JPWO2021041305A5

JPWO2021041305A5 -

Info

Publication number: JPWO2021041305A5
Application number: JP2022513389A
Authority: JP
Publication date: 2023-09-05

Claims

A fiber optic connector system comprising:
a connector core including a front end defining a plug portion and a rear end defining a cable anchorage location, said connector core including a core seal;
A first ruggedized outer assembly configured to be mounted over the connector core, wherein the first ruggedized outer assembly includes a first ruggedized outer assembly, the core seal between the connector core and the first shroud; a first shroud configured to be mounted over the connector core in a manner to provide a seal between the first shroud and the first ruggedized fiber optic adapter; and a front end including a first keying arrangement for rotatably keying said first shroud, said first ruggedized outer assembly also supporting said first ruggedized outer assembly. said first shroud including a first ruggedized fastening element for securing to said first ruggedized fiber optic adapter, said first shroud adjacent a rear end of said first shroud; a first ruggedized exterior assembly having a first exterior coupling arrangement on the exterior of the
a second ruggedized outer assembly configured to be mounted over the connector core, wherein the second ruggedized outer assembly includes a second ruggedized outer assembly configured to seal the core seal between the connector core and the second shroud; a second shroud configured to be mounted over the connector core in a manner to provide a seal between the second shroud and the second ruggedized fiber optic adapter; and a forward end including a second keying arrangement for rotatably keying said second shroud, wherein said first keying arrangement is different than said second keying arrangement. and the second ruggedized outer assembly also includes a second ruggedized fastening element for securing the second ruggedized outer assembly to the second ruggedized fiber optic adapter. wherein said first heavy duty fastening element has a different fastening configuration than said second heavy duty fastening element and said second shroud is adjacent an aft end of said second shroud having a second external coupling arrangement external to the second shroud;
the first ruggedized outer assembly is operable in combination with the connector core to make the fiber optic connector system compatible with the first ruggedized fiber optic adapter;
the second ruggedized outer assembly is operable in combination with the connector core to make the fiber optic connector system compatible with the second ruggedized fiber optic adapter;
The connector core has a form factor that complements the form factor of the third ruggedized fiber optic adapter such that the connector core is capable of providing the third ruggedized fiber optic adapter without the use of a ruggedized external assembly. and the core seal is directly compatible with the third ruggedized fiber optic adapter and the connector when the connector core is inserted into the third ruggedized fiber optic adapter. a second ruggedized fiber optic adapter that provides a seal between a core and wherein the third ruggedized fiber optic adapter includes a third external coupling arrangement external to the third ruggedized fiber optic adapter an external assembly;
A pivoting fixed fastener carried by said connector core, wherein: a) said connector core is attached to said first shroud by inserting said pivoting fixed fastener onto said aft end of said first shroud; connecting said pivot fixed fastener with said first external connection arrangement by connecting to a shroud and pivoting said pivot fixed fastener relative to said first shroud; b 2.) connecting said connector core to said second shroud by inserting said pivot fixed fastener onto said aft end of said second shroud ; c) connecting said pivot locking fastener with said second external connection arrangement by pivoting it relative to the shroud of said third ruggedized fiber optic adapter; connecting the connector core to the third ruggedized fiber optic adapter by inserting a pivoting fixed fastener, and connecting the pivoting fixed fastener to the third ruggedized fiber optic adapter; a pivot lock fastener for connecting the pivot lock fastener with the third external connection arrangement by pivoting with the
The first, second and third external coupling arrangements are circumferentially around the exterior of the first and second shrouds and around the outer circumference of the adapter body of the third ruggedized fiber optic adapter. having an axial retention arrangement including a plurality of axial retention stops positioned at
said pivotally fixed fastener having an internal coupling arrangement adapted to couple with said first, second and third external coupling arrangements;
A coupling interface between the internal coupling arrangement and the external coupling arrangement is adapted to prevent rotation between the pivotally fixed fastener and a corresponding mated portion of the external coupling arrangement. providing one interlocking feature and a second interlocking feature providing axial fixation of said pivot lock fastener;
the first interlocking feature is provided by a snap-fit arrangement;
wherein the internal coupling arrangement includes a plurality of angled snap-fit features uniformly spaced about a central axis of the pivot locking fastener;
each of said ramp snap-fit features includes a ramp surface and a stop surface;
said internal coupling arrangement having an axial retention arrangement including a plurality of axial stops evenly spaced about said central axis;
Fiber optic connector system.

The fiber optic connector system of Claim 1, wherein said first keying arrangement comprises an open-ended slot and said second keying arrangement comprises a paddle .

3. The fiber optic connector system of claim 1 or 2, wherein the first heavy duty fastening element comprises a bayonet style fastening sleeve and the second heavy duty fastening element comprises a threaded coupling nut. .

A cable is anchored to the rear end of the connector core, optical fibers of the cable are supported by ferrules positioned in the plug portion of the connector core, and a shape memory heat shrink sleeve is positioned between the cable and the connector. The fiber optic connector system of claim 1, wherein the fiber optic connector system provides a seal with the core.

The connector core includes a core housing extending from the front end to the rear end, the connector core projecting radially outward from the body of the core housing and along at least twenty-five percent of the length of the core housing. 2. The fiber optic connector system of claim 1, including an elongated keyed rail extending along the length of the rail.

6. The fiber optic connector system of claim 5, wherein a forward end of said elongated keyed rail is offset from said forward end of said core housing and a rearward end of said elongated keyed rail is located adjacent said core seal.

4. The body of the core housing defines a flat extending along at least 20% of the total length of the core housing from the forward end of the elongated keying rail to the forward end of the core housing. 7. The optical fiber connector system according to 6.

The fiber optic connector system of claim 1, wherein the core seal is positioned rearwardly of the longitudinal midpoint of the connector core.

2. The method of claim 1, wherein the first and second external connection arrangements have a first configuration and the third external connection arrangement has a second configuration different than the first configuration. Fiber optic connector system.

10. The first configuration is adapted for single use with the pivot fixed fastener and the second configuration allows for multiple use with the pivot fixed fastener. The fiber optic connector system according to .

The first arrangement holds the pivot fixed fastener in a coupled condition with respect to the first or second shroud and couples the pivot fixed fastener from the coupled condition. 11. The fiber optic connector system of claim 10, including a snap-fit retention element that must be broken in order to rotate to the unloaded condition.

While the second configuration includes a detent retention element, the detent retention element retains the pivotally fixed fastener in a coupled condition with respect to the third ruggedized fiber optic adapter. 12. The pivotal locking fastener according to claim 11, which allows said pivotal locking fastener to be rotated from said coupled condition to an uncoupled condition without requiring destruction of said detent retaining element. Fiber optic connector system.

An optical fiber connection device,
A connector core comprising a core housing and a seal mounted on said core housing for sealing against a structure adapted to receive said connector core, said structure comprising: a shroud; an optical fiber; a connector core including an adapter or dust cap;
a pivot stationary fastener mounted on the connector core to secure the connector core to the structure, the seal being positioned within the interior of the pivot stationary fastener ;
the pivot fix fastener having an internal interlocking arrangement including a plurality of angled snap fit features uniformly spaced about a central axis of the pivot fix fastener;
each of said ramp snap-fit features includes a ramp surface and a stop surface;
wherein the internal coupling arrangement has an axial retention arrangement including four axial stops evenly spaced about the central axis within the pivot fixed fastener;
a pivotal fixation fastener;
An optical fiber connection device comprising:

14. The optical fiber splicing device of claim 13, wherein the seal is located in the rear third of the length of the connector core and a ferrule is positioned at the front end of the connector core.

14. The fiber optic splice device of claim 13, further comprising an elongated key integrated with said core housing extending forwardly from said seal.

An optical fiber connection device,
A fiber optic adapter comprising a body having a first end defining a ruggedized connector port and a second end defining a non-ruggedized connector port, said body having a cut of 150 square millimeters or less. configured to be mounted within a mounting opening having an area ;
said body having a keyway for receiving an elongated key defined by a connector core;
said keyway is defined by two helical shoulders rotating in opposite helical directions about a central longitudinal axis of said body;
The two helical shoulders are formed on the connector core when the connector core is inserted into the ruggedized connector port along a rotational range of travel of at least 180 degrees, 170 degrees, 135 degrees, or 90 degrees. provide a rotating guide,
further comprising a retaining collar configured to be mounted on the exterior of the body;
the retaining collar is movable between an extended position and a retracted position;
In the extended position, the retention member inside the retention collar prevents rotation of the pivot lock fastener from a coupled rotational position to an uncoupled rotational position.
Fiber optic connection device.

17. The optical fiber splicing device of claim 16, wherein the ratio of the cross-sectional area of the mounting opening to the length of the optical fiber adapter in millimeters is 3 or less.

The fiber optic adapter includes an external retention arrangement adjacent the first end, the external retention arrangement including snap-fit features and a plurality of axial stops positioned about the circumference of the body . 17. The optical fiber splicing device of claim 16, also comprising:

19. The optical fiber splicing device of claim 18, wherein the body defines an internal holder for holding a ferrule alignment sleeve.

The body includes a flange and an externally threaded portion, and the mounting opening is defined through a wall, the wall connecting the flange and the externally threaded portion when the body is mounted within the mounting opening. 20. The optical fiber splicing device of claim 19, compressed between a threaded nut.

16. The optical fiber splicer of claim 15, wherein said elongated key extends along at least 25% of the length of said core housing.

an outer jacket attached to the core housing by a sleeve;
14. A pivot fixed fastener is axially captured between an outer stop of said core housing and a front end of said sleeve, said pivot fixed fastener being retained in said core housing. fiber optic connection equipment.

an outer stop positioned adjacent the cable attachment end of the core housing, the outer stop forward for providing a stop for stopping insertion of the connector core into the fiber optic adapter; 14. The fiber optic splicing device of claim 13, having a positive stop surface facing the rear and a positive stop surface facing rearwardly for axial retention of the pivot fixed fastener.

The plurality of axial retention stops are circumferentially positioned around the exterior of the first and second shrouds and around the outer circumference of the adapter body of the third ruggedized fiber optic adapter. 2. The fiber optic connector system of claim 1, having two axial retention stops .