Seikoh Giken Co., Ltd.

Seiko Instruments Inc

Sanwa Denki Kogyo Co., Ltd.

Telegraph and Telephone Corporation

Nippon Telegraph and Telephone Corporation and Seikoh Giken Co., Ltd.

Seiko Instruments Inc., Nippon

Junji Taira

Kouji Minami

Masayuki Jibiki

Masahiro Nakajima

Norimasa Arai

Hiroyuki Tokita

Yohei Takaishi

Nobuo Suzuki

Tatsuo Koshigoe

Naotoshi Shiokawa

Ryo Nagase

Tomohiro Yoshikawa

Koji Minami

Syuichi Yanagi

Yoshitaka Enomoto

Shin Sumida

Shuichiro Inagaki

Mitsuo Yarita

Taisei Miyake

Yuji Shinagawa

Yasunari Kawasaki

Muneo Kawasaki

Shuichi Takashi

Hisayuki Hirayama

Yoshihisa Kurakami

Masaji Suwabe

Hidekazu Onouchi

Yuko Hata

A tool for a plug, including a plug body fitted to an adapter and a slider supported on the plug body, includes an insertion portion and a handle. The insertion portion is configured to catch the slider. The handle extends in a direction opposite to the insertion portion. The handle includes a fragile part having a locally small cross-sectional area perpendicular to the direction in which the handle extends.

Tool for plug, slider, plug, and cable with plug

Optical fiber connector

A tool for a plug to which a cable having its basal end covered with a boot is attached is disclosed. The plug includes a plug body fitted to an adapter and a slider supported on the plug body. The tool includes an insertion portion that catches the slider, and a boot surrounding part that has a sleeve-like shape and accepts insertion of the cable and the boot, to accommodate the boot while the insertion portion is catching the slider. The boot surrounding part includes a slit extending along an entire length in an axial direction of the boot surrounding part and having a width greater than a diameter of the cable and smaller than a maximum diameter of the boot. While the insertion portion is catching the slider, the boot surrounding part is positioned inner than an outermost shape line of the plug as seen in the axial direction.

A duplex optical connector plug includes: a first engagement latch being elastically deformable and including a first abutting projection configured to abut on a front end of a first top wall and a first engagement part formed on an axial rear side of the first abutting projection and configured to engage with an optical connector adaptor when the first optical connector assembly is inserted into the optical connector adaptor; and a second engagement latch being elastically deformable and including a second abutting projection configured to abut on a front end of a second top wall and a second engagement part formed on an axial rear side of the second abutting projection and configured to engage with the optical connector adaptor when the second optical connector assembly is inserted into the optical connector adaptor.

Duplex optical connector plug

A connector plug, having: a plug body that houses an optical fiber inside; a latch that is supported on an outer surface of the plug body to be capable of being engaged with the adapter; a slider that is supported on the plug body to be slidable with respect to the plug body; and a stopper that is detachably attachable between the plug body and the slider, wherein the slider is capable of elastically deforming the latch toward the outer surface of the plug body, when the slider is slid in a detaching direction which is a direction of drawing the connector plug out of the adapter, the slider elastically deforms the latch toward the outer surface of the plug body, and when the stopper is attached between the plug body and the slider, the stopper restricts the slider from elastically deforming the latch toward the outer surface of the plug body.

Connector plug and stopper for connector plug

A connector plug has a connector plug body, a slider supported on the connector plug body and a jig attachable to the slider. The jig has an insertion portion which can be inserted into a slot of the slider and an operation portion extended from the insertion portion. The insertion portion has first and second insertion portions separated from each other by a predetermined distance. The slider can be moved in the detaching direction when the jig is moved in the detaching direction in a state that a first locking portion of the first insertion portion and a second locking portion of the second insertion portion are locked to the inner wall of the slot, and the locked state of the first locking portion and the second locking portion can be released when a force is applied to the operation portion in an inside direction to shorten the predetermined distance.

Jig for connector plug, connector plug and cable with connector plug

The present invention provides an optical connector capable of fixing the tensile strength fibers of the optical cable to the optical connector while keeping the tensile strength sufficiently without sacrificing the easiness of assembling the optical connector. The optical connector The optical connector is configured to be attached to an optical cable having an optical fiber and tensile strength fibers extending along a longitudinal direction of the optical fiber, having: a connector body having a male screw; and a fixing member used for fixing the tensile strength fibers to the connector body, the fixing member having a female screw, wherein the tensile strength fibers are configured to be interposed between the male screw and the female screw and fixed to the connector body when the male screw formed on the connector body and the female screw formed on the fixing member are screwed with each other, and the male screw has a notch extending in a direction crossing a screw thread of the male screw.

Optical connector

Provided is an optical connector plug which, even when a predetermined load is applied to a plug frame and the plug frame is warped to a vertical upper side of a guide protrusion portion, prevents disengagement of an engagement head and an optical conductor adaptor. In an optical connector plug, an axial front end of an engagement head of an engagement latch is separated axially rearward from an axial rear end of a guide protrusion portion, and is close to the axial rear end of the guide protrusion portion. According to the optical connector plug, when a predetermined load is applied to a plug frame and the plug frame is warped to a vertical upper side of the guide protrusion portion, the axial front end of the engagement head is supported by the axial direction rear of the guide protrusion portion, so that the engagement head is prevented from moving vertically downward from the guide protrusion portion.

Optical connector plug and duplex optical connector plug

In a duplex optical connector plugA, when one of first and second optical connector assembliesis rotated around its axis in a clockwise direction or a counterclockwise direction, a rotational force of one of first and second gears is transmitted to the other of the gears by an intermediate gear. Thereby, interlockingly with the one of the optical connector assemblies, the other of the optical connector assembliesis rotated around its axis in the clockwise direction or the counterclockwise direction which is the same direction as the optical connector assemblies

Duplex optical connector plug and polarity reversal method of duplex optical connector plug

Ferrule polishing method of duplex optical connector plug

A plug attached to a terminal part of a cable includes a plug main body engaged to an adaptor, a slider and a tool. The tool includes an insertion portion having a tapered part and an engaging projection and an operation part. When the operation part is pulled with a second surface of the insertion portion inserted in a slot being disposed in parallel with an extraction direction, the engaging projection is engaged with an engaging portion of the slider, the slider is moved integrally with the tool and the plug main body is pulled out from the adaptor. When the operation part is pulled with an inclined surface of the tapered part being disposed in parallel with the extraction direction, the engaging projection is released from an engaging state with the engaging portion and the tool is detached from the slider.

Tool for plug, plug and cable with plug

A plug attached to a terminal part of a cable includes a plug main body to be connected to an adaptor, a latch, which is provided at the plug main body so as to be elastically displaceable from an outside of the plug main body toward an outer surface of the plug main body and which is engaged to the adaptor, and a slider including a cover part that is disposed at the outside of the latch. When the cover part is pushed down toward the outer surface or when the slider is moved in an extraction direction in which the plug main body is to be extracted from the adaptor, the latch is pushed down toward the outer surface and the engaging state of the latch is released.

Plug and cable with plug

An optical connector assembly and an optical connector adapter with a shutter each provide better heat radiation performance by blocking light outputted from a first optical fiber held by a first optical connector plug with a shutter thereby controlling temperature of an adapter body of the optical connector adapter not to exceed a prescribed level even when light having optical high power is outputted from the first optical fiber for about 15 minutes. An countermeasure against the light having optical high power is provided in a side wall of one of first and second receiving holes to be irradiated with the light outputted from the first optical fiber toward the second receiving hole and reflected thereafter by the shutter plate disposed in one of the first and second receiving holes.

Optical connector assembly and optical connector adapter with shutter

In the optical connector plug, a length from the end face of the capillary of the ferrule to the front end surface of the flange in the axial direction is larger than a length from the front end of the forward portion of the first accommodation space of the plug frame to the rear end surface of the rearward portion of the plug frame in the axial direction, and in a state in which the front end surface of the flange is in contact with the rear end surface of the plug frame, the end face of the capillary is located in the second accommodation space.

Optical connector plug

In an optical connector plug, a front end of the shutter member can move between a shield position to shield a front end face of a ferrule in an extension state and a non-shield position to expose the front end face of the ferrule to the front side of a housing in a reduction state, when a plug frame and a shutter holding member move between the extension state and the reduction state. In the optical connector plug, in a course in which the shutter holding member is engaged with holding portions protruding in an axial direction of the optical connector adaptor and a grip member moves from the extension state to the reduction state, the front end of the shutter member is spaced to face front ends of the holding portions in the axial direction.

Growing community of inventors

Chiba, Japan

Junji Taira