JP2019026096A - Vehicular seat - Google Patents

Abstract

To provide a vehicular seat which can protect a connection part of a duct comprising plural parts.SOLUTION: A vehicular seat (a vehicle seat S) comprises: a seat cushion S1 and a seat back S2; a duct D extending across the seat cushion S1 and the seat back S2 so as to connect ventilation passages A1 and A2 formed in the seat cushion S1 and the seat back S2 with an air blower 70; and a cover member (a side frame cover 90) covering a part of the duct D. The duct D includes: a first duct member 110; and a second duct member 120 connected to the first duct member 110. The cover member covers at least a part of a first connection part C1 that is a connection part between the first duct member 110 and the second duct member 120.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle seat including a seat cushion and a seat back.

  Conventionally, a seat cushion and a seat back formed with an air outlet and an air passage, a blower attached to the bottom surface of the seat cushion, and a duct connecting the air blower and the air passage of the seat back, A vehicle seat configured to send conditioned air to an outlet through an air passage or a duct is known (Patent Document 1).

JP 2009-023477 A

  By the way, when the duct is configured by connecting a plurality of parts, if the impact is applied to the connecting portion of the duct, for example, when the foot of an occupant in the rear seat hits the connecting portion, the connecting portion may come off.

Then, an object of this invention is to provide the vehicle seat which can protect the connection part of the duct formed by connecting several components.
Another object of the present invention is to make the cover member compact.
Moreover, an object of this invention is to protect the engaging location of the connection part of a duct.
Moreover, an object of this invention is to visually confirm the engagement state of the engagement location of the connection part of a duct.
Another object of the present invention is to connect a plurality of parts of a duct with a simple configuration.
Another object of the present invention is to make it difficult to remove a plurality of parts of a duct.
Another object of the present invention is to realize a configuration in which air is blown out or sucked in a wide range of seat cushions or seat back seat surfaces.

  The present invention for achieving the above-described object is a vehicle seat including a seat cushion and a seat back, and is disposed across the seat cushion and the seat back. A duct connecting at least one of the air passage and the blower; and a cover member covering a part of the duct; and the duct is connected to the first duct member and the first duct member. It has a 2nd duct member, The said cover member covers at least one part of the 1st connection part which is a connection part of the said 1st duct member and the said 2nd duct member, It is characterized by the above-mentioned.

  According to such a structure, the connection part of the duct formed by connecting a plurality of components by the cover member can be protected.

  In the vehicle seat described above, the first duct member has a first engagement portion and a second engagement portion provided in the first connection portion, and the second duct member is the first engagement. A third engagement portion that engages with the second engagement portion, and a fourth engagement portion that engages with the second engagement portion, wherein the cover member includes the first engagement portion and the third engagement portion. , And the second engagement portion and the fourth engagement portion may not be covered.

  According to this, compared with the case where all the engaging parts are covered with a cover member, the cover member can be made compact.

  The vehicle seat described above includes left and right cushion side frames that constitute left and right frames of the seat cushion, and a rear frame that connects rear portions of the left and right cushion side frames, and the duct includes the rear frame. Extending from the seat cushion toward the seat back through the rear side, and the second engagement portion and the fourth engagement portion are provided on the right side surface or the left side surface of the first connection portion; can do.

  According to this, since it is possible to prevent the rear passenger's foot from hitting the second engaging portion and the fourth engaging portion that are not covered with the cover member from the rear, this is the engaging portion of the connecting portion of the duct. The second engaging portion and the fourth engaging portion can be protected. Moreover, the engagement state of the second engagement portion and the fourth engagement portion can be visually confirmed.

  In the vehicle seat described above, the first connection portion is located at a position closer to the cushion side frame on the right or left than the center of the seat cushion in the left-right direction, and the first engagement portion and the first The three engaging portions may be provided on a side surface of the first connecting portion that is farther from the center of the seat cushion than the second engaging portion and the fourth engaging portion in the left-right direction.

  According to this, compared with the case where the 1st connection part is located in the position near the center of the left-right direction of a seat cushion, it can control that the foot of a crew member of a backseat hits back near the 1st connection part itself. Therefore, the 2nd engaging part and the 4th engaging part which are not covered with the cover member can be protected more.

  In the vehicle seat described above, the first engagement portion and the third engagement portion get on and off the rear side of the vehicle seat with respect to the second engagement portion and the fourth engagement portion in the left-right direction. It can be set as the structure provided near the door for.

  According to this, when the occupant gets into the rear side of the vehicle seat, the occupant's feet or the like may hit near the side surface of the first connection portion where the first engagement portion and the third engagement portion are provided. However, since the first engaging portion and the third engaging portion are covered with the cover member, the first engaging portion and the third engaging portion can be effectively protected by the cover member.

  In the vehicle seat described above, the first engaging portion and the second engaging portion are convex portions protruding outward, and the third engaging portion and the fourth engaging portion are the convex portions. It can be set as the structure which is the through-hole which a part engages.

  According to this, the first duct member and the second duct member can be connected with a simple configuration.

  In the vehicle seat described above, the convex portion may include a return portion that extends opposite to a direction in which the first duct member is connected to the second duct member.

  According to this, the first duct member and the second duct member can be made difficult to come off.

  In the vehicle seat described above, the second duct member is connected to a rear end of the first duct member and extends upward, and the duct is disposed on the seat back and connected to an upper end of the second duct member. The cover member may be configured to cover at least a part of a second connection portion that is a connection portion between the second duct member and the third duct member.

  According to this, not only the connection part of a 1st duct member and a 2nd duct member but the connection part of a 2nd duct member and a 3rd duct member can be protected by a cover member.

  The vehicle seat described above includes left and right back side frames constituting left and right frames of the seat back, and the cover member includes a plate-like rear cover that is attached so as to span the left and right back side frames. The rear cover may cover the second connection portion later.

  According to this, the connection part of a 2nd duct member and a 3rd duct member can be effectively protected by a plate-shaped rear cover.

  In the vehicle seat described above, one of the seat cushion and the seat back has a first air passage and a second air passage, and the duct has a first duct portion connected to the first air passage, The second duct portion may be extended from the first duct portion and connected to the second air passage.

  According to this, since the air blower and the plurality of ventilation paths can be connected by the duct, it is possible to realize a configuration for blowing out air or a configuration for sucking air over a wide range of seat cushions and seat backs.

  ADVANTAGE OF THE INVENTION According to this invention, the connection part of the duct formed by connecting several components with a cover member can be protected.

  According to the present invention, the cover member covers the first engagement portion and the third engagement portion and does not cover the second engagement portion and the fourth engagement portion, so that the cover member is compact. Can be

  According to the present invention, the second engagement portion and the fourth engagement portion are protected by providing the second engagement portion and the fourth engagement portion on the right side surface or the left side surface of the first connection portion. Can do. Moreover, the engagement state of the second engagement portion and the fourth engagement portion can be visually confirmed.

  Further, according to the present invention, the second engagement portion and the fourth engagement portion are located at a position closer to the right or left cushion side frame than the center of the seat cushion in the left-right direction. Can be more protected.

  Further, according to the present invention, the first engaging portion and the third engaging portion are provided near the door for getting on and off the rear side of the vehicle seat, so that the first engaging portion and the third engaging portion are provided by the cover member. The engaging portion can be effectively protected.

  Further, according to the present invention, the first engaging portion and the second engaging portion are convex portions, and the third engaging portion and the fourth engaging portion are through holes through which the convex portions are engaged. The first duct member and the second duct member can be connected with a simple configuration.

  Moreover, according to this invention, it can be made hard to remove | deviate from a 1st duct member and a 2nd duct member by setting it as the structure which a convex part has a return part.

  According to the present invention, since the cover member covers the second connection portion, the connection portion between the second duct member and the third duct member can be protected by the cover member.

  Moreover, according to this invention, the rear cover which comprises a cover member is set as the structure which covers a 2nd connection part later, and the connection part of a 2nd duct member and a 3rd duct member is effectively protected by a rear cover. be able to.

  According to the invention, the seat cushion is configured such that one of the seat cushion and the seat back has the first air passage and the second air passage, and the duct has the first duct portion and the second duct portion. In addition, it is possible to realize a configuration in which air is blown out or sucked in a wide range of seating surfaces of the seat back.

It is a figure which shows the vehicle seat as a vehicle seat which concerns on embodiment. It is sectional drawing of the vehicle seat. It is a perspective view of a seat frame. It is a perspective view of a duct. It is sectional drawing (a), (b) of the connection part vicinity of a duct. It is the figure which looked at the cushion frame, the air blower, and the duct from the bottom. It is the figure which looked at the back frame, the duct, and the cover member from the back. It is the perspective view which looked at the duct and the side frame cover from the left-right direction inner side. It is the perspective view which looked at the duct and the side frame cover from the left-right direction outer side. It is sectional drawing of the 1st connection part vicinity of the duct which concerns on a 1st modification. It is the figure which looked at the side frame cover which concerns on a modification from the back. It is the figure which looked at the rear cover which concerns on a modification from the back. It is the figure which looked at the duct which concerns on a 2nd modification from the back. It is the figure which looked at the duct which concerns on a 3rd modification from the back. It is the figure which looked at the duct which concerns on a 4th modification from the back.

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 vehicle seat of the present embodiment is configured as a vehicle seat S mounted on an automobile, and includes a seat cushion S1 and a seat back S2.

  As shown in FIG. 2, the vehicle seat S is configured by covering a seat frame F (see FIG. 3) with a pad P made of urethane foam or the like and skins U1 and U2 made of fabric or leather. .

  The pad P includes a cushion pad P1 constituting the pad of the seat cushion S1 and a back pad P2 constituting the pad of the seat back S2. The cushion pad P1 has a ventilation path A1 formed therein and a plurality of ventilation holes H1 communicating with the ventilation path A1 from the upper surface. Further, the back pad P2 has a ventilation path A2 formed therein and a plurality of ventilation holes H2 communicating with the ventilation path A2 from the front surface.

  The ventilation paths A1 and A2 are connected to the blower 70 by a duct D described later. The air blower 70 is a sirocco fan, and is disposed below the pan frame 12 described later. The blower 70 is attached to the pan frame 12 via a bracket 71. The vehicle seat S is configured to blow the air blown from the blower 70 through the duct D and the air passages A1 and A2 from the air holes H1 and H2 toward the passenger sitting on the seat.

  As shown in FIG. 3, the seat frame F includes a cushion frame F1 constituting a frame of the seat cushion S1 and a back frame F2 constituting a frame of the seat back S2. The seat cushion S1 is configured by covering the cushion frame F1 with the cushion pad P1 and the skin U1, and the seat back S2 is configured by covering the back frame F2 with the back pad P2 and the skin U2 (FIG. 1). reference).

  The cushion frame F1 includes left and right cushion side frames 11, a pan frame 12, a rear pipe 13 as a rear frame, and a front pipe 14 (see FIG. 6). The left and right cushion side frames 11 are members constituting the left and right frames of the seat cushion S1, and are spaced apart in a state of facing in the left-right direction. The cushion side frame 11 is made of a sheet metal and is formed in a long and long shape in the front-rear direction.

  The pan frame 12 is made of sheet metal, and connects the front portions of the left and right cushion side frames 11. As shown in FIG. 6, the rear pipe 13 and the front pipe 14 are made of a metal pipe material, and are spaced apart from each other in the front-rear direction to connect the left and right cushion side frames 11. Specifically, the rear pipe 13 connects the rear portions of the left and right cushion side frames 11, and the front pipe 14 connects the front portions of the left and right cushion side frames 11. The front pipe 14 is disposed below the pan frame 12.

  A support member 30 is disposed between the left and right cushion side frames 11. The support member 30 is a member that receives a load from an occupant sitting on the seat, and includes a plurality of wire members 31 and a plurality of resin members 32 that connect the wire members 31. The wire member 31 is made of a metal wire, and extends back and forth while alternately bending left and right. The wire members 31 are arranged in a state where they are arranged side by side, and are provided in a state of being spanned between the pan frame 12 and the rear pipe 13. The resin member 32 is made of resin, and is formed integrally with the wire member 31 in a state where the entire circumference of a part of the wire member 31 is covered by insert molding.

  As shown in FIG. 3, the back frame F <b> 2 includes left and right sheet metal frames 22, a pipe frame 23, a lower frame 24, and a bridging frame 25. The left and right sheet metal frames 22 are spaced apart in a state of facing in the left-right direction. The sheet metal frame 22 is made of sheet metal and is formed in a long and long shape.

  The pipe frame 23 is made of a metal pipe material, and includes left and right upper side frames 23A that extend substantially vertically and an upper frame 23B that connects upper ends of the upper side frames 23A. The left and right upper side frames 23A are connected to the upper part of the sheet metal frame 22 so that the left and right sheet metal frames 22 and the left and right back side frames 21 constituting the left and right frames of the seat back S2 are formed. Yes. The lower frame 24 is made of sheet metal, and connects the lower portions of the left and right back side frames 21. The bridging frame 25 is made of sheet metal and connects the upper portions of the left and right backside frames 21. The bridging frame 25 has a lower extension portion 25A extending forward at the lower end, and support holes 25B penetrating vertically are formed at the left and right ends of the lower extension portion 25A. .

  A pressure receiving member 50 and a wire member 60 are disposed between the left and right back side frames 21. The pressure receiving member 50 is a plate-like member that receives a load from an occupant sitting on the seat, and is made of resin or the like. The pressure receiving member 50 is disposed so as to face the back of the passenger. The pressure receiving member 50 has an opening 50A for allowing the duct D to pass therethrough. The wire member 60 is a member that couples the pressure receiving member 50 to the back frame F2. The lower end portion of the wire member 60 is fixed to the lower frame 24, and the upper end is inserted into the support hole 25B of the bridging frame 25, thereby being connected to the back frame F2. The pressure receiving member 50 is connected to the back frame F <b> 2 via the wire member 60 by being fastened to the wire member 60 by a binding band (not shown).

  The rear part of the cushion side frame 11 and the lower part of the back side frame 21 are rotatably connected via a reclining mechanism RL. Thus, the vehicle seat S is configured such that the seat back S2 can be rotated back and forth with respect to the seat cushion S1.

  As shown in FIG. 2, the duct D is a member that connects the air passages A1 and A2 formed in the pads P (P1 and P2) of the seat cushion S1 and the seat back S2 and the blower 70. The duct D is formed by connecting a plurality of components. Specifically, as shown in FIG. 4, the duct D includes a first duct member 110, a second duct member 120, a third duct member 130, and a fourth duct member 140.

  The first duct member 110 includes a first pipe part 111 extending substantially front and rear, a second pipe part 112 extending obliquely upward rearward from the rear end of the first pipe part 111, and substantially upward from an upper end of the second pipe part 112. The first connecting pipe portion 113 extends. As for the 1st pipe part 111, the front-end part is connected to the air blower 70 (refer FIG. 2).

  The second duct member 120 is connected to the rear end of the first duct member 110 and is provided to extend substantially upward from the rear end of the first duct member 110. The second duct member 120 includes a second connection pipe part 121, a first bellows part 122 provided on the second connection pipe part 121, and a third connection pipe part provided on the first bellows part 122. 123. The second connecting pipe part 121 is formed in a size such that the first connecting pipe part 113 of the first duct member 110 fits inside. The first bellows portion 122 has flexibility and can be expanded and contracted.

  The third duct member 130 is connected to the upper end of the second duct member 120. The third duct member 130 has a fourth connecting pipe portion 131 that extends substantially vertically and a second connecting pipe portion 131 that extends obliquely upward and leftward from the upper end of the fourth connecting pipe portion 131 (obliquely upward toward the center of the vehicle seat S in the left-right direction). It has a three-pipe part 132, a fourth pipe part 133 that extends substantially upward from the upper end of the third pipe part 132, and a back connection pipe part 134 that extends substantially forward from the upper end of the fourth pipe part 133. The fourth connecting pipe part 131 is formed in a size that fits inside the third connecting pipe part 123 of the second duct member 120. The back connection pipe part 134 is connected to a ventilation path A2 formed in the back pad P2 at the front end (see FIG. 2).

  The fourth duct member 140 is connected to the front portion of the first duct member 110 and is provided so as to extend substantially vertically. The fourth duct member 140 includes a second bellows portion 141, a cushion connection pipe portion 142 provided on the second bellows portion 141, and left and right connection wall portions 143 provided below the second bellows portion 141. have. The second bellows portion 141 has flexibility and can be expanded and contracted. The cushion connection pipe portion 142 is connected to a ventilation path A1 formed in the cushion pad P1 (see FIG. 2). The connection wall portion 143 extends downward from the lower end of the second bellows portion 141 and is provided so as to sandwich the first pipe portion 111 of the first duct member 110 from the left and right.

  As shown in FIG. 5A, the first duct member 110 has a first engagement portion 151 and a second engagement portion 152 provided in the first connection portion C1, and the second duct member 120. Has a third engagement portion 153 and a fourth engagement portion 154 provided in the first connection portion C1. The first connection portion C <b> 1 is a connection portion between the first duct member 110 and the second duct member 120. Specifically, the first connection portion C1 is a portion where the first connection pipe portion 113 of the first duct member 110 and the second connection pipe portion 121 of the second duct member 120 are connected and overlapped.

  The first engaging portion 151 and the second engaging portion 152 are convex portions that protrude outward in the left-right direction from the left and right side surfaces of the first connecting pipe portion 113. The third engaging portion 153 and the fourth engaging portion 154 are substantially rectangular holes penetrating to the left and right to engage with the engaging portions 151 and 152 as convex portions, and the left and right side walls of the second connecting pipe portion 121. Is provided. The third engagement portion 153 engages with the first engagement portion 151, and the fourth engagement portion 154 engages with the second engagement portion 152.

  The third duct member 130 has a fifth engagement portion 161 and a sixth engagement portion 162 provided in the second connection portion C2, and the second duct member 120 is connected to the second connection portion C2. It has the 7th engaging part 163 and the 8th engaging part 164 which were provided. The second connection portion C <b> 2 is a connection portion between the second duct member 120 and the third duct member 130. Specifically, the second connection portion C2 is a portion where the third connection pipe portion 123 of the second duct member 120 and the fourth connection pipe portion 131 of the third duct member 130 are connected and overlapped.

  The fifth engagement portion 161 and the sixth engagement portion 162 are convex portions that protrude outward in the left-right direction from the left and right side surfaces of the fourth connection pipe portion 131. The seventh engaging portion 163 and the eighth engaging portion 164 are substantially rectangular holes penetrating left and right where the engaging portions 161 and 162 are engaged, and are provided on the left and right side walls of the third connecting pipe portion 123. Yes. The seventh engagement portion 163 engages with the fifth engagement portion 161, and the eighth engagement portion 164 engages with the sixth engagement portion 162.

  As shown in FIG. 5B, the first duct member 110 includes a ninth engaging portion 171 and a tenth engaging portion 172 provided in the first pipe portion 111, and the fourth duct. The member 140 has an eleventh engaging portion 173 and a twelfth engaging portion 174 provided on the connection wall portion 143. The ninth engaging portion 171 and the tenth engaging portion 172 are convex portions that protrude outward in the left-right direction from the left and right side surfaces of the first tube portion 111. The eleventh engaging portion 173 and the twelfth engaging portion 174 are substantially rectangular holes penetrating from side to side where the engaging portions 171 and 172 are engaged. The eleventh engaging portion 173 engages with the ninth engaging portion 171, and the twelfth engaging portion 174 engages with the tenth engaging portion 172. The first duct member 110 is provided with a fifth connecting pipe portion 114 that branches from the first pipe portion 111 and extends substantially upward and fits inside the fourth duct member 140.

  The engaging portions 151, 152, 161, 162, 171, 172 have a substantially triangular shape in the cross-sectional view shown in FIG. Specifically, the engaging portions 151, 152, 161, 162, 171, and 172 include contact surfaces 151A, 152A, 161A, 162A, 171A, and 172A, and inclined surfaces 151B, 152B, 161B, 162B, 171B, and 172B. have. The contact surfaces 151A, 152A, 161A, 162A, 171A, and 172A are flat surfaces that are substantially orthogonal to the direction in which the second duct member 120 or the fourth duct member 140 extends (the vertical direction in FIG. 5). In addition, the inclined surfaces 151B, 152B, 161B, 162B, 171B, and 172B are connected to the corresponding connecting pipe portions 113, 131, and 114 from the outer ends in the left-right direction of the contact surfaces 151A, 152A, 161A, 162A, 171A, and 172A. The surface is inclined so as to approach the center in the left-right direction of the duct D toward the tip.

  As shown in FIG. 2, the duct D is disposed across the seat cushion S1 and the seat back S2. Specifically, the duct D is disposed in a state extending from the lower side of the seat cushion S1 to the upper seat back S2 through the rear side of the rear pipe 13. In the duct D, the first duct member 110 and the fourth duct member 140 are mainly disposed in the seat cushion S1, the third duct member 130 is disposed in the seat back S2, and the second duct member 120 is disposed in the seat cushion S1 and the seat. It arrange | positions so that back | bag S2 may be straddled. The first connection portion C <b> 1 is located behind the rear pipe 13, and the second connection portion C <b> 2 is located behind the lower frame 24.

  As shown in FIG. 6, in the duct D, the first duct member 110 is disposed below the support member 30 and to the right of the center (center plane CP) of the seat cushion S1 in the left-right direction. The first duct member 110 has a front end connected to the blower 70 disposed on the lower side of the pan frame 12, the first pipe portion 111 extends substantially rearward, and the second pipe portion 112 extends below the rear pipe 13. The first connecting pipe portion 113 extends to the rear side of the rear pipe 13 through the side.

  As shown in FIG. 7, the duct D is arranged so that the second duct member 120 extends substantially upward and straddles the cushion frame F1 and the back frame F2. The second duct member 120, in other words, the first connection portion C1 and the second connection portion C2 are located at a position closer to the cushion side frame 11 on the right side of the center plane CP in the left-right direction.

  Further, the duct D extends obliquely upward toward the center plane CP while the third pipe portion 132 of the third duct member 130 passes through the rear of the lower frame 24, and the fourth pipe portion 133 substantially extends on the center plane CP. It extends upward. The duct D is connected to an air passage A2 formed in the back pad P2 through the opening 50A of the pressure receiving member 50, with the back connecting pipe portion 134 of the third duct member 130 extending substantially forward. (See FIG. 2).

  As shown in FIG. 5A, the second engagement portion 152 and the fourth engagement portion 154 are provided on the left side surface of the first connection portion C1, and the sixth engagement portion 162 and the eighth engagement portion are provided. The part 164 is provided on the left side surface of the second connection part C2. The tenth engagement portion 172 is provided on the left side surface of the first tube portion 111, and the twelfth engagement portion 174 is provided on the left connection wall portion 143. On the other hand, the first engaging portion 151 and the third engaging portion 153 are provided on the right side surface of the first connecting portion C1, and the fifth engaging portion 161 and the seventh engaging portion 163 are the second connecting portion. It is provided on the right side of C2. The ninth engagement portion 171 is provided on the right side surface of the first tube portion 111, and the eleventh engagement portion 173 is provided on the right connection wall portion 143.

  Here, since the 1st connection part C1 is located in the position near the right cushion side frame 11, the 1st engaging part 151 and the 3rd engaging part 153 are the right and left of the 1st connecting part C1. It is provided on the side surface farther from the center surface CP (see FIG. 7) than the second engagement portion 152 and the fourth engagement portion 154 in the direction. Similarly, the fifth engagement portion 161 and the seventh engagement portion 163 are on the side surfaces of the second connection portion C2 that are farther from the center surface CP than the sixth engagement portion 162 and the eighth engagement portion 164 in the left-right direction. Is provided.

  Further, as shown in FIG. 1, the vehicle seat S is moved to the rear side of the vehicle seat S with the vehicle seat S and the seat back S2 of the vehicle seat S tilted forward on the right side. The door DR which opens and closes the entrance / exit of is arranged. Therefore, as shown in FIG. 1 and FIG. 5A, the first engaging portion 151 and the third engaging portion 153 provided on the right side surface of the first connecting portion C1 It is provided closer to the door DR than the second engaging portion 152 and the fourth engaging portion 154 provided on the left side surface of C1.

As shown in FIG. 7, the vehicle seat S includes a cover member CV. Cover member CV includes a rear cover 80 and a side frame cover 90.
The rear cover 80 is formed in a plate shape that is long to the left and right from resin or the like, and is disposed behind the fourth pipe portion 133 and the back connection pipe portion 134 of the third duct member 130. The rear cover 80 is fixed to the left and right end portions of the rear cover 80 extending to the left and right inner sides of the rear ends of the left and right back side frames 21 by bolt fastening or the like. As a result, the rear cover 80 is attached so as to span the left and right backside frames 21. By providing such a rear cover 80, the rear cover 80 can protect the portion where the duct D and the back pad P2 are connected.

  The side frame cover 90 is a member that covers the rear end portion of the right cushion side frame 11. The side frame cover 90 is made of resin, and includes a side frame cover portion 91 (see FIG. 8), a duct cover portion 92, and a reclining mechanism cover portion 93. As shown in FIG. 8, the side frame cover portion 91 is a portion that covers the inner side in the left-right direction of the rear end portion of the right cushion side frame 11.

  The duct cover portion 92 is a portion that covers a part of the duct D behind the cushion frame F1. Specifically, the duct cover portion 92 is disposed behind the rear pipe 13 and covers a part of the second pipe portion 112, the first connection portion C1, and the first bellows portion 122. More specifically, as shown in FIG. 9, the duct cover portion 92 includes a first side cover portion 92A that extends rearward from the rear end of the side frame cover portion 91, and a left and right portion from the rear end of the first side cover portion 92A. And a rear cover portion 92B extending inward in the direction. The first side cover portion 92A covers the second pipe portion 112, the first connection portion C1, and the first bellows portion 122 from the right. Further, the rear cover portion 92B has an arcuate cross-sectional shape that protrudes obliquely downward in the rear, and extends so as to be positioned forward as it goes downward. The second cover portion 112, the first connection portion C1, and the first cover portion 92B One bellows portion 122 is covered later.

  In the duct cover portion 92, the first side cover portion 92A covers the right side surface of the first connection portion C1, and the rear cover portion 92B covers the rear side surface of the first connection portion C1. On the other hand, the duct cover portion 92 does not cover the left side surface of the first connection portion C1. Thereby, the duct cover portion 92 covers the first engagement portion 151 and the third engagement portion 153 provided on the right side surface of the first connection portion C1, and as shown in FIG. The second engaging portion 152 and the fourth engaging portion 154 provided on the left side surface are not covered.

  As shown in FIG. 9, the reclining mechanism cover portion 93 is a portion that covers the reclining mechanism RL, and is formed in a substantially cup shape in which the inner side and the lower side in the left-right direction are opened. The reclining mechanism cover part 93 is formed so as to extend from the side frame cover part 91 along the circumferential surface of the reclining mechanism RL, and the reclining mechanism 93A covers the rear side, upper side, and front side of the reclining mechanism RL, and the reclining mechanism. And a second side cover portion 93B that covers the outer side of the RL in the left-right direction.

  According to the embodiment described above, the side frame cover 90 that constitutes the cover member CV covers the first connection portion C1 that is the connection portion between the first duct member 110 and the second duct member 120. 90 can protect the connecting portion (first connecting portion C1) of the duct D formed by connecting a plurality of components.

  Further, since the side frame cover 90 covers the first engagement portion 151 and the third engagement portion 153 and does not cover the second engagement portion 152 and the fourth engagement portion 154, all the engagements are performed by the cover member. The side frame cover 90 can be made compact compared to the case of covering the part.

  Further, since the second engagement portion 152 and the fourth engagement portion 154 are provided on the left side surface of the first connection portion C1, the second engagement portion 152 and the fourth engagement that are not covered with the side frame cover 90 are provided. It is possible to prevent the foot of the passenger in the rear seat from hitting the joint portion 154 from behind. Thereby, the 2nd engaging part 152 and the 4th engaging part 154 which are the engaging locations of the connection part of the duct D can be protected. Further, the second engagement portion 152 and the fourth engagement portion 154 are not the front side surface or the rear side surface covered with the side frame cover 90 of the first connection portion C1, but the left side surface that is not covered with the side frame cover 90. The engagement state of the second engagement part 152 and the fourth engagement part 154 can be visually confirmed.

  In addition, since the first connection portion C1 is located at the position closer to the cushion side frame 11 on the right side than the center plane CP, the first connection portion C1 is compared to the case where the first connection portion C1 is located near the center plane CP. Thus, it is possible to prevent the foot of the passenger in the back seat from hitting the vicinity of the first connection portion C1. Thereby, the 2nd engaging part 152 and the 4th engaging part 154 which are not covered with the side frame cover 90 can be protected more. Further, the engagement portions 161 to 164 that are not covered by the side frame cover 90 can be suppressed by the fact that the foot of the passenger in the rear seat hits the second duct member 120 from the rear in the vicinity of the first connection portion C1, in other words. Can also be well protected.

  Further, the first engaging portion 151 and the third engaging portion 153 are provided near the door DR for getting on and off the rear side of the vehicle seat S relative to the second engaging portion 152 and the fourth engaging portion 154. Therefore, when the occupant gets into the rear side of the vehicle seat S, the occupant's feet or the like are located near the side surface of the first connection portion C1 where the first engagement portion 151 and the third engagement portion 153 are provided. However, since the first engaging portion 151 and the third engaging portion 153 are covered with the side frame cover 90, the first engaging portion 151 and the third engaging portion are covered by the side frame cover 90. 153 can be effectively protected.

  In addition, since the first engaging portion 151 and the second engaging portion 152 are convex portions, and the third engaging portion 153 and the fourth engaging portion 154 are holes in which the convex portions are engaged, the first duct The member 110 and the second duct member 120 can be connected with a simple configuration. The same applies to the connection between the second duct member 120 and the third duct member 130 and the connection between the first duct member 110 and the fourth duct member 140.

  When the occupant sits on the seat cushion S1 and the cushion pad P1 and the support member 30 are bent downward by the weight, the position of the first duct member 110 is lowered, and the second duct is connected to the first duct member 110. In this case, the contact surfaces 151A and 153A of the engaging portions 151 and 153 are caught on the edges of the engaging portions 152 and 154. The member 110 can be prevented from coming off from the second duct member 120.

  Further, when the seat back S2 is rotated forward with respect to the seat cushion S1, the third duct member 130 is rotated together with the seat back S2, so that the third duct member 130 is detached from the second duct member 120. In this case, the contact surfaces 161A and 163A of the engaging portions 161 and 163 are caught on the edges of the engaging portions 162 and 164, so that the third duct member 130 is It is possible to suppress detachment from the two duct member 120.

  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. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals, description thereof is omitted as appropriate, and differences from the above-described embodiment will be described in detail.

  For example, in the modification shown in FIG. 10, the engaging portions 151 and 152 as convex portions are in the direction in which the first duct member 110 is connected to the second duct member 120, specifically in the direction from bottom to top. It has return portions 151C and 152C extending in the opposite direction. Specifically, the return portions 151C and 152C are arranged on the left and right sides of the first connecting pipe portion 113 in the direction opposite to the direction in which the first duct member 110 is connected to the second duct member 120 (the direction from top to bottom). It extends diagonally downward on the outer side in the left-right direction so as to move away from the side surface of the. According to such a configuration, the return portions 151C and 152C are hooked on the edges of the engaging portions 153 and 154, so that the first duct member 110 and the second duct member 120 can be made difficult to come off. The same configuration can be adopted for the engaging portions 161, 162, 171, and 172.

  Further, in the modification shown in FIG. 11, the duct cover portion 92 of the side frame cover 90 constituting the cover member CV is longer in the vertical direction than the duct cover portion 92 of the above embodiment, and the second connection Covers part C2. Specifically, the duct cover portion 92 shown in FIG. 11 covers the right side surface and the rear side surface of the second connection portion C2. According to such a configuration, the cover member CV can protect not only the first connection portion C1 but also the second connection portion C2.

  In the above, the duct cover portion 92 is configured to cover only a part of the first connection portion C1 and the second connection portion C2 (the right side surface and the rear side surface), but is not limited thereto. For example, the duct cover part (cover member) may be configured to cover the entire first connection part C1 and second connection part C2. In other words, the cover member may be configured to cover all of the first engagement portion 151, the second engagement portion 152, the third engagement portion 153, and the fourth engagement portion 154.

  In the modification shown in FIG. 12, the second cover C <b> 2 is covered not by the side frame cover 90 but by the rear cover 80. Specifically, the rear cover 80 constituting the cover member CV has a lower portion that extends longer than the rear cover 80 of the above-described embodiment, and covers the second connection portion C2 from the rear. According to such a structure, the 2nd connection part C2 can be effectively protected by the plate-shaped rear cover 80. FIG. Although illustration is omitted, the rear cover may be provided so as to cover not only the second connection portion C2 but also the first connection portion C1.

  Further, in the modification shown in FIG. 13, the seat back S2 (back pad P2) includes a first air passage A21 formed in a lower portion, and the first air passage A21 above the first air passage A21 and independent of the first air passage A21. And a second air passage A22 that is formed (not connected to the first air passage A21). The duct D includes a third duct member 130 serving as a first duct portion connected to the first air passage A21, and a second duct portion branching out from the third duct member 130 and connected to the second air passage A22. As a fifth duct member 180.

  The third duct member 130 further includes a branch pipe part 135 that extends substantially upward from the upper end of the fourth connection pipe part 131. The front end of the first back connection pipe part 134 is connected to the first air passage A21 formed in the lower part of the back pad P2.

  The fifth duct member 180 extends substantially upward from the upper end of the fifth pipe part 181, the fifth pipe part 181 extending substantially vertically, the sixth pipe part 182 extending obliquely upward to the left from the upper end of the fifth pipe part 181, and the sixth pipe part 182. It has a seventh pipe part 183 and a second back connection pipe part 184 extending substantially forward from the upper end of the seventh pipe part 183. The fifth pipe part 181 is sized so that the branch pipe part 135 of the third duct member 130 fits inside, and the lower end is connected to the branch pipe part 135 of the third duct member 130. The second back connection pipe portion 184 is connected to the second air passage A22 formed on the first air passage A21 with the front end portion of the back pad P2.

  According to such a configuration, the air blower 70 and the plurality of ventilation paths A21, A22 can be connected by the duct D, so that a configuration in which air is blown over a wide range of the seating surface of the seat back S2 can be realized.

  The configuration as shown in FIG. 13 may be applied to the seat cushion S1 together with the seat back S2 or instead of the seat back S2. That is, the seat cushion S1 has a first ventilation path and a second ventilation path. For example, the duct D is branched at the lower side of the seat cushion S1, and is individually connected to the first ventilation path and the second ventilation path. You may do it. According to this, the structure which blows off air in the wide range of the seat surface of seat cushion S1 is realizable.

  Further, the duct D may have a configuration having a symmetrical shape with respect to the configuration described in the embodiment. In this case, the first connection portion C1 and the second connection portion C2 can be configured to be located at a position closer to the cushion side frame 11 on the left side than the center (center plane CP) of the seat cushion S1 in the left-right direction. The engaging portions 151, 153, 161, 163 and the like are provided on the left side surface of the first connecting portion C1, and the engaging portions 152, 154, 162, 164 and the like are provided on the right side surface of the first connecting portion C1. It can be set as the structure provided.

  Moreover, in the said embodiment, although the connection parts C1 and C2 of the duct D were located in the position close | similar to the cushion side frame 11 in the left-right direction, it is not limited to this. For example, as shown in FIGS. 14 and 15, the connecting portions C3 and C4 of the duct D are closer to the center of the seat cushion S1 in the left-right direction or closer to the center of the seat cushion S1 than the cushion side frame 11 in the left-right direction. It may be located at a position (on the center plane CP). In the configuration in which the connection portions C3 and C4 are located on the center plane CP, the connection portions C3 and C4 can be covered with the rear cover 80, for example. Further, as shown in FIG. 14, the duct D branches from the first duct portion 191 connected to the first air passage A21 and the first duct portion 191 even when the connection portion C3 is located on the center plane CP. And a second duct part 192 connected to the second air passage A22.

  Moreover, in the said embodiment, although 1st ventilation path A21 and 2nd ventilation path A22 were formed so that it might rank up and down, it is not limited to this. For example, as shown in FIG. 15, the first air passage A23 and the second air passage A24 may be formed so as to be lined up on the left and right. In this case, for example, a portion of the duct D located behind the back pad (not shown) extends from the first duct portion 193 connected to the first air passage A23 and the first duct portion 193 when viewed from behind. The second duct portion 194 connected to the second air passage A24 can be formed in a substantially Y shape.

  Moreover, in the said embodiment, the 1st engaging part 151 and the 2nd engaging part 152 are convex parts of the shape which protruded outside, and the 3rd engaging part 153 and the 4th engaging part 154 are engaging with a convex part. Although it was the hole to match, it is not limited to this. For example, the first engaging portion and the second engaging portion may be convex portions protruding inward. Further, the third engagement portion and the fourth engagement portion may be convex portions, and the first engagement portion and the second engagement portion may be holes. Further, the hole may be a hole with a bottom (concave portion) instead of a through hole. Further, the first engaging portion and the second engaging portion may have different configurations, for example, one may be a convex portion and the other may be a hole. The same applies to the third engaging portion and the fourth engaging portion. The same can be said for the other engaging portions (161 to 164, 171 to 174). Further, the duct may have a configuration in which the engaging portion is not provided in the connecting portion.

  Moreover, although the sirocco fan was illustrated as the air blower 70 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 from vent hole H1, H2, it is not limited to this, For example, even if comprised so that air may be sucked in from a vent hole Good. For example, when the configuration for sucking air from the vent hole is applied in the form shown in FIG. 13, a configuration for sucking air in a wide range of seating surfaces of the seat back and the seat cushion can be realized.

  Further, the blower device may be capable of switching between blowing and suction by switching the rotation direction of the impeller, for example. Moreover, in the said embodiment, although the vehicle seat S was provided with the air blower 70, the structure which does not provide the air blower may be sufficient as the vehicle seat itself. In other words, the air blower may be provided on the vehicle body of the automobile on which the vehicle seat is mounted. In this case, the vehicle seat can be configured such that the duct is connected to, for example, an air outlet or suction port provided in the vehicle body.

  Moreover, in the said embodiment, although the ventilation path connected with an air blower by the duct D was formed in both a seat cushion and a seat back, it is not limited to this, Only one of a seat cushion and a seat back The structure formed in this may be sufficient.

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

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

DESCRIPTION OF SYMBOLS 11 Cushion side frame 13 Rear pipe 21 Back side frame 70 Blower 80 Rear cover 90 Side frame cover 110 1st duct member 120 2nd duct member 130 3rd duct member 151 1st engaging part 152 2nd engaging part 153 3rd engagement Joint portion 154 Fourth engagement portion A1 Ventilation path A2 Ventilation path C1 First connection portion C2 Second connection portion CV Cover member D Duct DR Door S Vehicle seat S1 Seat cushion S2 Seat back

Claims (10)

A vehicle seat comprising a seat cushion and a seat back,
A duct that is disposed across the seat cushion and the seat back, and connects the air passage and the blower formed in at least one of the seat cushion and the seat back;
A cover member covering a part of the duct,
The duct has a first duct member and a second duct member connected to the first duct member,
The vehicle seat according to claim 1, wherein the cover member covers at least a part of a first connection portion that is a connection portion between the first duct member and the second duct member. The first duct member has a first engagement portion and a second engagement portion provided in the first connection portion,
The second duct member has a third engagement portion that engages with the first engagement portion, and a fourth engagement portion that engages with the second engagement portion,
2. The vehicle according to claim 1, wherein the cover member covers the first engagement portion and the third engagement portion and does not cover the second engagement portion and the fourth engagement portion. Sheet. Left and right cushion side frames constituting left and right frames of the seat cushion; and
A rear frame that connects the rear portions of the left and right cushion side frames, and
The duct extends from the seat cushion toward the seat back through the rear side of the rear frame,
The vehicle seat according to claim 2, wherein the second engagement portion and the fourth engagement portion are provided on a right side surface or a left side surface of the first connection portion. The first connection portion is located at a position closer to the cushion side frame on the right or left than the center of the seat cushion in the left-right direction,
The first engagement portion and the third engagement portion are provided on a side surface of the first connection portion that is farther from the center of the seat cushion than the second engagement portion and the fourth engagement portion in the left-right direction. The vehicle seat according to claim 3, wherein the vehicle seat is provided.   The first engagement portion and the third engagement portion are provided near a door for getting on and off the vehicle seat behind the second engagement portion and the fourth engagement portion in the left-right direction. The vehicle seat according to claim 4, wherein the vehicle seat is provided.   The first engaging portion and the second engaging portion are convex portions protruding outward, and the third engaging portion and the fourth engaging portion penetrate through the convex portion engage with each other. The vehicle seat according to any one of claims 1 to 5, wherein the vehicle seat is a hole.   The vehicle seat according to claim 6, wherein the convex portion has a return portion extending in a direction opposite to a direction in which the first duct member is connected to the second duct member. The second duct member is connected to a rear end of the first duct member and extends upward;
The duct has a third duct member disposed on the seat back and connected to an upper end of the second duct member;
The said cover member covers at least one part of the 2nd connection part which is a connection part of a said 2nd duct member and a said 3rd duct member, The any one of Claims 1-7 characterized by the above-mentioned. The vehicle seat described. Comprising left and right backside frames constituting left and right frames of the seat back;
The vehicle according to claim 8, wherein the cover member includes a plate-like rear cover attached so as to span the left and right back side frames, and the rear cover covers the second connection portion from the rear. Sheet. One of the seat cushion and the seat back has a first air passage and a second air passage,
The duct has a first duct portion connected to the first air passage, and a second duct portion extending from the first duct portion and connected to the second air passage. The vehicle seat according to any one of claims 1 to 9.

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