公开(公告)号：US20220001779A1

公开(公告)日：2022-01-06

申请号：US17292934

申请日：2019-10-04

Applicant: BRIDGESTONE CORPORATION

Inventor： Yukiko YAMAGUCHI ,  Taisuke YONEZAWA ,  Yoshiyuki TAKAHASHI

IPC: B60N2/70 ,  B60N2/68

Abstract: A seat pad 1 is a seat pad including a resin foamed body 50, and a sheet member 70 buried in the resin foamed body, and when a direction orthogonal to a right-left direction and a thickness direction of the seat pad is referred to as an extending direction of the seat pad, at least a central part of the sheet member is curved in a convex shape on a back surface side of the seat pad in the extending direction.

公开(公告)号：US20180312089A1

公开(公告)日：2018-11-01

申请号：US15770057

申请日：2016-11-10

Applicant: BRIDGESTONE CORPORATION

Inventor： Yoshiyuki TAKAHASHI ,  Taisuke YONEZAWA

IPC: B60N2/70 ,  B32B5/32

Abstract: A flexible polyurethane foam molded article includes a plurality of layer parts (L1 to L10) that are layered in a vertical direction (Y) perpendicular to a stage surface (1A). When the entire flexible polyurethane foam molded article is compressed by 15% in the vertical direction (Y), the front surface layer (L1) positioned closest to the stage surface (1A) in the vertical direction (Y) among the plurality of layer parts (L1 to L10) has the lowest residual thickness ratio in the vertical direction (Y) among the plurality of layer parts (L1 to L10). When the entire flexible polyurethane foam molded article is compressed by 50% in the vertical direction (Y), the back surface layer (L10) positioned closest to a non-stage surface (1B) of the flexible polyurethane foam molded article in the vertical direction (Y) among the plurality of layer parts (L1 to L10) has the highest residual thickness ratio in the vertical direction (Y) among the plurality of layer parts (L1 to L10).

公开(公告)号：US20200094453A1

公开(公告)日：2020-03-26

申请号：US16495286

申请日：2018-01-24

Applicant: BRIDGESTONE CORPORATION

Inventor： Yoshiyuki TAKAHASHI ,  Taisuke YONEZAWA ,  Yukiko TSUGAWA

IPC: B29C44/58 ,  B29C44/08

Abstract: According to the present invention, a side part cavity (23) in which a side part is molded, a body part cavity (24) in which a body part is molded, and an attachment part cavity (25) in which an attachment part is molded are formed between a plurality of molding molds (21, 22), and a guiding part (26) that is configured to guide a foam to the body part cavity when an undiluted foam solution of the second synthetic resin material supplied to the side part cavity foams is arranged at a part of the side part cavity adjacent to, in a left-right direction X, a rear end part of the body part cavity in which a non-contact part is molded.

公开(公告)号：US20180111292A1

公开(公告)日：2018-04-26

申请号：US15571167

申请日：2016-04-22

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji KUMAGAI ,  Taisuke YONEZAWA ,  Toshimitsu SHINOHARA ,  Yoshiyuki TAKAHASHI

IPC: B29C33/50 ,  B29C39/04 ,  B29C39/34 ,  B60N2/90 ,  A47C7/02 ,  B29C44/02

CPC classification number: B29C33/50 ,  A47C7/02 ,  B29C39/02 ,  B29C39/04 ,  B29C39/26 ,  B29C39/34 ,  B29C41/38 ,  B29C44/02 ,  B29C44/0461 ,  B29C44/582 ,  B29K2075/00 ,  B29K2823/12 ,  B29K2867/003 ,  B29L2031/58 ,  B60N2/90

Abstract: A foam molded body production device (20) including a plurality of molds (21); a cavity (23) that is delimited, between the plurality of molds (21), by cavity surfaces (22) of the plurality of molds (21); and a protrusion portion (28) that is formed on the cavity surfaces (22). The protrusion portion (28) is formed from an elastic body. The cavity surfaces (22) are provided with a holding portion (29) that contacts a tip of the protrusion portion (28) when the plurality of molds (21) are closed, and causes the protrusion portion (28) to elastically deform inside the cavity (23).

公开(公告)号：US20210070204A1

公开(公告)日：2021-03-11

申请号：US16771684

申请日：2018-10-18

Applicant: BRIDGESTONE CORPORATION

Inventor： Yoshiyuki TAKAHASHI ,  Taisuke YONEZAWA ,  Yukiko TSUGAWA

IPC: B60N2/72 ,  B60N2/64 ,  A47C27/14

Abstract: A vehicle seat according to the present disclosure includes a pad including a foam, and a volume adjustment mechanism that allows adjustment of a volume of the foam. An adjustment method for a pad vibration characteristic according to the present disclosure adjusts a volume of a foam included in a pad to adjust a vibration characteristic of the pad.

公开(公告)号：US20200047649A1

公开(公告)日：2020-02-13

申请号：US16490148

申请日：2018-01-25

Applicant: BRIDGESTONE CORPORATION

Inventor： Yoshiyuki TAKAHASHI ,  Taisuke YONEZAWA ,  Yukiko TSUGAWA

IPC: B60N2/70 ,  B29D99/00 ,  A47C7/02 ,  A47C7/18

Abstract: According to the present invention, in a plan view of a seat surface (10a), a plane area of a part surrounded by an inner edge (17a) of a rear part (17) in a left-right direction (X) and a contour (L) is larger than a plane area of a part sandwiched by an inner edge (18a) of a front part (18) in the left-right direction (X) and the contour (L) in the left-right direction (X). In addition, a part of a pair of left and right second synthetic resin materials forming a lower part having a maximum gap therebetween in the left-right direction (X) is positioned in a thigh rest part (14) and a part having a minimum gap is positioned in a hip rest part (15), and a maximum value (W1) of the gap between the pair of left and right second synthetic resin materials forming the lower part in the left-right direction (X) is two times or more a minimum value (W2) of the gap in the left-right direction (X).

公开(公告)号：US20180257526A1

公开(公告)日：2018-09-13

申请号：US15571171

申请日：2016-04-22

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji KUMAGAI ,  Yoshiyuki TAKAHASHI ,  Toshimitsu SHINOHARA ,  Taisuke YONEZAWA

IPC: B60N2/64

Abstract: A seat pad (10) having a loading surface (11). In the seat pad (10), a lateral slit portion (15), extending from the outside towards the inside of the seat pad (10) in a first lateral direction (B1) that is parallel to the loading surface (11), is formed. A longitudinal slit portion (15) is provided at an end portion of the lateral slit portion (15), in a second lateral direction (B2) that is orthogonal to the first lateral direction (B1) and that is parallel to the loading surface (11). The longitudinal slit portion (21) extends from the lateral slit portion (15) towards the loading surface (11) in a thickness direction (H) that is orthogonal to the loading surface (11).

公开(公告)号：US20180146787A1

公开(公告)日：2018-05-31

申请号：US15576521

申请日：2016-04-19

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji KUMAGAI ,  Yoshiyuki TAKAHASHI ,  Toshimitsu SHINOHARA ,  Taisuke YONEZAWA

IPC: A47C7/18 ,  B60N2/70

Abstract: A seat pad (10) of the present invention includes a placement surface (11). A lateral slit portion (15) which extends from an outer side of the seat pad (10) toward an inner side thereof is formed in a first lateral direction (B1) along the placement surface (11), and at least a portion of the lateral slit portion (15) gradually becomes larger from the outer side of the seat pad (10) toward the inner side thereof in a thickness direction (H) orthogonal to the placement surface (11) along the first lateral direction (B1).

公开(公告)号：US20170327020A1

公开(公告)日：2017-11-16

申请号：US15524726

申请日：2016-01-13

Applicant: BRIDGESTONE CORPORATION

Inventor： Taisuke YONEZAWA

IPC: B60N2/70 ,  A47C7/20 ,  B60N2/64

CPC classification number: B60N2/70 ,  A47C7/18 ,  A47C7/20 ,  A47C27/14 ,  B60N2/64

Abstract: A seat pad (10) is formed from a foamed molded body. A passenger contact surface (11) which, in a plan view of the seat pad (10), is formed in the shape of a rectangle that is long in the lengthwise direction (X) and short in the widthwise direction (Y), is provided. The passenger contact surface (10) comprises a main pressure-receiving area (11a) with which the buttocks or the waist of a passenger come into contact, and a subsidiary pressure-receiving area (11b) that is adjacent to the main pressure-receiving area (11a) in the lengthwise direction (X). The passenger contact surface (11) is provided with partitioning grooves (15) that extend in the lengthwise direction (X) and that are arranged across the main pressure-receiving area (11a) and the subsidiary pressure-receiving area (11b). The partitioning grooves (15) are arranged so as to lie parallel to each other in the widthwise direction (Y). Additional grooves (16) are formed on the bottom surfaces of the partitioning grooves (15). In the partitioning grooves (15), the average volume, which is the ratio of the volume of the additional grooves (16) per unit area of the bottom surfaces of the partitioning grooves (15), is smaller in a first section (15a) located in the main pressure-receiving area (11a) than in a second section (15b) located in the subsidiary pressure-receiving area (11b).

公开(公告)号：US20160339613A1

公开(公告)日：2016-11-24

申请号：US15226080

申请日：2016-08-02

Applicant: BRIDGESTONE CORPORATION

Inventor： Taichi ITABASHI ,  Taisuke YONEZAWA

IPC: B29C44/58 ,  B29C44/12

CPC classification number: B29C44/588 ,  B29C33/10 ,  B29C44/1271 ,  B29L2031/58 ,  B32B3/30 ,  Y10T428/24496

Abstract: The present invention is an apparatus for manufacturing a foam molded product in which a foam molded product (1A, 1B) is formed by integrally adhering together a foam body (2) that is formed by the foaming of a foaming raw material, and an air-permeable component (3). A cavity (23) is provided between a plurality of mold components (21, 22, 31) and is defined by respective cavity surfaces (21a, 22a, 31a) of the mold components (21, 22, 31).

Abstract translation: 本发明是一种发泡成型体的制造装置，其中通过将通过发泡原料的发泡形成的泡沫体（2）和空气一体地粘合在一起而形成发泡成型体（1A，1B） - 渗透组分（3）。 空腔（23）设置在多个模具部件（21,22,31）之间，并且由模具部件（21,22,31）的相应的空腔表面（21a，22a，31a）限定。