JPS6221838Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a blower in which the support is rotatable with respect to the base, and the purpose of the present invention is to provide a blower that improves assembly work efficiency. The intermediate plate that abuts the lower part is configured to be temporarily held by a temporary fixing body formed in the base, thereby improving assembly work efficiency.

The present invention will be explained below by taking as an example a wall fan which is a blower shown in FIGS. 1 to 4.

Reference numeral 1 denotes a wall-mounted electric fan with the proposed structure, and the electric fan 1 includes a box-shaped base 2 made of synthetic resin, a hollow support 3 rotatably attached to the upper half of the base 2, and the support 3.
It consists of a fan head 5 which is supported via a neck piece 4 at a fork in the distal end thereof so as to be adjustable in the direction of elevation and depression. The neck piece 4 includes a
A handle 6 is attached for rotating the support column 3 and the support column 3.

A switch 7 and a timer 8 for controlling the fan motor of the head 5 are installed in the lower half of the base 2. A power supply cord 9 connecting the switch 7 and timer 8 to the fan motor is wired inside the support column 3. An annular support rib 11 and a plurality of reinforcing ribs 12 extending radially from the rib 11 are provided on the inner surface of the peripheral edge of the through hole 10 formed in the upper half of the base 2 through which the support column 3 is inserted. It is installed protrudingly. A positioning boss 1 is provided on the upper edge of the base 2.
3 is installed protrudingly. A locking claw body 14 is formed on the side wall edge of the upper half of the base 2. Said base 2
An elastic locking body 15 is provided to protrude from the intermediate inner surface of.

An annular collar portion 16 is provided at the lower end of the support column 3. A hole 17 with a deep end is bored in the lower surface of the flange 16, and a spring 18 and a locking body 19 biased by the spring 18 are accommodated in the deep hole 17. There is. A reinforcing metal fitting 20 having a U-shaped cross section is embedded in the lower surface of the flange 16 in which the deep hole 17 is formed.

An annular reinforcing support body 21 having an inverted L cross section is fitted into the flange 16 of the column 3, and an intermediate plate 23 on the lower surface of the column 3 is provided with an engaging portion 22 of the locking body 19.
is brought into contact. The mounting flange 24 stretched over the support body 21 abuts on the intermediate plate 23 . When the support body 21, the column 3, and the intermediate plate 23 are attached to the base 2, the support body 21 is attached to the annular support rib 1.
1 and reinforcing ribs 12, and the positioning boss 13 is aligned with the mounting flange 24.
Lateral positioning is achieved by inserting it into a through hole 25 formed in the. After the support column 3 is inserted into the support body 21 and the collar portion 24 is housed, the spring 18 and the locking body 19 are housed in the deep hole 17. Thereafter, when the intermediate plate 23 is brought into contact with the lower surface of the support column 3, the boss 13 is inserted into the through hole 26 formed in the intermediate plate 23 to perform positioning and at the same time prevent the locking body 19 from protruding. Also, at this time, the locking claw body 14 and the elastic locking body 15 engage with the peripheral edge of the intermediate plate 23, and the support body 21, the pillar 3, and the intermediate plate 23 are temporarily fixed to the base 2.

Reference numeral 27 denotes a back plate that closes the opening of the base 2, and the back plate 27 is attached to the base 2 with screws 28. Further, the support body 21 and the intermediate plate 23 are attached to the back plate 27 with screws 29. Said back plate 2
Notches 3 are provided on both sides of 7 to allow the locking claw body 14 to escape.
0 is formed, and the back plate 27 is formed at the notch 30.
is positioned on the base 2 and at the same time said support 2
The screw hole 31 of No. 1 matches the screw insertion holes 32 and 33 of the intermediate plate 23 and the back plate 27.

As described above, the present invention consists of a synthetic resin base on which electrical components are mounted, a support that protrudes from the base and is rotatably mounted, and a locking mechanism that is biased by a spring stored in the lower part of the support. a body, an intermediate plate formed with an engaging portion that abuts the lower part of the support and that engages and disengages the locking body, and a back plate that closes the opening of the base;
The base is provided with a temporary fixing body that temporarily holds the intermediate plate within the base, and the intermediate plate can be temporarily held within the base to prevent the retaining body from popping out, making assembly work more efficient. It has great practical effects, such as being easy to perform.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the proposed blower, Fig. 2 is a side sectional view of the main part, Fig. 3 is an exploded perspective view, and Fig. 4 is a bottom view with the back plate removed and the intermediate plate on one half side removed. Fifth
The figure is a - sectional view of FIG. 4. 2... Base, 3... Support, 14... Claw body (temporary fixing body), 15... Locking body (temporary fixing body), 23... Intermediate plate, 27... Back plate.

Claims (1)

[Scope of utility model registration request] A synthetic resin base on which electrical components are mounted, a support that protrudes from the base and is rotatably mounted, a locking body biased by a spring stored in the lower part of the support, and a lower part of the support. an intermediate plate formed with an engaging portion that abuts the locking body and engages and releases the locking body; and a back plate that closes the opening of the base; A blower formed with a temporary fixing body for temporary holding.