Water storage tank, hot water storage-type heat exchanger, and sanitary washing device

Patent metadata

Field	Value
Publication number	US-10738451-B2
Application number	US-201916250004-A
Country	US
Kind code	B2
Filing date	Jan 17, 2019
Priority date	Mar 23, 2018
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

According to one embodiment, water storage tank has a space in an interior of the water storage tank. Water is stored in the space. The tank includes a lower enclosure, an upper enclosure, and a bonding member. The upper enclosure is positioned on the lower enclosure. The space is formed by the upper enclosure being bonded to the lower enclosure. The upper enclosure is longer than the lower enclosure in a vertical direction. The bonding member bonds the lower enclosure and the upper enclosure and is positioned between the lower enclosure and the upper enclosure. The lower enclosure has a concave part provided on the space side of the bonding member. The upper enclosure has a convex part provided on the space side of the bonding member. The convex part is engaged with the concave part.

First claim

What is claimed is:

1. A water storage tank having a space in an interior of the water storage tank, water being stored in the space, the tank comprising:
a lower enclosure;
an upper enclosure positioned on the lower enclosure, the space being formed by the upper enclosure being bonded to the lower enclosure, the upper enclosure being longer than the lower enclosure in a vertical direction; and
a bonding member bonding the lower enclosure and the upper enclosure and being positioned between the lower enclosure and the upper enclosure,
the lower enclosure having a concave part provided on the space side of the bonding member,
the upper enclosure having a convex part provided on the space side of the bonding member,
the convex part being engaged with the concave part.

2. The tank according to claim 1 , wherein a length in the vertical direction of the convex part is longer than a distance between the bonding member and a lower edge of an inner surface of the upper enclosure.

3. The tank according to claim 1 , wherein
the upper enclosure includes a bonding part to be bonded to the bonding member, and
a surface area from a lower edge of an inner surface of the upper enclosure to the bonding part is greater than a surface area of the bonding part.

4. The tank according to claim 1 , wherein
the lower enclosure includes a first protruding part protruding away from the space from an upper edge of an outer surface of the lower enclosure,
the upper enclosure includes a second protruding part protruding away from the space from a lower edge of an outer surface of the upper enclosure, and
the bonding member overlaps an imaginary line connecting the upper edge of the outer surface of the lower enclosure and the lower edge of the outer surface of the upper enclosure.

5. A hot water storage-type heat exchanger, comprising:
the water storage tank according to claim 1 ; and
a heater heating the water inside the water storage tank.

6. A sanitary washing device, comprising:
the hot water storage-type heat exchanger according to claim 5 ; and
a casing storing the hot water storage-type heat exchanger.

Assignees

• Toto Ltd

Inventors

• Terada Yutaro
• Mitsuhashi Yoshiharu
• Umeda Nobuhiko

Classifications

• E03D9/08 Primary

  Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices (showers A47K3/28; bathing devices for special therapeutic or hygienic purposes A61H33/00, for specific parts of the body A61H35/00 ){; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting} · CPC title

• E03D11/00

  Other component parts of water-closets (pipe-joints or couplings in general F16L ){, e.g. noise-reducing means in the flushing system (noise-reducing means in combination with flushing valves E03D9/14), flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe} · CPC title

• F24H7/00

  Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release · CPC title

• F24H1/185

  using electric energy supply (F24H1/201 takes precedence) · CPC title

• F24H1/181

  Construction of the tank · CPC title