Vehicle seats

Abstract

To provide a vehicle seat which contributes to further noise reduction in a vehicle.SOLUTION: A vehicle seat 11 includes: a seat frame 22a having an opening 46 in a plate-like portion 43; and an actuator 31 attached to the plate-like portion 43.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat to be mounted on a vehicle such as a four-wheeled automobile. [Background technology]

[0002] Patent Document 1 discloses a seat cushion that moves up and down relative to the floor of a vehicle. The seat cushion includes a seat cushion frame that supports the seat cushion pad. The seat cushion frame is supported by a base frame on slide rails. The seat cushion frame is connected to the base frame by a link mechanism. The seat cushion frame moves up and down relative to the base frame around the swing axis of the link member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5617660 Summary of the Invention [Problem to be solved by the invention]

[0004] Connected to the linkage is an actuator, which includes an electric motor that moves the seat cushion frame up and down through a transmission mechanism that includes gears that mesh in sequence. Until now, the vibration noise caused by these actuators has not been taken into consideration when designing vehicle seats.

[0005] The present invention has been made in view of the above circumstances, and has an object to provide a vehicle seat that contributes to further quieting the interior of a vehicle. [Means for solving the problem]

[0006] According to a first aspect of the present invention, there is provided a vehicle seat including a seat frame having an opening in a plate-shaped portion, and an actuator attached to the plate-shaped portion, wherein the opening is positioned to face the actuator and to overlap with the actuator in a side view of the vehicle seat, The actuator is attached to the plate-shaped portion and opens, At least the lower end of the opening overlaps with the actuator when viewed from the side, and the seat frame is bent from the edge of the plate-shaped portion, thereby providing a vehicle seat having a bending region that increases the rigidity of the edge through the effect of curvature.

[0007] According to the second aspect, in addition to the configuration of the first aspect, the actuator is provided on the outside of a side frame of the seat frame. are placed at the top and bottom positions of Coupler At least a portion of the opening (46) and the coupler (48) are arranged side by side in the vertical direction in the side view. There are.

[0008] According to the third aspect , th In addition to the two-sided configuration, The bending zone is folded back at the upper end away from the plate surface of the plate-shaped portion to create a double wall.

[0009] According to the fourth aspect, No. 2 In addition to the above configuration, the bending region is away from the plate surface of the plate-shaped portion. top and bottom The edges are folded over to create a double wall.

[0010] According to the fifth aspect, Third or In addition to the configuration of the fourth side surface, the bending regions are formed in pairs sandwiching a space that contacts the plate surface of the plate-shaped portion.

[0011] According to the sixth aspect, in addition to the configuration of the fifth aspect, the bending region has a dimension that is longer in the longitudinal direction along the edge than the distance between the opposing portions across the space, and divides the plate-shaped portion into a band along the longitudinal direction.

[0012] According to a seventh aspect, in addition to the configuration of the sixth aspect, the seat frame has a second opening in the plate-shaped portion at a position shifted from the opening in the longitudinal direction.

[0013] According to an eighth aspect, in addition to the configuration of the seventh aspect, the seat frame is The aforementioned a side frame, wherein the opening and the second opening are disposed at positions away from each of the bending regions; The second opening is provided in front of the opening in the longitudinal direction and at a position that does not overlap with the actuator in the side view. .

[0015] According to the 9th aspect, 8 In addition to the side configuration, The opening (46) and the second opening (47) are provided at the same height in the up-down direction in the side view.

[0016] According to the 10th aspect, 1 In addition to the side configuration, The seat frame is a seat cushion frame having a pair of left and right side frames, in which the actuator is attached to the plate-shaped portion of one of the side frames and the opening is formed therein, and a third opening is formed in the plate-shaped portion of the other side frame. According to an eleventh aspect, in addition to the configuration of the tenth aspect, the seat frame includes the seat cushion frame that supports a pad of a seat cushion, a seat back frame that is swingably connected to the seat cushion frame and supports a pad of a seat back, and a base frame that is guided by slide rails so as to be movable back and forth in the longitudinal direction and supports the seat cushion frame on the slide rails, the seat cushion frame is connected to the base frame by a link mechanism that guides the up and down movement of the seat cushion frame relative to the base frame around a horizontal axis, and includes a headrest that is supported on the upper end of the seat back and receives the head of an occupant, and the seat cushion, the seat back, and the headrest each have a covering material that encases the internal padding. [Effects of the Invention]

[0017] According to the first aspect, the openings function to adjust the mass of the seat frame, so that resonance of the seat frame in response to the operating vibration of the actuator can be suppressed. As a result, vibration noise of the seat frame is reduced. In addition, the rigidity of the plate-shaped portion is increased by the bending region, which helps to suppress resonance of the seat frame.

[0018] According to the second aspect, The coupler can be appropriately connected to the actuator.

[0019] According to the third aspect, This ensures increased rigidity in the bending region.

[0020] According to the fourth aspect, the rigidity of the bending region can be reliably increased, and the rigidity of the seat frame can be ensured.

[0021] According to the fifth aspect, the space adjacent to the opening in contact with the plate surface is sandwiched between the bending regions, so that even if an opening is formed in the plate-shaped portion, the rigidity of the plate-shaped portion can be ensured.

[0022] According to the sixth aspect, the bending region extends longer along the edge of the plate-shaped portion compared to the extent of the plate-shaped portion, so that the rigidity of the plate-shaped portion can be reliably increased.

[0023] According to the seventh aspect, the number of openings in the plate-shaped portion is increased, so that vibration noise can be further reduced.

[0024] According to the eighth aspect, the plate-shaped portion is more likely to vibrate the further it is from the bending region. By arranging the opening and the second opening in the region that is more likely to vibrate, the effect of suppressing resonance can be enhanced.

[0026] No. 10 According to the side view, the rigidity of the plate-shaped part of the other side frame is not reinforced by the installation of the actuator, so the plate-shaped part is wide and resonance is likely to occur. However, since an opening is formed in the other side frame, resonance of the side frame can be suppressed, resulting in a reduction in vibration noise of the seat frame. [Brief explanation of the drawings]

[0028] [Figure 1] 1 is a perspective view schematically illustrating the overall configuration of a vehicle seat according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view schematically illustrating the structure of a seat frame. [Figure 3] FIG. 2 is a perspective view showing a schematic configuration of a seat cushion pad and a seat back pad. [Figure 4]4 is an enlarged left side view of the seat cushion frame, corresponding to the view seen from the arrow 4 in FIG. 3. FIG. [Figure 5] FIG. 5 is an enlarged cross-sectional view taken along line 5-5 in FIG. 4. [Figure 6] 6 is an enlarged right side view of the seat cushion frame, corresponding to a view taken along an arrow 6 in FIG. 3. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0029] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, front, rear, left, right, and top and bottom refer to directions as seen from the perspective of an occupant seated in a vehicle seat.

[0030] FIG. 1 shows a schematic diagram of the overall configuration of a vehicle seat according to a first embodiment of the present invention. The vehicle seat 11 includes a slide rail 12 installed on the floor of the vehicle, a seat cushion 13 supported by the slide rail 12 so as to be movable in the front-rear direction and supporting the buttocks and thighs of an occupant, a seat back 14 connected to the seat cushion 13 so as to be swingable in the front-rear direction about a swing axis SX and supporting the back of the occupant, and a headrest 15 supported on the upper end of the seat back 14 and supporting the head of the occupant. The seat cushion 13, the seat back 14, and the headrest 15 each have upholstery materials 13a, 14a, and 15a that encase the internal pads. The upholstery materials 14a and 15a are attached to the outer surfaces of the pads by means of a suspending thread 16, following the recesses in the pads. Details of the pads will be described later.

[0031] The seat cushion 13 has a side cover 17. A first switch 18a and a second switch 18b are attached to the side cover 17. The first switch 18a and the second switch 18b are housed in a recess 19 defined in the base 13. The first switch 18a is formed as a knob that is long in the front-to-rear direction. When the first switch 18a is operated forward, the seat cushion 13 and the seat back 14 move forward. When the first switch 18a is operated rearward, the seat cushion 13 and the seat back 14 move rearward. When the first switch 18a is operated upward, the seat cushion 13 and the seat back 14 move upward. When the first switch 18a is operated downward, the seat cushion 13 and the seat back 14 move downward. The second switch 18b is formed as a knob that is long in the up-down direction. When the second switch 18b is operated forward, the seat back 14 swings forward around the swing axis SX. When the second switch 18b is operated rearward, the seat back 14 swings rearward about the swing axis SX.

[0032] 2, the vehicle seat 11 includes a seat frame 21 that supports a pad. The seat frame 21 is connected to a seat cushion frame 22 that supports a pad of the seat cushion 13 and is pivotally connected to the seat cushion frame 22 around a pivot axis SX. The seat cushion frame 22 is provided with a seat back frame 23 that is connected to the slide rails 12 and supports the pad of the seat back 14, and a base frame 24 that is guided by the slide rails 12 so as to be movable back and forth in the longitudinal direction and supports the seat cushion frame 22 on the slide rails 12. The seat cushion frame 22 is connected to the base frame 24 by a link mechanism 25. The link mechanism 25 is provided with a link member 26 that has one end that is connected to the base frame 24 so as to be rotatable about a horizontal axis FH that extends in the left-right direction, and the other end that is connected to the seat cushion frame 22 so as to be rotatable about a horizontal axis SH that extends in the left-right direction parallel to the horizontal axis FH. The link member 26 guides the up-down movement of the seat cushion frame 22 relative to the base frame 24 about the horizontal axis FH.

[0033] The seat cushion frame 22 includes side frames 22a extending parallel to the respective slide rails 12, a pan frame 22b connecting the side frames 22a to each other at the front end of the seat cushion 13, and a connecting pipe 22c connecting the side frames 22a to each other at the rear end of the seat cushion 13. A plurality of S springs (not shown) are disposed between the pan frame 22b and the connecting pipe 22c. Each S spring extends in the front-rear direction in a zigzag shape. The zigzag shape is formed by alternately combining wire rods extending in the front-rear direction and wire rods extending in the left-right direction.

[0034] An electric forward / backward movement device 27 is attached to the base frame 24. The electric forward / backward movement device 27 includes an electric motor 28 supported by the base frame 24. The electric motor 28 generates power in response to the supply of electric power. The power is supplied based on the operation of the first switch 18a. The power of the electric motor 28 causes the base frame 24 to move forward and backward along the slide rail 12.

[0035] An electric up-and-down movement device 29 is attached to the side frame 22a of the seat cushion frame 22. The electric up-and-down movement device 29 is supported by the side frame 22a and includes an actuator 31 connected to the link mechanism 25. The actuator 31 includes an electric motor 32 that generates power in response to the supply of electric power, and a transmission mechanism 33 that causes the link member 26 to rotate relative to the side frame 22a about the horizontal axis SH in response to the power of the electric motor 32. The transmission mechanism 33 is composed of a group of gears that mesh with each other in sequence, including, for example, a drive gear fixed to the drive shaft of the electric motor 32 and a driven gear fixed to the link member 26 about the horizontal axis SH. Electric power is supplied based on operation of the first switch 18a. The power of the electric motor 32 causes the side frame 22a to move up and down about the horizontal axis FH.

[0036] The seatback frame 23 includes a sheet metal frame 23a connected to the inside of each side frame 22a by a swing axis SX, and an upper frame 23b connecting the upper ends of the sheet metal frames 23a to each other. A tubular member 34 is fixed to the upper frame 23b, and supports a slide rod of the headrest 15 so that the headrest 15 can slide up and down.

[0037] An electric reclining device 35 is attached to the sheet metal frame 23a of the seatback frame 23. The electric reclining device 35 includes an actuator 36 attached to the side frame 22a of the seat cushion frame 22 around the swing axis SX. The actuator 36 is formed of an electric motor 37 that generates power in response to the supply of electric power, and a transmission mechanism 38 that converts the power of the electric motor 37 into driving force around the swing axis SX. The electric motor 37 generates power in response to the supply of electric power. The electric power is supplied based on the operation of the second switch 18b. The power of the electric motor 37 causes the seatback frame 23 to swing back and forth around the swing axis SX relative to the seat cushion frame 22.

[0038] As shown in FIG. 3, the seat cushion 13 is supported by a seat cushion frame 22. The seat back 14 further includes a seat cushion pad 42 supported by the seat back frame 23 and enclosed in the cover material 14a. The seat cushion pad 41 and the seat back pad 42 are made of a resilient material such as urethane foam.

[0039] As shown in FIG. 4 , the left side frame 22a of the seat cushion frame 22 has a plate-shaped portion 43 and bending regions 44a, 44b that are bent from the upper and lower edges of the plate-shaped portion 43 and increase the rigidity of the edges by the effect of curvature. The upper and lower edges of the plate-shaped portion 43 extend parallel to the slide rail 12 in the front-to-rear direction (longitudinal direction). The actuator 31 is attached to the plate-shaped portion 43. The bending regions 44a, 44b are formed as a pair of upper and lower bending regions that sandwich a space in contact with the plate surface of the plate-shaped portion 43. The bending regions 44a, 44b divide the plate-shaped portion 43 into a long strip shape in the front-to-rear direction. The front and rear ends of the bending region 44a are connected to the front and rear ends of the bending region 44b by rigid regions 45a, 45b, respectively. This increases the rigidity of the plate-shaped portion 43. The rigid regions 45 a and 45 b are formed by curved regions rising from the plate-shaped portion 43 .

[0040] The plate-shaped portion 43 has a first opening 46 and a second opening 47. 2 The opening 47 is drilled. 2 The opening 47 is located away from the upper and lower bending regions 44a and 44b. 2 The rigidity of the plate-shaped portion 43 is weakened at the position of the opening 47. The first opening 46 is disposed at a position facing the actuator 31. That is, the first opening 46 overlaps with the actuator 31 in a side view. 2 The opening 47 is positioned forwardly from the first opening 46 in the longitudinal direction.

[0041] A female coupler 48 is attached to the actuator 31. The female coupler 48 is disposed above the electric motor 32. A male coupler 51 is fitted into the female coupler 48 and connected to a harness 49 on the outside of the side frame 22a. The harness 49 is connected in a first direction from the inside to the outside of the side frame 22a. 2The first opening 47 is passed through the female coupler 48. The female coupler 48 is disposed at a position facing the first opening 46. The link mechanism 25 includes a link member 26b having one end coupled to the base frame 24 so as to be rotatable about a horizontal axis GH extending left and right parallel to the horizontal axis FH, and the other end coupled to the seat cushion frame 22 so as to be rotatable about a horizontal axis TH extending left and right parallel to the horizontal axis GH. The link member 26b cooperates with the aforementioned link member 26 to guide the up and down movement of the seat cushion frame 22 relative to the base frame 24 about the horizontal axis FH.

[0042] As shown in Fig. 5, the plate-shaped portion 43 extends along a vertical plane parallel to the direction of gravity. The bending regions 44a and 44b are folded back at the upper end away from the plate surface of the plate-shaped portion 43 to create a double wall. As shown in Fig. 4, the bending regions 44a and 44b have a dimension in the longitudinal direction along the edges that is longer than the distance between the bending regions 44a and 44b that faces each other across the space that contacts the plate surface of the plate-shaped portion 43.

[0043] As shown in FIG. 6 , the right side frame 22a of the seat cushion frame 22 has a plate-shaped portion 52 and bending regions 53a, 53b that are bent from the upper and lower edges of the plate-shaped portion 52 and increase the rigidity of the edges by the effect of the bending. The upper and lower edges of the plate-shaped portion 52 extend parallel to the slide rail 12 in the front-to-rear direction (longitudinal direction). The bending regions 53a, 53b are formed as a pair of upper and lower bending regions that sandwich a space that contacts the plate surface of the plate-shaped portion 52. The bending regions 53a, 53b divide the plate-shaped portion 52 into a strip-like shape that is long in the front-to-rear direction. The front and rear ends of the bending region 53a are connected to the front and rear ends of the bending region 53b by rigid regions 54a, 54b, respectively. This increases the rigidity of the plate-shaped portion 52. The rigid regions 54a, 54b are formed as curved regions that rise from the plate-shaped portion 52.

[0044] Openings 55 are formed in the plate-shaped portion 43. The openings 55 are located away from the upper and lower bending regions 53a, 53b. Therefore, the rigidity of the plate-shaped portion 52 is weakened at the positions of the openings 55. The openings 55 are located at intervals in the longitudinal direction. The right side frame 22a has a greater number of openings than the left side frame 22a.

[0045] Next, the operation of this embodiment will be described. The actuator 31 is attached to the left side frame 22a. The first opening 46 is formed in the plate-shaped portion 43 of the left side frame 22a. The first opening 46 serves to adjust the mass of the left side frame 22a, thereby suppressing resonance of the left side frame 22a in response to operational vibrations of the actuator 31. As a result, vibration noise from the left side frame 22a is reduced.

[0046] The left side frame 22a has a second opening in the plate-shaped portion 43 at a position offset in the longitudinal direction from the first opening 46. Increasing the number of openings in the plate-shaped portion 43 further reduces vibration noise. Moreover, because the female coupler 48 connected to the harness 49 on the outside of the left side frame 22a is positioned facing the first opening 46, the connection state of the female coupler 48 and the male coupler 51 can be confirmed from the inside of the left side frame 22a through the first opening 46.

[0047] The seat cushion frame 22 of the seat frame 21 has a pair of left and right side frames 22a. An actuator 31 is attached to a plate-shaped portion 43 of the left side frame 22a, and a first opening 46 and a second opening 47 are formed therein. An opening 55 is also formed in a plate-shaped portion 52 of the right side frame 22a. Because the actuator 31 is not attached to the right side frame 22a and the rigidity of the plate-shaped portion 52 is not reinforced, the plate-shaped portion 52 is large and prone to resonance. However, because the opening 55 is formed in the right side frame 22a, resonance of the right side frame 22a is suppressed. As a result, vibration noise of the seat frame 21 is reduced.

[0048] In the left side frame 22a, the first opening 46 and the second opening 47 are positioned away from the respective bending regions 44a, 44b. In the right side frame 22a, the opening 55 is positioned away from the respective bending regions 53a, 53b. The plate-shaped portions 43, 52 tend to vibrate more easily as they are further away from the bending regions 44a, 44b, 53a, 53b. Since the first opening 46, the second opening 47, and the opening 55 are positioned in areas that tend to vibrate, the resonance suppression effect is enhanced.

[0049] The first opening 46 is disposed at a position facing the actuator 31. Since vibrations tend to occur in the plate-shaped portion 43 at positions close to the actuator 31, if the first opening 46 is disposed at a position facing the actuator 31, resonance can be effectively suppressed.

[0050] The left side frame 22a is bent from the edge of the plate-shaped portion 43, and has bending regions 44a, 44b that increase the rigidity of the edge by the effect of curvature. The rigidity of the plate-shaped portion 43 is increased by the action of bending regions 44a, 44b, so resonance of the left side frame 22a is suppressed. Similarly, the right side frame 22a has bending regions 53a, 53b that increase the rigidity of the edge of the plate-shaped portion 52. The rigidity of the plate-shaped portion 52 is increased by the action of bending regions 53a, 53b.

[0051] The bending regions 44a, 44b of the left side frame 22a are folded back at the upper end away from the plate surface of the plate-shaped portion 43 to form a double wall. This reliably increases the rigidity of the bending regions 44a, 44b. The rigidity of the left side frame 22a is ensured. Similarly, the bending regions 53a, 53b of the right side frame 22a form a double wall. The rigidity of the bending regions 53a, 53b is ensured.

[0052] The bending regions 44a, 44b of the left side frame 22a are formed in a pair to sandwich a space in contact with the plate surface of the plate-shaped portion 43. In this way, the space in contact with the plate surface and adjacent to the first opening 46 is sandwiched between the bending regions 44a, 44b, so even if the first opening 46 is formed in the plate-shaped portion 43, the rigidity of the plate-shaped portion 43 is ensured. The bending regions 53a, 53b of the right side frame 22a are formed in a pair to sandwich a space in contact with the plate surface of the plate-shaped portion 52. In this way, even if the opening 55 is formed in the plate-shaped portion 52, the rigidity of the plate-shaped portion 52 is ensured.

[0053] In the left side frame 22a, the bending regions 44a, 44b are longer in the longitudinal direction along the edges of the plate-shaped region 43 than the distance between the bending regions 44a, 44b across the space in contact with the plate surface of the plate-shaped region 43, thereby defining the plate-shaped region 43 in a band-like shape along the longitudinal direction. Since the bending regions 44a, 44b extend longer along the edges of the plate-shaped region 43 than the extent of the plate-shaped region 43, the rigidity of the plate-shaped region 43 is reliably increased. Similarly, in the right side frame 22a, the bending regions 53a, 53b are longer in the longitudinal direction along the edges of the plate-shaped region 52 than the distance between the bending regions 44a, 44b across the space in contact with the plate surface of the plate-shaped region 52, thereby defining the plate-shaped region 52 in a band-like shape along the longitudinal direction. Since the bending regions 53a, 53b extend longer along the edges of the plate-shaped region 52 than the extent of the plate-shaped region 52, the rigidity of the plate-shaped region 52 is reliably increased.

[0054] The right side frame 22a has a greater number of openings 55 than the number of openings 46, 47 provided in the left side frame 22a. Because the actuator 31 is not mounted on the right side frame 22a, resonance is more likely to occur in the right side frame 22a than in the left side frame 22a, but because the right side frame 22a has more openings than the left side frame 22a, resonance in the right side frame 22a is suppressed. [Explanation of symbols]

[0055] 11...vehicle seat, 13...seat cushion, 21...seat frame, 22...seat cushion frame, 22a...side frame, 31...actuator, 43...plate-shaped portion, 44a...bending region, 44b...bending region, 46...opening (first opening), 47...second opening (second opening), 48...coupler (female coupler), 49...harness, 55...opening.

Claims

1. a seat frame (21) having an opening (46) in a plate-shaped portion (43); an actuator (31) attached to the plate-shaped portion (43); A vehicle seat comprising: the opening (46) is positioned to face the actuator (31) and overlap with the actuator (31) in a side view of the vehicle seat, and is open when the actuator (31) is attached to the plate-shaped portion (43); At least a lower end of the opening (46) overlaps with the actuator (31) in the side view, The seat frame (21) is characterized in that it has bending regions (44a, 44b) that are bent from the edges of the plate-shaped portion (43) and increase the rigidity of the edges by the effect of curvature.

2. The vehicle seat according to claim 1, a coupler (48) disposed outside a side frame (22a) of the seat frame (21) at a position above and below the actuator (31); The vehicle seat is characterized in that at least a portion of the opening (46) and the coupler (48) are arranged side by side in the vertical direction in the side view.

3. The vehicle seat according to claim 2, The vehicle seat is characterized in that the bending regions (44a, 44b) are folded back at the upper ends of the plate-shaped portions (43) that are away from the plate surface, thereby creating a double wall.

4. The vehicle seat according to claim 2, The vehicle seat is characterized in that the bending regions (44a, 44b) are folded back at the upper and lower ends away from the plate surface of the plate-shaped portion (43) to form a double wall.

5. The vehicle seat according to claim 3 or 4, The vehicle seat is characterized in that the bending regions (44a, 44b) are formed in pairs to sandwich a space in contact with the plate surface of the plate-shaped portion (43).

6. The vehicle seat according to claim 5, The vehicle seat is characterized in that the bending regions (44a, 44b) have a dimension in the longitudinal direction along the edge that is longer than the distance between the regions facing each other across the space, and divide the plate-shaped portion (43) into a band-like shape along the longitudinal direction.

7. The vehicle seat according to claim 6, The vehicle seat is characterized in that the seat frame (21) has a second opening (47) in the plate-shaped portion (43) at a position offset from the opening (46) in the longitudinal direction.

8. The vehicle seat according to claim 7, the seat frame (21) is the side frame (22a) of the seat cushion (13), and the opening (46) and the second opening (47) are arranged at positions away from the respective bending regions (44a, 44b); The second opening (47) is provided in front of the opening (46) in the longitudinal direction and at a position that does not overlap with the actuator (31) in the side view.

9. The vehicle seat according to claim 8, The vehicle seat is characterized in that the opening (46) and the second opening (47) are provided at the same height position in the up-down direction in the side view.

10. The vehicle seat according to claim 1, The seat frame (21) is a seat cushion frame (22) having a pair of left and right side frames (22a), and the actuator (31) is attached to the plate-shaped portion (43) of one of the side frames (22a) and the opening (46) is formed therein, and a third opening (55) is formed in the plate-shaped portion (43) of the other side frame (22a).

11. The vehicle seat according to claim 10, The seat frame (21) includes the seat cushion frame (22) that supports a pad of a seat cushion (13), a seat back frame (23) that is swingably connected to the seat cushion frame (22) and supports a pad of a seat back (14), and a base frame (24) that is guided by slide rails (12) so as to be movable back and forth in the longitudinal direction and supports the seat cushion frame (22) on the slide rails (12), The seat cushion frame (22) is connected to the base frame (24) by a link mechanism (25), The link mechanism (25) guides the vertical movement of the seat cushion frame relative to the base frame (24) around a horizontal axis, a headrest (15) supported on the upper end of the seat back (14) to receive the head of an occupant; The vehicle seat is characterized in that the seat cushion (13), the seat back (14) and the headrest (15) each have a covering material that encases an internal pad.

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