JP2014094686A - Fitting member and airbag module equipment seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting member capable of restraining torque between webbing and the fitting member when deploying an airbag.SOLUTION: A fitting member 50 is provided for fitting an end part side 37a of a guide member 32 in a deployment direction of an airbag module 6 in a fitting object part 10. A locking part 37 composed of a raw material harder than the guide member 32 is fitted on the end part side 37a of the guide member 32. The fitting member 50 is provided with a holding space 55 for detachably holding the locking part 37 on the inside and a passage 69 extending up to an outside surface of the fitting member 50 from a sidewall of the holding space 55. The sidewall of the holding space 55 is provided with a first surface 56 forming the passage 69 on one end side and a second surface 57 opposed to the first surface 56, and a projection part 58 projecting toward the first surface 56, is provided on the end part side distant from the passage 69 of the second surface 57.

Description

  The present invention relates to an attachment member and an airbag module equipment sheet, and more particularly, to an attachment member and an airbag module equipment sheet for locking a webbing that wraps an airbag module provided on a vehicle seat.

  As an airbag module equipped seat, the airbag module is attached to the side frame of the seat back frame, and the trim cover rupture part is formed by stitching together each end of the trim cover and one end of two blanches. There has been proposed one in which an airbag module is wrapped with two blanches pulled into the inside of the trim cover and the entire seat back including the airbag module is covered with the trim cover (for example, Patent Document 1).

In Patent Document 1, a module cover that accommodates an air bag module is provided with a bar-shaped latching pin that extends in the vertical direction, and is hooked on the opposite end of the rupture portion of the webbing that continues from the rupture portion of the trim cover. The hook is connected. The opposite end portion of the rupture portion of the bundling is fixedly connected to the module cover by hooking the hook on the latch pin of the module cover.
According to the invention of Patent Document 1, it is only necessary to pull the bundling into the inside of the cavity from the opening edge of the back pad, and to hook the hook of the trim cord on the latching pin of the module cover inside the cavity. , Can be assembled compactly and easily.

However, in the invention of Patent Document 1, since the hook is only hooked on the latch pin, the hook is rotated with respect to the latch pin when the airbag is deployed.
Therefore, the applicant of the present invention has a mechanism for restraining rotation between the mounting member and the edge of the side frame at the same time as locking the mounting member for locking the force cloth that wraps the airbag module to the edge of the side frame. The airbag module equipment sheet provided is proposed (Japanese Patent Application No. 2011-260623).

Japanese Patent No. 4560659

  However, in the invention of Japanese Patent Application No. 2011-260623, it was not possible to suppress the rotation that occurs at the portion where the baffle is connected to the mounting member when the airbag is deployed.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an attachment member and an airbag module equipment sheet capable of suppressing a rotational force between a bundling and an attachment member when an airbag is deployed. Is to provide.

  According to the attachment member of the first aspect, the subject is an attachment member that attaches the end portion side of the guide member that guides the deployment direction of the airbag module to the attached portion, and the end portion side of the guide member includes A locking portion made of a material harder than the guide member is attached, and the mounting member detachably holds the locking portion to which the end portion side of the guide member is attached, A passage extending from the side wall of the holding space to the outer side surface of the mounting member, and the side wall of the holding space is opposed to the first surface having the passage formed on one end side and the first surface. And a projecting portion projecting toward the first surface is provided on an end portion side of the second surface far from the passage.

  Thus, since the protrusion part which protrudes toward a 1st surface is provided in the edge part side far from the channel | path of a 2nd surface, a guide member is drawn in a channel | path at the time of expansion | deployment of an airbag module. Force in the direction is applied, and the engaging portion has a rotational force in a direction in which the end on the passage side of the engaging portion is raised to the passage side with the end on the opposite side of the passage of the engaging portion as an axis, and the passage of the engaging portion When a force is applied to slide the end on the opposite side along the second surface to the passage side, the protrusion comes into contact with the guide member that covers the end on the passage opposite side of the locking portion, In order to weaken the rotational force and the force to be slid, the rotation of the locking portion and the sliding along the second surface are suppressed. As a result, the locking portion can be prevented from coming off the holding space before the force applied to the locking portion exceeds a certain force, and the release of the locking state between the guide member and the mounting member during general use is suppressed. At the same time, even when the airbag module is deployed, the force can be transmitted by the guide member in a timely manner.

At this time, as in claim 2, the passage includes a protrusion having a triangular cross-section including a surface on the side close to the passage and a surface on the side far from the passage, and the side close to the passage. It is preferable that the surface of the surface rises substantially perpendicular to the second surface, and the surface far from the passage has an acute angle with respect to the second surface.
Since it is configured in this way, when the protruding part comes into contact with the guide member that covers the end of the locking part on the opposite side of the passage, The rotational force applied to the portion and the force to be slid can be effectively weakened.

At this time, as in claim 3, it is preferable that the end portion on the first surface side of the passage is perpendicular to the first surface.
If comprised in this way, since the location erected from the first surface in the passage is perpendicular to the first surface, the wall portion including the first surface can be kept thick. , Moderate rigidity can be secured. In addition, since the entrance part from the holding space to the passage is perpendicular to the holding space, when the locking part comes out of the holding space and goes out of the mounting member through the passage, it is smoothly caught without being caught. The air bag is discharged and the inflation output of the airbag is smoothly transmitted to the guide member.

At this time, as in claim 4, it is preferable that the first surface includes a rotation suppressing portion that suppresses the rotational force applied to the locking portion by the deployment of the airbag module.
With this configuration, it is possible to prevent the locking portion from being released from the holding space until the force applied to the locking portion exceeds a certain force, and the engagement between the guide member and the mounting member during general use can be suppressed. The release of the stop state can be suppressed, and at the same time, the force transmission by the guide member can be performed with good timing even when the airbag module is deployed.

At this time, as in claim 5, it is preferable that the rotation suppressing portion is a step formed by the first surface of the holding space and the passage.
Since it comprises in this way, a rotation suppression part can be achieved with a simple structure. Moreover, the rigidity of an attachment member can be improved by providing a level | step difference between a 1st surface and a channel | path.

At this time, as in claim 6, the protrusion is provided at an end of the first surface of the second surface far from the rotation suppression portion, and the rotation suppression portion is the first It is preferable that it is provided at the end of the second surface on the side farther from the protruding portion.
Since it comprises in this way, the part used as the axis of the rotational force concerning a latching | locking part, and the part which draws the circumference are suppressed by the edge part of a 2nd surface, and the edge part of a 1st surface. Therefore, the rotation suppression effect can be enhanced.

  According to the airbag module equipped seat of claim 7, the subject is a vehicle seat equipped with an airbag module for storing an airbag, wherein the side frame extends along a side portion of the vehicle seat. And the airbag module attached to the side frame, a guide member for guiding the deployment direction of the airbag module, and an attachment member attached to the side frame, to which an end side of the guide member is attached. A locking portion made of a material harder than the guide member is attached to the end side of the guide member, and the mounting member includes the locking portion to which the end side of the guide member is attached. A holding space that is detachably held inside, and a passage that extends from a side wall of the holding space to an outer surface of the mounting member, and the side wall of the holding space A first surface on which the passage is formed, and a second surface opposite to the first surface, the end of the second surface remote from the passage is on the first side This is solved by the provision of a protruding portion that protrudes toward the surface.

  Thus, since the protrusion part which protrudes toward a 1st surface is provided in the edge part side far from the channel | path of a 2nd surface, a guide member is drawn in a channel | path at the time of expansion | deployment of an airbag module. Force in the direction is applied, and the engaging portion is rotated in the direction in which the end on the passage side of the engaging portion rises to the passage side with the end on the opposite side of the engaging portion passage as the axis, and the reverse of the passage of the engaging portion. When a force is applied to slide the end on the side along the second surface toward the passage side, the protrusion comes into contact with the guide member covering the end on the opposite side of the passage of the locking portion, and rotates. In order to weaken the force and the force to be slid, the rotation of the locking portion and the sliding along the second surface are suppressed. As a result, the locking portion can be prevented from coming off the holding space before the force applied to the locking portion exceeds a certain force, and the release of the locking state between the guide member and the mounting member during general use is suppressed. At the same time, even when the airbag module is deployed, the force can be transmitted by the guide member in a timely manner.

At this time, as in claim 8, the side frame includes a cut-and-raised portion for attaching the attachment member, and the cut-and-raised portion supports an occupant rear surface support that supports the rear surface of the occupant seated on the vehicle seat. It is preferable that the member is disposed on the side frame while avoiding the attachment portion.
Since comprised in this way, interference with the attachment part of an attachment member and the attachment part of a passenger | crew back surface support member can be suppressed.

  According to the first aspect of the present invention, since the projecting portion projecting toward the first surface is provided on the end portion side far from the passage of the second surface, the guide member is deployed when the airbag module is deployed. A force in the direction in which it is pulled into the passage is applied, and a rotational force in a direction in which the end of the engagement portion on the passage side is raised to the passage side with the end on the passage opposite side of the engagement portion as an axis, When a force is applied to slide the end of the locking portion on the opposite side of the passage along the second surface toward the passage, the guide member covers the end of the locking portion on the opposite side of the passage. In order to weaken the rotational force and the force to be slid, the rotation of the locking portion and the sliding along the second surface are suppressed. As a result, the locking portion can be prevented from coming off the holding space until the force applied to the locking portion exceeds a certain force, and the release of the locking state between the guide member and the mounting member during general use is suppressed. At the same time, even when the airbag module is deployed, the force can be transmitted by the guide member in a timely manner.

  According to the invention of claim 2, when the protrusion comes into contact with the guide member that covers the end portion on the opposite side of the passage of the locking portion, the apex of the projection having a triangular cross section is caught by the guide member, The rotational force applied to the portion and the force to be slid can be effectively weakened.

  According to invention of Claim 3, since the location stood up from the 1st surface becomes perpendicular | vertical with respect to a 1st surface among the channel | paths, it keeps the wall part containing a 1st surface thick. Therefore, moderate rigidity can be secured. In addition, since the entrance part from the holding space to the passage is perpendicular to the holding space, when the locking part comes out of the holding space and goes out of the mounting member through the passage, it is smoothly caught without being caught. The air bag is discharged and the inflation output of the airbag is smoothly transmitted to the guide member.

  According to invention of Claim 4, it can suppress that a latching | locking part remove | deviates from a holding | maintenance space before the force concerning a latching | locking part exceeds fixed force, and the relationship between the guide member and attachment member at the time of general use The release of the stop state can be suppressed, and at the same time, the force transmission by the guide member can be performed with good timing even when the airbag module is deployed.

  According to invention of Claim 5, a rotation suppression part can be achieved with a simple structure. Moreover, the rigidity of an attachment member can be improved by providing a level | step difference between a 1st surface and a channel | path.

  According to invention of Claim 6, the part used as the axis | shaft of the rotational force concerning a latching | locking part and the part which draws the circumference are suppressed with the edge part of a 2nd surface, and the edge part of a 1st surface. Therefore, the rotation suppression effect can be enhanced.

According to the invention of claim 7, since the projecting portion projecting toward the first surface is provided on the end portion side far from the passage of the second surface, the guide member is deployed when the airbag module is deployed. A force in the direction in which it is pulled into the passage is applied, and a rotational force in a direction in which the end of the engagement portion on the passage side is raised to the passage side with the end on the passage opposite side of the engagement portion as an axis, When a force is applied to slide the end of the locking portion on the opposite side of the passage along the second surface toward the passage, the guide member covers the end of the locking portion on the opposite side of the passage. In order to weaken the rotational force and the force to be slid, the rotation of the locking portion and the sliding along the second surface are suppressed. As a result, the locking portion can be prevented from coming off the holding space before the force applied to the locking portion exceeds a certain force, and the release of the locking state between the guide member and the mounting member during general use is suppressed. At the same time, even when the airbag module is deployed, the force can be transmitted by the guide member in a timely manner.
According to invention of Claim 8, interference with the attachment part of an attachment member and the attachment part of a passenger | crew back surface support member can be suppressed.

It is an external view of the airbag module equipment sheet | seat which concerns on one Embodiment of this invention. It is a perspective view of a seat frame of an air bag module equipment seat concerning one embodiment of the present invention. It is AA sectional drawing of FIG. 1, Comprising: It is explanatory drawing which has arrange | positioned the bedding which concerns on one Embodiment of this invention between a fracture | rupture part and a side frame. It is explanatory drawing which shows the state which sewed together the trim cover and power cloth which concern on one Embodiment of this invention in the fracture | rupture part. It is sectional explanatory drawing which shows the state which connected the power cloth which concerns on one Embodiment of this invention to the side frame via the attachment member. It is a perspective view which shows the state which connected the power cloth which concerns on one Embodiment of this invention to the side frame via the attachment member. It is a perspective view of the attachment member concerning one embodiment of the present invention. It is a perspective view of the attachment member concerning one embodiment of the present invention. It is a side view of the attachment member concerning one embodiment of the present invention. It is a perspective view which shows the state which connected the power cloth which concerns on one Embodiment of this invention to the side frame via the attachment member which concerns on other embodiment of this invention.

Hereinafter, an attachment member and an airbag module equipment sheet according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an external view of an airbag module equipment sheet according to an embodiment of the present invention. FIG. 2 is a perspective view of a seat frame of an airbag module equipment seat according to an embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 1, and is an explanatory diagram in which a webbing according to an embodiment of the present invention is disposed between a break portion and a side frame. FIG. 4 is an explanatory view showing a state in which the trim cover and the bundling according to the embodiment of the present invention are stitched together at the break portion. FIG. 5 is an explanatory cross-sectional view showing a state in which a webbing according to an embodiment of the present invention is connected to a side frame via an attachment member. FIG. 6 is a perspective view showing a state in which a webbing according to an embodiment of the present invention is connected to a side frame via an attachment member. FIG. 7 is a perspective view of an attachment member according to an embodiment of the present invention. FIG. 8 is a perspective view of an attachment member according to an embodiment of the present invention. FIG. 9 is a side view of an attachment member according to an embodiment of the present invention. FIG. 10 is a perspective view showing a state in which a webbing according to an embodiment of the present invention is coupled to a side frame via an attachment member according to another embodiment of the present invention.

As shown in FIG. 1, the vehicle seat S as the airbag module equipment seat according to the present embodiment includes a seat back S1, a seating portion S2, and a headrest S3.
In the vehicle seat S, a seat frame F as shown in FIG. 2 is provided. The seat frame F 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. A cushion and a trim cover are provided outside the seat back frame 1 and the seating frame 2 to constitute a seat back S1 and a seating portion S2.

As shown in FIGS. 1 to 3, 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 trim cover 4 that covers the seat back frame 1 and the cushion pad 5. The force cloth 32, one end of which is sewn to the breaking portion 40 of the trim cover 4, is used as a main component.
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. It is comprised by frame shape by the lower frame 22 which connects a part.
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 is formed of a substantially plate body that is curved so that the lower width is wider than the upper one. As shown in FIG. 3, the substantially flat side plate 11, the front edge portion 12 formed by folding the front end portion of the side plate 11 inward in a U shape, and the rear end portion bent inward in an L shape. And a rear edge portion 13.
The side frame 10 is attached with a locking portion 15 having a locking hole for locking both ends of the erection member 25 as a pair of occupant support members made of S springs that support the occupant from the rear, and an attachment member 50. For this purpose, a pair of cut-and-raised parts 16 are provided.
The cut-and-raised portion 16 is provided in a U-shape at a portion near the front edge portion 12 of the side plate 11, and is bent so that the tip further faces the front edge portion 12 after standing vertically on the inner side of the sheet. .

A pair of cut and raised portions 16 are provided near the upper end and near the lower end of the side plate 11 and are formed above and below the locking portion 15 so as to sandwich the locking portion 15 of the erection member 25.
The narrow front and rear narrow portion of the side frame 10 has a lower rigidity than the wide front and rear wide portion below the side frame 10, but the upper raised portion 16 has a narrow front and rear width of the side frame 10. Among these parts, since it is arranged near the upper frame 21, rigidity can be compensated.
As shown in FIG. 3, the airbag module 6 is fixed to the side frame 10 on the outer surface of the seat.

The airbag module 6 of the present embodiment has a known configuration, and as shown in FIG. 3, the inflator 6a, the folded airbag 6b, the retainer 6c that holds the inflator 6a, the inflator 6a, and the airbag 6b. Is provided with a module case 6d.
In the airbag module 6, the inflator 6a is held by the retainer 6c, the tightening bolt 18 of the retainer 6c is protruded to the outside from the airbag 6b, and the inflator 6a is integrated with the retainer 6c near the mounting base of the airbag 6b. In addition, the clamp bolt 18 of the retainer 6c is protruded to the outside, and the whole is accommodated in the module case, and is assembled by providing harnesses and connectors necessary for circuit configuration with related devices such as an impact sensor. Yes.
The module case 6d is configured by hingedly connecting a lid that can be opened and closed to the case body.

The inflator 6a is disposed in the airbag 6b, and the airbag 6b is deployed in front of the seat S by the gas ejected from the inflator 6a.
In the present embodiment, the airbag module 6 is configured from a module provided with a module case 6d, but is not limited to this and may be configured as a caseless one.
As shown in FIG. 3, a space 7 for storing the airbag module 6 is formed in the cushion pad 5.

The trim cover 4 is made of a known material. As shown in FIGS. 3 and 4, the trim cover 4 includes 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. Further, the rear gusset portion 43 is sewn to the end of the side gusset portion 42 on the opposite side of the front gusset portion 41, and is sewn into a bag shape.
A broken portion 40 is formed at the apex bulged 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 torn by the tensile force due to the inflation of the airbag while maintaining the strength that can withstand normal usability. Yes.

As shown in FIG. 4, the webbing 32 is co-sewn on the breaking portion 40.
The force cloth 32 is made of a cloth-like material with small stretchability, and plays a role of transmitting stress due to the inflation of the airbag to the breaking portion 40. The force cloth 32 corresponds to the guide member in the claims.

As shown in FIG. 4, the force cloth 32 is made of a substantially rectangular cloth. A plurality of attachment portions 36 for attaching the trim plate 37 projecting in a rectangular shape are provided at both ends on the side 35 facing the fracture portion 40.
The trim plate 37 as a locking portion is a rectangular plate made of hard resin. The trim plate 37 is used to maintain the shape of the end of the attachment portion 36 of the webbing 32. Since the trim plate 37 is fixed to the end of the force cloth 32, workability when the end of the force cloth 32 is inserted into the holding space 55 is improved. In the present embodiment, the trim plate 37 is fixed to the attachment portion 36 of the force cloth 32, but the present invention is not limited to this, and the end of the attachment portion 36 of the force cloth 32 is not limited to this. Insert into the holding space 55 of the mounting member 50 what has been sewed in multiple turns, sewed by winding in multiple layers, or crushed in one direction by winding in multiple layers. May be.

As shown in FIG. 3, the force cloth 32 is drawn into the space 7 from the breaking portion 40. The trim plate 37 fixed to the attachment portion 36 of the force cloth 32 is locked to the front edge portion 12 of the side frame 10 via the attachment member 50.
As shown in FIG. 3, one end of a webbing 31 is sewn to the side gusset portion 42 of the trim cover 4 and the stitching portion 44 of the rear side gusset portion 43. The locking hook 33 is fixed by sewing. The force cloth 31 is drawn into the space between the cushion pad 5 and the airbag module 6 disposed behind the airbag module 6 and in front of the rear gusset 43, and the locking hook 33 is connected to the rear edge of the side frame 10. Locked to the portion 13.

The mounting member 50 is integrally molded from a hard resin, and as shown in FIG. 5, an outer surface shape having a substantially U-shaped cross section substantially along the cross-sectional U-shaped shape of the inner wall of the front edge portion 12 of the side frame 10. A flange contact portion 51 having a flange contact portion 51 formed on the front end portion 12 end side of the flange contact portion 51, and an end portion of the latch portion 52 on the opposite side of the flange contact portion 51. 32 is provided so as to extend to the extension side of 32 and to cover the outer surface of the front edge portion 12. Two protrusions 54 b extending in the vertical direction are provided on the inner surface of the extension portion 54, and can contact the outer surface of the front edge portion 12.
In the latching portion 52, a groove 53 for latching the attachment member 50 on the front edge portion 12 is formed continuously from the flange contact portion 51 on the end portion 12 side of the flange abutting portion 51. ing. The groove 53 includes a space between the flange contact portion 51 and the extending portion 54 that branches from the front edge 12 side end of the flange contact portion 51. The groove 53 sandwiches the end portion of the front edge portion 12.
The flange contact portion 51 is formed with a holding space 55 for holding and locking the trim plate 37 inside, and a passage 69 for the force cloth 32 drawn out from the holding space 55.

The holding space 55 is a space that is large enough to lock the trim plate 37 inside, and is formed as an opening that opens from the upper end to the lower end with the upper and lower ends open.
The holding space 55 is a rectangular parallelepiped space formed along a surface extending in a direction between the extending direction of the side plate 11 and the direction in which the front edge portion 12 rises from the side plate 11.
The holding space 55 is a space sandwiched between a first surface 56 in which a passage 69 is formed at one end and a second surface 57 that faces the first surface 56 in parallel.
The passage 69 is formed between a surface where the wall surface connecting the first surface 56 and the second surface 57 extends to the first surface 56 side, and an end portion 56a near the front edge portion 12 of the first surface 56. Formed between the first wall portion 59 having the first surface 56 as the inner surface and the second wall portion 60 extending from the flange contact portion 51 to the opposite side of the front edge portion 12. It is continuous in the space.

On the second surface 57, a protruding portion 58 protruding from the second surface 57 is formed on the side far from the front edge portion 12, that is, in the vicinity of the end portion 57 d far from the passage 69.
The protruding portion 58 has a triangular cross section and is formed to extend in the same shape from the upper end to the lower end of the mounting member 50.
The protruding portion 58 is a surface that is close to the front edge portion 12, that is, the surface 58 a close to the passage 69, has an acute angle with the second surface 57, has a gentle slope, and is far from the passage 69. The side surface 58 b is formed as a surface substantially orthogonal to the second surface 57. Here, “substantially orthogonal” means an angle of about 80 ° to 100 °.
The angle formed by the surface 58 a with the second surface 57 is smaller than the angle formed by the surface 58 b with the second surface 57.

The surface 58b is formed so that the angle between the second surface 57 and the second surface 57 is an obtuse angle, the inclined directions of the surface 58b and the surface 58a are the same direction, the tip 58c side of the protruding portion 58, and the surface 58b is the first. It may have a shape that covers the base that rises from the second surface 57.
When the trim plate 37 is disposed in the holding space 55, the tip 58c of the projecting portion 58 is formed at a position slightly opposite to the center side of the end portion 37a far from the passage 69 of the trim plate 37. . As a result, when the airbag module 6 was deployed, the trim plate 37 was rotated about the end portion 37a, and the end portion 37a was forced to slide on the second surface 57 toward the passage 69. Sometimes, the front end 58c is brought into contact with a position close to the end portion 37a, so that the trim plate 37 can be prevented from slipping toward the passage 69 side.
As shown in FIG. 6, the portion of the second surface 57 on the side along the front edge portion 62 is cut into a rectangular parallelepiped shape on the upper end side and the lower end side, and only the central portion in the vertical direction is on the second surface 57. It is in. As described above, since the portion of the second surface 57 on the front edge portion side surface 62 side is notched, the amount of bending of the second wall portion 60 with respect to the mounting member 50 main body increases, Easy assembly. In addition, the trim plate 37 and the webbing 32 can be easily inserted into the holding space 55.

The surface on the opposite side of the front edge portion extending surface 62 extending along the front edge portion 12 of the flange contact portion 51 is a curved outer surface 61 as shown in FIG. The outer side surface 61 is continuous from the base of the extending portion 54 to the passage 69, and the end portion side of the outer surface 61 on the side of the passage 69 is a first wall having the first surface 56 of the holding space 55 as an inner surface. Part 59 is configured.
As shown in FIG. 6, the outer side surface 61 is a protruding portion 61 a in which the upper end side and the lower end side are cut out in a sector-shaped fan column shape at the position where the groove 53 is extended in the depth direction, and only the central portion in the vertical direction protrudes. It is formed as. The protruding portion 61 a extends so as to bridge the extending portion 54 and the surface of the outer side surface 61 on the first wall portion 59 side along the extending surface of the webbing 32. Since the upper and lower portions of the protrusion 61a are cut out in this way, the attachment member 50 can be gripped by placing the index finger and the middle finger on the upper and lower cutout portions of the protrusion 61a, and the small attachment member 50 can be handled. At the same time, it is easy to cut and raise the attachment member 50 to the portion 16.

Further, the front edge portion extending surface 62 extending along the front edge portion 12 of the flange contact portion 51 extends to the side plate 11 side and continues to the side plate extending portion 63 extending along the side plate 11, and further along the side plate. The second wall portion 60 that extends from the installation portion 63 to the opposite side of the front edge portion 12 and covers the first wall portion 59 so as to form a passage 69 between the first wall portion 59 and the second wall portion 60. It is continuous.
As shown in FIGS. 6 and 8, the front edge extending surface 62 has an upper end side and a holding space 55 extending to the front edge 12 side in the longitudinal direction in a cross section perpendicular to the vertical direction. The lower end side is notched in a columnar shape, and is formed as a protruding portion 62a in which only the central portion in the vertical direction protrudes. The projecting portion 62 a extends so as to bridge the second wall portion 60 and the inner wall surface of the groove 53 along the inner surface of the front edge portion 12. As described above, since the upper and lower portions of the projecting portion 62a are cut out, it is possible to hold the attachment member 50 by placing the index finger and the middle finger on the notched portions on the upper and lower portions of the projecting portion 61a and simultaneously placing the thumb on the projecting portion 62a. Thus, handling of the mounting member 50 having a small size is facilitated, and at the same time, the work of locking the mounting member 50 to the raised portion 16 is facilitated.
A protrusion 62b extending in the vertical direction is provided on the front edge portion installation surface 62 at a position close to the groove portion 53 and at the position of the R-shaped apex of the front edge portion installation surface 62 so as to contact the front edge portion 12. It is possible. Further, the side plate side portion 63 is also provided with a protrusion 63 b extending in the vertical direction so as to be able to contact the side plate 11.

  The second wall portion 60 is formed of a substantially plate body portion extending continuously from the side plate extending portion 63 to the opposite side of the front edge portion 12, and has a substantially acute angle with respect to the outer surfaces of the side plate 11 and the side plate extending portion 63. And is inclined to the first wall 59 side.

As shown in FIG. 9, the second wall portion 60 has a shape in which the upper and lower end portions are obliquely cut out, and the obliquely cut portions constitute the oblique sides 60 c and 60 d, and the holding space 55. In addition, the workability of inserting the webbing 32 into the passage 69 is improved.
A concave portion 64 for engaging the tip of the cut and raised 16 is formed on the outer surface of the second wall portion 60.
The holding space 55 may have one of the upper end and the lower end, preferably only the upper end opened and the other closed. The mounting member 50 with the upper end of the holding space 55 opened and the lower end closed is particularly suitable for use in only one of the left and right side frames 10. The attachment member 50 in which both the upper end and the lower end of the holding space 55 are opened is particularly suitable when used for both the left and right side frames 10. At this time, the side that is the upper end when used for one of the left and right side frames 10 becomes the lower end side when used for the other side frame 10.

As shown in FIG. 5, the mounting member 50 has the groove 53 formed in the holding space 55 in the state where the trim plate 37 to which the end portion of the webbing 32 is sewn is held. By being locked to 12, it is attached to the side frame 10.
The attachment of the webbing 32 to the side frame 10 via the attachment member 50 is performed according to the following procedure.
First, the operator pushes the trim plate 37 and the force cloth 32 into the holding space 55 and the passage 69 in a state where the attachment portion 36 of the force cloth 32 is bent once at the boundary between the trim plate 37 and the attachment portion 36. The connection between the trim plate 37 to which the cloth 32 is attached and the attachment member 50 is completed.
Next, the groove 53 of the mounting member 50 is locked at a position adjacent to the cut-and-raised portion 16 of the front edge portion 12 of the side frame 10, and the front edge side surface 62 is pushed against the front edge portion 12. .
The tip of the cut-and-raised part 16 is engaged with the recess 64 of the second wall part 60. Thus, the attachment work of the attachment member 50 to the side frame 10 is completed.
The above operation is performed for all the attachment members 50, and the attachment of the webbing 32 to the side frame 10 via the attachment members 50 is completed.

When the airbag module 6 is inflated, the force in the direction of the arrow F1 in FIG. 5 applied to the webbing 32 is transmitted to the trim plate 37, and the end 37b of the trim plate 37 on the side close to the passage 69 is passed through the passage 69. Power to try to pull in to work.
At this time, the trim plate 37 has an end 37a on the side far from the passage 69 as an axis, and the end 37b is pulled into the passage 69 to rotate in the R1 direction and the end serving as the axis of rotation in the R1 direction. The portion 37a receives a force to slide the first surface 56 on the side closer to the passage 69. Since the projecting portion 58 is formed on the first surface 56, the trim plate 37 does not receive the end portion 37 a until these forces exceed a certain force even when these two forces are received. By the frictional force between the covering cloth 32 and the protrusion 58, rotation in the R1 direction and sliding toward the side close to the passage 69 are suppressed.

  Thereafter, when the force in the direction of arrow F <b> 1 applied to the webbing 32 exceeds a certain force due to the expansion of the airbag module 6, the trim plate 37 whose movement is suppressed by the protrusion 58 is drawn into the passage 69. At the same time, the first wall 59 is bent by the force of the trim plate 37 rotating in the R1 direction, the tip of the first wall 59 is opened in the R2 direction, and the trim plate 37 passes through the passage 69 to hold the space. Pulled out from 55. When the trim plate 37 is removed from the holding space 55, the connection between the force cloth 32 and the side frame 10 is released, and the airbag 6b is inflated. Further, the expansion force of the airbag 6b is transmitted to the breaking portion 40 by the webbing 32, the breaking portion 40 is broken, and the airbag 6b is inflated into the vehicle interior of the vehicle.

As shown in FIG. 10, the passage 69 is erected from the first surface 56 instead of the end of the first surface 56 on the side plate extending portion 63 side. A step 56 c may be formed between the end on the side plate side portion 63 side and the passage 69.
By forming the step 56c, when the airbag module 6 is deployed, the force applied to the end 37b of the trim plate 37 is pressed against the step 56c until the force is applied to the end 37b, and the end 37b is pulled into the passage 69. Is suppressed.
In this specification, the case where the attachment member 50 is attached to the side frame 10 of the seat back frame 1 has been described. However, the present invention is not limited to this, and the attachment member 50 is attached to the side portion or side frame of the seating frame 2. Of course it is possible. In that case, the cut-and-raised portion 16 is formed on the side or side frame of the seating frame 2, and the attachment member 50 is attached to the cut-and-raised portion 16.

S vehicle seat S1 seat back S2 seating part S3 headrest F seat frame 1 seat back frame 2 seating frame 3 reclining mechanism 4 trim cover 5 cushion pad 6 airbag module 6a inflator 6b airbag 6c retainer 6d module case 7 space 10 side frame 11 Side plate 12 Front edge portion 13 Rear edge portion 15 Locking portion 16 Cut-and-raised portion 18 Fastening bolt 21 Upper frame 22 Lower frame 23 Pillar support portion 25 Construction member 31, 32 Force cloth 33 Locking hook 35 Side 36 Mounting portion 37 Trim Plates 37a, 37b, 57d End 40 Breaking part 41 Front gusset part 42 Side gusset part 43 Rear gusset part 44 Sewing part 50 Mounting member 51 Flange contact part 52 Latch part 53 Groove part 54 Extension part 54b, 62b, 63b Projection 5 Holding space 56 First surface 56a End portion 56c Step 57 Second surface 58 Projection portions 58a, 58b, 64a, 64b Surface 58c Tip 59 First wall portion 60 Second wall portion 60a Tapered portions 60c, 60d Slope side 61 Outer side surface 61a, 62a Protruding portion 62 Front edge side surface 63 Side plate side portion 64 Recessed portion 69 Path

Claims (8)

An attachment member for attaching the end side of the guide member for guiding the deployment direction of the airbag module to the attached portion,
A locking portion made of a material harder than the guide member is attached to the end portion side of the guide member,
The attachment member includes a holding space that detachably holds the locking portion to which the end portion side of the guide member is attached, and a passage that extends from a side wall of the holding space to an outer surface of the attachment member. ,
The side wall of the holding space includes a first surface in which the passage is formed on one end side, and a second surface facing the first surface,
An attachment member, wherein a projecting portion projecting toward the first surface is provided on an end portion side of the second surface far from the passage. In the passage, the projecting portion is formed by a protrusion having a triangular cross section including a surface near the passage and a surface far from the passage.
The surface close to the passage rises substantially perpendicularly to the second surface, and the surface far from the passage has an acute angle with respect to the second surface. The mounting member according to claim 1.   The mounting member according to claim 1, wherein an end of the passage on the first surface side is perpendicular to the first surface.   4. The attachment member according to claim 1, wherein the first surface includes a rotation suppressing portion that suppresses a rotational force applied to the locking portion when the airbag module is deployed. 5.   The mounting member according to claim 4, wherein the rotation suppressing portion is a step formed by the first surface of the holding space and the passage. The protrusion is provided at an end of the first surface on the side farther from the rotation suppression portion of the second surface,
The attachment member according to claim 4 or 5, wherein the rotation suppressing portion is provided at an end portion of the second surface on the side farther from the protruding portion of the first surface. A vehicle seat equipped with an airbag module for storing an airbag,
A side frame extending along a side portion of the vehicle seat;
The airbag module attached to the side frame;
A guide member for guiding the deployment direction of the airbag module;
An end side of the guide member is attached, and an attachment member attached to the side frame,
A locking portion made of a material harder than the guide member is attached to the end portion side of the guide member,
The attachment member includes a holding space that detachably holds the locking portion to which the end portion side of the guide member is attached, and a passage that extends from a side wall of the holding space to an outer surface of the attachment member. ,
The side wall of the holding space includes a first surface on which the passage is formed, and a second surface facing the first surface,
The airbag module equipment sheet according to claim 1, wherein a projecting portion projecting toward the first surface is provided on an end portion side of the second surface far from the passage. The side frame includes a cut-and-raised portion for attaching the attachment member,
8. The airbag module equipment according to claim 7, wherein the cut-and-raised portion is disposed on the side frame so as to avoid an attachment portion of an occupant rear surface support member that supports the rear surface of the occupant seated on the vehicle seat. Sheet.

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