JP4862982B2 - Wire cutting tool - Google Patents

Description

  The present invention relates to a wire cutting tool used when cutting wires such as overhead cables and optical fiber slot rods.

  As shown in FIG. 8, for example, when an optical fiber is newly drawn from a communication optical fiber cable 100 installed between utility poles P to a terminal of each home H or the like, A closure 101 is attached for branching, connecting, switching, accommodating and the like of the optical cable. For example, as shown in FIG. 9, the aerial optical fiber cable 100 has a support wire portion 102 having a steel wire 103 at the center and a cable portion 104 having an optical fiber core wire 108 integrated with each other via a neck portion 106. Is provided. In the cable portion 104, a plurality of spiral grooves 111 are formed on the outer peripheral side of the slot rod 110 made of an elastic material, and a tape-shaped optical fiber core 108 is spirally wound around the grooves. It is arranged and the outer periphery thereof is covered with a jacket 114 to be protected. Further, a tension member 112 made of a steel wire or the like serving as a cable core is disposed at the center of the slot rod 110.

  As shown in FIG. 10, in the operation of attaching the closure to the aerial optical fiber cable 100, the neck portion at the attachment position is cut to separate the support wire portion 102 and the cable portion 104, and there is no tension on the optical fiber core wire. The optical fiber cable is drawn from both the left and right sides to bend toward the attachment center position so that the extra length can be obtained. The slot rod 110 is exposed by peeling off the outer cover of the cable portion of the slack portion corresponding to the portion to which the closure is attached. Then, in a state where the slot rod is bent, the optical fiber core wire 108 is detached from the slot of the slot rod corresponding to the part where the jacket is peeled off, and the slot rod 110 is cut with a cutting tool such as a clipper, for example. . Then, after the slot rod is cut, the optical fiber core wire is wired and stored in the closure.

In the above process, in the process of cutting the slot rod, the slot rod in the bent state immediately after cutting the slot rod with a clipper or the like rebounds strongly due to the cutting and separation, and damages the optical fiber core arranged nearby. There was a risk of cutting. Further, the cutting tool itself may touch and damage the optical fiber core wire. In addition, there is a possibility that the optical fiber core wire may be caught in the operator's hand or sleeve, etc. and unexpectedly enter between the cutting blades of the cutting tool and be cut as it is. If any part of the optical fiber cable is damaged, it cannot be used. Therefore, a new cable is required, and a great loss occurs in the cost, labor, time, etc. required for laying the cable. In addition, when another operator grips both sides of the cutting position of the optical fiber cable with both hands in order to prevent the slot rod from bouncing after cutting, the cutting operation is complicated and inefficient because two workers are required. It was a thing.

On the other hand, Patent Document 1 discloses a cable cutter used for cutting a cable such as an electric wire or a telephone line. The cable cutter of patent document 1 has the fixed blade part 4 and the movable blade part 6 which were attached to the axis | shaft, mesh | engaged the drive gear 11 and the fan-shaped gear 12 provided in the movable blade part 6, and has an operating rod with a handle. The drive gear is driven via 16 to open and close the movable blade portion 6 with respect to the fixed blade portion 4. Further, each of the fixed blade portion 4 and the movable blade portion 6 is provided with a spring-type gripping member 15, and when the movable blade portion is fully closed, the spring-type gripping members 15 face each other and hold each other. It was intended to restrict the rotation and prevent the drive gear and the sector gear from coming off. Further, the spring-type gripping member grips the wire when cutting the wire, and tries to prevent the cut wire from falling after the cutting of the wire is completed. When the slot rod from which the optical fiber core wire is detached as shown in FIG. 10 is cut using the cable cutter of Patent Document 1, the fixed blade portion and the movable blade portion are avoided while avoiding the optical fiber core wire. A slot rod is placed between the two. Then, while finely adjusting the slot rod so as to be positioned at the center of gripping of the spring-type gripping member, the handle is operated with both hands to close both the blade and the spring-type gripping member to cut the slot rod.
JP 2002-160119 A (specifications [0046] to [0052], FIGS. 3 to 5)

  However, the cutting operation of the slot rod 110 as shown in FIG. 10 is an operation on an unstable bucket or the like at a high place, and the aerial optical fiber cable itself is also unstable. In addition, the adjustment of the gripping position and the like is complicated, takes time, and is inferior in reliability. That is, in Patent Document 1, it is difficult to reliably hold the slot rod with the spring holding member, and there is a high possibility that the optical fiber core wire will be damaged or disconnected due to rebound immediately after cutting the slot rod. It was. Furthermore, there is a possibility that the cable cutter touches and damages the optical fiber core, or the optical fiber core wire enters between the blades unexpectedly and is cut as it is. As mentioned above, if any part of the optical fiber cable is damaged, it cannot be used, so a new cable is required, and there is a problem that a great loss occurs in the cost, labor, time, etc. for laying the cable. appear. Also, even if one of the cutting end portions of the slot rod can be gripped by the spring-type gripping portion, the other cutting end portion remains free, but the operator operates the cutter with both hands. Other workers are required to grip the slot rod, and the work is complicated and inefficient.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to accurately and safely cut, for example, a line item to be cut such as a slot rod with a single operator. It is to provide a wire cutting tool. Another object of the present invention is to provide a cutting tool set for a line which can protect only the line which is not to be cut and can accurately cut only the line to be cut.

The present invention in order to solve the above problems, a pair of cutting blades 22a to cut the closing to the striatum such the pivot 20 around the longitudinal direction perpendicular of the linear compounds to be cut, the cutting portion 12 having a 22b, the cutting blade 22a is integrally connected to the cutting section 12, an operation unit 14 for opening and closing the 22b, the cutting blade 22a, independently of the pivot 20 around the said pivot 20 and 22b and the common axis opening and closing operation of the operation unit 14 to possess a pair of gripping pieces 28a which are spring-biased in a direction sandwiching the striatum such in cutting position near the striatum such, a gripping portion comprising 28b, the striatum such a pair of holding pieces 28a, 28b When the cutting blades 22a, 22b are closed and cut while being gripped by the center, regardless of the closing operation of the cutting blades 22a, 22b via the operation unit 14, the center position of the cutting gap between both the cutting blades 22a, 22b And the gripping gap between the gripping pieces 28a and 28b Position and is composed of the cutting tool 10 of the linear compounds, characterized in that the cutting operation in a state of being substantially centered. It should be noted that when the filaments are cut, the gripping center of the gripping part and the cutting center by the cutting part may be set at a substantially centered position, for example, during storage, storage, etc. Need not be aligned with each other. The cutting tool can be applied to, for example, cutting optical fiber slot rods, power lines, telephone lines, communication lines, and other various types of wires that are installed in the aerial, ground, and underground. The gripping piece may be urged by a spring member, a leaf spring, or other spring member, for example. The strength of the elastic urging force may be arbitrarily set. For example, the opening operation of the gripping piece can be performed smoothly and the slot rod gripped by the impact during the cutting operation by the cutting blade cannot be removed. It should be set at a certain level of strength.

  Moreover, it is good also as providing the open lever 32 which carries out open operation of either the holding pieces 28a and 28b. As a configuration in which the gripping pieces grip the filaments, they may be opened and closed around the pivot axis. By opening any one of the grip pieces, it is easy to design a centering configuration with the cutting center, and a simple operation with one hand can be realized.

  Furthermore, the present invention consolidates and holds the filament-shaped cutting tool 10 and the other filaments (108) that are not cut so that they can be freely bundled so as not to be affected by the work operation during the cutting work by the cutting tool 10. And a converging protection member 40, and a linear cutting tool set. For example, the convergence protection member may have any other configuration such as a band-like body wound around other filaments or a cylindrical body made of a hard material. For example, the convergence protection member is convenient to carry if it is configured to be detachable from the operation portion of the cutting tool. For example, the convergence protection member may be formed in a band shape, wound around the operation unit, and stored or carried.

  The wire cutting tool of the present invention includes a main body including a cutting part, an operation part that is integrally connected to the cutting part and operates to cut the cutting part, and is provided integrally with the cutting part. A gripping part that is in the vicinity of the cutting position of the filaments regardless of the cutting operation and grips the side-by-side positions of the cutting parts so as to be gripped and detachable. For example, immediately after cutting, the linear part can be cut in a state where the operation part of the main body part that supports the body is gripped with one hand and a part of the linear part to be cut is held with the other hand. Thus, the wire rods such as the slot rod that has been cut and separated can be securely gripped to prevent rebound, and the other wire rods such as the optical fiber core wire that is not cut can be well prevented from being damaged or cut. At the same time, one worker can perform cutting work efficiently. Further, since the grip portion can be operated regardless of the cutting operation of the operation portion, it is possible to easily perform the grip operation of the filaments. Furthermore, the cutting operation by the cutting unit can be performed stably, and the cutting operation can be performed reliably and smoothly even in an unstable work site such as a high place. Further, it can be manufactured at a low cost with a simple configuration.

  In addition, since the gripping portion is set to a position where the gripping center is substantially aligned with the cutting center of the cutting portion, fine adjustment of the cutting position is unnecessary, and the reliability and efficiency of the work can be improved. Improve.

  The cutting part is composed of a pair of cutting blades that open and close around the pivot axis, and the gripping part is composed of a pair of gripping pieces that are opened and closed with the pivot axis as a common axis. By adopting such a configuration, the operability of the gripping / removing operation of the filaments by the gripping part is good, and the filaments can be reliably gripped. Moreover, it can hold | grip corresponding to the various different diameter of a filament. Furthermore, the configuration of the gripping part can be specifically realized with a simple and low-cost structure.

  In addition, by adopting a configuration in which an open lever that opens any of the gripping pieces is provided, the gripping part can be gripped and removed by a simple operation with one hand. The workability of cutting work can be improved even in unstable places.

  Furthermore, the present invention provides a convergence protective member for converging and holding the filaments cutting tool and the other filaments that are not cut so as to be bundled open so as not to be affected by the work operation during the cutting operation by the cutting tool. Therefore, the other filaments that are not cut can be bundled and protected to prevent erroneous cutting, and only the filaments to be cut can be reliably cut by the cutting tool. Furthermore, it is not necessary to pay close attention to other filaments that are not cut during the cutting operation, and the cutting operation can be performed smoothly.

  Also, the optical fiber slot rod is cut off by detaching the optical fiber core wire from the slot rod carrying the optical fiber core wire, and cutting the detached portion of the slot rod. Preparing a cutting tool having a gripping part to be attached and a cutting part with an operating part integrally attached thereto, bundling optical fiber core wires around the cutting position with a convergence protection member, and cutting a slot rod For both sides of the position, gripping one side with one hand while gripping the other side with a gripping part integrally attached to the cutting part, and cutting the cutting part with the other hand through the operation part And the slot rod cutting method including the above, so that the slot rod that has been cut and separated immediately after cutting the slot rod is prevented from being rebounded, and the optical fiber core wire is damaged or cut. It is possible to prevent the good. At the same time, one worker can perform cutting work efficiently. Furthermore, the cutting operation by the cutting part can be performed stably, and the cutting operation can be performed reliably and smoothly even at high places. Further, the optical fiber cores can be bundled and protected to prevent erroneous cutting of the optical fiber cores. In addition, since it is not necessary to pay strict attention to the optical fiber core wire during the cutting operation, only the slot rod can be reliably and smoothly cut by the cutting tool.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a wire cutting tool and a slot rod cutting method according to the present invention will be described below with reference to the accompanying drawings. The wire cutting tool of the present invention is applied to, for example, cutting of wire rods such as slot rods for optical fibers, and the connection, wiring and the like of the optical fiber cable shown in FIGS. In this operation, the optical fiber core wire 108 is detached from the slot rod 110 carrying the optical fiber core wire 108, and the slot rod 110 of the detached portion is suitably applied. By gripping both sides of the cutting with the gripping part and the hand when the slot rod is cut, it is possible to satisfactorily prevent the optical fiber core wire from being damaged or cut due to the rebound of the cut and separated slot rod during the cutting operation.

  FIG. 1 to FIG. 7 show an embodiment of the wire cutting tool of the present invention. In the present embodiment, as shown in FIG. 1, a linear cutting tool (hereinafter also simply referred to as a “cutting tool”) 10 includes a main body portion 16 including a cutting portion 12 and an operation portion 14, and cutting. And a grip portion 18 provided integrally with the portion 12. As shown in FIG. 5, the cutting tool 10 according to the present embodiment is provided with the operation unit 14 of the main body 16 that supports the gripping part 18 in a state where a single worker W grips the slot rod 110 with the gripping part 18. The slot rod is cut with the other hand Hd grasping a part of the slot rod to be cut.

  As shown in FIGS. 1 and 3, in this embodiment, the cutting portion 12 has a pair of cutting blades 22a and 22b that open and close around the pivot 20 of the pivoting portion 19, and a slot rod sandwiched therebetween. It is provided so as to sandwich (streaks). The cutting blades 22a and 22b are made of, for example, a metal such as stainless steel or iron, and have a cutting edge 23 on the inner side. The cutting blades 22a and 22b are integrally formed with continuous portions 24a and 24b extending so as to intersect with each other, and the intersecting portions are pivotally supported by a pivot 20 so as to open and close up and down. The operating portion 14 is integrally connected to the continuous portions 24a and 24b.

  The operation unit 14 is an operation unit that is integrally connected to the cutting unit 12 and performs a cutting operation on the cutting unit 12, and in this embodiment, a pair of operation handles 26a and 26b that are integrally connected to the respective cutting blades 22a and 22b. including. In FIG. 1, the operation handles are respectively connected to the connecting portions of the cutting portions, the lower operation handle 26a is integrally connected to the upper cutting blade 22a, and the upper operation handle 26b is connected to the lower cutting blade 22b. They are connected together. That is, in the present embodiment, the main body portion 16 is provided with operation handles 26a and 26b serving as the operation portion 14 on one end side via the pivot 20, and cutting blades 22a and 22b serving as the cutting portion 12 on the other end side. Is provided. In the present embodiment, the operation handles 26a and 26b are made of, for example, a hard metal such as stainless steel or iron, and the grip portion surface is covered with a vinyl resin or the like. The cutting blades 22a and 22b are opened and closed in accordance with the opening and closing operation of the operation handles 26a and 26b around the pivot 20, and the operator can easily cut by holding the operation handles 26a and 26b with one hand. Can be operated.

  In the present embodiment, the gripping portion 18 is provided integrally with the cutting portion 12, and is near the slot rod cutting position (X) regardless of the cutting operation of the operation portion 14 as shown in FIG. 5. The side-by-side position N1 of the cutting unit 12 is gripped so as to be freely detachable. As shown in FIGS. 1, 2, and 4, in the present embodiment, the gripping portion 18 is disposed beside the cutting portion 12 (on the left side in FIG. 2) in close proximity to the cutting portion. The gripping part 18 includes a pair of gripping pieces 28a and 28b that open and close with the pivot 20 of the cutting part 12 as a common axis. In the present embodiment, the gripping pieces 28a and 28b are elastically urged so as to be always attached to each other by a winding spring 38 disposed around the pivot 20 in a winding manner. In this embodiment, the gripping pieces 28a and 28b are made of a metal block body or plate body having a certain degree of strength, and are formed to have a certain length in the longitudinal direction of the slot rod to be gripped. In the present embodiment, the lower grip piece 28 b is provided with an opening lever 32 that opens the grip piece 28 b against the urging force of the winding spring 38. The gripping part 18 is set at a position where the gripping center is substantially aligned with the cutting center by the cutting part 12 (see the gripping centerline 200 in FIG. 2). In the present embodiment, the gripping portion 18 including the gripping pieces 28a and 28b is rotated with the upper cutting blade 22a, the connecting portion 24a, and the operation handle 26a with the pivot 20 as a common axis when opening and closing by the operation handle. It is supposed to be. Further, in the present embodiment, the grip surface of the upper grip piece 28a and the cutting edge of the upper cutting blade 22a are set at a substantially aligned position in front view. Regardless of the opening / closing operation of the cutting blades 22a and 22b around the pivot axis 20, the gripping centers of the gripping pieces 28a and 28b and the cutting center of the cutting blade are almost aligned. The gripping pieces 28a and 28b can swing around the pivot axis 20 with respect to the cutting blade 22a. When the cutting rod 12 cuts the slot rod by the cutting portion 12, the cutting edge 23 of the cutting blade 22a is the gripping surface of the upper gripping piece 28a. It can be more prominent. Furthermore, it is urged | biased by the spring member 34 so that the position with respect to the cutting blade 22a of a holding piece may be hold | maintained. The spring member 34 is made of, for example, a coil spring, and has one end connected to a continuous portion 24a from the upper cutting blade 22a and the other end connected to an extension 35 formed on the upper gripping piece 28a. Yes. In addition, the holding part 18 is good also as a structure which sets the cutting center and holding | grip center position of a cutting part to the centered position by providing in a fixed shape. By holding the slot rod in the gripping portion 18, the cutting portion 12 is hardly displaced from the target cutting position X even in an unstable work place, and the slot rod cutting operation by the cutting portion 12 can be performed reliably and smoothly.

  In FIG. 1, the release lever 32 is integrally fixed to the lower grip piece 28b and extends obliquely upward. By pushing the release lever 32 forward (F) with one hand, the lower gripping piece 28b is opened relative to the upper gripping piece 28a against the winding spring 38 to open the gripping portion. . On the other hand, the upper grip piece 28a is provided with an extension portion 35 obliquely downward and intersecting with the lower grip piece 28b including the release lever. The extension piece 35 protrudes in the lateral direction so as to be locked to the lower surface side of the continuous portion 24a of the cutting blade 22a (see FIG. 2). During the pushing operation of the release lever 32, the upper gripping piece 28a is restricted from rotating together by the restricting piece 36 of the extension, and the positional relationship between the upper gripping piece 28a and the cutting blade 22a is maintained. The opening operation of the holding piece 28b on the side is performed smoothly. The slot rod can be gripped simply by releasing the hand by aligning the position corresponding to the cutting position of the slot rod with the gripping portion 18 opened via the release lever 32. Thus, the slot rod can be easily gripped and removed by the grip portion 18. Further, the gripping pieces 28a and 28b can be elastically opened and closed to grip the slot rods having various diameters. The gripping part 18 prevents the slot rod from bouncing off by holding one of the cut and separated slot rods when the cutting part 12 cuts the slot rod. Prevent damage, cutting, etc. As for the slot rod that has been cut and separated on the other side of the gripping portion, the operation portion 14 can be operated with one hand (for example, the right hand) as described above, so that it can be rebounded by being gripped with an empty one hand (left hand) Hd Can be prevented. That is, the state where both sides of the cutting position X are held by only one worker W and the cutting operation by the operation unit 14 can be performed simultaneously. The opposing inner sides of the gripping pieces 28a and 28b are formed in a substantially concave shape, and an elastic member 30 such as a rubber plate is attached to the contact surface with the slot rod. When the slot rod 110 is gripped, the slot rod 110 is brought into close contact with the slot rod 110 and is prevented from being unexpectedly detached due to an impact or the like generated during the slot rod cutting operation. In the above embodiment, the release lever releases the gripping portion by pushing, but the gripping portion may be opened by pulling the release lever. Alternatively, an opening / closing lever may be attached to each gripping piece, and the opening / closing lever may be opened / closed to open the gripping portion. In addition, the gripping piece may be formed in an arc shape or other arbitrary shape, and may be configured to easily grip other filaments.

  Further, in the present embodiment, as shown in FIG. 5, the convergence protection member 40 that protects the optical fiber core wire 108 is used during the cutting operation by the cutting tool 10 described above. The convergence protection member 40 is a protection means that holds the optical fiber core wire 108 separated from the slot rod so as to converge and open so as not to be affected by the operation during the cutting operation. Thereby, only the slot rod 110 can be reliably cut by the cutting tool 10 in a state where the slot rod and the optical fiber core wire that is not cut are clearly separated, and erroneous cutting of the optical fiber core wire can be prevented. In the present embodiment, the convergence protection member 40 includes a convergence band 44 in which both end sides are connected via connection portions 42 as shown in FIGS. 6 and 7. The converging band 44 is made of, for example, a cloth, leather, non-woven fabric, synthetic resin such as vinyl resin, or other lightweight and flexible material, and is wound in a state where a plurality of optical fiber cores are bundled, and both end sides are wound. Connected in a stacked state. In this embodiment, the connection part 42 consists of the hook-and-loop fasteners 46a and 46b arrange | positioned by turns on both ends of the convergence zone 44, for example, and can perform connection disconnection easily. The connecting portion may be any button, hook, string, or any other device that can be easily attached and detached.

Next, the action of the wire rod cutting tool and the slot rod cutting method according to this embodiment will be described. For example, as shown in FIG. 10, in connection and wiring work at an intermediate position of an aerial optical fiber cable, the slot portion is exposed by bending the cable portion corresponding to the attachment position of the closure, etc., and peeling off the jacket. When the optical fiber core 108 of the portion corresponding to the exposed portion is detached from 110 and the slot rod 110 is cut, first, as shown in FIG. 5, the detachment close to the cutting position of the slot rod is first performed. The optical fiber core wire 108 is bundled with the convergence protection member 40. As a result, the optical fiber core 108 is not easily affected by the work operation at the time of cutting the slot rod by the cutting tool 10, and damage to the optical fiber core by the cutting tool, erroneous cutting, and the like can be satisfactorily prevented. Then, the operation handles 26a and 26b of the cutting tool 10 are opened to bring the cutting part 12 into an open state, and the cutting part side is brought close to the slot rod. The release lever 32 of the grip portion 18 is pressed forward to open the grip piece, and the slot rod is accommodated between the grip pieces 28a and 28b. When the hand is released from the release lever 32, the gripping piece is closed by the spring bias, and a part N1 of the slot rod is gripped. Since the gripping part grips a part of the slot rod and the gripping center of the gripping part and the cutting center of the cutting part are aligned, the cutting part 12 is positioned with respect to the slot rod and delicate position setting. Is no longer necessary. Thereby, the cutting work by the subsequent cutting part can be performed reliably even in an unstable place such as a high place. For example, the operator W grips the operation unit 14 with the right hand, and grips a portion N2 of the opposite slot rod with the left hand (Hd) with the gripping portion and the cutting portion interposed therebetween. In other words, one side (N2) of the cutting position of the slot rod is gripped by one hand Hd, while the other side (N1) is gripped by the gripping part 18 provided integrally with the cutting part 12 of the main body part gripped by the right hand. Accordingly, it is possible to simultaneously realize a state in which only one worker W holds both sides of the cutting position X and a cutting operation by the operation unit of the main body. The position held by the hand may be a position where the operation unit is easily operated at a position close to the cutting part to some extent. Then, the slot of the slot rod is cut by firmly grasping the operation part of the right hand and closing the cutting blade. At this time, one of the slot rods cut and separated (N2) is gripped by the left hand Hd and the other (N1) is gripped by the gripping portion 18 integrated with the cutting portion 12, so that the slot rod It is possible to satisfactorily prevent the optical fiber core wire from being damaged or cut due to rebound. In this way, even one person can perform cutting work efficiently. The hand Hd that grips the slot rod 110 may be gripped at least immediately before cutting. For example, the hand Hd may be gripped before a strong gripping operation when cutting the tension member at the center of the slot rod. After the cutting operation is completed, the convergence protection member is removed and the optical fiber core wire is opened, and the subsequent operation, for example, a closure attaching operation or the like is performed.

  The above-described filament cutting tool of the present invention is not limited to the configuration of the above-described embodiment alone, and can be arbitrarily modified without departing from the essence of the present invention described in the claims. You may go.

  The wire cutting tool of the present invention, for example, removes an optical fiber core wire from a slot rod carrying an optical fiber core wire and cuts the slot rod for the optical fiber that cuts the slot rod of the detached portion. Applicable to Further, the cutting tool can be applied to the cutting of power lines, telephone lines, and other various types of wires.

It is front explanatory drawing of the cutting tool of the filaments concerning embodiment of this invention. It is an AA arrow line view of the cutting tool of the filaments of FIG. It is a rear view of the principal part of the cutting tool of the filaments of FIG. It is action | operation explanatory drawing of the principal part of the cutting tool of the filaments of FIG. It is operation | movement explanatory drawing of a cutting tool and the cutting method. It is a top view of a convergence protection member. It is the front view of a convergence protection member, and its operation explanatory drawing. It is drawing explanatory drawing of the overhead optical fiber cable to the terminal It is a cross-sectional enlarged view of an aerial optical fiber cable. It is explanatory drawing which shows the state which bent the slot rod and removed the optical fiber core wire in the connection of the aerial optical fiber cable, accommodation, a pull-out operation | work, etc.

DESCRIPTION OF SYMBOLS 10 Line | wire cutting tool 12 Cutting part 14 Operation part 16 Main part 18 Grasping part 20 Axis 22a, 22b Cutting blade 28a, 28b Grip piece 32 Release lever 40 Convergence protection member 108 Optical fiber core wire 110 Slot rod X Cutting position

Claims (3)

A cutting portion having a pair of cutting blades for cutting the umbilical acids in the longitudinal direction perpendicular of the linear compounds to be cut open and close pivot around,
An operation unit that is integrally connected to the cutting unit to open and close the cutting blade;
Gripping including a pair of gripping pieces which are spring-biased in a direction sandwiching the striatum such in cutting position near the filament such as to the pivot around independent the axis of the cutting blade and the opening and closing operation of the common axis and by operating portion and parts, the possess,
When cutting the cutting blade by closing the wire with a pair of gripping pieces, regardless of the closing operation of the cutting blade via the operation section, the center position of the cutting gap between both cutting blades and the grip A cutting tool for filaments, wherein the cutting operation is performed in a state where the center position of the gripping gap of the piece is substantially aligned .   The wire cutting tool according to claim 1, wherein an opening lever for opening any one of the grip pieces is provided. A wire cutting tool according to claim 1 or 2,
Convergence protection members that converge and hold other filaments that are not cut so as to be converged and freely opened so as not to be affected by the work operation at the time of cutting work by a cutting tool, Cutting tool set.

Images