JP3376829B2 - Cleaning tool for back panel connector - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a cleaning tool for easily cleaning a connector end face on a back panel side of a back panel connector used for optical communication. [0002] With the spread of communication using optical fibers, optical connectors are increasingly used for connecting optical fibers in optical communication equipment. In the connection of an optical connector, the presence of foreign matter between connector end faces causes connection loss, and further causes damage to the connector end face and the optical fiber end face. For this reason, in connector connection, cleaning of the connector end face is a very important problem. Until now, various cleaning tools for cleaning the end face of the connector have been proposed and put to practical use. However, in the case of a connector mounted on an apparatus such as a unit having a large number of printed board boards, a back panel side has been proposed. Since the connector is located in a recessed position and the printed boards are dense, it is difficult to clean the end face of the connector using these cleaning tools. In addition, there is another problem that it is necessary to remove another printed board substrate for cleaning. As a solution to these problems, Japanese Patent Application No. 59-110939 discloses an optical connector cleaning jig as a cleaning tool for cleaning a back panel type connector using a single-core SC connector. No. 60-256103) has been proposed. This cleaning tool is provided so that the pipe can be rotated on a guide plate having the same shape as the printed board, and a cleaning tool is attached to the end of the pipe and rotated. Since the ferrule end face to be cleaned is small and the ferrule end face is circular like an SC connector, the ferrule end face has a structure suitable for a circular shape. Further, there is a problem that the cost is increased due to the structure. SUMMARY OF THE INVENTION An object of the present invention is to easily clean the end face of a multi-core connector attached to a back panel without removing the connector and without removing another printed board substrate. It is to provide a cleaning tool that can be used. [0006] In order to achieve the above object, the cleaning tool of the present invention includes a member having a soft tip for wiping dust or a ventilation hole for blowing or sucking dust. A first operating rod support frame having a thin operating rod configured to be attached to the distal end of the operating rod, an insertion portion on the surface for inserting the operating rod, and an insertion hole larger than the operation rod insertion portion of the support frame A second operating rod supporting frame having a portion, wherein the operating rod is configured to support the operating rod so as to be capable of leverage movement within a range of the insertion portion of the second supporting frame with the first supporting frame as a fulcrum. A support substrate, wound around the distal end of the operating rod outside, one end fixed to the distal end of the operating rod, and the other end fixed to a first operating rod support frame provided on the operating rod support substrate. And a coil spring. According to such a cleaning tool of the present invention, the first
In addition, the user can insert the printed board on which the second operation rod support frame and the board on which the operation rod is mounted are inserted into the unit and operate the operation rod to perform cleaning. Furthermore, by using the principle of leverage, the end face of the connector can be cleaned over a wide area. By using the principle of leverage, if a spring is used, the cleaning portion of the cleaning tool can always be brought into contact with the connector end face with a sufficient pressing force, so that cleaning is insufficient at both ends of the connector end face. Never. In the present invention, a pipe-shaped operating rod is used and combined with a dust cleaner filled with pressurized air to remove not only connector end faces but also dust and the like in pin holes of small connectors such as MT connectors. can do. Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a back panel type multi-core connector to which the cleaning tool of the present invention is applied. In FIG.
11 is a multi-core optical fiber tape, 12 is a multi-core MPO plug on the printed board side, 13 is a printed board, 14 is a printed board housing, 15 is a back panel, 16 is a back panel housing, and 17 is a multi-core MPO type on the back panel side plug,
18 is a guide rail. Printed board housing 14
The multi-core MPO type plugs 12 and 17 mounted on the back panel housing 16 are connected via the housings by abutting the printed board 13 against the back panel 15 along the guide rails 18. FIG. 2 is a perspective view showing an application example of an embodiment of the cleaning tool of the present invention. In this embodiment, a printed board 29 to which a cleaning tool 20 is attached is mounted instead of the printed board 13 of FIG. The cleaning tool 20 includes the substrate 21 and the operating rod.
The operation rod 22 is provided on the surface of the substrate 21 and is supported by first and second operation rod support frames 23 and 27 which constitute an operation rod insertion portion, and the operation rod of a second operation rod support frame 27 is provided. The insertion portion is made larger than the operation rod insertion portion of the first operation
Can be leveraged within the range of the operation rod insertion portion of the second operation rod support frame 27 using the first operation rod support frame 23 as a fulcrum. At the tip of the operation rod 22, a member 28 having a soft tip for wiping dust or a member 31 having a ventilation hole for blowing off or sucking dust is attached,
When the printed board 29 was abutted against the back panel 15 along the guide rail 18, the printed board housing 30 and the back panel housing 16 were fitted, and the printed board housing 30 was attached to the connector surface in the printed board housing 30 at the tip of the operating rod 22. The member 28 or 31 contacts the connector end face in the back panel housing 16. FIGS. 3 and 4 are perspective views showing an embodiment of the cleaning tool of the present invention. In this embodiment, at the tip of the operating rod 22,
A case where a member 28 having a soft tip for wiping dust is mounted is shown. In the figure, 21 is a substrate, 24 is a coil spring, 25 is the tip of the operating rod 22, and 26 is the rear end of the operating rod 22. FIG. 4 shows the member 28 having a soft tip
The figure shows the camera attached to 25. When the printed board 29 is pressed against the back panel 15 along the guide rail 18 (FIG. 2), the coil spring
By the action of 24, the member 28 contacts the connector end face in the printed board housing 16 with an appropriate pressing force. The coil spring 24 is wound around the distal end of the operating rod 22, one end is fixed to the distal end 25 of the operating rod, and the other end is fixed to the operating rod support frame 23 provided on the substrate. In this state, the rear end portion 26 of the operating rod 22 is
As shown by the arrow in FIG. 5, when the lever is moved up and down along the insertion portion of the second operating rod support frame 27, the tip of the operating rod 22 moves up and down like a lever with the first operating rod support frame 23 as a fulcrum. Movement, member 28
Moves on the end face of the connector to be cleaned. At this time, the tip of the member 28 is always kept pressed against the connector end face by the pressing force of the coil spring 24, so that the connector end face can be cleaned over a wide range. As the member 28, for example, a cotton swab may be used, but it is convenient to use a similar product "Crechip". FIG. 5 is a view showing another embodiment, in which an operating rod is provided.
A pipe is used as 22, and a member 31 having a ventilation hole for blowing off or sucking dust is attached to the tip of the pipe, and air is sent from the rear end of the pipe 22 by a commercially available dust cleaner 32, for example. By blowing out from the member 31, dust on the connector end face, particularly dust on pin holes of the MPO plug can be blown off and removed. If the rear end of the pipe 22 is decompressed, dust can be sucked and removed. As described above, according to the cleaning tool of the present invention, the end face of the connector mounted on the back panel side of the back panel type multi-core connector can be removed from the back panel. And can be cleaned without affecting other printed board substrates. Further, at this time, the connector can be cleaned with the same accuracy as when the connector is removed from the back panel and cleaned. Further, unlike the conventional cleaning tool of this type, the cleaning tool can be easily attached to a printed board, can be applied to a multi-fiber connector, and has an excellent effect that the structure is simplified and the cost can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a back panel type multi-core connector to which the cleaning tool of the present invention is applied. FIG. 2 is a perspective view showing an application example of an embodiment of the cleaning tool of the present invention. FIG. 3 is a perspective view showing an embodiment of the cleaning tool of the present invention. FIG. 4 is a perspective view showing an embodiment of the cleaning tool of the present invention. FIG. 5 is a perspective view showing another embodiment of the cleaning tool of the present invention. DESCRIPTION OF THE REFERENCE NUMERALS 11 Multi-core optical fiber tape 12 Multi-core MPO type plug 13 on print board 13 Print board 14 Print board housing 15 Back panel 16 Back panel housing 17 Multi-core MPO plug 18 on back panel 18 Guide rail 20 Cleaning tool 21 Substrate 22 Operating rod 23 First operating rod support frame 24 Coil spring 25 Tip 26 of operating rod 22 Rear end portion 27 of operating rod 22 Second operating rod supporting frame 28 Member having soft tip 29 Print board 30 Print Board housing 31 Member having ventilation hole 32 Dust cleaner

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-256103 (JP, A) JP-A-54-4150 (JP, A) JP-A-8-106027 (JP, A) 132903 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G02B 6/36

Claims (1)

(1) A thin member configured so that a member having a soft tip for wiping dust or a member having a ventilation hole for blowing or sucking dust can be attached to the tip. An operation rod, a first operation rod support frame having an insertion portion for inserting the operation rod on a surface thereof, and a second operation rod support frame having an insertion portion larger than the operation rod insertion portion of the support frame. An operating rod support substrate configured to support the operating rod so as to be capable of leverage movement within a range of the insertion portion of the second support frame with the first support frame serving as a fulcrum; And a coil spring fixed at one end to a distal end portion of the operating rod, and the other end fixed to a first operating rod support frame provided on the operating rod support substrate. Cleaning tool for type connector.