WO2017157622A2 - Système de tubes - Google Patents

Système de tubes Download PDF

Info

Publication number
WO2017157622A2
WO2017157622A2 PCT/EP2017/053876 EP2017053876W WO2017157622A2 WO 2017157622 A2 WO2017157622 A2 WO 2017157622A2 EP 2017053876 W EP2017053876 W EP 2017053876W WO 2017157622 A2 WO2017157622 A2 WO 2017157622A2
Authority
WO
WIPO (PCT)
Prior art keywords
pipe system
sauginnenrohr
tube
inner tube
suction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2017/053876
Other languages
German (de)
English (en)
Other versions
WO2017157622A3 (fr
Inventor
Martin Cordes
Stephan Cordes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fischer Rohrtechnik GmbH
Original Assignee
Fischer Rohrtechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fischer Rohrtechnik GmbH filed Critical Fischer Rohrtechnik GmbH
Publication of WO2017157622A2 publication Critical patent/WO2017157622A2/fr
Publication of WO2017157622A3 publication Critical patent/WO2017157622A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • A47L9/246—Hose or pipe couplings with electrical connectors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/248—Parts, details or accessories of hoses or pipes

Definitions

  • the invention relates to a pipe system for a vacuum cleaner, with a Hüllaußenrohr and a Sauginnenrohr, wherein the Sauginnenrohr has a smaller cross-section than the Hüllaußenrohr, so that the Hgglaußenrohr and the Sauginnenrohr form at least one Hüllkanal.
  • the present invention is therefore an object of the invention to provide a pipe system for a vacuum cleaner, which reduces the loss of suction by the suction of secondary air and provides a sufficiently high stability.
  • the envelope channel or the envelope channel segments can be used in different ways.
  • a cable is guided in at least one segment of the sheath duct.
  • the leadership of the cable in the Hüllkanal favors the flow characteristics of a vacuum cleaner suction tube, since no vortex generating elements in the flow channel or suction, ie the part of the vacuum cleaner suction pipe, is sucked through the air mainly air, are present.
  • the Hüllkanalsegment also several cables can be arranged. It is also conceivable that the other Hüllkanalsegmente serve as a cable channel or as a guide for another device.
  • the segment of the Hüllkanals, in which the cable is guided is designed such that the cable is fixed radially or tangentially with respect to the suction inner tube.
  • the cable is fixed by the inner wall of the outer tube and the outer wall of the inner tube.
  • the cable is fixed by two radial webs.
  • the segment of the sheath channel can also be designed so that the guided in it cable is fixed both radially and tangentially with respect to the suction inner tube. The radial webs can therefore be brought so close to the cable that the cable no margin for movements in the tangential direction remains.
  • outer shell tube and suction inner tube may be so far apart in the area that the cable rests both on the outside of the Sauginnenrohrs and on the inside of Hüllaußenrohrs.
  • Limiting the range of motion of a cable is advantageous in that the cable is consistently held in a particular position and there is no possibility that the cable will suffer cable breakage due to confusion or kinking.
  • the radial webs have the same dimensions, so that outer envelope tube and Sauginnenrohr are arranged concentrically. By this arrangement, the cross sections of the outer envelope tube and the Sauginnenrohrs have the same centers. The radial webs lead to a uniform support of the Sauginnenrohrs in Hüllaußenrohr.
  • the radial webs are configured such that the cross sections of the outer shell pipe and the inner suction pipe have different center points.
  • the less high the radial webs of the Sauginnenrohrs are formed the smaller the distance between Hüllaußenrohr and Sauginnenrohr at this point, whereby although the segments of the Hüllkanals are smaller, but the suction channel, which is formed by the free cross section of the Sauginnenrohrs, becomes larger.
  • a circular suction channel is not absolutely necessary, as long as the radial webs of the Sauginnenrohrs map the contour of Hüllaußenrohrs, the suction channel can take any fluid-technically useful form. Accordingly, the segments of the Hüllkanals can be configured arbitrarily. Should it be necessary for a comparatively thick cable, with a correspondingly large cross-section, to be guided in the sheath channel, the segments in the region of the sheath channel can be made correspondingly large, whereas other segments of the sheath channel have smaller dimensions. In a circular cross-section of Hüllaußenrohr and Sauginnenrohr the Sauginnenrohr is shifted in the Hüllaußenrohr accordingly so that the cross sections of Hüllaußenrohr and Sauginnenrohr not have the same center.
  • the outer envelope tube made of metal and the Sauginnenrohr consist of a plastic.
  • the outer envelope tube can be made of a robust material because it is in direct contact with the environment.
  • the suction inner tube may be formed of a flexible plastic, so that a frictional engagement between Hüllaußenrohr and Sauginnenrohr can be realized more easily. Due to the choice of materials, the NEN side of the pipe system, so the inside of the Sauginnenrohrs and the outside of the pipe system, ie the outside of the outer shell of the outer tube, are adapted to the respective requirements.
  • a plastic also increases the sliding properties, if further components are provided, which are slidably connected to the Sauginnenrohr.
  • an end sleeve is provided at at least one end of the outer shell tube and the inner tube, which engages in the suction inner tube.
  • further connections can be provided on the end sleeve.
  • electrical connectors are provided in the ferrule, which are connected to a cable in the sheath duct.
  • the ferrule has a conical portion, wherein the smallest cross section of the conical portion has a smaller diameter than the diameter of the Sauginnenrohrs and wherein the largest cross section of the conical portion has a larger diameter than the diameter having the Sauginnenrohrs.
  • At least the conical region of the end sleeve is made of a plastic is made. Due to the configuration of the conical region made of a plastic, the end sleeve can deform plastically or elastically, for example, from the point at which the friction is too great for further insertion into the suction inner tube. In this way, a positive connection between the two components can be achieved by a tight connection is made.
  • the end sleeve can not be inserted too far into the outer tube, it is provided in a further advantageous embodiment of the pipe system that at least one stop is provided on the end sleeve.
  • the stopper can only cover a small area or several small areas of the outer end of the end sleeve.
  • the stop can also be formed by an increase in the outer diameter of the ferrule. The stop is thus formed circumferentially.
  • the stop may for example also be designed such that the material is bent in the region of the enlarged outer diameter by a directed to the Sauginnenrohr gutter. The end sleeve thus does not strike only at the end of the Sauginnenrohres or the Hüllaußenrohres, but encloses the end of the two tubes.
  • the ends of the outer envelope tube can be sharp-edged.
  • the gutter shape of the stop covers the sharp edge, minimizing the risk of injury.
  • the material in the region of the increased outer diameter does not have to be the same material from which the remainder of the end sleeve is made.
  • a foam or rubber compound can additionally increase the tightness at the end of the tubes and accordingly also further reduce the risk of injury since the material is softer than conventional plastics.
  • Fig. 1 is a schematic representation of a pipe system with radial
  • 2 is a schematic representation of a pipe system with a guided cable
  • 3 is a schematic representation of a pipe system with different centers of the individual tubes
  • FIG. 4 is a schematic representation of the cross section of a pipe system with an angular outer envelope pipe
  • Fig. 5 is a schematic representation of the cross section of a pipe system with a star-shaped suction inner tube
  • Fig. 6 is a schematic representation of a longitudinal section of a pipe system with an inserted end sleeve.
  • FIG. 1 shows the cross-section of a pipe system 1 with an outer shell pipe 2 and a suction inner pipe 3.
  • the outer shell pipe 2 has a larger diameter D H than the Sauginnenrohr 3.
  • a Hüllkanal 4 between Hüllaußenrohr 2 and Sauginnenrohr 3 is formed.
  • 3 radial webs 6 are formed on the outer side 5 of the Sauginnenrohrs.
  • the radial webs all have the same dimensions, so that the outer shell tube 2 and the inner suction tube 3 are arranged concentrically with one another.
  • the centers M H of Hüllaußenrohrs and M s of Sauginnenrohrs are identical.
  • Hüllaußenrohr 2 and suction inner tube 3 are frictionally connected with each other.
  • the radial webs 6 divide the sheath channel 4 in Hüllkanalsegmente. 7
  • FIG. 2 shows the cross section of a pipe system 1 according to FIG. 1.
  • a cable 8 is guided in a Hüllkanalsegment 7.
  • two radial webs 6 are arranged closer in this direction in the direction of the cable 8, so that the Hüllkanalsegment 7 in the area in which the cable 8 is guided, is significantly smaller than the remaining Hüllkanalsegmente. 7 ,
  • Fig. 3 shows schematically the structure of another embodiment of a pipe system 1 with a Hüllaußenrohr 2 and a Sauginnenrohr 3.
  • the radial webs 6 have different dimensions in this embodiment.
  • the suction inner tube 3 is offset within the outer shell tube 2 such that the centers M H of Hüllaußenrohrs 2 and Ms of the Sauginnenrohrs 3 are offset from each other. Due to the different dimensions of the radial webs 6 and the size of the Hüllkanalseg- 7 different. In this way, the size of Hüllkanalsegmente 7 can be easily adapted to the desired requirements.
  • a relatively thick cable 8 in the Hüllkanalsegment 7 is arranged.
  • the outer shell tube 2 and the Sauginnenrohr 2 are so far apart that the cable 8 rests in each case on the inner side 9 of the outer shell tube 2 and on the outer side 5 of the Sauginnenrohres 3.
  • two of the radial webs 6 are oriented on the cable 8, that the cable 8 abuts both radial webs 6. In this way, the cable 8 no margin for a radial movement, since it is blocked in this direction by both the outer shell tube 2 and the Sauginnenrohr 3.
  • a tangential movement of the cable 8 is blocked by the radial webs 6.
  • FIGS. 4 and 5 show further possible embodiments of a pipe system 1 with a suction inner tube 3 and an outer envelope tube 2.
  • the outer envelope tube 2 is designed in a square shape, wherein the inner suction tube 3 has a round cross section.
  • the radial webs are formed corresponding to the inner contour of the outer shell tube 2 on the outer side 5 of the Sauginnenrohrs 3.
  • the suction inner tube 3 is thus frictionally connected to the outer envelope tube 2, although the cross sections of Hüllau- - - itzrohr 2 and Sauginnenrohr 3 are completely different. Accordingly, the size and shape of Hüllkanalsegmente 7 differ greatly from each other.
  • the radial webs 6 can still be designed such that the size of a Hüllkanalsegments 7 corresponds to the desired requirements.
  • a cable 8 is arranged in an envelope channel 7 by way of example. The cable 8 remains due to the design of the radial webs 6 in the vicinity of the cable 8 only little margin to perform movements. In this way, it is almost impossible for the cable to be buckled in this area and the cable 8 to suffer a resulting cable break.
  • 5 shows a pipe system 1 with a square outside outer tube 2 and a star-shaped suction inner tube 3. This embodiment is intended to make clear that the two tubes can assume any desired shapes.
  • the radial webs 6 ensure that the tubes can still be accurately connected to each other. Fig.
  • FIG. 6 shows a schematic representation of the longitudinal section of a pipe system 1, wherein at one end 10 of outer shell tube 2 and suction inner tube 3, an end sleeve 11 is arranged.
  • the end sleeve has a conical region 12, wherein the smallest cross section 13 of the conical region 12 has a smaller diameter than the diameter of the suction inner tube 3 and wherein the largest cross section 14 of the conical region 12 has a larger diameter than the diameter of the suction inner tube 3.
  • the conical region 12 offers the advantage that a tight connection between the end sleeve 11 and the suction inner tube 3 can be produced.
  • the conical portion 12 of the ferrule 11 is made of a plastic.
  • the ferrule 11 can be inserted so far into the suction inner tube 3 until it deforms elastically or plastically. As a result, the tightness of the connection between the end sleeve 11 and the inner tube 3 is further increased.
  • a stop 15 is additionally formed. The stop 15 serves to ensure that the end sleeve 11 can not be inserted too far into the suction inner tube 3.
  • further connection options may be formed, for example, a plug for a likewise not shown in FIG. 6 cable, which is guided in a Hüllkanalsegment and at the end 10 of the Hüllaußenrohrs 2 and Sauginnenrohrs 3 emerges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Electric Cable Installation (AREA)

Abstract

L'invention concerne un système de tubes (1) conçu pour un aspirateur, ledit système comprenant un tube extérieur d'enveloppe (2) et un tube intérieur d'aspiration (3), le tube intérieur d'aspiration (3) comprenant une section transversale plus petite que le tube extérieur d'enveloppe (2) de façon à ce que le tube extérieur d'enveloppe (2) et le tube intérieur d'aspiration (3) forment au moins un canal d'enveloppe (4). Un système de tubes (1) qui réduit la perte de force d'aspiration en aspirant l'air secondaire et en offrant une stabilité suffisamment élevée est caractérisé en ce que : plusieurs traverses radiales (6) sont formées sur la face extérieure (5) du tube intérieur d'aspiration (3), lesquelles permettent d'espacer le tube intérieur d'aspiration (3) du tube extérieur d'enveloppe (2) ; et le canal d'enveloppe (4) est segmenté par les traverses radiales (6).
PCT/EP2017/053876 2016-03-12 2017-02-21 Système de tubes Ceased WO2017157622A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016104558.6A DE102016104558B4 (de) 2016-03-12 2016-03-12 Rohrsystem
DE102016104558.6 2016-03-12

Publications (2)

Publication Number Publication Date
WO2017157622A2 true WO2017157622A2 (fr) 2017-09-21
WO2017157622A3 WO2017157622A3 (fr) 2017-11-09

Family

ID=58185501

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/053876 Ceased WO2017157622A2 (fr) 2016-03-12 2017-02-21 Système de tubes

Country Status (2)

Country Link
DE (1) DE102016104558B4 (fr)
WO (1) WO2017157622A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114451842A (zh) * 2021-12-15 2022-05-10 未拓智能科技(苏州)有限公司 一种连接管道、接口组件及清洁设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3705292C1 (de) * 1987-02-19 1988-07-21 Vohran Patentverwertungs Gmbh Flexibler Schlauch
ITPD960154A1 (it) * 1996-06-12 1997-12-12 Lindhaus Srl Struttura di prolunga tubolare telescopica particolarmente per elettro domestici e macchine per la pulizia in genere
KR100366671B1 (ko) * 1997-12-24 2003-01-14 도시바테크 가부시키가이샤 전기청소기
JP4721980B2 (ja) * 2006-08-04 2011-07-13 三菱電機株式会社 電気掃除機
DE102009021596B4 (de) * 2009-05-15 2011-04-28 Fischer Rohrtechnik Gmbh Teleskopierbares Rohrsystem für einen Staubsauger
CN102188210A (zh) * 2010-03-09 2011-09-21 乐金电子(天津)电器有限公司 充气式直管
DE102013017075A1 (de) * 2013-10-15 2015-04-16 Festool Gmbh Saugschlauch für einen Staubsauger und damit ausgestattetes System
DE102013020687A1 (de) * 2013-12-04 2015-06-11 Festool Gmbh Saugschlauch für einen Staubsauger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114451842A (zh) * 2021-12-15 2022-05-10 未拓智能科技(苏州)有限公司 一种连接管道、接口组件及清洁设备

Also Published As

Publication number Publication date
WO2017157622A3 (fr) 2017-11-09
DE102016104558B4 (de) 2022-07-07
DE102016104558A1 (de) 2017-09-14

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