EP2959790A1 - Canne de marche ajustable - Google Patents

Canne de marche ajustable Download PDF

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Publication number
EP2959790A1
EP2959790A1 EP15173205.4A EP15173205A EP2959790A1 EP 2959790 A1 EP2959790 A1 EP 2959790A1 EP 15173205 A EP15173205 A EP 15173205A EP 2959790 A1 EP2959790 A1 EP 2959790A1
Authority
EP
European Patent Office
Prior art keywords
unit
inner tube
connecting rod
threaded segment
outer tube
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Withdrawn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
EP15173205.4A
Other languages
German (de)
English (en)
Inventor
Shih-Fu Wang
Hsiu-Chen Lai
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.)
Valor Enterprise Co Ltd
Original Assignee
Valor Enterprise 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 Valor Enterprise Co Ltd filed Critical Valor Enterprise Co Ltd
Publication of EP2959790A1 publication Critical patent/EP2959790A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A45B2009/005—Shafts
    • A45B2009/007—Shafts of adjustable length, e.g. telescopic shafts

Definitions

  • the present invention relates to a walking cane, and more particularly to an adjustable walking cane that can be simply operated and adjusted.
  • the current adjustable walking cane (70) (as shown in FIGs. 10 and 11 ) has a first stem (71) and a second stem (72), A positioning unit (80) comprising a sleeve (81) and an annular compressible unit (82) is formed between the first stem (71) and the second stem (72).
  • the sleeve (81) is tightly engaged with the second stem (72), and a surface thereof has an outer threaded segment (811).
  • a lower end of the annular compressible unit (82) shaped into a cone is connected to the outer threaded segment (811) of the sleeve (81), and a resilient claw portion (821) is formed at a bottom thereof.
  • the sleeve (81) is inserted and engaged with a taper base (90), and a supporting portion (812) is formed at an upper portion thereof for supporting the taper base (90).
  • the resilient claw portion (821) of the annular compressible unit (82) bears against the taper base (90) to grip an interior surface of the first stem (71).
  • the user can adjust the length of the cane (70) by twisting the second stem (72) that simultaneously drives the sleeve (81) and the taper base (90) to spin.
  • the relative positions between the annular compressible unit (82) and the taper base (90) can be changed for achieving the effect of adjusting the length of cane (70).
  • conventional adjustable walking cane (70) is disadvantageous because: (i) by tightening the outer threaded segment (811) of the sleeve (81), the resilient claw portion (821) of the annular compressible unit (82) bears against the taper base (90) to grip the interior surface of the first stem (71). The user need to exert more strength to compress the sleeve (81) forward to the annular compressible unit (82) while the position of the outer threaded segment (811) of the sleeve (81) is more closer to the taper base (90).
  • the outer threaded segment (811) of the sleeve (81) is compressed tightly by the annular compressible unit (82), so the probability of getting stuck between the annular compressible unit (82) and the sleeve (81) and the difficulty of disengaging the second stem (72) by twisting for the user are increased; (ii) the length of the cane (70) is adjusted by twisting the outer threaded segment (811) of the sleeve (81) and the annular compressible unit (82).
  • the twisting action is difficult for the user to perform while a surface of the second stem (72) is smooth; and (iii) the length of the cane (70) is fixed by bearing against the resilient claw portion (821) of the annular compressible unit (82) made of the plastic material to grip the interior surface of the first stem (71), and the frictional resistance is insufficient while the interior surface of the first stem (71) is smooth.
  • the cane (70) is not reliable while the annular compressible unit (82) and the first stem (71) can not be engaged tightly. Therefore, there remains a need for a new and improved design for an adjustable walking cane to overcome the problems presented above.
  • the present invention provides an adjustable walking cane, which comprises an inner tube, an outer tube, a connecting rod, a pushing unit and an extending unit.
  • the inner tube is connected to a first handle at one end, and a protruding portion is formed at the other end thereof.
  • a controlling unit having a cover at one end is formed adjacent the first handle, and a through hole is formed on the first handle for penetration by the other end of the controlling unit.
  • the outer tube comprises a non-slip plug received at one end and a restricting cover is secured on the other end.
  • a block portion is formed at an inner edge of the restricting cover for engaging with the protruding portion of the inner tube while the outer tube is connected to the inner tube, and an inner threaded segment is formed at an inner surface of the outer tube.
  • the connecting rod driven by pressing the controlling unit is secured with the controlling unit at one end, and a threaded segment formed at the other end is connected to the outer tube, and a blocking piece is formed at a central portion thereof.
  • the pushing unit having a tapered surface at one end is secured at an open end of the inner tube with the protruding portion thereon, and a connecting portion is formed at the other end thereof.
  • the connecting portion is compressed against the inner tube, and a plurality of axial slots are formed thereon for increasing the deformation of the connecting portion by compression.
  • the extending unit comprises an axial pore for connecting to the threaded segment on the end of the connecting rod, and a nut is fastened on the threaded segment for securing the positions of the extending unit and the pushing unit.
  • a plurality of extending pieces is formed around the connecting rod, and a resilient sleeve is formed at an outer edge of an upper end thereof.
  • a first tubular piece and a second tubular piece protruded from the extending pieces are formed for limiting the position of the resilient sleeve.
  • the present invention is advantageous because: (i) the resilience of the spring compresses the connecting rod against the extending unit and the pushing unit, and the resilient sleeve bears against the inner threaded segment of the outer tube, and then the length of the outer tube and inner tube can be fixed.
  • the inner tube and the outer tube are extended outwardly by directly pulling the cane from two ends thereof, and the inner tube and the outer tube are released from compression while the resilient sleeve is detached from the inner threaded segment.
  • the inner tube and the outer tube are released from compression while the extending pieces on the extending unit driven by controlling unit is detached from the taper surface of the pushing unit, and the length of cane can be adjusted easily; (ii) the spring of the cane bears against the pushing unit and the blocking piece of the connecting rod, and the extending pieces on the extending unit compresses against the taper surface of the pushing unit, and the resilient sleeve compresses against the inner threaded segment while the taper surface compresses against the extending pieces.
  • the pushing unit driven by the inner tube compresses against the expending unit, and the expending pieces on the expending unit is expanded by the pushing unit.
  • the resilient sleeve tightly compresses against the inner threaded segment while the user exerts more strength on the first handle, and the adjustable walking cane is much reliable while the rugged thread of the inner thread segment and the resilience of the resilient sleeve increase the resistance between the resilient sleeve and the inner threaded segment; and (iii) the spring of the cane bears the connecting rod against the extending unit and the pushing unit, and the resilient sleeve is expanded against the inner threaded segment on the outer tube, and then the length of the outer tube and inner tube can be fixed.
  • the controlling unit can be easily operated by axially detaching the taper surface of the pushing unit from the extending pieces and the resilience of the extending pieces and the resilient sleeve.
  • an adjustable walking cane which comprises an inner tube (10), an outer tube (20), a connecting rod (30), a pushing unit (40) and an extending unit (50).
  • the inner tube (10) is connected to a first handle (11) at one end, and a protruding portion (12) is formed at the other end thereof.
  • a controlling unit (60) having a cover (601) at one end is formed adjacent to the first handle (11), and a through hole (111) is formed on the first handle (11) for penetrating by the other end of the controlling unit (60).
  • the outer tube (20) comprises a non-slip plug (21) received at one end and a restricting cover (22) is secured on the other end.
  • a block portion (221) is formed inside the restricting cover (22) for engaging with the protruding portion (12) of the inner tube (10) while the outer tube (20) is connected to the inner tube (10), and an inner threaded segment (23) is formed at an inner surface of the outer tube (20).
  • the connecting rod (30) driven by pressing the controlling unit (60) is connected with the controlling unit (60) at one end, and a threaded segment (31) formed at the other end is connected to the outer tube (20), and a blocking piece (32) is formed at a central portion thereof.
  • the pushing unit (40) having a tapered surface (41) at one end is secured at an open end of the inner tube (10) with the protruding portion (12) thereon, and a connecting portion (42) is formed at the other end of the pushing unit (40).
  • the connecting portion (42) is compressed against the inner tube (10), and a plurality of axial slots (421) are formed thereon to increase the degree of deformation of the connecting portion (42) caused by the compression.
  • An annular portion (43) protruding from a middle portion of the pushing unit (40) is compressed against the open end of the inner tube (10) to secure the pushing unit (40) at one end of the inner tube (10).
  • a rod hole (44) is formed at a top portion of the pushing unit (40), so the threaded segment (31) of the connecting rod (30) can penetrate the rod hole (44), and a spring (45) is formed between the pushing unit (40) and the blocking piece (32).
  • the extending unit (50) comprises an axial pore (51) for connecting to the threaded segment (31) of the connecting rod (30), and a nut (52) is fastened on the threaded segment (31) to restrict the extending unit (50) and the pushing unit (40).
  • a plurality of extending pieces (53) is formed around the connecting rod (30), and a resilient sleeve (54) is formed at an outer edge a rear end of the extending piece (53).
  • a first tubular piece (531) and a second tubular piece (532) protruded from the extending pieces (53) are formed for restricting the resilient sleeve (54).
  • the resilient sleeve (54) is compressed against the inner threaded segment (23) on the outer tube (20), so the length of the outer tube (20) and the inner tube (10) is fixed.
  • the controlling unit (60) is plugged into the through hole (111) on the first handle (11) to connect to the threaded segment (31) of the connecting rod (30), and the inner tube (10) covered by the restricting cover (22) is locked to the first handle (11).
  • the connecting rod (30) penetrates through the inner tube (10) to connect to the rod hole (44) on the pushing unit (40), and the spring (45) disposed on the lower portion thereof.
  • the spring (45) aligned between the blocking piece (32) and the pushing unit (40) is compressed by the connecting portion (42) of the pushing unit (40) against the opening of the inner tube (10).
  • the resilient sleeve (54) disposed on the extending unit (50) is located between the first annular piece (531) and the second annular piece (532), and the axial hole (51) on the extending unit (50) is upwardly connected to the end of the connecting rod (30) with the threaded segment (31).
  • the nut (52) is fastened on the threaded segment (31) for securing the spring (45), the pushing unit (40) and the extending unit (50) between the blocking piece (32) and the threaded segment (31).
  • the inner tube (10) is inserted into an open end of the outer tube (20), and the expanding unit (50) is secured among the inner threaded segment (23) on the outer tube (20).
  • the spring (45) compressing against the pushing unit (40) and the blocking piece (32) of the connecting rod (30) tightens the connecting rod (30) forward the first handle (11), and keeps the expanding pieces (53) of the expanding unit (50) compress against the taper surface (41) of the pushing unit (40).
  • the expanding pieces (53) compressed by the taper surface (41) extends outwardly to compress the resilient sleeve (54) against the inner threaded segment (23) on the outer tube (20).
  • the resilient sleeve (54) and the inner threaded segment (23) can be tightly attached each other when the first handle (11) is much pressed by the user, and the adjustable walking cane is much reliable while the rugged thread of the inner thread segment (23) and the resilience of the resilient sleeve (54) increase the resistance between the resilient sleeve (54) and the inner threaded segment (23).
  • the inner tube (10) and the outer tube (20) are extended outwardly (the user may hold the first handle (11) or the inner tube (10) by one hand and hold the outer tube (20) or the anti-slip plug (21) by the other hand), and the cane can be extended into extending position without twisting or pressing action.
  • the pushing unit (40) can be driven directly by the inner tube (10) to detach from the extending unit (50) due to the resistance of the inner threaded segment (23) on the outer tube (20).
  • the inner tube (10) and the outer tube (20) can be extended easily while the extending pieces (53) releases the compression from taper surface (41) of the pushing unit (40), and the resilient sleeve (54) is no longer compressed against the inner threaded segment (23) on the outer tube (20).
  • the spring (45) bearing the blocking piece (32) of the connecting rod (30) compresses the extending unit (50) against the pushing unit (40) in any length of cane, then the length of the inner tube (10) and outer tube (20) can be fixed.
  • the cane can be adjusted to a variety of lengths to accommodate different sized people.
  • the user can hold the first handle (11) by one hand to press the cover (601) of the controlling unit (60), and hold the outer tube (20) by the other hand to press toward the first handle (11).
  • the connecting rod (30) compressed by the controlling unit (60) is moved toward the end of the anti-slip plug (21), and the taper surface (41) of the pushing unit (40) is detached from the extending pieces (53) on the extending unit (50).
  • the inner tube (10) and the outer tube (20) are released from compression while the resilient sleeve (54) is detached from the inner threaded segment (23).
  • the controlling unit (60) can be easily operated by axially detaching the taper surface (41) of the pushing unit (40) from the extending pieces (53) and the resilience of the extending pieces (53) and the resilient sleeve (54). Also, the present invention of the adjustable walking cane has a function to retract the cane against the ground to help the user stand the body, when the user is in sitting position.
  • a slot (13) is formed at an upper end of the inner tube (10), and the controlling unit (60) comprises a plug (61), a sleeve body (62) and a second handle (63).
  • the plug (61) is secured on a top portion of the connecting rod (30), and a bolt (64) is formed pivotally for securing the second handle (63) on the sleeve body (62), and the sleeve body (62) secured around the slot (13) is disposed on the inner tube (10), and one end of the second handle (63) penetrates through the slot (13) to bear against the plug (61).
  • the user can pull the second handle (63) by one hand, and the bolt (64) is served as a pivot of the second handle (63) for rotation, and the plug (61) compressed by the other end of the second handle (63) drives the connecting rod (30) to adjust the length of the cane easily.

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  • Rehabilitation Tools (AREA)
EP15173205.4A 2014-06-25 2015-06-22 Canne de marche ajustable Withdrawn EP2959790A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW103211289U TWM489528U (en) 2014-06-25 2014-06-25 Telescopically adjusting structure of cane

Publications (1)

Publication Number Publication Date
EP2959790A1 true EP2959790A1 (fr) 2015-12-30

Family

ID=54188295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15173205.4A Withdrawn EP2959790A1 (fr) 2014-06-25 2015-06-22 Canne de marche ajustable

Country Status (5)

Country Link
US (1) US20150374081A1 (fr)
EP (1) EP2959790A1 (fr)
JP (1) JP3199705U (fr)
CN (1) CN204861597U (fr)
TW (1) TWM489528U (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015160947A1 (fr) * 2014-04-18 2015-10-22 The Mazz Tech Group, Llc Poignee pour outil ou instrument similaire
CN105617626B (zh) * 2016-03-14 2018-03-20 齐翊深 一种便携式羽毛球拍
TWI672135B (zh) * 2018-02-09 2019-09-21 美迪健康事業有限公司 助行器
USD888407S1 (en) * 2019-07-11 2020-06-30 John Dash Cane
CN110507056A (zh) * 2019-09-12 2019-11-29 陕西科技大学 一种多功能箱包拉杆
US11408459B2 (en) * 2020-03-24 2022-08-09 Upperstate Llc Height adjustable walking aid
USD1030297S1 (en) 2022-06-07 2024-06-11 Upperstate Llc Walking cane

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100316438A1 (en) * 2006-12-05 2010-12-16 Dae Up Sohn Connector for stick
US20140053887A1 (en) * 2012-06-04 2014-02-27 Lanny Ray Lee Handle Actuated Length-Adjustable Cane

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US2329932A (en) * 1940-05-31 1943-09-21 Edward F Nelson Tool support
DE3430737C2 (de) * 1984-08-21 1986-09-18 Cullmann Handelsgesellschaft für Verbrauchsgüter mbH, 8506 Langenzenn Stativ für eine Kamera oder für ein anderes optisches Gerät
GB8701051D0 (en) * 1987-01-16 1987-02-18 Roberts Consolidated Ind Locking device
DE8800684U1 (de) * 1988-01-21 1988-03-03 Ko, Hsi-Chia, Changhua Einhandmischer
US6609686B2 (en) * 2002-01-18 2003-08-26 Tam Srl Adjustable support apparatus
US7302745B2 (en) * 2003-02-24 2007-12-04 Ragnar Stahle Method for locking a first tube member to a second tube member
US7845602B1 (en) * 2006-02-09 2010-12-07 Primos, Inc. Telescoping support stand apparatus
WO2009003298A1 (fr) * 2007-07-03 2009-01-08 Lekisport Ag Bâton avec amortisseur
US20150000719A1 (en) * 2013-06-27 2015-01-01 Southern Virginia Higher Education Center Articulating cane
US8967170B1 (en) * 2013-11-18 2015-03-03 Valor Enterprise Co., Ltd. Adjustable positioning structure for a walking stick

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100316438A1 (en) * 2006-12-05 2010-12-16 Dae Up Sohn Connector for stick
US20140053887A1 (en) * 2012-06-04 2014-02-27 Lanny Ray Lee Handle Actuated Length-Adjustable Cane

Also Published As

Publication number Publication date
US20150374081A1 (en) 2015-12-31
JP3199705U (ja) 2015-09-03
CN204861597U (zh) 2015-12-16
TWM489528U (en) 2014-11-11

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