JPS638378B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation system with an improved shutter mounting structure.

Conventionally, a shutter attached to a ventilation system has been pivotally supported on a pivot formed in the side wall of an opening at one end of the ventilation system frame. However, although the number of parts can be reduced by integrally forming the pivot support with the frame, the frame cannot be easily molded.

In view of the above-mentioned points, an object of the present invention is to provide a ventilation system that can be easily molded without increasing the number of parts and improves work efficiency. By doing so, each component to be installed inside the ventilator frame can be assembled before being assembled into the frame.

This is shown in FIGS. 1 to 8 below. The present invention will be explained by taking as an example a ventilation device that is used by being inserted into a cylindrical opening formed in a wall surface.

The ventilation device 1 includes a cylindrical ventilation device frame 2, a ventilation decorative grille 3 that is attached to the indoor opening of the frame 2 and whose peripheral edge contacts the wall surface, and a ventilation grille 3 that is attached to the inside of the frame 2 with screws 4. a motor 7 mounted on the support 5 with a screw 6; a blade 8 mounted on the rotating shaft of the motor 7; two shutters 9U and 9D that can be opened and closed, and a screw 4 that fixes the support 5.
It consists of a bow-shaped attachment and holding spring 10 that is attached to the outer surface of the frame 2. The frame body 2, ventilation decorative grille 3, and blades 8 are molded from synthetic resin.

The support body 5 is molded using a sheet metal press, and is formed into a substantially inverted triangular shape with an arcuate cutout at the upper edge. A corner of the triangular supporting body 5 is formed with a bent part 12 that abuts the inner surface of the frame 2 and has a screw hole 11 into which the screw 4 is screwed. Bent portion 1 formed at the lower corner of the support 5
2 has an extension portion 13 extending toward the opening of the frame body 2.
is formed. An elastic body 14 is attached to the rising end portion of the extension portion 13. The mower 7 is attached to the center portion of the support 5, and the surface on which it is attached is the back side of the surface on which the bent portion 12 extends. A notch 15 formed on the upper edge of the support body 5 having an inverted triangular shape is provided at the inner edges at both ends and at the center of both side edges.
A bearing hole 18 that pivotally supports the shutter shafts 16 and 17,
Hole pieces 20 and 21 with holes 19 formed therein are formed.
A protrusion 22 is formed on the upper edge of the protrusion piece 21 formed on both side edges of the support body 5. The protrusion 22 comes into contact with the shutter 9D when it is opened to restrict its opening. The shutters 9U and 9D each have a semi-disc shape, and two of them form a disc sufficient to close the frame 2. The shutter 9D located on the lower side is
A cut-and-raised piece 24 with a shaft insertion hole 23 formed therein is formed in a portion of the upper straight portion of the upper edge facing the protruding piece 21 . The shutter pivot 17 is inserted into the bearing hole 1 of the projecting piece 21.
9 and the shaft insertion hole 23 of the cut and raised piece 24, the shutter 9D is pivotally supported by the support body 5. Linear notches 25 are formed in both lower sides of the arcuate edge of the shutter 9D to prevent the shutter 9D from hitting the inner surface of the frame 2 when opening and closing. An elastic body 26 is attached to the upper edge of the shutter 9D. The shutter 9U located on the upper side has cut and raised pieces 28 in which a shaft insertion hole 27 is formed on the upper both sides of the upper edge of the shutter 9U, facing the protruding pieces 20. The shutter shaft 16
is inserted into the bearing hole 18 of the projecting piece 20 and the shaft insertion hole 27 of the cut-and-raised piece 28, so that the shutter 9U is pivotally supported on the support body 5. Bent portions 29 are formed on both sides of the arcuate edge of the shutter 9U. The bent portion 29 comes into contact with the opening edge of the frame 2 when the shutter 9U is opened, and the bent portion 29
This increases the opening angle of the shutter 9U compared to the case where the shutter 9U is not formed. Further, the bent portion 29 may be a notch, but by forming the bent portion 29 as described above, the contact with the frame 2 is soft. The shutter pivots 16 and 17 are prevented from coming off by having their ends located close to the inner surface of the frame 2 when the support 5 is installed inside the frame 2. Therefore, the shutters 9U and 9D can be easily attached and detached by taking the support body 5 in and out of the frame body 2. The ease with which the shutters 9U and 9D can be installed and removed is very convenient when the ventilation system 1 is used for either exhaust or intake purposes by changing the direction of insertion into the opening formed in the wall. It is.

In this embodiment, the support body 5 has a substantially inverted triangular shape, but various shapes such as a cross shape are possible, and the material may be synthetic resin.

As described above, according to the present invention, the shutter is pivotally supported on the support body in which the motor is mounted in the frame, and the mounting part of the shutter can be easily formed without increasing the number of parts, and the assembly efficiency is improved. It is effective.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a ventilation system adopting the present invention, Fig. 2 is a rear view of the same, Fig. 3 is a rear view of the support, Fig. 4 is a cross-sectional view of Fig. 3, and Fig. 5 is a The front view of the lower shutter, Figure 6 is the same left side view, and Figure 7 is the front view of the lower shutter.
The figure is a front view of the upper shutter, and FIG. 8 is a right side view of the same. 2... Ventilator frame, 5... Support, 7... Motor, 8... Vane, 9U, 9D... Shutter.

Claims (1)

[Claims] 1. A ventilator frame body, a motor and blades installed in the frame body, and a shutter for opening and closing an opening at one end of the frame body, and the shutter is attached to a support body in which the motor is installed in the frame body. A ventilation system that is pivotally supported.