KR101361223B1 - The folding device which is the work of the seat for a car - Google Patents

Abstract

Disclosed a walk-in and folding device for a vehicle seat capable of sufficiently improving the pressure-resistant capacity of the stopper of a walk-in bracket while minimizing increase in weight and the number of parts by forming the stopper of the walk-in bracket in a dual structure. The walk-in and folding device for a vehicle seat has the structure of an arm-plate having a seat back installed thereon and installed on a recliner base to be able to rotate. And the walk-in and folding device comprises a recliner assy for reclining the seat back; a walk-in tool for conducting a walk-in function by interlocking with the assy of the recliner; and a folding tool for folding the seat back, wherein the stopper is formed in a dual structure on the walk-in bracket of the walk-in tool.

Description

Walk-in and folding device for car seats {THE FOLDING DEVICE WHICH IS THE WORK OF THE SEAT FOR A CAR}

The present invention relates to a walk-in and a folding device of a vehicle seat, and more particularly, to a walk-in and folding device of a vehicle seat to be able to improve the durability of the operation portion subjected to the load during the walk-in and folding operation.

The seat of the vehicle allows the driver or passenger to sit in a comfortable position so that fatigue is not felt even during long distance travel. The seat supports the load of the passenger and is slidably installed back and forth on the floor of the room. And a seatback that is rotatably installed at a predetermined angle with respect to the seat cushion and supports the back of the occupant.

Meanwhile, people of various body sizes may ride in the boarding space of the vehicle, and various spaces may be required for loading goods.

In order to satisfy these requirements, the seat back is conventionally folded and its angle can be freely adjusted. Recently, however, in order to facilitate the occupant of the rear seat, three-door vehicles, vans, SUVs and RVs have been made to slide the front seats forward to increase the open area of the doors. In addition, a reclining function that allows the seatback to be folded toward the seat cushion along with sliding is added to maximize the expansion of the space.

On the other hand, sliding the seat cushion of the vehicle seat is called a walk-in function.In the case of a mixed vehicle, an SUV or an RV vehicle, the entrance door side seats located in the second or third row for convenience of getting in and out of the occupant in the rear seat A walk-in apparatus is provided.

However, recently, a walk-in device provided in a vehicle seat is configured to interlock with a reclining device, and FIGS. 1 to 3 show a conventional vehicle seat configured to interlock a walk-in device and a reclining device.

With reference to Figures 1 to 3 looks at the walk-in and reclining interlocking operation of a conventional vehicle seat. First, when the user operates the work-in lever (not shown) mounted on the seat back of the vehicle seat, the work-in operation lever 132 is rotated by a predetermined angle while the work-in operation cable 131 is pulled. In this state, when the arm plate 140 forming the skeletal structure of the seat back is rotated at an angle, the upper end of the vertical portion 133a of the work-in bracket 133 is pressed by the pressing protrusion 141 formed on the arm plate 140. Because the walk-in bracket 133 is rotated by a certain angle, when the walk-in bracket 133 is rotated by a certain angle, the walk-in cable 134 is pulled while the work-in locking lever for fixing between the seat rail and the seat ( By releasing 135, the seat is slidably moved in the front-rear direction of the vehicle.

However, when the arm plate 140 rotates at a predetermined angle, a stopper 133c protruding from the bracket 133 which is a workpiece rotated by the pressing protrusion 141 of the arm plate 140 is located at one side of the folding cam 115. In this case, the folding cam 115 rotates. Therefore, an excessive pressure load may be applied to the stopper 133c of the walk-in bracket 133, and for this purpose, there is a demand to increase the pressing force of the stopper 133c to twice the current.

In order to satisfy the above requirements, a method of simply increasing the strength of the stopper 133c of the work-in bracket 133 by doubling can be applied. However, when the material thickness or the material strength is doubled, the space is limited. There is a problem with the application.

Therefore, there is a need for a breakthrough improvement method that can minimize the increase in weight and the number of parts.

The present invention has been proposed to solve the above problems and to meet the necessity, and by forming a stopper of the walk-in bracket in a dual structure, the pressure resistance of the stop-in bracket of the work-in bracket is sufficiently improved while minimizing the increase in weight and the number of parts. It is an object of the present invention to provide a walk-in and folding device for a vehicle seat.

The walk-in and folding device for a vehicle seat according to the present invention for achieving the above object is made of a structure in which the arm plate on which the seatback is installed is rotatably installed on the recliner base, the recliner assembly for the reclining action of the seatback A walk-in and folding apparatus for a vehicle seat comprising a sey, a work-in means for interworking with the recliner assembly and a work-in action, and a folding means for performing a folding action of the seat back. Is a walk-in lever operated by the vehicle occupant, a walk-in operation cable for transmitting the operating force of the walk-in lever, a walk-in bracket that is rotatably installed on the recliner base, and is provided on the arm plate A pressurizing protrusion for pressing and rotating the work-in bracket according to the rotation of the arm plate, and the war A folding cam which rotates by hitting an in-bracket, a work-in cable whose one end is fixed to the work-in bracket, and receives the operating force of the work-in lever, and the work-in cable receives the operating force of the work-in lever from the work-in cable. And a walk-in lever bracket for performing locking and unlocking of the locking device of the track, wherein the walk-in bracket has a stopper having a rotation stop function when the pivot is pushed by the arm plate and has a dual structure. It is characterized by.

The stopper of the dual structure formed on the walk-in bracket preferably includes a first stopper that strikes the protrusion formed on the folding cam and a second stopper that strikes the outer end of the recliner base.

When the first stopper and the second stopper respectively collide with the protruding portion of the folding cam and the outer end of the recliner base, the first stopper and the second stopper may be simultaneously hit.

The second stopper is preferably formed to have a flat contact surface to be parallel with the inner surface of the outer end of the recliner base when it hits the outer end of the recliner base.

The walk-in bracket is provided between the second stopper and the inner side of the outer end of the recliner base so that the second stopper is parallel to the inner side of the outer end of the recliner base and prevents pinching after being hit. It is preferable to rotate so that a certain gap GAP exists.

According to the locking device for a vehicle seat rail as described above, by forming the stopper of the walk-in bracket in a dual structure, it is possible to sufficiently improve the stopper pressurization strength of the work-in bracket while minimizing the increase in weight and the number of parts.

1 is a view showing a walk-in and a folding device of a conventional vehicle seat.
Figure 2 is a view showing the operating state of the walk-in and folding device of a conventional vehicle seat.
Figure 3 is another view showing the operating state of the walk-in and folding device of a conventional vehicle seat.
Figure 4 is a view showing a state before the rotation of the walk-in bracket having a dual structure stopper applied to the walk-in and folding device of the vehicle seat according to an embodiment of the present invention.
Figure 5 is a view showing a state in which the walk-in bracket having a dual structure stopper applied to the walk-in and folding device of the vehicle seat according to an embodiment of the present invention.
FIG. 6 is an enlarged view of region “B” in FIG. 5;
FIG. 7 is an enlarged view of the area “B” of FIG. 5. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. In the following description of the present invention, detailed description of known related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured by the present invention. In addition, the thickness of the lines and the size of the constituent elements shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms used are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be based on the entire contents of the present specification.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a view showing a state before the walk-in bracket having a dual structure stopper applied to the walk-in and folding device of the vehicle seat according to an embodiment of the present invention, Figure 5 is for a vehicle according to an embodiment of the present invention FIG. 6 is a view illustrating a state in which a walk-in bracket having a dual structure stopper applied to the seat-in and the folding device is rotated, FIG. 6 is an enlarged view of an area “B” of FIG. 5, and FIG. Another enlarged view of the area B ″.

With reference to FIGS. 4 to 7, a configuration that is equally applicable to the present invention among the configurations disclosed in FIGS. 1 to 3 will be described with reference to FIGS. 1 to 3.

The walk-in and folding device for a vehicle seat according to an embodiment of the present invention has a structure in which the arm plate 140 on which the seatback is installed is rotatably installed on the recliner base 121, and the reclining for the reclining action of the seatback. A liner assembly, a walk-in means 130 interworking with the recliner assembly, and a folding-in means for performing a folding action of the seat back, and the recliner-assembly and work-in means. And the description of the specific configuration for the folding means is omitted because it may be unnecessarily obscure the subject matter of the present invention, this specific configuration can be easily obtained by those skilled in the art, may be formed in a variety of different structures little by little will be.

On the other hand, the walk-in means 130 is a walk-in lever (not shown) to be operated by the vehicle occupant, a work-in operation cable 131 for transmitting the operation force of the walk-in lever, and the recliner base 121 The press-in bracket 233 rotatably installed on the arm plate 140 and the arm plate 140 are provided with a pressurizing protrusion for pressing and rotating the work-in bracket 233 according to the rotation of the arm plate 140. 141, a folding cam 215 which is hit by the work-in bracket 233 to rotate, and a work-in cable 134 that is fixed to the work-in bracket 233 to receive the operating force of the work-in lever. And a walk-in lever bracket 135 which receives the operating force of the walk-in lever from the walk-in cable 134 and performs locking and unlocking of the locking device of the seat track.

Here, the walk-in bracket 233 has a stopper having a rotation stop function when the pivoting function of the arm plate 140 is rotated by a dual structure is formed in a dual structure, the stopper is the folding cam 215 And a first stopper 233b that strikes the protrusion 215a formed therein, and a second stopper 233c that strikes the outer end 121a of the recliner base 121.

Therefore, as shown in FIG. 4, the upper end of the vertical portion 233a of the bracket 233, which is the workpiece, is pressed in the direction of the arrow C by the pressing protrusion 141 of the arm plate 140, so that the bracket, which is the workpiece, is 233. When rotating in the direction of the arrow R, the first stopper 233b and the second stopper 233c of the work-in bracket 233 respectively perform the stopping action in the "A" region and the "B" region, respectively. When the stop action of the walk-in bracket 233 is made in two areas as described above, an excessive pressure load applied to the stopper of the walk-in bracket 233 can be reduced.

Meanwhile, the first stopper 233b and the second stopper 233c simultaneously collide with the protrusion 215a of the folding cam 215 and the outer end 121a of the recliner base 121, respectively. It is formed in approximately opposite positions so that it can be hit. As such, when the first stopper 233b and the second stopper 233c collide at the same time, an excessive pressure load applied to the stopper of the work bracket bracket 233 may be effectively and evenly distributed. The pressing force of the stopper of the in-bracket 233 can be increased by 2 times compared with the related art.

Meanwhile, when the second stopper 233c strikes the outer end 121a of the recliner base 121, the second stopper 233c may be parallel to the inner side surface 121aa of the outer end 121a of the recliner base 121. It has a flat contact surface 233ca to achieve this.

Therefore, when the second stopper 233c strikes the outer end 121a of the recliner base 121, as shown in FIG. 6, the flat contact surface 233ca of the second stopper 233c and the recle The inner surface 121aa of the outer end 121a of the liner base 121 is in parallel contact with each other with respect to the illustrated virtual line L, and when such parallel contact is made, the second stopper 233c and the recle The pinch between the outer end 121a of the liner base 121 can be prevented.

Meanwhile, the walk-in bracket 233 may be prevented from being pinched after the second stopper 233c collides in parallel with the inner surface 121aa of the outer end 121a of the recliner base 121. As shown in FIG. 7, there is a slight rotation such that a predetermined gap GAP exists between the second stopper 233c and the inner surface 121aa of the outer end 121a of the recliner base 121 (FIG. 4). It is preferably configured to rotate in a direction opposite to the direction of the arrow (R) shown in FIG.

Meanwhile, in FIGS. 1 to 3, reference numerals 102, 123, 125, 132, 133b, and 137, which are not described, refer to seat cushion frames, recliner shafts, stopper brackets, walk-in operation levers, horizontal parts, and elastic members. Denotes a reference numeral.

According to the walk-in and folding device for a vehicle seat as described above, by forming the stopper of the walk-in bracket in a dual structure, it is possible to sufficiently improve the stopper pressure resistance of the work-in bracket while minimizing the increase in weight and the number of parts. .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It is to be understood that the invention may be variously modified and changed.

130: walk-in means 140: arm plate
141: pressing projection 134: walk-in cable
215: folding cam 233: walk-in bracket
233a: vertical portion 233b: first stopper
233c: second stopper 233ca: flat contact surface

Claims (5)

The arm plate to which the seatback is installed is configured to be rotatably installed on the recliner base, a recliner assembly for reclining the seatback, and a work-in means for performing a walk-in operation in conjunction with the recliner assembly. In the walk-in and folding device of the vehicle seat comprising a folding means for performing the folding action of the seat back,
The walk-in means includes a walk-in lever operated by a vehicle occupant, a walk-in operation cable for transmitting a manipulation force of the walk-in lever, a walk-in bracket rotatably installed on the recliner base, and the arm plate. A pressurizing protrusion for pressing and rotating the work-in bracket according to the rotation of the arm plate, a folding cam for hitting and rotating the work-in bracket, and one end of the work-in bracket being fixed to the work-in lever. A walk-in cable receiving the operation force of the work-in cable, and a walk-in lever bracket for performing the locking and unlocking of the locking device of the seat track by receiving the operation force of the work-in lever from the work-in cable,
The walk-in bracket is a walk-in and folding device of a vehicle seat, characterized in that the stopper having a rotation stop function is formed in a dual structure when rotated by the pressing projection of the arm plate. The method according to claim 1,
The dual structure stopper formed on the walk-in bracket includes a first stopper that strikes a protrusion formed in the folding cam and a second stopper that strikes an outer end of the recliner base. And folding device. The method according to claim 2,
And the first stopper and the second stopper simultaneously bump into the projections of the folding cam and the outer ends of the recliner base, respectively. The method according to claim 3,
And wherein the second stopper is formed to have a flat contact surface to be parallel with an inner surface of the outer end of the recliner base when it hits the outer end of the recliner base. Folding device. The method of claim 4,
The walk-in bracket is provided between the second stopper and the inner side of the outer end of the recliner base so that the second stopper is parallel to the inner side of the outer end of the recliner base and prevents pinching after being hit. A walk-in and folding device for a vehicle seat, characterized in that it rotates so that a certain gap (GAP) exists.

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