WO2013137355A1 - Cushion pad and vehicle seat - Google Patents

Abstract

Provided are: a cushion pad provided with a non-continuous part that connects to the tear line of an external cover, and having an airbag deploy and inflate toward the non-continuous part, wherein an impact on the appearance caused by the load of a passenger or the like is effectively prevented; and a vehicle seat provided with the cushion pad. The cushion pad is a cushion pad (5) for a vehicle seat (S) covered by a cover material (4). The cushion pad (5) is provided with a non-continuous part (P) for dividing the cushion pad (5) in a location facing a rupture section (40) of the cover material (4). A space (7) surrounded by interior walls of the divided cushion pad (5) forms a space (7) for positioning an airbag module. The space (7) for positioning the airbag module has a cover-shape-maintaining member (8) positioned therein for covering the seat-side direction of the space (7). The cover-shape-maintaining member (8) is provided with a stepped section for positioning on another member (10) for configuring the seat (S).

Description

Cushion pad and vehicle seat

The present invention relates to a cushion pad used for a vehicle seat including an airbag module and a vehicle seat, and in particular, a discontinuous portion between skin pads is formed in the vicinity of a tear line for ensuring deployment of an airbag. The present invention relates to a cushion pad and a vehicle seat.

Conventionally, as an airbag module equipped seat, a seat in which an airbag module is attached to a side frame of a seat back frame has been proposed.
For example, as an example of such a sheet, a trim cover rupture portion is formed by sewing together each end of the trim cover and two ends of two baffles, and the two portions pulled into the trim cover from the rupture portion. The airbag module is wrapped with a single blanket, and the entire seat back including the airbag module is covered with a trim cover.

By the way, the break part of the trim cover forms a so-called “tear line” of the airbag, but a slit (discontinuous part) that runs in the vehicle vertical direction is formed in order to smoothly deploy the airbag from the tear line. A cushion pad has been proposed.
For example, Patent Document 1 discloses a vehicle seat on which an airbag module is mounted.
In the vehicle seat according to Patent Literature 1, when an expansion signal indicating that the airbag is to be deployed is detected, the ignition portion of the inflator is ignited and the airbag is inflated and deployed.
The airbag is inflated and deployed to the outside through a through hole (slit) formed in the cushion pad while pushing away the lid of the stored resin case, and further covers the surface layer portion of the through hole. The seam seam (tear line) of the outer skin cover is broken by the spreading pressure and bulges outward.

JP 2010-095020 A

As described above, in the invention of Patent Document 1, since the airbag is deployed and inflated along the through hole (slit) provided so as to communicate with the seam portion (tear line) of the seam of the skin cover, the airbag is smoothly expanded. Can be bulged.
However, in the invention of Patent Document 1, since the slit is formed in the cushion pad, the outer skin cover and the cushion pad facing the side surface of the airbag move due to the load of the occupant and the shape of the skin material cannot be maintained. The above problem occurred.
In addition, there is a problem that it is difficult to maintain the appearance of the seat at a position corresponding to the space for installing the airbag module. This is a significant problem in so-called “caseless” airbag modules.
Furthermore, when a case or other parts are used to maintain the shape of the skin material, the assembling work becomes complicated and workability is poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a cushion having a discontinuous portion communicating with a tear line of an outer skin cover, and an airbag being deployed and inflated toward the discontinuous portion. An object of the present invention is to provide a cushion pad that can effectively prevent an appearance shape from being affected by the load of an occupant, and a vehicle seat including the cushion pad.
Another object of the present invention is to provide a cushion pad with good workability and a vehicle seat provided with the cushion pad in manufacturing.

According to the cushion pad of claim 1, the subject is a cushion pad of a vehicle seat that is covered with a skin material, and the cushion pad is located at a position facing a fracture portion of the skin material. A space surrounded by an inner wall of the divided cushion pad forms a space for arranging the airbag module, and the space for arranging the airbag module includes the space. The skin shape maintaining member that covers the side of the sheet is disposed, and the skin shape maintaining member is provided with a step portion for positioning to another member constituting the sheet.

Thus, since the skin shape maintaining member that covers the side of the seat in the space is disposed in the space for disposing the airbag module, a discontinuous portion and a space for disposing the airbag module are formed. However, the shape of the skin material can be maintained, and the occurrence of undulations or the like in the appearance at this position can be effectively prevented.
In addition, since the skin shape maintaining member has a step portion for positioning to other members constituting the seat, the skin shape maintaining member can be positioned to other members constituting the seat such as a side frame. The workability of assembling the skin shape maintaining member is improved.
In this specification, “non-continuous portion” refers to notches formed between a plurality of pads (slits, etc.). Although it is not fixed or fixed, such as bonding or connection. In other words, it is not physically continuous correctly, that is, it is in a separated state, but also includes a close state, so-called “contacting or touching” state and “engraving” state Are also widely included.

At this time, the skin shape maintaining member includes a side covering portion that covers at least a part of the side of the seat in the space for arranging the airbag module, and the airbag module is bent from the side covering portion. A rear covering portion extending inward in the seat width direction behind the installation space, and a position where the rear covering portion and the side covering portion are continuous, and an upper end and a lower end are the rear covering portion and A hinge portion that protrudes from the upper end and the lower end of the side covering portion, and has a vertical length that is longer than the vertical length of the rear covering portion and the side covering portion. Also good.
In this way, at the position where the rear covering portion and the side covering portion are continuous, the upper end and the lower end protrude from the upper end and the lower end of the rear covering portion and the side covering portion, respectively, and the length in the vertical direction is the rear covering portion. And the hinge part formed longer than the length of the side cover part in the vertical direction, even when the side cover part is pushed toward the seat side by the inflating force of the airbag when the airbag is deployed. The hinge portion having a long vertical direction can improve the support rigidity when the pressing force is received. As a result, the hinge portion functions as a hinge, and the airbag deployment force is suppressed from being transmitted to the rear covering portion, and the airbag deployment direction can be smoothly guided.

Moreover, the said side coating | coated part may be coat | covered with the laminated body of the said skin shape maintenance member, the said cushion pad, and the said skin material.
Since it is configured in this way, by providing the cushion pad, the shape of the airbag module stored inside affects the surface of the vehicle seat while maintaining the soft texture of the vehicle seat, The surface can be prevented from undulating and rising, and the shape maintaining power of the skin can be improved.

In the laminate, a layer closest to the space for arranging the airbag module may be formed of the hardest material.
Since it comprises in this way, the layer formed from the hardest material becomes a guide at the time of airbag deployment, and it becomes possible to guide the airbag deployment direction smoothly.

The skin shape maintaining member may have a substantially L-shaped cross section bent at the hinge portion, and the rear covering portion may be formed thicker than other portions of the skin shape maintaining member.
As described above, since the rear covering portion is formed thick, when the side covering portion is pushed toward the seat side by the inflating force of the airbag when the airbag is deployed, the thick rear covering portion is formed. It is possible to prevent the rear covering portion from moving toward the seat side by the movement of the side covering portion opening toward the seat side at the hinge portion. As a result, it is possible to suppress the occurrence of a gap in which the inflated airbag enters in the portion from the hinge portion to the rear covering portion, so that the airbag deployment direction can be smoothly guided.

The skin shape maintaining member may be insert-molded on the cushion pad.
Since it is comprised in this way, components are integrated and a number of components reduces, and workability | operativity improves when performing assembly | attachment operation | work.
Moreover, manufacture is easy, for example, when the resin-made skin shape maintenance member is insert-molded, it can maintain a fixed rigidity and can maintain the external appearance shape of a skin material effectively.

Also, a vehicle seat equipped with an airbag module for storing an airbag, the seat frame forming a skeleton of the seat, the airbag module attached to the seat frame, and attached to a skin material of the seat And a cushioning pad according to any one of claims 1 to 6, wherein the cushioning pad is disposed between the seat frame and the skin material. Good.
At this time, one end side of the guide member is fixed to the broken portion of the skin material, and the guide member is drawn into the seat inside the space through the front of the space for arranging the airbag module. The other end side may be attached to the front edge side of the side frame.
Since it is configured in this manner, a guide member is arranged in front of the space for installing the air bag module where the skin shape maintaining member is not arranged, so that the airbag deployment direction can be guided more smoothly. It becomes possible.
In addition, the guide member passes through the front of the space for air bag module placement and is drawn into the seat inside the space, and the other end is attached to the front edge side of the side frame. It is not necessary to extend the skin shape maintaining member to the front of the space, and the structure of the skin shape maintaining member can be simplified.

According to the cushion pad of the present invention, since the skin shape maintaining member that covers the side of the seat in the space is disposed in the space for disposing the air bag module, the discontinuous portion and the air bag module are disposed. Even if this space is formed, the shape of the skin material can be maintained, and the occurrence of undulation or the like in the appearance at this position can be effectively prevented.
In addition, since the skin shape maintaining member has a step portion for positioning to other members constituting the seat, the skin shape maintaining member can be positioned to other members constituting the seat such as a side frame. The workability of assembling the skin shape maintaining member is improved.

1 is an external view of a vehicle seat according to an embodiment of the present invention. It is a perspective view of a seat frame of a vehicular seat concerning one embodiment of the present invention. It is an external appearance explanatory view of an air bag module arrangement part concerning one embodiment of the present invention. FIG. 4 is a sectional view taken along line AA in FIG. 3. It is explanatory explanatory drawing which shows the positional relationship of the skin shape maintenance member which concerns on one Embodiment of this invention, and an inflator. It is external appearance explanatory drawing of the airbag module arrangement | positioning part which concerns on the 1st modification of this invention. FIG. 7 is a sectional view taken along line BB in FIG. 6. It is the C section enlarged explanatory view of FIG. It is external appearance explanatory drawing of the airbag module arrangement | positioning part which shows the 2nd modification of this invention. FIG. 10 is a sectional view taken along line DD of FIG. 9. It is a perspective view of the seat frame of the airbag module equipment seat concerning other examples. FIG. 2 is a sectional view taken along line XX in FIG. It is a perspective explanatory view showing a side frame according to another example. It is sectional explanatory drawing which shows the holding | maintenance part by the side of the front edge part which concerns on another example. It is a perspective explanatory view showing a holding part on the front edge side according to another example. It is sectional explanatory drawing which shows the holding | maintenance part by the side of the rear edge part which concerns on another example. It is explanatory drawing which shows the state which sewed together the trim cover and power cloth which concern on the other example in the fracture | rupture part. It is sectional explanatory drawing which shows the holding | maintenance part by the side of the front edge part which concerns on another example. It is sectional explanatory drawing which shows the holding | maintenance part by the side of the rear edge part which concerns on another example.

(Embodiment of the Invention)
Hereinafter, a cushion pad and a vehicle seat according to an embodiment of the present invention will be described with reference to FIGS. 1 to 10.
Hereinafter, a case in which the side frame 10 is applied as an example of an attached portion of the airbag module and applied to a so-called “side airbag module” will be described, but the present invention is not limited to this, and the attached portion of the airbag module is described. May be another frame of the vehicle, or may be applied to an airbag module in another part.

In the present specification, the guide member is a sheet-like member that is less stretchable than the skin, and one end is stitched to a break portion provided in the skin of the storage location of the airbag module, and the guide member is hooked when the airbag is deployed. The airbag module and other members are used to transmit force to the breakage part to promote the deployment of the airbag and to prevent other members such as the cushion pad from being damaged by the force associated with the inflation of the airbag when the airbag is deployed. Including a blanket disposed between the two.

The vehicle seat S according to the present embodiment includes a seat back S1, a seating portion S2, and a headrest S3, as shown in FIG.

In the vehicle seat S, a seat frame F as shown in FIG. 2 is provided.
The seat frame F according to the present embodiment includes a seat back frame 1 that is a frame of the seat back S1 and a seating frame 2 that is a frame of the seating portion S2.
The seating frame 2 and the seat back frame 1 are connected via a reclining mechanism 3.
Further, a cushion and a trim cover are provided on the outside of the seat back frame 1 and the seating frame 2 to constitute the seat back S1 and the seating portion S2.

As shown in FIGS. 1 and 2, the seat back S <b> 1 is a seat back frame 1, a cushion pad 5 placed on the seat back frame 1, and a skin material that covers the seat back frame 1 and the cushion pad 5. And a trim cover 4.
Further, a webbing 32 having one end sewn on the breaking portion 40 of the trim cover 4 is provided. The webbing 32 is also called an inner webbing, and is drawn from the front of the seat of the airbag module 6 toward the inside in the seat width direction.

As shown in FIGS. 1 and 2, the seat back frame 1 includes a side frame 10 that is spaced apart from the left and right and extends in the vertical direction, an upper frame 21 that connects the upper ends of the side frames 10, and a lower end. A lower frame 22 that connects the parts forms a frame.
The upper frame 21 is provided with a pillar support portion 23, and the pillar support portion 23 is provided with a headrest frame (not shown). The headrest S3 is configured by providing a cushion member on the outside of the headrest frame.

The side frame 10 is formed by pressing a sheet metal, and as shown in FIG. 4, as shown in FIG. 4, a substantially flat side plate 11, and a front edge portion 12 formed by folding the front end portion of the side plate 11 inward in a U shape. The rear edge portion 13 is bent inward in an L-shape.
An airbag module 6 is fixed to the side frame 10.

The airbag module 6 has a known configuration, and is schematically illustrated in FIG.
The airbag module 6 is configured to be stored in a space 7 formed by the cushion pad 5.

As the airbag module 6 according to the present embodiment, a known airbag module may be used, but an example is briefly shown below.
The airbag module 6 includes an inflator 61, a mounting bracket 62, an airbag 63, and the like.

The inflator 61 is attached to the mounting bracket 62 while being held by the inflator bracket 64, and the upper end portion of the inflator 61 is inserted into the airbag 63.
The base of the airbag 63 is attached to the inflator bracket 64.

The inflator bracket 64 is a cylindrical member, and the inflator 61 is inserted and held therein.
The mounting bracket 62 to which these members are directly and indirectly attached is attached to the outer surface of the side plate 11 constituting the side frame 10 (the surface facing the side opposite to the side on which the seat surface is disposed). .
In addition, harnesses and connectors necessary for circuit configuration with related devices such as impact sensors are arranged around this, but the explanation of the arrangement method and position is omitted because known techniques are used. To do.

The airbag module 6 configured in this manner receives a large load from the outside of the vehicle body door into the vehicle body (so-called “side collision” occurs), and when the signal is transmitted from various sensors, the inflator 61 The gas is released and the airbag 63 is inflated and deployed outside the side of the seat (side of the occupant).

In the present embodiment, a configuration example of a so-called “caseless airbag module” in which the mounting bracket 62 provided with the inflator 61 and the like is attached to the side frame 10 is shown.
However, the present invention is not limited to this, and a configuration may be adopted in which the fastening bolt of the mounting bracket 62 protrudes to the outside and the whole is accommodated in the module case.

In this case, the module case may be, for example, an air bag that has an openable / closable lid hinged to the case body, or a housing composed of a case body and a lower plate provided with a fragile portion due to a V groove or the like on the front surface. What can be opened by the inflation pressure of the bag may be provided.

The trim cover 4 as a skin material is made of a known material, and a front gusset portion 41 covering the left and right bank surfaces from the center of the seat surface and a side gusset portion 42 extending from the peripheral side surface to the back surface are sewn together, and further not shown. The back gusset portion is sewed into a bag shape by connecting the back gusset portion to the side gusset portion 42 with a slide fastener (not shown).

The trim cover 4 is formed with a rupture portion 40 at the apex bulging at the bank portion of the front gusset portion 41 and the side gusset portion 42.
The breaking portion 40 is sewn to each other so that the ends of the front gusset portion 41 and the side gusset portion 42 can be broken by the tensile force due to the inflation of the airbag 63 while maintaining the strength that can withstand normal usability. ing.

The cushion pad 5 according to this embodiment includes at least a seat back side pad 51 and a side pad 52.
That is, in the present embodiment, at least the seat back side pad 51 and the side pad 52 are divided and formed, and a gap is formed between the seat back side pad 51 and the side pad 52. The
This gap is referred to as “slit P”. This slit P corresponds to a discontinuous portion.

The slit P indicates a notch (slit or the like) formed between the seat back side pad 51 and the side pad 52. This is because “the notch exists between both of them and is formed to be movable. Indicates a state in which it is not fixed or fixed, such as adhesion or connection. That is, it is not physically continuous correctly, that is, it is in a separated state, but also includes a close state, and also includes a so-called “contact or contact” state.
The slit P has a shape in which a gap that is cut in the front-rear direction of the sheet extends in the vertical direction.

Then, as shown in FIG. 4, the front end of the side pad 52 is cut obliquely so that the seat back side pad 51 side is rearward, and a groove having a V-shaped cross section is formed at the outer end of the slit P. ing. In this groove, a stitched portion of the front gusset portion 41, the end portion of the side gusset portion 42, and the end portion of the webbing 32 is embedded.
In the present embodiment, since the skin shape maintaining member 8 is provided, a so-called outer force cloth that is drawn from the breaking portion 40 toward the rear of the seat from the outside in the seat width direction of the airbag module 6 is not necessarily required. Since it is not a thing, the example which is not used was shown. Of course, the structure provided with an outer force cloth may be sufficient.
That is, the fracture portion 40 is arranged at the outer end portion of the slit P, whereby the slit P and the fracture portion 40 (so-called “tear line”) are continuous.

The airbag module 6 is stored in a space 7 surrounded by the inner wall of the seat back side pad 51 and the inner wall of the side pad 52.
The configuration of the side pad 52 is the main configuration of the present invention, and will be described in detail later, including the relationship between the seat back side pad 51 and the airbag module 6.

The force cloth 32 is disposed as a guide member that transmits the force applied to the breaking portion 40 when the airbag 63 is deployed and bulged.
The force cloth 32 is made of a cloth-like material with small stretchability, and plays a role of transmitting the stress caused by the expansion of the airbag 63 to the breaking portion 40 as described above.

The baffle 32 is a sheet-like member that is less stretchable than the trim cover 4, and one end thereof is stitched to a break portion 40 formed near the storage location of the airbag module 6, and is applied when the airbag is expanded and inflated. The force is transmitted to the breaking portion 40.
The airbag module 6 and other members are not damaged by the force that promotes the deployment of the airbag 63 and the force accompanying the expansion force when the airbag 63 is deployed. It is arranged between.

The force cloth 32 is made of a substantially trapezoidal cloth in which the side on the broken part 40 side and the side on the opposite side of the broken part 40 are substantially parallel and the side on the broken part 40 side is formed long. A plurality of trim plate attachment portions 36 protruding in a rectangular shape are formed on the side opposite to the fracture portion 40, and trim plates 37 are sewn to the trim plate attachment portions 36.
The side of the force cloth 32 on the side of the breaking portion 40 is the breaking portion 40, and is sewn together with the front gusset portion 41 of the trim cover 4 and the end portion of the side gusset portion 42.
The trim plate 37 is a rectangular plate made of hard resin.

As shown in FIG. 4, the force cloth 32 is drawn into the space 7 from the breaking portion 40.
The trim plate 37 at the other end of the force cloth 32 is locked to the front edge portion 12 of the side frame 10 via the clip member 50.

(About the structure and effect of the side pad 52)
3 and 4, the configuration of the side pad 52 according to the present embodiment and the relationship between the seat back side pad 51 and the airbag module 6 will be described.
As shown in FIGS. 3 and 4, the airbag module 6 is disposed in the space 7.
The space 7 is a space surrounded by the inner wall of the seat back side pad 51 and the inner wall of the side pad 52.
And this space 7 is opened to the outer side direction of a sheet | seat.
Further, a resin-made skin shape maintaining member 8 is insert-molded on the inner wall portion of the side pad 52 so as to cover the opening portion of the space 7 that opens in the sheet outer direction.

The side pad 52 (and the seat back side pad 51) has a cushion part formed of a foam, and the cushion part is covered with the trim cover 4.
As this foam, a polypropylene bead foam, a polyethylene bead foam, a polypropylene foam, a polyethylene foam, an acrylonitrile / styrene foam, an ethylene vinyl acetate copolymer resin, a urethane foam material, or a combination thereof is used. The

In the skin shape maintaining member 8 according to this embodiment, a surface layer 83, a shape holding member 84, and a cushion pad 85 are sequentially laminated from the side of the airbag module 6 and insert molded.
The surface layer 83 is made of a polyester long-fiber non-woven fabric, and is fixed to the surface of the shape holding member 84 on the side of the airbag module 6 to prevent noise when using the sheet and release from the mold after the skin shape maintaining member 8 is molded. Play a role of improvement.
The shape holding member 84 is made of a resin molded product or a press felt, and is a member that achieves the original purpose of the skin shape maintaining member 8 that prevents the shape of the airbag module 6 from affecting the seat surface. As long as the shape holding member 84 has a certain degree of rigidity and does not hinder the operation of the airbag module 6, the shape holding member 84 may be composed of a resin molded product or a press felt.
The cushion pad 85 fills the gap between the side pad 52 and the shape holding member 84 in accordance with the shape of the side frame 10 and the shape holding member 84, and at the same time, the elasticity of the side portion of the airbag module 6 of the seat. It plays a role to keep sex.
Note that the surface layer 83 and the shape holding member 84 may be arranged in reverse, and the shape holding member 84 may be arranged on the airbag module 6 side.

The skin shape maintaining member 8 according to this embodiment includes an opening covering portion 81 as a side covering portion and a rear bent portion 82 as a rear covering portion.
The opening covering portion 81 has a substantially rectangular flat plate-like covering portion 81a disposed so as to cover the opening in the sheet outer side direction of the space 7, and one side of two sides extending in the vertical direction of the covering portion 81a. It is comprised by the substantially rectangular extension parts 81b and 81b each extended in the up-down direction from the upper-lower end part of the edge | side 81c (side by the side arrange | positioned back).
That is, the extending part 81b extending upward from the upper end of the one side 81c and the extending part 81b extending downward from the lower end of the one side 81c are formed.

The portion of the virtual rod-like body formed by connecting the pair of upper and lower extending portions 81b serves as a hinge portion for opening the opening covering portion 81 to the side of the seat when the airbag 63 is deployed.
That is, when the airbag 63 is deployed, the opening covering portion 81 as a whole tends to spread to the seat side due to the deploying force of the airbag 63, but the seat rear side of the opening covering portion 81 is thick and bent backward. It is integrally continuous with the portion 82, and movement to the side of the seat is suppressed. As a result, the free end of the opening covering portion 81 on the front side of the sheet is pushed and spread toward the seat side with the side 81c that is the rear end of the opening covering portion 81 as a hinge axis.

Then, a substantially rectangular rear bent portion 82 that is bent substantially perpendicularly from the side 81c on one side and extends in the seat inner direction is formed.
As shown in FIG. 4, the rear bent portion 82 has a thick cushion pad 85 and is formed thicker than the opening covering portion 81.
The opening covering portion 81 is insert-molded at a position that covers the opening in the seat outer side direction of the space 7 of the side pad 52, and the rear bent portion 82 extends from the vehicle rear side of the opening covering portion 81 to the inside of the seat rear portion. The side pad 52 is insert-molded so as to bend and wrap around substantially perpendicularly in the direction.
In the present embodiment, the rear bent portion 82 is formed in a stepped cross section so as to match the internal shape of the space 7 and to avoid interference with the airbag module 6.

The rear bent portion 82 is continuous from the outer bent portion 82a and the outer bent portion 82a that are bent rearward of the seat inward in the seat width direction, and is inclined so that the inner side in the seat width direction is located rearward of the outer side in the seat width direction. 82b, an end portion of the inclined surface 82b on the inner side in the seat width direction is continuous from the inner side bent portion 82c and the inner side bent portion 82c that bend inward in the seat width direction, and extends to the inner side in the seat width direction. And are formed.
A step is formed at a position where the rear bent portion 82 contacts the rear edge portion 13 of the side frame 10 by the outer bent portion 82a, the slope 82b, the inner bent portion 82c, and the side frame rear edge contact portion 82d. Positioning of the skin shape maintaining member 8 to 13 is possible.

Further, the seat front surface of the side frame rear edge abutting portion 82d extending inward in the seat width direction can abut on the seat rear surface of the rear edge portion 13, and the skin shape maintaining member 8 Positioning in the longitudinal direction of the seat is possible.
The shape of the step is not limited to this, and may be designed in a different shape according to the shape of the space 7 (the shape of the cushion pad 5) and the like.
At least a part of the space 7 on the outer side in the sheet width direction is covered with a laminate in which the trim cover 4, the side pads 52, and the skin shape maintaining member 8 are stacked in order from the outer side of the sheet. ing.
The skin shape maintaining member 8 is insert-molded into the side pad 52, and the side pad 52 and the side gusset portion 42 of the trim cover 4 are bonded to each other with an adhesive to form a laminated body. The cover 4, the side pads 52, and the skin shape maintaining member 8 can be handled as one body, and the workability is high.
Of the trim cover 4, the side pads 52, and the skin shape maintaining member 8, the skin shape maintaining member is formed of the hardest material and has the highest rigidity.

Due to such a configuration, the shape of the trim cover 4 disposed in the opening in the seat outer direction of the space 7 can be maintained.
The portion is a space 7 for disposing the airbag module 6. For this reason, the opening portion is located in the seat outer direction.
Therefore, there is a concern that appearance abnormality such as undulation may occur in the trim cover 4 at this position.
In addition, it cannot be denied that the trim cover 4 and the side pads 52 in this position may be displaced due to the load of the occupant.
Thus, in order to maintain the design of the appearance, it is required to maintain the shape of the trim cover 4 disposed at this position.

Such a problem is remarkable when the so-called “caseless” airbag module 6 according to the present embodiment is disposed.
For this reason, in view of such a problem, there has been a need to maintain the shape of the trim cover 4 disposed in the opening in the seat outer direction of the space 7. For example, the opening covering portion 81 constituting the skin shape maintaining member 8 insert-molded in the side pad 52 can cover the sheet outer direction opening in the space 7, and the skin shape maintaining member 8 is present. The shape of the trim cover 4 disposed at this position can be maintained.

Furthermore, since a substantially rectangular rear bent portion 82 that is bent substantially vertically from the one side 81c side (from the extended portions 81b and 81b) and extends in the seat inner direction is formed, the rigidity of the fracture portion is increased. Go up.
Further, since the skin shape maintaining member 8 is insert-molded, the side pads 52 can be prevented from being broken and scattered when the airbag 63 is deployed.

As described above, since the side pad 52 and the airbag module 6 according to the present embodiment are configured, when the airbag 63 is deployed and inflated, the airbag 63 faces the side pad 52 in the outward direction. Expand and bulge while applying the power of.
At this time, the break portion 40 formed at the outer end portion of the slit P is a tear line and is a fragile portion. Therefore, the portion breaks and the airbag 63 expands and bulges while expanding the slit P. .

That is, the side pad 52 from which the breaking portion 40 has been broken is outside by the pressing force of the airbag 63 with the rear end side of the skin material shape maintaining member 8 (portion extending from the bent portion to the rear bent portion 82) as a hinge (see FIG. 4 (OUT arrow direction).
Therefore, the airbag 63 is smoothly expanded and inflated.

Next, the positional relationship between the skin shape maintaining member 8 and the inflator 61 will be described with reference to FIG.
In the present embodiment, the inflator 61 is spaced apart from the opening covering portion 81 with a distance t1 and spaced apart from the rear bent portion 82 with a distance t2.
This is to protect the inflator 61.
Further, the rear bent portion 82 is configured to extend inward of the seat by a distance t3 from the position where the inflator 61 is disposed.
This is also to prevent the inflator 61 from being exposed (that is, in a state where there is nothing to be protected) at the portion, and to protect the inflator 61.

(Modification 1)
Next, FIGS. 6 to 8 show modifications of the skin shape maintaining member 8.
In this example, it is set as the 2nd skin shape maintenance member 108, Since other structures are the same as that of the said embodiment, description is abbreviate | omitted.
As shown in FIGS. 6 and 7, the second skin shape maintaining member 108 according to this example includes a shape holding member 184 made of a resin molded product or press felt, a surface layer 183 made of a polyester long fiber nonwoven fabric, and a cushion pad. 185 and the airbag module 6 are sequentially laminated and insert-molded.
The second skin shape maintaining member 108 in this example includes a second opening covering portion 181 and a second rear bent portion 182.
The shape holding member 184 has a portion forming the second opening covering portion 181 formed in a substantially rectangular frame shape, and the surface layer 183 is exposed to the airbag module 6 side through the opening portion inside the frame.

The second opening covering portion 181 according to this example includes a second covering portion 181a disposed so as to cover the opening in the seat outer direction of the space 7, and upper and lower end portions on the rear side of the second covering portion 181a. It is comprised by the substantially rectangular-shaped 2nd extension part 181b, 181b each extended in an up-down direction.
That is, a second extending portion 181b extending upward from the upper end on the rear side of the second covering portion 181a, and a second extending portion 181b extending downward from the lower end on the rear side of the second covering portion 181a, Are formed respectively.

A substantially rectangular second rear bent portion 182 is formed that is bent substantially perpendicularly from the second side 181c extending in the vertical direction on the rear end side and extends in the seat inner direction.
That is, the second opening covering portion 181 is insert-molded at a position covering the inner peripheral edge portion of the opening in the seat outer direction of the space 7, and the second rear bent portion 182 is a vehicle of the second opening covering portion 181. Insert molding is performed so as to bend and wrap around substantially vertically from the rear side toward the inner side of the seat rear part.
In the present embodiment, the second rear bent portion 182 is formed in a stepped cross section so as to match the internal shape of the space 7 and avoid interference with the airbag module 6.
This shape is not limited to this, and may be designed in a different shape according to the shape of the space 7 (the shape of the cushion pad 5) and the like.

Since it is configured in this way, the second skin shape maintaining member 108 becomes a skeleton, and the shape of the trim cover 4 at a position covering the opening in the seat outer direction of the space 7 is maintained with a certain tension.
For this reason, the shape of the trim cover 4 arrange | positioned at the sheet | seat outer side direction opening part of the space 7 is maintainable similarly to the said embodiment.

Further, a substantially rectangular second rear bent portion 182 that is bent substantially perpendicularly (from the second extending portions 181b and 181b) from the second side 181c on the rear side and extending in the seat inner direction is formed. Therefore, the rigidity of the broken portion is also increased as in the above embodiment, and since the second skin shape maintaining member 108 is insert-molded, the side pads 52 are broken and scattered when the airbag 63 is deployed. The effect that it is possible to prevent this is the same as in the above embodiment.

Next, FIG. 8 shows an enlarged view of part C of FIG.
As shown in FIG. 8, among the sides on the inner side of the frame portion of the shape retaining member 184, the ends of the sides 184d and 184d that are spaced apart in the front-rear direction are processed to have no edge.
In particular, it is preferable that the side 184d disposed on the front side located in the deployment path when the airbag 63 is deployed is processed to have no edge.
As described above, since the end portions of the sides 184d and 184d are formed in an edgeless manner, the airbag 63 is effectively prevented from being pressed against the edge of the side 184d and receiving friction when the airbag 63 is inflated and inflated. be able to.

(Modification 2)
Next, FIGS. 9 and 10 show another modification of the skin shape maintaining member 8.
In this example, it is set as the 3rd skin shape maintenance member 208, Since other structures are the same as that of the said embodiment, description is abbreviate | omitted.
As shown in FIGS. 9 and 10, the third skin shape maintaining member 208 according to this example includes a shape holding member 184 ′ made of a resin molded product or press felt, a surface layer 183 made of a polyester long-fiber nonwoven fabric, and a cushion. Pads 185 are sequentially laminated from the side of the airbag module 6 and insert molded.
The third skin shape maintaining member 208 in this example includes a third opening covering portion 281 and a third rear bent portion 282.
In the shape holding member 184 ′, the portion constituting the second opening covering portion 181 is formed in a substantially U shape, and the surface layer 183 is exposed to the airbag module 6 side through the opening portion inside the U shape. Yes.

The third opening covering portion 281 according to the present example includes a substantially U-shaped flat plate third covering portion 281a that opens to the front side of the seat disposed so as to cover the opening in the seat outer direction of the space 7, and the third covering portion 281a. The third covering portion 281a includes substantially rectangular third extending portions 281b and 281b extending vertically from the upper and lower end portions on the rear side of the three covering portions 281a.
That is, a third extending portion 281b extending upward from the upper end on the rear side of the third covering portion 281a, and a third extending portion 281b extending downward from the lower end on the rear side of the third covering portion 281a, Are formed respectively.

Then, a substantially rectangular third rear bent portion 282 is formed that is bent substantially vertically from the side of the third side 281c extending in the vertical direction on the rear end side and extending in the seat inner direction.
That is, the third opening covering portion 281 is insert-molded at a position covering the upper and lower portions of the opening in the seat outer direction of the space 7, and the third rear bending portion 282 is the vehicle rear side of the third opening covering portion 281. Insert molding is performed so as to bend and wrap around substantially vertically from the side toward the inner side of the seat rear portion.
In the present embodiment, the third rear bent portion 282 is formed in a stepped cross section so as to match the internal shape of the space 7 and avoid interference with the airbag module 6.
This shape is not limited to this, and may be designed in a different shape according to the shape of the space 7 (the shape of the cushion pad 5) and the like.

Because of this configuration, the third skin shape maintaining member 208 serves as a skeleton, and the shape of the trim cover 4 at a position covering the opening in the seat outer direction of the space 7 is maintained with a certain tension.
For this reason, the shape of the trim cover 4 arrange | positioned at the sheet | seat outer side direction opening part of the space 7 is maintainable similarly to the said embodiment.

Further, a substantially rectangular third rear bent portion 282 is formed that is bent substantially vertically from the rear third side 281c side (from the third extending portions 281b and 281b) and extends in the seat inner direction. Therefore, the rigidity of the broken portion is also increased as in the above embodiment. Since the third skin shape maintaining member 208 is insert-molded, the side pads 52 are broken and scattered when the airbag 63 is deployed. The effect that it is possible to prevent this is the same as in the above embodiment.

(Other examples)
Hereinafter, another example of the airbag module equipped seat will be described with reference to FIGS. 1 and 11 to 19.
The present invention relates to an airbag module equipped seat in which an end portion side of a guide member that guides a deployment direction of an airbag module is attached to a side frame.

As an example of the seat frame, it is suitably used for a resin side frame, but it can also be applied to a side frame made of other materials such as metal.
In the present specification, “integrated and formed” includes a case where the resin is poured into an integral mold and the member is integrally molded, or a case where the resin is integrally formed by processing such as bending a metal member. .

As shown in FIGS. 1, 11, and 12, the seat back S <b> 1 includes a seat back frame 1, a cushion pad 5 placed on the seat back frame 1, and a cover that covers the seat back frame 1 and the cushion pad 5. The trim cover 4 which is a skin as a member, and the first force cloth 31 and the second force cloth 32 whose one ends are sewn to the fractured portion 40 of the trim cover 4 are main components.

The side frame 10 is formed of a resin molded body, and is formed of a substantially D-shaped substantially plate body in which a front end side is curved and a lower portion of the front end projects forward. As shown in FIGS. 12 and 13, a substantially flat side plate 11 as a plate portion, a front edge portion 12 formed by folding the front end portion of the side plate 11 in a U shape inside, and a rear end portion being L-shaped. The mold has a rear edge 13 bent inward. On the inner surface of the portion where the side plate 11 and the rear edge portion 13 are continuous, as shown in FIG. 13, a fillet portion 13 a is formed so that the inner surface has a curved shape.
As shown in FIGS. 11, 13, and 14, the front edge portion 12 includes the ends of the second webbing 32 at two locations in the extending direction of the front edge portion 12 extending substantially in the vertical direction of the sheet. A holding portion 14 is formed to be held.

The holding portion 14 includes a U-shaped portion 14a in which a front end of the side plate 11 is bent in a U-shape toward the inside of the sheet S, and an end portion on the inside of the sheet S of the U-shaped portion 14a extending toward the rear of the sheet S. The side plate 11 is bent toward the outer side of the sheet S substantially perpendicularly from the end of the side plate facing portion 14b at the rear side of the sheet S, as a plate portion facing portion composed of a surface facing the side plate 11. A first return portion 14c having a surface having a near-perpendicular angle with respect to the sheet S, and the first return portion 14c is bent substantially perpendicularly from the outer end portion of the sheet S toward the front side of the sheet S. A second return portion 14d as a restricting portion having a surface substantially parallel to the facing portion 14b. The second return portion 14d extends between the side plate facing portion 14b and the side plate 11 with the end portion directed toward the U-shaped portion 14a.

As shown in FIG. 14, the tip of the second return portion 14 d and the trim plate 37 are chamfered at the corners and formed so as to suppress damage to the second webbing 32.
Further, as shown in FIG. 14, the trim plate 37 is an outer periphery of a surface perpendicular to the longitudinal direction of the trim plate 37 by a portion on the end side of the second webbing 32, and is in the holding portion 14. Almost all of the contained part is covered. Since it comprises in this way, it is suppressed that the inner surface of the holding | maintenance part 14 and the trim plate 37 contact directly, and abnormal noise generation | occurrence | production is suppressed.
The side plate facing portion 14b and the second return portion 14d extend in parallel with each other at a distance slightly larger than the thickness of the trim plate 37, and the side plate facing portion 14b and the second return portion 14d are disposed between the side plate facing portion 14b and the second return portion 14d. The trim plate 37 to which the second force cloth 32 is sewn is configured to be held in parallel with the side plate facing portion 14b and the second return portion 14d.

As shown in FIG. 14, the surface of the side plate 11 on the inner surface of the sheet S and facing the second return portion 14d rises toward the inner side of the sheet S and the second return portion 14d, and the thickness is increased. The thick portion 19 that is thick is provided so as to face the second webbing 32. By comprising in this way, the support rigidity of the holding | maintenance part 14 improves. Further, since the thick portion 19 is provided along the second webbing 32, it also functions as a guide when the second webbing 32 and the trim plate 37 are assembled.
Since the front edge portion 12 is in a position on the front side of the seat S that supports the back surface of the occupant, it is desirable that the front edge portion 12 does not protrude toward the inside of the seat S. Therefore, the holding portion 14 is arranged with the side plate facing portion 14b and the second return portion 14d serving as the holding surface of the trim plate 37 along the front-rear direction of the seat S, and becomes the front end portion of the side frame 10. The front edge portion 12 is prevented from projecting inside the sheet S.

As shown in FIGS. 13 and 15, the upper end 14 u and the lower end 14 l of the holding portion 14 are end surfaces that are shaped in the horizontal direction of the sheet S. Further, the U-shaped portion 14 a is formed over the entire area of the side frame 10 in the extending direction, and the upper end 14 u and the lower end 141 of the holding portion 14 are not provided with end portions.
The upper end 14u of the holding part 14 is opened upward, but the lower end 14l of the holding part 14 is closed with a wall made of a resin material as a lid.
Accordingly, at the upper end 14u of the holding portion 14, only the side plate facing portion 14b, the first return portion 14c, and the second return portion 14d have end portions. With this configuration, the holding portion 14 has the first return portion 14 c protruding on the front edge portion 12 in the extending direction of the front edge portion 12, and the end portion of the second force cloth 32. And since it becomes easy to confirm the holding | maintenance part 14 used as the attachment position of the trim plate 37, attachment workability | operativity improves.
Further, the U-shaped portion 14a is formed so as to rise toward the outside of the curved surface at a position slightly above the upper end 14u of the front edge portion 12 and a position slightly below the lower end 14l, and the thickness is increased. A thick portion 17 is provided. By comprising in this way, the rigidity of the holding | maintenance part 14 improves.

As shown in FIG. 13, the rear edge portion 13 holds the end portion of the first webbing 31 at one place in the center in the extending direction of the rear edge portion 13 extending substantially in the vertical direction of the sheet. The holding part 15 is formed.

As shown in FIG. 16, the holding portion 15 includes an L-shaped portion 15a in which the rear end of the side plate 11 is bent in an L-shape toward the inside of the sheet S, and an end portion inside the sheet S of the L-shaped portion 15a. The side plate facing portion 15b as a plate portion facing portion extending from the front side of the sheet S and facing the side plate 11 and the end of the side plate facing portion 15b at the front side of the sheet S are substantially perpendicular to the outside of the sheet S. A restriction portion that is bent toward the side plate 11 and is substantially perpendicular to the side plate 11 and a return portion 15c as a first return portion are provided.
The L-shaped portion 15a is formed by laminating a known sheet-like CFRP (carbon fiber reinforced plastic) material in which fibers are substantially aligned and hardened in one direction at the time of molding. The fiber direction of the CFRP material is a direction in which a force is applied to the L-shaped portion 15a when the airbag module 6 is deployed, and is parallel to the surface of the trim plate 33 housed in the holding portion 15 as shown in FIG. It is the width direction.
As shown in FIG. 16, the tip of the return portion 15 c and the trim plate 33 are chamfered at the corners, so that damage to the first webbing 31 can be suppressed.
Further, as shown in FIG. 16, the trim plate 33 has the outer periphery of the surface perpendicular to the longitudinal direction of the trim plate 33 covered almost entirely by the end portion side of the first webbing 31. Since it comprises in this way, it is suppressed that the inner surface of the holding | maintenance part 15 and the trim plate 33 contact directly, and abnormal noise generation | occurrence | production is suppressed.

The L-shaped portion 15a and the return portion 15c extend in parallel with each other at a distance slightly larger than the thickness of the trim plate 33, and the first baffle is provided between the L-shaped portion 15a and the return portion 15c. The trim plate 33 sewn 31 is configured to be held parallel to the L-shaped portion 15a and the return portion 15c.
Since there is a relatively large space around the rear edge portion 13, the holding portion 15 arranges the L-shaped portion 15 a and the return portion 15 c serving as the holding surface of the trim plate 33 along the width direction of the sheet S. ing.

The end of the first baffle 31 is arranged behind the sheet S from the bolt 18. By comprising in this way, the deterioration of the workability | operativity of the terminal of the 1st bedding 31 and the trim plate 33 is suppressed. Further, depending on the setting of the positional relationship between the bolt 18 and the end of the first webbing 31 and the trim plate 33, the end of the first webbing 31 and the trim plate 33 may rotate when the airbag module 6 is deployed. It is also possible to suppress by the bolt 18.

The upper end 15u and the lower end 15l of the holding portion 15 are end surfaces shaped as if they were cut in the horizontal direction of the sheet S, as shown in FIGS. Further, the L-shaped portion 15 a is formed over the entire region of the side frame 10 in the extending direction, and no end portion is provided at the upper end 15 u and the lower end 15 l of the holding portion 15.
The upper end 15u of the holding part 15 is opened upward, but the lower end 15l of the holding part 15 is closed with a wall made of a resin material as a lid.
Therefore, at the upper end 15u of the holding portion 15, only the side plate facing portion 15b and the return portion 15c have end portions. By configuring in this way, the holding portion 15 has the side plate facing portion 15b protruding on the rear edge portion 13 in the extending direction of the rear edge portion 13, and the end portion and trim of the first force cloth 31. Since it becomes easy to confirm the holding part 15 used as the attachment position of the plate 33, attachment workability | operativity improves.

Moreover, the part adjacent to the holding | maintenance part 15 among the fillet parts 13a becomes the thick part 13b formed thicker than the part of the other fillet parts 13a. As shown in FIG. 12, the thick portion 13 b is disposed so that the cushion pad 5 on the rear side of the seat S faces the recessed portion 5 a that is recessed so that the inner side of the seat S moves backward toward the rear of the seat S. By comprising in this way, it can suppress that the surrounding structure of the thick part 13b becomes large.
Further, on the inner surface of the sheet S of the side plate 11, from the position adjacent to the upper holding portion 14 to the position adjacent to the holding portion 15, the position adjacent to the holding portion 15 from the position adjacent to the lower holding portion 14. The bead 16 is formed in a straight line and the holding portions 14 and 15 are reinforced to the extent that there is no hindrance to the attachment of the first webbing 31 and the second webbing 32. The means for reinforcing the holding portions 14 and 15 is not limited to beads, and other means for improving rigidity may be used.

An airbag module 6 is fixed to the side frame 10.
The airbag module 6 of the present embodiment is a caseless airbag module that does not have a module case. As shown in FIG. 12, the airbag module 6 includes an inflator 61, a folded airbag 63, a retainer 6 c that holds the inflator 61, and a wrap material 6 d that wraps the airbag 63.
The outer peripheral portion of the inflator 61 is fixed to the retainer 6 c and the side frame 10 by bolts 18 erected toward the inside of the seat S. The inflator 61 may be fixed to the side frame 10 by an inflator mounting member other than a bolt.

The inflator 61 is disposed in the airbag 63, and the airbag 63 is deployed in front of the seat S by the gas ejected from the inflator 61.
The airbag 63 is held in a folded state by a wrap material 6d made of a cloth bag or the like, and the wrap material 6d can be easily broken when the airbag 63 is deployed.
In the present embodiment, the airbag module 6 is configured from a caseless one, but is not limited to this and may be configured as a module case.
As shown in FIG. 12, the cushion pad 5 has a space 7 for storing the airbag module 6.

The trim cover 4 is made of a known material, and, as shown in FIG. 17, a front gusset portion 41 that encloses the left and right bank surfaces from the center of the seat surface and a side gusset portion 42 that extends from the peripheral side surface to the back surface, and further, The back gusset portion (not shown) is sewn in a bag shape by being connected to the side gusset portion 42 with a slide fastener (not shown) so as to be opened and closed.
The trim cover 4 is formed with a rupture portion 40 at the apex bulging at the bank portion of the front gusset portion 41 and the side gusset portion 42. The breaking portion 40 is sewn together so that the ends of the front gusset portion 41 and the side gusset portion 42 can be torn by the tensile force due to the inflation of the airbag while maintaining the strength that can withstand normal usability. Yes.

The first force cloth 31 (inner side force cloth) and the second force cloth 32 (outer side force cloth) are made of a cloth-like material having small stretchability, and transmit stress due to inflation of the airbag to the breaking portion 40. Play a role.
As shown in FIG. 17, the first webbing 31 is made of a substantially rectangular fabric that is elongated in the direction in which a tensile force is applied, and one end is a breakage 40, and the front gusset 41 and the side gusset of the trim cover 4. The end portion of the portion 42 and one end of the second webbing 32 are sewn together. A trim plate 33 is sewn to the other end of the first force cloth 31.

As shown in FIG. 17, the second webbing 32 has a substantially parallel structure in which the side 34 on the broken part 40 side and the side 35 on the opposite side of the broken part 40 are substantially parallel, and the side 34 on the broken part 40 side is formed long. Made of trapezoidal cloth. The side 35 on the opposite side of the fractured portion 40 is provided with two mounting portions 36 for mounting the trim plate 37 protruding in a rectangular shape.
The side 34 of the second webbing 32 on the side of the fractured portion 40 is the fractured portion 40 and is sewn together with the front gusset portion 41 and the side gusset portion 42 of the trim cover 4 and one end of the first webbing 31. ing. As shown in FIG. 17, trim plates 37 are sewn to the attachment portions 36 on the side 35 opposite to the second force cloth 32.

The trim plates 33 and 37 are rectangular plates made of hard resin. The trim plates 33 and 37 are force end portions holding members used to hold the shapes of the ends of the first force cloth 31 and the second force cloth 32. Since the trim plates 33 and 37 are fixed to the ends of the first and second webbings 31 and 32, the terminals of the first and second webbings 31 and 32 are held by the holding portions 14 and 15. Workability when plugged into is improved. In the present embodiment, the trim plates 33 and 37 are fixed to the ends of the first and second webbings 31 and 32, but the present invention is not limited to this, and the trim plates 33 and 37 are not used. In addition, a plurality of ends of the first buff 31 and the second buff 32 are sewed by bending back, sewed by wrapping a plurality of layers, or sewed by wrapping a plurality of layers in one direction. You may insert what was crushed in the holding | maintenance parts 14 and 15. FIG.

The first webbing 31 and the second webbing 32 are drawn into the space 7 from the breaking portion 40 as shown in FIG. The trim plate 33 at the other end of the first webbing 31 is held by the holding unit 15 at the rear edge 13 of the side frame 10, and the trim plate 37 at the other end of the second webbing 32 is attached to the side frame 10. It is held by the holding portion 14 of the front edge portion 12.

As shown in FIGS. 12 and 14, the end portion of the second baffle 32 is attached to the side frame 10 by being integrated with the trim plate 37 and being accommodated in the holding portion 14. At this time, the second return portion 14 d of the holding portion 14 is formed longer than the width of the trim plate 37 in the direction perpendicular to the longitudinal direction, and the second return portion 14 d covers the trim plate 37. ing.
Further, as shown in FIGS. 12 and 16, the end portion of the first baffle 31 is attached to the side frame 10 by being integrated with the trim plate 33 and being accommodated in the holding portion 15. At this time, the return portion 15 c of the holding portion 15 is formed longer than the width of the trim plate 33 in the direction perpendicular to the longitudinal direction, and the return portion 15 c covers the trim plate 33.

Attachment of the first webbing 31 and the second webbing 32 to the side frame 10 is performed according to the following procedure.
First, the operator bends the attachment portion 36 of the second webbing 32 once at the boundary between the trim plate 37 and the attachment portion 36, and overlaps the trim plate 37 and the attachment portion 36 by the width of the trim plate 37.

Next, while holding the trim plate 37 and the mounting portion 36, the trim plate 37 is brought into contact with the inside of the curved surface of the front edge portion 12 and is disposed at a position slightly above the upper end 14 u of the holding portion 14. Next, the trim plate 37 is slid downward along the inside of the curved surface of the front edge portion 12 and inserted into the holding portion 14. The trim plate 37 is pushed in until the end of the trim plate 37 in the advancing direction comes into contact with the wall of the lower end 14l of the holding portion 14 and cannot move further downward. The connection with the frame 10 is completed.
The same operation is performed for all the attachment portions 36, and the attachment of the second webbing 32 to the side frame 10 is completed.

Next, the end of the first webbing 31 is bent once at the boundary between the trim plate 33 and the end, and the trim plate 33 and the end are overlapped by the width of the trim plate 33.
Next, while holding the trim plate 33 and the end portion, the trim plate 33 is brought into contact with the inner surface of the rear edge portion 13 and disposed at a position slightly above the upper end 15 u of the holding portion 15. Next, the trim plate 33 is slid downward along the inner surface of the rear edge portion 13 and inserted into the holding portion 15. The trim plate 33 is pushed in until the end portion of the trim plate 33 in the advancing direction comes into contact with the wall portion of the lower end 15l of the holding portion 15 and cannot move further downward. The connection with the frame 10 is completed.

In the present embodiment, the end portions of the first force cloth 31 and the second force cloth 32 are attached to the holding portions 14 and 15 provided integrally with the side frame 10, and separate members such as hooks and listing wires are provided. Since no mounting member is used, the number of parts can be reduced, and costs, warranty parts and assembly man-hours can be reduced.
Further, it is not necessary to use separate attachment members such as hooks or listing wires in order to attach the end portions of the first baffle 31 and the second baffle 32 to the side frame 10 side. The attachment rigidity of the attachment part of the edge part of the cloth 31 and the 2nd force cloth 32 can be improved. As a result, the guidance of the airbag deployment direction when the airbag module 6 is deployed by the end portions of the first and second webbings 31 and 32 can be further stabilized. In addition, in order to attach the end portions of the first baffle 31 and the second baffle 32 to the holding portions 14 and 15 provided integrally with the side frame 10, as compared with the case where separate attachment members are used. And the deformation | transformation of the to-be-attached part to which the edge part of the 1st force cloth 31 and the 2nd force cloth 32 is attached is suppressed.

Although the holding portion 14 shown in FIGS. 12 to 15 is provided on the front edge portion 12, a holding portion 14 ′ shown in FIG. 18 may be provided instead of the holding portion 14.
The holding portion 14 ′ has a raised portion 14 a ′ in which the front end of the side plate 11 ′ is raised toward the inner side of the sheet S, and branches from the root 14 b ′ of the raised portion 14 a ′ to the front of the sheet S, and is raised toward the inner side of the sheet S. The regulation part 14c 'which protruded along 14a', and the protrusion 14d 'which the front-end | tip inside sheet | seat S of regulation part 14c' protruded toward sheet | seat S back are provided.

A portion from the raised portion 14a ′ to the restricting portion 14c ′ through the root 14b ′ serves as a groove for accommodating the trim plate 37 ′.
The regulating portion 14c ′ is formed over the entire length of the side frame in the longitudinal direction, but the raised portion 14a ′ is provided only in the holding portion 14 ′, and above and below the holding portion 14 ′. Since the raised portion 14 a ′ is not provided, the trim plate 37 ′ is brought into contact with the inner side surface on the rear side of the sheet S of the restricting portion 14 c ′ above the holding portion 14 ′ and is then slid to thereby hold the holding portion. 14 'can be easily attached.

As shown in FIG. 18, the trim plate 37 ′ attached to the second webbing 32 is made of a hard resin plate, and the cross section cut by a plane perpendicular to the longitudinal direction is a long and narrow elliptical direction. The end portion is provided with a concave portion 37a ′ having an L-shaped cross section that is recessed in the thickness direction of the trim plate 37 ′, and a portion adjacent to the L-shaped concave portion 37a ′ is formed at the end. The thin portion 37b 'is formed thinner than the other portions.
The thin-walled portion 37b ′ is attached with the attachment portion 36 of the second webbing 32, and the recessed portion 37a ′ is engaged with the protrusion 14d ′ at the time of assembly so that the holding portion 14 ′ of the trim plate 37 ′ can be engaged. It is possible to suppress the dropout of the.
Since the other configuration of the holding unit 14 ′ is the same as that of the holding unit 14, description thereof is omitted.

The rear edge portion 13 is provided with a holding portion 15 shown in FIGS. 12, 13, and 16, but a holding portion 15 ′ shown in FIG. 19 may be provided instead of the holding portion 15.
The holding portion 15 ′ has a sheet S from a first wall portion 15 a ′ in which the rear end of the side plate 11 ′ is bent in an L shape and vertically bent toward the inside of the sheet S, and a root 15 b ′ of the first wall portion 15 a ′. The second wall portion 15c ′ branched backward and erected in parallel along the first wall portion 15a ′ toward the inside of the sheet S, and the tip of the second wall portion 15c ′ inside the sheet S are the sheet S is provided with a protrusion 15d ′ protruding toward the front.
A portion extending from the first wall portion 15a ′ to the second wall portion 15c ′ through the root 15b ′ serves as a groove for accommodating the trim plate 33 ′.

The second wall 15c ′ is formed over the entire length of the side frame 10 ′ in the longitudinal direction, but the first wall 15a ′ is provided only in the holding portion 15 ′. Since the first wall portion 15a ′ is not provided above and below 15 ′, the trim plate 33 ′ is attached to the inner surface of the second wall portion 15c ′ above the holding portion 15 ′ on the front side of the sheet S. It can be easily attached to the holding portion 15 'by sliding after being brought into contact with.
Since the configuration of the trim plate 33 ′ attached to the first webbing 31 is the same as that of the trim plate 37 ′, description thereof is omitted.
An end portion of the first baffle 32 is attached to the thin wall portion 33b ′ of the trim plate 33 ′, and the recess portion 33a ′ is retained by holding the trim plate 33 ′ by engaging the projection 15d ′ at the time of assembly. The drop-off from the portion 15 ′ can be suppressed.
Since the other configuration of the holding unit 15 ′ is the same as that of the holding unit 15, description thereof is omitted.

Other examples shown in FIGS. 11 to 19 include, for example, an airbag module-equipped seat, an airbag module attached to a side frame of a seat back frame, each terminal of a trim cover, and two ends of two blanches. The trim cover rupture part is formed by sewing together, and the airbag module is wrapped with two blanches pulled from the rupture part to the inside of the trim cover, and the entire seat back including the airbag module is covered with the trim cover. It solves the problem of Japanese Patent No. 4560659.
In other words, in Japanese Patent No. 4560659, it is only necessary to draw the baffle from the opening edge of the back pad into the inside of the cavity and to hang the hook of the trim cord on the latch pin of the module cover inside the cavity. The power cloth can be assembled compactly and easily.

However, the structure in which the guide member for guiding the deployment direction of the airbag module is attached to the attached portion such as the seat frame via the attachment member such as the hook of Japanese Patent No. 4560659 has a large number of parts and is assembled. Reduction of man-hours was desired.
According to another example shown in FIGS. 11 to 19, the assembly man-hour can be reduced by reducing the number of parts, and the connecting portion between the airbag module side and the guide member is deformed by the deployment force of the airbag. Is suppressed, and an airbag module-equipped seat having high attachment rigidity between the airbag module side and the guide member can be provided.

Other examples shown in FIGS. 11 to 19 are also expressed as follows.
(1) A seat equipped with an airbag module for storing an airbag,
A seat frame forming a skeleton of the seat;
The airbag module attached to the seat frame;
A guide member attached to the cover member of the seat and guiding a deployment direction of the airbag module,
The seat frame includes a holding portion that holds the guide member integrally formed with the seat frame.
Therefore, since a separate mounting member is not used, the number of parts can be reduced, and the number of assembling steps can be reduced.

(2) The holding unit includes a regulating unit that regulates movement of the guide member held by the holding unit.
Therefore, the guide member can be prevented from being detached from the holding portion, and the guidance in the airbag deployment direction when the airbag is deployed by the guide member can be further stabilized.
(3) The holding portion is provided in a flange portion where an end portion of the seat frame is bent.
Therefore, since the holding portion is provided on the highly rigid flange portion, the mounting rigidity of the guide member is improved.

(4) The seat frame includes a plate portion and the flange portion where the end portion of the plate portion is bent,
At the end portion of the flange portion of the seat frame, a plate portion facing portion that is bent from the end portion of the flange portion to form a surface facing the plate portion, and further from the plate portion facing portion toward the plate portion. And a first return part bent and
The restricting portion includes the first return portion,
The holding portion includes a region surrounded by the flange portion, the plate portion facing portion, and the first return portion.
Therefore, it is possible to realize an attachment portion for directly attaching the guide member to the seat frame side with a simple configuration.

(5) The seat frame includes a plate portion and the flange portion where the end portion of the plate portion is bent,
At the end portion of the flange portion of the seat frame, a plate portion facing portion that is bent from the end portion of the flange portion to form a surface facing the plate portion, and further from the plate portion facing portion toward the plate portion. A first return portion that is bent and a second return portion that is further opposed to the plate portion facing portion from the first return portion, and is provided between the plate portion facing portion and the plate portion. Provided,
The restricting portion includes the second return portion,
The holding portion includes a region surrounded by the plate portion facing portion, the first return portion, and the second return portion.
Therefore, it is possible to realize an attachment portion for directly attaching the guide member to the seat frame side with a simple configuration.

(6) The flange portion is provided so as to extend in the vertical direction along the horizontal end portion of the seat frame.
The holding portion is provided in a part of the flange portion in the vertical direction,
The upper end of the holding part opens upward,
The restricting portion is not formed at a position adjacent to the upper end portion above the upper end portion of the holding portion.
The guide member can be attached to the holding portion by sliding from above the holding portion. Accordingly, since the direction of the force applied to the guide member when the airbag module is deployed and the direction of attaching the guide member have an angle, even if force is applied to the guide member when the airbag module is deployed, guidance is provided from the attachment port of the guide member. It can suppress that a member remove | deviates and can improve support rigidity.

(7) The wall portion constituting the holding portion is made of a material containing a fiber reinforced material,
The fiber direction of the fiber reinforced material is along the direction in which the holding portion is pulled by the guide member when the airbag module is deployed.
Therefore, it is possible to suppress deformation of the holding portion when a force for pulling the guide member is applied when the airbag module is deployed.

(8) A fillet portion is formed in a portion where the plate portion and the flange portion are continuous, and the fillet portion of the holding portion is thicker than the fillet portion in a portion other than the holding portion. It is formed as a thick part.
Therefore, it is possible to suppress deformation of the holding portion when a force for pulling the guide member is applied when the airbag module is deployed.

(9) The thick portion is formed across the vertical direction of the holding portion, and is inclined with respect to the plate portion and the flange portion.
Therefore, the support rigidity by the thick part can be further increased.
(10) A terminal shape holding member that holds the shape of the end portion is fixed to the end portion of the guide member, and the restricting portion extends to cover the terminal shape holding member.
Therefore, the support rigidity of the guide member can be improved by providing the terminal shape holding member and by covering the terminal shape holding member with the restricting portion during assembly.
(11) A wall that closes the end portion is formed at the lower end portion of the holding portion.
Accordingly, it is possible to suppress the guide member from falling off from below the holding portion.

S Seat S1 Seat back S2 Seating part S3 Headrest F Seat frame 1 Seat back frame 10 Side frame 11 Side plate 12 Front edge part 13 Rear edge part 21 Upper frame 22 Lower frame 23 Pillar support part 2 Seating frame 3 Reclining mechanism 4 Trim cover 40 Breaking portion 41 Front gusset portion 42 Side gusset portion 5 Cushion pad 51 Seat back side pad 52 Side pad 5a Recess 6 Air bag module 61 Inflator 62 Mounting bracket 63 Air bag 64 Inflator bracket 6c Retainer 6d Wrap material 7 Space 8 Skin shape Maintenance member 81 Opening covering part 81a Covering part 81b Extension part 81c Side 82 Back bending part 83 Surface layer 84 Shape holding member 85 Cushion pad 13a Fillet part 13b, 17, 19 Thickness Part 14, 14 ', 15, 15' holding part 14a U-shaped part 14a 'protuberance part 14b side plate facing part 14b', 15b 'root 14c first return part 14c' regulating part 14d second return part 14d ', 15d 'projection 14l, 15l lower end 14u, 15u upper end 15a L-shaped part 15a' first wall part 15b side plate facing part 15c return part 15c 'second wall part 16 bead 18 bolt 108 second skin shape maintaining member 181 first Two opening covering portion 181a Second covering portion 181b Second extending portion 181c Second side 182 Second rear bent portion 183 Surface layer 184,184 'Shape holding member 184d Side 185 Cushion pad 208 Third skin shape maintaining member 281 First Three opening covering portion 281a Third covering portion 281b Third extending portion 281c Third side 282 Third rear bent portion 31 First Force cloth 32 Force cloth, second force cloth 33, 33 ', 37, 37' Trim plate 33a ', 37a' Recess 33b ', 37b' Thin part 34 Side 35 on break side Side 36 on opposite side of break portion Part 37 trim plate 40 breaking part 41 front gusset part 42 side gusset part 50 clip member P slit (non-continuous part)

Claims (8)

1. A vehicle seat cushion pad covered with a skin material,
   The cushion pad includes a discontinuous portion that divides the cushion pad at a position facing the fracture portion of the skin material,
   The space surrounded by the inner wall of the divided cushion pad forms a space for air bag module placement,
   In the space for arranging the airbag module, a skin shape maintaining member that covers the seat side of the space is arranged,
   The skin shape maintaining member includes a stepped portion for positioning to another member constituting the seat.
2. The skin shape maintaining member is
   A side covering portion covering at least a part of the side of the seat of the space for arranging the airbag module;
   A rear covering portion that is bent from the side covering portion and extends toward the inner side in the seat width direction behind the space for arranging the airbag module;
   At the position where the rear covering portion and the side covering portion are continuous, the upper end and the lower end protrude from the upper end and the lower end of the rear covering portion and the side covering portion, respectively, and the vertical length is the rear covering. Hinge portion formed longer than the vertical length of the portion and the side covering portion,
   The cushion pad according to claim 1, further comprising:
3. 3. The cushion pad according to claim 2, wherein the side covering portion is covered with a laminate of the skin shape maintaining member, the cushion pad, and the skin material.
4. 4. The cushion pad according to claim 3, wherein a layer closest to the space for arranging the airbag module is formed of the hardest material in the laminate.
5. The skin shape maintaining member has a substantially L-shaped cross section bent at the hinge portion,
   The cushion pad according to any one of claims 2 to 4, wherein the rear covering portion is formed to be thicker than other portions of the skin shape maintaining member.
6. The cushion pad according to any one of claims 1 to 5, wherein the skin shape maintaining member is insert-molded in the cushion pad.
7. A vehicle seat equipped with an airbag module for storing an airbag,
   A seat frame forming a skeleton of the seat;
   The airbag module attached to the seat frame;
   A guide member attached to the skin material of the seat and guiding the deployment direction of the airbag module;
   A vehicle seat comprising: the cushion pad according to claim 1 disposed between the seat frame and the skin material.
8. One end side of the guide member is fixed to the fracture portion of the skin material,
   The guide member is drawn into the seat inside the space through the front of the space for arranging the air bag module, and the other end side is attached to the front edge side of the side frame. The vehicle seat according to claim 7.

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