JPH0131875Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a ventilation fan, particularly a grille mounting structure.

[Conventional technology]

Fig. 4 is a sectional view showing a conventional ventilation fan disclosed in, for example, Japanese Utility Model Publication No. 59-6182. A blower installed at
A blade 6 is removably formed on the shaft of this electric motor.
It is formed from etc. Reference numeral 7 denotes a panel formed as a part of the frame at an opening at one end of the ventilation passage 2 formed in the frame 1, which is detachably formed on the frame 1, and has a central portion that also serves as a bell mouth. Ventilation port 8
Further, an engaging piece 9 is provided on the upper front surface of this panel, and a female thread 10 is provided on the lower wall. Reference numeral 11 denotes a grill having an opening 12 provided so as to cover the ventilation hole 8 of the panel 7, and an engagement hole 13 formed in the upper side wall to engage with the engagement piece and to be rotatable. A recess 14 and a tongue 15 are formed on the lower wall, and a protrusion 16 is provided on the upper and lower walls. 17 faces the surface having the opening 12, and the convex portion 16
A fixing member that engages with the opening 12a is provided. 18 is a grease filter provided between this fixing member and the grille 11; 19 is an oil receiver that is detachably provided with a knob screw 20 that engages with the female screw 10;
It is formed in a dish shape to prevent oil dust flowing down from one or both of the panels 7, which are a part of the panel 7, from falling onto the floor etc. A protruding piece 21 is provided to hold it in place.

In the ventilation fan configured as described above, by operating the blower 3, air is sucked in through the opening 12 of the grill 11, and the grease filter 18 filters out oil dust and the like in the air. This filtered air is discharged outside from the ventilation opening 8 of the panel 7 through the ventilation path 2. In this way, the oil dust filtered by the grease filter 18 or the oil dust attached to the panel 7 flows downward and is collected in the oil pan 19 from the recess 14, and can be moved to any place by turning the knob screw 20 and removing the oil pan 19. By removing the oil receiver 19, the grille 11 can be removed by rotating around the upper engagement part, and by removing the fixing member 17, the grease filter 18 can be cleaned by washing with water or the like. ing.

[Problem that the invention attempts to solve]

In the conventional ventilation fan as described above, the grille 11 is arranged so that the engagement hole 13 at the top of the grille is engaged with the engagement piece 9 of the frame 1, and the lower part is connected to the tongue part 15 by the protruding piece 2 of the oil pan 19.
1 and tighten the oil pan with the knob screw 20.
Since the grille 11 is attached by being fixed to the grille, there is a problem in that the grille 11 may shake due to dimensional errors between the protruding piece 21 and the thumb screw 20 or between the tongue portion 15 and the female thread 10. Ta.

This invention was made to solve this problem, and the purpose is to obtain a ventilation fan whose panels do not wobble even if there are dimensional errors.

[Means for solving problems]

The ventilation fan according to this invention is provided with an engaging part on the upper part of the frame, a guide member with an inclined surface formed on the lower part, an engaging part that engages with the above-mentioned engaging part on the upper part of the grille, and is provided with a contact portion that abuts on the inclined surface of the guide member and a projecting piece that projects downward, and the oil receiver is attached so that the guide member and the projecting piece are in contact with each other.

[Effect]

In this invention, the grille is pushed inward by the oil pan and the panel is pushed forward by the guide member, thereby preventing the panel from rattling when installed.

〔Example〕

1, 2, and 3 are an exploded perspective view, a cross-sectional view, and a cross-sectional view of essential parts showing one embodiment of this invention. The same or equivalent parts are shown, and 22 is a protective guard formed of metal wire on the front of the grill;
9a is an engaging portion protruding from the upper part of the frame 1; 13a;
15a is an engaging portion formed on the grill 11 to engage with this engaging portion, and 15a is a protrusion made of an elastic member provided at the bottom of the grill 11, the tip of which is bent toward the wall to form an inclined surface 15b. ing. Reference numeral 23 denotes a U-shaped guide member made of an elastic member and provided at the lower part of the frame 1, and both ends thereof are bent inward to form inclined surfaces 23a. Reference numeral 11a is a contact portion provided at the lower end of the grill 11 and formed to contact the inclined surface 23a, 24 is an oil receiver, and a pipe portion 24a is formed facing the female thread 10 and also serving as a screw guide. An inclined wall 24b is formed at the end of the front surface and the wall side, and is inclined so as to spread outward.

In the ventilation fan configured as described above, the engaging portion 13a on the upper part of the grill 11 is connected to the engaging piece 9 of the frame 1.
a, and the lower contact portion 11a is engaged with the guide member 2.
3 and the inclined surface 23a. Next, oil pan 24
is inserted from below so that the protruding piece 15a and the guide member 23 are in contact with each other. At this time, the inclined wall 24b of the oil receiver 24 presses the protruding piece 15a and the guide member 23 inward. Then, the grille 11 is attached to the frame by screwing the knob screw 20 into the female screw 10. By tightening the knob screws 20, the grille 11 is pulled downward b, and the oil pan 24 pushes the grille 11 in the left-right direction a, so that the grille 11 is installed without wobbling. Note that the reason why the peripheral side wall of the grill 11 is formed high is to receive oil dust scattered from the blades 6.

[Effect of idea]

As explained above, in this invention, an engaging part is provided in the upper part of the frame, a guide member having an inclined surface is provided in the lower part, an engaging part is provided in the upper part of the grill to engage with the above-mentioned engaging part, and The lower part is provided with a contact part that contacts the inclined surface of the guide member and a protrusion that protrudes downward, and the oil pan is attached so that the guide member and the protrusion are in contact with each other, thereby preventing the grill from rattling. It has the effect of being attached to the frame without being attached.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of this invention, FIG. 2 is a sectional view of the same, FIG. 3 is a sectional view of a main part, and FIG. 4 is a sectional view of a conventional example. In the figure, 1 is a frame, 2 is a ventilation passage, 3 is a blower, 9a is an engaging part, 11 is a grill, 11a is a contact part, 13a is an engaging part, 15a is a protruding piece, 23 is a guide member, and 23a is The inclined surface 24 is an oil pan. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A frame body forming a ventilation passage, a blower provided in the ventilation passage, a grill provided at the opening of the ventilation passage, and a frame body provided detachably on the grill. An engaging portion is provided at the upper portion of the frame, a guide member having an inclined surface is provided at the lower portion, and an engaging portion that engages with the engaging portion is provided at the upper portion of the grill. Further, the lower part is provided with a contact portion that contacts the inclined surface of the guide member and a projecting piece that projects downward, and the oil receiver is attached so that the guide member and the projecting piece are in contact with each other. ventilation fan. (2) The ventilation fan according to claim 1, wherein one or both of the guide member and the protruding piece are made of an elastic body.