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EP1679106A1 - Articulation pour tubes - Google Patents

Articulation pour tubes Download PDF

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Publication number
EP1679106A1
EP1679106A1 EP05250086A EP05250086A EP1679106A1 EP 1679106 A1 EP1679106 A1 EP 1679106A1 EP 05250086 A EP05250086 A EP 05250086A EP 05250086 A EP05250086 A EP 05250086A EP 1679106 A1 EP1679106 A1 EP 1679106A1
Authority
EP
European Patent Office
Prior art keywords
tube
elbow joint
pivot axis
resistance surface
connector
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.)
Withdrawn
Application number
EP05250086A
Other languages
German (de)
English (en)
Inventor
James Chun Chung Lim
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.)
COG Ltd
Original Assignee
COG 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 COG Ltd filed Critical COG Ltd
Priority to EP05250086A priority Critical patent/EP1679106A1/fr
Publication of EP1679106A1 publication Critical patent/EP1679106A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/10—Building blocks, strips, or similar building parts to be assembled by means of additional non-adhesive elements

Definitions

  • the present invention relates to elbow joints for connecting hollow tubes. More particularly, although not exclusively, the invention relates to reconfigurable elbow joints for use by children in assembling structures in which cardboard tubes are connected end-to-end with the elbow joints.
  • an elbow joint comprising:
  • the second connector is resiliently deformable and the first connector comprises an opening into which the second connector snap-engages.
  • the first resistance surface comprises an inwardly facing circular array of teeth and the second resistance surface comprises an outwardly facing circular array of teeth.
  • the second resistance surface comprises a plurality of slots enabling the outwardly facing array of teeth to resiliently deform to enable rotation of the first component with respect to the second component.
  • the first and second tube retainers each comprise an annular protrusion having a plurality of lengthwise slots enabling portions of the protrusion flanked by the slots to deflect inwardly upon insertion into a tube.
  • the annular protrusion comprises an annular flange through which the slots extend.
  • the annular protrusion comprises a plurality of lugs aligned with each slot and extending radially of the protrusion for bearing against an inside surface of a tube.
  • FIGs. 1 to 8 of the accompanying drawings there is depicted schematically an elbow joint 10 comprising a first component 11 pivotally interconnected to a second component 12.
  • Components 11 and 12 are formed of moulded plastics material.
  • the first component 11 comprises a first tube retainer 13 being substantially hollow cylindrical in form and comprising a number of lengthwise slots 21.
  • a first tube retainer 13 being substantially hollow cylindrical in form and comprising a number of lengthwise slots 21.
  • the slots 21 enable the tube retainer 13 to compress radially as it is inserted into the end of a tube and the lugs 23 then bear against the inside surface of the tube end to cooperate with the flange 22 to maintain a proper alignment of the tube with respect to the first component 11.
  • the shape of the flange makes it easier to insert the tube retainer into a tube end than it is to remove.
  • the second component 12 includes an identical (second) tube retainer 14.
  • the first component 11 includes a first connector in the form of a cylindrical opening having an inwardly extending lip 16. Extending about the opening is a circular array of longitudinally extending, inwardly facing teeth 18 forming a first resistance surface.
  • the second component 12 has a second cylindrical connector 17 having a pair of diametrically opposed longitudinal slots 24 and a pair of semicircular outwardly facing barbs (not shown).
  • the second connector 17 can thereby be snapped behind the lip 16 of the first connector and the barb is retained behind the lip to retain the components in pivotal association with one another.
  • a second resistance surface 19 in the form of a circular array of outwardly facing, longitudinally extending teeth.
  • the teeth of the second resistance surface engage the teeth of the first resistance surface when the first and second components are connected.
  • the co-linear pivot axes of each component 11, 12 as represented at A in Fig. 3 defines a singular axis about which the mutual angular disposition of the respective tube retainers can be adjusted.
  • a degree of bending force must be applied whereupon the teeth of the second resistance surface ride over the teeth of the first resistance surface while deflecting inwardly and resiliently returning while making a clicking sound.
  • Example structures are shown in Figs. 9 and 10. These include a number of elbow joints 10 and a number of cardboard tubes 15 of the type that might otherwise be discarded from finished paper towel rolls.
  • one or both of the resistance surfaces might comprise a smooth band of rubber or other fictional material instead of integrally formed teeth.

Landscapes

  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP05250086A 2005-01-10 2005-01-10 Articulation pour tubes Withdrawn EP1679106A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05250086A EP1679106A1 (fr) 2005-01-10 2005-01-10 Articulation pour tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05250086A EP1679106A1 (fr) 2005-01-10 2005-01-10 Articulation pour tubes

Publications (1)

Publication Number Publication Date
EP1679106A1 true EP1679106A1 (fr) 2006-07-12

Family

ID=34940352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05250086A Withdrawn EP1679106A1 (fr) 2005-01-10 2005-01-10 Articulation pour tubes

Country Status (1)

Country Link
EP (1) EP1679106A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008153292A3 (fr) * 2007-06-09 2009-02-05 Dae-Keun Kwak Jouet de type à tubes connectables
US8550868B2 (en) 2007-06-09 2013-10-08 Dae-keun KWAK Tube connector for assembly toy
NL2012243C2 (nl) * 2014-02-11 2015-08-17 Mark Rondema Elementen van constructiespeelgoed.
CN116691209A (zh) * 2023-06-16 2023-09-05 康惠君 一种圆规滚动印章笔

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873220A (en) * 1972-02-17 1975-03-25 Nihon Space Union Co Ltd Tube joint
FR2317717A1 (fr) * 1975-07-11 1977-02-04 Menabe Edme Systeme pour l'edification de constructions diverses, en grandeur vraie ou reduite
GB1508417A (en) * 1975-03-06 1978-04-26 Bhagat Eng Co Private Ltd Structural units
US5690446A (en) * 1996-06-18 1997-11-25 Somerville House Books Limited Connection system for connecting struts to construct three-dimensional structures

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873220A (en) * 1972-02-17 1975-03-25 Nihon Space Union Co Ltd Tube joint
GB1508417A (en) * 1975-03-06 1978-04-26 Bhagat Eng Co Private Ltd Structural units
FR2317717A1 (fr) * 1975-07-11 1977-02-04 Menabe Edme Systeme pour l'edification de constructions diverses, en grandeur vraie ou reduite
US5690446A (en) * 1996-06-18 1997-11-25 Somerville House Books Limited Connection system for connecting struts to construct three-dimensional structures

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008153292A3 (fr) * 2007-06-09 2009-02-05 Dae-Keun Kwak Jouet de type à tubes connectables
KR100883384B1 (ko) 2007-06-09 2009-02-11 곽대근 조립완구용 튜브 연결체
CN101678241B (zh) * 2007-06-09 2011-10-05 郭大根 管连接型玩具
US8550868B2 (en) 2007-06-09 2013-10-08 Dae-keun KWAK Tube connector for assembly toy
NL2012243C2 (nl) * 2014-02-11 2015-08-17 Mark Rondema Elementen van constructiespeelgoed.
CN116691209A (zh) * 2023-06-16 2023-09-05 康惠君 一种圆规滚动印章笔

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