TW200302706A - A cleaning head - Google Patents

Abstract

A cleaning head for vacuum cleaning floor surfaces comprises a suction housing with first suction opening (within skirt 270) for removing material from the floor surface. A second suction opening (260) is positioned on the front of the cleaning head, in front of the skirt (270), and is positioned further from the floor surface than the first suction opening. In use, the second suction opening (260) removes material which would otherwise be pushed along by the skirt (270) as the cleaning head is moved across the floor surface. Advantageously, the first suction opening can be completely surrounded by the skirt (270). The cleaning head can be a floor tool for a vacuum cleaner or a cleaning head of an upright type of vacuum cleaner.

Description

200302706 Μ B7 V. Description of the Invention (i) Technical Field The present invention relates to a cleaning head used in or forming part of a vacuum cleaner. 10 15 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 20 The prior art drum or cylinder cleaner (shown in Figure 1) generally includes a main body which contains a separation device 11 such as for self-entry Dirty air stream separates dirt and dust in a cyclone or bag. Dirty air flows to the main body 10 through the assembly of the hose 15 and the rod 16 connected to the main body 10. When the user moves around the room, the main body 10 of the cleaner is pulled accordingly. The cleaning tool 20 is joined to the distal end 17 of the hose and cymbal assembly. Various cleaning tools are usually supplied so that users can choose the appropriate tools for their cleaning work, such as cracking tools and scraping tools. The cleaning tool for general cleaning is a floor tool 20. Although the floor tools of the type shown in Figure 1 work well on hard floor surfaces, they work on carpeted floors-where hair, fluff, and other fibrous materials (collectively referred to as "cilia") fall on the carpet-relatively ineffective: Therefore, efforts have been made to improve the picking performance of floor tools on carpeted floors. Some tools have a brush mounted in the suction inlet, which rotates so as to agitate the ground in the same manner as a brush rod of an upright vacuum cleaner. The brush can be rotated by an air turbine or an electric motor. The air turbine or electric motor is powered by a power source produced by the main body of the cleaner. However, this type of tool is more responsible than passive floor tools. Floor tools are usually designed to handle secondary hard floors (such as wooden floors).

200302706 A7 B7 V. Description of the invention (〇 Board) and cleaning of carpeted surface. To clean the carpeted floor, the floor of the tool runs along the carpeted surface. To clean a hard floor, one or more rows of bristles extend downward from the tool and are used to support the tool on the hard floor 'so that the floor does not scratch the floor surface. The suction channel of the bottom plate guarantees 5 holding effects. The bristles are also used to maintain a low pressure area under the tool to optimize the tool's picking performance for dust. The lower edge of the bristle row usually has a blunt-toothed profile 'so that any small pieces on the floor can pass through the notches and be drawn into the area under the tool floor. Without these notches, large fragments will only be pushed by the bristles and not picked up by the tool. However, the presence of notches in the bristle rows reduces the dust picking performance of the tool. U.S. Patent No. 4,499,628 describes a vacuum cleaner having an opening in a wall before vacuum cleaning the head, the opening only opening when the head is pressed against a wall to improve inspection of materials from areas immediately adjacent to the wall take. 15

Binding hammer, intellectual property, and consumer product cooperation Summary of the Invention The present invention seeks to provide a floor tool that improves picking performance. Therefore, the present invention provides a cleaning item for vacuum cleaning a floor surface, including a suction casing having a first suction opening for facing the floor surface and for removing material from the floor surface, the A first suction opening is defined by a wall of the housing or by a skirt hanging from the housing, and a second suction opening for removing material from the floor surface, wherein the second suction opening is located on the cleaning head In front of the wall

-4-

200302706 Description of the invention (3) 5 10 is farther away from the floor surface than the first-suction opening to remove material during use 'otherwise' the material will move when the cleaning head moves across the floor surface φ Pushed by the wall or the skirt. By providing a second suction opening, larger debris can be reliably sucked away by the tool. Because larger debris (non-dust) is carried by the suction channel, the first suction opening b can be designed in a way so that it can provide good picking performance when thinner materials and materials are retrieved from cracks. In practice, it is preferred that the 'skirt is a continuous skirt that surrounds the periphery of the tool. The continuous skirt has the advantage of making the area of the skirt towel a strong suction force without being affected, < exists in the lube. Therefore, the tool has a good picking performance in terms of large debris and fine objects and dust. 15 Brief Description of Drawings Now, embodiments of the present invention will be described with reference to the accompanying drawings, in which: FIG. 1 shows 7F-conventional vacuum cleaners and floor tools according to the prior art. 20 sets printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Fig. 2 shows the flooring tool of Fig. 1 in more detail; Fig. 3d schematically illustrates a flooring according to an embodiment of the present invention; Fig. 4 shows an alternative embodiment of the present invention in an unintended form; Fig. 5 shows the embodiment of Fig. 4 in more detail; Figure 6 疋 is a cross-section through the floor tool shown in Figure 5, with the bottom plate in a lowered position; Figure 7 shows the underside of the floor tool of Figures 5 and 6;

200302706 A7 B7 V. Description of the invention (4) Figures 8 and 9 are other sections through the floor tool of Figure 5_7, and the tool is another structure; Figures 10 and 11 show the role of the bottom plate in a schematic form; Figure 12 shows the fragment in detail Enter the floor tool during the cleaning operation in the hard floor mode. Figure 13 shows the pressure of the floor tool of the type shown in Figure 12. Figure 14A and 14B show the use of floor tools in -Effect on cracked floor surface; 10 Figs. 15 and 16 show an alternative embodiment of the floor tool; Figs. 17 and 18 show another alternative embodiment of the floor tool; Fig. 19 shows a cleaning head applied to an upright cleaner An embodiment of the invention; Figures 20-22 show a modification of the floor tool, which allows the user to control 15 the flow of air into the floor tool. Implementation Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Figure 3 shows in simplified form the components of a floor tool according to a second embodiment of the present invention. The main components of the tool 200 are a main chassis 21, a 20 chassis 250, a rod connector 240 for connecting to a vacuum cleaning rod or hose, and a connection connecting the chassis 210 to the rod connector 24. The arm 23 °, a hose 235 ° for carrying air from the bottom plate 250 to the 椁 connector 240, defines an air inlet 255, which in use faces the floor surface and extends transversely across the full width of the tool. The chassis 21 has wheels 221, -6- 200302706 A7 B7 V. Description of the invention (5) to allow it to move across the floor surface. The rod connector 240 is suitably sized to match the rod (i.e., a tube or set of telescopic tubes) of a vacuum cleaner. The lever connector 240 is connected to the chassis 210 by a connecting arm 230. The first end of the connecting arm 230 is pivotally connected to the rod connector 5 240 through a connecting member 231. The other end of the connecting arm 230 is pivotally connected to the chassis 210 through a connecting member 232. The connecting arm 230 provides a mechanical connection between the rod connector 240 and the base frame 210, and it is then used to transmit the force applied to the rod by the user to the base frame 210. The connecting arm 230 may form an air flow duct for carrying air from the base plate 250 to the rod connector 240. In this situation, the joints 10 231 and 232 are joints that are gas-tight and airtight, and maintain the air between them when the arm conduit 230, the outlet of the base plate 250, and the inlet of the rod connector 240 move relative to each other Sealed tightly. Alternatively, as shown in FIG. 3, the air flow between the base plate 250 and the rod connector 240 may be carried by a flexible duct 235 separated from the connecting arm 230. The use of a flexible conduit to carry the airflow allows a more reliable seal to be formed between the rod connector 240 and the connecting arm 230, which will remain airtight relative to a certain range of the two parts. As a result, this solution can be cheaper and more reliable. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, each side of the flail arm 230 is provided with a draggable link 231, 232 to allow the rod connector 240 and the rod or hose 20 assembled to the rod connector 24 The chassis 210 moves through a wide range of operating positions. In addition, the base frame 210 and the base plate 250 are maintained in a stable position over the entire range of operating positions. The preferred one is that the connecting arm pivots to the base plate 250, and the pivot axis of the base plate coincides with the pivot axis 232 β of the connecting arm 230 around the base frame 210 and 200302706 A7 B7 V. Description of the invention (6), Preferably, the bottom plate is pivotally supported at a position immediately above the center of the suction channel 255. The connection between the base plate 250 and the base frame 210 allows limited movement between these pieces. This is achieved by placing the stoppers on the chassis 210 on each allowable limit of the path of the chassis. 5 Floor tools can usually be operated between a carpet cleaning mode and a hard floor cleaning fork. In the carpet cleaning mode, the bottom plate runs along the floor surface. In the hard floor cleaning mode, a flexible skirt is disconnected. The floor surface, and the floor is isolated from the hard floor surface. The tool shown in FIG. 3 can have a skirt 270 (shown by a broken line) that surrounds the bottom plate 25 and it can be moved from the raised position shown in FIG. 3 to the lowered position. In the lowered position, it is located on the bottom plate Below 250. Another way to move the skirt 270 is to keep the skirt 270 fixed and to raise or lower the bottom plate 250 itself. The tool shown in detail in Figures 5-9 has such a removable base plate 250. Before explaining this tool in detail, Figure 15 4 shows the main components of the tool. Many of the components are the same as those used to refer to Figure 3 and have just printed instructions for the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The difference lies in the mechanism that links the connecting arm 230 to the chassis 210. In Fig. 3, the connecting arm 230 is directly pivoted about the base frame 210, and in _4, the connecting arm 230 is linked to the base frame 210 via two intermediate arms 234a, 234b. In the carpet floor mode, the floor plate 250 engages the floor surface. The bottom plate 250 can be directly and freely pivoted around the connecting arm 230. In the hard floor cleaning mode, the bottom plate rises and turns into a hole in the bottom frame 210. It can be understood that the two middle arms 234a, 234b simply link the connecting arm 230 to the chassis 210 in one way, which allows the chassis 250 to descend or rise. In the structure shown in FIG. 4, the two middle arms 234a, 234b are locked in position and do not move the test 2 & P Tian Shilang® 1 ancient trade strokes v〆 ΙΟΙ 八 录, 200302706 A7 B7 V. Description of the invention (7) move. Similarly 'In the configuration where the floor is raised, the intermediate arm is locked in different positions. In the two configurations, the connecting arm 230 is effectively pivoted about the base frame 210. Reference is now made to Figures 5-9, which show a preferred embodiment of a floor tool in detail. As before, the main components of the tool 200 are a main chassis 21, a bottom 5 plate 250, a rod or hose connector 240 for connecting to a rod or hose of a vacuum cleaner, a connecting arm 230, and a connector for connecting The hose 23 of the rod connector 240 to the chassis 210. The chassis 210 has wheels 22 that allow the chassis 210 to move across the surface of the floor. A short shaft 222 is fixed to the chassis 210 and extends outward from each side of the chassis 210. A wheel 221, 223 is rotatably secured to each of the shafts 222 to allow the tool to move across the floor surface. It is understood that the two short shafts 222 can be replaced by a single shaft extending across the full width of the chassis, and the wheels can be replaced by rollers, by pads on the lower surface of the tool, or by other devices to allow the floor tool to move across the surface of the floor. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. A rod connector 240 is located behind the tool. The rod connector 240 is 15 suitably sized to match the rod of a vacuum cleaner (16 of FIG. 1). A release mechanism for the lever includes a manually operable button 241 connected to a stopper 242. Other connection schemes may be used, such as a simple interference fit between the sleeve of the rod connector 240 and the rod. The rod connector 240 is connected to the chassis 210 by a test assembly 230, 234. The connecting assembly 20 includes a connecting arm 230 and intermediate arms 234a, 234b. The first end of the connecting arm 230 is pivotally connected to the rod connector 240 through a connecting member 231. The other end of the connecting arm 230 is movably connected to the first intermediate arm 234a by a connecting member 232. The other end of the middle arm 234a carries a pile that is restrained to slide in a groove formed on the inner wall of the first end of the second middle arm 234b.中 -9- 200302706 A7 B7 Description of invention (The other end of the arm 234b is pivotally connected to the top of the chassis 21o. As shown by the broken line 235, a flexible hose directly connects the rod connector 240 to the base plate 250. Soft The first end of the tube 235 is hermetically sealed against the suction outlet of the bottom plate and the second end is hermetically sealed against the rod connector 24. A pivotable one is provided at each end of the connecting arm 230. The links 231, 232 allow the rod connector 240 and the rod or hose fitted to the rod connector 240 to move through a wide range of positions relative to the base frame 210. In addition, the base frame 21 is maintained at a stable position throughout the range. Position. A flexible hose 235 separated from the connecting arm 23o conveys the air flow between the base plate 250 and the stalk connector 10240 to allow greater freedom of movement of the rod connected to the tool. The middle arm The configuration of 234a and 234b is necessary between the connecting arm 230 and the chassis 210 to allow the chassis 250 to move between the working position and the retracted position, which will be described later. A simpler such as previously shown in FIG. 2 In the tool, the bottom plate 250, the bottom frame 210 and the connection The arms 230 can all share the same 15 pivot axis, so that the bottom plate can be pivoted about the bottom frame 210, and the connecting arm 230 can be freely pivoted about the bottom plate 250 and the bottom frame 210. The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed a bottom plate 250 is pivotally mounted to the front of the chassis and is connected to the connecting arm 230 and the first intermediate arm 234a of the connecting assembly. Two flanges 280 extend upward from the top of the bottom plate 250. An aperture in each flange 280 consists of The posts 233 on each side of the arm 20 234a are rotatably supported. The bottom plate 250 can rotate freely within a limited angle range around the arm 234a. The connecting axis between the connecting arm 230 and the middle arm 234 coincides with the middle arm 234 and The connection axis between the bottom plates 250 is such that the force applied by the user to the lever connector and the connecting arm 230 is directly transmitted to the bottom plate 250.

Electricity 2 I I gold connection / mac'Az wide vocalr octachrome, 200302706 A7 B7 V. Description of the invention (9) Now, the base plate 250 of the tool will be described in more detail. The floor tool 200 can be used between the carpet cleaning mode or the "hard floor" mode. In the carpet cleaning mode, the bottom plate 250 engages the floor and travels along the floor. In the "hard floor" mode, a flexible skirt 270 follows Walk towards the floor surface, and the floor is isolated from the floor. 6 and 9 show a bottom plate 250 disposed in a carpet cleaning mode. The outline of the bottom plate 250 is shown in Fig. 6, and a plan view of the bottom plate 250 is shown in Fig.-7. The bottom plate 250 has an air inlet 256 installed in the center. The second suction and extraction channel 255 extends laterally across the tool from each side of the inlet 256. Each channel 1Q 255 terminates in a flowing air inlet on the side of the floor. The bottom mask of the base plate has two spaced apart, sharply defined edges 252, 253, which will be referred to as working edges. The front working edge 252 is defined by the intersection between the inner wall of the suction channel and a planar shaped surface 254a under the floor. Similarly, the rear working edge 253 is defined by the intersection between the inner wall of the suction channel and a planar surface 15 254b below the floor. The working edges 252 and 253 are sharply defined and printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs as shown in Figure 6 to provide effective disturbance when floor tools are used on carpeted surfaces. This agitation effect is further enhanced by the pivotal connection between the bottom plate 250 and the connecting member 230. It has been found that a small radius of curvature can provide effective agitation on the floor surface. The working edges 252, 20 253 also extend the full width of the floor tool. The cilia pickers 258, 259 are located on the planar surfaces 254a, 254b and are isolated from the working edges 252, 253, so that the working edges can perform agitation over the entire width of the carpeted surface. Each of the cilia pickers 258, 259 is of a conventional type and includes a strip of material in which a plurality of fine fibers are fixed. Picking up each cilia -11- 200302706 Α7 Β7 V. Description of the invention (10) The devices 258, 259 are fixed on an arched support, which extends outward from the planar surfaces 254a, 254b on which it is located. The distance between the cilia pickers 258, 259 and the adjacent working edges 252, 253 may be different from those shown in the figure. The use of a cilia picker urges the user to increase the force required to push or pull the 5-plate tool across the floor surface. The width of the ciliary pickers 258, 259 can be increased to the full width of the floor tool, however, this may result in an increase in the thrust required by the user. Figures 10 and 11 show how the bottom plate 250 of the floor tool 200 operates during use. First, FIG. 10 shows a bottom plate 10 250 being pushed forward across the floor surface. When the tool is pushed forward, the bottom plate 250 rotates about the pivot 247, so that the front working edge 252 contacts the floor surface more closely than the rear working edge 253. The sharp edge 252 has an effective agitation effect on the surface, and the surface stack is separated and the dirt is released by the popping effect. When the dirt is released, it is swept by the air flow in the suction channel to the suction 15 inlet 256 along the suction channels 254, 255. Moreover, the front cilia picker 258 contacts the floor surface. In the lowered position, the front cilia picker 258 allows cilia to pass. The posterior cilia picker 259 remains sufficiently close to the surface ' to produce a useful impact on the cilia. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Figure 11 shows a floor tool 20 200 when pushed backward over a floor surface. When the tool is pushed backward, the base plate 250 rotates about the pivoting member 247, so that the rear working edge 253 contacts the floor surface more closely than the front working edge 252. The sharp edge 253 has the same effect as the front edge 252 during the forward action, i.e., it disturbs the surface, and by the action of bounce, it separates the surface stack and releases dirt. The dirt is sucked by the air flow in the suction channel along the suction -12-Shi 4Λ2ΕΡ 洛; 田田 由其 4 # irrigation / mJC, Aylia So 007 people \ engage, 200302706 A7 _________ P7 V. Description of the invention (u) Channel 254, 255 sweeps to the suction inlet 256. The rear cilia picker 259 contacts the floor surface and allows cilia to pass. The front cilia picker 258 stays close to the surface when it rises higher than during the forward action period to prevent the passage of cilia. It can be seen that once the floor tool passes over the cilia, the 5 cilia are captured between the cilia pickers and rise from the surface. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs As mentioned above, in the hard floor cleaning mode, the bottom plate 250 is isolated from the floor surface. In the embodiments shown in Figs. 7, 8 and 12, this is achieved by retracting the bottom plate 250 in the chassis so that only the skirt 270 abuts against the floor surface. The skirt forms a dense iron curtain, such as nylon fiber, which is secured to the bottom plate 250 by crimping, such as 10%. The bottom plate 250 can be retracted into the position shown in Fig. 7, and the lower surface of the bottom plate is inclined with respect to the plane of the suction opening. The skirt 270 forms a continuous curtain around the suction opening and is used to maintain a low-pressure area near the floor surface. A bumper 265 at the front edge of the base frame 210 defines a suction channel 260 which is directed down towards the floor surface, 15 and extends the full width of the tool. The bumper 265 is sufficiently isolated above the lowermost limit of the skirt (see Fig. 12C) so that large debris 269 can pass under the bumper, where it will be located below the suction channel 260. The suction channel 260 is connected to a suction chamber in the chassis 210 by a duct 262 that enters the main suction space of the chassis 210. The bottom plate 250 is inclined 20 in one direction, so that the air flow from the channel 260 easily flows around the lower surface of the bottom plate 250, and then passes along the suction through 254, 255 toward the suction inlet 256. Then, the air flow from the passage 260 is combined with the air flow drawn under the skirt 270. Figure 12 shows the path taken by air and debris when the floor tool is used in hard floor cleaning mode. -13- 200302706 A7 B7 V. Description of the invention (12) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Figure 13 is a section of the floor tool showing an approximate mapping of the pressure existing in the tool. A denser shadow indicates a lower Area of stress. 14A and 14B show the effect of using a floor tool on a surface. These figures show a plan view of a floor tool moving in the direction X across the floor surface. A low pressure area is maintained in the skirt area of the tool, near the floor surface. Therefore, any dust located in this area will be brought to the suction inlet 256. A steady stream of air enters the tool through the suction inlet 260. This air flow helps maintain good separation efficiency in the vacuum cleaner's separation system (11 in Figure 1) and is especially important for cyclonic separation systems, such as those using a set of parallel cyclone 10 separators. The air flow through the channel 260 and the space between the channel 260 and the floor surface helps pick up any large debris from the floor surface. Otherwise 'this fragment will be pushed by the skirt 270 along the floor. The continuous skirt 270 maintains a low pressure region in the tool. This also helps provide a good picking effect from the cracks 300 on the floor surface. As shown in Fig. 14B, when the tool 15 moves over a crack, the low-pressure region within the tool is connected to one of the surrounding pressure regions outside the tool via the crack 300. As a result, air flows from the outside of the tool through the crack 300 and reaches the low-pressure area inside the tool to carry any dust and debris from the crack 300 with an air flow. Figures I5 and I6 show an alternative embodiment of the floor tool. As in the previous embodiment, the tool can be operated from both the carpet cleaning mode and the hard floor cleaning mode. Moreover, when in the hard floor cleaning mode, the suction channel 455 is provided outside the skirt of the suction opening for collecting large debris. The difference between this tool and the previous example is that the suction channel loose is provided by the bottom plate 450 itself. In the example described above, the bottom plate 25 is located in the main sound suction opening, and -14- A7 B7 200302706 V. Description of the invention ( Π) Can be retracted to allow air to flow into the suction opening. In this embodiment, the skirt-shaped suction opening 470 for the carpet cleaning mode can be moved between the retracted position (as shown in FIG. 15) and the deployed position (as shown in FIG. 16). The skirt-shaped suction opening 470 is supported by an arm 420, which is long enough so that the skirt-shaped suction opening 470 is closer to the floor surface than the bottom plate 450 when it enters the deployed position, that is, the bottom plate 450 is lifted above the floor surface. The chassis of the tool has a valve, such as a cartridge valve mechanism, which seals the entrance of the skirt-shaped suction opening / mouth 470 in the carpet cleaning mode. During hard floor cleaning, the suction channel 455 of the bottom plate 450 performs the same function as the suction channel 260 in the previous embodiment. 10 That is, it provides a downward suction opening for collecting debris, otherwise, the debris will be removed by the skirt of the tool The shaped suction opening 470 is pushed. Moreover, the skirt-shaped suction opening 470 provides good pick-up performance on cracks when having a continuous skirt. Figures 17 and 18 show another alternative embodiment of the floor tool. This is a tool for hard floors only. Like the previously shown tool, the tool 15 500 has a suction opening 555 surrounded by a skirt 570. It also has a suction opening 560 printed on the front of the tool by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, which is located outside the skirt area. Therefore, a good suction effect is achieved in the skirt area 555, and large debris can also be removed from the floor through the opening 560 ·. The tool differs from the tool shown in the previous embodiment in that it is not used on a carpeted floor. 20 The above embodiments are all about floor tools that can be fitted to a cleaning rod. However, the characteristics of the secondary suction opening located outside the primary suction opening can be applied to an upright type cleaner. FIG. 19 shows the cleaner head assembly 600 of the upright cleaner. The cleaner head assembly 600 has a cleaner head body 610 and a wiper housing 620. Pivot installation to the brush housing 620 -15-

200302706 A7 B7 5. The invention description (M) is on the front part of the cleaner head body 610. A suction opening 655 is formed in the lower surface of the wiper housing 620 and extends across the entire width of the wiper housing 620. A brush lever 630 is rotatably installed in the scraper housing 620, so that the bristles of the brush lever 630 are slightly protruded from the suction opening 655. The brush lever 630 5 is configured to be driven in a conventional manner, for example, by a driving belt, by a motor of a vacuum cleaner. The wiper housing 620 has an air outlet 625 for connecting the wiper housing 620 to the air inlet 635 on the main body of the vacuum cleaner. The wiper housing 620 has a secondary air 10 inlet on the front face of the housing 62 660. The secondary inlet is in the form of a bumper which protrudes forward from the housing 62 and has a downwardly extending opening facing the floor. In use, air and debris from the floor surface are carried through the secondary inlet 660 through a hole in the front wall of the wiper housing 620 and into the wiper housing 620. The secondary inlet may be located exactly at the front edge of the cleaner head, or it may be located at one or more of the front, rear, and sides of the cleaner head. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Figure 20-22 shows another modification of the flooring tool, in which the amount of air flowing into the tool can be controlled manually. Fig. 20 shows a modified form 25 of the employment plate 250 which has been described in the previous floor tool. As before, each side of the main suction channel 255 of the tool has an inlet hole 290. In use, during the carpet cleaning mode, air can flow into the suction channel 255 through the inlet aperture 290. In this modified base plate, a valve 295 is fitted on the side of the base plate.阙 Can be moved between the open position as shown in Figure 21 and the closed position as tf shown in Figure 22 'In the open position, the maximum amount of air can flow into the suction channel 255, and in the closed position, the smaller amount of air Can -16- The secret secretary Tanluo Tiantian was exchanged for face-lifted gold ------- 〇 丨 π V 007 Hachiman, 200302706 Α7 Β7 V. Description of the invention (15) Inflow suction channel 255. The valve can be manually slid between the two positions in direction 299. A pair of recesses 296 above the bottom plate cooperate with small protrusions (not shown) on the underside of the valve to allow the valve to be positively supported in each of the two positions. The bottom plate 250 is modified from the bottom plate 250, and an additional air inlet 292 is located above the bottom plate. A similar entrance 292 is located on each side of the floor. As can be seen in Figures 21 and 22, the valve seals the inlet 292 in the closed position. In use, the user can set the valve 295 on each side of the bottom plate to the same position (for example, two valves open) or different positions (that is, one valve opens 10 to open, one valve closes) to choose flowing air and They feel happy pushing the amount of resistance. The amount of pushing resistance varies depending on the floor covering, and different users prefer different amounts of pushing resistance. In yet another modification, the valves 295 may be configured so that they provide a wider range of settings. This can be achieved by an entrance 15 290 that changes its height in direction 299 and a valve printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, which can be located in a larger number of locations (eg, three different locations). The valve can be applied to a floor tool such as that shown here, or to a cleaning head of an upright vacuum cleaner of the type shown in FIG. In the closed position, the valve can be configured to allow a small amount of flowing air (as shown in Figure 22) or no flowing air at all. 20 Schematic component code description Component code name 10 Main body 11 Separation equipment 15 Hose -17- Office of Narita Shitou special recruit, vOCT7 Hachiman 200302706 A7 B7 V. Description of invention (16) Intellectual Property Bureau, Ministry of Economic Affairs Printed by the staff consumer cooperative 16 poles 17 distal 20 cleaning tools 200 tools 210 main chassis 221 wheels 222 short shafts 223 wheels 230 connecting arms 231 connecting pieces 232 connecting pieces 232 pivot axis 233 pile 1 234 connecting assembly 234a middle arm 234b Middle arm 235 Hose 240 Rod connector 241 Button 242 Stopper 247 Pivot 250 Base plate 250, bottom plate 252 front working edge 253 rear working edge 254 suction channel 254a flat surface 254b flat surface 255 suction channel 256 suction Inlet 256 _l, _____________________— Air inlet -18- 200302706 A7 B7 V. Description of the invention (17) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs? 58 Ciliary Picker 259 Ciliary Picker 260 Suction Channel 262 Catheter 265 Buffer 269 debris 270 skirt 280 flange 290 inlet aperture 292 air in Port 295 valve 296 recess 299 direction 300 crack 420 arm 450 base plate 455 suction channel 470 skirt suction opening 500 tool 555 suction opening 560 suction opening 570 skirt 600, cleaner head assembly 610 cleaner head body 620 wiper housing 625 air outlet 630 brush rod 635 air inlet 655 suction opening 660 secondary air inlet -19- Shitian Shitian closed to change who AJiB therefore / quot; ^ ΙΠν 007 people \ sample,

Claims (1)

200302706 A8 Βδ C8 Install tr! I I! I I i 200302706 -—— ^ 一 __ 猱 — VI. Patent application ^ —- The part is farther away from the floor, and in the working position, it is closer to the floor. The dagger is located on the cleaning head wider than the skirt 6 in any of the aforementioned patent applications. The suction opening extends over the entire width of the cleaning head. In the first 5 7. The clear head in the form of any one of the aforementioned patent applications is a floor cleaning tool for a vacuum cleaner ... The cleaner 8 is used for cleaning in any of the patent application scope 15-6 Head The form of the π clean head is used for cleaning the upright vacuum cleaner. The head. 9. A cleansing head substantially as described herein with reference to the accompanying drawings. --- Install --- (Please read the precautions on the back before filling out this page} 0.% Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs