JP2009172409A - Method for arranging orientation of thin stick material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for arranging stick materials (thin sticklike materials or thin stick materials) which are a prescribed number of straight needle-shaped extra-fine instruments in the same direction. <P>SOLUTION: The method for arranging an orientation of thin stick materials is to arrange the orientation of thin sticklike materials 11 each of which has a sharp tip 11a in one end and a blunt end 11b in the other end. In both sides in a longitudinal direction of the prescribed number of the thin sticklike materials 11 which are paralleled, elastic bodies 12 which have a degree of elasticity wherein the sharp tip 11a can pierce and the another blunt end 11b cannot pierce, are located. The thin sticklike materials 11 are sandwiched so that the elastic bodies 12 are made closer to one another. The elastic body 12 is pierced with the sharp tips 11a of the thin sticklike materials 11 by closeness of the elastic bodies 12, and then the elastic bodies 12 are separated mutually. The thin sticklike materials 11 which pierce the elastic body 12 are moved together with the both elastic bodies 12 to arrange their orientation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is an extremely thin rod-shaped material having one end formed as a sharp tip with a cutting edge and the other end formed as a blunt blunt end, and the direction of the thin rod-shaped material arranged in parallel with the directions of the tips separated. Relates to a method for aligning the same in the same direction.

  The surgical suture needle is formed as a sharp point at one end to pierce a living tissue, and the other end is formed as a blunt end with a hole for attaching a suture. . Depending on the tissue to be sutured, the suture needle has a round or rectangular cross section and one end is formed as a tip, but no cutting edge is formed. The cross section is a triangle or pentagon, and one end is formed as a point. In addition, there is provided a suturing needle in which a cutting edge having the apex as a vertex is formed. Such a suture needle is provided with a different thickness depending on the site to be sutured. The thinnest needle is about 0.025 mm, and the thickest is about 1.60 mm.

  In addition, a surgical or ophthalmic knife has a sharp cutting edge for piercing or incising a living tissue at one end, and the other end is formed as a blunt end for attaching a handle. Yes. Various types of knives are provided depending on the use site, usage method, etc., and an ophthalmic knife that performs microsurgery has a thickness of about 0.25 mm and a width of about 3.0 mm.

  As described above, the suturing needle or knife is configured as an extremely thin needle-like instrument (needle-like instrument) having one end formed as a pointed end and the other end formed as a blunt end. This needle-like instrument is manufactured by using a rod-like material (straight needle-like extra-fine instrument) obtained by cutting a wire such as a stainless steel wire, a steel wire, or a piano wire in accordance with the length of the target needle-like instrument. .

  For example, if the target needle-like instrument is a suture needle, one end side of the rod-shaped material is pressed to form a tapered end with a sharp end and a cross-section such as a circle, triangle, square, etc. A blind hole or spring hole for attaching a suture thread is formed on the end surface of the blunt end on the other side, and then a sharpened sharp edge or a cutting edge continuous to the sharp edge is formed by polishing the pressed part. Then, the intermediate material is configured, and thereafter, the intermediate material is curved to form a suture needle.

  Also, when the needle-like instrument is a knife, to press and flatten one end side of the rod-shaped material, and then polish and shape the blade part, and attach the handle to the other end part A predetermined processing is performed, and then a handle is attached to constitute a knife.

  In the process of manufacturing the needle-shaped instrument as described above, the rod-shaped material (straight needle-shaped ultrathin instrument) obtained by cutting the wire material corresponding to the length of the target needle-shaped instrument is a mere bar. There is no direction. However, when one end side of the rod-shaped material is processed, this material is given a directionality composed of a sharp end portion and a blunt end portion, and a directionality of a cross section in a square needle or the like. For example, pressing is performed by holding a bar-shaped material one by one, and after pressing, the bar-shaped material is released from the holding and falls to the periphery. For this reason, the direction of the bar-shaped material after press working is not aligned, sharp ends and blunt ends are mixed, and the cross-sectional orientation is not aligned.

  Since the process (bending process and polishing process) performed subsequent to the press work is performed on the end side of the bar-shaped material subjected to the press process and in a predetermined cross-sectional direction, it is necessary to align the directionality. . For this reason, the bar-shaped material after the press work which has fallen to the periphery of the press apparatus is gripped by tweezers or the like and aligned in the same direction and accommodated in the box-shaped transport tool. And the box-shaped conveyance tool which accommodated the rod-shaped material is moved to the predetermined | prescribed next process, and the process in this process is performed. In such a method, since the work of aligning rod-shaped materials mixed in the same direction after pressing and the like is monotonous and the thickness is extremely thin, carefulness is required, so workers are fatigued. There is a problem.

  In addition, there are a mixture of processing to hold a plurality of rod-shaped materials while maintaining a gap as in the polishing step, and polishing at the same time in this state, and processing to be performed for each bar-shaped material as in the bending step. Therefore, taking in and out the rod-shaped material accommodated in the box-shaped transport tool for each process is not easy for the work required for the setup for each process, so in the process performed for each bar-shaped material, A plurality of rod-shaped materials may be attached to an adhesive tape and transported while being held, or may be transported by being sandwiched between clips.

  As described above, the work of aligning rod-shaped materials with mixed directionality in the same direction is monotonous, and since the thickness is extremely thin, there is a problem that workers are fatigued.

  The objective of this invention is providing the method of aligning the rod-shaped material (thin-bar-shaped raw material or thin-bar-shaped raw material) used as the predetermined number of straight needle-shaped ultrafine instruments in the same direction.

  In order to solve the above problems, the method of aligning the thin rod-shaped material according to the present invention is a method of aligning the orientation of the thin rod-shaped material having a sharp end at one end and a blunt end at the other end, and is a predetermined number of parallel lines. On both sides in the longitudinal direction of the thin rod-shaped material, an elastic body having elasticity that can be pierced by the tip and not blunted by the other end is disposed, and the elastic bodies are brought close to each other. In this manner, the thin rod-shaped material is sandwiched between the elastic bodies, and after the elastic body approaches, the tip of the thin rod-shaped material is pierced through the elastic body, the elastic bodies are separated from each other, and the thin rod-shaped material pierced by the elastic body is removed. It is characterized by being moved together with the elastic bodies on both sides to align the directions.

  Another method for aligning thin rod-shaped materials is the orientation of thin rod-shaped materials having a pointed end at one end and a blunt end at the other end, and a predetermined length range from the pointed end to a triangular pyramid or triangular prism. And having the elasticity that the tip can be pierced and the blunt end of the other end is not pierced on both sides in the longitudinal direction of a predetermined number of thin rod-shaped materials arranged in parallel. An elastic body is arranged, the thin rod-shaped material is sandwiched so that the elastic bodies are brought close to each other, and the tip of the thin rod-shaped material is pierced through the elastic body by the approach of the elastic body, and then the elastic bodies are separated from each other. The thin rod-shaped material pierced by the elastic body is moved together with the elastic bodies on both sides, and then the thin rod-shaped material is removed from the elastic body, and then at least one end of the thin rod-shaped material is lifted. By turning it, a triangular pyramid or triangular prism section is formed. It is characterized in that to align the direction of one edge line.

  In the method of aligning the thin rod-shaped material according to the present invention, a straight needle-shaped ultrathin instrument (hereinafter referred to as “thin rod-shaped material”) is applied to an elastic body having such elasticity that the tip can be pierced and the blunt end cannot be pierced. Or the tip of a “thin rod-like material” can be pierced and held. Therefore, the thin rod-shaped materials held by the elastic body are aligned in the same direction.

  That is, an elastic body is arranged on both sides in the longitudinal direction of a predetermined number of thin rod-shaped materials arranged in parallel with the directions of the tips being separated, and the thin rod-shaped material is sandwiched so that the elastic bodies are brought close to each other. The tip of the rod-shaped material can be pierced and held by the elastic body. Then, after the tip of the thin rod-shaped material is pierced through the elastic body, the thin rod-shaped material moves together with the elastic body when the elastic bodies are separated from each other. Therefore, it is possible to align the direction of the thin rod-shaped material for each elastic body. Thus, the direction (direction) of a predetermined number of thin rod-shaped materials can be aligned by removing the thin rod-shaped materials having the same orientation for each elastic body from the elastic body.

  Further, in the method for aligning other thin rod-shaped materials according to the present invention, the thin rod-shaped material includes the direction of the cross section even when the predetermined length range from the tip portion is formed as a triangular pyramid portion or a triangular pyramid portion. Can be aligned in the same direction.

  That is, an elastic body is arranged on both sides in the longitudinal direction of a predetermined number of thin rod-shaped materials arranged in parallel with the directions of the tips being separated, and the thin rod-shaped material is sandwiched so that the elastic bodies are brought close to each other. The tip of the rod-shaped material can be pierced and held by the elastic body. Then, after the tip of the thin rod-shaped material is pierced through the elastic body, the thin rod-shaped material moves together with the elastic body when the elastic bodies are separated from each other. Therefore, it is possible to align the direction of the thin rod-shaped material for each elastic body. Thus, the direction (direction) of a predetermined number of thin rod-shaped materials can be aligned by removing the thin rod-shaped materials having the same orientation for each elastic body from the elastic body.

  Then, by supporting at least one end of the thin rod-shaped material whose direction (direction) is aligned, the thin rod-shaped material rotates so that one ridge line constituting the triangular pyramid portion or the triangular prism portion is positioned below, Thus, the direction of the triangular cross section can be made the same.

It is a figure explaining the procedure which inserts a raw material in the elastic body which concerns on a present Example, and aligns direction. It is a figure explaining the procedure which inserts a raw material in the holding member which concerns on a present Example, and comprises a holding body. It is a figure explaining the shape of the suture needle as an example of a needle-like instrument. It is a figure explaining the shape of the root canal treatment instrument and the ophthalmic knife as an example of a needle-shaped instrument.

  Hereinafter, the method for aligning the thin rod-shaped material according to the present invention will be described. The present invention relates to a method for aligning the direction of the pointed end and the blunt end and the cross-sectional direction in the same direction for a thin rod-shaped material formed as a sharp pointed end on one side and a blunted end on the other side. Is. In particular, the direction of the thin rod-shaped material is aligned and aligned at a predetermined interval with a jig or the like, and in this state, the thin rod-shaped material is inserted and held in the holding member to constitute a holding body, and the holding body is conveyed Thus, it is possible to rationally convey a predetermined number of thin rod-shaped materials.

  In the present invention, the function of the needle-like instrument manufactured by processing the thin rod-shaped material is not particularly limited. However, like a surgical needle, an ophthalmic knife, or a dental root canal treatment instrument, one end is formed as a sharp point and the other end is used to attach a suture. It is an instrument formed as a blunt blunt end whose end face is substantially perpendicular to the axis for forming a hole or for attaching a handle for manual operation or a handle for mounting on a chuck of a handpiece. preferable.

  As the material of the thin rod-shaped material, any material can be used as long as it can exhibit a hardness capable of piercing a living tissue or scraping a tooth and can satisfy a desired thickness of the thin rod-shaped material. Examples of materials that can exhibit such performance include stainless steel wire, steel wire, piano wire, and the like, and any of them can be preferably used.

  In particular, it is not preferable that rust is generated in the distribution process in medical instruments. For this reason, since there is no possibility that rust will generate | occur | produce, it is preferable to use austenitic stainless steel as a material. Since this austenitic stainless steel cannot be expected to be hardened by heat treatment, it is necessary to cause hardening by work hardening by performing cold drawing at a preset area reduction.

  Further, the holding member has a function of holding the thin rod-shaped material when the point of the thin rod-shaped material is inserted, and any member that can exhibit this function can be used. As materials capable of exhibiting such functions, there are synthetic resin foams and sponges having appropriate elasticity and shape-retaining properties, and any of them can be preferably used.

  Hereinafter, a preferred embodiment of a method for aligning thin rod-shaped materials according to the present invention will be described with reference to the drawings.

  First, prior to explaining the method of aligning the thin rod-shaped material according to the present embodiment, a typical example of the needle-like instrument targeted by the present invention will be described with reference to FIGS.

  3 (a) shows a suture needle having a substantially triangular cross section of the needle body 1, and two cutting edges 1c and one peak 1d are formed in a triangular pyramid shape over a predetermined length range with the apex 1a as a vertex. Has been. In addition, a blunt blunt end 1b in which a hole 2 is formed is formed at the other end. The needle body 1 of the suture needle is configured as a curved needle having a predetermined range curved from the pointed end 1a side. That is, the suture needle shown in the figure is configured as a needle-like instrument A having one end formed as a point 1a and the other end formed as a blunt end 1b.

  FIG. 2B shows a suture needle having a circular cross section over its entire length, a sharp point 1a is formed at one end of the needle body 1, and the other end is a hole for attaching a suture to the end surface. A blunt blunt end 1b formed with 2 is formed. The suture needle is configured as a curved needle in which the body of the needle body 1 is curved in a predetermined range from the pointed end 1a side. That is, the suture needle shown in the figure is configured as a needle-like instrument B having one end formed as a sharp tip 1a and the other end formed as a blunt end 1b.

  Each of the suturing needles constituting the needle-like instruments A and B is configured to be formed by forming a hole 2 in the end face on the blunt end 1b side and caulking the hole 2 through the end of the suture thread. However, the structure for attaching the suture is not limited to this configuration, and the end is processed into a flat shape to form a hole in the flat surface, and the suture is connected to the hole through the suture. There is also. Even in the latter structure, since a flat surface is formed at the end, this end is a blunt blunt end.

  FIG. 4 (a) shows a dental root canal treatment instrument, and the needle body 1 has a flat portion in a predetermined length range from the tip 1a, and the flat portion is set in advance. The working portion 3 is configured by being twisted with the twisted angle. A cutting edge 1e is formed in the rotating direction in the working unit 3. Further, the other end portion of the needle body 1 is formed as a blunt blunt end 1b inserted into the handle 4 held by the handpiece. The handle 4 is fixed to the needle body 1 with an adhesive or caulking while the blunt end 1b of the needle body 1 is inserted. In this way, the root canal treatment instrument is configured as a needle-like instrument C in which one end is formed as a point 1a and the other end is formed as a blunt end 1b.

  FIG. 2B shows an ophthalmic knife. The needle body 1 has a portion of a predetermined length range from the tip 1a to be flattened, and cutting edges 1f are formed on both sides of the flattened portion. Further, since a handle for manual operation (not shown) is fixed to the other end portion side of the needle body 1, the end portion is formed as a blunt blunt end 1b. That is, the knife shown in the figure is configured as a needle-like instrument D having one end formed as a point 1a and the other end formed as a blunt end 1b.

  Next, a case where the procedure for inserting the material 11 as a predetermined number of thin rod-like materials into the holding body with a certain interval and posture is applied to the needle-like instrument A having a triangular cross-section as a suture needle is shown in FIG. This will be described with reference to Figs. In the figure, the material 11 is the material of the needle-like instrument A, and corresponds to the needle-like instrument A or the needle body 1 in FIG. 3A, and the tip 11a corresponds to the tip 1a. The blunt end 11b corresponds to the blunt end 1b, and the triangular pyramid portion 11c corresponds to the two cutting edges 1c and one peak 1d, respectively.

  Fig.1 (a) has shown the raw material 11 of the needle-shaped instrument A which is a suture needle with a circular cross section. The material 11 is configured by cutting a material having a thickness corresponding to the specification of the target needle-like instrument A into a predetermined length. Therefore, the material 11 is a simple round bar-like material, and both end portions are constituted by end faces formed substantially at right angles.

  A large number of materials 11 are accommodated in a box-shaped transport tool, and are transported together with the transport tool to the pressing step. In the pressing step, the individual materials 11 are taken out from the box-shaped transport tool, and are pressed on one end side by a pressing device.

  As shown in FIG. 4B, the material 11 is formed with a triangular pyramid portion 11c in a predetermined length range with the tip portion 11a as a vertex by press working. Note that the shape formed by pressing may be a triangular prism or the like instead of a triangular pyramid. In the case of a triangular prism or the like, the tip portion 11a may be ground and sharpened before or after the press work so that the tip portion and the blunt end can be easily distinguished. Further, no press working is performed on the other end side, so that the end functions as a blunt end 11b. The pressed material 11 falls to the periphery of the press device in a state where the orientation is not controlled, and when the plurality of materials 11 are arranged, the tip end portion 11a, the blunt end 11b, and the cross-sectional direction are disjoint. It will be mixed in the state.

  Therefore, as shown in FIG. 5C, the tip 11a can be pierced on both sides in the longitudinal direction of the predetermined number of materials 11 arranged in parallel, and the blunt end 11b does not pierce. For example, an elastic body 12 such as hard rubber or urethane rubber is disposed, and the material 11 is sandwiched so that the elastic bodies 12 are close to each other. Due to the approach of the elastic body 12, the distal end portion 11 a of the material 11 is pierced and held by the elastic body 12.

  After the tip 11a of the material 11 is sufficiently pierced into the elastic body 12, as shown in FIG. 4D, when the elastic bodies 12 are separated from each other, the material in which the tip 11a is pierced into the elastic body 12 11 moves together with the elastic body 12. Therefore, it is possible to align the direction of the material 11 for each elastic body 12. In this way, by removing the material 11 whose direction is aligned for each elastic body 12 from the elastic body 12, it is possible to align the direction (direction) of a predetermined number of materials 11.

  By attaching the predetermined number of materials 11 whose directions are aligned as described above to the jig 13 as shown in FIG. 5E, the predetermined number of materials 11 are held at a preset interval and posture. Can be arranged. When the material 11 is attached to the jig 13, either the tip end 11a side or the blunt end 11b side may be attached, but it is preferable to consider the processing content in the next step. For example, when the next step is polishing of the tip portion 11a and the triangular pyramid portion 11c, it is preferable to place the blunt end 11b side on the jig 13 and fix it.

  In particular, when the material 11 is formed as a triangular pyramid portion 11c with a predetermined length range from the distal end portion 11a, the cross-sections need to be aligned in the same direction when a predetermined number of materials 11 are arranged. That is, the ridge lines constituting the triangular pyramid portion 11c must be in the same direction. Such a demand can be met by simultaneously supporting the blunt end 11b and the front end portion 11a of the predetermined number of materials 11 with a hand or a plate-like member, and applying a vibration. . Thus, by supporting the both ends 11a and 11b, the material 11 is an isosceles triangle whose cross section has an obtuse angle and an acute angle, that is, one ridge line constituting the triangular pyramid portion 11c. However, the obtuse angle part) rotates so that it is located below, and the cross-sectional direction becomes the same. Moreover, the protrusion length of the front-end | tip part 11a can be arrange | equalized by match | combining the longitudinal direction end part of a jig | tool, and the front-end | tip part 11a of the raw material 11, or the end part of the blunt end 11b.

  The configuration of the jig 13 is not particularly limited. However, it is preferable to have the main body 13a having a plurality of grooves that can receive the blunt end 11b side of the material 11 and have a predetermined interval.

  In particular, the jig 13 may be a chuck in a polishing process of a suture needle, a root canal treatment instrument, a knife, or the like by providing a fixing member 13b for pressing and fixing the material 11 received in the groove. By using both the jig 13 and the chuck in the polishing process, a predetermined number of materials 11 can be arranged in the same direction and at the same interval. Of course, the jig 13 may be used only for aligning the cross-sectional direction, and another chuck may be used in the polishing process or the like. In this case, after aligning the cross-sectional direction with the jig 13, it is temporarily fixed with a tape or the like and held by another chuck in the polishing process.

  By performing the polishing process with the jig 13 having the same cross-section in the same direction, the material 11 that has undergone the polishing process has the needle body 1 in the needle-like instrument A, the tip portion 11a has the tip 1a, and the triangular pyramid portion 11c. The two cutting blades 1c and the one peak 1d can be made to correspond to each other, and the blunt end 11b can be made to correspond to the blunt end 1b.

  After fixing a predetermined number of materials 11 to the jig 13 as described above, as shown in FIG. 2A, the holding member 20 is disposed so as to face the jig 13, and then held with the jig 13. By bringing the bodies 20 close to each other, the leading end portion 11a of the material 11 is pierced through the holding member 20. At this time, it is also possible to manage the insertion angle with respect to the holding member 20 by using a device dedicated to insertion and setting the jig and the holding body at a predetermined position.

  After the material 11 is inserted sufficiently deep into the holding member 20, the fixing of the material 11 by the jig 13 is released, and as shown in FIG. It is possible to hold it while maintaining a substantially constant interval and posture. That is, the holding body E can be configured.

  In the holding body E, when the material 11 is inserted, the material 11 can be pressed and held by the elasticity of the holding member 20. In addition, due to the shape retention characteristics of the holding member 20, the shape can be maintained even when a certain amount of load is applied, and a predetermined number of materials 11 are inserted and held while maintaining the posture of the inserted material 11. can do.

  For this reason, a plurality of holding bodies E configured by inserting a predetermined number of materials 11 into the holding member 20 are configured to hold a number of materials 11 without colliding with each other and being damaged, and at substantially constant intervals. It can be transported while maintaining its posture.

  In particular, when the holding body E is used in a process (for example, a bending process) in which a robot is disposed, handling by the robot can be performed easily and reliably, and smooth machining can be realized.

  Therefore, it is possible to transport the material 11 by transporting the holding body E configured by inserting and holding a predetermined number of the materials 11 in the holding member 20, and one holding body E can be independently transferred. By superimposing a plurality of holding bodies E in the thickness direction and transferring between the processes, a large number of materials 11 can be simultaneously transferred to the next process.

  For example, it is possible to form a cutting blade (not shown) by aligning the directionality with the jig 13 to form a cutting blade (not shown), and when the material 11 on which the cutting blade is formed is pierced through the holding member 20 In addition, since the cutting blade is sufficiently pierced with respect to the holding member 20, the adjacent materials 11 do not come into contact with each other, and therefore the cutting edge of the cutting blade is not impaired.

  Further, in this state, the holding body E holding the predetermined number of materials 11 at substantially constant intervals and maintaining a substantially constant posture is sucked by the suction member, gripped by the gripping member, and pressed by the pressing member. And it is possible to move by dropping along a dropping member, and rational conveyance of the raw material 11 between each process is realizable.

  Further, by transferring the holding body E holding the predetermined number of materials 11 in the order of the manufacturing process, in each step, the predetermined number of materials 11 are extracted from the holding body E and processed one by one, or a plurality of them are simultaneously processed. Can be processed. Accordingly, a predetermined number of materials 11 can be passed through necessary processes while maintaining a predetermined distance and posture without manual intervention, and rational conveyance can be realized.

  In particular, since a predetermined number of materials 11 are held in the same posture at regular intervals, when transported to a target processing step, a predetermined processing is performed using an automatic processing device such as a robot in the processing step. Since the position of each material 11 can be specified when performing, the removal by the robot and insertion after processing can be easily performed. In particular, in the bending process, the material 11 can be extracted from the holding body E by a robot or the like, held, and set on the bending frame while maintaining the posture and directionality of the material 11, so that the bending process can be performed uniformly without variation. It can be performed.

  In the above embodiment, the case of forming a triangular needle having a cutting edge has been described. However, the same holding body is also used in the case of a round needle that has no cutting edge and has a barrel section formed into a rectangle by pressing. By piercing through, the orientation / posture of the material 11 aligned by a predetermined method can be maintained.

  That is, the taper taper is processed in the previous process, and then the material 11 having a rounded cross section is aligned in a rectangular shape by an automatic press machine with the direction of the tip and the blunt end aligned, and then the posture facing the holding member 20 is 1 Each book is arranged and inserted into the holding member 20 at predetermined intervals. In order to adjust the posture of the material 11 held by the collet chuck at the stage of being press-formed into a rectangle, the two plate-like members positioned below the material 11 and opened and closed like petals, or the material 11 are grasped. It is possible to arrange the material 11 by holding it several times with a chuck member or the like that is inserted into the holding member 20. After adjusting the posture, the material 11 gripped by the chuck member is made to face the holding member 20 at a certain angle, and is inserted by approaching the holding member 20.

  By repeating the above operation, a predetermined number of materials 11 are inserted and held in the holding member 20 with substantially constant intervals and postures, whereby the holding body E is configured.

  When the holding body E is transferred to a bending process, for example, and each material 11 is subjected to curve forming, the bending material is held in order that the material 11 held by the holding body E maintains the interval and posture set in the jig 13. When the materials 11 are sequentially supplied to the substrate, it is possible to realize reliable chucking by sequentially controlling the position of the chuck corresponding to the holding interval.

  The orientation aligning method configured as described above is advantageous in that it can reduce the fatigue of workers when an extremely thin rod-shaped material is used as a raw material.

AD needle device E holder 1 needle 1a point 1b blunt end 1c cutting edge 1d peak 1e, 1f cutting edge 2 hole 3 working part 4 handle 11 material 11a tip part 11b blunt end 11c triangular pyramid part 12 elastic body 13 Jig 13a Body 13b Fixing member 20 Holding member

Claims (2)

  This is a method of aligning the orientation of a thin rod-shaped material having a pointed end at one end and a blunt end at the other end, and the pointed tip can be pierced on both sides in the longitudinal direction of a predetermined number of the rod-shaped materials arranged in parallel. An elastic body having elasticity that does not allow the blunt end of the other end to pierce is disposed, and the thin rod-shaped material is sandwiched between the elastic bodies so that the elastic bodies are brought close to each other. The thin rod-shaped material is characterized in that after the pierced end of the elastic body is pierced through the elastic body, the elastic bodies are separated from each other, and the thin rod-shaped material pierced by the elastic body is moved together with the elastic bodies on both sides to align the directions. Orientation method.   A method of aligning the orientation of a thin rod-shaped material having a pointed end at one end and a blunt end at the other end and having a predetermined length range from the pointed end in a triangular pyramid shape or a triangular prism shape, On both sides in the longitudinal direction of the thin rod-shaped material, an elastic body having elasticity that can be pierced by the tip and not blunted by the other end is disposed, and the elastic bodies are brought close to each other. In this way, the thin rod-shaped material is inserted into the elastic body after the thin rod-shaped material is sandwiched and the point of the thin rod-shaped material is pierced through the elastic body by approaching the elastic body. Are moved together with the elastic bodies on both sides, and then the thin rod-shaped material is detached from the elastic bodies, and then at least one end of the thin rod-shaped material is lifted and rotated to form a triangular pyramid or triangular prism shape. It is characterized by aligning the direction of one ridge line constituting the cross section Direction alignment method of that thin rod-like material.

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