JP2014104905A - Seat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat device capable of adjusting a partition position of a seating surface width of a seating seat formed by a belt-like seat base material.SOLUTION: A seat device 1 includes: a belt like seat base material 10 forming a seat on which a seating person is seated; a first seat support 20a which supports the seat base material 10; a second seat support 20b; and a third seat support 40. The seat base material 10 is expanded between the first seat support 20a and the second seat support 20b to form the seating seat. The third seat support 40 may move between the first seat support 20a and the second seat support 20b.

Description

  The present invention relates to a seat device, and more particularly, to a vehicle seat device that can effectively use a space in a vehicle cabin and forms a seat excellent in a seating feeling for an occupant.

2. Description of the Related Art Conventionally, various vehicle seats that are compactly stored and can secure a sufficient space in a vehicle interior and can be assembled by a simple operation have been proposed.
In such a vehicle seat, a technique is known in which a seating seat can be formed from a belt-like seat material with a simple structure (for example, Patent Document 1).

In the auxiliary seat for a vehicle described in Patent Document 1, a pair of left and right sheet-forming sheet-like sheet bodies are housed in a console main body arranged on the vehicle body floor so that the sheet-like sheet can be pulled out. By connecting the end to a pair of sheet holding frames that can be freely attached to and detached from the side surface of the console main body, and pulling out and fixing the sheet holding frame to the left and right outer sides, a belt-like sheet is provided between the console main body and the sheet holding frame. The body is stretched to form a pair of seating sheets.
Since it is configured in this way, it is always compactly stored and can be easily assembled and used as required.

JP-A-11-99860

However, the auxiliary seat for a vehicle as disclosed in Patent Document 1 is drawn between the console body and the seat holding frame body by pulling and fixing the pair of seat holding frame bodies to the left and right outside from the console body fixed to the vehicle body floor. However, the console main body itself could not be moved in the seat width direction with respect to the vehicle body floor.
Therefore, by moving the console body in the seat width direction and widening or narrowing one seat seat surface width among the pair of seating seats, according to the physique and posture of the occupant, or the preference of the occupant, There has been a demand for a seat device capable of adjusting the partition position of the seating surface width of the seating seat.
Moreover, although the auxiliary seat for vehicles like patent document 1 forms a seating sheet by stretching a belt-like sheet body between a console main body and a sheet holding frame, it can wind up a belt-like sheet body only on the console main body side. Since a simple winding body was provided, it was not possible to wind up the seat on which the occupant was seated from both the left and right sides. Therefore, by configuring the belt-like sheet body so that it can be wound from both the console main body side and the seat holding frame body side, the seat device can adjust the tension of the seating seat more finely according to the physique of the occupant or the preference of the occupant Was desired.
Moreover, although the auxiliary seat for vehicles like patent document 1 divides | segments a strip | belt-shaped sheet | seat body into a backrest part and a seating part, and each stretches so that winding is possible, a backrest part is one strip | belt-shaped sheet | seat. Since it consists of a body, it was difficult to change the tension | tensile_strength of a strip | belt-shaped sheet | seat body suitably according to the passenger | crew's head, back part, and waist | hip | lumbar part which are seated, for example. Therefore, there has been a demand for a seat device in which a backrest portion of a seating seat is formed from a plurality of belt-like sheet bodies, and the tension of the seating seat can be appropriately adjusted in accordance with a seated occupant site.
Moreover, the auxiliary seat for a vehicle like Patent Document 1 does not include an occupant posture detection sensor, a seat weight sensor, or the like that detects the physique or posture of a seated occupant or the weight of the occupant, and is based on the detection signal. The seat seat width change and seat surface tension change were not controlled. Therefore, there is a demand for a seat device that automatically detects the physique and posture of a seated occupant or the weight of the occupant and controls the seat seat width change and seat surface tension change to improve the seating feeling of the occupant. It was.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a sheet support that partitions the seating surface width of a seating sheet formed from a belt-like sheet base material so as to be movable within the sheet width. Then, it is providing the seat apparatus which can adjust the partition position of the seating surface width of a seating seat.
Another object of the present invention is to provide a seat device capable of finely adjusting the tension of a seating sheet by configuring the belt-like sheet base material so that it can be wound from both sides in the sheet width direction.
Another object of the present invention is to provide a seat device in which a seat back portion is formed from a plurality of belt-shaped sheet bases, and the tension of the seating seat can be adjusted in accordance with a seated occupant site. It is in.
Another object of the present invention is to automatically detect the physique and posture of a seated occupant, or the weight of the occupant, and control the seat seat width change and seat surface tension change to improve the seating feeling of the occupant. An object of the present invention is to provide an improved sheet apparatus.

  According to the seat device of the present invention, the subject is disposed so as to sandwich a sheet-like sheet base material that forms a seat on which a seated person is seated, and the sheet base material in the width direction of the sheet base material, A first sheet support and a second sheet support that support the sheet base, and a third sheet support that is disposed between the first sheet support and the second sheet support and supports the sheet base. And the sheet base is developed between the first sheet support and the second sheet support to form the sheet, and the third sheet support is the first sheet This is solved by being able to move between the support and the second sheet support.

Thus, the sheet substrate is developed between the first sheet support and the second sheet support to form a sheet, and the third sheet support is composed of the first sheet support and the second sheet support. A third sheet support that divides the seating surface width of the sheet formed from the belt-shaped sheet base material is movably provided between the first sheet support and the second sheet support. Thus, it is possible to provide a seat device that can adjust the partition position of the seating surface width according to the physique of the seated person or the preference of the seated person.
Therefore, for example, when there is one seated person, the third sheet support is brought close to one of the first sheet support and the second sheet support arranged on the outer side in the width direction of the sheet base, A seating sheet in a state where the seating surface width is widened can be formed. In addition, when there are a plurality of seated persons, the third seat support is disposed at a predetermined interval between the first seat support and the second seat support, so that the seat seating surface width is made uniform. A seating sheet in a state can be formed. Further, in the case where the seated persons are two persons with different physiques, the first seat support surface is widened between the first seat support and the second seat support, and the other seat seat width is narrowed. By disposing the three-seat support, a seat that matches the physique of the seated person can be formed.

In this case, the seat base material forms the seat on which an occupant sits in a vehicle interior, and at least one of the first seat support and the second seat support includes a seat take-up shaft, The take-up shaft may be capable of winding the sheet base material.
Since it is configured in this manner, in the seating sheet formed from the belt-shaped sheet base material in a limited space in the vehicle interior, the sheet base material can be wound from at least one side outside the seat width direction, The tension can be adjusted. In particular, by providing a seat take-up shaft on both the first seat support and the second seat support, the seat can be wound from both sides in the seat width direction, and the seating seat tension can be adjusted according to the physique of the occupant or the preference of the occupant. The condition can be finely adjusted.

At this time, a guide rail having a lock mechanism laid in the vehicle interior is provided, and the guide rail supports the third seat support member so as to be relatively movable with respect to the guide rail. The movement of the third sheet support may be regulated.
As described above, the guide rail supports the third seat support so as to be movable relative to the guide rail, and restricts the movement of the third seat support by the lock mechanism. In addition to adjusting the partitioning position of the seating surface width of the seating seat, the seating seat can be stably supported by fixing the third seat support by the lock mechanism.

At this time, at least one of the first sheet support and the second sheet support is supported so as to be relatively movable with respect to the guide rail, and at least one of the movements is restricted by the lock mechanism, It is preferable that the width of the sheet can be changed with the movement of at least one of them.
Since it is configured as described above, the width of the seat can be appropriately adjusted by moving at least one of the first seat support and the second seat support along the guide rail using a limited space in the vehicle interior. Can be widened or narrowed.

At this time, the third sheet support may include a third sheet winding shaft capable of winding the sheet base material.
In this way, since the sheet take-up shaft is provided not only on the first sheet support and the second sheet support but also on the third sheet support, for example, when there are a plurality of passengers seated on the seat By adjusting the winding tension of the sheet take-up shaft on the third sheet support as compared with the configuration in which the sheet take-up shaft is provided only on the first sheet support and the second sheet support, a plurality of It is possible to adjust the tension of the seat surface of the passenger.

At this time, the sheet base material includes a back sheet base material that supports a backrest portion of a seated occupant, the back sheet base material is provided in a plurality, and the sheet winding shaft includes a plurality of the back sheet base materials. It is good that each can be wound up independently.
In this way, a plurality of back sheet base materials are provided, and the sheet take-up shaft can wind up each of the plurality of back sheet base materials independently. The tension of the seating seat can be adjusted according to the position of the seated occupant.

At this time, it is preferable that a seating surface width changing unit that changes the seating surface width of the seat and a seating surface tension changing unit that changes the seating surface tension of the seat.
As described above, since the seating surface width changing unit and the seating surface tension changing unit are provided, it is possible to change the support body position and the winding tension by the operation of the occupant.

At this time, when equipped with an occupant posture detection unit that detects the physique or posture of a seated occupant, and a seat surface width control unit that drives the seat surface width changing means based on a detection signal of the occupant posture detection unit good.
As described above, since the occupant posture detection unit and the seating surface width control unit are provided, the physique or posture of the seated occupant is automatically detected, and the seating surface width change of the seating seat is controlled, so that the occupant's sitting feeling It is possible to provide a vehicular seat device with improved performance.

At this time, comprising: a seat weight detection unit that detects the weight of a seated occupant; and a seat surface tension control unit that drives the seat surface tension changing unit based on a detection signal of the seat weight detection unit; good.
As described above, the seat weight detection unit and the seat surface tension control unit are provided, so the weight of the seated occupant is automatically detected, and the seat surface tension change of the seat is controlled to improve the seating feeling of the occupant. Can be made.

According to the invention of claim 1, the sheet base material is developed between the first sheet support and the second sheet support to form a sheet, and the third sheet support is Since it is movable between the second sheet supports, the third sheet support that partitions the seating surface width of the sheet formed from the belt-shaped sheet substrate is between the first sheet support and the second sheet support. By being provided so as to be movable, it is possible to provide a seat device capable of adjusting the partition position of the seat surface width according to the physique of the seated person or the preference of the seated person.
Therefore, for example, when there is one seated person, the third sheet support is brought close to one of the first sheet support and the second sheet support arranged on the outer side in the width direction of the sheet base, A seating sheet in a state where the seating surface width is widened can be formed. In addition, when there are a plurality of seated persons, the third seat support is disposed at a predetermined interval between the first seat support and the second seat support, so that the seat seating surface width is made uniform. A seating sheet in a state can be formed. Further, in the case where the seated persons are two persons with different physiques, the first seat support surface is widened between the first seat support and the second seat support, and the other seat seat width is narrowed. By disposing the three-seat support, a seat that matches the physique of the seated person can be formed.

According to the invention of claim 2, in the seating sheet formed from the belt-like sheet base material in a limited space in the vehicle interior, the sheet base material can be wound from at least one side outside the seat width direction. The tension can be adjusted. In particular, by providing a seat take-up shaft on both the first seat support and the second seat support, the seat can be wound from both sides in the seat width direction, and the seating seat tension can be adjusted according to the physique of the occupant or the preference of the occupant. The condition can be finely adjusted.
According to the invention of claim 3, the guide rail supports the third seat support so as to be movable relative to the guide rail and restricts the movement of the third seat support by the lock mechanism. By moving the support along the guide rail, the partition position of the seating surface width of the seating seat can be adjusted, and the seating seat can be stably supported by fixing the third seat support by the lock mechanism. .

According to the invention of claim 4, by using at least one of the first seat support and the second seat support along the guide rail using a limited space in the vehicle interior, the seat can be appropriately Can be widened or narrowed.
According to the invention of claim 5, since the seat take-up shaft is provided not only on the first sheet support and the second sheet support but also on the third sheet support, for example, an occupant seated on the seat When there are a plurality of sheets, the winding tension of the sheet take-up shaft on the third sheet support is appropriately adjusted as compared with the configuration in which the sheet take-up shaft is provided only on the first sheet support and the second sheet support. By doing so, it is possible to adjust the tension of the seat seat surfaces of a plurality of passengers.

According to the invention of claim 6, a plurality of back sheet substrates are provided, and the sheet winding shaft can independently wind the plurality of back sheet substrates. A backrest portion of the seating seat is formed, and the tension of the seating seat can be adjusted in accordance with the part of the seated occupant.
According to the seventh aspect of the present invention, since the seating surface width changing means and the seating surface tension changing means are provided, it is possible to change the support body position and the winding tension by the operation of the occupant.

According to the invention of claim 8, since the occupant posture detection unit and the seating surface width control unit are provided, the physique or posture of the occupant to be seated is automatically detected, and the seating surface width change of the seating seat is controlled. The seat device can improve the seating feeling of the occupant.
According to the ninth aspect of the present invention, since the seat weight detecting unit and the seat surface tension control unit are provided, the weight of the seated occupant is automatically detected, and the seat surface tension change of the seated seat is controlled. The seating feeling can be improved.

It is a perspective view which shows the sheet | seat apparatus which concerns on this invention. It is AA sectional drawing of the sheet | seat support body of the sheet | seat apparatus of FIG. It is guide rail BB sectional drawing of the seat apparatus of FIG. FIG. 2 is a perspective view showing a state in which an occupant is seated on a seating seat of the seat device of FIG. 1. It is a top view which shows the sheet | seat apparatus which shows 2nd Embodiment of this invention. It is a perspective view which shows the sheet | seat apparatus which shows 3rd Embodiment of this invention. It is a block diagram which shows control of the sheet apparatus of 3rd Embodiment. It is a flowchart which shows the seat surface tension control of the seat apparatus of 3rd Embodiment. It is a flowchart which shows the seat surface position control of the seat apparatus of 3rd Embodiment.

  FIG. 1 is a perspective view showing a seat device according to the present invention. 2 is a cross-sectional view taken along line AA of the sheet support of the sheet apparatus of FIG. FIG. 3 is a cross-sectional view of the guide rail BB of the seat device of FIG. 4 is a perspective view showing a state in which an occupant is seated on the seat of the seat device of FIG. FIG. 5 is a plan view showing a sheet apparatus showing a second embodiment of the present invention. FIG. 6 is a perspective view showing a seat device showing a third embodiment of the present invention. FIG. 7 is a block diagram illustrating the control of the seat device according to the third embodiment. FIG. 8 is a flowchart illustrating seat surface tension control of the seat device according to the third embodiment. FIG. 9 is a flowchart illustrating seat surface position control of the seat device according to the third embodiment.

In the present embodiment, a third seat support for partitioning the seating surface width of the seating seat formed from the belt-shaped seat base material is provided in the vehicle interior so as to be movable within the seating seat width, thereby dividing the seating surface width of the seating seat. The present invention relates to an invention of a vehicle seat device characterized in that the position can be adjusted.
As shown in FIG. 1, the seat device 1 of the present embodiment has a belt-like sheet base material 10 that forms a seat for seating an occupant in a vehicle interior, and a seat base 10 that is erected on the vehicle interior floor. A pair of sheet supports 20 that support the sheet base material 10 so as to sandwich the sheet base material 10 in the direction, a sheet take-up shaft 30 that is attached to each seat support body 20 and can wind the sheet base material 10, and a vehicle interior floor And a lower end of each of the seat support 20 and the third seat support 40, and a third seat support 40 that supports the seat base 10 and is fixed to the vehicle interior floor. It is mainly composed of a guide rail 50 that is long in the seating seat width direction and supports the section, and forms a belt-like seating seat on which a passenger sits in the vehicle interior.
In the longitudinal direction of the vehicle, the side on which the occupant is seated with respect to the seat base 10 of the seat device 1 is the front side.

The sheet base material 10 is a base material that forms the seating surface of the seating sheet of the sheet apparatus 1 and is formed of a substantially rectangular long body formed of a stretchable cloth-like body, as shown in FIG. The head sheet base material 11 that supports the head of the occupant seated on the seat, the back sheet base material 12 that supports the back portion of the occupant, and the cushion sheet base material 13 that supports the seat portion of the occupant are mainly used. It is configured.
The sheet base material 10 is wound so as to be drawable from both the left and right sides of the sheet base material 10 by a sheet winding shaft 30 incorporated in each sheet support 20, and is laterally outwardly driven by the urging force of the sheet winding shaft 30. Has been pulled by.
The head sheet base material 11, the back sheet base material 12, and the cushion sheet base material 13 are each formed of a cloth-like body that is independently formed, and in order to improve the seating feeling of the occupant, Adjusted for different tension and breathability.

The seat support 20 is a support member that changes the seating surface width of the seating seat of the seat device 1 and is formed as a support frame having a substantially h-shape, and is arranged on the left side of the vehicle as shown in FIG. The first seat support 20a is provided, and the second seat support 20b is provided on the right side of the vehicle.
As shown in FIG. 2, the seat support 20 is formed by placing a cushion pad 22 on a pipe frame 21 having a substantially circular cross section as a skeleton and covering the cushion pad 22 with a skin 23. Yes.

As shown in FIG. 1, the seat support 20 includes a front leg support part 24, a rear leg support part 25, a front leg support part 24 and a rear leg, which are erected on the vehicle interior floor at a predetermined interval in the front-rear direction. A cushion support portion 26 connected to the upper end portion of the support portion 25, and a back support portion 27 connected to the rear end portion of the cushion support portion 26 and inclined slightly rearward from the vertical direction of the cushion support portion 26. Has been.
A sheet take-up shaft 30 is embedded in the sheet support 20, and the sheet take-up shaft 30 is configured so that the sheet base material 10 can be pulled out from slits 28 provided on the left and right inner surfaces of the sheet support 20. Has been.
Lower end portions of the front leg support portion 24 and the rear leg support portion 25 are connected to a guide rail 50 attached to the vehicle interior floor, and the seat support 20 can be moved relative to the guide rail 50 in the left-right direction. Mechanism.

The sheet base material 10 drawn out by the sheet take-up shaft 30 incorporated in the first sheet support 20a and the second sheet support 20b is developed between the first sheet support 20a and the second sheet support 20b. Thus, a seating sheet can be formed.
A side airbag (not shown) is attached to the left and right outer surfaces of the cushion support portion 26 of each seat support 20, and the side airbag is deployed upward in the event of a side collision of the vehicle. With such a configuration, it is possible to reduce the lateral movement of the seated occupant.

The sheet winding shaft 30 is a winding body that changes the seating surface tension of the seating sheet of the sheet apparatus 1 and is formed as a long, substantially cylindrical body.
A non-illustrated mainspring spring is mounted on the sheet winding shaft 30, and the sheet winding shaft 30 biases the sheet base material 10 in the winding direction by the elastic force of the spring.

As shown in FIG. 2, the sheet take-up shaft 30 is embedded in the seat support 20 and is provided around the outer surface of the pipe frame 21. As shown in FIG. A head sheet winding shaft 31 disposed inside, a back sheet winding shaft 32 disposed inside a lower portion of the back support portion 27, a cushion sheet winding shaft 33 disposed within the cushion support portion 26, and It is composed of
Further, the back sheet take-up shaft 32 includes a back sheet take-up shaft 32a and a waist sheet take-up shaft 32b in the vertical direction.
Each of the left and right head sheet take-up shafts 31 draws out the head sheet base material 11 between the left and right sheet support bodies 20 so that the head sheet base material 11 can be taken up. The cushion sheet take-up shafts 33 on both the left and right sides can be drawn out so that the cushion sheet can be taken up.

The left and right sheet take-up shafts 30 can be taken up independently of each other, and are configured to take up the sheet base material 10 so as to attract each other to the left and right sides.
Therefore, each seat take-up shaft 30 can adjust the seating surface tension of the seating seat by winding up the sheet base material 10 from both the left and right sides of the seated occupant when the occupant is seated on the seating seat. A seating seat that wraps an occupant from the outside to the inside in the seat width direction can be formed. The occupant can sit in a state wrapped in a seating seat, and the occupant can obtain a sense of security due to an appropriate sense of distance and an appropriate feeling of obstruction.
In addition, among the respective sheet take-up shafts 30, each head sheet take-up shaft 31, each back sheet take-up shaft 32, and each cushion sheet take-up shaft 33 are respectively independent of the head sheet base material 11, the back sheet base. Since the material 12 and the cushion sheet base material 13 can be wound around the left and right outer sides, the seating surface tension of the seating seat can be finely adjusted according to the number of passengers, the physique and posture of the passengers, or the preference of the passengers. Can do.

The third seat support 40 is a support member that changes the partition position of the seating surface width of the seating seat of the seat device 1 and is formed as a support frame having a substantially h-shape, as shown in FIG. The first sheet support 20a and the second sheet support 20b are movably disposed.
As shown in FIG. 2, the third seat support 40 is formed by placing a cushion pad 42 on a pipe frame 41 having a substantially circular cross section as a skeleton and covering the cushion pad 42 with a skin 43. Has been.

The third seat support 40 includes a front leg support part 44, a rear leg support part 45, and a position above the front leg support part 44 and the rear leg support part 45 that are erected on the vehicle interior floor at a predetermined interval in the front-rear direction. The cushion support portion 46 is connected to the end portion, and the back support portion 47 is connected to the rear end portion of the cushion support portion 46 and tilted slightly rearward from the vertical direction of the cushion support portion 26.
Lower end portions of the front leg support portion 44 and the rear leg support portion 45 are connected to a guide rail 50 attached to the vehicle interior floor, and the third seat support body 40 is relative to the guide rail 50 in the left-right direction. It is a movable mechanism.

As shown in FIG. 2, a pair of third sheet take-up shafts 48 are arranged in parallel with each other in the left-right direction inside the third sheet support 40 and on the front side of the pipe frame 41. Each of the third sheet take-up shafts 48 can draw out the sheet base material 10 drawn out between the first sheet support 20a and the second sheet support 20b so that it can be taken up.
More specifically, each third sheet take-up shaft 48 can accommodate the sheet base material 10 so that it can be pulled out and taken up from slits 49 provided on the left and right inner surfaces of the third sheet support 40.

The left third sheet winding shaft 48a on the left side and the sheet winding shaft 30 of the first sheet support 20a can be wound independently of each other so that the sheet base material 10 is attracted to the left and right outside. It has a configuration for winding.
The right third sheet winding shaft 48b on the right side and the sheet winding shaft 30 of the second sheet support 20b can be wound independently of each other so that the sheet base material 10 is attracted to the left and right outer sides. It is configured to wind up.
Therefore, when the occupant sits on the seating seat, the seat base tension of the seating seat can be finely adjusted by winding the seat base material 10 so as to attract each other from both the left and right sides of the seated occupant. A seating seat that wraps the occupant from the outside to the inside in the direction can be formed. An occupant can be seated while being wrapped in a seating seat, and a sense of security can be obtained.

  Note that side airbags (not shown) are attached to the left and right outer surfaces of the cushion support portion 46 of the third seat support 40, and the side airbags are deployed upward in the event of a side collision of the vehicle. By configuring as described above, it is possible to reduce the lateral movement of the seated occupant.

The guide rail 50 is a well-known slide rail that movably supports each seat support 20 and the third seat support 40 of the seat device 1 and is fixed in the vehicle lateral direction as shown in FIG. 3 mainly includes a rail 51, a slider 52 that is slidably mounted on the fixed rail 51, and a guide 53 shown in FIG. 3 fitted between the fixed rail 51 and the slider 52.
The fixed rail 51 is formed of a substantially U-shaped cross section formed of a metal material or the like, and is arranged in a pair with a predetermined interval in the front-rear direction, and an opening is formed in the approximate center of the upper surface of the fixed rail 51. ing. A slider 52 is inserted into the storage chamber inside the fixed rail 51.

The slider 52 is formed of a substantially convex body that is formed of a metal material and is elongated in the left-right direction, and the lower portion of the slider 52 is inserted into the accommodation chamber of the fixed rail 51 as shown in FIG. In addition, the upper portion of the slider 52 is configured to be exposed from the opening of the fixed rail 51.
The upper part of the slider 52 is integrally connected to the pipe frame 21 at the lower end of the seat support 20. The upper portion of the slider 52 is integrally connected to the pipe frame 41 at the lower end of the third sheet support 40.

As shown in FIG. 3, a guide 53 is fitted between the front and rear wall portions of the fixed rail 51 and the lower portion of the slider 52, and the guide 53 moves the slider 52 in the left-right direction with respect to the fixed rail 51. The fixed rail 51 and the slider 52 are supported so as to be slidable.
The guide rail 50 is configured to include a lock mechanism (not shown) that can fix the slider 52 to the fixed rail 51 at a predetermined left and right position.

As the slider 52 moves relative to the fixed rail 51 in the left-right direction, each sheet support 20 and the third sheet support 40 integrated with the slider 52 can move in the left-right direction.
As each seat support 20 moves in the left-right direction, the seating surface width of the seating seat can be changed. Further, as the third seat support 40 moves in the left-right direction, the partition position of the seating surface width of the seating seat can be changed.

  For example, when two seated passengers have different physiques, as shown in FIG. 4, the seat apparatus 1 includes a third seat support between the first seat support 20 a and the second seat support 20 b. 40 is moved and arranged on the first sheet support 20a side to form a seating sheet having a narrow seat seat width between the first sheet support 20a and the third sheet support 40, and the first sheet A seat with a wide seat seat surface width can be formed between the support 20b and the third seat support 40, and a seat according to the occupant's physique can be formed.

Next, the seating surface width changing means for changing the seating surface width of the seating seat of the seat device 1 will be described.
As shown in FIG. 4, the seat device 1 can change the seating surface width of the seating seat by changing the position of each seat support 20 and changing the position of the third seat support 40.
Specifically, the seat support 20 can change the seating surface width of the seating seat by moving integrally with the slider 52 in the left-right direction relative to the fixed rail 51.
The position change of each seat support 20 may be directly operated by an occupant, or may be operated using an operation lever (not shown) or the like.

The third seat support 40 can change the partition position of the seating surface width of the seating seat by moving integrally with the slider 52 and moving relative to the fixed rail 51 in the left-right direction.
The position change of the third seat support 40 may be directly operated by an occupant or may be operated using an operation lever (not shown) or the like.
The seat device 1 changes the seating surface width of the seating seat by manual operation of the occupant, but is not limited thereto, and each seat support 20 is controlled by a control unit (not shown) provided in the passenger compartment. Further, the position change of the third sheet support 40 may be remotely controlled and operated with a one-touch button.

Next, the seat surface tension changing means for changing the seat surface tension of the seating seat of the seat device 1 will be described.
In the sheet apparatus 1, as shown in FIG. 4, the seating surface tension of the seating sheet can be changed by changing the winding tension of the sheet winding shaft 30 and the third sheet winding shaft 48.
Specifically, the sheet take-up shaft 30 and the third sheet take-up shaft 48 change the tension of the sheet base material 10 drawn from the sheet take-up shaft 30 to change the tension of the sheet base material 10. As a result, the seating surface tension of the seating seat can be changed.
The change of the take-up tension of the sheet take-up shaft 30 and the third sheet take-up shaft 48 is preferably operated by the occupant using a known dial adjustment type actuator (not shown).
The seat device 1 is operated to change the tension of the seating seat by manual operation of the occupant. However, the seat device 1 is not limited to this, and a control unit (not shown) provided in the passenger compartment of the seat winding shaft 30 is operated. A configuration may be adopted in which winding is remotely controlled and operated with a one-touch button.

Next, the tension and air permeability of the sheet base material 10 will be described with reference to FIG.
Of the sheet base material 10, the tension of the head sheet base material 11 is formed to be higher than the tension of the back sheet base material 12 and the cushion sheet base material 13. Therefore, the head sheet substrate 11 can sufficiently support the head of the occupant seated.
The back sheet base 12 is composed of a back sheet base 12a and a waist sheet base 12b in the vertical direction, and the tension of the waist sheet base 12b is higher than the tension of the back sheet base 12a. Is formed. Therefore, the waist part base material 12b with high tension can reliably support the waist part of the occupant seated, and the back part sheet base material 12a with low tension can softly support the back part of the occupant.

The cushion sheet base material 13 includes a thigh part 13a and a heel part 13b in the front-rear direction, and the tension of the heel part 13b is formed to be higher than the tension of the thigh part 13a. Therefore, the high-tensioned buttock 13b can reliably support the occupant's buttock that is seated, and the low-tensioned thigh 13a can softly support the occupant's thigh.
The tension of the sheet base material 10 is adjusted for each region by sewing a plurality of cloth-like bodies on top of each other, changing the thread thickness and knitting method of the cloth-like bodies, or giving stitches. It is possible.

The air permeability of the head sheet base material 11 is formed to be lower than the air permeability of the back sheet base material 12 and the cushion sheet base material 13. Therefore, the head sheet base material 11 can improve the heat retaining properties around the head of the seated passenger.
The back sheet substrate 12 is formed so that the air permeability of the waist sheet substrate 12b is higher than that of the back sheet substrate 12a. Therefore, the waist sheet base material 12b can enhance the air permeability around the waist where the occupant is likely to sweat.
The cushion sheet base material 13 is formed so that the air permeability of the heel part 13b is higher than that of the thigh part 13a. Therefore, the heel part 13b can improve the air permeability around the heel part where the occupant easily sweats.
The air permeability of the sheet base material 10 can be adjusted for each part by overlapping and sewing a plurality of cloth-like bodies, changing the thread density of the cloth-like bodies, or forming punching. Is possible.

Next, the sheet apparatus 2 according to the second embodiment of the present invention will be described based on FIG.
The seat device 2 according to the second embodiment is characterized in that the seating seat is formed in a substantially semicircular shape.
As shown in FIG. 5, the guide rail 60 is a substantially semi-circular slide rail that movably supports each sheet support 20 and the third sheet support 40 of the seat device, and is substantially semi-circular. It is mainly composed of a fixed rail 61 that is long in shape, a slider 52 that is slidably mounted on the fixed rail 61, and a guide 53 that is fitted between the fixed rail 61 and the slider 52.
The guide rail 60 is configured to include a locking mechanism (not shown) that can fix the slider 52 to the fixed rail 61 at a predetermined position in the fixed rail longitudinal direction.

As the slider 52 moves relative to the fixed rail 61, each sheet support 20 and third sheet support 40 integrated with the slider 52 can move in the fixed rail longitudinal direction.
As each seat support 20 moves in the fixed rail longitudinal direction, the seating surface width of the seating seat can be changed. Further, as the third seat support 40 moves in the fixed rail longitudinal direction, the partition position of the seating surface width of the seating seat can be changed.

Next, a seat device 3 according to a third embodiment of the present invention will be described based on FIG.
In the seat device 3 according to the third embodiment, a seat weight detection sensor 70 is attached to each of the seat supports 20 and the third seat support 40 and an occupant posture detection sensor 80 is built in the seat base 10. It is what.
The seat weight detection sensor 70 corresponds to a seat weight detection unit in the claims, and the occupant posture detection sensor 80 corresponds to an occupant posture detection unit in the claims.
The seat weight detection sensor 70 is a sensor that detects the weight of an occupant seated on the seat, and transmits a detection signal to a seat surface tension control unit 71 (not shown) when the occupant is seated on the seat. It has become.
The seat surface tension control unit 71 controls the winding tension of the sheet winding shaft 30 and the third sheet winding shaft 48 based on the detection signal of the sheet weight detection sensor 70.
That is, in the seat device 3, as shown in the block diagram of FIG. 7, the seat surface tension control unit 71 drives the seat surface tension changing means based on the detection signal of the seat weight detection sensor 70, and this seat surface tension change is performed. The means changes the winding tension of the sheet winding shaft 30 and the third sheet winding shaft 48.
As a result, the seating surface tension of the seating seat of the seat device 3 can be changed according to the weight of the seated passenger.

The occupant posture detection sensor 80 is a sensor that detects the physique or posture of the occupant seated on the seat, and transmits a detection signal to a seating surface width controller 81 (not shown) when the occupant is seated on the seat. It is the composition to do.
The seating surface width control unit 81 controls the seating surface width of the seating seat based on the detection signal of the occupant posture detection sensor 80.
That is, in the seat device 3, as shown in the block diagram of FIG. 7, the seat surface width control unit 81 drives the seat surface width changing means based on the detection signal of the occupant posture detection sensor 80, and this seat surface width change is performed. The means will perform the movement of each sheet support 20 and third sheet support 40.
As a result, the seating surface width of the seating seat of the seat device 3 can be changed in accordance with the physique or posture of the seated passenger.

Next, an example of the control for detecting the weight of the seated occupant and driving the seat surface tension changing means will be described as the seat surface tension control of the seat device 3 based on the flowchart of FIG.
As shown in FIG. 10, the seating surface tension control of the seat device 3 first determines whether or not the occupant is seated on the seat (ST01).
Specifically, whether or not the occupant is seated on the seat is determined based on whether or not the seat weight detection sensor 70 can detect the weight of the occupant seated on the seat. If Yes, the process proceeds to the next step (ST02). If No, the process returns to ST01.

Next, the seat weight detection sensor 70 detects the weight of the seated occupant, and the seat surface tension control unit 71 stores the detection signal of the seat weight detection sensor 70 (ST02).
Thereafter, the seating surface tension control unit 71 refers to the seating surface tension setting information stored in advance, and determines whether or not the seating surface tension of the seating seat is appropriate (ST03). In the case of Yes, the bearing surface tension control is completed, and in the case of No, the process proceeds to ST04.
Next, the seating surface tension control unit 71 refers to the sheet seating surface tension setting information and changes the winding tension of the sheet winding shaft 30 and the third sheet winding shaft 48 (ST04). Thereafter, the process returns to ST03.
Through the series of steps described above, the seat device 3 can automatically detect the weight of the occupant seated on the seat and control the change in the seating surface tension of the seat, thereby improving the seating feeling of the occupant.

Next, an example of control for detecting the physique or posture of a seated occupant and driving the seating surface width changing means will be described as seating surface width control of the seat device 3 based on the flowchart of FIG.
As shown in FIG. 11, the seat surface width control of the seat device 3 first determines whether or not the occupant is seated on the seat (ST01).
Specifically, it is determined whether or not the occupant is seated on the seat by whether or not the occupant posture detection sensor 80 can detect the physique or posture of the occupant seated on the seat. If Yes, the process proceeds to the next step (ST02). If No, the process returns to ST01.

Next, the occupant posture detection sensor 80 detects the physique or posture of the seated occupant, and the seat surface width control unit 81 stores the detection signal of the occupant posture detection sensor 80 (ST02).
Thereafter, the seating surface width control unit 81 refers to the seat seating surface width setting information stored in advance, and determines whether or not the seating surface width of the seating seat is appropriate (ST03). If Yes, the seating surface width control is completed, and if No, the process proceeds to ST04.
Next, the seating surface width control unit 81 refers to the seat seating surface width setting information, and sequentially changes the position of each sheet support 20 and the position of the third sheet support 40 (ST04). Thereafter, the process returns to ST03.
Through the above-described series of steps, the seat device 3 can automatically detect the physique or posture of the occupant to be seated, can control the seat surface position change of the seat, and can improve the seating feeling of the occupant.

  Although the sheet base material 10 of the said embodiment is formed from the cloth-like body, it can change suitably, without being limited to this. For example, by separately sewing an optical fiber on the cloth-like body of the sheet base material 10, it is possible to form a seating seat that can change the color of the seat seating surface according to the passenger's preference. Further, by forming the sheet base material 10 partially or entirely as a projection film, the design of the seat surface can be improved in accordance with the preference of the occupant.

The seat base 10 of the above embodiment is deployed in the left-right direction of the vehicle interior to form a seating seat, but may be configured to be deployed in the front-rear direction of the vehicle interior to form the seating seat.
In addition, the sheet base material 10 is configured independently of the head sheet base material 11, the back sheet base material 12, and the cushion sheet base material 13. , And the cushion sheet substrate 13 may be configured simply as a single sheet substrate.

  Each sheet support 20 and third sheet support 40 of the above embodiment is formed as a support frame having a substantially h-shape, but the sheet support 20 is not limited to this shape, and each sheet support 20 is a sheet base. The shape can be supported so as to sandwich the material 10, and the third sheet support 40 can be moved between the sheet supports 20 and can be appropriately changed as long as the shape can support the sheet base material 10. It is. Each seat support 20 and third seat support 40 is formed by placing cushion pads 22 and 42 on pipe frames 21 and 41 and covering them with skins 23 and 43, but can be changed as appropriate. For example, it may be formed simply from a pipe frame.

  The first sheet support 20a and the second sheet support 20b of the above embodiment incorporate the sheet take-up shaft 30, but the first sheet support 20a and the second sheet are not limited thereto. It is sufficient that the sheet take-up shaft 30 is built in at least one of the supports 20b. Further, the third sheet take-up shaft 48 is built in the third sheet support body 40 of the above embodiment, but the present invention is not limited to this, and the third sheet take-up shaft 48 is not required. Also good.

Each cushion support portion 26 of each seat support body 20 of the above embodiment is not configured to be movable in the vertical direction. For example, each cushion support portion 26 is provided with a known pantograph mechanism so as to move up and down. It may be configured to be movable. By constituting in this way, each cushion support part 26 can move the cushion sheet base material 13 of the seat base material 10 up and down, and as a result, the tension of the cushion sheet base material 13 with respect to the seated occupant It becomes possible to adjust the condition.
Similarly, each back support portion 27 may be configured to be movable back and forth by separately providing a known pantograph mechanism. By comprising in this way, each back support part 27 can move the back seat | sheet base material 12 back and forth, As a result, adjusting the tension | tensile_strength of the back seat | sheet base material 12 with respect to the passenger | crew who seats Is possible.

  In the seat devices 1, 2, and 3 of the above embodiment, the belt-like sheet base material 10 is developed between the first sheet support 20a and the second sheet support 20b on the passenger compartment floor to form a seating seat. However, the seating seat can be folded in a compact manner by moving the first seat support 20a and the second seat support 20b closer to each other. At this time, the seating seat may be folded on the vehicle interior floor side by a known method so that it can be stored more compactly. With this configuration, a sufficient space can be secured in the passenger compartment, and the seated passenger can use the seat by pulling it out from the storage location as necessary.

In the seat devices 1 and 3 of the above-described embodiment, one third seat support 40 is provided between the seat supports 20, but the third seat support 40 may be provided depending on the number of seated passengers. The sheet support 40 may have a structure that can be divided into two in the left-right direction. By comprising in this way, it becomes possible to utilize as a seating seat for three persons.
When the third sheet support 40 is divided in the left-right direction, the seat base 10 can be developed between the divided third sheet supports 40 to form a seating sheet, and the seating surface of the seating sheet It is desirable to provide a sheet take-up shaft on at least one of the divided parts of the third sheet support 40 so that the tension can be changed.

In the seat devices 1, 2, and 3 of the above-described embodiment, each seat support 20 is erected on the vehicle interior floor, but the first seat support 20a is not limited to this, and the vehicle interior left You may comprise so that it may be attached to the door part or pillar part of a side side, and the 2nd seat support body 20b may be attached to the door part or pillar part of the vehicle interior right side side.
At this time, the third seat support 40 is movable between the seat supports 20 and can adjust the partition position of the seat seat surface width of the seating seat. In addition, a structure that can be divided into two in the left-right direction may be provided.
In addition, when it is desired to secure a space in the vehicle interior, it is preferable that all the sheet base material 10 is wound on one side of each sheet support 20 and the third sheet support 40 is moved to one side. Furthermore, when there is one seated passenger and wants to secure a space in the passenger compartment, the seat base 10 is expanded from one of the seat supports 20 to the third seat support 40 to form a seated seat, It is preferable that a storage space be secured between the other of the sheet supports 20 and the third sheet support 40.

In the sheet apparatus 3 according to the third embodiment, the seating surface tension control unit 71 changes the winding tension of each of the sheet winding shafts 30 and the third sheet winding shaft 48, but the present invention is not limited thereto. Without changing, it is possible to simply change the winding tension of each sheet winding shaft 30.
Further, the seating surface width control unit 81 sequentially executes the position change of each sheet support body 20 and the position change of the third sheet support body 40. However, the present invention is not limited to this, and the third sheet support is simply performed. Only the position change of the body 40 may be executed.

  In the seat device 3 according to the third embodiment, the seat weight detection sensor 70 and the occupant posture detection sensor 80 are attached. However, the seat device 3 is not limited to this and can be appropriately changed and is seated. A seat position sensor that detects the seating position of the occupant, a pressure sensor that can measure the body pressure of the seated occupant for each part, and a capacitance sensor that detects the seating state of the seated occupant are separately attached to the seating seat, The seating surface position and seating surface tension of the seating seat may be controlled by the control unit.

  In each of the above embodiments, a vehicle seat device used for an automobile has been described as a specific example. However, the present invention is not limited to this, and in addition to vehicle seat devices such as trains and buses, vehicle seat devices such as airplanes and ships It can also be used as a device. In addition to a vehicle seat device, the present invention can also be used as a seat device widely used indoors or outdoors in commercial facilities such as movie theaters and planetariums, public facilities such as hospital waiting rooms.

In the present embodiment, the sheet apparatus according to the present invention has been mainly described.
However, said embodiment is only an example for making an understanding of this invention easy, and does not limit this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.
In particular, the configuration described in the above embodiment for the configuration in which the third sheet support 40 that divides the seating surface width of the seating sheet formed from the belt-shaped sheet base material 10 is movable within the seating sheet width, It is only an example and does not limit the present invention.

1, 2, 3 Sheet device 10 Sheet substrate 11 Head sheet substrate 12 Back sheet substrate 12a Back sheet substrate 12b Lumbar sheet substrate 13 Cushion sheet substrate 13a Thigh 13b Lumbar 20 Sheet support 20a First sheet Support 20b Second seat support 21 Pipe frame 22 Cushion pad 23 Skin 24 Front leg support 25 Rear leg support 26 Seat support 27 Back support 28 Slit 30 Seat take-up shaft 31 Head seat take-up shaft 32 Back seat wind Rotating shaft 33 Cushion seat winding shaft 40 Third seat support body 41 Pipe frame 42 Cushion pad 43 Skin 44 Front leg support portion 45 Rear leg support portion 46 Seating support portion 47 Back support portion 48 Third seat winding shaft 48a Left third Sheet take-up shaft 48b Right third sheet take-up shaft 49 Slit 50 Doreru 51 fixed rail 52 slider 53 guide 54 connecting portion 60 the guide rail 61 fixed rail 70 seat weight sensor 71 seating surface tension control unit 80 occupant attitude detection sensor 81 seating surface width control unit

Claims (9)

A belt-like sheet base material forming a seat on which a seated person sits;
A first sheet support and a second sheet support that are disposed so as to sandwich the sheet base in the width direction of the sheet base, and support the sheet base;
A third sheet support disposed between the first sheet support and the second sheet support and supporting the sheet substrate;
The sheet substrate is deployed between the first sheet support and the second sheet support to form the sheet;
The sheet apparatus, wherein the third sheet support is movable between the first sheet support and the second sheet support. The seat base material forms the seat on which an occupant sits in a passenger compartment,
At least one of the first sheet support and the second sheet support includes a sheet take-up shaft,
The sheet apparatus according to claim 1, wherein the sheet winding shaft is capable of winding the sheet base material. A guide rail having a locking mechanism laid in the passenger compartment is provided.
The guide rail supports the third seat support so as to be movable relative to the guide rail, and restricts the movement of the third seat support by the lock mechanism. The sheet apparatus according to 2. Supporting at least one of the first sheet support and the second sheet support so as to be relatively movable with respect to the guide rail, and restricting the movement of the at least one by the lock mechanism;
The sheet apparatus according to claim 3, wherein the at least one of the at least one can change the width of the sheet with the movement of the at least one.   The sheet device according to any one of claims 1 to 4, wherein the third sheet support includes a third sheet winding shaft capable of winding the sheet base material. The sheet base material includes a back sheet base material that supports a backrest portion of a seated passenger,
A plurality of the backsheet substrates are provided,
The sheet apparatus according to any one of claims 2 to 5, wherein the sheet winding shaft is capable of independently winding a plurality of the back sheet base materials. A seating surface width changing means for changing the seating surface width of the seat;
The seat device according to any one of claims 2 to 6, further comprising a seat surface tension changing unit that changes a seat surface tension of the seat. An occupant posture detection unit for detecting the physique or posture of a seated occupant;
The seat device according to claim 7, further comprising: a seating surface width control unit that drives the seating surface width changing unit based on a detection signal of the occupant posture detection unit. A seat weight detector for detecting the weight of a seated occupant;
The seat device according to claim 7, further comprising: a seat surface tension control unit that drives the seat surface tension changing unit based on a detection signal of the seat weight detection unit.

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