JP5934050B2 - Holder, holder unit and scribing device - Google Patents

Description

  The present invention relates to a holder for holding a scribing wheel for forming a scribe line on a brittle material substrate such as a glass substrate, a ceramic substrate, or a silicon substrate, a holder unit including the scribing wheel, and a scribing device including the holder unit. About.

  Conventionally, in the manufacturing process of flat display panels such as liquid crystal display panels and organic electroluminescence (EL) panels, solar cells, etc., a step of dividing a brittle material substrate such as a mother glass substrate is provided. In these cutting processes, the cutter wheel is rolled on the surface of the brittle substrate while a load corresponding to various conditions such as the material and thickness of the brittle substrate is applied to the cutter wheel to form a scribe line. By applying a predetermined force, the brittle substrate is divided along the scribe line to manufacture individual panels and various substrates.

  Here, a holder unit including a cutter wheel disclosed in Patent Document 1 below will be described with reference to FIGS. 13 and 14. 13 is a front view of a holder unit disclosed in Patent Document 1 below, and FIG. 14 is a partial cross-sectional view taken along the line XIV-XIV in FIG.

  The holder unit 250 includes a holder 251 and a scribing wheel 252, and the scribing wheel 252 is rotatably held on the lower end side of the holder 251. The holder 251 is a rectangular parallelepiped member whose lower part is formed in a triangular shape, and has a through hole 253 for fixing the holder 251 to the upper part. A holder groove 254 (see FIG. 14) is formed below the holder 251 so as to open a triangular lower portion of the holder 251, and support portions 255 and 256 are formed by the triangular portions sandwiching the holder groove 254. Yes. The opposing surfaces of the support portions 255 and 256 of the holder 251 are formed substantially parallel to each other, and the interval between the holder grooves 254 is slightly larger than the width of the scribing wheel 252. For example, the width w of the holder groove 254 of the holder 251 for holding the scribing wheel 252 having a width d of 0.65 mm is, for example, about 0.67 mm.

  Pin holes 257 and 258 that pass through the support portions 255 and 256, respectively, are formed coaxially on the lower ends of the left and right support portions 255 and 256. The pin holes 257 and 258 intersect the holder groove 254 perpendicularly and are circular through holes that hold the pins 259 of the scribing wheel 252. Above these pin holes 257 and 258, a gap adjusting hole 260 is formed having a small inner diameter on the holder groove 254 side and a large outer diameter on the support groove 255 side, and a screw groove coaxial therewith on the support hole 255 side. An interval adjusting screw 261 is attached to the interval adjusting hole 260. The interval adjusting screw 261 finely adjusts the interval w of the holder groove 254. In FIG. 14, the pin 259 and the interval adjusting screw 261 are shown not by a cross section but by an outline so that the configuration can be easily understood.

  Further, a shaft pressing cover 262 is attached to the right side of the interval adjusting hole 260 of the support portion 255 by a fixing screw 263, and similarly, the shaft pressing cover 264 is fixed to the left side of the interval adjusting hole 260 of the supporting portion 256. It is attached by H.265. The shaft pressing covers 262 and 264 hold the pins 259 in the pin holes 257 and 258 so that the pins 259 do not fall off. As shown in FIG. 13, the shaft pressing covers 262 and 264 have a washer shape with one end protruding.

  The scribing wheel 252 is a disk-shaped member made of metal such as cemented carbide or sintered diamond and having a thickness d of about 0.65 mm, for example, and has a through hole in the center. The scribing wheel 252 has a V-shaped blade with a vertical cross section that forms a ridge line along the outer peripheral portion as disclosed in, for example, Patent Document 2 below. The inclined surfaces on both sides of the ridge line usually intersect with each other at an angle of 90 to 165 ° to form a ridge line. The pin 259 is a cylindrical member made of, for example, a metal such as cemented carbide or sintered diamond, and has one end having a pointed shape.

  The assembly of the holder unit 250 is performed as follows. First, as shown in FIG. 14, the interval adjusting screw 261 is inserted from the interval adjusting hole 260 and engaged with the screw groove of the interval adjusting hole 260. At this time, the interval adjusting screw 261 is not tightened. Next, the shaft pressing cover 262 is attached with the fixing screw 263 from the support portion 255 side, and one end of the pin hole 257 is closed. Next, the scribing wheel 252 is inserted and held in the holder groove 254, and the pin 259 is inserted from the pointed portion into the pin hole 258, the through hole of the scribing wheel 252, and the pin hole 257. The pin 259 is inserted until the pin-shaped portion of the pin 259 contacts the shaft pressing cover 262 in the vicinity of one opening of the pin hole 257, and the shaft pressing cover 264 is fixed with the fixing screw 265 as shown in FIG. The left end of the pin hole 258 is closed by screwing. Thereby, the pin 259 does not fall out of the pin holes 257 and 258, and the scribing wheel 252 is rotatably held by the pin 259.

  At this time, since the clearance between the holder groove 254 and the scribing wheel 252 of the holder unit 250 may vary, the interval is adjusted by the interval adjusting screw 261 inserted into the interval adjusting hole 260. The adjustment of the interval adjusting screw 261 can be set immediately before the rotation resistance starts increasing by gradually tightening the interval adjusting screw 261 while scribing, for example. Further, the width w of the holder groove in the product state and the thickness d of the scribing wheel 252 are measured in advance, and the holder unit 250 is placed on a flat surface so as to have a desired width, and is tightened with screws from the top to obtain a predetermined dimension. Such a setting is also performed. In addition, it is possible to set a desired clearance by tightening the distance adjusting screw 261 to a position where the tightening can be maximized with the scribing wheel 252 attached, and returning a predetermined angle or a predetermined number of rotations.

  Thus, the clearance can be set to an optimum value, for example, an interval of 2 μm. If the brittle substrate such as a glass substrate is scribed using the holder unit 250 in this state, the position of the scribing wheel 252 in the holder groove 254 is stabilized, so that there is almost no left-right shaking with respect to the traveling direction of the scribing wheel 252. This makes it possible to improve the linearity of the scribe line when scribing.

JP 2011-093186 A Japanese Patent No. 3074143

  According to the holder unit 250 disclosed in Patent Document 1, the holding position of the scribing wheel 252 is stabilized, and a scribe line can be formed on a brittle material substrate such as a glass plate at high speed and with high accuracy. There is an effect. However, in this holder unit 250, since the contact area between the side wall surface of the scribing wheel 252 and the support portions 255, 256 of the holder 251 in the holder groove 254 is large, for example, the cullet generated when the glass substrate is scribed is scribed. It is caught between the side wall surface of the wheel 252 and the support portions 255 and 256 of the holder 251, and the scribed cullet tends to cause a rotation failure of the scribing wheel 252.

  In addition, when the amount of cullet caught between the side wall surface of the scribing wheel 252 and the support portions 255 and 256 of the holder 251 becomes large, the rotational property of the scribing wheel 252 is further deteriorated, and the cutting edge moves the surface of the glass substrate during scribing. Since it slips, there is a concern that the blade edge life may be shortened. In addition, since the contact area between the support portions 255 and 256 of the holder 251 and the pin 259 is large, the frictional resistance is large, and the pin 259 may or may not rotate during scribing. In some cases, the cutting load becomes non-uniform so that the glass end face strength decreases and the glass breaking strength varies.

  The present invention has been made to solve the above-described problems of the prior art, and it is possible to physically reduce the contact area between the side wall surface of the scribing wheel and the support portion of the holder so that the scribing wheel is physically removed. A scribe line that makes it difficult for the cullet to be caught between the side wall surface and the support portion of the holder, stabilizes the position in the holder groove of the scribing wheel, and suppresses and scribes the left and right shakes in the traveling direction of the scribing wheel. An object of the present invention is to provide a holder and a holder unit in which adverse effects on the linearity of the sheet are suppressed.

  Another object of the present invention is to provide a holder and a holder unit having a configuration in which the frictional resistance between the pin and the support portion of the holder is small and the pin is easy to rotate.

  In order to achieve the above object, a holder according to the present invention is a disc-shaped scribing wheel in which a through-hole is formed at the center and a blade having a V-shaped vertical cross section is formed along the outer periphery. In a holder for rotatably holding by a pin rotatably inserted into a through hole of the wheel, the holder is formed by a holder groove that holds the scribing wheel rotatably inside, and the holder groove A pair of support portions, and a pair of pin holes formed coaxially with each of the pair of support portions, into which the pins are inserted, and the holder groove is a narrow portion into which a part of the scribing wheel is inserted The pair of pin holes are formed of a width portion and a wide width portion wider than the narrow width portion formed on the cut end side of the holder. Wherein the of being formed at positions corresponding to the wide portion.

  In the holder of the present invention, the side wall surface of the scribing wheel does not contact the support portion of the holder in the wide portion of the holder groove formed on the cut end side of the pin. Therefore, according to the holder of the present invention, the contact area between the side wall surface of the scribing wheel inserted into the narrow portion of the holder groove and the support portion of the holder is smaller than in the case of the conventional holder. The frictional resistance between the scribing wheel and the support portion of the holder is reduced, and the scribing wheel is easily rotated.

  In addition, normally, at least one of the pair of pin holes formed in the pair of support portions is formed so as to penetrate the support portion. However, in the holder of the present invention, the pins are inside the pin holes of the support portions only at both ends. It is supported by. Therefore, in the holder of the present invention, the contact area between the pin and the support portion of the holder in the pin hole is also smaller than in the case of the conventional holder unit. The frictional resistance is also reduced, and the pin rotation is improved. In addition, in the holder of the present invention, the pair of pin holes respectively formed in the pair of support parts are formed at positions corresponding to the wide part of the holder groove, so that the pin groove is formed around the pin in the wide part of the holder groove. Since a space is created, cullet is generated at the time of scribing, and even if this cullet enters the narrow part of the holder groove, it is easily discharged.

  For this reason, according to the holder of the present invention, the scribing wheel and the pin can be rotated at the time of scribing. Therefore, the scribing wheel blade tip does not easily slide on the surface of the scribe substrate during scribing, and the blade tip life is increased. At the same time, a decrease in end face strength of the scribe substrate after scribing and variations in breaking strength are suppressed.

  In the holder of the present invention, it is preferable that the pair of support portions are formed in a stepped shape between the narrow portion and the wide portion of the holder groove.

  If the holder groove is formed in a stepped shape, the opposing inner surfaces of the support portions of the holder are easily parallel to each other, so that the linearity during scribing is good.

  In the holder of the present invention, the narrow portion of the holder groove may be formed on the side opposite to the cut end side with respect to the axis of the pin.

  In the holder of the present invention, the side opposite to the cutting end side of the scribing wheel with respect to the pin shaft is located in the narrow portion of the holder groove. Therefore, according to the holder of the present invention, since a space is generated around the pin in the wide portion of the holder groove on the cut end side of the holder, the cullet is difficult to enter during scribing, and the cullet is generated during scribing. Even if it enters the narrow part of the holder groove, it is easily discharged.

  In the holder of the present invention, the narrow portion of the holder groove may be formed on the side opposite to the cut end side and one of the left and right sides with respect to the axis of the pin.

  In the holder of the present invention, one of the left and right sides opposite to the cutting end side of the scribing wheel with respect to the pin axis is located in the narrow portion of the holder groove, At least one is located in the wide part of the holder groove. Therefore, according to the holder of the present invention, unlike the case where the width of the holder groove is simply widened to facilitate the discharge of the cullet, the scribing wheel blade tip is less shaken and the meandering during the formation of the scribe line is suppressed. The

  In the holder of the present invention, the narrow portion of the holder groove may be formed on the cut end side with respect to the axis of the pin.

  In the holder of the present invention, the narrow part of the holder groove and the wide part of the support part are provided on the cutting end side of the holder with respect to the pin shaft, and the wide part of the holder groove is provided on the side opposite to the cutting end side. ing. Therefore, according to the holder of the present invention, the frictional resistance between the pin in the pin hole and the support portion of the holder is reduced, and the pin rotation is also improved. In addition, when exchanging the scribing wheel, the scribing wheel can be exchanged while holding the scribing wheel in the wide portion of the support portion, and the exchanging of the wheel becomes easy.

  Further, in the holder of the present invention, when at least one of the pair of pin holes of the pair of support portions passes through the support portion, the outer surface on the side facing the holder groove of the support portion through which the pin hole passes is provided. The presser cover which closes the pin hole which penetrated is arranged, and the presser cover may be fixed to the holder by an adjusting screw at a position opposite to the cut end side of the holder.

  According to the holder of the present invention, it is possible to make it difficult to remove the pin from the pin hole with a simple configuration.

  In order to achieve the above object, the holder unit of the present invention is a disc-shaped scribing wheel having a through hole formed in the center and a blade having a V-shaped vertical cross section along the outer periphery. A holder for rotatably holding the scribing wheel, and the holder includes a pair of support portions formed by holder grooves, and a pair of pin holes formed coaxially with the pair of support portions, respectively. And a pin that is rotatably inserted into the pair of pin holes and the through hole of the scribing wheel, and that rotatably holds the scribing wheel in the holder groove, and the holder groove of the scribing wheel A narrow part into which a part is inserted and a wide part wider than the narrow part formed on the cut end side of the holder. , The pair of pin holes is characterized in that it is formed at a position corresponding to the wide portion of the holder groove.

  In the holder unit of the present invention, the side wall surface of the scribing wheel does not contact the support portion of the holder at the wide portion of the holder groove formed on the cut end side of the pin. Therefore, according to the holder unit of the present invention, the contact area between the side wall surface of the scribing wheel inserted into the narrow portion of the holder groove and the support portion of the holder is smaller than in the case of the conventional holder unit. Therefore, the frictional resistance between the scribing wheel and the support portion of the holder is reduced, and the scribing wheel is easily rotated.

  In the holder unit of the present invention, the pair of pin holes formed in the pair of support portions are usually formed so that at least one of the pin holes penetrates the support portion. It is supported in the pin hole. Therefore, in the holder unit of the present invention, the contact area between the pin and the support portion of the holder in the pin hole is also smaller than in the case of the conventional holder unit. The frictional resistance of the pin is also reduced, and the pin rotation is improved. In addition, in the holder unit of the present invention, the pair of pin holes respectively formed in the pair of support parts are formed at positions corresponding to the wide part of the holder groove, so that the periphery of the pin in the wide part of the holder groove Therefore, even if cullet is generated at the time of scribing and this cullet enters the narrow part of the holder groove, it is easily discharged.

  For this reason, according to the holder unit of the present invention, the scribing wheel and the pin have excellent rotational performance during scribing, so that it is difficult for the scribing wheel blade tip to slide on the surface of the scribe substrate during scribing, and the blade tip life is increased. In addition, a decrease in end face strength of the scribe substrate after scribing and variations in breaking strength are suppressed.

  In the holder unit of the present invention, the scribing wheel may have a V-shaped blade having a vertical cross-sectional shape over the entire circumference along the circumference of the disc-shaped wheel, or the disc-shaped wheel. A V-shaped blade having a vertical cross-sectional shape is formed along the circumference of the groove, and a groove or a protrusion having a certain depth is formed at a constant pitch in a direction intersecting the V-shaped blade. (See Patent Document 2 above).

  In the holder unit of the present invention, it is preferable that the pair of support portions are formed in a step shape between the narrow portion and the wide portion of the holder groove.

  When the holder groove is formed in a stepped shape, the opposing inner surfaces of the support portions of the holder are easily parallel to each other, so that the linearity during scribing is good and the volume of the space formed around the pin is reduced. This makes it easier to miniaturize the holder unit.

  In the holder unit of the present invention, the narrow portion of the holder groove may be formed on the side opposite to the cut end side with respect to the axis of the pin.

  In the holder of the present invention, the side opposite to the cutting end side of the scribing wheel with respect to the pin shaft is located in the narrow portion of the holder groove. Therefore, according to the holder unit of the present invention, since a space is generated around the pin in the wide portion of the holder groove on the cut end side of the holder, the cullet is difficult to enter during scribing, and the cullet is generated during scribing. Even if it enters the narrow part of the holder groove, it is easily discharged.

  In the holder unit of the present invention, the narrow portion of the holder groove may be formed on the side opposite to the cutting end side and one of the left and right sides with respect to the axis of the pin. .

  In the holder unit of the present invention, the side opposite to the cutting end side of the scribing wheel and one of the left and right sides of the pin shaft are located within the narrow width portion of the holder groove, and the other of the left and right sides is the holder groove. Located in the wide part. Therefore, according to the holder unit of the present invention, the vibration of the cutting edge of the scribing wheel is reduced, and the meandering at the time of forming the scribe line is suppressed.

  In the holder unit of the present invention, the narrow portion of the holder groove may be formed on the cut end side with respect to the axis of the pin.

  In the holder unit of the present invention, with respect to the pin shaft, the holder groove is provided with a narrow portion of the holder groove and a wide portion of the support portion, and the holder groove is provided with a wide portion of the holder groove on the side opposite to the cut end side. It has been. Therefore, according to the holder unit of the present invention, the frictional resistance between the pin and the support portion of the holder in the pin hole is reduced, and the pin rotation is also improved. In addition, when exchanging the scribing wheel, the scribing wheel can be exchanged while holding the scribing wheel in the wide portion of the support portion, and the exchanging of the wheel becomes easy.

  In the holder unit of the present invention, a pressing cover that closes the pair of pin holes is disposed on the outer surface of the pair of support portions on the side facing the holder groove, and the pressing covers are respectively It is good also as what is being fixed to the said holder with the adjustment screw in the position on the opposite side to the cutting | disconnection end side of a holder.

  According to the holder unit of the present invention, it is possible to make it difficult to remove the pin from the pin hole with a simple configuration, and to change the tightening degree of the adjusting screw, thereby causing a slight deformation in the support portion of the holder, and the scribing wheel. The clearance between the side wall surface and the inner side surface of the support portion can be finely adjusted.

  The scribing apparatus of the present invention may include a scribing head to which the above holder unit is attached.

  The scribing apparatus of the present invention can provide a scribing apparatus that exhibits the above effects.

  In the scribing apparatus of the present invention, the holder unit may be detachably attached via a holder joint.

  In the scribing apparatus of the present invention, since the holder unit is attached to the scribe head via the holder joint, when replacing the scribing wheel, the entire holder unit can be replaced, so that the scribing wheel can be easily replaced. Can be done.

3 is a perspective view of a holder unit according to Embodiment 1. FIG. 2A is a front view of the holder unit of FIG. 1, and FIG. 2B is an enlarged view of the IIB portion of FIG. 2A. It is a perspective view of the holder unit of Embodiment 2. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. It is a perspective view of the holder unit of Embodiment 3. 6A is a front view of the holder unit of FIG. 5, and FIG. 6B is an enlarged view of a VIB portion of FIG. 6A. It is the schematic of a scribe apparatus. It is a front view of the holder joint with which the holder unit was attached. It is a perspective view of the holder unit of Embodiment 4. It is sectional drawing of the holder unit of Embodiment 4. It is the perspective view and sectional drawing of the holder unit of Embodiment 5. It is the perspective view and sectional drawing of the holder unit of Embodiment 6. It is a front view of the holder unit of a prior art example. It is sectional drawing along the XIV-XIV line | wire of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below shows an example of a scribing device, a holder unit, and a holder for embodying the technical idea of the present invention, and the present invention is specified to the scribing device, the holder unit, and the holder. It is not intended that the invention be applicable to other embodiments falling within the scope of the claims.

[Embodiment 1]
A holder 11 and a holder unit 10 according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 is a perspective view of the holder unit of Embodiment 1, FIG. 2A is a front view of the holder unit of FIG. 1, and FIG. 2B is an enlarged view of the IIB portion of FIG. 2A.

  As in the case of the conventional scribing wheel shown in FIGS. 7 and 8, the holder unit 10 according to the first embodiment includes a holder 11 and a scribing wheel 12, and the scribing wheel 12 is provided at the lower end of the holder 11. It is held rotatably. The holder 11 is a rectangular parallelepiped member having a triangular shape on the lower side, and has a through hole 13 for fixing the holder 11 on the upper part. The holder 11 is used to form a scribe line by bringing the scribing wheel 12 into contact with the member to be scribed, and in the following, the side of the holder 11 in contact with the member to be scribed (cut end side) ) Is called “lower” and the other side is called “up”.

  The scribing wheel 12 is a disk-shaped member made of, for example, sintered diamond and having a thickness d of about 0.65 mm, and has a through hole in the center. In addition, the scribing wheel 12 has a V-shaped blade that forms a ridge line along the outer peripheral portion, as in the conventional example. The inclined surfaces on both sides of the ridge line usually intersect with each other at an angle of 90 to 165 °, and the ridge line is formed by these inclined surfaces.

  Below the holder 11, a holder groove 14 is formed so as to open the triangular lower side of the holder 11, and support portions 15 and 16 are formed by the triangular portions sandwiching the holder groove 14. And the holder groove | channel 14 consists of the narrow part 14a in which a part above the scribing wheel 12 is inserted, and the wide part 14b formed wider than this narrow part 14a. Therefore, the pair of support portions 15 and 16 include wide portions 15 a and 16 a that face the narrow portion 14 a of the holder groove 14, and narrow portions 15 b and 16 b that face the wide portion 14 b of the holder groove 14, respectively. . In addition, between the wide parts 15a and 16a and the narrow parts 15b and 16b in the support parts 15 and 16 of the holder 11, it forms in level | step difference.

  The opposing surfaces of the support portions 15 and 16 of the holder 11, that is, the opposing surfaces of the wide width portions 15a and 16a and the opposing surfaces of the narrow width portions 15b and 16b are both formed in parallel. And the pin holes 17 and 18 which penetrate each are formed in the narrow width parts 15b and 16b in the support parts 15 and 16 of the holder 11 coaxially. The pin holes 17 and 18 intersect with the holder groove 14 perpendicularly and are circular through holes that hold the pins 19 of the scribing wheel 12.

  In the holder unit 10 of the first embodiment, the pin 19 does not come into contact with the through holes and the pin holes 17 and 18 of the scribing wheel 12 and the wide portions 15 a and 16 a of the support portions 15 and 16 of the holder 11. Is attached. Therefore, a gap 20 is formed between the lower side of the wide portions 15 a and 16 a of the support portions 15 and 16 of the holder 11 and the pin 19. Note that the pin 19 is a cylindrical member formed of, for example, a metal such as cemented carbide or sintered diamond, and one end has a pointed shape.

  The interval w1 of the narrow portion 14a of the holder groove 14 is set to be slightly larger than the width of the scribing wheel 12. The width d of the scribing wheel 12 is about 0.65 mm, for example, and the interval w1 of the narrow width portion 14a of the holder groove 14 is about 0.67 mm, for example. Further, the interval w2 of the wide width portion 14b of the holder groove 14 is arbitrary as long as it is wider than the interval w1 of the narrow width portion 14, but the pin holes 17 formed in the narrow width portions 15b and 16b of the support portions 15 and 16. In order to reduce the friction during rotation of the pin 19 within the pin 18, the pin 19 is supported only at both ends, and the length of the portion where the pin 19 is located in the pin holes 17 and 18 is It is necessary to make it shorter, and it is preferable that the distance is not less than twice the interval w1 of the narrow width portion 14a of the holder groove 14.

  However, if w2 is increased too much, the widths of the narrow portions 15b and 16b of the support portions 15 and 16 of the holder 11 become narrow, so that the narrow portions 15b and 16b may be bent by a load applied during scribing. The pin 19 is supported at both ends, and the pin 19 itself may be bent. Therefore, the widths of the narrow portions 15b and 16b of the support portions 15 and 16 of the holder 11 are set to the holder. It is preferable to be about 1/3 of the wide portions 15a, 16a of the 11 support portions 15, 16. In addition, the gap 20 formed between the lower side of the wide portions 15a and 16a of the support portions 15 and 16 of the holder 11 and the pins 19 is arbitrary, but the smaller one is required to reduce the size of the holder unit 10. Is good.

  Further, in the holder unit 10 of the first embodiment, both end portions of the pin holes 17 and 18 formed in the wide portions 15a and 16a of the support portions 15 and 16 of the holder 11 are closed by pressing covers 22 and 23, respectively. Yes. For example, as shown in FIG. 1, these presser covers 22 and 23 have a washer shape with one end protruding, and each is fixed to the outer surface of the holder 11 by adjusting screws 24 and 25 above the holder 11. Has been.

  The assembly of the holder unit 10 is performed as follows. First, the pressing cover 22 is attached from the support portion 15 side with the adjusting screw 24, and the outside of the pin hole 17 is closed. Next, a part of the scribing wheel 12 is inserted and held in the narrow portion 14 a of the holder groove 14, and the pin 19 is inserted from the pointed portion into the pin hole 18, the through hole of the scribing wheel 12 and the pin hole 17. To do. The pin 19 is inserted until the pointed portion of the pin 19 comes into contact with the pressing cover 22 near one opening of the pin hole 17, and then the pressing cover 23 is screwed with the adjusting screw 25 from the support portion 16 side. Close the outside of the pin hole 18. As a result, the pin 19 does not fall out of the pin holes 17 and 18, and the scribing wheel 12 is rotatably held by the pin 19.

  If the holder unit 10 in this state is used to scribe a brittle substrate such as a glass substrate, the position of the scribing wheel 12 is stabilized in the narrow width portion 14a of the holder groove 14, so Almost disappears, and the linearity of the scribe line when scribed can be improved. In addition, even if a cullet is generated at the time of scribing and this cullet enters between the narrow portion 14a of the holder groove 14 and the scribing wheel 12, the wide portions 15a and 16a of the support portions 15 and 16 of the holder 11 Since the gap 20 formed between the lower side and the pin 19 and the space formed between the pin 19 and the brittle substrate are easily discharged, the rotability of the scribing wheel 12 is impaired. Is suppressed.

  For this reason, according to the holder unit 10 of the first embodiment, the scribing wheel 12 and the pin 19 have good rotational performance during scribing, and therefore the phenomenon that the cutting edge of the scribing wheel 12 slips on the surface of the substrate to be scribed during scribing hardly occurs. As a result, the cutting edge life is increased and the reduction in the end face strength of the substrate to be scribed after scribing and the variation in breaking strength are suppressed.

  In addition, in the holder unit 10 of Embodiment 1, although the narrow width part 14a of the holder groove | channel 14 was shown in the upper part of the scribing wheel 12, the part on the right and left sides was inserted in drawing. Of course, it may be formed. In any case, the cullet generated at the time of scribing does not easily enter the narrow width portion 14a of the holder groove 14, and the scribing wheel 12 and the pin 19 have good rotation.

  Further, in the holder of the first embodiment, the opposing surfaces of the support portions 15 and 16 of the holder 11, that is, the opposing surfaces of the wide portions 15a and 16a and the opposing surfaces of the narrow portions 15b and 16b are as follows. Both are formed in parallel, but the opposing surfaces of the narrow portions 15b and 16b may not be parallel if the opposing surfaces of the wide portions 15a and 16a are formed in parallel. As long as the opposing surfaces of the wide portions 15a and 16a of the support portions 15 and 16 that the scribing wheel 12 contacts are parallel to each other, the position of the scribing wheel 12 can be stabilized in the narrow portion 14a of the holder groove 14. Because.

  Furthermore, in the holder according to the first embodiment, pin holes 17 and 18 that pass through the narrow portions 15b and 16b of the support portions 15 and 16 of the holder 11 are formed coaxially. Although the pins 19 are held from both sides by using the pressing covers 22 and 23, the diameter of one pin hole may be narrowed on the outer peripheral side of the support portion to hold the pins. Furthermore, as long as the pin holes 17 and 18 are formed coaxially, only one of the narrow portions 15b and 16b may be penetrated. In this case, it is only necessary that the pressing cover is provided only on the outer surface of the support part in which the diameter of the pin hole is not narrowed or the support part provided with the penetrating pin hole.

[Embodiment 2]
Next, the holder and holder unit of Embodiment 2 will be described with reference to FIGS. 3 is a perspective view of the holder unit according to the second embodiment, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3 and 4, the same reference numerals are assigned to the same components as those of the holder unit 10 of the first embodiment, and detailed description thereof is omitted.

  The configuration of the holder 11A and the holder unit 10A according to the second embodiment is different from that of the holder 11 and the holder unit 10 according to the first embodiment in that the configuration of the narrow width portion 14a and the wide width portion 14b of the holder groove 14 and the support portion 15 associated therewith. , 16 wide portions 15a, 16a and narrow portions 15b, 16b. That is, in the holder 11A and the holder unit 10A of the second embodiment, the narrow portion 14a of the holder groove 14 is formed so that a part above the scribing wheel 12 and a part on the right side in the drawing are inserted. Accordingly, wide portions 15a and 16a of the support portions 15 and 16 are formed above the scribing wheel 12 and on the right side in the drawing.

  The wide portion 14b of the holder groove 14 is formed on the left side in the drawing of the scribing wheel 12, and accordingly, the narrow portions 15b and 16b of the support portions 15 and 16 are formed on the left side in the drawing of the scribing wheel 12. Has been. Further, a step is formed between the wide portions 15a and 16a and the narrow portions 15b and 16b in the support portions 15 and 16 of the holder 11A.

  Also in this case, the opposing surfaces of the support portions 15 and 16 of the holder 11A, that is, the opposing surfaces of the wide portions 15a and 16a and the opposing surfaces of the narrow portions 15b and 16b are formed in parallel. ing. The narrow portions 15b and 16b of the support portions 15 and 16 of the holder 11A are coaxially formed with pin holes (not shown) penetrating the holders 11A and the pins 19 are formed on the support portions 15 and 16 of the holder 11A. It is attached so as not to contact the wide portions 15a and 16a. Therefore, a gap 20 is formed between the lower side of the wide portions 15 a and 16 a of the support portions 15 and 16 of the holder 11 </ b> A and the pin 19.

  According to the holder 11A and the holder unit 10A of the second embodiment having such a configuration, the wide portions 15a and 16a of the scribing wheel 12 and the support portions 15 and 16 are slightly different from those of the holder 11 and the holder unit 10 of the first embodiment. The frictional resistance is slightly increased because the contact area between the two is increased, but except for this point, substantially the same operational effect can be obtained, and the vibration of the cutting edge of the scribing wheel 12 is reduced. Therefore, meandering during the formation of the scribe line is suppressed.

  In the holder unit 10A of the second embodiment, an example in which the narrow width portion 14a of the holder groove 14 is formed so that not only a part above the scribing wheel 12 but also a part on the right side in the drawing is inserted. However, it is a matter of course that a part on the left side in the drawing may be inserted. In any case, when the scribe line is formed using the holder unit 10A of the second embodiment, the holder unit 10A is moved to the narrow portion formed on either the left or right side in the drawing. The cullet generated at the time of scribing is less likely to enter the narrow width portion 14a of the holder groove 14, so that the life of the cutting edge is lengthened and the decrease in the end face strength of the scribe substrate after scribing and the variation in the breaking strength are suppressed. An excellent effect can be produced.

[Embodiment 3]
Next, the holder and holder unit of Embodiment 3 will be described with reference to FIGS. 5 is a perspective view of the holder unit of the third embodiment, FIG. 6A is a front view of the holder unit of FIG. 5, and FIG. 6B is an enlarged view of the VIB portion of FIG. 6A. 5 and 6, the same reference numerals are given to the same components as those of the holder unit 10 of the first embodiment, and detailed description thereof is omitted.

  The configuration of the holder 11B and the holder unit 10B of the third embodiment is different from that of the holder 11 and the holder unit 10 of the first embodiment in that the narrow portion 14a and the wide portion 14b of the holder groove 14 and the support portions 15 and 16 associated therewith. The arrangement of the wide portions 15a, 16a and the narrow portions 15b, 16b is upside down. That is, in the holder 11B and the holder unit 10B according to the third embodiment, the narrow width portion 14a of the holder groove 14 is formed below the scribing wheel 12, and the wide width portion 14b is formed above the scribing wheel 12. The 15 and 16 wide portions 15 a and 16 a are formed below the scribing wheel 12, and the narrow portions 15 b and 16 b are formed above the scribing wheel 12. Note that a step is formed between the wide portions 15a and 16a and the narrow portions 15b and 16b in the support portions 15 and 16 of the holder 11B.

  Also in this case, the opposing surfaces of the support portions 15 and 16 of the holder 11B, that is, the opposing surfaces of the wide width portions 15a and 16a and the opposing surfaces of the narrow width portions 15b and 16b are both formed in parallel. ing. The narrow portions 15b and 16b of the support portions 15 and 16 of the holder 11B are coaxially formed with pin holes 17 and 18 penetrating therethrough, and the pins 19 are wide of the support portions 15 and 16 of the holder 11B. It is attached so as not to contact the parts 15a and 16a. Therefore, a gap 20 is formed between the upper side of the wide portions 15 a and 16 a of the support portions 15 and 16 of the holder 11 </ b> B and the upper side of the pin 19.

  According to the holder 11B and the holder unit 10B of the third embodiment having such a configuration, the contact area between the scribing wheel 12 and the support portions 15 and 16 is smaller than that of the holder 11 and the holder unit 10 of the first embodiment. In addition, the effect of facilitating attachment of the scribing wheel 12 is also achieved.

  That is, when the scribing wheel 12 is attached, a part of the scribing wheel 12 is inserted into the narrow width portion 14 a of the holder groove 14, the pin 19 is inserted into the through hole 18 of the support portion 16, the through hole of the scribing wheel 12, and the support portion 15 is penetrated. The holes 17 are sequentially passed. However, in the holder 11 and the holder unit 10 according to the first embodiment, since the narrow width portion 14a is inside the holder 11, it is difficult to fix the scribing wheel 12, and when the outer diameter of the scribing wheel 12 is reduced, its attachment becomes difficult. On the other hand, according to the holder 11B and the holder unit 10B of the third embodiment, since the narrow width portion 14a of the holder groove 14 is formed on the cut end side, the narrow portion positioned at the lower end of the holder 11B when the scribing wheel 12 is attached. Since the pin 19 can be inserted while the scribing wheel 12 is held by the width portion 14a, the scribing wheel 12 can be easily attached and replaced.

  In addition, even if cullet is generated during scribing and this cullet enters between the narrow portion 14a of the holder groove 14 and the scribing wheel 12, the wide portions 15a, 16a of the support portions 15, 16 of the holder 11B Since the clearance 20 formed between the upper side and the pin 19 and the space formed between the pin 19 and the wide portion 14b of the holder groove 14 are easily discharged, the rotation of the scribing wheel 12 It is suppressed that property is impaired.

  The holder units shown in Embodiments 1 to 3 as described above can be attached to a brittle material cutting cutter for manually cutting a brittle material substrate. Moreover, the holder unit of Embodiments 1 to 3 can also form a scribe line with respect to the brittle material substrate by being attached to a scribe head provided in the scribe device. The scribing apparatus will be described with reference to the drawings.

  FIG. 7 shows a schematic diagram of the scribing apparatus 100. In the scribing apparatus 100, a moving base 111 is held so as to be movable in the y-axis direction along a pair of guide rails 112a and 112b. The moving table 111 is screwed with the ball screw 113. The ball screw 113 is rotated by the drive of the motor 114 to move the moving base 111 in the y-axis direction along the guide rails 112a and 112b.

  A motor 115 is provided on the upper surface of the movable table 111. The motor 115 rotates the table 116 on the xy plane and positions it at a predetermined angle. The brittle material substrate 117 is placed on the table 116 and held by a vacuum suction means (not shown). Two CCD cameras 118 that image the alignment marks of the brittle material substrate 117 are provided on the scriber 110. In the scribe device 110, a bridge 119 is installed by struts 120a and 120b along the x-axis direction so as to straddle the movable table 111 and the table 116 on the upper side thereof.

A guide 122 is attached to the bridge 119, and the scribe head 121 is movable along the x-axis direction along the guide 122. A scribe head 121 of the scribe device 100 is attached with a holder unit 110 including a holder 140 a that rotatably holds a scribing wheel 150 via a holder joint 123.
Next, the holder joint 123 will be described with reference to FIG. FIG. 8 is a front view of the holder joint 123 to which the holder unit 110 having the holder 40a is attached. The holder joint 123 has a substantially cylindrical shape, and includes a rotating shaft portion 124 and a joint portion 125.

  In a state where the holder joint 123 is attached to the scribe head 121, two bearings 126 a and 126 b for holding the holder joint 123 in a rotatable manner are provided on the rotating shaft portion 124 with a cylindrical spacer 127. It is in the state attached via. 8 shows a front view of the holder joint 123 and a sectional view of the bearings 126a and 126b and the spacer 127 attached to the rotary shaft portion 124. FIG.

  The cylindrical joint portion 125 has a circular opening 128 formed on the lower end side, and a magnet 129 is embedded in the upper portion of the opening. A holder unit 110 having a holder 140a is detachably attached to the opening 128. In addition, as shown in FIG. 9, the attachment part 146 for positioning is provided in the upper end side of the holder 140a. The attachment portion 146 is formed by cutting out the holder 140a, and has an inclined portion 146a and a support portion 146b. Further, at least a part of the upper end side of the holder 140a is made of a magnetic metal.

  The holder unit 110 including the scribing hole 150 and the holder 140a is inserted into the opening 128 of the holder joint 123 from the mounting portion 146 side of the holder 140a. At that time, the magnetic metal on the upper end side of the holder 140a is attracted by the magnet 129, and the inclined portion 146a of the mounting portion 146 comes into contact with the parallel pin 130 passing through the inside of the opening 128, and positioning is performed. It is fixed to the joint 123. On the other hand, when removing the holder unit 110 from the holder joint 123, the holder unit 110 can be easily removed by pulling it downward.

  Here, since the scribing wheel 150 is a consumable item, it must be periodically replaced. In this embodiment, since the holder unit 110 is attached to the scribe head 121 via the holder joint 123, the holder unit 110 can be easily attached and detached. Therefore, without removing the scribing wheel 150 from the holder 140a, the scribing wheel 150 and the holder 140a can be handled as one body, and the holder unit 110 itself can be replaced. Therefore, the scribing wheel 150 can be easily replaced. .

[Embodiment 4]
Next, details of the holder unit 110 including the holder 140a will be described with reference to FIGS. 9A is a perspective view of the holder unit 110 from the upper side, and FIG. 9B is a perspective view of the holder unit 110 from the lower side. 10A is a cross-sectional view taken along line Xa-Xa in FIG. 9A, and FIG. 10B is a cross-sectional view taken along line Xb-Xb in FIG. 9A.

  The holder 140a is made of a substantially cylindrical metal or resin, and support portions 1165 and 166 are provided on the lower end side thereof. A holder groove 142 for holding the scribing wheel 150 is formed between the support portion 165 and the support portion 166. Further, in order to fix the scribing wheel 150, hole-like pin holes z 143 a are formed in the support portions 165 and 166, respectively. A pin 144 is passed through the pin hole 143a, and a scribing wheel 150 is rotatably attached.

  As described above, the holder 140a is used to form a scribe line by bringing the scribing wheel 150 into contact with a member to be scribed, which is a brittle material substrate. The side (cut end side) in contact with is called “lower”, and the opposite side is called “upper”.

  The holder groove 142 formed in the holder 140a includes a narrow width portion 142a into which a part of the upper part of the scribing wheel 150 is inserted, and a wide width portion 142b that is an example of a hollow portion formed wider than the narrow width portion 142a. It consists of. Therefore, each of the pair of support portions 165 and 166 includes wide portions 165a and 166a facing the narrow portion 142a of the holder groove 142, and narrow portions 165b and 166b facing the wide portion 142b of the holder groove 142, respectively. . Note that a step is formed between the wide portions 165a and 166a and the narrow portions 165b and 166b in the support portions 165 and 166 of the holder 140a.

  The opposing inner walls of the support portions 165 and 166 of the holder 140a, that is, the opposing surfaces of the wide width portions 165a and 166a and the opposing surfaces of the narrow width portions 165b and 166b are both formed in parallel. And the pin hole 143a which penetrates each in the narrow part 165b, 166b in the support part 165,166 of the holder 140a is each formed coaxially. The pin hole 143 a is a circular through hole that intersects the holder groove 142 perpendicularly and holds the pin 144 of the scribing wheel 150.

  In the holder unit 110 of the fourth embodiment, the pin 144 is attached to the through hole 153 and the pin hole 143a of the scribing wheel 150 so as not to contact the wide portions 165a and 166a of the support portions 165 and 166 of the holder 140a. It has been. Therefore, a gap 167 is formed between the lower side of the wide portions 165 a and 166 a of the support portions 165 and 166 of the holder 140 a and the pin 144. Note that the pin 144 is a cylindrical member formed of, for example, a metal such as cemented carbide or sintered diamond, and one end has a pointed shape.

  The distance between the narrow portions 142 a of the holder groove 142 is set to be slightly larger than the width of the scribing wheel 150. The width of the scribing wheel 150 is, for example, about 0.65 mm, and the interval between the narrow portions 142a of the holder groove 142 is, for example, about 0.67 mm. Further, the interval between the wide portions 142b of the holder groove 142 is arbitrary as long as it is wider than the interval between the narrow portions 142a. However, in order to reduce the friction during rotation of the pin 144 in the pin hole 143a, the pin 144 is supported only at both ends, and the length of the portion where the pin 144 is located in the pin hole 143a. Need to be shorter. Therefore, it is preferable that one interval of the wide width portion 142 b is twice or more as long as the interval of the narrow width portion 142 a of the holder groove 142.

  On the other hand, if the interval between the wide portions 142b is increased too much, the widths of the narrow portions 165b and 166b of the support portions 165 and 166 of the holder 140a become narrow, so that the narrow portions 165b and 166b are caused by the load applied during scribing. Since there is a possibility that the pins 144 may be bent and the pins 144 are supported at both ends, the pins 144 themselves may be bent. Therefore, the narrow portions 165b and 166b of the support portions 165 and 166 of the holder 140a are generated. It is preferable that the width of the support part 165, 166 of the holder 140a is about 1/3 of the wide part 165a, 166a. Further, the gap 167 formed between the lower side of the wide portions 165a and 166a of the support portions 165 and 166 of the holder 140a and the pin 144 is arbitrary, but the smaller one is required to reduce the size of the holder unit 110. Is good.

  If the scribe device 100 is used to scribe a brittle substrate such as a glass substrate using the holder unit 110 in this state, the position of the scribing wheel 150 is stabilized within the narrow width portion 142a of the holder groove 142. There is almost no blurring of the left and right with respect to the direction, and the linearity of the scribe line when scribed can be improved. In addition, even if a cullet is generated during scribing and this cullet enters between the narrow portion 42a of the holder groove 142 and the scribing wheel 150, the support portions 165 and 166 of the wide portions 165a and 166a of the holder 140a Since the gap 167 formed between the lower side and the pin 144 and the space formed between the pin 144 and the brittle substrate are easily discharged, the rotational performance of the scribing wheel 150 is impaired. Is suppressed.

  For this reason, according to the holder unit 110 of the fourth embodiment, the scribing wheel 150 and the pin 144 have good rotational performance during scribing, so that the phenomenon that the cutting edge of the scribing wheel 150 slides on the surface of the substrate to be scribed during scribing is less likely to occur. As a result, the blade edge life is increased, and an excellent effect is achieved in that a decrease in end face strength of the scribe substrate after scribing and variation in breaking strength are suppressed.

  In addition, in the holder unit 110 of the fourth embodiment, the example in which the narrow width portion 142a of the holder groove 142 is formed in a part above the scribing wheel 150 is shown, but a part on the left and right sides is inserted in the drawing. Of course, it may be formed. In any case, the cullet generated at the time of scribing does not easily enter the narrow portion 142a of the holder groove 142, and the scribing wheel 150 and the pin 144 are excellent in rotation.

  In the holder 140a of the fourth embodiment, the opposing inner walls of the support portions 165 and 166 of the holder 140a, that is, the opposing surfaces of the wide portions 165a and 166a and the opposing surfaces of the narrow portions 165b and 166b are as follows. However, as long as the opposing surfaces of the wide portions 115a and 116a are formed in parallel, the opposing surfaces of the narrow portions 165b and 166b may not be parallel. As long as the opposing surfaces of the wide portions 165a and 166a of the support portions 165 and 166 that are in contact with the scribing wheel 150 are parallel to each other, the position of the scribing wheel 150 can be stabilized in the narrow portion 142a of the holder groove 142. Because.

[Embodiment 5]
Next, a holder unit 110A including the holder 140b of Embodiment 5 will be described with reference to FIG. 11A is a perspective view of the holder 140b from the lower side, FIG. 11B is a perspective view of the holder 140b from the opposite side, and FIG. 11C is a cross-sectional view taken along line XI-XI in FIG. 11A.

  The configuration of the holder 140b and the holder unit 110A of the fifth embodiment is different from the configuration of the holder 140a and the holder unit 110 of the fourth embodiment in that the configuration of the narrow portion 142a and the wide portion 142b of the holder groove 142 and the support portion 165 associated therewith. 166, wide portions 165a, 166a and narrow portions 165b, 166b. That is, in the holder 140b of the fifth embodiment, the narrow portion 142a of the holder groove 142 is formed so that a part above the scribing wheel 150 and a part on the right side of the scribing wheel 150 in FIG. 11C are inserted. Accordingly, wide portions 165a and 166a of the support portions 165 and 166 are formed above the scribing wheel 150 and on the right side of the scribing wheel 150 in FIG. 11C.

  The wide portion 142b of the holder groove 142 is formed on the left side of the scribing wheel 150 in FIG. 11C. Accordingly, the narrow portions 165b and 166b of the support portions 165 and 166 are connected to the left side of the scribing wheel 150 in FIG. 11C. Is formed. Further, a step is formed between the wide portions 165a and 166a and the narrow portions 165b and 166b in the support portions 165 and 166 of the holder 140b.

  Also in this case, the opposing inner walls of the support portions 165 and 166 of the holder 140b, that is, the opposing surfaces of the wide portions 165a and 166a and the opposing surfaces of the narrow portions 165b and 166b are formed in parallel. ing. The narrow portions 165b and 166b of the support portions 165 and 166 of the holder 140b are coaxially formed with pin holes 143a penetrating through the respective narrow portions 165b and 166b, and the pins 144 are wide portions 165a of the support portions 165 and 166 of the holder 140b. 166a so as not to contact. Therefore, a gap 167 is formed between the lower side of the wide portions 165 a and 166 a of the support portions 165 and 166 of the holder 140 b and the pin 144.

  According to the holder 140b and the holder unit 110A of the fifth embodiment having such a configuration, the wide portions 165a and 166a of the scribing wheel 150 and the support portions 165 and 166 are slightly compared with the holder 140a and the holder unit 110 of the fourth embodiment. The frictional resistance is slightly increased because the contact area between the slidable wheel and the rim is increased. Except for this point, substantially the same operation and effect can be obtained, and the cutting edge of the scribing wheel 150 has less vibration. Therefore, meandering during the formation of the scribe line is suppressed.

  In the holder unit 110A of the fifth embodiment, the narrow portion 142a of the holder groove 142 is formed so that not only a part above the scribing wheel 150 but also a part on the right side of the scribing wheel 150 in FIG. 11C is inserted. Although the example which was made was shown, it is natural that you may form so that a part of the left side of the scribing wheel 150 may be inserted in FIG. 11C. In any case, when a scribe line is formed by the scribe device 100 using the holder unit 110A having the holder 40c of the fifth embodiment, the cullet generated during the scribe can be generated by moving the holder 140b. Since it becomes difficult to penetrate into the narrow width portion 142a of the holder groove 142, it is possible to obtain an excellent effect that the cutting edge life is increased and the decrease in the end surface strength of the scribed substrate after scribe and the variation in the breaking strength are suppressed. become able to.

[Embodiment 6]
Next, a holder unit 110B including the holder 140c of Embodiment 6 will be described with reference to FIG. 12A is a perspective view of the holder 140c from the lower side, and FIG. 12B is a cross-sectional view taken along line XII-XII in FIG. 12A.

  The difference between the holder 140c and the holder unit 110B of the sixth embodiment and the holder 140a and the wheel unit 110 of the fourth embodiment is that the narrow portion 142a and the wide portion 142b of the holder groove 142 and the support portions 165 and 166 associated therewith. The wide portions 165a and 166a and the narrow portions 165b and 166b are arranged upside down. That is, in the holder 140c and the holder unit 110B according to the sixth embodiment, the narrow portion 142a of the holder groove 142 is formed below the scribing wheel 150, and the wide portion 142c is formed above the scribing wheel 150. Wide portions 165 a and 166 a of 165 and 166 are formed below the scribing wheel 150, and narrow portions 165 b and 166 b are formed above the scribing wheel 150. Note that a step is formed between the wide portions 165a and 166a and the narrow portions 165b and 166b in the support portions 165 and 166 of the holder 140c.

  Also in this case, the opposing inner walls of the support portions 165 and 166 of the holder 140c, that is, the opposing surfaces of the wide portions 165a and 166a and the opposing surfaces of the narrow portions 165b and 166b are formed in parallel. ing. The narrow portions 165b and 166b of the support portions 165 and 166 of the holder 140c are coaxially formed with pin holes 143a penetrating through the respective narrow portions 165b and 166b, and the pins 144 are wide portions 165a of the support portions 165 and 166 of the holder 140c. 166a so as not to contact. Therefore, a gap 167 is formed between the upper side of the wide portions 165a and 166a of the support portions 165 and 166 of the holder 140c and the upper side of the pin 144.

  According to the holder 140c and the holder unit 110B of the sixth embodiment having such a configuration, the contact area between the scribing wheel 150 and the support portions 165 and 166 is smaller than that of the holder 140c and the holder unit 110 of the fourth embodiment. The effect of becoming will also be played.

  Therefore, even when cullet is generated during scribing and this cullet enters between the narrow portion 142a of the holder groove 142 and the scribing wheel 150, the upper side of the wide portions 165a and 166a of the support portions 165 and 166 of the holder 140c Since the gap 67 formed between the pin 144 and the space formed between the pin 144 and the wide portion 142b of the holder groove 142 are easily discharged, the scribing wheel 150 can be rotated. Damage is suppressed.

  In the scribing apparatus 100 shown in FIG. 7, a scribing apparatus having a configuration in which the holder unit 110 is attached to the scribing head 121 via a holder joint is described. However, the scribing apparatus has a configuration in which the holder unit is directly attached to the scribing head. It does not matter.

10, 10A, 10B, 110, 110A, 110B ... Holder unit 11, 11A, 11B, 140a, 140b, 140c ... Holder 12, 150 ... Scribing wheel 13 ... Through hole 14, 142 ... Holder groove 14a, 142a ... (Holder groove) Narrow part 14b, 142b (Wide groove) Wide part 15, 16, 165, 166 ... Support part 15a, 16a, 165a, 166a ... (Support part) Wide part 15b, 16b, 165b, 166b ... Narrow width portion (of support portion) 17, 18, 143a ... pin hole 19, 144 ... pin 20, 167 ... gap 22, 23 ... presser cover 24, 25 ... adjustment screw 100 ... scribing device 123 ... holder joint

Claims (14)

A scribing wheel that is disc-shaped and has a through-hole formed at the center and a cutting edge having a V-shaped vertical cross-section along the outer periphery is inserted into a pin that is rotatably inserted into the through-hole of the scribing wheel. In a holder for holding it freely,
The holder is formed coaxially with the pair of support portions having a holder groove for holding the scribing wheel rotatably inside, a pair of support portions formed by the holder groove and facing each other in parallel, and the pair of support portions, respectively. And a pair of pin holes into which the pins are inserted,
The holder groove includes a narrow part into which a part of the scribing wheel is inserted, and a wide part wider than the narrow part,
The pair of pin holes are formed at positions corresponding to the wide portions of the holder grooves.   The holder according to claim 1, wherein the pair of support portions are formed in a step shape between the narrow portion and the wide portion of the holder groove.   3. The holder according to claim 1, wherein the narrow portion of the holder groove is formed on a side opposite to a cut end side of the holder with respect to an axis of the pin.   3. The narrow width portion of the holder groove is formed on the side opposite to the cutting end side of the holder and one of the left and right sides with respect to the axis of the pin. Holder.   3. The holder according to claim 1, wherein the narrow portion of the holder groove is formed on a cut end side of the holder with respect to an axis of the pin. At least one of the pair of pin holes of the pair of support portions penetrates the support portion, and the through-pin holes are formed on the outer surface of the support portion through which the pin holes penetrate on the side facing the holder groove. A presser cover that closes is placed,
The holder according to any one of claims 1 to 3, wherein each of the pressing covers is fixed to the holder by an adjusting screw at a position opposite to the cut end side of the holder. A scribing wheel that is disc-shaped, has a through-hole formed in the center, and has a V-shaped cutting edge formed along the outer periphery, and a holder for holding the scribing wheel rotatably. In the holder unit to
The holder includes a pair of support portions formed by holder grooves and having mutually parallel faces, a pair of pin holes formed coaxially with the pair of support portions, the pair of pin holes and the scribing A pin that is rotatably inserted into a through-hole of the wheel and rotatably holds the scribing wheel in the holder groove, and the holder groove has a narrow width part into which a part of the scribing wheel is inserted; It consists of a wide part wider than the narrow part,
The pair of pin holes are formed at positions corresponding to the wide portions of the holder grooves.   The holder unit according to claim 7, wherein the pair of support portions are formed in a step shape between the narrow portion and the wide portion of the holder groove.   9. The holder unit according to claim 7, wherein the narrow portion of the holder groove is formed on a side opposite to a cut end side of the holder with respect to an axis of the pin.   9. The narrow width portion of the holder groove is formed on a side opposite to the cutting end side of the holder and one of the left and right sides with respect to the axis of the pin. Holder unit.   9. The holder unit according to claim 7, wherein the narrow portion of the holder groove is formed on a cut end side of the holder with respect to an axis of the pin. At least one of the pair of pin holes of the pair of support portions penetrates the support portion, and the outer surface on the side facing the holder groove of the support portion through which the pin hole penetrates is blocked with the penetrating pin hole. A presser cover is placed,
The holder unit according to claim 7, wherein the pressing cover is fixed to the holder by an adjusting screw at a position opposite to the cut end side of the holder.   A scribing device comprising a scribing head to which the holder unit according to claim 7 is attached.   The scribing apparatus according to claim 13, wherein the holder unit is detachably attached via a holder joint.

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