Vehicle seat

Abstract

To provide a vehicle seat excellent in usability facilitating switching an arm rest between a storage state and a use state without depending on a position of a seatback.SOLUTION: A vehicle seat 10 provided in a vehicle includes: a seatback 11 to be a back rest; a seat cushion 12 having a seating face 12a; an arm rest 13 disposed in the side part of the seat cushion 12; and an arm rest fitting mechanism part 20 for fitting the arm rest 13 to the seat cushion 12. The arm rest fitting mechanism part 20 has a plurality of link arms 21, 22 for connecting the arm rest 13 and the seat cushion 12 so that the arm rest 13 can be lifted up and down in a state of holding a horizontal position between a storage position Q1 and a use position Q2.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat to be provided in a vehicle. [Background technology]

[0002] Patent Document 1 below discloses a conventional vehicle seat. This vehicle seat includes a seat cushion, a seat back connected to the seat cushion, and an armrest. In the armrest, a stay supporting the armrest body is pivotally supported on the side of the seat cushion. With this vehicle seat, the armrest can be rotated between an armless use position, in which the armrest surface of the armrest body is positioned horizontally, and an armless storage position, in which the armrest surface of the armrest body is positioned vertically. This allows the position of the armrest to be changed independently of the position of the seat back. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-188014 Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned vehicle seat is disclosed as having a first structure in which the armrest body is fixed to a stay, and a second structure in which the armrest body is pivotally supported on the stay. In the first structure, when the armrest is stowed, the rear end of the armrest body protrudes above the seat surface of the seat cushion. Therefore, the armrest body gets in the way when the armrest is stowed, which can cause a problem of poor usability. In the second structure, the armrest is set to the stowed state by rotating the armrest relative to the seat cushion and then rotating and folding the armrest body relative to the stay. This prevents the rear end of the armrest body from protruding above the seat surface of the seat cushion when the armrest is stowed. However, with the second structure, both the armrest rotation and the folding of the armrest body are required to stow the armrest, and the reverse operation is required to use the armrest. Therefore, the second structure has the problem of cumbersome operations when switching the armrest between the stowed state and the used state.

[0005] The present invention has been made in consideration of such problems, and aims to provide a vehicle seat with excellent usability, in which the armrest can be easily switched between a stored state and a used state regardless of the position of the seat back. [Means for solving the problem]

[0006] One aspect of the present invention is A vehicle seat provided in a vehicle, A seat back that serves as a backrest, a seat cushion having a seating surface; an armrest provided on a side of the seat cushion; an armrest attachment mechanism that attaches the armrest to the seat cushion; Equipped with the armrest attachment mechanism has a plurality of link arms connecting the armrest and the seat cushion so that the armrest can be raised and lowered while maintaining a horizontal posture between a storage position and a use position; is located. [Effects of the Invention]

[0007] In the vehicle seat of the above aspect, the armrest is provided on a side of the seat cushion and is configured to be attached to the seat cushion by an armrest attachment mechanism. This allows the armrest to move independently of the seat back, regardless of the position of the seat back. The armrest and the seat cushion are connected by multiple link arms of the armrest attachment mechanism, which allows the armrest to be raised and lowered while maintaining a horizontal position between the stored position and the used position. This allows the occupant to easily switch the armrest between the stored state and the used state without changing its position.

[0008] As described above, according to the above-described aspect, a vehicle seat with excellent usability can be provided in which the armrest can be easily switched between a stored state and a used state without depending on the position of the seat back. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a side view showing a seat arrangement of a vehicle seat according to a first embodiment. [Figure 2] 1 is a side view of the vehicle seat according to the first embodiment, showing the armrest in a stored state. [Figure 3] FIG. 3 is a side view of the vehicle seat of FIG. 2 in a tip-up state. [Figure 4] FIG. 3 is an enlarged side view of the seat cushion in FIG. 2. [Figure 5] FIG. 5 is an enlarged side view of the armrest attachment mechanism shown in FIG. 4. [Figure 6] FIG. 5 is a side view of the seat cushion of FIG. 4 in an unlocked state. [Figure 7] FIG. 7 is an enlarged side view of the armrest attachment mechanism shown in FIG. 6. [Figure 8] 3 is a side view of the armrest of the vehicle seat of FIG. 2 in use. FIG. [Figure 9] FIG. 9 is an enlarged side view of the seat cushion in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0010] In the vehicle seat of the above-described aspect, it is preferable that the armrest mounting mechanism portion has an assist member that assists the movement of the armrest toward the use position, a lock member that locks the relative movement of the multiple link arms when the armrest is in the stored position, and an unlock member that releases the lock by the lock member.

[0011] According to this vehicle seat, the armrest is held in the stowed position by locking the relative movement of the multiple link arms with the locking member. Meanwhile, the armrest can be raised from the stowed position to the use position when the locking member is released by the lock release member. At this time, the movement of the armrest toward the use position is assisted by the assist member, allowing the occupant to easily raise the armrest to the use position.

[0012] In the vehicle seat of the above aspect, the armrest attachment mechanism is preferably configured so that operation of the lock release member is disabled when the armrest is in the use position.

[0013] According to this vehicle seat, operation of the unlocking member is invalid when the armrest is in the use position, so that the retained state of the armrest can be prevented from being released by operation of the unlocking member.

[0014] In the vehicle seat of the above-described aspect, it is preferable that the multiple link arms are configured to extend along the occupant load input direction to the armrest in a position that supports the armrest from below when the armrest is in the use position.

[0015] According to this vehicle seat, when a load is input to the armrest from the occupant load input direction, the plurality of link arms can be restricted from pivoting in accordance with this load input.

[0016] In the vehicle seat of the above aspect, it is preferable that the armrest mounting mechanism is configured so that the armrest surface of the arm body forms part of the seat surface of the seat cushion when the armrest is in the stored position.

[0017] This vehicle seat employs a structure in which the armrest is stored in the seat cushion, improving the appearance of the seat cushion when the armrest is in the stored position. It also prevents the armrest from interfering with getting in and out of the vehicle. Furthermore, the seat cushion's seat surface can be widened to provide more space.

[0018] Hereinafter, specific embodiments of the vehicle seat of the above aspect will be described with reference to the drawings.

[0019] In the drawings referred to in the following description, the front of the vehicle is indicated by arrow FR, the right side of the vehicle is indicated by arrow RH, the left side of the vehicle is indicated by arrow LH, and the top of the vehicle is indicated by arrow UP. Furthermore, unless otherwise specified, the first direction corresponding to the vehicle width direction is indicated by arrow X, the second direction corresponding to the vehicle height direction is indicated by arrow Y, and the third direction corresponding to the vehicle length direction is indicated by arrow Z.

[0020] (Embodiment 1) 1, a vehicle 1 according to the first embodiment has a seat arrangement structure with multiple rows arranged on a floor 2. In this seat arrangement structure, two vehicle seats 10, which are rear seats (second seats), are arranged behind two vehicle seats 3, which are front seats (front seats).

[0021] The vehicle seat 10 includes a seat back 11 that serves as a backrest, a seat cushion 12 having a seat surface 12a, and armrests 13 provided on the sides of the seat cushion 12. The seat back 11 is of a type that includes a headrest. The armrests 13 are provided on both sides of the seat cushion 12 in the first direction X. Such a vehicle seat 10 is also generally referred to as a "captain seat."

[0022] The vehicle seat 10 has a sliding structure (not shown) that allows sliding in the third direction Z. This sliding structure makes it possible to expand the vehicle interior space and change the seat arrangement.

[0023] The seat arrangement structure in the vehicle 1 is merely illustrative and is not limited to that shown in Fig. 1. For example, a separate rear seat (third seat) may be arranged behind the vehicle seat 10. Also, in the vehicle seat 10, the armrest 13 may be provided on only one side of the seat cushion 12 in the first direction X.

[0024] By providing the armrest 13 on the seat cushion 12, there are no restrictions on the design of the seat back 11, and it is possible to improve the degree of freedom in the design of the seat back 11. For example, it is possible to realize a thin structure in which the thickness dimension of the seat back 11 is kept low.

[0025] 1. Structure of the vehicle seat 10 As shown in FIG. 2, in a vehicle seat 10 (hereinafter simply referred to as "seat 10"), a seat back 11 is supported by a main body 10a so as to be rotatable about a rotation center 10b. Therefore, the seat back 11 can be rotated between an upright position shown in FIG. 2 and a forward-leaning position (not shown). A seat cushion 12 is supported by the main body 10a so as to be rotatable about a rotation center 10c. Therefore, the seat cushion 12 can be rotated between a normal use position P1 shown in FIG. 2 and a tip-up position P2 shown in FIG. 3. The armrest 13 includes an armrest main body 14 having an armrest surface 14a, and brackets 15 and 17 fixed to a frame portion (not shown) that forms the framework of the armrest main body 14.

[0026] Although not specifically shown, the seat back 11, the seat cushion 12, and the armrest main body 14 are all covered with a flexible skin material. The material of the skin material is not particularly limited as long as it is flexible. For example, materials such as genuine leather, artificial leather, PVC leather, and fabric can be used as appropriate.

[0027] The seat 10 is equipped with an armrest attachment mechanism 20 for attaching the armrest 13 to the seat cushion 12. The armrest attachment mechanism 20 has two link arms 21, 22. The two link arms 21, 22 extend parallel to each other and form a parallel link structure that connects the brackets 15, 17 of the armrest 13 to a frame portion (not shown) that forms the framework of the seat cushion 12. For ease of explanation, the frame portion of the seat cushion 12 to which the link arms 21, 22 are connected will hereinafter be referred to simply as the "seat cushion 12."

[0028] The armrest mounting mechanism 20 is configured to utilize a parallel link structure consisting of two link arms 21, 22 so that the armrest 13 can be raised and lowered while maintaining a horizontal posture between a storage position Q1 (position indicated by a solid line) and a use position Q2 (position indicated by a dotted line).

[0029] The "horizontal position" here refers to a position in which the armrest 13 extends horizontally, and broadly encompasses not only a position in which the armrest 13 extends horizontally but also a position in which the armrest 13 is slightly tilted relative to the horizontal. Furthermore, the "state in which the horizontal position is maintained" here broadly encompasses not only a state in which the armrest 13 moves between the storage position Q1 and the use position Q2 while remaining in the same horizontal position, but also a state in which the armrest 13 moves with some change in its horizontal position.

[0030] The armrest attachment mechanism 20 allows the armrest 13 to be placed in the storage position Q1 when the seat cushion 12 is in the normal use position P1. When the armrest 13 is in the storage position Q1, the armrest main body 14 is placed so that its armrest surface 14a is generally flush with the seat surface 12a of the seat cushion 12. At this time, the armrest 13 is stored and integrated with the seat cushion 12, and the armrest surface 14a of the armrest main body 14 forms part of the seat surface 12a of the seat cushion 12.

[0031] By adopting a structure in which the armrest 13 is stored in the seat cushion 12, the appearance of the seat cushion 12 when the armrest 13 is in the storage position Q1 is improved. Also, the armrest 13 is prevented from interfering with getting in and out of the vehicle. Furthermore, by widening the seat surface 12a of the seat cushion 12 in the first direction X, the space can be expanded.

[0032] The armrest attachment mechanism 20 allows the armrest 13 to be positioned at a use position Q2 above the storage position Q1 when the seat cushion 12 is in the normal use position P1. When the armrest 13 is in the use position Q2, the armrest body 14 is positioned so that the position of the armrest surface 14a in the second direction Y is at a height suitable for the armrest of an occupant (not shown) seated on the seat surface 12a of the seat cushion 12.

[0033] As shown in Figure 3, when sliding the seat 10 to expand the vehicle interior space or change the seat arrangement, it is preferable to rotate the seat cushion 12 from the normal use position P1 (position indicated by the two-dot chain line) to the tip-up position P2 (position indicated by the solid line) to shorten the dimension of the seat 10 in the third direction Z. At this time, the armrest 13 rotates together with the seat cushion 12 while remaining in the storage position Q1. This prevents the armrest 13 from affecting the tip-up operation of the seat cushion 12, and allows for the same specifications as a structure without the armrest 13 to be realized.

[0034] 2. Armrest mounting mechanism structure As shown in FIG. 4, the armrest attachment mechanism 20 includes, in addition to the two link arms 21 and 22, a damper 23, a lock pin 26, a lock cam bracket 27, and a lock release lever 29.

[0035] Both link arms 21 and 22 are plate members that extend linearly and have a thickness direction that is the first direction X. Link arm 21 has one end 21a rotatably connected to bracket 15 of armrest 13, and the other end 21b rotatably connected to seat cushion 12. Similarly, link arm 22 has one end 22a rotatably connected to bracket 15 of armrest 13, and the other end 22b rotatably connected to seat cushion 12.

[0036] The damper 23 has a cylinder 24 filled with oil and a rod 25 connected to a piston slidably housed in the cylinder 24. One end 24a of the cylinder 24 is rotatably connected to an intermediate portion of the link arm 22 between one end 22a and the other end 22b. One end 25a of the rod 25 is rotatably connected to the bracket 17 of the armrest 13.

[0037] The damper 23 functions as an assisting member that assists the movement of the armrest 13 toward the use position Q2 by generating an assisting force when the occupant pulls up the armrest 13 from the storage position Q1 to the use position Q2. This helps the occupant pull up the armrest 13 to the storage position Q1, making it easier for the occupant to perform the operation of raising the armrest 13 to the use position Q2. The damper 23 also functions as a retaining member that retains the armrest 13 at the use position Q2 when the occupant releases their hand from the armrest 13 at the use position Q2. This allows the damper 23 to maintain the horizontal position of the armrest 13 at the use position Q2.

[0038] The lock pin 26 is a locking member that cooperates with the lock cam bracket 27 to lock the relative movement of the two link arms 21, 22 when the armrest 13 is in the storage position Q1. The lock pin 26 is provided on the link arm 22 so as to protrude in a first direction from the surface of the link arm 22. The lock pin 26 is configured to constantly engage with an engagement groove 28 provided in the lock cam bracket 27.

[0039] The lock cam bracket 27 is a locking member that cooperates with the lock pin 26 to lock the relative movement of the two link arms 21, 22 when the armrest 13 is in the storage position Q1. The lock cam bracket 27 is a plate member whose thickness direction is the first direction X. The lock cam bracket 27 has an intermediate portion 27a rotatably connected to the link arm 21, a first arm portion 27b extending to one end side with the intermediate portion 27a in between, and a second arm portion 27c extending to the other end side with the intermediate portion 27a in between. An engagement groove 28 is formed through the second arm portion 27c. A spring member 27d is provided in the intermediate portion 27a. The lock cam bracket 27 is constantly elastically biased by the spring member 27d so as to be rotatable in the rotation direction D1 around the intermediate portion 27a relative to the link arm 21.

[0040] As shown in FIG. 5 , the engagement groove 28 of the lock cam bracket 27 has a linearly extending central groove 28a, an inclined groove 28b extending obliquely from one end of the central groove 28a, and an inclined groove 28c extending obliquely from the other end of the central groove 28a. When the armrest 13 is in the storage position Q1, the lock cam bracket 27 rotates about the middle portion 27a in the rotation direction D1 due to the elastic biasing force of the spring member 27d and the gravitational load due to the lock cam bracket 27's own weight, and the lock pin 26 enters the inclined groove 28b of the engagement groove 28. At this time, the lock cam bracket 27 connects the two link arms 21, 22 so as to lock their relative movement. Therefore, the two link arms 21, 22 are fixed, and the armrest 13 is locked in the storage position Q1.

[0041] 4 and 5, the unlocking lever 29 is an unlocking member for unlocking the relative movement of the two link arms 21, 22 locked by the lock pin 26 and the lock cam bracket 27. The unlocking lever 29 has an intermediate portion 29a rotatably connected to the bracket 15 of the armrest 13, a first arm portion 29b extending from one end side across the intermediate portion 29a, and a second arm portion 29c extending from the other end side across the intermediate portion 29a. The first arm portion 29b is an operated portion that is operated by the occupant. A rotatable roller is provided at the tip of the second arm portion 29c.

[0042] A spring member 29d is provided on the middle portion 29a of the unlocking lever 29. The unlocking lever 29 is constantly elastically biased by this spring member 29d so that it can rotate in the rotation direction D2 around the middle portion 29a relative to the bracket 15. Meanwhile, the bracket 15 is provided with a stopper 16 for preventing the unlocking lever 29 from rotating in the rotation direction D2 from the first position R1. As a result, the unlocking lever 29 is configured to be held in the first position R1 in an initial state in which no external force is applied.

[0043] 3. Operation when using armrest 13 6 and 7, when using the armrest 13 in use position Q2, the occupant first performs an unlocking operation by pulling up the first arm portion 29b of the lock release lever 29. This unlocking operation causes the lock release lever 29 to rotate about the intermediate portion 29a from the first position R1 (position indicated by the two-dot chain line) to the second position R2 (position indicated by the solid line) against the elastic biasing force of the spring member 29d in the rotation direction D2. Then, the roller at the tip of the second arm portion 29c of the lock release lever 29 presses against the second arm portion 27c of the lock cam bracket 27.

[0044] Lock cam bracket 27 rotates about intermediate portion 27a against the elastic biasing force of spring member 27d in rotation direction D1. That is, lock cam bracket 27 rotates in conjunction with lock release lever 29. At this time, as lock cam bracket 27 rotates, lock pin 26 disengages from inclined groove portion 28b of engagement groove 28 and is guided to central groove portion 28a. This releases the state in which the two link arms 21, 22 are fixed by lock cam bracket 27, and the two link arms 21, 22 enter an unlocked state in which the relative movement of the two link arms 21, 22 is no longer locked.

[0045] Therefore, the occupant can pull up the armrest 13 obliquely upward and rearward from the storage position Q1 toward the use position Q2. Therefore, instead of operating the lock release lever 29, the occupant uses the assist function of the damper 23 to pull up the armrest 13 toward the use position Q2. At this time, the lock pin 26 slides through the central groove portion 28a of the engagement groove 28 toward the inclined groove portion 28c, as shown by the arrow in FIG. 7. Then, when the armrest 13 reaches the use position Q2, the lock pin 26 is inserted into the inclined groove portion 28c of the engagement groove 28. The lock release lever 29 returns to the second position R2 due to the elastic force of the spring member 29d.

[0046] As shown in Figures 8 and 9, the armrest 13 is pulled up by the occupant and placed in the use position Q2. At this time, the lock pin 26 is inserted into the inclined groove portion 28c of the engagement groove 28, and movement of the lock pin 26 out of the inclined groove portion 28c is restricted by the cooperation of the elastic biasing force of the spring member 27d in the rotation direction D1 and the gravitational load due to the weight of the lock cam bracket 27. In addition, a holding force is applied to the armrest 13 in the use position Q2 from the damper 23. Therefore, the armrest 13 is less likely to move forward from the use position Q2.

[0047] As shown in Figure 9, the two link arms 21, 22 are configured to extend in an occupant load input direction A relative to the armrest 13 in positions that support the armrest 13 from below when the armrest 13 is in the use position Q2. The load related to the occupant load input direction A is a downward load that is input from the occupant to the armrest surface 14a of the armrest main body 14 when the armrest 13 is in use. With this configuration, when a load is input to the armrest 13 from the occupant load input direction A, the two link arms 21, 22 can be restricted from pivoting forward in response to this load input. As a result, the armrest 13 is less likely to move forward from the use position Q2, thereby enhancing its function.

[0048] In this embodiment, the armrest attachment mechanism 20 is configured so that operation of the unlock lever 29 is disabled when the armrest 13 is in the use position Q2. That is, as shown in FIG. 9 , when the armrest 13 is in the use position Q2, the lock cam bracket 27 is positioned so that the second arm portion 27c of the lock release lever 29 is located lower than the bottom locus L of the roller at the tip of the second arm portion 29c of the lock release lever 29. At this time, the lock release lever 29 is in a so-called "idle state," a state in which it can rotate without interfering with the second arm portion 27c of the lock cam bracket 27 between the first position R1 and the third position R3. That is, while the lock release lever 29 is rotated, for example, from the first position R1 to the third position R3 against the elastic biasing force of the spring member 29d in the rotation direction D2, the lock release lever 29 does not interfere with the lock cam bracket 27. In this way, operation of the unlocking lever 29 is invalid when the armrest 13 is in the use position Q2, so that the holding state of the armrest 13 can be prevented from being released by operation of the unlocking lever 29.

[0049] 4. Armrest 13 storage operation When storing the armrest 13 in the storage position Q1 on the seat cushion 12, the occupant first presses the armrest 13 forward from the use position Q2 (for example, in the direction of arrow B in FIG. 9). This operation is performed so that the lock pin 26 comes out of the inclined groove portion 28c of the engagement groove 28, allowing the two link arms 21, 22 to move relative to each other. The occupant then presses the armrest 13 diagonally downward and forward from the use position Q2 toward the storage position Q1. The movement of the armrest attachment mechanism 20 at this time is opposite to that when the armrest 13 is operated when in use.

[0050] When the armrest 13 reaches the storage position Q1, the lock pin 26 is inserted into the inclined groove portion 28b of the engagement groove 28 (see FIG. 5). At this time, the lock cam bracket 27 connects the two link arms 21, 22 so as to lock their relative movement. Therefore, the two link arms 21, 22 are fixed, and the armrest 13 is locked in the storage position Q1.

[0051] 5. Effects Next, the effects of the above-described first embodiment will be described.

[0052] In the seat 10 of the first embodiment, the armrest 13 is provided on the side of the seat cushion 12 and is configured to be attached to the seat cushion 12 by an armrest attachment mechanism 20. This allows the armrest 13 to move independently of the seat back 11, without depending on the position of the seat back 11. The armrest 13 and the seat cushion 12 are connected by two link arms 21, 22 of the armrest attachment mechanism 20, which allows the armrest 13 to move up and down while maintaining a horizontal position between a storage position Q1 and a use position Q2. This allows the occupant to easily switch the armrest 13 between the storage state and the use state without changing its position.

[0053] Therefore, according to the first embodiment, it is possible to provide a seat 10 with excellent usability in which the armrest 13 can be easily switched between a stored state and a used state without depending on the position of the seat back 11.

[0054] The present invention is not limited to the exemplary embodiments described above, and various applications and modifications are possible without departing from the scope of the present invention. For example, the following embodiments can be implemented by applying the above embodiments.

[0055] In the embodiment described above, the number of link arms connecting the armrest 13 and the seat cushion 12 is two, but the number of link arms may be changed to three or more as needed.

[0056] In the above embodiment, an example is given of the case where the armrest 13 and the link arm 22 are connected by the damper 23, but a spring member may be used instead of the damper 23, and this spring member may provide the function of assisting the movement of the armrest 13 toward the use position Q2.

[0057] In the above embodiment, an example is given of a case where the occupant switches the armrest 13 between the stored state and the used state, but instead, the armrest 13 may be switched between the stored state and the used state by using the driving force of an actuator such as an electric motor.

[0058] In the above embodiment, an example is given of a case where operation of the lock release lever 29 is disabled by positioning the lock cam bracket 27 in a position where the lock release lever 29 does not interfere with the second arm portion 27c when the armrest 13 is in the use position Q2. However, instead of this, for example, operation of the lock release lever 29 may be disabled by adding a locking mechanism that locks the movement of the lock release lever 29 itself.

[0059] In the above embodiment, an example is given of the case where the armrest 13 and the armrest mounting mechanism 20 are provided on the seat 10, which is a second seat, but instead of or in addition to the seat 10, the armrest 13 and the armrest mounting mechanism 20 may also be provided on another vehicle seat such as a front seat, a third seat, or a bench seat. [Explanation of symbols]

[0060] 1...vehicle, 10...vehicle seat (seat), 11...seat back, 12...seat cushion, 12a...seat surface, 13...armrest, 14...armrest main body, 14a...armrest surface, 20...armrest mounting mechanism, 21, 22...link arm, 23...damper (assist member), 26...lock pin (lock member), 27...lock cam bracket (lock member), 29...lock release lever (lock release member), A...occupant load input direction, Q1...storage position, Q2...usage position

Claims

1. A vehicle seat provided in a vehicle, A seat back that serves as a backrest, a seat cushion having a seating surface; an armrest provided on a side of the seat cushion; an armrest attachment mechanism that attaches the armrest to the seat cushion; Equipped with The armrest mounting mechanism has a plurality of link arms that connect the armrest and the seat cushion so that the armrest can be raised and lowered while maintaining a horizontal posture between a storage position and a use position.

2. 2. The vehicle seat according to claim 1, wherein the armrest mounting mechanism includes an assist member that assists the movement of the armrest toward the use position, a lock member that locks the relative movement of the plurality of link arms when the armrest is in the storage position, and an unlock member that releases the locking by the lock member.

3. 3. The vehicle seat according to claim 2, wherein the armrest attachment mechanism is configured such that operation of the lock release member is disabled when the armrest is in the use position.

4. The vehicle seat according to any one of claims 1 to 3, wherein the plurality of link arms are configured to extend along an occupant load input direction relative to the armrest and are positioned to support the armrest from below when the armrest is in the use position.

5. The armrest mounting mechanism is configured so that an armrest surface of the armrest body forms part of the seat surface of the seat cushion when the armrest is in the storage position. The vehicle seat according to any one of claims 1 to 3.

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