holes 63 and 64 of the lower rail 52 via the guide holes 70 of the lock guide 61 and restrict the movement of the seat rail 50. At the center of the lock 62, a spring pin 77 protruding laterally is formed so as to transmit and receive the elastic force of the lock spring 65.

The lock spring 65 is a bar type in which both sides incline upward with respect to the center. The center and both sides of the lock spring 65 have a round shape so as to be hooked on a spring pin 77 and a catch hole 78 formed in the upper rail 53, respectively. The bent portions 79 and 80 are formed. Looking at the working relationship of the locking system 60 of the present invention as described above, the initial state is that the lock guide 61 fixed to the bottom surface of the upper rail 53.
The lock 62 interposed in the lock guide 65 passes through the guide hole 70 of the lock guide 61 by the pressing force of the lock spring 65,
Lock holes 6 formed at equal intervals in the center of the lower rail 52
The locking projections 75 and 76 are inserted into the positions 3 and 64, respectively.

In this state, the movement of the upper rail 53 of the seat rail 50 is restricted (prohibited), and the connection hole 72 of the lock 62 protruding above the upper rail 53 is provided.
Has an operating lever 71 protruding forward of the seat rail 50.
Are connected at the rear end. In order to adjust the seating position, driving posture, and the like by moving the seat rail 50 from such a state, the upper rail 53 is pulled by pulling the operating lever 71 protruding forward of the seat rail 50.
Lock that protrudes upward and is connected to the operating lever 71
62 rises against the force held by the lock spring 65. As the lock 62 rises, the lock 62
The locking projections 75 and 76 formed below the upper rail 53 are disengaged from the state where they are coupled to the lock holes 63 and 64 formed in the lower rail 52, and the upper rail 53 can slide on the lower rail 52, which the passenger desires. The seat can be moved to the position (forward, backward).

After the position of the seat is determined, the lock 62 is lowered by the spring force of the lock spring 65 by releasing the operating lever 71 that has been pulled. At the time of lowering, the locking projections 75 and 76 formed below the lock 62 pass through the guide holes 70 of the lock guide 61 and lock holes 63 and 64 formed in the lower rail 52.
To the upper rail 53 as in the initial state.
Movement is restricted (prohibited).

As described above, according to the present invention, since the locking system 60 is not exposed to the outside of the seat rail, not only the appearance during the manufacturing process is improved, but also the product alignment can be maintained during the distribution process. Not only this, but the locking system 60 includes the lower rail 52 and the upper rail 53.
Because it is located at the center of the inside, the operation stability can be ensured without the phenomenon of tilting to one side during the operation process.

In particular, since the volume and weight of the entire locking system 60 can be minimized, it is possible to contribute to a reduction in overall production costs and processes, and to reduce the overall weight when mounted on an actual vehicle. In addition, the present invention is also effective in reducing the kinetic performance and fuel consumption of the vehicle. In the locking system 60 of the present invention as described above, a locking hole is formed in the upper rail, the lock guide is fixed to the lower rail, and a change in form that allows the lock to enter and exit the lower rail, and other simple designs. Changes belong to the category of the present invention.

[0020]

According to the present invention as described above, the locking system provided on the seat rail having functions such as movement and position fixing can be improved, and the locking system is installed inside the lower rail and the upper rail, and is exposed to the outside. In addition, there are many effects such as excellent appearance, maintaining a simple structure and operability, and contributing to improvement of productivity while contributing to sufficient durability and quality improvement.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating an automobile seat rail to which a locking system according to the present invention is applied.

FIG. 2 is an exploded perspective view of an automobile seat rail to which a locking system according to the present invention is applied.

FIG. 3 is a view of a vehicle seat rail A applied to FIG.
Sectional drawing cut | disconnected along the -A line.

FIG. 4 is a view of a vehicle seat rail B applied to FIG.
Sectional drawing cut | disconnected along the -B line.

FIG. 5 is a cross-sectional view illustrating a lock portion that is a C portion in FIG. 4;

FIG. 6 is a partially broken perspective view showing a seat rail locking system to which the prior art is applied.

7 is a cross-sectional view of the related art applied to FIG. 6, taken along line D-D.

[Explanation of symbols]

 50; Seat rail 52; Lower rail 53; Upper rail 60; Locking means 61; Lock guide 62; Lock 63, 64; Lock hole 65; Lock spring 70; Guide hole 75, 76;

Claims (7)

[Claims] 1. A lower rail 52 having fixed brackets 51 fixed to both sides, an upper rail 53 coupled to the lower rail 52 to fix a seat for seating a passenger upward, and a width direction of the lower rail 52 and the upper rail 53. Connecting flanges 54 and 55 which are bent in different directions at both ends of the upper rail 53 and balls 56 interposed between the connecting flanges 54 and 55 so that the upper rail 53 can easily slide on the lower rail 52. , 57 interposed retainer
In the vehicle seat rail including 58; locking means 60 for holding the moved state is provided in the lower rail 52 and the upper rail 53 so that the seat can be moved in the front-rear direction, and is stored in the rail mechanism. A locking system for a vehicle seat rail, characterized in that it has a storage locking configuration. 2. A lower rail 52 having fixed brackets 51 fixed to both sides, an upper rail 53 coupled to the lower rail 52 to fix a seat for seating a passenger upward, and a width direction of the lower rail 52 and the upper rail 53. Connecting flanges 54 and 55 which are bent in different directions at both ends of the upper rail 53 and balls 56 interposed between the connecting flanges 54 and 55 so that the upper rail 53 can easily slide on the lower rail 52. , 57 interposed retainer
In the automobile seat rail including 58; locking means 60 for storing the seat in the lower rail 52 and the upper rail 53 for allowing the seat to move in the front-rear direction and for maintaining the moved state is housed in the rail mechanism. In order to constitute storage locking; the locking means 60
A lock guide 61 formed in a bottom surface 69 and fixed to the upper rail 53 so that the lock 62 can enter and exit from the upper surface of the upper rail 53; interposed between the lock guide 61 and the upper rail 53, The upper portion is connected to the operating lever 71, and the lower portion forms a locking projection 75, 76, and a lock 62 that moves up and down; a locking projection 75 in the center of the lower rail 52 in the longitudinal direction of the rail 52,
Lock holes 6 formed at equal intervals to engage with 76
3 and 64; press the lock 62 above to lock the projections 75 and 76
And a lock spring 65 for engaging the lock holes 63 and 64 of the lower rail 52 with the lock springs. 3. The device according to claim 1, wherein the resilient force of the lock spring 65 can be transmitted to the center of the lock 62.
A locking system for an automobile seat rail, further comprising a spring pin 77 protruding laterally. 4. The lock spring 65 according to claim 1, wherein the lock spring 65 is formed as a bar type in which both sides are inclined upward with respect to the center, and a lock 62 and an upper rail 53 are formed at the center and both sides of the lock spring 65. Spring pin 77
And a round bent portion 79, 80 formed so as to be hooked on each of the hook holes 78 and the locking holes 78, respectively. 5. A seat-side rail fixed to a vehicle seat is combined with a floor-side rail fixed to a vehicle body floor of the vehicle so as to be movable in a longitudinal direction of the rail, so that the position of the seat can be adjusted. And a locking system for an automobile seat rail in which a locking mechanism for fixing the seat at a desired position is installed between the seat side and the floor side rail, wherein one of the seat side rail and the floor side rail is substantially vertically moved. A lock is provided so as to penetrate the rails on the other side and to approach / separate substantially vertically with respect to the other side rail, and the other of the seat side rail and the floor side rail is provided with an engagement portion for engaging the lock. Are formed at predetermined intervals or continuously along the longitudinal direction of the rail, and the lock is unlocked to a desired position on the seat. After the position adjustment, the lock is engaged with the engaging portion, the seat locking system for a motor vehicle, characterized in that the sheet is constructed as a locked state. 6. A spring for urging the lock so as to engage with the engaging portion, and moving the lock against the urging force of the spring, thereby engaging the lock with the engaging portion. 6. The vehicle seat locking system according to claim 5, further comprising: an operating member that eliminates the movement of the seat-side rail with respect to the floor-side rail. 7. The lock is guided by a lock guide for engagement and disengagement with the engaging portion, and the lock guide is fixed to one of the seat side rail or the floor side rail and the other side. Extending towards
The lock protrudes from the lock guide and is engageable with an engaging portion of a rail on the other side, and the engaging portion is a plurality of lock holes provided at predetermined intervals on the rail on the other side. 6. The locking system for a vehicle seat according to claim 5, wherein the lock enters a lock hole located on an extension of the direction of movement of the lock, and is locked.