JP6544358B2 - Sheet - Google Patents

Description

  The present invention relates to a seat that can be stored on a floor.

  For example, in a vehicle seat or the like, a seat that can be accommodated on the floor is known in the state where the foot portion is folded toward the bottom surface of the seat cushion (see, for example, JP-A-2002-362202). By the way, in the conventional seat mentioned above, covering the bottom of a seat cushion with a cover member is considered. In this case, it is desirable to improve the mounting rigidity of the cover member (fixing strength of the cover member to the seat cushion).

  Also, for example, as a structure for attaching a cover member for covering a part of a seat to a seat for a vehicle etc., a structure for engaging an engagement portion provided for the cover member with an engaged portion provided for the seat is known. is there. For example, in JP-A-2014-34247, a rod-like portion is provided on the sheet as the engaged portion, and a plate-like portion having a claw is provided on the cover member as the engaging portion. In the state, the claws of the plate-like part are hooked to the rod-like part. In the above-described prior art, when there is a space between the engaged portion and the main body of the cover member in a state where the engaging portion of the cover member is engaged with the engaged portion of the sheet, the cover member Can move in the thickness direction with respect to the sheet, and rattling of the cover member occurs.

  Further, for example, in a seat for a vehicle etc., a foldable seat (tip up seat) having a foot portion which is flipped up toward the bottom surface of the seat cushion and bounces up is known (for example, JP-A-2002-362202) See the official gazette). By the way, in the conventional foldable sheet | seat, covering the bottom face of the seat cushion provided with the foot part with a cover member is considered. In this case, it is desirable to secure the rigidity of the cover member.

  The present invention has been made in consideration of such problems, and an object thereof is to provide a sheet capable of improving the attachment rigidity of a cover member.

  In order to achieve the above object, the seat of the present invention has a seat cushion having a frame, a foot portion that can be folded toward the bottom surface of the seat cushion, and an opening for passing the foot portion. A cover member at least partially covering the bottom surface of the seat cushion, and a cap member covering the opening, the frame having a floor receiving portion projecting from the bottom surface side of the seat cushion A member is sandwiched between the bottom of the floor receiving portion and the cap member.

  According to the above configuration, the cover member is stably fixed by the cover member being sandwiched between the floor receiving portion and the cap member. Therefore, the attachment rigidity of the cover member to the seat cushion can be improved.

  In the above sheet, the cover member may have a first positioning male portion, and the bottom portion of the floor receiving portion may have a first positioning female portion into which the first positioning male portion is inserted.

  With this configuration, the cover member can be easily positioned with respect to the floor receiving portion, and assembly workability can be improved.

  In the above sheet, the cap member may have a second positioning male portion, and the cover member may have a second positioning female portion into which the second positioning male portion is inserted.

  With this configuration, the cap member can be easily positioned with respect to the cover member, and assembly workability can be improved.

  In the seat described above, the cap member and the floor receiving portion may be fixed to the second positioning male portion of the cap member.

  According to this configuration, the cap member and the floor receiving portion can be fixed at a high rigidity point.

  In the above seat, a portion of the cap member covering the floor receiving portion is a convex portion protruding toward the front side, and a foot capable of receiving the foot portion on the side portion of the convex portion The recess may be integrally provided.

  With this configuration, the recess for the foot is provided at the location where the rigidity is high, so that the decrease in the rigidity of the cap member due to the provision of the recess for the foot can be effectively suppressed.

  In the above sheet, the sheet further includes a cover member attachment structure for attaching the cover member to the seat body including the seat cushion, the cover member attachment structure including an engaged portion provided on the sheet body, and the cover member And the movement restricting mechanism which restricts the movement of the cover member relative to the sheet main body in the assembled state of the cover member.

  According to the above configuration, the movement of the cover member with respect to the sheet main body is restricted by the action of the movement restricting mechanism, so rattling of the cover member in the assembled state can be suppressed.

  In the above sheet, the movement restricting mechanism has a restricting protrusion which protrudes from the cover member to the sheet main body side, and in the assembled state of the cover member, the restricting protrusion contacts the engaged portion. You may touch.

  With this configuration, since the engaged portion is held between the engaging portion and the restricting protrusion, rattling of the cover member can be effectively suppressed.

  In the above sheet, the engaged portion may be a rod-like member, and the regulation protrusion may be provided with an urging portion that presses the rod-like member against the engagement portion.

  By this configuration, the rod-like member can be easily assembled to the engaging portion, and rattling of the cover member in the assembled state can be effectively suppressed.

  In the above sheet, the engaging portion and the restricting protrusion may be integrally formed with the cover member, and the engaging portion and the restricting protrusion may be disposed adjacent to each other via a gap.

  With this configuration, the engagement portion is easily bent due to the presence of the gap, so that the engagement portion can be easily assembled to the engagement portion, and the movement restricting function of the regulation projection portion disposed in the vicinity of the engagement portion plays back the cover member. Can be effectively suppressed.

  In the above sheet, the engaging portion may have a plate-like portion facing each other, and the restricting protrusion may have a length at least straddling between root portions of the plate-like portion.

  By this configuration, it is possible to well balance the easiness of bending of the plate-like portion in the opening direction and the securing of appropriate rigidity of the plate-like portion itself.

  In the above sheet, the movement restricting mechanism has a restricting convex portion protruding from the cover member to the sheet main body side, and in the assembled state of the cover member, the restricting convex portion contacts the sheet main body. You may touch.

  By this configuration, rattling of the cover member can be effectively suppressed.

  In the sheet described above, the sheet main body may have a frame provided with a plate member, and the control convex portion may abut on the plate member in an assembled state of the cover member.

  According to this configuration, since the control convex portion abuts on the plate member of the frame having a relatively high rigidity, rattling of the cover member can be further effectively suppressed.

  In the above sheet, the cover member may be provided with a plurality of the engaging portions, and the movement restricting mechanism may be disposed outside the plurality of the engaging portions.

  With this configuration, since the movement restricting mechanism is disposed at a position where the restricting effect can be easily exhibited, rattling of the cover member in the assembled state can be further effectively suppressed.

  In the above seat, the foot portion has left and right side feet, and the cover member is a reinforcing portion connecting the left and right accommodation recesses capable of respectively receiving the left and right side feet and the left and right accommodation recesses. And may be provided.

  According to the above configuration, since the left and right accommodation recesses are provided in the cover member, the rigidity can be improved. Further, since the cover member is provided with the reinforcing portion that connects the left and right receiving recesses, the rigidity can be improved by the reinforcing portion in addition to the rigidity improvement by the left and right receiving recesses. Thus, the rigidity of the seat cover can be improved.

  In the above-described seat, the reinforcing portion may be a convex portion having a U-shaped cross section which protrudes toward the bottom surface of the seat cushion.

  With this configuration, it is possible to suppress the enlargement of the seat cover while effectively improving the rigidity of the accommodation recess connected to the reinforcing portion.

  In the above-described seat cover, the cover member may be provided with an attachment portion to which the cap member is attached, along with the reinforcing portion.

  With this configuration, since the mounting portion is disposed in the vicinity of the reinforcing portion, the rigidity of the mounting portion can be improved, and the cap member can be stably mounted on the cover member.

  In the above-mentioned sheet, the attaching portion may be a hole, and a protrusion may be provided on the left and right sides of the hole and closer to the reinforcing portion than the hole.

  The provision of such a projection contributes to the improvement of the rigidity of both the hole and the reinforcement.

  In the above sheet, ribs extending in the left-right direction and facing each other are provided in a portion of the cap member facing the attachment portion of the cover member, and the projection may be disposed between the ribs. Good.

  By this configuration, rattling in the attached state of the cap member can be suppressed.

  In the sheet described above, the housing recess may be provided with a housing groove for housing a part of the cap member, and the reinforcing portion may be connected to the housing groove.

  By this configuration, the rigidity of the accommodation groove can be effectively improved.

  In the above-described sheet, the cover member may be provided integrally with a support protrusion projecting downward from the reinforcing portion. With this configuration, in the cover member, the rigidity of the support convex portion can be effectively improved.

  According to the sheet | seat of this invention, the attachment rigidity of a cover member can be improved.

FIG. 1 is an overall perspective view of a vehicle seat. FIG. 2A is a side view of the sheet in the normal state (deployed state), and FIG. 2B is a side view of the sheet in the stored state. It is the figure which looked at the seat cushion, the cover for seats, and the folded foot part from the bottom side of a seat cushion. It is a perspective view of a frame, a foot part, and a cover for seats. It is an exploded perspective view of a frame, a foot part, and a cover for seats. It is a top view of a frame, a foot part, and a cover for seats. It is a top view of the cover for sheets. 8A is an enlarged view of a portion A of FIG. 7, and FIG. 8B is a cross-sectional view of a reinforcing portion. It is sectional drawing along the IX-IX line in FIG. FIG. 7 is a cross-sectional view taken along the line X-X in FIG. It is the perspective view which looked at the cover member from the downward side. It is the perspective view which looked at the cover for sheets from the downward side. It is a perspective view of a cap member. It is sectional drawing along the XIV-XIV line in FIG.

  Hereinafter, preferred embodiments of the present invention will be listed and described with reference to the accompanying drawings.

  FIG. 1 is an overall perspective view of a vehicle seat 10. In the following description, “left and right”, “right and left” or “seat width direction” means the vehicle width direction, and the left direction is indicated by the arrow L in the vehicle seat 10 or its components. , The right direction is indicated by an arrow R. In addition, regarding the vehicle seat 10 or its components, the front, the rear, the upper side, and the lower side are respectively indicated by arrows Fr, Rr, Up, and Lw.

  This vehicle seat 10 is a seat 12 (for example, a second row seat or a third row seat) on the rear side of a driver's seat in a wagon or the like, and is folded and configured to be storable on the floor F of the vehicle Type sheet (chip-up sheet or dive-down sheet). In addition, the vehicle seat 10 is configured to be divided into 6 to 4 in the seat width direction and is relatively wide relative to the relatively wide seat 12 (the left seat 12 including the central portion). And a narrow sheet 13 (the right sheet 13). Hereinafter, although the specific configuration of the wide sheet 12 will be described as a representative, it is a matter of course that the present invention is also applicable to the sheet 13.

  As shown in FIG. 2A, the seat 12 includes a seat cushion 14 (seat main body) for supporting the buttocks and thighs of the occupant, a foot portion 16 foldably provided on the lower surface of the seat cushion 14, And a forwardable seat back 18 (seat main body) for supporting the back of the vehicle.

  The seatback 18 can be turned forward by being pivotally supported on the floor upper end portion F2 of the vehicle body via the bracket 19 on the lower side. A curved connecting arm 20 extending obliquely upward from the rear side of the seat cushion 14 is rotatably connected to the seat back 18 so that the seat cushion 14 can be flipped up with the foot portion 16. A lock device 21 capable of holding the lower side portion 43 of the foot portion 16 developed from the seat cushion 14 is installed in the lower floor portion F1.

  A releasable chuck 22 is provided on the back of the seat back 18 on one side in the width direction, and a stop ring (not shown) is provided on the side panel of the vehicle body. Is configured. A seat cover 24 is attached to the bottom of the seat cushion 14.

  In order to store the seat 12 on the floor F, the foot portion 16 is released from the locking device 21 by releasing the locking device 21, and then the seat cushion 14 is flipped up, and then the foot portion 16 is By folding the seat cushion 14 toward the bottom surface of the seat cushion 14, the seat back 18, the seat cushion 14, and the foot portion 16 are overlapped. Then, the chuck 22 is released, and the seat 12 with the seat back 18, the seat cushion 14 and the foot portion 16 stacked is rotated about the support shaft of the bracket 19 and turned forward. Thereby, as shown to FIG. 2B, the sheet | seat 12 can be accommodated in the floor F (floor lower part F1) in the state folded. In the case of a dive down seat, when the seat back 18 is turned forward while the foot portion 16 is locked by the lock device 21, the seat back 18, the seat cushion 14 and the foot portion 16 overlap, and in this state the floor F Can be stored. FIG. 3 is a view of the seat cushion 14, the seat cover 24 and the folded foot portion 16 as viewed from the bottom of the seat cushion 14, and the illustration of the seat back 18 is omitted.

  The seat cushion 14 is a cushion pad (not shown) that is made of an elastically deformable material (for example, a flexible polyurethane foam) that creates a seat cushion shape, and a seat cushion frame 26 (hereinafter, abbreviated as "frame 26") that constitutes a skeleton. The cover and the cushion pad are covered with a skin material.

  4 is a perspective view of the frame 26, the foot portion 16 and the seat cover 24, FIG. 5 is an exploded perspective view of the frame 26, the foot portion 16 and the seat cover 24, and FIG. FIG. 5 is a plan view of a foot portion 16 and a seat cover 24.

  The frame 26 has left and right connecting arms 20 rotatably connected to the lower side of the seat back 18 and a front frame 28 connected to the front of the left and right connecting arms 20 and bridged between the left and right connecting arms 20. A rear frame 30 bridged between the left and right connecting arms 20 at the rear of the front frame 28, an intermediate frame 31 bridged between the rear frame 30 and the front frame 28, and an intermediate frame 31 On the left and right sides, the occupant support plates 32, 34 respectively bridged between the rear frame 30 and the front frame 28, the front wire member 36 (engaged portion) and the rear wire member 38 Have.

  The front frame 28 has left and right side portions 40 extending in the front and rear direction, and a front side portion 41 connecting tip portions of the left and right side portions 40, and has a U-shape in plan view as a whole. Is formed. The front side portion 41 has a shape bent in the middle in the left-right direction in a front view, and has an upper portion 41a, a lower portion 41b, and an inclined portion 41c therebetween.

  The rear frame 30 also has a shape bent in the middle in the left-right direction in a front view, and has an upper portion 30a, a lower portion 30b, and an inclined portion 30c therebetween.

  The intermediate frame 31 is bridged between the inclined portion 41 c of the front frame 28 and the inclined portion 30 c of the rear frame 30. In the present embodiment, each of the front frame 28 and the rear frame 30 is formed of a pipe-like member, and the intermediate frame 31 is formed of a plate-like member.

  One occupant support plate 32 is a plate for supporting the occupant seated on the left side of the vehicle seat 10 and is bridged between the lower portion 41 b of the front frame 28 and the lower portion 30 b of the rear frame 30. It extends in the front-rear direction.

  The other occupant support plate 34 is a plate for supporting the occupant seated on the left and right center of the vehicle seat 10, and is bridged between the upper portion 41a of the front frame 28 and the upper portion 30a of the rear frame 30. And extend in the longitudinal direction.

  The front and rear wire members 36 and 38 are rod-like members provided to assemble the cover member 48 to the seat cushion 14 (specifically, the frame 26). In the present embodiment, the wire member 36 on the front side is fixed to the front frame 28 (specifically, the lower portion 41 b of the front side portion 41).

  As shown in FIG. 5, the wire member 36 extends horizontally in the left-right direction by connecting the lower ends of the short left and right vertical axis portions 36a extending downward from the front frame 28 and the left and right vertical axis portions 36a. And a long horizontal axis portion 36b. A gap extending leftward and rightward is formed between the horizontal axis portion 36 b and the front frame 28.

  In the present embodiment, the rear wire member 38 is bridged between the left connection arm 20 and the intermediate frame 31. The left end of the wire member 38 is connected to the left connecting arm 20. The right end of the wire member 38 is connected to the occupant support plate 34.

  As shown in FIG. 6, the foot portion 16 has left and right side feet 42L, 42R whose root portions are rotatably supported relative to the frame 26, and free ends of the left and right side feet 42L, 42R (rotationally supported (The end opposite to the end side) is connected to each other and has a horizontally extending lower side portion 43, and is formed in a generally U shape as a whole. In FIG. 6, the left side foot 42L is bent halfway, but may be formed in a straight line like the right side foot 42R.

  The foot portion 16 is rotatably supported by the frame 26 via the left and right foot support members 44 (brackets). The foot portion 16 is pivotable to the rear side of the seat cushion 14 so as to be foldable toward the bottom surface of the seat cushion 14. The foot portion 16 extends substantially perpendicularly to the bottom surface of the seat cushion 14 in the unfolded state (see FIG. 2A), and approaches or abuts on the bottom surface of the seat cushion 14 in the folded state (stored state) (FIG. 2B) reference).

  Specifically, in the present embodiment, one foot support member 44 is fixed to the left side portion 40 of the frame 26, and the other foot support member 44 is fixed to the intermediate frame 31. Each of the foot support members 44 is a member having a cross-sectional reverse U-shape opened downward, and rotates the root portions of the left and right side feet 42L and 42R of the foot portion 16 with a support shaft 45 provided near the lower end. Support movable.

  In addition, as a constituent material of each member which comprises the flame | frame 26, the material which has sufficient rigidity so that it may not deform | transform large when receiving a load, for example, metal materials, such as steel materials and aluminum alloy, are mentioned. The joining means of each member which comprises the flame | frame 26 is welding. In addition, you may use together joining by a volt | bolt, an adhesive agent etc. as a joining means.

  The seat cover 24 has a cover member 48 partially covering the bottom of the seat cushion 14 and a cap member 50 covering an opening 83 formed in the cover member 48. The cover member 48 and the cap member 50 are made of, for example, a hard resin material.

  The cover member 48 has a shape generally conforming to the shape of the outer peripheral portion of the frame 26. Therefore, the cover member 48 has the relatively lower upper stage cover portion 48a, the relatively lower lower stage cover portion 48b, and the inclined cover portion 48c that constitutes between the upper stage cover portion 48a and the lower stage cover portion 48b. On the upper surface (the surface on the side of the frame 26) of the cover member 48, a large number of ribs 51, 52 in the left-right direction and the front-rear direction are formed in a grid shape over substantially the entire surface.

  The cover member 48 is attached to the frame 26. In the present embodiment, the right side (upper cover portion 48 a) of the cover member 48 is fixed to the intermediate frame 31 by an appropriate fastening part 47 (screw or the like; see FIG. 6). On the rear side of the cover member 48 on the left side, the hook portion 54 provided on the cover member 48 is attached to the frame 26 by engaging (hooking) the wire member 38 on the rear side. On the front side on the left side of the cover member 48, the engaging portion 56 provided on the cover member 48 is attached to the frame 26 by engaging (hooking) the wire member 36 on the front side.

  A plurality of (two in the illustrated example) hook portions 54 in the cover member 48 are provided. The plurality of hooks 54 are arranged at intervals in the left-right direction. In the present embodiment, the occupant support plate 32 is disposed between the hooks 54 in a state in which the cover member 48 is assembled to the frame 26 (hereinafter referred to as “assembled state of the cover member 48”). The hook portion 54 is integrally formed on the cover main body 49 of the cover member 48 (a portion constituting a wall covering the bottom surface of the seat cushion 14), and protrudes upward from the upper surface of the cover main body 49. The part is bent backward. In the cover member 48, only one hook portion 54 may be provided.

  As shown in FIGS. 6 and 7, in the present embodiment, a plurality of (two in the illustrated example) engagement portions 56 are provided at intervals in the left-right direction. In the assembled state of the cover member 48, the plurality of engagement portions 56 are disposed at a position avoiding the occupant support plate 32, and the occupant support plate 32 is disposed between the engagement portions 56. In the cover member 48, only one engaging portion 56 may be provided.

  As shown in FIG. 8A which is an enlarged view of a portion A in FIG. 7, each engaging portion 56 has a pair of engaging pieces 58 which project from the upper surface of the cover main body 49 and face each other. Each engagement piece 58 is integrally formed on the cover main body 49. The engagement piece 58 has an elastically deformable plate-like portion 60 projecting from the upper surface of the cover main body 49 and a claw portion 62 projecting from one surface of the plate-like portion 60.

  In the pair of engagement pieces 58, the plate portions 60 face each other, one claw portion 62 protrudes toward the other plate portion 60, and the other claw portion 62 protrudes toward the one plate portion 60. To be spaced apart in the front-rear direction. The pair of engagement pieces 58 are alternately arranged with the claws 62 shifted in the left-right direction.

  Since the engaging portion 56 is configured as described above, when attaching the cover member 48 to the bottom surface of the seat cushion 14 (frame 26) in the assembly process of the seat 12, the wire member 36 is interposed between the pair of engaging pieces 58. The pair of engagement pieces 58 elastically deform in the direction in which they are opened in accordance with the insertion of Then, when the wire member 36 climbs over the claw portion 62, the pair of engagement pieces 58 elastically restore, as shown in FIG. 9 (cross sectional view along the line IX-IX in FIG. 6). Portion 62 engages wire member 36. Thereby, the separation between the wire member 36 and the engaging portion 56 is prevented.

  In addition, a reinforcing rib 64 is provided on the surface of the plate portion 60 opposite to the claw portion 62. The reinforcing rib 64 is provided perpendicularly to the plate 60. The reinforcing rib 64 is provided at a position avoiding the back side of the claw portion 62. The reinforcing rib 64 is connected to a laterally extending rib 52 provided on the cover member 48. The reinforcing rib 64 and the rib 52 perpendicularly intersect. The back side of the claw portion 62 of the engagement piece 58 is not connected to the rib 52. For this reason, the plate-like portion 60 is easily deformed at the location where the claw portion 62 is provided.

  By the way, in the state where the engaging portion 56 of the cover member 48 is engaged with the wire member 36, if there is a space between the wire member 36 and the cover main body 49, the cover member 48 becomes the frame 26 (seat cushion It becomes possible to move in the thickness direction (up and down direction with the seat cushion 14 lying down) relative to 14), and rattling of the cover member 48 occurs. So, in this embodiment, the movement control mechanism 70 which controls movement of the cover member 48 with respect to the sheet 12 in the assembled state of the cover member 48 is provided. The movement restriction mechanism 70 will be described below.

  In the present embodiment, the movement restricting mechanism 70 includes a restricting protrusion 72 (see FIGS. 7 to 9) provided on the cover member 48 and a restricting convex 74 (see FIGS. 5, 6, 7, and 10). And. The restricting protrusion 72 protrudes from the cover member 48 toward the frame 26 side (the seat cushion 14 side). As shown in FIG. 9, in the assembled state of the cover member 48, the restricting protrusion 72 abuts against the wire member 36, whereby the restricting protrusion 72 and the engaging portion 56 (specifically, the claws 62) And the wire member 36 is sandwiched and held.

  As shown in FIG. 7, in the present embodiment, the control protrusion 72 is provided on the right side of the right engaging portion 56, that is, on the right side of the plurality of engaging portions 56. Therefore, the control protrusion 72 is provided outside the plurality of engaging portions 56. In addition, the engaging portion 56 and the restricting protrusion 72 are integrally formed with the cover member 48. As shown in FIG. 8A, the engaging portion 56 and the restricting protrusion 72 are disposed adjacent to each other with a slight gap 73 therebetween. The restricting protrusion 72 preferably has at least a length L1 (width: a dimension in the separation direction of the pair of plate-like parts 60) straddling between root portions of the plate-like parts 60. That is, it is preferable that the length L1 of the restricting protrusion 72 be equal to or larger than the distance L2 of the root of the plate-like portion 60.

  As shown in FIG. 9, the restricting protrusion 72 may be provided with a biasing portion 76 that presses the wire member 36 against the engaging portion 56 (the claw portion 62). In the case of the present embodiment, the biasing portion 76 is constituted by the hole 77 opened on the side of the restricting protrusion 72, whereby the protruding end (upper end) of the restricting protrusion 72 can be elastically deformed. As a result, an elastic biasing force is generated on the wire member 36. The biasing portion 76 may be an elastic body (rubber or the like) provided at the projecting end of the regulating projection 72. Alternatively, the biasing portion 76 may be an elastic piece supported at one end of the projecting end of the regulating projection 72.

  On the other hand, as shown in FIG. 10, which is a cross-sectional view taken along the line X-X in FIG. 6, the control convex portion 74 protrudes from the cover member 48 to the seat cushion 14 side (frame 26 side). In the assembled state, it abuts on the frame 26. Specifically, a plate member 78 is provided on the front frame 28 (inside the left corner of the frame 26) of the frame 26, and in the assembled state of the cover member 48, the control projection 74 contacts the lower surface of the plate member 78. Contact. As shown in FIG. 7, in the present embodiment, the control convex portion 74 is provided in the vicinity of the left front corner of the cover member 48. Therefore, the control convex portion 74 is provided on the outer side (the lateral direction outer side) of the plurality of engaging portions 56.

  In the present embodiment, the restriction convex portion 74 is formed in a U-shape (U-shape in which the corner is a right angle) in plan view. The control convex portion 74 may be connected to the longitudinal and lateral ribs 51 and 52. The restricting convex portion 74 may be formed in a U-shape (U-shape) having rounded corners in a plan view. The restriction convex portion 74 may be formed in another shape, for example, may be formed in an I shape (H shape), an L shape, a quadrilateral shape, another polygonal shape or the like in plan view.

  In the case of the present embodiment, since the movement restricting mechanism 70 configured as described above is provided, the movement of the cover member 48 with respect to the sheet 12 is restricted. Thereby, rattling in the thickness direction of the cover member 48 in the assembled state can be suppressed.

  Further, the movement restricting mechanism 70 has a restricting projection 72 projecting from the cover member 48 toward the seat cushion 14, and in the assembled state of the cover member 48, the restricting projection 72 abuts on the wire member 36. The wire member 36 is held between the joint portion 56 and the restriction protrusion 72. Therefore, rattling in the thickness direction of the cover member 48 can be effectively suppressed.

  Since the restriction projection 72 is provided with a biasing portion 76 (see FIG. 9) for pressing the wire member 36 against the engagement portion 56, the wire member 36 can be easily assembled to the engagement portion 56 in the assembly process and The rattling of the cover member 48 in the thickness direction can be effectively suppressed.

  In the case of this embodiment, the engaging portion 56 and the restricting protruding portion 72 are integrally formed with the cover member 48, and the engaging portion 56 and the restricting protruding portion 72 are disposed adjacent to each other through the gap 73 (see FIG. Due to the presence of the gap 73, the engaging portion 56 is easily bent. Therefore, the wire member 36 can be easily assembled to the engaging portion 56, and the movement restricting function of the restricting projecting portion 72 disposed in the vicinity of the engaging portion 56 can effectively suppress the rattling of the cover member 48 in the thickness direction. .

  In the case of the present embodiment, since the restricting protrusion 72 has at least the length L1 straddling between the roots of the plate 60, securing of the flexibility of the plate 60 in the opening direction and the plate It can be well balanced with securing of appropriate rigidity of 60 itself.

  Further, in the case of the present embodiment, the movement restricting mechanism 70 has the restricting convex portion 74 protruding from the cover member 48 to the seat cushion 14 side, and in the assembled state of the cover member 48, the restricting convex portion 74 is a frame. 26 (see FIG. 10). The restricting convex portion 74 in contact with the plate member 78 is restricted in movement with respect to the frame 26. Therefore, rattling in the thickness direction of the cover member 48 can be effectively suppressed further.

  In particular, in the assembled state of the cover member 48, the control convex portion 74 abuts on a plate member 78 provided on the frame 26. As a result, since the control convex portion 74 abuts on the plate member 78 of the frame 26 with relatively high rigidity, rattling in the thickness direction of the cover member 48 can be suppressed more effectively. The restricting convex portion 74 may abut on the frame 26 other than the plate member 78, for example, the front frame 28 itself. In this case, the plate member 78 may not be provided.

  Furthermore, in the case of the present embodiment, the movement restricting mechanism 70 (the restricting protrusion 72 and the restricting convex portion 74) is disposed outside the plurality of engaging portions 56 (see FIG. 7). As described above, since the movement restricting mechanism 70 is disposed at a position where the restricting effect can be easily exerted, rattling of the cover member 48 in the assembled state can be further effectively suppressed.

  In the case of the present embodiment, the engaging portion 56 has the plate-like portions 60 facing each other and the claws 62 protruding from the respective plate-like portions 60, and the claws 62 are alternately arranged. The reinforcement rib 64 is provided in the position which avoided (refer FIG. 8A). By this configuration, the rigidity of the plate-like portion 60 itself is ensured by the reinforcing rib 64, and the claw portion 62 is easily bent in the opening direction, so that the wire member 36 can be easily assembled.

  Further, in the cover member 48, the engaging portions 56 are provided at a plurality of places, and the reinforcing ribs 64 provided in the plurality of engaging portions 56 are connected to the second reinforcing rib (lateral rib 52) However, it is not connected to the side of the claw portion 62. As a result, while securing the rigidity of the plate-like portion 60 itself by the reinforcing rib 64, the claw portion 62 is easily bent in the opening direction, so that the wire member 36 can be easily assembled.

  As described above, the cover member 48 is the cover member 48 that covers the bottom surface of the seat cushion 14, and the seat cushion 14 is provided with the occupant support plate 32 for supporting the occupant, and the engagement portion 56 of the cover member 48. Is provided at a position avoiding the occupant support plate 32 in a plan view (see FIG. 6). With this configuration, interference between the engagement portion 56 and the occupant support plate 32 can be suppressed.

  In particular, in the case of the present embodiment, the engagement portion 56 of the cover member 48 is at two places, and the occupant support plate 32 is disposed between the two engagement portions 56. Therefore, the engagement portion 56 and the occupant support plate Interference with 32 can be suppressed more suitably.

  Incidentally, the movement restricting mechanism 70 is a restricting member which abuts on the cover member 48 in the assembled state of the cover member 48 as shown by a virtual line in FIG. It may have 80. In this case, the restricting member 80 may be fixed to the front frame 28 of the frame 26 by welding or the like, and may be located on the left side of the plurality of engaging portions 56, that is, outside the plurality of engaging portions 56. The restriction member 80 can be formed, for example, in a plate shape.

  Also with such a regulating member 80, it is possible to exhibit the same function as the regulating convex portion 74 and the plate member 78 (see FIG. 10) described above. That is, since the restriction member 80 abuts on the cover member 48 in the assembled state of the cover member 48, rattling of the cover member 48 in the vertical direction (thickness direction) can be suppressed.

  As described above, the seat 12 according to the present embodiment includes the wire member 36 provided on the frame 26 described above, the engagement portion 56 provided on the cover member 48, and the movement restricting mechanism for restricting the movement of the cover member 48. And a cover member mounting structure.

  Next, a structure for improving the rigidity of the cover member 48 will be described.

  As shown in FIG. 5, the cover member 48 is provided with an opening 83 extending in the left-right direction for passing the foot portion 16. The opening 83 in the illustrated example has a substantially rectangular shape having a major axis in the left-right direction. Further, as shown in FIG. 3, the cover member 48 is provided with left and right accommodation recesses 84 (84 L, 84 R) capable of respectively housing the left and right side feet 42 L, 42 R.

  Each of the accommodation recesses 84 has a groove shape recessed toward the bottom surface side (the frame 26 side) of the seat cushion 14, and is provided on the rear side of the opening 83. Each of the accommodation recesses 84 has one end (front end) in the extending direction facing the opening 83. Each of the accommodation recesses 84 has a shallower groove depth toward the rear. The left accommodation recess 84L is bent in accordance with the bent shape of the side foot 42L on the left side of the foot portion 16.

  As shown in FIGS. 5, 7 and 11, the cover member 48 is further provided with a reinforcing portion 86 that connects the left and right housing concave portions 84 (84 </ b> L, 84 </ b> R). In the present embodiment, the reinforcing portion 86 linearly extends along the long axis direction (left and right direction) of the opening 83 in the vicinity of the opening 83, and one end portion thereof is the right side wall of the accommodation recess 84L on the left side. It connects with near the front end of 84La, and the other end connects near the front end of left side wall 84Ra of accommodation recess 84R of the right side. In the case of the present embodiment, the reinforcing portion 86 is a U-shaped (U-shaped) convex portion 87 that protrudes to the bottom surface side of the seat cushion 14.

  As described above, in the present embodiment, since the left and right accommodation recesses 84 are provided in the cover member 48, the rigidity can be improved. Further, since the cover member 48 is provided with the reinforcing portions 86 connecting the left and right accommodation recesses 84, the rigidity can be improved by the reinforcement portions 86 in addition to the rigidity improvement by the left and right accommodation recesses 84. Thus, the rigidity of the seat cover 24 can be improved.

  In addition, since the reinforcing portion 86 is a convex portion 87 having a U-shaped cross section that protrudes to the bottom side of the seat cushion 14, the cover member 48 effectively improves the rigidity of the accommodation recess 84 connected to the reinforcing portion 86. Can be suppressed.

  Next, the structure regarding attachment of the cap member 50 to the cover member 48 is demonstrated.

  The cap member 50 is formed to conform to the shape of the opening 83 provided in the cover member 48, and as a whole, has a substantially rectangular shape whose major axis is in the left-right direction. As shown in FIGS. 7 and 11, a plurality of attachment portions 92 to which a plurality of projecting pieces 90 provided on the cap member 50 are attached are arranged on the cover member 48 at intervals around the opening 83. Ru. Specifically, mounting portions 92 are disposed in front of, in the rear of opening 83 and to the left and right, respectively. Among the attachment portions 92, the attachment portions 92 (hole portions 94a) disposed between the left and right accommodation recesses 84 are disposed side by side with the reinforcing portions 86.

  In the case of the present embodiment, the mounting portion 92 is a hole 94. The projecting pieces 90 provided at intervals on the outer peripheral portion of the cap member 50 are respectively inserted into the holes 94, and the projecting pieces 90 and the holes 94 engage with each other. Of the plurality of holes 94, the holes 94a provided between the left and right housing recesses 84 are formed in the shape of a long hole extending along the extending direction (left and right direction) of the reinforcing portion 86 (convex 87). . A plurality of (three in the illustrated example) holes 94 a are arranged at intervals along the extending direction of the reinforcing portion 86. Also, the hole 94 a is disposed rearward of the reinforcing portion 86.

  As shown in FIG. 11, on the left and right sides of at least one hole 94a, a protrusion that protrudes downward (the outer surface side of the cover member 48; the cap member 50 side) closer to the reinforcing portion 86 than the hole 94a. 96 may be provided. In FIG. 11, projections 96 are provided on the left and right sides of the right and left holes 94a among the three holes 94a. It should be noted that on the left and right sides of at least one hole 94 provided on the front side of the opening 83, a projection 96 that protrudes downward may be provided on the opening 83 side more than the hole 94.

  As shown in FIG. 13, a projecting piece 90 a provided on the front side of the outer peripheral portion of the cap member 50 protrudes forward. On the other hand, the projecting piece 90 b provided on the side of the outer peripheral portion of the cap member 50 and the projecting piece 90 c provided on the rear side both project upward and have an engaging claw 91.

  As shown in FIG. 7, with the cap member 50 attached to the cover member 48, the projecting piece 90 a is inserted into the hole 94 provided on the front side of the opening 83, and the projecting piece 90 b is the opening The projecting pieces 90c are inserted into the holes 94a provided on the rear side of the opening 83 (between the left and right accommodation concave portions 84). In this case, the projection 90b and the projection 90c are engaged with the hole 94 by the engagement claw 91, whereby the cap member 50 is prevented from being detached from the cover member 48.

  Further, as shown in FIG. 13, the cap member 50 is provided with a set of ribs 98 extending in the left-right direction and facing each other. In a state where the cap member 50 is attached to the cover member 48, the above-described protrusion 96 (see FIG. 11) provided on the cover member 48 is disposed between the ribs 98. In the case of the present embodiment, the set of opposing ribs 98 are respectively provided on the front side and the rear side of the cap member 50, and the projecting pieces 90a described above for the front side rib 98 in the front side rib 98 set. And the projection 90c described above is provided on the rear rib 98 in the rear rib set.

  As described above, in the present embodiment, since the mounting portion 92 is arranged in the vicinity of the reinforcing portion 86 side by side with the reinforcing portion 86, the rigidity of the mounting portion 92 can be improved. The cap member 50 can be stably attached.

  Further, in the case of the present embodiment, the protrusion 96 is provided on the left and right sides of the hole 94a on the side of the reinforcing portion 86 rather than the hole 94a, which contributes to the rigidity improvement of both the hole 94a and the reinforcing portion 86. . Furthermore, since the projection 96 is disposed between the mutually opposing ribs 98 provided on the portion of the cap member 50 facing the mounting portion 92 of the cover member 48, rattling of the cap member 50 in the attached state is suppressed. be able to. In the case of the present embodiment, the pair of opposing ribs 98 is provided on the front side and the rear side of the cap member 50, so that rattling in the attached state of the cap member 50 can be further suppressed.

  As shown in FIG. 11, the accommodation recess 84 is provided with an accommodation groove 100 for accommodating a part of the cap member 50 (side wall portion of a foot recess 122 described later). Specifically, in each accommodation recess 84, the accommodation groove 100 is provided at the front end of the inner side wall (the right side wall 84La of the accommodation recess 84L and the left side wall 84Ra of the accommodation recess 84R). 86 is linked. That is, one end (left end) of the reinforcing portion 86 is connected to the accommodation groove 100 provided in the right side wall 84La in the accommodation recess 84L on the left side, and the other end (right end) of the reinforcement portion 86 is the left side in the accommodation recess 84R on the right It connects with the accommodation groove 100 provided in wall 84Ra.

  As described above, in the case of the present embodiment, the housing recess 100 is provided with the housing groove 100 for housing a part of the cap member 50, and the reinforcing portion 86 is connected to the housing groove 100. It can be improved.

  As shown in FIGS. 5, 7 and 11, the cover member 48 is integrally provided with a support projection 102 projecting downward from the reinforcement 86. The support convex portion 102 is a portion that receives a load from the seat cushion 14 side together with a floor receiving portion 106 of a frame 26 described later in a folded state of the seat 12. Specifically, two support convex portions 102 are provided at intervals in the left-right direction. The two support protrusions 102 are located in the opening 83 in plan view.

  The support convex portion 102 has a shape projecting downward from the cover member 48 as a whole, and in the present embodiment, the side wall 103 having an L-shaped cross section and a flat plate portion 104 connected to the lower end of the side wall 103 Have. The cross-sectional shape of the side wall 103 may be a polygonal shape such as a U-shape (U-shape), an I-shape (H-shape), or a quadrilateral shape.

  Thus, in the cover member 48, since the support convex part 102 is integrally provided from the reinforcement part 86, the rigidity of the support convex part 102 can be improved effectively.

  Next, the mutual fixing structure of the frame 26, the cover member 48 and the cap member 50 will be described.

  As shown in FIGS. 5 and 6, the frame 26 further has a floor receiving portion 106 that protrudes from the bottom side of the seat cushion 14. In the present embodiment, two floor receivers 106 are provided at intervals in the left-right direction. The left and right floor receivers 106 are connected to opposite sides of the left and right foot support members 44, respectively. Accordingly, the floor receiving portion 106 is disposed inside the left and right side feet 42L and 42R.

  As shown in FIG. 14, a positioning hole 109 (first positioning knife portion) is provided in the bottom portion 107 of the floor receiving portion 106. Further, the bottom portion 107 of the floor receiving portion 106 is provided with a fixing hole 110 into which a fastening component (such as a screw) is inserted.

  On the other hand, the bottom plate portion 104 of the support convex portion 102 in the cover member 48 is provided with a positioning pin 111 (first positioning male portion) projecting upward and a positioning hole 112 (second positioning female portion).

  As shown in FIG. 13 and FIG. 14, the portion of the cap member 50 covering the floor receiving portion 106 of the frame 26 is a hollow shape convex portion 114 projecting toward the front side (downward). The bottom portion 115 of the convex portion 114 is provided with a positioning convex portion 116 (second positioning male portion) projecting upward.

  The floor receiving portion 106 of the frame 26, the support convex portion 102 of the cover member 48, and the convex shaped portion 114 of the cap member 50 are configured as described above, and in the assembled state, the cover member 48 receives the floor It is sandwiched between the bottom 107 of the portion 106 and the bottom 115 of the convex portion 114.

  Further, in the assembled state, the positioning pin 111 provided in the cover member 48 is inserted into the positioning hole 109 provided in the floor receiving portion 106, and the positioning convex portion 116 provided in the cap member 50 is the cover member 48. It inserts in the positioning hole 112 provided in. Further, the fastening component is inserted into the fixing hole 110 provided in the bottom portion 107 of the floor receiving portion 106 through the through hole 117 provided in the convex portion 114 of the cap member 50, whereby the convex shape portion 114 is formed. Bottom portion 115 and the bottom portion 107 of the floor receiving portion 106 are mutually fixed.

  As described above, in the present embodiment, the cover member 48 is stably fixed by the cover member 48 being sandwiched between the bottom portion 107 of the floor receiving portion 106 and the cap member 50. Therefore, the mounting rigidity of the cover member 48 (fixing strength of the cover member 48 to the seat cushion 14) can be improved.

  Further, in the case of the present embodiment, since the bottom portion 107 of the floor receiving portion 106 has the positioning hole 109 into which the positioning pin 111 provided in the cover member 48 is inserted, the positioning of the cover member 48 with respect to the floor receiving portion 106 It is easy to do and can improve the assembly workability.

  Furthermore, in the case of this embodiment, since the cover member 48 has the positioning hole 112 into which the positioning convex portion 116 provided on the cap member 50 is inserted, the cap member 50 is positioned relative to the cover member 48 at the time of assembly. As a result, the assembling operation can be improved.

  In the case of this embodiment, since the cap member 50 and the floor receiving portion 106 are fixed at the positioning convex portion 116 of the cap member 50, the cap member 50 and the floor receiving portion 106 are fixed at a high rigidity location. Can.

  In the case of the present embodiment, since the floor receiving portion 106 is provided on the foot support member 44 supporting the foot portion 16 (see FIG. 5), the rigidity of the foot portion 16 and the floor receiving portion 106 is improved and the seat 12 is formed. It can be more stably accommodated in the floor F.

  In particular, in the case of the present embodiment, the floor receiving portion 106 is disposed inside the left and right side feet 42L and 42R, so the floor receiving portion 106 is efficiently disposed. Therefore, the enlargement of the sheet 12 due to the provision of the floor receiving portion 106 can be suppressed.

  In addition, the cap member 50 is fixed to the bottom portion 107 of the floor receiving portion 106. According to this configuration, when the bottom of the seat 12 abuts on the floor F, rattling between the floor receiving portion 106 and the cap member 50 can be suppressed.

  In the case of the present embodiment, as shown in FIG. 5 and FIG. 13, the left and right foot recesses 122 capable of receiving the foot portion 16 (specifically, the side feet 42L and 42R) on the side of the convex portion 114. Are integrally provided. As a result, since the foot recess 122 is provided at a location where the rigidity is high, it is possible to effectively suppress the reduction in the rigidity of the cap member 50 due to the provision of the foot recess 122. Two foot recesses 122 are provided outside the left and right convex portions 114.

  Specifically, the foot recess 122 penetrates the cap member 50 in the top-bottom direction, extends in the front-rear direction, and is formed in a cutout shape that opens rearward. A claw 123 is provided on the outer surface of the side wall 122 a outside the left and right foot concave portions 122. On the other hand, as shown in FIG. 11, an engagement hole 124 is provided on the outer side wall (the left side wall 84Lb of the accommodation recess 84L and the right side wall 84Rb of the accommodation recess 84R) of the accommodation recess 84 of the cover member 48. The claw 123 provided on the cap member 50 engages with the engagement hole 124. Thereby, the attachment rigidity of the cap member 50 with respect to the cover member 48 can be improved.

  Although the seat cover 24 (cover member 48) attached to the bottom surface of the seat cushion 14 is illustrated in the embodiment described above, the seat cover 24 (cover member 48) attached to the back surface of the seat back 18 may also be used. Good. The present invention can also be applied to vehicle seats other than the vehicle seat 10 (seats 12 and 13), for example, seats used on ships, aircraft, and the like.

  Although the present invention has been described above by way of preferred embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the scope of the present invention. Yes.

Claims (20)

A seat cushion (14) having a frame (26);
A foot (16) foldable towards the bottom of the seat cushion (14);
A cover member (48) having an opening (83) for passing the foot (16) and at least partially covering the bottom surface of the seat cushion (14);
A cap member (50) covering the opening (83);
The frame (26) has a floor receiving portion (106) projecting from the bottom surface side of the seat cushion (14),
The cover member (48) is sandwiched between the bottom portion (107) of the floor receiving portion (106) and the cap member (50).
A sheet (12) characterized in that. In the seat (12) according to claim 1,
The cover member (48) has a first positioning male portion (111),
The bottom portion (107) of the floor receiving portion (106) has a first positioning female portion (109) into which the first positioning male portion (111) is inserted.
A sheet (12) characterized in that. In the seat (12) according to claim 1,
The cap member (50) has a second positioning male portion (116),
The cover member (48) has a second positioning female portion (112) into which the second positioning male portion (116) is inserted,
A sheet (12) characterized in that. In the seat (12) according to claim 3,
In the second positioning male portion (116) of the cap member (50), the cap member (50) and the floor receiving portion (106) are fixed.
A sheet (12) characterized in that. In the seat (12) according to claim 1,
The portion of the cap member (50) covering the floor receiving portion (106) is a convex portion (114) projecting toward the front side,
A foot recess (122) capable of receiving the foot (16) is integrally provided on the side of the convex portion (114).
A sheet (12) characterized in that. In the seat (12) according to claim 1,
It further comprises a cover member attachment structure for attaching the cover member (48) to the seat body (14, 18) including the seat cushion (14),
The cover member mounting structure is
An engaged portion (36) provided on the sheet body (14, 18);
An engagement portion (56) provided on the cover member (48) and engaged with the engaged portion (36);
A movement restricting mechanism (70) for restricting the movement of the cover member (48) relative to the sheet main body (14, 18) in the assembled state of the cover member (48);
A sheet (12) characterized in that. In the seat (12) according to claim 6,
The movement restricting mechanism (70) has a restricting projection (72) which protrudes from the cover member (48) to the sheet main body (14, 18) side,
In the assembled state of the cover member (48), the restriction protrusion (72) abuts on the engaged portion (36).
A sheet (12) characterized in that. In the seat (12) according to claim 7,
The engaged portion (36) is a rod-like member,
The restriction protrusion (72) is provided with a biasing portion (76) that presses the rod-like member against the engagement portion (56).
A sheet (12) characterized in that. In the seat (12) according to claim 7,
The engagement portion (56) and the restriction projection (72) are integrally formed with the cover member (48),
The engagement portion (56) and the restriction protrusion (72) are disposed adjacent to each other via a gap.
A sheet (12) characterized in that. In the sheet (12) according to claim 9,
The engaging portion (56) has plate-like portions (60) facing each other,
The restriction protrusion (72) has a length at least straddling between root portions of the plate-like portion (60).
A sheet (12) characterized in that. In the seat (12) according to claim 6,
The movement restricting mechanism (70) has a restricting convex portion (74) which protrudes from the cover member (48) to the sheet main body (14, 18) side,
In the assembled state of the cover member (48), the restriction convex portion (74) abuts on the sheet body (14, 18),
A sheet (12) characterized in that. In the seat (12) according to claim 11,
The sheet body (14, 18) has a frame (26) provided with a plate member (78),
In the assembled state of the cover member (48), the restriction convex portion (74) abuts on the plate member (78).
A sheet (12) characterized in that. In the seat (12) according to claim 6,
The cover member (48) is provided with a plurality of the engagement portions (56),
The movement restricting mechanism (70) is disposed outside the plurality of engaging portions (56).
A sheet (12) characterized in that. In the seat (12) according to claim 1,
The foot portion (16) has left and right side feet (42L, 42R),
The cover member (48) includes left and right receiving recesses (84L, 84R) capable of receiving the left and right side feet (42L, 42R), and reinforcing portions connecting the left and right receiving recesses (84L, 84R). (86) is provided,
A sheet (12) characterized in that. In the seat (12) according to claim 14,
The reinforcing portion (86) is a U-shaped convex portion (87) which protrudes toward the bottom of the seat cushion (14).
A sheet (12) characterized in that. In the seat (12) according to claim 14,
The cover member (48) is provided with an attaching portion (92) to which the cap member (50) is attached, along with the reinforcing portion (86).
A sheet (12) characterized in that. In the seat (12) according to claim 16,
The mounting portion (92) is a hole (94),
A protrusion (96) is provided on the left and right sides of the hole (94) and closer to the reinforcing portion (86) than the hole (94).
A sheet (12) characterized in that. In the sheet (12) according to claim 17,
In the portion of the cap member (50) facing the mounting portion (92) of the cover member (48), ribs (98) extending in the left-right direction and facing each other are provided.
The protrusions (96) are disposed between the ribs (98),
A sheet (12) characterized in that. In the seat (12) according to claim 14,
The housing recess (84L, 84R) is provided with a housing groove (100) for housing a part of the cap member (50),
The reinforcing portion (86) is coupled to the accommodation groove (100).
A sheet (12) characterized in that. In the seat (12) according to claim 14,
The cover member (48) is integrally provided with a support projection (102) projecting downward from the reinforcement (86).
A sheet (12) characterized in that.

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