JP6102523B2 - Hot water storage water heater - Google Patents

Hot water storage water heater Download PDF

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JP6102523B2
JP6102523B2 JP2013114188A JP2013114188A JP6102523B2 JP 6102523 B2 JP6102523 B2 JP 6102523B2 JP 2013114188 A JP2013114188 A JP 2013114188A JP 2013114188 A JP2013114188 A JP 2013114188A JP 6102523 B2 JP6102523 B2 JP 6102523B2
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reinforcing
water heater
washer
hot water
leg
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JP2014231976A (en
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謙介 松尾
謙介 松尾
恭平 飯田
恭平 飯田
正義 大河原
正義 大河原
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Mitsubishi Electric Corp
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Description

本発明は、貯湯式給湯機に関する。   The present invention relates to a hot water storage type water heater.

水を加熱する加熱手段(例えばヒートポンプ装置等)により生成した高温の湯を貯湯タンクに貯え、必要に応じて貯湯タンクから外部へ湯を供給する貯湯式給湯機が広く用いられている。一般に、貯湯式給湯機は、底面に複数の支持脚を備え、基礎等の設置面に固定したアンカーボルト等の固定具に、ナット等の締結具で支持脚を締結することにより、設置面に固定される。貯湯タンク内は湯水で常に満水状態に維持されるため、貯湯式給湯機は重量物となる。そのため、地震の揺れが発生した場合には、貯湯式給湯機の支持脚に大きな負担が掛かる。このような貯湯式給湯機には、大地震の際にも、傾斜したり転倒したりしないような耐震性が要求される。   2. Description of the Related Art Hot water storage water heaters that store hot water generated by a heating means for heating water (for example, a heat pump device) in a hot water storage tank and supply hot water from the hot water storage tank to the outside as needed are widely used. Generally, a hot water storage type water heater has a plurality of support legs on the bottom surface, and is fastened to the installation surface by fastening the support legs with a fastener such as a nut to a fixture such as an anchor bolt fixed to the installation surface such as a foundation. Fixed. Since the hot water storage tank is always filled with hot water, the hot water storage water heater is heavy. For this reason, when an earthquake shakes, a heavy burden is placed on the support legs of the hot water storage type water heater. Such a hot water storage type water heater is required to have an earthquake resistance that does not tilt or fall even in the event of a large earthquake.

特許文献1には、貯湯式給湯機の支持脚において、給湯機本体と固定される上面板と、上面板の端部から折れ曲がって設けられて上面板を支持し、対向する2枚の側面板と、折り曲げ加工された金属板により側面板および上面板と一体形成され、アンカーボルト等の固定具が貫通する取付穴を有する底面板とを備え、底面板が複数枚重なっているものが開示されている。   In Patent Document 1, in a support leg of a hot water storage type hot water heater, an upper surface plate fixed to the main body of the water heater, and two upper side plates that are bent from an end portion of the upper surface plate to support the upper surface plate and face each other. And a bottom plate having a mounting hole that is integrally formed with a side plate and a top plate by a bent metal plate and through which a fixing tool such as an anchor bolt passes, and a plurality of bottom plates overlap each other is disclosed. ing.

特開2011−12896号公報JP 2011-12896 A

近年、貯湯式給湯機には、耐震性の更なる向上が求められている。貯湯式給湯機の耐震性を向上するためには、アンカーボルト等に固定される支持脚の底面部の強化が重要となる。特許文献1の発明によれば、底面板を複数枚重ねているので、支持脚の材料となる金属板の厚さを厚くしたり、材料強度の高い高価な材料を使用したりすることなく、支持脚の底面部を強化することができる。しかしながら、金属板の折り曲げ加工によって、側面板および上面板と一体に形成する底面板が複数枚重なるように加工することは、複雑な板金加工を要する。このため、製造コストを低減しにくいという問題がある。   In recent years, hot water storage type water heaters are required to further improve earthquake resistance. In order to improve the earthquake resistance of the hot water storage type water heater, it is important to reinforce the bottom portion of the support leg fixed to the anchor bolt or the like. According to the invention of Patent Document 1, since a plurality of bottom plates are stacked, without increasing the thickness of the metal plate that is the material of the support legs or using an expensive material with high material strength, The bottom surface of the support leg can be strengthened. However, processing by bending a metal plate so that a plurality of bottom plates integrally formed with the side plate and the top plate overlap each other requires complicated sheet metal processing. For this reason, there exists a problem that it is difficult to reduce manufacturing cost.

本発明は、上述のような課題を解決するためになされたもので、給湯機本体を支持する支持脚を低コストで強化することができ、耐震性の向上と低コストとを両立することが可能な貯湯式給湯機を提供することを目的とする。   The present invention has been made to solve the above-described problems, and can support the supporting legs that support the water heater main body at low cost, and can achieve both improvement in earthquake resistance and low cost. An object is to provide a hot water storage type hot water heater that can be used.

本発明に係る貯湯式給湯機は、給湯機本体と、給湯機本体を設置面上で支持および固定する支持脚と、を備え、支持脚は、脚本体と、脚本体の下方に設けられ、設置面に固定された固定具を貫通させる貫通部を有する底面部と、底面部の二辺からそれぞれ上方に突出し、互いに対向する一対の側面部と、底面部の上面と、固定具に締結される締結具との間に挟まれるように配置され、固定具を貫通させる貫通部と、側面部の内面に接触または近接する両端とを有する補強座金と、補強座金に設けられた補強リブと、を備え、底面部の上面と、脚本体の下端面との間に、補強座金の一部が挿入する溝が設けられているものである。
また、本発明に係る貯湯式給湯機は、給湯機本体と、給湯機本体を設置面上で支持および固定する支持脚と、を備え、支持脚は、脚本体と、脚本体の下方に設けられ、設置面に固定された固定具を貫通させる貫通部を有する底面部と、底面部の二辺からそれぞれ上方に突出し、互いに対向する一対の側面部と、底面部の上面と、固定具に締結される締結具との間に挟まれるように配置され、固定具を貫通させる貫通部と、側面部の内面に接触または近接する両端とを有する補強座金と、補強座金に設けられた補強リブと、を備え、補強リブの両端の端面は、補強座金の底面に対し、直角より小さい角をなすように傾斜した傾斜面になっており、側面部の内面と、補強リブの傾斜面との間に隙間があるものである。
A hot water storage type water heater according to the present invention comprises a water heater main body and a support leg for supporting and fixing the water heater main body on the installation surface, the support leg is provided below the leg main body and the leg main body, Fastened to the fixture, a bottom portion having a penetrating portion that penetrates the fixture fixed to the installation surface, a pair of side portions that protrude upward from the two sides of the bottom portion, and an upper surface of the bottom portion, and the fixture A reinforcing washer that is disposed so as to be sandwiched between the fasteners and has a penetrating portion that penetrates the fixing tool, both ends that are in contact with or close to the inner surface of the side surface portion, and a reinforcing rib provided on the reinforcing washer; And a groove into which a part of the reinforcing washer is inserted is provided between the upper surface of the bottom surface portion and the lower end surface of the leg main body .
The hot water storage type water heater according to the present invention includes a water heater body and support legs for supporting and fixing the water heater body on the installation surface, and the support legs are provided below the leg body and the leg body. A bottom portion having a penetrating portion that penetrates a fixture fixed to the installation surface, a pair of side portions that protrude upward from two sides of the bottom portion, and face each other, an upper surface of the bottom portion, and a fixture A reinforcing washer disposed between the fastener to be fastened and penetrating the fixing tool, a reinforcing washer having both ends in contact with or close to the inner surface of the side surface, and a reinforcing rib provided on the reinforcing washer The end surfaces of both ends of the reinforcing rib are inclined surfaces that are inclined to form an angle smaller than a right angle with respect to the bottom surface of the reinforcing washer, and the inner surface of the side surface portion and the inclined surface of the reinforcing rib There is a gap between them.

本発明によれば、給湯機本体を支持する支持脚を低コストで強化することができ、耐震性の向上と低コストとを両立することが可能となる。   ADVANTAGE OF THE INVENTION According to this invention, the support leg which supports a water heater main body can be strengthened at low cost, and it becomes possible to make an improvement in earthquake resistance and low cost compatible.

本発明の実施の形態1の貯湯式給湯機の概略を示す斜視図である。It is a perspective view which shows the outline of the hot water storage type water heater of Embodiment 1 of this invention. 本発明の実施の形態1の貯湯式給湯機が備える支持脚の斜視図である。It is a perspective view of the support leg with which the hot water storage type water heater of Embodiment 1 of the present invention is provided. 図2中のA−A断面図である。It is AA sectional drawing in FIG. 図3中のB−B断面図である。It is BB sectional drawing in FIG. 図4の一部を拡大した断面図である。It is sectional drawing to which a part of FIG. 4 was expanded. 図3中のC−C断面図の一部を示す断面図である。It is sectional drawing which shows a part of CC sectional drawing in FIG. 本発明の実施の形態1の貯湯式給湯機の支持脚が備える補強座金の斜視図である。It is a perspective view of the reinforcement washer with which the support leg of the hot water storage type water heater of Embodiment 1 of the present invention is provided. 本発明の実施の形態1の貯湯式給湯機の支持脚が備える補強座金の上面図である。It is a top view of the reinforcement washer with which the support leg of the hot water storage type hot water heater of Embodiment 1 of the present invention is provided. 本発明の実施の形態1の貯湯式給湯機の支持脚が備える補強座金の正面図である。It is a front view of the reinforcement washer with which the support leg of the hot water storage type water heater of Embodiment 1 of the present invention is provided. 本発明の実施の形態1の貯湯式給湯機の支持脚が備える補強座金の側面図である。It is a side view of the reinforcement washer with which the support leg of the hot water storage type water heater of Embodiment 1 of the present invention is provided. 比較例の支持脚がアンカーボルトに固定された状態を示す斜視図である。It is a perspective view which shows the state by which the support leg of the comparative example was fixed to the anchor bolt. 比較例の支持脚がアンカーボルトに固定された状態を示す正面図(図11中の矢視D)である。It is a front view (arrow D in Drawing 11) showing the state where the support leg of the comparative example was fixed to the anchor bolt. 比較例の支持脚がアンカーボルトに固定された状態を示す正面図(地震による荷重が印加された場合)である。It is a front view (when the load by an earthquake is applied) which shows the state where the support leg of the comparative example was fixed to the anchor bolt. 本発明の実施の形態1の貯湯式給湯機の支持脚がアンカーボルトに固定された状態を示す斜視図である。It is a perspective view which shows the state by which the support leg of the hot water storage type water heater of Embodiment 1 of this invention was fixed to the anchor bolt. 本発明の実施の形態1の貯湯式給湯機の支持脚がアンカーボルトに固定された状態を示す正面図(図14中の矢視E)である。It is a front view (arrow E in Drawing 14) which shows the state where the support leg of hot water storage type water heater of Embodiment 1 of the present invention was fixed to the anchor bolt. 図15中のF−F断面図の一部を示す断面図である。It is sectional drawing which shows a part of FF sectional drawing in FIG.

以下、図面を参照して本発明の実施の形態について説明する。なお、各図において共通する要素には、同一の符号を付して、重複する説明を省略する。   Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the element which is common in each figure, and the overlapping description is abbreviate | omitted.

実施の形態1.
図1は、本発明の実施の形態1の貯湯式給湯機の概略を示す斜視図である。図1に示すように本実施の形態1の貯湯式給湯機1は、給湯機本体2と、例えばコンクリートの基礎等の設置面60上で給湯機本体2を支持および固定する複数(例えば3本)の支持脚3とを備える。給湯機本体2は、略直方体形状の筐体の内部に、湯水を貯留する貯湯タンク、配管類、ポンプ類、弁類、熱交換器、制御用機器等が収納された構成となっているが、これらの内部機器の図示は省略する。支持脚3は、給湯機本体2の底部に固定されている。また、給湯機本体2には、水源からの水を供給する給水配管、湯を外部の端末に供給する給湯配管、電源線等が接続されているが、本発明の特徴には直接関連の無い内容であるため、図示を省略する。また、貯湯式給湯機1は、水を加熱して湯を生成する加熱手段(例えば、ヒートポンプ装置、電気ヒータ、太陽熱集熱器等)を備えるが、図示を省略する。加熱手段は、給湯機本体2内に設けられていてもよいし、給湯機本体2と別体になっていてもよい。
Embodiment 1 FIG.
FIG. 1 is a perspective view showing an outline of a hot water storage type water heater according to Embodiment 1 of the present invention. As shown in FIG. 1, the hot water storage type water heater 1 of the first embodiment includes a plurality of (for example, three) water heater main bodies 2 and a plurality of (for example, three) supporting and fixing the water heater main bodies 2 on an installation surface 60 such as a concrete foundation. ) Support legs 3. The water heater main body 2 has a configuration in which a hot water storage tank for storing hot water, piping, pumps, valves, a heat exchanger, a control device, and the like are housed inside a substantially rectangular parallelepiped housing. These internal devices are not shown. The support leg 3 is fixed to the bottom of the water heater main body 2. The hot water supply body 2 is connected to a water supply pipe for supplying water from a water source, a hot water supply pipe for supplying hot water to an external terminal, a power line, and the like, which are not directly related to the features of the present invention. Since it is the contents, illustration is omitted. Moreover, although the hot water storage type water heater 1 is provided with heating means (for example, a heat pump device, an electric heater, a solar heat collector, etc.) for generating hot water by heating water, illustration is omitted. The heating means may be provided in the water heater main body 2 or may be separated from the water heater main body 2.

図2は、本実施の形態1の貯湯式給湯機1が備える支持脚3の斜視図である。図2に示すように、支持脚3は、脚本体11と、底面部21と、一対の側面部25とを備える。脚本体11は、図2中の左側面、右側面、後面および上面の4面を金属板で覆うとともに、正面側に補強リブ12を有し、略箱体状(柱状)をなしている。脚本体11の各面は、例えばスポット溶接等の手段で、互いに接合されている。本実施の形態1では、脚本体11の上面の左右の端部からそれぞれ下方に延びた耳部13と、左右の側面とが重なるように構成し、この重なり部をスポット溶接等の手段で接合している。このような構成により、脚本体11の剛性を高めることができる。その結果、脚本体11は、給湯機本体2の重量を確実に支えるだけでなく、地震等の外力が印加された場合であっても容易に変形しないような剛性を有する。また、脚本体11の上面には、ボルト等を介して給湯機本体2の底面に固定される際に使用するボルト穴15が複数設けられている。   FIG. 2 is a perspective view of the support leg 3 provided in the hot water storage type water heater 1 of the first embodiment. As shown in FIG. 2, the support leg 3 includes a leg main body 11, a bottom surface portion 21, and a pair of side surface portions 25. The leg main body 11 covers the four surfaces of the left side, right side, rear and top surfaces in FIG. 2 with a metal plate and has reinforcing ribs 12 on the front side, and has a substantially box shape (columnar shape). Each surface of the leg body 11 is joined to each other by means such as spot welding. In the first embodiment, the ear part 13 extending downward from the left and right ends of the upper surface of the leg main body 11 is configured to overlap the left and right side surfaces, and the overlapping part is joined by means such as spot welding. doing. With such a configuration, the rigidity of the leg body 11 can be increased. As a result, the leg body 11 not only reliably supports the weight of the water heater body 2 but also has a rigidity that does not easily deform even when an external force such as an earthquake is applied. Further, a plurality of bolt holes 15 are provided on the upper surface of the leg main body 11 to be used when being fixed to the bottom surface of the water heater main body 2 via bolts or the like.

底面部21は、脚本体11の下側に固定されている。底面部21は、略長方形状の板状をなしている。一対の側面部25は、底面部21の二つの長辺からそれぞれ垂直上方に突出し、互いに対向する。底面部21と側面部25とは、材料となる金属板を折り曲げ加工することにより、一体的に形成されている。側面部25の中央部分には、高さが高くなった接合部4が設けられている。脚本体11の側面と、接合部4とは、例えば溶接等により強固に接合されている。これにより、脚本体11と、底面部21とが、側面部25を介して、連結固定されている。底面部21の下面は、設置面60に対する十分な接触面積を有する接地面を構成している。これにより、貯湯式給湯機1の重量や地震による荷重が設置面60の一部に集中しないよう分散させると共に、貯湯式給湯機1の前後左右あらゆる方向からの地震荷重に対して安定性を得ることができる。本実施の形態1では、底面部21は、脚本体11の断面の範囲を超えて、水平方向(図2中の前方および後方)に突出している。これにより、設置面60に対する底面部21の接触面積を十分に大きくすることができ、地震時などの安定性を更に向上することができる。また、側面部25は、底面部21のほぼ全長に渡って、設けられている。側面部25は、底面部21を補強して剛性を高める補強リブとしても機能する。底面部21の長手方向に沿って設けられた側面部25が補強リブとして機能することにより、底面部21の剛性を向上することができる。   The bottom surface portion 21 is fixed to the lower side of the leg body 11. The bottom surface portion 21 has a substantially rectangular plate shape. The pair of side surface portions 25 protrude vertically upward from the two long sides of the bottom surface portion 21 and face each other. The bottom surface portion 21 and the side surface portion 25 are integrally formed by bending a metal plate as a material. In the central portion of the side surface portion 25, a joint portion 4 having a high height is provided. The side surface of the leg main body 11 and the joint portion 4 are firmly joined by welding or the like, for example. Thereby, the leg main body 11 and the bottom face part 21 are connected and fixed via the side face part 25. The lower surface of the bottom surface portion 21 constitutes a ground plane having a sufficient contact area with the installation surface 60. Thereby, while dispersing so that the weight of the hot water storage type hot water heater 1 and the load due to the earthquake do not concentrate on a part of the installation surface 60, stability is obtained with respect to the seismic load from all directions before and after the hot water type hot water heater 1. be able to. In the first embodiment, the bottom surface portion 21 protrudes in the horizontal direction (front and rear in FIG. 2) beyond the range of the cross section of the leg main body 11. Thereby, the contact area of the bottom part 21 with respect to the installation surface 60 can be enlarged enough, and stability, such as at the time of an earthquake, can be improved further. The side surface portion 25 is provided over almost the entire length of the bottom surface portion 21. The side surface portion 25 also functions as a reinforcing rib that reinforces the bottom surface portion 21 and increases rigidity. When the side surface portion 25 provided along the longitudinal direction of the bottom surface portion 21 functions as a reinforcing rib, the rigidity of the bottom surface portion 21 can be improved.

本実施の形態1では、底面部21には、設置面60に固定された固定具(本実施の形態1では、後述するアンカーボルト51)を貫通させる貫通部としての貫通穴24が設けられている。ただし、本発明では、底面部21の貫通部は、貫通穴24に代えて、切欠きでもよい。   In the first embodiment, the bottom surface portion 21 is provided with a through-hole 24 as a penetrating portion for penetrating a fixture (an anchor bolt 51 described later in the first embodiment) fixed to the installation surface 60. Yes. However, in the present invention, the through portion of the bottom surface portion 21 may be a notch instead of the through hole 24.

図3は、図2中のA−A断面図である。図3に示すように、本実施の形態1では、貫通穴24の形状は、略十字状になっている。このため、貫通穴24は、アンカーボルト51の位置の、前後方向のバラツキおよび左右方向のバラツキに十分に対応することができる。本発明では、貫通穴24の形状はこのような形状に限定されるものではないが、一般に、貫通穴24の大きさは、アンカーボルト51の位置のバラツキに対応するために、アンカーボルト径に対して、比較的大きくされる。   3 is a cross-sectional view taken along the line AA in FIG. As shown in FIG. 3, in the first embodiment, the shape of the through hole 24 is substantially cross-shaped. For this reason, the through hole 24 can sufficiently cope with variations in the position of the anchor bolt 51 in the front-rear direction and in the left-right direction. In the present invention, the shape of the through hole 24 is not limited to such a shape, but in general, the size of the through hole 24 corresponds to the anchor bolt diameter in order to correspond to the variation in the position of the anchor bolt 51. On the other hand, it is relatively large.

図4は、図3中のB−B断面図である。図5は、図4の一部を拡大した断面図である。図4および図5に示すように、脚本体11は、底面部21の上面23に接触する第一下端面16と、底面部21の上面23に接触しない第二下端面17とを有する。第二下端面17の高さは、第一下端面16に対し、段差を介して、やや高くなっている。第二下端面17は、脚本体11の正面側(補強リブ12側)に位置している。第二下端面17の範囲は、第一下端面16の範囲に比べて、小さくなっている。脚本体11の第二下端面17と、底面部21の上面23との間には、溝5が形成されている。溝5は、後述する補強座金31を取り付ける際、補強座金31と脚本体11とが互いに干渉しないようにするために設けた空間である。溝5の高さ寸法は、後述する補強座金31の肉厚と同等以上の寸法とされる。   4 is a cross-sectional view taken along the line BB in FIG. FIG. 5 is an enlarged cross-sectional view of a part of FIG. As shown in FIGS. 4 and 5, the leg main body 11 has a first lower end surface 16 that contacts the upper surface 23 of the bottom surface portion 21 and a second lower end surface 17 that does not contact the upper surface 23 of the bottom surface portion 21. The height of the second lower end surface 17 is slightly higher than the first lower end surface 16 through a step. The second lower end surface 17 is located on the front side (reinforcing rib 12 side) of the leg body 11. The range of the second lower end surface 17 is smaller than the range of the first lower end surface 16. A groove 5 is formed between the second lower end surface 17 of the leg body 11 and the upper surface 23 of the bottom surface portion 21. The groove 5 is a space provided to prevent the reinforcement washer 31 and the leg main body 11 from interfering with each other when a later-described reinforcement washer 31 is attached. The height of the groove 5 is equal to or greater than the thickness of a reinforcing washer 31 described later.

図6は、図3中のC−C断面図の一部を示す断面図である。図6に示すように、溝5は、脚本体11の第二下端面17と、側面部25の内面と、底面部21の上面23とに囲まれて形成されている。   FIG. 6 is a cross-sectional view showing a part of the CC cross-sectional view in FIG. 3. As shown in FIG. 6, the groove 5 is formed to be surrounded by the second lower end surface 17 of the leg body 11, the inner surface of the side surface portion 25, and the upper surface 23 of the bottom surface portion 21.

次に、図7乃至図10を参照して、本実施の形態1の支持脚3が備える補強座金31の構成について説明する。図7、図8、図9および図10は、それぞれ、補強座金31の斜視図、上面図、正面図および側面図である。これらの図に示す補強座金31は、支持脚3を設置面60のアンカーボルト51に締結する際に使用する座金であるとともに、支持脚3の底面部21を補強する機能を有する部品である。本実施の形態1において、補強座金31は、上面視で略長方形状をなす。支持脚3をアンカーボルト51に締結した状態で、補強座金31の長手方向と、底面部21の長手方向とは、直交する。補強座金31には、補強リブ33が設けられている。本実施の形態1では、補強座金31と補強リブ33とは、金属板を略直角に折り曲げ加工することにより、一体的に形成されている。このため、別部材で構成した補強リブ33を補強座金31に接合する場合に比べて、コストを低減することができる。補強座金31の中央部には、アンカーボルト51を貫通させる貫通部としての貫通穴34が設けられている。貫通穴34は、補強リブ33の長手方向と直交する方向に長い楕円形状の長穴になっている。ただし、本発明では、補強座金31の貫通部は、貫通穴34に代えて、切欠きでもよい。補強座金31の下面(底面)は、底面部21の上面23と接触し、地震の際に支持脚3の底面部21に生じる曲げ力を受圧する受圧面として機能する。支持脚3をアンカーボルト51に締結した状態で、補強座金31の両端31a,31bは、それぞれ、一対の側面部25の内面に接触または近接する。すなわち、補強座金31の一端31aから他端31bまでの長さ(図9中の寸法W)は、一対の側面部25の内面間の距離にほぼ等しい。   Next, with reference to FIG. 7 thru | or FIG. 10, the structure of the reinforcement washer 31 with which the support leg 3 of this Embodiment 1 is provided is demonstrated. 7, 8, 9, and 10 are a perspective view, a top view, a front view, and a side view of the reinforcing washer 31, respectively. The reinforcing washer 31 shown in these drawings is a washer that is used when the support leg 3 is fastened to the anchor bolt 51 of the installation surface 60 and is a part that has a function of reinforcing the bottom surface portion 21 of the support leg 3. In the first embodiment, the reinforcing washer 31 has a substantially rectangular shape when viewed from above. In a state where the support legs 3 are fastened to the anchor bolts 51, the longitudinal direction of the reinforcing washer 31 and the longitudinal direction of the bottom surface portion 21 are orthogonal to each other. The reinforcing washer 31 is provided with reinforcing ribs 33. In the first embodiment, the reinforcing washer 31 and the reinforcing rib 33 are integrally formed by bending a metal plate at a substantially right angle. For this reason, compared with the case where the reinforcement rib 33 comprised by another member is joined to the reinforcement washer 31, cost can be reduced. A through hole 34 is provided in the central portion of the reinforcing washer 31 as a through portion through which the anchor bolt 51 passes. The through hole 34 is an elliptical long hole that is long in a direction orthogonal to the longitudinal direction of the reinforcing rib 33. However, in the present invention, the through portion of the reinforcing washer 31 may be a notch instead of the through hole 34. The lower surface (bottom surface) of the reinforcing washer 31 is in contact with the upper surface 23 of the bottom surface portion 21 and functions as a pressure receiving surface that receives the bending force generated on the bottom surface portion 21 of the support leg 3 during an earthquake. In a state where the support leg 3 is fastened to the anchor bolt 51, both ends 31 a and 31 b of the reinforcing washer 31 are in contact with or close to the inner surfaces of the pair of side surface portions 25, respectively. That is, the length (dimension W in FIG. 9) from one end 31 a to the other end 31 b of the reinforcing washer 31 is substantially equal to the distance between the inner surfaces of the pair of side surface portions 25.

補強リブ33は、アンカーボルト51の固定部を支点として補強座金31の両端部を引き上げようとするような曲げ荷重に対する剛性を高める機能を有する。補強リブ33は、補強座金31の一端31aから他端31bまで延びている。また、補強リブ33の両端の端面は、補強座金31の底面に対し、直角より小さい角をなすように傾斜した傾斜面35になっている。本実施の形態1では、このような補強座金31を支持脚3に備えることで、アンカーボルト51の固定部の近傍では、底面部21の幅全体(一方の側面部25の内面から他方の側面部25の内面まで)を補強座金31で補強することが可能となる。このため、地震の際に最も荷重が集中するアンカーボルト51の固定部の近傍を、低コストで効果的に補強することが可能となる。   The reinforcing rib 33 has a function of increasing rigidity against a bending load that tends to pull up both ends of the reinforcing washer 31 with the fixed portion of the anchor bolt 51 as a fulcrum. The reinforcing rib 33 extends from one end 31a of the reinforcing washer 31 to the other end 31b. The end faces of both ends of the reinforcing rib 33 are inclined surfaces 35 that are inclined with respect to the bottom surface of the reinforcing washer 31 so as to form an angle smaller than a right angle. In the first embodiment, by providing such a reinforcing washer 31 on the support leg 3, the entire width of the bottom surface portion 21 (from the inner surface of one side surface portion 25 to the other side surface in the vicinity of the fixing portion of the anchor bolt 51. (Up to the inner surface of the portion 25) can be reinforced with the reinforcing washer 31. For this reason, it is possible to effectively reinforce the vicinity of the fixing portion of the anchor bolt 51 where the load is concentrated most during an earthquake at low cost.

補強座金31の貫通穴34の開口面積は、底面部21の貫通穴24の開口面積に比べて、小さくなっている。このため、アンカーボルト51に締結するナット52(締結具)と、補強座金31との接触面積を十分に確保することができる。   The opening area of the through hole 34 of the reinforcing washer 31 is smaller than the opening area of the through hole 24 of the bottom surface portion 21. For this reason, the contact area of the nut 52 (fastener) fastened to the anchor bolt 51 and the reinforcing washer 31 can be sufficiently ensured.

次に、本実施の形態1の支持脚3の作用効果を分かり易くするため、比較例の支持脚40について説明する。図11は、比較例の支持脚40がアンカーボルト51に固定された状態を示す斜視図である。図11に示すように、比較例の支持脚40は、脚本体44と、底面部42とを有する。支持脚40は、底面部42に設けられた貫通穴43にアンカーボルト51を通し、略正方形の角座金45を底面部42の上からアンカーボルト51に通し、ナット52をアンカーボルト51に締め付けることで、設置面60に固定される。なお、図11を含め、以下の図では、説明の便宜上、給湯機本体2などを省略して図示する。   Next, in order to make it easy to understand the operational effect of the support leg 3 of the first embodiment, a support leg 40 of a comparative example will be described. FIG. 11 is a perspective view showing a state in which the support leg 40 of the comparative example is fixed to the anchor bolt 51. As shown in FIG. 11, the support leg 40 of the comparative example has a leg main body 44 and a bottom surface portion 42. The support leg 40 passes the anchor bolt 51 through the through hole 43 provided in the bottom surface portion 42, passes the substantially square square washer 45 from the top of the bottom surface portion 42 to the anchor bolt 51, and tightens the nut 52 to the anchor bolt 51. Then, it is fixed to the installation surface 60. In addition, in the following drawings including FIG. 11, the water heater main body 2 and the like are omitted for convenience of explanation.

図12は、比較例の支持脚40がアンカーボルト51に固定された状態を示す正面図(図11中の矢視D)である。図12は、地震の荷重等が加わっていない通常状態を示している。   12 is a front view (arrow D in FIG. 11) showing a state in which the support leg 40 of the comparative example is fixed to the anchor bolt 51. FIG. FIG. 12 shows a normal state where no earthquake load or the like is applied.

図13は、比較例の支持脚40がアンカーボルト51に固定された状態を示す正面図である。図13は、図12と同様に、図11中の矢視Dを示すが、地震による荷重が図中で右方向に印加されたときの支持脚40の変形を示した図である。図13に示すように、地震による荷重が図中で右方向に印加された場合には、底面部42の図中で左側を設置面60から引き剥がそうとするような曲げモーメントが支持脚40に作用する。これにより、支持脚40の底面部42は、角座金45の左端を支点として折れ曲がる。その結果、支持脚40の脚本体44の図中で右方向への傾斜が拡大し、給湯機本体2も右方向へ傾斜する。このような支持脚40の脚本体44の大きな傾斜が、前後左右に繰り返し生じることで、支持脚40の何れかの部位の塑性変形が進み、支持脚40が変形したままになる可能性がある。その結果、地震が収まった後に、給湯機本体2が傾斜したままになるなど、設置面60に対する給湯機本体2の適正な固定状態が失われるおそれがある。   FIG. 13 is a front view showing a state in which the support leg 40 of the comparative example is fixed to the anchor bolt 51. FIG. 13 is a view showing the deformation of the support leg 40 when a load due to an earthquake is applied in the right direction in FIG. As shown in FIG. 13, when a load due to an earthquake is applied in the right direction in the drawing, a bending moment that tends to peel the left side of the bottom surface portion 42 from the installation surface 60 in the drawing is generated. Act on. Thereby, the bottom surface portion 42 of the support leg 40 bends with the left end of the square washer 45 as a fulcrum. As a result, the inclination of the support leg 40 in the right direction in the figure of the leg main body 44 is enlarged, and the water heater main body 2 is also inclined in the right direction. Such a large inclination of the leg main body 44 of the support leg 40 is repeatedly generated from front to back and from side to side, so that plastic deformation of any part of the support leg 40 may proceed, and the support leg 40 may remain deformed. . As a result, there is a possibility that the proper fixing state of the water heater main body 2 with respect to the installation surface 60 may be lost, for example, the water heater main body 2 remains inclined after the earthquake has stopped.

図14は、本実施の形態1の支持脚3がアンカーボルト51に固定された状態を示す斜視図である。図14に示すように、支持脚3は、底面部21に設けられた貫通穴24にアンカーボルト51を通し、その上から補強座金31に設けられた貫通穴34にアンカーボルト51に通し、アンカーボルト51にナット52を取り付けて締め付けることで設置面60に固定されている。補強座金31は、底面部21とナット52とに挟まれた状態で固定されている。また、補強座金31の一部は、脚本体11の第二下端面17と底面部21の上面23との間の溝5に挿入している。   FIG. 14 is a perspective view showing a state in which the support leg 3 of Embodiment 1 is fixed to the anchor bolt 51. As shown in FIG. 14, the support leg 3 passes the anchor bolt 51 through the through hole 24 provided in the bottom surface portion 21, and passes the anchor bolt 51 through the through hole 34 provided in the reinforcing washer 31 from above the anchor bolt 51. The nut 51 is attached to the bolt 51 and tightened to fix the bolt 51 to the installation surface 60. The reinforcing washer 31 is fixed while being sandwiched between the bottom surface portion 21 and the nut 52. A part of the reinforcing washer 31 is inserted into the groove 5 between the second lower end surface 17 of the leg main body 11 and the upper surface 23 of the bottom surface portion 21.

なお、貯湯式給湯機1を設置する手順としては、まず、設置面60にアンカーボルト51を設置する。その後、貯湯式給湯機1を持ち上げ、支持脚3の底面部21の貫通穴24にアンカーボルト51を通す。次に、底面部21の上方から補強座金31を配置する。この際、補強座金31の貫通穴34にアンカーボルト51を通し、底面部21の上面23に補強座金31の下面(底面)を接触させた後、補強座金31の一部が溝5に挿入するよう図14中の矢視Eの方向に補強座金31をスライドさせる。このとき、補強座金31の貫通穴34が長穴になっていることにより、補強座金31がアンカーボルト51に対して移動可能である。その後、アンカーボルト51にナット52を取り付け、締め付ける。このようにして、貯湯式給湯機1は設置面60に強固に固定される。   As a procedure for installing the hot water storage type water heater 1, first, the anchor bolt 51 is installed on the installation surface 60. Thereafter, the hot water storage type water heater 1 is lifted and the anchor bolt 51 is passed through the through hole 24 in the bottom surface portion 21 of the support leg 3. Next, the reinforcing washer 31 is disposed from above the bottom surface portion 21. At this time, the anchor bolt 51 is passed through the through hole 34 of the reinforcing washer 31, the lower surface (bottom surface) of the reinforcing washer 31 is brought into contact with the upper surface 23 of the bottom surface portion 21, and then a part of the reinforcing washer 31 is inserted into the groove 5. The reinforcing washer 31 is slid in the direction of arrow E in FIG. At this time, since the through hole 34 of the reinforcing washer 31 is a long hole, the reinforcing washer 31 can move with respect to the anchor bolt 51. Thereafter, the nut 52 is attached to the anchor bolt 51 and tightened. In this way, the hot water storage type water heater 1 is firmly fixed to the installation surface 60.

図15は、本実施の形態1の支持脚3がアンカーボルト51に固定された状態を示す正面図(図14中の矢視E)である。図15に示すように、補強座金31の両端31a,31bは、側面部25の内面に接触または近接する。このため、アンカーボルト51の周囲において、一方の側面部25の内面から他方の側面部25の内面までの底面部21の幅全体に渡って、底面部21の上面23に補強座金31が接触する。この部位では、底面部21の肉厚が補強座金31の肉厚の分だけ増加したことと等価な状態となる。更に、補強座金31は、補強リブ33によって剛性が高められているため、比較例の支持脚40に比べて、アンカーボルト51の周囲の底面部21の強度を大幅に向上することができる。更に、補強座金31の一部が溝5に挿入しているため、後述のように、補強座金31の左右の端部が上方へ持ち上げられようとしても、脚本体11の第二下端面17が干渉し、補強座金31の変形をより確実に抑えることが可能となる。これにより、補強座金31の変形に対する耐力を更に向上させることが可能となる。   FIG. 15 is a front view (indicated by an arrow E in FIG. 14) showing a state in which the support leg 3 of the first embodiment is fixed to the anchor bolt 51. As shown in FIG. 15, both ends 31 a and 31 b of the reinforcing washer 31 are in contact with or close to the inner surface of the side surface portion 25. Therefore, around the anchor bolt 51, the reinforcing washer 31 contacts the upper surface 23 of the bottom surface portion 21 over the entire width of the bottom surface portion 21 from the inner surface of one side surface portion 25 to the inner surface of the other side surface portion 25. . This portion is equivalent to the thickness of the bottom surface portion 21 being increased by the thickness of the reinforcing washer 31. Further, since the rigidity of the reinforcing washer 31 is enhanced by the reinforcing rib 33, the strength of the bottom surface portion 21 around the anchor bolt 51 can be significantly improved as compared with the support leg 40 of the comparative example. Further, since a part of the reinforcing washer 31 is inserted into the groove 5, even if the left and right ends of the reinforcing washer 31 are lifted upward as will be described later, It interferes and it becomes possible to suppress a deformation | transformation of the reinforcement washer 31 more reliably. Thereby, it is possible to further improve the resistance to deformation of the reinforcing washer 31.

図15に示すように、支持脚3に対し地震による荷重が図中で右方向に印加された場合には、底面部21に生じる曲げモーメントの支点は、補強座金31の一端31aの位置、すなわち側面部25の近傍になる。その結果、底面部21の曲げ荷重は十分に軽減され、底面部21が折れ曲がるように変形することを確実に抑制することができる。その結果、底面部21の変形によって脚本体11の傾斜が拡大することを確実に抑制することができる。このため、支持脚3に対して地震による荷重が前後左右に繰り返し作用した場合であっても、支持脚3が塑性変形することを確実に抑制することができる。よって、地震時の給湯機本体2の転倒を確実に防止すると共に、設置面60に対する給湯機本体2の適正な固定状態が失われることを確実に抑制し、地震の後に給湯機本体2が傾斜したままになるようなことを確実に防止することができる。   As shown in FIG. 15, when an earthquake load is applied to the support leg 3 in the right direction in the figure, the fulcrum of the bending moment generated on the bottom surface portion 21 is the position of one end 31 a of the reinforcing washer 31, that is, Near the side surface portion 25. As a result, the bending load on the bottom surface portion 21 is sufficiently reduced, and the bottom surface portion 21 can be reliably prevented from being bent so as to be bent. As a result, it is possible to reliably suppress the inclination of the leg body 11 from expanding due to the deformation of the bottom surface portion 21. For this reason, even if it is a case where the load by an earthquake acts on the support leg 3 repeatedly front and rear, right and left, it can suppress reliably that the support leg 3 deforms plastically. Therefore, the water heater main body 2 can be prevented from overturning at the time of an earthquake, and the proper fixing state of the water heater main body 2 with respect to the installation surface 60 can be reliably prevented from being lost. It is possible to reliably prevent such a situation from being left.

また、本実施の形態1では、補強リブ33が、補強座金31の一端31aから他端31bまで延びている。このため、補強座金31の全体を補強リブ33によって確実に補強することができる。   In the first embodiment, the reinforcing rib 33 extends from one end 31 a of the reinforcing washer 31 to the other end 31 b. For this reason, the entire reinforcing washer 31 can be reliably reinforced by the reinforcing rib 33.

また、本実施の形態1では、補強リブ33の両端の端面を傾斜面35にしたことにより、以下のような効果が得られる。まず、本実施の形態1と異なり、傾斜面35が無く、補強リブ33の端面が垂直である場合について説明する。この場合、地震による荷重が作用しない状態で、側面部25の内面は、補強リブ33の端面に接触または近接している。そして、地震による荷重が支持脚3に作用すると、脚本体11が僅かに傾斜するため、脚本体11と接合部4で固定された側面部25も僅かに傾斜する。このようにして側面部25が内側に傾斜しようとしたとき、側面部25の内面が補強リブ33の端面に当たって動きを制限される。その結果、接合部4を脚本体11から引き剥がそうとする力が作用する。これに対し、本実施の形態1では、地震による荷重が作用しない状態で、側面部25の内面と、補強リブ33の傾斜面35との間には、隙間がある。そして、地震による荷重が作用し、側面部25が内側に傾斜しようとしたときにも、側面部25が傾斜面35によって動きを強く制限されることはない。よって、接合部4を脚本体11から引き剥がそうとする力が作用することを確実に抑制することができる。このため、地震による荷重が作用した場合であっても、脚本体11と接合部4との固定箇所に過大な力がかかることを確実に抑制することができ、耐震性を更に向上することができる。   In the first embodiment, the end faces at both ends of the reinforcing rib 33 are inclined surfaces 35, so that the following effects can be obtained. First, unlike the first embodiment, a case where there is no inclined surface 35 and the end surface of the reinforcing rib 33 is vertical will be described. In this case, the inner surface of the side surface portion 25 is in contact with or close to the end surface of the reinforcing rib 33 in a state where a load due to an earthquake does not act. And when the load by an earthquake acts on the support leg 3, since the leg main body 11 will incline slightly, the side part 25 fixed by the leg main body 11 and the junction part 4 will also incline slightly. In this way, when the side surface portion 25 is inclined inward, the inner surface of the side surface portion 25 abuts against the end surface of the reinforcing rib 33 and the movement is restricted. As a result, a force acts to peel the joint 4 from the leg body 11. On the other hand, in the first embodiment, there is a gap between the inner surface of the side surface portion 25 and the inclined surface 35 of the reinforcing rib 33 in a state where a load due to an earthquake does not act. Even when a load due to an earthquake acts and the side surface portion 25 tends to incline, the side surface portion 25 is not strongly restricted by the inclined surface 35. Therefore, it is possible to reliably suppress the action of the force for peeling the joint portion 4 from the leg body 11. For this reason, even if it is a case where the load by an earthquake acts, it can suppress reliably that an excessive force is applied to the fixing location of the leg main body 11 and the junction part 4, and can further improve earthquake resistance. it can.

図16は、図15中のF−F断面図の一部を示す断面図である。図16に示すように、補強座金31の一部は、脚本体11の第二下端面17と、底面部21の上面23との間に形成される溝5に挿入している。この構成により、補強座金31の左右の端部を上方へ引き上げようとする荷重が生じても、補強座金31の上面が脚本体11の第二下端面17と干渉することにより、補強座金31の変形を抑制することが可能となる。これにより、耐震性を更に向上することができる。特に、本実施の形態1では、補強座金31の溝5に挿入する部分(図16中で補強座金31の右端部)と、補強リブ33とが、アンカーボルト51を介して、互いに反対側に位置する。このため、溝5と補強リブ33とによって補強座金31の変形を全体的により確実に抑制することができる。なお、補強座金31は、溝5に対しほぼ隙間無く挿入することが好ましい。すなわち、溝5の幅は、補強座金31の厚さとほぼ同じであることが好ましい。   16 is a cross-sectional view showing a part of the FF cross-sectional view in FIG. 15. As shown in FIG. 16, a part of the reinforcing washer 31 is inserted into the groove 5 formed between the second lower end surface 17 of the leg main body 11 and the upper surface 23 of the bottom surface portion 21. With this configuration, even if a load is generated to lift the left and right ends of the reinforcing washer 31 upward, the upper surface of the reinforcing washer 31 interferes with the second lower end surface 17 of the leg body 11, thereby Deformation can be suppressed. Thereby, earthquake resistance can further be improved. In particular, in the first embodiment, the portion to be inserted into the groove 5 of the reinforcing washer 31 (the right end portion of the reinforcing washer 31 in FIG. 16) and the reinforcing rib 33 are opposite to each other via the anchor bolt 51. To position. For this reason, the deformation of the reinforcing washer 31 can be more reliably suppressed as a whole by the groove 5 and the reinforcing rib 33. The reinforcing washer 31 is preferably inserted into the groove 5 with almost no gap. That is, the width of the groove 5 is preferably substantially the same as the thickness of the reinforcing washer 31.

以上説明したように、本実施の形態1によれば、最小限のコストで、支持脚3の強度を十分に増強することができる。このため、低コストで耐震性の高い貯湯式給湯機1を提供することが可能となる。   As described above, according to the first embodiment, the strength of the support leg 3 can be sufficiently increased at a minimum cost. For this reason, it becomes possible to provide the hot water storage type water heater 1 with low cost and high earthquake resistance.

1 貯湯式給湯機、2 給湯機本体、3 支持脚、4 接合部、5 溝、11 脚本体、12 補強リブ、13 耳部、15 ボルト穴、16 第一下端面、17 第二下端面、21 底面部、23 上面、24 貫通穴、25 側面部、31 補強座金、31a,31b 端、33 補強リブ、34 貫通穴、35 傾斜面、40 支持脚、42 底面部、43 貫通穴、44 脚本体、45 角座金、51 アンカーボルト、52 ナット、60 設置面 DESCRIPTION OF SYMBOLS 1 Hot water storage type water heater, 2 Hot water heater main body, 3 Support leg, 4 junction part, 5 groove | channel, 11 Leg main body, 12 Reinforcement rib, 13 Ear part, 15 Bolt hole, 16 1st lower end surface, 17 2nd lower end surface, 21 bottom surface portion, 23 top surface, 24 through hole, 25 side surface portion, 31 reinforcing washer, 31a, 31b end, 33 reinforcing rib, 34 through hole, 35 inclined surface, 40 support leg, 42 bottom surface portion, 43 through hole, 44 leg Main body, 45 square washer, 51 anchor bolt, 52 nut, 60 installation surface

Claims (6)

給湯機本体と、
前記給湯機本体を設置面上で支持および固定する支持脚と、
を備え、
前記支持脚は、
脚本体と、
前記脚本体の下方に設けられ、前記設置面に固定された固定具を貫通させる貫通部を有する底面部と、
前記底面部の二辺からそれぞれ上方に突出し、互いに対向する一対の側面部と、
前記底面部の上面と、前記固定具に締結される締結具との間に挟まれるように配置され、前記固定具を貫通させる貫通部と、前記側面部の内面に接触または近接する両端とを有する補強座金と、
前記補強座金に設けられた補強リブと、
を備え
前記底面部の上面と、前記脚本体の下端面との間に、前記補強座金の一部が挿入する溝が設けられている貯湯式給湯機。
A water heater body,
A support leg for supporting and fixing the water heater body on the installation surface;
With
The support leg is
The leg body;
A bottom surface portion provided below the leg main body and having a penetrating portion for penetrating a fixture fixed to the installation surface;
A pair of side surface portions protruding upward from the two sides of the bottom surface portion and facing each other;
A penetrating portion that is disposed between the upper surface of the bottom surface portion and a fastener fastened to the fixture, and that penetrates the fixture, and both ends that are in contact with or close to the inner surface of the side portion. A reinforcing washer having;
A reinforcing rib provided on the reinforcing washer;
Equipped with a,
And the upper surface of the bottom portion, between the lower end surface of the leg body, hot-water storage type water heater that has is provided a groove portion of the reinforcing washer is inserted.
給湯機本体と、
前記給湯機本体を設置面上で支持および固定する支持脚と、
を備え、
前記支持脚は、
脚本体と、
前記脚本体の下方に設けられ、前記設置面に固定された固定具を貫通させる貫通部を有する底面部と、
前記底面部の二辺からそれぞれ上方に突出し、互いに対向する一対の側面部と、
前記底面部の上面と、前記固定具に締結される締結具との間に挟まれるように配置され、前記固定具を貫通させる貫通部と、前記側面部の内面に接触または近接する両端とを有する補強座金と、
前記補強座金に設けられた補強リブと、
を備え
前記補強リブの両端の端面は、前記補強座金の底面に対し、直角より小さい角をなすように傾斜した傾斜面になっており、
前記側面部の内面と、前記補強リブの前記傾斜面との間に隙間がある貯湯式給湯機。
A water heater body,
A support leg for supporting and fixing the water heater body on the installation surface;
With
The support leg is
The leg body;
A bottom surface portion provided below the leg main body and having a penetrating portion for penetrating a fixture fixed to the installation surface;
A pair of side surface portions protruding upward from the two sides of the bottom surface portion and facing each other;
A penetrating portion that is disposed between the upper surface of the bottom surface portion and a fastener fastened to the fixture, and that penetrates the fixture, and both ends that are in contact with or close to the inner surface of the side portion. A reinforcing washer having;
A reinforcing rib provided on the reinforcing washer;
Equipped with a,
End surfaces of both ends of the reinforcing rib are inclined surfaces that are inclined so as to form an angle smaller than a right angle with respect to the bottom surface of the reinforcing washer,
The inner surface of the side portions, the gap there Ru water storage type water heater between the inclined surface of the reinforcing ribs.
前記補強座金の前記溝に挿入する部分と、前記補強リブとが、前記固定具を介して、反対側に位置する請求項記載の貯湯式給湯機。 Wherein said portion to be inserted into the groove of the reinforcing washer, and the reinforcing ribs, the through fixtures, hot-water storage type water heater according to claim 1, wherein on the opposite side. 前記補強リブは、前記補強座金の両端まで延びている請求項1乃至3の何れか1項記載の貯湯式給湯機。   The hot water storage type water heater according to any one of claims 1 to 3, wherein the reinforcing rib extends to both ends of the reinforcing washer. 前記補強リブの両端の端面は、前記補強座金の底面に対し、直角より小さい角をなすように傾斜した傾斜面になっている請求項記載の貯湯式給湯機。 The end faces of both ends of the reinforcing ribs, the bottom surface of the reinforcing washer to hot water storage type hot water supply apparatus according to claim 1, characterized in that an inclined surface inclined so as to form a right angle smaller angle. 前記補強座金の前記貫通部の開口面積は、前記底面部の前記貫通部の開口面積より小さい請求項1乃至5の何れか1項記載の貯湯式給湯機。   The hot water storage type hot water heater according to any one of claims 1 to 5, wherein an opening area of the through portion of the reinforcing washer is smaller than an opening area of the through portion of the bottom surface portion.
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