JP2021112586A - 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 pad having a ventilation passage, a blower, and a seat including a duct that communicates the blower and the ventilation passage.

Conventionally, a seat pad having a ventilation path, a blower device, and a duct for communicating the blower device and the ventilation path are provided so that air from the blower device is ejected from the surface of the seat cushion or the seat back through the duct and the ventilation path. A vehicle seat configured in is known (Patent Document 1). In this technique, the duct is connected to the seat pad by inserting the end of the duct into the inside of the tubular insert member embedded in the seat pad.

Japanese Unexamined Patent Publication No. 2005-287532

By the way, in the conventional configuration, there is a possibility that the duct may come off from the connecting member for connecting the duct and the seat pad, such as the insert member.

Therefore, an object of the present invention is to provide a sheet capable of suppressing the duct from coming off from the connecting member.
Another object of the present invention is to make the connecting member compact.
Moreover, the purpose is to make the duct a simple structure.
It also aims to suppress damage to the duct.
It also aims to suppress air leakage.
Another object of the present invention is to prevent the connecting member from being deformed.
The purpose is to secure a good air passage.
Another object is to easily attach the connecting member.

The sheet for achieving the above-mentioned object is a sheet including a seat pad having a ventilation path, a blower device, and a duct communicating the blower device and the ventilation path, and at least one end thereof is provided. A tubular connecting member arranged in the air passage and having an other end connected to the duct is provided, and the connecting member has a reinforcing portion provided so as to connect and bridge a plurality of points on the inner surface. It is characterized by that.
In the above-mentioned sheet, the reinforcing portion may have a flat plate shape.
In the above-mentioned sheet, the reinforcing portion may have a shape extending along the axial direction of the cylinder of the connecting member.
In the above-mentioned sheet, the connecting member has a longitudinal cross-sectional shape cut in 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. Can be configured as
In the above-mentioned sheet, the reinforcing portion may be configured such that the length in the direction in which the longitudinal inner surfaces of the connecting members are connected to each other is longer than the length in the axial direction of the cylinder of the connecting member.
In the above-mentioned 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-mentioned sheet, the connecting member has a longitudinal cross-sectional shape cut in a plane orthogonal to the axial direction of the cylinder, and the reinforcing portion is provided at the central portion in the longitudinal direction of the cross-sectional shape. can do.
The seat may be configured to include a frame constituting the skeleton and a skin material to be put on the frame together with the seat pad.
The seat includes a seat cushion and a seat back, and the frame may be configured to be a frame of the seat cushion.
Further, the seat is a sheet including a seat pad having a ventilation path, a blower device, and a duct communicating the blower device and the ventilation path, and at least one end thereof is arranged in the ventilation path. The other end is provided with a tubular connecting member connected to the duct, and the connecting member has a first hooking portion that is hooked on the inner surface of the air passage at the one end. A configuration may be configured in which a second hooking portion that is hooked on the duct is provided at the end portion.

According to such a configuration, since the connecting member has the reinforcing portion, it is possible to suppress the deformation of the connecting member, and thereby it is possible to suppress the duct from coming out of the connecting member. Further, since the connecting member has a second hooking portion that is hooked on the duct, it is possible to prevent the duct from coming off from the connecting member due to the hooking between the connecting member and the duct.

In the above-mentioned sheet, the connecting member may have a configuration in which the other end portion is inserted inside the duct and the second hooking portion is hooked on the inner surface of the duct.

According to this, the connecting member can be made compact as compared with the configuration in which the duct is inserted inside the tubular connecting member.

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

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

In the above-mentioned sheet, the duct has a stretchable bellows portion, and the recess may be formed in the bellows portion.

According to this, since the stretchable bellows portion can absorb shaking and vibration, it is possible to further suppress the duct from coming off from the connecting member.

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

According to this, the duct can be made simpler than the configuration in which the inner peripheral surface of the bellows portion is provided with a recess in which the second hook portion is hooked separately from the valley portion.

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

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

In the above-mentioned sheet, the duct may have a structure in which a mountain portion of the bellows portion formed on the back side of the valley portion is arranged in the ventilation passage and is in contact with the inner surface of the ventilation passage. can.

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

In the above-mentioned sheet, the connecting member may have a reinforcing portion provided so as to connect and bridge a plurality of points on the inner surface.

According to this, it is possible to suppress the tubular connecting member from being deformed so as to be crushed. Further, by suppressing the deformation of the connecting member, it is possible to further suppress the duct from coming out of the connecting member, and it is possible to secure a good air passage.

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

According to this, it is possible to further suppress the deformation of the tubular connecting member so as to be crushed, it is possible to further suppress the duct from coming out of the connecting member, and the air passage is better secured. can do.

In the above-mentioned sheet, the first hooking portion includes a second flange protruding from the outer peripheral surface of the connecting member, and a stepped portion on which the second flange is hooked is formed on the inner surface of the ventilation path. Can be.

According to this, the connecting member can be easily attached to the seat pad only by inserting the connecting member into the ventilation path and hooking the second flange on the stepped portion. Further, since the second flange and the inner surface of the ventilation path can be brought into contact with each other over the entire circumference of the second flange, the adhesion between the connecting member and the seat pad is increased, and air leakage can be suppressed.

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

Further, the connecting member can be made compact by inserting the connecting member inside the duct.

Further, by forming a recess on the inner surface of the duct to which the second hooking portion is hooked, it is possible to prevent the duct from coming off from the connecting member with a simple configuration.

Further, by forming the concave portion in the bellows portion of the duct, it is possible to further prevent the duct from coming off from the connecting member.

Further, the duct can be made a simple structure by forming the concave portion as a valley portion of the bellows portion on the inner surface of the duct.

Further, since the second hook portion includes the first flange, damage to the duct can be suppressed and air leakage can be suppressed.

Further, by forming the mountain portion formed on the back side of the valley portion of the bellows portion in contact with the inner surface of the ventilation path, it is possible to further suppress the duct from coming off from the connecting member.

Further, since the connecting member has the reinforcing portion, it is possible to suppress the connecting member from being deformed. In addition, it is possible to further prevent the duct from coming out of the connecting member, and it is possible to secure a good air passage.

Further, by providing the reinforcing portion at the central portion of the cross-sectional shape of the connecting member in the longitudinal direction, it is possible to further suppress the deformation of the connecting member. In addition, it is possible to further prevent the duct from coming out of the connecting member, and it is possible to secure a better air passage.

Further, by forming a stepped portion in which the first hook portion includes the second flange and the second flange is hooked on the inner surface of the ventilation path, the connecting member can be easily attached and air leakage can be suppressed. can.

It is a perspective view of the vehicle seat as the seat which concerns on 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 a perspective view (a) of a bracket and the view (b) which looked at the bracket from the bottom. A diagram (a) showing the mounting position of the bracket with respect to the pan frame of the vehicle seat used in the driver's seat, a diagram (b) showing the position of the shaft portion of the tapping screw in the second mounting hole, and a third mounting hole. It is a figure (c) which shows the position of the shaft 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 connecting member. It is an enlarged cross-sectional view of a seat cushion pad, a duct, and a connecting member seen from the front. A diagram (a) showing the mounting position of the bracket with respect to the pan frame of the vehicle seat used in the passenger seat, a diagram (b) showing the position of the shaft portion of the tapping screw in the second mounting hole, and a third mounting hole. It is a figure (c) which shows the position of the shaft 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-back, left-right, and up-down are based on front-back, left-right, and up-down as seen from a person sitting on the seat.
As shown in FIG. 1, the seat of the present embodiment is configured as a vehicle seat S mounted on an automobile, and includes a seat cushion S1, a seat back S2, and a headrest S3.

As shown in FIG. 2, the seat cushion S1 includes a seat cushion frame 10 constituting the skeleton of the seat cushion S1, a seat cushion pad 20 as a seat pad, and a skin material 30, and the seat cushion frame 10 The seat cushion pad 20 and the skin material 30 are put on the seat cushion pad 20.

The seat cushion pad 20 has a ventilation path 21. The vent 21 includes a first vent 21A, a second vent 21B, and a plurality of third vents 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 under the second air passage 21B and the seat cushion pad 20. It is provided so as to communicate with. Further, the third ventilation passage 21C is provided so as to extend from the second ventilation passage 21B toward the upper side (occupant side) and communicate the second ventilation passage 21B with the space above the seat cushion pad 20. ..

The vehicle seat S further includes a blower 40 and a duct 50, and as shown by an arrow in FIG. 2, the air blown from the blower 40 passes through the duct 50 and the air passage 21 and is seated. It is configured to be blown out from the upper surface of the cushion pad 20 toward the occupant. The skin material 30 may be made of a breathable material, or may have a hole for passing air at a position corresponding to the third ventilation passage 21C. ..

The seat cushion frame 10 includes left and right side frames (not shown) arranged apart from each other on the left and right, and a pan frame 12 connecting the left and right side frames. The pan frame 12 is a plate-shaped frame formed by sheet metal processing of a metal plate, and is arranged at the front portion of the seat cushion S1.

As shown in FIGS. 2 and 3, the blower 40 is, for example, a sirocco fan, which includes a housing 41, an impeller 42, and a motor (not shown) for rotating the impeller 42. The housing 41 has a diameter from the housing body 44 in which the impeller 42 and the motor are housed, the tubular blowout portion 45 extending rearward from the left end of the housing body 44, and the substantially circular housing body 44. It has a plate-shaped mounting portion 46 that extends outward in the direction. A suction port 40A for sucking air is formed on the upper surface of the housing body 44, and an outlet 40B for blowing air is formed at the rear end of the blowout portion 45. Further, the mounting portion 46 includes a first mounting portion 46A, a second mounting portion 46B, and a third mounting portion 46C. The first mounting portion 46A is provided so as to extend diagonally forward to the right from the housing body 44, and the second mounting portion 46B is provided so as to extend substantially rearward from the housing body 44. .. Further, the third mounting portion 46C is provided so as to extend diagonally forward to the left from the housing body 44. Through holes 46H through which tapping screws 92 are inserted are formed in the mounting portions 46A to 46C, respectively.

The blower 40 is attached to the pan frame 12 via the 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. is doing. Further, the bracket 60 has a through hole 63, a hollow convex portion 64, three protruding portions 66, three mounting holes 67, and a locking claw 68.

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

The protrusion 66 is a cylindrical portion that protrudes downward from the base wall 61 on which the blower 40 is arranged, and includes a first protrusion 66A, a second protrusion 66B, and a third protrusion 66C. include. The first protruding portion 66A is provided at a position corresponding to the first mounting portion 46A (see FIG. 3) of the blower device 40, and the second protruding portion 66B is provided at a position corresponding to the second mounting portion 46B. ing. Further, the third protruding portion 66C is provided at a position corresponding to the third mounting portion 46C. More specifically, the first protruding portion 66A and the third protruding portion 66C are provided with the concave portion 64A formed on the back side of the convex portion 64 sandwiched between them. 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 protruding portion 66B is provided on the rear side of the through hole 63. Screw holes 66H into which tapping screws 92 (see FIG. 3) are screwed are formed in the protrusions 66A to 66C, respectively. The screw hole 66H is a hole in which a screw groove is cut when the tapping screw 92 is screwed in, but it may be a hole in which a screw groove is formed in advance.

The mounting hole 67 is a hole that penetrates vertically and includes a first mounting hole 67A, a second mounting hole 67B, and a third mounting hole 67C. The first mounting hole 67A is a circular hole, and is provided near the center of the convex portion 64 formed between the protruding portions 66A and 66C in the left-right direction. The second mounting hole 67B is an oval 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. Further, the third mounting hole 67C is provided on the left side of the rear end portion of the base wall 61, and is arranged so as to be aligned with the second mounting hole 67B in the left-right direction. The third mounting hole 67C is composed of a substantially circular first hole portion 67P, a second hole portion 67Q, and a third hole portion 67R. The first hole portion 67P is formed at substantially the same position as the second mounting hole 67B in the front-rear direction. Further, the second hole portion 67Q is formed so as to be connected to the first hole portion 67P diagonally to the right of the first hole portion 67P, and the third hole portion 67R is formed diagonally to the left of the first hole portion 67P. It is formed so as to be connected to the first hole portion 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 side view so as to extend upward from the convex portion 64 and project the tip 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 electrical components such as a blower 40, a bracket 60, and the like to the pan frame 12. (15A to 15V) is formed. The mounting holes 15A to 15V are holes that penetrate vertically and are formed to have substantially the same size. The mounting holes 15A to 15I are formed so as to be arranged side by side near the center in the front-rear direction of the pan frame 12. 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, 15V are formed in a substantially rectangular shape long in the front-rear direction, and the mounting holes 15B to 15D, 15F to 15H, 15K, 15P, 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 engages the screw grommet 80 with the corresponding mounting hole 15 of the pan frame 12, and then inserts the tapping screw 91 into the mounting hole 67 of the bracket 60. It is attached to the pan frame 12 by being screwed into the screw grommet 80 through the thread. Although not shown, the wire harness connected to the electrical component such as the blower 40 is, for example, held by the harness clip and then engaged with the corresponding mounting hole 15. By doing so, it is attached to the pan frame 12.

As shown in FIGS. 2 and 7, the duct 50 is a tubular member that communicates the blower 40 and the air passage 21 formed in the seat cushion pad 20, and is formed of an olefin elastomer (TPO) or the like. There is. The duct 50 has a first pipe portion 51 extending in the front-rear direction and a second pipe portion 52 bent from the rear end of the first pipe portion 51 and extending upward.

The second tube portion 52 has a bellows portion 53. As shown in FIG. 8, the bellows portion 53 is a portion in which peak portions 53A and valley portions 53B are alternately formed when viewed from the outside, and has a flexible and expandable structure. Further, a recess 54 on which the first flange 72 of the connecting member 70, which will be described later, is hooked is formed on the inner surface of the second pipe portion 52. The recess 54 is formed on the inner surface of the bellows portion 53. Specifically, the recess 54 is one of a plurality of valleys 53C of the bellows 53 on the inner surface of the duct 50, specifically, the uppermost valley 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 device 40, and the upper end portion of the second pipe portion 52 is connected to the seat cushion pad 20 via the connecting member 70. It is connected to the.
As shown in FIGS. 7 and 8, the connecting member 70 is a tubular member that connects the duct 50 and the ventilation passage 21 formed in the seat cushion pad 20. Specifically, the connecting member 70 has a tubular shape in which the cross-sectional shape cut by the plane PL orthogonal to the axial direction of the cylinder (the direction in which the axial line AL extends) is a longitudinal shape, specifically, an oval shape long to the left and right. It is a member.

The connecting member 70 has a second flange 71 as a first hooking portion on a first end portion 70A as one end portion, and a second hooking portion 70B as a second hooking portion on the other end portion. It has one flange 72.

As shown in FIG. 8, the second flange 71 is a portion that is hooked on the inner surface of the ventilation passage 21, and is provided so as to project outward from the outer peripheral surface of the first end portion 70A of the connecting member 70. A stepped portion 22 on which the second flange 71 is hooked is formed on the inner surface of the ventilation path 21 of the seat cushion pad 20. Specifically, the ventilation passage 21 (first ventilation 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 diameter-expanded 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 seen from the axial direction of the connecting member 70 is larger than the size of the opening 23. Further, in the present embodiment, the first air passage 21A further has a second diameter-expanded portion 25 adjacent to the first diameter-expanded portion 24, and has a second diameter-expanded portion as seen from the axial direction of the connecting member 70. Since the size of the portion 25 is larger than the size of the first diameter-expanded portion 24, a stepped shape (stepped portion 26) is also formed between the first diameter-expanded portion 24 and the second diameter-expanded 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 when viewed from the axial direction.

The first flange 72 is a portion that is hooked on the recess 54 formed on the inner surface of the duct 50, and is provided so as to project outward from the outer peripheral surface of the second end portion 70B of the connecting member 70. Specifically, the first flange 72 is formed in a funnel shape that is inclined and extends away from the second flange 71 toward the tip from the base end of the first flange 72. As a result, the first flange 72 is provided so as to extend substantially along the wall 55 forming the uppermost valley portion 53C (recessed portion 54) of the bellows portion 53.

The entire connecting member 70 including the first end portion 70A is arranged in the ventilation passage 21, and the second end portion 70B is connected to the duct 50. Specifically, the connecting member 70 is connected to the duct 50 with the second end 70B inserted inside the duct 50. The upper end of the duct 50 is arranged in the air passage 21 together with the connecting member 70. As a result, in the duct 50, the uppermost mountain portion 53A formed on the back side of the recess 54 (53C) of the bellows portion 53 is arranged in the ventilation passage 21. The duct 50 is in contact with the top of the uppermost mountain portion 53A in a state of being bitten into the inner surface (seat cushion pad 20) of the ventilation path 21.

Further, as shown in FIGS. 7 and 8, the connecting member 70 has a reinforcing portion 75 inside the cylinder. Specifically, the reinforcing portion 75 is a wall-shaped portion provided inside the tubular connecting member 70 and extending in the lateral direction (substantially the front-rear direction) of the oval cross-sectional shape of the connecting member 70. The reinforcing portion 75 is provided at the central portion of the cross-sectional shape of the connecting member 70 in the longitudinal direction (horizontal direction) so as to connect a plurality of locations, specifically, two locations on the inner surface of the connecting member 70 substantially in the front-rear direction for cross-linking. Has been done. Further, the reinforcing portion 75 is provided at a position closer to the first end portion 70A than the second end portion 70B, in other words, closer to the first end portion 70A side.

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

On the other hand, in the blower device 40, the blower device 40 and the duct 50 are connected by fitting the front end portion of the duct 50 (see FIG. 7) into the blowout portion 45. Further, as shown in FIG. 8, the second end portion 70B of the connecting member 70 is inserted inside the upper end portion of the duct 50, the first flange 72 and the recess 54 are engaged with each other, and the connecting member 70 is attached to the duct 50. ..

Then, the blower 40 is attached to the bracket 60, and the duct 50 and the seat cushion pad 20 are connected via the connecting member 70. Specifically, as shown in FIG. 3, the tapping screw 92 is passed through the through hole 46H formed in the mounting portions 46A to 46C of the blower device 40, and the screw hole formed in the protruding portion 66A to 66C of the bracket 60. Screw into 66H. Further, as shown in FIG. 8, the connecting member 70 is inserted into the ventilation passage 21 of the seat cushion pad 20, and the second flange 71 is engaged with the stepped portion 22 and hooked.

As a result, the blower 40 is attached to the pan frame 12 via the bracket 60, the duct 50 is connected to the seat cushion pad 20 via the connecting member 70, and the blower 40 and the ventilation passage 21 communicate with each other through the duct 50. Will be done.

In the present embodiment, the pan frame 12, the blower 40, the bracket 60, and the connecting member 70 are common parts for the driver's seat and the passenger's seat of the automobile, and the above is the vehicle seat used in the driver's seat. S has been described. More specifically, as shown in FIG. 5A, in the vehicle seat S used in the driver's seat, the opening 23 of the ventilation path 21 is the center of the vehicle seat S in the left-right direction (see the alternate long and short dash line C). The bracket 60 is formed at a position shifted to the right side of the center, and 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 screwed into the mounting hole through the second mounting hole 67B. It is attached to the pan frame 12 by being screwed into the screw grommet 80 engaged with 15L and screwing the third tapping screw 91 into the screw grommet 80 engaged with the mounting hole 15Q through the third mounting hole 67C. ..

At this time, as shown in FIG. 5 (b), 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. 5 (c), the third In the mounting hole 67C, the shaft portion of the tapping screw 91 fits into 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 misalignment 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 ventilation path 21 is shifted to the left side of the center of the vehicle seat S (see the alternate long and short dash line C). It is formed in a vertical 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 of 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, 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 screwed into the mounting hole through the second mounting hole 67B. It is attached to the pan frame 12 by being screwed into the screw grommet 80 engaged with the 15P and screwing the third tapping screw 91 into the screw grommet 80 engaged with the mounting hole 15U through the third mounting 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 portion, and as shown in FIG. 9C, the third mounting hole In 67C, the shaft portion of the tapping screw 91 fits into the second hole portion 67Q. The mounting hole 15U is formed at a position slightly offset to the front side with respect to the mounting hole 15P, but the third mounting hole 67C is provided with the second hole portion 67Q diagonally in front of the first hole portion 67P. Therefore, the misalignment can be absorbed.

The shape of the first pipe portion 51 (see FIG. 7) of the duct 50 is slightly different between the one used in the driver's seat and the one used in the passenger seat, but the configuration of the second pipe portion 52 is formed. Is almost the same.

According to the present embodiment described above, since the connecting member 70 has the first flange 72 as the second hooking portion for being hooked on the duct 50, the first flange 72 of the connecting member 70 and the recess 54 of the duct 50 It is possible to prevent the duct 50 from coming off the connecting member 70 due to the catching of the duct 50. Further, since the connecting member 70 has a second flange 71 as a first hooking portion that is hooked on the inner surface of the ventilation passage 21, a stepped shape formed on the second flange 71 of the connecting member 70 and the inner surface of the ventilation passage 21. It is possible to prevent the connecting member 70 from coming off the seat cushion pad 20 together with the duct 50 by being caught by 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 inside the tubular connecting member. The connecting member 70 can be made compact as compared with the configuration in which the 50 is inserted and the second hooking portion is hooked on the outer surface of the duct 50.

Further, since the recess 54 in which the first flange 72 is hooked is formed on the inner surface of the duct 50, it is possible to prevent the duct 50 from coming off from the connecting member 70 with a simple configuration.

Further, since the duct 50 has a bellows portion 53 that can be expanded and contracted, and the recess 54 is formed in the bellows portion 53, the duct 50 can absorb shaking, vibration, and the like by the expandable bellows portion 53. It is possible to further suppress disconnection from the connecting member 70.

Further, since the recess 54 is formed by the valley portion 53C of the bellows portion 53, the duct 50 is compared with a configuration in which a recess for hooking the first flange 72 is provided on the inner peripheral surface of the bellows portion 53 separately from the valley portion 53C. Can be a simple configuration.

Further, since the first flange 72 extends along the wall 55 forming the valley portion 53C (recessed 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. As a result, damage to the duct 50 can be suppressed. Further, since the second hook portion has a flange shape, the first flange 72 and the inner surface of the duct 50 can be brought into contact with each other over the entire circumference of the first flange 72, so that the connection member 70 and the duct 50 are in close contact with each other. Can be increased and air leakage can be suppressed.

Further, in the duct 50, since the uppermost mountain portion 53A of the bellows portion 53 is arranged in the ventilation passage 21 and is in contact with the inner surface of the ventilation passage 21, the movement of the duct 50 is restricted by the seat cushion pad 20. be able to. As a result, it is possible to further prevent the duct 50 from coming off the connecting member 70.

Further, since the connecting member 70 has the reinforcing portion 75, it is possible to prevent the tubular connecting member 70 from being deformed so as to be crushed. Further, by suppressing the deformation of the connecting member 70, it is possible to further suppress the duct 50 from coming out of the connecting member 70, and it is possible to secure a good air passage in the seat cushion S1.

Further, since the reinforcing portion 75 is provided at the central portion of the connecting member 70 in the longitudinal direction of the oval cross-sectional shape, it is possible to further suppress the tubular connecting member 70 from being deformed so as to be crushed. As a result, it is possible to further prevent the duct 50 from coming out of the connecting member 70, and it is possible to better secure the air passage in the seat cushion S1.

Further, since the reinforcing portion 75 is provided at a position closer to the first end portion 70A side on which the second flange 71 is formed, it is effective to deform the connecting member 70 so that the first end portion 70A side is crushed. Can be suppressed. As a result, it is possible to prevent the connecting member 70 from coming off the seat cushion pad 20.

Further, since the stepped portion 22 on which the second flange 71 of the connecting member 70 is hooked is formed on the inner surface of the ventilation passage 21, the connecting member 70 is inserted into the ventilation passage 21 to attach the second flange 71 to the stepped portion 22. The connecting member 70 can be easily attached to the seat cushion pad 20 simply by hooking it. Further, since the first hook portion has a flange shape, the second flange 71 and the inner surface of the air passage 21 can be brought into contact with each other over the entire circumference of the second flange 71, so that the connecting member 70 and the seat cushion pad 20 can be brought into contact with each other. Adhesion is increased and air leakage can be suppressed.

Although one embodiment of the invention has been described above, the present invention is not limited to the above embodiment. The specific configuration can be appropriately changed as described below without departing from the spirit of the invention.
For example, in the above-described embodiment, the cross-sectional shape of the connecting member 70 is oval, but the cross-sectional shape is not limited to this, and may be elliptical or substantially rectangular. 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.

Further, in the above-described embodiment, the reinforcing portion 75 is provided in an I shape connecting two locations on the inner surface of the connecting member 70 when viewed from the axial direction of the connecting member 70, but the present invention is not limited to this. For example, the reinforcing portion may be provided in a Y shape connecting three points on the inner surface of the connecting member, or may be provided in a cross shape connecting four points on the inner surface of the connecting member. Further, the reinforcing portion may be provided in a honeycomb shape. Further, a plurality of reinforcing portions may be provided inside the connecting member. Further, the connecting member may be configured not to have a reinforcing portion.

Further, in the above-described embodiment, the entire connecting member 70 including the first end portion 70A as one end portion is arranged in the ventilation path 21, but the present invention is not limited to this. For example, the connecting member may be configured such that only one end is arranged in the vent and the other end is outside the vent (seat pad).

Further, in the above-described embodiment, the recess 54 on which the first flange 72 (second hooking portion) of the connecting member 70 is hooked is formed by the valley portion 53C of the bellows portion 53, but the present invention is not limited to this, and for example, the bellows The portion may be a recess formed separately from the valley portion. Further, the recess may be formed in a portion other than the bellows portion. The duct may be configured not to have a bellows portion.

Further, in the above embodiment, the first flange 72 is exemplified as the second hooking portion, but the present invention is not limited to this, and the second hooking portion is, for example, a boss-shaped convex portion protruding from the outer peripheral surface of the connecting member. There may be. In this case, the recess on the inner surface of the duct to which the second hooking portion engages and is hooked may be a groove-shaped recess extending in the circumferential direction of the inner surface of the duct 50 such as the recess 54 of the embodiment. It may be a hole-shaped concave portion corresponding to a boss-shaped convex portion. Further, in the above-described embodiment, the first flange 72 (convex second hooking portion) formed on the connecting member 70 is hooked on the recess 54 (concave portion) formed on the inner surface of the duct 50. However, it is not limited to this. For example, the concave second hooking portion formed on the connecting member may be engaged with and hooked on the convex portion formed on the inner surface of the duct. The above is the same for the hooking structure between the first hooking portion and the inner surface of the ventilation path.

Further, in the above-described embodiment, the connecting member 70 is inserted inside the duct 50, but the present invention is not limited to this, and for example, the connecting member 70 is fitted outside the duct, in other words, the duct is a tubular connecting member. It may be configured to be inserted inside the.

Further, in the above-described embodiment, the sirocco fan is exemplified as the blower device 40, but the present invention is not limited to this, and for example, a propeller fan or a turbo fan may be used. Further, in the above embodiment, the vehicle seat S is configured to blow out air by the operation of the blower device 40, but the present invention is not limited to this, and for example, the vehicle seat S is configured to suck air by the operation of the blower device. You may. Further, the blower device may be one that can switch between blowing and suction by switching the rotation direction of the blades, for example.

Further, in the above embodiment, the pad of the seat cushion S1 (seat cushion pad 20) is exemplified as the seat pad, but the present invention is not limited to this. For example, the seat pad may be a pad on the seat back. In this case, the blower may be provided on the seat cushion as in the above embodiment, but the present invention is not limited to this, and the blower device may be provided on the seat back. Further, the air blown from one blower device may be configured to be sent to both the air passage of the seat cushion pad and the air passage of the seat back pad by a branching duct. Further, the seat cushion and the seat back may each include a pad having a ventilation path, a blower, and a duct.

Further, in the above-described embodiment, the vehicle seat S mounted on an automobile is exemplified as a seat, but the present invention is not limited to this, and the vehicle seat mounted on a vehicle other than an automobile, for example, a railroad vehicle, a ship, an aircraft, or the like. It may be. Further, the seat is not limited to a seat for vehicles, and may be a seat used at home, for example.

In addition, each element described in the above-described embodiment and modification may be arbitrarily combined and implemented.

20 Seat cushion pad 21 Ventilation path 22 Stepped part 40 Blower 50 Duct 53 Bellows 53A Mountain 53C Valley 54 Recess 55 Wall 70 Connection member 70A 1st end 70B 2nd end 71 2nd flange 72 1st flange 75 Reinforcement part S Vehicle seat

Claims (1)

A seat including a seat pad having a ventilation path, a blower device, and a duct communicating the blower device and the ventilation path.
At least one end is located in the vent and the other end comprises a tubular connecting member connected to the duct.
The connecting member has a reinforcing portion provided so as to connect and bridge a plurality of locations on the inner surface, a first hooking portion that is hooked on the inner surface of the ventilation path, and a second hooking portion that is hooked on the duct.
The reinforcing portion is provided at a position where 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 and is closer to the end side where the first hooking portion is provided. A sheet characterized by being.

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