JP2011148345A - Automobile seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automobile seat which has an active headrest effect that effectively reduces a clearance between the head part of an occupant and a headrest and further improves safety by enabling the headrest to absorb a large collision load, a large load, and by effectively supporting the head part of the occupant at the time of a collision accident of an automobile with a simple structure that is hardly accompanied by weight increase or a cost burden. <P>SOLUTION: A flat pad supporter 20 has a plurality of long, narrow, vertical pleats, which extend in the vertical direction at a part corresponding to a center pad portion at proper intervals in the right and left direction, which are bent in folded-ridge shapes on its surface, and which are sewn by the French seam with threads that are cut when a large load is applied. Then, a seat back pad 10 is integrated with the flat pad supporter 20 on a frame contact surface 11 by being integrally foamed from a forming resin liquid to the flat pad supporter 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an automobile seat, and more particularly, in the event of an automobile collision, for example, in the case of an automobile rear-end collision, the gap between the head of the occupant and the headrest is effectively reduced, and the occupant is provided with the headrest. The present invention relates to an automobile seat that can absorb a large impact load on the head of the vehicle, that is, a large load, can effectively support the head of the passenger, and provides an active headrest effect that further increases safety.

  In the event of a car crash, for example, when the car is rear-end collision, the occupant is pressed in the direction of sitting deeply into the seat back due to inertia, and the seat back is naturally bent to a small amount, and reclining Since the device also bends in a locked state, the headrest may move away from the head of the occupant and increase in distance, and the original function may not be performed sufficiently. Also, in the event of a car crash, the occupant is pressed against the seat back by rebounding with a seat belt or air bag, and the car hits the rear.

Various active headrest devices that can effectively reduce the gap between the occupant's head and headrest in the event of such a collision, absorb the collision load, i.e., impact energy, and further enhance safety Are known.
However, because they are complex mechanisms and structures, the weight of automobiles increases, fuel efficiency is adversely affected, and CO ₂ emissions until products can not be reduced compared to conventional headrests. However, due to the cost burden, it is difficult to disseminate it to any car.

Japanese Patent Laid-Open No. 10-181401 Japanese Patent Laid-Open No. 2009-286293

  The object of the present invention is to reduce the gap between the occupant's head and the headrest effectively in the event of an automobile collision accident with a simple structure and almost no increase in weight or cost. It is an object of the present invention to provide an automobile seat having an active headrest effect that can absorb a load, that is, a large load, can effectively support the head of the passenger, and further enhance safety.

  In the automobile seat of the present invention, the planar pad supporter extends in the vertical direction at an appropriate interval in the left-right direction at the portion corresponding to the center pad portion, and is folded into a fold mountain on the surface. A plurality of elongate vertical pleats bagged with thread that is cut at such time, and the seat back pad is integrally foamed from the foamable resin liquid to the planar pad supporter at the frame contact surface. It is integrated with the flat pad supporter.

In addition, the automobile seat of the present invention has a planar pad supporter formed from a number of vertical slits that are cut at appropriate intervals in the vertical direction with appropriate intervals in the horizontal direction at portions corresponding to the center pad portion. The seat back pad is integrated with the planar pad supporter at the frame contact surface by being integrally foamed from the foamable resin liquid to the planar pad supporter. The

  In the present invention, a plurality of elongated vertical folds in which a planar pad supporter is bag-sewn with a thread that is folded in a fold on the surface of the portion corresponding to the center pad portion of the seat back pad and cut with a large load in advance. Or cut a plurality of vertical slit rows in a portion corresponding to the center pad portion of the seat back pad, and is integrally foamed on the frame contact surface on the spring side of the seat back pad, When the foam is integrally foamed, it absorbs and impregnates the foam resin solution as the pad stock solution and becomes strong and forms the frame contact surface that is the back of the pad. Therefore, during normal seating, the solid pad supporter is durable and strong. In the event of a car crash while maintaining a stable state, the solid pad supporter is extended by a large collision load, that is, a heavy load. And the occupant is depressed by the seat back, effectively reducing the gap between the occupant's head and the headrest, and the headrest can absorb the large collision load, and the occupant's head As a result, the active headrest effect can be effectively provided, and the safety can be further enhanced. Further, the structure can be easily used in any vehicle with a simple structure with little increase in weight and cost.

FIG. 2 is a cross-sectional view showing a seat back pad used in a specific example of the automobile seat of the present invention that is used in a driver seat of a passenger car. It is the perspective view which showed the planar pad supporter used for the seat back pad of the driver seat. It is the cross-sectional view which showed the seat back pad of the state which the planar pad supporter extended at the time of the collision accident of the passenger car. It is the cross-sectional view which showed another seat back used for the driver's seat of the passenger car. It is a perspective view of another planar pad supporter used for the other seat back pad. It is the cross-sectional view which showed the other seat back pad of the state which the other planar pad supporter extended at the time of the collision accident of the passenger car.

  In the automobile seat of the present invention, a felt-like fabric called a pad supporter in a normal seat back is integrally foamed on the contact surface with the frame on the spring side of the seat back pad, and the pad supporter is integrally foamed. Sometimes it absorbs and impregnates a foaming resin liquid as a pad stock solution to form a strong frame contact surface and prevent deterioration of the frame contact surface due to friction between the seat back pad and the frame, Durability can be secured, and the strong pad supporter prevents the frame contact surface from being deformed, so pay attention to the strong pad supporter, and during normal seating, the strong pad supporter In the event of a car crash, while maintaining a strong and durable state, a large collision load, that is, a large load The pad is supported by the seat and the seat back is lowered, effectively reducing the gap between the passenger's head and the headrest, and applying the large impact load to the headrest. Absorbing, the headrest can effectively support the occupant's head, providing an active headrest effect that further enhances safety, and with a simple structure with little increase in weight and cost It is in a place where it can be spread to any car.

  In the automobile seat of the present invention, the planar pad supporter extends in the vertical direction at an appropriate interval in the left-right direction at the portion corresponding to the center pad portion, and is folded into a fold mountain on the surface. A plurality of elongate vertical pleats bagged with thread that is cut at such time, and the seat back pad is integrally foamed from the foamable resin liquid to the planar pad supporter at the frame contact surface. It is integrated with the flat pad supporter.

  In addition, the automobile seat of the present invention has a planar pad supporter formed from a number of vertical slits that are cut at appropriate intervals in the vertical direction with appropriate intervals in the horizontal direction at portions corresponding to the center pad portion. The seat back pad is integrated with the planar pad supporter at the frame contact surface by being integrally foamed from the foamable resin liquid to the planar pad supporter. The

Hereinafter, the automobile seat of the present invention will be described based on the specific examples specified and illustrated. FIGS. 1 to 3 are specific examples of the automobile seat of the present invention which is used for a driver seat of a passenger car. 1 shows a seat back pad 10 used for a seat back, and its driver seat is a seat cushion, a seat supported by the left and right reclining devices so that the seat cushion can be tilted forward and angle-adjusted. It is assembled from a back and a headrest that is removably attached to the seat back, and is mounted on the passenger car floor in a front-rear adjustable manner by a seat truck.
The seat cushion is assembled by attaching the seat cushion pad to the seat cushion cushion frame, and then covering the seat cushion cushion cover with the seat cushion cushion cover. On the other hand, the seat back is assembled with the seat back pad 10 on the seat back frame, and the seat back cover is put on the seat back frame, and the seat back cover is fixed to the seat back frame. Assembled.

The seat back pad 10 uses a foaming resin liquid as a pad stock solution, and includes a center pad portion 12, left and right side pad portions 13, 14, a top pad return (not shown), and a bottom pad return. (Not shown) and foam-molded into a shape consisting of left and right side pad bars 15 and 16.
In this foam molding, the seat back pad 10 is integrally foamed from the foamable resin liquid to the flat pad supporter 20 and is flat at the pad back surface 11 on the spring side, that is, the contact surface 11 with the frame. It is integrated with the pad supporter 20.

  More specifically, in the seat back pad 10, the planar pad supporter at the frame contact surface 11 is integrally foamed from the foamable resin liquid to the planar pad supporter 20. 20, and the frame contact surface 11, that is, the pad back surface 11 is strengthened by the flat pad supporter 20, and the deterioration of the pad back surface 11 due to friction between the pad and the frame is flat. It is prevented by the pad supporter 20, long-term durability is ensured, and deformation of the pad back surface 11 can also be prevented.

  The flat pad supporter 20 uses a felt-like cloth having a thickness of about 2 mm to 3 mm, and an appropriate distance in the left-right direction is provided in a portion 23 corresponding to the center pad portion 12 of the seat back pad 10. A plurality of elongate longitudinal folds 24 that are laid down and extended from end to end, folded into a fold on the surface 21 and bagged with a thread 27 that is cut when a large impact load, i.e., a heavy load is applied, 25, 26. In this case, the plurality of elongate vertical folds 24, 25, and 26 were bag-sewn with the attached thread 27.

  Therefore, in the seat back pad 10, the planar pad supporter 20 absorbs and impregnates the foaming resin liquid as the pad stock solution at the time of integral foaming to form a strong pad back surface 11, and the pad and frame Deterioration of the pad back surface 11 due to friction is prevented by the strong pad supporter 20, long-term durability is ensured by the strong pad supporter 20, and furthermore, the pad is supported by the strong pad supporter 20 The back surface 11 is also prevented from being deformed, and during normal seating, the solid pad supporter 20 remains durable and strong. However, when the passenger car causes a collision accident, that is, when the passenger car collides. When a large impact load is applied, that is, when a large load is applied, the planar pad supporter 2 Each of the plurality of elongate longitudinal folds 24, 25, 26 of each of the plurality of elongate vertical folds 24, 25, 26 is cut by the thread 27, and the flat pad supporter 20 is stretched as shown in FIG. The seat back will sink, effectively reducing the gap between the occupant's head and the headrest, and the headrest can absorb the large impact load, effectively An active headrest effect that can be supported and further enhances safety is brought about. In addition, the simple structure is hardly accompanied by an increase in weight and cost, and the effect can be spread to any automobile.

4 to 6 show another seat back pad 30 used for the seat back in the embodiment of the automobile seat of the present invention utilized for the driver seat of the passenger car. The seat back pad 30 uses a foaming resin solution as a pad stock solution, and includes a center pad portion 32, left and right side pad portions 33, 34, a top pad return (not shown), and a bottom pad return. (Not shown) and foam-molded into a shape consisting of left and right side pad bars 35, 36.
In this foam molding, the seat back pad 30 is integrally foamed from the foamable resin liquid to another flat pad supporter 40 and is formed on the pad side 31 on the spring side, that is, the contact surface 31 with the frame. It is integrated with the planar pad supporter 40.

  The seat back pad 30 is integrated with the planar pad supporter 40 at the frame contact surface 31 by being foamed integrally with the planar pad supporter 40 from the foamable resin liquid, The frame contact surface 31, that is, the pad back surface 31 is strengthened by the planar pad supporter 40, and deterioration of the pad back surface 31 due to friction between the pad and the frame is prevented by the planar pad supporter 40. In addition, long-lasting durability is ensured, and the back surface 31 of the pad can be prevented from being deformed.

  The flat pad supporter 40 uses a felt-like cloth having a thickness of about 2 mm to 3 mm, and an appropriate distance in the left-right direction is provided in a portion 43 corresponding to the center pad portion 32 of the seat back pad 30. A portion corresponding to the center pad portion 32 of the seat back pad 30 and a plurality of longitudinal slit rows 44, 45, 46 composed of a large number of longitudinal slits 47 cut at appropriate intervals in the vertical direction. 43, a plurality of horizontal slit rows 48, 49 each including a plurality of horizontal slits 50 cut in the vertical direction between the plurality of vertical slit rows 44, 45, 46 at appropriate intervals.

  Therefore, in the seat back pad 30, the flat pad supporter 40 absorbs and impregnates the foaming resin liquid as the pad stock solution at the time of integral foaming, and the deterioration of the pad back surface 31 is the strong pad supporter 40. The durable pad supporter 40 ensures long-lasting durability, and further, the strong pad supporter 40 prevents the pad back surface 31 from being deformed. The pad supporter 40 continues to be durable and strong, but when the passenger car has a collision accident, that is, when a heavy load is applied, the planar pad supporter 40 has a large number of vertical slits 47 and The flat pad supporter 40 was torn by the horizontal slit 50, as shown in FIG. In the left and right direction and the vertical direction, the occupant sinks due to the seat back, effectively reducing the gap between the occupant's head and the headrest, It can absorb the large impact load, effectively support the passenger's head and enhance the safety, and has an active headrest effect. In addition, it has a simple structure with almost no increase in weight and cost. The effect will be disseminated to any car.

  As will be apparent from the specific embodiments of the present invention described above with reference to the drawings, for those of ordinary skill in the art to which the present invention pertains, It is easily embodied in another embodiment that derives from the nature and the nature of the invention and is objectively recognized as having them inherent. Of course, the content of this invention corresponds to the problem of the invention (be recommend with) and is essential for the establishment of the invention.

  As can be understood from the above, the automobile seat of the present invention has a planar pad supporter that extends in the vertical direction at an appropriate interval in the left-right direction at the portion corresponding to the center pad portion, and has a fold on the surface. Featuring a plurality of elongate vertical folds that are folded and sewed with a thread that is cut when subjected to heavy loads, and a seat back pad that foams integrally from a foam resin to its planar pad supporter As a result, it is integrated with the flat pad supporter at the frame contact surface. Therefore, in the automobile seat of the present invention, the flat pad supporter is impregnated with the foaming resin liquid as a pad stock solution when the integral foaming is performed. And the frame contact surface, which is the back side of the seat back pad, is formed to be strong. Although the porter continues to be durable and strong, in the event of a passenger car crash, the strong pad supporter generates a large collision load, that is, the heavy load causes elongation and the occupant sinks due to the seat back. The space between the head of the passenger and the headrest is effectively reduced, the headrest can absorb the large collision load, and the head of the passenger can be effectively supported to further enhance the safety. It has an active headrest effect and can be used in any vehicle with a simple structure with little increase in weight and cost. As a result, it is very useful and practical for vehicles.

DESCRIPTION OF SYMBOLS 10 Seat back frame 11 Pad back surface / frame contact surface 12 Center pad part 13 Left side pad part 14 Right side pad part 15 Left side pad return 16 Right side pad return 20 Planar pad・ Supporter 21 Front 22 Rear 23 Corresponding to the center pad portion 24 Elongated vertical fold 25 Elongated vertical fold 26 Elongated vertical fold 27 Installation thread 30 Seat back pad 31 Pad back surface / frame contact surface 32 Center pad portion 33 Left Side pad portion 34 Right side pad portion 35 Left side pad return 36 Right side pad return 40 Planar pad supporter 41 Front surface 42 Rear surface 43 Portion corresponding to center pad portion 44 Vertical slit row 45 Vertical slit row 4 Vertical slit matrix 47 longitudinal slit 48 transverse slit matrix 49 horizontal slit matrix 50 transverse slits

Claims (3)

  Thread that flat pad supporter extends in the vertical direction at an appropriate interval in the left-right direction at the part corresponding to the center pad part, is folded into a fold on the surface, and is cut when a heavy load is applied The seat back pad is integrally foamed from the foamable resin liquid to the planar pad supporter by the frame contact surface to the planar pad supporter. Automobile seats to be integrated.   The planar pad supporter has a plurality of vertical slit rows composed of a number of vertical slits cut at appropriate intervals in the vertical direction with appropriate intervals in the left-right direction at the portion corresponding to the center pad portion, An automobile seat in which the seat back pad is integrally foamed from the foaming resin liquid to the planar pad supporter by integrally foaming to the planar pad supporter at the frame contact surface.   The automobile seat according to claim 1, wherein the planar pad supporter includes a plurality of horizontal slit rows formed of a plurality of horizontal slits cut at an appropriate interval in the vertical direction between the plurality of vertical slit rows.

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