JP5364604B2 - Optical connector cleaning tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical connector cleaning tool that can perform full cleaning by securing movement of a cleaning body, and that, moreover, can smoothly supply the cleaning body which is to be moved. <P>SOLUTION: The optical connector cleaning tool 1 includes a tool body 10 and an extension part 20. The extension part 20 has an extending cylindrical body 21 and a head member 23. In the tool body 10, a rotating mechanism is assembled provided with a support 51 and a rotating shaft 52. The rotating shaft 52 includes a rotating cylindrical part 82 having a cam groove 85 into which the inserting projection 54 of the support 51 is inserted, and a guide cylindrical part 81, in which the head member 23 is mounted at the tip. The rotating cylindrical part 82, when the case body 11 is moved in the extending direction together with the support 51, makes the head member 23 rotate about the shaft by movement, along the cam groove 85. A part 86, on one end of the cam groove 85m is formed so as to make the rotating cylindrical part 82 rotate in one direction, while a part 87 at the other end is formed so as to make the rotating cylindrical part 82 rotate, in a direction different from the one direction. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an optical connector cleaning tool for cleaning a joining end surface of an optical connector with a cleaning body such as cloth.

When connecting optical connectors, dirt or foreign matter on the joint end face may cause damage during attachment or increase in transmission loss, so it is necessary to clean the joint end face prior to butt connection. is there.
For cleaning the joining end face of the optical connector, an optical connector cleaning tool that wipes off dirt and the like by bringing a cleaning body such as a cloth into contact with the joining end face is used.
As an optical connector cleaning tool, there is an optical connector cleaning method in which a cleaning body is moved and brought into contact with a joining end surface of an optical connector (see, for example, Patent Document 1).

JP 2005-215045 A

In the conventional optical connector cleaning tool, there is a fear that the cleaning of the joining end face of the optical connector may be insufficient due to the reduced amount of movement of the cleaning body.
Moreover, in the optical connector cleaning tool, it is desired that the cleaning body to be moved and moved is supplied smoothly without being entangled.
The present invention has been made in view of the above circumstances, and provides an optical connector cleaning tool that can ensure sufficient amount of movement of the cleaning body and perform sufficient cleaning, and can smoothly supply the cleaning body that is moved and moved. It is an object.

The invention according to claim 1 of the present invention is an optical connector cleaning tool for wiping and cleaning the joining end surface of the optical connector with a cleaning body that is moved and moved, and includes a feeding mechanism that supplies and removes the cleaning body. A tool body having a case body and an extension part extending from the tool body, the extension part projecting from an extension cylinder and a tip of the extension cylinder, and A rotation mechanism that rotates the head member about its axis, and the rotation mechanism is positioned with respect to the case body, and a support member that is pressed against the joining end surface. A rotating shaft on which the head member is mounted, and the rotating shaft extends in the extending direction from the rotating tube portion, the rotating tube portion having a cam groove into which the insertion convex portion of the support is inserted. Before that tip A guide tube portion on which a head member is mounted, and the rotating tube portion extends along the cam groove when the case body is moved together with the support body in the extending direction with respect to the extending portion. The cam member is formed to rotate by movement to rotate the head member about an axis, and a part of the cam groove is formed to rotate the rotating cylinder part in one direction, and at least a part of the other part. Is an optical connector cleaning tool formed so as to rotate the rotating cylinder portion in a direction different from the one direction.
According to a second aspect of the present invention, in the first aspect, the cam groove is formed such that a portion including one axial end portion of the rotary cylinder portion rotates the rotary cylinder portion in one direction. The other part is an optical connector cleaning tool formed to rotate the rotating cylinder part in a direction different from the one direction.
According to a third aspect of the present invention, in the first or second aspect, the cam groove of the portion that rotates the rotating cylinder portion in one direction is formed in a spiral shape in this direction, and the rotating cylinder portion is arranged in the one direction. The cam groove of the portion rotated in a direction different from the direction is an optical connector cleaning tool formed in a spiral shape in this direction.
According to a fourth aspect of the present invention, in any one of the first to third aspects, the cam groove of a portion that rotates the rotating cylinder portion in one direction and the rotating cylinder portion in the one direction The cam groove of the part rotated in a different direction is an optical connector cleaning tool whose forming angle around the axis is less than 360 °.
According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the extending cylindrical body extends in the extending direction by a cylindrical base portion and a biasing means with respect to the cylindrical base portion. A distal end cylindrical portion that is biased, the distal end extending portion can protrude from the distal end of the distal end cylindrical portion, and the distal end cylindrical portion moves in the extending direction with respect to the cylindrical body base portion. By this, it is an optical connector cleaning tool which can adjust the protrusion amount of the tip extension part.

According to the present invention, a part of the cam groove of the rotating cylinder part is formed so as to rotate the rotating cylinder part in one direction, and the other part rotates the rotating cylinder part in a direction opposite to the above direction. Therefore, even when the angle of formation of each of these portions in the direction around the axis is small, a large amount of rotation can be ensured by a single operation, and sufficient wiping and cleaning can be performed.
Moreover, since the formation angle of each part of the cam groove can be reduced, the rotation angle of each direction of the rotary shaft can be reduced. For this reason, it can prevent that the cleaning body of a sending direction and the cleaning body of a taking-off direction become entangled inside a rotating shaft. Therefore, a cleaning body can be supplied smoothly and a reliable cleaning operation can be performed.

It is a perspective view of one embodiment of the optical connector cleaning tool of the present invention. It is a disassembled perspective view of a cleaning tool. It is a perspective view which shows a support body. It is a perspective view which shows the rotating shaft of a rotating mechanism. It is a perspective view which shows a head member. It is a top view of the partial cross-section state which shows the rotating shaft and the head member attached to the front-end | tip. It is a side view of the partial cross-section state which shows a rotating shaft and the head member attached to the front-end | tip. It is a disassembled perspective view which shows a feed mechanism. It is a perspective view which shows an extension cylinder. It is a disassembled perspective view which shows an extension cylinder. It is explanatory drawing which shows operation | movement of a head member. It is explanatory drawing which shows operation | movement of a head member. It is explanatory drawing which shows operation | movement of a head member. It is explanatory drawing which shows operation | movement of a rotating shaft. It is a figure which shows typically the other example of a rotation mechanism. It is a figure which shows typically the other example of a rotation mechanism.

Hereinafter, an optical connector cleaning tool (hereinafter also simply referred to as “cleaning tool”) embodying the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a cleaning tool 1 which is an embodiment of the optical connector cleaning tool of the present invention. FIG. 2 is an exploded perspective view of the cleaning tool 1. FIG. 3 is a perspective view showing the support 51. FIG. 4 is a perspective view showing the rotating shaft 52 of the rotating mechanism 5. FIG. 5 is a perspective view showing the head member 23. FIG. 6 is a plan view in a partially sectional state showing the rotating shaft 52 and the head member 23 attached to the tip of the rotating shaft 52. FIG. 7 is a side view of the rotating shaft 52 and the head member 23 attached to the tip thereof in a partially sectional state. FIG. 8 is an exploded perspective view showing the feed mechanism 3. FIG. 9 is a perspective view showing the extended cylindrical body 21. FIG. 10 is an exploded perspective view showing the extended cylindrical body 21.

As shown in FIGS. 1 and 2, the cleaning tool 1 includes a tool body 10 and an extending portion 20 that extends from the tool body 10.
In the following description, the front end direction (extending direction) of the extending portion 20 shown in FIG. 1 may be referred to as the front, and the opposite direction may be referred to as the rear.

As shown in FIGS. 1 and 2, the tool body 10 is provided with a feed mechanism 3 that supplies and winds the cleaning body 2 and a rotation mechanism 5 that rotates the head member 23 in the case body 11. .
The case body 11 is formed in a cylindrical shape having a substantially rectangular cross section, and a positioning opening 12 into which the positioning convex portion 57 is inserted is formed at one rear portion of the four side plate portions 11a.
The positioning opening 12 is formed in a slit shape along the front-rear direction. First and second fitting recesses 13 and 14 into which the positioning protrusions 57 are fitted are formed on the front and rear side edges of the positioning opening 12.
At the front end of the case body 11, an insertion port 11 b through which the extending portion 20 is inserted is formed.

As shown in FIG. 2, the rotation mechanism 5 includes a support body 51 that is positioned with respect to the case body 11 and a rotation shaft 52 that can rotate around an axis.
As shown in FIG. 3, the support 51 includes a long plate-like substrate 53 extending in the front-rear direction, an insertion convex portion 54 formed to protrude from the inner surface 53 a of the front end portion of the substrate 53, and both side edges of the substrate 53. And a rear end plate 58 formed so as to extend from the rear edge of the substrate 53 to the inner surface 53a side.
On one side plate 55, a sawtooth gear receiving portion 56 is formed.
The gear receiving portion 56 includes a plurality of receiving tooth portions 56 a that are formed on one side plate portion 55 so as to protrude toward the other side plate 55. The receiving tooth portions 56 a are arranged in the length direction (front-rear direction) of the support body 51.
A holding convex portion 59 is formed on the front surface 58 a of the rear end plate 58.

The insertion convex portion 54 is formed in a substantially cylindrical shape, and its protruding height and outer diameter are set so as to be fitted in the cam groove 85 of the rotary cylinder portion 82.
A plate-like elastic piece 65 is formed at the rear portion of the substrate 53, and a positioning convex portion 57 is formed to protrude upward (outward) on the upper surface (outer surface) of the rear end portion of the elastic piece 65 (FIG. 2). And FIG. 3).

As shown in FIG. 4, the rotating shaft 52 includes a rotating cylinder part 82 and a guide cylinder part 81 extending forward from the front end of the rotating cylinder part 82.
An insertion hole 83 through which the cleaning body 2 is inserted is formed in the rotation shaft 52 from the front end of the guide cylinder portion 81 to the rear end of the rotation cylinder portion 82.
The guide tube portion 81 is formed in a substantially cylindrical shape, and the insertion portion 91 of the head member 23 can be inserted into the insertion hole 83 at the front end portion. The inner surface of the front end portion of the guide tube portion 81 is a rotation stop portion 84 formed flat.

The rotary cylinder portion 82 is formed in a substantially cylindrical shape, and a cam groove 85 is formed on the outer surface from the rear end 82a in the axial direction to the front end 82b.
The cam groove 85 includes a portion on one end side in the axial direction of the rotary cylinder portion 82, that is, a portion on one end side formed in a portion from the rear end 82a to the center portion in the axial direction, and a portion on the other end side in the axial direction, And a second end portion 87 formed in a portion from the central portion in the axial direction to the front end 82b.

At least a part of each of the one end side portion 86 and the other end side portion 87 is inclined with respect to the axial direction of the rotary cylinder portion 82, and the inclination directions are opposite to each other. That is, the one end side portion 86 and the other end side portion 87 are formed in different directions.
In the present embodiment, the one end side portion 86 is formed so as to spiral in the clockwise direction (clockwise direction) toward the front, and the other end side portion 87 is counterclockwise (counterclockwise) toward the front. It is formed so as to form a spiral shape in the rotation direction).

The formation angle in the direction around the axis of the one end side portion 86 and the other end side portion 87 is preferably less than 360 °. By setting the formation angle within this range, the rotation amount of each direction of the rotary shaft 52 can be reduced, and the cleaning body 2 can be prevented from being tangled. The angle of formation of the one end side portion 86 and the other end side portion 87 in the illustrated example is about 3/4 rounds (about 270 °), respectively.
The forming angle in the direction around the axis of the one end side portion 86 and the other end side portion 87 can be set to 120 ° or more, for example. By setting the forming angle within this range, sufficient wiping and cleaning can be performed.
The one end side portion 86 and the other end side portion 87 are connected to each other at the central portion 88.
Therefore, as will be described later, when the rotary shaft 52 moves forward or backward, the rotary cylinder portion 82 rotates around the axis by one of the portions 86 and 87 in a predetermined direction, and then by the other of the portions 86 and 87. It rotates in a direction opposite to the direction.

As shown in FIGS. 5 to 7, the head member 23 includes an insertion portion 91 that can be inserted into the insertion hole 83 of the guide cylinder portion 81, a flange portion 92 formed at the front end of the insertion portion 91, and the flange portion 92. A substantially cylindrical tip extending portion 28 extending forward from the front surface is provided.
The distal end surface of the distal end extending portion 28 serves as a pressing surface 24 that presses the cleaning body 2 against the joining end surface 61a (see FIG. 13).
The tip extending portion 28 is flexible and can be bent and deformed elastically. The bending direction is not limited, and it is preferable that it can be bent and deformed in all directions.

As shown in FIG. 5, guide opening portions 25 </ b> A and 25 </ b> B (guide portions) that are openings through which the cleaning body 2 is inserted are formed on the pressing surface 24.
One guide opening 25A guides the cleaning body 2 from the feeding mechanism 3 to the pressing surface 24, and the other guide opening 25B guides the cleaning body 2 that has passed through the pressing surface 24 to the feeding mechanism 3. It is. The guide opening portions 25A and 25B can prevent the cleaning body 2 from being detached from the pressing surface 24.

It is preferable to form guide grooves 26 </ b> A and 26 </ b> B that guide the feeding movement of the cleaning body 2 on the side surface of the tip extension portion 28. The guide grooves 26 </ b> A and 26 </ b> B are also formed on the side surfaces of the flange portion 92 and the insertion portion 91.
The insertion portion 91 is formed with a flat portion 93 having a shape corresponding to the rotation stop portion 84 formed in the guide cylinder portion 81, and the flat portion 93 is disposed along the rotation stop portion 84, and thus the head member 23. Does not rotate with respect to the guide tube portion 81. In the illustrated example, the flat portion 93 is formed on one and the other surfaces of the insertion portion 91.

An opening 93a is formed at the rear part of one flat part 93 of the insertion part 91, an elastic piece 93b extending forward is formed at the rear edge thereof, and the tip of the elastic piece 93b protrudes from the flat part 93. An engaging claw 93c is formed.
As shown in FIG. 7, the engaging claw 93c can be locked to the front edge of the engaging opening 81a (engaging recess) formed in the guide tube 81, and the engaging claw 93c is engaged with the engaging opening. By engaging with the front edge of 81a, the forward movement of the head member 23 is restricted, and the head member 23 can be prevented from falling off.

As shown in FIG. 9, in the head member 23, the tip end portion of the tip extension portion 28 can be inserted into the insertion port portion 16c of the tip wall portion 16b of the tip tube portion 16, and the tip extension portion 28 is in a normal state. It is preferable that a portion including the tip portion of the protrusion protrudes from the tip.
In the present invention, a configuration in which the tip extending portion 28 does not protrude from the tip in a normal state is also possible.

As shown in FIGS. 2 and 6 to 8, the cleaning member 2 drawn from the supply reel 30 is wound around the head member 23.
In the illustrated example, the cleaning body 2 passes from the supply reel 30 in the tool body 10 through the insertion hole 83 of the rotary shaft 52 and the inside of the guide tube portion 81, and passes through the guide groove 26 </ b> A and the guide opening portion 25 </ b> A of the head member 23. It reaches the pressing surface 24. The cleaning body 2 further reaches the take-up reel 31 from the pressing surface 24 through the guide port portion 25B and the guide groove 26B, through the inside of the guide tube portion 81 and the insertion hole 83.

  The cleaning body 2 is not particularly limited, and a known appropriate cleaning cloth (nonwoven fabric or woven cloth) processed into a thread shape (or string shape), a tape shape, or the like can be employed. For example, what was comprised by ultra fine fibers, such as polyester and nylon, can be illustrated.

  Reference numeral 94 in FIGS. 6 and 7 denotes an urging means (for example, a coil spring) provided between the front end of the guide tube portion 81 and the flange portion 92. The urging means 94 urges the head member 23 forward when the head member 23 is pressed against the joining end surface 61a.

  As shown in FIG. 8, the feed mechanism 3 has a supply reel 30 around which the cleaning body 2 is wound, a take-up reel 31 that winds and collects the used cleaning body 2, and these are rotatably mounted. A support portion 35, a gear 38 attached to the take-up reel 31, a holding cylinder portion 39 formed in the support portion 35, an urging means 40 (for example, a coil spring) attached to the holding cylinder portion 39, and a presser Part 34.

  The support part 35 is provided on the inner surface 41a of the substrate 41, a supply reel support shaft 32 on which the supply reel 30 is rotatably mounted, and a take-up reel support on which the take-up reel 31 is rotatably mounted. A shaft 33, a partition plate 42 formed at the intermediate portion in the longitudinal direction of the substrate 41, a rear end plate 43 formed at the rear end portion of the substrate 41, and a side plate 44 formed at the side edge of the substrate 41 It has.

The board 41 is formed with two extending plates 45, 45 extending perpendicularly to the radial direction of the reels 30, 31, and the ends of the extending plates 45, 45 are directed toward the reels 30, 31, respectively. Projecting locking claws 45a, 45a are formed. The extension plate 45 can be elastically bent and deformed, and the locking claw 45a can move in a direction approaching and separating from the reels 30 and 31.
At the front end of the substrate 41, a notch 41b into which the distal end cylindrical portion 16 and the outer cylindrical body 18 are fitted is formed.

  The holding portion 34 is for preventing the reels 30 and 31 and the gear 38 from falling off, and is fitted to the reel support shafts 32 and 33 at the front end and the rear end of the long plate-like main body portion 34a extending in the front-rear direction. Possible fitting portions 34b and 34c are formed.

The partition plate 42 is formed with a passage recess 42a through which the cleaning body 2 passes.
The supply reel 30 and the take-up reel 31 include a body portion 47 around which the cleaning body 2 is wound, a first end plate 48 provided at one end of the body portion 47, and a second end provided at the other end of the body portion 47. And a plate 49.
A plurality of locking recesses (not shown) arranged along the circumferential direction are formed on the outer surface of the first end plate 48, and the locking claws 45a of the extension plate 45 are engaged with the locking recesses. This prevents the reels 30 and 31 from rotating in the reverse direction. On the outer surface of the second end plate 49, a plurality of locking projections 49a arranged along the circumferential direction are formed.
The reels 30 and 31 are attached to the support portion 35 by inserting the support shafts 32 and 33 through the body portion 47.

The gear 38 includes a disk-shaped substrate 87 and a gear portion 88 formed on one surface of the substrate 87. On the other surface of the substrate 87, a locking projection 87 a that locks with the locking projection 49 a of the take-up reel 31 is formed.
The gear portion 88 has a plurality of tooth portions 88 a arranged along the circumferential direction, and these tooth portions 88 a are formed so as to mesh with the receiving tooth portions 56 a of the gear receiving portion 56 of the support 51.
The gear 38 is installed so as to overlap the second end plate 49 of the take-up reel 31. Since the locking protrusion 87 a of the substrate 87 is locked to the locking projection 49 a of the second end plate 49, the take-up reel 31 also rotates as the gear 38 rotates.
The locking projection 87a is formed so as not to be locked to the locking projection 49a when the gear 38 rotates in the direction opposite to the winding direction.

As shown in FIGS. 9 to 11, the extending portion 20 includes an extending cylindrical body 21 and a head member 23 inserted through the extending cylindrical body 21.
The extension cylinder 21 includes a cylinder base 15, a tip cylinder 16 provided on the tip side thereof, a biasing means 17 that biases the tip cylinder 16 forward, and an outer cylinder 18. Yes.
The cylinder base 15 includes a holding frame portion 97 and a cylindrical connecting tube portion 96 extending forward from the front end of the holding frame portion 97.
The holding frame portion 97 is formed in a cylindrical shape having a rectangular cross section, and can accommodate the rotating cylinder portion 82 of the rotating shaft 52 therein.
A slit 100 into which the insertion convex portion 54 of the support 51 is inserted is formed in the side plate 99a, which is one of the four side plates 99 constituting the holding frame portion 97, along the front-rear direction.

The connection cylinder part 96 has a substantially cylindrical shape through which the guide cylinder part 81 of the rotary shaft 52 can be inserted.
A fitting claw 96 a that fits into a locking opening 18 a formed in the outer cylinder 18 is formed on the outer surface of the connecting cylinder 96.
On the inner surface of the connecting tube portion 96, a step portion 96b with which the rear end of the urging means 17 abuts is formed (see FIGS. 11 and 12).

As shown in FIGS. 9 and 10, the distal end cylindrical portion 16 includes a cylindrical wall portion 16 a and a distal end wall portion 16 b provided at the front end thereof.
An insertion port portion 16c through which the tip extension portion 28 of the head member 23 is inserted is formed in the tip wall portion 16b.
A rear end cylindrical portion 16d to be inserted into the urging means 17 is formed at the rear end portion of the front end cylindrical portion 16 so as to protrude rearward, thereby being positioned with respect to the urging means 17 (see FIG. 11).
The distal end cylindrical portion 16 is movable in the extending direction (front end direction) and the opposite direction.

  The biasing means 17 is preferably a spring member such as a coil spring. The rear part of the urging means 17 is inserted into the connecting cylinder part 96, the rear end part can be in contact with the step part 96b, and the front end part can be in contact with the rear end part of the front end cylinder part 16 (FIG. 11, FIG. (See FIG. 12).

The outer cylinder 18 is formed in a substantially cylindrical shape, and the connecting cylinder part 96 and the tip cylinder part 16 can be inserted therethrough.
As shown in FIG. 11, a stopper portion 18 b that is a convex portion protruding inward is formed at the front end portion of the outer cylindrical body 18. The stopper portion 18b abuts on the step portion 16e of the tip tube portion 16 and can restrict the forward movement of the tip tube portion 16. The stopper portion 18b in the illustrated example is a convex portion formed in an annular shape.

As shown in FIGS. 9 and 10, the cylinder base 15 includes a holding frame portion 97 and a cylindrical connecting tube portion 96 that extends forward from the front end of the holding frame portion 97.
A fitting claw 96 a that fits into a locking opening 18 a formed in the outer cylinder 18 is formed on the outer surface of the connecting cylinder 96.

  In FIG. 2, reference numeral 102 denotes a guide member. The guide member 102 includes a main body portion 103 that is attached to the distal end portion of the distal end cylindrical portion 16 of the extending portion 20, and a lid that is coupled to the main body portion 103 by a coupling body 105. 104. The main body 103 includes a mounting portion 106 that is detachably mounted on the distal end portion of the distal end cylindrical portion 16 of the extending portion 20, and a cylindrical guide body 107 that extends from the front end of the mounting portion 106. The guide member 102 is coupled to the case body 11 via a holding string portion 121 connected to the rear end of the mounting portion 106 of the main body portion 103.

Next, an example of a method for performing a cleaning operation using the cleaning tool 1 will be described.
FIG. 13 shows a ferrule 61 of an optical connector (such as an optical connector adapter) to be cleaned. An optical fiber hole 61b (fine hole) is opened at the center of the joining end surface 61a of the ferrule 61. The optical fiber 63 is inserted into the optical fiber hole 61b, and the tip of the optical fiber 63 is exposed to the joining end surface 61a.
The optical fiber 63 is, for example, a bare optical fiber from which the coating resin at the tip of the optical fiber core wire is removed.

In the state shown in FIG. 11, the extended cylinder 21 is located relatively forward. Therefore, only a very short portion including the tip portion is exposed at the tip extension portion 28.
As shown in FIGS. 12 and 13, when the extending portion 20 is inserted into the optical connector to be cleaned and the case body 11 is moved forward, the distal end tubular portion 16 is attached to the inner wall surface (not shown) of the optical connector. Abutting and receiving a reaction force from the inner wall surface, the extended cylinder 21 moves rearward relative to the case body 11. At this time, the distal end tubular portion 16 moves in a direction relatively approaching the connection tubular portion 96, and the distal end extending portion 28 protrudes long from the distal end tubular portion 16.
The cleaning body 2 on the pressing surface 24 comes into contact with an appropriate position (here, the optical fiber hole 61b and its periphery) of the joining end surface 61a of the ferrule 61 of the optical connector to be cleaned.

As shown in FIG. 14, the extension cylinder 21 moves rearward relative to the case body 11, so that the rotation shaft 52 is pushed relative to the support 51 by being pushed by the extension cylinder 21. Move backwards.
Therefore, the rotary cylinder portion 82 moves in the circumferential direction along the cam groove 85, and the rotary shaft 52 rotates around the axis.

Hereinafter, the process of rotating the rotary shaft 52 will be described in detail.
In the state shown in FIG. 14A, the extending cylinder 21 and the rotating shaft 52 are relatively forward, and the insertion convex portion 54 is inserted into the one end portion 86 of the cam groove 85. When the rotating shaft 52 moves rearward in this state, the rotating cylinder portion 82 moves along the one end side portion 86, whereby the rotating shaft 52 rotates counterclockwise (counterclockwise as viewed from the rear).
As shown in FIGS. 14B and 14C, when the insertion convex portion 54 reaches the other end side portion 87 through the central portion 88 of the cam groove 85, the rotary cylinder portion 82 becomes the other end side portion 87. By moving along, the rotating shaft 52 rotates clockwise.
That is, the rotating shaft 52 rotates in the counterclockwise direction when viewed from the rear, and then changes its rotation direction and rotates in the clockwise direction.

As shown in FIG. 13, the rotation of the rotary shaft 52 causes the head member 23 to rotate about the axis. Therefore, the cleaning body 2 rotates about the axis of the head member 23 while being in contact with the bonding end surface 61a. The end surface 61a is wiped and cleaned.
As described above, the cam groove 85 is formed so that the rotating shaft 52 rotates in one direction and then rotates in the opposite direction, so that the formation angle of the one end side portion 86 and the other end side portion 87 is small. However, a sufficient amount of rotation can be secured.
In the illustrated example, the forming angle of the one end side portion 86 and the other end side portion 87 is about 3/4 rounds, respectively, but the rotation shaft 52 is about 3/4 rounds in the counterclockwise direction and then about 3 in the clockwise direction. Because it rotates / 4 times, it will rotate about 1.5 times in total.
Since a sufficient amount of rotation can be secured, sufficient wiping and cleaning for the joining end surface 61a is possible.

  Since the formation angle of the one end side portion 86 and the other end side portion 87 of the cam groove 85 is small, the rotation angle of each direction of the rotating shaft 52 is also small. Therefore, the cleaning body 2 from the feed mechanism 3 toward the head member 23 and the head It is possible to prevent the cleaning body 2 heading from the member 23 toward the feeding mechanism 3 from being entangled inside the guide tube portion 81 and the insertion hole 83.

As shown in FIGS. 2, 3, and 8, since the support 51 moves relative to the feed mechanism 3, a rotational force is applied to the gear portion 88 of the gear 38 by the gear receiving portion 56.
Since the take-up reel 31 is also rotated by the rotation of the gear 38, the cleaning body 2 is taken up.
Along with this, the cleaning body 2 is pulled out from the supply reel 30 and fed through the pressing surface 24 of the head member 23.
By the feed movement of the cleaning body 2, dirt such as dust, dust and oil adhering to the joining end surface 61 a is surely wiped off.

When the extension part 20 is pulled out from the optical connector, the extension part 20 moves forward relative to the case body 11 by the elastic force of the biasing means 40. At this time, the distal end tubular portion 16 returns to the forward position by the elastic force of the urging means 17 (see FIG. 11).
Even in the process in which the rotating shaft 52 moves relatively forward, the insertion convex portion 54 moves along the one end side portion 86 via the other end side portion 87, so that the rotating shaft 52 rotates clockwise as viewed from the rear. Then, it rotates counterclockwise, and in this process, the cleaning end 2 wipes and cleans the joining end face 61a.

As described above, in the cleaning tool 1, the one end side portion 86 of the cam groove 85 is formed to rotate the rotating cylinder portion 82 in one direction, and the other end side portion 87 causes the rotating cylinder portion 82 to be opposite to the one direction. Therefore, even when the formation angle of the one end side portion 86 and the other end side portion 87 is small, a sufficient amount of rotation can be secured by one operation and sufficient wiping can be performed on the joining end surface 61a. Cleaning becomes possible.
In addition, since the formation angle in the direction around the axis of the one end side portion 86 and the other end side portion 87 of the cam groove 85 can be reduced, the rotation angle of each direction of the rotary shaft 52 can also be reduced.
For this reason, it is possible to prevent the cleaning body 2 from the feed mechanism 3 toward the head member 23 and the cleaning body 2 from the head member 23 toward the feed mechanism 3 from being entangled inside the guide tube portion 81 and the insertion hole 83. Therefore, the cleaning body 2 can be supplied smoothly and a reliable cleaning operation can be performed.
Furthermore, since the rotation amount of the rotating shaft 52 can be secured, sufficient cleaning can be performed even when the supply amount of the cleaning body 2 from the feed mechanism 3 is small. For this reason, the cleaning body 2 can be efficiently used.

15 and 16 show another example of the rotating shaft. In the following description, the same reference numerals are given to the already described configurations, and the description thereof is omitted.
The rotating shaft 122 shown in FIG. 15 includes a rotating cylinder portion 123 and a guide cylinder portion 124 that is linked to the rotating cylinder portion 123, and the head member 23 is attached to the distal end portion 124 a of the guide cylinder portion 124.
The rotating cylinder portion 123 includes a cylindrical main body portion 125 and a bevel gear portion 126 formed at one end portion in the axial direction. The bevel gear portion 126 has a truncated cone shape in which a tooth portion 126a is formed on a side surface.
The guide tube portion 124 includes a main body portion 127 and a bevel gear portion 128 formed at the base end portion thereof. The bevel gear portion 128 has a truncated cone shape having a tooth portion 128 a that meshes with the tooth portion 126 a of the bevel gear portion 126.

The main body 125 of the rotary cylinder 123 can have the same configuration as the rotary cylinder 82. That is, the cam groove 85 including the one end side portion 86 and the other end side portion 87 can be formed on the outer surface.
When the support body 51 moves relatively forward or backward (vertical direction in FIG. 15), the insertion convex portion 54 of the support body 51 moves along the cam groove 85, so that the rotating cylinder portion 123 is predetermined around the axis. Rotate in the direction and then in the opposite direction.
Due to the fitting of the bevel gear portion 126 and the bevel gear portion 128, the rotational force of the rotary cylinder portion 123 is transmitted to the guide cylinder portion 124, and the head member 23 is rotated about the axis.

A rotating shaft 132 shown in FIG. 16 includes a rotating cylinder part 133 and a guide cylinder part 124 connected to the rotating cylinder part 133, and the head part 23 is attached to a distal end part 124 a of the guide cylinder part 124. .
The rotating cylinder part 133 has a cylindrical cylinder part body 134 and an end plate part 135 provided at one open end of the cylinder part body 134.
The cylindrical portion main body 134 can be formed with a cam groove 138 formed of one end side portion 136 having a spiral shape in one direction and the other end side portion 137 having a spiral shape in the opposite direction to the inner surface.
When the support body 51 moves relatively forward or backward (left and right direction in FIG. 16), the insertion convex portion 54 of the support body 51 moves along the cam groove 138, whereby the rotary cylinder portion 133 is predetermined around the axis. Rotate in the direction and then in the opposite direction. The rotational force of the rotating cylinder part 133 is transmitted to the guide cylinder part 124 to rotate the head member 23 around the axis.

The cam groove 85 of the rotating cylinder portion 82 shown in FIG. 4 or the like has a spiral one end side portion 86 formed in a portion from the rear end 82a to the axial center portion, and a portion from the axial center portion to the front end 82b. However, the shape of the cam groove is not limited to this, and a part of the cam groove can rotate in one direction, and at least one of the other parts. The part should just be formed so that a rotation cylinder part may be rotated in the direction different from the said one direction.
The object of the cleaning tool of the present invention can be an optical connector adapter, an optical connector receptacle (specifically, a receptacle housing) or the like.

DESCRIPTION OF SYMBOLS 1 ... Optical connector cleaning tool, 2 ... Cleaning body, 3 ... Feed mechanism, 5 ... Rotation mechanism, 10 ... Tool body, 11 ... Case body, 15 ... Cylindrical body Base part: 16 ... tip tube part, 17 ... urging means, 20 ... extension part, 21 ... extension cylinder body, 23 ... head member, 28 ... tip extension part , 51 ... support, 52 ... rotating shaft, 61 ... ferrule, 61a ... joining end face, 82, 123, 133 ... rotating cylinder part, 85, 138 ... cam groove, 86 136, one end side portion, 87, 137, the other end side portion.

Claims (5)

The joining end face of an optical connector, an optical connector cleaning tool more wiping cleaning the cleaning member being feeding movement,
A tool present having a case body feed Organization is incorporated to supply and take-up of the cleaning element, and a extending portion extending from the tool body,
The extending portion includes a extending cylindrical body and a head member for pressing the cleaning body protrudes from the distal end of the extending cylinder to the joining end face,
To the tool body, rotational Organization for rotating said head member around the axis is incorporated,
The rotating mechanism includes a support positioned with respect to the case body, and a rotary shafts bets the head member is mounted,
The rotating shaft has a rotating cylinder part having a cam groove into which the insertion convex part of the support is inserted, and a guide cylinder part that extends from the rotating cylinder part in the extending direction and has the head member mounted on the tip thereof. And
When the case main body is moved in the extending direction with respect to the extending portion together with the support body, the rotating cylinder portion is rotated by movement along the cam groove to rotate the head member around an axis. Formed as
Part of the cam groove, the formed a rotation barrel so as to rotate in one direction, at least part of the other portions, to rotate the rotary cylinder portion in a direction different from said one direction An optical connector cleaning tool which is formed. The cam groove is formed such that a portion including one axial end portion of the rotating cylinder portion rotates the rotating cylinder portion in one direction.
2. The optical connector cleaning tool according to claim 1, wherein the other portion is formed to rotate the rotating cylinder portion in a direction different from the one direction. The cam groove of the part that rotates the rotating cylinder part in one direction is formed in a spiral shape in this direction,
3. The optical connector cleaning tool according to claim 1, wherein a cam groove of a portion for rotating the rotating cylinder portion in a direction different from the one direction is formed in a spiral shape in this direction.   The cam groove of the part that rotates the rotating cylinder part in one direction and the cam groove of the part that rotates the rotating cylinder part in a direction different from the one direction have a forming angle around an axis of less than 360 °. The optical connector cleaning tool of any one of Claims 1-3 characterized by the above-mentioned. The extending cylindrical body has a cylindrical body group portion, and the cylindrical body distal end tube portion which is urged more extending direction biasing hand stage to the base,
The head member can protrude from the tip of the tip tube portion;
5. The protrusion amount of the tip extension part can be adjusted by moving the tip cylinder part in the extension direction with respect to the cylinder base part. 5. An optical connector cleaning tool as described in 1.

Images