Cushion pad

Abstract

To provide a cushion pad in which there is little difference in a forward tilt angle of a seat back between a center seat and a side seat.SOLUTION: A cushion pad 4 forms a seat pad of a seat cushion 3 in which a center seat A1 and a side seat connect to each other. The cushion pad 4 has a center pad 4A forming a seat pad of the center seat 1A, and a side pad forming a seat pad of the side seat. The center pad 4A has a first contact part A1, which contacts a first seat back 2A, at an upper part thereof. The first contact part A1 is provided on a built-up part A2 of the center pad 4A which build up so as to form a seating face higher than a second contact part that contacts a second seat back of the side pad tilted forward. The built-up part A2 comprises a soft member F which is softer than a pad body A3 of the center pad 4A which supports the same from a pad rear side.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a cushion pad, and more particularly to a cushion pad that forms a seat pad of a seat cushion that connects a center seat and a side seat. [Background technology]

[0002] Patent Document 1 discloses a semi-separate seat that can seat three people on either side. Specifically, the seat cushion is an integrated structure that connects the center seat and both side seats, while the seat back is split 60:40 between the left and right. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-1413 Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration described in Patent Document 1, the seat surface of the center seat of the seat cushion is shaped to be higher than the seat surfaces of the two side seats for various reasons. As a result, when the seat back is tilted forward, there is a difference in the forward tilt angle between side 6, which contacts the center seat of the seat cushion, and side 4, which does not. Therefore, the present invention provides a cushion pad that reduces the difference in the forward tilt angle of the seat back between the center seat and the side seats. [Means for solving the problem]

[0005] To solve the above problems, the cushion pad of the present invention employs the following means.

[0006] That is, the first invention of the present invention is a cushion pad that forms the seat pad of a seat cushion that connects a center seat and a side seat, and has a center pad that forms the seat pad of the center seat and a side pad that forms the seat pad of the side seat, the center pad has a first contact portion that comes into contact with a first seat back that is folded forward onto the center pad, and the side pad has a second contact portion that comes into contact with a second seat back that is folded forward onto the side pad, the first contact portion is provided on a raised portion that rises to form a seating surface that is higher than the second contact portion of the center pad, and the raised portion is made of a soft material that is softer than the pad body of the center pad that supports the raised portion from the back side of the pad.

[0007] According to the first aspect of the present invention, it is possible to reduce the difference in forward tilt angle that may occur between the first seat back that is tilted forward to contact the first contact portion of the center pad and the second seat back that is tilted forward to contact the second contact portion of the side pad.

[0008] A second invention of the present invention is a cushion pad according to the first invention, wherein the soft member is an installed member that is installed in a recess formed on the pad surface of the pad main body without being integrally molded.

[0009] According to the second aspect of the present invention, compared to a configuration in which the soft member is foam-molded integrally with the pad body, there is less risk of the soft member being hardened by impregnation or molding defects such as urethane leakage, etc. Therefore, the cushion pad can be formed relatively easily.

[0010] A third aspect of the present invention is the cushion pad according to the second aspect, wherein the soft member has an extension portion that extends beyond the first contact portion toward the front of the seat.

[0011] According to the third aspect of the present invention, the boundary between the soft member and the pad main body on the front side of the seat is positioned beyond the first contact portion on the front side of the seat, which makes it less likely that the boundary will be subjected to loads caused by tilting the first seat back forward or sitting on the seat, and makes it less likely that highlight lines will appear on the cushion cover attached to this boundary.

[0012] A fourth aspect of the present invention is the cushion pad according to the second or third aspect, wherein the soft member has a thickness that is the same as the depth of the recess.

[0013] According to the fourth aspect of the present invention, it is possible to prevent a difference in level between the seating surfaces of the soft member and the pad main body, and also to make it difficult for highlight lines to appear on the cushion cover placed on the boundary between them.

[0014] A fifth aspect of the present invention is a cushion pad according to the second or third aspect, wherein the pad body has an inclined support portion formed on the edge of the recess on the seat rear side so as to support the soft member obliquely upward from the back side of the pad.

[0015] According to the fifth aspect of the present invention, the change in hardness between the soft member and the harder pad body is alleviated. As a result, even if the soft member is provided, the riding comfort of the center seat is less likely to be impaired. Furthermore, because the soft member is easily crushed to eliminate the difference in level with the pad body, it is possible to make it less likely that a highlight line will be visible on the cushion cover attached to the boundary between them, compared to a configuration in which the pad body is higher. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a perspective view illustrating a schematic configuration of a cushion pad according to a first embodiment. [Figure 2] FIG. 2 is a perspective view showing a state in which the seat back is folded forward onto the seat cushion. [Figure 3] FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. [Figure 5] FIG. 4 is a cross-sectional view taken along line VV in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0018] First Embodiment (Schematic configuration of cushion pad 4) First, the configuration of the cushion pad 4 according to the first embodiment of the present invention will be described with reference to Figures 1 to 5. In the following description, when directions such as front, back, up, down, left, and right are indicated, they refer to the directions shown in each figure.

[0019] Furthermore, when a direction such as the "sheet width direction" is indicated with the word "sheet," it refers to the respective direction based on the sheet 1 described below. Furthermore, in the following description, when a specific reference drawing is not shown or when there is no reference symbol corresponding to the reference drawing, any of Figures 1 to 5 will be referred to as appropriate.

[0020] 1, a cushion pad 4 according to this embodiment is configured as a pad member (seat pad) of a seat cushion 3 of an automobile seat 1. The seat 1 is configured as a rear seat with a luggage compartment adjacent to the rear side thereof.

[0021] Specifically, the seat 1 is configured as a semi-separate seat that can accommodate three people on either side. Specifically, the seat 1 has a seat back 2 that serves as a backrest for a seated occupant, and a seat cushion 3 that serves as a seating area.

[0022] The seat back 2 is divided into a 6:4 ratio on the left and right. That is, the seat back 2 is composed of a first seat back 2A on the 6 side that forms the backrest of the right side seat 1B and the center seat 1A, and a second seat back 2B on the 4 side that forms the backrest of the left side seat 1B. The seat cushion 3 is an integrated structure that connects each side seat 1B and the center seat 1A.

[0023] The first seat back 2A and the second seat back 2B are connected to the seat cushion 3 so that the backrest angle can be adjusted via a recliner (not shown). As a result, as shown in Fig. 2, when not in use, the first seat back 2A and the second seat back 2B can be folded forward so as to be individually folded onto the top of the seat cushion 3, thereby expanding the luggage compartment at the rear.

[0024] As shown in Fig. 1, the seat cushion 3 has a cushion pad 4 made of urethane foam and a fabric cushion cover 5 that covers the surface of the cushion pad 4. As shown in Fig. 3, the cushion pad 4 has a center pad 4A that forms the seating portion of the center seat 1A and side pads 4B that form the seating portion of each side seat 1B.

[0025] 4, the center pad 4A has a first contact portion A1 that comes into contact with the upper portion (the portion that supports the upper back of the seated occupant) of the first seat back 2A on side 6 when the seat back is tilted forward. The first contact portion A1 forms a front region that slopes downward from the cushion top portion T, which is the top of the seat surface of the center pad 4A that slopes upward toward the front.

[0026] 5, each side pad 4B also has a second contact portion B1 that contacts the upper portion of the first seat back 2A or the second seat back 2B (the portion that supports the upper portion of the back of the seated occupant) when the seat back is tilted forward. Each second contact portion B1 forms a front region that slopes downward from the top of the seat surface of each side pad 4B, which slopes upward toward the front.

[0027] The first contact portion A1 is provided on a raised portion A2 that rises to form a bearing surface higher than each of the second contact portions B1 of the center pad 4A. As shown in Figure 4, the raised portion A2 is made of a flat soft member F that is placed in a recess A4 formed on the upper surface of the pad body A3 of the center pad 4A.

[0028] The pad body A3 of the center pad 4A is made of molded urethane. On the other hand, the soft member F is made of slab urethane, which is softer than the pad body A3. The soft member F is a flat member that is rectangular in plan view and fits snugly into the recess A4 formed on the top surface of the pad body A3. Specifically, the soft member F is a flat plate with a constant thickness that is the same dimension as the depth of the recess A4.

[0029] The soft member F is attached to the inner circumferential surface of the recess A4 of the pad main body A3 by an adhesive (spray glue) applied to the entire inner circumferential surface of the recess A4. In other words, the soft member F is an installed member that is installed integrally with the recess A4 using an adhesive after the pad main body A3 has been foam-molded.

[0030] 5, if the first contact portion A1 is raised to form a seat surface higher than each of the second contact portions B1 as described above, the difference in contact position in the height direction will occur as follows: That is, when the first seat back 2A on side 6 and the second seat back 2B on side 4 are folded forward, the first seat back 2A will contact the first contact portion A1 at a position higher than the position where the second seat back 2B contacts the second contact portion B1.

[0031] At that time, if the first seatback 2A comes into contact with the first contact portion A1 and is stopped from tilting forward at a position higher than the second seatback 2B, a difference in the forward tilt angle will occur between the first seatback 2A and the second seatback 2B. However, because the raised portion A2 where the first contact portion A1 is set is made of the soft member F, the first seatback 2A is allowed to tilt to approximately the same forward tilt angle as the second seatback 2B while significantly crushing the soft member F.

[0032] As a result, the first seat back 2A and the second seat back 2B are tilted forward so that their backs are flush with each other. The bottom surface of the recess A4 of the pad main body A3, which supports the soft member F from the back side of the pad (the lower side in the figure), has an inclined support portion A5 formed on the edge on the rear side of the seat, which is padded so as to bulge obliquely upward toward the rear. As shown in Figure 4, the inclination of the inclined support portion A5 is gentle.

[0033] The inclined support portion A5 extends uniformly over substantially the entire width of the seat along the rear edge of the recess A4. The inclined support portion A5 supports the rear edge of the soft member F in an obliquely upward direction from the rear side of the pad.

[0034] When the cushion cover 5 is placed on the surface of the cushion pad 4, the rear edge of the soft member F supported by the inclined support portion A5 is crushed to form a shape flush with the surface of the pad main body A3 behind it. As a result, the rear edge of the soft member F supported by the inclined support portion A5 becomes harder as it goes rearward.

[0035] This change in hardness alleviates the change in hardness that occurs between the soft member F and the harder pad main body A3. As a result, even if the soft member F is provided, the riding comfort of the center seat 1A of the seat cushion 3 is less likely to be impaired. Also, because the soft member F is no longer provided lower than the pad main body A3, it is possible to make it less likely that a highlight line will stand out on the cushion cover 5 that is placed on the boundary between them.

[0036] 4, the soft member F has an extension F1 that extends beyond the first contact portion A1 that comes into contact with the first seat back 2A toward the front of the seat. The extension F1 is shaped to extend obliquely downward toward the front of the seat beyond the cushion top T, which is the top of the seating surface that slopes upward toward the front of the center pad 4A.

[0037] With this configuration, the thighs of the seated occupant are supported from below near the cushion top T mainly by the soft member F, making them less likely to come into contact with the pad main body A3. This makes it less likely that the weight of the seated occupant will be applied to the front-to-rear boundary between the soft member F and the pad main body A3. This makes it less likely that the riding comfort of the center seat 1A will be impaired. In addition, the first seat back 2A is also less likely to come into contact with the front-to-rear boundary between the soft member F and the pad main body A3.

[0038] To summarize the above, the cushion pad 4 according to this embodiment has the following configuration: Note that the reference numerals in parentheses below correspond to the respective components shown in the above embodiment.

[0039] That is, the cushion pad (4) forms the seat pad of the seat cushion (3) that connects the center seat (1A) and the side seat (1B). The cushion pad (4) has a center pad (4A) that forms the seat pad of the center seat (1A) and a side pad (4B) that forms the seat pad of the side seat (1B). The center pad (4A) has a first abutment portion (A1) that abuts against the first seat back (2A) that is tilted forward onto the center pad (4A).

[0040] The side pad (4B) has a second contact portion (B1) that contacts the second seat back (2B) when it is folded forward onto the side pad (4B). The first contact portion (A1) is provided on a raised portion (A2) that rises to form a seating surface higher than the second contact portion (B1) of the center pad (4A). The raised portion (A2) is made of a soft member (F) that is softer than the pad body (A3) of the center pad (4A) that supports the raised portion (A2) from the back side of the pad.

[0041] According to the above configuration, it is possible to reduce the difference in forward tilt angle that may occur between the first seat back (2A) that is tilted forward so as to abut against the first contact portion (A1) of the center pad (4A) and the second seat back (2B) that is tilted forward so as to abut against the second contact portion (B1) of the side pad (4B).

[0042] Furthermore, the soft member (F) is a fixed member that is installed in the recess (A4) formed on the surface of the pad main body (A3) without being integrally molded. This configuration reduces the risk of hardening the soft member (F) due to impregnation or molding defects such as urethane leakage, compared to a configuration in which the soft member (F) is foam-molded integrally with the pad main body (A3). Therefore, the cushion pad (4) can be formed relatively easily.

[0043] In addition, the soft member (F) has an extension (F1) that extends beyond the first contact portion (A1) toward the front of the seat. According to the above configuration, the boundary between the soft member (F) and the pad main body (A3) on the front side of the seat is located at a position beyond the first contact portion (A1) toward the front of the seat. As a result, the boundary is less likely to be subjected to loads caused by tilting the first seat back (2A) forward or sitting on the seat, and highlight lines are less likely to appear on the cushion cover (5) that is stretched over these boundaries.

[0044] Furthermore, the soft member (F) has a thickness equal to the depth of the recess (A4). This configuration prevents a step from occurring between the soft member (F) and the pad body (A3) on their respective seating surfaces. It also makes it difficult for highlight lines to appear on the cushion cover (5) that is placed on the boundary between them.

[0045] In addition, the pad body (A3) has an inclined support portion (A5) that is padded on the edge of the recess (A4) on the seat rear side so as to support the soft member (F) in a diagonally upward and rearward direction from the back side of the pad. This configuration mitigates the difference in hardness between the soft member (F) and the harder pad body (A3). As a result, even if the soft member (F) is provided, the riding comfort of the center seat (1A) is less likely to be impaired. Furthermore, because the soft member (F) is easily crushed to eliminate the difference in level with the pad body (A3), it is less likely that a highlight line will be visible on the cushion cover (5) that is attached to the boundary between them, compared to a configuration in which the pad body (A3) is higher.

[0046] Other Embodiments Although one embodiment of the present invention has been described above, the present invention can be embodied in various forms other than the above embodiment.

[0047] 1. The cushion pad of the present invention is applicable to seats installed in vehicles such as automobiles and trains, as well as seats installed in vehicles other than vehicles such as airplanes and ships. The cushion pad is also applicable to seats other than vehicles.

[0048] 2. The first seatback that is tilted forward onto the center pad and the second seatback that is tilted forward onto the side pads may be configured to be integrally connected to each other. Even in such a configuration, by configuring the first contact portion of the center pad with a soft material, it becomes possible to tilt the first seatback forward onto the center pad to a forward tilt angle at which the second seatback contacts the second contact portion of the side pad. As a result, the first and second seatbacks can be made to contact both the center pad and the side pads, preventing a large pressing force from being applied to the center pad.

[0049] 3. The soft member may be made of a material softer than the main body of the center pad, and may be made of slab urethane or molded urethane. The soft member may also be made of urethane, three-dimensional knitted synthetic fiber, or rubber. The soft member may be molded integrally with the main body of the center pad.

[0050] The soft member may not be integrated with the pad body of the center pad, but may simply be placed on the pad body. The soft member may be provided so as to protrude from a recess formed in the surface of the pad body. [Explanation of symbols]

[0051] 1 sheet 1A Center seat 1B side seats 2 seat backs 2A 1st seat back 2B 2nd seat back 3 seat cushions 4 cushion pads 4A Center Pad A1 1st contact part A2 raised part A3 pad body A4 recess A5 Inclined support part 4B side pad B1 2nd contact part 5 cushion covers F Soft material F1 extension T cushion top

Claims

1. A cushion pad that forms a seat pad of a seat cushion that connects a center seat and a side seat, a center pad forming a seat pad for the center seat; a side pad forming a seat pad of the side seat, the center pad has a first contact portion that comes into contact with the first seat back that is folded forward against the center pad, the side pad has a second contact portion that comes into contact with the second seat back that is folded forward against the side pad, The cushion pad is provided with a raised portion in which the first contact portion is provided so as to form a seating surface higher than the second contact portion of the center pad, and the raised portion is made of a soft material softer than the pad body of the center pad that supports the raised portion from the back side of the pad.

2. The cushion pad according to claim 1, The cushion pad is an installation type member in which the soft member is installed in a recess formed in the surface of the pad body without being integrally molded therewith.

3. The cushion pad according to claim 2, The cushion pad has an extension portion, wherein the soft member extends beyond the first contact portion toward the front side of the seat.

4. The cushion pad according to claim 2 or 3, The cushion pad has a thickness of the soft member that is the same as the depth of the recess.

5. The cushion pad according to claim 2 or 3, The cushion pad has an inclined support portion formed by padding on the edge of the recess on the seat rear side so as to support the soft member obliquely upward from the back side of the pad.

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