JPS6235918Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a blower with an improved stand for adjusting the blowing angle.

[Conventional technology]

In most conventional blowers, the blowing angle in the vertical direction is adjusted by adjusting the angle of the electric motor section with respect to the stand. However, with a box-shaped blower, the blowing angle in the vertical direction cannot be changed structurally unless the stand itself is tilted. Conventional blowers of the latter type have a structure in which a leg part that can be raised and lowered is provided at the bottom of the stand, as seen in, for example, Japanese Utility Model Publication No. 50-39224, and the other leg parts are placed in an upright position. The components include a sleeve that holds the leg parts, a pivot part that rotatably connects the leg parts, and the like.

A conventional blower is constructed as described above, and by raising the leg parts on the front side, the entire blower is tilted forward and backward, and the blowing angle is adjusted.

[Problem that the invention attempts to solve]

In the conventional air blower as described above, an uneven load is applied to the leg parts in an upright position, so a special sleeve or the like is required to hold the leg parts in an upright state.

In other words, the need for a structure to stably hold the rotatable leg parts in an upright position necessitates separate parts such as sleeves for holding the leg parts, resulting in problems such as the need to complicate the structure of the stand. Ta.

This idea was made to solve this problem, and it omit special parts for holding the leg parts in an upright or retracted state, and has a simple structure with a stand that adjusts the air blowing angle with good stability. An object of the present invention is to obtain a blower having a configuration related to the above.

[Means for solving problems]

The blower according to this invention has an arm-shaped piece that can pivot in the front-rear direction at one end in a hollow structure stand provided on the left and right sides of the bottom of the case, and the above-mentioned pivot part is inserted in the stand. The arm-shaped piece has protrusions or recesses that engage with the piece at symmetrical positions in the front and back, and the arm-shaped piece can be positioned at a position where its free end side protrudes downward from the bottom surface of the stand and at a position where it is stored inside the stand, respectively. It is designed to restrict rotation.

[Effect of means to solve problems]

In this invention, a piece pivotably mounted within the stand and retractable from the stand is held in either the protruding state or the retracted state by engagement with the stand.

〔Example〕

Hereinafter, one embodiment of this invention will be explained according to FIGS. 1 to 8. In the figures, the front case 1 is
A blower motor 17 is attached to the holder via a motor mounting plate 42, and the push button switch 14 is attached to a mounting bracket 36 of the push button switch 14 as shown in FIG. A fixing rib 35 provided on the float case 1 is fitted into the mounting piece 38 provided at the other end.
The part marked with is the boss 37 provided on the front case 1.
It is fixed by tightening with screw 39.

The roller 7 that rotates the wind direction changing grille 3 is connected to the shaft 4 of a rotation motor 20 as shown in FIG.
It is attached to 3. The rotation motor 20 is attached to a mounting plate 21 with screws 40. Mounting plate 2
1 is attached at one end to a boss 52 provided on the front case 1 via a piece A18, and is biased in a certain direction by a spring 22 that provides a tensile force around a fulcrum 44 at the other end.
A roller 7 is in contact with the circumferential side surface 19 of the wind direction changing grille 3 with a constant load applied thereto. Switch panel 12 spanning front case 1 and back case 2
A time switch 13 is attached to the . As shown in FIG. 4, this switch panel 12 is inserted by sliding the ribs 45 of the switch panel 12 into the respective guide grooves 46 and 47 of the front case 1 and back case 2. It is held by 2. The blade 8 is attached to the motor 17 by a spinner 9, and the guard 10 is attached by fitting the fixing rib 11 into the attachment hole 48 of the back case 2. A metal part 15 that functions as a bearing is incorporated in the center of the grille 3, and the metal part 15 is fitted into a sliding part 16 that protrudes into a cylindrical shape in the center of the front case 1. As shown, a plate spring 23 is attached with screws 24. This plate spring is provided with a rotation prevention hole 25, into which a stopper 26 provided on the grill knob 4 is fitted to prevent rotation. The wind direction changing grille 33 is rotatably incorporated into the sliding portion 16 of the front case 1 by means of the grille knob 4 and the plate spring 23. The front case 1 and the back case 2 have a support section 3 at the bottom thereof.
4 and 49 are reinforced by fitting into the cylindrical guide portion 33 of the stand 5, as shown in FIG. A fixed foot portion 5 is integrally formed on the bottom of the front case 1 and back case 2 in the hole 32 of the stand 5.
0 and 51 are inserted, and the stand 5, front case 1, and back case 2 are fixed. The stand 5 has two symmetrical protrusions 31 as pivot parts.
Recesses 28, 28, which serve as pivot joints formed on one end side of the arm-shaped piece 6, are incorporated therein. The round portion 27 of the piece 6 constructed as shown in FIGS. 7 and 8 is selectively supported by stopper recesses 30 formed at symmetrical positions on both sides of the convex portion 31 of the hollow stand 5. Further, when the round part 27 is removed from the stopper recess 30, the spring part 29 of the piece 6 is deformed and removed. When the rotating motor 20 is driven with the sliding part 16 and the metal 15 fitted together, the roller 7 rotates, so the wind direction changing grille 3 rotates around the fitted part, and rotates at a predetermined angle. The direction of air blowing from the blades 8 which are rotated by the drive of the air blowing motor 17 is changed by the provided grille.

In addition, the vertical direction of the air blowing can be changed by engaging the round part 27 of the piece 6 with the stopper recess 30 as shown by the broken line in FIG. The air blowing direction becomes horizontal, and the round part 27 of the piece 6 is removed from one stopper recess 30, rotated about half a turn, and connected to another stopper recess 30 located symmetrically across the convex part 31. If the pieces 6 are combined to protrude downward from the lower surface of the stand 5, the front part becomes higher and the air blowing direction is changed upward accordingly.

In the above embodiment, the piece 6 has a protruding round part 2.
7 was provided, and what engaged with this was the concave part 30 for the stopper, but on the contrary, a concave part was formed in the piece 6, and a protrusion (protrusion) was provided on the inner wall surface of the stand 5 to engage with this concave part. It may also be formed.

Furthermore, it goes without saying that the recess 30 provided in the stand 5 may be a through hole instead of a bottomed hole as in the embodiment.

As explained above, according to this invention, an arm-shaped piece that can rotate in the front and back direction is pivotally attached to one end of a pair of hollow stands provided on the left and right sides of the lower part of the case, and is attached to the inner wall surface of the stand. Forms engagement projections or recesses at symmetrical positions on both sides around the pivot point of the piece, and rotates the arm-shaped piece to the opposite side from the position where its free end protrudes downward from the bottom surface of the stand. By making it possible to freely select the position at which the piece enters the stand, and by engaging the protrusion or recess of the stand with the piece to restrain it in each position, the piece can be removed from the stand. It is easy to restrain the pieces in the protruding position and the opposite position stored in the stand, and no separate parts are required, and the piece can be stably held in the stored state and in the protruded state with a very simple structure. Therefore, adjustment of the air blowing angle in the vertical direction can be achieved with a simple configuration.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing one embodiment of this invention, Fig. 2 is a plan view of the main part of this invention, and Fig. 3 is an exploded perspective view showing an embodiment of this invention.
FIG. 4 is a perspective view of the switch panel; FIG. 5 is a cross-sectional view of the grill knob; and FIG. 6 is a cross-sectional view of the stand.
Figure 7 is an exploded perspective view showing the stand part.
FIG. 8 is an assembled perspective view of the stand portion. In each figure, the same reference numerals indicate the same parts, 1 is the front case, 2 is the back case, 3 is the wind direction changing grill, 5 is the stand, 6 is the piece, 17 is the blower motor, 20 is the rotation motor, and 27 is the A round part (convex part), 28 is a concave part as a pivot part, 30 is a concave part for a stopper, and 31 is a convex part as a pivot part.

Claims (1)

[Scope of utility model registration request] A pair of hollow stands are installed on the left and right sides of the lower part of the case in which the motor that rotates the blades is installed, and an arm-shaped stand is pivotally supported in each stand at one end so that it can rotate forward and backward. When the piece is rotated in one direction around its pivot point, the free end protrudes downward from the bottom surface of the stand, and conversely, when rotated in the other direction, the free end protrudes downward from the bottom of the stand. The stand is formed into a shape that allows it to be stored in the stand, and the wall surface of the stand is provided with engagement protrusions or recesses at front and rear symmetrical positions centering on the pivoting portion of the piece, and the piece is placed at its free end. The blower is positioned by engaging with the engaging protrusion or recess when the blower is in a predetermined position protruding downward from the lower surface of the stand and when it is stored in the stand.