JP2014176583A - A pair of scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pair of scissors which can make a right-angled cut with respect to a side of a cutting object with no marking of a cutting line to the cutting object or with only a marking of a cutting start point, make a succeeding straight-line cut, and produce little curve in a cut area of the cutting object after cutting.SOLUTION: In a pair of scissors with a pair of bodies coupled so as to be rotatable on a pivot, the top of a lower body handle 12 is provided with a linear guide 16 to guide a feed of a cutting object, a first cradle 24 that keeps a stem fixed on an outside surface of the lower body and extends outward from the stem by the height of a blade of the lower body to bear the cutting object, a linear guide 31 to position the edge of the cutting object, and a second cradle 27 that extends outward of an upper body to bear the cutting object.

Description

  The present invention relates to a scissors capable of cutting at right angles and straight lines.

  With regard to a right-handed scissors, a scissors that can be cut at right angles and straight lines by providing a cradle for a workpiece and a right-angle guide on the left side of the slimming body have been proposed (see Patent Document 1). The scissors of the present invention can be cut at right angles to the side of the object to be cut, but the straight line cutting is only the first time by the handgrip cutting, and the second and subsequent straight lines cannot be cut. there were.

  In addition, there has been proposed a scissors that can perform straight cutting by providing a straight guide for feeding the workpiece along the top of the handle (see Patent Document 2). The scissors of the present invention always require marking of the cutting line on the workpiece, including when cutting at a right angle to the side of the workpiece, which is frequently performed, Since the workpiece is not in contact with the linear guide for workpiece feed, it is necessary to cut while aiming at the marking of the cutting line, and when cutting straight using the linear guide for workpiece feed However, there is a drawback in that a transverse tension is applied to the object to be cut due to the object being tilted to the left and right or hanging down, and the cut end of the object to be cut is bent.

JP 2001-137570 A Published Utility Model Gazette 1-11-1568

  The present invention has been made to solve the above-described problems, and performs cutting at right angles to the side of the workpiece without marking of the cutting line on the workpiece or only marking of the cutting start point. The object of the present invention is to provide a ridge that can be continuously cut and the cut end of the cut object after cutting is less bent.

  In order to solve the above-described problems, the scissors according to the present invention are a scissors in which a pair of slimmings are coupled so as to be rotatable around a support shaft, and an upward plane is formed on the upper part of the lower slimming handle. A guide for feeding an object to be cut, which is composed of a guide surface that stands upward from an upward plane and faces the outer direction of the lower slime, and whose intersection line is located in substantially the same plane as the inner side surface of the lower slime. A linear guide for performing and a base portion fixed to an outer surface of the lower slimming body, and extending outwardly from the base at a height of a substantially blade of the lower slimming body for receiving and supporting an object to be cut; A pedestal and a step projecting from the upper surface of the support side end of the first pedestal, and the line of intersection of the step is substantially perpendicular to the inner surface of the lower slime; A right angle guide for positioning the end of the object to be cut, and further from the base, through the lower slime and the lower part of the upper slime, A second cradle for receiving and supporting the object to be cut extending in a direction, and the height of the second cradle is determined from the height of the approximate peak of the lower slime, The height of the blade of the upper slime when it is closed, and the end of the slimming end of the second cradle is the abbreviation of the lower slime. It is characterized by the height of the blade.

  Of the above, "lower slime" and "upper slime" are two slimmings that are opened up and down around the support shaft. This slimming is called "lower slimming". Further, the “intersection line of the stage” indicates an intersection line below the vertical plane of the stage. In this document, for the convenience of explanation, an expression using a right-handed heel is used. The left and right or front, back, and front directions in the text indicate the direction in which the hand is held in a posture to use the heel.

  According to the above configuration, when cutting at a right angle to the side of the object to be cut that is frequent, there is no marking of the cutting line on the object to be cut, or only the marking of the cutting start point, and the right angle guide is used first. A first cut can be made at right angles to the side of the object to be cut, and the cut of the left object to be cut next can be made along the straight guide to perform the second and subsequent cuts by a straight line cut. Thereby, the cut end of the workpiece after cutting becomes a straight line perpendicular to the side of the workpiece. Moreover, when cutting at right angles to the side of the object to be cut as described above, difficult cutting aiming at marking becomes unnecessary.

  In the case where a pedestal for a workpiece is provided only on the left side of the heel, the workpiece that has not yet been cut hangs down to the lower right on the right side of the heel. The thinner the paper and the less rigid workpiece, the more drooping downward, but this phenomenon applies a rightward tension to the workpiece at the cutting point where the blades intersect and cut the workpiece. Turns left. In addition, the cut object on the right side hangs down, and the cut end comes into contact with the inner side surface of the lower slime. A rightward tension is applied to the cutting point, and in this case, the cut end also bends leftward. These bending phenomena occur with or without the use of linear guides. In the configuration of the present invention, a pedestal for the object to be cut is provided on the right side in addition to the left side of the heel, and the right side tension due to the drooping or lever action is supported by the pedestal on the right side. Is reduced, and the incision is reduced from turning to the left.

  Similarly, in the case where the cradle for the object to be cut is provided only on the left side of the heel, when the handful of cutting by the heel is finished, the heel is opened up and down for the next cutting, and the heel is advanced forward. When the blade is fed, the drooped workpiece is driven by the blade feed due to friction between the cut surface of the workpiece hanging to the right and the inner surface of the lower slime, and proceeds to just below the cutting point of the workpiece. Sometimes. This phenomenon is more likely to occur with thin paper or a workpiece with low rigidity. In this state, the next cutting is performed. In this case, since the lever fulcrum is located immediately below the cutting point, the lever action with the weight of the workpiece is strong, and the cutting point of the workpiece is cut. The tension in the right direction applied to becomes stronger, and the incision bends further to the left. In the configuration of the present invention, a pedestal for a cut object is provided on the right side in addition to the left side of the ridge, and the cut right side cut object comes into contact with the cradle and hangs down with a gentle curve. It becomes difficult to follow the feed and reduces the bending of the cut edge strongly.

  Similarly, in the case where the cradle for the workpiece is provided only on the left side of the ridge, the cutting is performed by the reaction caused by the right-side cut object hanging down from about 15 mm before the end of cutting during the cutting. A phenomenon occurs in which the object to be cut around the point rises diagonally. Cut this raised workpiece while pressing it with the upper slim blade, but the upper slim blade pushes the workpiece to the left and right slightly before pressing the workpiece completely to the lower slim blade. In order to cut at that position, the cut end turns to the right. This is because the cutting position is determined with the object slightly lifted around the front of the cutting point, and the distance to the left end of the object to be cut is longer than the normal length. As the remaining cutting amount is further reduced from around 15 mm, the rigidity of the remaining object to be cut becomes lower, the object to be cut rises more strongly, and the cut edge is bent more strongly to the right. In the configuration of the present invention, since the cradle for the object to be cut is provided on the right side in addition to the left side of the ridge, the cut right side cut object comes into contact with the cradle during cutting, and a gentle curve Since it hangs down at the end of cutting, the rising of the object to be cut around the front of the cutting point is reduced and the cut end of the object to be bent is turned to the right at the final cutting stage. To reduce that.

  Further, in the above-mentioned scissors, the right-angle guide having a width capable of sandwiching an object to be cut across the thumb and the index finger from the rear of the right-angle guide to the cradle of the right-angle guide portion of the first cradle. You may provide the strip | belt-shaped part along.

  In cutting the scissors, the object to be cut is cut while being pushed forward by a handful of cutting. For this reason, when performing right-angle cutting, it is necessary to fix the object to be cut by holding the object to be cut with a finger at the right-angle guide portion and fixing the object to be cut. If the workpiece is drooping greatly to the front of the heel when the workpiece is set on the right angle guide, the workpiece will drop forward if you release your hand. It is difficult to shift to a state where the object to be cut and the cradle are sandwiched between fingers, but in this configuration, since the pedestal of the right angle guide portion has a belt-like portion along the right angle guide, the object to be cut is Can be inserted under the object to be cut in the ring of the finger, and the belt-shaped part of the right-angle guide cradle can be inserted under the object to be cut. After making the cut object contact the right angle guide, slide the finger forward and pinch the cut object and the cradle with the finger to easily cut the cut object for right angle cutting. Can be set and fixed.

  According to the present invention, there is no marking of the cutting line on the object to be cut, or only the marking of the cutting start point, making a right angle cut to the side of the object to be cut, and then performing a straight line cutting, The cut end of the cut object after cutting can provide a wrinkle with less bending.

It is a front view of a kite. It is a top view of a ridge. It is a rear view of a bag. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is the figure which showed the other shape of the 2nd front cradle, and is sectional drawing of the same position as FIG. It is the figure which showed the other shape of the 1st cradle. It is the figure which showed the other shape of the 2nd cradle, (a) is a top view, (b) is a right view. It is a front view of a cradle. It is a cutting state figure by a scissors. It is explanatory drawing which shows a blade feeding state in the case of no 2nd receiving stand. It is a perspective view showing the use condition of a right angle guide. It is a perspective view showing the use condition of a linear guide.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Composition of strawberry]
As shown in FIGS. 1 to 5, a pair of slimmings are rotatably coupled by a support shaft 5, and this figure represents a right-handed scissor, so that the slimming up and down is centered on the support shaft 5. The upper slime 2 located on the upper side of the lid is arranged on the right side of the heel and the lower slime 3 located on the lower side is located on the left side of the heel. Each is provided with a blade 4 at the top. An upper slim handle 11 and a lower slim handle 12 are attached to the other end of the slim body with the support shaft 5 as a boundary, and a finger insertion hole 13 is provided in each. The upper part of the lower slim handle 12 is composed of an upward plane 14 and a guide surface 15 that stands upward from the upward plane 14 and faces the outer side of the lower slime 3, and the intersection line is the lower slime A straight guide 16 is formed which is located in substantially the same plane as the inner side surface 7 of the inner surface 7.

  In the present embodiment, the height of the upward plane 14 is the same as the extension line of the blade 4 of the lower slim 3, but the height of the upward plane 14 on the support shaft 5 side is the same extension. Any height may be set within a range of 20 mm above the line and 10 mm below the extension line, and the upward plane 14 is inclined toward the vicinity of the rear end of the blade 4. May be attached. In the present embodiment, the guide surface 15 is perpendicular to the upward plane 14, but the guide surface 15 may be a linear guide 16 inclined with respect to the upward plane 14.

  A locking tool 20 is fixed to the outer surface of the lower slimming body 3 with bolts at two positions on the slimming tip side and the support shaft 5 side. A base 23 of a cradle 22 having two notches 21 (FIG. 9) that engages with the locking tool 20 is attached by inserting the notch 21 into the locking tool 20. The first cradle 24 extends to the left at the height of the substantially blade 4 of the lower slim body 3. The length in the vertical direction of the first cradle 24 is the length from the vicinity of the intersection of the blades 4 when the two slimmings are largely opened to the vicinity of the tip of the slimming. The size is slightly smaller than the length in the direction. The first cradle 24 is divided into a first front cradle 25 on the slim tip side and a first rear cradle 26 on the support shaft 5 side, and the end portion on the support shaft 5 side of the first rear cradle 26. A right angle guide 31 is provided on the upper surface of the lower surface of the lower body. The right angle guide 31 is provided with a step that abuts the end of the workpiece. Is substantially perpendicular to the angle. The first rear cradle 26 has a belt-like portion 37 along the right angle guide 31 having a width capable of sandwiching an object to be cut between the thumb and the index finger from behind the right angle guide 31. Further, a scale 32 representing the distance from the inner side surface 7 of the lower slime is attached to the upper surfaces of the first front cradle 25 and the first rear cradle 26.

  Further, the second cradle 27 extends from the base 23 to the right at the height of the approximate peak 6 of the lower body 3 and passes through the lower part of the upper body 2. This is the same as the first cradle 24. Both the size of the first cradle 24 and the second cradle 27 is within the range of up to twice the length in the vertical direction and 1.2 times the width with respect to the distance from the spindle 5 to the slimming tip. It is desirable to set to. The second cradle 27 is divided into a second front cradle 28 on the slimming tip side and a second rear cradle 29 on the support shaft 5 side. The height of the second rear cradle 29 is lower 3, the height of the second front cradle 28 is the height of the approximate peak 6 of the lower slime 3, and extends to the upper right from there, and the tip is the lower slime 3. Is approximately the height of the blade 4. The height of the second rear cradle 29 and the second front cradle 28 on the slime side is substantially the same as that of the lower slime 3, and the height of the upper slime 2 when the two slimes are closed. However, in the case of the second rear cradle 29 in particular, since the cut right-hand cut object hangs down and comes into contact with the cradle, it is uniform from the immediate vicinity of the slimming. It is necessary to use a pedestal that extends outward at a certain height, and when a steel plate is used for the pedestal 22, the height of the ridge 6 of the lower body 3 is set so that bending is not complicated. In the case where synthetic resin is used for the cradle 22, a step is formed upward immediately after passing through the lower part of the upper slime 2 at the height of the approximate slime 6 of the lower slime 3 from the base 23. The cradle can be raised in the range up to the height of the blade 4 of the upper slimming 2 when the two slimmings are closed. In this case, it is desirable to raise the cradle so that the effect of the cradle becomes greater, especially when the difference between the height of the heel 6 of the lower body 3 and the height of the blade 4 of the upper body 2 is large.

  The second front cradle 28 may have the shape of (a) or (b) of FIG. Further, the first front receiving base 25 and the second front receiving base 28 on the slimming tip side and the first rear receiving base 26 and the second rear receiving base 29 on the support shaft 5 side are separated and divided into two. The base 23 may be directly attached with a bolt without using the locking tool 20. The first cradle 24 may have the shape of FIG. 7, and the second cradle 27 may have the shape of FIG. 8.

  As shown in FIG. 10, according to the present embodiment, the second cradle 27 for the workpiece 36 is provided on the right side in addition to the left side of the heel, so the right side of the heel has not been cut yet. By reducing the drooping of the workpiece 36 to reduce the rightward tension of the workpiece to the cutting point 35, and by using the lever fulcrum 33 formed by the drooping of the cut right workpiece 36, This reduces the leverage with the weight of the right-side workpiece 36, reduces the rightward tension to the cutting point 35 of the workpiece, and reduces the problem that the cut end of the workpiece 36 bends to the left. be able to.

  In addition, as shown in FIG. 11, when a pedestal for the workpiece 36 is provided only on the left side of the ridge and there is no pedestal on the right side, the workpiece 36 that hangs down when feeding the blade in the middle of cutting, The blade is driven by the friction with the inner side surface 7 of the lower slime and may proceed to just below the cutting point 35 of the workpiece. In the next cutting, the fulcrum 33 is the cutting point 35 of the workpiece. Therefore, there is a problem that the lever action with the weight of the object to be cut 36 acts strongly, the rightward tension applied to the cutting point 35 of the object to be cut becomes stronger, and the cut edge bends to the left more strongly. Arise. In the present embodiment, the second cradle 27 for the workpiece 36 is provided on the right side in addition to the left side of the ridge, and the cut right side workpiece 36 is provided on the second rear cradle 29 (FIG. 10). Since it abuts and hangs down with a gentle curve, it becomes difficult to follow the blade feed, and the bending of the cut end is reduced.

  In the case where a pedestal for the workpiece 36 is provided only on the left side of the ridge, the workpiece 36 rises around the front of the cutting point 34, which occurs from the time when about 15 mm before the end of cutting is left during cutting. However, in this embodiment, since the second cradle 27 for the object to be cut 36 is provided on the right side in addition to the left side of the ridge, the cutting edge is bent in the right direction. Since the cut right-side workpiece 36 comes into contact with the second rear receiving base 29 (FIG. 10) and hangs down with a gentle curve, the front of the cutting point 34 from about 15 mm before the end of cutting is left. The rising of the object to be cut around the periphery is reduced, and the cut end of the object to be cut is reduced in the right direction at the final cutting stage.

[How to use strawberry]
A case of cutting at right angles to the side of the workpiece 36 will be described. There is no marking of the cutting line on the object to be cut 36, or only the marking of the cutting start point is put, and about 15 mm left of the cutting start point of the object to be cut 36 is sandwiched between the thumb and forefinger of the left hand, and the slime is opened wide. Then, the band-like portion 37 of the first rear receiving base 26 having the right angle guide 31 is inserted into the ring of the finger under the object to be cut 36, and the end of the object to be cut 36 is inserted into the right angle guide 31. The object to be cut 36 is moved left and right while being brought into contact with the blade 4 to adjust the cutting position to the blade 4. Next, slide the finger with the object to be cut 36 forward, and fix the object to be cut 36 with both the object to be cut 36 and the first rear receiving base 26 sandwiched, and the first cut while closing the slimming I do. Next, the body is opened wide and the blade is advanced to advance the blade. At this time, the cut edge of the cut object 36 on the left side is fed along the guide surface 15 of the linear guide 16, and the blade is fed. The second cut is performed while lightly attaching the hand 36 to the workpiece 36 on the upward plane 14, and the third and subsequent cuts are similarly advanced. Thereby, the cut end of the cut object 36 after cutting becomes a straight line perpendicular to the side of the cut object 36. According to the present invention, in the case of cutting at a right angle to the side of the workpiece 36, which is frequently performed in the work of cutting the workpiece 36, there is no marking of the cutting line on the workpiece 36, or the cutting start point By being able to cut only by marking, compared to cutting while aiming at the cutting line, it can be cut easily and quickly, the bend of the cut edge is small, by utilizing the band-like part 37 of the first rear receiving base 26, Since the workpiece 36 can be easily set and fixed to the right angle guide 31, the efficiency of the cutting work can be increased.

  A description will be given of paper cutting performed in the production of scraps. First, right-angle cutting using the right-angle guide 31 is performed from the paper edge closest to the object to be cut, and then cutting is performed to a place slightly beyond the area to be cut by straight-line cutting using the straight-line guide 16. Next, the right angle guide 31 is brought into contact with the cut end, and the right angle cut is performed, and the straight line guide 16 is used to perform the straight line cut, so that the cut target range is cut slightly. The remaining two sides of the cutout target range are similarly cut to complete the cutout. According to this method, it is possible to easily perform cutting with good squareness and straightness.

  The usage of the scale 32 of the first cradle 24 will be described. By cutting after the left end of the workpiece 36 is aligned with the scale 32, the paper can be cut to a required length within the range of the attached scale 32. Further, when cutting in parallel to one side of the workpiece 36 that is not a right angle, the side of the workpiece 36 has the same value on both the first front receiving tray 25 and the first rear receiving tray 26. By matching with the scale 32, it can be cut in parallel. Also in this case, the cutting width of the workpiece 36 is limited to use within the range of the scale 32.

  Holding the handle of the heel 1 and pushing the cradle 22 forward with the other hand to detach the notch 21 of the cradle 22 from the locking tool 20, thereby removing the cradle 22 from the main body of the heel 1. Can do. If the upper and lower sides of the heel are reversed so that the linear guide 16 is positioned below in this state, the handle portion has a normal heel shape. In this state, it can be used in the same way as a normal bag, including curving.

DESCRIPTION OF SYMBOLS 1 鋏 2 Upper slim 3 Lower slim 4 Blade 5 Spindle 6 Peak 7 Lower slim inner surface 11 Upper slim handle 12 Lower slim handle 14 Upward flat surface 15 Guide surface 16 Linear guide 20 Locking tool 21 notch 22 cradle 23 base 24 first cradle 25 first front cradle 26 first rear cradle 27 second cradle 28 second front cradle 29 second rear cradle 31 right angle guide (stage)
33 Leverage point 34 Cutting point 35 Cutting point of object to be cut 36 Object to be cut 37 Band-shaped part

Claims (2)

  A pair of slimmings that are connected to each other so as to be pivotable about a support shaft. The upper side of the handle for the lower slime and an upward plane from the upward plane, and the outer direction of the lower slime A linear guide for guiding the object to be cut, and an outer side surface of the lower slime, the line of intersection of which is located in substantially the same plane as the inner side of the lower slime A first pedestal for receiving and supporting an object to be cut and extending outwardly from the base at a height of the lower slimming blade, and the support shaft of the first cradle A right angle guide for positioning the end of the object to be cut, wherein a step is provided on the upper surface of the side end, and the inner line of the step is substantially perpendicular to the inner surface of the lower slime. And further, from the base, passes through the lower slime and the lower part of the upper slime and extends outwardly of the upper slime, receiving and supporting the object to be cut. A height of the blade of the upper slime when the two slimmings are closed from the height of the approximate peak of the lower slimming. And the anti-slime side end of the slimming tip side end of the second cradle is substantially the height of the lower slimming blade. .   A belt-like portion along the right-angle guide is provided on the cradle of the right-angle guide portion of the first cradle, and has a width that allows a workpiece to be sandwiched between the thumb and the index finger from the rear of the right-angle guide. The bag according to claim 1.

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