Attachment structure for water heater

{
  "publication_number": "US10234171B2",
  "country": "US",
  "kind": "B2",
  "title": "Attachment structure for water heater",
  "abstract": "Provided is an attachment structure for a water heater capable of easily and securely attaching the water heater to a wall surface without performing strict alignment, and capable of fine adjustment of an attachment position of the water heater even after the attachment. The attachment structure for the water heater includes a first metal fitting (1) having a wall surface attachment portion (11) configured to be attached to a wall surface (W), and a second metal fitting (2) having an instrument attachment portion (23) configured to be attached to a back surface of the instrument body (3). In the wall surface attachment portion 11, a support portion (12) configured to hang and support a weight of the water heater is extended in a direction separate from the wall surface (W). In the instrument attachment portion (23), an engagement portion configured to engage with the support portion (12) from above is extended in a direction separate from the instrument body (3), and a lateral length of the support portion (12) is set to enough length to slide the engagement portion in a horizontal direction.",
  "claims": [
    "1. An attachment structure for a water heater configured to fix the water heater to an attachment surface such as a wall surface with a metal fitting, the attachment structure comprising: a first metal fitting configured to be attached to the attachment surface; and a second metal fitting configured to be attached to a back surface of the water heater, wherein the first metal fitting comprises a wall surface attachment portion configured to be attached to the attachment surface, and a support portion extended from the wall surface attachment portion in a direction separate from the attachment surface, the support portion configured to engage with the second metal fitting and to hang and support a weight of the water heater, the second metal fitting comprises: an instrument attachment portion configured to be attached to the back surface of the water heater; an engagement portion extended in the instrument attachment portion in a direction separate from the water heater, the engagement portion configured to engage with the support portion of the first metal fitting from above; and an extension portion extending from the instrument attachment portion in a direction separate from the water heater; when the support portion of the first metal fitting and the engagement portion of the second metal fitting are in an engagement state, an attachment surface side of the extension portion and the wall surface attachment portion are located on a same plane; and a lateral length of the support portion of the first metal fitting is set to enough length to slide the engagement portion of the second metal fitting in a horizontal direction.",
    "2. The attachment structure for the water heater according to claim 1, wherein the second metal fitting is above the engagement portion in the instrument attachment portion, the extension portion comprises a first extension piece extended obliquely upward in the direction separate from the water heater, and a second extension piece rising from the first extension piece above the water heater in parallel to the attachment surface, the second extension piece is provided with a hole portion for wall surface fixing, and the attachment surface side of the extension portion is located on the second extension piece.",
    "3. The attachment structure for the water heater according to claim 1 or claim 2, wherein the engagement portion of the second metal fitting comprises an engagement piece extended obliquely downward in a direction separate from the back surface of the water heater.",
    "4. The attachment structure for the water heater according to claim 1 or claim 2, wherein a cutout portion obliquely cut out in a range excluding both ends is provided at a forefront portion of the engagement portion of the second metal fitting.",
    "5. The attachment structure for the water heater according to claim 3, wherein a cutout portion obliquely cut out in a range excluding both ends is provided at a forefront portion of the engagement portion of the second metal fitting.",
    "6. The attachment structure for the water heater according to claim 4, wherein the cutout portion is formed into an M shape.",
    "7. The attachment structure for the water heater according to claim 5, wherein the cutout portion is formed into an M shape.",
    "8. An attachment structure for a water heater configured to fix the water heater to an attachment surface such as a wall surface with a metal fitting, the attachment structure comprising: a first metal fitting configured to be attached to the attachment surface; and a second metal fitting configured to be attached to a back surface of the water heater, wherein the first metal fitting comprises a wall surface attachment portion configured to be attached to the attachment surface, and a support portion extended from the wall surface attachment portion in a direction separate from the attachment surface, the support portion configured to engage with the second metal fitting and to hang and support a weight of the water heater, the second metal fitting comprises: an instrument attachment portion configured to be attached to the back surface of the water heater; an engagement portion extended in the instrument attachment portion in a direction separate from the water heater, the engagement portion configured to engage with the support portion of the first metal fitting from above; an extension portion above the engagement portion in the instrument attachment portion, the extension portion being extended from the instrument attachment portion in a direction separate from the water heater, the extension portion comprises a first extension piece extended obliquely upward in the direction separate from the water heater, and a second extension piece rising from the first extension piece above the water heater in parallel to the attachment surface, the second extension piece is provided with a hole portion for wall surface fixing, and when the support portion of the first metal fitting and the engagement portion of the second metal fitting are in an engagement state, a surface of the second extension piece on an attachment surface side, and a surface of the first metal fitting on an attachment surface side are set to be located on a same plane; and a lateral length of the support portion of the first metal fitting is set to enough length to slide the engagement portion of the second metal fitting in a horizontal direction.",
    "9. The attachment structure for the water heater according to claim 8, wherein the engagement portion of the second metal fitting comprises an engagement piece extended obliquely downward in a direction separate from the back surface of the water heater.",
    "10. The attachment structure for the water heater according to claim 8, wherein a cutout portion obliquely cut out in a range excluding both ends is provided at a forefront portion of the engagement portion of the second metal fitting.",
    "11. The attachment structure for the water heater according to claim 9, wherein a cutout portion obliquely cut out in a range excluding both ends is provided at a forefront portion of the engagement portion of the second metal fitting.",
    "12. The attachment structure for the water heater according to claim 10, wherein the cutout portion is formed into an M shape.",
    "13. The attachment structure for the water heater according to claim 11, wherein the cutout portion is formed into an M shape."
  ],
  "description_excerpt": "Field of the Invention The present invention relates to an attachment structure for a water heater to attach the water heater to a wall surface or the like. Description of the Related Art Conventionally, as an attachment structure configured to fix a water heater to a wall surface, for example, JP-A-2002-310512 and JP-A-1997-303883 have disclosed a structure configured to attach a metal fitting to a back surface upper portion of the water heater, and to fix the metal fitting to the wall surface with screws. In this attachment structure, a screw for temporary fixing is driven into the wall surface in advance, and in a temporary fixed state where a hanging hole of the metal fitting attached to the water heater is hung on the screw, this metal fitting is fixed with the screws. JP-A-2003-279162 has disclosed a structure where a laterally-long first metal fitting is fixed to a wall surface, and a laterally-long second metal fitting provided in a back surface of a water heater is inserted into the first metal fitting while being slid in a lateral direction to install the water heater on a wall.\n\nJP-A-2005-147529 has disclosed a structure where a metal fitting having a bracket portion extending downward is attached to a back surface upper portion of a water heater, and this bracket portion of the metal fitting is inserted from above into an insertion space of a front-side metal plate fixed to a wall surface to install the water heater to a wall.",
  "cpc": [
    "F24H 9/06",
    "F16B 5/02",
    "F24H 9/0005",
    "F24H 9/02"
  ],
  "ipc": [
    "F24H 9/00",
    "F24H 9/02",
    "F24H 9/06"
  ],
  "assignees": [
    "RINNAI KK"
  ],
  "inventors": [
    "ANDO MASAKAZU"
  ],
  "filing_date": "2017-08-01",
  "publication_date": "2019-03-19",
  "grant_date": "2019-03-19",
  "priority_date": "2016-08-25",
  "application_number": "US-201715665620-A",
  "family_id": "59738187",
  "citations": [
    "DE19505053A1",
    "DE20009046U1",
    "DE29712919U1",
    "DE8501437U1",
    "FR3027100A1",
    "JP2002310512A",
    "JP2003279162A",
    "JP2005147529A",
    "JPH09303883A",
    "JPS586140A",
    "JPS60118454A",
    "JPS6270246A",
    "US4955573A",
    "US5487518A",
    "US5761379A"
  ]
}