JPH01148725U - - Google Patents

Description

[Brief explanation of the drawing]

1 to 6 show a first embodiment of a charcoal filter and an after-filter for a charcoal filter according to the present invention, FIG. 1 is a partial sectional view of the charcoal filter of the present invention, and FIG. 3 is a schematic diagram of a filter unit using the carbon filter of the present invention, FIG. 3 is a sectional view taken along the line -- in FIG. 1, FIG. 4 is a perspective view of the after filter of the present invention, and FIG. 6 is an enlarged view of the part in FIG. 5. FIGS. 7 and 8 show a second embodiment of the after filter for a charcoal filter according to the present invention, FIG. 7 is a perspective view of the after filter of the present invention, and FIG. 8 is an enlarged view of the portion in FIG. 7. It is a diagram. 9 and 10 show a third embodiment of the afterfilter for a charcoal filter according to the present invention, FIG. 9 is a perspective view of the afterfilter of the present invention, and FIG. 10 is a section X in FIG. 9. This is an enlarged view. 11 to 13 show a fourth embodiment of the after filter for a charcoal filter according to the present invention, FIG. 11 is a perspective view, FIG. 12 is a partially cutaway side view (lower half), FIG. 13 is a plan view with the filter holder and filter material removed. 14 to 16 show a fifth embodiment of the after-filter for a charcoal filter according to the present invention, FIG. 14 is a perspective view with the filter material removed, and FIGS. 15A and 15B show the spacer and A sectional view of the filter material, FIG. 16 is a side view with a part (lower half) cut away. Fig. 17 is a schematic diagram of a filter unit using a conventional carbon filter, Fig. 18 is a partial sectional view of a conventional carbon filter, Fig. 19 is a partial perspective view of a conventional carbon filter, and Fig. 20 The figure is a perspective view of the tray unit, and FIG. 21 is a sectional view taken along the line -- in FIG. 20. 4...Charcoal filter, 82...Charcoal filling chamber, 83...Filtered air outflow path, 86...Opening, 89
...Contaminated air inlet, 870...Handle, 91, 92,
93, 94, 95...after filter, 910,
920,930...Face plate, 911,9
21,931,941,951...opening, 913,
943...Filter holder, 914, 924, 93
4...Filter material, 923,950...Spacer, 9
54... Filter material, 918... Bell mouth part.

Claims (1)

[Claims for Utility Model Registration] 1. A charcoal filling chamber whose air permeable surface is formed of a porous plate-like member, a filtered air outflow path defined by being sandwiched between the adjacent charcoal filling chambers and having an open front surface; In a charcoal filter having a contaminated air inflow path defined in correspondence with the air outflow path across the charcoal filling chamber, the charcoal filter is detachably attached to cover a front opening of the filtered air outflow path. A charcoal filter comprising: a front end plate having an outflow opening; and a dust filter member that projects into the filtered air outflow path and partitions an air flow path leading to the outflow opening. . 2 Defining an outflow opening in the center of the flat front end plate,
An after-filter for a charcoal filter, characterized in that the dust filtration member is stretched over a filter holder equipped with a vent facing a porous plate-like member of a charcoal filling chamber. 3. A plurality of outflow openings are bored in the flat front end plate, a cylindrical or rectangular filter holder is attached to each of the outflow openings so as to protrude into the air outflow path, and a cylindrical dust filter member is attached to the filter holder. An after filter for a charcoal filter characterized by being coated. 4. The front end plate mounting portion of the filter holder is formed in a bell mouth shape, and the filter holder and the cylindrical dust filter are detachably inserted into the front end plate. After filter for the charcoal filter described in .