JP6267915B2 - Fixing structure and hot water supply device - Google Patents
Fixing structure and hot water supply device Download PDFInfo
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- JP6267915B2 JP6267915B2 JP2013209491A JP2013209491A JP6267915B2 JP 6267915 B2 JP6267915 B2 JP 6267915B2 JP 2013209491 A JP2013209491 A JP 2013209491A JP 2013209491 A JP2013209491 A JP 2013209491A JP 6267915 B2 JP6267915 B2 JP 6267915B2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 51
- 230000002265 prevention Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Description
本発明は、固定構造及び給湯装置に係り、更に詳しくは、被固定物を固定対象に固定する固定構造及び該固定構造によりカバーが給湯装置本体から延設される配管を覆う箱体に固定される給湯装置に関する。 The present invention relates to a fixing structure and a hot water supply device, and more specifically, a fixing structure for fixing an object to be fixed to a fixing target, and a cover that is fixed to a box covering a pipe extending from the hot water supply device main body. The present invention relates to a water heater.
給湯装置本体の下端から延設される複数の配管類を隠すために、給湯装置の下方に化粧カバー（箱体）が設けられる。化粧カバーは、例えば、化粧カバーの両側面とこれらを固定する複数の梁とから構成されるケーシングと、ケーシングの前面を覆うカバーと、から構成される。給湯装置が特に屋外に設置される場合、風等による振動を継続的に受けることでカバーが化粧カバー（ケーシング）から外れ、落下する危険がある。 In order to hide a plurality of pipes extending from the lower end of the water heater main body, a decorative cover (box) is provided below the water heater. A decorative cover is comprised from the casing comprised from the both sides | surfaces of a decorative cover, and the some beam which fixes these, and the cover which covers the front surface of a casing, for example. When the hot water supply device is installed outdoors, there is a risk that the cover may come off from the decorative cover (casing) and fall due to continuous vibration from wind or the like.
そこで、例えば特許文献１に開示される化粧カバーでは、ケーシングの上部に架設された梁（に固設されたブラケット）に上向きに突片が設けられ、その突片をカバーの上部に設けられたスリットに差し入れることでカバーをケーシングに掛止する。また、ケーシングの下部に架設された梁（に固設されたブラケット）にはネジ穴が設けられている。そこで、さらに、そのネジ穴にカバーの下部に設けられた開口を介してネジを螺入することで、カバーがケーシングに固定される。 Thus, for example, in the decorative cover disclosed in Patent Document 1, a protruding piece is provided upward on a beam (a bracket fixed to the beam) installed on the upper part of the casing, and the protruding piece is provided on the upper part of the cover. The cover is hooked on the casing by inserting it into the slit. In addition, a screw hole is provided in a beam (a bracket fixed to the beam) installed in the lower part of the casing. Therefore, the cover is further fixed to the casing by screwing a screw into the screw hole through an opening provided in the lower portion of the cover.
しかし、上述の構成の固定構造では、給湯装置の配管カバーを固定する場合、梁に上向きに設けられた突片が給湯装置全体の意匠的美観を害してしまう。また、一度化粧カバーを組み立ててその上に給湯装置本体を配置すると、カバーが給湯装置本体と干渉するため、ネジによる固定が外れても、化粧カバー（ケーシング）からカバーが外れて落下することはない。しかし、例えば配管類の整備等のためにカバーを外す必要が生じても、給湯装置本体を退避しない限り外すことができない場合も考えられ、不便を強いられてしまう。また、配管類の整備等を実施する工事業者は、ネジを外してもカバーを外すことができず、途惑ってしまい不必要に工事時間を費やしてしまうことも考えられる。 However, in the fixing structure having the above-described configuration, when the piping cover of the hot water supply apparatus is fixed, the projecting piece provided on the beam upwards impairs the design aesthetics of the entire hot water supply apparatus. Also, once the decorative cover is assembled and the hot water supply body is placed on the cover, the cover interferes with the hot water supply body, so that even if the screw is removed, the cover will be detached from the decorative cover (casing) and will not fall. Absent. However, even if it is necessary to remove the cover for maintenance of piping, for example, it may be impossible to remove the hot water supply device main body without retreating, which causes inconvenience. In addition, it is conceivable that a construction contractor who performs maintenance of piping or the like cannot remove the cover even if the screws are removed, which may be disturbed and unnecessarily spend construction time.
上記の問題に対応するため、突片を短いもの（例えばカバーの厚みと同じ）とすることが考えられる。しかし、このようにすると、風等による振動によってカバーが突片を外れてしまう。ネジとして脱落防止ネジを用いても、ネジが中心軸方向にネジ自身の長さを超えて移動してしまうことがあり、カバー全体が落下してしまう。 In order to cope with the above problem, it is conceivable to make the protruding piece short (for example, the same as the thickness of the cover). However, if it does in this way, a cover will remove | deviate a protrusion piece by the vibration by a wind etc. Even if a drop-off prevention screw is used as the screw, the screw may move beyond the length of the screw itself in the central axis direction, and the entire cover falls.
また、例えば特許文献２に開示される固定構造は、カバーに固定構造を設けずに取付具を用いるものであり、取付具の一端を固定対象に掛止し他端をネジによって係止するものである。 In addition, for example, the fixing structure disclosed in Patent Document 2 uses a fixture without providing a fixing structure on the cover, and hooks one end of the fixture to a fixed object and locks the other end with a screw. It is.
しかし、上述の構成の固定構造では、掛止部分を安定させるための構造を有さず、風等による振動の小さな取付具に使用される構造であって風等による振動の大きなカバーに使用できるものではない。 However, the fixing structure having the above-described structure does not have a structure for stabilizing the latching portion, and is a structure used for a fixture with small vibration due to wind or the like, and can be used for a cover with large vibration due to wind or the like. It is not a thing.
本発明は、カバーの固定を容易に外すことができるとともにカバーが化粧カバー（箱体）から落下することがない固定構造及びこの固定構造を利用して安全に使用することのできる給湯装置を提供することを課題とする。 The present invention provides a fixing structure in which the cover can be easily removed and the cover does not fall from the decorative cover (box), and a hot water supply device that can be used safely using this fixing structure. The task is to do.
本発明は、ネジを用いて被固定物を固定対象に固定する固定構造であって、前記被固定物は、第１開口が設けられた第１面と第２開口が設けられた第２面とを有し、前記第１面及び前記第２面は互いに交差し、前記固定対象には、前記第１開口に対向する第１ネジ穴と前記第２開口に対向する第２ネジ穴とが設けられ、前記第１開口を介して前記ネジを前記第１ネジ穴に螺入し、前記第２開口を介して前記ネジを前記第２ネジ穴に螺入することを特徴とする、固定構造である。 The present invention is a fixing structure for fixing an object to be fixed to a fixing object using a screw, and the object to be fixed includes a first surface provided with a first opening and a second surface provided with a second opening. The first surface and the second surface intersect with each other, and the fixing target has a first screw hole facing the first opening and a second screw hole facing the second opening. A fixing structure, wherein the screw is screwed into the first screw hole through the first opening, and the screw is screwed into the second screw hole through the second opening. It is.
これによれば、２本のネジによって固定されるので、そのうち１本のネジが外れてしまっても、被固定物が固定対象から離脱することがない。 According to this, since it is fixed by two screws, even if one of the screws is removed, the fixed object will not be detached from the object to be fixed.
また、本発明の固定構造は、前記ネジは、先端側ネジ部と基端側ネジ部との間にネジ穴より径が小さく、その深さよりも長い溝部が形成された軸部を有する脱落防止ネジであることを特徴とする。 In the fixing structure of the present invention, the screw has a shaft portion having a shaft portion in which a groove portion having a diameter smaller than the screw hole and longer than the depth is formed between the distal end side screw portion and the proximal end side screw portion. It is a screw.
これによれば、ネジが外れてしまう蓋然性が低くなり、安定した固定が実現される。 According to this, the probability that the screw will come off is reduced, and stable fixation is realized.
また、本発明の固定構造は、前記ネジの前記溝部が前記第１ネジ穴又は前記第２ネジ穴に係合した際に前記第１のネジ又は前記第２のネジが前記第１のネジ穴の中心軸又は前記第２ネジ穴の中心軸に対して傾斜可能な最大角度をθとするとき、前記第１のネジ穴の前記固定対象の表面上において前記第１面がθだけ傾いた場合の前記第２開口の前記第２のネジ穴からの乖離長さＬ１と、前記第２のネジ穴の前記固定対象の表面上において前記第２面がθだけ傾いた場合の前記第１開口の前記第１のネジ穴からの乖離長さＬ２との、いずれもが、前記ネジの前記先端端側ネジ部と前記溝部の長さの和（Ａ、Ａ’）よりも短いこと（Ｌ１＜Ａ、Ｌ２＜Ａ’）を特徴とする。 In the fixing structure of the present invention, when the groove portion of the screw is engaged with the first screw hole or the second screw hole, the first screw or the second screw is the first screw hole. When the maximum angle that can be tilted with respect to the center axis of the second screw hole or the center axis of the second screw hole is θ, the first surface is inclined by θ on the surface of the fixed object of the first screw hole The length L1 of the second opening from the second screw hole and the first opening when the second surface is inclined by θ on the surface of the second screw hole to be fixed. Both the deviation length L2 from the first screw hole is shorter than the sum (A, A ′) of the lengths of the tip end side screw portion and the groove portion of the screw (L1 <A , L2 <A ′).
これによれば、第１ネジ穴に入れられたネジの基端側ネジ部が抜け、その溝部が第１ネジ穴に係合することでそのネジを軸に被固定物が固定対象に対して傾斜しても、第２面の開口近傍は第２ネジ穴からその中心軸に平行な方向に基端側ネジ部と溝部の長さの和（Ａ）以上の距離離間することはない。それにより、第２ネジ穴に入れられたネジの先端側ネジ部が第２ネジ穴に入り、引き抜かれることなく、被固定物が固定対象に固定される。 According to this, the base end side screw portion of the screw put in the first screw hole is pulled out, and the groove portion engages with the first screw hole, so that the object to be fixed is fixed to the object to be fixed around the screw. Even if it is inclined, the vicinity of the opening of the second surface is not separated from the second screw hole by a distance equal to or greater than the sum (A) of the lengths of the proximal-side screw portion and the groove portion in a direction parallel to the central axis. Thereby, the to-be-fixed object is fixed to the object to be fixed without the tip side screw portion of the screw put in the second screw hole entering the second screw hole and being pulled out.
また、本発明の固定構造は、前記第１面及び前記第２面に前記第１開口及び前記第２開口がそれぞれ複数設けられ、前記固定対象には、前記複数の第１開口及び第２開口に対応して、複数の第１ネジ穴及び第２ネジ穴が設けられることを特徴とする。 In the fixing structure of the present invention, the first surface and the second surface are each provided with a plurality of the first openings and the second openings, and the object to be fixed is the plurality of first openings and second openings. Corresponding to the above, a plurality of first screw holes and second screw holes are provided.
これによれば、上記の固定構造を複数有することができ、より安定した固定が実現される。 According to this, a plurality of the above fixing structures can be provided, and more stable fixing is realized.
また、本発明は、給湯装置本体と、前記固定対象であり、前記給湯装置本体から延設される配管を覆う箱体と、前記被固定物であり、前記箱体の少なくとも一部に設けられた開口をふさぐカバーとを備え、上記の固定構造により、前記カバーが前記箱体に固定されることを特徴とする、給湯装置である。 Further, the present invention is a hot water supply device main body, the box to be fixed, a box that covers a pipe extending from the hot water supply device main body, and the object to be fixed, and is provided in at least a part of the box. And a cover for closing the opening, wherein the cover is fixed to the box by the fixing structure.
これによれば、カバーが箱体から落下することがなく、安全に使用することができる。 According to this, the cover does not fall from the box and can be used safely.
また、本発明の給湯装置は、前記箱体は、前記給湯装置本体の下に配置され、前記給湯装置本体の下面の端部に前記箱体の上面との間に空隙を有する箇所があり、前記固定対象である前記箱体は、前記空隙に対向する箇所に前記第１開口又は前記第２開口を有することを特徴とする。 Further, in the hot water supply apparatus of the present invention, the box is disposed under the hot water supply apparatus main body, and there is a portion having a gap between the upper surface of the box body at an end of the lower surface of the hot water supply apparatus main body, The box body to be fixed has the first opening or the second opening at a location facing the gap.
これによれば、ネジの頭部を給湯装置本体と箱体の間に配することで、給湯装置本体を移動せずにネジの操作を行うことができる。また、ネジの頭部によって意匠的外観が損なわれることが少ない。 According to this, by disposing the head of the screw between the hot water supply device main body and the box, the screw can be operated without moving the hot water supply device main body. Further, the appearance of the design is rarely damaged by the head of the screw.
本発明の固定構造によると、被固定物の固定対象への固定を容易に外すことができるとともに、第１ネジ穴に入れられたネジの基端側ネジ部が抜け、その溝部が第１ネジ穴に係合することでそのネジを軸に被固定物が固定対象に対して傾斜しても、第２ネジ穴に入れられたネジの先端側ネジ部は第２ネジ穴から引き抜かれることがないため、被固定物が固定対象から外れ、落下することがなく、安全に使用することが可能となる。 According to the fixing structure of the present invention, it is possible to easily remove the object to be fixed to the object to be fixed, and the base end side screw portion of the screw placed in the first screw hole is removed, and the groove portion is the first screw. Even if the object to be fixed is tilted with respect to the object to be fixed with the screw as an axis by engaging with the hole, the tip side screw portion of the screw put in the second screw hole may be pulled out from the second screw hole. Therefore, the object to be fixed does not fall out of the object to be fixed and does not fall, and can be used safely.
また、本発明の給湯装置によると、本発明の固定構造を利用することでカバーが箱体から落下することがなく、安全に使用することが可能となる。 Moreover, according to the hot water supply device of the present invention, the cover can be used safely without being dropped from the box by using the fixing structure of the present invention.
以下、本発明の一実施形態を、図１〜図４を用いて説明する。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
図１に、本実施形態に係る給湯装置１を示す。給湯装置１は、給湯装置本体１０と、化粧カバー２０と、を備える。 FIG. 1 shows a hot water supply apparatus 1 according to this embodiment. The hot water supply device 1 includes a hot water supply device main body 10 and a decorative cover 20.
給湯装置本体１０は、例えば、家屋外の地面Ｆ上に脚部２３を介して配置され、その筐体１１の上面がＬ字状の固定具１３を用いて家屋等の壁面Ｗに固定される。ここで、給湯装置本体１０の下端から湯水等を屋内に供給するための配管類１５（図１において点線を用いて示す）が、壁面Ｗを介して屋内に延設されている。 The hot water supply device main body 10 is, for example, disposed on the ground F outside the house via the legs 23, and the upper surface of the housing 11 is fixed to a wall surface W of a house or the like using an L-shaped fixture 13. . Here, piping 15 (shown using dotted lines in FIG. 1) for supplying hot water or the like indoors from the lower end of the hot water supply apparatus body 10 extends indoors through the wall surface W.
図２に、化粧カバー２０の分解斜視図を与える。化粧カバー２０は、ケーシング（本体）２１と、カバー２２と、から構成される。図中、ケーシング（本体）２１とカバー２２は、基準軸Ｌについて分解して示されている。 FIG. 2 is an exploded perspective view of the decorative cover 20. The decorative cover 20 includes a casing (main body) 21 and a cover 22. In the figure, the casing (main body) 21 and the cover 22 are shown disassembled with respect to the reference axis L.
本体２１は、平板状の２つの側面２１ｄと、両端に取付片が設けられた３つの梁２１ａ，２１ｃ，２１ｇと、から構成される。ここで、梁２１ａには、２つのブラケット２１ｅが固設されている。ブラケット２１ｅは、２つのネジ穴２１ｆ，２１ｇがそれぞれ形成された２つの面（ＸＺ面及びＸＹ面）を有し、それぞれの面を−Ｙ方向及び＋Ｚ方向に向けて梁２１ａの上端に固定されている。なお、ネジ穴２１ｆ，２１ｇは、一方が第１のネジ穴であり、他方が第２のネジ穴である。第１のネジ穴と第２のネジ穴とに機能上の相違はなく、ネジ穴２１ｆ，２１ｇのいずれが第１のネジ穴であっても同等である。また、ブラケット２１ｅは梁２１ａの＋Ｚ端を−Ｙ方向、さらに−Ｚ方向に屈曲することで梁２１ａと一体的に形成してもよいし、別部材を梁２１ａに溶接等により固定することで形成してもよい。 The main body 21 includes two flat plate-like side surfaces 21d and three beams 21a, 21c, and 21g having attachment pieces at both ends. Here, two brackets 21e are fixed to the beam 21a. The bracket 21e has two surfaces (XZ surface and XY surface) in which two screw holes 21f and 21g are respectively formed, and is fixed to the upper end of the beam 21a with the respective surfaces facing the −Y direction and the + Z direction. ing. Note that one of the screw holes 21f and 21g is a first screw hole and the other is a second screw hole. There is no functional difference between the first screw hole and the second screw hole, and it is the same regardless of which of the screw holes 21f and 21g is the first screw hole. The bracket 21e may be formed integrally with the beam 21a by bending the + Z end of the beam 21a in the -Y direction and further in the -Z direction, or by fixing another member to the beam 21a by welding or the like. It may be formed.
２つの側面２１ｄはＸ軸方向の一側と他側にそれぞれの内面を対向して配置され、それらの前部上側（−Ｙ，＋Ｚ側）の端部が梁２１ａにより、それらの前部下側（−Ｙ，−Ｚ側）の端部が梁２１ｃにより、それらの後部下側（＋Ｙ，−Ｚ側）の端部が梁２１ｇにより、連結されている。梁２１ａはブラケット２１ｅが固設された一面（ＸＺ面）を前方（−Ｙ方向）に向けて、梁２１ｃ及び梁２１ｇは一面をそれぞれ前方（−Ｙ方向）及び後方（＋Ｙ方向）に向けて、取付片を側面２１ｄの内面に当接し、ネジ、ビス等の固定具を用いて或いは溶接により側面２１ｄに固定されている。なお、梁の数、形状、材質等及び側面２１ｄへの取付方法は、側面２１ｄを支持するのに十分な強度が得られるよう適当に定めることとする。 The two side surfaces 21d are arranged so that the inner surfaces are opposed to one side and the other side in the X-axis direction, and the front upper side (−Y, + Z side) ends of the front side lower side by the beam 21a. The ends on the (−Y, −Z side) are connected by a beam 21c, and the ends on the lower rear side (+ Y, −Z side) are connected by a beam 21g. The beam 21a has one surface (XZ surface) on which the bracket 21e is fixed facing forward (−Y direction), and the beams 21c and 21g have one surface facing forward (−Y direction) and rearward (+ Y direction), respectively. The mounting piece is in contact with the inner surface of the side surface 21d, and is fixed to the side surface 21d using a fixing tool such as a screw or a screw or by welding. Note that the number, shape, material, and the like of the beam and the method of attaching to the side surface 21d are appropriately determined so as to obtain sufficient strength to support the side surface 21d.
本体２１は、図１に示すように、給湯装置本体１０の下（−Ｚ側）に、２つの側面２１ｄの外面が給湯装置本体１０の筐体１１の側面と略面一に、配置される。これにより、給湯装置本体１０の下端から延びる配管類１５が、２つの側面２１ｄの間を上下（Ｚ軸方向）及び前後（Ｙ軸方向）に通って、屋内に向かって配設されることとなる。 As shown in FIG. 1, the main body 21 is disposed under the hot water supply apparatus main body 10 (on the −Z side) so that the outer surfaces of the two side surfaces 21 d are substantially flush with the side surface of the housing 11 of the hot water supply apparatus main body 10. . Thereby, the piping 15 extending from the lower end of the water heater main body 10 is disposed indoors through the two side surfaces 21d vertically (Z-axis direction) and front-back (Y-axis direction). Become.
カバー２２は、前面２２ａと、上面２２ｂ及び下面２２ｃと、フランジ２２ｄと、を含んで形成されている。前面２２ａは、−Ｙ方向に凸状に形成されている。前面２２ａの上端（＋Ｚ端）近傍には、後述するように固定具（ネジ３１）を通すための２つの開口２２ｆが設けられている。上面２２ｂ及び下面２２ｃは、等脚台形状の平板であり、それぞれ前面２２ａの上端及び下端に固設されている。上面２２ｂには、後述するように固定具（ネジ３１）を通すための２つの開口２２ｇが設けられている。フランジ２２ｄは、前面２２ａの±Ｘ端部を＋Ｙ方向に屈曲して形成されている。その下端は、カバー２２を本体２１に固定した際に梁２１ｃと干渉しないように、例えば斜めに形成されている。 The cover 22 includes a front surface 22a, an upper surface 22b and a lower surface 22c, and a flange 22d. The front surface 22a is formed in a convex shape in the -Y direction. In the vicinity of the upper end (+ Z end) of the front surface 22a, two openings 22f for allowing the fixture (screw 31) to pass are provided as will be described later. The upper surface 22b and the lower surface 22c are isosceles trapezoidal flat plates, and are respectively fixed to the upper end and the lower end of the front surface 22a. As will be described later, the upper surface 22b is provided with two openings 22g through which the fixing tool (screw 31) is passed. The flange 22d is formed by bending the ± X end of the front surface 22a in the + Y direction. The lower end is formed, for example, obliquely so as not to interfere with the beam 21c when the cover 22 is fixed to the main body 21.
カバー２２を本体２１に固定して本体２１（側面２１ｄ）の前面の開口を塞いで化粧カバー２０を形成することで、給湯装置本体１０の下端から延びる配管類１５が隠される。 By fixing the cover 22 to the main body 21 and closing the opening on the front surface of the main body 21 (side surface 21d) to form the decorative cover 20, the piping 15 extending from the lower end of the hot water supply apparatus main body 10 is hidden.
カバー２２を本体２１に固定するための固定構造３０について説明する。 A fixing structure 30 for fixing the cover 22 to the main body 21 will be described.
図３に、カバー２２が本体２１に固定された一状態において、固定構造３０を構成するブラケット２１ｅとネジ３１の構成を示す断面図を与える。なお、同様の構成の為、図中、２つのブラケット２１ｅの一方及びこれに設けられたネジ穴２１ｆ，２１ｇに入れられたネジ３１のみを示した。 FIG. 3 is a cross-sectional view showing the configuration of the bracket 21e and the screw 31 constituting the fixing structure 30 in a state where the cover 22 is fixed to the main body 21. For the same configuration, only one of the two brackets 21e and the screw 31 inserted in the screw holes 21f and 21g provided in the bracket 21e are shown in the figure.
ブラケット２１ｅは、先述の通り２つの面（ＸＺ面及びＸＹ面）を有し、それらの一端が接続することでＹＺ面内においてＬ字状の断面を形成する。ネジ穴２１ｆは、カバー２２の前面２２ａに対向するＸＺ面に設けられている。その配設位置は、ＸＺ面とＸＹ面との接続点から下方（−Ｚ方向）に距離δの位置である。ネジ穴２１ｇは、カバー２２の上面２２ｂに対向するＸＹ面に設けられている。その配設位置は、ＸＺ面とＸＹ面との接続点から距離γの位置である。なお、ネジ穴２１ｆ，２１ｇのＸ軸方向に関する配設位置は等しいとする。また、ネジ穴２１ｆ，２１ｇの径及び深さはそれぞれＤ及びＨである。 The bracket 21e has two surfaces (XZ plane and XY plane) as described above, and one end thereof is connected to form an L-shaped cross section in the YZ plane. The screw hole 21 f is provided on the XZ surface facing the front surface 22 a of the cover 22. The arrangement position is a position of a distance δ downward (−Z direction) from the connection point between the XZ plane and the XY plane. The screw hole 21g is provided on the XY surface facing the upper surface 22b of the cover 22. The arrangement position is a position at a distance γ from the connection point between the XZ plane and the XY plane. It is assumed that the screw holes 21f and 21g are disposed at the same position in the X-axis direction. The diameters and depths of the screw holes 21f and 21g are D and H, respectively.
カバー２２の開口２２ｆ，２２ｇは、ブラケット２１ｅに設けられたネジ穴２１ｆ，２１ｇに対向する前面２２ａ及び上面２２ｂ上の位置に設けられている。すなわち、開口２２ｆの配設位置は、前面２２ａ及び上面２２ｂの接続点から下方（−Ｚ方向）に距離δの前面２２ａ上の位置である。開口２２ｇの配設位置は、前面２２ａ及び上面２２ｂの接続点から＋Ｙ方向に距離γの上面２２ｂ上の位置である。なお、開口２２ｆ，２２ｇの径は、ネジ３１のネジ部が挿入可能な大きさである。 The openings 22f and 22g of the cover 22 are provided at positions on the front surface 22a and the upper surface 22b facing the screw holes 21f and 21g provided in the bracket 21e. That is, the arrangement position of the opening 22f is a position on the front surface 22a at a distance δ downward (−Z direction) from the connection point of the front surface 22a and the upper surface 22b. The arrangement position of the opening 22g is a position on the upper surface 22b at a distance γ in the + Y direction from the connection point between the front surface 22a and the upper surface 22b. The diameters of the openings 22f and 22g are large enough to allow the screw portion of the screw 31 to be inserted.
ネジ３１は、頭部と軸部を有し、その軸部には２つのネジ部、すなわち先端側ネジ部３１ａ及び基端側ネジ部３１ｃと、これらの間の溝部３１ｂと、が形成されている。ネジ３１は、脱落防止ネジである。先端側ネジ部３１ａと基端側ネジ部３１ｃには、ネジ穴２１ｆ，２１ｇに螺入可能なネジ溝が形成されている。溝部３１ｂは、その径ｄがネジ穴２１ｆ，２１ｇの径Ｄより小さく（ｄ＜Ｄ）、その長さｈがネジ穴２１ｆ，２１ｇの深さＨより長く（ｈ＞Ｈ）形成されている。 The screw 31 has a head portion and a shaft portion, and two screw portions, that is, a distal end side screw portion 31a and a proximal end side screw portion 31c, and a groove portion 31b therebetween are formed on the shaft portion. Yes. The screw 31 is a drop-off prevention screw. A screw groove that can be screwed into the screw holes 21f and 21g is formed in the distal end side screw portion 31a and the proximal end side screw portion 31c. The groove portion 31b is formed such that its diameter d is smaller than the diameter D of the screw holes 21f and 21g (d <D), and its length h is longer than the depth H of the screw holes 21f and 21g (h> H).
ネジ３１の頭部は、ネジ部に対して十分大きな径を有し、工具を用いることなく手指を用いて回すことでネジ部をネジ穴に螺入することができる。また、工具（プラスドライバ）の先端が係合可能な凹部が形成され、工具を用いてネジ穴に螺入することもできる。 The head of the screw 31 has a sufficiently large diameter with respect to the screw portion, and the screw portion can be screwed into the screw hole by turning with a finger without using a tool. Moreover, the recessed part which the front-end | tip of a tool (plus driver) can engage can be formed, and it can also be screwed into a screw hole using a tool.
ネジ３１を用いてカバー２２をケーシング（本体）２１に固定する際、最初に、本体２１の前面側でカバー２２の±Ｘ端を両手で保持して、カバー２２の上面２２ｂを梁２１ａの２つのブラケット２１ｅ上に掛止する。次に、カバー２２を前後（Ｙ軸方向）及び左右（Ｘ軸方向）にずらして、前面２２ａの開口２２ｆをネジ孔２１ｆ上に、上面２２ｂの開口２２ｇをネジ孔２１ｇ上に位置決めする。最後に、この状態において、ネジ３１を、開口２２ｆを介してネジ穴２１ｆに、開口２２ｇを介してネジ穴２１ｇにそれぞれ入れる。ここで、先端側ネジ部３１ａ及び基端側ネジ部３１ｃの全てをネジ穴２１ｆ，２１ｇに螺入する。これにより、カバー２２が本体２１に固定される。 When fixing the cover 22 to the casing (main body) 21 using the screws 31, first, the ± X end of the cover 22 is held with both hands on the front side of the main body 21, and the upper surface 22b of the cover 22 is set to 2 of the beam 21a. It hooks on one bracket 21e. Next, the cover 22 is shifted back and forth (Y-axis direction) and right and left (X-axis direction) to position the opening 22f of the front surface 22a on the screw hole 21f and the opening 22g of the upper surface 22b on the screw hole 21g. Finally, in this state, the screw 31 is inserted into the screw hole 21f through the opening 22f and into the screw hole 21g through the opening 22g. Here, all of the distal end side screw portion 31a and the proximal end side screw portion 31c are screwed into the screw holes 21f and 21g. Thereby, the cover 22 is fixed to the main body 21.
なお、ネジ３１（先端側ネジ部３１ａ及び基端側ネジ部３１ｃの全て）をネジ穴２１ｆ，２１ｇから外すことで、容易に、カバー２２を本体２１から取り外すことができる。 The cover 22 can be easily removed from the main body 21 by removing the screws 31 (all of the distal end side screw portion 31a and the proximal end side screw portion 31c) from the screw holes 21f and 21g.
上述の構成のネジ３１において、先端側ネジ部３１ａは、ネジ全体がネジ穴２１ｆ，２１ｇから引き抜かれないためのストッパの役割を果たす。カバー２２が継続的に振動を受けるなどにより、基端側ネジ部３１ｃがネジ穴２１ｆ，２１ｇから引き抜かれ得る。 In the screw 31 having the above-described configuration, the tip side screw portion 31a serves as a stopper for preventing the entire screw from being pulled out from the screw holes 21f and 21g. The base side screw part 31c can be pulled out from the screw holes 21f and 21g, for example, when the cover 22 is continuously vibrated.
しかし、先述の通り先端側ネジ部３１ａと基端側ネジ部３１ｃとの間に溝部３１ｂが形成されているため、図３に示すネジ穴２１ｇに入れられたネジ３１のように、基端側ネジ部３１ｃがネジ穴２１ｇから引き抜かれると、溝部３１ｂがネジ穴２１ｇに係合してネジ３１の中心軸がネジ穴２１ｇの中心軸からずれ、ネジ３１がネジ穴２１ｇの縁部に係止される。それにより、先端側ネジ部３１ａがストッパとして機能する。そして、ネジ全体がネジ穴２１ｇから引き抜かれることは、ネジ３１が正確にネジ穴２１ｇの中心軸に沿った方向に移動する場合に限定される。 However, since the groove portion 31b is formed between the distal end side screw portion 31a and the proximal end side screw portion 31c as described above, the proximal end side, like the screw 31 inserted in the screw hole 21g shown in FIG. When the screw part 31c is pulled out from the screw hole 21g, the groove part 31b engages with the screw hole 21g, the central axis of the screw 31 is displaced from the central axis of the screw hole 21g, and the screw 31 is locked to the edge of the screw hole 21g. Is done. Thereby, the front end side screw part 31a functions as a stopper. Then, the extraction of the entire screw from the screw hole 21g is limited to the case where the screw 31 moves accurately in the direction along the central axis of the screw hole 21g.
図３に示すように、基端側ネジ部３１ｃがネジ穴２１ｇから引き抜かれ、溝部３１ｂがネジ穴２１ｇに係合すると、そのネジ３１を軸にカバー２２（上面２２ｂ）がブラケット２１ｅ（ＸＹ面）に対して傾斜可能となる。その傾斜可能な角度θは、溝部３１ｂの径ｄ及び長さｈと、ネジ穴２１ｇの径Ｄ及び深さＨと、の関係から決まる。なお、角度θは、厳密には、開口２２ｇの径及びカバー２２（上面２２ｂ）の厚みにも関係するが、簡単のため、ここではカバー２２の厚みはゼロとして考える。この時ブラケットのＸＺ面（ネジ穴２１ｆ）から−Ｙ方向（ネジ穴２１ｆの中心軸に沿った方向）に寸法Ｅほどずれが生じる（図３におけるずれ量Ｅ）。このずれ量Ｅは、前記ｄ、ｈ、Ｄ、Ｈ以外にもγの関係から決まる。例えば角度θが小さいがずれ量Ｅが大きい、角度θが大きいがずれ量Ｅが小さい等の組み合わせを持つ。 As shown in FIG. 3, when the proximal-side screw portion 31c is pulled out from the screw hole 21g and the groove portion 31b engages with the screw hole 21g, the cover 22 (upper surface 22b) is mounted on the bracket 21e (XY surface) with the screw 31 as an axis. ) Can be inclined. The tiltable angle θ is determined from the relationship between the diameter d and length h of the groove 31b and the diameter D and depth H of the screw hole 21g. Strictly speaking, the angle θ is related to the diameter of the opening 22g and the thickness of the cover 22 (upper surface 22b), but for the sake of simplicity, the thickness of the cover 22 is considered to be zero here. At this time, there is a deviation from the XZ surface (screw hole 21f) of the bracket in the −Y direction (direction along the central axis of the screw hole 21f) by a dimension E (deviation amount E in FIG. 3). This deviation amount E is determined by the relationship of γ in addition to d, h, D, and H. For example, the angle θ is small but the displacement amount E is large, and the angle θ is large but the displacement amount E is small.
カバー２２の上面２２ｂがブラケット２１ｅのＸＹ面に対して傾斜すると、それに伴ってカバー２２の前面２２ａがブラケットのＸＺ面（ネジ穴２１ｆ）から−Ｙ方向（ネジ穴２１ｆの中心軸に沿った方向）に離間する。その離間距離のうちブラケット２１ｅに設けられたネジ穴２１ｆに対して垂直状態のネジ３１の頭部（点Ｇ）にぶつかる可能性のある点Ｉまでの距離である離間距離Ｌ１の最大値は、カバー２２（上面２２ｂ）の傾斜の角度θを用いてＥ＋Ｈ’＋Ｆｔａｎθで求められる（Ｆ＝δ＋ネジ３１の頭部の半径）。例えばＦが小さい場合には、角度θが小さいがずれ量Ｅが大きい方が離間距離Ｌ１が最大になりやすく、逆にＦが大きい場合には、角度θが大きいがずれ量Ｅが小さい方が離間距離Ｌ１が最大になりやすい。なお、上記（Ｅ＋Ｈ’＋Ｆｔａｎθ≧Ｌ１）は、２つのネジの螺入される面（ＸＹ面及びＸＺ面）のなす角度が９０度であることを前提としている。Ｌ１の最大値は、２つのネジの螺入される面のなす角度、γの値、その他の状況で変動し得るが、実際の形状に基づいて定まるものであり、所定の値より小さくなるように形状を設計することができる。 When the upper surface 22b of the cover 22 is inclined with respect to the XY surface of the bracket 21e, the front surface 22a of the cover 22 is accordingly moved from the XZ surface (screw hole 21f) of the bracket to the −Y direction (the direction along the central axis of the screw hole 21f). ). The maximum value of the separation distance L1, which is the distance to the point I that may hit the head (point G) of the screw 31 in a state perpendicular to the screw hole 21f provided in the bracket 21e, of the separation distance, Using the inclination angle θ of the cover 22 (upper surface 22b), E + H ′ + Ftanθ is obtained (F = δ + the radius of the head of the screw 31). For example, when F is small, the angle θ is small but the displacement amount E is large, the separation distance L1 is likely to be maximized. Conversely, when F is large, the angle θ is large but the displacement amount E is small. The separation distance L1 tends to be maximized. The above (E + H ′ + Ftan θ ≧ L1) is based on the premise that the angle formed by the surfaces (XY plane and XZ plane) into which two screws are screwed is 90 degrees. The maximum value of L1 may vary depending on the angle formed by the surfaces into which the two screws are screwed in, the value of γ, and other conditions, but is determined based on the actual shape and is smaller than the predetermined value. The shape can be designed.
カバー２２が傾斜し、前面２２ａの開口２２ｆより下端の点Ｉがネジ３１の点Ｇにぶつかり、ネジ３１の頭部が−Ｙ方向（ネジ穴２１ｆに対して垂直）に引かれることで、ネジ３１の中心軸がネジ穴２１ｆの中心軸に一致し、その先端側ネジ部３１ａがネジ穴２１ｆに嵌入される。カバー２２の前面２２ａのブラケットのＸＺ面からの離間距離Ｌ１の最大値が、ネジ穴２１ｆに入れられたネジ３１の基端側ネジ部３１ｃ及び溝部３１ｂの長さの和（Ａ）より大きい場合、そのネジ３１（またはネジ穴２１ｆ）に（点Ｉが点Ｇがぶつからなくても、一度先端側ネジ部３１ａがネジ穴２１ｆに嵌入された状態で）継続的に振動を与えることにより、先端側ネジ部３１ａがネジ穴２１ｆを通り抜ける、すなわちネジ３１の全体がネジ穴２１ｆから引き抜かれる、可能性がある。 The cover 22 is inclined, the point I at the lower end from the opening 22f of the front surface 22a collides with the point G of the screw 31, and the head of the screw 31 is pulled in the -Y direction (perpendicular to the screw hole 21f). The center axis of 31 coincides with the center axis of the screw hole 21f, and the tip side screw portion 31a is fitted into the screw hole 21f. When the maximum value of the separation distance L1 of the front surface 22a of the cover 22 from the XZ surface of the bracket is larger than the sum (A) of the lengths of the base end side screw portion 31c and the groove portion 31b of the screw 31 inserted in the screw hole 21f. By continuously vibrating the screw 31 (or the screw hole 21f) (even if the point I does not collide with the point G, the tip side screw portion 31a is once fitted in the screw hole 21f), There is a possibility that the side screw portion 31a passes through the screw hole 21f, that is, the entire screw 31 is pulled out from the screw hole 21f.
ネジ穴２１ｆに入れられたネジ３１の基端側ネジ部３１ｃがネジ穴２１ｆから引き抜かれても、先端側ネジ部３１ａまで引き抜かれないようにすれば、ネジ３１はネジ穴２１ｆから外れず、カバー２２が本体２１から落下することもない。そこで、本実施形態の化粧カバー２０では、カバー２２の前面２２ａのブラケットのＸＺ面からの離間距離Ｌ１の最大値Ｅ＋Ｈ’＋Ｆｔａｎθが、ネジ穴２１ｆに入れられたネジ３１の基端側ネジ部３１ｃ及び溝部３１ｂの長さの和Ａより小さくなるように、ネジ穴２１ｆの（ブラケット２１ｅの表面上での）ＸＺ面とＸＹ面との接続点からの離間距離Ｆを定める。この構成により、振動によってネジ３１の頭部が−Ｙ方向に引かれても、カバー２２がＬ１を超えてブラケットのＸＺ面から離間しないため、先端側ネジ部３１ａ、すなわちネジ３１の全体がネジ穴２１ｆから引き抜かれることはない。 Even if the base end side screw portion 31c of the screw 31 put in the screw hole 21f is pulled out from the screw hole 21f, the screw 31 does not come out of the screw hole 21f as long as it is not pulled out to the tip end side screw portion 31a. The cover 22 does not fall from the main body 21. Therefore, in the decorative cover 20 of the present embodiment, the maximum value E + H ′ + Ftanθ of the separation distance L1 from the XZ plane of the bracket 22 on the front surface 22a of the cover 22 is the proximal-side screw portion 31c of the screw 31 inserted in the screw hole 21f. Further, the distance F from the connection point between the XZ plane (on the surface of the bracket 21e) and the XY plane of the screw hole 21f is determined so as to be smaller than the sum A of the lengths of the groove portions 31b. With this configuration, even if the head of the screw 31 is pulled in the −Y direction due to vibration, the cover 22 does not exceed L1 and is not separated from the XZ surface of the bracket. It is not pulled out from the hole 21f.
同様に、カバー２２の上面２２ｂのブラケットのＸＹ面からのＺ方向の離間距離の最大値Ｌ２＝Ｅ’＋Ｈ＋Ｆ’ｔａｎθ’について、Ｌ２＜Ａ’となるように、ネジ穴２１ｇの（ブラケット２１ｅの表面上での）ＸＺ面とＸＹ面との接続点からの離間距離Ｆ’を定める。これにより、２本のネジはいずれも、全体がネジ穴から引き抜かれることが、他方のネジによって防止される。ここで、Ｌ２、Ｅ’、Ａ’及びθ’は図３に示されていないが、それぞれ、図３では下方のネジ３１について示した離間距離Ｌ１、ずれ量Ｅ、ネジ部及び溝部の長さの和Ａ及び傾斜の角度θを、上方のネジ３１について求めた値である。 Similarly, the maximum value L2 = E ′ + H + F′tan θ ′ of the Z-direction separation distance from the XY plane of the bracket on the upper surface 22b of the cover 22 is set so that L2 <A ′ (L of the bracket 21e A separation distance F ′ from the connection point between the XZ plane and the XY plane (on the surface) is determined. Thereby, it is prevented by the other screw that the two screws are all pulled out from the screw hole. Here, L2, E ′, A ′, and θ ′ are not shown in FIG. 3, but the separation distance L1, the shift amount E, the length of the screw portion and the groove portion shown for the lower screw 31 in FIG. 3, respectively. Are the values obtained for the upper screw 31.
なお、本実施形態では、ブラケット２１ｅにおけるネジ穴２１ｆ，２１ｇのＸ軸方向に関する配設位置は等しいとしたが、異なる場合においても、同様に、２つのネジ穴２１ｆ，２１ｇの離間距離を定めればよい。ただし、離間距離は、ブラケット２１ｅに対してカバー２２が傾斜可能な面内（傾斜の基準軸に直交する面内）で定義することとする。 In the present embodiment, the screw holes 21f and 21g in the bracket 21e are disposed at the same position in the X-axis direction. However, even when they are different, the distance between the two screw holes 21f and 21g can be determined similarly. That's fine. However, the separation distance is defined within a plane in which the cover 22 can tilt with respect to the bracket 21e (in a plane orthogonal to the reference axis of tilt).
以上詳細に説明したように、本発明に係る固定構造３０を利用して、すなわち先端側ネジ部３１ａと基端側ネジ部３１ｃとの間にネジ穴より径が小さく、その深さよりも長い溝部３１ｂが形成された軸部を有するネジ３１を用いてカバー２２を本体２１に固定する。ネジ穴２１ｇに入れられたネジ３１を軸にカバー２２がブラケット２１ｅ（本体２１）に対して傾斜しても、カバー２２の前面２２ａの開口２２ｆ近傍はネジ穴２１ｆからその中心軸に平行な方向（−Ｙ方向）に距離Ａ以上離間することはないため、ネジ穴２１ｆに入れられたネジ３１の先端側ネジ部３１ａがネジ穴２１ｆに入り、引き抜かれることはない。従って、カバー２２は、常時、ネジ３１に掛止され、ケーシング（本体）から落下することなく、安全に使用することが可能となる。 As described above in detail, using the fixing structure 30 according to the present invention, that is, between the distal end side screw portion 31a and the proximal end side screw portion 31c, the groove portion is smaller in diameter than the screw hole and longer than the depth thereof. The cover 22 is fixed to the main body 21 using a screw 31 having a shaft portion on which 31b is formed. Even if the cover 22 is inclined with respect to the bracket 21e (main body 21) about the screw 31 inserted in the screw hole 21g, the vicinity of the opening 22f of the front surface 22a of the cover 22 is parallel to the central axis from the screw hole 21f. Since the distance A or more is not separated in the (−Y direction), the tip side screw portion 31a of the screw 31 put in the screw hole 21f enters the screw hole 21f and is not pulled out. Therefore, the cover 22 is always hooked on the screw 31 and can be used safely without dropping from the casing (main body).
給湯装置本体を箱体に近接させた配置の給湯装置において、給湯装置本体１０と箱体との間にはネジ３１の頭部を配するだけの距離を有さない場合もある。かかる場合であっても、本発明に係る固定構造３０を利用することが可能である。図４（Ａ）に示すように、給湯装置本体は正面視が厳密な長方形でなく、端部が切り欠かれた形状である。図４（Ｂ）に端部の拡大図を与える。切り欠かれた部分には空隙があり、そこにネジ３１の頭部を配することができる。また、この配置では、ＸＹ面とＹＺ面とにネジ穴を設けることもできる。図３に対してＦ’がＸ方向の距離となるようにするものであるが、Ｅ’＋Ｈ＋Ｆ’ｔａｎθ’＜Ａ’となるように小さなＦ’とすることができる。 In the hot water supply apparatus in which the main body of the hot water supply apparatus is placed close to the box, there may be a case where there is not enough distance between the hot water supply apparatus main body 10 and the box to place the head of the screw 31. Even in such a case, the fixing structure 30 according to the present invention can be used. As shown in FIG. 4 (A), the hot water supply device main body is not a strict rectangle in front view, but has a shape in which an end portion is cut out. An enlarged view of the end is given in FIG. There is a gap in the notched portion, and the head of the screw 31 can be arranged there. In this arrangement, screw holes can be provided in the XY plane and the YZ plane. Although F ′ is a distance in the X direction with respect to FIG. 3, it can be set to a small F ′ so that E ′ + H + F′tan θ ′ <A ′.
なお、本実施形態の給湯装置１の化粧カバー２０では、ブラケット２１ｅが有する２つの面（ＸＺ面及びＸＹ面）のそれぞれにネジ穴２１ｆ，２１ｇを設け、カバー２２の前面２２ａと上面２２ｂの２面をネジ３１を用いてブラケット２１ｅに固定することとした。これに代えて、ブラケット２１ｅを３つの面（ＸＺ面、ＸＹ面、及びＹＺ面）から構成し、それぞれにネジ穴を設け、カバー２２の３面をネジ３１を用いてブラケット２１ｅに固定することとしてもよい。 In the decorative cover 20 of the hot water supply device 1 of the present embodiment, screw holes 21f and 21g are provided on each of two surfaces (XZ surface and XY surface) of the bracket 21e, and two of the front surface 22a and the upper surface 22b of the cover 22 are provided. The surface was fixed to the bracket 21e using screws 31. Instead, the bracket 21e is composed of three surfaces (XZ surface, XY surface, and YZ surface), each of which is provided with a screw hole, and the three surfaces of the cover 22 are fixed to the bracket 21e using screws 31. It is good.
また、本実施形態の給湯装置１の化粧カバー２０では、固定構造３０を構成する２つのブラケット２１ｅを採用したが、必要とする取り付け強度に応じてブラケット２１ｅの数を適当に定めることとする。 Moreover, in the decorative cover 20 of the hot water supply device 1 of the present embodiment, the two brackets 21e constituting the fixing structure 30 are adopted, but the number of the brackets 21e is appropriately determined according to the required mounting strength.
また、本実施形態の給湯装置１の化粧カバー２０は、本体２１の前面すべてが開いて構成され、この前面を同形状のカバー２２を用いて覆う構成を採用したが、これに限らず、本体２１に前面を設け、その一部に設けられた開口をその開口と同形状又はそれより大きい形状のカバーを用いて覆う構成を採用しても良い。また、前面ではなく側面、後面、或いは下面が開いて構成され、その一面をカバー２２を用いて覆う構成を採用してもよい。
さらに、２面を固定するネジ３１は同じものを用いなくてもよい。
Further, the decorative cover 20 of the hot water supply apparatus 1 of the present embodiment is configured such that the entire front surface of the main body 21 is opened and the front surface is covered with the cover 22 having the same shape. A configuration may be adopted in which a front surface is provided on 21 and an opening provided in a part thereof is covered with a cover having the same shape as or larger than the opening. Further, a configuration may be adopted in which the side surface, the rear surface, or the lower surface is opened instead of the front surface, and that one surface is covered with the cover 22.
Further, the same screw 31 may not be used for fixing the two surfaces.
また、本実施形態の固定構造３０は、給湯装置１の化粧カバー２０においてのみ利用可能なものではなく、被固定物を固定対象に固定するあらゆるものに利用することができる。 In addition, the fixing structure 30 of the present embodiment is not only usable in the decorative cover 20 of the hot water supply device 1 but can be used for anything that fixes an object to be fixed to an object to be fixed.
本発明の固定構造は、被固定物を固定対象に固定するのに好適である。また、本発明の給湯装置は、給湯装置本体から延設される配管を隠す化粧カバーが落下することなく、且つ容易に取り外すことができ、安全に使用する上で好適である。 The fixing structure of the present invention is suitable for fixing an object to be fixed to an object to be fixed. Moreover, the hot water supply device of the present invention can be easily removed without dropping the decorative cover that hides the pipe extending from the hot water supply device body, and is suitable for safe use.
１…給湯装置
１０…給湯装置本体
１１…筐体
１３…固定具
１５…配管類
２０…化粧カバー
２１…ケーシング（本体）
２１ａ，２１ｃ，２１ｇ…梁
２１ｄ…側面
２１ｅ…ブラケット
２１ｆ，２１ｇ…ネジ穴
２２（２２ａ，２２ｂ，２２ｃ，２２ｄ）…カバー（前面、上面、下面、側面・フランジ）
２２ｆ，２２ｇ…開口
２３…脚部
３０…固定構造
３１（３１ａ，３１ｂ，３１ｃ）…ネジ（先端側ネジ部、溝部、基端側ネジ部）
DESCRIPTION OF SYMBOLS 1 ... Hot-water supply apparatus 10 ... Hot-water supply apparatus main body 11 ... Housing 13 ... Fixture 15 ... Pipings 20 ... Cosmetic cover 21 ... Casing (main body)
21a, 21c, 21g ... Beam 21d ... Side 21e ... Bracket 21f, 21g ... Screw hole 22 (22a, 22b, 22c, 22d) ... Cover (front, top, bottom, side / flange)
22f, 22g ... opening 23 ... leg 30 ... fixing structure 31 (31a, 31b, 31c) ... screw (front end side screw part, groove part, base end side screw part)
Claims (4)
前記被固定物は、第１開口が設けられた第１面と第２開口が設けられた第２面とを有し、
前記第１面及び前記第２面は互いに交差し、
前記固定対象には、前記第１開口に対向する第１ネジ穴と前記第２開口に対向する第２ネジ穴とが設けられ、
前記第１開口を介して前記ネジを前記第１ネジ穴に螺入し、前記第２開口を介して前記ネジを前記第２ネジ穴に螺入し、
前記ネジは、先端側ネジ部と基端側ネジ部との間にネジ穴より径が小さく、その深さよりも長い溝部が形成された軸部を有する脱落防止ネジであり、
前記ネジの前記溝部が前記第１ネジ穴又は前記第２ネジ穴に係合した際に前記第１のネジ又は前記第２のネジが前記第１のネジ穴の中心軸又は前記第２ネジ穴の中心軸に対して傾斜可能な最大角度をθとするとき、前記第１のネジ穴の前記固定対象の表面上において前記第１面がθだけ傾いた場合の前記第２開口の前記第２のネジ穴からの乖離長さＬ１と、前記第２のネジ穴の前記固定対象の表面上において前記第２面がθだけ傾いた場合の前記第１開口の前記第１のネジ穴からの乖離長さＬ２との、いずれもが、前記ネジの前記先端端側ネジ部と前記溝部の長さの和（Ａ、Ａ’）よりも短いこと（Ｌ１＜Ａ、Ｌ２＜Ａ’）を特徴とする、固定構造。 A fixing structure for fixing an object to be fixed to a fixing object using a screw,
The fixed object has a first surface provided with a first opening and a second surface provided with a second opening,
The first surface and the second surface intersect each other;
The fixing object is provided with a first screw hole facing the first opening and a second screw hole facing the second opening,
Screwing the screw into the first screw hole through the first opening, screwing the screw into the second screw hole through the second opening ;
The screw is a drop-off prevention screw having a shaft portion in which a groove portion having a diameter smaller than the screw hole and longer than the depth is formed between the distal end side screw portion and the proximal end side screw portion,
When the groove portion of the screw is engaged with the first screw hole or the second screw hole, the first screw or the second screw is a central axis of the first screw hole or the second screw hole. The second opening of the second opening when the first surface is inclined by θ on the surface of the fixing target of the first screw hole, where θ is the maximum angle that can be inclined with respect to the central axis of the first screw hole. The deviation length L1 from the screw hole and the deviation of the first opening from the first screw hole when the second surface is inclined by θ on the surface to be fixed of the second screw hole Each of the lengths L2 is characterized by being shorter than the sum (A, A ′) of the lengths of the tip end side screw portions and the groove portions of the screws (L1 <A, L2 <A ′). A fixed structure.
前記固定対象には、前記複数の第１開口及び第２開口に対応して、複数の第１ネジ穴及び第２ネジ穴が設けられることを特徴とする、請求項１に記載の固定構造。 A plurality of the first openings and the second openings are provided on the first surface and the second surface, respectively.
The fixing structure according to claim 1 , wherein the fixing object is provided with a plurality of first screw holes and a second screw hole corresponding to the plurality of first openings and second openings.
前記固定対象であり、前記給湯装置本体から延設される配管を覆う箱体と、
前記被固定物であり、前記箱体の少なくとも一部に設けられた開口をふさぐカバーと、
を備え、
請求項１又は２に記載の固定構造により、前記カバーが前記箱体に固定されることを特徴とする、給湯装置。 A water heater main body,
A box that covers the pipe that is to be fixed and extends from the hot water supply device main body,
A cover that is the object to be fixed, and covers an opening provided in at least a part of the box;
With
3. The hot water supply apparatus according to claim 1 , wherein the cover is fixed to the box by the fixing structure according to claim 1 .
前記給湯装置本体の下面の端部に前記箱体の上面との間に空隙を有する箇所があり、
前記固定対象である前記箱体は、前記空隙に対向する箇所に前記第１開口又は前記第２開口を有することを特徴とする、請求項３に記載の給湯装置。 The box is disposed under the hot water supply device body,
There is a place having a gap between the upper surface of the box at the end of the lower surface of the water heater main body,
The hot water supply apparatus according to claim 3 , wherein the box body to be fixed has the first opening or the second opening at a position facing the gap.
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