JP6587532B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat, and more particularly to a vehicle seat provided with a blower structure.

  As a configuration in which a blower structure is provided in a vehicle seat, Japanese Patent Application Laid-Open No. 2011-130977 (Patent Document 1) includes a pad in which a ventilation groove is formed, a lid member that is attached to the pad and covers the ventilation groove, A vehicle seat having a duct communicating with a ventilation groove through a lid hole formed in the lid member is described. And it is described that a duct has a flange part attached to a pad, pressing the cover hole outer peripheral part of the cover member located in the outer periphery of a cover hole to a pad.

JP 2011-130977 A

  The pad of the vehicle seat is elastic, and when the occupant sits down, the occupant's weight is applied and it is compressed and deformed. At this time, the ventilation groove formed in the pad as described in Patent Document 1 is also deformed. Depending on the degree of deformation, the ventilation groove may be crushed and air permeability may not be ensured.

  As a result, even if the wind continues to be sent from the air blower installed on the side opposite to the side on which the passenger is seated with respect to the pad, the air sent from the air blower does not reach the passenger side via the pad. Or even if it arrives, the air volume may be significantly reduced.

  Therefore, in the present invention, even when the occupant is seated on the vehicle seat, the air sent from the blower can be reliably blown to the side of the pad on which the occupant is seated. I will provide a.

In order to solve the above-described problems, in the present invention, in a vehicle seat including a seat cushion, a seat back, and a headrest, the seat back includes a pad, a seat cover that covers the surface of the pad, a blower, A back panel formed of a resin in which a flow path that is a passage for air sent from the blower while supporting the back surface of the pad is mounted and the pad and the back panel are supported. And an elastic body that connects the back panel and the frame .

  According to the present invention, even when the passenger is seated on the vehicle seat, the air sent from the blower can be reliably blown to the side of the pad on which the passenger is seated. It became possible to prevent heat from accumulating.

It is a perspective view which shows the external appearance of the vehicle seat which concerns on this invention. It is a perspective view of the seat back which shows the state where the seat cover was removed about the seat back of the vehicular seat concerning Example 1 of the present invention. It is a perspective view of the frame of a seat back which shows the state where the pad was removed and the frame was exposed about the seat back of the vehicular seat concerning Example 1 of the present invention. 1 is a front view of a back plate in a state where a blower for a seat back of a vehicle seat according to a first embodiment of the present invention is mounted. FIG. 5 is a back plate in a state in which the blower for the seat back of the vehicle seat according to the first embodiment of the present invention is mounted, and is a cross-sectional view taken along the line B-B in FIG. 4. It is an AA cross section arrow view in Drawing 1 of a seat back of a vehicular seat concerning Example 1 of the present invention. It is a front view of the modification of the backplate of the state which mounted | wore with the blower of the seat back of the vehicle seat which concerns on Example 1 of this invention. It is a front view of the backplate of the state which mounted | wore the seat back blower of the vehicle seat which concerns on Example 2 of this invention. FIG. 9 is a back plate in a state in which a blower for a seat back of a vehicle seat according to a second embodiment of the present invention is mounted, and is a cross-sectional view taken along the line CC in FIG. 8. It is a backplate of the seat back of the vehicle seat which concerns on Example 2 of this invention, Comprising: It is the DD sectional view taken on the line of FIG. It is a front view of the back surface side of the backplate of the seat back of the vehicle seat which concerns on Example 2 of this invention. It is an AA cross section arrow view in Drawing 1 of a seat back of a vehicular seat concerning Example 2 of the present invention. FIG. 10 is a modified example of the back plate in a state in which the blower for the seat back of the vehicle seat according to the second embodiment of the present invention is mounted, and is a cross-sectional view corresponding to the CC cross section of FIG. 8. It is another modification of the backplate of the state which mounted | wore with the seat back blower of the vehicle seat which concerns on Example 2 of this invention, Comprising: It is an arrow line view of the cross section corresponded in CC cross section of FIG. .

  In the vehicle seat, the air sent from the back side of the seat by the blower is configured to be sent out from the pad to the surface of the seat through a flow path formed outside the seat pad. The air flow path can be secured even if the pad is deformed by the passenger sitting on the seat.

  Components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiments, and the repetitive description thereof is omitted in principle. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a basic configuration of a vehicle seat 1 targeted in the present invention. The vehicle seat 1 includes a seat cushion 2 on which a passenger sits, a seat back 3 on which a passenger sitting on the seat cushion leans back, a headrest 4 that supports the head of the passenger, and a side support 5.

  FIG. 2 is a view showing a state in which the pad 31 formed of urethane or the like is exposed by removing the seat cover that covers the surface of the seat back 3. A large number of ventilation holes 32 are formed in the pad 31.

  FIG. 3 shows a state in which the pad 31 is removed from the state of FIG. 2, and the back panel 34 is supported on the frame 33 by an elastic body 35 such as a spring. The back panel 34 is made of resin and does not deform greatly even when an external force is applied.

  FIG. 4 shows a state in which the back panel 34 is viewed from the back side in the state of FIG. The blower 41 is fixed to the upper part of the back panel 34, and the blower port 42 of the blower 41 is fitted and fixed to the blower connection port 341 of the back panel 34.

  FIG. 5 shows a BB cross section of the back panel 34 in FIG. The back panel 34 has a bag-like double structure with a base portion 342 and a cover portion 343, and a blower 41 is attached to the upper blower connection port 341. The back panel 34 is formed by blow molding using a resin. The base portion 342 is supported on the frame 33 by an elastic body 35 such as a spring.

  The base portion 342 has a plurality of exhaust ports 344 for discharging air. A boss 345 is formed around the exhaust port 344. The cover portion 343 is connected to the base portion 342 at the periphery, and forms a closed space between the base portion 342 except for the blower connection port 341 and the exhaust port 344.

  FIG. 6 is a cross-sectional view taken along the line AA of FIG. The state supported by the frame 33 is shown. The surface of the pad 31 is covered with a seat cover 310 having air permeability. Actually, the seat cover 310 is divided into a plurality of members and covers the surface of the pad 31, but is shown here in a simplified manner.

  When the blower 41 is operated in the state shown in FIG. 6, air flows from the blower 41 through the blower connection port 341 to the inside of the back panel, that is, the space formed by the base portion 342 and the cover portion 343. It is sent. The space formed by the base portion 342 and the cover portion 343 forms a flow path for the air that has been sent.

  Unlike the configuration shown in FIGS. 4 to 6, when the blower 41 is fixed to a portion other than the back panel 34, the position of the back panel 34 changes due to the passenger leaning against the back seat 3. Therefore, flexibility is required for a member connecting the blower 41 and the air flow path formed in the back panel 34, and for example, a connection member having a bellows structure needs to be used.

  On the other hand, in the present embodiment, the structure in which the blower 41 is directly attached to the back panel 34 is a case where the position of the back panel 34 is changed by the passenger leaning against the back seat 3. However, the positional relationship between the blower 41 and the air flow path formed in the back panel 34 is always kept constant. Moreover, the member which connects the air flow path formed in the air blower 41 and the back panel 34 becomes unnecessary, and a number of parts can be reduced. Further, since a connection member such as a duct that becomes a blowing resistance is not required between the blower 41 and the back panel 34, the amount of air sent to the surface of the back sheet 3 can be secured.

  The air sent from the blower 41 passes through this flow path and is discharged from the exhaust port 344 to the outside through the sheet cover 310 that covers the surface of the hole from the vent hole 32 formed in the pad 31. At this time, the heat of the passenger's back seated on the seat 1 and seated back on the seat back 3 and its surroundings are removed. Thereby, it is possible to prevent heat from being accumulated in the seat back 3, and to increase the refreshing feeling of the passenger seated back on the seat back 3.

  In the configuration as shown in FIG. 6, when a passenger seated on the seat 1 is seated on the seat back 3, the elastic pad 31 is compressed and deformed. As a result, the ventilation hole 32 formed in the pad 31 is also deformed substantially in the central axis direction of the hole 32.

  On the other hand, since the base portion 342 of the back panel 34 is supported by the frame 33 with an elastic body 35 such as a spring, even if the occupant seated on the seat 1 leans back on the seat back 3 and the pad 31 is deformed. The cover portion 343 is hardly applied with force. Therefore, the air flow path formed by the base part 342 and the cover part 343 is hardly deformed, and the flow path formed by the base part 342 and the cover part 343 even when the passenger leans back on the seat back 3. Is secured.

  As a result, the air sent out from the blower 41 through the blower connection port 341 passes through the flow path formed by the base portion 342 and the cover portion 343 and then passes through the vent hole 32 to the surface of the seat back 3. Therefore, it is possible to continue to sit in a comfortable state without impairing the refreshing feeling of the passenger who is stably blown out and rests on the seat back 3.

  Further, since the boss 345 formed in the base portion 342 is loosely fitted in the ventilation hole 32 formed in the pad 31, the exhaust hole 344 formed in the base portion 342 and the ventilation hole formed in the pad 31. The position 32 is prevented from shifting, and air can be blown out stably from the surface of the seat back 3.

  According to the present embodiment, since the blower 41 is directly attached to the blower connection port 341 of the back panel 34, a new member for connecting the back panel 34 and the blower 41 is not required. Compared to technology, the configuration could be simplified.

  Further, according to the present embodiment, the air sent out from the blower 41 can be stably discharged from the surface of the seat back 3, so that even if the passenger continues to sit on the vehicle seat 1 for a long time, A refreshing feeling can be maintained for a long time. Further, the air sent from the blower 41 can be stably discharged from the surface of the seat back 3 regardless of the weight of the passenger.

  The back panel 34 shown in FIG. 4 has a configuration in which one large space is formed by the base portion 342 and the cover portion 343 and is used as a flow path. However, as shown in FIG. You may make it the shape which partitions off space for every 344 row | line | column. That is, as shown in FIG. 5, the space formed by the base portion 342 and the cover portion 343 is formed so that the cover portion 343-1 is shaped as shown in FIG. -11, 343-12, 343-13 may be formed.

  Thus, by forming the convex portions 343-11, 343-12, and 343-13, the bending strength of the entire cover portion 343-1 can be increased. As a result, even when the passenger seated on the seat 1 is back on the seat back 3 and the pad 31 is deformed, the amount of deformation of the cover portion 343-1 can be further reduced, and the base portion 342 A space formed by the cover part 343-1 can be secured.

  In the present embodiment, the configuration of the seat back 3 has been described, but a similar configuration can be provided for the seat cushion 2.

  In the first embodiment, the back panel 34 has a structure in which a space is formed by the base portion 342 and the cover portion 342 to form an air flow path. However, in this embodiment, the base portion is not formed and the base portion 342 is not formed. The main body of the back panel 34, which is the portion 342, is formed into an uneven shape to form an air flow path.

  In FIG. 8, the front view of the state by which the air blower 41 was mounted | worn with the back panel 60 which concerns on a present Example is shown. 9 shows a cross-sectional view taken along the line CC in FIG. 8, and FIG. 10 shows a cross-sectional view taken along the line DD. FIG. 11 shows a view of the back panel 60 shown in FIG.

  A blower connection port 61 is formed in the back panel 60, and a blower port 42 of the blower 41 is fitted and fixed to the blower connection port 61. Further, as shown in FIG. 8, the back panel 60 has a plurality of convex portions 62 connected to the blower connection port 61. The cross section of the convex portion 62 has a shape as shown in FIG. 10, and a protrusion 63 is formed on the surface of the back panel 60 opposite to the convex portion 62. The protrusion 63 is formed around the convex portion 62 as shown in FIG.

  FIG. 12 shows a cross section of the seat back 3 of the present embodiment corresponding to the AA cross section of FIG. With the back panel 60 pressed against the pad 31, the protrusion 63 formed on the back panel 60 is in close contact with the pad 31 to form a closed space between the convex portion 62 of the back panel 60 and the surface of the pad 31. The ventilation path of the air sent out from 41 is formed. The back panel 60 of the present embodiment does not have the exhaust ports 344 corresponding to each of the ventilation holes 32 formed in the pad 31 as described in the first embodiment, and a plurality of ventilation lines arranged in the same row. A ventilation path is formed by the convex portion 62 on the hole 32 for use.

  That is, the air sent out from the blower 41 in the state shown in FIG. 12 is formed in the pad 31 through a flow path through a closed space formed by the convex portion 62 of the back panel 60 and the surface of the pad 31. The air is discharged from the vent hole 32 through the seat cover 310 covering the surface of the hole. At this time, the heat of the passenger's back seated on the seat 1 and backed by the seat back 3 and the surrounding area are removed. Thereby, it is possible to prevent heat from being accumulated in the seat back 3, and to increase the refreshing feeling of the passenger seated back on the seat back 3.

  In the configuration as shown in FIG. 12, when a passenger sitting on the seat 1 is seated on the seat back 3, the elastic pad 31 is compressed and deformed. As a result, the ventilation hole 32 formed in the pad 31 is also deformed substantially in the central axis direction of the hole 32.

  On the other hand, as described in the first embodiment, the back panel 60 is supported by the frame 33 by the elastic body 35 such as a spring, so that the passenger seated on the seat 1 leans back against the seat back 3 and the pad 31. Even if is deformed, almost no force is applied to the back panel 60. Therefore, the air flow path formed by the convex portion 62 of the back panel 60 and the surface of the pad 31 is hardly deformed, and the flow path is secured even when the passenger leans back on the seat back 3.

  As a result, the air sent out from the blower 41 through the blower connection port 61 passes through the ventilation hole 32 via the flow path formed by the convex portion 62 of the back panel 60 and the surface of the pad 31. It is possible to continue to sit in a comfortable state without impairing the refreshing feeling of a passenger who is stably blown to the front side of the surface of the seat back 3 and is backed by the seat back 3.

  According to the present embodiment, since the blower 41 is directly attached to the blower connection port 61 of the back panel 60, a new member for connecting the back panel 60 and the blower 41 is not required. Compared to technology, the configuration could be simplified.

  Further, according to the present embodiment, the air sent out from the blower 41 can be stably discharged from the surface of the seat back 3, so that even if the passenger continues to sit on the vehicle seat 1 for a long time, A refreshing feeling can be maintained for a long time. Further, the air sent from the blower 41 can be stably discharged from the surface of the seat back 3 regardless of the weight of the passenger.

  In addition, although the structure which improves the airtightness of the ventilation path formed by the protrusion 62 of the back panel 60 and the pad 31 by pressing the protrusion 63 formed on the back panel 60 against the pad 31 has been described, It is not limited to.

  For example, as illustrated in FIG. 13, the back panel 70 may have a protrusion 63 as illustrated in FIG. 9, and the peripheral portion 71 of the back panel 70 may be slightly bent outward (left side in FIG. 13). With the structure as shown in FIG. 13, when the back panel 70 is pressed against the pad 31, a closed space across the front surface of the back panel 70 between the peripheral portion 71 of the back panel 70 and the pad 31. Is formed. The air sent out from the blower 41 to the closed space passes through the ventilation hole 32 formed in the pad 31 using the space formed between the convex portion 71 and the pad 31 as a flow path, and is on the surface of the seat back 3. Can be stably blown out to the side.

  As shown in FIG. 14, the peripheral portion of the back panel 80 may be a bellows structure 81. With the structure shown in FIG. 14, when the back panel 80 is pressed against the pad 31, the front surface of the back panel 80 is interposed between the bellows structure 81 formed in the peripheral portion of the back panel 80 and the pad 31. A closed space is formed. The air sent out from the blower 41 to the closed space passes through the hole 32 formed in the pad 31 using the space formed between the convex portion 81 and the pad 31 as a flow path, and is on the surface of the seat back 3. Can be stably blown out to the side.

  In the present embodiment, the configuration of the seat back 3 has been described, but a similar configuration can be provided for the seat cushion 2.

  As mentioned above, although the invention made by the present inventor has been specifically described based on the embodiments, it is needless to say that the present invention is not limited to the above embodiments and can be variously modified without departing from the gist thereof. Yes. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle seat 2 ... Seat cushion 3 ... Seat back 4 ... Headrest 5 ... Side support 31 ... Pad 32 ... Ventilation hole 33 ... Frame 34, 34 -1, 60, 70, 80 ... back panel 41 ... blower 62, 72, 82 ... convex part 342 ... base part 343 ... cover part 344 ... exhaust port 345 ... ·boss

Claims (9)

A vehicle seat including a seat cushion, a seat back, and a headrest,
The seat back is
Pad,
A sheet cover covering the surface of the pad;
A blower,
A back panel formed of a resin in which a flow path that is a passage for air sent from the blower while supporting the back surface of the pad is mounted inside the blower,
A frame that supports the pad and the back panel ;
A vehicle seat comprising: an elastic body that connects the back panel and the frame . The vehicle seat according to claim 1, wherein the flow path is formed inside the back panel or between the back panel and the pad. The vehicle seat according to claim 1 or 2, a vehicle seat, characterized in that the said pad has vent hole is formed at a position overlapping with the passage formed in the back panel. The vehicle seat according to claim 3, wherein the flow path is formed in the pad of the back panel is formed into a bag shape, the flow path in which the bag shape formed of said back panel through A vehicle seat characterized in that an exhaust port is formed at a position facing the air hole. The vehicle seat according to claim 4, wherein a boss is formed around a side of the exhaust port formed in the back panel that contacts the pad, and the boss is fitted into a vent hole of the pad. A vehicle seat characterized by comprising: 4. The vehicle seat according to claim 3, wherein the flow path is formed between a portion formed by forming the back panel into a concavo-convex shape and the pad. 5. The vehicle seat according to claim 6, protrudes to the side of the pad around the flow path on the side in contact with the pad portion forming the flow path between the pads of the back panel A vehicle seat characterized in that a protrusion is formed. The vehicle seat according to claim 6, wherein a peripheral portion of the back panel protrudes toward the pad as compared with a portion other than the peripheral portion of the back panel. The vehicle seat according to claim 6, wherein a peripheral portion of the back panel has a bellows structure.

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