Technical field
[0001]
　The present invention relates to a coating removing apparatus of the optical fiber.
BACKGROUND
[0002]
　As a coating removing apparatus for removing the coating of the optical fiber, for example, devices are known according to Patent Documents 1 and 2. In the coating removing apparatus disclosed in Patent Documents 1 to 3, by heating the coating to be removed of the optical fiber is softened, to reduce the adhesion between the coating and the bare optical fiber, it is practiced to remove the coating there. In such a coating removing apparatus, after putting a body having a pair of blades, and a grip portion for gripping an optical fiber, a cut in the coating of the optical fiber in the pair of blades of the main body, the main body and the grip portion by separating the bets, pull the covering of a pair of blades, thereby removing the coating of the optical fiber.
CITATION
Patent Document
[0003]
Patent Document 1: Real-Open 1-90003 JP
Patent Document 2: JP 2002-328241 Patent Publication
Patent Document 3: JP 2001-108836 JP
Summary of the Invention
Problems that the Invention is to Solve
[0004]
　To facilitate removal of the coating of the optical fiber, since better separation-time of the resistance of the body and the gripping portion is small, it is desirable to improve the sliding properties of the sliding portion for sliding the main body and the grip portion . However, if the enhanced sliding properties of the sliding portion, the body and the gripping portion is separated when removing the coating of the optical fiber, there is a possibility that the main body and the gripping portion is separated by the reaction comes close. Also, when removing the coating of the optical fiber by separating the body and the grip portion, the coating removing apparatus is tilted, by the weight of the body and the grip portion, a possibility that the main body and the grip portion is spaced to close is there. Thus, when the main body and the gripping portion is separated at the coating removal of the optical fiber will close, removing optical fiber coatings (bare optical fiber) is cause bent between the body and the grip portion, there is a possibility that the optical fiber may be damaged.
[0005]
　Some embodiments of the present invention has an object to body and gripping portion that is separated during coating removal to prevent the approaching.
Means for Solving the Problems
[0006]
　Some embodiments of the present invention comprises a body having a blade for coating removal, the grip portion for gripping an optical fiber, and a sliding portion which is linked to close and separate the main body and the grip part after incision in the coating of the optical fiber by said blade, said by separating the body and the grip portion, a coating removing apparatus for removing the coating of the optical fiber, the sliding portion, the a coating removing apparatus characterized by having a holding portion for holding the maximum separation state between the main body and the grip portion.
[0007]
　Other features of the invention will become clear by reading the description of the specification and drawings described below.
Effect of the invention
[0008]
　According to some embodiments of the present invention, it is possible to suppress the body and the gripping portion is separated at the coating removal approaches.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009]
[1] Figure 1 is an overall perspective view of a coating removing apparatus 10 of the present embodiment.
[2] FIGS. 2A ~ 2C are explanatory views of a state during coating removal.
FIG. 3 is an explanatory view of the slide portion 40 and the holding portion 50 in the proximity state.
[4] FIG. 4 is an explanatory view of the slide portion 40 and the holding portion 50 in the maximum separation state.
FIG. 5 is a perspective view of a shaft-side engaging portion 51.
FIG. 6 is a perspective view of a sliding-side engagement portion 54.
[7] FIG. 7 is a perspective view of a sliding-side engagement portion 54 of the second embodiment.
DESCRIPTION OF THE INVENTION
[0010]
　From the description of the specification and the drawings described below, at least the following matters will be made clear.
[0011]
　A body having a blade for coating removal, the grip portion for gripping an optical fiber, and a main body and a slide portion which is linked to close and separate the said holding part, the coating of the optical fiber by the cutter after incision, the by separating the body and the grip portion, a coating removing apparatus for removing the coating of the optical fiber, the sliding portion is maximum separation state between the main body and the grip part becomes clear coating removal apparatus characterized by having a holding portion for holding. With such a coating removing apparatus, the main body and the gripping portion is separated at the time of coating removal can be prevented from approaching.
[0012]
　Wherein when a force exceeding the weight of the gripper is applied in a direction to approach the said body and the grip portion, wherein the maximum separation state holding is released it is desirable due to the holding portion. Thus, even gone if the coating removal device is tilted, can be suppressed that is spaced body and the grip portion are close unexpectedly.
[0013]
　Said slide portion includes a shaft, one of said body and said gripping portion is fixed to an end portion of said shaft, the other of the body and the grip portion is slidably sliding the shaft has a section, the holding portion includes a shaft-side engaging portion provided at the end portion opposite to the fixed side of the shaft, sliding side engagement provided on the side of the sliding portion and a section, and the shaft-side engaging portion and the sliding-side engaging portion may be desirable to retain the maximum separation state by engaging. Thus, it is possible to suppress the body and the gripping portion is separated at the coating removal approaches.
[0014]
　The shaft-side engaging portion has a tapered portion which becomes thicker closer to the terminal end, the sliding-side engaging portion is constituted by an elastic member, it is desirable to deform by the tapered portion. This makes it possible to gradually elastically deform the sliding side engagement portion, it is easily engaged with the shaft-side engaging portion and the sliding-side engagement portion.
[0015]
　The shaft-side engaging portion has a recess, the sliding-side engaging portion preferably has a convex portion engaged with the recess. Thus, by the projections of the slide engaging portion is caught by the recess of the shaft-side engaging portion, it is possible to hold up the separated state between the main body and the gripping portion.
[0016]
　The sliding-side engaging portion has a cylindrical portion for inserting the shaft, wherein the convex portion is a portion which protrudes inwardly of the cylindrical portion, on the outside of the cylindrical portion provided with the protrusion it is desirable that the thin portion is formed. Thus, the cylindrical portion as the convex portions extending outward is liable to elastic deformation, the inner protrusions tapered portion of the shaft easily pass through.
[0017]
　The shaft-side engaging portion includes a more thicker a tapered portion closer to the terminal end than the tapered portion and a recess provided on the side of the end portion, the sliding-side engaging portion, said it is desirable to have a tapered accommodating portion for accommodating the tapered portion, and a convex portion engaged with the recess. Thereby, engaging force is strengthened, can resist a force that holds the maximum separation state between the main body and the gripping portion.
[0018]
　The sliding part preferably has a ball bearing for slidably supporting the shaft. In such a case, the coating removing apparatus that is particularly effective with the holding portion.
[0019]
　The body has a mounting portion for mounting said optical fiber, spaced the length of said body and said gripping portion at the maximum separation state of the placement section to be placed such the optical fiber it is desirable longer than the length. Thus, the operator can remove the coating if brought into the maximum separation state and the main body and the grip portion, placed on the placing part optical fiber.
[0020]
　=== First Embodiment ===
　
　Figure 1 is an overall perspective view of a coating removing apparatus 10 of the present embodiment. Figure 2A ~ 2C are explanatory views of a state during coating removal.
[0021]
　Coating removing apparatus 10 is an apparatus for removing the coating of the optical fiber. Target coating removal, where it is the optical fiber ribbon 1 having a plurality of optical fibers, may be a single core optical fiber. Coating removing apparatus 10 of the present embodiment, the coating material covering the outer periphery of the bare optical fiber 4 (see FIG. 2C) (hereinafter, simply referred to as coating) is softened by heating, the adhesion between the coating and the bare optical fiber 4 the by reducing a device for removing the coating. Coating removing apparatus 10 of the present embodiment is sometimes referred to as hot jacket stripper.
[0022]
　In the following, it is possible to perform an explanation according to the direction shown in FIG. That is, the moving direction of the main body 20 and the grip portion 30 and the front-rear direction, the side of the main body 20 and a "front", the side of the grip portion 30 and "rear". Incidentally, the "separation direction" that in the longitudinal direction, sometimes referred to as "approaching direction", or "slide direction". Moreover, the "vertical direction" and a direction perpendicular to the bottom surface of the holder accommodating portion 311 of the grip portion 30, as viewed from the bottom surface of the holder receiving portion 311, the side to be accommodated in the holder 7 as "upper", opposite side (grip the side) of the side body portion 31 is referred to as "down". Further, the "left-right direction" and a direction perpendicular to the longitudinal direction and in the vertical direction, the right when viewed front the rear side is "right", and "left" (here the left side, lid (body a hinge side of the lid 23 and the grip-side lid 33) is "left", open side is "right").
[0023]
　Coating removing apparatus 10 includes a main body 20, a grip portion 30, and a slide portion.
[0024]
　Body 20 is a member that constitutes the main body of the coating removing apparatus 10. The body 20, the heat source (heater unit: not shown) for heating the coating is provided. Body 20 has a pair of blades 21A, 23A for coating removal. Body 20 includes a main body portion 21 has a body-side cover portion 23, the blade is provided on each of the main body portion 21 and the body-side lid 23.
[0025]
　Body portion 21 has a blade 21A, and a mounting portion 211. Blade 21A, as well as an incision in the coating, is a member for removing hook covering. Mounting portion 211 is a member for mounting the end of an optical fiber (mounting table). The mounting portion 211, the heat source (heater unit: not shown) for heating the coating of the optical fiber is provided. Mounting portion 211 is formed in a groove shape along the longitudinal direction, it can be placed the end of the optical fiber while guiding the end of the optical fiber in the longitudinal direction. Incidentally, the main body portion 21, and a control board for controlling the heater unit, a power switch, LED lamp is also provided. As will be described later, the main body portion 21 is provided and a shaft accommodating portion 21B for accommodating the shaft 41, also bushing accommodation portion 21C or the like for housing a bush 45 or the like for supporting the shaft 41 slidably It is.
[0026]
　Body-side lid 23 is a lid member capable of opening and closing with respect to the main body portion 21. Body-side lid 23 includes a blade 23A, and a fiber holding portion 231. Fiber holding unit 231, sandwiching the ends of the optical fiber between the mounting portion 211 of the main body portion 21 is a portion for holding an end portion of the optical fiber. When the main body lid 23 is closed, the end of the optical fiber is pressed against the mounting portion 211 will be heated by the heater unit provided on the mounting portion 211 (not shown). Also on the main body side lid 23, the heat source (heater unit) may be provided for heating the coating of the optical fiber.
[0027]
　Gripper 30 is a member for gripping the optical fiber. In this embodiment, the grip portion 30 by gripping the holder 7 for holding the optical fiber, to grip the optical fiber. However, the gripping portion 30 also may be indirectly grasp the optical fiber through a member other than the holder 7 may be an optical fiber directly grasped. Gripper 30 is configured to be moved back and forth with respect to the main body 20 (see FIG. 2C). Gripper 30 includes a gripper body part 31, and a grip-side cover portion 33.
[0028]
　Gripping body part 31 is a member that constitutes the main body of the grip portion 30. Gripping body part 31 has a holder receiving portion 311. Holder receiving portion 311 is a portion for accommodating the holder 7 holding the optical fiber.
[0029]
　Grip-side cover portion 33 is a lid member capable of opening and closing with respect to the grip body part 31. Grip-side cover portion 33 includes a holder holding unit 331. Holder holding unit 331, sandwiching the holder 7 holding the optical fiber between the gripping body part 31 is a part for holding the holder 7. When the grip-side lid 33 is closed, the holder 7 is pressed against the holder receiving portion 311, so that the holder 7 is gripped between the gripping body part 31 and the grip-side cover portion 33.
[0030]
　Slide portion 40 is a member linked to the proximity and separates the main body 20 and the grip portion 30. Slide portion 40 has a shaft 41. Shaft 41 is a rod-like member that linked to the proximity and separates the main body 20 and the grip portion 30. In the present embodiment, one end of the shaft 41 is fixed to the grip portion 30, when the gripping portion 30 relative to the body 20 is moved, so that the shaft 41 also moves relative to the body 20. However, it may be fixed to the shaft 41 on the side of the body 20. The detailed structure of the sliding portion 40 and shaft 41 will be described later.
[0031]
　In removing the coating of the optical fiber, first, the worker, as shown in FIG. 2A, open the main body side lid 23 and the grip-side cover portion 33, an optical fiber (optical fiber ribbon 1 in this case) accommodating the holder 7 holding the holder receiving portion 311 of the grip portion 30, thereby placing the end of the optical fiber to the mounting portion 211 of the body portion 21. Thus, the optical fiber is set in the coating removing apparatus 10.
[0032]
　Incidentally, as shown in FIG. 2A, when setting an optical fiber coating removing apparatus 10, the worker is in a state of being closest to the grip portion 30 and the body 20 (the minimum proximity state). The minimum proximity state, the main body 20 and has opposite surfaces contact each other with the gripping portion 30 is restricted to be close more to. That, of mutually opposing surfaces of the body 20 and the grip portion 30 has (in other words, the moving range of the shaft 41) the movement range of the body 20 and the grip portion 30 functions as a stopper for defining the.
[0033]
　Next, the operator, as shown in FIG. 2B, closing the main body lid 23 and the grip-side lid 33. When the body-side lid 23 is closed, so that the pair of blades 21A, is cut into the coating of the optical fiber by 23A enters. Further, when the main body side lid 23 is closed, the end of the optical fiber is sandwiched between the fiber holding portion 231 of the mounting portion 211 and the body-side lid 23 of the main body portion 21, the optical fiber end It is heated by the coating provided on the mounting portion 211 heat source (heater unit). An exposed end of the optical fiber is heated, the coating is softened, the adhesion between the coating and the bare optical fiber 4 is reduced, it becomes easily removed state coating.
[0034]
　Next, the worker, as shown in FIG. 2C, in the closed state of the main body lid 23 and the grip-side lid 33, to move the gripper 30 to the rear side with respect to the main body 20, a body 20 gripping to separate the part 30. Thus, coating a pair of blades 21A of the end portion of the optical fiber, it is withdrawn by 23A, so that the coating of the optical fiber is removed.
[0035]
　Incidentally, as shown in Figure 2C, when removing the cover, the operator is in a state of being most separated from the grip portion 30 and the body 20 (maximum separation state). Spaced the length of the main body 20 and the grip portion 30 at the maximum spacing condition is longer needs than the length of the coating to be removed at the end of the optical fiber. Therefore, in this embodiment, the spacing length of the main body 20 and the grip portion 30 at the maximum spacing condition is longer than the length of the longitudinal direction of the mounting portion 211, it can be placed on the placing portion 211 It is longer than the length of the optical fiber (the length of the to be removed coating) such. Thus, the operator, if the the gripping portion 30 and the body 20 to the maximum separation state, it is possible to remove the coating of the mounted on the mounting portion 211 optical fiber.
[0036]
　Incidentally, when the removal of the coating of the optical fiber as shown in Figure 2C, when the main body 20 which is spaced a grip portion 30 are close to the bare optical fiber 4 which has been removed of the coating between the body 20 and the grip portion 30 It will bent between, there is a risk that the bare optical fiber 4 is damaged. Therefore, the sliding portion 40 of the present embodiment has a holding portion 50 for holding the maximum separation state between the body 20 and the grip portion 30 (described later).
[0037]
　
　FIG. 3 is an explanatory view of the slide portion 40 and the holding portion 50 in the proximity state. Figure 4 is an explanatory view of the slide portion 40 and the holding portion 50 in the maximum separation state. Incidentally, the lower part of FIG. 3 and FIG. 4 is a partial cross-sectional view of a dotted line part in the figure above.
[0038]
　Slide unit 40 includes a shaft 41, and a sliding portion 44. Sliding portion 44 is a member for supporting the shaft 41 slidably. In this embodiment, the grip portion 30 is fixed the end of the shaft 41, the sliding portion 44 is provided in the body 20. However, the end portion of the shaft 41 is fixed to the main body 20, the sliding portion 44 may be provided to the grip portion 30. The side provided with the sliding portion 44 (main body portion 21 in this embodiment), and the shaft seat 21B, is provided a bushing accommodation portion 21C. Shaft seat 21B is a space (housing space) for housing the shaft 41 slidably, is a space extending in the longitudinal direction. Bushing accommodation portion 21C is a space (housing space) for housing the bushing 45 and the like constituting the sliding portion 44.
[0039]
　Sliding portion 44 includes a bushing 45, the bushing holder 46, and a bushing received 47. Bush 45 is a bearing unit with a built-in linear motion bearings. Bush holder 46 is a member for holding the bushing 45 to the bushing accommodation portion 21C. Bush receiving 47 is a member that is interposed between the bush 45 and the bush holder 46 and the body 20. In the present embodiment, the bush receiver 47 is also a member for holding the slide-side engagement portion 54 (described later) between the inner wall surface of the body 20.
[0040]
　In the present embodiment, the sliding portion 44 has a ball bearing (not shown) as a linear bearing bushing 45. Thus, apart from when the resistance between the body 20 and the grip portion 30 is reduced, slidability of the sliding portion 40 for sliding the grip portion 30 and the main body 20 is improved. In the case where enhanced sliding properties of the sliding portion 40, but the body 20 and the grip portion 30 is separated at the time of coating removal is easily accessible, in the present embodiment is provided with the holding portion 50 described later, bare optical fiber 4 (see FIG. 2C) is prevented from being bent between the body 20 and the grip portion 30. In such a case where the sliding portion 44 has a ball bearing, the coating removal apparatus 10 is to have a holding portion 50 (described later) is particularly effective.
[0041]
　The slide portion 40 of the present embodiment has a holding portion 50. Holding unit 50 is a member for holding the maximum separation state between the body 20 and the grip portion 30 (see FIG. 2C). In the present embodiment, it can prevent the holding portion 50 by holding the maximum separation state between the body 20 and the grip portion 30, a body 20 which is spaced a grip portion 30 are close to the bare light shown in FIG. 2C fiber 4 is prevented from being bent between the body 20 and the grip portion 30.
[0042]
　Holding unit 50 includes a shaft-side engaging portion 51, and a slide-side engagement portion 54, and a shaft-side engaging portion 51 and the sliding-side engagement portion 54 is engaged (hooked) by, holding the maximum separation state between the body 20 and the grip portion 30. Shaft-side engaging portion 51 is provided on (the end opposite to the fixed side) end portion of the shaft 41. Sliding side engagement portion 54 (in this embodiment the body 20) provided side of the sliding portion 44 of the body 20 and the grip portion 30 is provided on.
[0043]
　Figure 5 is a perspective view of a shaft-side engaging portion 51.
　Shaft-side engaging portion 51 is a portion of a holding portion 50 at the shaft 41 side, a portion for engaging the sliding side engagement portion 54. Shaft-side engaging portion 51 has a tapered portion 51A, a recess 51B, and a flange portion 51C.
[0044]
　The tapered portion 51A is gradually thicker becomes the site closer to the end portion of the shaft 41. By the shaft-side engaging portion 51 has a tapered portion 51A, it is possible to gradually elastically deform the sliding side engagement portion 54, engages a shaft-side engaging portion 51 and the sliding-side engagement portion 54 likely engaged. Incidentally, the tapered portion 51A is a portion than the shaft portion 41A projecting outward.
[0045]
　Recess 51B is a groove-shaped portion recessed. Recess 51B is a portion projecting portions 542A of the sliding-side engaging portion 54 is caught (see also FIG. 4), it is provided on the side of the end portion than the tapered portion 51A. By projecting portion 542A of the sliding-side engaging portion 54 is caught in the recess 51B, so that the maximum separation state between the body 20 and the grip portion 30 is held. The diameter of the recess 51B is thicker than the diameter of the shaft portion 41A of the shaft 41. Accordingly, the convex portion 542A of the sliding-side engaging portion 54 is engaged in the recess 51B, since no engagement with the shaft portion 41A, can be suppressed wear of the convex portion 542A.
[0046]
　Flange portion 51C is a portion which is formed on the final end of the shaft 41, which is the thickest portion of the shaft 41. Flange portion 51C has a diameter that can not be passed through the sliding-side engagement portion 54. By the flange surface of the flange portion 51C is brought into contact with the end face of the sliding-side engagement portion 54, further movement of the shaft 41 is restricted. That is, the flange portion 51C has a function as a stopper for defining the range of movement of the shaft 41. In other words, the flange portion 51C has a function as a stopper for defining the maximum spacing position between the body 20 and the grip portion 30.
[0047]
　Figure 6 is a perspective view of a sliding-side engagement portion 54.
　Sliding side engaging portion 54 is a portion of a holding portion 50 at the side of the sliding portion 44 is a portion to be engaged with the shaft-side engaging portion 51. Shaft-side engaging portion 51 is constituted by an elastically deformable member. Here, the shaft-side engaging portion 51 is a rubber, it is also possible to elastic deformable metal. Sliding side engaging portion 54 has a flange portion 541, a cylindrical portion 542.
[0048]
　Flange portion 541 is a flange-shaped portion formed on the sliding side engaging portion 54 is a portion for fixing the sliding-side engagement portion 54 to the body 20. Specifically, as shown in FIG. 4, the flange portion 541 is sandwiched between the inner wall surface (shaft seat 21B and the stepped surface between the bushing accommodation portion 21C) and the end surface of the bush receiver 47 of the body 20 Accordingly, the sliding-side engagement portion 54 to be fixed to the body 20 (see also FIG. 4).
[0049]
　The cylindrical portion 542 is a cylindrical portion for inserting the shaft 41. The inner surface of the cylindrical portion 542, and the convex portion 542A, a tapered housing portion 542B is formed. Further, on the outer surface of the cylindrical portion 542, the thin portion 542C is formed.
[0050]
　Protrusion 542A is a portion which protrudes inwardly from the inner wall surface of the cylindrical portion 542 is a portion caught by the recess 51B of the shaft-side engaging portion 51 (see also FIG. 4). Protrusion 542A is disposed on the edge of the cylindrical portion 542 (front edge), thereby, the convex portion 542A is cylindrical section 542 so as to spread outwardly is formed easily elastically deformed. The inner diameter of the convex portion 542A is configured larger than the shaft portion 41A of the shaft 41. This can suppress the wear of the convex portion 542A. The inner diameter of the convex portion 542A is smaller than the widest part of the tapered portion 51A of the shaft 41. Thus, when the tapered portion 51A of the shaft 41 passes through the cylindrical portion 542 of the sliding-side engagement portion 54, the convex portion 542A is in contact with the tapered portion 51A, so that the convex portion 542A is widened outward, cylindrical It made it part 542 is gradually elastically deformed. Since the convex portion 542A is configured to gradually elastically displaced by the tapered portion 51A, the convex portion 542A is after caught once in the recess 51B, the convex portion 542A is less likely to come off from the concave portion 51B.
[0051]
　In this embodiment, protrusions 542A protrudes inwardly from a portion of the inner surface of the cylindrical portion 542. Thus, as compared with the case where the convex portion so as to protrude from the entire circumference inwardly projecting portion 542A is the cylindrical portion 542 so as to spread outwardly is easily elastically deformed.
[0052]
　Tapered housing portion 542B is a part which is recessed from the inner wall surface of the cylindrical portion 542 is a space (housing space) for accommodating the tapered portion 51A of the shaft-side engaging portion 51. In other words, the tapered receiving portion 542B is a portion for engaging the tapered portion 51A projecting outward from the shaft portion 41A of the shaft 41 (see FIG. 4). Thus, by forming irregularities (concave 51B and the tapered portions 51A) to the shaft-side engaging portion 51, the irregularities (convex portions 542A and the tapered housing section 542B) formed on the sliding side engagement portion 54, the shaft-side engaging by engaging each other irregularities of engaging portion 51 and the sliding-side engagement portion 54, the engaging force is strengthened, can resist a force that holds the maximum separation state between the body 20 and the grip portion 30.
[0053]
　Thin portion 542C is a region recessed from the outer peripheral surface of the cylindrical portion 542, the wall thickness of the cylindrical portion 542 is a thin portion. Thin portion 542C is formed on the back side of the site where the convex portion 542A is formed. By forming the thin portions 542C on the back side of the convex portion 542A, the cylindrical portion 542 as the convex portion 542A is widened outward is liable to elastic deformation, the inner protrusions 542A tapered portion 51A of the shaft 41 tends to pass Become.
[0054]
　As shown in Figure 2C, when moved away the main body 20 and the grip portion 30 of the coating removing apparatus 10, the maximum immediately before the separated state, the shaft-side engaging tapered portion 51A sliding side engagement portion 54 of the engaging portion 51 enters the inside of the convex portion 542A of the contacts and a tapered portion 51A and the convex portion 542A, the convex portion 542A is so as to spread outward, the cylindrical portion 542 is gradually elastically deformed. If this time, since it is configured such tapered portion 51A is gradually thicker, since the resistance at which to separate the grip portion 30 and the main body 20 only gradually changes, rapidly increased resistance to separate it is not necessary to. Further by separating the gripping portion 30 and the body 20, when the main body 20 and the grip portion 30 is maximum separation state, as shown in FIG. 4, the convex portion 542A is a shaft-side engaging the sliding side engagement portion 54 by catching on the recess 51B of the unit 51 (by the shaft-side engaging portion 51 and the sliding-side engagement portion 54 is engaged), to maximum separation state between the body 20 and the grip portion 30 is held Become.
[0055]
　Meanwhile, after removing the coating of the optical fiber as shown in Figure 2C, the operator will retrieve the holder 7 holding the optical fiber open grip-side cover portion 33. At this time, since the maximum separation state between the grip portion 30 and the body 20 by the holding portion 50 is held, while working to retrieve the holder 7 by opening the gripping side cover portion 33, the grip portion 30 and the body 20 which is spaced bets can be prevented from being close, bare optical fiber 4 can be prevented from being bent between the body 20 and the grip portion 30.
[0056]
　After removal of the holder 7 by opening the gripping side cover portion 33, the operator releases the maximum separation state holding by the holding portion 50, thereby to close the gripping portion 30 and the body 20. In the present embodiment, in order to release the maximum separation state holding by the holding portion 50, a force exceeding the weight of the grip portion 30, it is necessary to impart a direction to approach the grip portion 30 and the body 20. In other words, in order to disengage the protrusion 542A from the state where the convex portion 542A and the concave portion 51B is caught from the recess 51B has a force exceeding the weight of the gripper 30, in a direction to approach the grip portion 30 and the main body 20 there is a need to impart. That is, if a force exceeding the weight of the grip portion 30 is given, so that the maximum separation state holding by the holding unit 50 is not released, the holding portion 50 is formed. By setting the holding force of the thus holding portion 50, even if got coating removing apparatus 10 is tilted before temporarily taking out the optical fiber from the coating removal apparatus 10, the holding portion 50 and the main body 20 and the grip portion 30 it is possible to hold up the separated state of, can prevent the main body 20 which is spaced a grip portion 30 are close unexpectedly.
[0057]
　=== Second Embodiment ===
　FIG. 7 is a perspective view of a sliding-side engagement portion 54 of the second embodiment. The sliding-side engagement portion 54 of the first embodiment described above were made of rubber, but the sliding side engaging portion 54 of the second embodiment is made of metal. The material of the sliding side engagement portion 54 as is not limited to rubber, and may be elastically deformable member.
[0058]
　Sliding side engagement portion 54 of the second embodiment has a convex portion 54A to be engaged in the recess 51B of the shaft-side engaging portion 51. Protrusions 54A, like the convex part 542A of the first embodiment, elastically displaced so as to spread outwardly upon contact with the tapered portion 51A, then will engage the recess 51B of the shaft-side engaging portion 51 . In the second embodiment, the shaft-side engaging portion 51 and the sliding-side engagement portion 54 by engaging, so that the maximum separation state between the body 20 and the grip portion 30 is held.
[0059]
　=== Other ===
　The embodiments described above are intended to facilitate understanding of the present invention and are not to be construed as limiting the present invention. The present invention, without departing from the spirit thereof, may be changed or improved, the present invention is, of course, includes the equivalents thereof.
DESCRIPTION OF SYMBOLS
[0060]
1 optical fiber tape, 4 bare optical
fiber, 7 the holder, 10 coating removing
apparatus, 20 main body, 21 a body
portion, 21A blade, 21B shaft
seat, 21C bushing accommodation unit, 211 mounting portion (heater
unit), 23 body-side lid, 23A blade 231 fiber holding
section, 30 grip portion 31 gripping body part, 311 holder receiving
portion, 33 grip side lid, 331 holder holding
section, 40 slide portion, 41 shaft, 41A shaft
portion, 44 sliding moving parts, 45 the bush (bearing portion),
46 bush holder 47 receiving the
bushing, 50 holding portion, 51 shaft-side engaging
portion, 51A tapered portion, 51B recesses, 51C flange
portion, 54 sliding-side engaging portion, 541 a flange
Department, 542 cylindrical portion, 542A
protrusion, 542B taper accommodating portion, 542C thin
portion, 54A protrusion (second embodiment)

claims
[Requested item 1]
　A body having a blade for coating removal,
　the grip portion for gripping an optical fiber,
　said body and sliding unit which is linked to close and separate the said holding part
comprises a,
　the coating of the optical fiber by the cutter after incision, the by separating the body and the grip portion, a coating removing apparatus for removing the coating of the optical fiber,
　the sliding portion is maximum separation state between the main body and the grip part coating removing apparatus characterized by having a holding portion for holding.
[Requested item 2]
　A coating removal system according to claim 1,
　when force exceeding the weight of the gripper is applied in a direction to approach the said body and said gripping portion, said maximum separation state holding by the holding portion coating removing apparatus characterized by being released.
[Requested item 3]
　A coating removal system according to claim 1 or 2,
　wherein the sliding portion includes a shaft,
　the one's body and the grip portion, and then secure the ends of the shaft,
　the body and the the other gripping portion, said shaft having a slidable sliding portion,
　the holding portion includes a shaft-side engaging portion provided at the end portion opposite to the fixed side of the shaft, and a sliding side engaging portion provided on a side of the sliding portion, the said shaft-side engaging portion and the sliding-side engaging portion to hold the maximum separation state by engaging coating removing apparatus according to claim.
[Requested item 4]
　A coating removal system according to claim 3,
　wherein the shaft-side engaging portion has a tapered portion which becomes thicker closer to the terminal end,
　the sliding-side engaging portion is formed of an elastic member cage, coating removing apparatus characterized by deformed by the tapered portion.
[Requested item 5]
　A coating removal system according to claim 3 or 4,
　wherein the shaft-side engaging portion has a recess,
　the sliding-side engaging portion, characterized in that it has a convex portion engaged with the recess the coating removal device.
[Requested item 6]
　A coating removal system according to claim 5,
　wherein the sliding-side engaging portion has a cylindrical portion for inserting the shaft,
　wherein the convex portion is a portion which protrudes inwardly of the cylindrical portion,
　the outside of the cylindrical portion provided with the protrusion, the coating removing apparatus characterized by thin portion is formed.
[Requested item 7]
　A coating removal system according to claim 3,
　wherein the shaft-side engaging portion includes a tapered portion becomes thicker closer to the terminal end, and than the tapered portion provided on a side of the terminal portion recess a,
　the sliding-side engaging portion, the coating removing apparatus characterized by having a tapered accommodating portion for accommodating the tapered portion, and a convex portion engaged with the recess.
[Requested item 8]
　A coating removal system according to any one of claims 3-7,
　wherein the sliding portion is coated removing apparatus characterized by having a ball bearing for slidably supporting the shaft.
[Requested item 9]
　A coating removal system according to any one of claims 1-8,
　wherein the body has a mounting portion for mounting said optical fiber,
　and said main body and said gripping portion at the maximum separation state spacing length jacket stripper and wherein the longer than the length of the can be placed the optical fibers in the mounting section.