JP2010284254A - Vehicle seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle seat whose bank parts disposed on both sides of the seat in the width direction are attachable on and detachable from the seat body part and replaceable to a pattern different in height, design, or the like. <P>SOLUTION: A seat back 10 constituting the vehicle seat has the bank parts on both sides in the width direction of the vehicle seat formed to project toward the seating position direction of a seater from the seat contact face of the center section. The bank part forming sections 30 to form these bank parts are formed as constituent members different from the seat body part 20 that structures the basic outline of the seat back 10 and are detachably mounted by detachable connection means 40 provided between the bank part forming sections 30 and the bank part disposing positions of a resin frame body 24 being a constituent member of the seat body part 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle seat. More specifically, the present invention relates to a vehicle seat having a bank portion that is formed such that both sides in the width direction of the seat protrude toward the seating posture position direction of the seated person with respect to the seating contact surface at the center position.

  The vehicle seat is roughly divided into a seat cushion on which a seated person sits, and a seat back that becomes a backrest when seated. Banks for holding the seating posture of the seat occupant are formed at both side positions of the seat cushion and the seat back so as to protrude toward the seating posture position of the seat occupant. The bank portion that protrudes toward the seating posture position direction of the seated person is conventionally an integral form that is not considered to be removed from the seat body that forms the basic outline structure of the seat cushion or the seat back. It is configured. For example, in the sheet of Patent Document 1 below, an arrowhead-shaped stopper is provided on the bank, and the stopper is fixed to the bank base of the sheet main body. In Patent Document 2 below, a holder cover portion is provided on the bank portion, and the holder cover portion is fixed so as to cover the bank base portion of the sheet main body portion. Moreover, in the following patent document 3, it has taken the structure fixed by covering the pad which forms a bank part with the skin member of an integral shape with the bank base of a sheet | seat main-body part. By these methods, bank portions projecting in the seat occupant position direction from the center portion are formed on both sides in the width direction of the seat to hold the seat occupant.

JP 11-75986 A JP-A-11-75987 JP-A-11-151134

By the way, the height of the bank part formed on both sides of the above-mentioned seat differs depending on the use of a vehicle such as an automobile on which the seat is mounted. For example, in a seat mounted on a sports car, it is common to make the bank portion higher than a seat mounted on a normal passenger car. The preferred height of the bank may differ depending on the physical characteristics of the seated person sitting on the seat. Further, particularly in women who demand fashionability for a sheet, there is a case in which a change is required on the assumption that the pattern of the skin of the bank is changed even though the height of the bank is the same.
However, since all the conventional seats described above are configured as an integral form in which the bank part is not considered to be removed from the seat body part, the bank part remains in its original form, depending on the preference of the seated person It was not possible to change the height or the pattern of the epidermis. If you wanted to change it to your liking, you had to replace the entire seat on the vehicle.

  Thus, the present invention has been devised in view of the above points, and the problem to be solved by the present invention is that the bank portions disposed on both sides in the width direction of the sheet are arranged with respect to the sheet main body portion. The bank portion can be replaced with a different shape such as height and pattern.

In order to solve the above problems, the vehicle seat of the present invention takes the following means.
That is, the vehicle seat according to the present invention has a bank portion having a bank portion that is formed such that both sides in the width direction of the seat protrude toward the seating posture position direction of the seated person with respect to the seating contact surface at the center position. The bank portion forming part of the bank portion is formed as a separate member from the sheet main body portion forming the basic outline of the sheet, and is provided between the bank main body portion and the bank portion arrangement position. It is configured to be detachably attached by a connecting means that is detachable.

  In the above, examples of the seat constituent part of the vehicle seat on which the bank portion is formed include a seat cushion on which a seated person sits and a seat back that becomes a backrest when seated. And, in these sheet constituent parts, the coupling means for detachably attaching the sheet main body part and the bank part forming part forming the sheet constituent part is a form of the sheet main body part and the bank part forming part formed as separate constituent members. In other words, any means can be used as long as it is capable of attaching and detaching both of them without destroying its form, and the means may be coupled using a tool. For example, the coupling means may be a bolt or a nut and requires a tool such as a spanner. As a matter of course, it may be a means that can be coupled / disengaged by itself without using a tool or the like, such as a hook-and-loop fastener or concave / convex wedge fitting.

  According to the above-described invention, the bank portion forming portion that forms the bank portion is formed as a separate component from the sheet main body portion that forms the basic outline structure of the seat, and is attached by the detachable coupling means. Thereby, it can change easily to the bank part of the form from which height and a pattern differ, and it can be set as the seat according to the use of vehicles, such as a car, and a seated person's liking.

  In the vehicle seat of the present invention, the fragile component portion is provided at a midway position in the width direction at the joint portion between the bank portion forming portion provided with the detachable coupling means and the seat body portion. It is good to be configured. By adopting such a configuration, the bank portion forming portion in the seating position direction of the seated person from the position where the weakened member is formed becomes the hinged part as a hinge and the seat body part is deformed by the seated person sitting. It can be set as the structure which deform | transforms following. As a result, the seating location of the seat occupant is deformed along with the seat of the seat occupant, so that the seat occupant can obtain a comfortable seat.

By taking the above-mentioned means, the present invention can be easily changed to a bank portion having a different height and pattern, and a seat according to the use of a vehicle such as an automobile and the preference of a seated person. it can.
In addition, in the above means, if the weak component portion is provided in the middle position in the width direction at the connecting portion between the bank portion forming portion provided with the connecting means to be detachable and the seat body portion, Along with the seating, the seating location of the seated person follows and deforms together, so that the seated person can obtain a seat without a sense of incongruity.

It is a figure for demonstrating notionally the Example of embodiment which applied this invention to the seat back. It is a figure which shows the specific structure of a coupling | bonding means. It is a figure which shows the resin frame which comprises a sheet | seat main-body part. It is a figure which shows a bank part formation site | part. It is a figure for demonstrating the dimensional relationship of a male-type engagement part and a female type | mold engagement part. It is a figure which shows the arrangement | positioning relationship of the bank part formation site | part with respect to the resin frame of the sheet | seat main body part at the time of an assembly | attachment. It is a figure which shows the process of the slide movement of the female engagement part with respect to the male engagement part at the time of an assembly | attachment. FIG. 3 is a cross-sectional configuration diagram of the left half of the seat back, and shows a state before and after sitting on the seat back.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 conceptually shows an example of an embodiment in which the present invention is applied to a seat back of a vehicle seat. FIG. 1A shows a perspective view of a seat back. FIG. 1B is a cross-sectional view taken along the line BB in FIG. FIG. 1C shows a perspective view of a bank portion forming portion in a different form.
The seat back 10 shown in FIG. 1 includes a seat body 20 that forms a basic outline of the seat back 10 as a net seat. Of course, not a net sheet but a urethane sheet can be used. The seat body 20 has a seating contact surface at the center in the width direction formed by a net 22 and is attached to the resin frame 24 in a state where the periphery of the net 22 is fixedly attached to the resin frame 24 and stretched. It has been. The resin frame 24 is attached to a seat frame 26 disposed along the basic outline of the seat back 10. The net 22, the resin frame body 24, and the seat frame 26 are configured as an assembly to constitute the seat body 20.

  As shown in FIG. 1A, bank portion forming portions 30 are disposed on both sides in the width direction in the left-right direction when viewed in the drawing of the sheet main body portion 20. As shown in FIG. 1 (B), the bank portion forming portion 30 is mounted on a resin frame 24 that constitutes the seat body portion 20 and is a net that serves as a seating contact surface on the back of the seated person. It is formed so as to protrude toward the seating posture position direction (upward in the figure) of the seated person with respect to the 22 plane. This protrusion height can be varied depending on the bank portion forming site 30 to be arranged. In FIG. 1B, the bank portion forming portion 30B indicated by a virtual line is higher than the bank portion forming portion 30A indicated by a solid line. Although not shown in detail in FIG. 1, the bank portion forming portion 30 is detachably attached to the resin frame body 24 of the sheet main body portion 20 by a detachable coupling means 40. As can be understood from this attachment relationship, in this embodiment, 24 resin frame bodies constituting the periphery of the sheet main body portion 20 are the bank portion arrangement positions. In this embodiment, the height of the bank portion of the seat back 10 can be easily changed according to the use of the vehicle on which the seat back 10 is mounted or according to the preference of the seated person.

FIG. 1C shows another bank portion formation site 30. The bank portion forming portion 30 has the same shape as the bank portion forming portion 30 shown in FIG. 1A, but has a different shape such as a protruding height, but has a different pattern on the so-called sheet skin. . That is, the image of the sheet is changed by attaching the bank portion forming portion 30 of the sheet skin having a different pattern in place of the preset bank portion forming portion 30.
Similarly, although not shown in the figure, the shape and pattern on the outer shape of the bank portion forming portion 30 in FIG. 1A are the same, but the characteristics of the pads inside the bank portion forming portion 30 are different. The holding performance for the seated person can also be changed. Of course, the bank portion forming portion 30 can be configured and replaced by combining the various contents described above.
In the following description of the embodiment, when the part existing on the right side of the seat back 10 is specified and indicated, R is added to the reference numeral indicating the part, and the part existing on the left side is specified and shown. In some cases, R may be added to the reference numeral indicating the part. The left and right in this case is a positional relationship viewed from the seated person in the posture state when the seated person is seated on the seat back 10. For example, the right bank portion forming portion may be indicated as 30R, and the left bank portion forming portion may be indicated as 30L.

Next, the concrete structure of the Example of the coupling | bonding means 40 which attaches the bank part formation site | part 30 to the sheet | seat main-body part 20 so that attachment or detachment is possible is demonstrated. FIG. 2 shows a perspective view of a specific configuration of the coupling means 40. The coupling means 40 of this embodiment is constituted by a male engaging portion 42 shown in FIG. 2 (A) and a female engaging portion 50 shown in FIG. 2 (B). As shown in FIG. 2A, the male engagement portion 42 is integrally formed with the resin frame 24 made of resin that constitutes the seat body 20. A female engaging portion 50 shown in FIG. 2B is provided in the bank portion forming portion 30. The female engaging portion 50 provided in the bank portion forming portion 30 is coupled by sliding fitting with a male engaging portion 42 formed integrally with the resin frame 24. .
The male engaging portion 42 is formed as a pair of two portions, and the first male engaging portion 42A and the second male engaging portion 42B are arranged on a straight line with an axial distance therebetween. It is formed as a set. Both the first male engagement portion 42A and the second male engagement portion 42B are formed as solid protrusions having a cross-sectional shape of Ω shape, and are formed with a predetermined axial length in the slide fitting direction. ing. The second male engagement portion 42B is formed with a groove 44 into which a protrusion 52 (see FIG. 2C) formed on the second female engagement portion 50B, which will be described in detail later, is fitted. .

FIG. 3 shows a resin frame 24 constituting the sheet body 20. FIG. 3A shows a perspective view of the entire resin frame 24. FIG. 3B is a cross-sectional view taken along the line BB in FIG. FIG. 3C is a cross-sectional view taken along the line CC in FIG. FIG. 3D shows a cross-sectional view taken along the line DD in FIG. If it demonstrates based on this FIG. 3, the male-shaped engagement part 42 formed as mentioned above will be arrange | positioned and formed on the resin frame 24, as FIG. 3 (A) shows. . In the embodiment, six sets are arranged in the right resin frame 24R, six sets in the left resin frame 24L, and a total of 12 sets are arranged. The position where the male engagement portion 42 is disposed and formed is a position corresponding to the position where the bank portion forming portion 30 is disposed with respect to the sheet main body portion 20.
As well shown in FIG. 3 (B), the lower surface portion of the resin frame 24 at the position of the separation portion where the first male engagement portion 42A and the second male engagement portion 42B are formed to be separated upwards. It is formed as the lacking wall 46 and has a so-called fragile configuration. The thickness at the time of lacking is preferably about 0.5 mm. Accordingly, the first male engagement portion 42A is easily bent in the vertical direction as seen in the drawing with respect to the second male engagement portion 42B, and has an integral hinge configuration. The thin wall 46 is formed by extending the inside of the resin frame 24 inward to form the first male engaging portion 42A, as shown in FIG. 3A. The extended portion 24A is formed in the circumferential direction. The extended portions 24A are formed for two contacts of the first male engaging portion 42A, and the resin frame 24 portions between the extended portions 24A are formed as the thin wall 28. A vulnerable configuration has not been formed.
As shown in phantom lines in FIGS. 3B and 3C, the seat frame 26 is positioned on the back surface side (lower side in the drawing) of the resin frame 24 of the second male engagement portion 42B. Installed. As shown in FIGS. 3C and 3D, the first male engagement portion 42A and the second male engagement portion 42B have the same cross-sectional shape as described above. It is formed as a solid protrusion shape of Ω shape.

  A female engagement portion 50 shown in FIG. 2B is arranged and formed on the lower surface portion of the bank portion forming portion 30 at a position corresponding to the sheet main body portion 20 where the male engagement portion 42 is formed. The female engaging part 50 corresponds to the two first male engaging parts 42A and the second male engaging part 42B of the male forming part 42, and corresponds to the first female engaging part 50A and the second female engaging part 50B. A female engagement site 50B is formed. That is, the female engaging portion 50 is also formed as a pair of two portions, and the first female engaging portion 50A and the second female engaging portion 50B are arranged in a straight line apart in the axial direction. It is formed as a set. The first female engaging portion 50A and the second female engaging portion 50B are formed in an Ω-shaped groove shape that can slide-fit the Ω-shaped protrusions of the male engaging portion 42 described above. Has been. The first female engaging portion 50A and the second female engaging portion 50B are attached to the pad constituting the bank portion forming portion 30 by integral foaming or sewn to the toughnel.

  FIG. 2C shows a cross-sectional view taken along the line CC in FIG. As can be seen from this figure, a stopper piece 54 is formed in the groove at the left end as seen in the drawing of the first female engaging portion 50A. Thus, when the female engagement portion 50 is slidably fitted to the male engagement portion 42, the stopper piece 54 abuts against the end portion of the first male engagement portion 42A to prevent the sliding movement. Perform functions. Further, the second female engagement portion 50B is formed with a protrusion 52 that slightly protrudes from the slide groove formed in the Ω shape. The protrusion 52 is engaged with the groove 44 formed in the second male engagement portion 42B, and when the female engagement portion 50 is slidably fitted into the male engagement portion 42. The protrusion 52 engages with the groove 44 formed in the second male engagement portion 42B in a position where sliding movement is prevented by the stopper piece 54 of the first female engagement portion 50.

  FIG. 4 shows a bank portion formation site 30. FIG. 4A shows a perspective view of the entire bank portion formation site 30 as viewed from the front side. FIG. 4B shows a perspective view of the entire bank portion formation site 30 as viewed from the back side. FIG. 4C shows a cross-sectional view taken along the line CC of FIGS. 4A and 4B. FIG. 4D is a cross-sectional view taken along the line DD in FIGS. 4A and 4B. Referring to FIG. 4, the female engaging portion 50 formed as described above is arranged on the resin frame 24 shown in FIG. 3A as shown in FIG. 4B. Corresponding to the formed male engaging portion 42, a plurality of the portions are formed on the back side of the bank portion forming portion 30. In the embodiment, six sets are arranged on the right bank portion forming portion 30R and six sets are arranged on the left bank portion forming portion 30L, for a total of 12 sets.

As shown well in FIGS. 4C and 4D, the bank portion forming portion 30 is formed by covering the pad 60 with the skin 62. The female engaging portion 50 is formed of a resin member, and is disposed and attached to the back side of the lower surface of the bank portion forming portion 30 as seen in the figure. In the case of this embodiment, although not shown in the drawings, the female engagement portion 50 is sewn and attached to the toughnel disposed on the back side of the bank portion formation portion 30.
The female engagement portion 50 is mounted on the back surface of the bank portion forming portion 30 in such a manner that the outer ends in the axial direction of the first female engagement portion 50A and the second female engagement portion 50B are the bank. It is good that it is placed in an arrangement state near the outer end of the back surface of the part forming portion 30 and attached. In such an arrangement state, the bank portion forming portion 30 is prevented from being lifted from the sheet main body portion 20 in the attached state, and a finger of a hand or the like can be inserted between the both 30 and 20. Can be blocked. Furthermore, in the follow-up deformation of the seat main body 20 and the bank portion forming portion 30 when the seated person is seated, it is possible to easily perform the follow-up deformation without leaving the ends of the both 30 and 20 apart. .

  FIG. 5 is a view for explaining the dimensional relationship between the female engaging portion 50 formed on the bank portion forming member 30 and the male engaging portion 42 formed on the resin frame 24 constituting the sheet main body portion 20. FIG. In FIG. 5, a is a separation dimension between the first male engagement part 42A and the second male engagement part 42B, b is an axial length dimension of the first male engagement part 42A, c is An axial length dimension of the second female engagement part 50B, d indicates a separation dimension between the first female engagement part 50A and the second female engagement part 50B. These dimensional relationships are formed as a <c, b> d in this embodiment.

Next, a method for assembling the bank portion forming portion 30 to the seat body portion 20 of the seat back 10 having the above-described configuration will be described. FIG. 6 is a diagram showing an arrangement relationship of the bank portion forming portion 30 with respect to the resin frame body 24 of the sheet main body portion 20 at the time of assembly. FIG. 7 shows a sliding movement when the female engaging portion 50 formed on the bank portion forming portion 30 is fitted and attached to the male engaging portion 42 formed on the resin frame 24 of the sheet main body portion 20. It is a figure which shows a process.
First, in order to form the seat back 10, a bank formation portion 30 having a predetermined shape is selected according to the preference of a seated person and the use of a vehicle such as an automobile. Then, as shown in FIG. 6, the selected bank portion forming portion 30 is attached by moving from the central position in the width direction of the resin frame 24 constituting the sheet main body portion 20 toward the resin frame 24 in the outward direction. FIG. 6 illustrates the case where the bank portion forming portion 30L disposed on the left side is assembled to the left resin frame 24L, but the bank portion forming portion disposed on the left side with respect to the right resin frame 24R. When assembling 30R, it is similarly attached in the direction opposite to the figure. In this movement, as shown in FIG. 7, the female engagement portion 50 formed in the bank portion formation portion 30 is slidably fitted to the male engagement portion 42 formed on the seat body 20 side. Installed.

FIG. 7 shows the process of the slide movement. FIG. 7A shows the positional relationship between the female engaging portion 50 and the male engaging portion 42 in the arrangement state shown in FIG. In this state, the female engagement portion 50 and the male engagement portion 42 are in a positional relationship in which they are separated from each other in the axial direction and are not fitted to each other. When sliding from this state in the direction of the arrow, as shown in FIG.
The state of FIG. 7B is a state in which the second female engagement portion 50B is slid to a state where it is fitted to the second male engagement portion 42B. As can be seen from this sliding movement state, the second female engagement portion 50B is in a position state in which it is fitted to both the second male engagement portion 42B and the first male engagement portion 42A in the illustrated state. That is, it is in a state of being fitted to both the male engaging portions 42A and 42B across the spaced space. This is because the dimensional relationship described above is a <c. Further, in this state, the first female engagement portion 50A is also fitted to the first female engagement portion 42A. This is because the dimensional relationship described above is b> d. Due to this dimensional relationship, the first female engagement portion 50A is fitted to the first male engagement portion 42A before the second female engagement portion 50B slides over the first male engagement portion 42A. In the combined state, the sliding movement of both fittings is performed smoothly.

In the state of FIG. 7 (B), the protrusion 52 formed on the second female engagement portion 50B has the second female engagement portion 50B fitted into the first male engagement portion 42A. When the slide moves, the cross-sectional shape will be overlapped when viewed in cross-sectional shape, so that the overlapping parts will be slightly plastically deformed so that they can slide with each other and slide with an appropriate sliding resistance. Moving. Therefore, the protrusion 52 returns to its original shape when there is no overlap.
The state of FIG. 7C is a state in which the slide movement is further advanced, the second female engagement portion 50B is the second male engagement portion, and the first female engagement portion 50A is the first male engagement. A state in which the joint portions 42A are individually fitted is shown, which is a state just before the end of the slide movement.
The state of FIG. 7D is a state in which the slide movement is finished and the female engagement portion 50 of the bank portion forming portion 30 is locked and attached to the male engagement portion 42 of the seat main body portion 20. Show. In this state, the stopper piece 54 of the first female engagement portion 50A is in contact with the left end portion of the first male engagement portion 42A as viewed in the drawing and is prevented from moving. In this state, the protrusion 52 of the second female engagement portion 50B is engaged with the groove 44 formed in the second male engagement portion 42B. Positioning is performed at the position.

In this embodiment, the function of preventing the slide movement by the stopper piece 54 is configured as a means for preventing the slide movement from the inside of the seat back 10 to the outside. It functions effectively even with respect to the load when it is seated against 10. That is, the load when the seated person is seated acts from the inside toward the outside with respect to the bank portion forming portion 30, but it surely prevents the sliding movement with respect to the acting direction of the load. Can do. As another embodiment, the bank portion forming portion 30 can be attached to the seat body 20 as a configuration that prevents sliding movement from the outside to the inside. However, in the case of this other embodiment, since the load acting direction at the time of seating of the seated person is opposite, it is necessary to make the structure for positioning the bank portion forming portion 30 strong. Become.
FIG. 7E shows a fitting state between the male engaging portion 42 and the female engaging portion 50 during the sliding movement. As can be seen from the illustrated state, both the parts 42 and 50 have a so-called wedge-fitting shape with a cross-sectional shape of Ω as described above, and can be slid in the sliding direction, but in the radial direction. Is a fitting that cannot be removed. As a result, the bank portion forming portion 30 is attached without being detached from the seat body portion 20 in a normal seating state in the fitted state of both.
In addition, in order to replace the bank portion forming portion 30 with another form, when the currently attached bank portion forming portion 30 is removed, it can be removed by reversing the above assembly. is there.

  FIG. 8 shows a state before and after seating on the seat back 10 configured as described above, and shows a cross-sectional configuration of the left half of the seat back 10. FIG. 8A shows a state before sitting, and FIG. 8B shows a state after sitting. In this embodiment, since the portion between the first male engagement portion 42A and the second male engagement portion 42B of the seat body portion 20 is a fragile configuration, this portion becomes a hinge portion and is used by the seated person. As shown in FIG. 8 (B), the first male engagement portion 42A of the resin frame 24 is bent by the backrest load, and is deformed following the backrest of the seated person. And at the time of this deformation | transformation, 30 bank part formation site | parts in which 50A of 1st female engagement site | parts which were united with the 1st male engagement site | part 42A and were integrated are also deformed together. . In this case, the bank portion forming portion 30 can be easily deformed because the inside is formed by a pad.

  In the above-described embodiment, because of the configuration as described above, various types of forms are prepared as the bank portion forming portion 30, so that the seat back 10 can be used according to preference or according to the use of the vehicle. It can be configured by changing the bank. Possible forms of the bank portion forming portion 30 include those in which the protruding height of the bank portion is changed, the surface pattern of the bank portion is changed, and the pad characteristics are changed.

As mentioned above, although embodiment of one Example of this invention was described, this invention can be implemented as other various embodiment.
For example, in the above embodiment, the case where the present invention is applied to the seat back has been described, but the present invention can also be applied to a seat cushion constituting the seat.
Moreover, the said Example was a thing of the structure which forms what is called a weak structure in the resin frame 24. FIG. However, the fragile configuration is not necessarily required in the present invention. However, by adopting a fragile configuration positively, follow-up deformation with respect to a backrest load when the seated person is seated is easily performed as described above, and a good sitting posture can be obtained.
In addition to the configuration of the above embodiment, various means such as a method using a hook-and-loop fastener, a method using a fastening means such as a bolt and a nut can be considered as a connecting means for detachably attaching the bank portion forming portion to the seat body. It is done.

DESCRIPTION OF SYMBOLS 10 Seat back 20 Sheet | seat main-body part 22 Net 24 Resin frame 24A Extension part 26 Seat frame 28 Depletion 30 Bank part formation part 40 Coupling means 42 Male engagement part 42A 1st male engagement part 42B 2nd male form Engagement part 44 groove 46 fillet 50 female engagement part 50A first female engagement part 50B second female engagement part 52 projection part 54 stopper part 60 pad 62 epidermis

Claims (2)

A vehicle seat having a bank portion formed on both sides in the width direction of the seat so as to protrude toward the seating posture position direction of the seated person with respect to the seating contact surface at the center position,
The bank portion forming portion forming the bank portion is formed as a separate member from the seat main body portion forming the basic outline configuration of the sheet, and is detachable provided between the bank main body portion and the bank portion arrangement position. A vehicle seat, wherein the vehicle seat is configured to be detachably attached by a coupling means. The vehicle seat according to claim 1,
A fragile component is provided at a midway position in the width direction at the coupling portion between the bank portion forming portion provided with the detachable coupling means and the sheet main body, and the fragile component forming position Further, the bank forming portion in the seating position direction of the seated person is configured such that the fragile component part becomes a hinge and is configured to follow and deform together with the deformation of the seat body by the seating of the seated person. Vehicle seat.

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