JPH02106544U - - Google Patents

Description

[Brief explanation of drawings]

The drawings show an example of the implementation of the present invention; Fig. 1 is a side view, Fig. 2 is an enlarged cross-sectional view of a part thereof, Fig. 3 is a state diagram before connection, and Fig. 4 is a diagram of the second embodiment. Figure 5 is an exploded sectional view, Figure 6 is a partial sectional view of another embodiment, Figure 7 is a state diagram before connection, and Figure 8 is an exploded slope view. , Figure 9 is the 6th
10 and 11 are state diagrams before connection, FIGS. 12 to 19 are enlarged cross-sectional views of main parts showing still other embodiments, and FIG. It is an explanatory view explaining a clamp state at the time of caulking processing. 1...Heat exchange cylinder, 2...Exhaust cap, 3...
Flange, 4... Flange, 5... Burner case, 6... Flange, 7... Flange, 8... Engaging protrusion, 9... Reinforcing member, 10... Cut-and-raised piece, 11...
...bending piece.

Claims (1)

[Claims for Utility Model Registration] 1. A housing comprising a heat exchange cylinder and a burner case or an exhaust cap connected by overlapping flanges projecting integrally from the periphery of their ends, A bent piece is provided that protrudes from the outer edge of the flange provided on the burner case or the exhaust cap toward the heat exchange cylinder, and a reinforcing member is provided along the flange that protrudes from the heat exchange cylinder. A combustion device comprising an engaging projection for bending and locking the bent piece at the outer end, and caulking the heat exchange cylinder and burner case or exhaust cap. 2. The combustion device according to claim 1, wherein the upper surface of the reinforcing member is provided with a space into which the tip end of the bent piece enters when the bent piece is bent and locked to the engagement protrusion. 3. In cases where the heat exchanger body and the burner case or exhaust cap are connected by overlapping flanges that protrude integrally from the periphery of their ends, the flange provided on the burner case or exhaust cap An engaging portion is provided that protrudes from the outer end periphery to the side opposite to the heat exchange cylinder, a reinforcing member is provided along the flange protruding from the heat exchange cylinder, and an engaging protrusion is provided at the outer end of the reinforcing member. 2. A combustion device comprising: a heat exchanger cylinder and a burner case or an exhaust cap; and a separate caulking piece that engages with the engaging portion and the engaging protrusion to caulk the heat exchange cylinder and the burner case or the exhaust cap. 4. Claims 1 to 3, wherein the tip of the engagement protrusion is provided with an overlapping protrusion extending in the width direction of the reinforcing member with which the bending piece abuts and overlaps when the bending piece is bent and locked to the engagement protrusion. Combustion device as described. 5. The reinforcing member is configured to include a flat plate portion that overlaps with the flange protruding from the heat exchange cylinder, and the tip of the reinforcing member contacts the flat plate portion when the bending piece is bent and locked to the engagement protrusion. The combustion device according to claim 1 or 2, wherein the combustion device has a length. 6. In the case of a heat exchanger body and a burner case or exhaust cap, which are connected by overlapping flanges projecting integrally from the periphery of their ends, A bent piece is provided that protrudes from the outer edge of the flange toward the heat exchange cylinder, and a reinforcing member is provided along the flange that protrudes from the heat exchange cylinder, and the bent piece is bent at the upper end of the reinforcing member. A combustion device comprising a receiving surface substantially parallel to a flange that receives the heat exchange cylinder when the heat exchange cylinder is stopped, and the heat exchange cylinder and the burner case or the exhaust cap are caulked together. 7. The reinforcing member for a combustion device according to claim 1, wherein the reinforcing member is formed to have a U-shaped cross section.