JP6473061B2 - Cutting tool - Google Patents

Description

  The present invention relates to a cutting tool configured to cut a material to be cut with a pair of cutting blades pivotally supported so as to be opened and closed.

  In a conventional cutting tool that cuts a material to be cut such as a wire, a cable, a bar, or a pipe, a pair of cutting blades are pivotally supported by a connecting member so that the blade pivots at the base of each cutting blade. The tip of the handle is pivotally attached via the attachment member, and the pair of handles are pivotally attached to be opened and closed by the handle pivot attachment member, and the workpiece to be cut placed between the pair of cutting blades is cut by opening and closing the handle. There is what is made to do (for example, patent document 1).

JP 2007-151889 A

  However, conventionally, when cutting a material to be cut, with a pair of handles held by both hands and a pair of cutting blades open, the cutting blade is brought close to the material to be cut and the material to be cut between the cutting blades In this state, the pair of handles are closed, the pair of cutting blades are closed, and the material to be cut is cut between the cutting blades. When this cutting is performed, the material to be cut receives stress from the cutting blade toward the tip side, so that the material to be cut escapes from between the cutting blades to the tip side, and there is a problem that the material to be cut cannot be cut well. .

  In view of the above problems, an object of the present invention is to provide a cutting tool capable of successfully and reliably cutting a material to be cut so that the material to be cut does not escape from between cutting blades.

Specific means for solving the problems in the present invention are as follows.
The technical means of the present invention for solving this technical problem is a cutting tool in which a pair of cutting blades 4 are pivotally supported by a connecting member 5 so as to be opened and closed.
Corresponding to the cutting blade 4, a pair of escape prevention members 15 are pivotally supported with respect to the connecting member 5, and the workpiece 2 entering between the cutting blades 4 is closed between the pair of escape prevention members 15. The storage opening 19 that can be stored and the escape stopper 20 that is located at the front end side of the storage opening 19 and that prevents the material 2 to be cut out from the storage opening 19 are formed.
Further, according to another technical means of the present invention, the tip side of the pair of escape preventing members 15 protrudes in the direction of the blade tip from the pair of cutting blades 4, and the workpiece 2 is placed between the cutting blades 4. A guide portion 23 that is inclined so as to widen the tip to be introduced is formed, and a biasing tool 25 that biases each escape prevention member 15 in the closing direction is provided between the base portion of the escape prevention member 15 and the connecting member 5. It is in.

Further, according to another technical means of the present invention, a mounting plate 29 is fixed to the connecting member 5, and a base portion of a pair of escape preventing members 15 is pivotally supported by the mounting plate 29 so as to be freely opened and closed. The plate 29 is provided with a stealing 33 capable of storing the material 2 to be cut corresponding to the storage opening 19.
Further, according to another technical means of the present invention, the pair of cutting blades 4 have a blade portion 4b formed on the tip side, a longitudinally intermediate portion is pivotally supported by the connecting member 5, and the base portion 4a is interposed via the blade pivot shaft 7. The tip of the handle 8 is pivotally attached, and the tip of the pair of handles 8 is pivotally connected between the two blade pivots 7 via the handle pivot 9 so that the escape prevention member 15 is accommodated. The opening 19 is in the point formed in the length over the substantially full length of the blade part 4b of the cutting blade 4. FIG.

  According to the present invention, the material to be cut that has entered between the cutting blades is stored in the storage opening between the escape prevention members, and when the escape prevention member is closed, the material to be cut is cut by the escape portion on the front end side of the storage opening. Since the material is prevented from escaping from the storage opening, the material to be cut can be held between the cutting plates, and the material to be cut can be reliably and satisfactorily cut with the cutting blade.

It is a top view of the cutting tool which shows one Embodiment of this invention. It is a front view of the cutting tool. It is a bottom view of the cutting tool. It is a top view of the cutting tool for action explanation. It is a top view of the cutting tool for action explanation.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3, a cutting tool 1 is for cutting a to-be-cut material 2 that is a wire strand or a stranded wire, for example, and a pair of cutting blades 4 are pivotally connected by a connecting member 5 so as to be opened and closed. The tips of the handles 8 are pivotally attached to the bases 4a of the cutting blades 4 via the blade pivots 7, and the tips of the pair of handles 8 can be opened and closed with respect to each other via the handle pivots 9 between the two blade pivots 7. It is pivotally connected to.

Each cutting blade 4 is formed with a blade portion 4b on the distal end side, and the base portion 4a side is inclined away from the blade portion 4b and gradually becomes thinner. A pair of cutting blades 4 are arranged to face each other so that the blade portions 4 b face each other, and front and back connecting members 5 formed of plate pieces are arranged on both sides of the pair of cutting blades 4.
The front and back connecting member 5 sandwiches a pair of cutting blades 4 on the blade part 4b side from the longitudinal center of the cutting blade 4, and pivotally connects the pivoting member 11 formed of bolts to both. Yes. Therefore, the cutting blade 4 is pivotally supported by the connecting member 5 at the middle in the longitudinal direction by the pivot member 11, and swings around the pivot member 11 to perform an opening / closing operation for cutting the workpiece 2.

The pair of handles 8 are formed with pivoting portions 8a projecting in the opposite inward direction at the tips, and the pivoting portions 8a of both the handles 8 are pivotably mounted by a handle pivot shaft 9 formed of bolts. Yes. Note that one pivoting portion 8a of the handle 8 has a bifurcated shape, and the other pivoting portion 8a has a bifurcated shape.
The pair of handles 8 is provided with a stopper 12 projecting in the opposite inward direction from the handle pivot 9 toward the base portion 4a. When both the stoppers 12 come into contact with each other, the closing operation of the handle 8 is stopped.

  A pair of escape prevention members 15 are provided corresponding to the front side of the pair of cutting blades 4. The escape prevention member 15 prevents the material 2 to be cut that has entered between the cutting blades 4 from escaping from the front end side, and is formed in a plate shape. The base of the escape prevention member 15 is located on the front end side of the cutting blade 4. Arranged on the outer surface, the front end side of each escape prevention member 15 protrudes outward from the cutting blade 4, and the pair of escape prevention members 15 pivot with respect to the connecting member 5 via a mounting plate 29 described later. The pivot 17 is pivotally supported so as to be opened and closed.

  Between the pair of escape prevention members 15, a storage opening 19 capable of storing the material to be cut 2 entering between the cutting blades 4 in a closed state, and a storage opening for storing the material to be cut 2 at the front end side of the storage opening 19. A refuge portion 20 for escaping from 19 is formed. The storage opening 19 is constituted by a pair of notch recesses 22 formed at the opposite end on the base side of each escape prevention member 15, and stores and holds the workpiece 2 correspondingly between the pair of cutting blades 4. The escape prevention portion 20 is constituted by a pair of stop pieces 21 provided at the front end side of the notch recess 22 of each escape prevention member 15. The tip end side of 19 is closed.

The tip side of the pair of escape prevention members 15 protrudes from the pair of cutting blades 4 in the direction of the blade tip, and a guide portion 23 that is inclined so as to widen the tip for introducing the workpiece 2 between the cutting blades 4 is formed. Has been. Opposing end surfaces of the pair of guide portions 23 are guide surfaces 23 a inclined so as to widen the tip so as to guide the workpiece 2 to the storage opening 19.
A biasing tool 25 that biases each escape prevention member 15 in the closing direction is provided between the base of the escape prevention member 15 and the connecting member 5. A spring housing recess 26 is formed at the base of each escape prevention member 15 so as to be recessed from the base end surface toward the distal end. A coil spring 27 is housed in each spring housing recess 26 so as to project outward, and the coil spring 27 projects. The end portion is brought into contact with the end surface on the front end side of the connecting member 5, whereby the urging tool 25 is constituted by a coil spring 27, and the opposing escape preventing member 15 is urged in the closing direction.

A mounting plate 29 is fixed to the front side connecting member 5. The mounting plate 29 includes a fixed plate portion 29a superposed and fixed on the connecting member 5, and a pair of support plate portions 29b disposed on the base portion of each escape preventing member 15. The fixed plate portion 29a is a bolt or the like. The fastening member 31 is fastened and fixed to the connecting member 5.
The back surface side of the support plate portion 29b protrudes toward the escape preventing member 15 side from the fixed plate portion 29a, and the plate thickness is increased. The base portions of the pair of escape prevention members 15 are pivotally supported by a pair of support plate portions 29b so as to be openable and closable around a pivot shaft 17 constituted by bolts and nuts, etc., and between the support plate portions 29b of the mounting plate 29 Is provided with a concave stealer 33 which can accommodate the material 2 to be cut corresponding to the accommodation opening 19.

The storage opening 19 of the escape preventing member 15 is formed to have a length that extends over substantially the entire length of the blade portion 4b of the cutting blade 4, and is formed to be long in the longitudinal direction of the blade portion 4b. Thereby, for example, a U-shaped latch of a padlock can be stored in the storage opening 19 and the cutting blade 4 can simultaneously cut two places.
According to the embodiment, when the workpiece 2 is cut, the pair of handles 8 are held with both hands, and the cutting blade 4 is opened as shown by a two-dot chain line in FIG. When the escape preventing member 15 is brought closer to the workpiece 2, as shown by a solid line in FIG. 1, the workpiece 2 easily enters between the pair of guide portions 23 of the escape preventing member 15, and guide surfaces 23a. Is guided to the base portion between the guide portions 23. Further, when the base portion of the guide portion 23 is pressed against the material 2 to be cut, the material 2 to be cut presses the guide surface 23a by a reaction, and the escape preventing member 15 is urged by the urging tool 25 as shown in FIG. Against the pivot shaft 17 swinging open. Thereafter, as shown in the two-dotted line in FIG. 1 or FIG. 5, the workpiece 2 is stored in the storage opening 19, and the urging member 25 urges the escape preventing member 15 around the pivot shaft 17. The pair of stopper pieces 21 of the escape stopper 20 are brought into contact with each other, the distal end side of the storage opening 19 is closed, and the workpiece 2 is stored in the storage opening 19.

  In this state, when the handle 8 is operated to close the pair of cutting blades 4, the workpiece 2 is cut between the cutting blades 4. At this time, the workpiece 2 is prevented from escaping from the storage opening 19 by the escape portion 20 on the distal end side of the storage opening 19, so that the workpiece 2 is prevented from escaping between the cutting blades 4 by the escape prevention member 15. it can. Accordingly, the material 2 to be cut that has entered between the cutting blades 4 is stored in the storage opening 19 between the escape prevention members 15, and the material 2 to be cut is securely held between the cutting blades 4, so that the material 2 to be cut is 4 can cut well and reliably.

  In the above-described embodiment, the guide portion 23 that is inclined so as to widen the distal end is formed on the distal end side of the pair of escape preventing members 15, and the biasing tool 25 that biases the escape preventing member 15 in the closing direction is provided. The guide portion 23 and the urging tool 25 may be omitted. In this case, for example, an operating lever or the like for opening / closing the escape preventing member 15 is provided at the base of the handle 8 to open / close the escape preventing member 15. May be remotely operated manually.

  Moreover, the cutting tool 1 should just be a thing with which a pair of cutting blade 4 was pivotally supported by the connection member 5 so that opening and closing was possible, for example, a pair of cutting blade 4 was pivotally supported by the connection member 5 so that opening and closing was possible at one point. It may be what was done. Further, the operation handle 8 may be integrally connected and fixed to the pair of cutting blades 4 or the operation handle 8 may be omitted, and the pair of cutting blades 4 may be opened and closed. You may make it operate with the tool of this, a tool, etc.

DESCRIPTION OF SYMBOLS 1 Cutting tool 2 Material to be cut 4 Cutting blade 4a Base 4b Blade part 5 Connecting member 7 Blade pivot 8 Handle 9 Handle pivot 15 Escape prevention member 19 Storage opening 20 Escape prevention part 23 Guide part 25 Energizing tool 29 Mounting plate 33 Stealing

Claims (4)

A pair of cutting blades (4) is a cutting tool pivotally supported by the connecting member (5) so as to be opened and closed,
Corresponding to the cutting blade (4), a pair of escape prevention members (15) are pivotally supported with respect to the connecting member (5), and the pair of escape prevention members (15) are closed between the cutting blades (15). 4) A storage opening (19) that can store the material to be cut (2) that is in between, and a clearance that is located at the distal end side of the storage opening (19) and prevents the material to be cut (2) from escaping from the storage opening (19). A stop (20) is formed ,
The tip end side of the pair of escape prevention members (15) protrudes in the direction of the blade tip from the pair of cutting blades (4), and the tip spreads to introduce the workpiece (2) between the cutting blades (4). An urging tool (25) for urging each escape prevention member (15) in the closing direction between the base part of the escape prevention member (15) and the connecting member (5). cutting tool, characterized in that There are provided. A pair of cutting blades (4) is a cutting tool pivotally supported by the connecting member (5) so as to be opened and closed,
Corresponding to the cutting blade (4), a pair of escape prevention members (15) are pivotally supported with respect to the connecting member (5), and the pair of escape prevention members (15) are closed between the cutting blades (15). 4) A storage opening (19) that can store the material to be cut (2) that is in between, and a clearance that is located at the distal end side of the storage opening (19) and prevents the material to be cut (2) from escaping from the storage opening (19). A stop (20) is formed,
A mounting plate (29) is fixed to the connecting member (5), and a base portion of a pair of escape prevention members (15) is pivotally supported by the mounting plate (29) so as to be opened and closed. disconnect tool, characterized in that the retractable stole (33) is provided to be cut material (2) corresponding to the housing opening (19) in the. A pair of cutting blades (4) is a cutting tool pivotally supported by the connecting member (5) so as to be opened and closed,
Corresponding to the cutting blade (4), a pair of escape prevention members (15) are pivotally supported with respect to the connecting member (5), and the pair of escape prevention members (15) are closed between the cutting blades (15). 4) A storage opening (19) that can store the material to be cut (2) that is in between, and a clearance that is located at the distal end side of the storage opening (19) and prevents the material to be cut (2) from escaping from the storage opening (19). A stop (20) is formed,
The pair of cutting blades (4) has a blade portion (4b) formed on the tip side, a longitudinally intermediate portion is pivotally supported by the connecting member (5), and a handle is provided on the base portion (4a) via the blade pivot shaft (7). The tip of (8) is pivotally attached, and the tip of the pair of handles (8) is pivotally connected between the two blade pivots (7) via a handle pivot (9) so as to be opened and closed, opening of the housing (19) escapes preventing member (15), disconnect the tool you, characterized in that it is formed to a length over substantially the entire length of the blade portion of the cutting blade (4) (4b). The pair of cutting blades (4) has a blade portion (4b) formed on the tip side, a longitudinally intermediate portion is pivotally supported by the connecting member (5), and a handle is provided on the base portion (4a) via the blade pivot shaft (7). The tip of (8) is pivotally attached, and the tip of the pair of handles (8) is pivotally connected between the two blade pivots (7) via a handle pivot (9) so as to be opened and closed, housing opening of the relief preventing member (15) (19), according that it is formed to a length over substantially the entire length to claim 1 or 2, characterized in blade portion of the cutting blade (4) (4b) Cutting tool.

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