Air-conditioning flow path unit for seat

Abstract

The present invention provides an air-conditioning flow path unit for a seat in which a blower is difficult to be displaced with respect to a cover member. The air-conditioning flow path unit is provided with: a planar cover member having a cover section (11) that covers the seat cushion so as to form a flow path wall of the ventilation flow path (2d), and a connection port (12) that is formed in a part of the cover section and that connects the flow path of the blower from the seat back side; a front-side attachment member provided with a front-side contact portion (21) that comes into contact with the cover member from the front side of the seat; a fixing part for fixing the front-side attachment member to the cover member; and a back-side mounting member provided with a blower mounting portion and provided on the seat back side of the cover member. The front-side attachment member has a protruding portion (22) protruding toward the seat back side through the connection port, the back-side attachment member has a fitting portion (44) fitted to the protruding portion by relative rotation about the connection port, and the back-side attachment member is attached to the front-side attachment member by the fitting of the fitting portion.

Description

Technical Field

[0001] The present invention relates to an air conditioning flow path unit for a seat, and more particularly to an air conditioning flow path unit for a seat including a cover member that covers a ventilation flow path formed on a back surface of a cushion, and a blower that is flow-path-connected to the ventilation flow path. Background Art

[0002] Patent document 1 discloses an air conditioning flow path unit for a seat, which comprises: a covering member that covers the back surface of a cushion pad and covers a concave ventilation flow path formed on the back surface of the cushion pad; and a blower that draws air from the ventilation flow path through a connection port formed in the covering member. The blower draws air in the ventilation flow path and exhausts it to the bottom of the cushion pad, thereby enabling efficient ventilation inside the cushion. Prior art literature Patent Literature

[0003] Patent document 1: Japanese Patent Application Publication No. 2018-144591. Summary of the invention Problems to be solved by the invention

[0004] The blower is assembled and supported on the seat cushion frame. Therefore, the blower is arranged in an overlapping manner without mechanically engaging with the connection port of the cover member. Therefore, due to the displacement of the seat cushion pad relative to the seat cushion frame caused by the seating load, the arrangement relationship between the blower and the connection port is shifted, and the air intake and exhaust performance of the blower may be reduced. Therefore, an air conditioning flow path unit for a seat is provided, in which the blower is difficult to be displaced relative to the cover member. Means for solving problems

[0005] In order to solve the above-mentioned problems, the air conditioning flow path unit for a seat of the present invention adopts the following means.

[0006] The first invention of the present invention is an air conditioning flow path unit for a seat, comprising: a planar covering member having a covering portion and a connection port, wherein the covering portion covers the seat cushion in a manner constituting a flow path wall of a concave ventilation flow path formed in the seat cushion, the connection port being formed in a part of the covering portion, and a blower being flow-path-connected to the connection port from the back side of the seat; a front side mounting member having a front side abutting portion abutting against the covering member from the front side of the seat; a fixing portion fixing the front side mounting member to the covering member; and a back side mounting member having a mounting portion. A blower mounting portion for mounting the blower is arranged on the seat back side of the covering component, one of the front side mounting component and the back side mounting component has a protrusion that protrudes toward the other of the front side mounting component and the back side mounting component through the connecting port, and the other has a fitting portion, and the fitting portion is fitted into the protrusion by relative rotation along the covering surface of the covering component around the connecting port relative to the protrusion, and the back side mounting component is mounted on the front side mounting component through the fitting of the fitting portion.

[0007] According to the above configuration, the blower can be assembled to the cover member having the connection port via the front side mounting member and the rear side mounting member, thereby making it difficult for the blower to be displaced relative to the cover member.

[0008] The second invention of the present invention is an air conditioning flow path unit for a seat as follows: in the above-mentioned first invention, the back-side mounting component has a back-side abutment portion, the back-side abutment portion abuts against the covering component from the back side of the seat, the covering component is sandwiched between the back-side abutment portion and the front-side abutment portion, and the fixing portion is a sandwiching structure of the covering component formed by the front-side abutment portion and the back-side abutment portion. According to the above-mentioned structure, the front-side mounting component and the back-side mounting component can be appropriately fixed to the covering component. Thereby, the positional deviation of the blower relative to the covering component can be more appropriately suppressed.

[0009] The third invention of the present invention is the following air conditioning flow path unit for a seat: in the above-mentioned first or second invention, the protruding portion is formed as a hook portion, the hook portion protrudes from the front side mounting component through the connecting port to the back side of the seat, and extends outward in a folded shape at the front end of the protrusion toward the diameter direction of the connecting port, and the fitting portion formed on the back side mounting component is fitted into the hook portion with a snap fit in the rotation direction. According to the above structure, the fitting portion is assembled to the hook portion in a state of preventing detachment by fitting through snap fit. In addition, by the abutment between the fitting portion realized by the folding back of the hook portion and the hook portion in the front and back directions of the seat, the front side mounting component and the back side mounting component are assembled so as not to fall off from the covering component in the front and back directions of the seat.

[0010] The fourth invention of the present invention is the following air conditioning flow path unit for a seat: in the third invention, the hook portion formed on the front side mounting component is inserted in a manner protruding from the connection port and the enlarged diameter hole toward the back side of the seat, the enlarged diameter hole is formed in an enlarged diameter shape from a part of the connection port, and the hook portion is arranged at a position passing through the connection port and deviating from the enlarged diameter hole by the rotation of the front side mounting component, and by this arrangement, the fitting portion is fitted in a manner of being clamped between the hook portion and the covering component. According to the above structure, the fitting portion is fitted in a manner of being clamped between the hook portion and the covering component. As a result, the front side mounting component and the back side mounting component can be assembled relative to the covering component without shaking.

[0011] The fifth invention of the present invention is an air conditioning flow path unit for a seat as follows: in the above-mentioned third invention, the hook portion and / or the fitting portion has an inclined push-in surface, and the push-in surface pushes the fitting portion in a direction gradually pressed against the covering component as the rotational movement of the fitting portion fitting into the hook portion proceeds. According to the above-mentioned structure, as the rotational movement of the fitting portion proceeds, the front side mounting component and the back side mounting component are respectively pressed against the covering component. Thus, the front side mounting component and the back side mounting component are mounted on the covering component in a manner of appropriately sandwiching the covering component. For example, if the inclined push-in surface is set on the hook portion, the insertion port of the hook portion into which the fitting portion is inserted can be enlarged and the fitting portion can be easily inserted. In addition, if the push-in surface is set on the fitting portion, the front end of the fitting portion in the rotational direction can be made thinner and the fitting portion can be easily inserted into the insertion port of the hook portion.

[0012] The sixth invention of the present invention is the following air conditioning flow path unit for a seat: in the above-mentioned second invention, the front side abutment portion and the back side abutment portion abut against the covering member in a manner surrounding the connection port. According to the above-mentioned structure, it is possible to appropriately seal so that the air passing through the connection port does not leak to the outside.

[0013] The seventh invention of the present invention is the following air conditioning flow path unit for a seat: in the sixth invention, the front side abutting portion is a front side ring plate that abuts in a planar manner in a manner surrounding the connection port of the covering component, and the back side abutting portion is a cylindrical rib that protrudes in a cylindrical manner from the back side mounting component in a manner surrounding the connection port of the covering component. According to the above structure, the covering component is sandwiched in a manner in which the cylindrical rib and the planar ring plate are in line contact. Thereby, the front side abutting portion and the back side abutting portion can be appropriately sandwiched with the covering component, and the sealing performance of the front side abutting portion and the back side abutting portion with respect to the covering component can be ensured at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a perspective view of a seat back to which the air conditioning flow path unit according to the first embodiment is applied.

[0015] Figure 2 It is an exploded perspective view of the seat back.

[0016] Figure 3 Observe from the front Figure 2 Exploded three-dimensional diagram.

[0017] Figure 4 is a rear view of the seat back.

[0018] Figure 5 It is a rear view showing the seat back in a state where the air conditioning flow path unit is removed.

[0019] Figure 6 yes Figure 4 VI-VI line cross-sectional view.

[0020] Figure 7 yes Figure 6 Enlarged view of Part VII.

[0021] Figure 8 It is a perspective view showing a state where the hook portion is passed through the covering member.

[0022] Fig. 9 It is shown from Figure 8 A perspective view showing a state in which the front-side mounting component is rotated clockwise in a rear view.

[0023] Fig.10 It is a perspective view showing a state in which the air conditioning flow path unit is assembled.

[0024] Fig.11 This is a perspective view showing that the fitting portion and the hook portion are arranged so as to be offset from each other in the rotation direction.

[0025] Fig.12 1 is a schematic diagram showing the rotation direction of the lower engaging portion when viewed from the rear.

[0026] Fig.13 It is a schematic diagram showing a state in which the fitting portion is fitted into the hook portion in a rear view.

[0027] Fig.14 So Fig.13 The hatching line represents a cross-sectional view of the fitting state of the fitting portion.

[0028] Fig.15 It is a perspective view showing another embodiment of the air conditioning flow path unit.

[0029] Fig.16 It is a cross-sectional view showing another embodiment of the air conditioning flow path unit. DETAILED DESCRIPTION

[0030] Below, use Figure 1-16 In the following description, when directions such as front, back, up, down, left, and right are shown, these directions are referred to as shown in the drawings.

[0031] <First Embodiment> First, an air conditioning flow path unit for a seat (air conditioning flow path unit 3) according to a first embodiment of the present invention will be described. Figure 1 As shown, the air conditioning flow path unit 3 is applied to a seat back 1 of a car seat. The seat back 1 includes a back frame (not shown) constituting a frame, a back cushion 2 (not shown) assembled to the back frame from the front side and constituting a cushioning material, and a back cover (not shown) covering the back cushion 2 from the front side. The air conditioning flow path unit 3 is mounted on the back side of the back cushion 2.

[0032] like Figure 2 As shown, the air conditioning flow path unit 3 includes a planar cover member 10 installed in a manner to cover the back of the back cushion 2 and a blower housing 50 installed on the cover member 10 from the seat back side. In addition, the air conditioning flow path unit 3 includes a mounting member 4 for mounting the blower housing 50 on the cover member 10. A blower (not shown) is accommodated inside the blower housing 50. The blower operates in a manner to actively ventilate the inside of the back cushion 2. As a result, the air conditioning flow path unit 3 can improve the comfort of the seat back 1.

[0033] like Figure 2 As shown in FIG. 1 , the backrest pad 2 includes a pad body 2a for elastically supporting the back of a seated person and a concave ventilation flow path 2d extending along a pad back surface 2c of the pad body 2a. In addition, the backrest pad 2 includes a plurality of holes extending from a bottom surface 2e of the ventilation flow path 2d to a pad surface 2b (see FIG. 1 ). Figure 3 ) is provided with a plurality of ventilation holes 2g. The cushion body 2a is made of a polyurethane foam molding. The ventilation flow path 2d is formed to open toward the back of the seat, and the opening is closed by the covering member 10. The ventilation flow path 2d is connected to the blower through a connection port 12 formed in the covering member 10. Here, the backrest cushion 2 is equivalent to the "seat cushion" of the present invention.

[0034] The air permeability inside the back cushion 2 is improved by the ventilation flow path 2d and the vents 2g. Thus, the efficiency of the seat air conditioning based on the blower is improved. The blower sends air toward the rear of the back cushion 2, thereby sucking air from the cushion surface 2b side toward the vents 2g. The air sucked into the vents 2g is discharged from the connection port 12 to the rear of the back cushion 2 through the ventilation flow path 2d. In this way, the seat air conditioning based on the blower is implemented. In addition, the blower can also operate in a manner of sending air from the cushion back side 2c toward the cushion surface 2b.

[0035] <Installation Part 4> like Figure 2 , Figure 3 As shown, the mounting member 4 of the air conditioning flow path unit 3 includes: a front mounting member 20, which is assembled to the cover member 10 from the front side of the seat; and a back mounting member 40, which is assembled to the front mounting member 20 from the back side of the seat via the cover member 10. Figure 8 , Fig. 9 As shown, the back-side mounting member 40 has a blower mounting portion 42 to which a blower housing 50 can be mounted. The blower housing 50 is mounted on the blower mounting portion 42 from the seat back side. Thus, the back-side mounting member 40 and the blower housing 50 are assembled into one body.

[0036] like Figure 8 , Fig. 9 As shown, the front side mounting component 20 has a protrusion (hook portion 22) that protrudes toward the seat back through the connection port 12 by being assembled to the cover component 10. The back side mounting component 40 is mounted on the hook portion 22 from the seat back. Specifically, the fitting portion 44 of the back side mounting component 40 abuts against the cover component 10 from the seat back and rotates around the connection port 12. As a result, the fitting portion 44 is hooked on the hook portion 22. As a result, as Fig.10 As shown, the rear side mounting member 40 and the blower housing 50 are mounted to the cover member 10 via the front side mounting member 20. In this way, the blower can be installed so that it is difficult to be displaced relative to the cover member 10.

[0037] <Backrest pad 2> Hereinafter, each structure of the seat back 1 will be described in detail. Figure 5 As shown, the ventilation flow path 2d of the backrest cushion 2 has a bottom surface 2e of its concave front end and a side surface 2f that rises from the periphery of the bottom surface 2e in a vertical wall shape. In addition, the ventilation flow path 2d is formed in a substantially H-shape when viewed from behind, and includes: a flow path base 2i formed in a substantially central portion in the height direction of the cushion back surface 2c; and four flow path front portions 2j extending in a manner of branching from the flow path base 2i in the height direction. More ventilation holes 2g are provided in each flow path front portion 2j than in the flow path base 2i. Therefore, a large amount of air can easily flow into each flow path front portion 2j.

[0038] Each flow path front portion 2j is formed into a tapered shape in which the width of each flow path gradually narrows toward the front end in the extension direction. Figure 4 As shown in FIG. 1 , the blower is provided so as to cover the flow path base 2i of the ventilation flow path 2d from the seat back side. Figure 5As shown, the air flowing into the ventilation flow path 2d from each vent hole 2g is sucked by the blower in a manner of flowing from each flow path front portion 2j to the flow path base portion 2i. Due to the tapered shape of each flow path front portion 2j, when viewed along the flow direction of the air, the flow path width of the ventilation flow path 2d gradually increases. As a result, the flow velocity of the inflowing air is reduced. By reducing the flow velocity, the blower can properly inhale the inflowing air. According to the above structure, the ventilation flow path 2d is configured so that the blower can inhale a sufficient amount of air and discharge it efficiently.

[0039] <Covering member 10> like Figure 2 As shown, the covering member 10 includes: a covering portion 11 extending in a planar shape along the back surface 2c of the cushion; a connection port 12 opening in a circular shape from a substantially central portion of the covering portion 11; and an expanded diameter hole 13 formed in an expanded diameter shape from a portion of the connection port 12. The covering portion 11 covers the flow path space of the ventilation flow path 2d from the seat back side. The periphery of the covering portion 11 overlaps with the back surface 2c of the cushion and is bonded by an adhesive such as hot melt. Thus, the covering member 10 is maintained in a state of covering the back surface 2c of the cushion. The expanded diameter hole 13 is formed to extend in a fan-like shape from the connection port 12 to both outer sides in the seat width direction.

[0040] like Figure 3 As shown in FIG. 1 , the cover member 10 includes an annular protrusion 15 protruding toward the front side of the seat in a manner that annularly surrounds the connection port 12, and a plurality of linear ribs 14 protruding toward the front side of the seat from the periphery of the annular protrusion 15. Each rib 14 is formed to extend radially from the connection port 12 along the in-plane direction of the cover portion 11. Each rib 14 can increase the rigidity of the cover portion 11. Figure 6 , Figure 7 As shown, the annular convex portion 15 abuts against the back surface 2c of the gasket by installing the covering member 10 to the back surface 2c of the gasket. As a result, it is difficult to generate a gap between the covering member 10 and the back surface 2c of the gasket around the connection port 12. As a result, it is difficult for air to leak from around the connection port 12, and the reduction in the air intake performance of the blower can be suppressed.

[0041] <Front side mounting member 20> like Figure 2 As shown, the front side mounting member 20 has a front side ring plate 21 formed in a ring plate shape and a front side ring hole 21a opened from the central part of the front side ring plate 21. In addition, the front side mounting member 20 has a hook portion 22 protruding from the front side ring hole 21a toward the seat back side. The hook portion 22 has a cylindrical portion 22a protruding from the periphery of the front side ring hole 21a in a cylindrical shape and two folded portions 22b formed in a folded shape from a part of the protruding front end of the cylindrical portion 22a to the outside of the hole diameter direction of the front side ring hole 21a. Here, the hook portion 22 is equivalent to the "protruding portion" of the present invention.

[0042] like Figure 3 , Figure 7 As shown, the front side ring plate 21 is assembled in a manner that it is fitted into the inner peripheral side of the annular protrusion 15 of the cover member 10 from the front side of the seat. Through this assembly, the front side ring plate 21 is in planar contact with the cover member 10 from the front side of the seat in a manner that surrounds the periphery of the connection port 12. The front side ring plate 21 that is in contact with the cover member 10 is fixed to the cover member 10 by a double-sided tape 30. Figure 8 As shown in FIG. 1 , the cylindrical portion 22a of the hook portion 22 protrudes toward the seat back through the connection port 12. The folded portion 22b of the hook portion 22 protrudes toward the seat back through the enlarged diameter hole 13. Fig. 9 As shown, the front side mounting member 20 has a rotation restricting rib 23 for restricting movement of the front side mounting member 20 in the rotation direction relative to the cover member 10. Here, the front side ring plate 21 corresponds to the "front side abutment portion" of the present invention.

[0043] <Back side mounting member 40> like Figure 8 As shown in the figure, the back side mounting member 40 includes a back side ring plate 41 formed in a ring plate shape, a plurality of blower mounting portions 42 extending from the outer peripheral portion of the back side ring plate 41 toward the back side of the seat, and a back side annular hole 41a opened from the central portion of the back side ring plate 41. Each blower mounting portion 42 is formed in a structure that allows the rear housing 52 of the blower housing 50 to be mounted from the back side of the seat. In addition, the back side mounting member 40 includes two fitting portions 44 extending from a portion of the peripheral edge of the back side annular hole 41a toward the inner side in the hole diameter direction.

[0044] like Figure 11-13 As shown in FIG. 1 , each engaging portion 44 has a claw portion 44a that engages with the folded portion 22b of each hook portion 22 and a rotation limiting portion 44b that limits movement in the rotation direction. Each engaging portion 44 engages with each hook portion 22 by rotating counterclockwise when viewed from behind. By this engagement, the back-side mounting component 40 is mounted on the front-side mounting component 20. In addition, as shown in FIG. Figure 3 As shown in FIG. 1 , the back-side mounting member 40 has a cylindrical rib 43 that protrudes cylindrically from the periphery of the back-side annular hole 41 a toward the front side of the seat. Figure 7 As shown, the cylindrical rib 43 abuts against the cover member 10 from the seat back side when the back side mounting member 40 is mounted to the front side mounting member 20. Here, the cylindrical rib 43 corresponds to the "back side abutment portion" of the present invention.

[0045] The cylindrical rib 43 is in linear contact with the cover member 10 from the seat back side in a manner surrounding the connection port 12. The cylindrical rib 43 sandwiches the cover member 10 between the cylindrical rib 43 and the front side ring plate 21. As a result, the front side mounting member 20 and the back side mounting member 40 are more appropriately fixed to the cover member 10. Moreover, it is possible to appropriately seal so that the air passing through the connection port 12 does not leak to the outside. Here, the sandwiching structure of the cover member 10 formed by the front side ring plate 21 and the cylindrical rib 43 is equivalent to the "fixing portion" of the present invention.

[0046] <Blower Housing 50> like Figure 8 As shown in FIG. 1 , the blower housing 50 includes a front housing 51 and a rear housing 52. The front housing 51 includes an opening 51a opened from a central portion thereof. The rear housing 52 includes a receiving portion 52a recessed in a bottomed cylindrical shape toward the seat back side, first through holes 52b formed at four locations on the outer periphery of the rear housing 52, and second through holes 52c formed at four locations around the receiving portion 52a.

[0047] like Fig. 9 As shown, the rear housing 52 is assembled to the front housing 51 from the back side of the seat. Specifically, the pins of the front housing 51 are passed through the second through holes 52c of the rear housing 52 and riveted (riveted portion 51b). Through the above assembly, the blower accommodated in the accommodating portion 52a is maintained so as not to fall off from the accommodating portion 52a. In addition, the rear housing 52 is mounted on the back side mounting component 40 from the back side of the seat. Specifically, screws (not shown) are passed through the first through holes 52b from the back side of the seat and connected to the blower mounting portions 42 of the back side mounting component 40. Thus, the blower housing 50 is mounted on the back side mounting component 40 from the back side of the seat.

[0048] <Assembly of Air Conditioning Flow Path Unit 3> The following describes in detail the assembly steps of the various structures of the air conditioning flow path unit 3. Figure 2 The double-sided tape 30 shown is attached to the front side ring plate 21 of the front side mounting member 20 from the seat back side. The double-sided tape 30 is attached so that the notch 31 is aligned with the rotation limiting rib 23 of the front side mounting member 20. Thus, the double-sided tape 30 is attached so that the front side ring plate 21 does not float due to the rotation limiting rib 23. Next, as shown in FIG. Figure 8 As shown, the front side mounting member 20 is assembled to the cover member 10 from the front side of the seat. Specifically, each hook portion 22 of the front side mounting member 20 is inserted into the connection port 12 and each enlarged diameter hole 13 of the cover member 10 from the front side of the seat. Thus, each hook portion 22 penetrates the cover member 10 and protrudes toward the seat back side.

[0049] And, if Fig. 9As shown in FIG. 1 , the front side mounting member 20 is rotated clockwise in a rearward view. As a result, each folded portion 22b is arranged at a position deviated from each enlarged diameter hole 13. The rotation of the front side mounting member 20 is restricted by the rotation restriction rib 23 of the front side mounting member 20 being locked at the end of the enlarged diameter hole 13. After the above rotation, as shown in FIG. Figure 6 , Figure 7 As shown, the front side ring plate 21 is brought into planar contact with the cover member 10. Thus, the front side ring plate 21 is fixed to the cover member 10 by the double-sided tape 30. In this way, the front side mounting member 20 is assembled to the cover member 10 from the seat front side.

[0050] In addition, if Fig. 9 As shown, the back-side mounting member 40 and the blower housing 50 are assembled with each other. That is, first, the rear housing 52 and the front housing 51 are assembled with each other by the rivet portion 51b. Then, the rear housing 52 assembled with the front housing 51 is mounted to each blower mounting portion 42 of the back-side mounting member 40 using screws. Thus, the blower housing 50 is assembled to the back-side mounting member 40 from the back side of the seat. And, as shown in FIG. Fig.10 As shown, the back side mounting member 40 integrally assembled with the blower housing 50 is mounted to the front side mounting member 20 from the seat back side. Thus, the blower housing 50 is assembled to the cover member 10 via the front side mounting member 20 and the back side mounting member 40.

[0051] Regarding the installation of the back side mounting component 40 to the front side mounting component 20, specifically, as follows Figure 11-13 As shown in FIG. 1 , the back-side mounting member 40 is pressed against the cover member 10 in such a manner that each engaging portion 44 passes through the gap between each hooking portion 22. Furthermore, the back-side mounting member 40 is rotated counterclockwise when viewed from behind. Thus, each engaging portion 44 is inserted between each hooking portion 22 and the cover member 10 and hooked on the folded portion 22b. That is, as shown in FIG. Fig.14 As shown in FIG. 1 , the claw portion 44a formed on the fitting portion 44 is snap-fitted with the folded portion 22b. Thus, the fitting portion 44 is prevented from falling off from the folded portion 22b. In addition, the fitting portion 44 and the folded portion 22b are in contact with each other in the front-rear direction. Thus, the back-side mounting member 40 is mounted on the front-side mounting member 20 in a manner that does not fall off toward the rear of the seat.

[0052] In addition, the folded portion 22b has an inclined push-in surface 22c on the seat front side abutting against the fitting portion 44. The push-in surface 22c pushes the fitting portion 44 in a direction (toward the seat front) that gradually presses against the cover member 10 as the above-mentioned rotational movement proceeds. Figure 7As shown, the cylindrical rib 43 of the back-side mounting component 40 is further pressed against the covering component 10. In addition, by the reaction of the above-mentioned pushing, the folded portion 22b is also pushed back to the rear of the seat by the fitting portion 44. As a result, the front-side ring plate 21 of the front-side mounting component 20 is also further pressed against the covering component 10. As a result, the front-side ring plate 21 and the cylindrical rib 43 can be more appropriately sandwiched between the covering component 10. In this way, the back-side mounting component 40 is mounted on the front-side mounting component 20. And, the various structures of the air conditioning flow path unit 3 are assembled.

[0053] Finally, if Figure 6 , Figure 7 As shown in FIG. 1 , the cover member 10 is covered from the seat back side and bonded to the cushion back surface 2c. Thus, the annular convex portion 15 of the cover member 10 abuts against the cushion back surface 2c. In addition, the front side ring plate 21 abuts against the concave portion 2h of the cushion back surface 2c by being embedded therein. Thus, it is possible to appropriately seal so that the air passing through the ventilation flow path 2d and the connection port 12 does not leak to the outside.

[0054] In summary, the air conditioning flow path unit for a seat according to the first embodiment has the following structure: Hereinafter, the symbols shown in brackets are symbols corresponding to the respective structures shown in the above-mentioned embodiment.

[0055] That is, the air conditioning flow path unit (3) for a seat comprises: a planar covering component (10) having a covering portion (11) and a connecting port (12), wherein the covering portion (11) covers the seat cushion (2) in a manner that constitutes a flow path wall of a concave ventilation flow path (2d) formed on the seat cushion (2), the connecting port (12) is formed in a part of the covering portion (11) and a blower is flow-path-connected to the connecting port (12) from the back side of the seat; a front side mounting component (20) having a front side abutting portion (21) abutting against the covering component (10) from the front side of the seat; a fixing portion fixing the front side mounting component (20) to the covering component (10); and a back side mounting component (40) having a blower mounting portion (42) for mounting the blower and arranged on the back side of the seat of the covering component (10). One of the front side mounting component (20) and the back side mounting component (40) has a protrusion (22) that protrudes toward the other of the front side mounting component (20) and the back side mounting component (40) through a connection port (12), and the other has an engaging portion (44) that engages with the protrusion (22) by relative rotation around the connection port (12) along the covering surface of the covering component (10) relative to the protrusion (22), and the back side mounting component (40) is mounted on the front side mounting component (20) by the engagement of the engaging portion (44).

[0056] According to the above structure, the blower can be assembled to the cover member (10) having the connection port (12) via the front side mounting member (20) and the rear side mounting member (40), thereby making it difficult for the blower to be displaced relative to the cover member (10).

[0057] In addition, the back-side mounting component (40) has a back-side abutment portion (43) that abuts against the covering component (10) from the back side of the seat and sandwiches the covering component (10) between the back-side abutment portion (43) and the front-side abutment portion (21). The fixing portion is a sandwiching structure of the covering component (10) formed by the front-side abutment portion (21) and the back-side abutment portion (43). According to the above structure, the front-side mounting component (20) and the back-side mounting component (40) can be appropriately fixed to the covering component (10). As a result, the positional deviation of the blower relative to the covering component (10) can be more appropriately suppressed.

[0058] In addition, the protruding portion (22) is formed as a hook portion (22), which protrudes from the front side mounting component (20) through the connecting port (12) toward the back side of the seat, and extends outward in the diameter direction of the connecting port (12) in a folded shape at the front end of the protrusion, and the engaging portion (44) formed on the back side mounting component (40) engages with the hook portion (22) along with the snap fit in the rotation direction. According to the above structure, the engaging portion (44) is assembled to the hook portion (22) in a state of preventing separation by engaging with the snap fit. In addition, by the engagement portion (44) achieved by the folding back of the hook portion (22) and the hook portion (22) in the seat front and back directions, the front side mounting component (20) and the back side mounting component (40) are assembled so as not to fall off from the covering component (10) in the seat front and back directions.

[0059] In addition, a hook portion (22) formed on the front side mounting component (20) is inserted in a manner protruding from the connection port (12) and the enlarged diameter hole (13) toward the back side of the seat, and the enlarged diameter hole (13) is formed in an enlarged diameter shape from a part of the connection port (12). The hook portion (22) is arranged at a position passing through the connection port (12) and deviating from the enlarged diameter hole (13) by the rotation of the front side mounting component (20). By this arrangement, the fitting portion (44) is fitted in a manner of being clamped between the hook portion (22) and the covering component (10). According to the above structure, the fitting portion (44) is fitted in a manner of being clamped between the hook portion (22) and the covering component (10). As a result, the front side mounting component (20) and the back side mounting component (40) can be assembled relative to the covering component (10) without shaking.

[0060] In addition, the hook portion (22) and / or the fitting portion (44) has an inclined push-in surface (22c), and the push-in surface (22c) pushes the fitting portion (44) in a direction gradually pressed against the covering member (10) as the rotational movement of the fitting portion (44) and the hook portion (22) progresses. According to the above structure, as the rotational movement of the fitting portion (44) progresses, the front side mounting component (20) and the back side mounting component (40) are respectively pressed against the covering member (10). As a result, the front side mounting component (20) and the back side mounting component (40) are mounted on the covering member (10) in a manner that appropriately sandwiches the covering member (10). For example, if the inclined push-in surface (22c) is set on the hook portion (22), the insertion port of the hook portion (22) for inserting the fitting portion (44) can be enlarged, making it easier to insert the fitting portion (44). Furthermore, if the push-in surface (22c) is set on the fitting portion (44), the front end of the fitting portion (44) in the rotation direction can be made thinner, thereby facilitating the insertion of the fitting portion (44) into the insertion opening of the hook portion (22).

[0061] In addition, the front side contact part (21) and the back side contact part (43) contact the cover member (10) in a manner surrounding the connection port (12). According to the above structure, it is possible to appropriately seal the connection port (12) so that air passing through the connection port (12) does not leak to the outside.

[0062] In addition, the front side abutting portion (21) is a front side ring plate (21) that abuts in a planar manner to surround the connection port (12) of the covering component (10), and the back side abutting portion (43) is a cylindrical rib (43) that protrudes in a cylindrical manner from the back side mounting component (40) to surround the connection port (12) of the covering component (10). According to the above structure, the cylindrical rib (43) clamps the covering component (10) in a linear contact manner with the planar front side ring plate (21). As a result, the front side abutting portion (21) and the back side abutting portion (43) can be appropriately clamped to the covering component (10), and the sealing performance of the front side abutting portion (21) and the back side abutting portion (43) to the covering component (10) can be ensured at the same time.

[0063] <Other Implementation Methods> As mentioned above, although one embodiment of the present invention has been described, the present invention can be implemented in various forms other than the above embodiment.

[0064] 1. In addition to the backrest pad, the covering member can also be a structure that covers the seat cushion pad. Fig.16In the seat pad 201 shown, the covering member 210 has a covering portion 211 that covers the front side of the seat along the groove formed on the pad surface 202b of the seat cushion 202. The covering portion 211 constitutes the bottom surface 202e and the side surface 202f of the ventilation flow path 202d. The covering member 210 has a connection port 212 that opens from a part of the covering portion 211 to the back side of the seat. The blower is connected to the connection port 212 from the back side of the seat through the front side mounting member 20 and the back side mounting member 40. In this case, the covering member covers the seat pad from the front side of the seat.

[0065] 2. The back-side mounting member may also be structured without a back-side contact portion that contacts the cover member from the back side of the seat. Fig.15 In the air conditioning flow path unit 103 shown, the front side mounting component 120 has a front side ring plate 121 that abuts against the covering component 110 from the front side of the seat and a hook portion 122 that protrudes toward the back side of the seat through the connection port 112. The hook portion 122 has an engaging groove 122a that can be mounted on the back side mounting component 140. The back side mounting component 140 has an engaging portion 144 that is inserted into the engaging groove 122a from the back side of the seat and engaged by rotating around the connection port 112. In this way, the back side mounting component can also be a structure that is mounted on the front side mounting component without abutting against the covering component from the back side of the seat. In addition, in the case of the above structure, it is preferred that the front side mounting component 120 is fixed to the covering component by a fixing portion such as a double-sided tape or an adhesive.

[0066] 3. Fixing Part In the embodiment, the sandwich structure formed by the front side contact part and the back side contact part is shown, but instead, for example, adhesives such as double-sided tape and adhesives, fasteners such as bolts, nuts and screws may be used.

[0067] 4. The front side abutting portion and the back side abutting portion illustrate a structure in which the covering member is sandwiched by abutting against each other. However, the front side abutting portion and the back side abutting portion may also be structures in which the covering member is not sandwiched but abutted against each other. Specifically, for example, a structure in which the cylindrical rib (back side abutting portion) abuts against a position that deviates radially outward from the front side ring plate (front side abutting portion). In addition, for example, a structure in which the front side abutting portion abuts against the left and right positions of the connection port from the front side of the seat, and the back side abutting portion abuts against the upper and lower positions of the connection port from the back side of the seat, etc., and a structure in which the front side abutting portion and the back side abutting portion abut against each other at positions staggered in the circumferential direction. In addition, the front side abutting portion and the back side abutting portion may also be structures in which they do not surround the connection port but only abut against a part of the connection port. The front side abutting portion and the back side abutting portion may also be structures in which they are in surface contact or line contact with each other relative to the covering member.

[0068] 5. The protrusion may be formed on the back mounting member and protrude toward the front side of the seat through the connection port. The rotational engagement of the protrusion and the engagement member is shown in the embodiment as a structure in which the member with the engagement member rotates relative to the member with the protrusion. However, the engagement may be achieved by rotating the member with the protrusion, or by rotating the two members separately. The hook may be extended in a folded shape toward the inside of the diameter direction of the connection port. The hook may be other than the folded shape, for example Fig.15 The groove shape shown in the figure may be any shape as long as it is a structure that enables the other fitting parts to be rotatably fitted. The folded-back part may also be a structure arranged so as to overlap with the enlarged diameter hole.

[0069] 6. A structure in which the push-in surface is formed on the surface of the hook portion that abuts against the fitting portion is illustrated. However, it may also be formed on the surface of the fitting portion that abuts against the hook portion. In this case, the fitting portion has a push-in surface whose width gradually tapers from the base end of the rotational movement to the front end. In addition, the push-in surface may also be formed on the surface of the fitting portion that abuts against the covering member. In this case, the fitting portion also has a push-in surface whose width gradually tapers from the base end of the rotational movement to the front end. In addition, the fitting portion may be a structure in which the push-in surface is pushed in a direction gradually pressed against the covering member as it rotates, or it may be a structure that does not directly abut against the covering member. Description of Reference Numerals

[0070] 1 Seat back

[0071] 2 Backrest padding (seat padding)

[0072] 2a Gasket body

[0073] 2b Pad surface

[0074] 2c pad back

[0075] 2d air flow path

[0076] 2e bottom surface

[0077] 2f side

[0078] 2g vent

[0079] 2h concave part

[0080] 2i flow path base

[0081] 2j flow path front part

[0082] 3 Air conditioning flow unit (air conditioning flow unit for seats)

[0083] 4. Install the components

[0084] 10 Covering parts

[0085] 11 Covering

[0086] 12 Connection ports

[0087] 13 Expanded hole

[0088] 14 ribs

[0089] 15 annular convex part

[0090] 20Front side mounting parts

[0091] 21 front side ring plate (front side contact portion)

[0092] 21a Front side ring hole

[0093] 22 hook portion (protrusion)

[0094] 22a cylindrical part

[0095] 22b Folding part

[0096] 22c push surface

[0097] 23 Rotation limiting rib

[0098] 30 double-sided tape

[0099] 31 Gap

[0100] 40 Back side mounting parts

[0101] 41 Dorsal ring plate

[0102] 41a Dorsal annular aperture

[0103] 42 Blower Installation

[0104] 43 cylindrical rib (back side contact portion)

[0105] 44 Chimera Department

[0106] 44a Claw

[0107] 44b Rotation limiting portion

[0108] 50 Blower housing

[0109] 51 front housing

[0110] 51a opening

[0111] 51b Riveting part

[0112] 52 rear housing

[0113] 52a Containment Division

[0114] 52b first through hole

[0115] 52c Second through hole

[0116] 103 air conditioning flow unit

[0117] 110 Covering parts

[0118] 112 connection port

[0119] 120 front side mounting parts

[0120] 121 front side ring plate (front side abutment portion)

[0121] 122 hook portion (protrusion)

[0122] 122a Fitting groove

[0123] 140 back mounting parts

[0124] 144 Chimera Department

[0125] 201 Seat Cushion

[0126] 202 cushion pad (seat pad)

[0127] 202b pad surface

[0128] 202d air flow path

[0129] 202e bottom

[0130] 202f side view

[0131] 202g vents

[0132] 210 Covering parts

[0133] 211 Coverage Department

[0134] 212 connection port.

Claims

1. An air conditioning flow path unit for a seat, comprising: A planar covering member having a covering portion and a connection port, wherein the covering portion covers the seat pad in a manner constituting a flow path wall of a concave ventilation flow path formed in the seat pad, the connection port being formed in a portion of the covering portion, and the blower being flow-path-connected to the connection port from the seat back side; A front side mounting member having a front side contact portion that contacts the cover member from the front side of the seat; a fixing portion that fixes the front side mounting component to the covering component; and a back-side mounting member having a blower mounting portion for mounting the blower and provided on the seat back side of the cover member, One of the front side mounting component and the back side mounting component has a protrusion that protrudes toward the other of the front side mounting component and the back side mounting component through the connecting port, and the other has a fitting portion, which is fitted into the protrusion by relative rotation along the covering surface of the covering component around the connecting port relative to the protrusion, and the back side mounting component is mounted on the front side mounting component through the fitting of the fitting portion.

2. The air conditioning flow path unit for a seat according to claim 1, wherein: The back-side mounting member has a back-side abutting portion that abuts against the cover member from the back side of the seat and sandwiches the cover member between the back-side abutting portion and the front-side abutting portion. The fixing portion is a sandwich structure of the covering member formed by the front side contact portion and the rear side contact portion.

3. The air conditioning flow path unit for a seat according to claim 1 or 2, wherein: The protrusion is formed as a hook portion, which protrudes from the front side mounting member through the connection port toward the seat back side, and extends outward in a folded shape at the protruding front end toward the outer side in the diameter direction of the connection port. The fitting portion formed on the rear-side mounting member is fitted to the hook portion with snap fit in a rotational direction.

4. The air conditioning flow path unit for a seat according to claim 3, wherein: The hook portion formed on the front side mounting component is inserted in a manner of protruding from the connecting port and the enlarged diameter hole toward the seat back side, the enlarged diameter hole is formed in an enlarged diameter shape from a part of the connecting port, and the hook portion is arranged at a position passing through the connecting port and deviating from the enlarged diameter hole by the rotation of the front side mounting component. Through this arrangement, the fitting portion is fitted in a manner of being clamped between the hook portion and the covering component.

5. The air conditioning flow path unit for a seat according to claim 3, wherein: The hook portion and / or the fitting portion has an inclined pushing surface that pushes the fitting portion in a direction in which the fitting portion is gradually pressed against the cover member as the rotational movement for fitting the fitting portion with the hook portion proceeds.

6. The air conditioning flow path unit for a seat according to claim 2, wherein: The front side contact portion and the rear side contact portion contact the cover member so as to surround the connection port.

7. The air conditioning flow path unit for a seat according to claim 6, wherein: The front side contact portion is a front side ring plate that contacts in a planar manner so as to surround the periphery of the connection port of the cover member. The rear-side contact portion is a cylindrical rib that protrudes in a cylindrical shape from the rear-side mounting member so as to surround the connection port of the cover member.

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