JP4028571B2 - Method for manufacturing rotary stone structure and rotary stone structure - Google Patents

Description

  The present invention relates to a method for manufacturing a rotary stone structure such as a rotating grave or a wagon and its rotary stone structure.

  As rotating graves that are rotating stone structures, those described in Patent Documents 1 and 2 are known. Patent Document 1 discloses a rotating tomb magazine in which a bearing member for centering is provided in a cylinder formed in a cylindrical shape, and the cylinder is rotatably provided on the shaft rod through this bearing member. Reference 2 discloses a synthetic resin filler that, when a bearing member is provided in a stone, inserts a shaft hole-forming shaft into the hole of the stone and then mixes and hardens two or more synthetic resin liquids. A bearing forming method is described in which a bearing member is molded by being injected into a hole and cured, and a shaft is extracted from the cured filler.

  As described above, if a shaft (rotary body) is rotatably provided on a shaft rod via a bearing member, a shaft hole can be accurately formed even if it is generally a stone material that has a grain and is difficult to precisely process. . Further, since the synthetic resin can be cured at room temperature, the stone material is not damaged by heat unlike the molten resin.

Japanese Patent Laid-Open No. 10-220073 JP 10-317728 A

  However, since the above-mentioned bearing member uses a special resin that is cured by mixing a plurality of types of synthetic resin liquids, the cost is high and the material cannot be selected freely, the hardness, There was a problem that it was difficult to obtain a bearing member having an optimum property such as a coefficient of friction.

  Therefore, the object of the present invention is to solve the above-mentioned problems, and can perform centering of the bearing member and the rotating body with high accuracy, can use any material for the bearing member, and can be produced at low cost. It is providing the manufacturing method of a stone structure, and its rotary stone structure.

In order to solve the above-mentioned problems, the present invention provides a shaft mounted on a rotating body so that a rotating body formed in a columnar shape with a stone material can be freely rotated in accordance with the axis of the rotating body. In a manufacturing method of a rotary stone structure for forming a hole and inserting a cylindrical bearing member that rotates by fitting with a shaft rod into the rotating body and inserting the hole into the shaft hole of the rotating body A bearing seat for receiving the upper end of the shaft rod is formed at the upper end of the bearing member, and a guide portion having a guide hole through which the shaft rod is inserted is formed at the lower portion, and the rotating body is arranged on the chuck body of the centering machine in the radial direction. The position is adjusted so that the position can be adjusted, and then the rotating body is rotated through the chuck body to adjust the position so that the center axis of the rotating body is aligned with the center axis of the chuck body. in advance to match the rotation axis of the body, the bearing portion The removably rod against, vertically movable is provided in the axial hole of the rotating body after positioning on the chuck body, the bearing member, in that the guide hole is inserted into the rod, seat rod lower end those The bearing member is bonded to the shaft hole in a state where the rod is fitted to the rod so as to come into contact with the shaft.

In addition, a rotating body formed in a columnar shape with a stone material on a shaft standing on a pedestal is provided with a shaft hole in the rotating body so as to be freely rotatable in accordance with the axis of the rotating body, and the rotation In a rotary stone structure in which a cylindrical bearing member that rotates by fitting with a shaft rod is inserted into a shaft hole of the rotating body and fixed to the body, the upper end of the shaft rod is connected to the upper end of the bearing member. A receiving seat is formed and a guide portion having a guide hole through which the shaft bar is inserted is formed at the lower portion, and the rotating body is gripped by the chuck body of the centering machine so that the position in the radial direction can be adjusted. by rotating the rotating body through the chuck body positioned adjusted to align the center axis of the rotating body to the rotational axis of the chuck body, while previously to match the rotation axis of the chuck body in the centering device, the the removably rod relative to the bearing member, vertically movably Only the axial hole of the rotating body after positioning on the chuck body, a bearing member, the guide hole is inserted into the rod, seat is in a state of being combined axis fitted to the rod to abut against the rod lower end The bearing member is bonded to the shaft hole.

  ADVANTAGE OF THE INVENTION According to this invention, centering with a bearing member and a rotary body can be performed with a high precision, arbitrary materials can be used for a bearing member, and a rotary stone structure can be produced at low cost.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, a rotary tombstone 2 as a rotary stone structure 1 includes a pedestal 3 made of stone, a shaft rod 4 standing on the pedestal 3, and a columnar member that is formed in a column shape. 5 is composed of a barrel stone 7 which is a rotating body 6 provided rotatably via 5, and a capstone 8 provided on the barrel stone 7.

  As shown in FIGS. 1A and 5, the pedestal 3 has an insertion hole 9 through which the shaft bar 4 is inserted vertically, and is formed by expanding the lower end portion of the insertion hole 9. There is a fastener accommodating portion 11 for accommodating a nut 10 as a fastener.

  The shaft bar 4 has a plate-like washer 12 in the middle in the axial direction and is formed with a male screw 13 at the lower end. When the shaft bar 4 is inserted into the insertion hole 9 of the base 3, the washer 12 is seated on the base 3. The male screw 13 protrudes into the fastener accommodating portion 11. The shaft 4 is fastened to the pedestal 3 with the pedestal 3 sandwiched between the washer 12 and the nut 10 by screwing the nut 10 into the male screw 13. Further, a sphere 14 for rotatably supporting a bearing member 5 described later is provided on the upper end of the shaft rod 4.

  As shown in FIGS. 1 (a) and 1 (b), the bearing member 5 has a cylindrical portion 15 that is sufficiently larger in diameter than the shaft rod 4 and surrounds the outer periphery of the shaft rod 4, and an upper end portion of the cylindrical portion 15. A receiving seat 16 that is provided and receives the sphere 14 at the upper end of the shaft rod 4, a guide portion 17 that is provided at the lower portion of the cylindrical portion 15 and is in sliding contact with the outer periphery of the shaft rod 4, and a lower end of the cylindrical portion 15. It consists of a flange 18 and an end cap 19 provided on the upper end of the cylindrical portion 15. The cylindrical part 15 consists of a resin pipe. The receiving seat 16 is made of a block-like resin (dellin) that is hard and has a small friction coefficient. In the center of the lower surface of the receiving seat 16, a concave portion 20 that is recessed in a spherical shape so as to receive the sphere 14 is formed. The recess 20 is formed to have a sufficiently larger diameter than the sphere 14 so as to receive the sphere 14 with a point. A plurality of holes 21 penetrating in the axial direction are formed in the flange portion 18 so that an adhesive 23 (see FIG. 4) can be easily injected into a hole 22 of the bobstone 7 described later. The guide portion 17 is formed in a disk shape with the same material as the receiving seat 16 and has a guide hole 24 for guiding the shaft rod 4 therethrough. The guide hole 24 is formed coaxially with the cylindrical portion 15, and guides the shaft 4 on the axis of the cylindrical portion 15.

  As shown in FIG. 5, the trunk stone 7 has a hole 22 extending on the axis from the lower end to the upper portion. The hole 22 is formed by cutting the body stone 7 and has a large diameter so that the bearing member 5 can be moved in the radial direction on the shaft. In addition, an enlarged diameter portion 25 is formed at the lower end portion of the hole 22 so as to expand the diameter so as to accommodate the flange portion 18 of the bearing member 5.

  As shown in FIG. 2A, the centering machine 26 used for producing the rotary tombstone 2 includes a main body frame 27, a rotatable chuck 28 provided on the main body frame 27 and gripping the stone 7, and the main body frame 27. And a rod 29 provided so as to be axially movable and arranged on the same axis as the chuck 28. The main body frame 27 includes a base portion 30 placed on the floor, a column portion 31 erected on the base portion 30, and an arm portion 32 that extends in the horizontal direction above the column portion 31. The rod 29 is provided at the tip of the arm portion 32 so as to be movable in the vertical direction and extending in the vertical direction, and is formed to have substantially the same diameter as the guide hole 24 of the bearing member 5. As shown in FIG. 2 (b), a spherical surface 33 having a smaller diameter or the same diameter as the concave portion 20 of the receiving seat 16 is formed at the lower end of the rod 29, and the receiving seat when the rod 29 is fitted into the bearing member 5. The spherical surface 33 at the lower end of the rod 29 is brought into contact with the 16 concave portions 20. As shown in FIG. 2A, the chuck 28 includes a support leg 34 that is positioned vertically below the rod 29 and is provided on the base 30, a chuck body 35 that is rotatably provided on the support leg 34, and a chuck. The main body 35 is configured to include four claws 36 provided so that the radial position can be adjusted. The claws 36 are arranged at equal intervals in the circumferential direction, respectively, so that the rock stone 7 can be gripped stably.

  When the bearing member 5 is attached to the barrel 7 using the centering machine 26, as shown in FIGS. 2 (a) and 2 (b), the barrel 7 is directed to the chuck 28 with the hole 22 facing upward and a gauge or the like not shown. The shaft is gripped so as to coincide with the chuck 28, the rod 29 is fitted into the bearing member 5, and the bearing member 5 is attached to the lower end of the rod 29. At this time, the rod 29 is received in the recess 20 of the seat 16 by receiving the spherical surface 33 at the lower end, and is fitted into the guide hole 24 of the guide portion 17 so as to be coaxial with the bearing member 5.

  Thereafter, as shown in FIGS. 3A and 3B, the rod 29 is lowered to insert the bearing member 5 into the hole 22 of the stone 7, and the chuck 28 is rotated together with the stone 7 to obtain the stone 7 is centered. Specifically, the behavior of the rock stone 7 is visually confirmed while the chuck 28 is rotated. When the shafts of the rock stone 7 and the bearing member 5 are slightly displaced, the rock stone 7 swings around the bearing member 5, so that the rotation of the chuck 28 is temporarily stopped to eliminate the rocking of the rock stone 7. Finely adjust the gripping position. As described above, the chuck 28 is rotated to visually check the displacement of the stone 7 and the work of finely adjusting the gripping position of the stone 7 is repeated to stop the rock 7 from swinging. Stop and pour the adhesive 23 into the hole 22 in the stone 7 as shown in FIG.

  The adhesive 23 only needs to be able to firmly fix the body stone 7 and the bearing member 5, and specifically, cement is used. In addition, the adhesive 23 is injected into the inner portion of the hole 22 and the inlet portion, and the bearing member 5 is fixed at a plurality of positions spaced apart in the axial direction, and the axial direction of the flange portion 18 and the enlarged diameter portion 25 is fixed. The position of the bearing member 5 in the axial direction is fixed between the surface facing the surface. Thereby, the bearing member 5 can be coaxially fixed to the body stone 7.

  As shown in FIG. 5, when assembling the rotary grave magazine 2, after inserting the shaft rod 4 into the insertion hole 9 of the base 3, the nut 10 is screwed into the male screw 13 at the tip of the shaft rod 4, and the nut 10 is tightened. Then, the shaft 4 is erected on the base 3. Further, a decorative part such as a capstone 8 is attached to the stone 7 to which the bearing member 5 is attached in the manner described above. Thereafter, the barrel stone 7 is lifted by a hoist (not shown) or the like, moved vertically above the shaft rod 4, and the barrel stone 7 is lowered to insert the shaft rod 4 into the bearing member 5. Thereby, the spherical body 14 at the upper end of the shaft rod 4 enters the recess 20 of the receiving seat 16 of the bearing member 5 and the receiving seat 16 rests on the spherical body 14. At this time, since the concave portion 20 is formed in a spherical shape, the concave portion 20 is automatically centered by moving so that the spherical body 14 is positioned at the center, and the assembly work of the rotating tomb magazine 2 is completed.

  In this way, the centering machine 26 having the rotatable chuck 28 for gripping the stone 7 and the rod 29 arranged coaxially with the chuck 28 and movable in the axial direction is used. On the other hand, after inserting the rod 29 into the bearing member 5, the rod 29 is moved into the hole 22 of the barrel 7, the chuck 28 is rotated to center the barrel 7, and the hole of the barrel 7 is In order to manufacture the rotating tomb 2 by injecting the adhesive 23 into the inner wall 22 and fixing the bearing member 5 coaxially to the body stone 7, the bearing member 5 and the body stone 7 should be centered with high accuracy. In addition, the optimum material for the bearing member 5 can be arbitrarily selected and used, and a rotating tomb magazine can be produced at low cost.

  In addition, since any material can be used for the bearing member 5, a high load is applied to the receiving seat 16 that supports the barrel stone 7 by placing it on the upper end of the shaft rod 4 via the receiving seat 16 and supporting it. A hanging support structure can also be adopted. Then, the upper end of the shaft bar 4 is received by a receiving seat 16 made of a hard and small friction coefficient Delrin, and the core of the receiving seat 16 and the shaft rod 4 is accurately aligned, so that the body stone 7 is lightly applied. Can be rotated smoothly.

In addition, although the chuck | zipper 28 shall have the four nail | claws 36, it is not restricted to this. The number of the claws 36 may be three, or may be five or more.
Further, when the bearing member 5 is attached to the rock stone 7 using the centering machine 26, the rod 29 is fitted into the bearing member 5 and the bearing member 5 is attached to the lower end of the rod 29, and then the rod 29 is lowered. The bearing member 5 is inserted into the hole 22 of the body stone 7, but the present invention is not limited to this. After the bearing member 5 is inserted into the hole 22 of the body stone 7, the rod 29 may be lowered and fitted into the bearing member 5.

  The receiving seat 16 and the guide portion 17 are made of delrin. However, the invention is not limited to this, and the receiving seat 16 and the guide portion 17 may be made of other materials as long as they are hard and have a small friction coefficient.

  Moreover, although the case where the rotary stone structure 1 was the rotary grave magazine 2 was demonstrated, it does not restrict to this. The rotary stone structure may be a rotary service tower, a sand wheel, or the like.

  Another embodiment will be described.

  FIG. 6 shows a modification of the shaft 4 and the receiving seat 16 of the above-described embodiment, and other configurations are the same as those described above. The description of the same configuration as that described above is omitted, and the same reference numerals are given.

  As shown in FIG. 6, the shaft 40 has a receiving hole 42 for receiving a sphere 41 at the upper end, and a high-viscosity lubricant 43 such as silicon grease is filled in the receiving hole 42 and the sphere 41 is inserted. By doing so, the spherical body 41 is rotatably supported. Thereby, friction between the receiving seat 44 and the sphere 41 can be reduced, the rotation of the body stone 7 can be made smoother, and wear of the receiving seat 44 and the sphere 41 can be suppressed. Since the spherical body 41 receives surface tension from the lubricant 43, it does not easily come out of the accommodation hole 42, and the receiving seat 44 can be stably supported.

  In addition, a first recess 45 that is recessed in a spherical shape so as to receive the sphere 41 is formed at the center of the lower surface of the receiving seat 44, and a second recess 46 that is formed by further recessing the center of the first recess 45 is formed. ing. Thereby, the spherical body 41 can be received by the annular ridgeline 47 formed at the boundary between the first concave portion 45 and the second concave portion 46, and the center of the first concave portion 45 is accurately positioned on the vertical axis passing through the center of the spherical body 41. The load on the receiving seat 44 can be reduced. In addition, in general, it takes skill to accurately form a spherical concave surface, and it takes time and effort, but by forming the second concave portion 46, manufacturing errors and the like of the inner surface of the first concave portion 45 can be absorbed, and axial deviation can be suppressed. Can be processed easily.

  The second recess 46 can be easily formed by using a drill (not shown) having a smaller diameter than the first recess 45. In addition, the second recess 46 can finely adjust the height of the body stone 7 by adjusting the size of the outer diameter, and can change the contact area with the sphere 41, and the rotational weight of the body stone 7. Can be adjusted. Specifically, when the weight of the stone 7 is heavy, the contact area with the sphere 41 can be reduced by forming the outer diameter of the second recess 46 small, the rotation of the stone 7 can be lightened, and the stone 7 When the weight of the second recess 46 is light, the diameter of the outer periphery of the second recess 46 can be increased to increase the contact area with the sphere 41, and the rotation of the body stone 7 can be prevented from becoming too light.

  Further, the lubricant 43 may be filled in the second recess 46. Friction between the sphere 41 and the receiving seat 44 can be reduced, and wear of the receiving seat 44 and the sphere 41 can be further suppressed.

(A) is front sectional drawing of the rotation tomb magazine which shows suitable embodiment of this invention, (b) is the principal part enlarged view of (a). (A) is a front view of the centering machine, (b) is an enlarged cross-sectional view of the main part of (a). (A) is a front view of the centering machine which is centering a drum and a bearing member, (b) is a principal part expanded sectional view of (a). It is front sectional drawing of a rock stone fixed with the adhesive agent and a bearing member. FIG. 2 is a development view of FIG. It is a principal part expanded sectional view of the rotation tomb magazine which shows other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotary stone structure 3 Base 4 Shaft bar 5 Bearing member 6 Rotor 22 Hole 23 Adhesive 26 Centering machine 28 Chuck 29 Rod

Claims (2)

In order to provide a rotating body formed in a columnar shape with a stone material on a shaft standing on a pedestal so as to be rotatable in accordance with the axis of the rotating body, a shaft hole is formed in the rotating body, and the rotating body In the method for manufacturing a rotary stone structure for inserting and fixing a cylindrical bearing member that rotates by being fitted to the shaft rod into the shaft hole of the rotating body, the upper end of the shaft rod is attached to the upper end of the bearing member. And a guide part having a guide hole through which the shaft bar is inserted at the lower part, and the rotating body is gripped by the chuck body of the centering machine so that the position in the radial direction can be adjusted. Rotate the rotating body through the chuck body and adjust the position so that the center axis of the rotating body is aligned with the axis of rotation of the chuck body, while the centering machine is pre-matched with the axis of rotation of the chuck body , the removably rod relative to the bearing member, the lifting Provided standing, the shaft hole of the rotary body after positioning on the chuck body, the bearing member, the guide hole is inserted into the rod, seat is fitted to the rod to abut against the rod lower end alignment A method for manufacturing a rotary stone structure, characterized in that a bearing member is bonded to a shaft hole in a state of being made. In order to provide a rotating body formed in a columnar shape with a stone material on a shaft standing on a pedestal so as to be rotatable in accordance with the axis of the rotating body, a shaft hole is formed in the rotating body, and the rotating body In a rotary stone structure in which a cylindrical bearing member that rotates by fitting with a shaft rod is inserted into a shaft hole of a rotating body and fixed , the upper end of the shaft rod is received by the upper end of the bearing member. A guide portion having a guide hole through which a shaft rod is inserted is formed at a lower portion, and the rotating body is gripped by the chuck body of the centering machine so that the radial position can be adjusted, and then the chuck body. the rotates the rotating member via positioned adjusted to align the center axis of the rotating body to the rotational axis of the chuck body, while previously to match the rotation axis of the chuck body in the centering device, the bearing member the removably rod against, vertically movably provided, Jack in the axial hole of the rotating body after positioning on the body, a bearing member, the guide hole is inserted into the rod, seat is in the state of being combined axis fitted to the rod to abut against the rod lower end shaft A rotary stone structure characterized by adhering a bearing member to a hole.

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