Vehicle seats

Abstract

To provide a vehicle seat that allows a occupant to sit in a good posture. [Solution] A vehicle seat 10 comprising a seat portion 20 on which a user of a vehicle C can sit, a seat slide portion 30 that can slide the seat portion 20 relative to the floor surface C1 of the vehicle C, and a backrest portion 40 that is arranged on the back side of the user sitting on the seat portion 20, and also comprising a seat length adjustment portion 50 that allows the user to adjust the seatable length on the seat portion 20 in the fore-and-aft direction of the vehicle C, and a backrest angle adjustment portion 70 that can adjust the angle of the backrest portion 40 relative to the seat portion 20 that is adjusted by the seat length adjustment portion 50.

Description

[Technical Field]

[0001] The present disclosure relates to vehicle seats. [Background technology]

[0002] Patent Document 1 describes a sliding seat for a vehicle. This type of sliding seat has a movable seat base arranged on a pair of rails. A person sitting in the vehicle seat can adjust the position of the seat by sliding the sliding seat forward and backward according to their height, etc. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Actual opening Showa 62-097044 Summary of the Invention [Problem to be solved by the invention]

[0004] Generally, vehicles sold commercially are equipped with standard seats for reasons such as mass production. Specifically, seats are generally used that correspond to the average height of the driver and other passengers in the country where the vehicle is sold. Therefore, when a user who is not of average height, for example, a short user, sits in the seat, there is a problem that the user cannot sit in the seat in a good posture simply by adjusting the position by sliding the seat forward and backward. One object of the present disclosure is to provide a vehicle seat that allows a occupant to sit in a good posture. [Means for solving the problem]

[0005] The vehicle seat according to the present disclosure includes: a seat portion on which a vehicle user can sit; a seat slide portion that allows the seat portion to slide relative to a floor surface of the vehicle; A backrest portion disposed on the back side of a user seated on the seat portion; A vehicle seat comprising: a seat length adjustment unit that allows a user to adjust the length of the seat that can be sat on in the front-rear direction of the vehicle; and a backrest angle adjustment section that can adjust the angle of the backrest section relative to the seat section that is adjusted by the seat length adjustment section. [Effects of the Invention]

[0006] According to the technology disclosed herein, it is possible to sit in a vehicle seat in a good posture. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a side view showing a vehicle seat according to a first embodiment in which a user is seated with the backrest portion positioned rearward. [Figure 2] FIG. 2 is a plan view showing the seat length adjuster when the backrest is positioned rearward. [Figure 3] FIG. 3 is a diagram illustrating the reclining mechanism of the backrest. [Figure 4] FIG. 4 is a diagram showing the support shaft and the fixing plate of the backrest. [Figure 5] FIG. 5 is a side view showing the vehicle seat with the backrest moved forward and the user seated. [Figure 6] 10 is a plan view showing the seat length adjustment unit when the backrest is moved forward. FIG. [Figure 7] 10 is a side view showing a vehicle seat according to a second embodiment in a state in which a user is seated when the auxiliary seating portion is moved forward relative to the main seating portion. FIG. [Figure 8] 10 is a bottom view showing the seat length adjustment section when the secondary seat section is moved forward relative to the main seat section. FIG. [Figure 9] FIG. 10 is a side view showing the vehicle seat in a state where a user is seated when the auxiliary seat portion is moved rearward relative to the main seat portion; [Figure 10] 10 is a bottom view showing the seat length adjustment section when the secondary seat section is moved rearward relative to the main seat section. FIG. [Figure 11] 10 is a plan view showing a configuration in which the seatable length of the seat portion is adjusted by driving a motor in a third embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] Each of the following items [1] to [5] is an example of a vehicle seat included in the present disclosure. [1] A seat portion on which a vehicle user can sit; a seat slide portion that allows the seat portion to slide relative to a floor surface of the vehicle; A backrest portion disposed on the back side of a user seated on the seat portion; A vehicle seat comprising: a seat length adjustment unit that allows a user to adjust the length of the seat that can be sat on in the front-rear direction of the vehicle; a backrest angle adjustment unit that can adjust the angle of the backrest with respect to the seating surface that is adjusted by the seating surface length adjustment unit. Vehicle seat. The vehicle seat of [1] above can use the seat length adjustment unit to adjust the seatable length of the seat in the fore-and-aft direction of the vehicle to an appropriate seat length according to the height of the vehicle user, etc. Furthermore, with respect to the seat that is adjusted in this way, the user can adjust the angle of the backrest to an appropriate angle using the backrest angle adjustment unit. By adjusting the seat length adjustment unit and the backrest angle adjustment unit, the user getting into the vehicle can sit in the vehicle seat in a good posture.

[0009] [2] The seat length adjustment unit is a backrest slide portion fixed to the backrest portion, The backrest slide portion slides relative to the seat portion. The vehicle seat according to [1]. The vehicle seat of [2] does not necessarily require processing of the seating surface, so the seating surface length can be adjusted to an appropriate length with a simple configuration while utilizing the existing seating surface configuration.

[0010] [3] The seat portion is A main seating surface portion; A secondary seating portion; a secondary seating surface slide portion fixed to the secondary seating surface portion, The secondary bearing surface slide portion slides relative to the primary bearing surface portion. The vehicle seat according to [1]. The vehicle seat of [3] does not necessarily require processing of the backrest portion, so the seat length can be adjusted with a simple configuration while utilizing the existing backrest configuration.

[0011] [4] A connecting portion is provided to connect the backrest slide portion and the backrest portion, The connecting portion is The seat includes an extension portion that extends to the side of the seat and passes through the outside of the seat. The vehicle seat according to [2]. [4] Compared to a configuration in which, for example, a slit is formed through the seat portion and a connecting portion that connects the backrest slide portion and the backrest portion is passed through the slit, the vehicle seat of [4] can be manufactured using an existing seat portion without performing any special processing on the seat portion.

[0012] [5] A secondary seat sliding lever is provided which is connected to the secondary seat portion and slides together with the secondary seat portion, The secondary seat slide lever extends above the seat to a position where it can be operated by a user seated on the seat. The vehicle seat according to [3]. In the vehicle seat of [5], a user seated in the vehicle seat can adjust the seat length by operating the secondary seat slide lever to slide the secondary seat portion.

[0013] First Embodiment The following description relates to a vehicle seat 10 according to the first embodiment.

[0014] 1. Vehicle seat configuration Fig. 1 is a side view showing the vehicle seat with a user seated in it when the backrest 40 is in the rearward position. Fig. 2 is a plan view showing the seat length adjuster 50 when the backrest 40 is in the rearward position.

[0015] The vehicle seat 10 is placed on the floor C1 of a vehicle C such as an automobile. The vehicle seat 10 can be placed in any position such as a driver's seat or passenger seat located in the front of the vehicle C, or a rear seat located in the rear of the vehicle C. In the case of the driver's seat or passenger seat, the vehicle seat 10 is placed between one C2 and the other C3 of a side door and a member (such as a center console box) in the middle of the vehicle C.

[0016] The vehicle seat 10 includes a seat portion 20, a seat slide portion 30, a backrest portion 40, a seat length adjustment portion 50, and a backrest angle adjustment portion 70.

[0017] The seating surface 20 is, for example, a rectangular plate-like member having a predetermined thickness and is covered with a flexible cushioning material, on which a user of the vehicle C can sit. The area of ​​the upper surface of the seating surface 20 that is forward of the backrest 40 is a seating area 21A where a user can sit, and the area behind the backrest 40 is a non-seating area 21B where a user cannot sit. As will be described in detail later, the backrest 40 is slidable in the front-rear direction, and therefore the areas of the seating area 21A and the non-seating area 21B change depending on the position of the backrest 40 in the front-rear direction.

[0018] The seat portion 20 is provided on the upper surface of a box-shaped base portion 11 that is disposed on the first rail 31. The base portion 11 comprises the seat portion 20, a slide fixing portion 12 to which the first slide portion 32 is fixed, and a rail support portion 13 that supports the second rail 51. The base portion 11 has a frame portion made of, for example, a metal inside so that it can withstand the weight of the user.

[0019] The first sliding portion 32 is fixed to the slide fixing portion 12 by a fixing means (not shown) such as bolt fastening. When the first sliding portion 32 slides, the entire base portion 11 slides. The rail support portion 13 extends in the front-rear direction above the first sliding portion 32. A second rail 51 for sliding the backrest portion 40 is fixed to the upper surface of the rail support portion 13.

[0020] The seat slide portion 30 includes a pair of left and right first rails 31 fixed to the floor C1 of the vehicle C, a pair of first slide portions 32 that are slidable relative to the pair of left and right first rails 31, and a seat slide lever 35 fixed to each first slide portion 32. Each first rail 31 is made of, for example, metal, extends in the front-to-rear direction, and has a groove portion (not shown) formed on the upper surface side that extends over the entire length in the front-to-rear direction.

[0021] The first slide portion 32 has a protrusion (not shown) that fits into a groove portion of the first rail 31, and the protrusion slides within the groove portion of the first rail 31, allowing the first slide portion 32 to slide in the front-to-rear direction of the vehicle C relative to the first rail 31 while restricting movement in the left-to-right direction. The pair of left and right first slide portions 32 are connected by a seat sliding lever 35. The seat sliding lever 35 extends forward from the first slide portion 32 in a U-shape. The seat sliding lever 35 has a locking mechanism (not shown) that restricts movement of the first slide portion 32 relative to the first rail 31, and by slightly biasing the front end portion of the seat sliding lever 35 in the up-down direction, the locking mechanism is released and the first slide portion 32 becomes slidable relative to the first rail 31.

[0022] FIG. 3 is a diagram illustrating the reclining mechanism of the backrest 40. FIG. 4 is a diagram illustrating the support shaft 42 and the fixing plate 41 of the backrest 40. The backrest 40 is disposed separately (separately) from the seat 20 on the back side of a user seated on the seat 20, and the lower end of the backrest 40 (the end on the seat 20 side) has a support shaft 42 extending in the left-right direction. The reclining angle of the backrest 40 can be changed around the support shaft 42. Specifically, the reclining angle of the backrest 40 can be changed around the support shaft 42 from an angle of approximately -180 degrees, where the backrest 40 faces (contacts) the seat 20, to an angle of approximately +180 degrees, which is horizontal with respect to the upper surface (seat) of the seat 20 (an angle where the backrest 40 reclins toward the rear seat).

[0023] As shown in Fig. 4, the backrest 40 comprises a frame (not shown) that serves as a framework, a plate-shaped fixed plate 41, and a support shaft 42 fixed to the lower end of the fixed plate 41. The outer surface of the backrest 40 is covered with cushioning material, and both ends of the support shaft 42 are exposed from the cushioning material. The support shaft 42 has a fitting groove 43 into which the backrest's fixed plate 41 is fitted. The left and right ends of the support shaft 42 are provided with a disk-shaped gear part 44 having a recessed part 44A and a protruding part 44B on its outer periphery, and the gear part 44 is held at a predetermined angle (when the angle is adjusted) by the backrest angle adjustment part 70.

[0024] The seat length adjustment unit 50 allows the user to adjust the seatable length on the seat 20 in the fore-and-aft direction of the vehicle C, and as shown in Figures 1 and 2, it comprises a pair of second rails 51 arranged on the back side of the seat 20, a backrest slide unit 52 that is slidable relative to the second rails 51, and a backrest slide lever 55 fixed to the front end of the backrest slide unit 52. Each second rail 51 is made of, for example, metal, extends in the fore-and-aft direction, and has a groove (not shown) formed on the top surface that extends over the entire length in the fore-and-aft direction.

[0025] The backrest slide portion 52 has a protrusion (not shown) that fits into a groove in the second rail 51, and when the backrest slide portion 52 moves in the front-to-rear direction relative to the second rail 51, the protrusion slides within the groove. The backrest slide portion 52 and the backrest 40 are connected by a connecting portion 60. The connecting portion 60 is made of a high-strength material such as metal, and is connected to the backrest 40 so that the backrest can rotate about the support shaft 42. The connecting portion 60 includes a first extending portion 61 that extends in the left-right direction from the backrest slide portion 52 and extends to the side of the seat portion 20, a second extending portion 62 that extends upward from the outer end of the first extending portion 61 and passes outside the seat portion 20, and a third extending portion 63 that extends from the upper end of the second extending portion 62 toward the backrest 40 and is connected to the backrest 40. The third extending portion 63 has a connecting support portion 64 that rotatably supports the support shaft 42.

[0026] 2, the backrest sliding lever 55 extends forward in a U-shape from the backrest sliding portion 52. The seat length adjusting portion 50 also has a locking mechanism (not shown) that restricts the sliding movement of the backrest sliding portion 52 relative to the second rail 51. By slightly biasing the backrest sliding lever 55 up or down relative to the backrest sliding portion 52, the locking mechanism is released and the backrest sliding portion 52 becomes slidable relative to the second rail 51.

[0027] The backrest angle adjuster 70 adjusts the angle of the backrest 40 relative to the seat 20, whose seatable length in the front-to-rear direction is adjusted by the seat length adjuster 50. As shown in FIG. 3, the backrest angle adjuster 70 includes an unlocking lever 70A, a locking portion 71 that restricts rotation of the gear 44 of the support shaft 42 provided at the bottom of the backrest 40, and an elastic member 72 connected to the locking portion 71 and elastically biasing the locking portion 71. The locking lever 70A is rod-shaped, with one end rotatable around the locking shaft 70B. The locking portion 71 is fixed at its lower end to the locking shaft 70B and has a locking claw 71A at its upper end that restricts rotation of the gear 44. The locking claw 71A protrudes toward the gear 44, enters the recessed portion 44A of the gear 44, and engages with the side surface of the protruding portion 44B. When the locked state is released by lowering the unlocking lever 70A, the angle of the backrest 40 can be changed, and the user can tilt the backrest 40 to the desired angle (see the arrow in Figure 3), then return the unlocking lever 70A to return to the locked state in which the angle of the backrest 40 cannot be changed.

[0028] 2. Adjusting the seat length Fig. 5 is a side view showing a state in which a user is seated in the vehicle seat 10 with the backrest 40 moved forward. Fig. 6 is a plan view showing the seat length adjuster when the backrest 40 is moved forward.

[0029] 1, for example, when a short user sits down with the backrest 40 positioned correctly, the user's feet may not reach the floor C1 of the vehicle C, preventing the user from sitting in the seat with a good posture. In such a case, the user grasps the backrest slide lever 55 under the seat surface 20, applies vertical force to it, and pulls it forward while unlocking the locking mechanism. This causes the backrest 40 to slide forward together with the backrest angle adjustment unit 70. For example, when the user is seated on the seat surface 20 and reaches a position where the user's feet can reach the floor C1 of the vehicle C (see FIG. 5), the user can release the backrest slide lever 55. This locks the locking mechanism of the seat length adjustment unit 50, restricts the sliding movement of the backrest 40, and allows the user to sit on the seat surface 20 with a good posture.

[0030] 3.Example of effects The vehicle seat 10 comprises a seat portion 20 on which a user of the vehicle C can sit, a seat slide portion 30 that can slide the seat portion 20 relative to the floor surface C1 of the vehicle C, and a backrest portion 40 that is arranged on the back side of the user sitting on the seat portion 20, and is also equipped with a seat length adjustment portion 50 that allows the user to adjust the seatable length on the seat portion 20 in the fore-and-aft direction of the vehicle C, and a backrest angle adjustment portion 70 that can adjust the angle of the backrest portion 40 relative to the seat portion 20 that is adjusted by the seat length adjustment portion 50.

[0031] In the vehicle seat 10, the seat length adjustment unit 50 can adjust the seatable length of the seat portion 20 in the front-to-rear direction of the vehicle C to an appropriate seat length according to the height, etc., of the user of the vehicle C. Furthermore, with the seat portion 20 adjusted in this way, the user can adjust the angle of the backrest portion 40 to an appropriate angle using the backrest angle adjustment unit 70. By adjusting the seat length adjustment unit 50 and the backrest angle adjustment unit 70, the user getting into the vehicle C can sit in the vehicle seat 10 in a good posture.

[0032] The seat length adjustment section 50 has a backrest slide section 52 fixed to the backrest section 40, and since the backrest slide section 52 slides relative to the seat section 20, it is not necessary to process the seat section 20, so the seat length can be adjusted to an appropriate length with a simple configuration while utilizing the existing configuration of the seat section 20.

[0033] The seat back slide portion 52 and the seat back 40 are connected to each other by a connecting portion 60, which extends outward from the side of the seat surface 20 and includes extension portions 61 to 63 that pass through the outside of the seat surface 20. In this way, the vehicle seat 10 can be manufactured using an existing seat surface 20 without any special processing of the seat surface 20, as compared to a configuration in which a slit is formed through the seat surface 20 and the connecting portion 60 that connects the seat back slide portion 52 and the seat back 40 passes through the slit.

[0034] Second Embodiment The following description relates to a vehicle seat 80 according to the second embodiment. In the first embodiment, the backrest 40 is configured to move forward and backward to change the seatable length of the seat surface 81, but in the second embodiment, the position of the backrest 40 in the forward and backward direction remains unchanged, but the length of the seat surface 81 in the forward and backward direction is changed. In the following, components common to the first embodiment are assigned the same reference numerals, and description thereof will be omitted.

[0035] 1. Vehicle seat configuration Fig. 7 is a side view showing the vehicle seat 80 with the user seated when the secondary seat cushion 83 has been moved forward. Fig. 8 is a bottom view showing the seat length adjuster 90 when the secondary seat cushion 83 has been moved forward.

[0036] The vehicle seat 80 includes a seat portion 81, a seat slide portion 30, a backrest portion 40, a seat length adjustment portion 90, and a backrest angle adjustment portion 70.

[0037] The seating surface portion 81 allows a user of the vehicle C to sit on it, and includes a main seating surface portion 82, a secondary seating surface portion 83, and a secondary seating surface slide portion 92 fixed to the secondary seating surface portion 83. The main seating surface portion 82 is, for example, a rectangular plate-like portion with a predetermined thickness, and is covered with a flexible cushioning material. The main seating surface portion 82 is provided on the upper surface of a box-shaped base portion 84 disposed on the first rail 31. The base portion 84 includes the main seating surface portion 82, a slide fixing portion 12 to which the first slide portion 32 is fixed, and The base portion 11 has a metal frame portion inside, for example, so that it can withstand the weight of the user.

[0038] The secondary seating surface portion 83 is, for example, a rectangular plate-like shape, is covered with a soft cushioning material, is thicker than the main seating surface portion 82, and is arranged below the main seating surface portion 82 with a size slightly smaller than that of the main seating surface portion 82.

[0039] The seat length adjustment unit 90 allows the user to adjust the seatable length on the seat 20 in the front-to-rear direction of the vehicle C, and includes a pair of second rails 91 fixed to the rear surface of the seat 20, a secondary seat slide unit 92 that is slidable relative to the second rails 91, and a secondary seat slide lever 93 fixed to the secondary seat slide unit 92. Each second rail 91 is made of, for example, metal, extends in the front-to-rear direction, and has a groove (not shown) formed on the upper surface that extends over the entire length in the front-to-rear direction.

[0040] The secondary seat slide portion 92 is fixed to the secondary seat portion 83 by a fastening means (not shown), such as a bolt, and has a protrusion (not shown) that is fitted into a groove portion of the second rail 91, and when the secondary seat slide portion 92 moves in the forward / backward direction relative to the second rail 91, the protrusion slides within the groove portion.

[0041] The secondary seat slide lever 93 is connected to at least one of the secondary seat portion 83 and the secondary seat slide portion 92 and is slidable together with the secondary seat portion 83. The secondary seat slide lever 93 extends above the main seat portion 82 to a position where it can be operated by a user seated on the seat portion 81. The seat length adjustment portion 90 has a locking mechanism (not shown) that restricts movement of the secondary seat slide portion 92 relative to the second rail 91. The locking mechanism restricts movement of the secondary seat portion 83, for example, by rotating or biasing the secondary seat slide lever 93 in one direction. Also, the restriction on movement of the secondary seat portion 83 is released by rotating or biasing the secondary seat slide lever 93 in the opposite direction. Note that, for example, a lock button may be provided on the secondary seat slide lever 93, and the secondary seat portion 83 may be locked or unlocked by pressing the lock button.

[0042] The backrest angle adjustment unit 70 allows the angle of the backrest 40 to be adjusted relative to the seat 81, which is adjusted by the seat length adjustment unit 90, and includes a locking unit 71 that restricts the rotation of the gear unit 44 of the support shaft 42 provided at the bottom of the backrest 40, and an elastic member 72 that is connected to the locking unit 71 and elastically biases the locking unit 71 (see Figure 3).

[0043] 2. Adjusting the seat length Fig. 9 is a side view showing the vehicle seat 80 in a state in which a user is seated when the secondary seating surface 83 is moved rearward relative to the main seating surface 82. Fig. 8 is a bottom view showing the seat length adjustment unit 90 when the secondary seating surface 83 is moved rearward relative to the main seating surface 82.

[0044] In the vehicle seat 80 of FIG. 7, for example, when a short user sits down with the backrest 40 positioned correctly, the user's feet may not reach the floor C1 of the vehicle C, preventing the user from sitting in a good posture. In such a case, the user, while seated on the main seat portion 82, grasps the secondary seat slide lever 93 and pushes it rearward while unlocking the locking mechanism (by biasing it diagonally or pressing the unlock button, etc.). This causes the secondary seat portion 83 to slide rearward. For example, when the user is seated on the seat portion 81 and reaches a position where the user's feet can reach the floor C1 of the vehicle C (see FIG. 9), the user can lock the locking mechanism (by operating the lock button or releasing the biasing force of the secondary seat slide lever 93, etc.). This locks the locking mechanism of the seat length adjustment portion 90, restricts the sliding movement of the secondary seat portion 83, and allows the user to sit on the seat portion 81 in a good posture.

[0045] 3.Example of effects The seat portion 81 comprises a main seat portion 82, a secondary seat portion 83, and a secondary seat slide portion 92 fixed to the secondary seat portion 83. The secondary seat slide portion 92 slides relative to the main seat portion 82, so that it is not necessary to process the backrest portion 40. Therefore, the seat length can be adjusted with a simple configuration while utilizing the configuration of the existing backrest portion 40.

[0046] A secondary seat slide lever 93 is provided which is connected to the secondary seat portion 83 and slides together with the secondary seat portion 83, and the secondary seat slide lever 93 extends above the seat portion 81 to a position where it can be operated by a user seated on the seat portion 81. A user seated on the vehicle seat 80 can adjust the seat length by operating the secondary seat slide lever 93 to slide the secondary seat portion 83.

[0047] Third Embodiment The following description relates to a vehicle seat 100 according to the third embodiment. In the first embodiment, the length of the seat surface 20 in the front-rear direction on which a user can sit in the vehicle seat 10 is manually adjusted, but in the third embodiment, the length of the seat surface 20 in the front-rear direction is electrically adjusted. In the following, the same components as those in the above embodiments are denoted by the same reference numerals, and the description thereof will be omitted.

[0048] 11 is a plan view showing a configuration in which the seatable length of the seating surface portion 20 is adjusted by driving a motor 96. The vehicle seat 100 includes a drive unit 95 that connects the pair of left and right backrest slide portions 52 together, instead of the backrest slide lever 55 of the first embodiment. The drive unit 95 includes an electric wire W, a motor 96 that can receive power via the electric wire W, and a shaft portion 97 that is coaxially connected to the shaft portion of the motor 96. A gear mechanism that converts rotational motion into linear motion is provided between the end of the shaft portion 97 and the backrest slide portion 52. Similarly, in the second embodiment, the secondary seating surface portion 83 may also be slid electrically.

[0049] <Other embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, any combination of features of the above-described or following embodiments is possible within a range that does not contradict. Furthermore, any feature of the above-described or following embodiments may be omitted unless explicitly stated as essential. Furthermore, the above-described embodiments may be modified as follows.

[0050] The configuration for adjusting the length of the seat portion in the front-rear direction and the configuration for tilting the backrest portion 40 are not limited to the mechanisms in the above embodiment, and various configurations can be adopted.

[0051] It should be noted that the embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is not limited to the embodiments disclosed herein, but is intended to include all modifications within the scope indicated by the claims or the scope equivalent to the claims. [Explanation of symbols]

[0052] 10, 80, 100: Vehicle seats 20,81: Seat part 30: Seat slide part 31: First Rail 32: First slide 40: Backrest 50,90: Seat length adjustment 51,91: Second rail 52: Backrest slide 55: Backrest slide lever 60: Connection part 61~63: Extension part 70: Backrest angle adjustment 82: Main seat part 83: Secondary seat part 92: Sub-seat slide 93: Sub-seat slide lever C1: Floor surface C: Vehicle

Claims

1. a seat portion on which a vehicle user can sit; a seat slide portion that allows the seat portion to slide relative to a floor surface of the vehicle; A backrest portion disposed on the back side of a user seated on the seat portion; A vehicle seat comprising: a seat length adjustment unit that allows a user to adjust the length of the seat that can be sat on in the front-rear direction of the vehicle; a backrest angle adjustment unit that can adjust the angle of the backrest with respect to the seat portion adjusted by the seat length adjustment unit, The seat portion is a main seating surface covered with a cushioning material; A secondary seating surface portion disposed below the primary seating surface portion and covered with a cushioning material; a secondary seating surface slide portion fixed to the secondary seating surface portion, The main seating surface portion and the sub-seating surface portion are disposed at different positions in the vertical direction, The secondary bearing surface slide portion slides relative to the primary bearing surface portion, When the auxiliary seating surface portion is moved forward, the upper surface of the auxiliary seating surface portion is disposed below the upper surface of the main seating surface portion, and when the auxiliary seating surface portion is moved at least rearward, the rear end portion of the auxiliary seating surface portion slides to a position below the backrest portion while vertically overlapping with the main seating surface portion. Vehicle seat.

2. The secondary bearing surface portion has a thickness dimension greater than that of the main bearing surface portion. The vehicle seat according to claim 1 .

3. a secondary seat slide lever connected to the secondary seat portion and sliding together with the secondary seat portion; The secondary seat slide lever extends above the seat to a position where it can be operated by a user seated on the seat. The vehicle seat according to claim 1 or 2.

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