Vehicle seats

Abstract

To obtain a vehicle seat that can suppress the formation of gaps between the periphery of the ventilation holes and the air conditioner. [Solution] The vehicle seat 12 is part of the seat back 16 that supports the body of the seated occupant, and is equipped with a back pad 22 having a ventilation hole 22A that connects the seated occupant side and the side opposite the seated occupant. The vehicle seat 12 is also equipped with an air conditioner 10 that is provided along the back pad 22 on the side opposite the seated occupant and performs at least one of the following: drawing in air and blowing it out through the ventilation hole 22A. Leak-stopping protrusions 22C are provided around the ventilation hole 22A in the back pad 22. These leak-stopping protrusions 22C are provided so as to surround the ventilation hole 22A and protrude toward the air conditioner 10 side.

Description

Technical Field

[0001] The present invention relates to a vehicle seat.

Background Art

[0002] Patent Document 1 below discloses a vehicle seat capable of heating and cooling a seated occupant. In the vehicle seat described in this document, warm air or cold air supplied from the vehicle air conditioner flows out to the seated occupant side through the ventilation holes formed in the seat pad, thereby enabling heating and cooling of the seated occupant.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a configuration where an air conditioner that sucks in and blows out air is provided along the seat pad, if a gap occurs between the peripheral edge of the ventilation hole and the air conditioner, it is conceivable that air will leak from the gap.

[0005] In consideration of the above facts, an object of the present invention is to obtain a vehicle seat capable of suppressing the occurrence of a gap between the peripheral edge of the ventilation hole and the air conditioner.

Means for Solving the Problems

[0006] A vehicle seat according to the first embodiment comprises a seat pad that constitutes part of an occupant support portion that supports the body of a seated occupant and has ventilation holes formed therein that communicate the seated occupant side with the side opposite to the seated occupant; an air conditioner provided along the seat pad on the side opposite to the seated occupant and performing at least one of drawing in air and blowing it out through the ventilation holes; and a leak-stopping projection provided around the ventilation holes in the seat pad so as to surround the ventilation holes and projecting toward the air conditioner side.

[0007] In the first embodiment of the vehicle seat, when the air conditioner is operated, at least one of air is drawn in and blown out through the ventilation holes formed in the seat pad. Here, the seat pad is provided with a leak-stopping projection. This leak-stopping projection is provided around the ventilation holes in the seat pad so as to surround them and protrudes toward the air conditioner. In this configuration, the tip of the leak-stopping projection in the direction of protrusion can be easily brought into contact with the air conditioner. This makes it possible to suppress the formation of a gap between the periphery of the ventilation holes in the seat pad and the air conditioner.

[0008] In the second embodiment of the vehicle seat, the height of the leak-stopping protrusion relative to the portion of the seat pad surrounding the leak-stopping protrusion is set to 0.5 mm to 1.5 mm.

[0009] In the vehicle seat of the second embodiment, by setting the protrusion height of the leak-stopping protrusion within the above range, it is possible to suppress the protrusion height of the leak-stopping protrusion from becoming too high while also suppressing the formation of a gap between the peripheral edge of the ventilation hole in the seat pad and the air conditioner.

[0010] A third embodiment of a vehicle seat is a vehicle seat of the first or second embodiment in which the air conditioner is configured to include a ventilation bag through which air passes, and the ventilation bag is attached to the side of the seat pad opposite to the seated occupant.

[0011] In the third embodiment of the vehicle seat, the ventilation bag is attached to the side of the seat pad opposite to the seated occupant, making it easier to bring the tip of the leak-stopping projection in the direction of protrusion into contact with the ventilation bag. This prevents gaps from forming between the periphery of the ventilation holes in the seat pad and the ventilation bag. [Effects of the Invention]

[0012] The vehicle seat according to the present invention has the excellent effect of being able to suppress the formation of gaps between the periphery of the ventilation holes and the air conditioner. [Brief explanation of the drawing]

[0013] [Figure 1] This is a front view showing a vehicle seat. [Figure 2] This is a perspective view of the air conditioner from a diagonal front angle. [Figure 3] This is a perspective view of the air conditioner from the rear at an angle. [Figure 4] This is a perspective view of the area of ​​the back pad where ventilation holes are formed, seen from a diagonal rearward angle. [Figure 5] Figure 4 is a cross-sectional perspective view showing the back pad cut along the line 5-5 shown. [Modes for carrying out the invention]

[0014] A vehicle seat 12 equipped with an air conditioner 10 according to an embodiment of the present invention will be described with reference to Figures 1 to 5. In the figures, arrow FR indicates the front side of the seat, arrow UP indicates the upper side of the seat, arrow RH indicates the right side in the seat width direction, and arrow LH indicates the left side in the seat width direction. Furthermore, in the following description, unless otherwise specified, when the front / rear, up / down, and left / right directions are indicated, they refer to the front / rear direction of the seat, the up / down direction of the seat, and the left / right direction in the seat width direction.

[0015] As shown in Figure 1, the vehicle seat 12 of this embodiment includes a seat cushion 14 that supports the seated occupant's buttocks from below, a seat back 16 that supports the seated occupant's back from the rear, and a headrest 18 that supports the seated occupant's head from the rear. The seat cushion 14, seat back 16, and headrest 18 constitute an occupant support section that supports the seated occupant's body. The vehicle seat 12 also includes an air conditioner 10 that draws in air from the back of the seated occupant.

[0016] The seat cushion 14 is composed of a cushion frame that constitutes the framework of the seat cushion 14, and a cushion pad 20 that serves as a seat pad and is attached to the cushion frame. The surface of the cushion pad 20 facing the seated occupant is covered with trim.

[0017] The seat back 16 is composed of a back frame that constitutes the skeleton of the seat back 16 and a back pad 22 that serves as a seat pad attached to the back frame. The surface of the back pad 22 facing the seated occupant is covered with trim. Note that the trim covering the back pad 22 is not shown in Figure 1. The back pad 22 has a plurality of ventilation holes 22A that penetrate the back pad 22 in the front-rear direction. In this embodiment, the shape of the six ventilation holes 22A located on both sides in the left-right direction, when viewed from the front, is an ellipse with the vertical direction as its longitudinal direction. The shape of the four ventilation holes 22A located in the center in the left-right direction, when viewed from the front, is an ellipse with the horizontal direction as its longitudinal direction.

[0018] As shown in FIGS. 1 to 3, an air conditioner 10 is provided inside the seat back 16 and on the rear side of the back pad 22. By operating this air conditioner 10, it is possible to suck the air on the back side of the seated occupant through a plurality of ventilation holes 22A formed in the back pad 22. Note that, by operating the air conditioner 10, a configuration in which air can be blown toward the back side of the seated occupant through a plurality of ventilation holes 22A formed in the back pad 22 can also be adopted.

[0019] As shown in FIGS. 2 and 3, the air conditioner 10 includes a blower 24 and a ventilation bag 26 to which air from the blower 24 is supplied.

[0020] The blower 24 is for discharging the air in the ventilation bag 26 to the rear side of the ventilation bag 26 by operating. This blower 24 is fixed to the ventilation bag 26 via a fixing bracket.

[0021] The ventilation bag 26 is formed in a rectangular shape having a vertical direction as a longitudinal direction when viewed from the front side. This ventilation bag 26 is configured to include a first film 30 and a second film 32.

[0022] The first film 30 is formed in a rectangular sheet shape having a vertical direction as a longitudinal direction when viewed from the front side. As shown in FIGS. 1, 2, and 3, this first film 30 is disposed along the rear surface of the back pad 22. Further, a plurality of suction holes 30A are respectively formed at positions corresponding to the plurality of ventilation holes 22A formed in the back pad 22 in the first film 30.

[0023] The second film 32 is positioned behind the first film 30 and is formed as a rectangular sheet with its longitudinal direction oriented vertically when viewed from the front. The outer periphery of the second film 32 and the outer periphery of the first film 30 are joined together to form a bag-shaped ventilation bag 26. A circular passage hole is formed in the center of the upper part of the second film 32 in the left-right direction, through which air from the ventilation bag 26 passes. A fixing bracket for securing the blower 24 to the ventilation bag 26 is fixed to the edge of the passage hole in the second film 32.

[0024] The ventilation bag 26 described above is fixed to the back pad 22 by attaching the first film 30 to the rear surface of the back pad 22 via adhesive or the like.

[0025] Next, we will describe a configuration for preventing gaps from forming between the periphery of the ventilation holes 22A in the back pad 22 and the ventilation bag 26.

[0026] As shown in Figures 2, 4, and 5, leak-stopping protrusions 22C are formed around the ventilation holes 22A on the rear surface 22B side of the back pad 22, projecting toward the first film 30 side of the ventilation bag 26. When viewed from the rear, the shape of these leak-stopping protrusions 22C is an ellipse that continuously surrounds the ventilation holes 22A. Furthermore, the protrusion height H of the leak-stopping protrusions 22C relative to the surrounding portion 22D on the back pad 22 is set to approximately 1.0 mm. In this embodiment, leak-stopping protrusions 22C are formed around all the ventilation holes 22A on the rear surface 22B side of the back pad 22. That is, 10 leak-stopping protrusions 22C are formed on the rear surface 22B side of the back pad 22. When the ventilation bag 26 is fixed to the back pad 22 (with the first film 30 attached to the rear surface of the back pad 22), the leading edges of all the leak-stopping protrusions 22C in the protruding direction are in contact with the first film 30.

[0027] (Operation and effects of this embodiment) Next, the operation and effects of this embodiment will be described.

[0028] As shown in Figures 1 to 5, in the vehicle seat 12 of this embodiment, when the blower 24 of the air conditioner 10 is activated, air from the back of the seated occupant is introduced into the ventilation bag 26 through multiple ventilation holes 22A formed in the back pad 22 and multiple intake holes 30A in the first film 30. The air introduced into the ventilation bag 26 is then discharged from the blower 24 to the rear side of the ventilation bag 26.

[0029] Here, each ventilation hole 22A on the rear surface 22B side of the back pad 22 is provided with a leak-stopping projection 22C. These leak-stopping projections 22C are continuously provided around the ventilation holes 22A in the back pad 22 so as to surround the ventilation holes 22A, and they protrude toward the first film 30 side of the ventilation bag 26. In this configuration, the tip of the leak-stopping projection 22C in the protruding direction can be reliably brought into contact with the first film 30 of the ventilation bag 26. In this way, it is possible to suppress the formation of a gap between the peripheral edge of the ventilation hole 22A in the back pad 22 and the first film 30 of the ventilation bag 26. In particular, in this embodiment, the gap between the peripheral edge of the ventilation hole 22A in the back pad 22 and the first film 30 of the ventilation bag 26 can be sealed by the leak-stopping projection 22C.

[0030] Furthermore, by setting the protrusion height H of the leak-stopping protrusion 22C relative to the surrounding portion 22D of the back pad 22 to 0.5 mm to 1.5 mm, it is possible to suppress the protrusion height of the leak-stopping protrusion 22C from becoming too high, while also suppressing the formation of a gap between the peripheral edge of the ventilation hole 22A in the back pad 22 and the first film 30 of the ventilation bag 26.

[0031] In this embodiment, an example using an air conditioner 10 in which the blower 24 is attached to the ventilation bag 26 has been described, but the present invention is not limited to this. Other air conditioners with configurations that can draw in and blow out air through the ventilation holes 22A can also be applied.

[0032] Furthermore, the configuration of the air conditioner 10 and back pad 22 in this embodiment can also be applied to the seat cushion 14 side.

[0033] Although one embodiment of the present invention has been described above, it goes without saying that the present invention is not limited to the above, and can be implemented in various other ways without departing from the spirit of the invention. [Explanation of Symbols]

[0034] 10 Air conditioner 12 Vehicle seats 14. Seat cushion (occupant support part) 16. Seat back (occupant support part) 18. Headrest (occupant support part) 20 Cushion pads (seat pads) 22 Back pad (seat pad) 22A Ventilation holes 22C Leak-stopping protrusion Area around the leak-stopping protrusion on the 22D back pad (seat pad) 26 Ventilation bag

Claims

1. A seat pad that forms part of the occupant support section that supports the body of the seated occupant, and has ventilation holes formed that connect the side facing the seated occupant to the side facing the seated occupant, An air conditioner is provided along the seat pad on the side opposite to the seated occupant, and performs at least one of the following: drawing in air and blowing air out through the ventilation holes. A leak-stopping projection is provided around the ventilation hole in the seat pad so as to surround the ventilation hole and protrude toward the air conditioner side, A vehicle seat equipped with [a specific feature / feature].

2. The vehicle seat according to claim 1, wherein the height of the leak-stopping protrusion relative to the portion of the seat pad surrounding the leak-stopping protrusion is set to 0.5 mm to 1.5 mm.

3. The aforementioned air conditioner is configured to include a ventilation bag through which air passes, The vehicle seat according to claim 1 or claim 2, wherein the ventilation bag is attached to the side of the seat pad opposite to the seated occupant.

Images