JPH06508043A - Respirator filter spool - Google Patents

Abstract

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

Description

[Detailed description of the invention] Artificial filter spool The object of the present invention is to develop a new form for attachment to filter bridge type respirators. It is a formula filter spool.

For example, the filter bridge type respirator described in FI application 900375 In this case, the material used is plate-shaped.

The filter is placed at the tip of the body part that covers the user's face in an arc shape. drilling a hole The plate is attached to the filter so that it is fixed against the body of the ventilator. - placed on top of Since it is a disposable type, the filter can be cleaned after use or once it becomes dirty. The filter is then discarded and the clean filter is removed from the filter cloth wrapper. .

Filter packets are often located not necessarily close to where they will be used. It is stored in a place. Therefore, the user must bring a new filter from the storage location. a partially occluded fill for an extended period of time or must continue to use the filter, in which case particles will pass through the filter. or the filter may restrict the passage of suitable air therethrough. young Even if the user has extra filters in their pocket, these are Even if it is well packaged, it often becomes damp or wrinkled. Becomes unfit for use. Filters are therefore replaced where they are stored. Should. Furthermore, attach the filter to the top of the main body without wrinkles, and drill the holes. It proves difficult to keep the kicked board in place until it is placed in the correct position.

The device according to the invention represents a decisive improvement with respect to the above-mentioned drawbacks.

In order to carry out this improvement, the filter spool according to the present invention Fixation for attachment to a respirator, with the respirator attached to at least one side thereof Filters, including several filters that can be drawn over the device and ventilator - It has the feature of having a spool.

The first advantage of the present invention is that it greatly facilitates filter replacement and respirator maintenance. The user is provided with a new stock of filters. These elements are This means ease of use and filter replacement, and they reduce the amount of dirt in the environment. Facilitate the work of employers under the precincts. Also makes it easier to replace dirty filters Therefore, the present invention improves the health of people using such ventilators.

The invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic cross-sectional view of a spool attached to one side of a ventilator.

FIG. 2 depicts another form of implementation of the invention.

Figure 3 shows holes drilled between successive filters.

A filter spool (or replacement filter cartridge) 1 is shown in FIG. It is attached to the T-piece 4 of the ventilator by means of a fixing device 5. Spool 1 axis A gap 2 parallel to the filter and having the same width as the filter is constructed around the spool 1, and the gap 2 is parallel to the filter. Allowing filter 3 to be drawn from the spool through gap 2.

Gap 2 is located near the fixation point of the ventilator on the side of the filter surface . Installed on top of main body part 7 and filter 3 to keep filter 3 in correct position The plate 6 with the holes drilled in it is attached to the two-stage hinge 8 and 8□ (8 is shown in Fig. 2). ) is attached to the body part 7. Hinge 8, was drilled The other hinge 8□ is used to open and close the plate 6, and the other hinge 8□ is used to open and close the plate 6. to bring the perforated plate 6 to the position (this position is shown in Figure 1). , while in the other position the filter 3 has a perforated plate 6 When pressed against the body part 7, the gap between the perforated plate 6 and the body part 7 ( (this position is not shown). The hinge pin may change position. They are connected to each other by a plate with holes so that the distance between the pins does not change. Ta.

In the situation depicted in FIG. 1 there are five filters in spool 1. Fi The number of routers can of course be increased or decreased as desired. Furthermore, Figure 1 shows the fixing strut. Larp 9 is shown.

FIG. 2 shows another form of implementation of the invention. This is two spools 1.1o , spool 1 is for clean filters and spool 10 is for contaminated filters. It is for filter. This allows used packaging to be discarded at one time and separates individual filters. Tar does not need to be separated. This is referred to by the name cassette technology.

When this is done, the end of the filter has a shaft on which it is mounted. It is practical to provide a spool. But there is another alternative, here Both spools contain clean filters and in this case the spools are not attached to each other. instead, they can be used alternately to maintain balance.

To let the user know how long to pull out a new filter piece , lines were marked between consecutive filters.

Additionally, this line is perforated to facilitate tearing away the desired filter. ing. Figure 3 shows this perforation. The edges of the filter material are heat treated This prevents it from fraying. The same thing happens 2-3 times between successive filters. applied to an area spanning a distance of Perforation 12 is constructed along the center of this area. It was.

Scrape the filter and wind it tightly, then pull the sown material from the end of the spool. You can insert it into it and put it on the spool.

In the case of two spools, the filter is fixed by placing the perforated plate inside the perforated plate. This can be facilitated by being split in two along the middle. This is 2 A joint for joining two halves, for example a snap-on joint. It's a place. A further perforated plate joins the filter from the end adjacent to the spool. (e.g. by the two-stage hinge described above). Drilled holes instead of hinges It is of course also possible to use other known techniques to secure the plate to the ventilator. It is.

In the above, the invention has been described only in terms of two advantageous embodiments. Main departure All changes within the framework of Ming ideas are of course possible.

international search report Continuation of front page (81) Designated countries EP (AT, BE, CH, DE.

DK, ES, FR, GB, GR, IT, LU, NL, SE), 0A (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, SN, TD , TG), AU, BG, BR, CA, C3, HU, JP, KP, KR, No.

PL, R○, SU, US

Claims (7)

[Claims] 1. Filter bridge type, which requires the use of a plate-shaped filter (3) In the filter spool (1) for a respirator, the filter spool (1) is Attached to at least one side of the ventilator, the filter spool is attached to at least one side of the ventilator. Fixing devices (4, 5) for the purpose of fixing on top of the container and some filters (3) and the filter is easy to pull itself onto the ventilator body (7). A respirator filter spool characterized by: 2. In the filter spool for a respirator according to claim 1, a used filter (3) must be separated from other filters (3) after use. A typical ventilator filter spool. 3. The respirator filter spool of claim 1, wherein the filter spool is a continuous filter. - (3) is located in the perforation area ( 12) A filter spool for a respirator, characterized in that it is provided with: 4. In the filter spool for a respirator according to claim 1, the gap (2) is a filter spool for a respirator. Filter spout so that the filter (3) can be pulled out through it. Artificial wall (1) characterized in that it is constructed parallel to the axis of the wall (1) and along its periphery. Filter spool for haustoral equipment. 5. In the spool of the respirator according to any of the preceding claims, the filter spool ( 1) is a respirator spool whose shape is essentially cylindrical. 6. In the filter spool for a respirator according to claim 1, a used filter is provided for that purpose without being separated from unused filters. A respirator filter characterized in that it is wound around a filter spool (10). Luther spool. 7. In the filter spool of the respirator according to claim 1, both filter spools The pools (1, 10) contain new filters, which are to be disconnected after use. A filter spool for a respirator, characterized by: