JP6383222B2 - Ducted seat cushion - Google Patents

Description

  The present invention relates to a seat cushion with a duct in which a cover is fixed to a seat pad incorporating a duct.

  Conventionally, as this type of seat cushion with a duct, the cover is fixed to the seat pad by bundling the wire in the pad embedded in the seat pad and the cover side wire attached to the cover by the hog ring Is known (see, for example, Patent Document 1).

Patent No. 5419218 (paragraph [0014], FIG. 1 and FIG. 8)

  However, the above-described conventional seat cushion with a duct has a problem that when a knee or the like is attached to the seating surface, a hog ring that bottoms out on the duct hits the knee or the like and causes pain. Therefore, if a recess for accommodating the hog ring is formed in the duct wall in order to keep the hog ring away from the seating surface, another problem may occur that the inner cross-sectional area of the duct is reduced and the air volume of the duct is reduced.

  An object of the present invention is to provide a seat cushion with a duct capable of reducing pain caused by hoggling while suppressing a decrease in the air volume of the duct.

  The inventor of the present application has intensively studied to achieve the above object, and as a result, has found that when a hog ring pushed by a knee or the like is displaced with respect to the knee or the like, pain occurs. And based on this knowledge, this inventor came to make invention of Claims 1-8 below.

  That is, in the seat cushion with a duct according to the first aspect of the invention, the pad inner wire embedded in the seat pad incorporating the duct and the cover side wire attached to the cover that covers the front side surface of the seat pad are used for hogging. The seat cushion with the duct is bundled, and a wire exposure hole for exposing the wire in the pad is formed on the front side surface of the seat pad, and the duct projects to the front side of the seat pad, and the seat pad When viewed from the front side, the movement restricting protrusions arranged in pairs so as to sandwich the wire exposure hole in the extending direction of the wire in the pad are disposed one by one so as to sandwich the wire in the pad, The distance between the movement restricting protrusions arranged so as to sandwich the wire inside the pad is made narrower than the outer diameter of the hog ring, and the wire exposing hole is arranged therebetween. Having said spacing movement restricting projection between the was narrower than the outer diameter of the hog rings.

  According to a second aspect of the present invention, in the ducted seat cushion according to the first aspect, the opposing surfaces of the movement restricting projections arranged so as to sandwich the wire exposure hole are separated from each other as approaching the front side of the seat pad. It is characterized by being inclined.

  The invention according to claim 3 is the ducted seat cushion according to claim 1 or 2, wherein the opposing surfaces of the movement restricting projections arranged so as to sandwich the wire exposure hole pass through the wire exposure hole and are in the pad. It is characterized by being symmetrical with respect to a plane orthogonal to the wire.

  According to a fourth aspect of the present invention, in the ducted seat cushion according to any one of the first to third aspects, the movement restricting protrusions arranged so as to sandwich the wire in the pad in the width direction are opposed to each other. The surfaces are characterized in that they are inclined away from each other as they approach the front side of the seat pad.

  According to a fifth aspect of the invention, in the seat cushion with a duct according to any one of the first to fourth aspects, the movement restricting protrusion is narrowed as it approaches the front side of the seat pad, and the wire in the pad is It is characterized in that it is formed in a quadrangular pyramid shape having a pair of first inclined surfaces parallel to the extending direction and a pair of second inclined surfaces parallel to the width direction of the wire in the pad on the outer surface. Have.

  The invention according to claim 6 is the ducted seat cushion according to claim 5, wherein the inclination angle of the first outer inclined surface on the side away from the in-pad wire of the pair of first inclined surfaces is set to the pair of first inclined surfaces. The inclination angle of the second outer inclined surface on the side away from the wire exposure hole in the pair of second inclined surfaces is made smaller than the inclination angle of the first inner inclined surface on the side closer to the in-pad wire of the one inclined surface. Is characterized in that it is made smaller than the inclination angle of the second inner inclined surface on the side close to the wire exposure hole in the pair of second inclined surfaces.

  The invention according to claim 7 is the seat cushion with duct according to any one of claims 1 to 6, wherein the duct is provided with an air outlet that protrudes toward the front side surface of the seat pad and moves. It is characterized in that the protruding amount of the restricting protrusion is substantially the same as or smaller than the protruding amount of the outlet.

  The invention according to claim 8 is the seat cushion with duct according to any one of claims 1 to 7, wherein the movement restricting protrusion projects a part of the duct wall to the front side of the seat pad. However, it has characteristics.

[Invention of Claim 1]
In the ducted seat cushion of the present invention, when a seated person puts a knee or the like on the seating surface of the ducted seat cushion, the hog ring is pushed into the seat pad when the hog ring hits the knee or the like. Here, since the movement restricting protrusions protruding from the duct wall toward the front side surface of the seat pad are arranged in pairs so as to sandwich the wire exposure hole, the hog ring pushed into the seat pad is It is received between a pair of movement restricting projections. In addition, since the distance between the pair of movement restricting protrusions is narrower than the outer diameter of the hog ring, the hog ring is restricted when the hog ring pushed by the knee or the like falls in the extending direction of the wire in the pad. The movement of the hog ring can be restricted by hitting the protrusion. Further, the pair of movement restricting protrusions are provided in pairs so as to sandwich the wire in the pad, and the distance between the movement restricting protrusions sandwiching the wire in the pad is narrower than the outer diameter of the hog ring. The hog ring can be sandwiched between the movement restricting protrusions in the width direction of the wire in the pad. Thus, according to the present invention, when the knee or the like hits the hog ring, the movement of the hog ring can be restricted in both the extending direction and the width direction of the wire in the pad. As a result, the hog ring is prevented from being displaced with respect to the knee or the like, and the pain of the knee or the like due to the hog ring can be reduced. In addition, since the movement restricting protrusion protrudes to the front side of the seat pad, it is possible to suppress a decrease in the air volume of the duct. As described above, it is possible to reduce pain due to hoggling while suppressing a decrease in the air volume of the duct.

[Invention of claim 2]
According to invention of Claim 2, it becomes easy to receive a hog ring between one pair of movement control protrusions arrange | positioned so that a wire exposure hole may be pinched | interposed. Further, the hog ring can be stably fixed by sandwiching the hog ring in the extending direction of the wire in the pad by the pair of movement restricting protrusions.

[Invention of claim 3]
According to the invention of claim 3, it is possible to similarly restrict the movement of the hog ring when the hog ring falls to one side in the extending direction of the in-pad wire and to the other side.

[Invention of claim 4]
According to the fourth aspect of the present invention, it is possible to receive the wire in the pad between the movement restricting protrusions and to move the hog ring away from the seating surface of the seat cushion with duct. This makes it difficult for the hog ring to hit the knee or the like.

[Invention of claim 5]
According to the fifth aspect of the present invention, when the seated person's buttocks, knees, or the like hits the movement restricting protrusion, it is possible to suppress a feeling of strangeness to the seated person and to suppress a decrease in sitting comfort.

[Invention of claim 6]
According to the sixth aspect of the present invention, since the protrusion height from the duct wall decreases as the outer peripheral portion of the movement restricting protrusion group including the plurality of movement restricting protrusions goes outward, the plurality of movement restricting protrusions It is possible to suppress a decrease in sitting comfort.

[Invention of Claim 7]
According to the seventh aspect of the present invention, when the processing tool such as the cutting blade is moved in the direction crossing the protruding direction of the blower outlet to form the opening of the blower outlet, the interference between the processing tool and the movement restricting protrusion is suppressed. It becomes possible to improve the workability of opening formation.

[Invention of Claim 8]
According to the invention of claim 8, the inner cross-sectional area of the duct is increased at the portion where the movement restricting protrusion is formed, and it is possible to suppress the decrease in the air volume of the duct. Further, in the configuration in which the movement restricting protrusion is formed in a quadrangular pyramid shape as in the invention of claim 5, it is possible to make the air flow in the duct smooth.

The perspective view of the seat cushion with a duct concerning one embodiment of the present invention. Side cross-sectional view of ducted seat cushion Top view of seat pad Perspective view around the duct movement restriction projection Top view around the duct movement restriction projection The figure which shows the arrangement | positioning relationship of a movement control protrusion, the wire in a pad, and a wire exposure hole AA cross section of the duct (A) Enlarged view around the movement restricting protrusion in FIG. 7, (B) BB sectional view of the duct (A) Side view around the first movement restricting protrusion, (B) Side view around the first movement restricting protrusion when the hog ring comes into contact with the first movement restricting protrusion, (C) Hog ring is the first movement Side view of the periphery of the first movement restricting protrusion when contacting the restricting protrusion (A) The top view of the movement control protrusion which concerns on a modification, (B) The top view of the movement control protrusion which concerns on a modification

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the seat cushion 10 with a duct of this embodiment comprises the seat part of the vehicle seat 90, for example, and incorporates the duct 30. As shown in FIG. Specifically, the seat cushion 10 with a duct has a structure in which the front side surface 11M of the seat pad 11 is covered with a cover 20, as shown in FIG. The seat pad 11 is, for example, a foamed product of resin such as polyurethane, and has a structure in which a duct 30 is embedded in the pad main body 11H by insert molding. In addition to the duct 30, an in-pad wire 12 for fixing the cover 20 to the seat pad 11 is embedded in the pad main body 11H.

  As shown in FIG. 3, the seat pad 11 includes a main portion 11A that receives the buttocks and thighs of the seated person, and side portions 11B and 11B that protrude from the main portion 11A on both sides of the main portion 11A. . A plurality of vent holes 13 and suspension grooves 14 are formed on the front side surface 11M of the seat pad 11.

  As shown in FIGS. 1 and 3, the hanging groove 14 is disposed along the in-pad wire 12 in the seat pad 11. Specifically, the suspension groove 14 includes a pair of vertical grooves 14A and 14A extending in the front-rear direction at a boundary portion between the main portion 11A and the side portions 11B and 11B of the seat pad 11, and the pair of vertical grooves 14A. , 14A and a plurality of transverse grooves 14B communicating with each other. A plurality of wire exposure holes 15 for exposing the in-pad wires 12 embedded in the seat pad 11 are formed on the bottom surface 14 </ b> M of the hanging groove 14.

  As shown in FIGS. 1 and 2, the duct 30 is a resin blow-molded product, and has a structure in which an air passage 30 </ b> R is provided inside a tubular duct wall 31. Specifically, the duct 30 includes a plurality of vertical cylinder portions 30A extending in the front-rear direction of the vehicle seat 90, and a horizontal cylinder portion 30B that connects the plurality of vertical cylinder portions 30A. One vertical cylinder part 30A (in FIG. 1, the middle vertical cylinder part 30A in the cylinder part 30A) communicates with an air supply port (not shown). In addition, a plurality of air outlets 32 that protrude from the duct wall 31 and communicate with the above-described vent hole 13 (see FIG. 3) are provided in the upper portion of the duct 30 (portion facing the front side of the seat pad 11). And the air supplied from the air supply port is discharged | emitted from the blower outlet 32 through the ventilation path 30R.

  The cover 20 is fixed to the seat pad 11 as follows. That is, as shown in FIG. 2, the cover-side wire 22 is attached to the back side of the cover 20 via the hanging string 21. Then, the cover side wire 22 and the in-pad wire 12 embedded in the seat pad 11 are coupled by the hog ring 25 in a state where the hanging strap 21 is pulled into the hanging groove 14, so that the cover 20 is seat pad. 11 is fixed. Specifically, the pad inner wire 12 and the cover side wire 22 are inserted inside the hog ring 25, and the hog ring 25 crosses the pad inner wire 12 and the cover side wire 22 when viewed from the front side of the seat pad 11. Are arranged as follows.

  By the way, if a seated person puts a knee etc. on the seat cushion 10 with a duct, for example, the knee etc. may hit the hog ring 25 which bottomed down the duct 30. At this time, if the hog ring 25 is displaced with respect to the knee or the like, pain may occur in the knee or the like. In order to solve such a problem, in the ducted seat cushion 10 of the present embodiment, the duct 30 is provided with a plurality of movement restricting protrusions 40 for restricting the movement of the hog ring 25.

  As shown in FIG. 4, the plurality of movement restricting protrusions 40 protrude toward the front side (upper side) of the seat pad 11. Specifically, as shown in FIG. 7, the movement restricting protrusion 40 has a part of the duct wall 31 protruding to the front side, and the inner portion of the movement restricting protrusion 40 constitutes a part of the air passage 30 </ b> R. To do. The protrusion amount H1 of the movement restricting protrusion 40 from the duct wall 31 is substantially the same as the protrusion amount H2 of the blowout port 32 from the duct wall 31. In addition, as shown in FIG. 7, the duct wall 31 bulges in a stepped shape around the air outlet 32.

  As shown in FIG. 5, the plurality of movement restricting protrusions 40 sandwich the in-pad wire 12 extending along the lateral groove 14 </ b> B (see FIG. 3) of the hanging groove 14 when the seat pad 11 is viewed from the front side. Is arranged. Specifically, the plurality of movement restricting protrusions 40 include first movement restricting protrusions 41A and 41B disposed on one side in the width direction of the in-pad wire 12 (upper side in FIG. 5), and the in-pad wire 12. 2nd movement control protrusion 42A, 42B arrange | positioned at the other side (lower side of FIG. 5) of this width direction.

  As shown in FIG. 6, the plurality of movement restricting protrusions 40 are arranged so as to sandwich the wire exposure hole 15 in the extending direction of the in-pad wire 12 when the seat pad 11 is viewed from the front side. . Specifically, on one side in the width direction of the in-pad wire 12 (upper side in FIG. 6), the first movement restricting protrusions 41A and 41B are arranged in a pair so as to sandwich the wire exposure hole 15 therebetween. On the other side in the width direction of the in-pad wire 12 (lower side in FIG. 6), the second movement restricting protrusions 42A and 42B are arranged in pairs so as to sandwich the wire exposure hole 15.

  The distance D2 between the first movement restricting protrusions 41A and 41B arranged so as to sandwich the wire exposure hole 15 is wider than the width D1 of the wire exposure hole 15. The distance D2 is narrower than the outer diameter D3 of the hog ring 25. Furthermore, the distance D4 between the first movement restricting protrusion 41A and the second movement restricting protrusion 42A arranged so as to sandwich the in-pad wire 12 is narrower than the outer diameter D3 of the hog ring. In FIG. 6, the hog ring 25 viewed from the axial direction is indicated by a two-dot chain line in order to facilitate comparison between the distances D <b> 2 and D <b> 4 and the outer diameter D <b> 3 of the hog ring 25. Further, the distance between the second movement restriction protrusions 42A and 42B is the same as the distance D2 between the first movement restriction protrusions 41A and 41B, and the first movement restriction protrusion 41B and the second movement restriction protrusion. The distance from 42B is the same as the distance D4 between the first movement restriction protrusion 41A and the second movement restriction protrusion 42A.

  As shown in FIG. 4, each movement restricting protrusion 40 is formed in a quadrangular frustum shape. Specifically, as shown in FIG. 6, each movement restricting protrusion 40 has a rectangular shape in plan view, and a first inner inclined surface 45 and a first outer inclined extending along the extending direction of the in-pad wire 12. The outer surface has a surface 46 and a second inner inclined surface 43 and a second outer inclined surface 44 extending along the width direction of the in-pad wire 12. In the present embodiment, the first movement restricting protrusions 41 </ b> A and 41 </ b> B and the second movement restricting protrusions 42 </ b> A and 42 </ b> B pass through the center line of the wire exposure hole 15 and are orthogonal to the in-pad wire 12. It is symmetric with respect to S1.

  As shown in FIG. 6, between the first movement restricting protrusions 41A and 41B arranged so as to sandwich the wire exposure hole 15, the second inner inclined surfaces 43 and 43 of the movement restricting protrusions 41A and 41B face each other. Be placed. The second inner inclined surfaces 43, 43 are inclined so as to be separated from each other as they approach the distal end side of the movement restricting protrusion 40, that is, as they approach the front side of the seat pad 11 (see FIG. 8B). . Further, the second inner inclined surfaces 43 and 43 facing each other between the second movement restricting protrusions 42A and 42B are similarly inclined.

  In addition, between the first movement restriction protrusion 41A and the second movement restriction protrusion 42A that face each other in the width direction of the in-pad wire 12, the first inner inclined surfaces 45, 45 of the movement restriction protrusions 41A, 42A are mutually connected. Opposed. The first inner inclined surfaces 45, 45 are inclined so as to be separated from each other as they approach the front end side of the movement restricting protrusion 40, that is, as they approach the front side of the seat pad 11 (see FIG. 8A). . Further, the first inner inclined surfaces 45, 45 facing each other between the first movement restricting protrusion 41B and the second movement restricting protrusion 42B are similarly inclined.

  As shown in FIG. 8A, the inclination angle α1 of the first outer inclined surface 46 with respect to the duct wall 31 is smaller than the inclination angle α2 of the first inner inclined surface 45 with respect to the duct wall 31. As shown in FIG. 8B, the inclination angle β1 of the second outer inclined surface 44 with respect to the duct wall 31 is smaller than the inclination angle β2 of the second inner inclined surface 43 with respect to the duct wall 31. Thereby, in this embodiment, the protrusion height from the duct wall 31 becomes low as the outer peripheral part of the movement control protrusion part group 40G (refer FIG. 6) which consists of the four movement control protrusions 40 goes outside. Thereby, for example, even if a seated person's buttocks or the like hits the plurality of movement restricting protrusions 40, it is possible to make it difficult to give a sense of incongruity to the buttocks or the like, and to suppress a decrease in sitting comfort due to the plurality of movement restricting protrusions 40. It becomes possible. Further, as described above, the movement restricting projection 40 is formed by projecting a part of the duct wall 31, so that the air flowing through the ventilation path 30R in the duct wall 31 is a portion where the movement restricting projection 40 is formed. It is possible to suppress air turbulence and allow air to pass smoothly.

  This completes the description of the configuration of the movement restricting protrusion 40. Next, the restriction | limiting of the movement of the hog ring 25 by the movement control protrusion 40 is demonstrated.

  When the seated person puts a knee or the like on the ducted seat cushion 10 and the hog ring 25 hits the knee or the like, the hog ring 25 is pushed into the seat pad 11, and as shown in FIG. It is received between the first movement restricting protrusions 41A and 41B arranged so as to be sandwiched. Here, the second inner inclined surfaces 43, 43 arranged so as to sandwich the wire exposure hole 15 are inclined so as to be separated from each other as they approach the front side surface 11 </ b> M of the seat pad 11. The hog ring 25 is easily received between the protrusions 41A and 41B.

  As shown in FIG. 9B, the hog ring 25 pushed by the knee or the like may fall in the extending direction of the in-pad wire 12 (FIG. 9B shows an example of falling in the counterclockwise direction. ing.). Here, since the distance D2 between the first movement restricting protrusions 41A and 41B is narrower than the outer diameter D3 of the hog ring 25 (see FIG. 6), it will fall in the extending direction of the wire 12 in the pad. The hog ring 25 is abutted against the first movement restricting protrusion 41B. Thereby, the movement of the hog ring 25 in the extending direction of the in-pad wire 12 is restricted. Specifically, the end of the hog ring 25 on the first movement restriction protrusion 41B side enters between the first movement restriction protrusion 41B and the second movement restriction protrusion 42B.

  When the hog ring 25 is tilted in the opposite direction to the example of FIG. 9B (clockwise in FIG. 9B), the hog ring 25 is abutted against the first movement restricting protrusion 41A, and the first movement restricting part 41A. Similarly to the case of the protrusion 41B, the movement of the hog ring 25 is restricted. In addition, in the present embodiment, the opposing surfaces of the first movement restricting protrusions 41A and 41B, that is, the second inner inclined surfaces 43 and 43 pass through the wire exposure holes 15 and are surfaces S1 orthogonal to the in-pad wires 12. Since it is symmetrical with respect to (see FIG. 6), the movement of the hog ring 25 is similarly controlled regardless of whether the hog ring 25 falls on one side or the other side in the extending direction of the in-pad wire 12. It becomes possible.

  Further, as described above, the second inner inclined surfaces 43 and 43 that are the opposing surfaces of the first movement restricting protrusions 41A and 41B are inclined so as to be separated from each other as they approach the front side surface 11M of the seat pad 11. Therefore, the hog ring 25 can be stably fixed by sandwiching the hog ring 25 in the extending direction of the in-pad wire 12 by the first movement restricting protrusions 41A and 41B (see FIG. 9C). . 9B and 9C, the in-pad wire 12 is hidden behind the cover side wire 22 and cannot be seen.

  As described above, in the present embodiment, the movement of the hog ring 25 in the extending direction of the in-pad wire 12 can be restricted by the first movement restricting protrusions 41A and 41B. Although not shown, the movement of the hog ring 25 can be similarly restricted for the second movement restricting protrusions 42A and 42B.

  In the present embodiment, the distance D4 between the first movement restricting protrusion 41A and the second movement restricting protrusion 42A arranged so as to sandwich the in-pad wire 12 is narrower than the outer diameter D3 of the hog ring 25. Therefore (see FIG. 6), the hog ring 25 is sandwiched between the first movement restricting protrusion 41A and the second movement restricting protrusion 42A in the width direction of the in-pad wire 12 (see FIGS. 5 and 8A), and the pad The movement of the hog ring 25 in the width direction of the inner wire 12 is restricted.

  Thus, in this embodiment, when the knee or the like is put on the duct-containing seat cushion 10 and the knee or the like hits the hog ring 25 and the hog ring 25 hits the bottom of the duct 30, the extending direction and the width direction of the in-pad wire 12. It is possible to restrict the movement of the hog ring 25 in both cases. As a result, the hog ring 25 is prevented from being displaced with respect to the knee or the like, and the pain of the knee or the like due to the hog ring 25 can be reduced. Moreover, since the movement restricting protrusion 40 protrudes from the duct wall 31 toward the front side surface 11M of the seat pad 11, it is possible to suppress a decrease in the air volume of the duct 30. As described above, it is possible to reduce pain due to the hog ring 25 while suppressing a decrease in the air volume of the duct 30.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various modifications are possible within the scope of the invention other than the following. It can be changed and implemented.

  (1) In the above embodiment, the movement restricting protrusion 40 is disposed so as to restrict the movement of the hog ring 25 that binds the in-pad wire 12 and the cover-side wire 22 extending along the lateral groove 14B. You may arrange | position so that the movement of the hog ring which binds the wire in a pad extended along the groove | channel 14A and the cover side wire 22 may be controlled.

  (2) In the above embodiment, the movement restricting protrusion 40 is formed by causing the duct wall 31 to protrude to the front side, but may be formed with the duct wall 31 being thick.

  (3) In the above embodiment, the movement restricting protrusion 40 has a quadrangular pyramid shape, but may be, for example, a triangular frustum shape (see FIG. 10A) or a truncated cone shape. (See FIG. 10B).

  (4) In the above embodiment, the protrusion amount H1 of the movement restricting protrusion 40 from the duct wall 31 is substantially the same as the protrusion amount H2 of the blowout port 32 from the duct wall 31, but from the protrusion amount H2. It may be small. In addition, if the protrusion amount H1 is smaller than the protrusion amount H2, the movement restricting protrusion 40 does not get in the way and is easy to be processed when the blow-out duct 30 is processed to open the air outlet 32.

  (5) In the above-described embodiment, the example in which the ducted seat cushion 10 is applied to the seat portion of the vehicle seat 90 has been described. However, the ducted seat cushion 10 may be applied to a backrest portion.

DESCRIPTION OF SYMBOLS 10 Seat cushion with duct 11 Seat pad 12 Wire in pad 20 Cover 25 Hog ring 30 Duct 31 Duct wall 40 Movement control protrusion

Claims (8)

A seat cushion with a duct in which a wire in a pad embedded in a seat pad incorporating a duct and a cover side wire attached to a cover covering the front side surface of the seat pad are bundled by a hog ring,
On the front side surface of the seat pad, a wire exposure hole for exposing the wire in the pad is formed,
The duct protrudes to the front side of the seat pad and is arranged in pairs so as to sandwich the wire exposure hole in the extending direction of the wire in the pad when the seat pad is viewed from the front side. The movement restricting protrusions are arranged in pairs so as to sandwich the wire in the pad,
The distance between the movement restricting protrusions arranged to sandwich the wire in the pad is made smaller than the outer diameter of the hog ring, and the distance between the movement restricting protrusions arranged to sandwich the wire exposure hole is A ducted seat cushion characterized by being narrower than the outer diameter of the hog ring. Of mutually opposing surfaces of the arranged the movement restriction projection so as to sandwich the wire insertion holes is described that as the front approaches the front side of carboxymethyl Topaddo are inclined away from each other to claim 1, wherein Duct seat cushion.   The opposing surfaces of the movement restricting protrusions arranged so as to sandwich the wire exposure hole are symmetric with respect to a plane that passes through the wire exposure hole and is orthogonal to the wire in the pad. Item 10. A duct cushion with a duct according to Item 1 or 2.   2. The opposing surfaces of the movement restricting protrusions arranged so as to sandwich the wire in the pad in the width direction are inclined so as to be separated from each other as approaching the front side of the seat pad. The duct cushion with a duct according to any one of claims 1 to 3.   The movement restricting protrusions are narrowed as they approach the front side of the seat pad, a pair of first inclined surfaces parallel to the extending direction of the wire in the pad, and 1 parallel to the width direction of the wire in the pad. The ducted seat cushion according to any one of claims 1 to 4, wherein the seat cushion is formed in a quadrangular frustum shape having a pair of second inclined surfaces on an outer surface. The inclination angle of the first outer inclined surface on the side away from the wire in the pad of the pair of first inclined surfaces is defined as the first inner side on the side close to the wire in the pad of the pair of first inclined surfaces. While making it smaller than the inclination angle of the inclined surface,
The inclination angle of the second outer inclined surface on the side away from the wire exposure hole in the pair of second inclined surfaces is set to be the second inner side on the side close to the wire exposure hole in the pair of second inclined surfaces. 6. The ducted seat cushion according to claim 5, wherein the seat cushion is smaller than an inclination angle of the inclined surface. The duct is provided with an air outlet that protrudes toward the front side surface of the seat pad,
The protrusion amount of the said movement control protrusion is substantially the same as the protrusion amount of the said blower outlet, or made smaller than the protrusion amount of the said blower outlet, The claim in any one of the Claims 1 thru | or 6 characterized by the above-mentioned. Duct seat cushion.   The seat cushion with duct according to any one of claims 1 to 7, wherein the movement restricting protrusion has a part of a duct wall protruding to the front side of the seat pad.

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