JP7111331B2 - Water heater - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater that accommodates a combustion device or the like and heats water flowing therein to supply hot water.

A water heater houses a combustion device including a burner, a heat exchanger, etc. in a housing. It can be attached to the wall of a building, etc. by The mounting bracket is a plate-like body in which an upper mounting portion in the vertical direction that is mounted on the wall surface and a lower mounting portion in the vertical direction that is mounted on the housing side are connected in parallel in the front-rear direction by a horizontal connecting portion. The upper mounting portion is provided with a temporary fixing hole for temporary fixing to a wall surface or the like and a permanent fixing hole for permanent fixing. That is, the housing is attached by screwing the screws into the wall surface or the like through the permanent fixing holes in a state in which the temporary fixing holes are engaged with the temporary fixing screws screwed into the wall surface or the like to temporarily fix (suspend) the housing.

JP-A-2005-9748

However, temporary fixing involves lifting the housing and engaging the upper mounting bracket with the temporary fixing screw. In some cases, it took time and effort to smoothly pass the temporary set screw and lock it. It is also possible to increase the area of the temporary fixing hole, but if the temporary fixing hole shifts above the temporary fixing screw when aligning the position, the temporary fixing screw will get caught in the connection part of the mounting bracket, and you will eventually have to redo it many times. occurs.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a water heater which can be temporarily fixed at the time of installation and has excellent workability.

In order to achieve the above object, the invention according to claim 1 is a water heater in which a mounting bracket for mounting on a vertical surface is provided on the upper part of the back surface of a housing that accommodates a combustion device,
The mounting bracket includes a rear first mounting portion that protrudes upward from the housing in a front view and is fixed to the vertical plane, a front second mounting portion that is fixed to the rear surface, and a first mounting portion. and a connecting portion that connects the second mounting portion and the second mounting portion in parallel with a difference in level in the front and back, and the first mounting portion has a temporary fixing hole for locking with the locking portion provided on the vertical surface. , a permanent fixing hole for fixing to the vertical surface are formed respectively, and the temporary fixing hole is formed with a length spanning from the first mounting portion to at least the connecting portion, and the connecting portion is provided with the locking portion. is formed with a through space that allows relative movement from below the connecting portion to the temporary fixing hole.
According to a second aspect of the invention, in the structure of claim 1, a narrowed portion tapered upward is formed at the upper end of the temporary fixing hole. It is characterized by being exposed upward.

According to the first aspect of the present invention, the connecting portion of the mounting bracket is provided with a through space in which the locking portion can relatively move from below the connecting portion to the temporary fixing hole. Even if it is difficult to visually confirm the locking portion, the locking portion can be easily passed through the temporary fixing hole and locked. Therefore, temporary fixing work at the time of mounting can be performed smoothly, resulting in excellent workability.
According to the invention of claim 2, in addition to the effect of claim 1, since the narrowed portion at the upper end of the temporary fixing hole is exposed above the housing in front view, it is possible to lock the temporary fixing. It becomes easy to align the position of the temporary fixing hole with respect to the part.

1 is a perspective view of a water heater; FIG. It is a front view of a water heater. It is explanatory drawing of a mounting bracket, (A) shows a front surface, (B) shows a plane, (C) shows a bottom surface, (D) shows a side surface, respectively. It is a rear view of a water heater. (A) and (B) are explanatory diagrams (the first mounting portion is shown in longitudinal section) showing the procedure for temporarily fixing the water heater. It is explanatory drawing of the state which attached the water heater to the wall surface.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing an example of a water heater, and FIG. 2 is a front view.
The water heater 1 includes a vertically long box-shaped housing 2 having an opening formed in the front and comprising a top plate 3, a bottom plate 4, left and right side plates 5, 5, and a back plate 6, and a front that closes the front of the housing 2. A cover 7 is provided. The housing 2 accommodates components such as a combustion unit having a burner, a heat exchange unit having a heat exchanger, and a combustion device including an exhaust unit. A long hole 9 into which a laterally long exhaust port 8 is fitted is formed, and combustion air intake holes 10, 10 . . .

Mounting metal fittings 11, 11 for mounting on a vertical surface such as a wall surface are provided on the upper and lower sides of a back plate 6 that forms the back surface of the housing 2. As shown in FIG. As shown in FIG. 3, the mounting bracket 11 includes a first mounting portion 12, a second mounting portion 13, and a parallel mounting portion 12, 13 between the mounting portions 12, 13, which is arranged in parallel with each other. It is a metal plate provided with a connecting portion 14 that connects to.

First, the first mounting portion 12 has a horizontally long rectangular shape, and has a temporary fixing hole 15 at the center in the left-right direction for engaging a temporary fixing screw or the like provided on the vertical surface to which the housing 2 is attached. formed. The temporary fixing hole 15 has a wide portion 16 extending in the vertical direction with the same width, and a triangular constricted portion 17 connected to the upper end of the wide portion 16 and tapered upward. However, the wide portion 16 is formed with a length extending from the first mounting portion 12 to the connecting portion 14 . As a result, a through space 18 penetrating vertically is formed in the connecting portion 14 .
Further, at left-right symmetrical positions about the temporary fixing hole 15, permanent fixing holes 19, 19 for screwing to a vertical plane are formed in an oval shape extending left and right. A pair of left and right round holes 20, 20 are formed on the outside.
Further, a pair of left and right reinforcing ribs 21 , 21 are formed upward from the connecting portion 14 on the lower side of the first mounting portion 12 between the temporary fixing hole 15 and the permanent fixing hole 19 .

Next, the second mounting portion 13 has a laterally long rectangular shape that is longer in the horizontal direction and shorter in the vertical direction than the first mounting portion 12 . As a result, the mounting bracket 11 has a vertically asymmetrical shape.
The second mounting portion 13 is formed with two pairs of inner mounting holes 22, 22 and two pairs of outer mounting holes 23, 23 with different intervals for screwing to the back plate 6, respectively. A pair of left and right reinforcing ribs 24 , 24 are formed downward from the connecting portion 14 between the connecting portions 22 .

When installing the water heater 1 configured as described above, first, as shown in FIG. With the first mounting portion 12 directed toward the back plate 6 side and facing upward and rearward, the back plate is attached by a pair of left and right screws 25, 25 through the outer mounting holes 23, 23 of the second mounting portion 13. Fixed to 6. In this state, the first mounting portion 12 protrudes upward from the housing 2, exposing the narrowed portion 17 of the temporary fixing hole 15, the permanent fixing holes 19, 19, and the round holes 20, 20 upward from the housing 2 in a front view. I am letting
On the other hand, on the lower side of the back plate 6, the second mounting portion 13 faces the back plate side, and the first mounting portion 12 faces downward and rearward. It is fixed to the back plate 6 by a pair of left and right screws 26 , 26 via 22 , 22 . However, it may be fixed to the back plate 6 using the same upper and lower mounting holes, or one of the inner mounting hole 22 and the outer mounting hole 23 of the mounting bracket 11 may be omitted.

Then, the housing 2 is temporarily fixed to the wall surface using the first mounting portion 12 of the mounting bracket 11 on the upper side. In other words, the housing 2 is lifted, and the upper end of the narrowed portion 17 is engaged with the temporary fixing hole 15 by passing the temporary fixing screw as the engaging portion provided in the wall surface to suspend it.
At this time, if the narrowed portion 17 of the temporary fixing hole 15 and the temporary fixing screw can be visually observed, the temporary fixing screw can be directly locked in line with the temporary fixing screw. 5(A), the first mounting portion 12 is brought into contact with the wall surface W on the upper side of the temporary fixing screw 30, and the mounting bracket 11 is slid downward together with the housing 2. As shown in FIG. (B), the temporary set screw 30 passes through the through space 18 without interfering with the connecting portion 14 , moves relatively from the wide portion 16 to the narrowed portion 17 , and engages with the tip of the narrowed portion 17 . stop. Therefore, it can be temporarily fixed easily.

After the temporary fixing, as shown in FIG. 6, a pair of left and right screws 27, 27 are screwed into the wall surface W through the permanent fixing holes 19, 19 for final fixing. Further, in the mounting bracket 11 on the lower side, a pair of left and right screws 28 are screwed into the wall surface W through the main fixing holes 19 , 19 of the first mounting portion 12 . Then, the water heater 1 is attached to the wall surface W via the upper and lower mounting brackets 11,11.
In order to insulate and dampen the wall surface W, sleeve-shaped rubber is attached to the screws 27 and 28, and the screw 27 with rubber is inserted through the round holes 20 and 20 instead of the permanent fixing holes 19 and 19. , 28 can also be screwed into the wall W.

Thus, according to the water heater 1 of the above configuration, the mounting bracket 11 includes the rear first mounting portion 12 fixed to the wall surface W and the front second mounting portion 12 fixed to the back plate 6. 13, and a connecting portion 14 that connects the first mounting portion 12 and the second mounting portion 13 in parallel with each other in a different step in the front-rear direction. A temporary fixing hole 15 for engaging the temporary fixing screw 30 and a permanent fixing hole 19 for fixing to the wall surface W are formed. A through-space 18 is formed in the connecting portion 14 so that the temporary fixing screw 30 can relatively move from below the connecting portion 14 to the temporary fixing hole 15 . Even if it is difficult to visually confirm the temporary fixing hole 15 and the temporary fixing screw 30, the temporary fixing screw 30 can be easily passed through the temporary fixing hole 15 and locked. Therefore, temporary fixing work at the time of mounting can be performed smoothly, resulting in excellent workability.

In particular, here, the upper end of the temporary fixing hole 15 is formed with a narrowed portion 17 that tapers upward, and the upper end of the narrowed portion 17 is exposed above the housing 2 in a front view. It becomes easy to align the position of the temporary fixing hole 15 with respect to the temporary fixing screw 30 when fixing.

In the above embodiment, the temporary fixing hole is formed with a length that spans the connecting portion, but it may be formed with a length that spans the connecting portion and the second mounting portion. The shape of the temporary fixing hole is not limited to the above form, and the upper end may be a semicircular shape instead of a triangular shape, or an elongated hole in which the threaded portion of the temporary fixing screw is engaged may be provided continuously upward in the center of the semicircular shape. , can be changed as appropriate.
As for the form of the mounting bracket itself, in addition to forming the first mounting portion and the second mounting portion vertically symmetrically, changing the position and shape of the reinforcing ribs, and omitting the reinforcing ribs, it is possible to form the final fixing. It is also possible to change the shape of the holes or omit the round holes. Of course, the shape of the connecting portion can be changed, and it is not limited to the case where it is provided horizontally. .

In the above embodiment, the same mounting bracket is used for the top and bottom of the housing, but it is possible to use a mounting bracket with temporary fixing holes only on the upper side and use a mounting bracket without temporary fixing holes on the lower side. . The lower mounting bracket can also be omitted.
In the above embodiment, the mounting bracket is fixed with screws through the main fixing holes and the mounting holes, but other fixtures such as bolts can also be used. The locking portion for temporary fixing is not limited to a screw, and may be a bolt, an L-shaped metal fitting, or the like.
Of course, the configuration of the water heater itself is not limited to the above form, and the vertical surface to be attached may not be the wall surface, but may be a separate plate attached to the wall surface.

DESCRIPTION OF SYMBOLS 1... Water heater, 2.. Housing, 6. Back plate, 7.. Front cover, 11. Mounting bracket, 12. First mounting portion, 13.. Second mounting portion, 14. Connection part 15 Temporary fixing hole 16 Wide part 17 Squeezed part 18 Through space 19 Final fixing hole 25 to 28 Screw 30 Temporary fixing screw W: Wall surface.

Claims (2)

A water heater provided with a mounting bracket for mounting on a vertical surface on the upper part of the back of a housing that houses a combustion device,
The mounting bracket includes a rear first mounting portion projecting upward from the housing in a front view and fixed to the vertical plane, a front second mounting portion fixed to the rear surface, and the A connecting portion is provided for connecting the first mounting portion and the second mounting portion in parallel with a difference in level in the front-rear direction, and the first mounting portion is engaged with a locking portion provided on the vertical plane. A temporary fixing hole for fixing and a permanent fixing hole for fixing to the vertical surface are formed,
The temporary fixing hole is formed with a length spanning from the first mounting portion to at least the connecting portion, and the locking portion is positioned relative to the temporary fixing hole from below the connecting portion. A water heater characterized in that a movable through-space is formed. A narrowed portion that tapers upward is formed at the upper end of the temporary fixing hole, and at least the upper end of the narrowed portion is exposed above the housing when viewed from the front. 1. The water heater according to 1.

Images