JP3115791U - Damping tombstone - Google Patents

Abstract

【Task】
Provided is a damping tombstone capable of preventing a tombstone block from collapsing due to vibration such as an earthquake by inserting a shock absorber having a damper function at the boundary between stacked tombstone blocks.
[Solution]
A tombstone in which a plurality of tombstone blocks are stacked in a vertical direction, and a buffer made of a flexible material is inserted into the boundary between the tombstone blocks, and an insertion hole is formed in each of the upper and lower surfaces at the boundary of the tombstone block. Are formed so as to face each other, and a soft adhesive is formed in the insertion holes on the upper and lower surfaces to form an adhesive layer, and the buffer body is inserted across the upper and lower adhesive layers.
[Selection] Figure 5

Description

This invention relates to a vibration tombstone that protects stacked tombstones from collapse due to earthquakes and the like. Specifically, a buffer made of a flexible material between the upper and lower tombstones in order to maintain the state of the tombstones that have been stacked without causing the piled tombstones to break up or down due to earthquakes or other vibrations. It relates to the vibration control tombstone with the body attached.

In the structural design of buildings against seismic force, in addition to the conventional seismic construction method, the concept of vibration control method has been introduced to control or control seismic force so that the energy is not transmitted to the building. . The vibration control method is a method for preventing vibration energy from an earthquake or the like from being directly transmitted to a building, and an isolator is inserted between the foundation of the building and the superstructure. This isolator uses a vibration damping structure, which consists of a soft layer made of a highly-damping rubber composition and a hard layer made of metal, etc., which are alternately stacked in the vertical direction to support the structure. On the other hand, in order to soften the input acceleration of vibration, it has a soft performance in the lateral direction.

In addition, the damping method requires a damper function in addition to an isolator function. When a building is subjected to seismic force, it vibrates violently if it is an earthquake-resistant structure, but in the vibration-damping structure, the building and the ground are insulated by the isolator described above, so there is little effect on the building just by moving slowly. However, when an isolator is used, it may be difficult to stop even after an earthquake, or the displacement between the building and the ground may increase, and the allowable deformation of the isolator may be exceeded. Therefore, a damping force is required to suppress this deformation, and the damper plays this role. In general, the damping structure is composed of a combination of functions of an isolator and a damper.

A rubber isolator is a material that achieves the required characteristics of an isolator. It is very soft and can be greatly deformed against horizontal forces such as earthquakes. On the other hand, the damper suppresses the relative displacement between the superstructure and the ground that occurs during an earthquake, and one that uses the shear resistance of the high-viscosity material of the viscous damper is effective.

By the way, the tombstone is a stack of extremely heavy stones, so it will not collapse due to wind and rain, but it may collapse in a large earthquake. In particular, a tombstone with a high stack of tombstone blocks tends to collapse. Furthermore, if the period of the earthquake resonates with the period of the tombstone shaking, it will be easy to collapse even in a small earthquake.

Also, in the current construction of gravestones, a plurality of gravestone blocks are transported to the graveyard and stacked and constructed in the graveyard, which requires time and labor for the construction of the graveyard. This is because it is necessary to construct a plurality of tombstone blocks transported to the graveyard by accurately stacking them at a predetermined position. When stacking gravestones in the graveyard, mortar is filled between the gravestone blocks and the gravestone blocks are bonded with cement.

In addition, there are methods for connecting the tombstone blocks, such as a method of tightening and connecting a plurality of tombstone blocks by penetrating the upper and lower tombstone blocks, and a method for preventing the upper tombstone block from moving horizontally by aligning the dowels. . Tombstones are generally elongated and stacked upwards, but they have the effect of preventing collapse by strong winds such as typhoons by penetrating the heartwood. On the other hand, the tombstone structure is rigidly connected, and if such a rigid body is subjected to an impact such as an earthquake, the core material may be broken. In the case of dowel matching, the fitting portion is damaged. In other words, the core material and the dowel matching method are seismic design, but the damping strength is poor.

On the other hand, from the viewpoint of the damping structure, a rubber composition that is a highly attenuating material is generally used for construction of heavy objects such as tombstones. First, a highly attenuating material in which silica is blended with a rubber component to be inserted between gravestone blocks has been proposed (see, for example, Patent Document 1). A so-called rubber composition is provided with a function as an isolator.

JP-A-6-57036

As described above, the conventional tombstone structure has the following problems.

That is, the first problem of the conventional tombstone structure is that the tombstone block is firmly connected with cement, so that the tombstone can be effectively prevented from falling down. However, since cement is vulnerable to impacts, the connection part is separated by vibration such as an earthquake. That is, there is a drawback that the edges of the upper and lower tombstone blocks are cut.

In order to eliminate such harmful effects of cement, for example, an epoxy adhesive having excellent adhesion strength to stones may be used. However, since the tombstone block bonded with these adhesives has low impact strength, the bonded portion is easily peeled off due to an earthquake or the like.

Therefore, the damping tombstone of the present invention was made to solve such a conventional problem, and a shock absorber having a damper function was inserted at the boundary of the stacked tombstone blocks, such as an earthquake. The purpose is to provide a vibration control tombstone that can prevent the tombstone block from collapsing due to vibration.

Therefore, the present inventor noticed that the willow tree is strong against vibration caused by the wind, and based on this, the idea of inserting a flexible material with soft adhesive soaked between the tombstone blocks stacked in layers Developed into. And when the gravestone was made into what is called a flexible connection structure instead of a rigid connection, the knowledge that the edge of an upper and lower gravestone block was hard to cut was acquired. The vibration control tombstone structure of the present invention is embodied on the basis of such knowledge, and the device of claim 1 is constructed by stacking a plurality of tombstone blocks in the vertical direction and using a flexible material at the boundary of these tombstone blocks. The tombstone is formed by inserting a buffer body, and an insertion hole is formed opposite to each of the upper and lower surfaces at the boundary of the tombstone block, and a soft adhesive is filled in each of the upper and lower surface insertion holes. The adhesive layer is formed, and the buffer body is inserted between the upper and lower adhesive layers.

In addition to the above feature of the invention of claim 1, the invention of claim 2 is formed by forming the buffer body in a cylindrical shape from a mesh-like woven fabric.

Further, in addition to the above feature of the invention of claim 1, the invention of claim 3 is formed by forming the buffer body in a strip shape from a mesh-like woven fabric.

According to a fourth aspect of the present invention, in addition to the above feature of the first aspect of the invention, the buffer body includes a bias weave.

Here, the “gravestone block” as used in the present specification is a block stone of various shapes and sizes that are stacked, depending on the number of stacks, but from the top of the tombstone, the meteorite, the middle stone, It is composed of stones, foundation stones, etc., and these are collectively called tombstone blocks.

The monolithic damping tombstone according to the present invention has an effect of preventing the upper and lower tombstone blocks from being separated by an impact and preventing the tombstone block from collapsing due to vibration such as an earthquake. This is because the shock absorber of the present invention has a damper function of the damping method. The damping tombstone with integrated structure of the present invention has a buffer made of a flexible material inserted at the boundary of the tombstone block, and an adhesive layer filled with a soft adhesive is formed around the buffer. . For this reason, since the upper and lower tombstone blocks are provided with a buffer, and this buffer has flexibility, the tombstone block can be prevented from collapsing due to vibration such as an earthquake.

Embodiments of the present invention will be specifically described below based on examples of the present invention shown in the accompanying drawings.

First, a first aspect of an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view of an integrated structure damping tombstone according to an embodiment of the present invention. FIG. 2 is a plan view taken along the line AA shown in FIG. FIG. 3 is a schematic diagram showing a mesh-like woven fabric as a material of the buffer body. FIG. 4 shows a cylindrical cushion formed from a mesh-like woven fabric. FIG. 5 is a schematic diagram showing a state in which the tombstone block is displaced due to the seismic force.

As shown in FIG. 1, the damping tombstone has a tombstone block meteorite 1 laminated on a headstone 2 of the tombstone block. A plurality of holes for inserting buffer bodies are formed on both sides of the boundary between these stones 2 and meteorites 1. That is, a plurality of upper insertion holes 31 are drilled at an appropriate depth upward on the meteorite 1 side. On the other hand, a plurality of lower insertion holes 41 are drilled at appropriate depths downward at positions corresponding to the upper insertion holes 31 on the side of the talc 2. Then, the cylindrical buffer 51 is inserted into a plurality of hole locations where the upper insertion hole 31 and the lower insertion hole 41 are connected in the vertical direction, penetrating the boundary surface.

The arrangement state of these buffer bodies is shown in FIG. 2 as an AA arrow view of FIG. The lower insertion holes 41 are arranged in five points symmetrically, and a plurality of holes can be drilled in any way according to specifications such as the size of the tombstone. A cylindrical shock absorber 51 is inserted into each lower insertion hole 41. A gap is formed between the lower insertion hole 41 and the cylindrical buffer 51, and a soft adhesive is filled therein to form the adhesive layer 6. For this reason, first, the upper meteorite 1 and the cylindrical buffer 51 are connected while maintaining flexibility. Similarly, an adhesive layer 6 is formed between the upper insertion hole 31 and the cylindrical buffer body 51 on the side of the meteorite 1 above the headstone 2, so that the lower headstone 2 and the cylindrical buffer body 51 Are connected while maintaining flexibility. In this way, the meteorite 1 and the talc 2 stacked through the cylindrical buffer 51 and the adhesive layer 6 are connected to each other while maintaining flexibility. That is, the meteorite is elastically connected to the talc via the buffer.

Here, the cylindrical buffer 51 is made of a mesh-shaped woven fabric as shown in FIG. The mesh-like woven fabric has flexibility to expand and contract in all directions. As the material, a wire material such as natural or synthetic fiber or metal wire is used. Special materials include fiber reinforced plastic using carbon fiber as a reinforcing material, reinforced fiber bundled with carbon fiber and high strength Kepler fiber, and glass fiber reinforced resin. This is wound in a cylindrical shape as shown in FIG. 4, and FIG. 4 (a) shows the fiber direction of the woven fabric of FIG. 3 aligned with the axial direction of the cylindrical body. FIG. 2B shows a woven fabric wound with the fiber direction oblique to the axial direction of the cylindrical body, that is, provided with a bias weave. These buffer bodies have flexibility and generate elastic elongation in any direction. Note that when the mesh-shaped woven fabric is wound into a cylindrical shape, it may be wound once or may be wound several times depending on the use of a tombstone. Both shock absorbers are inserted with their axial lengths aligned with the vertical direction of the tombstone.

In addition, a soft adhesive is essential, and rubber-based synthetic rubber such as natural rubber or chloroprene-based, nitrile rubber-based, styrene-butadiene rubber-based rubber is used. The same applies to other embodiments.

It is comprised as mentioned above, Next, an effect | action is demonstrated.

FIG. 5 schematically shows an exaggerated state in which the meteorite is laterally shifted while being lifted from the trapezoid due to the seismic force. Usually, the meteorite 1 and the talc 2 are connected via the buffer 5 that maintains the vertical direction. Specifically, on the side of the stone 2, one end of the buffer body 5 is fixed to the adhesive layer 6 filled with the soft adhesive and formed in the lower insertion hole 4 while keeping the buffer body 5 in the vertical direction. On the side of the meteorite 1, the other end of the buffer body 5 is fixed to an adhesive layer 6 filled with a soft adhesive and formed in the upper insertion hole 3. That is, the buffer body 5 is inserted over the upper and lower adhesive layers 6 and 6 and fixed by the adhesive. In this way, the meteorite 1 is elastically coupled to the stone 2 via the buffer body 5.

When an earthquake occurs, the meteorite 1 moves sideways while being lifted from the stone 2 by the seismic force B in the diagonally upward direction. The meteorite 1 ′ indicated by the two-dot chain line is the original position, and the solid meteorite 1 is the position after the displacement due to the seismic force. Similarly, the upper insertion hole 3 'indicates the original position, and the upper insertion hole 3 indicates the position after the occurrence of displacement.

When a seismic force B obliquely upward is applied to the meteorite 1, the meteorite 1 moves from the position of the original two-dot chain line to the position of the solid line while rising from the talus 2. At this time, the shock absorber 5 having one end fixed to the lower insertion hole 4 is stretched in an obliquely upward direction while being pulled by the other end fixed to the upper insertion hole 3.

Here, the buffer body 5 is an elastic material having flexibility. In addition, the adhesive for fixing the buffer body 5 is also a flexible soft material. When the vibration force B due to the earthquake occurs, the one end of the buffer body 5 remains fixed to the lower insertion hole 4 and the elastic properties of both the above-mentioned materials combine to make the other end of the buffer body 5 While being pulled by the stone 1, it grows along with it. At this time, the buffer body 5 acts as a so-called damper that suppresses relative displacement between the upper meteorite 1 and the lower bed stone 2. That is, the buffer body 5 has an effect of suppressing vibration as a damper using the shear resistance of the buffer body 5.

FIG. 4 shows a cylindrical buffer body, and FIG. 4A shows a cylindrical buffer body 51 in which the direction of fibers of the woven fabric coincides with the axial direction of the cylindrical body. FIG. 2B shows a cylindrical buffer 51 in which the fiber direction of the woven fabric is wound in a direction oblique to the axial direction of the cylindrical body, and has a bias weave. In the case of the figure (b), since the fiber has a large expansion and contraction in the bias direction, even if the seismic force B is applied obliquely upward, the shear resistance of the buffer is increased, and the effect of suppressing the displacement of the upper meteorite 1 is obtained. That is, since the meteorite 1 is not separated from the trapezoid 2 by the seismic force, the upper and lower connection structure is maintained while maintaining the elasticity by the buffer body, thereby preventing the tombstone from collapsing. In addition, by engraving the inner peripheral surfaces of the upper insertion hole and the lower insertion hole, the bonding between the tombstone block and the soft adhesive is promoted, and as a result, the buffer body does not peel from the tombstone block.

In addition to the above embodiment, there is another means for inserting a buffer between the tombstone blocks. This will be described below.

Another embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a plan view corresponding to the arrow AA in FIG. FIG. 7 shows a strip-shaped cushion formed from a mesh-like woven fabric.

The main difference from the first embodiment described above is that the buffer body has a different shape and a rectangular buffer body having a rectangular cross section is disposed. In the following, the differences from the first embodiment will be mainly described.

The arrangement state of the buffer is shown in FIG. Four lower insertion holes 42 are arranged point-symmetrically, and a total of five insertion holes including a lower insertion hole 43 are arranged at the center. As the shock absorber, a rectangular shock absorber 52 shown in FIG. 7 is inserted at four outer locations, and a cylindrical shock absorber 51 is inserted in the middle. Both shock absorbers are inserted with the longitudinal axis direction aligned with the vertical direction of the tombstone. The lower insertion hole 42 is a square hole or an oval hole in accordance with the rectangular cross section of the rectangular buffer body 52. The same applies to the shape of the upper insertion hole facing the boundary of the tombstone block. As in the first embodiment, an adhesive layer 6 is formed between the lower insertion holes 42 and 43 and the buffer bodies therein, and a soft adhesive is poured therein to fix the buffer bodies to the stone 2. . Similarly, an adhesive layer 6 is formed between the upper insertion hole and the buffer body on the upper meteorite 1 side, and the buffer body is fixed to the meteorite 1. In this way, the meteorite is elastically connected to the trapezoid via the buffer.

The shape of the buffer is a strip-shaped buffer 52 formed in a thin plate shape as shown in FIG. The fiber direction of the woven fabric may coincide with the longitudinal axis direction of the strip, and the fiber direction of the woven fabric may be inclined with respect to the longitudinal axis direction of the strip shape, that is, may have a bias texture. These buffer bodies have flexibility and generate elastic elongation in any direction. The material of the mesh-like woven fabric is the same as that of the cylindrical shape.

In all the above embodiments, the insertion structure of the buffer body related to the double-layered tombstone has been described, but the insertion structure of the buffer body at the boundary between the tombstone blocks is the same even in multistage stacking such as three or four stages. . Further, the buffer body may be point-symmetrical or linear, and an appropriate layout and number may be selected in accordance with specifications such as the size of the tombstone.

Of course, the use of the damping tombstone of the present invention may be applied to prevent the fall of heavy stone monuments such as tombstones, Buddha statues, furniture, and refrigerators.

It is a front view of the vibration control tombstone of the integrated structure which concerns on the Example of this invention. It is an AA arrow top view shown in FIG. 1 same as the above. It is a schematic diagram which shows the mesh-shaped woven fabric used as the material of a buffer body same as the above. The cylindrical buffer body formed from a mesh-like woven fabric is shown as above. It is a schematic diagram which shows the state which a tombstone block produces a shift | offset | difference by an earthquake force same as the above. It is a top view equivalent to the AA arrow of FIG. 1 concerning another embodiment same as the above. The same as above, shows a rectangular buffer formed from a mesh-like woven fabric.

Explanation of symbols

A Direction of arrow B Seismic force 1 Meteorite 1 ′ Meteorite 2 Trapezoid 3 Upper insertion hole 3 ′ Upper insertion hole 31 Upper insertion hole 4 Lower insertion hole 41 Lower insertion hole 42 Lower insertion hole 43 Lower insertion hole 5 Buffer 51 Cylindrical buffer body 52 Strip buffer body 6 Adhesive layer

Claims (4)

A tombstone formed by stacking a plurality of tombstone blocks in the vertical direction and inserting a buffer made of a flexible material at the boundary between these tombstone blocks,
With the insertion holes facing each of the upper and lower surfaces at the boundary of the tombstone block,
Filling the insertion holes on the upper and lower surfaces with a soft adhesive to form an adhesive layer,
And the damping tombstone characterized by being formed by inserting the buffer body across the upper and lower adhesive layers. The damping tombstone according to claim 1, wherein the buffer body is formed in a cylindrical shape from a mesh-like woven fabric. The damping tombstone according to claim 1, wherein the buffer is formed in a strip shape from a mesh-like woven fabric. The damping tombstone according to claim 1, wherein the buffer body has a bias texture.

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