Interior trim product

Abstract

To enable a target area of an outer shape of a design surface of an interior trim product to be properly deformed.SOLUTION: An interior trim product allows an outer shape of a design surface as an exterior appearance to be changed by moving the shape using a movable mechanism 20. The movable mechanism 20 includes: a plurality of expansion members (first expansion members 21) which are arranged to extend in a surface direction of the design surface; and a pair of support parts 30 which support both ends in an extending direction of the respective expansion members (21). The plurality of expansion members (21) are disposed arrayed on a planar area of the design surface between the pair of support parts 30, and configured so that linear dimensions in the extending direction thereof are varied by inflow and outflow of liquid.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an interior fitting provided in a vehicle interior, a house interior, or the like. [Background technology]

[0002] A technology related to this type of interior equipment is disclosed in Patent Document 1. Patent Document 1 discloses a seat device with a massage function and a seat support function as one type of interior equipment. The seat device has a seating surface (design surface) formed of a skin, and a plurality of air bags are arranged on the back side of the skin. Each of the plurality of air bags is formed into a substantially circular or rectangular shape in a plan view, and can be inflated toward the seating side by the inflow of air. The seat back has air bags arranged at appropriate intervals on the top, bottom, left and right sides, and the seat cushion has air bags arranged at appropriate intervals on the front, back, left and right sides. With the above-mentioned technology, the occupant can be massaged by inflating or deflating each air bag to press (acupressure) the occupant. Also, by greatly inflating only the air bags on the sides of the seat, the supportability of the occupant's sides can be improved. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6404870 Summary of the Invention [Problem to be solved by the invention]

[0004] In the field of interior products, there is a demand to appropriately deform the external shape of the design surface according to the situation. For example, in the field of vehicles, at least a part of the seating surface of the seat is deformed in a planar manner to match the physique of the seated occupant, thereby contributing to the seating comfort and comfort of the occupant. In addition, in various interior products installed in vehicle cabins, houses, etc., it is desirable to be able to deform the shape of the design surface in a planar manner to match the preferences of the person. However, when the above-mentioned air bag is used, the deformation of the seating surface is localized due to the relationship between the size and position, etc., and it is difficult to appropriately deform the entire desired area. The present invention has been devised in consideration of the above points, and the problem to be solved by the present invention is to more appropriately deform the external shape of the design surface of the interior product in a targeted area. [Means for solving the problem]

[0005] As a means for solving the above problem, in the interior part of the first invention, the shape of the design surface that forms the exterior of the interior part can be changed by moving the movable mechanism. In this type of configuration, it is desirable to more appropriately deform the external shape of the design surface of the interior part in a targeted area. Therefore, the movable mechanism of the present invention has a plurality of elastic members provided to extend in the planar direction of the design surface, and a pair of support parts that support both ends in the extending direction of the plurality of elastic members. The plurality of elastic members are arranged in a planar area of ​​the design surface provided between the pair of support parts, and are configured so that the length dimensions in the extending direction of each of them change depending on the inflow and outflow of fluid. In the movable mechanism of the present invention, the plurality of elastic members are arranged in a planar area that forms at least a part of the design surface. By changing the length dimensions of each elastic member, the shape of the area formed between the pair of support parts can be changed planarly (for example, from flat to curved). Thus, in the present invention, the plurality of elastic members are arranged in the design surface portion (targeted area) provided between the pair of support parts, and the length dimensions are appropriately changed, so that the shape of the appropriate part of the design surface can be changed overall.

[0006] The interior accessory of the second invention is the interior accessory of the first invention, in which the movable mechanism has a detection unit that detects changes in the conditions in the room in which the interior accessory is installed, and a control unit that extends or shortens at least one of the multiple expandable members based on information obtained from the detection unit. In this invention, the detection unit and the control unit make it possible to change the length dimension of the expandable member in response to changes in the conditions in the room, and to change the design surface of the interior accessory to a more appropriate shape. Examples of changes in the conditions in the room include changes in the conditions caused by the movement of the room itself or the movement of the interior accessory, changes in the conditions caused by an object entering the room, changes in the conditions caused by an object coming into contact with the interior accessory, and changes in the conditions caused by the movement of an object that has come into contact with the interior accessory.

[0007] The interior part of the third invention is the interior part of the first invention, in which the vehicle seat as the interior part has a seating surface as a design surface, and has a plurality of first telescopic members provided to extend in the surface direction of the seating surface and a plurality of second telescopic members provided on one side of the seating surface in the seat width direction as a plurality of elastic members, and is configured to gradually protrude toward the seating surface as the second telescopic members shorten. In this invention, the shape of the seating surface of the vehicle seat can be changed by the action of the first telescopic members. Furthermore, in the above configuration, the second telescopic members arranged on one side of the seat width direction are shortened to protrude toward the seating surface, so that the side shape of the seating surface can be changed as necessary.

[0008] The interior trim of the fourth invention is the interior trim of the third invention, in which the movable mechanism has a detection unit that detects at least one of the movement of the vehicle seat, the physique of the seated occupant, and the movement of the occupant as changes in the situation inside the vehicle cabin, and a control unit that extends or shortens at least one of the multiple telescopic members based on information obtained from the detection unit. In this invention, the length dimension of the telescopic member can be changed according to the movement (tilt, etc.) of the vehicle seat and the physique and movement of the occupant, making it possible to more appropriately change the seating surface shape of the vehicle seat. Examples of the movement of the occupant here include the seating movement of the occupant, changes in the posture of the seated occupant, and the movement of the occupant when operating the vehicle.

[0009] The interior part of the fifth invention is the interior part of the third or fourth invention, which is provided with a first region where the multiple first telescopic members extend or contract in conjunction with each other, and a second region where the multiple first telescopic members extend or contract independently. In this invention, the shape of the seating surface can be changed uniformly in the first region, and the shape of the seating surface can be changed finely in the second region. Effect of the Invention

[0010] According to the first aspect of the present invention, the outer shape of the design surface of the interior part can be deformed more appropriately in a targeted area. According to the second aspect of the present invention, the outer shape of the design surface of the interior part can be deformed even more appropriately in a targeted area. According to the third aspect of the present invention, the outer shape of the seating surface of the vehicle seat can be deformed more appropriately in a targeted area. According to the fourth aspect of the present invention, the outer shape of the seating surface of the vehicle seat can be deformed even more appropriately in a targeted area. And according to the fifth aspect of the present invention, the outer shape of the seating surface of the vehicle seat can be deformed even more appropriately in a targeted area. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view of a vehicle seat. [Diagram 2] FIG. 2 is a front view of the vehicle seat with the seat back viewed from the front. [Diagram 3] FIG. [Figure 4] FIG. 11 is a top view of the seat back showing the first telescopic member in a reference state. [Diagram 5] FIG. 4 is a partially cutaway perspective view of a first telescopic member. [Figure 6] FIG. 4 is an enlarged perspective view of the seat back showing the bracket. [Figure 7] FIG. 2 is a perspective view of a lower part of the vehicle seat showing a detection unit. [Figure 8] FIG. [Figure 9] FIG. [Figure 10]1 is a top view of the vehicle seat in a state in which a first telescopic member is contracted. FIG. [Figure 11] FIG. 4 is a top view of the vehicle seat in a state in which the second elastic member is extended. [Figure 12] FIG. 13 is a top view of a narrow seat back according to the second embodiment. [Figure 13] FIG. 13 is a top view of a wide seat back of the second embodiment. [Figure 14] FIG. 13 is a top view of a narrow seat back according to the third embodiment. [Figure 15] FIG. 13 is a top view of a wide seat back of the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to Figs. 1 to 15. In each figure, arrows indicating the front-rear, up-down, and left-right directions of the vehicle seat are appropriately illustrated. In each figure, the structure behind the seat sensor is illustrated in perspective, and only the outer shape of the seat sensor is illustrated by a dashed line. In each figure, the first telescopic member is denoted by the reference symbol 20 indicating the movable mechanism for convenience.

[0013] [Outline of vehicle seats (an example of interior products)] Before describing the movable mechanism 20, an outline of a vehicle seat 2, which is an example of an interior accessory, will be described first. The vehicle seat 2 shown in FIG. 1 is a vehicle interior accessory on which an occupant (not shown) can sit, and includes a seat cushion 4 that supports the lower body of the occupant, and a seat back 6 that supports the upper body of the occupant. The lower part of the seat back 6 is connected to the rear part of the seat cushion 4. Upper rails 9a are attached to the lower part of the seat cushion 4 on both sides (left and right) in the seat width direction. The left and right upper rails 9a are slidably assembled to left and right lower rails 9b, and the left and right lower rails 9b are attached to the floor surface of the vehicle and extend in the front-rear direction of the vehicle. As a result, the vehicle seat 2 to which the upper rails 9a are fixed can slide along the left and right lower rails 9b in the front-rear direction of the vehicle.

[0014] In the vehicle seat 2 shown in FIG. 1, an upper seating surface 6A is formed on the front surface of the seat back 6 as a design surface that defines the vehicle seat's appearance. Also, a lower seating surface 4A is formed on the upper surface of the seat cushion 4 as a design surface that defines the vehicle seat's appearance. In this type of seat configuration, there is a demand for the outer shape of each seating surface 4A, 6A, which is the design surface, to be deformed according to the situation. For example, by deforming at least a part of the seating surface of the seat in planar form according to the physique of the seated occupant, the configuration contributes to the seating comfort and comfort of the occupant. Therefore, in this embodiment, the outer shape of each seating surface 4A, 6A of the vehicle seat 2 is more appropriately deformed in a targeted area by a movable mechanism 20 described later. Hereinafter, the configuration will be described in detail, mainly using the seat back 6 as an example.

[0015] [Seat back] 1 to 3, the seat back 6 is formed in a vertically long rectangular shape in front view, and has frame parts (11 to 15) forming a skeleton and a movable mechanism 20 described later. The seat back 6 has, as its frame parts, a plurality of vertical frame parts (11 to 14, described in detail later) and a plurality of horizontal frame parts (15) as shown in FIG. 3. Here, the horizontal frame part 15 can be provided in a plurality or a single part at an appropriate position in the height direction of the seat as shown in FIG. 3, and for example, an upper end frame part 15 as the frame part is provided at the upper end position of the seat (for convenience, in FIG. 3, the reference numeral 15 indicating the other horizontal frame parts is given in parentheses). The upper end frame part 15 is formed in a columnar shape (such as a pipe shape) or a plate shape, and is bent so as to be approximately trapezoidal with a convex rearward shape in top view as shown in FIG. 4. In the upper frame portion 15, the right inclined side portion 16 on the right side and the left inclined side portion 17 on the left side are inclined in directions that gradually move apart toward the front of the seat. The right inclined side portion 16 on the right side and the left inclined side portion 17 on the left side are connected at their rear ends by a rear side portion 18 that extends in the seat width direction.

[0016] 3 and 4, the seat back 6 has a right end frame portion 11, a left end frame portion 12, a right rear frame portion 13 and a left rear frame portion 14 as vertically oriented frame portions. The right end frame portion 11 is fixed to the right end of the upper end frame portion 15, i.e., the front end of the right inclined side portion 16, and stands up in the vertical direction. The left side frame portion is fixed to the left end of the upper end frame portion 15, i.e., the front end of the left inclined side portion 17, and stands up in the vertical direction. The right rear frame portion 13 is fixed to the rear part of the right inclined side portion 16 and stands up in the vertical direction, and the left rear frame portion 14 is fixed to the rear part of the left inclined side portion 17 and stands up in the vertical direction. The vertically oriented frame portions (11 to 14) described above function as a support portion 30 that supports the expandable members (21, 22) of the movable mechanism 20 described later (for convenience, in each figure, the frame portions that function as support portions are given the common reference number 30 in parentheses).

[0017] [Movable Mechanism of the First Embodiment] The movable mechanism 20 shown in Fig. 1 and Fig. 3 is a mechanism for moving the outer shape of the upper seating surface 6A (design surface), and may include a plurality of telescopic members (21, 22), a pair of support parts 30 that support both ends of each telescopic member, a detection part 40, and a control part 50. Referring to Fig. 2 and Fig. 4, the upper seating surface 6A is provided with a plurality of first telescopic members 21 (in each figure, for convenience, some of the first telescopic members are given the reference number 21, and the reference number 21 is given in parentheses to the other first telescopic members or is omitted). In addition, a plurality of second telescopic members 22 are provided on the right side of one side in the seat width direction of the seat back 6 (in each figure, for convenience, some of the second telescopic members are given the reference number 22, and the reference numbers of the other second telescopic members are omitted). A plurality of other second telescopic members (22) are also provided on the left side of the seat back 6 in the seat width direction (for convenience in each figure, some of the other second telescopic members are given the reference number 22 in parentheses, and the reference numbers of the other second telescopic members are omitted).

[0018] [Example of a specific structure of an elastic member] Here, the first elastic member 21 and the second elastic member 22 are linear members extending in a predetermined direction as shown in FIG. 4, and are configured to change the length dimension in the extending direction. Examples of this type of elastic member include various actuators (so-called artificial muscles) such as members that expand and contract with fluid pressure such as liquid or gas. And as the above-mentioned elastic member, for example, the first elastic member 21 shown in FIG. 5 can be used. This first elastic member 21 is configured so that the length dimension in its extending direction (sheet width direction) changes with the inflow and outflow of fluid. That is, the first elastic member 21 is a hollow linear member that expands and contracts with the inflow and outflow of fluid such as liquid or gas, and includes a tube-shaped main body portion 24 that can expand with the change in fluid pressure, and a net-shaped restraint portion 25 that covers the outer surface of this main body portion 24. And in the first elastic member 21, when the main body portion 24 expands due to the inflow of fluid, the radial outward expansion of this main body portion 24 is suppressed by the restraint portion 25. As a result, the main body 24 of the first elastic member 21 expands only in its length direction (left and right direction in FIG. 5), and further shortens due to the outflow of fluid. The material of the main body 24 is not particularly limited, but it can be made of a material such as resin or elastomer with moderate elasticity. The material of the restraint portion 25 is also not particularly limited, but examples include a fiber material and a resin material with inferior elasticity to the main body 24. The first elastic member 21 communicates with the pump portion 27 and the discharge portion 28 via a valve 26 such as a pneumatic regulator shown in FIG. 3 (for convenience, in FIG. 3, one valve is given the reference number 26 and the reference numbers of the other valves are omitted).

[0019] [Configuration of the upper seating surface of the seat back] First, referring to Figs. 2 and 4, the upper seating surface 6A of the seat back 6 is provided with a plurality of first telescopic members 21 and a pair of right and left frame portions 11 and 12 as support portions 30. In the upper seating surface 6A, almost the entire area corresponds to a planar area provided between the right and left frame portions 11 and 12. The first telescopic members 21 are arranged at approximately equal intervals in the vertical direction of the upper seating surface 6A, in a state in which they are arranged so as to extend in the seat width direction (left and right direction) which is the planar direction of the upper seating surface 6A. As shown in Fig. 2, each first telescopic member 21 is supported by each frame portion while being stretched between the right and left frame portions 11 and 12, so that the first telescopic members 21 are arranged approximately evenly in the entire area of ​​the upper seating surface 6A.

[0020] Here, the method of supporting each of the first telescopic members 21 shown in FIG. 4 is not particularly limited, but for example, the end portions of each of the first telescopic members 21 in the seat width direction (left and right) can be supported so as to be rotatable in the front and rear of the seat. Here, the right end frame portion 11 shown in FIG. 6 will be described as an example. A bracket 19 is attached to this right end frame portion 11 via an axis portion (not shown) extending up and down of the seat, so that this bracket 19 can be rotated in the front and rear direction of the seat. Each of the first telescopic members 21 shown in FIG. 4 has both left and right ends supported by the right end frame portion 11 and the left end frame portion 12 via the bracket 19 that can tilt in the front and rear direction of the seat. As a result, when each of the first telescopic members 21 is shortened and stretched between the right end frame portion 11 and the left end frame portion 12 as described later, both ends of each of the first telescopic members 21 are supported by the bracket 19 so as to face the seat width direction. In addition, when each first telescopic member 21 extends and deforms into a concave shape toward the rear of the seat relative to the right-end frame portion 11 and the left-end frame portion 12, both ends of each first telescopic member 21 become supported by brackets 19 rotated toward the rear of the seat (see Figures 6 and 10).

[0021] [Side structure of seat back (seating surface)] Next, the side portions (right side and left side) in the seat width direction of the seat back 6 shown in FIG. 4 will be described. However, since the left and right side portions have substantially the same basic configuration, the right side portion will be described in detail as an example. The right side portion of the seat back 6 is provided with a plurality of second telescopic members 22. In addition, in the right side portion of the seat back 6, each second telescopic member 22 is supported between the right end frame portion 11 and the left rear frame portion 14 (a pair of support portions 30), so that it gradually extends obliquely to the outside (right side) in the seat width direction as it approaches the front side of the seat. And, as shown in FIG. 2, the second telescopic member 22 is disposed between the first telescopic members 21 adjacent to each other in the vertical direction of the seat. As a result, the first telescopic members 21 and the second telescopic members 22 are disposed alternately, and entanglement of the telescopic members adjacent to each other vertically is suppressed.

[0022] Further, the front end of each of the second telescopic members 22 shown in FIG. 4 is supported by the right end frame portion 11 at a position forward of the bracket 19. The front end of each of the second telescopic members 22 is disposed on the right side of the upper seating surface 6A with the front end crossing the first telescopic member 21. In the above-mentioned configuration, as shown in FIG. 11, the second telescopic member 22 shortens and is stretched between the right end frame portion 11 and the left rear frame portion 14, and the second telescopic member 22 gradually protrudes toward the upper seating surface 6A. At this time, by extending each of the first telescopic members 21 and deforming it into a concave shape, each of the second telescopic members 22 can be protruded toward the seating side more than each of the first telescopic members 21. In the above-mentioned configuration, the amount of protrusion of each of the second telescopic members 22 toward the seating side can be adjusted by adjusting the length dimension of each of the telescopic members. Also on the left side of the seat back 6, another second extensible member 22 is supported between the left end frame portion 12 and the right rear frame portion 13 and is disposed on the left side of the upper seating surface 6A.

[0023] Here, in the upper seating surface 6A shown in FIG. 2, the first telescopic member 21 itself is exposed to the outside. This makes it easy to inspect, repair, replace, and so on the first telescopic member 21 during maintenance of the vehicle seat 2. In addition, in the upper seating surface 6A, a seat cover can be arranged on the seating side (front side) of the first telescopic member 21. This type of seat cover can be formed with a surface material such as fabric (woven fabric, knitted fabric, nonwoven fabric) or leather (natural leather, synthetic leather). In addition, a pad material such as elastically stretchable slab urethane or a backing material such as nonwoven fabric can be provided on the back side of the seat cover. In addition, when a seat cover is provided, it is desirable to adjust the thickness dimension, especially the thickness dimension of the pad material, so that it can smoothly follow the deformation of the first telescopic member 21. For example, slab urethane used in general seat covers has a density of 20 g / cm 2 Since the density and thickness are about 0.5 mm, it is relatively easy to ensure conformability. From the viewpoint of ensuring conformability more appropriately, the density and thickness can be made smaller than usual, for example, the thickness can be set to less than 0.5 mm, or to about 0.4 mm to 0.2 mm. The rear surface of the vehicle seat 2 can also be covered with a cover, shell, or the like. In this case, too, the second telescopic member 22 can be exposed by removing the cover, shell, or the like, making inspection of the second telescopic member 22 easy.

[0024] [Detection unit] The detection unit 40 shown in FIG. 1 is a part that detects changes in the situation inside the vehicle cabin, and can be composed of various sensors (for convenience, only the outer shape of the seating sensor is shown by a broken line in each drawing). For example, in the vehicle seat 2, the upper seating sensor 41 is provided on the upper seating surface 6A, and the lower seating sensor 42 is provided on the lower seating surface 4A. A planar pressure sensor can be used as this type of seating sensor. Then, by the function of each seating sensor 41 (42), it becomes possible to detect the physique and movement of the occupant by acquiring the seat pressure distribution and its change on each seating surface 4A (6A) when the occupant is seated. Here, the upper seating sensor 41 can be provided so as to extend in the seat up-down direction at the center of the upper seating surface 6A in the seat width direction. Also, the lower seating sensor 42 can be provided so as to extend in the seat front-rear direction at the center of the lower seating surface 4A in the seat width direction. Each seating sensor 41 (42) can have a first telescopic member 21 (210) attached to its rear side. This allows each seating sensor 41 (42) to function as a positioning unit, maintaining the positional relationship of the multiple first telescopic members 21, and preventing the first telescopic members 21 from becoming entangled. Note that a belt-shaped or linear (wire-shaped) member can be used as an alternative to the positioning unit. The first telescopic member 21 and the positioning unit can also be integrated together. For example, a part of the first telescopic member 21 can be made of resin, and a resin positioning unit can be integrally molded with the part.

[0025] Furthermore, the vehicle seat 2 shown in FIG. 1 is provided with inclination sensors 43a, 43b, 43c, and 43d as the detection unit 40 to detect the inclination of the seat. The inclination sensor 43a, etc. can be installed, for example, at the four corners between the upper rail 9a and the vehicle seat 2 (see FIG. 7), and the inclination sensors 43a to 43d at the four corners can detect the degree of inclination of the vehicle seat 2. Furthermore, the movable mechanism 20 can have a displacement sensor (not shown) that detects the movement of the handlebars and pedals, and thus can detect the movement of the occupant while driving the vehicle. Furthermore, by having a displacement sensor (not shown) that detects the opening and closing of the door, the movable mechanism 20 can detect the getting on and off of the occupant. Furthermore, as the detection unit 40, various members such as a camera and a sound collector can be provided in addition to various sensors. For example, the camera can detect the physique and movement of the occupant or the situation inside the vehicle cabin by using images, and can detect, for example, the intrusion of the occupant into the vehicle cabin, the movement of the occupant inside the vehicle cabin, and the getting on and off actions of the occupant by using images. The sound collector can detect sounds generated inside the vehicle cabin, such as voice commands from the occupant and sounds emitted when the occupant is sleeping. The detection unit 40 may be configured to detect changes in the situation inside the vehicle cabin in real time, or may be configured to be activated by the operation of the occupant.

[0026] [Control Unit] 1 to 3 is a part that extends or shortens the first telescopic member 21 and the second telescopic member 22 based on information obtained from the detection unit 40 (in each figure, the control unit 50 is simply shown as a square for convenience, but this is not intended to limit the configuration or position of the control unit). When the signal from the detection unit 40 is input to the control unit 50, the control unit 50 can extend or shorten each telescopic member (21, 22) depending on the situation. For example, the control unit 50 can control the on / off of a valve 26 such as a pneumatic regulator shown in FIG. 3 to connect each telescopic member (21, 22) to either the pump unit 27 or the discharge unit 28, thereby changing the length dimension of each telescopic member (21, 22). The control unit 50 can control the movable mechanism 20 based on information from the detection unit 40 that detects the situation inside the vehicle cabin in real time, for example. The control unit 50 can also have a part that controls the movable mechanism 20 and a storage part that stores data. The memory portion can store data on the expansion and contraction states of the expandable members (21, 22) corresponding to ideal seating postures measured using various occupant models, or data on the expansion and contraction states of the expandable members (21, 22) when a specific occupant has sat in the seat in the past. Note that a dedicated member may be used as the control unit 50, or a control unit of the vehicle such as an ECU may be used as the control unit 50, and either a wired or wireless system may be adopted.

[0027] [Seat cushion configuration] The seat cushion 4 shown in Figs. 8 and 9 has a plurality of frame parts (61-65) and another movable mechanism 200 for moving the outer shape of the lower seating surface 4A (design surface) (for convenience, in each drawing, the reference symbol 200 indicating the other movable mechanism is attached to the first length variable mechanism). Here, as shown in Fig. 8, the seat cushion 4 has an upper right frame part 61 and an upper left frame part 62 extending in the seat front-rear direction at both ends (left and right ends) in the seat width direction. In addition, a wide lower frame part 65 extending in the seat front-rear direction is provided on the seat underside of the upper right frame part 61 and the upper left frame part 62. The lower frame part 65 is provided on the right side part, and the lower right frame part 63 is disposed on the seat underside and inward in the seat width direction of the upper right frame part 61. A lower left frame portion 64 is provided on the left side surface of the lower frame portion 65, and this lower left frame portion 64 is disposed below the seat and on the inner side in the seat width direction of the upper left frame portion 62.

[0028] 8 and 9, a plurality of separate first telescopic members 210 are supported by the upper right frame portion 61 and the upper left frame portion 62 (a pair of support portions 30) on the lower seating surface 4A (in each drawing, for convenience, some of the separate first telescopic members are given the reference number 210, and the reference number 210 is given in parentheses or omitted for the other separate first telescopic members). This allows the separate first telescopic members 210 to be displaced between a state stretched between the upper right frame portion 61 and the upper left frame portion 62 and a state recessed to the lower side of the seat. Also, a plurality of separate second telescopic members 220 are supported by the upper right frame portion 61 and the lower right frame portion 63 (a pair of support portions 30) on the right side of the seat cushion 4 (in each drawing, for convenience, only one second telescopic member is given the reference number 220, and the reference numbers of the other second telescopic members are omitted). In addition, a plurality of second telescopic members (220) are supported by the upper left frame portion 62 and the lower left frame portion 64 (a pair of support portions 30) on the left side of the seat cushion 4 (for convenience in each drawing, only one second telescopic member is given the reference number 220 in parentheses, and the reference numbers of the other second telescopic members are omitted). In the seat cushion 4, as shown in FIG. 9, a support member 70 for supporting the occupant can be arranged on the seat underside of the separate first telescopic member 210. Examples of such a support member 70 include a planar or spring-like member. For example, the support member 70 shown in FIG. 9 is formed of a trapezoidal surface material whose rear side is wider in a plan view, and is arranged on the seat underside of the lower seating surface 4A and in the center in the seat width direction.

[0029] [Behavior of the seating surface (movable mechanism) when a passenger is seated] As described above, in the vehicle seat 2 shown in FIG. 1, there is a demand to change the outer shape of each seating surface 4A, 6A (design surface) according to the situation. Therefore, the movable mechanism 20 (200) of this embodiment has a plurality of telescopic members 21 (210) etc. provided to extend in the planar direction of each seating surface 6A <4A>, and a pair of support parts 30 that support both ends of each telescopic member in the extending direction. The plurality of telescopic members 21 (210) etc. are arranged in a line in the planar area of ​​each seating surface 6A <4A> provided between the pair of support parts 30, and are configured so that the length dimension in the extending direction changes depending on the inflow and outflow of fluid. According to the above-mentioned configuration, the plurality of telescopic members 21, 210 etc. are arranged in the portion (targeted area) of each seating surface 4A, 6A provided between the pair of support parts 30, and the length dimension is appropriately changed, so that the shape of each seating surface 4A, 6A at the appropriate place can be changed overall. That is, in the above-mentioned configuration, the seating surfaces 6A <4A> are in a reference state when the multiple elastic members 21 (210) etc. are in a taut state between the pair of support parts 30. Also, as the length dimension of the multiple elastic members 21 (210) etc. is extended, the seating surfaces 6A <4A> are deformed from the reference state into a concave shape. Here, the operation of the movable mechanism 20 will be described in more detail, taking the seat back 6 as an example, according to the state of the vehicle seat 2, etc.

[0030] [How the movable mechanism works when the passenger is seated] When an occupant sits on the vehicle seat 2 shown in FIG. 1, first, the upper seating surface 6A of the seat back 6 can be in a state where the multiple first elastic members 21 are stretched between the corresponding pairs of support parts 30. As a result, as shown in FIG. 4, the multiple first elastic members 21 are linearly arranged in the seat width direction, and the upper seating surface 6A is in a substantially flat reference state. When the occupant sits on the upper seating surface 6A in this reference state, the occupant's lower back to back is brought into contact with the upper seating surface 6A. As a result, the upper seating sensor 41 (detection unit 40) detects the pressure distribution of the upper seating surface 6A in real time, and the detection information is input to the control unit 50. Then, referring to FIG. 4 and FIG. 10, the control unit 50 changes the length dimension of each of the first elastic members 21 of the upper seating surface 6A, so that the shape of the upper seating surface 6A can be changed to suit the physique of the occupant. Furthermore, when each first telescopic member 21 is extended as shown in Figure 10, it is desirable to extend each second telescopic member 22 moderately and recess it toward the rear of the seat so that it does not protrude excessively toward the seating side.

[0031] In the above-mentioned configuration, when a relatively small occupant sits on the vehicle seat 2, the first telescopic members 21 are appropriately stretched and recessed toward the rear of the seat as shown in FIG. 10. In this way, the shape of the upper seating surface 6A is changed to a curved surface recessed toward the rear of the seat, so that the seating surface shape fits the occupant. In addition, in the case of a relatively large occupant, the first telescopic members 21 are further stretched to make the shape of the seating surface largely recessed toward the rear of the seat, so that the seating surface shape fits the occupant. According to the above-mentioned configuration, by changing the length dimension of the first telescopic members 21, the shape of the area formed between the pair of support parts 30, that is, the substantially entire area of ​​the upper seating surface 6A, can be appropriately changed from flat to curved. And in the seat cushion 4 shown in FIG. 8 and FIG. 9, the shape of the lower seating surface 4A is changed by expanding and contracting the other first telescopic members 21, so that a fit for the occupant can be ensured.

[0032] [First area, second area] Furthermore, in the seat back 6 shown in FIG. 2, the control unit 50 can change the length dimension of each of the first telescopic members 21 uniformly or independently. For example, the upper seating surface 6A of the seat back 6 can be divided in the height direction into a first region A1 facing the occupant's waist and a second region A2 facing the occupant's back above the first region A1. When an occupant leans back on the seat back 6, it is desirable to fit the seating surface to the waist to reduce the burden, so it is desirable to finely change the shape of the first region A1 facing the waist to suit the occupant. Therefore, the control unit 50 can independently extend or shorten each of the first telescopic members 21 arranged in the first region A1, thereby making it possible to finely change the shape of the first region A1 and ensure an excellent fit to the occupant's waist. It is also desirable for the seat back 6 to be able to support the occupant's straight back in a planar and overall manner. Therefore, by linking the first extensible members 21 arranged in the second region A2 to be uniformly extended or shortened, the second region A2 can provide planar and overall support for the back of the occupant.

[0033] 9, a separate first region A11 can be provided to face the buttocks of an occupant, and a separate second region A12 can be provided to face the legs of the occupant. By carefully changing the shape of the separate first region A11 of the seat cushion 4, it is possible to ensure an excellent fit to the buttocks of the occupant. By uniformly changing the shape of the separate second region A12 of the seat cushion 4, it is possible to support the legs of the occupant in a planar and overall manner.

[0034] [Operation of the moving mechanism when the vehicle is moving] In addition, in the vehicle seat 2 shown in FIG. 1, when the vehicle is traveling, the movable mechanism 20 can be operated in response to the movement of the vehicle. For example, when the vehicle turns while traveling on a curve and the vehicle seat 2 is tilted, the tilt of the vehicle seat 2 can be detected in real time by the tilt sensors 43a to 43d (detection unit 40). Referring to FIG. 11, by shortening either the left or right second telescopic member 22 (the second telescopic member on the right side in FIG. 11), the second telescopic member 22 can be relatively protruded toward the seating side. As a result, when the vehicle seat 2 is tilted and the occupant tries to skid sideways, the occupant can be supported by the second telescopic members 22, which contributes to ensuring excellent support. Furthermore, when the vehicle seat 2 shown in FIG. 1 is tilted forward while the vehicle is traveling or suddenly stopped, the occupant may try to move forward. In such a case, by shortening another first telescopic member 210 on the front side (e.g., the second region A12) of the lower seating surface 4A of the seat cushion 4 shown in Figure 9, the occupant can be supported by this shortened first telescopic member 210.

[0035] [Support for passengers while driving] Furthermore, in the vehicle seat 2 shown in FIG. 1, the displacement sensor (detection unit 40) that detects the movement of the steering wheel and pedals can be used to support the occupant while driving with the movable mechanism 20 (200). For example, when the occupant operates the steering wheel, the movement of the occupant's shoulders can be supported by extending or shortening the corresponding first telescopic member 21. Also, when the occupant operates the pedals, the movement of the occupant's legs can be supported by extending or shortening the corresponding separate first telescopic member 210. And when the occupant gets on or off, the occupant's getting on or off action can be supported by extending or shortening each telescopic member 21 (210).

[0036] In addition, in the above-mentioned configuration, it is desirable to recover the fatigue of the occupant when the occupant is seated for a long period of time. In addition to the massage function, the above-mentioned configuration can change the posture of the occupant appropriately by expanding and contracting each of the first expandable members 21 (210) shown in FIG. 1, thereby preventing the occupant from staying in the same posture for a long period of time, which further contributes to fatigue recovery. Furthermore, if there is an object around the traveling vehicle, the presence of the object can be notified to the occupant by moving each of the seating surfaces 4A, 6A. The back side of the occupant has few sensory points and is somewhat insensitive, but according to the above-mentioned configuration, the upper seating surface 6A can be moved in a planar and overall manner to more reliably notify the occupant of the presence of the object.

[0037] As described above, in the movable mechanism 20 etc. of this embodiment, the multiple telescopic members 21 etc. are arranged side by side in a planar area that forms at least a part of the seating surface (design surface). By changing the length dimension of each telescopic member 21 etc., the shape of the area formed between the pair of support parts 30 can be changed planarly (for example, from flat to curved). Thus, in this embodiment, by arranging the multiple telescopic members 21 etc. in the seating surface part (targeted area) provided between the pair of support parts 30 and appropriately changing the length dimension, the shape of the appropriate part of the seating surface can be changed overall. Therefore, according to this embodiment, the outer shape of the seating surface (design surface of the interior part) of the vehicle seat 2 can be more appropriately deformed in the targeted area.

[0038] Furthermore, in this embodiment, the length dimension of each of the telescopic members 21, etc. can be changed by the detection unit 40 and the control unit 50 according to the change in the situation in the vehicle cabin, so that the seating surface of the vehicle seat 2 can be changed to a more appropriate shape. In the above-mentioned configuration, the second telescopic members 22, etc. arranged on the sides in the seat width direction are shortened and protruded toward the seating surface side, so that the side shape of the seating surface can be changed as necessary. In this embodiment, the length dimension of each of the telescopic members 21, etc. can be changed according to the movement (tilt, etc.) of the vehicle seat 2 and the physique and movement of the occupant, so that the seating surface shape of the vehicle seat 2 can be changed more appropriately. In this embodiment, the shape of the seating surface can be changed uniformly in the first region A1, etc., and the shape of the seating surface can be changed finely in the second region A2, etc.

[0039] [Movable mechanism of the second embodiment] Here, the vehicle seat and the movable mechanism may have various configurations in addition to the configurations described above. For example, a vehicle seat 2X and a movable mechanism 20X of a second embodiment shown in Fig. 12 and Fig. 13 have substantially the same basic configuration as the vehicle seat 2 of the first embodiment. The vehicle seat 2X and the movable mechanism 20X are different from the first embodiment in that each frame portion (a pair of support portions 30) forming the framework of the vehicle seat 2X and the movable mechanism 20X rotates in the seat width direction.

[0040] First, the seat back 6X shown in FIG. 12 has a right frame portion 81 and a left frame portion 82 as vertical frame portions, and the rear ends of the left and right frame portions are connected by a horizontal frame portion 83. The rear end of the right frame portion 81 is connected to a first hinge portion 84 provided at the right end of the frame portion so as to be rotatable in the seat width direction. The rear end of the left frame portion 82 is connected to a second hinge portion 85 provided at the left end of the frame portion so as to be rotatable in the seat width direction. In the above-mentioned configuration, as shown in FIG. 12 and FIG. 13, the right frame portion 81 (left frame portion 82) can be rotated inward and outward in the seat width direction around the corresponding first hinge portion 84 (second hinge portion 85). The right frame portion 81 and the left frame portion 82 can be rotated by a drive mechanism (not shown) or by human power, and a locking mechanism (not shown) for locking each frame portion at a predetermined rotation position can also be provided.

[0041] 12, on the upper seating surface 6A of a seat back 6X, a plurality of first telescopic members 21X are supported by a right frame portion 81 and a left frame portion 82 as a pair of support portions 30. Also, on the right side of the seat back 6X, a plurality of second telescopic members 22X are supported by a front end of the right frame portion 81 and a rear end of the left frame portion 82 as a pair of support portions 30. Also, on the left side of the seat back 6X, a plurality of other second telescopic members (22X) are supported by a front end of the left frame portion 82 and a rear end of the right frame portion 81 as a pair of support portions 30.

[0042] In the above-mentioned configuration, in the case of a relatively large occupant, the right frame portion 81 and the left frame portion 82 shown in FIG. 13 are rotated in a direction away from each other, and in this state, the movable mechanism 20X is operated. In this way, the distance between the right frame portion 81 and the left frame portion 82 is increased, so that the seat outer shape can be made to fit a large occupant. In the case of a relatively small occupant, the right frame portion 81 and the left frame portion 82 are rotated in a direction toward each other, as shown in FIG. 12. In this way, the distance between the right frame portion 81 and the left frame portion 82 is reduced, so that the seat outer shape can be made to fit a small occupant. At this time, by shortening each of the elastic members 21X, 22X, the right frame portion 81 and the left frame portion 82 can be rotated, and the rotation operation can be assisted. Furthermore, by reducing the distance between the right frame portion 81 and the left frame portion 82, i.e., the width dimension of the seat back 6X, the interior space of the vehicle can be expanded. When the right frame portion 81 and the left frame portion 82 are to be rotated in the direction away from each other again, the rotating operation can be assisted by stretching and loosening the respective expandable members 21X, 22X.

[0043] [Movable mechanism of the third embodiment] 14 and 15, a vehicle seat 2Y and a movable mechanism 20Y according to a third embodiment have substantially the same basic configuration as the vehicle seat 2X according to the second embodiment. The vehicle seat 2Y and the movable mechanism 20Y differ from the second embodiment in that each frame portion (a pair of support portions 30) forming the framework of the vehicle seat 2Y and the movable mechanism 20Y slides in the seat width direction.

[0044] First, the seat back 6Y shown in FIG. 14 has a right frame portion 91 and a left frame portion 92 as vertical frame portions, and the rear ends of the left and right frame portions are connected by a horizontal frame portion 93. The right frame portion 91 is formed in a substantially L-shape when viewed from above, and has a right main body portion 91a extending diagonally to the front side of the seat and outward in the width direction, and a right connecting portion 91b extending from the rear end of the right main body portion 91a to the inside in the width direction of the seat. The left frame portion 92 is also formed in a substantially L-shape, and has a left main body portion 92a extending diagonally to the front side of the seat and outward in the width direction, and a left connecting portion 92b extending from the rear end of the left main body portion 92a to the inside in the width direction of the seat. The right connecting portion 91b and the left connecting portion 92b are connected to the frame portion 93 extending in the width direction of the seat so as to be slidable in the seat width direction. The right frame portion 91 and the left frame portion 92 can be slid by a drive mechanism (not shown) or by human power, and a locking mechanism (not shown) for locking each frame portion at a predetermined sliding position can also be provided.

[0045] 14, a plurality of first telescopic members 21Y are supported by a right frame portion 91 and a left frame portion 92 as a pair of support portions 30 on the upper seating surface 6A of the seat back 6Y. On the right side of the seat back 6Y, a plurality of second telescopic members 22Y are supported by a front end of the right frame portion 91 and a rear end of the left frame portion 92 as a pair of support portions 30. On the left side of the seat back 6Y, a plurality of other second telescopic members (22Y) are supported by a front end of the left frame portion 92 and a rear end of the right frame portion 91 as a pair of support portions 30.

[0046] In the above-mentioned configuration, in the case of a relatively large occupant, the right frame portion 91 and the left frame portion 92 shown in FIG. 15 are slid in directions away from each other, and in this state, the movable mechanism 20Y is operated. In this way, by increasing the distance between the right frame portion 91 and the left frame portion 92, the seat outer shape can be made to fit a large occupant. In the case of a relatively small occupant, the right frame portion 91 and the left frame portion 92 are slid in directions toward each other, as shown in FIG. 14. In this way, by decreasing the distance between the right frame portion 91 and the left frame portion 92, the seat outer shape can be made to fit a small occupant, and the interior space can also be easily secured.

[0047] The interior product of the present embodiment is not limited to the above-mentioned embodiment, and may take various other embodiments. For example, in the vehicle seat of the present embodiment, the substantially entire area of ​​the seating surface is the planar area between the pair of support parts, but this planar area can be provided in at least a part of the seating surface. For example, the seating surface can be divided into a top plate main part in the center of the seat width direction and a top plate side part located on the side of the top plate main part. In this case, the planar area can be provided in at least a part of the top plate main part and the top plate side part, and can be provided only in the lower part of the top plate main part facing the occupant's waist or in the upper part of the top plate main part facing the occupant's back. In addition, in the vehicle seat, multiple second telescopic members can be provided on at least one side (right side or left side) in the seat width direction as necessary. The area in which the second telescopic members are arranged can also be provided in at least a part of the side of the vehicle seat. Furthermore, the vehicle seat can be provided with a first area in which multiple second telescopic members extend or contract in conjunction with each other, and a second area in which multiple second telescopic members extend or contract independently. The vehicle seat may be configured with a seat cover, a seat pad, and a seat frame other than the above-mentioned areas. In addition, the lower seating surface of the seat cushion and the upper seating surface of the seat back may be integrally formed (continuously formed).

[0048] The configuration of each telescopic member can be changed as appropriate, and the cross-sectional shape is not particularly limited, and may be formed to be substantially circular or substantially flat (for example, a rectangular or elliptical shape elongated in the vertical direction of the seat back). The first telescopic member can be arranged to extend in the surface direction of the seating surface, and can be arranged to extend in an appropriate direction such as the vertical direction of the seat, the vertical direction of the seat and the width direction (diagonal direction) of the seat, in addition to the width direction of the seat. The multiple first telescopic members may all extend in the same direction, or some of them may extend in different directions. The multiple first telescopic members can also be arranged in a lattice (crossing) on ​​the seating surface. The configuration and extension direction of the second telescopic member can also be set as appropriate. The position of the pair of support parts can be set according to the extension direction of the telescopic member described above. For example, when the telescopic member is extended in the vertical direction of the seat, its end can be supported by a pair of support parts extending in the width direction of the seat.

[0049] In addition, in a vehicle seat (interior product), all of the multiple first telescopic members may be uniformly telescopic, or all of the multiple first telescopic members may be independently telescopic, as may the multiple second telescopic members. The detection unit may have at least one of sensors, cameras, and sound collectors, and may be omitted as necessary. For example, in the case where the movable mechanism is operable manually and each telescopic member is moved based only on information stored in the control unit, the detection unit may be omitted. The configurations of each embodiment may be used in appropriate combination.

[0050] As an example of a vehicle interior product, the configuration of this embodiment is applied to the seat cushion and seat back of a vehicle seat, but the configuration of this embodiment can be applied to various vehicle interior products. For example, in a vehicle seat, the configuration of this embodiment can be applied to parts that configure the design surface of various seat components such as a headrest, armrest, and footrest (ottoman) in addition to the seat cushion and seat back. In addition to a vehicle seat, various components such as a door part on the vehicle interior side, an instrument panel, a ceiling part, and a console can be exemplified as vehicle interior products, and the configuration of this embodiment can be suitably applied to vehicle interior products mounted on vehicles such as cars, airplanes, trains, and ships. By changing the external shape of the vehicle interior product to suit the occupant, an interior environment of the vehicle that satisfies the occupant's preferences can be formed. Furthermore, the configuration of this embodiment can be applied to various interior products installed in structures such as houses. In addition, in the above interior products, examples of changes in the situation inside the room include changes in the situation caused by the movement of the room itself or the interior product due to an earthquake, changes in the situation caused by an object entering the room, and changes in the situation caused by an object coming into contact with the interior product. The object may be an object other than a human, and when the object hits the design surface, the design surface may be deformed into a concave shape to absorb the impact. [Explanation of symbols]

[0051] 2 (First embodiment) vehicle seat 4 Seat cushion 4A Lower seating surface 6 Seat back 6A Upper seating surface 9a Upper Rail 9b Lower rail 11 Right end frame section 12 Left end frame section 13 Right rear frame section 14 Left rear frame section 15 Upper frame section 16 Right slope side 17 Left slope side 18 Posterior part 19 Bracket 20 (First embodiment) Movable mechanism 200 (First embodiment) Another movable mechanism 21 (first embodiment) first telescopic member 22 (of the first embodiment) second telescopic member 210 (of the first embodiment) another first telescopic member 220 (of the first embodiment) another second telescopic member 24 Main body 25 Restraint part 26 Valves 27 Pump section 28 Discharge section 30 Support part 40 Detection unit 41 Upper seating sensor 42 Lower seating sensor 43a~43d Tilt sensor 50 Control section 61 Upper right frame 62 Upper left frame part 63 Lower right frame part 64 Lower left frame part 65 Lower frame part 70 Support member A1 (Seat back) first area A2 (Seat back) second area A11 (of the seat cushion) Another first area A12 (of the seat cushion) Another second area 2X (Second embodiment) vehicle seat 6X (second embodiment) seat back 81 Right side frame part 82 Left side frame 83 (second embodiment) horizontal frame portion 84 First hinge part 85 Second hinge part 20X (second embodiment) movable mechanism 21X (of the second embodiment) first telescopic member 22X (second embodiment) second telescopic member 2Y (third embodiment) vehicle seat 6Y (third embodiment) seat back 91 Right frame part 91a Right body part 91b Right connection site 92 Left frame part 92a Left body part 92b Left connection site 93 (third embodiment) horizontal frame portion 20Y (third embodiment) movable mechanism 21Y (third embodiment) first telescopic member 22Y (third embodiment) second telescopic member

Claims

1. In an interior part, the shape of the design surface that constitutes the exterior can be changed by moving the design surface with a movable mechanism. The movable mechanism includes a plurality of elastic members provided to extend in a surface direction of the design surface, and a pair of support parts supporting both ends of the plurality of elastic members in the extending direction, The multiple expandable members are arranged in a line in the planar area of ​​the design surface provided between the pair of support parts, and are configured so that the length dimensions in the direction in which they each extend change depending on the flow of fluid in and out of the interior part.

2. 2. The interior part according to claim 1, wherein the movable mechanism has a detection unit that detects a change in a condition inside a room in which the interior part is installed, and a control unit that extends or shortens at least one of the plurality of expandable members based on information obtained from the detection unit.

3. The vehicle seat as the interior part has a seating surface as the design surface, and has, as the multiple elastic members, a multiple number of first elastic members provided so as to extend in a surface direction of the seating surface, and a multiple number of second elastic members provided on one side of the seating surface in a seat width direction, The interior part according to claim 1, wherein the second expandable member is configured to gradually protrude toward the seating surface as the second expandable member contracts.

4. 4. The interior part according to claim 3, wherein the movable mechanism includes a detection unit that detects at least one of a movement of the vehicle seat, a physique of a seated occupant, and a movement of the occupant as a change in a situation inside the vehicle compartment, and a control unit that extends or shortens at least one of the plurality of expandable members based on information obtained from the detection unit.

5. 5. The interior part according to claim 3 or 4, further comprising a first region in which the plurality of first elastic members extend or contract in cooperation with each other, and a second region in which the plurality of first elastic members extend or contract independently.

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