JP2011237061A - Hot water storage device - Google Patents

Hot water storage device Download PDF

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JP2011237061A
JP2011237061A JP2010106896A JP2010106896A JP2011237061A JP 2011237061 A JP2011237061 A JP 2011237061A JP 2010106896 A JP2010106896 A JP 2010106896A JP 2010106896 A JP2010106896 A JP 2010106896A JP 2011237061 A JP2011237061 A JP 2011237061A
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tank
hot water
nut
water storage
fixing
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JP2010106896A
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JP5394312B2 (en
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Yuji Jinbo
祐二 神保
Hiroki Shiga
広貴 志賀
Toshiaki Kamimura
敏明 上村
Yasutaka Tanaka
康隆 田中
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Corona Corp
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Corona Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a hot water storage device wherein strength to fix a hot water storage tank to tank fixing legs is enhanced.SOLUTION: In this hot water storage device, the hot water storage tank 2 is fixed by fastening bolts 17 inserted from tank support leg 14 sides supporting the hot water storage tank 2 and nuts 18 installed to the tank fixing legs 15 fixing the hot water storage tank 2. The nut 18 consists of a washer faced nut 18 including a cylindrical nut part 24 and a seat part 25 having a diameter larger than the nut part 24. The tank fixing leg 15 has a tank fixing face 19 formed with a bolt insertion hole 22 through which the bolt 17 is inserted in an upper part thereof. Beads 28 opposed such that the beads 28 sandwich at least the bolt insertion hole 22 are formed in the rear face of the tank fixing face 19 in such a state that the beads 28 are projected downward, the washer faced nut 18 is disposed inside the beads 28 such that the seat part 25 side is abutted on the rear face of the tank fixing face 19, and the washer faced nut 18 is pinched and fixed by crushing the beads 28 to install the washer faced nut 18 to the tank fixing legs 15.

Description

この発明は、湯水を貯湯する貯湯タンクを有する貯湯装置において、貯湯タンクを固定すると共に、設置面に固定されるタンク固定脚の構造に関するものである。   The present invention relates to a structure of a tank fixing leg that fixes a hot water storage tank and is fixed to an installation surface in a hot water storage apparatus having a hot water storage tank for storing hot water.

従来この種の貯湯装置においては、特許文献１に開示されたものがあり、これを図８〜１１に基づいて説明する。
１０１は貯湯タンクユニット、１０２は貯湯タンクユニット１０１内部に設けられ湯水を貯湯する貯湯タンク、１０３は貯湯タンクユニット１０１の筐体を構成する底板、１０４は貯湯タンク１０２を複数箇所で支持し底板１０３に固定するタンク支持脚、１０５は底板１０３の下部であってタンク支持脚１０４に対応する位置に複数設けられ、その上部で貯湯タンク１０２を固定すると共に、その底部で地面等の設置面と固定されるタンク固定脚である。前記タンク支持脚１０４と前記タンク固定脚１０５とは、タンク支持脚１０４の下面とタンク固定脚１０５の上面との間に底板１０３を挟んで、ボルト１０６と圧入ナット１０７で締結されているものである。 Conventionally, in this kind of hot water storage apparatus, there exist some which were disclosed by patent document 1, and this is demonstrated based on FIGS.
Reference numeral 101 denotes a hot water storage tank unit, 102 denotes a hot water storage tank provided in the hot water storage tank unit 101 for storing hot water, 103 denotes a bottom plate constituting the casing of the hot water storage tank unit 101, and 104 denotes a bottom plate 103 that supports the hot water storage tank 102 at a plurality of locations. A plurality of tank support legs 105 are provided at positions corresponding to the tank support legs 104 at the bottom of the bottom plate 103, and the hot water storage tank 102 is fixed at the top of the tank support legs and at the bottom thereof is fixed to the installation surface such as the ground Tank fixed leg. The tank support leg 104 and the tank fixing leg 105 are fastened by a bolt 106 and a press-fit nut 107 with a bottom plate 103 sandwiched between a lower surface of the tank support leg 104 and an upper surface of the tank fixing leg 105. is there.

ここで、タンク固定脚１０５及び圧入ナット１０７は、屋外設置に対応する耐食性確保のために各々表面処理が施されており、図１０に示すように、圧入ナット１０７はタンク固定脚１０５上部に設けられたボルト挿通穴１０８に対して、表面処理を傷めないよう溶接加工はせずに圧入によって組付けられていた。   Here, the tank fixing leg 105 and the press-fitting nut 107 are each subjected to surface treatment to ensure corrosion resistance corresponding to outdoor installation, and the press-fitting nut 107 is provided on the upper part of the tank fixing leg 105 as shown in FIG. The bolt insertion hole 108 was assembled by press fitting without performing welding so as not to damage the surface treatment.

特開２００４−２９３９６９号公報JP 2004-293969 A

ところで、この従来のものは、図１１に示すように、圧入ナット１０７が固定される面に対して、圧入ナット１０７の接する座面が小さく、鉛直方向の力に対して圧入ナット１０７が抜けやすく、また回転方向に対しても回りやすいものであり、強度面を向上させる上で未だ改善の余地があった。   By the way, as shown in FIG. 11, this conventional one has a smaller seating surface in contact with the press-fit nut 107 with respect to the surface to which the press-fit nut 107 is fixed, and the press-fit nut 107 is easily pulled out with respect to the force in the vertical direction. Also, it is easy to rotate in the rotation direction, and there is still room for improvement in improving the strength.

この発明は上記課題を解決するために、特に請求項１ではその構成を、湯水を貯湯する貯湯タンクと、該貯湯タンクを支持する複数のタンク支持脚と、該タンク支持脚の下部であって前記タンク支持脚に対応する位置に複数設けられ前記貯湯タンクを固定するタンク固定脚とを備え、前記タンク支持脚側から挿通するボルトと、前記タンク固定脚に組付けられたナットとで締結することにより前記貯湯タンクを固定する貯湯装置において、前記ナットは、円筒状のナット部と、前記ナット部よりも大径の座部とを備えた座付ナットで構成し、前記タンク固定脚は、その上部に前記貯湯タンクを固定し前記ボルトを挿通するためのボルト挿通穴が形成されたタンク固定面を有し、該タンク固定面の裏面には、少なくとも前記ボルト挿通穴を挟むように対面したビードを下方に突設して形成し、このビードの内側であって、前記ボルト挿通穴に対応する位置に前記座部側を前記タンク固定面の裏面に当接させるように前記座付ナットを配置して、前記ビードを押し潰して前記座付ナットを挟み込んで固定し、前記座付ナットを前記タンク固定脚に組付けたものとした。   In order to solve the above-mentioned problem, the present invention is particularly configured in claim 1 as a hot water storage tank for storing hot water, a plurality of tank support legs for supporting the hot water storage tank, and a lower part of the tank support legs. A plurality of tank fixing legs which are provided at positions corresponding to the tank supporting legs and fix the hot water storage tank, and are fastened by bolts inserted from the tank supporting leg side and nuts assembled to the tank fixing legs. In the hot water storage device for fixing the hot water storage tank, the nut is constituted by a nut with a seat having a cylindrical nut portion and a seat portion having a diameter larger than the nut portion, and the tank fixing leg is It has a tank fixing surface in which the hot water storage tank is fixed and a bolt insertion hole for inserting the bolt is formed on the upper part, and at least the bolt insertion hole is sandwiched on the back surface of the tank fixing surface. A bead facing the bottom is formed by projecting downward, and the seat is disposed inside the bead so as to abut the back of the tank fixing surface at a position corresponding to the bolt insertion hole. A nut with a seat was arranged, the bead was crushed and the seated nut was sandwiched and fixed, and the seated nut was assembled to the tank fixing leg.

また、請求項２では、前記ビードは、前記座付ナットに接触する側が肉厚になるように押し潰すものとした。   According to a second aspect of the present invention, the bead is crushed so that the side in contact with the seated nut is thick.

また、請求項３では、前記座部は、その外周に直線形状の少なくとも１対の直線部を有し、前記ビードは前記直線部を挟み込んで固定するものとした。   According to a third aspect of the present invention, the seat portion has at least one pair of linear portions on the outer periphery thereof, and the bead sandwiches and fixes the linear portion.

この発明の請求項１によれば、タンク固定脚に組付けるナットとして座付ナットを用いて、ビードを押し潰して座付ナットを固定したことで、タンク固定脚のタンク固定面の裏面に密着する座面が大きく、抜けに対する強度を増加させることができ、タンク固定脚に固定される貯湯タンクの地震等による揺れに対する安全性及び安定性を向上させることができるものである。   According to claim 1 of the present invention, a seated nut is used as a nut to be assembled to the tank fixing leg, and the bead is crushed and the seated nut is fixed, so that the tank fixing leg is in close contact with the back surface of the tank fixing surface. The seating surface is large, the strength against dropping can be increased, and the safety and stability against shaking of the hot water storage tank fixed to the tank fixing leg due to an earthquake or the like can be improved.

また、請求項２によれば、ビードは、座付ナットに接触する側が肉厚になるように押し潰したことで、ビードのより多くの面を座付ナットに密着させることができ、より強固に座付ナットを固定でき、強度を増加させることができるものである。   According to claim 2, the bead is crushed so that the side contacting the seated nut is thick, so that more surfaces of the bead can be brought into close contact with the seated nut, and the bead is stronger. It is possible to fix the nut with a seat to increase the strength.

また、請求項３によれば、座部は、その外周に直線形状の少なくとも１対の直線部を有し、ビードは前記直線部を挟み込んで固定するので、回転方向に対する強度を増加させることができ、より強固に座付ナットを固定することができるものである。   According to the third aspect of the present invention, the seat portion has at least one pair of linear portions on the outer periphery, and the bead sandwiches and fixes the linear portion, so that the strength in the rotation direction can be increased. The seated nut can be fixed more firmly.

この発明の一実施形態の貯湯装置の正面図。The front view of the hot water storage apparatus of one Embodiment of this invention. 同一実施形態の貯湯装置のＢ−Ｂ’断面図。B-B 'sectional drawing of the hot water storage apparatus of the same embodiment. 同一実施形態の要部分解斜視図。The principal part disassembled perspective view of the same embodiment. 同一実施形態の座付ナットを示す図。The figure which shows the nut with a seat of the same embodiment. 同一実施形態のタンク固定脚断面図。The tank fixed leg sectional view of the same embodiment. 同一実施形態のタンク固定脚のＣ−Ｃ’断面図。C-C 'sectional drawing of the tank fixing leg of the same embodiment. 同一実施形態のタンク固定脚に座付ナットを組付ける組付工程図。The assembly | attachment process drawing which assembles a seated nut to the tank fixed leg of the same embodiment. 従来の貯湯装置の正面図。The front view of the conventional hot water storage apparatus. 従来の貯湯装置のＡ−Ａ’断面図。A-A 'sectional drawing of the conventional hot water storage apparatus. 従来の貯湯装置のタンク固定脚断面図。Sectional drawing of the tank fixing leg of the conventional hot water storage apparatus. 従来のタンク固定脚に対する圧入ナットの座面の様子を示す図。The figure which shows the mode of the seat surface of the press-fit nut with respect to the conventional tank fixed leg.

次に、この発明の一実施形態の貯湯装置を図面に基づき説明する。
１は配管及び機能部品が内蔵される貯湯タンクユニット、２は貯湯タンクユニット１内部に設けられ湯水を貯湯する貯湯タンク、３は貯湯タンク２の上部に接続された出湯管、４は貯湯タンク２の下部に接続された給水管である。 Next, a hot water storage apparatus according to an embodiment of the present invention will be described with reference to the drawings.
1 is a hot water storage tank unit in which piping and functional parts are built, 2 is a hot water storage tank provided in the hot water storage tank unit 1 for storing hot water, 3 is a hot water pipe connected to the upper part of the hot water storage tank 2, and 4 is a hot water storage tank 2 It is a water supply pipe connected to the lower part of.

前記貯湯タンクユニット１のユニット筐体５は、前面板６と、背面板７と、左右の側面板（図示せず）と、天板８と、底板９とから構成され、底板９よりも器具本体前面側の貯湯タンク２の頂部と底部の間の高さに位置に接続口取付板１０が設けられ、接続口取付板１０の下方を器具内側に後退させて段差凹み部１１として外部配管を接続する空間とし、その上部がオーバーハングして前面板６および左右の側面板の突出部分に囲まれた各機能部品および配管を収納する空間としているものである。   A unit housing 5 of the hot water storage tank unit 1 is composed of a front plate 6, a back plate 7, left and right side plates (not shown), a top plate 8, and a bottom plate 9. A connection port mounting plate 10 is provided at a height between the top and bottom of the hot water storage tank 2 on the front side of the main body, and the lower side of the connection port mounting plate 10 is moved backward to the inside of the appliance to provide external piping as a step recess 11. It is a space to be connected, and the upper portion thereof is overhanging and is a space for storing each functional component and piping surrounded by the front plate 6 and the protruding portions of the left and right side plates.

前記接続口取付板１０には、内部配管と外部配管とを各々接続する複数の継手１２が設けられて配管接続部１３を構成しているものである。この複数の継手１２を介して器具内部の給水管４や給湯管（図示せず）、湯張り管（図示せず）等を器具外部の配管と接続するようにしているものである。   The connection port mounting plate 10 is provided with a plurality of joints 12 for connecting an internal pipe and an external pipe to form a pipe connection portion 13. A water supply pipe 4, a hot water supply pipe (not shown), a hot water filling pipe (not shown), etc. inside the appliance are connected to piping outside the appliance via the plurality of joints 12.

１４は貯湯タンク２の底部外周に配置され、貯湯タンク２を複数箇所で支持し底板９に固定するタンク支持脚、１５は底板９の下部であってタンク支持脚１４に対応する位置に複数設けられ、貯湯タンク２を固定するタンク固定脚であり、タンク支持脚１４とタンク固定脚１５とは、タンク支持脚１４の下面とタンク固定脚１５の上面との間に底板９を挟んで、タンク支持脚１４下部に座金１６を配置し、タンク支持脚１４側から挿通するボルト１７とタンク固定脚１５に組付けられたナット１８とで締結されるものである。   14 is disposed on the outer periphery of the bottom of the hot water storage tank 2, and is provided with a tank support leg that supports the hot water storage tank 2 at a plurality of locations and is fixed to the bottom plate 9, and 15 is provided at a position below the bottom plate 9 and corresponding to the tank support leg 14. The tank supporting leg 14 and the tank fixing leg 15 are sandwiched between the bottom surface of the tank supporting leg 14 and the upper surface of the tank fixing leg 15 so as to fix the tank. A washer 16 is disposed under the support leg 14 and is fastened by a bolt 17 inserted from the tank support leg 14 side and a nut 18 assembled to the tank fixing leg 15.

前記タンク固定脚１５は、その上部で貯湯タンク２を固定するタンク固定面１９と、その底部でアンカーボルト（図示せず）によって地面等の設置面と固定される設置固定面２０と、タンク固定面１９と設置固定面２０とを繋ぐ脚柱面２１とを有し、前記タンク固定面１９には、ボルト１７を挿通するためのボルト挿通穴２２が形成され、前記設置固定面２０には、アンカーボルトを挿通するためのアンカーボルト挿通穴２３が形成されているものである。   The tank fixing leg 15 has a tank fixing surface 19 for fixing the hot water storage tank 2 at an upper portion thereof, an installation fixing surface 20 fixed at a bottom portion thereof by an anchor bolt (not shown) to an installation surface such as the ground, and a tank fixing. The tank fixing surface 19 has a bolt insertion hole 22 through which the bolt 17 is inserted, and the installation fixing surface 20 includes a pedestal surface 21 that connects the surface 19 and the installation fixing surface 20. An anchor bolt insertion hole 23 for inserting the anchor bolt is formed.

ここで、タンク固定脚１５に組付けられるナット１８は、図４に示すように、円筒状のナット部２４と、ナット部２４よりも大径の座部２５とを備えた座付ナットで構成されており、座付ナット１８の内部はボルト１７と螺合するためのネジ切り（図示せず）がなされているものである。また、前記座部２５の外周は１対の直線形状の直線部２６と、その直線部２６と隣り合う１対の円弧形状の円弧部２７とを有しているものである。   Here, as shown in FIG. 4, the nut 18 assembled to the tank fixing leg 15 is constituted by a seated nut having a cylindrical nut portion 24 and a seat portion 25 having a diameter larger than that of the nut portion 24. The inside of the seated nut 18 is threaded (not shown) for screwing with the bolt 17. Further, the outer periphery of the seat portion 25 has a pair of linear portions 26 and a pair of circular arc portions 27 adjacent to the linear portions 26.

前記座付ナット１８は、図５に示すように、タンク固定面１９の裏面に組付けられるものであり、タンク固定面１９の裏面には、図５及び図６に示すように、ボルト挿通穴２２から所定間隔をあけて、ボルト挿通穴２２を挟むように対面し、下方に突設した１対の直線状のビード２８が形成されると共に、ボルト挿通穴２２から所定間隔をあけて、ボルト挿通穴２２を挟むように対面し下方に突設した座付ナット１８位置決め用の１対の突起２９が形成されるものである。   As shown in FIG. 5, the seat nut 18 is assembled to the back surface of the tank fixing surface 19, and a bolt insertion hole is formed on the back surface of the tank fixing surface 19 as shown in FIGS. 5 and 6. A pair of linear beads 28 are formed so as to face each other and sandwich the bolt insertion hole 22 with a predetermined interval from the bolt 22 and project downward, and at a predetermined interval from the bolt insertion hole 22, the bolt A pair of projections 29 for positioning the seated nut 18 facing the insertion hole 22 and projecting downward are formed.

前記ビード２８及び突起２９は、座付ナット１８を組付ける前に形成されるものであり、座付ナット１８をボルト挿通穴２２に対応した位置に配置した座付ナット１８の組付けを想定した場合に、前記ビード２８は、座付ナット１８の座部２５の直線部２６の外方で、直線部２６と接する位置または直線部２６の直近に形成され、また、前記突起２９は、座付ナット１８の座部２５の円弧部２７の外方で、円弧部２７と接する位置または円弧部２７の直近に形成されるもので、ビード２８及び突起２９は、座付ナット１８の四方を囲うようにタンク固定面１９の裏面に形成され、ボルト挿通穴２２に対する座付ナット１８の位置決めが簡易に行われるものである。   The bead 28 and the protrusion 29 are formed before the seated nut 18 is assembled, and it is assumed that the seated nut 18 is installed at a position corresponding to the bolt insertion hole 22. In this case, the bead 28 is formed outside the straight portion 26 of the seat portion 25 of the seated nut 18, at a position in contact with the straight portion 26 or in the immediate vicinity of the straight portion 26. It is formed outside the arc portion 27 of the seat portion 25 of the nut 18, at a position in contact with the arc portion 27 or in the immediate vicinity of the arc portion 27, and the bead 28 and the projection 29 surround the four sides of the seated nut 18. In addition, it is formed on the rear surface of the tank fixing surface 19 so that the seated nut 18 can be easily positioned with respect to the bolt insertion hole 22.

次に、座付ナット１８をタンク固定脚１５に組付ける工程を図７に基づいて説明すると、まず、図７（ア）に示すように、タンク固定面１９の裏面に、ボルト挿通穴２２から所定の間隔をあけて、ボルト挿通穴２２を挟むように対面し、座付ナット１８を組付ける側に突設した１対の直線状のビード２８を形成すると共に、図示されていないが、ボルト挿通穴２２から所定の間隔をあけて、ボルト挿通穴２２を挟むように対面し、座付ナット１８を組付ける側に突設した座付ナット１８位置決め用の１対の突起２９を形成し、ビード２８及び突起２９の内方にナット受け部３０を形成する。   Next, the process of assembling the seated nut 18 to the tank fixing leg 15 will be described with reference to FIG. 7. First, as shown in FIG. A pair of linear beads 28 projecting from the side where the seat nut 18 is assembled are formed so as to face each other with the bolt insertion hole 22 interposed therebetween, and a bolt is not shown. A pair of protrusions 29 for positioning the seated nut 18 are formed so as to face the bolt insertion hole 22 at a predetermined interval from the insertion hole 22 and project from the side where the seated nut 18 is assembled. A nut receiving portion 30 is formed inside the bead 28 and the protrusion 29.

続いて、図７（イ）に示すように、ナット受け部３０に対して、座部２５側がタンク固定面１９の裏面に当接するように座付ナット１８を配置する。この時、座付ナット１８の直線部２６がビード２８と対面すると共に、座付ナット１８の円弧部２７が突起２９と対面するような向きで、座付ナット１８はナット受け部３０に配置されるものである。   Subsequently, as shown in FIG. 7A, the seated nut 18 is disposed so that the seat portion 25 side comes into contact with the back surface of the tank fixing surface 19 with respect to the nut receiving portion 30. At this time, the straight nut 26 of the seated nut 18 faces the bead 28, and the seated nut 18 is arranged in the nut receiving portion 30 so that the arc portion 27 of the seated nut 18 faces the protrusion 29. Is.

次に、図７（ウ）に示すように、座付ナット１８をタンク固定脚１５に固定する工程について説明するが、ここでは、図面上右半分のみを用いて説明する。前記ナット受け部３０に座付ナット１８を配置した後、タンク固定面１９及びタンク固定面１９の裏面及び座付ナット１８を固定するための型１、型２、型３を図７（ウ）に示すように配置し、型２と型３の間をビード２８に向かって型４をスライドさせていく。   Next, as shown in FIG. 7C, a process of fixing the seated nut 18 to the tank fixing leg 15 will be described. Here, only the right half of the drawing will be described. After the seated nut 18 is disposed in the nut receiving portion 30, the tank fixing surface 19, the back surface of the tank fixing surface 19, and the mold 1, mold 2 and mold 3 for fixing the seated nut 18 are shown in FIG. The mold 4 is slid toward the bead 28 between the mold 2 and the mold 3.

そして、型４によってビード２８を押し潰して座付ナット１８の座部２５の直線部２６に密着させ、ビード２８によって座付ナット１８の座部２５を挟み込んでかしめ固定するものであるが、この時、図７（エ）に示すように、ビード２８は、座付ナット１８の直線部２６に接触する側が肉厚になるように押し潰されるものである。   Then, the bead 28 is crushed by the mold 4 and brought into close contact with the straight portion 26 of the seat portion 25 of the seated nut 18, and the seat portion 25 of the seated nut 18 is sandwiched and fixed by the bead 28. At this time, as shown in FIG. 7D, the bead 28 is crushed so that the side of the seated nut 18 that contacts the linear portion 26 is thick.

最後に、図７（オ）に示すように、型１、型２、型３、型４を外して、タンク固定脚１５への座付ナット１８の組付け工程が完了するものである。   Finally, as shown in FIG. 7E, the mold 1, the mold 2, the mold 3, and the mold 4 are removed, and the process of assembling the seated nut 18 to the tank fixing leg 15 is completed.

以上説明した組付け工程において、タンク固定脚１５に組付けるナットとして座付ナット１８を用いて、タンク固定面１９の裏面のボルト挿通穴２２に対応する位置に配置した座付ナット１８を、ビード２８を押し潰してかしめ固定したことで、図７（オ）に示すように、タンク固定脚１５のタンク固定面１９の裏面に密着する座面が大きく、座付ナット１８の抜けに対する強度を増加させることができ、さらに、ビード２８は座部２５の直線部２６を挟み込んでかしめ固定するので、座付ナット１８の回転方向に対する強度を増加させることができ、より強固に座付ナット１８を固定することができ、タンク固定脚１５に載置固定される貯湯タンクユニット１や貯湯タンク２の地震等による揺れに対する安全性及び安定性を向上させることができるものである。   In the assembly process described above, a seat nut 18 is used as a nut to be assembled to the tank fixing leg 15, and the seat nut 18 disposed at a position corresponding to the bolt insertion hole 22 on the back surface of the tank fixing surface 19 is beaded. 7 is crushed and fixed by caulking, as shown in FIG. 7 (e), the seating surface closely contacting the back surface of the tank fixing surface 19 of the tank fixing leg 15 is large, and the strength against the removal of the seated nut 18 is increased. Furthermore, since the bead 28 clamps and fixes the straight portion 26 of the seat portion 25, the strength of the seated nut 18 in the rotational direction can be increased, and the seated nut 18 is more firmly fixed. To improve the safety and stability of the hot water storage tank unit 1 and the hot water storage tank 2 mounted and fixed on the tank fixing leg 15 against shaking due to an earthquake, etc. It is those that can be.

また、図７（エ）、（オ）に示すように、ビード２８を座付ナット１８の直線部２６に接触する側が肉厚になるように押し潰したことで、ビード２８のより多くの面を座付ナット１８の座部２５に密着させることができ、より強固に座付ナット１８を固定でき、強度を増加させることができるものである。   Further, as shown in FIGS. 7D and 7E, more surfaces of the bead 28 are obtained by crushing the bead 28 so that the side contacting the linear portion 26 of the seated nut 18 becomes thicker. Can be brought into close contact with the seat portion 25 of the seated nut 18, the seated nut 18 can be more firmly fixed, and the strength can be increased.

また、座付ナット１８は、従来採用していた圧入ナットに比べて、比較的安価に購入することができるので、コストを抑えることができ経済的である。   Further, the seat nut 18 can be purchased at a relatively low cost as compared with a press-fit nut that has been conventionally used, so that the cost can be suppressed and it is economical.

なお、本発明は先に説明した一実施形態に限定されるものでなく、本実施形態では、ビード２８は、ボルト挿通穴２２から所定間隔あけて、ボルト挿通穴２２を挟むように対面して１対設けられているが、ビード２８は少なくともボルト挿通穴２２を挟むように対面していればよいものであり、ビード２８はボルト挿通穴２２から所定間隔あけた外周の全周にかけてボルト挿通穴２２を囲むように設けられていてもよく、また、ビード２８は２対またはそれ以上設けられていてもよく、対をなす場合は少なくとも１対以上あればよいものである。   The present invention is not limited to the embodiment described above. In this embodiment, the beads 28 face each other so as to sandwich the bolt insertion hole 22 at a predetermined interval from the bolt insertion hole 22. Although one pair is provided, the beads 28 only need to face each other so as to sandwich at least the bolt insertion hole 22, and the bead 28 extends from the bolt insertion hole 22 to the entire circumference of the outer periphery at a predetermined interval. 22 may be provided so as to surround 22, and two or more beads 28 may be provided, and when paired, at least one pair is sufficient.

２ 貯湯タンク
１４ タンク支持脚
１５ タンク固定脚
１７ ボルト
１８ 座付ナット
１９ タンク固定面
２２ ボルト挿通穴
２４ ナット部
２５ 座部
２６ 直線部
２８ ビード 2 Hot water storage tank 14 Tank support leg 15 Tank fixing leg 17 Bolt 18 Nut 19 with seat 19 Tank fixing surface 22 Bolt insertion hole 24 Nut part 25 Seat part 26 Straight part 28 Bead

Claims (3)

湯水を貯湯する貯湯タンクと、該貯湯タンクを支持する複数のタンク支持脚と、該タンク支持脚の下部であって前記タンク支持脚に対応する位置に複数設けられ前記貯湯タンクを固定するタンク固定脚とを備え、前記タンク支持脚側から挿通するボルトと、前記タンク固定脚に組付けられたナットとで締結することにより前記貯湯タンクを固定する貯湯装置において、前記ナットは、円筒状のナット部と、前記ナット部よりも大径の座部とを備えた座付ナットで構成し、前記タンク固定脚は、その上部に前記貯湯タンクを固定し前記ボルトを挿通するためのボルト挿通穴が形成されたタンク固定面を有し、該タンク固定面の裏面には、少なくとも前記ボルト挿通穴を挟むように対面したビードを下方に突設して形成し、このビードの内側であって、前記ボルト挿通穴に対応する位置に前記座部側を前記タンク固定面の裏面に当接させるように前記座付ナットを配置して、前記ビードを押し潰して前記座付ナットを挟み込んで固定し、前記座付ナットを前記タンク固定脚に組付けたことを特徴とする貯湯装置。   A hot water storage tank for storing hot water, a plurality of tank support legs for supporting the hot water storage tank, and a tank fixing for fixing the hot water storage tank provided at a plurality of positions below the tank support legs and corresponding to the tank support legs A hot water storage device for fixing the hot water storage tank by fastening with a bolt inserted from the tank support leg side and a nut assembled to the tank fixing leg, wherein the nut is a cylindrical nut And a nut with a seat having a diameter larger than that of the nut portion, and the tank fixing leg has a bolt insertion hole for fixing the hot water storage tank and inserting the bolt at an upper portion thereof. A tank fixing surface is formed, and a bead facing at least to sandwich the bolt insertion hole is formed on the back surface of the tank fixing surface so as to protrude downward. Then, the seated nut is disposed so that the seat side comes into contact with the back surface of the tank fixing surface at a position corresponding to the bolt insertion hole, and the bead is crushed to sandwich the seated nut. A hot water storage device, wherein the seated nut is fixed to the tank fixing leg. 前記ビードは、前記座付ナットに接触する側が肉厚になるように押し潰すようにしたことを特徴とする請求項１記載の貯湯装置。   The hot water storage device according to claim 1, wherein the bead is crushed so that a side in contact with the seated nut is thick. 前記座部は、その外周に直線形状の少なくとも１対の直線部を有し、前記ビードは前記直線部を挟み込んで固定するようにしたことを特徴とする請求項１または２記載の貯湯装置。   The hot water storage device according to claim 1 or 2, wherein the seat portion has at least one pair of straight linear portions on an outer periphery thereof, and the bead sandwiches and fixes the linear portion.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013142528A (en) * 2012-01-13 2013-07-22 Hitachi Appliances Inc Water heater
JP2013167369A (en) * 2012-02-14 2013-08-29 Corona Corp Apparatus for installing device
JP2017146076A (en) * 2016-02-19 2017-08-24 株式会社コロナ Hot water storage device
JP2017146078A (en) * 2016-02-19 2017-08-24 株式会社コロナ Hot water storage device
JP2017146079A (en) * 2016-02-19 2017-08-24 株式会社コロナ Hot water storage device

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JPS4714547Y1 (en) * 1968-06-10 1972-05-25
JPS55121157U (en) * 1979-02-20 1980-08-28
JPS55153537U (en) * 1979-04-20 1980-11-05
JPS5634244U (en) * 1979-09-21 1981-04-03

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4714547Y1 (en) * 1968-06-10 1972-05-25
JPS55121157U (en) * 1979-02-20 1980-08-28
JPS55153537U (en) * 1979-04-20 1980-11-05
JPS5634244U (en) * 1979-09-21 1981-04-03

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013142528A (en) * 2012-01-13 2013-07-22 Hitachi Appliances Inc Water heater
JP2013167369A (en) * 2012-02-14 2013-08-29 Corona Corp Apparatus for installing device
JP2017146076A (en) * 2016-02-19 2017-08-24 株式会社コロナ Hot water storage device
JP2017146078A (en) * 2016-02-19 2017-08-24 株式会社コロナ Hot water storage device
JP2017146079A (en) * 2016-02-19 2017-08-24 株式会社コロナ Hot water storage device

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