JP2011161080A - Knife - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a knife with improved convenience allowing a user to start the cutting work without changing the hand holding the knife. <P>SOLUTION: The knife 10 for electric work includes a grip 11 to be held by hand of a worker, and a blade 12 projecting from the grip to cut the coating of an electric wire. The coating of the electric wire can be cut with a body blade 13 from a toe 13a at the tip to a heel 13b on the grip side. The knife has a scale 14 displaying the distance from the toe marked on a back 12a side of the blade parallel to the direction of extension of the body blade, and has an orthogonally crossing blade 15, extending in the direction of separating from the back, on the heel side. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a knife, for example, to a knife that can be easily cut and peeled off.

  Conventionally, when cutting a member to a desired size, it is common to work by determining the cutting start position etc. using the scale of a ruler as a guide, but without changing the cutting tool and ruler etc. In order to enter the cutting work as it is, the cutting tool is scaled (for example, Patent Documents 1 and 2).

JP 2006-180918 A Registered Utility Model No. 3081576

  However, in such a cutting tool with a scale, for example, in the knife of the cutting tool described in Patent Document 1, a scale is only attached to the adjacent position of the blade, and the scale is applied to the target. The cutting operation must be started by learning the position of the member, which is still inconvenient.

  Further, in the cutting tool pliers and knife described in Patent Document 2, the cutting start position can be marked on the target member with the protrusions prepared at the end of the scale, and the convenience is improved. ing. However, with such pliers and knives, the posture of the cutting tool must be changed between the measurement operation and the cutting operation using the scale, and there is still room for improvement in usability.

  Therefore, an object of the present invention is to provide a knife with improved convenience by allowing a cutting operation to be started without being changed.

  The invention of a knife that solves the above-described problem includes a grip portion that an operator grips with a hand, and a blade portion that projects from the grip portion and cuts an object, and the grip portion serves as a cutting edge from the tip to the blade portion. A knife capable of cutting the object with a main body blade up to the blade edge on the side, wherein a scale indicating a distance from the blade edge extends from the blade edge to the blade edge on the mining side of the blade portion. In addition to being provided in parallel with the existing direction, the blade base side has an orthogonal blade extending in a direction away from the minet.

  In this invention, the cutting start position can be adjusted so that the blade edge at the tip is positioned in accordance with the target member that cuts the scale of the blade portion while the grip portion is held by hand, and the cutting operation is started as it is. be able to. In addition, when the member to be cut is a cylindrical outer periphery, for example, an electric wire coating, it is rotated in the circumferential direction of the electric wire as it is while pressing the orthogonal blade on the blade base side, and cut at two points with the main body blade. Can do. Therefore, it is possible to start cutting in the posture as it is by aligning the blade edge with the position measured with the scale, without excessively applying a force such as covering the circular cross-section electric wire, and without repeating the cutting operation wastefully, Can be easily cut.

  As described above, according to the present invention, it is possible to start the cutting operation as it is by positioning the tip of the tip with the scale while holding the grip portion with the hand, and to circulate as it is in the circumferential direction while pressing the orthogonal blade. Since the column-shaped outer periphery can be easily cut even if it is made to be cut, it can be cut from the cutting start position with the posture measured by the scale. As a guide, the outer circumference can be cut in the circumferential direction. Therefore, it can cut | disconnect easily by a desired dimension in the circumferential direction with the axial direction of a cylindrical outer periphery, without changing by the measurement operation | work and cutting operation | work by a scale.

It is a figure which shows 1st Embodiment of the knife which concerns on this invention, and is a top view which shows the whole structure. It is a figure which shows 2nd Embodiment of the knife which concerns on this invention, and is a top view which shows the whole structure. It is a figure which shows the principal part structure, (a) is the one part enlarged plan view, (b) is the AA longitudinal cross-sectional view in (a).

  As an embodiment of the present invention, as in the above problem solving means, a grip portion that an operator grips with a hand and a blade portion that projects from the grip portion and cuts an object are provided at the tip of the blade portion. A knife that can cut the object with a main body blade from the blade edge to the grip portion side as a blade edge, and a scale that displays a separation distance from the blade edge on the mining side of the blade portion from the blade edge In addition to having an orthogonal blade extending parallel to the extending direction to the blade base and extending in a direction away from the minet on the blade base side, A configuration may be provided.

  As a first form, the grip portion is provided with a slide portion that is slidably incorporated in a direction parallel to the main body blade of the blade portion and is positioned by a hand that grips an adjacent position with respect to the main body blade. The orthogonal blade is disposed at the tip of the slide portion.

  In this configuration, the reference position of the member to be cut is brought into contact with the orthogonal blade by sliding the tip of the orthogonal blade in advance so that the tip of the orthogonal blade is positioned at a desired distance from the blade edge of the main body blade. Thus, the cutting edge of the main body blade can be positioned at the cutting start position, and the cutting operation can be started as it is without checking the scale every time cutting is started. Therefore, it is possible to reduce time and effort when repeating the same work, and it is possible to repeat the cutting work more comfortably.

  As a 2nd form, you may make it the end surface which can be positioned by abutting the reference position of a member to be cut, without providing an orthogonal blade at the tip of the slide part.

  In this configuration, the cutting start position can be positioned without taking care not to damage the reference position of the cutting target member. Therefore, the cutting operation can be repeated more comfortably.

  As a 3rd form, you may form the scale which can directly measure the slide amount of the said slide part.

  In this configuration, the distance from the blade edge of the main body blade can be measured directly as the sliding amount of the slide portion without using the position of the orthogonal blade or the like on the main body blade as a reference for the scale of the blade portion. Therefore, the cutting operation can be started with higher reliability and certainty.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a view showing a first embodiment of a knife according to the present invention.

  In FIG. 1, an electrical knife 10 is a tool used when, for example, tearing off and covering the sheath when performing an operation of exposing a conductive core wire of an electric wire, and a grip portion 11 that an operator grips with a hand, A blade portion 12 that protrudes from the grip portion 11 and cuts the coating of the electric wire is provided.

  The electric knife 10 is formed with a main body blade 13 capable of cutting an object to be cut using a blade base 13b from the tip of the blade portion 12 to a side close to the grip portion 11 as a blade edge 13a. The scale 14 which displays the separation distance from the blade edge | tip 13a in parallel with the extension direction is formed between the minine 12a and the main body blade 13. As shown in FIG. In the figure, the scale 14 shows only marks of every 1 cm and every 5 mm, but it goes without saying that, for example, the distance can be displayed more finely in units of 1 mm. .

  As a result, the electric knife 10 cuts the blade edge 13a of the main body blade 13 at a desired position from the end of the electric wire with the graduation 14 of the blade portion 12 as a guide while the grip portion 11 is held by the hand. Can start.

  In addition, the electric knife 10 is formed such that the orthogonal blade 15 is continuous with the blade base 13b of the main body blade 13 of the blade portion 12 so as to extend in the orthogonal direction away from the minet 12a. In addition, the main body blade 13 and the orthogonal blade 15 can simultaneously cut two locations by being brought into pressure contact with the surfaces of the orthogonally-positioned members.

  Thereby, the electric knife 10 cuts two places at the same time by, for example, bringing the main body blade 13 and the orthogonal blade 15 of the blade portion 12 into pressure contact with each other on the outer periphery of the columnar shape and shifting in the circumferential direction, thereby covering the electric wire having a circular cross section. It is possible to cut easily without excessive force and without repeating the cutting operation unnecessarily.

  For this reason, when performing the operation | work which peels the coating | cover of the edge part of an electric wire and exposes a conductive core wire, it uses the graduation 14 of the blade part 12 as a standard, and the edge part of an electric wire, with the grip part 11 held in the hand After the blade edge 13a of the main body blade 13 is positioned at a desired position from the cutting position and cut toward the end, the main body blade 13 and the orthogonal blade 15 are pressed against the outer surface of the electric wire at the cutting start position. By covering in the direction, the coating can be easily separated and peeled off.

  As described above, in the present embodiment, the cutting edge position in the covering of the electric wire is accurately determined by the scale 14 while the grip portion 11 of the electric knife 10 is held by hand, and the cutting edge 13a of the main body blade 13 of the blade portion 12 is determined. Can be cut in the length direction by the above, and thereafter, simply press and rotate the orthogonal blade 15 together with the blade base 13b of the main body blade 13 to the cutting start position without repeating the rotating operation. The electric wire coating can be cut and peeled off. Therefore, it is possible to easily peel the coating from the position accurately measured by the scale 14 and to efficiently expose the conductive core wire.

  Next, FIG. 2 and FIG. 3 are views showing a second embodiment of the knife according to the present invention. Here, since the present embodiment is configured in substantially the same manner as the above-described embodiment, the same components are denoted by the same reference numerals and the characteristic portions will be described.

  In FIG. 2, the electric knife 20 includes a grip portion 11 and a blade portion 12, and a scale 14 is formed on the blade portion 12, and instead of the orthogonal blade 15 in the above embodiment, An orthogonal blade 25 that can be advanced and retracted in the extending direction of the blade portion 12 is provided.

  The electric knife 20 includes a slide bar (slide part) 21 that is slidable in a direction parallel to the main body blade 13 of the blade part 12 in the grip part 11, and an orthogonal blade 25 is formed at the tip of the slide bar 21. Has been. The slide bar 21 is slidably accommodated in a slide hole 22 drilled in the grip portion 11, and is connected to a connecting projection 23 in a narrow slit 22 a that opens in the parallel direction of the side surface of the slide hole 22. The positioning plate 24 facing the side surface of the grip portion 11 is connected and fixed.

  As a result, the electric knife 20 can slide the positioning plate 24 so that the orthogonal blade 25 is located at a desired position from the cutting edge 13a of the main body blade 13 with the scale 14 of the blade portion 12 as a guideline. Is pressed against the side surface of the grip portion 11 so that the orthogonal blade 25 can be fixed at a desired distance from the blade edge 13a of the main body blade 13. In this state, by bringing the orthogonal blade 25 into contact with the end face of the electric wire, the cutting edge 13a of the main body blade 13 can be positioned at the cutting start position, and cutting can be started. 13, the coating of the electric wire can be easily cut in the outer peripheral direction.

  As described above, in the present embodiment, in addition to the effects of the above-described embodiment, for example, each time the work of stripping the coating of many wires is repeated, the position of the cutting edge 13a of the main body blade 13 is determined with the scale 14 each time. Without confirming, the cutting can be started simply by bringing the orthogonal blade 25 into contact with the end face of the electric wire, and the cutting operation can be repeated more comfortably.

  As another aspect of the present embodiment, although not shown in the drawings, the slide bar 21 may be formed on a simple end surface without providing the orthogonal blade 25 at the tip. In this case, the cutting edge 13a of the main body blade 13 can be positioned by pressing against the end face of the electric wire, and the cutting operation can be started more comfortably without taking care not to damage the end face of the electric wire. be able to.

  In addition, the slide position of the orthogonal blade 25 is not measured by the scale 14, but the separation distance from the blade edge 13a of the main body blade 13 according to the relative movement distance is displayed on the side surface of the positioning plate 24 and the grip portion 11 as it is. It may be. In this case, it is possible to directly measure without measuring the position of the orthogonal blade 25 with the scale 14 of the separation position, and it is possible to start the cutting operation with higher reliability and certainty.

  Although one embodiment of the present invention has been described so far, it is needless to say that the present invention is not limited to the above-described embodiment, and may be implemented in various forms within the scope of the technical idea.

  10, 20 ... Electric knife 11 ... Grip part 12 ... Blade part 12a ... Minet 13 ... Main body blade 13a ... Blade edge 13b ... Blade edge 14 ... Scale 15, 25 ... Orthogonal blade 21 ... Slide Bar 24 …… Positioning plate

Claims (2)

A gripping part gripped by an operator and a blade part that protrudes from the gripping part and cuts an object, wherein the target is a main body blade from the tip to the cutting edge on the gripping part side. A knife capable of cutting objects,
A scale for displaying a separation distance from the cutting edge is provided on the mining side of the blade portion in parallel with the extending direction of the main body blade, and extends on the cutting edge side in a direction away from the mining. A knife having an orthogonal blade. The grip portion is provided with a slide portion that is slidably incorporated in a direction parallel to the main body blade of the blade portion and is positioned with a hand that grips an adjacent position with respect to the main body blade,
The knife according to claim 1, wherein the orthogonal blade is disposed at a tip of the slide portion.

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