公开(公告)号：US20180156324A1

公开(公告)日：2018-06-07

申请号：US15508964

申请日：2016-05-31

Applicant: Komatsu Ltd.

Inventor： Hiroyuki Chikugo ,  Shuuji Hori ,  Mutsumi Ono ,  Kiyotaka Saitou ,  Shinya Sano ,  Takeaki Unno

IPC: F16H57/01 ,  F16H57/04 ,  B60K17/16 ,  H04N7/18 ,  H04N5/225 ,  G01N21/95

Abstract: A mechanical device includes a housing, a transparent spacer member, a magnet, and an image capturing device. The housing has an internal space in which a machine component immersed in oil is housed. The spacer member is disposed in an opening of the housing. The magnet is supported by the spacer member. The image capturing device captures the internal space of the housing via the spacer member.

公开(公告)号：US20200003191A1

公开(公告)日：2020-01-02

申请号：US16484921

申请日：2018-06-04

Applicant: KOMATSU LTD.

Inventor： Mutsumi Ono ,  Mitsuru Ohshiro ,  Naoya Sodeyama ,  Jun Nabata ,  Shuuji Hori

IPC: F04B1/32

Abstract: A variable displacement hydraulic pump or motor (10) includes: a swash plate (13); a lever (22) supported by a housing (21) and configured to rotate in conjunction of tilting of the swash plate (13); and a sensor (23) configured to detect a displacement amount of the lever (22).

公开(公告)号：US11293417B2

公开(公告)日：2022-04-05

申请号：US16484921

申请日：2018-06-04

Applicant: KOMATSU LTD.

Inventor： Mutsumi Ono ,  Mitsuru Ohshiro ,  Naoya Sodeyama ,  Jun Nabata ,  Shuuji Hori

IPC: F04B1/324 ,  F04B1/2078

Abstract: A variable displacement hydraulic pump or motor includes: a swash plate; a lever supported by a housing and configured to rotate in conjunction of tilting of the swash plate; and a sensor configured to detect a displacement amount of the lever.

公开(公告)号：US10753376B2

公开(公告)日：2020-08-25

申请号：US16069207

申请日：2016-01-29

Applicant: Komatsu Ltd.

Inventor： Shuuji Hori ,  Masato Kageyama ,  Mutsumi Ono ,  Hiroyuki Chikugo ,  Akira Hasebe ,  Junichi Fukushima ,  Shunsuke Koike

IPC: F15B11/04 ,  F15B13/04 ,  F15B11/042 ,  F15B13/12 ,  F15B11/10 ,  F15B13/042 ,  F15B13/043 ,  F16K31/06 ,  E02F9/22

Abstract: A hydraulic cylinder spool valve device, which extends and retracts a cylinder rod of a hydraulic cylinder, includes: a first spool valve having a first dead band and a first opening characteristic; a second spool valve having a second dead band and a second opening characteristic; and a controller performing communication with the hydraulic cylinder by using the first spool valve and positioning the second spool of the second spool valve within the second dead band and performing communication with the hydraulic cylinder by using the second spool valve and positioning the first spool of the first spool valve within the first dead band, and adjusting a characteristic of a switching dead band between the first opening characteristic and the second opening characteristic.

公开(公告)号：US20180245490A1

公开(公告)日：2018-08-30

申请号：US15757486

申请日：2016-10-28

Applicant: Komatsu Ltd.

Inventor： Shuuji Hori ,  Hiroyuki Chikugo ,  Mutsumi Ono ,  Takuya Nohara ,  Yuta Baba ,  Toshiyuki Matsumoto

IPC: F01M11/10 ,  B01D29/11 ,  B01D35/00 ,  F15B21/04 ,  H04N5/225

CPC classification number: F01M11/10 ,  B01D29/114 ,  B01D29/15 ,  B01D35/005 ,  B01D35/02 ,  B01D35/16 ,  F01M1/02 ,  F01M11/0004 ,  F04B53/16 ,  F04B53/18 ,  F15B1/26 ,  F15B21/04 ,  F15B21/041 ,  F15B2211/615 ,  F15B2211/655 ,  H04N5/2253 ,  H04N2005/2255

Abstract: In order to be able to easily check the state of foreign matter contained in oil regardless of an installation location, a device main body 10 having a housing chamber 11 in which oil is stored, a plug 20 attached to a bottom portion of the housing chamber 11 in a state where an end surface of a shaft portion 20a faces upward, a spacer member 30 formed by a transparent member and arranged on the plug 20 in such a manner that one end surface 30a faces an inside of the housing chamber 11; and an imaging unit 40 arranged on the plug 20, the imaging unit 40 imaging the inside of the housing chamber 11 via the spacer member 30 are provided.

公开(公告)号：US10767748B2

公开(公告)日：2020-09-08

申请号：US15508964

申请日：2016-05-31

Applicant: Komatsu Ltd.

Inventor： Hiroyuki Chikugo ,  Shuuji Hori ,  Mutsumi Ono ,  Kiyotaka Saitou ,  Shinya Sano ,  Takeaki Unno

IPC: F16H57/01 ,  F16H57/04 ,  B60K17/16 ,  H04N5/225 ,  G01N21/95 ,  G01M11/08 ,  G01N21/85 ,  G01M13/02 ,  F16N29/00 ,  H04N7/18 ,  G01N21/94

Abstract: A mechanical device includes a housing, a transparent spacer member, a magnet, and an image capturing device. The housing has an internal space in which a machine component immersed in oil is housed. The spacer member is disposed in an opening of the housing. The magnet is supported by the spacer member. The image capturing device captures the internal space of the housing via the spacer member.

公开(公告)号：US10655514B2

公开(公告)日：2020-05-19

申请号：US15757486

申请日：2016-10-28

Applicant: Komatsu Ltd.

Inventor： Shuuji Hori ,  Hiroyuki Chikugo ,  Mutsumi Ono ,  Takuya Nohara ,  Yuta Baba ,  Toshiyuki Matsumoto

IPC: F01M11/10 ,  F04B53/18 ,  F15B21/04 ,  F04B53/16 ,  B01D35/02 ,  B01D29/15 ,  B01D35/16 ,  F15B1/26 ,  B01D29/11 ,  B01D35/00 ,  F15B21/041 ,  H04N5/225 ,  F01M1/02 ,  F01M11/00

Abstract: In order to be able to easily check the state of foreign matter contained in oil regardless of an installation location, a device main body 10 having a housing chamber 11 in which oil is stored, a plug 20 attached to a bottom portion of the housing chamber 11 in a state where an end surface of a shaft portion 20a faces upward, a spacer member 30 formed by a transparent member and arranged on the plug 20 in such a manner that one end surface 30a faces an inside of the housing chamber 11; and an imaging unit 40 arranged on the plug 20, the imaging unit 40 imaging the inside of the housing chamber 11 via the spacer member 30 are provided.

公开(公告)号：US20190003497A1

公开(公告)日：2019-01-03

申请号：US16069207

申请日：2016-01-29

Applicant: Komatsu Ltd.

Inventor： Shuuji Hori ,  Masato Kageyama ,  Mutsumi Ono ,  Hiroyuki Chikugo ,  Akira Hasebe ,  Junichi Fukushima ,  Shunsuke Koike

IPC: F15B13/04 ,  F15B11/10 ,  F15B13/043 ,  F15B13/042 ,  F16K31/06

Abstract: A hydraulic cylinder spool valve device, which extends and retracts a cylinder rod of a hydraulic cylinder, includes: a first spool valve having a first dead band and a first opening characteristic; a second spool valve having a second dead band and a second opening characteristic; and a controller performing communication with the hydraulic cylinder by using the first spool valve and positioning the second spool of the second spool valve within the second dead band and performing communication with the hydraulic cylinder by using the second spool valve and positioning the first spool of the first spool valve within the first dead band, and adjusting a characteristic of a switching dead band between the first opening characteristic and the second opening characteristic.