JP6756830B2 - Vehicle seat - Google Patents

Description

The present invention relates to a vehicle seat that can slide back and forth, and in particular, a slide walk-in mechanism or a slide walk-in mechanism that moves the seat back and forth to get into the rear seat, or moves the seat back and forth and tilts it forward to secure a passage. The present invention relates to a vehicle seat having a tumble walk-in mechanism and a bench type vehicle seat that can slide back and forth.

As described in Patent Document 1, the conventional vehicle seat slide device includes a fixed rail fixed to the floor and a movable rail in which the seat can be fixed to the fixed rail while being able to move forward and backward. It has a configuration that allows the seat to move forward and backward via a pair of left and right slide rails, respectively, so that the vehicle seat can be adjusted in the front-rear direction along the slide rails. There is.

Further, Patent Document 2 describes an automobile seat, and the summary thereof states that "the tire house 21 is inside so as to avoid the tire house 21 on the body floor surface 20 of the luggage compartment in which the tire house 21 bulges inward from the side surface. A monoguide rail 1 that bends in the direction of It is supported by the roller unit 3, and a stopper mechanism 4 is attached to at least one of the front and rear roller units 3 so that the seat cushion 30 can be slidable and can be positioned along the mono guide rail 1. " ing.

Further, in Patent Document 3, in the summary column, "A protruding wall portion 1 projecting in the ceiling direction and extending in the front-rear direction along the traveling direction of the vehicle is provided on the indoor floor surface, and the left side of the protruding wall portion 1 is provided. Slide rails 2 extending in the front-rear direction are provided on the surface and the right side surface, and a plurality of vehicle seats SL and SR are provided in the room, respectively, of the slide rails 2 provided on the protruding wall portion 1. Each of the vehicle seats is connected to the slide rail 2 by a connecting member 6 provided on the vehicle seat, and can be reciprocated in the front-rear direction along the slide rail 2 and the connecting member 6 It is supported by cantilever only. "

Japanese Unexamined Patent Publication No. 11-115562 Japanese Unexamined Patent Publication No. 11-11196 Japanese Unexamined Patent Publication No. 2012-171498

The configuration in which the seat can be moved back and forth using a pair of left and right slide rails disclosed in Patent Document 1 allows the seat to be smoothly moved in the front-back direction.

However, in the configuration disclosed in Patent Document 1, since a pair of left and right slide rails are used, the number of parts constituting the slide mechanism is large, the man-hours for assembling are increased, and the weight of the vehicle body is reduced. It is a neck.

On the other hand, Patent Document 2 describes a configuration in which one rail is used and a monoguide rail is used for the rail. However, since only one rail supports the back-and-forth movement of the seat, the seat is supported. When the load is biased in the left-right direction, there is no structure for positively preventing the seat from tilting to the right or left, and the seat may tilt.

Further, in the configuration described in Patent Document 3, since the slide rail is provided in the center across the front and rear seats, it becomes difficult to transfer from the right seat to the left seat or vice versa in the vehicle. .. In addition, the left and right seats will be supported against the slide rails in a structure similar to a cantilever, so that the seats are not tilted when the passenger is seated. It is necessary to give rigidity to the supporting structure, which may increase the weight of the entire seat.

The present invention solves the above-mentioned problems of the prior art, and in a vehicle seat having a slide walk-in mechanism or a tumble walk-in mechanism, the slide mechanism of the seat is simplified to reduce the weight of the entire seat and to have high rigidity. Provided is a vehicle seat that does not cause the seat to tilt even when an eccentric load is applied to the seat.

Further, the present invention solves the above-mentioned problems of the prior art, simplifies the slide mechanism to reduce the weight of the entire seat, and has high rigidity so that the seat can be tilted even when an eccentric load is applied to the seat. Provide a vehicle seat that does not generate.

In order to solve the above problems, the present invention has a seat cushion for a vehicle, a seat cushion having a seat cushion side frame and a cushion covering the surface of the seat cushion side frame, and a seat back side frame on which a passenger sits. A seat back that has a cushion that covers the surface of the seat back side frame and allows the passenger seated on the seat cushion to rest on the back, and a movable rail and vehicle that are equipped with the seat cushion and can move in the front-rear direction of the seat cushion. A set of slide rail units having a fixed rail fixed to the side of the floor surface to guide the movable rail, and a set of slide rail units near the tip of the fixed rail are mounted to mount the fixed rail. A support mechanism that supports a part of the load of the occupant seated on the seat cushion at a position facing the leg bracket fixed to the floor side of the vehicle and the part supported by the movable rail in the width direction of the seat cushion side frame. As a result, a bracket having an elongated hole formed along the moving direction of the seat cushion side frame, a pin engaged with the elongated hole formed in the bracket, and a holding plate for holding the pin are provided, and a set of slide rail units is provided. The movable rail supports the seat cushion side frame on the side closer to the vehicle seat next to the seat cushion than the central part of the seat cushion , and the leg bracket is a set of slide rail units with the seat back tilted toward the seat cushion. By flipping up the seat cushion with the leg bracket as the center of rotation while the cushion is advanced to the forward end, it is on the opposite side of the vehicle seat next to the set of slide rail units and at the rear of the seat cushion. The floor of the vehicle in the area through which the occupants pass to sit in a seat is formed flat .

Further, in order to solve the above problems, in the present invention, the vehicle seat has a seat cushion side frame and a cushion covering the surface of the seat cushion side frame, and a seat cushion on which the passenger sits and a seat back. a seat back occupant seated on the seat cushion and a cushion covering the side frame and the surface of the seat back side frame leans back, tower mount to the longitudinal direction movable in the movable rails of the seat cushion to the seat cushion and the slide rail unit pair, a pair of slide rail unit mounted to the fixed rail near the tip portion of the stationary rail vehicle having a fixed rail and to guide the is the movable rail fixed on the side of the floor of the vehicle As a support mechanism part that supports a part of the load of the passenger seated on the seat cushion at the part facing the leg bracket fixed to the floor surface side and the part supported by the movable rail in the width direction of the seat cushion side frame. The movable rail of one set of slide rail units is equipped with a roller that rotates in the front-rear direction in contact with the floor surface of the vehicle, and the movable rail of the seat cushion is closer to the vehicle seat next to the seat cushion than the central part of the seat cushion. Supporting the side frame, the leg bracket flips up the seat cushion with the leg bracket as the center of rotation with the seat back tilted toward the seat cushion and the seat cushion advanced to the forward end with a set of slide rail units. it allows a set of a vehicle floor in the region through which the passenger for relative sliding rail unit and vehicle seat next seat a side opposite seated in the seat at the rear of the seat cushion, formed flat did.

Further, in order to solve the above-mentioned problems, in the present invention, the vehicle seat has a seat cushion side frame and a cushion covering the surface of the seat cushion side frame, and a seat cushion on which the passenger sits and a seat back. Side frame and seat back A seat back that has a cushion that covers the surface of the side frame and allows the passenger seated on the seat cushion to lean back, and a movable rail that is equipped with the seat cushion and can move in the front-rear direction of the seat cushion. A set of slide rail units having a fixed rail fixed to the floor side of the vehicle and guiding the movable rail, and a set of slide rail units near the tip of the fixed rail are mounted on the fixed rail of the vehicle. As a support mechanism part that supports a part of the load of the passenger seated on the seat cushion at the part facing the leg bracket fixed to the floor side and the part supported by the movable rail in the width direction of the seat cushion side frame. It is equipped with a plate that slides in the front-rear direction in contact with the floor of the vehicle, and the movable rail of one set of slide rail units is closer to the vehicle seat next to the seat cushion than the central part of the seat cushion. By tilting the seat back toward the seat cushion and advancing the seat cushion to the forward end with a set of slide rail units, the leg bracket is flipped up with the leg bracket as the center of rotation. The floor surface of the vehicle in the area where the occupant passes to sit on the seat behind the seat cushion, which is opposite to the vehicle seat next to the set of slide rail units, is formed flat .

According to the present invention, in a vehicle seat having a slide walk-in mechanism or a tumble walk-in mechanism, the slide mechanism can be simplified and the weight of the entire seat can be reduced. Further, even if the slide mechanism is simplified, it has become possible to provide a vehicle seat having high rigidity and which does not cause the seat to tilt even when an eccentric load is applied to the seat.

It is a perspective view which shows the appearance of the vehicle seat which concerns on Example 1 of this invention. It is a perspective view which shows the appearance of the structure of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 1 of this invention. It is a front view of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 1 of this invention. FIG. 5 is a perspective view of a vehicle seat having a slide walk-in mechanism according to a first embodiment of the present invention, in which the seat is advanced along a slide rail and viewed from the rear. It is a perspective view which shows the appearance of the structure of the whole frame which removed the cushion part of the vehicle seat which has the tumble walk-in mechanism which concerns on the modification of Example 1 of this invention. A perspective view of a vehicle seat having a tumble walk-in mechanism according to a modification of the first embodiment of the present invention, in which the seat is flipped up with the seat advanced along a slide rail. is there. It is a perspective view which shows the appearance of the structure of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 2 of this invention. It is a front view of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 2 of this invention. It is a perspective view which shows the appearance of the structure of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 3 of this invention. It is a front view of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 3 of this invention. It is a perspective view which shows the appearance of the structure of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 4 of this invention. It is a front view of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 4 of this invention. It is a perspective view which shows the appearance of the structure of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 5 of this invention. It is a front view of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 5 of this invention. It is a perspective view which shows the appearance of the structure of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 6 of this invention. It is a front view of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 6 of this invention. It is a perspective view which shows the appearance of the structure of the whole frame which removed the cushion part of the vehicle seat which has the slide walk-in mechanism which concerns on Example 7 of this invention. It is a perspective view of the whole frame of the vehicle seat which concerns on Example 8 of this invention. 8 is a cross-sectional view taken along the line AA in FIG. 18 of the entire frame of Example 8 of the present invention. It is a perspective view of the whole frame of the vehicle seat which concerns on Example 9 of this invention. It is sectional drawing of BB in FIG. 20 of the whole frame of Example 9 of this invention. It is a perspective view of the bench seat frame structure of the vehicle seat (bench seat) which concerns on Example 10 of this invention. FIG. 22 is a cross-sectional view taken along the line CC in FIG. 22 of the bench seat frame structure according to the tenth embodiment of the present invention. It is a perspective view of the bench seat frame structure of the vehicle seat (bench seat) which concerns on Example 11 of this invention. It is a front view around the slide rail of the bench seat frame structure which concerns on Example 11 of this invention.

The present invention simplifies the slide mechanism by deleting the slide rail unit on the side closer to the door among the slide rail units conventionally provided in pairs on the left and right in the vehicle seat having the slide walk-in mechanism or the tumble walk-in mechanism. Therefore, the weight of the entire seat is reduced.

In addition, by adopting an auxiliary mechanism instead of the deleted slide rail, the seat has high rigidity so that the seat does not tilt even if an eccentric load is applied to the seat.

Furthermore, when the seat is moved forward with such a configuration, or when the seat is moved forward and flipped up, there are no obstacles on the floor surface on the side where the passenger gets on and off, and the passenger gets on and off. It is designed to be done smoothly.

The present invention simplifies the sliding mechanism of the vehicle seat by adopting a configuration in which the sliding mechanism of the vehicle seat is suppressed from the occurrence of tilting of the seat by one rail and an auxiliary mechanism having a relatively simple configuration on the left and right of the rail. It is lighter.

In all the drawings for explaining the present embodiment, those having the same function shall be designated by the same reference numerals, and the repeated description thereof will be omitted in principle. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

However, the present invention is not construed as being limited to the description of the embodiments shown below. It is easily understood by those skilled in the art that a specific configuration thereof can be changed without departing from the idea or purpose of the present invention.
Hereinafter, examples of the present invention will be described with reference to the drawings.

A first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
FIG. 1 is a perspective view showing the appearance of a vehicle seat (seat) 1 having a slide walk-in mechanism according to the present embodiment. The vehicle seat 1 according to the present embodiment includes a seat cushion 2 on which the passenger sits, a seat back 3 on which the seated passenger leans back, and a headrest 4.

FIG. 2 shows the configuration of the entire frame 100 from which the cushion portion of the vehicle seat (seat) 1 having the slide walk-in mechanism shown in FIG. 1 is removed. The overall frame 100 includes a seat cushion side frame 120 on the side of the seat cushion 2 and a seat back side frame 110 on the side of the seat back 3.

The seat back side frame 110 includes a frame 101 forming the outer circumference of the seat back 3 and a connection frame 103 connecting both sides of the frame 101, and the frame 101 is a seat cushion side frame 120 near both end portions. It is rotatably engaged with the rear connection frame 111.

The seat cushion side frame 120 has a side frame 112 whose rear end portion is connected to the rear connection frame 111, and a rear connection frame whose one end is connected to the front end portion of the side frame 112 and the other end portion is connected via a joint 116. It includes a seat cushion pipe 113 connected to 111, a plate 114 on which the side frame 112 is placed, and a slide rail unit 1150 that supports the plate 114 and can slide back and forth.

FIG. 3 shows a front view of the entire frame 100.
The slide rail unit 1150 includes a fixed rail (lower rail) 115 fixed to the floor (not shown) of the vehicle, a movable rail 117 slidable along the fixed rail 115, and a drive source (not shown). The ball screw 118 is rotationally driven by the rail, and the nut portion 119 fixed to the movable rail 117 and screwed with the ball screw is provided. By rotationally driving the ball screw 118 with a drive source (not shown), the movable rail 117 to which the nut portion 119 is fixed moves back and forth along the fixed rail 115.

A plate 114 to which the side frame 112 is fixed is attached to the upper surface of the movable rail 117 (the surface opposite to the floor of the vehicle), and the side frame 112 moves back and forth as the movable rail 117 moves back and forth. To do.

In the front view shown in FIG. 3, the side frame 112 is provided near the left end of the entire frame 100, but the place where the side frame 112 is attached to the rear connection frame 111 and the seat cushion pipe 113 is The portion on the left side of the central portion of the entire frame 100 (the side closer to the vehicle seat of the adjacent seat) may be used. That is, the slide rail unit 1150 supports the entire frame 100 at a portion on the left side (closer to the vehicle seat of the adjacent seat) than the central portion of the entire frame 100.

In the configurations shown in FIGS. 2 and 3, the slide rail unit 1150 is arranged on the left side of the entire frame 100 (on the right side of the passenger seated on the seat 1) and on the right side of the entire frame 100 (seat on the seat 1). The case where there is a vehicle door (not shown) on the left side of the passenger) is shown. That is, the slide rail unit 1150 is installed on the side opposite to the door (the side far from the door, the side closer to the next seat) with respect to the entire frame 100. However, the slide rail unit 1150 may be installed on the side farther from the door in the central portion of the entire frame 100 or in the vicinity thereof (the side closer to the next seat or the side closer to the central portion of the vehicle).

The slide rail unit 1150 is equipped with a lock mechanism for locking the front-back movement of the movable rail 117, but the lock mechanism is not shown in the configurations shown in FIGS. 2 and 3.

The seat 1 provided with the slide walk-in mechanism having the configuration as shown in FIGS. When applied to the side seat, when the passenger gets into the back seat, the seat 1 provided with the slide walk-in mechanism on the passenger side in the front row is moved forward to secure a space for getting into the back seat.

The state at that time is shown in FIG. FIG. 4 shows the seat 1 in the state shown in FIG. 1 in which the cushion portion is attached to the entire frame 100. By moving the seat 1 forward along the slide rail unit 1150, a region S1 having no protrusions or recesses is secured on the floor surface on the door side (left side of the seat 1 in FIG. 4) at the rear of the seat 1. Passengers boarding the rear seats can pass through the area S1.

In the configurations shown in FIGS. 2 to 4, the case where the fixed rail 115 of the slide rail unit 1150 is fixed on the floor of a vehicle (not shown) has been described, but the fixed rail 115 is fixed under the floor of the vehicle. (A configuration in which the fixed rail 115 is embedded in the floor of the vehicle) may be used.

In such a configuration, there is only the slide rail unit 1150 in the vicinity of the area S1 (the side behind the seat back 3 and close to the door in FIG. 4) through which the passengers boarding the rear seats can pass. Moreover, since the slide rail unit 1150 is separated from the area S1 through which the passengers boarding the rear seats can pass, there is nothing in the area S1 that interferes with the feet of the passengers. As a result, the passenger who gets into the rear seat can get on and off safely and smoothly without any protrusions or recesses that hinder his / her feet.

For the passenger seat side seat in the front row of a conventional two-door type passenger car, two rail units having the same length on the left and right were used as guides for moving the seat back and forth. In such a conventional structure, a passenger who gets into the back seat steps on the rail near the door, hits the foot (shoe) against the rail, or puts the heel part of the shoe in the groove of the rail. I was moving to the back seat side while slacking. As a result, the rail on the side close to the door may be deformed or foreign matter (dust) may be caught in the rail, which may hinder the smooth movement of the seat in the front-rear direction.

On the other hand, in the seat 1 according to the present embodiment, the slide rail unit 1150 for moving the seat 1 back and forth is installed at a place away from the area S1 through which the passengers boarding the rear seats can pass. .. As a result, the slide rail unit 1150 is less likely to be stepped on by a passenger boarding the rear seat, hit by a foot (shoe), or pinch the heel portion of the shoe in the groove of the rail. As a result, there is less possibility that the rail will be deformed or foreign matter (dust) will be caught in the rail, which will hinder the smooth movement of the seat 1 in the front-rear direction.

Further, in the seat 1 according to the present embodiment, when the passenger moves the seat 1 forward to get into the rear seat, the passenger who gets into the rear seat can pass through the area S1 where the passenger who gets into the rear seat can pass. You can get on and off safely and smoothly without any obstacles or recesses at your feet.

According to this embodiment, the slide mechanism can be simplified to reduce the weight of the entire seat. Further, even if the slide mechanism is simplified, it has become possible to provide a vehicle seat having high rigidity and which does not cause the seat to tilt even when an eccentric load is applied to the seat.

[Modification example]
As a modification of the first embodiment, the present invention is applied to a seat having a tumble walk-in mechanism having a structure in which the seat 1 is moved forward in a state where the seat back 3 is tilted toward the seat cushion 2 and the seat 1 is flipped up. The case will be described with reference to FIGS. 5 and 6.

FIG. 5 shows the configuration of the entire frame 400 from which the cushion portion is removed from the vehicle seat in this modified example. The overall frame 400 includes a seat cushion side frame 120 on the seat cushion 2 side and a seat back side frame 110 on the seat back 3 side, as in the configuration described in the first embodiment.

The configuration shown in FIG. 5 differs from the configuration described with reference to FIG. 2 in the first embodiment in that the slide rail unit 1150 is provided with a leg bracket 405 for flipping up the seat 1 together with the slide rail unit 1150. The vicinity of the tip portion (advance end of the movable rail 117) is a point attached to the leg bracket 405.

FIG. 6 shows a state in which the seat back 3 is tilted toward the seat cushion 2 by using the tumble walk-in mechanism, the seat 1 is moved forward, and the seat 1 is flipped up together with the slide rail unit 1150. ing.

As shown in FIG. 6, the leg bracket 405 fixes the fixing bracket 402 fixed to the floor of the vehicle (not shown), the pivot pin 403 to which the fixing bracket is attached, and the vicinity of the tip portion of the slide rail unit 1150. It is configured with a pivot bracket 401 that is rotatable around the pivot pin 403. The 410 is a lock unit, which is a lock unit that fixes the slide rail unit 1150 to a lock receiving portion attached to the floor side of a vehicle (not shown) when the flipped up seat 1 is returned to the original state. It is fixed at 1150.

Also in the configurations shown in FIGS. 5 and 6, the slide rail unit 1150 may be installed on the side farther from the door at or near the center of the entire frame 400 (the side closer to the next seat). ..

The slide rail unit 1150 is equipped with a lock mechanism that locks the front-back movement of the movable rail 117, but in the configurations shown in FIGS. 5 and 6, the lock mechanism is not shown.

In such a configuration, as shown in FIG. 6, the area S2 (FIG. 4) through which passengers boarding the rear seat can pass while the seat 1 is flipped up together with the slide rail unit 1150 by the tumble walk-in mechanism. There is only a slide rail unit 1150 in the vicinity of the rear front side of the seat back 3. Moreover, since the slide rail unit 1150 is attached to a place away from the area S2 where the passengers who board the rear seats can pass, they board the area S2 where the passengers who board the rear seats can pass. There is nothing in the way at the feet of the person. As a result, the passenger who gets into the rear seat can get on and off safely and smoothly without any protrusions or recesses that hinder his / her feet.

A second embodiment of the present invention will be described with reference to FIGS. 7 and 8.
FIG. 7 shows the configuration of the entire frame 600 from which the cushion portion of the vehicle seat in this embodiment is removed. The overall frame 600 includes a seat cushion side frame 130 on the seat cushion 2 side and a seat back side frame 110 on the seat back 3 side, as in the configuration described in the first embodiment.

The configuration shown in FIG. 7 differs from the configuration described with reference to FIG. 2 in the first embodiment in that the diagonal member member 127 is provided on the seat cushion side frame 130 on the seat cushion 2 side. .. Both ends of the oblique member member 127 are fixed to the seat cushion pipe 123 and the rear connecting frame 121 by welding, respectively. The configuration of the joint 126 connecting the side frame 122 and the rear connecting frame 121 and the seat cushion pipe 123 is the same as the configuration of the side frame 112 and the joint 116 described in the first embodiment.

FIG. 8 shows a front view of the entire frame 600 described with reference to FIG. Similar to the case of the first embodiment described with reference to FIG. 3, the side frame 122 is fixed to the movable rail 117 of the slide rail unit 1150 via the plate 114, and can move back and forth along the fixed rail 115. It has a structure.

The slide rail unit 1150 is equipped with a lock mechanism that locks the front-back movement of the movable rail 117, but the lock mechanism is not shown in the configurations shown in FIGS. 7 and 8.

In this embodiment, the rigidity of the seat cushion side frame 130 can be increased by providing the seat cushion side frame 130 with the diagonal member member 127. As a result, even if the diameter of the rear connection frame 121 or the seat cushion pipe 123 is reduced to weaken the rigidity as compared with the case of the first embodiment, the seat cushion 2 is deformed when the passenger is seated on the seat cushion 2. (Inclination to the side not supported by the slide rail unit 1150) can be suppressed, and the same effect as in the case of the first embodiment can be obtained without impairing the comfort of the passenger.

That is, also in this embodiment, the seat 1 provided with the slide walk-in mechanism having the configuration as shown in FIGS. 7 and 8 is the seat on the passenger side in the front row of the two-door type passenger car with two front and rear rows or three rows. When applied to the door-side seats in the center row of seats, the slide rail unit 1150 for moving the seat 1 back and forth is separated from the area S1 (see FIG. 4) through which passengers boarding the rear seats can pass. It is installed in the same place. As a result, the slide rail unit 1150 is less likely to be stepped on by a passenger boarding the rear seat, hit by a foot (shoe), or pinch the heel portion of the shoe in the groove of the rail. As a result, there is less possibility that the rail will be deformed or foreign matter (dust) will be caught in the rail, which will hinder the smooth movement of the seat 1 in the front-rear direction.

Further, in the seat 1 according to the present embodiment, when the passenger moves the seat 1 forward in order to get into the rear seat, the passenger who gets into the rear seat can pass through the area S1 where the passenger gets into the rear seat. It is possible to get on and off safely and smoothly without any protrusions or recesses that may interfere with the person's feet.

Further, also in this embodiment, as in the modified example of the first embodiment, it can be applied to a seat having a tumble walk-in mechanism.

According to this embodiment, the slide mechanism can be simplified to reduce the weight of the entire seat. Further, even if the slide mechanism is simplified, it has become possible to provide a vehicle seat having high rigidity and which does not cause the seat to tilt even when an eccentric load is applied to the seat.

FIG. 9 shows the configuration of the entire frame 800 from which the cushion portion of the vehicle seat according to the third embodiment has been removed, and FIG. 10 shows a front view thereof.

In the first and second embodiments, the seat cushion side frame 120 or 130 is supported by the slide rail unit 1150 as a cantilever structure, and the seat cushion side frame 120 or 130 is provided with rigidity.

On the other hand, in this embodiment, as shown in FIG. 9, a guide unit 810 is provided on the side of the seat cushion side frame 120 facing the slide rail unit 1150 of the seat cushion pipe 113, and joins the seat cushion side frame 120. A part of the load is supported by the guide unit 810.

In the configuration of the entire frame 800 shown in FIG. 9, the basic configurations of the seat cushion side frame 120 and the seat back side frame 110 excluding the guide unit 810 are the configurations of the entire frame 100 described with reference to FIG. 2 in the first embodiment. Is the same as.

The guide unit 810 has a fixing bracket 804 fixed to the floor of the vehicle (not shown), a pin 803 fixed to the fixing bracket 804, and a slotted hole 802 to which the pin 803 engages. It is configured to include a bracket 801 fixed to the pipe 113. The pin 803 may be formed of a rod-shaped member, or may have a structure in which a portion engaging with the elongated hole 802 formed in the bracket 801 is formed of a rotatable roller.

In the configuration provided with the guide unit 810 having such a structure, when the seat cushion side frame 120 moves back and forth along the slide rail unit 1150, the elongated hole 802 of the bracket 801 also moves back and forth along the pin 803. At this time, the bracket 801 fixed to the seat cushion pipe 113 supports a part of the load applied to the seat cushion side frame 120 by the fixing bracket 804 via the pin 803 engaged with the elongated hole 802.

The slide rail unit 1150 is equipped with a lock mechanism that locks the front-back movement of the movable rail 117, but the lock mechanism is not shown in the configurations shown in FIGS. 9 and 10.

With such a configuration, the load applied to the seat cushion side frame 120 when the passenger sits on the seat cushion 2 can be distributed and borne by the slide rail unit 1150 side and the guide unit 810. .. That is, according to this embodiment, the cantilever structure as shown in FIGS. 2 and 5 in Examples 1 and 2 can be changed to a double-sided beam structure, and in the case of Examples 1 and 2. The deformation of the seat cushion side frame 120 can be suppressed even with a configuration having a relatively small rigidity.

In this embodiment as well, as in the cases of Examples 1 and 2, the seat 1 provided with the slide walk-in mechanism having the configuration as shown in FIGS. 9 and 10 is placed in the front row of a two-door type passenger car with two front and rear rows of seats. When applied to the passenger seat side seat or the door side seat in the center row of the three-row seat, the slide rail unit 1150 for moving the seat 1 back and forth can be passed by a passenger boarding the rear seat. It is installed at a location away from the area S1 (see FIG. 4).

As a result, the slide rail unit 1150 is less likely to be stepped on by a passenger boarding the rear seat, hit by a foot (shoe), or pinch the heel portion of the shoe in the groove of the rail. As a result, there is less possibility that the rail will be deformed or foreign matter (dust) will be caught in the rail, which will hinder the smooth movement of the seat 1 in the front-rear direction.

Further, in the seat 1 according to the present embodiment, when the passenger moves the seat 1 forward in order to get into the rear seat, the passenger who gets into the rear seat can pass through the area S1 where the passenger gets into the rear seat. It is possible to get on and off safely and smoothly without any protrusions or recesses that may interfere with the person's feet.

Further, also in this embodiment, as in the modified example of the first embodiment, it can be applied to a seat having a tumble walk-in mechanism.

According to this embodiment, the slide mechanism can be simplified to reduce the weight of the entire seat. Further, even if the slide mechanism is simplified, it has become possible to provide a vehicle seat having high rigidity and which does not cause the seat to tilt even when an eccentric load is applied to the seat.

As a fourth embodiment of the present invention, an example in which the guide unit 810 described in the third embodiment is replaced with a roller will be described with reference to FIGS. 11 and 12. FIG. 11 shows the configuration of the entire frame 1000 from which the cushion portion is removed from the vehicle seat according to the fourth embodiment, and FIG. 12 is a front view thereof.

In this embodiment, as shown in FIGS. 11 and 12, the roller support member 1010 is fixed to the side of the seat cushion pipe 113 facing the slide rail unit 1150, and the roller 1011 is located near the tip of the roller support member 1010. Was installed.

In the configuration of the entire frame 1000 shown in FIG. 11, the basic configurations of the seat cushion side frame 120 and the seat back side frame 110 excluding the roller support member 1010 and the roller 1011 are the whole described with reference to FIG. 2 in the first embodiment. The configuration is the same as that of the frame 100.

In the configuration including the roller support member 1010 and the roller 1011 having such a structure, when the seat cushion side frame 120 moves back and forth along the slide rail unit 1150, the roller 1011 supported by the roller support member 1010 also rotates. Move back and forth. At this time, the roller 1011 supported by the roller support member 1010 fixed to the seat cushion pipe 113 supports a part of the load applied to the seat cushion side frame 120.

The slide rail unit 1150 is equipped with a lock mechanism for locking the front-back movement of the movable rail 117, but the lock mechanism is not shown in the configurations shown in FIGS. 11 and 12.

With such a configuration, the load applied to the seat cushion side frame 120 when the passenger sits on the seat cushion 2 can be distributed and borne by the slide rail unit 1150 side and the roller 1011. That is, according to the present embodiment, the structure of the double-sided beam can be formed as in the case described in the third embodiment, and the seat cushion side even in the configuration having relatively small rigidity as compared with the cases of the first and second embodiments. Deformation of the frame 120 can be suppressed.

In this embodiment as well, as in the case of Examples 1 and 2, the seat 1 provided with the slide walk-in mechanism having the configuration as shown in FIGS. 11 and 12 is placed in the front row of a two-door type passenger car with two front and rear rows of seats. When applied to the passenger seat side seat or the door side seat in the center row of the three-row seat, the slide rail unit 1150 for moving the seat 1 back and forth can be passed by a passenger boarding the rear seat. It is installed at a location away from the area S1 (see FIG. 4).

As a result, the slide rail unit 1150 is less likely to be stepped on by a passenger boarding the rear seat, hit by a foot (shoe), or pinch the heel portion of the shoe in the groove of the rail. As a result, there is less possibility that the rail will be deformed or foreign matter (dust) will be caught in the rail, which will hinder the smooth movement of the seat 1 in the front-rear direction.

Further, in the seat 1 according to the present embodiment, when the passenger moves the seat 1 forward in order to get into the rear seat, the passenger who gets into the rear seat can pass through the area S1 where the passenger gets into the rear seat. It is possible to get on and off safely and smoothly without any protrusions or recesses that may interfere with the person's feet.

Further, also in this embodiment, as in the modified example of the first embodiment, it can be applied to a seat having a tumble walk-in mechanism.

According to this embodiment, the slide mechanism can be simplified to reduce the weight of the entire seat. Further, even if the slide mechanism is simplified, it has become possible to provide a vehicle seat having high rigidity and which does not cause the seat to tilt even when an eccentric load is applied to the seat.

As a fifth embodiment of the present invention, in the configuration including the roller support member 1010 and the roller 1011 described in the fourth embodiment, an example in which the roller support member 1010 is folded is used with reference to FIGS. 13 and 14. explain. FIG. 13 shows the configuration of the entire frame 1200 from which the cushion portion is removed from the vehicle seat according to the fifth embodiment, and FIG. 14 is a front view thereof.

In this embodiment, as shown in FIGS. 13 and 14, the fixing member 1201 and the support member 1202, and the fixing member 1201 and the support member 1202 can be opened and closed on the side of the seat cushion pipe 113 facing the slide rail unit 1150. A foldable roller unit 1210 composed of a hinge 1203 connected to the above and a roller 1204 fixed near the tip of the support member 1202 was attached.

In the configuration of the entire frame 1200 shown in FIG. 13, the basic configurations of the seat cushion side frame 120 and the seat back side frame 110 excluding the foldable roller unit 1210 are the overall frame 100 described with reference to FIG. 2 in the first embodiment. It is the same as the configuration of.

In the configuration provided with the foldable roller unit 1210 having such a structure, when the seat cushion side frame 120 moves back and forth along the slide rail unit 1150, the roller 1204 of the foldable roller unit 1210 also moves back and forth while rotating. .. In particular, the roller 1204 of the foldable roller unit 1210 fixed to the seat cushion pipe 113 supports a part of the load applied to the seat cushion side frame 120.

The slide rail unit 1150 is equipped with a lock mechanism for locking the front-back movement of the movable rail 117, but the lock mechanism is not shown in the configurations shown in FIGS. 13 and 14.

With such a configuration, the load applied to the seat cushion side frame 120 when the passenger sits on the seat cushion 2 is distributed and borne by the slide rail unit 1150 side and the foldable roller unit 1210. Can be done. That is, according to the present embodiment, the structure of the double-sided beam can be formed as in the case described in the third embodiment, and the seat cushion side even in the configuration having relatively small rigidity as compared with the cases of the first and second embodiments. Deformation of the frame 120 can be suppressed.

Also in this embodiment, as in the case of Examples 1 and 2, the seat 1 provided with the slide walk-in mechanism having the configuration as shown in FIGS. 13 and 14 is placed in the front row of a two-door type passenger car with two front and rear rows of seats. When applied to the passenger seat side seat or the door side seat in the center row of the three-row seat, the slide rail unit 1150 for moving the seat 1 back and forth can be passed by a passenger boarding the rear seat. It is installed at a location away from the area S1 (see FIG. 4).

As a result, the slide rail unit 1150 is less likely to be stepped on by a passenger boarding the rear seat, hit by a foot (shoe), or pinch the heel portion of the shoe in the groove of the rail. As a result, there is less possibility that the rail will be deformed or foreign matter (dust) will be caught in the rail, which will hinder the smooth movement of the seat 1 in the front-rear direction.

Further, the seat 1 provided with the slide walk-in mechanism according to the present embodiment covers the area S1 through which the passengers boarding the rear seats can pass when the seat 1 is moved forward in order to board the rear seats. Can get on and off safely and smoothly without any protrusions or recesses that may interfere with the feet of passengers who board the rear seats.

Further, in the present embodiment, as shown in FIG. 14, the foldable roller unit 1210 has the support member 1202 and the roller 1204 attached to the fixing member 1201 fixed to the seat cushion pipe 113 with the hinge 1203 as the center of rotation. On the other hand, it has a structure that can be folded inside the seat cushion pipe 113.

By adopting the foldable roller unit 1210 that can be folded in this way, when the seat 1 is flipped up by using the tumble walk-in mechanism as shown in FIG. 6 in the modified example of the first embodiment. By folding the support member 1202 and the roller 1204 of the foldable roller unit 1210 inward, the protrusion to the area S2 (see FIG. 6) through which the passengers boarding the rear seats can pass can be reduced. It can be out of the way of passengers boarding the back seats.

As a result, the passenger who gets into the rear seat can get on and off safely and smoothly without any protrusions or recesses that hinder his / her feet.

According to this embodiment, the slide mechanism can be simplified to reduce the weight of the entire seat. Further, even if the slide mechanism is simplified, it has become possible to provide a vehicle seat having high rigidity and which does not cause the seat to tilt even when an eccentric load is applied to the seat.

In Examples 1 to 5, an example in which only one set of slide rail units is used has been described, but in this embodiment, an example in which two sets of slide rail units are used will be described. FIG. 15 shows the configuration of the entire frame 1400 from which the cushion portion of the vehicle seat according to the sixth embodiment is removed, and FIG. 16 shows a front view thereof.

As shown in FIG. 15, in this embodiment, two sets of slide rail units 1150 and 1410 having different lengths are used. In the configuration of the entire frame 1400 shown in FIG. 15, the basic configuration of the seat back side frame 110 is the same as the configuration of the overall frame 100 described with reference to FIG. 2 in the first embodiment.

The seat cushion side frame 140 in this embodiment has a pair of side frames 142 and 1401 whose rear end portion is connected to the rear side connecting frame 111 and whose vicinity of the front end portion is connected to the connecting pipe 143, and the side frame 142. A plate 114 on which the plate 114 is placed, a plate 1402 on which the side frame 1401 is placed, a slide rail unit 1150 that supports the plate 114 and can slide back and forth, and a slide rail unit 1410 that supports the plate 1402 and can slide back and forth. ing.

The slide rail unit 1150 has the same configuration as the slide rail unit 1150 described in the first embodiment. On the other hand, the slide rail unit 1410 has a length equal to or less than half that of the slide rail unit 1150, and even when the seat 1 as shown in FIG. 4 is moved to the forward end, the slide rail unit The length of the 1150 is such that it does not protrude from the seat cushion 2.

As shown in FIG. 16, the slide rail unit 1410, like the slide rail unit 1150, has a fixed rail (lower rail) 1403 fixed to the floor (not shown) of the vehicle and along the fixed rail 1403. It is configured to include a movable rail 1404 that is slidable, a ball screw 1405 that is rotationally driven by a drive source (not shown), and a nut portion 1406 that is fixed to the movable rail 1404 and screwed with the ball screw 1405. By rotationally driving the ball screw 1405 with a drive source (not shown), the movable rail 1404 fixing the nut portion 1406 moves back and forth along the fixed rail 1403.

Here, by sharing a drive source (not shown) between the slide rail unit 1410 and the slide rail unit 1150, the movable rails 1404 and 117 can be moved back and forth in synchronization with each other. As a result, even when two sets of slide rail units 1150 and 1410 are used, the entire frame 1400 can be smoothly moved back and forth.

Although FIGS. 15 and 16 show a configuration in which the slide rail unit 1410 is provided with a ball screw 1405 and a nut portion 1406 and is driven by a drive source common to that of the slide rail unit 1150, the slide rail unit 1410 is provided with a ball screw 1405. Instead of providing the nut portion 1406, only the slide rail unit 1150 side may be driven by a drive source (not shown), and the slide rail unit 1410 side may be configured to follow the movement of the slide rail unit 1150. ..

The slide rail unit 1150 is equipped with a lock mechanism for locking the front-back movement of the movable rail 117, but the lock mechanism is not shown in the configurations shown in FIGS. 15 and 16.

With such a configuration, the load applied to the seat cushion side frame 140 when the passenger sits on the seat cushion 2 can be distributed and borne by the slide rail units 1150 and 1410 on both sides. That is, according to this embodiment, the structure of the double-sided beam can be formed as in the case described in Examples 3 to 5, and the seat can be configured with relatively low rigidity as compared with the cases of Examples 1 and 2. Deformation of the cushion side frame 140 can be suppressed.

In this embodiment as well, as in the cases of Examples 1 and 2, the seat 1 provided with the slide walk-in mechanism having the configuration as shown in FIGS. 15 and 16 is placed in the front row of the two-door type passenger car having two front and rear rows of seats. When applied to the passenger side seat or the door side seat in the center row of the three-row seat, the slide rail unit 1150 for moving the seat 1 back and forth can be passed by a passenger boarding the rear seat. Since it is installed away from the area S1 (see FIG. 4), the slide rail unit 1150 is stepped on by a passenger who gets into the back seat, is hit by a foot (shoe), or is a heel part of the shoe. Is less likely to get caught in the rail groove, and the rail may be deformed or foreign matter (dust) may get caught in the rail, hindering the smooth movement of the seat 1 in the front-rear direction. Has decreased.

Further, the seat 1 provided with the slide walk-in mechanism according to the present embodiment covers the area S1 through which the passengers boarding the rear seats can pass when the seat 1 is moved forward in order to board the rear seats. Can get on and off safely and smoothly without any protrusions or recesses that may interfere with the feet of passengers who board the rear seats.

Further, in this embodiment, as shown in FIG. 6 in the modified example of the first embodiment, the leg bracket 405 of the tumble walk-in mechanism is used for both the slide rail units 1150 and 1410 to flip up the seat 1. You can also. As a result, the protrusion to the area S2 (see FIG. 6) through which the passengers boarding the rear seats can pass can be reduced so as not to interfere with the passengers boarding the rear seats.

As a result, the passenger who gets into the rear seat can get on and off safely and smoothly without any protrusions or recesses that hinder his / her feet.

According to this embodiment, the slide mechanism can be simplified to reduce the weight of the entire seat. Further, even if the slide mechanism is simplified, it has become possible to provide a vehicle seat having high rigidity and which does not cause the seat to tilt even when an eccentric load is applied to the seat.

In the fourth embodiment, the configuration in which the roller support member 1010 is fixed on the side of the seat cushion pipe 113 facing the slide rail unit 1150 and the roller 1011 is attached near the tip of the roller support member 1010 has been described. In the embodiment, an example in which a plate material is used instead of the roller 1011 of the fourth embodiment will be described.

FIG. 17 shows the configuration of the entire frame 1600 according to this embodiment. The configuration of the entire frame 1600 in this embodiment is basically the same as the configuration shown in FIG. 11 described in the fourth embodiment, and the roller support member 1010 and the roller 1011 attached near the tip thereof are replaced. The slide portion 1610 was attached.

The slide portion 1610 has a configuration in which the plate support member 1601 is fixed to the side of the seat cushion pipe 113 facing the slide rail unit 1150, and the plate 1602 is fixed to the tip end portion of the plate support member 1601.

In the configuration provided with the slide portion 1610 having such a structure, when the seat cushion side frame 120 moves back and forth along the slide rail unit 1150, the plate 1602 attached to the tip portion of the plate support member 1601 is shown in the figure. Move back and forth while sliding on the floor of a vehicle that is not. The front end and rear end of the plate 1602 are bent upward like skis, making them slippery when sliding back and forth on the floor of the vehicle. At this time, the slide portion 1610 fixed to the seat cushion pipe 113 supports a part of the load applied to the seat cushion side frame 120.

The slide rail unit 1150 is equipped with a lock mechanism that locks the front-back movement of the movable rail 117, but the lock mechanism is not shown in the configuration shown in FIG.

With such a configuration, the load applied to the seat cushion side frame 120 when the passenger sits on the seat cushion 2 can be distributed and borne by the slide rail unit 1150 side and the slide portion 1610. .. That is, according to the present embodiment, the structure of the double-sided beam can be formed as in the case described in the third embodiment, and the seat cushion side even in the configuration having relatively small rigidity as compared with the cases of the first and second embodiments. Deformation of the frame 120 can be suppressed.

In this embodiment as well, as in the cases of the first and second embodiments, the seat 1 provided with the slide walk-in mechanism having the configuration as shown in FIG. 17 is the front passenger seat of the two-door type passenger car having two front and rear rows of seats. When applied to the side seat or the door side seat in the center row of the three-row seat, the slide rail unit 1150 for moving the seat 1 back and forth can pass through the area S1 (the area S1 () through which the passenger boarding the rear seat can pass. Since it is installed away from (see Fig. 4), the slide rail unit 1150 can be stepped on by a passenger who gets into the back seat, hit by a foot (shoe), or the heel of the shoe can be railed. The possibility of being pinched in the groove is reduced, and the possibility that the rail is deformed or foreign matter (dust) is caught in the rail and the smooth movement of the seat 1 in the front-rear direction is hindered is reduced. It was.

Further, the seat 1 according to the present embodiment gets into the rear seat in the area S1 through which the passenger who gets into the rear seat can pass when the seat 1 is moved forward in order to get into the rear seat. It is possible to get on and off safely and smoothly without any protrusions or recesses that may interfere with the passenger's feet.

According to this embodiment, the slide mechanism can be simplified to reduce the weight of the entire seat. Further, even if the slide mechanism is simplified, it has become possible to provide a vehicle seat having high rigidity and which does not cause the seat to tilt even when an eccentric load is applied to the seat.

Example 8 of the present invention will be described with reference to FIGS. 18 and 19.
FIG. 18 shows the configuration of the entire frame 1800 from which the cushion portion of the vehicle seat 1 shown in FIG. 1 is removed. The entire frame 1800 includes a seat cushion side frame 2110 on the side of the seat cushion 2 and a seat back side frame 2150 on the side of the seat back 3.

The seat cushion side frame 2110 is a front side connecting frame 2102 connecting a pair of side frames 2101 and a pair of side frames 2101 on the front side, and a rear side connecting frame 2103 connecting a pair of side frames 2101 on the rear side. A support plate 2105 is provided which is fixed to a plate 2104 connecting the connection frame 2102 and the rear connection frame 2103 and supports a roller (auxiliary wheel) 2106, respectively. 2210 is a fixed rail.

The seat back side frame 2150 includes a frame 2151 forming the outer circumference of the seat back 3 and a connection frame 2152 connecting both sides of the frame 2151, and the frame 2151 rotates with the rear connection frame 2103 near the end portion. Engage freely.

FIG. 19 shows a cross-sectional view taken along the line AA of FIG.
Reference numeral 2210 is a fixed rail, which is fixed to the floor 2230 of the vehicle. The fixed rail (lower rail) 2210 is arranged substantially at the center of the seat cushion side frame 2110. The 2220 is a movable rail (upper rail), and is slidable along the fixed rail 2210.

Reference numeral 2221 is a ball screw, which is rotationally driven by a drive mechanism (not shown). The 2222 is fixed to the movable rail 2220 with a nut portion and meshes with the ball screw 2221. A plate 2104 connecting the front connecting frame 2102 and the rear connecting frame 2103 of the seat cushion side frame 2110 is fixed to the upper surface of the movable rail 2220.

Rollers 2106 are rotatably attached to the vicinity of the tips of the support plates 2105 fixed to the pair of side frames 2101. The pair of left and right rollers 2106 are in contact with the floor 2230 of the vehicle. Further, the pair of left and right rollers 2106 are arranged so as to face each other in a direction substantially perpendicular to the direction in which the movable rail 2220 slides along the fixed rail 2210.

With such a structure, when the ball screw 2221 is rotationally driven by a drive mechanism (not shown), the movable rail 2220 fixing the nut portion 2222 screwed with the ball screw according to the rotation direction of the ball screw 2221 becomes the fixed rail 2210. Move back and forth along. As the movable rail 2220 moves in the front-rear direction, the entire frame 1800 connected to the movable rail 2220 via the plate 2104 moves in the front-rear direction.

Here, when the load applied to the seat cushion side frame 2110 of the entire frame 1800 is biased (for example, the passenger seated on the vehicle seat 1 shown in FIG. 1 is biased toward one side of the seat cushion 2 and the weight is biased. However, the pair of left and right rollers 2106 can prevent the seat cushion side frame 2110 from tilting to the right or left side.

As described above, according to the present embodiment, even if only one set of the slide rail structure composed of the fixed rail 2210 and the movable rail 2220 is arranged in the central portion of the seat cushion side frame 2110, the pair of left and right rollers 2106 are used. It is possible to prevent the seat cushion side frame 2110 from tilting to the right or left side, and to secure the rigidity of the seat cushion side frame 2110. As a result, the vehicle seat 1 can be smoothly moved back and forth.

According to this embodiment, since only one set of slide rails is used, the weight of the entire seat can be reduced.

In addition, compared to the case where two sets of slide rails are used, the mechanism for driving the slide rails can be simplified, and the energy conversion efficiency from the drive source when driving the slide rails is improved, so that the drive source can be miniaturized and further. , Problems such as out-of-sync movement of slide rails no longer occur.

Further, although not shown, only one set of slide lock mechanism is required, and the mechanism can be simplified.

In the eighth embodiment, the configuration in which the fixed rail 2210 is fixed to the floor 2230 of the vehicle has been described. However, in the present embodiment, FIGS. 20 and 21 are used for the configuration in which the fixed rail is floated from the floor 2230 of the vehicle. Will be explained.

FIG. 20 shows the configuration of the entire frame 2000 from which the cushion portion of the vehicle seat 1 shown in FIG. 1 according to the present embodiment is removed. The entire frame 2000 includes a seat cushion side frame 2120 on the side of the seat cushion 2 and a seat back side frame 2150 on the side of the seat back 3. Since the basic configurations of the seat cushion side frame 2120 and the seat back side frame 2150 are the same as the configurations of FIG. 18 described in the eighth embodiment, the differences will be described.

In this embodiment, the configuration different from that of the eighth embodiment shown in FIG. 18 is that, as shown in FIG. 20, the fixed rail (lower rail) 2260 floats from the floor 2230 of the vehicle, and the pedestals are installed at two front and rear positions. It is a point fixed to the portion 2261.

The arrow view of the BB cross section in FIG. 20 is shown in FIG. The pedestal portion 2261 is fixed to the floor 2230 of the vehicle, and the fixed rail 2260 is fixed to the pedestal portion 2261. A movable rail (upper rail) 2250 is attached to the fixed rail 2260 in a slidable state with respect to the fixed rail 2260. Further, a nut portion 2252 screwed with the ball screw 2251 is fixed to the movable rail 2250, and is driven by a drive portion (not shown).

The configuration in which the rollers 2116 are attached to the vicinity of the tips of the support plates 2115 fixed to the pair of side frames 2101 is the same as in the case of the eighth embodiment. The pair of left and right rollers 2116 are in contact with the floor 2230 of the vehicle.

With such a structure, when the ball screw 2251 is rotationally driven by a drive mechanism (not shown), the movable rail 2250 fixing the nut portion 2252 screwed with the ball screw 2251 according to the rotation direction of the ball screw 2251 becomes a fixed rail. It moves back and forth along 2260. As the movable rail 2250 moves in the front-rear direction, the entire frame 2000 connected to the movable rail 2250 via the plate 2104 moves in the front-rear direction.

Here, when the load applied to the seat cushion side frame 2120 of the entire frame 2000 is biased (for example, the passenger seated on the vehicle seat 1 shown in FIG. 1 is biased toward one side of the seat cushion 2 and has a weight. However, the pair of left and right rollers 2116 can prevent the seat cushion side frame 2120 from tilting to the right or left side.

As described above, according to the present embodiment, even if only one set of the slider rail structure composed of the fixed rail 2260 and the movable rail 2250 is arranged in the central portion of the seat cushion side frame 2120, the pair of left and right rollers 2116 will be used. It is possible to prevent the seat cushion side frame 2120 from tilting to the right or left side, and to secure the rigidity of the seat cushion side frame 2120. As a result, the vehicle seat 1 can be smoothly moved back and forth.

Further, by adopting the structure in which the fixed rail 2260 is floated from the floor 2230 of the vehicle in this way, a space is created between the seat cushion side frame 2120 and the floor 2230 of the vehicle, except for the above-described description relating to the vehicle seat 1. There is a margin in mounting the parts of.

According to this embodiment, since only one set of slide rails is used and the slide rails are lifted from the floor to be supported, a space is created under the seat, and parts other than those described above related to the vehicle seat 1 are provided. The mounting restrictions have been relaxed, and the degree of freedom in component mounting can be increased.

In addition, since only one set of slide rails is used, the weight of the entire seat can be reduced.

In addition, compared to the case where two sets of slide rails are used, the mechanism for driving the slide rails can be simplified, and the energy conversion efficiency from the drive source when driving the slide rails is improved, so that the drive source can be miniaturized and further. , Problems such as out-of-sync movement of slide rails no longer occur.

Further, although not shown, only one set of slide lock mechanism is required, and the mechanism can be simplified.

Next, an example will be described by applying the present invention to a bench seat in which a plurality of passengers can be seated at the same time.

FIG. 22 shows a bench seat frame structure 2200 in which the cushion portion of the bench seat according to the present embodiment is removed. The bench seat frame structure 2200 includes a seat cushion side frame 2340 on which the passenger sits, and seat back side frames 2310 and 2320 on the side on which the seated passenger leans back, and includes an end portion 2341 of the seat cushion side frame 2340. The end portions 2311 and 2321 of the seat back side frames 2310 and 2320 are connected by a connection frame 2330.

The seat back side frames 2310 and 2320 are connected to each other via support members having a pair of support plates 2351 formed on both sides of the base plate 2350. The base plate 2350 and the seat cushion side frame 2340 are fixed to the plate 2352. The plate 2352 is located at an intermediate portion between the seat back side frames 2310 and 2320 and at an intermediate portion in the width direction of the seat cushion side frame 2340.

Further, support plates 2242 are fixed to the left and right portions of the seat cushion side frame 2340, and rollers 2243 are attached to the vicinity of the tip of the support plate 2242. The pair of left and right rollers (auxiliary wheels) 2243 are in contact with the floor 2230 of the vehicle.

The arrow view of the CC cross section of FIG. 22 is shown in FIG. The plate 2352 to which the base plate 2350 and the seat cushion side frame 2340 are fixed is fixed to the movable rail (upper rail) 2363. The movable rail 2363 is guided by a fixed rail (lower rail) 2360 fixed to the floor 2230 of the vehicle, and is configured to be slidable along the fixed rail.

Reference numeral 2361 is a ball screw, which is rotationally driven by a drive mechanism (not shown). The 2362 is fixed to the movable rail 2363 with a nut portion and meshes with the ball screw 2361.

With such a structure, when the ball screw 2361 is rotationally driven by a drive mechanism (not shown), the movable rail 2363 fixing the nut portion 2362 screwed with the ball screw 2361 according to the rotation direction of the ball screw 2361 becomes a fixed rail. It moves back and forth along 2360. With the movement of the movable rail 2363 in the front-rear direction, the bench seat frame structure 2200 connected to the movable rail 2363 via the plate 2352 moves in the front-rear direction.

Here, when the load applied to the seat cushion side frame 2340 of the bench seat frame structure 2200 is biased (for example, the passenger seated on the vehicle seat 1 shown in FIG. 1 is biased to one side of the seat cushion 2). Even when the weight is applied), the pair of left and right rollers 2243 can prevent the seat cushion side frame 2340 from tilting to the right or left side.

As described above, according to the present embodiment, even if only one set of the slider rail structure composed of the fixed rail 2360 and the movable rail 2363 is arranged in the central portion of the seat cushion side frame 2340, the pair of left and right rollers 2243 are used. , The seat cushion side frame 2340 can be prevented from tilting to the right or left side, and the rigidity of the bench seat frame structure 2200 can be ensured. As a result, the bench seat can be smoothly moved back and forth.

According to this embodiment, since only one set of slide rails is used, the weight of the entire bench seat can be reduced.

In addition, compared to the case where two sets of slide rails are used, the mechanism for driving the slide rails can be simplified, and the energy conversion efficiency from the drive source when driving the slide rails is improved, so that the drive source can be miniaturized and further. , Problems such as out-of-sync movement of slide rails no longer occur.

Further, although not shown, only one set of slide lock mechanism is required, and the mechanism can be simplified.

In the tenth embodiment, the configuration in which the fixed rail 2360 is fixed to the floor 2230 of the vehicle has been described, but in the present embodiment, FIGS. 24 and 25 are used for the configuration in which the fixed rail is floated from the floor 2230 of the vehicle. Will be explained.

FIG. 24 shows a bench seat frame structure 2400 from which the cushion portion of the bench seat according to the present embodiment is removed. The bench seat frame structure 2400 includes a seat cushion side frame 2440 on which the passenger sits, and seat back side frames 2410 and 2420 on the side on which the seated passenger leans back.

Since the basic configurations of the seat cushion side frame 2440 and the seat back side frames 2410 and 2420 are the same as the configurations of FIG. 22 described in the tenth embodiment, only the different parts will be described. The end 2441 of the seat cushion side frame 2440 and the ends 2411 and 2421 of the seat back side frames 2410 and 2420 are connected by a connection frame 2430.

In this embodiment, the configuration different from that of the tenth embodiment shown in FIG. 22 is that, as shown in FIG. 24, the fixed rail 2460 floats from the floor 2230 of the vehicle and is attached to the pedestals 2471 and 2474 installed at two locations on the left and right. It is a point fixed to a supported pipe frame 2470.

FIG. 25 shows a front view of the slide rail of the bench seat frame structure 2400 shown in FIG. 24 and its surroundings. The left and right pedestals 2471 and 2474 are fixed to the floor 2230 of the vehicle, the pipe frame 2470 is fixed to the pedestals 2471 and 2474, and the fixed rail (lower rail) 2460 is fixed on the pipe frame 2470. Indicates the state. A movable rail (upper rail) 2453 is attached to the fixed rail 2460 in a slidable state with respect to the fixed rail 2460. Further, a nut portion 2462 screwed with the ball screw 2461 is fixed to the movable rail 2453, and is driven by a drive portion (not shown).

Further, guide pipes 2472 and 2475 are connected between the portion of the connection frame 2430 corresponding to the seat back side frames 2410 and 2420 and the seat cushion side frame 2440. In addition, guide plates 2473 and 2476 are attached to the pedestals 2471 and 2474, and the bent portions of the respective tip portions of the guide plates 2473 and 2476 come into contact with the guide pipes 2472 and 2475 to come into contact with the guide pipes 2472 or 2475. It has a structure that prevents it from floating.

With such a structure, when the ball screw 2461 is rotationally driven by a drive mechanism (not shown), the movable rail 2453 fixing the nut portion 2462 screwed with the ball screw 2461 according to the rotation direction of the ball screw 2461 becomes a fixed rail. It moves back and forth along the 2460. As the movable rail 2453 moves in the front-rear direction, the bench seat frame structure 2400 connected to the movable rail 2453 via the plate 2452 moves in the front-rear direction.

Here, even when the load applied to the seat cushion side frame 2440 of the bench seat frame structure 2400 is biased, the bent portions of the respective tip portions of the guide plates 2473 and 2476 are the guide pipes 2472 and 2475. In contact, the relative movement of the guide pipes 2472 and 2475 with respect to the guide plates 2473 and 2476 is restricted. As a result, the guide pipe 2472 or 2475 is prevented from floating. As described above, the structure for preventing the relative movement of the guide pipes 2472 and 2475 with respect to the guide plates 2473 and 2476 can prevent the seat cushion side frame 2440 from tilting to the right or left side.

As described above, according to the present embodiment, even if only one set of the slider rail structure composed of the fixed rail 2460 and the movable rail 2453 is arranged in the central portion of the seat cushion side frame 2440, the seat cushion side frame 2440 It is possible to prevent the bench seat frame structure from tilting to the right or left side, and to secure the rigidity of the bench seat frame structure 2400. As a result, the bench type vehicle seat can be smoothly moved back and forth.

Further, by adopting the structure in which the fixed rail 2460 is floated from the floor 2230 of the vehicle in this way, a space is created between the seat cushion side frame 2440 and the floor 2230 of the vehicle, except for the above-described description relating to the vehicle seat 1. There is a margin in mounting the parts of.

In this embodiment, the seat cushion side frame has a structure that prevents the bent portions of the tip portions of the guide plates 2473 and 2476 from coming into contact with the guide pipes 2472 and 2475 to lift the guide pipes 2472 or 2475. The 2440 is prevented from tilting to the right or left side, but instead of this, a structure in which a roller 2243 is attached near the tip of the support plate 2242 as described in the tenth embodiment can also be used. It is possible to prevent the seat cushion side frame 2440 from tilting to the right or left side.

Further, the heights of the pedestals 2471 and 2474 from the floor 2230 are not particularly limited, and even if the heights of the floors 2230 are different between the front and the rear of the pedestals 2471 and 2474, the heights of the floors 2230 are adjusted accordingly. The pedestal may be designed, and even if the height of the floor 2230 varies from place to place (for example, the upper part of the wheel and other parts), it can be flexibly dealt with.

According to this embodiment, since only one set of slide rails is used and the slide rails are lifted from the floor to be supported, a space is created under the seat, and parts other than those described above related to the bench seat are mounted. Constraints have been relaxed, and there is now room for component mounting.

In addition, since only one set of slide rails is used, the weight of the entire bench seat can be reduced.

In addition, compared to the case where two sets of slide rails are used, the mechanism for driving the slide rails can be simplified, and the energy conversion efficiency from the drive source when driving the slide rails is improved, so that the drive source can be miniaturized and further. , Problems such as out-of-sync movement of slide rails no longer occur.

Further, although not shown, only one set of slide lock mechanism is required, and the mechanism can be simplified.

Although the invention made by the present inventor has been specifically described above based on Examples, the present invention is not limited to the above Examples and includes various modifications. For example, it is possible to replace a part of the configuration of the embodiment with the configuration of another embodiment within the range that does not deviate from the gist, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. It is possible. Further, it is possible to add / delete / replace other known configurations with respect to a part of the configurations of each embodiment.

1 ... Vehicle seat 2 ... Seat cushion 3 ... Seat back 100, 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800, 2000 ... Overall frame 110, 2150, 2310 , 2320, 2410, 2420 ... Seat back side frame 120, 130, 140, 2110, 2120, 2340, 2440 ... Seat cushion side frame 405 ... Leg bracket 810 ... Guide unit 1150, 1410 ...・ Slide rail unit 1210 ・ ・ ・ Folding roller unit 1610 ・ ・ ・ Slide part 2104, 2352, 2452 ・ ・ ・ Plate 2106, 2116, 2243 ・ ・ ・ Roller 2210, 2260, 2360, 2460 ・ ・ ・ Fixed rail 2220, 2250, 2363, 2453 ... Movable rails 2261, 2471, 474 ... Pedestal.

Claims (4)

It ’s a vehicle seat,
A seat cushion on which the passenger sits with a seat cushion side frame and a cushion covering the surface of the seat cushion side frame, and
A seat back having a seat back side frame and a cushion covering the surface of the seat back side frame, and a seat back on which a passenger seated on the seat cushion can rest his / her back.
A set of slide rail units equipped with the seat cushion and having a movable rail that can move in the front-rear direction of the seat cushion and a fixed rail that is fixed to the floor surface side of the vehicle and guides the movable rail.
A leg bracket that mounts the vicinity of the tip of the fixed rail of the set of slide rail units and fixes the fixed rail to the floor surface side of the vehicle.
As a support mechanism portion that supports a part of the load of the passenger seated on the seat cushion at a portion facing the portion supported by the movable rail in the width direction of the seat cushion side frame.
A bracket having an elongated hole formed along the moving direction of the seat cushion side frame, a pin engaging with the elongated hole formed in the bracket, and a holding plate for holding the pin are provided.
The movable rail of the set of slide rail units supports the seat cushion side frame on the side closer to the vehicle seat of the adjacent seat than the central portion of the seat cushion.
In the leg bracket, the seat back is tilted toward the seat cushion to obtain the 1
By flipping up the seat cushion with the leg bracket as the center of rotation in a state where the seat cushion is advanced to the forward end by the set of slide rail units, the seat cushion is used for the vehicle next to the set of slide rail units. A vehicle seat characterized in that the floor surface of the vehicle is formed flat in an area on the opposite side of the seat from which a occupant passes to sit on a seat at the rear of the seat cushion. It ’s a vehicle seat,
A seat cushion on which the passenger sits with a seat cushion side frame and a cushion covering the surface of the seat cushion side frame, and
A seat back having a seat back side frame and a cushion covering the surface of the seat back side frame, and a seat back on which a passenger seated on the seat cushion can rest his / her back.
A set of slide rail units equipped with the seat cushion and having a movable rail that can move in the front-rear direction of the seat cushion and a fixed rail that is fixed to the floor surface side of the vehicle and guides the movable rail.
A leg bracket that mounts the vicinity of the tip of the fixed rail of the set of slide rail units and fixes the fixed rail to the floor surface side of the vehicle.
As a support mechanism portion that supports a part of the load of the passenger seated on the seat cushion at a portion facing the portion supported by the movable rail in the width direction of the seat cushion side frame.
A roller that comes into contact with the floor surface of the vehicle and rotates and moves in the front-rear direction is provided.
The movable rail of the set of slide rail units supports the seat cushion side frame on the side closer to the vehicle seat of the adjacent seat than the central portion of the seat cushion.
In the leg bracket, the seat back is tilted toward the seat cushion to obtain the 1
By flipping up the seat cushion with the leg bracket as the center of rotation in a state where the seat cushion is advanced to the forward end by the set of slide rail units, the seat cushion is used for the vehicle next to the set of slide rail units. A vehicle seat characterized in that the floor surface of the vehicle is formed flat in an area on the opposite side of the seat from which a occupant passes to sit on a seat at the rear of the seat cushion. The vehicle seat according to claim 2, wherein the support mechanism portion has a hinge for folding the roller. It ’s a vehicle seat,
A seat cushion on which the passenger sits with a seat cushion side frame and a cushion covering the surface of the seat cushion side frame, and
A seat back having a seat back side frame and a cushion covering the surface of the seat back side frame, and a seat back on which a passenger seated on the seat cushion can rest his / her back.
A set of slide rail units equipped with the seat cushion and having a movable rail that can move in the front-rear direction of the seat cushion and a fixed rail that is fixed to the floor surface side of the vehicle and guides the movable rail.
A leg bracket that mounts the vicinity of the tip of the fixed rail of the set of slide rail units and fixes the fixed rail to the floor surface side of the vehicle.
As a support mechanism portion that supports a part of the load of the passenger seated on the seat cushion at a portion facing the portion supported by the movable rail in the width direction of the seat cushion side frame.
A plate that comes into contact with the floor surface of the vehicle and moves while sliding in the front-rear direction is provided.
The movable rail of the set of slide rail units supports the seat cushion side frame on the side closer to the vehicle seat of the adjacent seat than the central portion of the seat cushion.
In the leg bracket, the seat back is tilted toward the seat cushion to obtain the 1
By flipping up the seat cushion with the leg bracket as the center of rotation in a state where the seat cushion is advanced to the forward end by the set of slide rail units, the seat cushion is used for the vehicle next to the set of slide rail units. A vehicle seat characterized in that the floor surface of the vehicle is formed flat in an area on the opposite side of the seat from which a occupant passes to sit on a seat at the rear of the seat cushion.

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