WO2000053074A1 - Tuyau telescopique pour aspirateur - Google Patents

Tuyau telescopique pour aspirateur Download PDF

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Publication number
WO2000053074A1
WO2000053074A1 PCT/KR1999/000366 KR9900366W WO0053074A1 WO 2000053074 A1 WO2000053074 A1 WO 2000053074A1 KR 9900366 W KR9900366 W KR 9900366W WO 0053074 A1 WO0053074 A1 WO 0053074A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
stopper
locking
lever body
lever
Prior art date
Application number
PCT/KR1999/000366
Other languages
English (en)
Inventor
Seoung-Gon Kim
Original Assignee
Kwang Dong Precision Co., Ltd.
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 Kwang Dong Precision Co., Ltd. filed Critical Kwang Dong Precision Co., Ltd.
Priority to AU45331/99A priority Critical patent/AU4533199A/en
Publication of WO2000053074A1 publication Critical patent/WO2000053074A1/fr

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
    • A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes

Definitions

  • the present invention relates to a telescoping pipe for a vacuum cleaner, and more particularly to a telescoping pipe for a vacuum cleaner which is easily assembled and disassembled, and is easily adjusted lengthwise by a simple device, resulting in a decreased number of manufacturing processes and performance troubles.
  • a vacuum cleaner is to remove foreign substances such as dusts, etc. through a suctioning operation.
  • a vacuum cleaner has a telescoping pipe which is adjustable lengthwise.
  • a conventional telescoping pipe however, has a disadvantage in that the same includes several connecting sections which are formed to be connected to each other simply. Accordingly, a user has to connect his predetermined number of connecting sections in order to adjust the length of the telescoping pipe. Due to such a structure, the user sometimes may not adjust the length of the telescoping pipe precisely as he wants, and he has an inconvenience while assembling and disassembling the telescoping pipe as well as using the same.
  • Employing additional parts has a drawback in that the same requires locking and unlocking means of rather complex structure which are the main causes of performance troubles .
  • Such a problem may be partly solved by a metal telescoping pipe for a vacuum cleaner, which is disclosed in the Korean Utility Model Application No. 98-2366 by the same Applicant.
  • such a telescoping pipe 100 includes an inner pipe 200 on which a plurality of locking recesses 200a are formed at a predetermined distance lengthwise, a lever body 400 to be fixedly connected with the inner pipe 200 by having a stopper 400a protruding from an end of the lever body 400 to be locked in any one of the locking recesses 200a, and a pair of locking projections 400b with rounded edges formed on either side of the stopper 400a, an outer pipe 900 to be connected to the lever body 400 in a manner that the outer pipe 900 does not cover the locking projections 400b of the lever body 400 by having an expand fixing portion 850, and a stopper escaping opening 830 formed on an end of the expand fixing portion 850 for permitting the stopper 400a of the lever body 400 to protrude therethrough, and a rotatable lever 600 to be connected with an end of the expand fixing portion 850 by having a pair of locking openings 520 formed on an end
  • the user in order to adjust the length of the telescoping pipe 600, the user has to grab the lever 600, forcibly rotate the lever 600 in one direction, pull the outer pipe 900 from the inner pipe 200 in a predetermined direction, and then forcibly rotate the lever 600 in an opposite direction.
  • the present invention has been developed to overcome the above problems of the prior art, and accordingly, it is an object of the present invention to provide a telescoping pipe for a vacuum cleaner whose length is easily adjusted by a simple adjusting device, resulting in a decreased number of assembling processes and performance troubles.
  • a telescoping pipe for a vacuum cleaner including: an inner pipe having a plurality of locking recesses formed on the inner pipe spaced from each other at a predetermined distance, and a guide groove formed on the inner pipe to interconnect respective ends of the locking recesses; an outer pipe formed to be fitted to the inner pipe in a lengthwise direction, the outer pipe having a connecting portion formed with an air-hole, supporting long holes formed at both sides of the air-hole, and a locking slot formed opposite to the air-hole; a lever body having a guide projection protruding from an inner circumference of the lever body to be inserted and guided in the guide groove of the inner pipe when the lever body is moved in a lengthwise direction, a first fitting groove formed on an outer circumference of the lever body, a guide rail provided with a locking jaw on a periphery thereof, and a locking portion formed on the outer circumference of the lever body to be locked in any one of the locking recesses thereby enabling the lever body to be connected with the
  • the packing includes an elastic horn-shape blade for sealing between the inner and outer pipes by being tightly fitted in the inner circumference of the outer pipe, and an assembling portion protruding from an inner side of the packing to be fitted in the guide groove of the inner pipe.
  • the horn-shape blade is formed in the ring-shape formed on a side of the packing.
  • FIG. 1 is an exploded perspective view of a conventional telescoping pipe for a vacuum cleaner
  • FIG. 2 is a longitudinal section for showing the telescoping pipe for a vacuum cleaner of FIG. 1 being assembled
  • FIG. 3 is an exploded perspective view of a telescoping pipe for a vacuum cleaner according to the present invention.
  • FIG. 4 is a sectional view for showing a main portion of a lever and a stopper shown in FIG. 3, wherein FIGS. 4A and 4B are sectional views taken on line A- A and B-B of FIG. 3, respectively; and
  • FIG. 5 is a longitudinal section for showing the telescoping pipe for a vacuum cleaner shown in FIG. 3 being connected and operated, wherein FIGS. 5 A and 5B are longitudinal sections for showing the state of the telescoping pipe before and after the operation, respectively.
  • the telescoping pipe includes an inner pipe 10, an outer pipe 20, a lever body 30 connected to the inner pipe 10, a stopper 50 connected with the lever body 30, an elastic member 60 disposed between the stopper 50 and the lever body 30, a packing 70 disposed on the inner pipe 10 to seal between the inner and outer pipes 10 and 20, and a lever 40 connected to the stopper 50 after being passed through the outer pipe 20.
  • a guide groove 1 1 is formed to interconnect respective ends of the locking recesses 12
  • the outer pipe 20 is formed to be fitted to the inner pipe 10 in lengthwise direction, and includes a connecting portion 22 having an air-hole 21 formed on an end of the outer pipe 20, support long holes 23 formed on the outer pipe 20 formed at both sides of the airhole 21 , and a locking slot 24 formed opposite to the air-hole 21
  • the lever body 30 includes a guide projection 33 protruding from the inner circumference of the lever body 30 to enable the lever body 30 to be fitted to the inner pipe 10 along the guide groove 11 in a lengthwise direction, a first fitting groove 32 formed on the outer circumference of the lever body 30, a guide rail 31 formed with a locking jaw 35 on a periphery thereof, and a locking portion 34 to be fitted in the locking slot 24 of the outer pipe 20 so as to enable the lever body 30 to be connected with the outer pipe 20.
  • the stopper 50 includes locking steps 54 formed on both inner sides of the stopper 50 for enabling the stopper 50 to be seated and moved on the locking jaw 35 of the guide rail 31 , a locking part 53 protruding from the inner side of the stopper 50 to be locked in any one of the locking recess 12 of the inner pipe 10, a second fitting groove 51 formed on the outer side of the stopper 50, a square-shaped hole 52 formed on the other outer side of the stopper 50, and a pair of elevations 55 formed on both inner walls of the square-shaped hole 52.
  • the elastic member 60 applies an elastic force to the stopper 50 as one and other ends thereof are connected with the first fitting groove 32 of the lever body 30 connected with the inner pipe 10 and the second fitting groove 51 of the stopper 50 connected with the guide rail 31 of the lever body 30, respectively.
  • the elastic member 60 is a tension spring.
  • the packing 70 is force-fitted to one end of the inner pipe 10 so as to seal between the inner and outer pipes 10 and 20.
  • the packing 70 includes a horn-shape blade 71 formed on one end of the packing 70 to be closely fitted in the inner circumference of the outer pipe 20, and an assembling portion 72 protruding from the inner side thereof to be fitted in the guide groove 11 of the inner pipe 10.
  • the horn-shape blade 71 formed in a ring-shape.
  • the lever 40 includes a pair of locking projections 41 protruding from the inner side of the lever to be inserted through the air-hole 21 of the outer pipe 20 and fixedly locked into the elevations 55 which are formed on the square-shaped hole 52, and supporting projections 42 formed at both sides of the respective locking projections 41 to be inserted and guided in the supporting long holes 23 of the outer pipe 20.
  • the lever body 30 is connected with the inner pipe 10, in a manner that the guide projection 33 is inserted in the guide groove 1 1 of the inner pipe 10.
  • the packing 70 is force-fitted to the one end of the inner pipe 10. It is preferable that the packing 70 is force- fitted while the assembling portion 72 thereof is inserted in the guide groove 11. Also, it is preferable that a plurality of ring projections or the connecting projections are formed on the fitting area of the packing 70 to prevent the separation of the packing 70 from the inner pipe 10.
  • the stopper 50 When the lever body 30 and the packing 70 are fitted to the inner pipe 10, the stopper 50 is inserted and attached to the guide rail of the lever body 30. In such a situation, the locking step 54 formed on both inner sides of the stopper 50 are seated on the locking jaw 35 of the guide rail 31 , and the locking part 53 is locked in any of locking recesses 12.
  • the inner pipe 10 is inserted and fitted in the outer pipe 20, in a manner that the connecting area of the lever body 30 and the stopper 50 are aligned with the connecting portion 22 of the outer pipe 20.
  • the square-shaped hole 52 of the stopper 50 and the air-hole 21 formed on the connecting portion 22 are aligned to each other, so that the square-shaped hole 52 could be exposed through the air-hole 21.
  • the locking portion 34 of the lever body 30 is locked in the locking slot 24 which is formed on the outer pipe 20.
  • the inner pipe 10 can be moved within the lever body 30, while the lever body 30 and the outer pipe 20 are fixed to each other.
  • the locking projections 41 of the lever 40 are inserted into the air-hole 21 , and are locked with the elevations 55 formed on the square-shaped hole 52 of the stopper 50.
  • the supporting projections 42 of the lever 40 are simultaneously inserted into the supporting long holes 23. In such a situation, the locking projections 41 are forced from each other and the locking pins are locked in the elevations 55.
  • FIG. 5 A shows an initial state that the respective elements are assembled according to the present invention.
  • the stopper 50 is biased in the direction of arrow C by the tension force of the elastic member 60. Accordingly, the locking part 53 of the stopper 50 is kept being seated on the locking recess 12 of the inner pipe 10, so that the movement of the inner and outer pipes 10 and 20, i.e. , the length adjustment of the telescoping pipe 90 is prevented.
  • the lever 40 is connected to the stopper 50 of the lever body
  • the user first pulls the lever 40 in the direction indicated by the arrow D in FIG. 5B in order to move the inner pipe 10, thereby adjusting the length of the telescoping pipe 90.
  • the elastic member 60 whose one end is fixed at the first fitting groove 32 of the lever body, is extended, so that the locking part 53 is separated from the locking recess 12 of the inner pipe 10, and the stopper 50 is moved in the direction of the arrow D. Accordingly, the inner pipe 10 is enabled to be moved in the lengthwise direction.
  • the packing 70 which is fitted in one end of the inner pipe 10, prevents a leakage of foreign substances such as dusts, or the like, through the connecting area of the inner and outer pipes 10 and 20. More specifically, since the horn-shape blade 71 , which is in the shape of the ring and formed on the end of the packing 70, has a elasticity, when the inner pipe 10 is moved, the horn-shape blade 71 is tightly attached to the inner circumference of the outer pipe 20 so that the leakage is prevented.
  • the user withdraws the force for pulling the lever 40. Accordingly, the lever 40 and the stopper 50 are returned to their initial state by the tension force of the elastic member 60, and are inserted, and locked in the corresponding locking recess 12 which is aligned to the locking part 53. More specifically, as the user stops pulling the lever 40, the lever 40 is moved in the direction of arrow E in FIG. 5B by the tension force of the elastic member 60, and accordingly, the locking part 53 of the stopper 50 is moved along the guide rail 31 of the lever body 30 to be locked in the corresponding locking recess 12 of the inner pipe 10. As a result, the movement of the inner pipe 10 is prevented. In other words, by simply operating the lever 40 alone, the user may move the inner pipe 10, so that he may conveniently adjust the length of the telescoping pipe 90.
  • the telescoping pipe according to the present invention includes the lever body inserted in the inner pipe, thereby being fitted in the outer pipe, a stopper connected to the lever body to be guided and locked in the guide groove and any one of the locking recesses, respectively, the elastic member for applying the tension force to the stopper, and the lever tor moving the stopper According to this, the length of the telescoping pipe for the vacuum cleaner can be easily adjusted with the adjusting device of the simple structure so that the construction thereof is simplified and the user may conveniently use the same While the present invention has been particularly shown and described with reference to the preferred embodiment thereof it will be understood by those skilled in the art that various changes in form and details may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims

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

Abstract

Un tuyau téléscopique comporte un tuyau intérieur (10) présentant une rainure de guidage (11) et plusieurs évidements de blocage (12), un tuyau extérieur (20), un corps de levier (30) inséré dans le tuyau intérieur (10), solidaire du tuyau intérieur (20), un élément d'arrêt (50) accouplé au corps de levier (30), destiné à être guidé et bloqué respectivement dans la rainure de guidage (11) et les évidements de blocage (12), un élément élastique (60) pour l'application de la force de tension sur l'élément d'arrêt (50), et un levier (40) pour déplacer l'élément d'arrêt (50). Ainsi, la longueur du tuyau téléscopique pour aspirateur peut être réglée facilement à l'aide du dispositif de réglage de structure simple, la construction de ce dernier est simplifiée et sont utilisation est aisée.
PCT/KR1999/000366 1999-03-05 1999-07-08 Tuyau telescopique pour aspirateur WO2000053074A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45331/99A AU4533199A (en) 1999-03-05 1999-07-08 A telescoping pipe for a vacuum cleaner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2019990003459U KR200232204Y1 (ko) 1999-03-05 1999-03-05 진공청소기용 연장관
KR1999/3459U 1999-03-05

Publications (1)

Publication Number Publication Date
WO2000053074A1 true WO2000053074A1 (fr) 2000-09-14

Family

ID=19573128

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1999/000366 WO2000053074A1 (fr) 1999-03-05 1999-07-08 Tuyau telescopique pour aspirateur

Country Status (3)

Country Link
KR (1) KR200232204Y1 (fr)
AU (1) AU4533199A (fr)
WO (1) WO2000053074A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2877561A1 (fr) * 2004-11-05 2006-05-12 Groupe Aubret Soc Par Actions Lance d'aspiration
WO2007030979A1 (fr) * 2005-09-16 2007-03-22 Yonglong Wu Tube d'aspiration de poussiere telescopique dans un aspirateur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020011675A (ko) * 2000-08-03 2002-02-09 윤해숙 진공청소기 연장관의 길이조절장치
KR200449273Y1 (ko) * 2008-06-17 2010-07-01 강혁 조립식 선반 설치용 홀더
KR101435009B1 (ko) * 2012-09-26 2014-10-20 주식회사 와이에스테크 회전식 파이프 길이조절장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB818659A (en) * 1956-10-08 1959-08-19 Hoover Ltd Improvements relating to telescopic tube assemblies
US3351359A (en) * 1964-12-23 1967-11-07 Electrolux Corp Adjustable length wand
US5836620A (en) * 1996-09-10 1998-11-17 Kinergy Industrial Co., Ltd. Telescopic extension wand for vacuum cleaner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB818659A (en) * 1956-10-08 1959-08-19 Hoover Ltd Improvements relating to telescopic tube assemblies
US3351359A (en) * 1964-12-23 1967-11-07 Electrolux Corp Adjustable length wand
US5836620A (en) * 1996-09-10 1998-11-17 Kinergy Industrial Co., Ltd. Telescopic extension wand for vacuum cleaner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2877561A1 (fr) * 2004-11-05 2006-05-12 Groupe Aubret Soc Par Actions Lance d'aspiration
WO2007030979A1 (fr) * 2005-09-16 2007-03-22 Yonglong Wu Tube d'aspiration de poussiere telescopique dans un aspirateur

Also Published As

Publication number Publication date
KR20000017812U (ko) 2000-10-05
AU4533199A (en) 2000-09-28
KR200232204Y1 (ko) 2001-09-13

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