JPS6321797U

JPS6321797U -

Info

Publication number: JPS6321797U
Application number: JP11576886U
Authority: JP
Priority date: 1986-07-28
Filing date: 1986-07-28
Publication date: 1988-02-13

Description

[Brief explanation of the drawing]

第１図〜第３図はこの考案の一実施例を示し、
第１図は後部保護網の縦断面図、第２図は第１図
のＸ部の拡大断面図、第３図は第１図の中央取付
板を含む部分の左側面図、第４図〜第６図は従来
例を示し、第４図は側面図、第５図および第６図
は前部および後部保護網のそれぞれ異なる部分の
拡大斜視図である。図において、同一符号は同一または相当部分を
示し、４は羽根、６は後部保護網、７は外周リン
グ、８は前部保護網、９は外周リング、１０は通
風孔、１１は押えリング、１３はガードワイヤで
ある。 Figures 1 to 3 show an embodiment of this invention,
Figure 1 is a longitudinal sectional view of the rear protection net, Figure 2 is an enlarged sectional view of the X section in Figure 1, Figure 3 is a left side view of the part including the center mounting plate in Figure 1, and Figures 4 to 4. FIG. 6 shows a conventional example, FIG. 4 is a side view, and FIGS. 5 and 6 are enlarged perspective views of different parts of the front and rear protective nets, respectively. In the figures, the same reference numerals indicate the same or equivalent parts, 4 is a blade, 6 is a rear protection net, 7 is an outer ring, 8 is a front protection net, 9 is an outer ring, 10 is a ventilation hole, 11 is a presser ring, 13 is a guard wire.

Claims

[Claims for Utility Model Registration] (1) A plurality of guard wires provided radially from the rotation center of the blade, an outer ring that connects the outer peripheral portions of the guard wires in the circumferential direction, and the guard wires and the outer ring. In an electric fan comprising a front protective net and a rear protective net that are supported in the circumferential direction and radial direction, form a large number of ventilation holes, and are connected to each other via an outer peripheral ring, the inner periphery of the outer peripheral ring 1. An electric fan, characterized in that a retaining ring is provided that is elastically fitted to the protective net, and the outer circumferential portion of the protective net is crimped between the inner circumferential surface of the outer circumferential ring and the outer circumferential surface of the retaining ring. (2) Claim for a utility model characterized in that the outer portions of the outer ring and the retaining ring are each bent in the outer circumferential direction to form a rib with an L-shaped cross section, and the respective rib portions are fixed by spot welding. The electric fan described in item 1 of the scope.