JPS5930813Y2 - vent cap - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a vent cap attached to the outlet of a duct hose used for discharging indoor air to the outdoors, and its purpose is to improve moldability. The object of the present invention is to improve the efficiency of the invention and the ease with which it can be attached to an embedded tube attached to an outer wall.

This type of Ben 1 cap is attached to the outside of an embedded pipe attached to an exterior wall, and is used for purposes such as preventing rainwater from entering.
As is well known, pipes of various sizes are used for embedded pipes, and since these pipes are already attached to the outer wall, it is difficult to connect a vent cap molded to a certain size to this embedded pipe of an unspecified size. It was extremely complicated.

The present invention has been devised with attention to these points, and aims to provide a vent cap that allows adjustment of size differences and is easy to install.The present invention is shown in the drawings below. To explain based on an example, a vent cap main body A is provided with a louver 1 at one end and a cylindrical embedded pipe connection section 2 at the other end, and a metal plate bent to have a substantially U-shaped cross section. A vertical plate 4 and a lower horizontal plate 5 having approximately the same thickness and height as the upper horizontal plate 3 and the embedded pipe connection part 2 are formed, and a hook-shaped cut 6 is made in the upper horizontal plate 3 to cut a part outward. At the same time, a cut 8 is made in the lower horizontal plate 5 and a portion is bent inward so as to expand toward the vertical plate 4. The spring piece B is bent toward the end of the embedded pipe connection part 2 of the vent cap main body A to form the locking piece 9. This vent cap is formed by attaching a plurality of projecting pieces 7 at predetermined intervals to the outer wall surface.

In addition, the spring piece B is a tongue piece 11 formed by two slits (10) running parallel to the generatrix direction of the embedded pipe connection part 2.
It is preferable to use a tube that is drilled on the top because it is easier to fit the tube into the implanted tube.

Further, in the figure, numeral 12 indicates an outer wall, and numeral 13 indicates an embedded tube.

As described above, in the present invention, when forming a plurality of protrusions 7 having sharp tips on the outer circumferential surface of the embedded pipe connection part 2, a spring piece B is attached to the end of the embedded pipe connection part 2 so that the end part By fitting the spring piece B until it contacts the vertical plate 4, the spring piece B is firmly fixed without wobbling due to the elasticity of the locking plate 9 of the upper horizontal plate 3 and the lower horizontal plate 5, which greatly simplifies the molding work. In use, the vent cap is fitted onto the embedded tube 13 that has been attached to the outer wall 12 in advance, as shown in FIG. Although formed, it is firmly held by the elasticity of the protruding piece 7 and the biting of the sharply formed tip.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the proposed product, Figs. 2 to 5 show a spring piece that is the same member, Fig. 2 and 3 are perspective views of the same, Fig. 4 is a developed view, and Fig. 5 is a perspective view of the product. The figure shows a cross-sectional view, and FIG. 6 shows a usage state diagram of the same. A... Pen) 4 Yap body, B... Spring piece, 1... Loud, 2... Embedded pipe connection part, 3... - Upper horizontal plate, 4... Vertical plate, 5... Lower horizontal plate, 6... Hook-shaped cut, 7... Projection, 8. ...cut, 9
・・・・・・Latching piece.

Claims (1)

[Scope of utility model registration request] The vent cap body A has a louver on one end and a cylindrical embedded pipe connection part on the other end, and a metal plate is newly bent to have a roughly U-shaped cross section, and the thickness of the upper horizontal plate and the embedded pipe connection part are adjusted. A straight board and a lower horizontal board of the same height are formed, and a hook-shaped cut is made in the upper horizontal board and a part is bent outward to form a protruding piece with a sharp tip. At the same time, a spring piece B is formed by making a cut in the lower horizontal plate and bending a part inward so as to expand in the direction of the vertical plate to form a locking piece. A vent cap in which a spring piece B is fitted to the end of the embedded pipe connection part of the cap body A, and a plurality of projecting pieces are attached at predetermined intervals to the outer wall surface of the embedded pipe connection part.