Support and support unit

Abstract

The support (100) of the present application includes a support portion (200) that supports a first wheel side and a second wheel side. The support portion (200) includes a first support portion (210) that supports the first wheel side at two points, and a second support portion (220) that supports the second wheel side at one point.

Description

TECHNICAL FIELD

[0001] The present application relates to a support and a support unit. BACKGROUND

[0002] A scribe device is used in scribe processing of a workpiece such as a brittle material substrate. The scribe device brings a scribe wheel into contact with the workpiece and moves the scribe wheel relative to the workpiece, thereby forming a scribe on the workpiece. An example of a conventional scribe device is described in Patent Literature 1.

[0003] PRIOR ART DOCUMENTS

[0004] PATENT LITERATURE

[0005] Patent Literature 1: Japanese Patent Application Laid-Open No. 2002-234748 SUMMARY

[0006] PROBLEMS TO BE SOLVED BY THE INVENTION

[0007] As the scribe wheel comes into contact with the workpiece, the attitude of the scribe wheel relative to the support sometimes changes. It is considered that the more the degree of difference in the attitude of the scribe wheel relative to the support each time the scribe wheel comes into contact with the workpiece is small, the more the processing accuracy of the scribe is improved.

[0008] TECHNICAL SOLUTION FOR SOLVING THE PROBLEM

[0009] The support according to the present application includes a support portion of a first side surface and a second side surface of a scribe wheel, the support portion including a first support portion and a second support portion, the first support portion supporting the first side surface at two points, and the second support portion supporting the second side surface at one point.

[0010] The degree of difference in the attitude of the scribe wheel relative to the support each time the scribe wheel comes into contact with the workpiece is small.

[0011] In an example of the support, the first support portion includes a first contact portion and a second contact portion that come into contact with the first side surface, and the second support portion includes a third contact portion that comes into contact with the second side surface, the positions of the first contact portion and the second contact portion in the front-rear direction of the support being different from the position of the third contact portion.

[0012] The attitude stability of the scribe wheel is high.

[0013] In an example of the support, the position of the first contact portion in the front-rear direction of the support is the same as the position of the second contact portion.

[0014] The attitude stability of the scribe wheel is high.

[0015] In one example of the bracket, the position of the third contact portion in the up-down direction of the bracket is between the position of the first contact portion and the position of the second contact portion.

[0016] The posture stability of the scribing wheel is improved.

[0017] In one example of the bracket, the first support portion includes a first support surface facing the first side surface, and a concave structure provided to the first support surface, the concave structure including the first contact portion and the second contact portion.

[0018] The first support portion can be easily formed.

[0019] In one example of the bracket, the concave structure includes a groove including a front end portion opening at a front surface of the bracket, and a rear end portion opening at a rear surface of the bracket.

[0020] The first support portion can be easily formed.

[0021] In one example of the bracket, the second support portion includes a second support surface facing the second side surface,

[0022] The second support surface includes the third contact portion.

[0023] The second support portion can be easily formed.

[0024] In one example of the bracket, the first support portion supports a portion of the first side surface located more rearward than a reference position in a front-rear direction, and the second support portion supports a portion of the second side surface located more forward than the reference position in the front-rear direction.

[0025] The degree of difference in the posture of the scribing wheel each time the scribing wheel contacts the workpiece is reduced.

[0026] In one example of the bracket, the support portion is configured to support the first side surface and the second side surface in a state in which a center surface of the scribing wheel is inclined with respect to a reference center surface.

[0027] A reaction force generated in the scribing wheel as the scribing wheel advances with respect to the workpiece generates a rotational force on the scribing wheel in such a manner as to press the first side surface of the scribing wheel against the first support portion and press the second side surface of the scribing wheel against the second support portion. The posture stability of the scribing wheel is improved.

[0028] The present application relates to a support unit including a scribing wheel, a pin supporting the scribing wheel, and a support supporting the pin, the support including a support portion supporting a first side surface and a second side surface of the scribing wheel, the support portion including a first support portion supporting the first side surface at two points and a second support portion supporting the second side surface at one point.

[0029] The degree of difference in the posture of the scribing wheel each time the scribing wheel contacts the workpiece is reduced.

[0030] Inventive Effects

[0031] The support and the support unit according to the present application contribute to improving the processing accuracy of scribing. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a side view of a scribing head of the first embodiment.

[0033] Figure 2 is a front view of the scribing head.

[0034] Figure 3 is a side view of a scribing wheel.

[0035] Figure 4 is a cross-sectional view of the scribing wheel.

[0036] Figure 5 is a cross-sectional view of a support unit.

[0037] Figure 6 is a front view (1) of a first support portion of the second embodiment.

[0038] Figure 7 is a front view (2) of the first support portion.

[0039] Figure 8 is a front view (3) of the first support portion.

[0040] Figure 9 is a front view (4) of the first support portion.

[0041] Figure 10 is a front view of a second support portion.

[0042] Figure 11 is a side view of a scribing wheel.

[0043] Figure 12 is a front view of a first support portion of the fifth embodiment.

[0044] Figure 13 is a front view of a second support portion.

[0045] Figure 14 is a side view of a scribing wheel.

[0046] Figure 15 is a front view of the first support portion of the eighth embodiment (1).

[0047] Figure 16 is a front view of the first support portion of the ninth embodiment.

[0048] Figure 17 is a front view of the first support portion of the tenth embodiment.

[0049] Figure 18 is a front view of the second support portion of the eleventh embodiment.

[0050] Figure 19 is a side view of the cradle assembly of the twelfth embodiment (1).

[0051] Figure 20 is a side view of the cradle assembly (2).

[0052] Figure 21 is a side view of the cradle assembly (3).

[0053] Figure 22 is a perspective view of the cradle of the thirteenth embodiment (1).

[0054] Figure 23 is a perspective view of the cradle (2).

[0055] Figure 24 is a front view of the cradle.

[0056] Figure 25 is a side view of the cradle.

[0057] Figure 26 is a bottom view of the cradle.

[0058] Figure 27 is a cross-sectional view of the cradle.

[0059] Figure 28 is a front view of the first support portion.

[0060] Figure 29 is a front view of the second support portion.

[0061] Figure 30 is a front view of the second support portion of the fourteenth embodiment. DETAILED DESCRIPTION

[0062] (First Embodiment)

[0063] Figure 1 , Figure 2An example of the scribe head A10 is shown. The scribe head A10 is assembled to a scribe processing apparatus that performs scribe processing on a workpiece. The scribe processing apparatus has, for example, the scribe head A10 and a moving apparatus, and the like.

[0064] As an example of the workpiece, a substrate can be given. As an example of the substrate, a brittle material substrate can be given. As an example of the brittle material substrate, a glass substrate, a ceramic substrate, a silicon substrate, a compound semiconductor substrate, a sapphire substrate, and a quartz substrate can be given. As an example of the ceramic substrate, a low-temperature fired ceramic and a high-temperature fired ceramic can be given.

[0065] The scribe head A10 is mounted to a moving apparatus. The moving apparatus is configured to arbitrarily change the position of the scribe head A10 with respect to the workpiece. In an example, the moving apparatus includes at least one of a planar moving section and a vertical moving section.

[0066] The planar moving section changes the position of the scribe head A10 in a direction parallel to the processed surface of the workpiece. The vertical moving section changes the position of the scribe head A10 in a direction perpendicular to the processed surface of the workpiece.

[0067] The scribe head A10 has, for example, a base A11, a link structure A20, a holder joint holder A12, and a holder assembly A30.

[0068] The base A11 is mounted to the moving apparatus. The relationship between the base A11 and the moving apparatus is exemplified. In a first example, the base A11 is mounted to the planar moving section of the moving apparatus. In a second example, the base A11 is mounted to the vertical moving section of the moving apparatus.

[0069] The holder joint holder A12 is mounted to the base A11 via the link structure A20. The configuration of the link structure A20 is exemplified.

[0070] In the first example, the link structure A20 links the holder joint holder A12 to the base A11 in such a manner that the holder joint holder A12 is movable in a prescribed direction with respect to the base A11. The prescribed direction includes, for example, at least one of a direction perpendicular to the processed surface of the workpiece and a direction parallel to the processed surface of the workpiece. Figure 1 、 Figure 2 An example of the link structure 20 of the first example is shown.

[0071] In the second example, the link structure A20 links the holder joint holder A12 to the base A11 in such a manner that the holder joint holder A12 is not movable with respect to the base A11.

[0072] In the illustrated example, the coupling structure A20 includes a rail A21 and a slider A22. The rail A21 is attached to one of the base A11 and the jig joint holder A12. The slider A22 is attached to the other of the base A11 and the jig joint holder A12.

[0073] The rail A21 is attached to the base A11, for example. The slider A22 is attached to the jig joint holder A12, for example. The coupling structure A20 allows the base A11 and the jig joint holder A12 to relatively move in a direction perpendicular to the machined surface of the workpiece, for example.

[0074] The jig joint holder A12 is configured to be able to select a state in which the jig assembly A30 is held and a state in which the jig assembly A30 is not held.

[0075] The jig assembly A30 has the jig joint B10 and the jig unit 10. The jig joint B10 supports the jig unit 10. In one example, the jig joint B10 is configured to be detachable with respect to the jig joint holder A12.

[0076] The jig unit 10 is coupled with the jig joint holder A12 via the jig joint B10.

[0077] In one example, the jig unit 10 is supported to the jig joint B10 in a manner that is able to rotate with respect to the jig joint holder A12 around a central axis of the jig joint B10.

[0078] The jig unit 10 includes the jig 100, a scribe wheel C10, and a pin D10, for example.

[0079] The jig 100 is combined with the jig joint B10. The pin D10 is provided to the jig 100. The scribe wheel C10 is supported to the pin D10 in a manner that is able to rotate with respect to the jig 100.

[0080] The scribe head A10 has a load adjustment portion A40, for example. The load adjustment portion A40 adjusts a force by which the scribe wheel C10 is pressed against the workpiece. The load adjustment portion A40 includes an actuator A41 and a bracket A42, for example.

[0081] The bracket A42 is attached to the base A11. The actuator A41 is attached to the bracket A42. The actuator A41 pushes the jig joint holder A12, the rail A21 attached to the jig joint holder A12, or the slider A22 attached to the jig joint holder A12 toward the workpiece, for example.

[0082] As an example of the actuator A41, a power cylinder, a solenoid, an electric motor, a servo motor, and a linear actuator can be given. As an example of the power cylinder, a hydraulic cylinder, an air cylinder, a water cylinder, and an electric cylinder can be given.

[0083] Figure 3 、 Figure 4 An example of the scribe wheel C10 is shown. The scribe wheel C10 includes an inner peripheral portion C20 and a tip portion C30. As an example of the basic structure of the scribe wheel C10, a first structure and a second structure can be given.

[0084] In the first structure, the scribe wheel C10 including the inner peripheral portion C20 and the tip portion C30 is formed integrally of a single high-hardness material. In the second structure, the scribe wheel C10 includes the inner peripheral portion C20 formed of a high-hardness material and the tip portion C30 formed of a high-hardness material different from the inner peripheral portion C20.

[0085] As the high-hardness material, for example, super-hard alloy, polycrystalline diamond, and single-crystal diamond can be given. The polycrystalline diamond is, for example, poly-crystalline diamond (PCD) or nano-polycrystalline diamond (NPD).

[0086] The inner peripheral portion C20 is provided around a wheel center axis LW as a center axis of the scribe wheel C10. Hereinafter, a direction along the wheel center axis LW is referred to as an axial direction of the scribe wheel C10.

[0087] A wheel center face C11 as a center face of the scribe wheel C10 passes through the center of the scribe wheel C10 in the axial direction of the scribe wheel C10 and is orthogonal to the wheel center axis LW.

[0088] The shape of the scribe wheel C10 is symmetrical or asymmetrical with respect to the wheel center face 11. In the example shown, the shape of the scribe wheel C10 is symmetrical with respect to the wheel center face 11.

[0089] When the scribe wheel C10 is observed from the side, the inner peripheral portion C20 and the tip portion C30 have a shape of a ring. The tip portion C30 is provided at a radially outer side of the scribe wheel C10 with respect to the inner peripheral portion C20. The tip portion C30 constitutes a blade of the scribe wheel C10.

[0090] The thickness of the tip portion C30 is thinned as it goes toward the radially outer side of the scribe wheel C10. A leading end of the tip portion C30 is formed with a ridge line 31 corresponding to the circumference of the scribe wheel C10.

[0091] The inner peripheral portion C20 includes, for example, a first wheel side face C21 as a first side face of the scribe wheel C10 and a second wheel side face C22 as a second side face of the scribe wheel C10.

[0092] The relationship between the wheel side faces C21, C22 is exemplified. In a first example, the shape of the first wheel side face C21 is the same as the shape of the second wheel side face C22. In a second example, the shape of the first wheel side face C21 is different from the shape of the second wheel side face C22.

[0093] As examples of the shape difference between the wheel flanks C21, C22, there are the difference in the outer peripheral shape of the wheel flanks C21, C22, the presence or absence of a concave structure in the wheel flanks C21, C22, and the presence or absence of a convex structure in the wheel flanks C21, C22, and the like.

[0094] In the illustrated example, the shapes of the wheel flanks C21, C22 are the same. The wheel flanks C21, C22 are flat surfaces. The wheel flanks 21, 22 are parallel to the wheel center surface 11.

[0095] A boundary portion 40 is formed between the outer periphery of the wheel flanks 21, 22 and the nose portion C30. The boundary portion 40 is an edge formed between the outer surfaces of the wheel flanks 21, 22 and the nose portion C30, or a portion equivalent thereto. The boundary portion C40 is included in the wheel flanks C21, C22.

[0096] The inner peripheral portion C20 includes, for example, a wheel inner peripheral surface C23 which is an inner peripheral surface of the scribing wheel C10, a through-hole C24, and a chamfer C25.

[0097] The wheel inner peripheral surface C22 defines the through-hole C24. The through-hole C24 penetrates the inner peripheral portion C20 in the axial direction of the scribing wheel C10. The through-hole C24 is circular. The chamfer C25 is formed around the through-hole C24.

[0098] Figure 5 An example of a holder 100 is shown. As directions related to the holder 100, for example, a width direction, a front-rear direction, and an up-down direction are defined. The width direction includes a first side direction and a second side direction. The second side direction is a direction opposite to the first side direction. The front-rear direction includes a front direction and a rear direction. The rear direction is a direction opposite to the front direction. The up-down direction includes an upper direction and a lower direction. The lower direction is a direction opposite to the upper direction.

[0099] In the description regarding the holder 100, for example, an orthogonal coordinate system is used. The X-axis is parallel to the width direction of the holder 100. The Y-axis is parallel to the front-rear direction of the holder 100. The Z-axis is parallel to the up-down direction of the holder 100.

[0100] The X-axis and the Y-axis determine a first reference surface. The X-axis and the Z-axis determine a second reference surface. The Y-axis and the Z-axis determine a third reference surface.

[0101] The holder 100 has, for example, a main body portion 110 and a support portion 200. The main body portion 110 is combined with the holder joint B10.

[0102] The support portion 200 is disposed below the main body portion 110 in the up-down direction of the holder 100. The relationship between the support portion 200 and the main body portion 110 is exemplified.

[0103] In the first example, the support portion 200 is integrally formed with the main body portion 110. In the second example, the support portion 200 is separately formed from the main body portion 110. The support portion 200 is combined with the main body portion 110 in a detachable manner or a non-detachable manner.

[0104] The support portion 200 includes, for example, a first support portion 210 and a second support portion 220. The first support portion 210 is provided at a position deviated toward a first side in a width direction of the bracket 100 with respect to a bracket center axis LH that is a center axis of the bracket 100. The second support portion 220 is provided at a position deviated toward a second side in the width direction of the bracket 100 with respect to the bracket center axis LH.

[0105] The first support portion 210 includes a first support surface 211. The first support surface 211 faces the first wheel side surface C21. The second support portion 220 includes a second support surface 221. The second support surface 221 faces the second wheel side surface C22.

[0106] In the width direction of the bracket 100, the first support portion 210 and the second support portion 220 are provided at intervals. A wheel arrangement space 101 is formed between the first support surface 211 and the second support surface 221. The wheel arrangement space 101 is formed so as to be able to arrange the scribe wheel C10.

[0107] The support portion 200 includes, for example, a pin support portion 230. The pin support portion 230 supports a pin D10. The pin support portion 230 includes a first pin support portion 231 and a second pin support portion 232. The first pin support portion 231 is provided at the first support portion 210. The second pin support portion 232 is provided at the second support portion 220.

[0108] The pin D10 has, for example, a cylindrical shape. The pin D10 includes, for example, a first end portion D11, a second end portion D12, an intermediate portion D13, and a pin outer peripheral surface D14 that is an outer peripheral surface of the pin D10.

[0109] The intermediate portion D13 is provided between the first end portion D11 and the second end portion D12 in a direction along a pin center axis LP that is a center axis of the pin D10. At least the intermediate portion D13 of the pin D10 is arranged in the wheel arrangement space 101. The pin outer peripheral surface D14 of the intermediate portion D13 is in contact with a wheel inner peripheral surface C23 of the scribe wheel C10.

[0110] Examples of a support form of the pin D10 by the pin support portion 230 include a first support form and a second support form. In the first support form, the pin D10 is separately formed from the pin support portion 230. The pin D10 is inserted into the pin support portion 230. The pin support portion 230 supports the pin D10. In the second support form, the pin D10 is integrally formed with the pin support portion 230.

[0111] In the illustrated example of the first support state, each pin support portion 231, 232 includes a pin support surface 233 and a pin arrangement space 234. The pin support surface 233 defines the pin arrangement space 234. The pin arrangement space 234 is formed so as to be able to arrange the pin D10.

[0112] The first end portion D11 of the pin D10 is arranged in the pin arrangement space 234 of the first pin support portion 231. The first end portion D11 of the pin D10 is supported on the pin support surface 233 of the first pin support portion 231.

[0113] The second end portion D12 of the pin D10 is arranged in the pin arrangement space 234 of the second pin support portion 232. The second end portion D12 of the pin D10 is supported on the pin support surface 233 of the second pin support portion 232.

[0114] The pin D10 is supported on the pin support portion 230 in a state in which the pin center axis LP is parallel to the width direction of the bracket 100 or in a state in which the pin center axis LP intersects the width direction of the bracket 100. In the illustrated example, the pin center axis LP is parallel to the width direction of the bracket 100.

[0115] In the example of the first support state, the support portion 200 includes a detachment prevention portion 240. The detachment prevention portion 240 is configured so that the pin D10 does not move to the outside of the support portion 200 via the opening of the pin arrangement space 234. The detachment prevention portion 240 is provided to at least one of the pin support portions 231, 232.

[0116] The configuration of the detachment prevention portion 240 is exemplified. In a first example, the detachment prevention portion 240 is provided to the outside of the support portion 200. In a second example, the detachment prevention portion 240 is provided to the pin arrangement space 234.

[0117] The relationship between the detachment prevention portion 240 and the support portion 200 is exemplified. In a first example, the detachment prevention portion 240 is configured so as to be detachable with respect to the support portion 200. In a second example, the detachment prevention portion 240 is fixed to the support portion 200 by a fixing means. The fixing means includes at least one of, for example, riveting, adhesion, and welding.

[0118] The support portion 200 supports the scribing wheel C10 via the pin D10. The support portion 200 is configured so as to be able to support the scribing wheel C10 in a prescribed support state in a state in which the blade tip portion C30 of the scribing wheel C10 is in contact with a workpiece. The prescribed support state includes at least one of, for example, a three-point support state and a tilting support state.

[0119] The bracket 100 includes, for example, a three-point support structure S3. The three-point support structure S3 is configured so as to be able to support the scribing wheel C10 in a three-point support state. The first support portion 210 and the second support portion 220 constitute the three-point support structure S3.

[0120] In the three-point support state, the first wheel side C21 is supported at two points by the first support part 210, and the second wheel side C22 is supported at one point by the second support part 220.

[0121] In the three-point support state, three contact points are formed by the marking wheel C10 and the support part 200. The three contact points include a first contact point, a second contact point, and a third contact point.

[0122] The first and second contact points are the contact points between the first support portion 210 and the side surface C21 of the first wheel. The third contact point is the contact point between the second support portion 220 and the side surface C22 of the second wheel. The contact state at each contact point is point contact, line contact, or surface contact.

[0123] The first wheel side C21 in the three-point support state includes a contact part and a non-contact part.

[0124] The contact portion of the first wheel side surface C21 is the portion of the first wheel side surface C21 that forms the first contact point and the portion of the first wheel side surface C21 that forms the second contact point.

[0125] The non-contact portion of the first wheel side surface C21 is the portion of the first wheel side surface C21 other than the portion forming the first contact point and the portion forming the second contact point. The non-contact portion of the first wheel side surface C21 does not contact the first support surface 211.

[0126] The second wheel side C22 in the three-point support state includes a contact part and a non-contact part.

[0127] The contact portion of the second wheel side C22 is the part that forms the third contact point in the second wheel side C22.

[0128] The non-contact portion of the second wheel side surface C22 is the portion of the second wheel side surface C22 other than the portion forming the third contact point. The non-contact portion of the second wheel side surface C22 does not contact the second support surface 221.

[0129] The first support surface 211 of the first support portion 210 includes, for example, at least one of a first surface structure and a second surface structure.

[0130] An example of the first surface structure of the first support surface 211 is given. In one example, the first support surface 211 includes at least one plane and one curved surface. The plane includes, for example, at least one surface parallel to the third reference plane and one surface inclined relative to the third reference plane.

[0131] An example of the second surface structure of the first support surface 211 is given. In one example, the first support surface 211 includes at least one concave structure and one convex structure.

[0132] An example of the concave structure of the first support surface 211 is given.

[0133] In the first example, the concave structure of the first support surface 211 includes one or more recesses facing the contact portion of the first wheel side surface C21. In the three-point support state, the recesses of the first example are in contact with the contact portion of the first wheel side surface C21, and are not in contact with the non-contact portion of the first wheel side surface C21.

[0134] In the second example, the concave structure of the first support surface 211 includes one or more recesses not facing the contact portion of the first wheel side surface C21. In the three-point support state, the recesses of the second example are not in contact with the contact portion and the non-contact portion of the first wheel side surface C21.

[0135] In the third example, the concave structure of the first support surface 211 includes one or more recesses not facing the first wheel side surface C21. In the three-point support state, the recesses of the third example are not in contact with the contact portion and the non-contact portion of the first wheel side surface C21.

[0136] In the fourth example, the concave structure of the first support surface 211 includes one or more grooves facing the contact portion of the first wheel side surface C21. In the three-point support state, the grooves of the fourth example are in contact with the contact portion of the first wheel side surface C21, and are not in contact with the non-contact portion of the first wheel side surface C21.

[0137] In the fifth example, the concave structure of the first support surface 211 includes one or more recesses not facing the contact portion of the first wheel side surface C21. In the three-point support state, the grooves of the fifth example are not in contact with the contact portion and the non-contact portion of the first wheel side surface C21.

[0138] In the sixth example, the concave structure of the first support surface 211 includes one or more grooves not facing the first wheel side surface C21. In the three-point support state, the grooves of the sixth example are not in contact with the contact portion and the non-contact portion of the first wheel side surface C21.

[0139] In the seventh example, the concave structure of the first support surface 211 includes at least two of the first example to the sixth example.

[0140] Examples of the convex structure of the first support surface 211 are described.

[0141] In the first example, the convex structure of the first support surface 211 includes one or more protrusions facing the contact portion of the first wheel side surface C21. In the three-point support state, the protrusions of the first example are in contact with the contact portion of the first wheel side surface C21, and are not in contact with the non-contact portion of the first wheel side surface C21.

[0142] In the second example, the convex structure of the first support surface 211 includes one or more protrusions not facing the contact portion of the first wheel side surface C21. In the three-point support state, the protrusions of the second example are not in contact with the contact portion and the non-contact portion of the first wheel side surface C21.

[0143] In the third example, the convex structure of the first support surface 211 includes one or more convex portions not facing the first wheel side surface C21. In the three-point support state, the convex portions of the third example do not contact the contact portion and the non-contact portion of the first wheel side surface C21.

[0144] In the fourth example, the concave structure of the first support surface 211 includes at least two of the first example to the third example.

[0145] In the first support portion 210 in which the first support surface 211 is provided with the concave structure, the first support surface 211 includes a base surface and a concave surface. The base surface is a surface around the concave structure. The concave structure is recessed with respect to the base surface. The concave structure is open in the base surface. The concave surface is a surface that defines a space of the concave structure.

[0146] In the first support portion 210 in which the first support surface 211 is provided with the convex structure, the first support surface 211 includes a base surface and a convex surface. The base surface is a surface around the convex structure. The convex structure is protruded with respect to the base surface. The convex surface is a surface of the convex structure.

[0147] The first support portion 210 includes a first contact portion and a second contact portion that contact the first wheel side surface C21. The first contact portion and the second contact portion are provided to the first support surface 211. In a state in which the first contact portion contacts the first wheel side surface C21, a first contact point is formed. In a state in which the second contact portion contacts the first wheel side surface C21, a second contact point is formed.

[0148] The first contact portion, for example, includes at least one of a portion of a plane in the first surface structure, a portion of a curved surface in the first surface structure, a concave structure in the second surface structure, and a convex structure in the second surface structure.

[0149] The second contact portion, for example, includes at least one of a portion of a plane in the first surface structure, a portion of a curved surface in the first surface structure, a concave structure in the second surface structure, and a convex structure in the second surface structure.

[0150] The second support surface 221 of the second support portion 220, for example, includes at least one of the first surface structure and the second surface structure.

[0151] The first surface structure of the second support surface 221 is exemplified. In one example, the second support surface 221 includes at least one of a plane and a curved surface. The plane, for example, includes at least one of a surface parallel to the third reference surface and a surface inclined with respect to the third reference surface.

[0152] The second surface structure of the second support surface 221 is exemplified. In one example, the second support surface 221 includes at least one of a concave structure and a convex structure.

[0153] The concave structure of the second support surface 221 is exemplified.

[0154] In the first example, the concave structure of the second support surface 221 includes one or more recesses facing the contact portion of the second wheel side surface C22. In the three-point support state, the recesses of the first example are in contact with the contact portion of the second wheel side surface C22, and are not in contact with the non-contact portion of the second wheel side surface C22.

[0155] In the second example, the concave structure of the second support surface 221 includes one or more recesses not facing the contact portion of the second wheel side surface C22. In the three-point support state, the recesses of the second example are not in contact with the contact portion and the non-contact portion of the second wheel side surface C22.

[0156] In the third example, the concave structure of the second support surface 221 includes one or more recesses facing the contact portion of the second wheel side surface C22. In the three-point support state, the recesses of the third example are not in contact with the contact portion and the non-contact portion of the second wheel side surface C22.

[0157] In the fourth example, the concave structure of the second support surface 221 includes one or more grooves facing the contact portion of the second wheel side surface C22. In the three-point support state, the grooves of the fourth example are in contact with the contact portion of the second wheel side surface C22, and are not in contact with the non-contact portion of the second wheel side surface C22.

[0158] In the fifth example, the concave structure of the second support surface 221 includes one or more grooves not facing the contact portion of the second wheel side surface C22. In the three-point support state, the grooves of the fifth example are not in contact with the contact portion and the non-contact portion of the second wheel side surface C22.

[0159] In the sixth example, the concave structure of the second support surface 221 includes one or more grooves not facing the second wheel side surface C22. In the three-point support state, the grooves of the sixth example are not in contact with the contact portion and the non-contact portion of the second wheel side surface C22.

[0160] In the seventh example, the concave structure of the second support surface 221 includes at least two of the first example to the sixth example.

[0161] The convex structure of the second support surface 221 is exemplified.

[0162] In the first example, the convex structure of the second support surface 221 includes one or more protrusions facing the contact portion of the second wheel side surface C22. In the three-point support state, the protrusions of the first example are in contact with the contact portion of the second wheel side surface C22, and are not in contact with the non-contact portion of the second wheel side surface C22.

[0163] In the second example, the convex structure of the second support surface 221 includes one or more protrusions not facing the contact portion of the second wheel side surface C22. In the three-point support state, the protrusions of the second example are not in contact with the contact portion and the non-contact portion of the second wheel side surface C22.

[0164] In the third example, the convex structure of the second support surface 221 includes one or more convex portions not facing the second wheel side surface C22. In the three-point support state, the convex portions of the third example do not contact the contact portion and the non-contact portion of the second wheel side surface C22.

[0165] In the fourth example, the concave structure of the second support surface 221 includes at least two of the first example to the third example.

[0166] In the second support portion 220 in which the second support surface 221 is provided with the concave structure, the second support surface 221 includes a base surface and a concave surface. The base surface is a surface around the concave structure. The concave structure is recessed with respect to the base surface. The concave structure is open in the base surface. The concave surface is a surface that defines a space of the concave structure.

[0167] In the second support portion 220 in which the second support surface 221 is provided with the convex structure, the second support surface 221 includes a base surface and a convex surface. The base surface is a surface around the convex structure. The convex structure is protruded with respect to the base surface. The convex surface is a surface of the convex structure.

[0168] The second support portion 220 includes a third contact portion that contacts the second wheel side surface C22. The third contact portion is provided to the second support surface 221. In a state in which the third contact portion contacts the second wheel side surface C22, a third contact point is formed.

[0169] The third contact portion, for example, includes at least one of a portion of a plane in the first surface structure, a portion of a curved surface in the first surface structure, a concave structure in the second surface structure, and a convex structure in the second surface structure.

[0170] The positional relationship of the first contact portion, the second contact portion, and the third contact portion in the front-rear direction of the bracket 100 is exemplified.

[0171] In the first example, the position of the first contact portion in the front-rear direction of the bracket 100 is different from the position of the second contact portion and the position of the third contact portion. The first example includes, for example, Example 1A and Example 1B.

[0172] In Example 1A, the position of the first contact portion in the front-rear direction of the bracket 100 is in front of the position of the second contact portion and the position of the third contact portion.

[0173] In Example 1B, the position of the first contact portion in the front-rear direction of the bracket 100 is in rear of the position of the second contact portion and the position of the third contact portion.

[0174] In Example 1A or Example 1B, the position of the second contact portion in the front-rear direction of the bracket 100 is in front of, in rear of, or the same as the position of the third contact portion.

[0175] In the second example, the position of the second contact portion in the front-rear direction of the support 100 is different from the position of the first contact portion and the position of the third contact portion. The second example includes, for example, Example 2A and Example 2B.

[0176] In Example 2A, the position of the second contact portion in the front-rear direction of the support 100 is forward with respect to the position of the first contact portion and the position of the third contact portion.

[0177] In Example 2B, the position of the second contact portion in the front-rear direction of the support 100 is rearward with respect to the position of the first contact portion and the position of the third contact portion.

[0178] In Example 2A or Example 2B, the position of the first contact portion in the front-rear direction of the support 100 is forward, rearward, or the same with respect to the position of the third contact portion.

[0179] In the third example, the position of the first contact portion in the front-rear direction of the support 100 is different from the position of the first contact portion and the position of the second contact portion. The third example includes, for example, Example 3A and Example 3B.

[0180] In Example 3A, the position of the third contact portion in the front-rear direction of the support 100 is forward with respect to the position of the first contact portion and the position of the second contact portion.

[0181] In Example 3B, the position of the third contact portion in the front-rear direction of the support 100 is rearward with respect to the position of the first contact portion and the position of the second contact portion.

[0182] In Example 3A or Example 3B, the position of the first contact portion in the front-rear direction of the support 100 is forward, rearward, or the same with respect to the position of the second contact portion.

[0183] In the fourth example, the position of the first contact portion and the position of the second contact portion in the front-rear direction of the support 100 are the same. The fourth example includes, for example, Example 4A and Example 4B.

[0184] In Example 4A, the position of the first contact portion and the position of the second contact portion in the front-rear direction of the support 100 are forward with respect to the position of the third contact portion.

[0185] In Example 4B, the position of the first contact portion and the position of the second contact portion in the front-rear direction of the support 100 are rearward with respect to the position of the third contact portion.

[0186] In the fifth example, the position of the first contact portion and the position of the third contact portion in the front-rear direction of the support 100 are the same. The fifth example includes, for example, Example 5A and Example 5B.

[0187] In Example 5A, the position of the first contact portion and the position of the third contact portion in the front-rear direction of the support 100 are forward with respect to the position of the second contact portion.

[0188] In Example 5B, the position of the first contact portion and the position of the third contact portion in the front-rear direction of the bracket 100 are behind the position of the second contact portion.

[0189] In a sixth example, the position of the second contact portion and the position of the third contact portion in the front-rear direction of the bracket 100 are the same. The sixth example includes, for example, Example 6A and Example 6B.

[0190] In Example 6A, the position of the second contact portion and the position of the third contact portion in the front-rear direction of the bracket 100 are in front of the position of the first contact portion.

[0191] In Example 6B, the position of the second contact portion and the position of the third contact portion in the front-rear direction of the bracket 100 are behind the position of the first contact portion.

[0192] The position of the first contact portion with respect to the reference position in the front-rear direction in the first example to the sixth example is exemplified. In the first example to the sixth example, the position of the first contact portion is selected from, for example, the following position examples Al to A3 in a range in which the relative positional relationship of each contact portion in each example is satisfied.

[0193] The reference position in the front-rear direction is selected, for example, from a second reference surface including the center of the pin support portion 230 in the front-rear direction of the bracket 100, a second reference surface including the bracket center axis LH, a second reference surface including the pin center axis LP, or a second reference surface including the wheel center axis LW.

[0194] The second reference surface including the pin center axis LP is determined, for example, with the pin center axis LP in a state in which the scribing wheel C10 is pressed against a workpiece as a reference.

[0195] The second reference surface including the wheel center axis LW is determined, for example, with the wheel center axis LW in a state in which the scribing wheel C10 is pressed against a workpiece as a reference.

[0196] In the position example Al, the position of the first contact portion in the front-rear direction of the bracket 100 is in front of the reference position in the front-rear direction.

[0197] In the position example A2, the position of the first contact portion in the front-rear direction of the bracket 100 is behind the reference position in the front-rear direction.

[0198] In the position example A3, the position of the first contact portion in the front-rear direction of the bracket 100 is the same as the reference position in the front-rear direction.

[0199] The position of the second contact portion with respect to the reference position in the front-rear direction in the first to sixth examples is exemplified. In the first to sixth examples, the position of the second contact portion is selected from, for example, the following position examples B1 to B3 within a range in which the relative positional relationship of each contact portion in each example is satisfied.

[0200] In the position example B1, the position of the second contact portion in the front-rear direction of the bracket 100 is in front with respect to the reference position in the front-rear direction.

[0201] In the position example B2, the position of the second contact portion in the front-rear direction of the bracket 100 is in rear with respect to the reference position in the front-rear direction.

[0202] In the position example B3, the position of the second contact portion in the front-rear direction of the bracket 100 is the same as the reference position in the front-rear direction.

[0203] The position of the third contact portion with respect to the reference position in the front-rear direction in the first to sixth examples is exemplified. In the first to sixth examples, the position of the third contact portion is selected from, for example, the following position examples C1 to C3 within a range in which the relative positional relationship of each contact portion in each example is satisfied.

[0204] In the position example C1, the position of the third contact portion in the front-rear direction of the bracket 100 is in front with respect to the reference position in the front-rear direction.

[0205] In the position example C2, the position of the third contact portion in the front-rear direction of the bracket 100 is in rear with respect to the reference position in the front-rear direction.

[0206] In the position example C3, the position of the third contact portion in the front-rear direction of the bracket 100 is the same as the reference position in the front-rear direction.

[0207] The positional relationship of the first contact portion, the second contact portion, and the third contact portion in the up-down direction of the bracket 100 is exemplified.

[0208] In the first example, the position of the first contact portion in the up-down direction of the bracket 100 is different from the position of the second contact portion and the position of the third contact portion. The first example includes, for example, example 1A and example 1B.

[0209] In example 1A, the position of the first contact portion in the up-down direction of the bracket 100 is in the upper side with respect to the position of the second contact portion and the position of the third contact portion.

[0210] In example 1B, the position of the first contact portion in the up-down direction of the bracket 100 is in the lower side with respect to the position of the second contact portion and the position of the third contact portion.

[0211] In Example 1A or Example 1B, the position of the second contact portion in the upward and downward direction of the support 100 is above, below, or the same as the position of the third contact portion.

[0212] In a second example, the position of the second contact portion in the upward and downward direction of the support 100 is different from the position of the first contact portion and the position of the third contact portion. The second example includes, for example, Example 2A and Example 2B.

[0213] In Example 2A, the position of the second contact portion in the upward and downward direction of the support 100 is above the position of the first contact portion and the position of the third contact portion.

[0214] In Example 2B, the position of the second contact portion in the upward and downward direction of the support 100 is below the position of the first contact portion and the position of the third contact portion.

[0215] In Example 2A or Example 2B, the position of the first contact portion in the upward and downward direction of the support 100 is above, below, or the same as the position of the third contact portion.

[0216] In a third example, the position of the third contact portion in the upward and downward direction of the support 100 is different from the position of the first contact portion and the position of the second contact portion. The third example includes, for example, Example 3A and Example 3B.

[0217] In Example 3A, the position of the third contact portion in the upward and downward direction of the support 100 is above the position of the first contact portion and the position of the second contact portion.

[0218] In Example 3B, the position of the third contact portion in the upward and downward direction of the support 100 is below the position of the first contact portion and the position of the second contact portion.

[0219] In Example 3A or Example 3B, the position of the first contact portion in the upward and downward direction of the support 100 is above, below, or the same as the position of the second contact portion.

[0220] In a fourth example, the position of the first contact portion and the position of the second contact portion in the upward and downward direction of the support 100 are the same. The fourth example includes, for example, Example 4A and Example 4B.

[0221] In Example 4A, the position of the first contact portion and the position of the second contact portion in the upward and downward direction of the support 100 are above the position of the third contact portion.

[0222] In Example 4B, the position of the first contact portion and the position of the second contact portion in the upward and downward direction of the support 100 are below the position of the third contact portion.

[0223] In a fifth example, the position of the first contact portion and the position of the third contact portion in the upward and downward direction of the support 100 are the same. The fifth example includes, for example, Example 5A and Example 5B.

[0224] In Example 5A, the position of the first contact portion and the position of the third contact portion in the up-down direction of the bracket 100 are above the position of the second contact portion.

[0225] In Example 5B, the position of the first contact portion and the position of the third contact portion in the up-down direction of the bracket 100 are below the position of the second contact portion.

[0226] In a sixth example, the position of the second contact portion and the position of the third contact portion in the up-down direction of the bracket 100 are the same. The sixth example includes, for example, Example 6A and Example 6B.

[0227] In Example 6A, the position of the second contact portion and the position of the third contact portion in the up-down direction of the bracket 100 are above the position of the first contact portion.

[0228] In Example 6B, the position of the second contact portion and the position of the third contact portion in the up-down direction of the bracket 100 are below the position of the first contact portion.

[0229] The position of the first contact portion with respect to the reference position in the up-down direction in the first example to the sixth example is exemplified. In the first example to the sixth example, the position of the first contact portion is selected from, for example, the following position examples D1 to D3 within a range in which the relative positional relationship of each contact portion in each example is satisfied.

[0230] The reference position in the up-down direction is selected, for example, from a first reference surface including the center of the pin support portion 230 in the up-down direction of the bracket 100, a first reference surface including the pin center axis LP, or a first reference surface including the wheel center axis LW.

[0231] The first reference surface including the pin center axis LP is determined, for example, with the pin center axis LP in a state in which the scribe wheel C10 is pressed against the workpiece as a reference.

[0232] The first reference surface including the wheel center axis LW is determined, for example, with the wheel center axis LW in a state in which the scribe wheel C10 is pressed against the workpiece as a reference.

[0233] In the position example D1, the position of the first contact portion in the up-down direction of the bracket 100 is above the reference position in the up-down direction.

[0234] In the position example D2, the position of the first contact portion in the up-down direction of the bracket 100 is below the reference position in the up-down direction.

[0235] In the position example D3, the position of the first contact portion in the up-down direction of the bracket 100 is the same as the reference position in the up-down direction.

[0236] The position of the second contact portion with respect to the reference position in the up-down direction in the first to sixth examples is exemplified. In the first to sixth examples, the position of the second contact portion is selected from, for example, the following position examples El to E3 within a range in which the relative positional relationship of the contact portions in each example is satisfied.

[0237] In the position example El, the position of the second contact portion in the up-down direction of the bracket 100 is above with respect to the reference position in the up-down direction.

[0238] In the position example E2, the position of the second contact portion in the up-down direction of the bracket 100 is below with respect to the reference position in the up-down direction.

[0239] In the position example E3, the position of the second contact portion in the up-down direction of the bracket 100 is the same as the reference position in the up-down direction.

[0240] The position of the third contact portion with respect to the reference position in the up-down direction in the first to sixth examples is exemplified. The position of the third contact portion is selected from, for example, the following position examples Fl to F3.

[0241] In the position example Fl, the position of the third contact portion in the up-down direction of the bracket 100 is above with respect to the reference position in the up-down direction.

[0242] In the position example F2, the position of the third contact portion in the up-down direction of the bracket 100 is below with respect to the reference position in the up-down direction.

[0243] In the position example F3, the position of the third contact portion in the up-down direction of the bracket 100 is the same as the reference position in the up-down direction.

[0244] The bracket 100 includes, for example, a tilt support structure SS. The tilt support structure SS is configured to be able to support the scribe wheel C10 in a tilt support state.

[0245] The tilt support state is a state in which the wheel center face C11 is inclined with respect to the reference center face. The reference center face is a plane orthogonal to the pin center axis LP. In a state in which the wheel center face C11 is not inclined with respect to the reference center face, the wheel center face C11 is parallel to the reference center face and orthogonal to the pin center axis LP.

[0246] In the tilt support state, a force that rotates the scribe wheel C10 around a prescribed rotation axis (hereinafter referred to as "rotation force around a prescribed rotation axis") is generated by a reaction of the scribe wheel C10 that occurs as a result of contact with the workpiece.

[0247] The rotation force around the prescribed rotation axis acts in such a manner as to rotate the scribe wheel C10 in a direction in which the wheel center face C11 approaches a state in which the wheel center face C11 is parallel to the reference center face.

[0248] The direction in which the approach wheel center surface C11 approaches a state of being parallel to the reference center surface is the direction in which the approach wheel center surface C11 approaches a state of being orthogonal to the pin center axis LP.

[0249] As examples of the form of the tilt support structure SS, a first form and a second form can be given. The first form includes, for example, first to third examples. The second form includes, for example, first to third examples.

[0250] The tilt support structure SS of the first form is configured so that the pin center axis LP is inclined with respect to the width direction of the bracket 100.

[0251] In the first example of the first form, the pin center axis LP projected onto the first reference surface intersects the X-axis. The pin center axis LP projected onto the second reference surface is parallel to the X-axis.

[0252] In the second example of the first form, the pin center axis LP projected onto the first reference surface is parallel to the X-axis. The pin center axis LP projected onto the second reference surface intersects the X-axis.

[0253] In the third example of the first form, the pin center axis LP projected onto the first reference surface intersects the X-axis. The pin center axis LP projected onto the second reference surface intersects the X-axis.

[0254] The tilt support structure SS of the second form is configured so that at least one of the first support surface 211 of the first support portion 210 and the second support surface 221 of the second support portion 220 is inclined with respect to the front-rear direction of the bracket 100.

[0255] In the configuration in which the first support surface 211 is inclined with respect to the front-rear direction of the bracket 100, the first support surface 211 intersects the third reference surface. In the configuration in which the second support surface 221 is inclined with respect to the front-rear direction of the bracket 100, the second support surface 221 intersects the third reference surface.

[0256] In the first example of the second form, the first support surface 211 of the first support portion 210 and the second support surface 221 of the second support portion 220 are inclined with respect to the front-rear direction of the bracket 100. The first support surface 211 and the second support surface 221 are in a parallel or non-parallel relationship.

[0257] In the second example of the second form, the first support surface 211 of the first support portion 210 is inclined with respect to the front-rear direction of the bracket 100. The second support surface 221 of the second support portion 220 is parallel to the front-rear direction of the bracket 100.

[0258] In the third example of the second form, the first support surface 211 of the first support portion 210 is parallel to the front-rear direction of the bracket 100. The second support surface 221 of the second support portion 220 is inclined with respect to the front-rear direction of the bracket 100.

[0259] In the scribe processing of the workpiece, a plurality of scribe lines are formed on the processed surface of the workpiece through, for example, the following setting process, pressing process, and forming process.

[0260] In the setting process, the scribe head A10 is set to a standby position with respect to the workpiece. The standby position corresponds to the start point of a predetermined scribe line to be formed next.

[0261] In a state where the scribe head A10 is set to the standby position, the scribe wheel C10 is located at a position separated from the workpiece in the vertical direction.

[0262] In the pressing process, the scribe head A10 is moved in the vertical direction to bring the scribe wheel C10 into contact with the workpiece. With the movement of the scribe head A10, the scribe wheel C10 is pressed against the workpiece.

[0263] In the forming process, the scribe head A10 is moved in a prescribed movement direction. The prescribed movement direction is, for example, a straight line direction parallel to the processed surface of the workpiece.

[0264] With the movement of the scribe head A10, the scribe wheel C10 travels on the workpiece. With the travel of the scribe wheel C10, the workpiece is subjected to scribe processing, and a scribe line is formed on the workpiece.

[0265] When the scribe wheel C10 reaches the end point of the scribe line, the scribe head A10 is stopped from moving.

[0266] The setting process, pressing process, and forming process for forming the next scribe line are performed. The setting process, pressing process, and forming process are repeatedly performed in the same manner until the formation of all scribe lines with respect to the workpiece is completed.

[0267] With the scribe wheel C10 being pressed against the workpiece, the attitude of the scribe wheel C10 with respect to the bracket 100 sometimes changes. Hereinafter, this change in attitude is described as "attitude change at the time of contact".

[0268] The attitude change at the time of contact is caused, for example, depending on a gap around the scribe wheel C10 (hereinafter referred to as "around gap").

[0269] The around gap includes, for example, at least one of a gap between the inner circumferential surface C23 and the pin outer circumferential surface D14, a gap between the first wheel side surface C21 and the first support surface 211 of the bracket 100, a gap between the second wheel side surface C22 and the second support surface 221 of the bracket 100, and a gap between the pin outer circumferential surface D14 and the pin support surface 233.

[0270] The attitude of the scribing wheel C10 after the contact-time attitude change is recorded as "attitude before start of travel". The attitude before start of travel is sometimes different each time a contact-time attitude change occurs. The difference in the attitude before start of travel is expressed, for example, in the contact positions of the wheel side surfaces C21, C22 around the center axis of the scribing wheel C10 with the support portion 200.

[0271] The attitude before start of travel sometimes affects the position of the start of the scribing. It is considered that the smaller the degree of difference related to the attitude before start of travel each time a scribing is formed, the higher the processing accuracy of the scribing. The state in which the degree of difference related to the attitude before start of travel is small also includes the case in which the attitude before start of travel is substantially the same.

[0272] In the cradle unit 10 including the tilt support structure SS, the contact-time attitude change is facilitated by the tilt support structure SS. In the case in which the scribing wheel C10 is pressed against the workpiece, the first wheel side surface C21 is brought into contact with the first support surface 211 and the second wheel side surface C22 is brought into contact with the second support surface 221 by the action of the rotational force around the prescribed rotational axis, for example.

[0273] In the cradle unit 10 including the three-point support structure S3, the first wheel side surface C21 comes into contact with the first contact portion and the second contact portion of the first support portion 210 and the second wheel side surface C22 comes into contact with the third contact portion of the second support portion 220 as the contact-time attitude changes.

[0274] Since the scribing wheel C10 is in contact with the support portion 200 at three points, the degree of difference related to the attitude before start of travel each time a scribing is formed is small.

[0275] In the state in which the scribing wheel C10 is traveling on the workpiece, the scribing wheel C10 rotates around the pin D10. The contact positions of the first wheel side surface C21 with the first contact portion and the second contact portion of the first support portion 210 and the contact position of the second wheel side surface C22 with the third contact portion of the second support portion 220 change around the center axis of the scribing wheel C10 in accordance with the rotation of the scribing wheel C10.

[0276] In the state in which the scribing wheel C10 is traveling on the workpiece, the cradle unit 10 rotates around the center axis of the cradle joint B10 in such a manner that the wheel center surface C11 is parallel to the direction of movement of the scribing head A10.

[0277] In one example, in the case in which the wheel center surface C11 is parallel to the direction of movement of the scribing head A10 in the three-point support state, the front-rear direction of the cradle 100 and the third reference surface intersect the direction of movement of the scribing head A10.

[0278] In one example, even when the scribing wheel C10 is traveling, a rotational force around the prescribed rotational axis acts on the scribing wheel C10, and the three-point support state is maintained. This contributes to, for example, stabilization of the posture of the scribing wheel C10 when the scribing wheel C10 is traveling.

[0279] (Second Embodiment)

[0280] The support unit 10 of the second embodiment is configured on the premise of the support unit 10 of the first embodiment.

[0281] In a state in which the scribing wheel C10 is supported by the support 100 including the inclined support structure SS, the wheel center face C11 is inclined with respect to the third reference face of the support 100. In the example shown in FIG. 6, the scribing wheel C10 viewed from the front is overlaid on the first support portion 210 or the second support portion 220. This is common to the scribing wheel C10 indicated by a double-dotted line in other drawings. Figure 6-10

[0282] An example of the first support portion 210 is shown. Regarding the first face structure of the first support face 211, the first support face 211 includes a flat face. Regarding the second face structure of the first support face 211, the first support face 211 includes a concave structure 300 corresponding to the first wheel side face C21. Figure 6-9 The concave structure 300 is provided to the first support face 211. The concave structure 300 includes a groove 310. The groove 310 includes a concave face 301. The first support face 211 includes a base face 211A and the concave face 301.

[0283] The groove 310 includes a front end portion 311 and a rear end portion 312. The front end portion 311 of the groove 310 is open at the front face 100A of the support 100. The rear end portion 312 of the groove 310 is open at the rear face 100B of the support 100.

[0284] The first support face 211 includes a boundary portion 320. The boundary portion 320 corresponds to a boundary between the base face 211A and the concave face 301. The boundary portion 320 includes, for example, an edge formed between the base face 211A and the concave face 301, or a chamfer formed between the base face 211A and the concave face 301.

[0285] The boundary portion 320 includes a first boundary portion 321 and a second boundary portion 322. The first boundary portion 321 is located above the space of the groove 310 in the up-down direction of the support 100. The second boundary portion 322 is located below the space of the groove 310 in the up-down direction of the support 100.

[0286]

[0287] ​The first boundary portion 321 includes the first contact portion 200A. The position of the first contact portion 200A in the front-rear direction of the bracket 100 is rearward with respect to a reference position in the front-rear direction. The position of the first contact portion 200A in the up-down direction of the bracket 100 is upward with respect to a reference position in the up-down direction.

[0288] The second boundary portion 322 includes the second contact portion 200B. The position of the second contact portion 200B in the front-rear direction of the bracket 100 is rearward with respect to a reference position in the front-rear direction. The position of the second contact portion 200B in the up-down direction of the bracket 100 is downward with respect to a reference position in the up-down direction.

[0289] The relationship between the position of each boundary portion 321, 322 and the pin support portion 230 is exemplified.

[0290] In the first example, the first boundary portion 321 overlaps the pin support portion 230. The second boundary portion 322 overlaps the pin support portion 230. Figure 6 An example of the first support portion 210 corresponding to the first example is shown.

[0291] In the configuration in which the first boundary portion 321 overlaps the pin support portion 230, the first boundary portion 321 is divided into a portion located forward with respect to the pin support portion 230 in the front-rear direction of the bracket 100 and a portion located rearward with respect to the pin support portion 230 in the front-rear direction of the bracket 100.

[0292] In the configuration in which the second boundary portion 322 overlaps the pin support portion 230, the second boundary portion 322 is divided into a portion located forward with respect to the pin support portion 230 in the front-rear direction of the bracket 100 and a portion located rearward with respect to the pin support portion 230 in the front-rear direction of the bracket 100.

[0293] In the second example, the first boundary portion 321 is located upward with respect to the pin support portion 230 in the up-down direction of the bracket 100. The second boundary portion 322 overlaps the pin support portion 230. Figure 7 An example of the first support portion 210 corresponding to the second example is shown.

[0294] In the third example, the first boundary portion 321 overlaps the pin support portion 230. The second boundary portion 322 is located upward with respect to the pin support portion 230 in the up-down direction of the bracket 100. Figure 8 An example of the first support portion 210 corresponding to the third example is shown.

[0295] In the fourth example, the first boundary portion 321 is located upward with respect to the pin support portion 230 in the up-down direction of the bracket 100. The second boundary portion 322 is located downward with respect to the pin support portion 230 in the up-down direction of the bracket 100. Figure 9An example of the first support portion 210 corresponding to the fourth example is shown.

[0296] A relationship between the distance of each boundary portion 321, 322 from the reference position in the up-down direction is exemplified.

[0297] In the first example, the distance of the first boundary portion 321 from the reference position in the up-down direction is equal to the distance of the second boundary portion 322 from the reference position in the up-down direction. Figure 6 、 Figure 9 An example of the first support portion 210 corresponding to the first example is shown.

[0298] In the second example, the distance of the first boundary portion 321 from the reference position in the up-down direction is longer than the distance of the second boundary portion 322 from the reference position in the up-down direction. Figure 7 An example of the first support portion 210 corresponding to the second example is shown.

[0299] In the third example, the distance of the first boundary portion 321 from the reference position in the up-down direction is shorter than the distance of the second boundary portion 322 from the reference position in the up-down direction. Figure 8 An example of the first support portion 210 corresponding to the third example is shown.

[0300] A relationship between the center line of the groove 310 and the front-rear direction of the bracket 100 is exemplified. The center line of the groove 310 is prescribed, for example, at the middle of the first boundary portion 321 and the second boundary portion 322.

[0301] In the first example, the center line of the groove 310 is parallel to the front-rear direction of the bracket 100. Each boundary portion 321, 322 is parallel to the front-rear direction of the bracket 100. Figure 6-9 An example of the first support portion 210 corresponding to the first example is shown.

[0302] In the second example, the center line of the groove 310 intersects the front-rear direction of the bracket 100. The second example includes Example 2A and Example 2B.

[0303] In Example 2A, the center line of the groove 310 intersects the front-rear direction of the bracket 100 in such a manner that it goes upward toward the bracket 100 as it goes forward toward the bracket 100.

[0304] In Example 2B, the center line of the groove 310 intersects the front-rear direction of the bracket 100 in such a manner that it goes downward toward the bracket 100 as it goes forward toward the bracket 100.

[0305] The interval of the first boundary portion 321 and the second boundary portion 322 is referred to as a "recess interval". The recess interval corresponds, for example, to the distance of the first boundary portion 321 and the second boundary portion 322 in a direction orthogonal to the center line of the groove 310.

[0306] In one example, the recess interval is determined in such a manner that each contact portion 200A, 200B is in contact with the first wheel side surface C21. The recess interval is, for example, smaller than the diameter of the first wheel side surface C21. The recess interval in the direction along the center line of the groove 310 is exemplified.

[0307] In a first example, the recess interval is constant in the direction along the center line of the groove 310. Figure 6-9 An example of the first support portion 210 corresponding to the first example is shown.

[0308] In a second example, the recess interval is different in the direction along the center line of the groove 310. The second example includes, for example, Example 2A, Example 2B, Example 2C, and Example 2D.

[0309] In Example 2A, the recess interval widens from the front end portion 311 toward the rear end portion 312 of the groove 310.

[0310] In Example 2B, the recess interval narrows from the front end portion 311 toward the rear end portion 312 of the groove 310.

[0311] In Example 2C, the recess interval widens from the front end portion 311 and the rear end portion 312 of the groove 310 toward the pin support portion 230.

[0312] In Example 2D, the recess interval narrows from the front end portion 311 and the rear end portion 312 of the groove 310 toward the pin support portion 230.

[0313] The interval of the recess surface 301 in the groove 310 from the opening of the groove 310 is referred to as "recess depth". The recess depth corresponds, for example, to the distance between the recess surface 301 and the opening of the groove 310 in the direction orthogonal to the first support surface 211.

[0314] In one example, the recess depth is determined in such a manner that, in a state where the first contact portion 200A and the second contact portion 200B are in contact with the first wheel side surface C21, a non-contact portion is formed on the first wheel side surface C21. The recess depth in the direction along the center line of the groove 310 is exemplified.

[0315] In a first example, the recess depth is constant in the direction along the center line of the groove 310.

[0316] In a second example, the recess depth is different in the direction along the center line of the groove 310. The second example includes, for example, Example 2A, Example 2B, Example 2C, and Example 2D.

[0317] In Example 2A, the recess depth deepens from the front end portion 311 toward the rear end portion 312 of the groove 310.

[0318] In Example 2B, the recess depth shallows from the front end portion 311 toward the rear end portion 312 of the groove 310.

[0319] In Example 2C, the recess depth becomes deeper from the front end portion 311 and the rear end portion 312 of the groove 310 toward the pin support portion 230.

[0320] In Example 2D, the recess depth becomes shallower from the front end portion 311 and the rear end portion 312 of the groove 310 toward the pin support portion 230.

[0321] Figure 10 An example of the second support portion 220 is shown. With respect to the first surface structure of the second support surface 221, the second support surface 221 includes a flat surface. With respect to the second surface structure of the second support surface 221, the second support surface 221 does not include a concave structure and a convex structure.

[0322] The second support surface 221 includes a third contact portion 200C. The third contact portion 200C is a portion of the second support surface 221. The position of the third contact portion 200C in the front-rear direction of the holder 100 is in front with respect to the reference position in the front-rear direction.

[0323] The inclined support structure SS is configured such that a rotational force around a prescribed rotational axis acts in a direction in which the rear portion of the first wheel side surface C21 approaches the first support surface 211 and the front portion of the second wheel side surface C22 approaches the second support surface 221.

[0324] The rear portion of the first wheel side surface C21 is a portion of the first wheel side surface C21 that is further in the rear with respect to the reference position in the front-rear direction.

[0325] The front portion of the second wheel side surface C21 is a portion of the second wheel side surface C22 that is further in the front with respect to the reference position in the front-rear direction.

[0326] In a state in which the scribing wheel C10 is pressed against a workpiece, the first wheel side surface C21 contacts the first contact portion 200A and the second contact portion 200B, and the second wheel side surface C22 contacts the third contact portion 200C.

[0327] A first contact point PA is formed by the contact of the first wheel side surface C21 with the first contact portion 200A of the first support portion 210. A second contact point PB is formed by the contact of the first wheel side surface C21 with the second contact portion 200B of the first support portion 210. A third contact point PC is formed by the contact of the second wheel side surface C22 with the third contact portion 200C of the second support portion 220.

[0328] In an example, the first contact point PA and the second contact point PB are formed in a portion of the first wheel side surface C21 that includes the boundary portion C40. The third contact point PC is formed in a portion of the second wheel side surface C22 that includes the boundary portion C40.

[0329] The positions of the first contact point PA and the second contact point PB in the front-rear direction of the bracket 100 are behind the reference position in the front-rear direction. The position of the third contact point PC in the front-rear direction of the bracket 100 is in front of the reference position in the front-rear direction.

[0330] Figure 11 The front surface of the scribe wheel C10 in the three-point support state is shown. The first line segment L1 is a line segment connecting the wheel center axis LW and the first contact point PA. The second line segment L2 is a line segment connecting the wheel center axis LW and the second contact point PB. The third line segment L3 is a line segment connecting the first contact point PA and the second contact point PB. The contact angle T is an angle formed by the first line segment L1 and the second line segment L2.

[0331] In one example, the support portion 200 is configured so that the contact angle T is included in a range below the reference contact angle T. The reference contact angle T is selected, for example, from 135°, 90°, 80°, 70°, 60°, 50°, or 45°.

[0332] The length of the third line segment L3 corresponds to the recess interval corresponding to the first contact portion 200A and the second contact portion 200B.

[0333] The length of the third line segment L3 is exemplified. The third line segment L3 is shorter than, longer than, or equal to the diameter of the through-hole C24 of the scribe wheel C10.

[0334] (Third Embodiment)

[0335] The bracket unit 10 of the third embodiment is configured on the premise of the bracket unit 10 of the second embodiment.

[0336] In the bracket unit 10 of the third embodiment, the position of the front end portion 311 of the groove 310 is different from that of the bracket unit 10 of the embodiment serving as the premise. The bracket unit 10 of the third embodiment is the same as the bracket unit 10 of the embodiment serving as the premise in other respects.

[0337] The front end portion 311 of the groove 310 is disposed behind the front surface 100A of the bracket 100 in the front-rear direction of the bracket 100. The front end portion 311 of the groove 310 is not opened at the front surface 100A of the bracket 100. The position of the front end portion 311 of the groove 310 is exemplified.

[0338] In the first example, the front end portion 311 of the groove 310 is disposed between the front surface 100A of the bracket 100 and the pin support portion 230 in the front-rear direction of the bracket 100.

[0339] In the second example, the front end portion 311 of the groove 310 is disposed so as to overlap the pin support portion 230 in the front-rear direction of the bracket 100.

[0340] In the third example, the front end portion 311 of the groove 310 is provided between the rear surface 100B of the stand 100 and the pin support portion 230 in the front-rear direction of the stand 100.

[0341] The configuration of the groove 310 exemplified in the third embodiment can be applied to all the grooves 310 exemplified in the embodiments as a premise.

[0342] (Fourth Embodiment)

[0343] The stand unit 10 of the fourth embodiment is configured on the premise of the stand unit 10 of the second embodiment or the third embodiment.

[0344] In the stand unit 10 of the fourth embodiment, the position of the rear end portion 312 of the groove 310 is different from that of the stand unit 10 of the embodiments as a premise. The other aspects of the stand unit 10 of the fourth embodiment are the same as those of the stand unit 10 of the embodiments as a premise.

[0345] The rear end portion 312 of the groove 310 is provided in front of the rear surface 100B of the stand 100 with respect to the rear surface 100B of the stand 100 in the front-rear direction of the stand 100. The rear end portion 312 of the groove 310 is not opened at the rear surface 100B of the stand 100.

[0346] The rear end portion 312 of the groove 310 is provided between the rear surface 100B of the stand 100 and the pin support portion 230 in the front-rear direction of the stand 100.

[0347] The configuration of the groove 310 exemplified in the fourth embodiment can be applied to all the grooves 310 exemplified in the embodiments as a premise.

[0348] (Fifth Embodiment)

[0349] The stand unit 10 of the fifth embodiment is configured on the premise of the stand unit 10 of the second embodiment. Figure 12 An example of the first support portion 210 is shown. Figure 13 An example of the second support portion 220 is shown.

[0350] In the stand unit 10 of the fifth embodiment, the positions of the contact points around the central axis of the scribing wheel C10 are different from those of the stand unit 10 of the embodiments as a premise. The other aspects of the stand unit 10 of the fifth embodiment are the same as those of the stand unit 10 of the embodiments as a premise.

[0351] The configuration of the first support portion 210 of the fifth embodiment is different from that of the first support portion 210 of the embodiments as a premise in the following aspects.

[0352] The positions of the first contact portion 200A and the second contact portion 200B in the front-rear direction of the bracket 100 are in front of the reference positions in the front-rear direction.

[0353] The configuration of the second support portion 220 of the fifth embodiment differs from the configuration of the second support portion 220 in the embodiment serving as a premise in the following aspects.

[0354] The position of the third contact portion 200C in the front-rear direction of the bracket 100 is in rear of the reference position in the front-rear direction.

[0355] The tilt support structure SS is configured so that a rotational force around a prescribed rotational axis acts in a direction in which the first wheel side face C21 approaches the first support face 211 in the front portion, and the second wheel side face C22 approaches the second support face 221 in the rear portion.

[0356] In a state in which the scribing wheel C10 is pressed against the workpiece, the first wheel side face C21 contacts the first contact portion 200A and the second contact portion 200B, and the second wheel side face C22 contacts the third contact portion 200C.

[0357] The positions of the first contact point PA and the second contact point PB in the front-rear direction of the bracket 100 are in front of the reference positions in the front-rear direction. The position of the third contact point PC in the front-rear direction of the bracket 100 is in rear of the reference position in the front-rear direction.

[0358] Figure 14 The front face of the scribing wheel C10 in the three-point support state is shown. The first line segment L1 is a line segment connecting the wheel center axis LW and the first contact point PA. The second line segment L2 is a line segment connecting the wheel center axis LW and the second contact point PB. The third line segment L3 is a line segment connecting the first contact point PA and the second contact point PB. The contact angle T is an angle formed by the first line segment L1 and the second line segment L2.

[0359] In one example, the support portion 200 is configured so that the contact angle T is included in a range that is equal to or less than a reference contact angle T. The reference contact angle T is selected, for example, from among 135°, 90°, 80°, 70°, 60°, 50°, or 45°.

[0360] The length of the third line segment L3 corresponds to the recess interval corresponding to the first contact portion 200A and the second contact portion 200B.

[0361] The length of the third line segment L3 is exemplified. The third line segment L3 is shorter than, longer than, or equal to the diameter of the through-hole C24 of the scribing wheel C10.

[0362] (Sixth Embodiment)

[0363] The support unit 10 of the sixth embodiment is configured on the premise of the support unit 10 of the fifth embodiment.

[0364] In the support unit 10 of the sixth embodiment, the position of the rear end portion 312 of the groove 310 is different from that of the support unit 10 of the embodiment on the premise. The other aspects of the support unit 10 of the sixth embodiment are the same as those of the support unit 10 of the embodiment on the premise.

[0365] The rear end portion 312 of the groove 310 is disposed forward in the front-rear direction of the support 100 with respect to the rear surface 100B of the support 100. The rear end portion 312 of the groove 310 is not opened at the rear surface 100B of the support 100. The position of the rear end portion 312 of the groove 310 is exemplified.

[0366] In the first example, the rear end portion 312 of the groove 310 is disposed between the rear surface 100B of the support 100 and the pin support portion 230 in the front-rear direction of the support 100.

[0367] In the second example, the rear end portion 312 of the groove 310 is disposed so as to overlap the pin support portion 230 in the front-rear direction of the support 100.

[0368] In the third example, the rear end portion 312 of the groove 310 is disposed between the front surface 100A of the support 100 and the pin support portion 230 in the front-rear direction of the support 100.

[0369] The configuration of the groove 310 exemplified in the sixth embodiment can be applied to all the grooves 310 exemplified in the embodiments on the premise.

[0370] (SEVENTH EMBODIMENT)

[0371] The support unit 10 of the seventh embodiment is configured on the premise of the support unit 10 of the fifth embodiment or the sixth embodiment.

[0372] In the support unit 10 of the seventh embodiment, the position of the front end portion 311 of the groove 310 is different from that of the support unit 10 of the embodiment on the premise. The other aspects of the support unit 10 of the seventh embodiment are the same as those of the support unit 10 of the embodiment on the premise.

[0373] The front end portion 311 of the groove 310 is disposed rearward in the front-rear direction of the support 100 with respect to the front surface 100A of the support 100. The front end portion 311 of the groove 310 is not opened at the front surface 100A of the support 100.

[0374] The front end portion 311 of the groove 310 is disposed between the front surface 100A of the support 100 and the pin support portion 230 in the front-rear direction of the support 100.

[0375] The configuration of the groove 310 of the seventh embodiment can be applied to all the grooves 310 exemplified in the embodiments as a premise.

[0376] (Eighth Embodiment)

[0377] The holder unit 10 of the eighth embodiment is configured on the premise of the holder unit 10 of the second embodiment. Figure 15 An example of the first support portion 210 is shown.

[0378] In the holder unit 10 of the eighth embodiment, the configurations of the first contact portion 200A and the second contact portion 200B of the first support portion 210 are different from those of the holder unit 10 of the embodiments as a premise. The other aspects of the holder unit 10 of the eighth embodiment are the same as those of the holder unit 10 of the embodiments as a premise.

[0379] Regarding the first surface structure of the first support surface 211, the first support surface 211 includes a flat surface. Regarding the second surface structure of the first support surface 211, the first support surface 211 includes a convex structure 400.

[0380] The convex structure 400 is provided to the first support surface 211. The convex structure 400 includes a first convex portion 410 and a second convex portion 420. Each convex portion 410, 420 is, for example, an elongated rib.

[0381] The first convex portion 410 includes a convex surface 401. The second convex portion 420 includes the convex surface 401. The first support surface 211 includes a base surface 211A and the convex surface 401. Each convex portion 410, 420 protrudes with respect to the base surface 211A.

[0382] The first convex portion 410 includes a front end portion 411 and a rear end portion 412. The front end portion 411 of the first convex portion 410 is located at the front surface 100A of the holder 100. The rear end portion 412 of the first convex portion 410 is located at the rear surface 100B of the holder 100.

[0383] The first convex portion 410 includes the first contact portion 200A. The position of the first contact portion 200A in the front-rear direction of the holder 100 is rearward with respect to a reference position in the front-rear direction. The position of the first contact portion 200A in the up-down direction of the holder 100 is upward with respect to a reference position in the up-down direction.

[0384] The first convex portion 410 includes a top portion 413. The top portion 413 of the first convex portion 410 configures the first contact portion 200A. The shape of the top portion 413 of the first convex portion 410 is, for example, a spherical surface, a flat surface, or a mountain shape including an edge.

[0385] The second protrusion 420 includes a front end portion 421 and a rear end portion 422. The front end portion 421 of the second protrusion 420 is located at the front surface 100A of the bracket 100. The rear end portion 422 of the second protrusion 420 is located at the rear surface 100B of the bracket 100.

[0386] The second protrusion 420 includes a second contact portion 200B. The position of the second contact portion 200B in the front-rear direction of the bracket 100 is located rearward with respect to a reference position in the front-rear direction. The position of the second contact portion 200B in the up-down direction of the bracket 100 is located downward with respect to a reference position in the up-down direction.

[0387] The second protrusion 420 includes a top portion 423. The top portion 423 of the second protrusion 420 constitutes the second contact portion 200B. The shape of the top portion 423 of the second protrusion 420 is, for example, a spherical surface, a flat surface, or a mountain shape including an edge.

[0388] The first protrusion 410 and the second protrusion 420 are provided at intervals in the up-down direction of the bracket 100. The first protrusion 410 is located upward with respect to the second protrusion 420 in the up-down direction of the bracket 100.

[0389] The relationship between the positions of the protrusions 410, 420 and the pin support portion 230 is exemplified.

[0390] In the first example, the first protrusion 410 overlaps the pin support portion 230. The second protrusion 420 overlaps the pin support portion 230. Figure 15 An example of the first support portion 210 corresponding to the first example is shown.

[0391] In the configuration in which the first protrusion 410 overlaps the pin support portion 230, the first protrusion 410 is divided into a portion located forward with respect to the pin support portion 230 in the front-rear direction of the bracket 100 and a portion located rearward with respect to the pin support portion 230 in the front-rear direction of the bracket 100.

[0392] In the configuration in which the second protrusion 420 overlaps the pin support portion 230, the second protrusion 420 is divided into a portion located forward with respect to the pin support portion 230 in the front-rear direction of the bracket 100 and a portion located rearward with respect to the pin support portion 230 in the front-rear direction of the bracket 100.

[0393] The height of the first protrusion 410 is, for example, equivalent to the distance between the base and the top of the first protrusion 410 in a direction orthogonal to the first support surface 211. The height of the second protrusion 420 is, for example, equivalent to the distance between the base and the top of the second protrusion 420 in a direction orthogonal to the first support surface 211.

[0394] In one example, the height of the first protrusions 410 and the height of the second protrusions 420 are determined in such a manner that a non-contact portion is formed on the first wheel side surface C21 in a state where the first contact portion 200A and the second contact portion 200B are in contact with the first wheel side surface C21. The height of each of the protrusions 410, 420 in the front-rear direction of the holder 100 is exemplified.

[0395] In the first example, the height of each of the protrusions 410, 420 is constant in the front-rear direction of the holder 100.

[0396] In the second example, the height of each of the protrusions 410, 420 is different in the front-rear direction of the holder 100.

[0397] The relationship between the height of the first contact portion 200A and the height of the second contact portion 200B is exemplified. The height of the first contact portion 200A is the same as, higher than, or lower than the height of the second contact portion 200B.

[0398] The inclined support structure SS is configured such that a rotational force around a prescribed rotational axis acts in a direction in which the first wheel side surface C21 approaches the first support surface 211 toward the rear portion thereof and the second wheel side surface C22 approaches the second support surface 221 toward the front portion thereof.

[0399] In a state where the scribing wheel C10 is pressed against the workpiece, the first wheel side surface C21 is in contact with the first contact portion 200A and the second contact portion 200B, and the second wheel side surface C22 is in contact with the third contact portion 200C.

[0400] The positions of the first contact point PA and the second contact point PB in the front-rear direction of the holder 100 are in the rear direction with respect to the reference position in the front-rear direction. The position of the third contact point PC in the front-rear direction of the holder 100 is in the front direction with respect to the reference position in the front-rear direction.

[0401] The relationship of each of the line segments L1 to L3 and the magnitude of the contact angle T in the three-point support state are the same as in the second embodiment, for example.

[0402] (Ninth Embodiment)

[0403] The holder unit 10 of the ninth embodiment is configured on the premise of the holder unit 10 of the eighth embodiment. Figure 16 An example of the first support portion 210 is shown.

[0404] In the holder unit 10 of the ninth embodiment, the shape of the first protrusions 410 is different from that of the holder unit 10 of the embodiment on the premise. The other aspects of the holder unit 10 of the ninth embodiment are the same as those of the holder unit 10 of the embodiment on the premise.

[0405] The position of the first protrusion 410 in the front-rear direction of the holder 100 is behind the reference position in the front-rear direction. The shape of the first protrusion 410 is columnar. The first protrusion 410 includes the first contact portion 200A.

[0406] The first protrusion 410 includes a top portion 413. The top portion 413 of the first protrusion 410 constitutes the first contact portion 200A. The shape of the top portion 413 of the first protrusion 410 is, for example, a spherical surface, a flat surface, or a mountain shape including an edge.

[0407] (Tenth Embodiment)

[0408] The holder unit 10 of the tenth embodiment is configured on the premise of the holder unit 10 of the eighth embodiment. Figure 17 An example of the first support portion 210 is shown.

[0409] In the holder unit 10 of the tenth embodiment, the shape of the second protrusion 420 is different from that of the holder unit 10 of the embodiment on the premise. The other aspects of the holder unit 10 of the tenth embodiment are the same as those of the holder unit 10 of the embodiment on the premise.

[0410] The position of the second protrusion 420 in the front-rear direction of the holder 100 is behind the reference position in the front-rear direction. The shape of the second protrusion 420 is columnar. The second protrusion 420 includes the second contact portion 200B.

[0411] The second protrusion 420 includes a top portion 423. The top portion 423 of the second protrusion 420 constitutes the second contact portion 200B. The shape of the top portion 423 of the second protrusion 420 is, for example, a spherical surface, a flat surface, or a mountain shape including an edge.

[0412] (Eleventh Embodiment)

[0413] The holder unit 10 of the eleventh embodiment is configured on the premise of the holder unit 10 of any one of the first to fourth and eighth to tenth embodiments.

[0414] In the holder unit 10 of the eleventh embodiment, the configuration of the third contact portion 200C of the second support portion 220 is different from that of the holder unit 10 of the embodiment on the premise. The other aspects of the holder unit 10 of the eleventh embodiment are the same as those of the holder unit 10 of the embodiment on the premise.

[0415] Regarding the first surface structure of the second support surface 221, the second support surface 221 includes a flat surface. Regarding the second surface structure of the second support surface 221, the second support surface 221 includes the protrusion structure 400.

[0416] The protrusion structure 400 is provided to the second support surface 221. The protrusion structure 400 includes a third protrusion 430. The third protrusion 430 is, for example, an elongated rib.

[0417] The third protrusion 430 includes the convex surface 401. The second support surface 221 includes the base surface 211A and the convex surface 401. The third protrusion 430 protrudes with respect to the base surface 211A.

[0418] The third protrusion 430 includes a front end portion 431 and a rear end portion 432. The front end portion 431 of the third protrusion 430 is located at the front surface 100A of the bracket 100. The rear end portion 432 of the third protrusion 430 is located at the rear surface 100B of the bracket 100.

[0419] The third protrusion 430 includes the third contact portion 200C. The position of the third contact portion 200C in the front-rear direction of the bracket 100 is located rearward with respect to a reference position in the front-rear direction. The position of the first contact portion 200A in the up-down direction of the bracket 100 is located upward, downward, or the same with respect to a reference position in the up-down direction.

[0420] The third protrusion 430 includes a top portion 433. The top portion 433 of the third protrusion 430 constitutes the third contact portion 200C. The shape of the top portion 433 of the third protrusion 430 is, for example, a spherical surface, a flat surface, or a mountain shape including an edge.

[0421] The relationship between the position of the third protrusion 430 and the pin support portion 230 is exemplified.

[0422] In a first example, the third protrusion 430 overlaps the pin support portion 230. Figure 18 An example of the second support portion 220 corresponding to the first example is shown.

[0423] In a configuration in which the third protrusion 430 overlaps the pin support portion 230, the third protrusion 430 is divided into a portion located forward with respect to the pin support portion 230 in the front-rear direction of the bracket 100 and a portion located rearward with respect to the pin support portion 230 in the front-rear direction of the bracket 100.

[0424] In an example, the height of the third protrusion 430 is determined in such a manner that a non-contact portion is formed on the second wheel side surface C22 in a state in which the third contact portion 200C contacts the second wheel side surface C22. The height of the third protrusion 430 in the length direction of the third protrusion 430 is exemplified.

[0425] In a first example, the height of the third protrusion 430 is constant in the length direction of the third protrusion 430.

[0426] In a second example, the height of the third protrusion 430 is different in the length direction of the third protrusion 430.

[0427] The inclined support structure SS is configured so that a rotational force around a prescribed rotational axis acts in a direction in which the first support surface 211 is approached toward the rear of the first wheel side surface C21 and the second support surface 221 is approached toward the front of the second wheel side surface C22.

[0428] When the scribe wheel C10 is pressed against the workpiece, the first wheel side surface C21 contacts the first contact portion 200A and the second contact portion 200B, and the second wheel side surface C22 contacts the third contact portion 200C.

[0429] The positions of the first contact point PA and the second contact point PB in the front-rear direction of the bracket 100 are located rearward with respect to the reference position in the front-rear direction. The position of the third contact point PC in the front-rear direction of the bracket 100 is located forward with respect to the reference position in the front-rear direction.

[0430] (12th Embodiment)

[0431] The bracket assembly A30 of the 12th embodiment is configured on the premise of at least one of the first through 11th embodiments. Figure 19-21 An example of the bracket assembly A30 is shown.

[0432] As examples of the configuration related to the combination of the bracket joint B10 and the bracket 100, a first combination configuration and a second combination configuration can be given. In the first combination configuration, the bracket 100 is integrally configured with the bracket joint B10. In the second combination configuration, the bracket 100 is separately configured from the bracket joint B10.

[0433] Figure 19 An example of the first combination configuration is shown. In the first combination configuration, the bracket joint B10 includes a base portion B11. The base portion B11 is mounted to the bracket joint holder A12. The base portion B11 includes a bearing portion B20 and a shaft B12.

[0434] The bearing portion B20 supports the shaft B12. The center axis of the shaft B12 defines a joint center axis LJ that is the center axis of the bracket joint B10.

[0435] The main body portion 110 of the bracket 100 is combined with the shaft B12. The relationship between the shaft B12 and the main body portion 110 is exemplified.

[0436] In a first example, the main body portion 110 is integrally configured with the shaft B12. In a second example, the main body portion 110 is separately configured from the shaft B12. The main body portion 110 is combined with the shaft B12 in a detachable manner or a non-detachable manner.

[0437] The configuration of the bearing portion B20 is exemplified. In a first example, the bearing portion B20 includes one or more radial bearings B30. In a second example, the bearing portion B20 includes a housing B21, a stopper B40, and at least one of a spacer in addition to the configuration of the first example.

[0438] In the illustrated example, the bearing portion B20 includes two radial bearings B30, the housing B21, and the stopper B40.

[0439] The inner ring B31 of the radial bearing B30 is fixed to the shaft B12. The housing B21 houses the radial bearing B30. The outer ring B32 of the radial bearing B30 is fixed to the housing B21.

[0440] The shaft B12, the inner ring B31, and the bracket 100 rotate with respect to the outer ring B32 and the housing B21 around the joint center axis LJ. In the example in which the bearing portion B20 includes the spacer, the spacer is provided between the one radial bearing B30 and the other radial bearing B30. The spacer is fixed to the shaft B12.

[0441] The stopper B40 includes, for example, a first stopper B41. The first stopper B41 is provided to the front end of the shaft B12. The first stopper B41 includes a first restriction surface B41A that restricts movement of the radial bearing B30.

[0442] The configuration of the first stopper B41 is exemplified. The first stopper B41 includes a threaded fastener that engages with the female threaded portion of the shaft B12.

[0443] The threaded fastener includes, for example, a screw or a bolt. The head portion of the threaded fastener constitutes the first restriction surface B41A. The end surface of the inner ring B31 of the one radial bearing B30 contacts the first restriction surface B41A.

[0444] The stopper B40 includes, for example, a second stopper B42. The second stopper B42 is provided to the root portion of the shaft B12. The second stopper B42 includes a second restriction surface B42A that restricts movement of the radial bearing B30.

[0445] The configuration of the second stopper B42 is exemplified. The second stopper B42 includes a flange that is provided around the shaft B12. The end surface of the flange constitutes the second restriction surface B42A. The end surface of the inner ring B31 of the other radial bearing B30 contacts the second restriction surface B42A.

[0446] Figure 20 A first example of the second combined form is shown. In the first example of the second combined form, the bracket joint B10 includes the base portion B11 and a bracket mounting portion B50. The bracket mounting portion B50 includes a pedestal B60.

[0447] The base B60 includes, for example, a first plate B61. The first plate B61 determines the position of the holder 100 in the direction along the joint center axis LJ.

[0448] The base B60 includes, for example, a second plate B62. The second plate B62 determines the position of the holder 100 in the direction orthogonal to the joint center axis LJ.

[0449] The base B60 is combined with the shaft B12. The relationship between the shaft B12 and the base B60 is exemplified.

[0450] In a first example, the base B60 is integrally formed with the shaft B12. In a second example, the base B60 is formed separately from the shaft B12. The base B60 is combined with the shaft B12 in a detachable manner or a non-detachable manner. In one example, the first plate B61 is combined with the shaft B12.

[0451] Figure 21 A second example of the second combined form is shown. In the second example of the second combined form, the holder joint B10 includes the base portion B11 and the holder mounting portion B50.

[0452] The holder mounting portion B50 includes a socket B70. The socket B70 includes, for example, a disposition space B71. The disposition space B71 is formed so as to be able to dispose the main body portion 110 of the holder 100.

[0453] The socket B70 is combined with the shaft B12. The relationship between the shaft B12 and the socket B70 is exemplified.

[0454] In a first example, the socket B70 is integrally formed with the shaft B12. In a second example, the socket B70 is formed separately from the shaft B12. The socket B70 is combined with the shaft B12 in a detachable manner or a non-detachable manner.

[0455] The bearing portion B20 included in the holder 100 and the holder joint B10 of the second combined form is formed, for example, in the same manner as the bearing portion B20 included in the holder 100 and the holder joint B10 of the first combined form.

[0456] The shaft B12, the inner ring B31, the holder mounting portion B50, and the holder 100 rotate with respect to the outer ring B32 and the housing B21 around the joint center axis LJ.

[0457] In one example, when the holder assembly A30 is viewed from the side, the wheel center axis LW and the contact point of the scribe wheel C10 with the machined surface are located on the holder center axis LH.

[0458] The relationship between the joint center axis LJ and the wheel center axis LW is exemplified. In a first example, a trail amount is set between the joint center axis LJ and the wheel center axis LW. In a second example, no trail amount is set between the joint center axis LJ and the wheel center axis LW.

[0459] The trajectory amount is the distance between the joint center axis LJ and the intersection of the scribe wheel C10 and the workpiece. As shown in the bracket assembly A30 viewed from the side Figure 19-21 The joint center axis LJ is parallel to the bracket center axis LH.

[0460] The distance between the joint center axis LJ and the bracket center axis LH corresponds to the trajectory amount. In a configuration in which the trajectory amount is set, in a case in which the wheel center axis LW is located further rearward than the joint center axis LJ in the scanning direction of the scribe wheel C10, the straightness of the scribe wheel C10 becomes higher.

[0461] In a case in which the bracket assembly A30 includes the bracket 100 and the bracket joint B10 in the second combined configuration, the bracket assembly A30 further includes a linking structure A31.

[0462] The linking structure A31 links the bracket joint B10 and the bracket 100. The linking structure A31 includes, for example, at least one of a mechanical coupling portion A31A that links the bracket joint B10 and the bracket 100 by a mechanical coupling method, and a magnetic coupling portion A31B that links the bracket joint B10 and the bracket 100 by a magnetic coupling method.

[0463] In Figure 19 , Figure 20 In the example shown, the linking structure A31 includes the mechanical coupling portion A31A. The configuration of the mechanical coupling portion A31A is exemplified.

[0464] In a first example, the mechanical coupling portion A31A links the bracket mounting portion B50 and the main body portion 110 of the bracket 100 by a threaded fastener. The threaded fastener includes a screw or a bolt.

[0465] In a second example, the mechanical coupling portion A31A links the bracket mounting portion B50 and the main body portion 110 of the bracket 100 by a fitting portion. The fitting portion includes a first fitting portion provided to one of the bracket mounting portion B50 and the main body portion 110 of the bracket 100, and a second fitting portion provided to the other of the bracket mounting portion B50 and the main body portion 110 of the bracket 100.

[0466] In the example shown, the mechanical coupling portion A31A includes a female screw portion provided to the bracket mounting portion B50, a through-hole provided to the main body portion 110 of the bracket 100, and a threaded fastener.

[0467] The threaded fastener is inserted into the through-hole of the main body portion 110 of the bracket 100, and engages with the female screw portion of the bracket mounting portion B50. The main body portion 110 of the bracket 100 is fixed to the bracket mounting portion B50 by the threaded fastener.

[0468] InFigure 21 In the example shown, the coupling structure A31 includes a magnetic coupling portion A31B. The configuration of the magnetic coupling portion A31B is exemplified.

[0469] In a first example, the magnetic coupling portion A31B includes a permanent magnet provided to the socket B70 and a magnetic body provided to the main body portion 110 of the holder 100.

[0470] In a second example, the magnetic coupling portion A31B includes a magnetic body provided to the socket B70 and a permanent magnet provided to the main body portion 110 of the holder 100.

[0471] In a third example, the magnetic coupling portion A31B includes a permanent magnet provided to the socket B70 and a permanent magnet provided to the main body portion 110 of the holder 100. The holder 100 is held to the socket B70 by magnetic force acting between the permanent magnets and the magnetic body or by magnetic force acting between the permanent magnets.

[0472] In a case where the coupling structure A31 includes the magnetic coupling portion A31B, in one example, the holder mounting portion B50 further has a holder restricting portion B80. The holder restricting portion B80 contacts the holder 100 to stabilize the position of the holder 100 with respect to the socket B70.

[0473] The holder restricting portion B80 includes, for example, a pin B81. The pin B81 is provided to the arrangement space B71. The pin B81 is supported to the socket B70.

[0474] In a state where the holder 100 is held to the socket B70 by the magnetic coupling portion A31B, the inclined surface 130 of the holder 100 contacts the pin B81. The inclined surface 130 is inclined with respect to the holder center axis LH when the holder 100 is viewed from the side.

[0475] The position of the holder 100 with respect to the socket B70 in the direction along the holder center axis LH is determined by the contact of the pin B81 and the inclined surface 130. When the holder assembly A30 is viewed from the side, a force in a direction orthogonal to the joint center axis LJ acts on the holder 100. A portion of the outer peripheral surface of the main body portion 110 is pressed to the inner peripheral surface of the socket B70 by the force.

[0476] (Thirteenth Embodiment)

[0477] The holder 100 of the thirteenth embodiment corresponds to the holder 100 of the second example of the second coupling form in the twelfth embodiment. Figure 22-29 An example of the holder 100 is shown.

[0478] The shape of the holder 100 is generally cylindrical as a whole. In the up-down direction of the holder 100, the holder 100 is divided into, for example, an upper portion 111, a middle portion 112, and a lower portion 113.

[0479] The surface 120 of the holder 100 includes, for example, an outer peripheral surface 121, a top surface 122, an upper surface 123, a lower surface 124, a side surface 125, a bottom surface 126, and an inclined surface 130.

[0480] The outer peripheral surface 121 corresponds to the side surface of a cylinder in the holder 100.

[0481] The top surface 122 corresponds to the end surface of the upper portion 111 of the main body portion 110. The top surface 122 is parallel to the first reference surface.

[0482] The upper surface 123 is formed on the front surface of the upper portion 111 of the main body portion 110. The upper surface 123 is parallel to the second reference surface.

[0483] The lower surface 124 is formed on the front surface of the lower portion 113 of the main body portion 110 and the front surface of each of the support portions 210, 220. The lower surface 124 is parallel to the second reference surface.

[0484] The side surface 125 is formed on the side surface of the lower portion 113 of the main body portion 110 and the side surface of each of the support portions 210, 220. The side surface 125 is parallel to the third reference surface.

[0485] The bottom surface 126 corresponds to the bottom surface of each of the support portions 210, 220. The bottom surface 126 is parallel to the first reference surface.

[0486] The inclined surface 130 is formed on the front surface of the middle portion 112 of the main body portion 110. In the up-down direction of the holder 100, the inclined surface 130 is formed on the lower side with respect to the upper surface 123. The inclined surface 130 is inclined with respect to the second reference surface.

[0487] The inclined surface 130 includes a first end portion 131 and a second end portion 132 in the direction along the holder center axis LH.

[0488] The first end portion 131 is farther from the support portion 200 than the second end portion 132. The inclined surface 130 is inclined in such a manner that the first end portion 131 is closer to the holder center axis LH than the second end portion 132.

[0489] In the front-rear direction of the holder 100, the inclined surface 130 is formed on the front side with respect to the upper surface 123. The first end portion 131 of the inclined surface 130 forms the boundary of the upper surface 123 and the inclined surface 130.

[0490] The holder 100 includes an outer peripheral recess 140. The outer peripheral recess 140 includes, for example, a front surface recess 141 and a side surface recess 142.

[0491] The front recess 141 is formed in the front surface of the lower portion 113 of the main body portion 110 and the front surface of each support portion 210, 220. The front recess 141 is recessed toward the bracket center axis LH with respect to the middle portion 112 of the main body portion 110.

[0492] The lower plane 124 corresponds to the bottom surface of the front recess 141. The lower plane 124 as the bottom surface of the front recess 141 is parallel to the upper plane 123.

[0493] The side recess 142 is formed in the side surface of the lower portion 113 of the main body portion 110 and the side surface of each support portion 210, 220. The side recess 142 is recessed toward the bracket center axis LH with respect to the middle portion 112 of the main body portion 110.

[0494] The side plane 125 corresponds to the bottom surface of the side recess 142. In the up-down direction of the bracket 100, the pin arrangement space 234 is formed below the side recess 142. The configuration of the lower portion of each support portion 210, 220 is exemplified.

[0495] In the first example, an open groove 250 is formed in the lower portion of the pin arrangement space 234 in each support portion 210, 220. The open groove 250 is opened at the bottom plane 126. The open groove 250 is connected to the pin arrangement space 234.

[0496] In the second example, the open groove 250 is not formed in the lower portion of the pin arrangement space 234 in each support portion 210, 220.

[0497] When the bracket 100 is observed from the front surface, the wheel arrangement space 101 is opened at the lower plane 124. When the bracket 100 is observed from the back surface, the wheel arrangement space 101 is opened at the outer circumferential surface 121. When the bracket 100 is observed from the bottom surface, the wheel arrangement space 101 is opened at the bottom plane 126.

[0498] Each support surface 211, 221 of the support portion 200 is parallel. Each support surface 211, 221 of the support portion 200 is inclined with respect to the front-rear direction of the bracket 100. Each support surface 211, 221 is inclined with respect to a third reference surface orthogonal to the upper plane 123 and the lower plane 124. Each support surface 211, 221 is inclined with respect to the side plane 125.

[0499] Figure 28 A first support portion 210 is shown as viewed from a third reference surface including the bracket center axis LH.

[0500] Regarding a first surface structure of the first support surface 211, the first support surface 211 includes a flat surface. Regarding a second surface structure of the first support surface 211, the first support surface 211 includes a recessed structure 300.

[0501] The concave structure 300 is provided to the first support surface 211. The concave structure 300 includes grooves 310 (hereinafter referred to as "first grooves 310") of the contact portion and the non-contact portion facing the first wheel side surface C21, and grooves 310 (hereinafter referred to as "second grooves 310") not facing the first wheel side surface C21.

[0502] Each groove 310 extends in the front-rear direction of the bracket 100. Each groove 310 includes a concave surface 301. The first support surface 211 includes a base surface 211A and the concave surface 301.

[0503] The first support surface 211 includes a boundary portion 320. The boundary portion 320 corresponds to a boundary between the base surface 211A and the concave surface 301. The boundary portion 320 includes, for example, an edge formed between the base surface 211A and the concave surface 301, or a chamfer formed between the base surface 211A and the concave surface 301.

[0504] The boundary portion 320 corresponding to the first grooves 310 includes a first boundary portion 321 and a second boundary portion 322. The first boundary portion 321 is positioned above the space of the groove 310 in the up-down direction of the bracket 100. The second boundary portion 322 is positioned below the space of the groove 310 in the up-down direction of the bracket 100.

[0505] The position of the first boundary portion 321 in the up-down direction of the bracket 100 is above the reference position in the up-down direction. The position of the second boundary portion 322 in the up-down direction of the bracket 100 is below the reference position in the up-down direction.

[0506] The position of the first boundary portion 321 in the up-down direction of the bracket 100 overlaps the position of the pin support portion 230. The position of the second boundary portion 322 in the up-down direction of the bracket 100 overlaps the position of the pin support portion 230.

[0507] The first boundary portion 321 is divided into a portion positioned forward of the pin support portion 230 in the front-rear direction of the bracket 100 and a portion positioned rearward of the pin support portion 230 in the front-rear direction of the bracket 100.

[0508] The second boundary portion 322 is divided into a portion positioned forward of the pin support portion 230 in the front-rear direction of the bracket 100 and a portion positioned rearward of the pin support portion 230 in the front-rear direction of the bracket 100.

[0509] The first boundary portion 321 includes the first contact portion 200A. The position of the first contact portion 200A in the front-rear direction of the bracket 100 is rearward of the reference position in the front-rear direction.

[0510] The second boundary portion 322 includes the second contact portion 200B. The position of the second contact portion 200B in the front-rear direction of the holder 100 is rearward with respect to the reference position in the front-rear direction.

[0511] Each of the grooves 310 includes a front end portion 311 and a rear end portion 312. The front end portion 311 of the groove 310 is open at the front surface 100A of the holder 100. The rear end portion 312 of the groove 310 is open at the rear surface 100B of the holder 100.

[0512] The center line of each of the grooves 310 is parallel to the front-rear direction of the holder 100. Each of the boundary portions 321, 322 is parallel to the front-rear direction of the holder 100.

[0513] Figure 29 The second support portion 220 is shown as viewed from a third reference plane including the holder center axis LH.

[0514] With respect to a first surface structure of the second support surface 221, the second support surface 221 includes a flat surface. With respect to a second surface structure of the second support surface 221, the second support surface 221 includes a concave structure 300.

[0515] The second support surface 221 includes a third contact portion 200C. The third contact portion 200C is a part of the second support surface 221. The position of the third contact portion 200C in the front-rear direction of the holder 100 is forward with respect to the reference position in the front-rear direction.

[0516] The concave structure 300 is provided to the second support surface 221. The concave structure 300 includes the groove 310 that does not face the second wheel side surface C22. The configuration of the groove 310 of the second support surface 221 is the same as that of the second groove 310 of the first support surface 211.

[0517] The inclined support structure SS is configured such that a rotational force around a prescribed rotational axis acts in a direction in which the first support surface 211 is approached toward the rear portion of the first wheel side surface C21 and the second support surface 221 is approached toward the front portion of the second wheel side surface C22.

[0518] When the scribing wheel C10 is pressed against the workpiece, the first wheel side surface C21 contacts the first contact portion 200A and the second contact portion 200B, and the second wheel side surface C22 contacts the third contact portion 200C.

[0519] The position of the first contact point PA and the position of the second contact point PB in the front-rear direction of the holder 100 are rearward with respect to the reference position in the front-rear direction. The position of the third contact point PC in the front-rear direction of the holder 100 is forward with respect to the reference position in the front-rear direction.

[0520] (14th Embodiment)

[0521] The support unit 10 of the fourteenth embodiment is configured on the premise of the support unit 10 of any one of the first through thirteenth embodiments. Figure 30 An example of the second support portion 220 is shown.

[0522] The configuration of the support portion 200 in relation to the support of the scribing wheel C10 is different from that of the support unit 10 of the embodiment on the premise in the support unit 10 of the fourteenth embodiment. The other aspects of the support unit 10 of the fourteenth embodiment are the same as those of the support unit 10 of the embodiment on the premise.

[0523] The prescribed support state of the support portion 200 includes a four-point support state instead of a three-point support state. The support 100 includes a four-point support structure S4 instead of a three-point support structure S3. The four-point support structure S4 is configured to be able to support the scribing wheel C10 in a four-point support state. The first support portion 210 and the second support portion 220 configure the four-point support structure S4.

[0524] In the four-point support state, the first wheel side surface C21 is supported at two points by the first support portion 210, and the second wheel side surface C22 is supported at two points by the second support portion 220.

[0525] In the four-point support state, four contact points are formed by the scribing wheel C10 and the support portion 200. The four contact points include a first contact point PA, a second contact point PB, a third contact point PC, and a fourth contact point PD. The first contact point PA and the second contact point PB are contact points of the first support portion 210 with the first wheel side surface C21. The third contact point PC and the fourth contact point PD are contact points of the second support portion 220 with the second wheel side surface C22.

[0526] In an example, the first contact point PA and the second contact point PB are formed in a portion of the first wheel side surface C21 that includes the boundary portion C40. The third contact point PC and the fourth contact point PD are formed in a portion of the second wheel side surface C22 that includes the boundary portion C40.

[0527] The second support portion 220 also includes a fourth contact portion 200D. The fourth contact portion 200D is provided to the second support surface 221.

[0528] The configuration of the second support portion 220 including the third contact portion 200C and the fourth contact portion 200D is on the premise of the configuration of the first support portion 210 in any one of the first through thirteenth embodiments. The third contact portion 200C of the second support portion 220 corresponds to the first contact portion 200A of the first support portion 210. The fourth contact portion 200D of the second support portion 220 corresponds to the second contact portion 200B of the first support portion 210.

[0529] In one example, each of the support portions 210, 220 is configured to be face-symmetrical with respect to a third reference plane including the support center axis LH.

[0530] (EFFECTS)

[0531] According to the support 100, for example, the following effects can be obtained.

[0532] In one example of the support 100, the support 100 includes a support portion 200 that supports the first wheel side surface C21 and the second wheel side surface C22. The support portion 200 includes a first support portion 210 that supports the first wheel side surface C21 at two points, and a second support portion 220 that supports the second wheel side surface C22 at one point.

[0533] The degree of difference in the posture of the scribe wheel C10 each time the scribe wheel C10 contacts the workpiece becomes smaller.

[0534] In one example of the support 100, the first support portion 210 includes a first contact portion 200A and a second contact portion 200B that contact the first wheel side surface C21. The second support portion 220 includes a third contact portion 200C that contacts the second wheel side surface C22. The position of the first contact portion 200A and the position of the second contact portion 200B in the front-rear direction of the support 100 are different from the position of the third contact portion 200C.

[0535] The stability of the posture of the scribe wheel C10 becomes higher.

[0536] In one example of the support 100, the position of the first contact portion 200A and the position of the second contact portion 200B in the front-rear direction of the support 100 are the same.

[0537] The stability of the posture of the scribe wheel C10 becomes higher.

[0538] In one example of the support 100, the position of the third contact portion 200C in the up-down direction of the support 100 is between the position of the first contact portion 200A and the position of the second contact portion 200B.

[0539] The stability of the posture of the scribe wheel C10 becomes higher.

[0540] In one example of the support 100, the first support portion 210 includes a first support surface 211 facing the first wheel side surface C21 and a recess structure 300 provided to the first support surface 211. The recess structure 300 includes the first contact portion 200A and the second contact portion 200B.

[0541] The first support portion 210 can be easily formed.

[0542] In one example of the bracket 100, the recessed structure 300 includes a groove 310. The groove 310 includes a front end portion 311 that is open at the front surface 100A of the bracket 100 and a rear end portion 312 that is open at the rear surface 100B of the bracket 100.

[0543] The first support portion 210 can be easily formed.

[0544] In one example of the bracket 100, the second support portion 220 includes a second support surface 221 that faces the second wheel side surface C22. The second support surface 221 includes the third contact portion 200C.

[0545] The second support portion 220 can be easily formed.

[0546] In one example of the bracket 100, the first support portion 210 supports a portion of the first wheel side surface C21 that is located further rearward than a reference position in the front-rear direction. The second support portion 220 supports a portion of the second wheel side surface C22 that is located further forward than the reference position in the front-rear direction.

[0547] The degree of difference in the posture of the scribe wheel C10 each time the scribe wheel C10 contacts the workpiece becomes smaller.

[0548] In one example of the bracket 100, the support portion 200 is configured to support the first wheel side surface C21 and the second wheel side surface C22 in a state in which the wheel center surface C11 is inclined with respect to the reference center surface.

[0549] A rotational force is generated on the scribe wheel C10 in such a manner that the first wheel side surface C21 is pressed against the first support portion 210 and the second wheel side surface C22 is pressed against the second support portion 220 by the reaction force generated on the scribe wheel C10 as the workpiece advances. The stability of the posture of the scribe wheel C10 becomes higher.

[0550] Note that the bracket and the bracket unit according to the present application can adopt a mode other than the modes described in the above-described embodiments. The bracket and the bracket unit according to the present application can adopt a mode different from the modes exemplified in the embodiments. As such an example, there can be mentioned a mode in which a part of the configuration of the embodiments is replaced, changed, or omitted, or a mode in which a new configuration is added to the embodiments.

[0551] Explanation of Reference Numerals

[0552] 10: bracket unit

[0553] 100: bracket

[0554] 200: support portion

[0555] 200A: first contact portion

[0556] 200B: second contact portion

[0557] 200C: third contact portion

[0558] 210: first support portion

[0559] 211: first support surface

[0560] 220: second support portion

[0561] 221: second support surface

[0562] 300: concave structure

[0563] 310: groove

[0564] 311: front end portion

[0565] 312: rear end portion

[0566] C10: scribing wheel

[0567] C21: first wheel side surface

[0568] C22: second wheel side surface

[0569] D10: pin

Claims

1. A support, including a support portion that supports a first side surface and a second side surface of a scribing wheel, the support portion includes a first support portion that supports the first side surface at two points and a second support portion that supports the second side surface at one point, the first support portion includes a first contact portion and a second contact portion that come into contact with the first side surface, the second support portion includes a third contact portion that comes into contact with the second side surface, the position of the first contact portion and the position of the second contact portion in the front-rear direction of the support are different from the position of the third contact portion, the support portion is configured to support the first side surface and the second side surface in a state in which a center surface of the scribing wheel is inclined with respect to a reference center surface, the support portion includes a pin support portion that supports a pin that supports the scribing wheel, and the reference center surface is a surface that is orthogonal to a center axis of the pin.

2. The support according to claim 1, wherein the position of the first contact portion and the position of the second contact portion in the front-rear direction of the support are the same.

3. The support according to claim 1, wherein the position of the third contact portion in the up-down direction of the support is between the position of the first contact portion and the position of the second contact portion.

4. The support according to claim 1, wherein the first support portion includes a first support surface that faces the first side surface, and a recessed structure that is provided to the first support surface, the recessed structure includes the first contact portion and the second contact portion.

5. The support according to claim 4, wherein the recessed structure includes a groove, the groove includes a front end portion that is open at a front surface of the support, and a rear end portion that is open at a rear surface of the support.

6. The support according to claim 1, wherein the second support portion includes a second support surface that faces the second side surface, the second support surface includes the third contact portion.

7. The support according to any one of claims 1 to 6, wherein the first support portion supports a portion of the first side surface that is located further rearward than a reference position in the front-rear direction, the second support portion supports a portion of the second side surface that is located further forward than the reference position in the front-rear direction.

8. A support unit, comprising: a scribing wheel; a pin that supports the scribing wheel; and a support that supports the pin, the support includes a support portion that supports a first side surface and a second side surface of a scribing wheel, the support portion includes a first support portion that supports the first side surface at two points and a second support portion that supports the second side surface at one point, the first support portion includes a first contact portion and a second contact portion that come into contact with the first side surface, the second support portion includes a third contact portion that comes into contact with the second side surface, the position of the first contact portion and the position of the second contact portion in the front-rear direction of the support are different from the position of the third contact portion, the support portion is configured to support the first side surface and the second side surface in a state in which a center surface of the scribing wheel is inclined with respect to a reference center surface, The reference center plane is a plane orthogonal to the central axis of the pin. The reference center plane is a plane orthogonal to the central axis of the pin.

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