JPH0539403Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an outer cover for a combustor such as a small water heater.

(Prior Art) Conventionally, an outer cover in which a front cover is provided on the front side of a rear cover is known.

(Problem to be solved by the invention) However, as shown in _FIG .
a ₂ , and a front cover b equipped with a front plate b ₁ and both side plates b ₂ and b ₂ applied to the front side of the rear cover a, as in the conventional case, the side plate b ₂ of the front cover b In the case where the hook c protruding downward from the upper edge of the rear end is fixed to the upper end of the rear cover a as shown in _FIG . ₂
There is a problem in that the tightening allowance d provided at the lower end of the assembly collides with the bottom plate _a2 , making it impossible to assemble the assembly.

The object of the present invention is to provide an outer cover for a combustor that solves the above problems.

(Means for Solving the Problem) A front plate that covers the front surface of the burner and other combustor components is attached to the front surface of the rear cover, which includes a rear panel that covers the rear surface of the burner and other combustor components, and a bottom plate that projects forward from the lower end of the rear cover. In the case where a front cover is provided with a front cover having a front cover and side plates covering both sides thereof, a hook protruding downward from the front is provided on both sides of the upper end of the rear cover, and a hook piece is provided on both sides of the upper end of the rear cover, and a hook piece is provided on both sides of the upper end of the rear cover, and a hook piece is provided on both sides of the upper end of the rear cover, and Bend in the direction to form a surface perpendicular to the hook piece, a notch for locking the hook piece is provided on this surface, and a tightening allowance that overlaps the lower surface of the bottom plate is provided at the lower end of the both side plates. .

(Function) The present invention has the above-mentioned configuration. According to this, the side plates of the front cover that are moved from diagonally downward to diagonally upward in front of the hooks on both sides of the upper end of the rear cover fixed to a wall surface etc. After shallowly engaging the notch on the upper edge of the end, using the engaging part as a fulcrum, lift the front cover upward while swinging it slightly so that its lower end approaches the lower end of the rear cover. When the front cover is deeply engaged with the notch, the tightening allowances at the lower ends of both side plates of the front cover come into contact with the bottom surface of the bottom plate at the lower end of the rear cover without colliding with the bottom plate. It is concluded by etc.

(Example) Next, an example of the present invention will be described based on the drawings.

In Figures 1 and 2, 1 is a rear cover that includes a back plate 1a and a bottom plate 1b protruding forward from its lower end, and is attached to the back of parts such as burners and heat exchangers (not shown); 2 is a front cover; Face plate 2a and both side plates 2
b, 2b, and the front cover 2 is applied to the front surface of the rear cover 1 to constitute, for example, an outer cover of a small water heater.

To explain this in detail, the rear plate 1a of the rear cover 1 has both side edges bent forward, and a hook piece 3 protruding downward from the front is provided at the upper end of the forward bent part _1a1 . The front edge of the forwardly bent portion _1a1 was further bent outward to form an abutting portion _1a2 . Further, the rear end edges of both side plates 2b, 2b of the front cover 2 are bent inward to form an abutment portion 2b perpendicular to the hook piece 3.
b ₂ , and further bend the contact part 2b ₂ backward,
The upper end of the bent portion 2b ₁ to the rear and the corresponding contact portion 2b ₂
A notch 4 was provided at the upper end of the holder. Further, the lower edges of the side plates 2b, 2b are bent inward to form a tightening margin 5 which overlaps the lower surface of the bottom plate 1b of the rear cover 1.

In the above configuration, to explain how to assemble the front cover 2 to the rear cover 1, as described in the section of the operation, first, the rear cover 1 is fixed to a wall surface etc., and the hook pieces of the rear cover 1 are , 3 with the notches 4, 4 of the front cover 2, as shown in FIG. 3, 3 and the notches 4, 4 are deeply engaged, and the tightening allowance 5 of the front cover 2 is brought into contact with the lower surface of the bottom plate 1b of the rear cover 1, and then the front cover 2 is tightened at the tightening allowance 5. The assembly work is completed by fixing it to the bottom plate 1b with screws or the like.

According to this embodiment, the tightening allowance 5 of the front cover 2 does not collide with the bottom plate 1b of the rear cover 1 during the swinging, and then comes into contact with the lower surface of the bottom plate 1b, and after the swinging is completed, the tightening allowance 5 does not hit the bottom plate 1b of the rear cover 1. As shown in FIGS. 4 and 5, the rear cover 1 and the front cover 2 are brought into contact with each other at their abutting portions 1a ₂ and 2b ₂ for positioning in the front-rear direction, and the hooks 3 and 3 and notches 4 , 4 and back plate 1
A forward bent portion 1a ₁ , 1a ₁ and both side plates 2b, 2
The rearward bending portions 2b ₁ and 2b ₁ of b are engaged and positioning is performed in the left and right direction, resulting in easy and reliable assembly.

In the above embodiment, the hook piece 3 of the rear cover 1 is provided with a tapered portion 3a so that it can be easily engaged with the notch 4 of the front cover 2, and the hook piece 3 and the rear cover 1
The distance X between the front bent portion 1a1 and the front bent portion _1a1 is made as small as possible to prevent rattling.

(Effect of the invention) As described above, according to the invention, the front cover and the rear cover have hooks that protrude downward from the front in the notches at their upper parts, and are overlapped with the lower surface of the bottom plate at their lower parts. Since the front cover is assembled by being fastened with screws or the like at the tightening margin, the tightening margin of the front cover will not hit the bottom plate of the rear cover during assembly, and the assembly can be performed reliably.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of one embodiment of the present invention;
The figure is an enlarged view of the main part, Fig. 3 is an explanatory diagram explaining the assembly work, Figs. 4 and 5 are a front view and plan view of the main part of the embodiment shown in Fig. 1, and Fig. 6 7 is an explanatory diagram for explaining the disadvantages of the conventional example, and FIG. 7 is an exploded perspective view of the conventional example. 1... Rear cover, 1a... Back plate, 1b... Bottom plate, 2... Front cover, 2a... Front plate, 2b...
Side plate, 3... hook piece, 4... notch, 5... tightening allowance.

Claims (1)

[Scope of utility model registration request] The rear cover includes a back plate that covers the back side of the burner and other combustor parts, and a bottom plate that protrudes forward from the lower end of the back cover. In the case where the front cover is equipped with a front cover, a hook protruding downward from the front is provided on both sides of the upper end of the rear cover, and the upper edge of the rear end of the side plate of the front cover is bent laterally at a right angle to the hook. 1. An outer cover for a combustor, the outer cover having a notch for locking the hook piece on the surface, and a tightening allowance that overlaps the lower surface of the bottom plate at the lower ends of the side plates.