JPH0113838Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a blower having a removable guard, and provides a blower in which the power cord can be smoothly held when the blower is not in use, and the guard can be easily attached and detached.

An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 designates a blower according to the present invention, which includes a front case 3 and a rear case 4 that can be separated into the front and rear, each having a wind tunnel 2 formed therein, a safety guard 5 that is detachably attached to the rear opening of the wind tunnel 2, and a safety guard 5 that is detachably attached to the rear opening of the wind tunnel 2. It consists of a wind direction changing vane plate 6 rotatably positioned in the front opening.

The front case 3 and the rear case 4 are connected by elastic coupling between elastic claw pieces and engagement holes, and then fixed with screws (not shown) so as not to be easily disassembled. A motor mounting portion 7 is formed in the center of the wind tunnel 2 of the front case 3, and the mounting portion 7 is supported within the wind tunnel by a plurality of support ribs 8 extending radially from the mounting portion to the wind tunnel. ing. A motor 9 is fixed to the rear surface of the mounting portion 7 with a screw. An axial flow fan 11 is fixed to the rotating shaft 10 of the motor 9 with a nut 12 so as to be positioned within the wind tunnel 2. A mounting plate 1 with a pivot 13 protruding from the center is provided on the front surface of the mounting portion 7.
4 is fixed with a screw. The mounting plate 14 also serves as a reinforcing plate for the mounting portion 7. An intermediate rotating body 15 is rotatably mounted on the pivot shaft 13. The wind direction changing plate 6 is fixed to the rotating body 15 by a spinner 16. A power supply cord 1 to the motor 9 is connected to the support rib 8' extending upward from the motor mounting portion 7.
7 is formed into a groove through which it is inserted. The front case 3
A motor control switch 18, a timer 19, a voltage changeover switch 20, a frequency changeover switch, etc. are mounted on the upper part of the motor control switch 18.

A handle 21 is formed on the upper rear surface of the rear case 4. A through hole 23 is formed in the back wall 22 of the handle 21, and the voltage changeover switch 20 and the frequency changeover switch are made to face each other in the throughhole 23. Therefore, both the switches 20 can be easily switched from outside the cases 3 and 4 using a screwdriver or the like as appropriate for the area where the blower 1 is used. Further, the through hole 23 is normally located in a place that is difficult to see, and it will not be accidentally switched during use. A receiving portion 24 is formed in the lower part of the rear case 4 and projects out so as to come into contact with the lower surface of the front case 3. Legs 25 that can be raised freely are pivotally supported on both sides of the lower surface of the receiving portion 24. Support leg pieces 26 are provided on both sides of the lower part of the rear case 4 and protrude in a direction opposite to the receiving part 24, and elastic legs 27 are fixed to the lower surface of the tips of the leg pieces 26.

The wind tunnel 2 is constructed by combining the front case 3 and the rear case 4, and the guard 5 is detachably attached to the rear opening of the wind tunnel of the rear case 4. The guard 5 is composed of several radial bars 28 and a large number of ring bars 29. Both bars 28, 2
Both of the rings 9 are formed to have a substantially circular cross section, and the ring-shaped crosspiece 29 is inclined so that the long axis of the circular crosspiece 29 widens outward as it goes from the center to the outer periphery. Therefore, the air sucked into the fan 11 through the guard 5 has little resistance and is sucked in smoothly. Approximately L-shaped cord hooks 30 bent outward are protruded at several locations on the periphery of the rear opening of the wind tunnel. A claw portion 31 is formed at the end of the hook 30 facing the opening. Therefore, the outer circumferential crosspiece 32 of the guard 5 is attached to the annular step portion 33 formed at the peripheral edge of the opening, and is held in this state by the claw portion 31. In order to attach the guard 5 to the opening, as shown in FIG. do. Alternatively, as shown in FIG. 6, after pressing the end of the hook 30 to make the hook bend, the outer circumferential crosspiece 32 is housed in the annular stepped part 33 to restore the bend of the hook 30, and the claw part 31 It may also be held and attached. The power cord 35 pulled out from the lower through hole 34 of the rear case 4 is held by being hooked onto the hook 30 so as to be wrapped around the outer periphery of the guard 5. Therefore, the power cord 3
5 is not directly wound around the guard 5, the cord will not come off even if the winding of the cord becomes loose and will be securely held. Furthermore, the power cord 35
Since the cord 35 is wrapped around the cord 35 in a large manner, the cord 35 is less likely to bend, and breakage of the power cord during long-term use can be prevented.

As described above, the present invention consists of a main body in which a fan motor is housed, a substantially L-shaped cord hook bent outward and formed at several places around the ventilation opening of the main body, and an end portion of the hook facing the opening. It consists of a removable guard whose outer periphery is locked by the formed claw part and the opening periphery, so that the cord hook can also be used as a locking member for the guard, and the locking member for guard attachment can be specially designed. No need to shape. In addition, since the power cord is wrapped around the power cord in a large manner, there are fewer bends in the cord and breakage of the cord can be prevented, which has great practical effects.

[Brief explanation of the drawing]

Figure 1 is a side sectional view of the proposed blower, Figure 2 is the
Figure 3 is a rear view, Figure 4 is an exploded perspective view of the main parts, Figures 5 and 6 are cross-sectional views of the main parts showing different installation methods, and Figure 7 is the main parts in the installed state. FIG. 8 is a partial sectional view and an exploded rear perspective view. 11... Fan, 9... Motor, 3... Front case (main body), 4... Rear case (main body), 30... Cord hook, 31... Claw portion, 32... Outer periphery (outer periphery), 5 ……guard.

Claims (1)

[Scope of utility model registration request] It has a main body with a fan motor inside, a guard that is removably attached to cover the ventilation opening formed on one side wall of the main body, and a power cord drawn out from the main body that supplies power to the fan motor. A roughly L-shaped cord hook is formed at several points around the periphery of the ventilation opening, along the outside of the outer periphery of the guard, and bent outward from the ventilation opening, and the end of the cord hook is located along the outer periphery of the guard. To,
A blower characterized by forming a claw portion that engages with the outer circumference of the guard, positioning the power cord inside the cord hook, and wrapping the power cord around the guard.