公开(公告)号：US20200310351A1

公开(公告)日：2020-10-01

申请号：US16822452

申请日：2020-03-18

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Katsunobu IGUCHI

IPC: G04B37/00

Abstract: A timepiece according to the embodiment of the present invention includes a case band which has an opening on the upper surface side thereof, and which has a recess in an inner peripheral portion thereof; a bezel (windshield bezel) to which a glass (windshield) is fixed and which is mounted to the upper surface side of the case band; a protrusion which is provided at the portion of the bezel inserted into the inner side of the case band and which protrudes toward the inner peripheral portion so as not to enter the recess; and a stop member which is rotatably mounted to the bezel, which is made swingable between the upper side and the lower side of the protrusion by getting over the protrusion while undergoing elastic deformation, and the upper portion of which abuts a ceiling portion of the recess and the lower portion of which abuts the protrusion in a state in which the bezel is mounted to the case band to be respectively engaged with the case band and the bezel.

公开(公告)号：US20190278226A1

公开(公告)日：2019-09-12

申请号：US16291881

申请日：2019-03-04

Applicant: Seiko Instruments Inc.

Inventor： Katsunobu IGUCHI

IPC: G04B3/04

Abstract: A timepiece which provides a tactile feel in a simple structure and which can suppress inadvertent rotation of a driving crown is to be provided. A wristwatch includes an elastic material winding stem pipe protruding on the outer side of a case and a distal end portion of which is capable of elastic deformation in a radial direction; a shaft member of a driving crown rotatably inserted into the elastic material winding stem pipe; protrusions formed on the peripheral surface of the driving crown; and trough portions formed in the peripheral surface of the elastic material winding stem pipe and configured to be engaged with the protrusions.

公开(公告)号：US20180259906A1

公开(公告)日：2018-09-13

申请号：US15914438

申请日：2018-03-07

Applicant: Seiko Instruments Inc.

Inventor： Katsunobu IGUCHI

IPC: G04B3/04

CPC classification number: G04B3/043 ,  G04B3/041 ,  G04B3/046

Abstract: There is provided a crown lock mechanism-installed timepiece which enables a lock mechanism to regulate an operation of a crown by using a simple operation. A crown lock mechanism includes a winding stem, a crown, a lock screw ring, an extrusion spring, and a regulator. The winding stem is connected to a corrector lever of a movement. The crown is fixed to the winding stem. The crown is capable of engaging with the lock screw ring, and the crown is supported by the lock screw ring so as to be movable in an axial direction. The extrusion spring biases the lock screw spring toward the crown. The regulator regulates the lock screw ring to be located at a predetermined position against a biasing force of the extrusion spring, and holds the crown engaging with the lock screw ring so as to stay at a normal hand operation position.

公开(公告)号：US20180259910A1

公开(公告)日：2018-09-13

申请号：US15914706

申请日：2018-03-07

Applicant: Seiko Instruments Inc.

Inventor： Katsunobu IGUCHI ,  Ryo HATTORI ,  Yasunori HARA

IPC: G04D1/00 ,  G04D1/10

CPC classification number: G04D1/0042 ,  G04D1/10

Abstract: A portable apparatus component fixation structure which helps to secure the positioning accuracy for a second member (a mounted member) and which makes it possible to easily mount the second member is to be provided. A fixation structure is equipped with a fixation portion provided on a main plate and a regulating portion formed on a display plate. The fixation portion has a first pin and a second pin. The second pin has an inclined surface. The inclined surface is a surface generating a pressing force toward the regulating portion as the display plate approaches the main plate. Locking is effected in a state in which the regulating portion is held between the first pin and the second pin.

公开(公告)号：US20170212474A1

公开(公告)日：2017-07-27

申请号：US15410274

申请日：2017-01-19

Applicant: Seiko Instruments Inc.

Inventor： Katsunobu IGUCHI

IPC: G04B37/00

CPC classification number: G04B37/0008 ,  G04B37/084

Abstract: A timepiece in which the width of an edge member mounted to a case band while supporting a transparent member is small is provided. A case accommodating a dial is equipped with an edge portion arranged outside a case band of the case, a cylindrical portion arranged inside the case band, and an edge member having a receiving portion. The edge portion supports a transparent member. The cylindrical portion supports the peripheral portion of the dial from the front side of the case and prescribes the display diameter D of the dial. The receiving portion protrudes from the outer periphery of the cylindrical portion or from the cylindrical portion toward the rear surface side of the case. The edge member is mounted to the case band by a drawing-in mechanism equipped with a drawing-in member and a drawing-in screw.