JPH10220073A - Rotary type stone structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary type stone structure which can be smoothly rotated for a long time even though a degree of machining accuracy for a shaft insertion hole in a stone material, serving as a rotary part, is low, in which many inscriptions are written in a small setting area, and which can enhance the antiseismic ability. SOLUTION: A shaft rod 10 formed of a metal column is projected from the upper part of a base stone 1, is formed with a large diameter shaft part 10a in the lower part of the shaft rod 10, and with a small diameter part 10c in the upper part thereof through the intermediary of a stepped part 10b. A shaft insertion hole 13 is formed at the center of a rotary stone member 2, piercing vertically therethrougth, and is fitted therein with a cylindrical bearing sleeve 14 made of synthetic resin. Further, a large diameter bearing hole 15c is formed in the lower part of the inner surface of the shaft rod 10, and a small diameter bearing hole 15a is formed in the upper part of the inner surface thereof through the intermediary of a stepped part 15b. The shaft rod 10 is extended through the bearing sleeve 14 in the rotary stone member 2, and the stepped part 15b of the bearing sleeve 14 is made into contact with the stepped part 10b of the shaft rod 10 in order to rotatably support the rotary stone member 2, and a shade 3 is secured to the upper end of the shaft rod 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary stone structure in which a tombstone tower, a memorial tower, a stone tower, a monument, and the like made of a stone material are rotated.

[0002]

2. Description of the Related Art Generally, a grave is provided with a stone tower, a grave tower, and a memorial tower, all of which are fixed. In recent years, the number of graveyard sites has decreased, and the area of each graveyard has also decreased. Also, the tomb magazine tower is engraved with the commandments of the buried people and is installed beside the stone tower, but since the tomb magazine tower is formed of a flat plate, many There was a problem that could not be engraved. In some stone towers, the name of the house and crests are engraved on the front of the rectangular parallelepiped, and the date of construction and the name of the sword are engraved on the sides and back. However, because it is a fixed type, it cannot be read unless it turns around to the side or back, especially in a small graveyard, where there are no places to pass in dense places. In addition, since the stone pagoda simply consists of stacking a stone on a stone, there is a risk that the stone will collapse if a large earthquake occurs.

[0003] For this reason, the present inventor has previously described a rotary stone structure such as a rotary stone tower, a tomb tower, and a memorial tower (Japanese Patent Application No. Hei 8-11).
0501) was developed, but there was a problem that the hole for the shaft insertion hole for inserting the stone shaft of the rotating part in particular could not be machined with high accuracy like a mechanical part, and it could not be smoothly rotated due to misalignment.

[0004]

SUMMARY OF THE INVENTION The present invention eliminates the above-mentioned drawbacks, and enables smooth rotation over a long period of time even if the machining accuracy of the shaft insertion hole of the stone as a rotating portion is poor.
It provides a rotary stone structure with excellent seismic resistance, because it can write many inscriptions with a small installation area and can be easily rotated by hand, so that the entire inscription can be read from the front side. It is.

[0005]

According to a first aspect of the present invention, there is provided a rotary stone structure having a shaft formed of a metal cylinder protruding from an upper portion of a base stone, and an outer shaft being formed on a lower side of the shaft. A large-diameter shaft part with a large diameter is formed, and a small-diameter shaft part with an outer diameter smaller than this is formed on the upper side through a step, and a shaft insertion hole penetrating vertically through the center of the rotating stone is opened. Then, a cylindrical bearing sleeve made of synthetic resin is fitted into the shaft insertion hole, and a large-diameter bearing hole into which the large-diameter shaft portion of the shaft rod is inserted is formed on the lower inner surface side of the bearing sleeve. Forming, forming a small-diameter bearing hole in which a small-diameter shaft portion is inserted through a step portion on the inner surface upper side, and penetrating the shaft rod protruding from the top of the base stone through the bearing sleeve of the rotating stone, The step of the bearing sleeve is brought into contact with the step of the shaft to rotatably support the rotating stone. It is characterized in that to fix the timber.

The rotary stone structure according to claim 2 is
It is characterized in that a step provided in an intermediate portion of the shaft bar is formed in a tapered shape, and a step provided in a bearing sleeve in contact with the tapered portion is formed in a tapered shape. Further, in the rotary stone structure according to claim 3, the base stone and the upper stone are formed in a horizontally long shape, and the upper stone is formed with the insertion hole of the tower, and the base stone below the stone corresponds to the insertion hole. A support groove for supporting the lower part of the tower is formed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIG.
This will be described in detail with reference to FIG. FIG. 1 shows a case in which the present invention is applied to a rotary gravestone tower. A columnar rotary stone 2 serving as a gravestone engraving a reputation is provided on a base stone 1 in a freely rotatable manner.
Further, a cap 3 is mounted thereon, and a giboshi 5 is further stacked on the cap 3 via a nine wheel 4. As shown in FIG. 2, the pedestal 1 is formed in an octagonal shape in which the corners are cut out in a tapered shape, and a shaft insertion hole 6 is formed in the center of the pedestal 1 so as to penetrate vertically. The shaft insertion hole 6 has a small inner diameter at the intermediate portion and a large inner diameter at the upper and lower portions. A sleeve 7 made of a synthetic resin such as Teflon is fitted into the large diameter portion 6a above the shaft insertion hole 6.

Reference numeral 10 denotes a shaft rod 3 made of stainless steel. A middle lower portion forms a large-diameter shaft portion 10a having a large outer diameter, and a small-diameter shaft having a smaller outer diameter through a step portion 10b. A portion 10c is formed. The step 10b provided in the middle part
Is formed in a tapered shape, and threaded portions 10d and 10e are provided at both upper and lower ends of the shaft rod 10. The lower end of the shaft rod 10 is inserted into the sleeve 7 of the pedestal 1 and the screw 10
e is passed through the shaft insertion hole 6 and fastened and fixed by the nut 11 at the lower large diameter portion 6 b, and the shaft 10 is erected on the base 1.

The columnar rotating stone 2 serving as a tomb has a shaft insertion hole 13 penetrating in the vertical direction at the center thereof, and a large diameter portion 13b having an enlarged inner diameter through a step portion 13a at the lower side. Are formed. Reference numeral 14 denotes a cylindrical bearing sleeve formed of a synthetic resin such as Teflon, which has a small-diameter cylindrical portion 14a formed on the upper side as shown in an enlarged view in FIG. Is formed with a large-diameter cylindrical portion 14c.

On the upper side of the inner periphery of the bearing sleeve 14, there is formed a small-diameter bearing hole 15a into which the small-diameter shaft portion 10c of the shaft rod 10 is inserted. Below this, a large-diameter bearing portion 15b is formed via a tapered step portion 15b. A large-diameter bearing hole 15c into which the radial shaft portion 10a is inserted is formed.
The angle of the tapered step 15b is gentler than that of the tapered step 10b of the shaft 10. Further, the step portions 10b and 15b that come into contact with each other are formed above the center of gravity of the rotary stone 2.

A cylindrical rotary stone 2 in which the bearing sleeve 14 is inserted into the shaft insertion hole 6 is overlaid on the shaft 10 erected on the base 1, and the shaft 10 is penetrated into the bearing sleeve 14. When you do
The tapered step 15b of the shaft rod 10 comes into contact with the tapered step 15b of the bearing sleeve 14, and the rotating stone 2 is rotatably supported.

A shaft insertion hole 16 is formed in the center of the cap 3 as shown in FIG. The shaft insertion hole 16 is formed such that the inner diameter of the intermediate portion is small and the inner diameter of the upper and lower portions is large. Large diameter part at the bottom of this shaft insertion hole 16
A sleeve 7 made of a synthetic resin such as Teflon is fitted into 16a. The upper end side of the shaft rod 10 is inserted and fitted into the sleeve 7, and the screw portion 10 d at the upper end is projected through the shaft insertion hole 16 to the large diameter portion 16 b, which is tightened with the nut 11 to fix the cap 3. doing. A rotating tomb tower is assembled by superimposing a nine wheel 4 and a giboshi 5 on the cap 3.

In the rotary tomb tower having the above-described structure, a tomb such as a memorial name, a date of death, a year of fun, a popular name, or the like is engraved on the side surface of the columnar rotating stone 2. The tomb tower is of a rotary type, so put your hand on it and turn the rotary stone 2. When the rotary stone 2 is rotated, the rotary sleeve 2 is supported by the shaft 10 protruding from the base stone 1 and the bearing sleeve 14 fitted into it is rotated. I do. In this case, as shown in FIG. 3, the tapered step 15b of the bearing sleeve 14 abuts on the tapered step 10b of the shaft 10, and the step 15b has a smaller angle than the taper of the step 10b. Because it is formed, it becomes line contact,
It can be rotated smoothly with the power of a child.

The bearing sleeve 14 made of synthetic resin such as Teflon has a simple structure and can be rotated for a long period of time without supplying lubricating oil, and has no mechanical shaft support mechanism such as a bearing. Even in this case, it is possible to rotate stably without failure due to intrusion of dust and the like.

In the method of processing the rotary tomb tower, the base stone 1, the rotary stone 2, and the shade 3 are each processed to have an outer diameter and then the shaft insertion holes 6, 13, and 16 are formed in the center. Since it is a stone material, it cannot be opened at the center with high accuracy, and is often misaligned. For this reason, the inner diameter of the shaft insertion holes 6, 13, 16 is formed larger than the outer diameter of the shaft rod 10, and the synthetic resin cylindrical body processed to the same outer diameter as the shaft insertion holes 6, 13, 16 is used. And press fit. Next, the pedestal 1, the rotary stone 2, and the cap 3 are positioned, and a cylindrical sleeve 7, 7 and a bearing sleeve 14 are formed by drilling the inserted synthetic resin cylindrical body with a drill. Even if the processing accuracy is low, it is possible to accurately perform the drilling of the bearing portion at the center through which the shaft rod 10 penetrates.

The step 10 of the shaft 10 for supporting the rotary stone 2
Since b is formed above the center of gravity of the rotary stone 2, it can be rotated stably, and by turning the rotary stone 2 by hand, it is possible to read the remarks of all the members from the front side. In addition, since characters can be engraved on the entire outer periphery of the rotary stone 2, the size can be reduced and the installation area can be reduced as compared with a conventional flat plate.

FIG. 4 shows another embodiment of the present invention, in which a pedestal 1 is formed in a horizontally long rectangular shape, and a rotary stone 2 is rotatably supported on a shaft 10 erected thereon. This is a rotary tomb tower that also has an upper stone 19 having wing-shaped extensions 18, 18 formed horizontally on the right and left sides of the cap 3 on the upper end of a shaft 10 protruding from the rotary stone 2. .

The wing-like extension portions 18 of the upper stone material 19 are provided with insertion holes 21 for inserting a tower 20 respectively. The center of the pedestal 1 protrudes upward, and support grooves 22 for supporting the lower part of the tower 20 are formed in the left and right lower portions corresponding to the insertion holes 21 and 21, respectively. The rotation support mechanism of the rotary stone 2 is the same as that shown in FIG.

The rotary tomb tower having the above structure, which is also used as a tower,
A small cemetery without the necessity of installing separate towers, since the stone 2 engraved with the tomb magazines such as the name of the guardian, the date of death, the year of fun, the popular name can be rotated by hand, and the towers are formed integrally on the left and right. Is more effective in the case of

FIG. 5 shows another embodiment of the present invention, in which a pedestal 1 is formed in a horizontally long rectangular shape, and a rotary stone 2 is rotatably supported on a shaft 10 erected on the left side of the pedestal. A stone pillar 23 is erected in the upper part of the pillar 23 and the shaft 10 in a girder shape.
Has been fixed. Further, two insertion holes 21 and 21 for inserting the tower 20 are opened between the rotating stone 2 and the stone pillar 23 of the upper stone material 19, and correspond to the insertion holes 21 and 21 in the base stone 1 below. Support grooves 22, 22 for supporting the lower part of the toba 20 are formed respectively. The rotation support mechanism of the rotary stone 2 is the same as that shown in FIG. In the rotary tomb tower having the above structure, the rotary stone 2 engraved with the tomb can be rotated by hand, and the installation area can be reduced because the tower is integrally formed.

In the above description, the case where the stepped portion of the shaft rod and the stepped portion of the bearing sleeve that comes into contact with the shaft are formed in a tapered shape is described. A contact structure may be used. In the above description, the case where the rotary stone is cylindrical is described, but it may be polygonal such as square, hexagonal, or octagonal. In addition, without providing the nine rings 4, a spherical cobblestone is connected to the tip of the shaft rod 10,
A structure in which a cap 3 is stacked on this may be used. Further, the present invention is not limited to a rotary tomb tower, but can be widely applied to a memorial tower, a stone tower, a monument, and the like.

[0022]

As described above, according to the rotary stone structure of the present invention, even if the machining accuracy of the shaft insertion hole of the stone to be the rotating part is poor, the synthetic resin bearing sleeve is fitted here. With a simple structure supported by a metal shaft, it can be rotated smoothly over a long period of time, and by rotating the part where the inscription is written, many inscriptions can be made with a small installation area. Because it can be written, and because the inside of the pedestal, the rotating stone, and the upper stone are connected by a metal shaft, it is also excellent in earthquake resistance. In addition, the rotary tomb tower that also has an insertion hole for inserting the tower into the upper stone material can be used as a rotary tower, so that it is not necessary to separately install a tower, so the installation area can be further reduced.

[Brief description of the drawings]

FIG. 1 is a front view of a rotary tomb tower according to an embodiment of the present invention.

FIG. 2 is a front view of the rotary tomb magazine shown in FIG.

FIG. 3 is an enlarged sectional view showing a mechanism of a rotating portion of the rotary tomb magazine shown in FIG. 2;

FIG. 4 is a cutaway front view showing a main part of a rotary tomb tower for dual use according to another embodiment of the present invention.

FIG. 5 is a cutaway front view of a main part of a rotary tomb tower for dual use according to another embodiment of the present invention.

[Description of sign]

 1 Base stone 2 Rotary stone 3 Cap 6 Shaft insertion hole 7 Sleeve 10 Shaft 10a Large diameter shaft 10b Step 10c Small diameter shaft 13 Shaft insertion hole 14 Bearing sleeve 15a Small diameter bearing hole 15b Step 15c Large diameter bearing hole 16 Shaft insertion hole 18 Extension 19 Upper stone material 20 Tower 21 Insertion hole 22 Support groove

Claims (3)

[Claims] 1. A shaft bar formed of a metal cylinder protrudes from an upper portion of a base stone, a large-diameter shaft portion having a large outer diameter is formed on a lower side of the shaft bar, and a step portion is provided on an upper side thereof. To form a small diameter shaft part whose outer diameter is smaller than this, and to open a shaft insertion hole penetrating in the vertical direction at the center of the rotating stone, a cylindrical bearing sleeve formed of synthetic resin in this shaft insertion hole A large-diameter bearing hole into which the large-diameter shaft portion of the shaft rod is inserted is formed in the lower portion of the inner surface of the bearing sleeve, and the small-diameter shaft portion is inserted through the step portion in the upper portion of the inner surface. A small diameter bearing hole is formed, and the shaft rod protruding from the upper part of the base stone is penetrated through the bearing sleeve of the rotary stone, and the step part of the bearing sleeve is brought into contact with the step part of the shaft rod. A rotatable stone structure wherein the upper stone is fixed to the upper end of a shaft protruding from the upper part of the rotary stone. 2. The rotation according to claim 1, wherein a step provided in an intermediate portion of the shaft bar is formed in a tapered shape, and a step provided in a bearing sleeve in contact with the step is formed in a tapered shape. Type stone structure. 3. A pedestal and an upper stone are formed to be horizontally long, and an insertion hole of the tower is formed in the upper stone, and a support groove for supporting the lower part of the tower corresponding to the insertion hole is formed in the lower stone. The rotary stone structure according to claim 1, wherein the stone structure is formed.