JPS6089539U - ventilation system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is an overall longitudinal sectional side view, FIGS. 2 and 3 are longitudinal sectional side views of main parts in different operating states, and FIG. 5 is a perspective view of the entire hood with the front plate removed, and FIG. 5 is a perspective view of the hood body showing another embodiment of the present invention. In the drawing, 1 is the hood body, 4 is a support shaft, 6 is a ventilation fan (blower), 10 is a motor, 11 and 13 are supports, 14 is a filter, 16 is a hood front plate, 19 is a support piece, 20 is a switch, 21 is an operator, and 28 is a lock mechanism.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A hood body with openings on the front and bottom surfaces and equipped with a blower, and a hood front plate rotatably and removably pivoted to the front opening of the hood body to open and close the hood body. and a filter mounted in the hood main body via upper and lower supports, and a filter interposed in the current conduction path of the motor of the blower, and when the hood front plate is closed and the hood front plate is connected to the hood main body. A ventilation system comprising a switch that is turned off when removed from the front opening of the ventilator. 2. The ventilator according to claim 1 of the utility model registration, wherein the switch is of a push-on type whose operator is turned on by being pressed by the hood front plate when the hood front plate is rotated to open. 3. The ventilation device according to claim 1 or 2, wherein the switch is disposed on the upper support.