JP2019147041A - Seat - Google Patents

Abstract

To provide a seat capable of suppressing slip-out of a duct from a connection member.SOLUTION: A seat includes a seat pad having a ventilation path, a blower module, and a duct 50 for allowing the blower module to communicate with the ventilation path of the seat pad. In the seat, at least one end is arranged in the ventilation path, and the other end further includes a cylindrical connection member 70 connected to the duct 50. The connection member 70 has a reinforcement part 75 provided so as to connect and bridge a plurality of spots on the inner surface.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a seat including a seat pad having an air passage, an air blower, and a duct that communicates the air blower with the air passage.

  2. Description of the Related Art Conventionally, a seat pad having an air passage, a blower, and a duct that communicates the blower and the air passage are provided, and air from the blower is ejected from the surface of the seat cushion or the seat back through the duct and the air passage. A vehicular seat configured as described above is known (Patent Document 1). In this technique, the duct is connected to the seat pad by inserting an end portion of the duct into a cylindrical insert member embedded in the seat pad.

JP 2005-287532 A

  By the way, in the conventional structure, there existed a possibility that a duct might come off from the connection member for connecting a duct like an insert member, and a seat pad.

Then, an object of this invention is to provide the sheet | seat which can suppress that a duct remove | deviates from a connection member.
Another object is to make the connecting member compact.
Moreover, it aims at making a duct a simple structure.
Moreover, it aims at suppressing the damage to a duct.
Moreover, it aims at suppressing an air leak.
Moreover, it aims at suppressing that a connection member deform | transforms.
Moreover, it aims at ensuring the passage of air favorably.
Moreover, it aims at attaching a connection member easily.

A sheet for achieving the above-described object is a sheet including a seat pad having a ventilation path, a blower, and a duct that allows the blower to communicate with the ventilation path, and at least one end portion of the sheet is provided. A tubular connecting member disposed in the air passage and having the other end connected to the duct is provided, and the connecting member has a reinforcing portion provided so as to bridge a plurality of locations on the inner surface. It is characterized by that.
In the above-described sheet, the reinforcing portion may have a flat plate shape.
In the above-described sheet, the reinforcing portion may have a shape extending along the axial direction of the cylinder of the connection member.
In the above-described sheet, the connecting member has a longitudinal cross-sectional shape cut by a plane orthogonal to the axial direction of the cylinder, and the reinforcing portion is provided so as to connect the longitudinal inner surfaces of the connecting member. It can be set as the structure which has.
In the above-described sheet, the reinforcing portion may be configured such that the length in the direction of connecting the long inner surfaces of the connecting members is longer than the length of the connecting member in the axial direction of the cylinder.
In the above-described sheet, the reinforcing portion may be configured such that the length of the connecting member in the axial direction of the cylinder is shorter than the length of the connecting member in the axial direction of the cylinder.
In the above-described sheet, the connecting member has a configuration in which a cross-sectional shape cut by a plane orthogonal to the axial direction of the cylinder is a longitudinal shape, and the reinforcing portion is provided in a central portion in the longitudinal direction of the cross-sectional shape; can do.
The above-described seat can be configured to include a frame that constitutes a skeleton, and a skin material that covers the frame together with the seat pad.
The above-described seat may include a seat cushion and a seat back, and the frame may be a frame of the seat cushion.
The seat includes a seat pad having an air passage, a blower, and a duct that communicates the blower with the air passage, and at least one end portion is disposed in the air passage. And the other end portion includes a cylindrical connection member connected to the duct, the connection member having a first hook portion hooked on the inner surface of the air passage at the one end portion, and the other end portion. It can be set as the structure which has the 2nd hook part hooked on the said duct at an edge part.

  According to such a configuration, since the connecting member has the reinforcing portion, the connecting member can be prevented from being deformed, and thereby the duct can be prevented from coming off from the connecting member. Moreover, since the connection member has the second hooking portion that is hooked on the duct, it is possible to suppress the duct from coming off the connection member due to the hook between the connection member and the duct.

  In the sheet described above, the other end of the connecting member is inserted inside the duct, and the second hooking portion is hooked on the inner surface of the duct.

  According to this, compared with the structure by which a duct is inserted inside a cylindrical connection member, a connection member can be made compact.

  In the above-described sheet, the inner surface of the duct may be configured to have a recess in which the second hook portion is hooked.

  According to this, it is possible to suppress the duct from coming off the connecting member with a simple configuration.

  In the sheet described above, the duct may have a bellows part that can be expanded and contracted, and the concave part may be formed in the bellows part.

  According to this, since a vibration, vibration, etc. can be absorbed by the bellows part which can be expanded and contracted, it can suppress more that a duct falls out from a connection member.

  In the sheet described above, the concave portion may be a valley portion of the bellows portion on the inner surface of the duct.

  According to this, a duct can be made into a simple structure compared with the structure which provides the recessed part which a 2nd hook part hooks separately from the trough part in the internal peripheral surface of a bellows part.

  In the above-described sheet, the second hooking portion may include a first flange that protrudes from an outer peripheral surface of the connection member and extends along a wall that forms the valley portion.

  According to this, since the edge of the first flange is suppressed from biting the wall forming the valley, damage to the duct can be suppressed. Moreover, since the first flange and the inner surface of the duct can be brought into contact over the entire circumference of the first flange, the adhesion between the connecting member and the duct is increased, and air leakage can be suppressed.

  In the sheet described above, the duct has a configuration in which a peak portion formed on the back side of the valley portion of the bellows portion is disposed in the air passage and is in contact with an inner surface of the air passage. it can.

  According to this, since the movement of the duct can be regulated by the seat pad, it is possible to further suppress the duct from coming off the connecting member.

  In the above-described sheet, the connection member may have a reinforcing portion provided so as to be bridged by connecting a plurality of locations on the inner surface.

  According to this, it can suppress that a cylindrical connection member deform | transforms so that it may collapse. In addition, since the deformation of the connecting member can be suppressed, it is possible to further suppress the duct from coming out of the connecting member and to ensure a good air passage.

  In the above-described sheet, the connecting member has a configuration in which a cross-sectional shape cut by a plane orthogonal to the axial direction of the cylinder is a longitudinal shape, and the reinforcing portion is provided in a central portion in the longitudinal direction of the cross-sectional shape; can do.

  According to this, while being able to suppress that a cylindrical connecting member deform | transforms so that it may be crushed, while being able to suppress that a duct pulls out from a connecting member more, the passage of air is ensured better. can do.

  In the sheet described above, the first hook portion includes a second flange protruding from the outer peripheral surface of the connection member, and a stepped portion on which the second flange is hooked is formed on the inner surface of the air passage. It can be.

  According to this, the connection member can be easily attached to the seat pad simply by inserting the connection member into the air passage and hooking the second flange on the stepped portion. Moreover, since the 2nd flange and the inner surface of a ventilation path can be contacted over the perimeter of a 2nd flange, the adhesiveness of a connection member and a seat pad increases, and an air leak can be suppressed.

  According to the present invention, it is possible to suppress the duct from coming off the connecting member.

  Moreover, a connection member can be reduced in size by setting it as the structure which inserts a connection member inside a duct.

  Moreover, it can suppress that a duct pulls out from a connection member by simple structure by forming the recessed part which a 2nd hook part hooks in the inner surface of a duct.

  Moreover, it can suppress that a duct falls out from a connection member by forming a recessed part in the bellows part of a duct.

  Moreover, a duct can be made into a simple structure by setting it as the structure which a recessed part is a trough part of the bellows part in the inner surface of a duct.

  Moreover, while a 2nd hook part contains a 1st flange, while being able to suppress the damage to a duct, an air leak can be suppressed.

  Moreover, it can suppress more that a duct pulls out from a connection member by setting it as the structure which the peak part formed in the back side of the trough part of a bellows part contacts the inner surface of a ventilation path.

  Moreover, it can suppress that a connection member deform | transforms because a connection member has a reinforcement part. In addition, it is possible to further suppress the duct from coming out of the connection member, and it is possible to ensure a good air passage.

  Moreover, it can suppress more that a connection member deform | transforms by providing a reinforcement part in the center part in the longitudinal direction of the cross-sectional shape of a connection member. In addition, it is possible to further suppress the duct from coming out of the connection member, and it is possible to ensure a better air passage.

  In addition, the first hooking portion includes the second flange, and the stepped portion on which the second flange is hooked is formed on the inner surface of the air passage, whereby the connecting member can be easily attached and air leakage can be suppressed. it can.

It is a perspective view of the vehicle seat as a seat concerning an embodiment. It is sectional drawing of a seat cushion. It is a perspective view of a pan frame, a bracket, and a blower. It is the perspective view (a) of a bracket, and the figure (b) which looked at the bracket from the bottom. The figure (a) which shows the attachment position of the bracket with respect to the pan frame of the vehicle seat used at the driver's seat, the figure (b) which shows the position of the shaft portion of the tapping screw in the second attachment hole, and the third attachment hole It is a figure (c) which shows the position of the axial part of the tapping screw in. It is explanatory drawing (a), (b) of the fixing method of a pan frame and a bracket. It is a perspective view of a duct and a connection member. It is an expanded sectional view of a seat cushion pad, a duct, and a connecting member viewed from the front. The figure (a) which shows the attachment position of the bracket with respect to the pan frame of the vehicle seat used in the passenger seat, the figure (b) which shows the position of the shaft portion of the tapping screw in the second attachment hole, and the third attachment hole It is a figure (c) which shows the position of the axial part of the tapping screw in.

Hereinafter, an embodiment of the invention will be described with reference to the accompanying drawings. In this specification, front and rear, left and right, and top and bottom are based on front and rear, left and right, and top and bottom as viewed from the person sitting on the seat.
As shown in FIG. 1, the seat of this embodiment is comprised as the vehicle seat S mounted in a motor vehicle, and is provided with the seat cushion S1, the seat back S2, and the headrest S3.

  As shown in FIG. 2, the seat cushion S <b> 1 includes a seat cushion frame 10 that constitutes a skeleton of the seat cushion S <b> 1, a seat cushion pad 20 as a seat pad, and a skin material 30. The seat cushion pad 20 and the skin material 30 are covered.

  The seat cushion pad 20 has an air passage 21. The ventilation path 21 includes a first ventilation path 21A, a second ventilation path 21B, and a plurality of third ventilation paths 21C. The first air passage 21A extends from the second air passage 21B toward the lower side (the side opposite to the occupant side sitting on the vehicle seat S), and is a space below the second air passage 21B and the seat cushion pad 20. Are provided to communicate with each other. The third ventilation path 21C extends from the second ventilation path 21B toward the upper side (occupant side), and is provided so as to communicate the second ventilation path 21B and the space above the seat cushion pad 20. .

  The vehicle seat S further includes a blower 40 and a duct 50, and the air blown from the blower 40 passes through the duct 50 and the air passage 21 as shown by arrows in FIG. It is comprised so that it may blow off toward a passenger | crew from the upper surface of the cushion pad 20. As shown in FIG. The skin material 30 may be formed from a material having air permeability, or may be formed with a hole for allowing air to pass to a position corresponding to the third air passage 21C. .

  The seat cushion frame 10 includes left and right side frames (not shown) that are spaced apart from each other and a pan frame 12 that connects the left and right side frames. The pan frame 12 is a plate-like frame formed by processing a metal plate into a sheet metal, and is disposed at the front portion of the seat cushion S1.

  As shown in FIGS. 2 and 3, the blower 40 is a sirocco fan as an example, and includes a housing 41, an impeller 42, and a motor (not shown) for rotating the impeller 42. The casing 41 has a diameter from the casing main body 44 in which the impeller 42 and the motor are accommodated, a cylindrical blowing part 45 extending rearward from the left end of the casing main body 44, and a substantially circular casing main body 44. And a plate-like mounting portion 46 extending outward in the direction. A suction port 40 </ b> A for sucking air is formed on the upper surface of the housing body 44, and a blower outlet 40 </ b> B for blowing air is formed at the rear end of the blowout part 45. In addition, the attachment portion 46 includes a first attachment portion 46A, a second attachment portion 46B, and a third attachment portion 46C. The first attachment portion 46A is provided so as to extend diagonally right forward from the housing body 44, and the second attachment portion 46B is provided so as to extend substantially rearward from the housing body 44. . Further, the third attachment portion 46C is provided so as to extend obliquely left frontward from the housing body 44. Each of the mounting portions 46A to 46C is formed with a through hole 46H through which the tapping screw 92 is inserted.

The blower 40 is attached to the pan frame 12 via a bracket 60.
As shown in FIGS. 4A and 4B, the bracket 60 is made of a resin such as polypropylene, and has a base wall 61 and a side wall 62 extending downward from the peripheral edge of the base wall 61. doing. The bracket 60 includes a through hole 63, a hollow convex portion 64, three projecting portions 66, three attachment holes 67, and a locking claw 68.

The through hole 63 is a circular hole penetrating vertically, and is formed at a position of the base wall 61 corresponding to the suction port 40A of the blower 40 (see also FIG. 2).
The convex portion 64 is formed so as to protrude upward from a position of the base wall 61 on the front side of the through hole 63.

  The protrusion 66 is a cylindrical portion that protrudes downward from the base wall 61 where the blower 40 is disposed, and includes a first protrusion 66A, a second protrusion 66B, and a third protrusion 66C. Including. 66 A of 1st protrusion parts are provided in the position corresponding to the 1st attaching part 46A (refer FIG. 3) of the air blower 40, and 2nd protrusion part 66B is provided in the position corresponding to the 2nd attaching part 46B. ing. Further, the third protrusion 66C is provided at a position corresponding to the third attachment portion 46C. More specifically, the first protrusion 66A and the third protrusion 66C are provided with a recess 64A formed on the back side of the protrusion 64 interposed therebetween. Specifically, the first protrusion 66A is provided on the right side of the recess 64A, and the third protrusion 66C is provided on the left side of the recess 64A. Further, the second projecting portion 66 </ b> B is provided on the rear side of the through hole 63. Each of the protrusions 66A to 66C is formed with a screw hole 66H into which a tapping screw 92 (see FIG. 3) is screwed. The screw hole 66H is a hole in which a screw groove is cut when the tapping screw 92 is screwed in, but may be a hole in which a screw groove is formed in advance.

  The mounting hole 67 is a hole penetrating vertically, and includes a first mounting hole 67A, a second mounting hole 67B, and a third mounting hole 67C. 67 A of 1st attachment holes are circular holes, and are provided in the center vicinity in the left-right direction of the convex part 64 formed between protrusion part 66A, 66C. The second mounting hole 67 </ b> B is an oblong hole that is long on the left and right, and is provided on the right side of the rear end portion of the base wall 61. The third mounting hole 67C is provided on the left side of the rear end portion of the base wall 61, and is arranged to line up with the second mounting hole 67B in the left-right direction. The third mounting hole 67C includes a substantially circular first hole 67P, second hole 67Q, and third hole 67R. The first hole 67P is formed at substantially the same position as the second mounting hole 67B in the front-rear direction. In addition, the second hole 67Q is formed to be connected to the first hole 67P diagonally to the right of the first hole 67P, and the third hole 67R is diagonally to the left of the first hole 67P. It is formed so as to be connected to the first hole 67P.

  The locking claw 68 is provided on the left end of the convex portion 64, in other words, on the left side of the first mounting hole 67A. The locking claw 68 is formed in a substantially L shape in a side view so as to extend upward from the convex portion 64 and have a tip protruding rearward.

  As shown in FIG. 5A, the pan frame 12 has a plurality of mounting holes 15 for mounting a wire harness (not shown) connected to an electrical component such as the blower 40, a bracket 60, and the like to the pan frame 12. (15A to 15V) are formed. The attachment holes 15 </ b> A to 15 </ b> V are holes that penetrate vertically, and are formed to have substantially the same size. The mounting holes 15 </ b> A to 15 </ b> I are formed so as to be arranged side by side in the vicinity of the center of the pan frame 12 in the front-rear direction. Further, the mounting holes 15J to 15V are formed so as to be arranged side by side at the rear end portion of the pan frame 12. Further, the mounting holes 15A, 15E, 15I, 15J, 15L to 15O, 15Q to 15T, and 15V are formed in a substantially rectangular shape that is long in the front and rear, and the mounting holes 15B to 15D, 15F to 15H, 15K, 15P, and 15U. Is formed in a substantially rectangular shape that is long to the left and right.

  As shown in FIGS. 6A and 6B, the bracket 60 has a screw grommet 80 engaged with a corresponding mounting hole 15 of the pan frame 12 and a tapping screw 91 in the mounting hole 67 of the bracket 60. It is attached to the pan frame 12 by being screwed into the screw grommet 80. Moreover, although illustration is abbreviate | omitted, after the wire harness connected to electrical components, such as the air blower 40, hold | maintains the said wire harness to a harness clip, this harness clip is engaged with the corresponding attachment hole 15, for example. Is attached to the pan frame 12.

  As shown in FIGS. 2 and 7, the duct 50 is a tubular member that allows the air blower 40 and the air passage 21 formed in the seat cushion pad 20 to communicate with each other, and is formed of an olefin elastomer (TPO) or the like. Yes. The duct 50 includes a first pipe part 51 extending in the front-rear direction and a second pipe part 52 bent from the rear end of the first pipe part 51 and extending upward.

  The second pipe part 52 has a bellows part 53. As shown in FIG. 8, the bellows portion 53 is a portion in which peaks 53 </ b> A and valleys 53 </ b> B are alternately formed when viewed from the outside, and has a configuration that is flexible and can be expanded and contracted. Moreover, the recessed part 54 in which the 1st flange 72 of the connection member 70 mentioned later is hooked in the inner surface of the 2nd pipe part 52 is formed. The concave portion 54 is formed on the inner surface of the bellows portion 53. Specifically, the concave portion 54 is one of the plurality of valley portions 53C of the bellows portion 53 on the inner surface of the duct 50, specifically, the uppermost valley portion 53C.

As shown in FIG. 2, in the duct 50, the front end portion of the first pipe portion 51 is connected to the blowing portion 45 of the blower 40, and the upper end portion of the second pipe portion 52 is connected to the seat cushion pad 20 via the connection member 70. It is connected to the.
As shown in FIGS. 7 and 8, the connection member 70 is a cylindrical member that connects the duct 50 and the air passage 21 formed in the seat cushion pad 20. Specifically, the connection member 70 has a cylindrical shape in which a cross-sectional shape cut by a plane PL orthogonal to the axial direction of the cylinder (direction in which the axis line AL extends) is a long shape, specifically, a long oval shape on the left and right. It is a member.

  The connection member 70 has a second flange 71 as a first hook portion at a first end portion 70A as one end portion, and a second end portion 70B as a second hook portion as a second hook portion. One flange 72 is provided.

  As shown in FIG. 8, the second flange 71 is a portion that is hooked on the inner surface of the ventilation path 21, and is provided so as to protrude outward from the outer peripheral surface of the first end portion 70 </ b> A of the connection member 70. On the inner surface of the air passage 21 of the seat cushion pad 20, a stepped portion 22 on which the second flange 71 is caught is formed. Specifically, the air passage 21 (first air passage 21A) has an opening 23 connected to the outer surface (lower surface 20B) of the seat cushion pad 20 and a first diameter-expanded portion 24 adjacent to the opening 23. The size of the first enlarged diameter portion 24 as viewed from the axial direction of the connecting member 70 is larger than the size of the opening 23. The stepped portion 22 is a stepped portion formed between the opening 23 and the first enlarged diameter portion 24.

  The size of the second flange 71 as viewed from the axial direction of the connecting member 70 is larger than the size of the opening 23. In the present embodiment, the first air passage 21 </ b> A further includes a second enlarged diameter portion 25 adjacent to the first enlarged diameter portion 24, and the second enlarged diameter as viewed from the axial direction of the connecting member 70. Since the size of the portion 25 is larger than the size of the first enlarged diameter portion 24, a step shape (stepped portion 26) is also formed between the first enlarged diameter portion 24 and the second enlarged diameter portion 25. Is formed. The second flange 71 may be configured to be hooked on the stepped portion 26 by increasing the size of the connecting member 70 viewed from the axial direction.

  The first flange 72 is a portion that is caught by a recess 54 formed on the inner surface of the duct 50, and is provided so as to protrude outward from the outer peripheral surface of the second end portion 70 </ b> B of the connection member 70. Specifically, the first flange 72 is formed in a funnel shape that extends so as to be inclined away from the second flange 71 toward the distal end from the proximal end of the first flange 72. Accordingly, the first flange 72 is provided so as to extend substantially along the wall 55 that forms the uppermost valley portion 53 </ b> C (concave portion 54) of the bellows portion 53.

  The entire connection member 70 including the first end portion 70 </ b> A is disposed in the air passage 21, and the second end portion 70 </ b> B is connected to the duct 50. Specifically, the connection member 70 is connected to the duct 50 in a state where the second end portion 70 </ b> B is inserted inside the duct 50. The upper end of the duct 50 is disposed in the ventilation path 21 together with the connection member 70. Thus, in the duct 50, the uppermost peak portion 53 </ b> A formed on the back side of the concave portion 54 (53 </ b> C) of the bellows portion 53 is disposed in the ventilation path 21. And the duct 50 is contacting in the state which the top part of 53 A of uppermost ridges bite into the inner surface (seat cushion pad 20) of the ventilation path 21. FIG.

  Moreover, as shown in FIGS. 7 and 8, the connection member 70 has a reinforcing portion 75 inside the cylinder. Specifically, the reinforcing portion 75 is a wall-like portion that is provided inside the cylindrical connecting member 70 and extends in the short direction (substantially front-rear direction) of the oval cross-sectional shape of the connecting member 70. The reinforcing portion 75 is provided at a central portion in the longitudinal direction (left-right direction) of the cross-sectional shape of the connection member 70 so as to bridge a plurality of locations on the inner surface of the connection member 70, specifically, by connecting two locations substantially in the front-rear direction. It has been. Further, the reinforcing portion 75 is provided closer to the first end portion 70A than to the second end portion 70B, in other words, closer to the first end portion 70A side.

Here, an example of attachment of the air blower 40 to the pan frame 12 will be described.
As shown in FIG. 3, when attaching the blower 40 to the pan frame 12, first, the bracket 60 is attached to the pan frame 12. Specifically, the screw grommets 80 are engaged and attached to the attachment holes 15C, 15L, and 15Q of the pan frame 12, respectively. Then, the latching claw 68 (see FIG. 4A) of the bracket 60 is hooked and temporarily fixed to the mounting hole 15D formed on the left side of the mounting hole 15C, and one tapping screw 91 is attached to the mounting hole of the bracket 60. The screw grommet 80 that is passed through 67A and engaged with the mounting hole 15C is screwed. Further, another tapping screw 91 is screwed into the screw grommet 80 that is passed through the mounting holes 67B and 67C of the bracket 60 and engaged with the mounting holes 15L and 15Q.

  On the other hand, the blowing device 40 and the duct 50 are connected to the blowing device 40 by fitting the front end portion of the duct 50 (see FIG. 7) to the blowing portion 45. Further, as shown in FIG. 8, the second end portion 70 </ b> B of the connection member 70 is inserted inside the upper end portion of the duct 50, the first flange 72 and the concave portion 54 are engaged, and the connection member 70 is attached to the duct 50. .

  And while attaching the air blower 40 to the bracket 60, the duct 50 and the seat cushion pad 20 are connected via the connection member 70. FIG. Specifically, as shown in FIG. 3, tapping screws 92 are passed through through holes 46 </ b> H formed in the mounting portions 46 </ b> A to 46 </ b> C of the blower device 40, and screw holes formed in the protruding portions 66 </ b> A to 66 </ b> C of the bracket 60. It is screwed into 66H. Further, as shown in FIG. 8, the connecting member 70 is inserted into the air passage 21 of the seat cushion pad 20, and the second flange 71 is engaged with the stepped portion 22 and hooked.

  Accordingly, the blower 40 is attached to the pan frame 12 via the bracket 60, and the duct 50 is connected to the seat cushion pad 20 via the connection member 70, so that the blower 40 and the air passage 21 are communicated with each other by the duct 50. Will be.

  In the present embodiment, the pan frame 12, the blower 40, the bracket 60, and the connection member 70 are common parts for the driver's seat and the passenger seat of the automobile. S has been described. More specifically, as shown in FIG. 5 (a), in the vehicle seat S used in the driver's seat, the opening 23 of the air passage 21 is the center of the vehicle seat S in the left-right direction (see the dashed line C). The bracket 60 is attached at a position shifted to the right side of the center of the vehicle seat S in the left-right direction.

  Specifically, in the vehicle seat S used in the driver's seat, when the bracket 60 is attached to the pan frame 12, the attachment holes 15C, 15L, and 15Q are used as described above. Specifically, in the bracket 60, the first tapping screw 91 is screwed into the screw grommet 80 engaged with the mounting hole 15C through the first mounting hole 67A, and the second tapping screw 91 is mounted through the second mounting hole 67B. It is attached to the pan frame 12 by screwing into the screw grommet 80 engaged with 15L and screwing the third tapping screw 91 into the screw grommet 80 engaged with the attachment hole 15Q through the third attachment hole 67C. .

  At this time, as shown in FIG. 5B, in the second mounting hole 67B, the shaft portion of the tapping screw 91 is located near the center in the left-right direction, and as shown in FIG. In the mounting hole 67C, the shaft portion of the tapping screw 91 is fitted in the first hole portion 67P. Since the second mounting hole 67B is a long hole that is long to the left and right, even if the position of the mounting hole 15L is slightly shifted to the left and right, the positional shift can be absorbed.

  On the other hand, as shown in FIG. 9A, in the vehicle seat S used in the passenger seat, the opening 23 of the air passage 21 is shifted to the left side from the center of the vehicle seat S (see the chain line C). It is formed in the position. Therefore, in the vehicle seat S used in the passenger seat, the bracket 60 is attached at a position shifted to the left side from the center of the vehicle seat S in the left-right direction.

  Specifically, in the vehicle seat S used in the passenger seat, when the bracket 60 is attached to the pan frame 12, the attachment holes 15F, 15P, and 15U are used. Specifically, in the bracket 60, the first tapping screw 91 is screwed into the screw grommet 80 engaged with the mounting hole 15F through the first mounting hole 67A, and the second tapping screw 91 is mounted through the second mounting hole 67B. It is attached to the pan frame 12 by screwing into the screw grommet 80 engaged with 15P, and screwing the third tapping screw 91 into the screw grommet 80 engaged with the attachment hole 15U through the third attachment hole 67C. .

  At this time, as shown in FIG. 9B, in the second mounting hole 67B, the shaft portion of the tapping screw 91 is located near the left end, and as shown in FIG. 9C, the third mounting hole In 67C, the shaft portion of the tapping screw 91 is fitted in the second hole portion 67Q. The mounting hole 15U is formed at a position slightly shifted to the front side with respect to the mounting hole 15P, but the third mounting hole 67C has the second hole 67Q provided obliquely in front of the first hole 67P. Therefore, the positional deviation can be absorbed.

  The duct 50 is slightly different in shape of the first pipe portion 51 (see FIG. 7) between the one used in the driver seat and the one used in the passenger seat. Are substantially the same.

  According to the present embodiment described above, since the connection member 70 has the first flange 72 as the second hooking portion that is hooked on the duct 50, the first flange 72 of the connection member 70 and the recess 54 of the duct 50 are provided. It is possible to prevent the duct 50 from coming off from the connecting member 70 due to the catching of. Moreover, since the connection member 70 has the 2nd flange 71 as a 1st hook part caught on the inner surface of the ventilation path 21, the step shape formed in the 2nd flange 71 of the connection member 70 and the inner surface of the ventilation path 21 is used. It is possible to suppress the connection member 70 from coming off the seat cushion pad 20 together with the duct 50 by being caught with the portion 22.

  Further, since the second end portion 70B of the connecting member 70 is inserted inside the duct 50 and the first flange 72 as the second hooking portion is hooked on the inner surface of the duct 50, the duct is formed inside the cylindrical connecting member. Compared with the configuration in which 50 is inserted and the second hook is hooked on the outer surface of the duct 50, the connecting member 70 can be made compact.

  Moreover, since the recessed part 54 in which the 1st flange 72 is hooked is formed in the inner surface of the duct 50, it can suppress that the duct 50 comes off from the connection member 70 with a simple structure.

  Moreover, since the duct 50 has the bellows part 53 which can be expanded and contracted, and the recessed part 54 is formed in the bellows part 53, since the bellows part 53 which can be expanded and contracted can absorb a vibration, a vibration, etc., the duct 50 It is possible to further prevent the connection member 70 from coming off.

  Moreover, since the recessed part 54 is formed of the trough part 53C of the bellows part 53, compared with the structure which provides the recessed part on which the 1st flange 72 is hooked on the inner peripheral surface of the bellows part 53 separately from the trough part 53C. Can be configured in a simple manner.

  In addition, since the first flange 72 extends along the wall 55 that forms the valley portion 53 </ b> C (concave portion 54) of the bellows portion 53 on the inner surface of the duct 50, the edge of the first flange 72 may bite the wall 55. It is suppressed. Thereby, damage to the duct 50 can be suppressed. In addition, since the second hooking portion is in a flange shape, the first flange 72 and the inner surface of the duct 50 can be brought into contact over the entire circumference of the first flange 72, so that the adhesion between the connecting member 70 and the duct 50 is improved. Increases and air leakage can be suppressed.

  Further, the duct 50 is configured such that the uppermost peak portion 53 </ b> A of the bellows portion 53 is disposed in the air passage 21 and is in contact with the inner surface of the air passage 21, so that the movement of the duct 50 is restricted by the seat cushion pad 20. be able to. Thereby, it can suppress more that the duct 50 comes off from the connection member 70.

  Moreover, since the connection member 70 has the reinforcement part 75, it can suppress that the cylindrical connection member 70 deform | transforms so that it may collapse. In addition, since the deformation of the connection member 70 can be suppressed, the duct 50 can be further prevented from coming out of the connection member 70, and a good air passage in the seat cushion S1 can be secured.

  Moreover, since the reinforcement part 75 is provided in the center part in the longitudinal direction of the elliptical cross-sectional shape of the connection member 70, it can suppress more that it deform | transforms so that the cylindrical connection member 70 may be crushed. As a result, the duct 50 can be further prevented from coming off from the connection member 70, and the air passage in the seat cushion S1 can be better secured.

  Moreover, since the reinforcement part 75 is provided in the position close | similar to the 1st end part 70A side in which the 2nd flange 71 was formed, it is effective in deform | transforming so that the 1st end part 70A side of the connection member 70 may be crushed. Can be suppressed. As a result, the connection member 70 can be prevented from coming off the seat cushion pad 20.

  Further, since the stepped portion 22 on which the second flange 71 of the connection member 70 is hooked is formed on the inner surface of the ventilation path 21, the connection member 70 is inserted into the ventilation path 21 so that the second flange 71 becomes the stepped portion 22. The connecting member 70 can be easily attached to the seat cushion pad 20 simply by hooking. Moreover, since the 1st hook part is flange shape, since the 2nd flange 71 and the inner surface of the ventilation path 21 can be made to contact over the perimeter of the 2nd flange 71, the connection member 70, the seat cushion pad 20, The adhesion can be increased, and air leakage can be suppressed.

As mentioned above, although one Embodiment of invention was described, this invention is not limited to the said embodiment. About a concrete structure, it can change suitably in the range which does not deviate from the meaning of invention as follows.
For example, in the embodiment described above, the cross-sectional shape of the connection member 70 is an oval shape, but is not limited thereto, and may be an elliptical shape or a substantially rectangular shape. Further, the cross-sectional shape of the connecting member is not limited to the longitudinal shape, and may be, for example, a circular shape or a substantially square shape.

  Moreover, in the said embodiment, although the reinforcement part 75 was provided in I shape which connects two places of the inner surface of the connection member 70 seeing from the axial direction of the connection member 70, it is not limited to this. For example, the reinforcing portion may be provided in a Y shape that connects three locations on the inner surface of the connection member, or may be provided in a cross shape that connects four locations on the inner surface of the connection member. Further, the reinforcing portion may be provided in a honeycomb shape. Moreover, the reinforcement part may be provided with two or more inside the connection member. Further, the connection member may be configured not to include a reinforcing portion.

  Moreover, in the said embodiment, although the whole connection member 70 was arrange | positioned in the ventilation path 21 including the 1st end part 70A as one edge part, it is not limited to this. For example, the connection member may be configured such that only one end portion is disposed in the air passage and the other end portion is outside the air passage (seat pad).

  Moreover, in the said embodiment, although the recessed part 54 where the 1st flange 72 (2nd hook part) of the connection member 70 is hooked was formed by the trough part 53C of the bellows part 53, it is not limited to this, For example, a bellows The part may be a recessed part formed separately from the valley part. Moreover, the recessed part may be formed in parts other than a bellows part. In addition, the structure which is not provided with a bellows part may be sufficient as a duct.

  Moreover, in the said embodiment, although the 1st flange 72 was illustrated as a 2nd hook part, it is not limited to this, For example, a 2nd hook part is a boss-like convex part etc. which protrude from the outer peripheral surface of a connection member. There may be. In this case, the concave portion on the inner surface of the duct that the second hooking portion engages and catches may be a groove-shaped concave portion that extends in the circumferential direction of the inner surface of the duct 50, such as the concave portion 54 of the above embodiment. It may be a hole-like recess corresponding to the boss-like projection. Moreover, in the said embodiment, it was the structure which the 1st flange 72 (convex 2nd hook part) formed in the connection member 70 hooks on the recessed part 54 (concave part) formed in the inner surface of the duct 50. However, it is not limited to this. For example, a configuration in which the concave second hooking portion formed on the connecting member engages with and protrudes from the convex portion formed on the inner surface of the duct may be employed. The same applies to the hook structure between the first hook portion and the inner surface of the air passage.

  Moreover, in the said embodiment, although the connection member 70 was the structure inserted in the inside of the duct 50, it is not limited to this, For example, the structure fitted in the outer side of a duct, in other words, a duct is a cylindrical connection member. The structure inserted inside may be sufficient.

  Moreover, although the sirocco fan was illustrated as the air blower 40 in the said embodiment, it is not limited to this, For example, a propeller fan, a turbo fan, etc. may be sufficient. Moreover, in the said embodiment, although the vehicle seat S was comprised so that air might be blown out by the action | operation of the air blower 40, it is not limited to this, For example, it is comprised so that air may be suck | inhaled by the action | operation of an air blower. May be. Moreover, the air blower may be capable of switching between air blowing and suction, for example, by switching the rotation direction of the blades.

  Moreover, in the said embodiment, although the pad (seat cushion pad 20) of seat cushion S1 was illustrated as a seat pad, it is not limited to this. For example, the seat pad may be a seat back pad. In this case, the air blower may be provided in the seat cushion as in the above embodiment, but is not limited thereto, and may be provided in the seat back. Moreover, you may comprise so that the air ventilated from one ventilation apparatus may be sent to both the ventilation path of a seat cushion pad, and the ventilation path of a seat back pad by the duct which branches. Each of the seat cushion and the seat back may include a pad having an air passage, a blower, and a duct.

  Moreover, in the said embodiment, although the vehicle seat S mounted in a motor vehicle was illustrated as a sheet | seat, it is not limited to this, The vehicle seat mounted in vehicles other than a motor vehicle, for example, a rail vehicle, a ship, an aircraft, etc. It may be. The seat is not limited to a vehicle seat, and may be a seat used at home, for example.

  Moreover, you may implement combining each element demonstrated by above-described embodiment and modification arbitrarily.

DESCRIPTION OF SYMBOLS 20 Seat cushion pad 21 Air flow path 22 Step part 40 Air blower 50 Duct 53 Bellows part 53A Mountain part 53C Valley part 54 Recessed part 55 Wall 70 Connection member 70A 1st edge part 70B 2nd edge part 71 2nd flange 72 1st flange 75 Reinforcement part S Vehicle seat

Claims (9)

A seat pad having a ventilation path, a blower, and a duct for communicating the blower and the ventilation path,
A cylindrical connecting member having at least one end disposed in the air passage and the other end connected to the duct;
The connecting member has a reinforcing portion provided so as to crosslink a plurality of locations on the inner surface.   The sheet according to claim 1, wherein the reinforcing portion has a flat plate shape.   The sheet according to claim 2, wherein the reinforcing portion has a shape extending along an axial direction of a cylinder of the connection member. The connecting member has a longitudinal cross-sectional shape cut by a plane orthogonal to the axial direction of the cylinder,
The sheet according to any one of claims 1 to 3, wherein the reinforcing portion is provided so as to connect the longitudinal inner surfaces of the connecting members.   5. The sheet according to claim 4, wherein the reinforcing portion has a length in a direction in which longitudinal inner surfaces of the connection members are connected to each other longer than a length in an axial direction of a cylinder of the connection member.   The length of the reinforcing member in the axial direction of the cylinder of the connecting member is shorter than the length of the connecting member in the axial direction of the cylinder. Sheet. The connecting member has a longitudinal cross-sectional shape cut by a plane orthogonal to the axial direction of the cylinder,
The sheet according to any one of claims 1 to 6, wherein the reinforcing portion is provided at a central portion in the longitudinal direction of the cross-sectional shape. A frame constituting the skeleton;
The sheet according to any one of claims 1 to 7, further comprising a skin material that covers the frame together with the seat pad. A seat cushion and a seat back;
The seat according to claim 8, wherein the frame is a frame of the seat cushion.

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