CN202837588U

CN202837588U - Fiber cutter, fiber cutter built-in box

Info

Publication number: CN202837588U
Application number: CN2012202409851U
Authority: CN
Inventors: 田端学
Original assignee: Fujikura Ltd
Current assignee: Fujikura Ltd; Viscas Corp
Priority date: 2011-12-28
Filing date: 2012-05-25
Publication date: 2013-03-27
Anticipated expiration: 2022-05-25
Also published as: JP2013137445A; JP5205508B1; KR101513955B1; KR20130076750A

Abstract

The utility model provides a fiber cutter, a fiber cutter built-in box. The fiber cutter comprises an external packaging box, a device body and a movable unit having cutter parts, wherein the external packaging box has a top plate portion and an external surface, the device body has a fiber carrying table arranged at the top plate portion and used for supporting fiber, a spring for cutter frame moving and a cutter frame stopper portion, the device body is arranged in the external packaging box, the movable unit having the cutter parts comprises a cutter frame and the cutter parts, the cutter parts are mounted at the cutter frame, scratch is formed at a glass fiber portion of the fiber, the movable unit having the cutter parts is arranged at the device body.

Description

Optical fiber cutter, the built-in box of optical fiber cutter

Technical field

The utility model relates to the knife rest that utilizes spring force that blade insert will be installed and moves, thereby and utilizes above-mentioned blade insert partly to form the built-in box of optical fiber cutter that scratches the optical fiber cutter that cuts off, this optical fiber cutter is accommodated in receiver at the glass fibre of optical fiber.

Background technology

Cutting-off method as Silica-Based Optical Fibers, extensively adopt following method: use the circular knife that is formed by high materials of optical fiber such as hardness ratio superhard alloys, after the glass fibre of optical fiber partly forms initial scuffing, thereby from the direction press-bending optical fiber opposite with initial scuffing scuffing growth (namely riving) is cut off.

Structure as optical fiber cutter, in order to realize above-mentioned cutting-off method, the structure that has optical fiber clamp framework and optical fiber pressing mechanism at apparatus main body is arranged usually, wherein, thereby apparatus main body is so that installed the knife rest of the circular knife mode that can move of sliding and arranged, optical fiber clamp framework is used for optical fiber is fixed in apparatus main body, the optical fiber that the optical fiber pressing mechanism is used for utilizing circular knife to be formed with initial scuffing is from the direction press-bending (for example, Japanese kokai publication hei 8-5844 communique and TOHKEMY 2010-160525 communique) opposite with initial scuffing.As the optical fiber cutter of this structure, in order to realize cutting off the stabilization of quality, also extensively adopt and carry out the structure that elastic force-applying moves it with the spring cutter setting frame, so that knife rest moves with suitable and stable feed velocity.

Optical fiber cutter with structure that the elastic acting force that utilizes spring comes follow rest has following structure usually, namely, carry out push operation from the outer mounted box outside cutter setting frame of apparatus main body, thereby spring is applied be used to the reacting force that knife rest is moved.In this optical fiber cutter, utilize the elastic acting force of spring, make the knife rest that is pressed into the position that moves to regulation by the push operation of carrying out from the outer mounted box outside of apparatus main body from initial position, return to initial position from being pressed into the position.In addition, this optical fiber cutter makes knife rest return to initial position from being pressed into the position by the elastic acting force of spring, circular knife is contacted with the optical fiber that is fixed in optical fiber clamp framework, thereby partly form scuffing at the glass fibre of optical fiber.

Yet in above-mentioned optical fiber cutter, when knife rest is in initial position, wait the press surface of the knife rest front end that carries out push operation for operator finger, be configured in the roughly the same plane of the exterior box outer surfac of apparatus main body on (for example Fig. 1 of patent documentation 2).Therefore, finger need to be inserted into device inside for knife rest being pressed into the cut-out ready position, exist to produce the problem that is pressed into the operability aspects such as deficiency.

In addition, existing optical fiber cutter easily rocks (rocking) inner generation of box when being received into the receiver of carrying usefulness.Therefore, because the box inside surface that produces in carrying and the collision between the optical fiber cutter, position skew, distortion that may production part scratch thereby form at optical fiber, or the precision of the cut-out of optical fiber is exerted an influence.

The utility model content

The utility model In view of the foregoing, its purpose is to provide to improve knife rest is pressed into the operability of the push operation of cutting off ready position with respect to the outer mounted box of apparatus main body, and can eliminate the optical fiber cutter that rocks and the built-in box of optical fiber cutter when being incorporated in receiver simple and reliablely.

In order to solve above-mentioned problem, the utility model provides following structure.

The first utility model is optical fiber cutter, possesses: outer mounted box, and this outer mounted box has top plate portion and outside surface; Apparatus main body, this apparatus main body are arranged in the above-mentioned outer mounted box, and have the optical fiber mounting table, the knife rest that are arranged at above-mentioned top plate portion and support optical fiber and move with spring and knife rest fastener; And with the mobile unit of blade insert, this mobile unit with blade insert is arranged at apparatus main body, and has knife rest and blade insert, and this blade insert is installed on knife rest and partly forms scuffing at the glass fibre of optical fiber.

Can move to cutting off ready position from initial position by the push operation of carrying out from the outside of outer mounted box with the mobile unit of blade insert, above-mentioned initial position is from outer mounted box outstanding position laterally with the mobile unit of blade insert.

The knife rest fastener locks knife rest and is cutting off ready position, and removes the locking that knife rest is removed in operation by locking.

Thereby knife rest moves with spring and to being disposed at the knife rest application of force of cutting off ready position it is moved to initial position.

The elastic acting force that apparatus main body utilizes knife rest to move with spring makes knife rest move to initial position from cutting off ready position, scratches thereby utilize blade insert to form at the optical fiber that is supported on the optical fiber mounting table.

Knife rest can not be pressed into to cutting off ready position from initial position from the outstanding mode of the outside surface of outer mounted box with the front end of knife rest, or knife rest can be pressed into to the cut-out ready position from initial position in the outstanding size of the front end that is in the knife rest that cuts off ready position and the outside surface of the outer mounted box mode less than the outstanding size of the outside surface of the front end of the knife rest that is in initial position and outer mounted box.

The second utility model is on the basis of the optical fiber cutter of the first utility model, also possess: press handle, this is pressed handle and has optical fiber by pressure arm and handle main body, wherein, optical fiber is provided with the optical fiber press section by pressure arm highlightedly at leading section, handle main body is configured to leave to the rear side opposite with apparatus main body by pressure arm from optical fiber, and can be opened and closed to be articulated in apparatus main body, and is formed with the locking releasing section that the cutter setting frame fastener locks the releasing operation; Open and use spring, this is opened with spring optical fiber is carried out elastic force-applying by pressure arm to the direction of opening with respect to apparatus main body; And open limiting mechanism, this is opened limiting mechanism and is formed at the position that is articulated in the apparatus main body place near optical fiber by pressure arm.

The optical fiber press section can be by handle main body with respect to the shutoff operation of apparatus main body and closed with respect to the optical fiber mounting table of apparatus main body.

Lock that releasing section closes the shutoff operation that carries out by the optical fiber press section under the state of optical fiber mounting table and the cutter setting frame fastener locks and removes operation.

Optical fiber by pressure arm form via spring from above-mentioned handle main body along handle main body and the direction of apparatus main body face-off leave.

Be with respect to the optical fiber mounting table in the optical fiber press section and close and the knife rest fastener is limited to knife rest under the state that cuts off ready position, open limiting mechanism and can switch optical fiber and press arm towards restriction and the license of opening the rotation of direction.

Towards the rotation of opening direction, under the state of the limiting mechanism that is opened restriction, can rotate to closing direction by handle main body by pressure arm for the optical fiber that is the state of closing in the optical fiber press section with respect to the optical fiber mounting table.

The 3rd utility model is on the basis of the optical fiber cutter of the second utility model, apparatus main body has a pair of optical fiber mounting table, this a pair of optical fiber mounting table is across the movement of following knife rest and the movable area of mobile blade insert and be disposed at the both sides of movable area, and presses handle and have occipitalia.

By pressing loading in the mode of setting up in part optical fiber, that load between a pair of optical fiber mounting table of a pair of optical fiber mounting table, occipitalia makes by riving by blade insert and has formed the fibercuts that scratches.

By handle main body is rotated to closing direction from the open position for apparatus main body, occipitalia form via spring from handle main body along apparatus main body and the direction of occipitalia face-off leave.

The 4th utility model is to take in the built-in box of optical fiber cutter of the optical fiber cutter of the first utility model, has receiver and is arranged in the receiver and is formed at the pressurized wall of the position of mutually leaving.

Optical fiber cutter is disposed between the pressurized wall.

Utilize knife rest to move the elastic acting force of using spring, make the front end of the outstanding mobile unit with blade insert from the outside that cuts off the outside mounted box of ready position and the rearward end of apparatus main body, respectively with pressurized wall butt, thereby optical fiber cutter is remained between the pressurized wall.

The 5th utility model is to take in the built-in box of optical fiber cutter of the optical fiber cutter of the second utility model or the 3rd utility model, has receiver and is arranged in the receiver and is formed at the pressurized wall of the position of mutually leaving.

Optical fiber cutter is disposed between the pressurized wall.

Limiting mechanism is opened in utilization, limits optical fiber press section in the closed position and moves towards the departure direction for the optical fiber mounting table.

The 6th utility model on the basis of the built-in box of optical fiber cutter of the 4th utility model or the 5th utility model, the cover that receiver has box main body and can open and close with respect to box main body.

Optical fiber cutter is with the state of the base plate face-off of the box main body of the bottom surface of apparatus main body and receiver, is disposed between the outstanding pressurized wall that arranges in the position of mutually leaving of the single face side of the base plate of box main body.

According to optical fiber cutter of the present utility model, knife rest for apparatus main body, from the initial position of giving prominence to from outer mounted box towards the outside, front end with knife rest is not pressed into to cutting off ready position from initial position from the outstanding mode of the outside surface of outer mounted box, perhaps, be pressed into to the cut-out ready position from initial position in the outstanding size of the front end that is in the knife rest that cuts off ready position and the outside surface of the outer mounted box mode less than the outstanding size of the outside surface of the front end of the knife rest that is in initial position and outer mounted box, thus, can make knife rest be limited to the knife rest fastener.Therefore, can improve knife rest to the operability of cutting off the push operation that ready position is pressed into.

In addition, according to the built-in box of optical fiber cutter of the present utility model, owing to utilizing knife rest to move with the elastic acting force of spring optical fiber cutter is remained between the pressurized wall of the position of mutually leaving of receiver formation, so can eliminate rocking of when being accommodated in receiver optical fiber cutter simple and reliablely.

Description of drawings

Fig. 1 is the overall perspective view of the optical fiber cutter of expression embodiment of the present utility model.

Fig. 2 is the sketch of original state of the optical fiber cutter of presentation graphs 1.

Fig. 3 is illustrated in the optical fiber cutter of Fig. 1, the sketch of the state the when mobile unit with blade insert is disposed at the cut-out ready position.

Fig. 4 is illustrated in the optical fiber cutter of Fig. 1, the sketch of the state when making the optical fiber mounting table butt of the optical fiber press section of pressing handle and apparatus main body.

Fig. 5 is illustrated in the optical fiber cutter of Fig. 1, with the sketch with the mobile unit of the blade insert state after the locking of cutting off ready position is removed.

Fig. 6 is illustrated in the optical fiber cutter of Fig. 1, and the optical fiber that utilizes the occipitalia press handle will form initial scuffing bends and the sketch of state after cutting off.

Fig. 7 is that expression is from the stereographic map of the exterior structure of the optical fiber cutter of rear side observation Fig. 1.

Fig. 8 A is the overall perspective view that limiting mechanism describes of opening to the optical fiber cutter of Fig. 1.

Fig. 8 B is the exploded perspective view that limiting mechanism describes of opening to the optical fiber cutter of Fig. 1.

Fig. 8 C is the partial sectional view that limiting mechanism describes of opening to the optical fiber cutter of Fig. 1.

Fig. 9 is that expression is from the figure of the structure of the leading section of pressing handle of the optical fiber cutter of face-off face side observation Fig. 1 of apparatus main body.

Figure 10 is the stereographic map of an example of the knife rest latch for printed circuit (knife rest fastener) of the optical fiber cutter of presentation graphs 1.

Figure 11 be expression for the optical fiber cutter of Fig. 1, make the optical fiber press section of pressing handle and the optical fiber mounting table butt of apparatus main body, and the sketch of the state when utilizing backing pin to limit with respect to the rotation of opening direction.

Figure 12 A is that expression is accommodated in the vertical view that the method for receiver describes to the optical fiber cutter with Fig. 1, and the apparatus main body that to be expression be configured in the optical fiber cutter of the state that cuts off ready position with knife rest is accommodated in the figure of the state behind the box main body of receiver.

Thereby the knife rest of the optical fiber cutter that Figure 12 B is expression makes Figure 12 A is from cutting off ready position to the front side-prominent figure that optical fiber cutter is remained in the state between the box wall of device.

To be expression be accommodated in the cut-open view of the built-in box of optical fiber cutter behind the receiver with the optical fiber cutter of Fig. 1 to Figure 13.

Embodiment

Below, with reference to accompanying drawing an embodiment of the present utility model is described.

As shown in Figure 1 and Figure 2, optical fiber cutter 10 possesses apparatus main body 20 and presses handle 30.

In apparatus main body 20, take in the glass fibre that is useful at optical fiber 1 partly form cut-out (riving) usefulness initial scuffing blade insert 21 and blade insert 21 is installed on the mobile unit 23 with blade insert of knife rest 22, mobile unit 23 can be slided with respect to outer mounted box 24.

Pressing handle 30 is articulated in the outer mounted box 24 of apparatus main body 20 and is set to can open and close with respect to apparatus main body 20.

In optical fiber cutter 10, cut off the occipitalia 33b of (riving) for the optical fiber 1 that will form initial scuffing from the direction press-bending opposite with initial scuffing and with optical fiber 1, be arranged at and press handle 30.

This optical fiber cutter 10 is that the glass fibre to optical fiber 1 partly forms initial scuffing (wound) and the device by bending the optical fiber 1 that has formed initial scuffing being cut off.

As shown in Figure 1 and Figure 2, the outer mounted box 24 of apparatus main body 20 has the structure of fixed cover parts 24b on base plate 24a.

Base plate 24a and cap assembly 24b are respectively plastic one-body molded product for example, but are not limited to plastics, also can adopt metal products formed.

Cap assembly 24b as shown in the figure is plastic one-body molded product.

Cap assembly 24b has top plate portion 24c, side plate 24d and the main body 24e of cover section.Top plate portion 24c is configured to, and extends along base plate 24a above tabular base plate 24a.Side plate 24d forms, and extends outstanding downwards from the side of top plate portion 24c.The main body 24e of cover section extends in the mode that its section forms approximate U font.

Shown in Fig. 2, Fig. 8 C, the main body 24e of cover section comprises that the rear end (end on the right side Fig. 2, Fig. 8 C) from top plate portion 24c extends outstanding rear wall parts 24f downwards.This rear wall parts 24f forms, and is not only continuous with top plate portion 24c, also continuous with the rear end of the side wall portion 24d of the main body 24e of cover section.

In addition, as shown in Figure 1, be formed with the 24g(of the holder stage section holder stage of the structure of fiber_optic 2 of optical fiber 1 being controlled and fixing for mounting at cap assembly 24b).

The side of the 24g of holder stage section from 2 side wall portion 24d of the main body 24e of cover section, outstanding to the lateral direction of device.The 24g of holder stage section is positioned at side (Fig. 2) middle body of device.

As shown in Figure 1, the front end of outer mounted box 24 offers knife rest bullport 24h.Knife rest bullport 24h is by the cap assembly 24b(cover main body 24e of section of base plate 24a and U font) leading section surround, the section of knife rest bullport 24h is rectangle.In knife rest bullport 24, be inserted with the knife rest 22 with the mobile unit 23 of blade insert, moving slidably at the axis direction (optical fiber cutter fore-and-aft direction) of knife rest bullport 24h.

As shown in Figure 1 and Figure 2, the knife rest 22 with the mobile unit 23 of blade insert is that section is the parts of the bulk of the approximate rectangular elongated shape that extends.

In addition, in this manual, for the apparatus main body 20 of optical fiber cutter 10, before the position of the front end institute opening of knife rest bullport 24h is called, will be called afterwards with the position of the position opposite of the front end institute opening of knife rest bullport 24h and describe.The position on right side is corresponding with the front position of apparatus main body 20 among Fig. 2～Fig. 6, and the position in left side is corresponding with the rear position of apparatus main body 20.In other words, the left and right directions among Fig. 2～Fig. 6 is corresponding with the fore-and-aft direction of apparatus main body 20.

The part section (front side portion 22a), vertical with the length direction of knife rest 22 from the forward side of rearward end (end on Fig. 2 right side) that blade insert 21 is installed (Fig. 2 left side) of knife rest 22, unanimous on the whole with the section (perpendicular to the section of axis direction) of the knife rest bullport 24h of outer mounted box 24.Mobile unit 23 with blade insert is set to, insert in the knife rest bullport 24h of exterior box 24 in the front side portion 22a with knife rest 22, and with being accommodated in the outer mounted box 24 by the part integral body of rear side from front side portion 22a of knife rest 22, thereby can make knife rest 22 mobile slidably at the axis direction of knife rest bullport 24h with respect to outer mounted box 24.

Mobile unit 23 with blade insert is guided by the knife rest bullport 24h of outer mounted box 24 and the guide rail (not shown) that is arranged in the outer mounted box 24, thereby mobile slidably at fore-and-aft direction with respect to outer mounted box 24.

Such as Fig. 2, shown in Figure 3, the operator utilizes finger to wait the front end face 22b with knife rest 22 to press to apparatus main body 20 rear sides, thus the mobile unit 23 of moving belt blade insert.

Specifically, can be from initial position (the mobile unit 23 residing positions with blade insert of Fig. 2) to cutting off ready position (the mobile unit 23 residing positions with blade insert of Fig. 3) mobile (being pressed into) with the mobile unit 23 of blade insert.

Here, initial position be the leading section of knife rest 22 from outer mounted box 24 side-prominent position forward, that is, and the mobile unit 23 residing positions with blade insert shown in Figure 2.

In addition, cut off ready position and be that to be in the leading section of the knife rest 22 that cuts off ready position than the leading section of the knife rest 22 that the is in initial position position little with respect to the size of outer mounted box 24, be the mobile unit 23 residing positions with blade insert shown in Figure 3 with respect to the size (distance, outstanding size) of outer mounted box 24.In addition, outstanding size refers to that knife rest 22 is from outer mounted box 24 length of side-prominent part forward.

Such as Fig. 2, shown in Figure 3, apparatus main body 20 have spring 25(move hereinafter referred to as knife rest use spring), this spring is followed from initial position and is carried out elastic deformation with being pressed into of mobile unit 23 of blade insert towards what cut off that ready position carries out.

In optical fiber cutter 10 as shown in the figure, specifically, it is draft helical springs that knife rest moves with spring 25.

Move with spring 25 for knife rest, one end (end of the axis direction of draft helical spring, first end) is installed on the 24i(of the spring fitting section box side spring fitting section of outer mounted box 24 leading sections (end in Fig. 2 left side)), the other end (the second end) is installed on the 22c(of the spring fitting section knife rest side spring fitting section of knife rest 22), thus be arranged in the outer mounted box 24.When the mobile unit 23 with blade insert was in initial position, the knife rest side spring fitting 22c of section was located at the position of leaving to the rear of the box side spring fitting 24i of section on apparatus main body 20 fore-and-aft directions.

In apparatus main body 20, be accompanied by from initial position to cut off that ready position carries out with being pressed into of the mobile unit 23 of blade insert, knife rest moves with spring 25 be stretched (elastic deformation).From initial position to the movement with the mobile unit 23 of blade insert of cutting off that ready position carries out, by moving mode cutter setting frame 22 with the elastic acting force of spring 25 and carry out push operation and just can realize overcoming knife rest.

In the mobile unit 23 with blade insert, the not shown restriction of advancing that is arranged at highlightedly knife rest 22 with spacing teat from interior spacing contacting wall (not shown) rear, front side of outer mounted box 24 and the position of the spacing contacting wall butt in front side, it is the extreme position that advances with respect to outer mounted box 24, in this case, the extreme position that advances is initial position.

That be arranged at highlightedly knife rest 22 not shown retreats restriction with the position (with respect to the retreat extreme position of outer mounted box 24) of spacing teat from the front side butt of the front side of the interior spacing contacting wall of rear side (not shown) of outer mounted box 24 and the spacing contacting wall of rear side with the cut-out ready position of the mobile unit 23 of blade insert.

As shown in Figure 2, below will be in initial position with the mobile unit 23 of blade insert, and the state of the optical fiber cutter 10 when pressing handle 30 and being in the open position of opening with respect to apparatus main body 20 is called original state.

In the mobile unit 23 with blade insert with the optical fiber cutter 10 of original state, be pressed into and arrive in the situation of cutting off ready position from the outside mounted box 24 of initial position, as shown in Figure 3, be installed on the knife rest latch for printed circuit 26 and the front side that engages teat 22d that is arranged at highlightedly knife rest 22 (Fig. 3 left side) engaging of outer mounted box 24.Therefore, the mobile unit 23 of check strap blade insert is with respect to outer mounted box 24 advance (relatively moving to Fig. 3 left side with respect to outer mounted box 24).Thus, be limited to the cut-out ready position with the mobile unit 23 of blade insert in the mode that overcomes knife rest and move with the elastic acting force of spring 25.

In other words, cutting off ready position is knife rest latch for printed circuit 26 and the position that teat 22d engages that engages of knife rest 22.Thereby knife rest latch for printed circuit 26 as the mobile unit 23 that engage the check strap blade insert with knife rest 22 to initial position advance mobile, and will be limited to the mobile unit 23 of blade insert the knife rest fastener of cut-out ready position and bring into play function.

Knife rest latch for printed circuit 26 is installed as and can rotates around turning axle 24k by the axle support on the mounted box 24 outside.Knife rest latch for printed circuit 26 has: engaging pawl 26b, and it is arranged at the downside that the leading section of teat 26c is extended in the front side highlightedly, and this front side is extended teat 26c and is extended outstanding from the part (central portion 26a) with turning axle 24k to the device front side; Extend teat 26d with rear side, it extends outstanding from central portion 26a to rear side.

Such as Fig. 2, shown in Figure 10, knife rest latch for printed circuit 26 has the spring 26f(latch for printed circuit spring that is installed on front side extension teat 26c.Be compression helical spring in illustrated example).It is outstanding upward that latch for printed circuit spring 26f extends teat 26c from the front side of knife rest latch for printed circuit 26.On the other hand, extend teat 26d at rear side and be formed with the tabular 26e(of hammer section with reference to Figure 10).

Knife rest latch for printed circuit 26 than turning axle 24k by the quality (weight) of rear side greater than than the forward side of the turning axle 24k weight of (comprising latch for printed circuit spring 26f).

As shown in Figure 2, when optical fiber cutter 10 is in original state, the upper end of the latch for printed circuit spring 26f of knife rest latch for printed circuit 26 and the top plate portion 24c butt of cap assembly 24b.Consequently, because latch for printed circuit spring 26f, extend teat 26c in the front side and extends outstanding from turning axle 24k to the front side and rear side extends teat 26d and extends the direction of giving prominence to from turning axle 24k to rear side and support.

In addition, in example as shown in the figure, be direction, the upper end of compression helical spring and top plate portion 24c butt with respect to top plate portion 24c approximate vertical as the axis direction of the compression helical spring of latch for printed circuit spring 26f.

As shown in Figure 2, when optical fiber cutter 10 is in original state, more to touch face 26g in the front side (Fig. 2 left side) of engaging pawl 26b to the offside butt that forms in the mode of below of rear side (Fig. 2 right side), be supported on can with the upper end butt that engages teat 22d of knife rest 22 and the position of engaging.Therefore, if will be pressed into to cutting off ready position from initial position with the mobile unit 23 of blade insert, then touch under the state of face 26g and the upper end butt that engages teat 22d of knife rest 22 at butt, engaging pawl 26b touches and further crosses the engaging teat with engaging teat 22d, enters the front side that engages teat 22d and engages.

In addition, in the upper end of the engaging teat 22d of knife rest 22 and touch the position of face 26g butt at the butt for the engaging pawl 26b front side of knife rest latch for printed circuit 26, be formed with more and touch face 22e to the offside pawl in the below of rear side.Utilize pawl to touch face 22e, the engaging pawl 26b that makes knife rest latch for printed circuit 26 successfully with from initial position engages teat 22d engaging to what cut off that ready position moves with the mobile unit 23 of blade insert.

The handle 30 of pressing that is shown in an open position is rotated to the direction of closing with respect to apparatus main body 20, thus, by knife rest latch for printed circuit 26 be limited to cut off ready position can remove the locking of knife rest latch for printed circuit 26 with the mobile unit 23 of blade insert.Removed the mobile unit 23 with blade insert of the locking of knife rest latch for printed circuit 26, moved with the elastic acting force of spring 25 by knife rest and move to initial position from cutting off ready position.

The releasing of lockings that realize by the rotation of pressing handle 30 in addition,, knife rest latch for printed circuit 26 cutter setting frames 22 describes in the back particularly.

Such as Fig. 1～shown in Figure 3, apparatus main body 20 has the optical fiber mounting table 27 for mounting optical fiber 1.Optical fiber mounting table 27 outside mounted box 24, specifically on the central portion of the top plate portion 24c of cap assembly 24b, arrange highlightedly.

As shown in Figure 1, at the 24g(of holder stage section with reference to Fig. 1) top, be formed be used to the support accommodating groove 24j that takes in structure of fiber_optic 2 and position.Optical fiber mounting table 27 is positioned at the extending direction of support accommodating groove 24j at the Width of device.

In optical fiber cutter 10, be accommodated in support accommodating groove 24j and load in the 24g(of holder stage section with reference to Fig. 1 at the structure of fiber_optic 2 that will control and be fixed with optical fiber 1) time, can being positioned on the optical fiber mounting table 27 from structure of fiber_optic 2 outstanding parts optical fiber 1.

As shown in Figure 1, with the blade insert 21 of the mobile unit 23 of blade insert, specifically discoid circular knife.Blade insert 21 is outstanding at top plate portion 24c via the upper slotted hole 24m that is formed extended at both sides along the fore-and-aft direction of apparatus main body 20 of the top plate portion 24c of the cap assembly 24b of mounted box 24 outside.Slotted hole 24m extend to form into, be accompanied by with the mobile unit 23 of blade insert from initial position to the movement of cutting off ready position and corresponding to the movable range of the movement of initial position from cutting off ready position with blade insert 21.Blade insert 21 keeps via slotted hole 24m outside outstanding state on the mounted box 24, is accompanied by with the movement of the mobile unit 23 of blade insert to move.

Optical fiber mounting table 27 be arranged on the top plate portion 24c, across the position of the device Width both sides of slotted hole 24m.

As shown in Figure 1 and Figure 2, press handle 30 can be articulated in apparatus main body 20 rotationally via pivot 11 rearward end.This is pressed handle 30 and forms from being installed on the outstanding elongated plate-like of base end part extension of pivot 11.

Pivot 11 is in the rearward end of the cap assembly 24b of apparatus main body 20, is supported on from the bearing portion 24n(that is arranged at highlightedly device Width both sides with reference to Fig. 1 with the length direction both ends) state, extend the ground configuration along the device Width.In addition, pivot 11 can't rotate with respect to apparatus main body 20.

As shown in Figure 1, illustrated optical fiber cutter 10 has and carries out opening with spring 12 of elastic force-applying to pressing handle 30 to the direction of opening with respect to apparatus main body 20.

Specifically, open with 12 pairs on spring be arranged at press handle 30 optical fiber by pressure arm 32(aftermentioned) carry out elastic force-applying to the direction of opening with respect to apparatus main body 20.

Specifically, opening with spring 12 is torsionspring.

As opening with spring 12, as long as can carry out elastic force-applying to the direction of opening with respect to apparatus main body 20 and then be not particularly limited pressing handle 30, also can adopt such as leaf spring etc.

As shown in Figure 1 and Figure 2, press the handle main body 31 that handle 30 has elongated shape, be set to rotate with respect to apparatus main body 20 thereby this handle main body is installed in pivot 11.The base end part of one end of the length direction of handle main body 31 is installed in pivot 11.

Handle main body 31 is installed on apparatus main body 20 in the Width of a pair of handle side board 31b mode consistent with the Width of device (Width of apparatus main body 20).

As shown in Figure 2, be provided with in the rearward end (end on Fig. 2 right side) of apparatus main body 20 and open limiting mechanism 40, this is opened limiting mechanism and has backing pin 41 outstanding on the outside mounted box 24.At the optical fiber of pressing handle 30 by pressure arm 32(aftermentioned) base end part be provided with highlightedly the open position restriction protrusion 32e of section, outstanding upper end butt on the outside mounted box 24 of this open position restriction protrusion 32e of section and backing pin 41.

Optical fiber is pressed the open position restriction protrusion 32e of section of pressure arm 32, by opening with the elastic acting force of spring 12 from the upper end butt of device rear side and backing pin 41.Press in the pressure arm 32 at optical fiber, the open position restriction protrusion 32e of section is from the position of device rear side and backing pin 41 upper end butts, is the rotation limit position of the direction opened with respect to apparatus main body 20.This is opened the direction rotation limit position and is also referred to as open position.

For pressing handle 30 integral body, optical fiber is pressed the open position restriction protrusion 32e of section of pressure arm 32 from the position of device rear side and backing pin 41 upper end butts, is the rotation limit position of opening direction (open position) with respect to apparatus main body 20.

As shown in Figure 2, the handle main body of pressing handle 30 31 that is shown in an open position is from base end part (Fig. 2 left side) obliquely upward extension towards the device front side.In addition, handle main body 31 is more to be arranged at obliquely on the apparatus main body 20 to the larger mode of distance of installing front side distance means main body 20.What be shown in an open position presses handle 30 integral body along handle main body 31, more to tilt from the apparatus main body 20 larger mode of distance of leaving upward to installing the front side.

Handle main body 31 has the 31a of backboard section of elongated plate-like.Excircle at the 31a of backboard section of handle main body 31, form along handle side board 31b, base end side board 31c, the front board 31d that the length direction of the 31a of backboard section extends in the both end sides of the Width of the 31a of backboard section, vertical and at the one-sided outstanding sprag fashion of the 31a of backboard section with respect to the 31a of backboard section.A pair of handle side board 31b, base end side board 31c, front board 31d consist of the one-sided encirclement of the 31a of backboard section and continuous surrounding wall (handle main body surrounding wall).Base end side board 31c is arranged at the base end part of handle main body 31.Front board 31d is arranged at the leading section opposite with base end part of handle main body 31.

The support or oppose position (opposite side) relative with apparatus main body 20 of board 31a of handle main body surrounding wall arranges highlightedly.

As shown in Figure 1 and Figure 2, handle main body 31 has pivot patchhole (not shown), and this pivot patchhole is formed at the part of the base end part that is positioned at handle main body 31 of a pair of handle side board 31b.Handle main body 31 inserts in base end part outward the pivot 11 that passes through from the pivot patchhole, is set to rotate around the central shaft of pivot 11.

The base end part of handle main body 31 (specifically, being positioned at the part of the base end part of a pair of handle side board 31b) is outer to be inserted in pivot 11 and is configured between the bearing portion 24n of Width both end sides of apparatus main body 20.

As shown in Figure 2, press handle 30 in the 31a of backboard section and positions apparatus main body 20 opposite sides of handle main body 31, have along the length direction of the 31a of backboard section and extend the optical fiber of ground configuration by pressure arm 32 and occipitalia arm 33.

Optical fiber has by pressure arm 32: press pressure arm main body 32a, should press pressure arm main body 32a and extend the ground configuration along handle main body 31; With optical fiber press section 32b, this optical fiber press section 32b arranges highlightedly at the leading section with can be around the base end part that the central shaft of pivot 11 is installed rotationally opposite by pressure arm main body 32a.

Optical fiber press section 32b is by pressing the operation that handle 30 closes with respect to apparatus main body 20 and be pressed into the parts of optical fiber 1 in the optical fiber mounting table 27 of apparatus main body 20.Optical fiber press section 32b is arranging with one of apparatus main body 20 face-offs by pressure arm main body 32a leading section side-prominently.

As shown in Figure 1, form tabular by pressure arm main body 32a.

Optical fiber press section 32b is arranged at two places by pressure arm main body 32a in the mode corresponding with a pair of optical fiber mounting table 27 of apparatus main body 20.

As shown in Figure 2, optical fiber by pressure arm 32 by spring 34(optical fiber by pressing spring) and arrange from the 31a of backboard section with leaving, above-mentioned spring 34 is with between configuring by the mode between the 31a of backboard section of pressure arm main body 32a and handle main body 31.

As shown in Figure 2, be provided with highlightedly hook-shaped pin snap-latch piece 32d in the rear side by pressure arm main body 32a, this pin snap-latch piece 32d can from the 31a of the backboard section direction of handle main body 31 be arranged at the anti-shotpin 31f of coming off of handle main body 31 leading sections and engage.Refer to by pressure arm main body 32a and opposite with a side of apparatus main body 20 a face-offs side by the rear side of pressure arm main body 32a.

Such as Fig. 2, shown in Figure 9, the anti-shotpin 31f that comes off is configured to, and by the length direction both ends being installed on handle side board 31b, thereby is erected between a pair of handle side board 31b, and extends at the Width of handle main body 31.

As shown in Figure 2, be sticked in when coming off anti-shotpin 31f from the 31a of the backboard section direction of handle main body 31 at pin snap-latch piece 32d, by the almost whole face-off face side that is configured in handle main body 31 of the leading section of pressure arm main body 32a.By pressure arm main body 32a from leading section to the base end part side almost integral body be incorporated in handle main body 31 inboards.

Such as Fig. 5, shown in Figure 6, optical fiber is pressed by the mode of the elastic acting force of pressing spring 34 31a of backboard section to handle main body 31 to overcome optical fiber by pressure arm 32, thereby can be made the position that approaches to pin snap-latch piece 32d and the 31a of backboard section butt by pressure arm main body 32a and the 31a of backboard section.Pressing in the handle 30 of as shown in the figure optical fiber cutter 10, when making optical fiber by the pin snap-latch piece 32d of pressure arm 32 and the 31a of backboard section butt, the thickness of tabular leading section by pressure arm main body 32a over half is incorporated in handle main body 31 inboards.At this moment, press pressure arm main body 32a leading section from handle main body 31 to the outstanding size of face-off direction, the size when engaging with the anti-shotpin 31f that comes off less than the pin snap-latch piece 32d that makes optical fiber by pressure arm 32.

In addition, in optical fiber cutter 10 as shown in the figure, optical fiber is arranged at by pressing spring 34 and presses handle 30.Specifically, optical fiber is compression helical springs by pressing spring 34, and an end of its axis direction is installed on by pressure arm main body 32a.Optical fiber is not installed on the 31a of backboard section of handle main body 31 by the other end of the axis direction of pressing spring 34.

Yet, also can form, optical fiber is not installed on by an end of the axis direction in the pressing spring 34 presses arm main body 32a, but the other end of axis direction is installed on the 31a of backboard section of handle main body 31.

Optical fiber is not limited to compression helical spring by pressing spring 34, also can use leaf spring etc.

Optical fiber except being installed on the structure by the side of pressure arm main body 32a and the 31a of backboard section, can also be the structure that is installed on by the both sides of pressure arm main body 32a and the 31a of backboard section by pressing spring 34.

As shown in Figure 2, occipitalia arm 33 has: occipitalia arm main body 33a, and this occipitalia arm main body 33a extends along handle main body 31; With occipitalia 33b, this occipitalia 33b arranges highlightedly at the leading section with can be around the base end part that the central shaft of pivot 11 is installed rotationally opposite of occipitalia arm main body 33a.Occipitalia 33b by pressing handle 30 with respect to the shutoff operation of apparatus main body 20 from the top and be set up in apparatus main body 20 a pair of optical fiber mounting table 27 and by part butt optical fiber 1, between a pair of optical fiber mounting table 27 that loaded.

In addition, occipitalia arm 33 has alignment tabs 33c, and this alignment tabs 33c arranges highlightedly at the leading section that is provided with highlightedly occipitalia 33b of occipitalia arm main body 33a and the pars intermedia between the base end part.

Occipitalia 33b and alignment tabs 33c be arranged at highlightedly occipitalia arm main body 33a with opposite side apparatus main body.

As shown in Figure 3, for alignment tabs 33c, be under the state that cuts off ready position in the mobile unit 23 with blade insert, when when pressing handle 30 and carried out shutoff operation with respect to apparatus main body 20, the protruding end of alignment tabs 33c and the prominent wall 22f(in the location that arranges highlightedly on knife rest 22 are with reference to Fig. 1, Fig. 3) the upper surface butt.

From the protruding end of the outstanding alignment tabs 33c of occipitalia arm main body 33a and the upper surface butt of the prominent wall 22f in location of knife rest 22, thereby occipitalia 33b can be configured in accurately from the position of top optical fiber 1 butt that quilt is loaded with a pair of optical fiber mounting table 27 that is set up in apparatus main body 20.

As shown in Figure 2, occipitalia arm 33 is set to, by the spring 35(occipitalia spring that is configured between the 31a of backboard section of occipitalia arm main body 33a and handle main body 31) and away from the 31a of backboard section.

In addition, occipitalia arm 33 is configured in the 31a of backboard section of handle main body 31 and optical fiber by between the pressure arm 32.And occipitalia arm 33 is configured in the inside that the handle main body surrounding wall by the periphery that is located in handle main body 31 impales.

The figure of Fig. 9 structure that to be expression observe from the face-off face side of pressing handle 30 (direction relative with apparatus main body 20).

As shown in Figure 9, the occipitalia 33b of occipitalia arm 33 and alignment tabs 33c are via the fenestra 32c that forms at the tabular leading section of pressing pressure arm main body 32a, and be outstanding to face-off face direction from pressing pressure arm main body 32a.Fenestra 32c is formed at the central portion of the device Width by pressure arm main body 32a (pressing the Width of pressure arm main body 32a) of elongated plate-like.

In addition, optical fiber is arranged at Width both end sides by pressure arm main body 32a by a pair of optical fiber press section 32b of pressure arm 32 across fenestra 32c.

In optical fiber cutter 10 as shown in the figure, occipitalia spring 35 is arranged at handle main body 31.Specifically, occipitalia spring 35 is compression helical spring, and an end of its axis direction is installed in the 31a of backboard section of handle main body 31.The other end of the axis direction of occipitalia spring 35 is not installed on occipitalia arm 33.

Yet, also can form, an end of the axis direction in the occipitalia spring 35 is not installed on handle main body 31, but the other end of axis direction is installed on occipitalia arm main body 33a.

Occipitalia spring 35 is not limited to compression helical spring, also can use leaf spring etc.

Occipitalia spring 35 can also be the structure that is installed in the both sides of occipitalia arm main body 33a and the 31a of backboard section except the side's of the 31a of backboard section that only is installed in handle main body 31 and occipitalia arm main body 33a structure.

Shown in Fig. 7, Fig. 8 A～C, open limiting mechanism 40 and have functional unit 42, this functional unit 40 is provided with highlightedly be used to the pair of pin of controlling backing pin 41 and controls sheet 42b on the operating sheet 42a of the rear wall parts 24f outside surface side of the outer mounted box 24 that is disposed at apparatus main body 20.In functional unit 42, make pair of pin control sheet 42b and pass through from the guiding fenestra 24p that is formed at rear wall parts 24f, give prominence to rear wall parts 24f inner surface side thereby make pin control sheet 42b.

Open limiting mechanism 40 and have lifting unit 43, this lifting unit 43 is equipped with the backing pin 41 that arranges in rear wall parts 24f inside surface (outer mounted box 24 inside surfaces) side at functional unit 42.Backing pin 41 be embedded in be arranged on highlightedly operating sheet 42a and from the pair of pin that guiding fenestra 24p passes through control sheet 42b, to the outstanding part of the inside surface direction of rear wall parts 24f, and operating member 42 is supported at above-below direction and extends.

The operating sheet 42a of functional unit 42 forms the size of the guiding fenestra 24p that can not enter rear wall parts 24f.Operating sheet 42a as shown in the figure forms tabular, and configures along rear wall parts 24f outside surface.

Yet the shape of operating sheet 42a is not limited to tabular, also can suitably carry out design alteration.

Shown in Fig. 8 A, Fig. 8 B, the pair of pin of functional unit 42 is controlled sheet 42b and is opened the compartment of terrain setting at the mutual sky of the Width of apparatus main body 20.

In addition, functional unit 42 has isolation tab 42c, and this isolation tab 42c controls between the sheet 42b outstanding from operating sheet 42a to pair of pin.Isolation tab 42c controls sheet 42b from the outstanding size of operating sheet 42a less than pair of pin.

Pair of pin is controlled sheet 42b and is formed, and its leading section is crooked in mode close to each other.Backing pin 41 have at the length direction central portion form than the little minor diameter part 41a(of the section diameter of backing pin 41 both end sides with reference to Fig. 8 B, Fig. 8 C).Minor diameter part 41a is maintained at by pair of pin and controls the leading section of sheet 42b and the inboard that isolation tab 42c impales, and thus, backing pin 41 is fixed in functional unit 42.

Shown in Fig. 8 C, functional unit 42 can be up and down with respect to rear wall parts 24f in the inside surface of the up and down both end sides of guiding fenestra 24p and the zone of controlling the gap of guaranteeing between the sheet 42b from the pin that guides fenestra 24p to pass through.Functional unit 42 is up and down with respect to rear wall parts 24f by the 24p guiding of guiding fenestra.

For opening limiting mechanism 40, for example the operator makes operating sheet 42a with respect to rear wall parts 24f with finger and moves in the above-below direction slip, thereby lifting unit 43 integral body are with respect to outer mounted box 24 liftings.

In addition, the isolation tab 42c of the functional unit 42 of illustrated example is in formation position, formation scope, the size of functional unit 42 above-below directions, forms that to control sheet 42b identical with pin.Therefore, isolation tab 42c can not impact lifting (up and down) scope of lifting unit 43 with respect to the rear wall parts 24f of outer mounted box 24.

It is identical or slightly large with the wall thickness of the rear wall parts 24f of outer mounted box 24 that operating sheet 42a in the lifting unit 43 and distance between the backing pin 41 are set as, rocking or this is rocked and suppress for less with the particularly device fore-and-aft direction (Fig. 8 C left and right directions) of eliminating backing pin 41 upper ends.

Shown in Fig. 2, Fig. 8 A～C, in the optical fiber cutter 10 of original state, the lower end of backing pin 41 is arranged on the falling-threshold position with the base plate 24a upper surface butt of the outer mounted box 24 of apparatus main body 20.In addition, the upper end of backing pin 41 from the pin insertion hole 24r(of the top plate portion 24c that is formed at outer mounted box 24 with reference to Fig. 8 C) by and outwards mounted box 24 is outstanding.As mentioned above, optical fiber is pressed the open position restriction protrusion 32e of section of pressure arm 32 base end parts, from the outstanding upper end butt of the outside mounted box 24 of rear side and backing pin 41.

In addition, the pin of functional unit 42 is controlled the bottom of guiding fenestra 24p of rear wall parts 24f that sheet 42b is disposed at the outer mounted box 24 of apparatus main body 20.

As shown in Figure 2, press the base end part of pressure arm 32 at optical fiber, except the above-mentioned open position restriction protrusion 32e of section, also be formed with pin bearing surface 32f by the notch 32g that is formed at base end part, thereby this pin bearing surface 32f and backing pin 41 upper end butt limit fibre are rotated to opening direction by pressure arm 32.As shown in figure 11, optical fiber makes pin bearing surface 32f limit to the rotation of opening direction from rear side and backing pin 41 upper end butts by pressure arm 32, thereby can keep the optical fiber press section 32b of leading section with respect to the state of optical fiber mounting table 27 closures of apparatus main body 20.

Be formed with flexure plane 32i between optical fiber is by the open position restriction protrusion 32e of section of the base end part of pressure arm 32 and pin bearing surface 32f, this flexure plane 32i is to connect the bending radius that has regulation centered by the central axis (consistent with the central axis of pivot 11) by the shaft insertion hole 32h of pressure arm main body 32a base end part.The open position restriction protrusion 32e of section is the jut outstanding from flexure plane 32i to radial outside.Pin bearing surface 32f is the cascaded surface that extends from flexure plane 32i to radially inner side.

As shown in figure 11, in order to make optical fiber by pin bearing surface 32f and the backing pin 41 upper end butts of pressure arm 32 base end parts, so that notch 32g be positioned at backing pin 41 directly over state, make operating sheet 42a rise to the rising extreme position with respect to the outer mounted box 24 of apparatus main body 20, and make backing pin 41 upper ends enter notch 32g.

At this moment, backing pin 41 upper ends are at notch 32g and second the 32j butt of notch that forms perpendicular to pin bearing surface 32f.Yet, for optical fiber cutter, the upper end that also can adopt the backing pin 41 that rises to the rising extreme position not with second 32j butt of notch, but between backing pin 41 upper ends and second 32j of notch, guarantee the structure in gap.

Not with second 32j of notch of the upper end butt of the backing pin 41 that rises to the rising extreme position, get final product can avoid mode with backing pin 41 upper end butts to form, and can form suitable shape and do not need vertical with pin bearing surface 32f.

For the cut-out of using 10 pairs of optical fiber of optical fiber cutter 1 to carry out, at first as shown in Figure 1 and Figure 2, the structure of fiber_optic 2 of controlling and be fixed with optical fiber 1 is accommodated in the support accommodating groove 24j of the 24g of holder stage section of apparatus main body 20, and loads the 24g in holder stage section.Then, optical fiber 1 is loaded on a pair of optical fiber mounting table 27 of apparatus main body 20 from structure of fiber_optic 2 outstanding parts.

The illustrative structure of fiber_optic 2 of Fig. 1 has at substrate 2a and can openedly and closedly be articulated in controls between the cover plate 2b on the substrate 2a and the structure of fixed fiber 1.Cover plate 2b is for example made by metal that can magnetic attraction, utilizes the magnetic attracting force of the magnet (permanent magnet) that is arranged at substrate 2a, optical fiber 1 is pressed into substrate 2a controls fixing.

As optical fiber 1, coated fibers such as the optical fibre core that adopts single core, optical fiber wire rod.

Next, as shown in Figure 3, wait the mobile unit 23 of front side (Fig. 3 left side) the pressing belt blade insert from apparatus main body 20 that it is moved from initial position with finger, thus, the mobile unit 23 with blade insert is pressed into respect to outer mounted box 24 and it is disposed at the cut-out ready position.

Thus, knife rest moves with spring 25 and is stretched.In addition, the engaging pawl 26b of knife rest latch for printed circuit 26 enter with the front side of the engaging teat 22d of the knife rest 22 of the mobile unit 23 of blade insert (Fig. 3 left side) and with engage teat 22d engaging, overcome knife rest with the mobile unit 23 of blade insert and move with the elastic acting force of spring 25 and locked at the cut-out ready position.

For optical fiber cutter 10, with the knife rest 22 of apparatus main body 20 from from outer mounted box 24 laterally (front side) outstanding initial position be pressed into the cut-out ready position, thereby can make knife rest 22 and knife rest latch for printed circuit 26(knife rest fastener) lock, wherein, the above-mentioned cut-out ready position front end that is knife rest is from outer mounted box 24 position of (front side) outstanding outstanding size less than initial position laterally.Therefore, can be easily and successfully carry out knife rest 22 with respect to the outer mounted box 24 of apparatus main body 20 and to the operation of cutting off ready position and being pressed into, and can improve operability.Even move in the more intense situation of elastic acting force with spring 25 at knife rest, also can be easily and successfully carry out knife rest 22 from initial position to the operation of cutting off ready position and being pressed into.

Next, such as Fig. 4～shown in Figure 6, will press handle 30 and press (depressing) and it is rotated to closing direction to apparatus main body 20.

Specifically, press depressing of the 31a of backboard section that depressing of handle 30 refer to handle main body 31.

In addition, when optical fiber cutter 10 was in original state, when namely being in the state of Fig. 2, the backing pin 41 of opening limiting mechanism 40 was in the falling-threshold position.At this moment, the upper end of backing pin 41 is configured to, and by the flexure plane 32i butt of pressure arm main body 32a base end part or via gap slightly and leave.Because the notch 32g by pressure arm main body 32a base end part is in the position of departing from from backing pin 41 tops, so can't make backing pin 41 enter notch 32g.

Utilization is pressed depressing of handle 30 and is to carry out under backing pin 41 is in the state of falling-threshold position to the rotation of closing direction.

If utilize and to press depressing of handle 30 and begin to the rotation of closing direction, then as shown in Figure 4, optical fiber is pressed optical fiber 1 butt on the optical fiber mounting table 27 of the optical fiber press section 32b of pressure arm 32 leading sections and apparatus main body 20.Consequently because 34 that act on by pressing spring via optical fiber, from the pressing force of handle main body 31, optical fiber 1 is crushed on optical fiber mounting table 27.

Simultaneously, prominent wall 22f upper surface, the location of the protruding end of the alignment tabs 33c of occipitalia arm 33 (lower end) and knife rest 22 butt, and 35 that act on via the occipitalia spring, from the pressing force of the handle main body 31 prominent wall 22f in the location that is pressed.

Then, press handle 30 to the rotation continuation of closing direction, optical fiber is pressed pressing spring 34 generation elastic deformations (being compression deformation in the situation of compression helical spring) thus.Consequently, optical fiber is pressed in optical fiber mounting table 27 by the optical fiber press section 32b of pressure arm 32 leading sections securely with optical fiber 1.

Simultaneously, occipitalia spring 35 also carries out elastic deformation (being compression deformation in the situation of compression helical spring), thereby the protruding end of the alignment tabs 33c of occipitalia arm 33 (lower end) is pressed in the prominent wall 22f upper end face in the location of knife rest 22.Consequently, be arranged at the occipitalia 33b of the leading section downside of occipitalia arm main body 33a, can be positioned accurately the position that contacts with part optical fiber 1, between a pair of optical fiber mounting table 27 on a pair of optical fiber mounting table 27 that is arranged at apparatus main body 20 with erected state from the top of a pair of optical fiber mounting table 27.

Next, press handle 30 to the rotation continuation of closing direction.Consequently, as shown in Figure 5, tab 31g(locking releasing section is removed in the locking that is arranged at highlightedly the 31a of backboard section of handle main body 31), the rear side of the knife rest latch for printed circuit 26 of press device main body 20 extends teat 26d downwards, removes the locking of being carried out with the mobile unit 23 of blade insert by 26 pairs of knife rest latch for printed circuit.

Lock to remove tab 31g outstanding to the direction relative with apparatus main body 20 from the 31a of backboard section of handle main body 31.Lock to remove tab 31g since handle main body 31 to the rotation of closing direction, and from the tab of the top plate portion 24c of the cap assembly 24b that is formed at outer mounted box 24 with fenestra 24o(Fig. 1) insert outside in the mounted box 24.

Utilize to lock and remove the rear side extension teat 26d that tab 31g depresses knife rest latch for printed circuit 26, make the engaging pawl 26b of knife rest latch for printed circuit 26 front ends to the engaging teat 22d movement closer to the top than knife rest 22, thereby realize removing the locking releasing of tab 31g to carrying out with the mobile unit 23 of blade insert by locking.

If remove the locking of being undertaken by knife rest latch for printed circuit 26, then the mobile unit 23 with blade insert moves to initial position from cutting off ready position owing to knife rest moves with the elastic acting force of spring 25.In mobile way, blade insert 21 forms the initial scuffing of cutting off usefulness at the downside of the glass fibre part of optical fiber 1.

In addition, optical fiber reaches the limit of by the elastic deformation of pressing spring 34, and further depressing of handle main body 31 is limited, and handle main body 31 reaches to the rotation of closing direction depresses the limit, thereby finishes to rotate.

Optical fiber cutter 10 constitutes, and when utilize to lock removing tab 31g and will remove with the locking of the mobile unit 23 of blade insert or after removing, handle main body 31 is reached depress the limit.

Because the prominent wall 22f in the location of knife rest 22 and knife rest 22 be outstanding the setting integratedly, so be accompanied by with the mobile unit 23 of blade insert from cutting off ready position to the movement of the initial position (movement on the left of Fig. 5.Advance), advance with knife rest 22.

Because the releasing to the locking of cutting off ready position, to initial position move with the blade insert 21 of the mobile unit 23 of blade insert after optical fiber 1 forms initial the scuffing, the rear end (end on Fig. 5 right side) of prominent wall 22f upper surface, the location of knife rest 22 is than the protruding end (lower end) of the alignment tabs 33c of occipitalia arm 33 side shifting more forward.Thus, as shown in Figure 6, the alignment tabs 33c of occipitalia arm 33 is depressed downwards from locating prominent wall 22f rear end owing to the elastic acting force of occipitalia spring 35.Consequently, occipitalia 33b is because the elastic acting force of occipitalia spring 35 and outwards being depressed between a pair of optical fiber mounting table 27 of mounted box 24, thereby the optical fiber 1 that is set up between a pair of optical fiber mounting table 27 is bent downwards from the top, rives and is cut off.

Thus, the cut-out of optical fiber 1 finishes.

In addition, the prominent wall 22f in the location of the knife rest 22 of illustrated optical fiber cutter 10 is outstanding to top plate portion 24c from the slotted hole 24m of the top plate portion 24c of outer mounted box 24.

Be accompanied by the front of knife rest 22 so from the rear end, upper surface of locating prominent wall 22f the alignment tabs 33c of mobile occipitalia arm 33 downwards, enter the slotted hole 24m of the top plate portion 24c of outer mounted box 24.

Figure 12 A, B are the figure that the method that optical fiber cutter 10 is accommodated in receiver is described, and Figure 13 is the figure that expression is received into optical fiber cutter 10 in the built-in box 50 of optical fiber cutter of receiver 51.

Receiver 51 shown in Figure 13 is containers of splitting structure, has the hypocraterimorphous box main body 52 of the apparatus main body 20 that can take in optical fiber cutter 10 and the hypocraterimorphous cover 53 that can open and close with respect to box main body 52.Cover 53 can dismounting with respect to box main body 52.Receiver 51 makes cover 53 form as one with box main body 52 closures, roughly is tabular thereby be assembled into outward appearance.Make cover 53 and box main body 52 closures assemble receiver 51, optical fiber cutter 10 can be accommodated in the receiver 51 thus.In addition, in illustrated receiver 51, box main body 52 is taken in the apparatus main body 20 of optical fiber cutter 10, and cover 53 is taken in and pressed handle 30.

It is the handle portion 55 that tabular box section 54 gives prominence to that the receiver 51 that is assembled into has from outward appearance, therefore can easily carry.

In addition, as receiver 51, the structure that also can adopt cover 53 can openedly and closedly install via the articulated section with respect to box main body 52.

Illustrated receiver 51 is not only box section 54, and the integral body that comprises handle portion 55 is the structure of splitting in the thickness direction central portion switching of receiver 51.

The box main body 52 of receiver 51 and cover 53 are respectively plastic one-body molded product.Box main body 52 and cover 53 are given prominence to the structure that is provided with

handle portion halfbody

52b, 53b integratedly at the halfbody 52a of box section, 53a respectively.

In addition, as receiver, also can be only has handle portion a side of box main body and cover.

Here, as the method that optical fiber cutter 10 is accommodated in receiver 51, the step (accommodation method) that the optical fiber cutter 10 of original state is accommodated in receiver 51 is described.

At first, as shown in Figure 3, (Fig. 3 left side) presses the knife rest 22 of the optical fiber cutter 10 of original state from apparatus main body 20 front sides, it moved to cutting off ready position from initial position, and utilize knife rest latch for printed circuit 26 to be limited to the cut-out ready position with the mobile unit 23 of blade insert.

Then, depress handle main body 31, make optical fiber by optical fiber mounting table 27 closures of optical fiber press section 32b and the apparatus main body 20 of pressure arm 32.

Yet the depressing of handle main body 31 carried out in the mode of not removing the locking of being carried out with the mobile unit 23 of blade insert by 26 pairs of knife rest latch for printed circuit.

To being limited to the mobile unit 23 of blade insert the knife rest latch for printed circuit 26 that cuts off ready position, the effect knife rest moves with the elastic acting force of spring 25 and the elastic acting force of latch for printed circuit spring 26f.Therefore, extend the front state of beginning of depressing that teat 26d carries out from the rear side of being removed tab 31g cutter setting frame latch for printed circuit 26 by the locking of handle main body 31, to beginning to depress rear side when extending teat 26d, the needed pressing force of depressing of handle main body 31 increases.

In the situation that the operator presses the handle main body 31 of the optical fiber cutter 10 of original state with finger, when the rear side of protruding end (lower end) that tab 31g is removed in the locking of handle main body 31 and knife rest latch for printed circuit 26 extends teat 26d butt, can perceive the impulsive force to finger.Therefore, the operator or before perception is impacted, can stop to depress of handle main body 31 when perceiving this impulsive force.Thus, can make optical fiber cutter 10 become following state: to make optical fiber by optical fiber mounting table 27 closures of optical fiber press section 32b and the apparatus main body 20 of pressure arm 32, and do not remove the locking of being carried out with the mobile unit 23 of blade insert by 26 pairs of knife rest latch for printed circuit.

As shown in Figure 4, make optical fiber by optical fiber mounting table 27 closures of the optical fiber press section 32b of pressure arm 32 and apparatus main body 20 and do not remove the state of the locking of being carried out with the mobile unit 23 of blade insert by 26 pairs of knife rest latch for printed circuit by being made as, thereby the notch 32g by pressure arm main body 32a base end part can be disposed at the top of the backing pin 41 of apparatus main body 20 rearward end.

Next, as shown in figure 11, for example with the operating sheet 42a of finger with the functional unit 42 of apparatus main body 20 rearward end (end on Figure 11 right side), be disposed at the rising extreme position thereby be moved upward operation from the falling-threshold position.Thus, the notch 32g that presses pressure arm main body 32a base end part can be inserted in the upper end of backing pin 41.Operating sheet 42a is disposed at the rising extreme position, thus can limit fibre by pressure arm 32 from rotating to opening direction by the pin bearing surface 32f of pressure arm main body 32a base end part and the position of backing pin 41 upper end butts.Consequently, can also limit and press handle 30 integral body and rotate to opening direction with respect to apparatus main body 20.

If operating sheet 42a is disposed at the EO of rising extreme position, then shown in Figure 12 A, at the base plate 52c mounting optical fiber cutter 10 of the halfbody 52a of box section of the box main body 52 that has taken off cover 53, and apparatus main body 20 is accommodated in the halfbody 52a of box section.For box main body 52, base plate 52c is loaded in for example operator's console first-class, make the top of box main body 52 become the state of opening.

Such as Figure 12 A, shown in Figure 13, be formed with surrounding wall 52d from from base plate 52c outer circumference portion to the side-prominent sprag fashion of the single face of base plate 52c at the halfbody 52a of box section of box main body 52.Surrounding wall 52d gives prominence to setting with spreading all over base plate 52c peripheral part complete cycle.

In addition, the zone of inboard on the base plate 52c of the halfbody 52a of box section of box main body 52, that impaled by surrounding wall 52d, many places are provided with location floor 52e highlightedly, this location floor 52e and outer mounted box 24 butts that are positioned in the apparatus main body 20 of the optical fiber cutter 10 on the base plate 52c, the assigned position on base plate 52c is roughly located apparatus main body 20 thus.

The apparatus main body 20 of optical fiber cutter 10 is accommodated in the zone of taking in of the inboard that impaled by above-mentioned location floor 52e, thereby is loaded on the base plate 52c of box main body 52.In optical fiber cutter 10, make apparatus main body 20 outer mounted box 24 base plate 24a, with inboard opposite outside surface that is the 24q(device bottom surface, bottom surface of outer mounted box 24) relatively load in base plate 52c with the base plate 52c of box main body 52.

Figure 12 A, Figure 12 B are the vertical views that expression loads optical fiber cutter 10 to the box main body 52 on the base plate 52c.

Shown in Figure 12 A, Figure 12 B, box main body 52 has following structure.That is, the part 52f that extends as the part of surrounding wall 52d and when overlooking linearlyly, with location floor (in the figure mark 52g parallel with part 52f that form in a plurality of location floor 52e.Below be also referred to as the pressurized floor) between, the apparatus main body 20 of optical fiber cutter 10 is configured and it is taken in the part 52f mode consistent with septal direction between the pressurized floor 52g with its fore-and-aft direction.More particularly, in box main body 52, make the front side (downside of Figure 12 A, Figure 12 B) of the apparatus main body 20 of optical fiber cutter 10 relative with part 52f, and make the rear end of apparatus main body 20 relative with pressurized floor 52g, the accommodation device main body 20 in this way.

Shown in Figure 12 A, the distance L of leaving between part 52f and the pressurized floor 52g is of a size of, size than the fore-and-aft direction (above-below direction of Figure 12 A, Figure 12 B) of the apparatus main body 20 that is configured in the optical fiber cutter 10 under the state that cuts off ready position with the mobile unit 23 of blade insert is slightly large, and the size of the fore-and-aft direction of the apparatus main body 20 than will be configured to original state with the mobile unit 23 of blade insert the time is slightly little.

Therefore, when the apparatus main body 20 with optical fiber cutter 10 is received into box main body 52, between part 52f and pressurized floor 52g, produce permission apparatus main body 20 to the clearance delta t of the size of rocking of the septal direction of part 52f and pressurized floor 52g.

Apparatus main body 20 is disposed between part 52f and the pressurized floor 52g it is accommodated in box main body 52 after, the handle main body 31 of pressing handle 30 is depressed operation, make that to be in the knife rest 22 with the mobile unit 23 of blade insert that cuts off ready position outstanding to initial position.Thus, utilize knife rest to move the elastic acting force of using spring 25, make knife rest 22 front ends and the part 52f butt of the apparatus main body 20 of optical fiber cutter 10, and make apparatus main body 20 rear ends and pressurized floor 52g butt.Consequently, the apparatus main body 20 that becomes optical fiber cutter 10 is held in state between part 52f and the pressurized floor 52g (below, be also referred to as hold mode between the box wall).

Because produce outstanding removed in the locking of knife rest 22, the vibration that produces in the time of can be according to the visualization that utilizes the gap to carry out and/or knife rest 22 front ends and part 52f butt is confirmed.

The part 52f of box main body 52 and pressurized floor 52g move with the pressurized wall of the elastic acting force of spring 25 and bring into play function as bearing knife rest.

Below, also part 52f is called front side pressurized wall, pressurized floor 52g is called rear side pressurized wall.

If optical fiber cutter 10 remains between the box wall, then next, make cover 53 and box main body 52 integrated, and assembling receiver 51.

Thus, finish optical fiber cutter 10 and take in the built-in box 50 of assembling optical fiber cutter in the receiver 51.

The optical fiber cutter 10 that becomes hold mode between the box wall is contained specifically box main body 52 of box 51() stably be supported for, be not easy displacement with respect to box main body 52.Therefore, the built-in box 50 of optical fiber cutter can be eliminated optical fiber cutter 10 rocking and can prevent that direction beyond the septal direction of front side pressurized wall 52f and rear side pressurized wall 52g from producing and rock in the septal direction of front side pressurized wall 52f and rear side pressurized wall 52g.

Optical fiber cutter 10 is being accommodated in the operation of receiver 51, after the state that is in the cut-out ready position with the mobile unit 23 with blade insert is accommodated in box main body 52 with apparatus main body 20, only outstanding to initial position by utilizing depressing of handle main body 31 to make with the mobile unit 23 of blade insert, just can form the state that simply optical fiber cutter 10 is remained between the box wall.Remain in optical fiber cutter 10 between the box wall owing to knife rest moves between pressurized wall 52f, the 52g that elastic acting force with spring 25 is held in the position that being in of receiver 51 leave mutually.Therefore, can eliminate optical fiber cutter 10 rocking in receiver 51 simple and reliablely.

Between the location floor 52e of Width (left and right directions among Figure 12 A, Figure 12 B, Figure 13) both sides of apparatus main body 20 and apparatus main body 20, exist in the situation in gap, when the built-in box 50 of optical fiber cutter was acted on the more intense external force such as vibration, apparatus main body 20 may produce displacement between the floor 52e of the location of Width both sides.

Yet, be maintained between front side pressurized wall 52f and the rear side pressurized wall 52g owing to remaining in the optical fiber cutter 10 of the state between the box wall, so can suppress the displacement of optical fiber cutter 10 between the floor 52e of the location of Width both sides.In addition, owing to can stop the rapid displacement that produces because of external force, thus can prevent collision with receiver 51, and can prevent reliably position skew, the distortion of the parts that produce because of collision.

Therefore, the built-in box 50 of optical fiber cutter can guarantee stably that 10 pairs of optical fiber of optical fiber cutter form the precision that scratches, the precision of cut-out.

In receiver 51, take out from receiver 51 for the optical fiber cutter 10 that will remain between the box wall, then can be after cover 53 be opened with respect to box main body 52, by optical fiber cutter 10 is pulled out and carries out simply from box main body 52.

Especially, the front side of apparatus main body 20 (downside of Figure 12 A, Figure 12 B) is the structure of only having with mobile unit 23 front ends and pressurized wall (the front side pressurized wall 52f) butt of blade insert.Therefore, little with the contact area of front side pressurized wall 52f, institute so that knife rest 22 front ends slide along the pressurized wall, thereby can stablize and take out simply box main body 52.

Above, according to preferred embodiment the utility model being illustrated, but that the utility model is not limited to is preferred embodiment above-mentioned, can carry out various changes in the scope that does not break away from aim of the present utility model.

For example, be not limited to knife rest from the outer mounted box position of the side-prominent outstanding size less than initial position forward with the cut-out ready position of the mobile unit of blade insert, also can be the knife rest front end with outer mounted box front surface be positioned on the same surface substantially or the position of departing from by rear side than outer mounted box front surface.

As optical fiber cutter, be not limited to and use draft helical spring to be used as the structure that knife rest moves the usefulness spring.Optical fiber cutter also can be to use compression helical spring to be used as knife rest to move the structure of using spring.In the structure of having used compression helical spring, mobile unit with blade insert is moved to cutting off ready position from initial position, thereby make compression helical spring generation compression deformation, carry out to the elastic acting force that moves through compression helical spring of initial position from cutting off ready position with the mobile unit of blade insert.

Claims

1. an optical fiber cutter is characterized in that,

Possess:

Outer mounted box, this outer mounted box has top plate portion and outside surface;

Apparatus main body, this apparatus main body are arranged in the above-mentioned outer mounted box, and have the optical fiber mounting table, the knife rest that are arranged at above-mentioned top plate portion and support optical fiber and move with spring and knife rest fastener; And

With the mobile unit of blade insert, this mobile unit with blade insert is arranged at the said apparatus main body, and has knife rest and blade insert, and this blade insert is installed on above-mentioned knife rest and partly forms scuffing at the glass fibre of above-mentioned optical fiber,

Can move to cutting off ready position from initial position by the push operation of carrying out from the outside of above-mentioned outer mounted box with the mobile unit of blade insert, above-mentioned initial position be with the mobile unit of blade insert from above-mentioned outer mounted box outstanding position laterally,

Above-mentioned knife rest fastener locks above-mentioned knife rest at above-mentioned cut-out ready position, and removes the locking that above-mentioned knife rest is removed in operation by locking,

Thereby above-mentioned knife rest moves with spring and to the above-mentioned knife rest application of force that is disposed at above-mentioned cut-out ready position it is moved to above-mentioned initial position,

The elastic acting force that the said apparatus main body utilizes above-mentioned knife rest to move with spring makes above-mentioned knife rest move to initial position from cutting off ready position, scratches thereby utilize above-mentioned blade insert to form at the above-mentioned optical fiber that is supported on above-mentioned optical fiber mounting table,

Above-mentioned knife rest can not be pressed into to above-mentioned cut-out ready position from above-mentioned initial position from the outstanding mode of the above-mentioned outside surface of above-mentioned outer mounted box with the front end of this knife rest, or above-mentioned knife rest can be pressed into to above-mentioned cut-out ready position from above-mentioned initial position in the outstanding size of the front end of the above-mentioned knife rest that is in above-mentioned cut-out ready position and the above-mentioned outside surface of the above-mentioned outer mounted box mode less than the outstanding size of the above-mentioned outside surface of the front end of the above-mentioned knife rest that is in above-mentioned initial position and above-mentioned outer mounted box.

2. optical fiber cutter according to claim 1 is characterized in that,

Also possess:

Press handle, this is pressed handle and has optical fiber by pressure arm and handle main body, wherein, optical fiber is provided with the optical fiber press section by pressure arm highlightedly at leading section, handle main body is configured to leave to the rear side opposite with the said apparatus main body by pressure arm from above-mentioned optical fiber, and can be opened and closed to be articulated in the said apparatus main body, and be formed with the locking releasing section that above-mentioned knife rest fastener is locked the releasing operation;

Open and use spring, this is opened with spring above-mentioned optical fiber is carried out elastic force-applying by pressure arm to the direction of opening with respect to the said apparatus main body; And

Open limiting mechanism, this is opened limiting mechanism and is formed at the position that is articulated in said apparatus main body place near above-mentioned optical fiber by pressure arm,

Above-mentioned optical fiber press section can be by above-mentioned handle main body with respect to the shutoff operation of said apparatus main body and closed with respect to the optical fiber mounting table of said apparatus main body,

Above-mentioned locking releasing section closes the shutoff operation that carries out by above-mentioned optical fiber press section and above-mentioned knife rest fastener is locked and removes operation under the state of above-mentioned optical fiber mounting table,

Above-mentioned optical fiber forms to stand facing each other along this handle main body from above-mentioned handle main body via spring by pressure arm and leaves in the direction of said apparatus main body,

Be with respect to above-mentioned optical fiber mounting table in above-mentioned optical fiber press section and close and above-mentioned knife rest fastener is limited to above-mentioned knife rest under the state of above-mentioned cut-out ready position, the above-mentioned limiting mechanism of opening can switch above-mentioned optical fiber is opened the rotation of direction by pressure arm court restriction and license

Towards the rotation of opening direction, under the above-mentioned state of opening the limiting mechanism restriction, can rotate to closing direction by above-mentioned handle main body by pressure arm for the above-mentioned optical fiber that is the state of closing in above-mentioned optical fiber press section with respect to above-mentioned optical fiber mounting table.

3. optical fiber cutter according to claim 2 is characterized in that,

The said apparatus main body has a pair of optical fiber mounting table, and this a pair of optical fiber mounting table is across the movement of following above-mentioned knife rest and the movable area of mobile above-mentioned blade insert and be disposed at the both sides of this movable area,

The above-mentioned handle of pressing has occipitalia,

By pressing loading in the mode of setting up in part optical fiber, that load between above-mentioned a pair of optical fiber mounting table of above-mentioned a pair of optical fiber mounting table, above-mentioned occipitalia makes by riving by above-mentioned blade insert and has formed the fibercuts that scratches,

By above-mentioned handle main body is rotated to closing direction from the open position for the said apparatus main body, above-mentioned occipitalia form via spring from above-mentioned handle main body along the said apparatus main body and the direction of above-mentioned occipitalia face-off leave.

4. built-in box of optical fiber cutter, it takes in optical fiber cutter claimed in claim 1, it is characterized in that,

Possess:

Receiver; And

Be arranged in the above-mentioned receiver and be formed at the pressurized wall of the position of mutually leaving,

Above-mentioned optical fiber cutter is disposed between the above-mentioned pressurized wall,

Utilize above-mentioned knife rest to move the elastic acting force of using spring, make the outside from from above-mentioned cut-out ready position to above-mentioned exterior box outstanding with the front end of the mobile unit of blade insert and the rearward end of said apparatus main body, respectively with above-mentioned pressurized wall butt, thereby above-mentioned optical fiber cutter is remained between the above-mentioned pressurized wall.

5. built-in box of optical fiber cutter, it takes in claim 2 or 3 described optical fiber cutters, it is characterized in that,

Possess: receiver; And

Utilize above-mentioned knife rest to move the elastic acting force of using spring, make the outside from from above-mentioned cut-out ready position to above-mentioned exterior box outstanding with the front end of the mobile unit of blade insert and the rearward end of said apparatus main body, respectively with above-mentioned pressurized wall butt, thereby above-mentioned optical fiber cutter is remained between the above-mentioned pressurized wall

Utilize the above-mentioned limiting mechanism of opening, restriction is in the above-mentioned optical fiber press section of above-mentioned off-position and moves towards the departure direction for above-mentioned optical fiber mounting table.

6. the built-in box of optical fiber cutter according to claim 4 is characterized in that,

The cover that above-mentioned receiver has box main body and can open and close with respect to above-mentioned box main body,

Above-mentioned optical fiber cutter is with the state of the base plate face-off of the above-mentioned box main body of the bottom surface of above-mentioned apparatus main body and above-mentioned receiver, is disposed between the outstanding above-mentioned pressurized wall that arranges in the position of mutually leaving of the single face side of the above-mentioned base plate of above-mentioned box main body.

7. the built-in box of optical fiber cutter according to claim 5 is characterized in that,