JP6814478B2 - Seismic unit - Google Patents

Description

The present invention relates to seismic units that provide seismic performance to stoves.

Currently, there are no seismic safety standards for stoves placed indoors as heaters or interiors. However, since the stove weighs about 100 kg to 200 kg, for example, when an earthquake with a seismic intensity of 4 or 5 occurs, the building itself does not collapse, but the stove moves and damages the walls and floor of the building, and sometimes windows, etc. There is a risk of breaking through the stove and jumping out to the outdoors, damaging the building.

Here, there are various forms of the stove, and it is composed of a stove body provided with a combustion chamber for burning solid fuel such as firewood and a plurality of legs that support the stove body in a state of being separated from the floor surface. There is something. As a method of preventing the above-mentioned damage in such a stove, a method of fixing the legs to the floor surface can be mentioned. Further, for example, as described in Patent Document 1, a configuration including a base and a sliding plate that can move horizontally on the base with the legs of the stove fixed is also conceivable.

Japanese Unexamined Patent Publication No. 2014-224613

However, if the legs are fixed, all the stress generated by the shaking of the stove body when an earthquake occurs is applied to the legs, and the legs may break. If the leg of the stove breaks, the stove will tip over and damage the floor and walls of the building, and when using the stove, hot combustibles will be scattered indoors from the combustion chamber of the fallen stove, causing a fire. There is a problem that it may cause.

In addition, the stove emphasizes the aesthetics of the interior. However, in the configuration of Patent Document 1, since the base is arranged on the floor of the building so as to project larger than the stove, there is a risk of spoiling the aesthetic appearance of the stove as an interior.

The present invention has been made in view of the above-mentioned problems, and its main purpose is to provide a seismic unit that prevents damage to a building caused by a stove tipping over in the event of an earthquake and does not spoil the aesthetic appearance of the stove interior. This is an issue.

The seismic isolation unit of the present invention is used for a stove that is arranged indoors in a building and has a stove body provided with a combustion chamber for burning solid fuel and at least one or more legs that separate the stove body from the floor surface. The seismic unit is a stove-side fixing portion attached to the bottom surface of the stove body, a building-side fixing portion arranged directly under the stove body and fixed to the floor surface, the stove-side fixing portion and the above. It is characterized by including a connecting portion for connecting the fixing portion on the building side and fixing the fixing portion on the stove side to the fixing portion on the building side.

According to the above configuration, the stove main body is fixed to the building by fixing the stove side fixing portion attached to the bottom surface of the stove main body to the building side fixing portion via the connecting portion. Therefore, since the shaking of the stove body is limited in the event of an earthquake, the stress applied to the legs is reduced and the stove is prevented from moving indoors to prevent damage to the building and fire caused by the stove. Can be done.

Further, since both the stove-side fixing portion and the building-side fixing portion are arranged directly under the stove main body, it is difficult to see them and it is possible to prevent the stove from spoiling the aesthetic appearance of the interior.

As one embodiment of the seismic unit of the present invention, at least one of the stove-side fixing portion and the building-side fixing portion may have a substantially rectangular parallelepiped shape.

With the above configuration, the contact area between the stove side fixing part and the stove body or the building side fixing part and the floor surface is further expanded to more reliably prevent the stove body from shaking, and the stove moves indoors. Can be prevented.

In another embodiment of the seismic unit of the present invention, the stove-side fixing portion has a substantially rectangular parallelepiped shape and extends vertically upward from the opposing both end edges of the upper surface arranged close to the stove body. Examples include those that further include a section.

Normally, when attaching the fixed portion on the stove side to the bottom surface of the stove body, it is necessary to lay the stove sideways so that the bottom surface of the stove body is exposed. However, in the stove further provided with the above-mentioned extension portion, if the extension portion is attached to the stove body through the gap between the stove body and the floor surface without lying down, the stove side fixing portion can be attached to the stove body. The work efficiency of installing the stove can be improved.

Another embodiment of the seismic unit of the present invention is one in which the connecting portion is composed of a plurality of rods inserted and arranged between the stove-side fixing portion and the building-side fixing portion. Can be done.

According to the above configuration, the connecting portion is composed of a rod body through which the stove-side fixing portion and the building-side fixing portion are inserted. Therefore, if the rod is inserted through the stove side fixing part and the building side fixing part, even if the positions of the stove side fixing part and the building side fixing part are changed, the stove side fixing part and the building side fixing part are still connected. It can be connected with a rod. Therefore, the seismic unit of the present invention can be attached regardless of the model number and size of the stove. Further, by using a plurality of rods, the stress applied in the circumferential direction of the stove side fixing portion can be dispersed in the event of an earthquake, the stove fixing portion is detached from the stove body, and the seismic resistance unit of the present invention is detached from the stove body. Can be prevented.

According to the present invention, it is possible to provide a seismic resistance unit that prevents damage to a building caused by a fall of the stove in the event of an earthquake and does not spoil the aesthetic appearance of the interior of the stove.

The schematic diagram which shows the seismic-resistant unit in 1st Embodiment. The perspective view which shows the seismic-resistant unit in 1st Embodiment. The perspective view which shows the seismic-resistant unit in the modified example of 1st Embodiment. The perspective view which shows the seismic unit in the 2nd Embodiment. The schematic diagram which shows the seismic-resistant unit in 3rd Embodiment. The perspective view which shows the seismic-resistant unit in 3rd Embodiment. The plan view which shows the seismic unit in 3rd Embodiment. The graph which shows the test result of sample 1 and sample 2 when the Hyogo-ken Nanbu Earthquake Kobe wave is reproduced. A graph showing acceleration and displacement that reproduces the Hyogo-ken Nanbu Earthquake Kobe wave. The graph which shows the test result of sample 1 and sample 2 when the Tohoku-Pacific Ocean Earthquake Haga wave is reproduced. A graph showing acceleration and displacement that reproduces the Tohoku-Pacific Ocean Earthquake Haga wave. The graph which shows the test result of the sample 1 and the sample 2 when the Kumamoto earthquake Mashiki wave is reproduced. A graph showing acceleration and displacement that reproduces the Kumamoto earthquake Mashiki wave.

The seismic unit of the present invention prevents the movement and damage of a stove arranged indoors in a building when an earthquake occurs. The details will be described below with reference to the drawings.

First, the stove will be described.
The stove 100 warms the temperature in the room by burning solid fuel such as firewood and emitting light having a far infrared wavelength. As shown in FIG. 1, the stove 100 includes a combustion chamber 105 for burning solid fuel such as firewood and a stove main body 103 having a housing shape including a window 101 made of a translucent member communicating with the combustion chamber 105. A chimney 102 for exhausting smoke generated in the combustion chamber 105 to the outside, and a plurality of legs extending vertically downward from the four corners of the bottom surface of the stove body 103 to separate the stove body 103 from the floor surface. It is provided with a unit 104.

Further, the stove main body 103 is provided with an ash removing unit 106 that projects vertically downward from the bottom surface of the stove main body 103 and collects ash generated in the combustion chamber 105.

<First Embodiment>
The seismic unit 1 in the first embodiment includes a stove-side fixing portion 2 attached to the bottom surface of the stove main body 103, a building-side fixing portion 3 arranged directly under the stove main body 103 and fixed to the floor surface, and a stove-side fixing portion 3. A connecting portion 4 for connecting the portion 2 and the building-side fixing portion 3 and fixing the stove-side fixing portion 2 to the building-side fixing portion 3 is provided.

The stove-side fixing portion 2 is fixed to the stove 100, and includes a substantially rectangular parallelepiped-shaped upper frame body 2a arranged vertically downward and having one side open, as shown in FIGS. 1 and 2. A plurality of first hole portions 7 for fixing to the stove main body 103 are provided on the vertical upper surface of the upper frame body 2a. The stove-side fixing portion 2 is attached to the stove main body 103 by using a fixing tool such as a bolt.

The building-side fixing portion 3 is arranged directly below the stove-side fixing portion 2 and is fixed to the building. As shown in FIG. 2, the lower frame body 5 having a substantially rectangular parallelepiped shape in which both sides in the vertical direction are open is provided. On both side surfaces of the lower frame body 5 facing each other, plate-shaped bodies 6 having a rectangular shape extending in the horizontal direction from one end edge in contact with the floor surface are provided. By fixing each of the plate-shaped bodies 6 to the floor surface of the building with a fixing tool such as a bolt, the building side fixing portion 3 is fixed to the building.

Here, the opening of the upper frame body 2a of the stove side fixing portion 2 is configured to be larger than the lower frame body 5 of the building side fixing portion 3, and the height of the lower frame body 5 of the building side fixing portion 3 is increased. The height is configured to be higher than the height of the upper frame body 2a of the stove side fixing portion 2. Therefore, when the stove-side fixing portion 2 and the building-side fixing portion 3 are arranged respectively, as shown in FIG. 2, the building-side fixing portion 3 is fitted into the opening of the stove-side fixing portion 2, and the side of the upper frame body 2a. The peripheral surface and the side peripheral surface of the lower frame body 5 are arranged so as to overlap each other.

As shown in FIGS. 1 and 2, the connecting portion 4 connects the stove side fixing portion 2 and the building side fixing portion 3 and fixes the stove side fixing portion 2 to the building side fixing portion 3. Therefore, in the present embodiment, a fixing tool 4a such as a bolt is used.

The connecting portion 4 is fixed on the stove side by fixing the portion where the side peripheral surface of the lower frame body 5 of the building side fixing portion 3 and the side peripheral surface of the upper frame body 2a of the stove side fixing portion 2 overlap each other. The part 2 and the building side fixing part 3 are connected.

The seismic unit 1 configured as described above attaches the stove body 103 to the building by fixing the stove side fixing portion 2 attached to the bottom surface of the stove body 103 to the building side fixing portion 3 via the connecting portion 4. Fix against. Therefore, it is possible to limit the shaking of the stove body 103 when an earthquake occurs, so that the load applied to the legs 104 can be reduced and the stove 100 can be prevented from moving indoors, resulting in damage to the building caused by the stove 100. Damage such as fire can be prevented.

Further, since both the stove-side fixing portion 2 and the building-side fixing portion 3 are arranged directly under the stove main body 103, it is difficult to see them and it is possible to prevent the stove 100 from spoiling the aesthetic appearance as an interior.

Further, since the stove-side fixing portion 2 and the building-side fixing portion 3 have a substantially rectangular parallelepiped shape, the contact area between the stove-side fixing portion 2 and the stove main body 103 or the building-side fixing portion 3 and the floor surface can be further expanded to be more reliable. It is possible to reduce the load applied to the leg portion 104 of the stove 100 and prevent the stove 100 from moving in the room.

In addition, even if the length of the leg portion 104 in the vertical direction changes due to the configuration in which the stove side fixing portion 2 and the building side fixing portion 3 are formed of separate members and these are connected by the connecting portion 4, the present implementation is carried out. It is possible to attach the seismic unit 1 in the form.

An example of a modification of the first embodiment is the seismic unit 1'shown in FIG. This seismic unit 1'consists of a connecting portion 4'with a contact plate 8 and a fixing tool 9 such as a bolt.

The cover plate 8 is made of a metal plate, and is arranged so as to cover the side peripheral surface of the lower frame body 5 of the building side fixing portion 3 from the side peripheral surface of the upper frame body 2a of the stove side fixing portion 2. Further, the cover plate 8 is provided with a plurality of holes. The fixing tool 9 is arranged in the hole portion, and fixes the stove side fixing portion 2 to the building side fixing portion 3 via the cover plate 8.

As a result, depending on the form of the stove 100, the distance between the floor surface and the stove body 103 is long, and the side peripheral surface of the upper frame body 2a of the stove side fixing portion 2 and the side peripheral surface of the lower frame body 5 of the building side fixing portion 3 Even when the area where the two overlaps with each other is narrow, the stove-side fixing portion 2 and the building-side fixing portion 3 can be connected by the cover plate 8 of the connecting portion 4'.

<Second Embodiment>
The seismic unit 10 in the second embodiment has a structure of the stove-side fixing portion 12 different from that in the first embodiment. Since the other parts are the same as those in the first embodiment, the same reference numerals are given and the description thereof will be omitted.

The stove-side fixing portion 12 is fixed to the stove 100, and as shown in FIG. 4, includes an upper frame body 12a having a substantially rectangular parallelepiped shape with one side open vertically arranged below.

Stretched portions 13 extending vertically upward are provided on the upper end edges of the opposite side surfaces of the upper frame body 12a.

A plurality of through holes 14 for fixing to the stove main body 103 are formed in the stretched portion 13 at equal intervals. Since the first hole portion 7 is the same as that of the first embodiment, the description thereof will be omitted.

The seismic unit 10 in the second embodiment has the following special effects.

Normally, when the stove-side fixing portion 12 having a substantially rectangular parallelepiped shape is attached to the bottom surface of the stove body 103, it is necessary to lay the stove 100 sideways so that the bottom surface of the stove body 103 is exposed. However, in the seismic unit 10 of the second embodiment, the extending portion 13 is applied to the side surface of the ash removing portion 106 protruding from the bottom surface of the stove main body 103 through the gap between the stove main body 103 and the floor surface to penetrate the extending portion 13. If a fixing tool such as a bolt is attached from the hole 14, the stove-side fixing portion 12 can be attached to the stove body 103. Therefore, it is not necessary to lay the stove 100 sideways, and the work efficiency can be improved.

<Third Embodiment>
The seismic unit 20 in the third embodiment will be described. The same parts as those in the first embodiment and the second embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 5, 6 and 7, the seismic units 20 in the third embodiment are different from the first and second embodiments in the configurations of the stove-side fixing portion 22, the building-side fixing portion 23 and the connecting portion 24. ing.

As shown in FIGS. 6 and 7, the stove-side fixing portion 22 includes a housing 22a having a rectangular parallelepiped shape. A plurality of through holes 25 penetrating the both side surfaces are formed on the opposite side surfaces of the housing 22a, and two through holes 25 are provided in the present embodiment. Further, a plurality of first hole portions 7 are provided at the same positions on both sides of the housing 22a facing the vertical direction.

As shown in FIGS. 6 and 7, the building-side fixing portion 23 includes a mounting member 23a formed of a pair of substantially L-shaped plate-shaped bodies.

The one surface 123a that is in contact with the floor surface of the mounting member 23a is provided with two vertically elongated second hole portions 26 having an elliptical shape at both ends, and the one surface 123b that stands upright from the floor surface is vertically downward from the edge portion. Two vertically long notches 27 having a semi-elliptical shape to be stretched are provided.

The two notches 27 are configured to have an interval similar to the distance provided by the two through holes 25 of the stove-side fixing portion 22, and the opening width of the through holes 25 and the opening width of the notch 27 are also It is about the same.

The connecting portion 24 is composed of a plurality of cylindrical rod bodies 24a, and the diameter of the cross section of the rod body 24a is configured to be smaller than the opening diameter of the through hole 25 and the notch 27 described above. Has been done. Further, the axial length of the rod body 24a is set so long that it can sufficiently penetrate the through holes 25 formed on both side surfaces of the housing 22a of the stove side fixing portion 22. Although not shown, thread cutting is formed on the rod body 24a over the entire side peripheral surface thereof.

A method of mounting the seismic unit 20 configured as described above will be described.

First, as shown in FIG. 7, the rod body 24a of the connecting portion 24 is inserted into the through hole 25 of the stove side fixing portion 22, and both ends of the rod body 24a are projected from the through hole 25 of the housing 22a. In this state, the stove side fixing portion 22 is fixed to the stove main body 103.

Next, the building side fixing portion 23 is arranged on the floor surface with a sufficient interval for sandwiching the stove side fixing portion 22, and bolts are provided from the second hole portion 26 provided on the one surface 123a that is in contact with the floor surface. Etc. are inserted to fix the floor surface and the building side fixing portion 23.

In this state, the rod body 24a of the connecting portion 24 attached to the stove side fixing portion 22 is fitted into the notch 27 on the one side 123b that stands upright from the floor surface of the building side fixing portion 23, and the rod is used with a fixing tool such as a bolt. The body 24a is fixed to the building side fixing portion 23. As a result, the stove-side fixing portion 22 and the building-side fixing portion 23 are connected by the connecting portion 24.

In the seismic unit 20 of the third embodiment, since the stove side fixing portion 22 and the building side fixing portion 23 are connected via the rod body 24a, the rod body 24a is inserted into the stove side fixing portion 22 and the building side fixing portion 23. In this state, even if the positions of the stove-side fixing portion 22 and the building-side fixing portion 23 are changed, the stove-side fixing portion 22 and the building-side fixing portion 23 can be connected by the rod body 24a. Therefore, the seismic unit 20 of the present invention can be attached regardless of the model number and size of the stove 100. Further, by using the plurality of rods 24a, it is possible to disperse the force applied in the circumferential direction of the stove side fixing portion 22 and prevent the stove side fixing portion 22 from coming off from the building side fixing portion 23 .

Further, by configuring the notch 27 in a vertically long shape, when the rod body 24a is fixed to the building side fixing portion 23, the fixing position can be appropriately changed according to the length of the leg portion 104 in the vertical direction. ..

The present invention is not limited to the above-described configuration.
For example, in each of the first embodiment, the second embodiment, and the third embodiment, the configuration of the stove side fixing portion and the configuration of the building side fixing portion may be interchanged. Further, the one that fixes the stove fixing portion to the stove and the one that fixes the building side fixing portion to the building are not limited to the fixing tool, and an adhesive or the like can also be used. Further, the number of fixing tools can be freely changed as appropriate.

Further, the number of rods constituting the connector in the third embodiment may be two or more. Further, the number and shape of the first hole portion, the second hole portion, the through hole, the notch and the like can be appropriately changed.

In addition, various configurations described in the first embodiment, the second embodiment, and the third embodiment may be combined.

The present invention can be modified in various ways without contrary to the gist thereof.

Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited to the following Examples.

The following tests were conducted to investigate the seismic performance of the seismic units of the present invention.

The following samples were used for the test.
[Sample 1]
S-43 manufactured by Nester Martin Co., Ltd. was used as the stove, and the seismic unit described in the third embodiment as the seismic unit of the present invention was attached to the stove body.
[Sample 2]
A Nester Martin S-43 was used as the stove, and all the legs of this stove were fixed to the floor.

[Test method]
Seismic tests of samples 1 and 2 configured as described above are performed by using the strong seismic response test equipment installed at the Disaster Prevention Research Institute of Kyoto University to generate simulated earthquakes that reproduce the following three types of earthquakes. Was done.
(1) Hyogo-ken Nanbu Earthquake "Kobe Wave"
(2) Tohoku-Pacific Ocean Earthquake "Haganami"
(3) Kumamoto Earthquake "Mashiki Wave"

Specifically, the acceleration and displacement simulating the above-mentioned earthquake were reproduced in the strong motion response test device, and the strain amount of the legs in the X and Y directions of the sample placed on the shaking table was measured.
For this measurement, sensors were attached to the front surface (Y direction) and the side surface (X direction) of the sample stove, respectively, at the boundary between the stove body and the legs. This sensor is a strain sensor, and is composed of a long metal piece to which both ends are attached so as to straddle the boundary between the stove body and the leg, and a sensor body fixed to the metal piece. The sensor is also connected to an amplifier and an A / D converter. With this configuration, when a force is applied to the legs due to the shaking of an earthquake, the metal plate bends and tries to return, and the sensor body detects this change as a resistance value. This detected signal is amplified by an amplifier, digitally converted by an A / D converter or the like, output, and then calculated as a strain amount.

The test results for simulating the earthquakes (1), (2), and (3) are shown below.

(1) Test results of the Hyogo-ken Nanbu Earthquake "Kobe Wave" First, the test results of the Hyogo-ken Nanbu Earthquake "Kobe Wave" are shown in FIGS. 8 and 9.
As shown in FIG. 8, in the sample 2 in which only the legs are fixed, the legs are distorted in proportion to the displacement and acceleration of the shaking table shown in FIG. 9, whereas the seismic unit of the present invention is used. It can be seen that the installed sample 1 has almost no strain on the legs.

(2) Tohoku-Pacific Ocean Earthquake "Haganami"
Next, the test results of the 2011 off the Pacific coast of Tohoku Earthquake "Haganami" are shown in FIGS. 10 and 11.
As shown in FIG. 10, in the sample 2 in which only the legs are fixed, strain is generated in the legs in proportion to the displacement and acceleration of the shaking table shown in FIG. 11 in both the X direction and the Y direction as in (1). On the other hand, it can be seen that the sample 1 in which the seismic unit of the present invention is installed has almost no strain on the legs.

(3) Kumamoto Earthquake "Mashiki Wave"
Finally, the test results of the Kumamoto earthquake "Mashiki wave" are shown in FIGS. 12 and 13.
As shown in FIG. 12, the sample 2 in which only the legs are fixed is attached to the legs in proportion to the displacement and acceleration of the shaking table shown in FIG. 13 in both the X and Y directions as in (1) and (2). It can be seen that while the strain is generated, the sample 1 in which the seismic unit of the present invention is installed has almost no strain on the legs.

From the test results of (1), (2), and (3) above, it is clear that when the seismic unit in the present invention is used, the legs are not distorted and the stress applied to the legs is significantly reduced. It became. Therefore, if the seismic unit according to the present invention is used, it is possible to prevent the legs from breaking due to the shaking of the earthquake and prevent the damage to the building caused by the fall of the stove in the event of an earthquake.

1, 10, 20 ... Seismic units 2, 12, 22 ... Stove side fixing parts 3, 13, 23 ... Building side fixing parts 4, 14, 24 ... Connecting parts 100 ... Stove 103・ ・ ・ Stove body 104 ・ ・ ・ Legs

Claims (2)

A seismic unit used for a stove that is arranged indoors in a building and has a combustion chamber for burning solid fuel and at least one leg that separates the stove body from the floor surface.
The stove side fixing part attached to the bottom surface of the stove body and
A building-side fixing portion that is arranged directly under the stove body and fixed to the floor surface,
A connecting portion that connects the stove-side fixing portion and the building-side fixing portion and fixes the stove-side fixing portion to the building-side fixing portion is provided.
The stove-side fixing portion includes a housing having a substantially rectangular parallelepiped shape, and two pair of through holes penetrating the both side surfaces are provided on both side surfaces of the housing at predetermined intervals.
The building-side fixing portion includes a pair of plate-shaped bodies having a substantially L-shape, and one surface of the plate-shaped body that stands upright from the floor surface has a notch extending vertically downward from the upper end edge portion. Two are provided at the positions corresponding to
The connecting portion comprises two rods and
A seismic unit characterized in that the rod body is inserted and arranged in the through hole and the notch, respectively. The seismic unit according to claim 1, further comprising an extension portion of the stove-side fixing portion extending vertically upward from the opposite both end edges of the upper surface arranged close to the stove body.

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