DE1628467A1 - Lying vacuum cleaner - Google Patents

Description

The patent attorneys λ α ο / en

Dipl. -Ing .E. Jourdan I b / 8 4 b /

Dipl.-Iiig.W.Beyer Frankfurt / Main Freiherr-vom-Stein-Str.

Aktiebolaget Electrolux
Stockholm / Sweden

Patent application

Priority of the Swedish patent application no. 10081/1966

dated July 22, 1966

Lying vacuum cleaner

The invention relates to a lying vacuum cleaner with a dust collector and motor fan unit, which are arranged within a common elongated housing, which is equipped with suction and exhaust openings for the air conveyed by the vacuum cleaner from the motor fan unit and also on the underside of the housing arranged transport means, which are used to move the vacuum cleaner at a certain distance from serve the work surface.

In vacuum cleaners of this type, the exhaust opening is usually arranged in the rear end cap of the vacuum cleaner. With regard to the accommodation of the dust collector and the motor fan unit in the elongated housing, this arrangement of the exhaust opening is also the closest. In other horizontal vacuum cleaners , the space in the rear end cap is used to accommodate electrical coupling parts

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and in particular a cable reel is exploited. This no longer makes it possible to use the blow-out opening in the rear end cap to arrange.

In a known vacuum cleaner, the exhaust opening was used instead attached together with a fine filter on top of the housing of the vacuum cleaner. However, this arrangement has the consequence that the vacuum cleaner housing becomes unnecessarily bulky.

This disadvantage is eliminated by the present invention, which essentially consists in the fact that the blow-out opening and a diffusion chamber are housed on the underside of the housing, the diffusion chamber being the one from the blow-out opening absorbs emerging blown air and releases it to the outside.

Furthermore, the invention is characterized in that the Diffusion chamber is provided with one or more openings that release the blown air sideways to the outside. Preferably the air is guided in such a way that it is inclined in an upward direction along the housing of the vacuum cleaner flows off. The diffusion chamber is provided with a fine filter for the outwardly deflected blown air.

This training of the vacuum cleaner does not increase the scope enlarged because a previously unused tree under the vacuum cleaner housing is being exploited. An embodiment the invention is shown in the drawing. Show here:

Fig. 1 shows a lying vacuum cleaner,

FIG. 2 shows the diffusion chamber, seen from the inside, according to section I-I in FIG. 1,

FIG. 3 shows a cross section of the diffusion chamber according to FIG

Line H-II in Fig. 2,
Fig. H- in a cross section along the line IH-III of

Fig. 2 a to the exhaust opening of the vacuum cleaner

connected blow hose

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The vacuum cleaner is provided with a housing 10, a removable one front end cap 11 and a likewise removable rear end cap 12 are provided. The front end cap is provided with a suction opening, not shown, while the rear end cap has no air passage, but is closed and tightly connected to the elongated vacuum cleaner housing 10. The vacuum cleaner is also with a handle 13, a power switch 14 and means of transport equipped in the form of runners 15. The embodiment with runners is only shown as an example. So the invention is also with or the like with means of transport in the form of wheels. equipped vacuum cleaners.

The outlet 16 of the vacuum cleaner is on the underside of the housing 10 arranged. The air is drawn from the blow-out opening 16 passed into a diffusion chamber 17. In the exemplary embodiment, this chamber can consist of a box-like There is space attached between the runners 15, but it can also be in one piece with them Skids are made. The air is released from the diffusion chamber to the outside through openings 18. These openings exist in recesses in the runners adjoining the housing.

As FIG. 3 shows, the diffusion chamber is at the openings provided with guide devices 19 for the exhaust air. These are designed in such a way that the exhaust air flows in one direction Guide diagonally upwards along the housing of the vacuum cleaner. It turned out that the submitted Air has a strong tendency to follow the contour of the outside of the vacuum cleaner. The submitted Air will thereby be directed upwards from the middle than that alone could be effected by means of the guide devices 19. This is indicated in FIG. 3 by means of arrows 20 and in FIG. 2 by means of illustrated by arrows 21.

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A fine filter 22 is arranged in the diffusion chamber. These fine filters hold fine dust particles that may have passed through the dust bag, as well as coal dust and the like coming from the engine. The filter also contributes to the fact that the discharged air is even more distributed. After all, the filter is also important for the attenuation of the sound caused by the exhaust air.

consists
The fine filter 22 / from a frame 23 which is partly covered with filter material 24-. The filter can easily be pushed into the diffusion chamber or removed from it through the openings 18. In the pushed-in position, the filter rests on the guide devices 19 and on the underside of the housing 10 in a sealing manner. In another, not shown embodiment of the invention, the filter consists entirely of filter material, which can be provided with a stiffening framework, wherein the filter can be designed as a wedge, the tip of which is directed towards the exhaust opening arranged on the underside of the housing, or it can consist of a filter sheet attached at an angle in a corresponding manner.

In order to simplify the insertion of the filter and in particular the filter not to the guide devices 19 ticked, the bottom of the diffusion chamber with transverse Elevations, e.g. in the form of combs, should be provided. These elevations or ridges also serve as stiffeners

By means of the diffusion chamber according to the invention, a significantly better sound attenuation is achieved than this at ordinary vacuum cleaners. This depends in part on making the diffusion spaces larger can if the diffusion chamber is placed under the vacuum cleaner. To further improve the sound absorption, can take blocks or strips of 25

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sound-absorbing, porous material, e.g. plastic foam or the like, are placed in the diffusion chamber (17). The blocks or strips are preferably made from Pig. 2 emerges, arranged on the inside of the diffusion chamber (17), namely along the against the vacuum cleaner housing adjacent parts of the outer walls of the diffusion chamber, wherein the blocks or strips serve as a seal, whereby the exhaust air is prevented from flowing out between the diffusion chamber and the vacuum cleaner housing 10.

The arranged on the underside of the housing 10 exhaust opening 16 is preferably with a hose or Provide pipe connection. In order to make the opening 16 accessible for the connection of e.g. an opening 26 is arranged in the part of the outer wall of the diffusion chamber located opposite the blow-out opening 16. The opening 26 is provided with an easily removable cover 27. This is shown in Fig. 4-, which also has a hose 28 connected to the outlet opening 16. The hose connection can be in a manner known per se as a bayonet socket or the like. be executed.

Patent claims /

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Claims (12)

Claims 1.) Vacuum cleaner with a dust collector and a motor fan unit, which are arranged within a common elongated housing with suction and exhaust openings for the air conveyed by the vacuum cleaner from the motor fan unit and with transport links for moving the vacuum cleaner with the underside of the housing at a certain distance from the work surface is provided, characterized in that the blow-out opening (16) and a diffusion chamber (17) are housed on the underside of the housing (10), the diffusion chamber (17) from the exhaust opening (16) absorbs incoming blown air and releases it to the outside air. 2. Vacuum cleaner according to claim 1, characterized in that that the diffusion chamber is provided with one or more openings (18), which the blown air Release from the side of the vacuum cleaner. 3. Vacuum cleaner according to claim 1, characterized in that that the diffusion chamber with one or more openings (18) for discharging the blown air the environment of the vacuum cleaner is provided, which are equipped with guide devices (19), which the blown air deflect in a direction obliquely upwards along the housing of the vacuum cleaner. 4. Vacuum cleaner according to one of the preceding claims, d ad.urch characterized in that the diffusion chamber (17) is equipped with a filter (§2) for the outwardly deflected blown air . El I 1216 hg / 8.6.67 009885/0564 5. Vacuum cleaner according to claim 4, characterized in that that the filter (22) is easily pushed into the opening, the diffusion chamber (17) or easily out of it can be removed. 6. Vacuum cleaner according to claim 4 or 5 »characterized in that that the filter consists of a frame (23) that is partially or completely covered with filter material is clothed. 7 vacuum cleaner according to one of the preceding claims, "where the transport links consist of runners» d a d u r et characterized in that the diffusion chamber (17) is arranged between the runners (15) of the vacuum cleaner. 8, vacuum cleaner according to claim 7 »characterized in that that the diffusion chamber (17) with the runners (15) consists of one piece ". 9. Vacuum cleaner according to claim 7 or 8, characterized in that that the blown air to the outside through openings (18) in the runners (15) of the vacuum cleaner is distracted. ■ 10. Vacuum cleaner according to claim 9, d a d u r c h g e k e η nz eic h η e t "that the openings (18) from against the Housing adjacent recesses in the runners (15) exist. 11. Vacuum cleaner according to one of the preceding claims, characterized in that the to The blow-out opening (16) located on the underside of the housing (10) is provided with a hose or pipe connection and that an opening provided with an easily removable cover in the opposite of the blow-out opening Part of the outer wall of the diffusion space (17) is arranged. El I 1216 hg / 8.6.67 0093 8 5 / 056A 12. Vacuum cleaner according to one of the preceding claims, characterized in that the Diffusion chamber (17) with blocks or strips of sound-absorbing material (25), e.g. foam plastic or the like. 13. Vacuum cleaner according to claim 12, characterized in that the blocks or strips (25) are arranged on the inside of the diffusion chamber (17) along the parts of the outer walls of the diffusion chamber (15) adjoining the housing of the vacuum cleaner, the blocks or strips (25) are arranged in such a way that they seal the diffusion chamber (17) against the outside air. El I 1216 hg / 8.6.67 8AD 009885 / 05-64