公开(公告)号：US11874300B2

公开(公告)日：2024-01-16

申请号：US17729135

申请日：2022-04-26

Applicant: NHK Spring Co., Ltd.

Inventor： Kazuya Souma ,  Tsukasa Sakaguchi

IPC: G01R1/067

CPC classification number: G01R1/06722

Abstract: A contact probe includes: a first contact member; a second contact member; and a spring member. The first contact member includes: a first tip part configured to contact a first contact target; and a boss part configured to couple with the spring member by fitting into the spring member, and the second contact member includes: a second tip part configured to contact a second contact target; and a cylindrical part extending from the second tip part and having a cylindrical shape with an inner circumference having a uniform diameter, the cylindrical part being engaged with at least a portion of the spring member, the portion of the spring member that is engaged with the cylindrical part having a diameter larger than the other portion of the spring member, the entire spring member being configured to be housed in the cylindrical part when the spring member is contracted.

公开(公告)号：US10411386B2

公开(公告)日：2019-09-10

申请号：US15501592

申请日：2015-08-07

Applicant: NHK Spring Co., Ltd.

Inventor： Toshio Kazama ,  Kazuya Souma

IPC: H01R13/24 ,  G01R1/067 ,  G01R1/04

Abstract: A conductive connection terminal is extensible and compressible in a longitudinal direction, and includes: a first contact member including a first tip portion configured to contact with one electrode of a contact target, and a first base end portion; a second contact member including a second tip portion configured to contact with another electrode of the contact target, and a plurality of tongue parts configured to contact with the first base end portion; an elastic member configured to extend and compress the first contact member and the second contact member in the longitudinal direction; and a load applying unit configured to apply a load to the tongue parts in a direction bringing the tongue parts into contact with an outer circumference of the first base end portion.

公开(公告)号：US11346859B2

公开(公告)日：2022-05-31

申请号：US16496608

申请日：2018-03-29

Applicant: NHK Spring Co., Ltd.

Inventor： Kazuya Souma ,  Tsukasa Sakaguchi

IPC: G01R1/067

Abstract: A contact probe is conductive and capable of expanding/contracting along an axial line direction. The contact probe includes: a first contact member configured to contact one contact target; a second contact member configured to contact another contact target, and to house at least a portion of the first contact member; and a spring member configured to couple the first contact member and the second contact member in a manner capable of expansion/contraction with both end parts of the spring member. The spring member is wound in a helical shape, and at least a diameter of an outer circumference in one of the end parts held by the second contact member is larger than diameters of other portions. A diameter of an inner circumference of an end part of the second contact member on a side housing the first contact member is equal to or larger than a maximum diameter of the first contact member.

公开(公告)号：US20220252640A1

公开(公告)日：2022-08-11

申请号：US17729135

申请日：2022-04-26

Applicant: NHK Spring Co., Ltd.

Inventor： Kazuya Souma ,  Tsukasa Sakaguchi

IPC: G01R1/067

Abstract: A contact probe includes: a first contact member; a second contact member; and a spring member. The first contact member includes: a first tip part configured to contact a first contact target; and a boss part configured to couple with the spring member by fitting into the spring member, and the second contact member includes: a second tip part configured to contact a second contact target; and a cylindrical part extending from the second tip part and having a cylindrical shape with an inner circumference having a uniform diameter, the cylindrical part being engaged with at least a portion of the spring member, the portion of the spring member that is engaged with the cylindrical part having a diameter larger than the other portion of the spring member, the entire spring member being configured to be housed in the cylindrical part when the spring member is contracted.

公开(公告)号：US11131691B2

公开(公告)日：2021-09-28

申请号：US16498480

申请日：2018-03-26

Applicant: NHK Spring Co., Ltd.

Inventor： Tsukasa Sakaguchi ,  Kazuya Souma

IPC: G01R1/073

Abstract: A probe holder holds contact probes each of which comes in contact with one electrode of a contact target on one end portion side in a longitudinal direction. The probe holder includes a plate in which holder holes configured to hold the respective contact probes are formed and penetrate the probe holder. Each of the holder holes includes a first hole portion disposed on one end of a penetrating direction and extending in the penetrating direction, a large diameter portion connected to the first hole portion and extending in the penetrating direction, the large diameter portion being larger than a diameter of the first hole portion, and a second hole portion disposed on another end of the penetrating direction, connected to the large diameter portion, and extending in the penetrating direction, the second hole portion being smaller than a diameter of the large diameter portion.

公开(公告)号：US20210223287A1

公开(公告)日：2021-07-22

申请号：US16496608

申请日：2018-03-29

Applicant: NHK Spring Co., Ltd.

Inventor： Kazuya Souma ,  Tsukasa Sakaguchi

IPC: G01R1/067

Abstract: A contact probe is conductive and capable of expanding/contracting along an axial line direction. The contact probe includes: a first contact member configured to contact one contact target; a second contact member configured to contact another contact target, and to house at least a portion of the first contact member; and a spring member configured to couple the first contact member and the second contact member in a manner capable of expansion/contraction with both end parts of the spring member. The spring member is wound in a helical shape, and at least a diameter of an outer circumference in one of the end parts held by the second contact member is larger than diameters of other portions. A diameter of an inner circumference of an end part of the second contact member on a side housing the first contact member is equal to or larger than a maximum diameter of the first contact member.

公开(公告)号：US20200033380A1

公开(公告)日：2020-01-30

申请号：US16498480

申请日：2018-03-26

Applicant: NHK Spring Co., Ltd.

Inventor： Tsukasa Sakaguchi ,  Kazuya Souma

IPC: G01R1/073

Abstract: A probe holder holds contact probes each of which comes in contact with one electrode of a contact target on one end portion side in a longitudinal direction. The probe holder includes a plate in which holder holes configured to hold the respective contact probes are formed and penetrate the probe holder. Each of the holder holes includes a first hole portion disposed on one end of a penetrating direction and extending in the penetrating direction, a large diameter portion connected to the first hole portion and extending in the penetrating direction, the large diameter portion being larger than a diameter of the first hole portion, and a second hole portion disposed on another end of the penetrating direction, connected to the large diameter portion, and extending in the penetrating direction, the second hole portion being smaller than a diameter of the large diameter portion.

公开(公告)号：US10274517B2

公开(公告)日：2019-04-30

申请号：US15576605

申请日：2017-02-01

Applicant: NHK SPRING CO., LTD.

Inventor： Kohei Hironaka ,  Kazuya Souma ,  Satoshi Shoji ,  Ryosuke Yamaguchi

IPC: G01R31/28 ,  G01R1/067 ,  G01R31/26

Abstract: Provided is a conductive probe having a first end portion and a second end portion opposing the first end portion. The first end portion includes first to fourth linear ridges and first to fifth vertexes, and the first to fourth linear ridges are spaced from one another and arranged to form a cross. The first to fourth vertexes are located on an outer circumference of the first end portion and further arranged between the first linear ridge and the second linear ridge, between the second linear ridge and the third linear ridge, between the third linear ridge and the fourth linear ridge, and between the fourth linear ridge and the first linear ridge, respectively.

公开(公告)号：US20170229802A1

公开(公告)日：2017-08-10

申请号：US15501592

申请日：2015-08-07

Applicant: NHK Spring Co., Ltd.

Inventor： Toshio Kazama ,  Kazuya Souma

IPC: H01R13/24

CPC classification number: H01R13/2421 ,  G01R1/0416 ,  G01R1/06722 ,  H01R13/24 ,  H01R13/2471

Abstract: A conductive connection terminal is extensible and compressible in a longitudinal direction, and includes: a first contact member including a first tip portion configured to contact with one electrode of a contact target, and a first base end portion; a second contact member including a second tip portion configured to contact with another electrode of the contact target, and a plurality of tongue parts configured to contact with the first base end portion; an elastic member configured to extend and compress the first contact member and the second contact member in the longitudinal direction; and a load applying unit configured to apply a load to the tongue parts in a direction bringing the tongue parts into contact with an outer circumference of the first base end portion.