公开(公告)号：US20240200650A1

公开(公告)日：2024-06-20

申请号：US18084598

申请日：2022-12-20

Applicant: Enplas Corporation

Inventor： Koki HISAI

IPC: F16H57/08 ,  F16H57/00

CPC classification number: F16H57/082 ,  F16H57/0025

Abstract: A planetary gear device include: a carrier portion including a first facing portion and a second facing portion that face with each other, a planetary portion disposed between the first facing portion and the second facing portion; and a first supporting portion and a second supporting portion formed on the first facing portion and the second facing portion or the planetary portion, respectively, and cooperating with each other so as to support the planetary portion rotatably on the second facing portion.

公开(公告)号：US20220362979A1

公开(公告)日：2022-11-17

申请号：US17317493

申请日：2021-05-11

Applicant: ENPLAS CORPORATION

Inventor： Kazuki YAMADA ,  Koki HISAI

IPC: B29C45/27

Abstract: An aspect of mold for producing an end plate of a planetary gear carrier includes a mold body and a cylindrical protrusion extending from a front surface of the mold body. The cylindrical protrusion defines a cylindrical interior space fluidly linked to an interior space of the mold body. The mold also includes an injection gate disposed on a rear surface of the mold body and aligned with a longitudinal axis of the cylindrical protrusion, wherein the injection gate is configured to allow an injection nozzle to inject a molding material into the interior space from an exterior of the mold body. In some aspects, the molding material includes additives that can improve the properties of the resulting molded part. Other aspects of the present disclosure include molded carriers for planetary gear devices, and related processes or methods for making similar molded parts.

公开(公告)号：US20220307536A1

公开(公告)日：2022-09-29

申请号：US17705435

申请日：2022-03-28

Applicant: Enplas Corporation

Inventor： Koki HISAI

IPC: F16B21/18 ,  F16H57/025 ,  F16H57/08

Abstract: A gear device includes: a housing cover having an annular shape and including a center opening configured to dispose a connection shaft for a gear, the housing cover being disposed at one end portion of a housing in an axis direction, the housing having a cylindrical shape and configured to house the gear. At an outer surface of the housing cover, an assembling mechanism configured to detachably assemble another housing cover is provided.

公开(公告)号：US20220025965A1

公开(公告)日：2022-01-27

申请号：US17450172

申请日：2021-10-07

Applicant: ENPLAS CORPORATION

Inventor： Koki HISAI ,  Kazuki YAMADA ,  Toshiki KAWADA ,  Shohei ISHIDA ,  Takuya KANEKO

IPC: F16H57/028 ,  F16H57/00 ,  F16H57/08 ,  F16H1/46 ,  F16H55/14

Abstract: Separate structural units for an inner gear and a housing of a planetary gear device include an inner gear with a first raised portion formed on the outer peripheral surface of the inner gear, where the first raised portion extends towards in a direction that is inclined with respect to the axial direction of the inner gear. A housing includes a second raised portion formed on an inner peripheral surface, where the second raised portion extends in a direction that is inclined in respect to the axial direction. The housing contains the inner gear such that there is a gap formed between the inner peripheral surface of the housing and the outer peripheral surface of the inner gear. Movement of the inner gear within the interior of the housing is limited through linear contact of the first raised portion and the second raised portion.

公开(公告)号：US20220307583A1

公开(公告)日：2022-09-29

申请号：US17705432

申请日：2022-03-28

Applicant: Enplas Corporation

Inventor： Koki HISAI ,  Kazuki YAMADA

IPC: F16H57/031 ,  F16H57/021

Abstract: A planetary gear device includes: a housing cover disposed at one end portion of a housing in an axis direction, the housing being configured to house a sun gear and a planetary gear inside the housing; and a carrier cover disposed next to the housing cover in the axial direction in the inside, and configured to support a shaft of the planetary gear from one end portion side in the axial direction. One opposing part of a pair of opposing parts opposite to each other in the housing cover and the carrier cover includes a cone-shaped part whose diameter varies in the axial direction, and the other opposing part of the pair of opposing parts includes a sliding part configured to slide on a peripheral surface of the cone-shaped part with a same axis as an axis of the cone-shaped part.