JPH10213352A - Exhaust port cover of water heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lessen the number of components of each mounting metal fitting and to simplify a structure of an exhaust port cover by a method wherein a pair of mounting metal fittings for mounting a cover main body to an exhaust port are constituted of elastically deformable projecting pieces which are put in a state of pressing a pair of inner peripheral edge parts positioned in the opposite parts in the longitudinal direction of the exhaust port. SOLUTION: An exhaust port cover 1 is equipped with a pair of mounting metal fittings 5 fixed to the opposite end parts in the longitudinal direction (coinciding with the longitudinal direction of an exhaust port 21 of a water heater 2) of a cover main body which is bent in the shape of a letter U in plan view, and these mounting metal fittings 5 are formed of elastically deformable projecting pieces made of springs. The paired projecting pieces as the mounting metal fittings 5 are inserted into the exhaust port 21 so that they correspond to a pair of inner peripheral edge parts positioned in the opposite parts in the longitudinal direction of the exhaust port 21. Thereby the paired inner peripheral edge parts being opposite in the longitudinal direction of the exhaust port 21 are pressed in the direction of being expanded by the paired projecting pieces as the mounting metal fittings 5 and the exhaust port cover 1 is made stable in the exhaust port 21 by the biasing forces of these paired projecting pieces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust port cover for changing the discharge direction of combustion exhaust gas by attaching it to an exhaust port of a water heater as required.

[0002]

2. Description of the Related Art FIG. 6 is a perspective view showing a relationship between a conventional exhaust port cover (1) and a water heater main body (2) to which the cover is attached. A horizontally long rectangular exhaust port (21) is open at the upper front of the water heater main body (2), and an exhaust port cover (1) can be attached to the exhaust port (21) as necessary. I have.

[0003] The exhaust port cover (1) is located above and above the exhaust port.
(21) The cover body (11) opening to the side, and the cover body (11)
And a pair of right and left mounting brackets (12) (12) for detachably fixing the bracket to the exhaust port (21). Mounting bracket (12)
As shown in FIG. 7, the upper fitting (14) which engages with the upper edge (219) of the exhaust port (21) formed at the tip end surface of the exhaust top (22).
And a horizontal rail (24) provided in the middle of the vertical direction of the exhaust port (21)
And a lower metal fitting (15) that engages with the lower bracket. And the upper bracket
The mounting seat (141) bent at the base end of (14) is fixed to the bottom plate (142) of the cover body (11) with screws (16) and the base of the other lower bracket (15). The mounting seat (151) bent at the end is a horizontal part (144) at the lower end of the bottom plate (142) with a screw (17).
It is fixed to.

Next, the exhaust port cover (1) is attached to the exhaust port (21).
The work of attaching to is described. First, the screws (17) are loosened to temporarily fix the lower bracket (15). Next, the bent engagement portion (143) at the tip of the upper fitting (14) is engaged with the upper edge (219) of the exhaust port (21) from inside, and in this state, the tip of the lower fitting (15) is bent. Part (153) is engaged with the crosspiece (24) from above.
Tighten (17) to stabilize the lower bracket (15). Thus, the mounting bracket (12) composed of the upper and lower brackets (14) and (15) is fixed to the exhaust port (21). When this operation is separately performed for the pair of left and right mounting brackets (12), the exhaust port cover (1) is attached to the exhaust port (21) of the water heater main body (2).

In this device, the combustion exhaust gas from the water heater main body (2) can be discharged upward by attaching the exhaust port cover (1) to the exhaust port (21). Therefore, when a building or a structure exists near the front of the exhaust port (21), the combustion exhaust is blown to the structure or the like by attaching the exhaust port cover (1) to the exhaust port (21). Since it can be prevented from being attached, it is possible to avoid the inconvenience of thermally damaging the construct or the like.

[0006]

However, in the above-mentioned conventional device, two metal parts, an upper metal part (14) and a lower metal part (15), are required for manufacturing the mounting metal part (12). Since two metal parts are required separately for the pair of left and right mounting brackets (12), (12), the number of parts for configuring each mounting bracket (12) is large, and the exhaust port cover (1 ) Has a problem that the structure becomes complicated.

[0007] The present invention has been made in view of the above point, and is intended to simplify the structure of the exhaust port cover (1) by reducing the number of parts constituting each mounting bracket (12). Is the subject.

[0008]

According to a first aspect of the present invention, there is provided a fuel exhaust system which is open to an outer surface of a water heater main body and has a long exhaust port discharged on one side. A cover body for changing the flow of air in a predetermined direction;
An exhaust port cover including a pair of fittings protruding from the cover body so as to be inserted into the exhaust port and attaching the cover body to the exhaust port, wherein each of the fittings is a longitudinal section of the exhaust port. And a pair of elastically deformable protruding pieces that are pressed against a pair of inner peripheral edges located at opposite portions in the direction.

The above technical means works as follows. These elastically deformable projecting pieces are inserted into the exhaust port so that the pair of projecting pieces as the mounting bracket correspond to the pair of inner peripheral edges located at the longitudinally opposed portions of the exhaust port. Then, a pair of inner peripheral edges facing the longitudinal direction of the exhaust port are pressed in a direction in which the pair of projecting pieces as the mounting brackets are spread, and the exhaust port cover is pressed by the urging force of the pair of projecting pieces. To be stabilized.

According to a second aspect of the present invention, "the projecting piece abuts along a component wall which is inclined in such a manner as to extend from both longitudinal ends of the exhaust port toward the interior of the exhaust port. ], The projecting piece (mounting fitting) engages with the peripheral portion of the exhaust port from the back of the exhaust port. According to a third aspect of the present invention, "a slit is formed at the tip of each of the projecting pieces, and a projecting member from the water heater main body side fits into the slit when the exhaust port cover is attached to the exhaust port. 』
If so, by the fitting of the slit and the protruding member,
The rattle of the exhaust port cover in the width direction of the exhaust port can be prevented.

[0011]

According to the first aspect of the present invention, since each mounting bracket is constituted by a single elastically deformable protruding piece, the mounting bracket is composed of an upper bracket (14) and a lower bracket (15). The number of parts of the mounting bracket is smaller than that of the above-described conventional one which is composed of three parts, whereby the structure of the exhaust port cover can be simplified.

According to the second aspect of the present invention, since the projecting piece as the mounting bracket engages with the peripheral edge of the exhaust port from the back of the exhaust port, the exhaust port cover is more difficult to fall off. According to the third aspect of the present invention, when the exhaust port cover is mounted on the exhaust port, the exhaust port cover is prevented from rattling in the width direction of the exhaust port. improves.

[0013]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the relationship between an exhaust port cover (1) according to an embodiment of the present invention and a water heater main body (2) to which the exhaust port cover is attached, and FIG. 2 is a perspective view of the exhaust port cover (1). It is a perspective view showing the inside.

The exhaust port cover (1) includes a peripheral side plate (3) bent in a U-shape in plan view and a guide plate disposed inside the peripheral side plate (3).
(4) and a mounting fixed to both ends in the longitudinal direction of the cover body (A) (which corresponds to the longitudinal direction of the exhaust port (21) of the water heater body (2)). Metal fittings (5) and (5) are provided, and the fittings (5) and (5) are each formed of a resiliently deformable projecting piece made of a spring.

The peripheral side plate (3) constituting the cover body (A)
It is an integrated structure in which a single rectangular stainless plate is bent in a flat U-shape, and a front plate (30) and a pair of side plates bent in the same direction from both ends in the longitudinal direction
(31) It has (31). Also, the side plate (31)
The facing interval of (31) is set to be slightly wider than the lateral width (width in the longitudinal direction of the opening) of the exhaust port (21) formed on the distal end surface of the exhaust top (22) of the water heater body (2). .

Guide plate mounted in the peripheral side plate (3)
(4) is formed by bending a rectangular plate made of stainless steel and has a horizontal portion (41) and an inclined portion (42) following the horizontal portion (41) and having an upward slope. At both ends in the longitudinal direction of the horizontal portion (41) and at the upper end of the inclined portion (42), mounting pieces (44) (4
4) is bent upright, and these mounting pieces (44), (44) are connected and fixed to the peripheral side plate (3) by rivets (45), (45).

Mounting brackets fixed to side plates (31) protruding from both ends of the peripheral side plate (3) in the longitudinal direction.
(5) is a stainless steel spring plate bent.
Each mounting bracket (5) has a seat (51) secured to the side plate (31) with two rivets (55) and (55), and a seat (51) facing the inside of the exhaust port cover (1). Bent first
A sloping piece (52), a zenith piece (53) following the sloping piece and parallel to the seat (51), a second sloping piece (54) bent outward from the tip thereof, and The guide member (56) is bent inward from the tip of the second inclined piece (54). And, in a pair of mounting brackets (5) (5) disposed opposite to the longitudinal direction of the exhaust port cover (1) (corresponding to the longitudinal direction of the exhaust port (21) of the water heater main body (2)). The interval between the zenith pieces (53) and (53) is
The length of the exhaust port (21) of the water heater main body (2) is set slightly larger than the length in the longitudinal direction, so that the exhaust port cover (1)
The fittings (5) and (5) are pressed against the inner peripheral edges (28) and (28) of the exhaust port (21) which are opposed to the longitudinal direction of the exhaust port (21). .

A guide piece (56) is attached to the mounting bracket (5).
A horizontal slit (58) cut and formed in a range from the tip of the water heater to the zenith piece (53) is formed, and the width of the slit (58) is the width of the exhaust port (21) of the water heater main body (2). The vertical width substantially coincides with the vertical width of the horizontal rail (24) provided in the middle in the vertical direction. In addition, exhaust port
The horizontal rail (24) is provided in (21) in order to prevent birds and the like from entering the exhaust port (21).

As shown in FIG. 1, the exhaust port cover (1)
An exhaust top (22) for discharging combustion exhaust protrudes from the outer surface of the water heater body (2) to which the water heater is attached.
At the tip end of 2), a horizontally-long rectangular exhaust port (21) is opened, and inside the exhaust port (21), the horizontal rail (24) described above is provided.
Is provided. Both ends of this crosspiece (24) are shown in FIGS.
As shown in (2), it is supported by a horizontal rail support plate (29) fixed in the exhaust top (22). That is, at both ends in the longitudinal direction of the exhaust port (21), there is provided a horizontal rail support plate (29) which is inclined so as to expand toward the inside of the exhaust top (22). The horizontal rail (24) is supported by the horizontal rail support plate (29) by inserting the end of the horizontal rail (24) into the through hole (290) formed in the horizontal rail.

Next, the exhaust port cover according to the above embodiment.
The operation of attaching (1) to the exhaust port (21) of the water heater body (2) will be described. As shown in FIG. 1, the exhaust port cover
The ends of the mounting brackets (5) and (5) of (1) are opposed to both longitudinal ends of the exhaust port (21), and in this state, the exhaust port cover (1) is moved toward the water heater body (2). . And mounting bracket (5) (5)
The fittings (5) and (5) are forcibly pushed into the exhaust port (21) so that the slits (58) and (58) formed on the outer side fit on the horizontal rail (24). Then, the outer surface of the guide piece (56) located at the tip of each mounting bracket (5) comes into contact with the inner peripheral edges (28) (28) facing the exhaust port (21) in the longitudinal direction. Further mounting bracket
(5) When (5) is pushed into the exhaust port (21), the mounting brackets (5) (5) formed of elastically deformable protruding pieces are elastically deformed in a direction approaching each other, and the mounting bracket (5) is deformed. ) Tip guide piece
The bent boundary between (56) and the second inclined piece (54) climbs over the inner peripheral edge of the exhaust port (21) to be in the state of FIG.

That is, as shown in FIG. 3, the horizontal rail support plate (29) is inclined in such a manner as to extend from both ends in the longitudinal direction of the exhaust port (21) to the back. (Corresponding to the constituent wall of interest) along the second inclined piece of the mounting bracket (5).
(54) abuts, which causes the mounting bracket (5) to
Then, the work of attaching the exhaust port cover (1) is completed (the state of FIG. 4).

In this case, since the mounting bracket (5) is composed of a single protruding piece, there are two upper and lower brackets (14) and (15).
The number of components is smaller than that of the above-described conventional mounting bracket (12) which required three components, and the structure of the exhaust port cover (1) can be simplified. Further, in the above-mentioned mounting state, as shown in FIGS. 4 and 5, the horizontal rail (24) is inserted into the slit (58) formed in the mounting bracket (5).
(1) It is possible to prevent rattling up and down. Therefore, in this embodiment, the cross rail (24) corresponds to the projecting member described as the invention specifying matter of the third aspect of the present invention.

In this mounting state, the exhaust top (22)
At the end of the bottom (221) of the
(4) The lower end protrusion (48) comes into contact with the lower part,
As a result, the exhaust port cover (1) is maintained in a more stable state. In the above-described embodiment, the mounting bracket (5) is engaged with the cross rail (24) at the slit (58).
In a water heater not provided with a pair of exhaust pins (21), a pair of short pins protrude from both ends in the longitudinal direction of the exhaust port (21), and a mounting bracket
(5) may be engaged. In this case, the pin corresponds to a protruding member which is a feature of the invention of claim 3. In addition, as long as it engages with the slit (58), it is not limited to the horizontal rail (24) or the pin.

Further, if the width of the mounting bracket (5) is set to a dimension substantially corresponding to the width of the exhaust port (21), the width of the exhaust top (22) having no horizontal rail (24) can be improved. The exhaust port cover (1)
Can be mounted without rattling up and down.

[Brief description of the drawings]

FIG. 1 is an exhaust port cover (1) according to an embodiment of the present invention.
And perspective view showing the relationship between the water heater main body (2) to which it is attached and

FIG. 2 is a perspective view showing the inside of an exhaust port cover (1) shown in FIG. 1;

FIG. 3 shows an exhaust port cover (1) and a water heater main body shown in FIG.
(2) Enlarged view of the joint

FIG. 4 is a cross-sectional view of a state where an exhaust port cover (1) shown in FIG. 1 is attached.

FIG. 5 is a longitudinal sectional view showing a state where the exhaust port cover (1) shown in FIG. 1 is attached.

FIG. 6 is a perspective view showing the relationship between a conventional exhaust port cover (1) and a water heater body (2) to which the cover is attached.

FIG. 7 is an enlarged cross-sectional view of a main part showing a connection part between a conventional exhaust port cover (1) and a water heater main body (2).

[Explanation of symbols]

 (1) ・ ・ ・ Exhaust port cover (2) ・ ・ ・ Boiler body (3) ・ ・ ・ Peripheral plate (4) ・ ・ ・ Guide plate (5) ・ ・ ・ Mounting bracket (21) ・ ・ ・ Exhaust port (22) ・ ・ ・ Exhaust top

Claims (3)

[Claims] 1. A cover body that opens to the outer surface of a water heater body and that changes the flow of combustion exhaust discharged from an exhaust port having a long shape on one side in a predetermined direction, and a cover body that can be inserted into the exhaust port. An exhaust port cover that protrudes from the cover body and includes a pair of mounting brackets for mounting the cover main body to the exhaust port, wherein each of the mounting brackets is located on a pair of longitudinally opposed portions of the exhaust port. Exhaust port covers of water heaters each composed of an elastically deformable protruding piece that is pressed against the inner peripheral edge. 2. The exhaust port of the water heater according to claim 1, wherein the projecting piece abuts along a component wall that is inclined from both ends in the longitudinal direction of the exhaust port toward the depth of the exhaust port. cover. 3. The water heater main body side protruding member is inserted into the slit when the exhaust port cover is attached to the exhaust port, wherein a slit is formed at an end of each of the projecting pieces. Exhaust port cover of water heater 2.