WO2003024545A1 - Sleeve joint between the outer casing and inner tubing of a lengthwise telescopically adjustable shaft - Google Patents

Sleeve joint between the outer casing and inner tubing of a lengthwise telescopically adjustable shaft Download PDF

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Publication number
WO2003024545A1
WO2003024545A1 PCT/FI2002/000710 FI0200710W WO03024545A1 WO 2003024545 A1 WO2003024545 A1 WO 2003024545A1 FI 0200710 W FI0200710 W FI 0200710W WO 03024545 A1 WO03024545 A1 WO 03024545A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
frictional locking
frictional
sleeve joint
outer casing
Prior art date
Application number
PCT/FI2002/000710
Other languages
French (fr)
Inventor
Taisto Manninen
Jukka Juselius
Original Assignee
Exel Oyj
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 Exel Oyj filed Critical Exel Oyj
Publication of WO2003024545A1 publication Critical patent/WO2003024545A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/14—Telescoping systems locking in intermediate non-discrete positions
    • F16B7/1445—Telescoping systems locking in intermediate non-discrete positions with a rubber bushing gripping inside the outer telescoping member by a radial expansion due to its axial compression
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C11/00—Accessories for skiing or snowboarding
    • A63C11/22—Ski-sticks
    • A63C11/221—Ski-sticks telescopic, e.g. for varying the length or for damping shocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/14—Telescoping systems locking in intermediate non-discrete positions
    • F16B7/1463—Telescoping systems locking in intermediate non-discrete positions with the expansion of an element inside the outer telescoping member due to the axial movement towards a wedge or a conical member

Definitions

  • the invention relates to a sleeve joint between the outer casing and inner tubing of a teiescopically adjustable shaft, said sleeve joint comprising a first sleeve section, which is permanently secured around the end of the outer casing, and a second sleeve section, which has its female thread in engagement with a male thread of the first sleeve element, the inner tubing being accommodated to slide within the outer casing and the sleeve joint, and said second sleeve section being provided with internal socket-like frictional gripping elements, which surround the inner tubing and whose socket-like components are axially movable relative to each other and thus engageable for a frictional locking grip as a result of rotating the sleeve sections relative to each other, said socket-like components including a frictional locking ring and two clamping collars, the frictional locking ring being provided with a lengthwise slot, which allows a radial contraction of the frictional locking ring, and with conical end faces
  • This type of teiescopically adjustable shaft is prior known from Patent publication EP 0,449,194 Al, wherein a tube with a smaller outer diameter is capable of sliding within a larger diameter casing.
  • a sleeve element can be rotated for clamping the inner surface of a frictional locking ring against the outer surface of the inner tube.
  • a problem with this type of telescopic system is the difficulty to create such a major frictional gripping force which would be sufficient e.g. in a skiing, skating or Nordic walking pole application, wherein the shaft is subjected to major axial loads.
  • the frictional gripping force can be enhanced by decreasing the angle of wedge, but the angle of wedge cannot be decreased beyond the limit at which the conical faces grip each other in such a way that the frictional locking ring is not able to re- expand when the grip is released.
  • this object is accomplished in such a way that at least two frictional locking rings are axially in succession and between the same is at least one clamping collar, having its both ends provided with internal conical end faces which draw away or diverge from each other when approaching the outer surface of the clamping collar.
  • An advantage of the invention is that the joint is sufficiently sturdy for stressing the shaft with a substantial axial load.
  • the inventive telescopic shaft, along with its sleeve joint, finds a particularly suitable application in the lengthwise adjustment of skiing, skating and Nordic walking poles.
  • the sturdiness and user-friendliness of the joint enables use of the shaft also as a tool handle.
  • the shaft can be used for example as a broomstick or a mop handle.
  • Whatever accessory is employed at the end of the shaft, it can be replaced whenever necessary.
  • the shaft element of a ski pole which includes a snow ring and a spike member, can be replaced with a shaft element which carries the resilient tip of a Nordic walking pole.
  • the inventive shaft takes very little space in storage or transportation.
  • the adjustment of a shaft length is stepless.
  • the shaft material may comprise a composite material, i.e. resin-bonded reinforcement fibers, such as carbon and/or glass fibers.
  • Another suitable material for the shaft or pole is a metal.
  • the sleeve joint has its sleeves made of a hard, injection-moulding plastic. Preferred embodiments of the invention are disclosed in the non- independent claims.
  • Fig. 1 shows a sleeve joint for a telescopic shaft in an exploded view.
  • Fig. 2 shows axonometrically an exploded view.
  • Fig. 3 shows a sleeve joint in a split-up axonometric view.
  • Fig. 1 shows schematically a shaft, which is teiescopically adjustable by means of a sleeve joint and which is indicated by reference numeral 1. Depending on a particular application, the number of joints is typically 1-3 per shaft 1. In the region of a sleeve joint, the shaft 1 consists of an outer casing 2 and an inner tubing 3, the latter being pushed inside the outer casing 2.
  • Fig. 1 illustrates a first sleeve section 4 and a second sleeve section 20 constituting a sleeve joint.
  • the first sleeve section 4 of a sleeve joint is permanently secured at its top portion 5 around the end of the larger diameter tube or outer casing 2, for example by injection moulding.
  • the first sleeve section 10 has the cylindrical outer surface of its base portion 7 provided with its male thread 6.
  • the second sleeve section 20 has the inner surface of one of its ends provided with a female thread 22, the first sleeve section 10 and the second sleeve section 20 being engaged with each other by means of the discussed threads 6 and 22.
  • the first sleeve section 4 has its base portion 7 terminating in a planar annular surface 8, which penetrates into a cylindrical space 24 in the second sleeve section 20.
  • the inner tubing 3 has its outer diameter (see fig. 3) designed to enable its sliding movement within the outer casing 2 and the first and second sleeve sections 4 and 20 constituting a sleeve joint. Therefore, the sleeve sections 4 and 20 have their bottom portions provided with regions 6a and 21 of the smallest inner diameter, which correspond to the outer diameter of the inner tubing 3 with a running fit.
  • Fig. 1 illustrates also one preferred configuration for socket-like frictional gripping elements 100 in a partial cross-section
  • fig. 2 shows the same in an axonometric view.
  • the frictional gripping elements 100 are preferably made of a resilient, rather hard plastic or the like material, such as polyurethane.
  • the frictional gripping elements 100 comprise a number of axially successive socket components 9, 10, 11. According to the exemplary embodiment, these include two actual frictional locking rings 10, which have their preferably cylindrical inner faces establish an actual locking grip with the inner tubing 3.
  • the frictional gripping elements 100 include a clamping collar 11 set between the actual frictional locking rings 10, as well as clamping collars 9 mounted on the ends of the actual frictional locking rings 10. The end surface of these end clamping collars 9, directed away from the frictional locking rings 10, constitutes a planar annular surface 9a.
  • the actual frictional locking rings 10 are provided with a lengthwise slot 10c, which is provided for allowing a radial contraction for the actual frictional locking rings 10. Radial contraction occurs as the clamping collar components 9, 11 bear against each other with end faces 9b, 11a and lib thereof, which are in the shape of conical surface segments, and with a force of sufficient magnitude.
  • the frictional locking rings 10 have conical faces 10a and 10b approaching each other when progressing towards the outer surface of the ring 10.
  • the clamping collar components 9 and 10 have complementary conical faces 9b and 11a, lib, which draw away from each when progressing towards the outer surface of the clamping collar 9, 10.
  • Both ends of the clamping collar 11 set between the frictional locking rings 10 are provided with conical end faces 11a, lib, which draw away from each other when progressing towards the outer side of the clamping collar 10.
  • Each component of the frictional gripping means 100 has a cylindrical inner surface 9c, lOd, lie, having an inner diameter which corresponds to the smaller inner diameters 6a and 21 of the sleeve sections 4 and 20, whereby the inner tubing 3 can be passed through the frictional gripping socket 100 with a respective running fit.
  • the conical end faces of the sockets 9, 10, 11 form an angle of less than 45°, preferably an angle of about 25°-40°, with respect to the axial direction.
  • the second sleeve section 20 has the end of its cylindrical space 24 designed as an annular lip or shoulder 23, which has also an extension formed by the smaller inner diameter zone 21 of the second sleeve section 20.
  • the frictional gripping elements 100 have the first end clamping collar 9 thereof bearing by way of its annular surface 9a against the annular lip 23 of the sleeve section 20.
  • the other components of the frictional gripping means 100 are in a bearing relationship as an axial extension of this first end clamping collar 9, as already described above.
  • the frictional locking ring 10 surrounds the inner tubing 3 extended through the second sleeve section 20.
  • the frictional gripping means 100 have the other end thereof consisting of a second, similar end clamping collar 9 and it bears by way of its annular surface 9a against a planar annular surface 8 of the first sleeve section 4.
  • the threaded joint 6, 22 is initially rotated no further than to such an extent that the frictional gripping elements 100 do not clamp axially against each other. This is followed by adjusting a position of the inner tubing 3 relative to the outer casing 2 as desired. Next, the sleeve sections 10 and 20 are rotated further relative to each other for coupling the same with each other in a final locking position by means of the threads 6 and 22.
  • the second end clamping collar 9, bearing against the end 8 of the first sleeve section 4, applies contraction on other components of the frictional gripping means 100, the actual contractible components 10 of the frictional gripping means 100 contracting in a radial direction, as can be appreciated from fig. 3.
  • a frictional locking grip is established between an inner wall lOd of the actual locking ring and the outer wall of the inner tubing 3.
  • the inner tubing 3 is securely clamped by this grip in a desired position relative to the outer casing.
  • the inner tubing 3 must extend in a sufficient degree beyond the frictional gripping elements 100, preferably to a depth inside the outer casing sufficient to prevent breaking or buckling or some other such failure of the shaft 1 over the joint region.
  • the frictional locking rings 10 In order to provide a sufficient gripping area, the frictional locking rings 10 have an axial length which preferably exceeds its diameter. If necessary, the gripping area can be varied by varying the axial length of the frictional locking rings 10.
  • the diameter of the shaft 1 transforms to what is conical in the axial direction.
  • One or more of the individual tubular elements can also be slightly conical.
  • dimensions for both sleeve joints of the shaft 1, such as, for example, diameters for the threads 6 and 22 and a diameter for the frictional gripping elements 100, may also vary according to the diameter of the pole 1.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The present invention relates to a sleeve joint between the outer casing (2) and inner tubing (3) of a telescopically adjustable shaft (1). The sleeve joint comprises a first sleeve section (4), which is perrmanently secured around the end of the outer casing (2), and a second sleeve section (20), which has its female thread (22) in engagement with a male thread (6) of the first sleeve element (4), the inner tubing (3) being accommodated to slide within the outer casing (2) and the sleeve joint. The second sleeve section (20) is provided with internal socket-like frictional gripping elements (100), which surround the inner tubing (3) and whose socket-like components (9, 10, 11) are axially movable relative to each other and thus engageable for a frictional locking grip as a result of rotating the sleeve sections (4, 20) relative to each other. The socket-like components (9, 10, 11) include at least two frictional locking rings (10) and at least three clamping collars (9, 11). The frictional locking rings are provided with a lengthwise slot (10c), which allows a radial contraction of the frictional locking ring (10), and with conical end faces (10a, 10b) present at both ends, which approach each other when approaching the outer surface of the frictional locking ring (10). The clamping collars (9, 11) are provided with conical end faces (9b, 11a, 11b) bearing against the conical end faces (10a, 10b) of the frictional locking rings (10).

Description

Sleeve joint between the outer casing and inner tubing of a lengthwise teiescopically adjustable shaft
The invention relates to a sleeve joint between the outer casing and inner tubing of a teiescopically adjustable shaft, said sleeve joint comprising a first sleeve section, which is permanently secured around the end of the outer casing, and a second sleeve section, which has its female thread in engagement with a male thread of the first sleeve element, the inner tubing being accommodated to slide within the outer casing and the sleeve joint, and said second sleeve section being provided with internal socket-like frictional gripping elements, which surround the inner tubing and whose socket-like components are axially movable relative to each other and thus engageable for a frictional locking grip as a result of rotating the sleeve sections relative to each other, said socket-like components including a frictional locking ring and two clamping collars, the frictional locking ring being provided with a lengthwise slot, which allows a radial contraction of the frictional locking ring, and with conical end faces present at both ends, which approach each other when approaching the outer surface of the frictional locking ring, and the clamping collars being provided with conical end faces bearing against the conical end faces of the frictional locking ring.
This type of teiescopically adjustable shaft is prior known from Patent publication EP 0,449,194 Al, wherein a tube with a smaller outer diameter is capable of sliding within a larger diameter casing. A sleeve element can be rotated for clamping the inner surface of a frictional locking ring against the outer surface of the inner tube. A problem with this type of telescopic system is the difficulty to create such a major frictional gripping force which would be sufficient e.g. in a skiing, skating or Nordic walking pole application, wherein the shaft is subjected to major axial loads. The frictional gripping force can be enhanced by decreasing the angle of wedge, but the angle of wedge cannot be decreased beyond the limit at which the conical faces grip each other in such a way that the frictional locking ring is not able to re- expand when the grip is released.
It is an object of the present invention to provide a sleeve joint for a teiescopically adjustable shaft, which is capable of providing a more effective friction grip and a highly convenient use.
According to the present invention, this object is accomplished in such a way that at least two frictional locking rings are axially in succession and between the same is at least one clamping collar, having its both ends provided with internal conical end faces which draw away or diverge from each other when approaching the outer surface of the clamping collar.
An advantage of the invention is that the joint is sufficiently sturdy for stressing the shaft with a substantial axial load. The inventive telescopic shaft, along with its sleeve joint, finds a particularly suitable application in the lengthwise adjustment of skiing, skating and Nordic walking poles. The sturdiness and user-friendliness of the joint enables use of the shaft also as a tool handle. The shaft can be used for example as a broomstick or a mop handle. Whatever accessory is employed at the end of the shaft, it can be replaced whenever necessary. For example, the shaft element of a ski pole, which includes a snow ring and a spike member, can be replaced with a shaft element which carries the resilient tip of a Nordic walking pole. Moreover, the inventive shaft takes very little space in storage or transportation. In addition, the adjustment of a shaft length is stepless.
The shaft material may comprise a composite material, i.e. resin-bonded reinforcement fibers, such as carbon and/or glass fibers. Another suitable material for the shaft or pole is a metal. The sleeve joint has its sleeves made of a hard, injection-moulding plastic. Preferred embodiments of the invention are disclosed in the non- independent claims.
The invention will now be described in more detail with reference to the accompanying drawings, in which:
Fig. 1 shows a sleeve joint for a telescopic shaft in an exploded view.
Fig. 2 shows axonometrically an exploded view.
Fig. 3 shows a sleeve joint in a split-up axonometric view.
Fig. 1 shows schematically a shaft, which is teiescopically adjustable by means of a sleeve joint and which is indicated by reference numeral 1. Depending on a particular application, the number of joints is typically 1-3 per shaft 1. In the region of a sleeve joint, the shaft 1 consists of an outer casing 2 and an inner tubing 3, the latter being pushed inside the outer casing 2.
Fig. 1 illustrates a first sleeve section 4 and a second sleeve section 20 constituting a sleeve joint. The first sleeve section 4 of a sleeve joint is permanently secured at its top portion 5 around the end of the larger diameter tube or outer casing 2, for example by injection moulding.
The first sleeve section 10 has the cylindrical outer surface of its base portion 7 provided with its male thread 6. On the other hand, the second sleeve section 20 has the inner surface of one of its ends provided with a female thread 22, the first sleeve section 10 and the second sleeve section 20 being engaged with each other by means of the discussed threads 6 and 22. The first sleeve section 4 has its base portion 7 terminating in a planar annular surface 8, which penetrates into a cylindrical space 24 in the second sleeve section 20.
The inner tubing 3 has its outer diameter (see fig. 3) designed to enable its sliding movement within the outer casing 2 and the first and second sleeve sections 4 and 20 constituting a sleeve joint. Therefore, the sleeve sections 4 and 20 have their bottom portions provided with regions 6a and 21 of the smallest inner diameter, which correspond to the outer diameter of the inner tubing 3 with a running fit.
Fig. 1 illustrates also one preferred configuration for socket-like frictional gripping elements 100 in a partial cross-section, and fig. 2 shows the same in an axonometric view. The frictional gripping elements 100 are preferably made of a resilient, rather hard plastic or the like material, such as polyurethane. The frictional gripping elements 100 comprise a number of axially successive socket components 9, 10, 11. According to the exemplary embodiment, these include two actual frictional locking rings 10, which have their preferably cylindrical inner faces establish an actual locking grip with the inner tubing 3. In addition, the frictional gripping elements 100 include a clamping collar 11 set between the actual frictional locking rings 10, as well as clamping collars 9 mounted on the ends of the actual frictional locking rings 10. The end surface of these end clamping collars 9, directed away from the frictional locking rings 10, constitutes a planar annular surface 9a.
The actual frictional locking rings 10 are provided with a lengthwise slot 10c, which is provided for allowing a radial contraction for the actual frictional locking rings 10. Radial contraction occurs as the clamping collar components 9, 11 bear against each other with end faces 9b, 11a and lib thereof, which are in the shape of conical surface segments, and with a force of sufficient magnitude. The frictional locking rings 10 have conical faces 10a and 10b approaching each other when progressing towards the outer surface of the ring 10. The clamping collar components 9 and 10 have complementary conical faces 9b and 11a, lib, which draw away from each when progressing towards the outer surface of the clamping collar 9, 10. Both ends of the clamping collar 11 set between the frictional locking rings 10 are provided with conical end faces 11a, lib, which draw away from each other when progressing towards the outer side of the clamping collar 10. Each component of the frictional gripping means 100 has a cylindrical inner surface 9c, lOd, lie, having an inner diameter which corresponds to the smaller inner diameters 6a and 21 of the sleeve sections 4 and 20, whereby the inner tubing 3 can be passed through the frictional gripping socket 100 with a respective running fit. The conical end faces of the sockets 9, 10, 11 form an angle of less than 45°, preferably an angle of about 25°-40°, with respect to the axial direction. The second sleeve section 20 has the end of its cylindrical space 24 designed as an annular lip or shoulder 23, which has also an extension formed by the smaller inner diameter zone 21 of the second sleeve section 20. It is illustrated in fig. 3 that the frictional gripping elements 100 have the first end clamping collar 9 thereof bearing by way of its annular surface 9a against the annular lip 23 of the sleeve section 20. The other components of the frictional gripping means 100 are in a bearing relationship as an axial extension of this first end clamping collar 9, as already described above. Hence, the frictional locking ring 10 surrounds the inner tubing 3 extended through the second sleeve section 20. Thus, the frictional gripping means 100 have the other end thereof consisting of a second, similar end clamping collar 9 and it bears by way of its annular surface 9a against a planar annular surface 8 of the first sleeve section 4.
In the process of coupling the sleeve sections 4 and 20 with each other, the threaded joint 6, 22 is initially rotated no further than to such an extent that the frictional gripping elements 100 do not clamp axially against each other. This is followed by adjusting a position of the inner tubing 3 relative to the outer casing 2 as desired. Next, the sleeve sections 10 and 20 are rotated further relative to each other for coupling the same with each other in a final locking position by means of the threads 6 and 22. Thus, the second end clamping collar 9, bearing against the end 8 of the first sleeve section 4, applies contraction on other components of the frictional gripping means 100, the actual contractible components 10 of the frictional gripping means 100 contracting in a radial direction, as can be appreciated from fig. 3. As a result of this, a frictional locking grip is established between an inner wall lOd of the actual locking ring and the outer wall of the inner tubing 3. The inner tubing 3 is securely clamped by this grip in a desired position relative to the outer casing. Naturally, the inner tubing 3 must extend in a sufficient degree beyond the frictional gripping elements 100, preferably to a depth inside the outer casing sufficient to prevent breaking or buckling or some other such failure of the shaft 1 over the joint region.
In order to provide a sufficient gripping area, the frictional locking rings 10 have an axial length which preferably exceeds its diameter. If necessary, the gripping area can be varied by varying the axial length of the frictional locking rings 10.
The diameter of the shaft 1 transforms to what is conical in the axial direction. One or more of the individual tubular elements can also be slightly conical. Hence, dimensions for both sleeve joints of the shaft 1, such as, for example, diameters for the threads 6 and 22 and a diameter for the frictional gripping elements 100, may also vary according to the diameter of the pole 1.

Claims

Claims
1. A sleeve joint between the outer casing (2) and inner tubing (3) of a teiescopically adjustable shaft (1), said sleeve joint comprising a first sleeve section (4), which is permanently secured around the end of the outer casing (2), and a second sleeve section (20), which has its female thread (22) in engagement with a male thread (6) of the first sleeve element (4), the inner tubing (3) being accommodated to slide within the outer casing (2) and the sleeve joint, and said second sleeve section (20) being provided with internal socket-like frictional gripping elements (100), which surround the inner tubing (3) and whose socket-like components (9, 10, 11) are axially movable relative to each other and thus engageable for a frictional locking grip as a result of rotating the sleeve sections (4, 20) relative to each other, said socket-like components (9, 10) including a frictional locking ring (10) and two clamping collars (9), the frictional locking ring being provided with a lengthwise slot (10c), which allows a radial contraction of the frictional locking ring (10), and with conical end faces (10a, 10b) present at both ends, which approach each other when approaching the outer surface of the frictional locking ring (10), and the clamping collars (9, 11) being provided with conical end faces (9b) bearing against the conical end faces (10a, 10b) of the frictional locking ring (10), characterized in that at least two frictional locking rings (10) are axially in succession and between the same is at least one clamping collar (11), having its both ends provided with internal conical end faces (11a, lib) which draw away from each other when approaching the outer surface of the clamping collar (11).
2. A sleeve joint as set forth in claim 1, characterized in that the conical end faces (9b, 10a, 10b, 11a, lib) form an angle of less than 45°, preferably an angle of about 25°-40°, relative to the axial direction.
3. A sleeve joint as set forth in claim 1 or 2, characterized in that the teiescopically adjustable shaft (1) comprises a skiing, skating or Nordic walking pole.
4. A sleeve joint as set forth in any of claims 1-3, characterized in that the teiescopically adjustable shaft (1) comprises a tool handle.
PCT/FI2002/000710 2001-09-05 2002-09-04 Sleeve joint between the outer casing and inner tubing of a lengthwise telescopically adjustable shaft WO2003024545A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20011759A FI20011759A (en) 2001-09-05 2001-09-05 Sleeve connection between outer and inner tube of telescopically adjustable tube
FI20011759 2001-09-05

Publications (1)

Publication Number Publication Date
WO2003024545A1 true WO2003024545A1 (en) 2003-03-27

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PCT/FI2002/000710 WO2003024545A1 (en) 2001-09-05 2002-09-04 Sleeve joint between the outer casing and inner tubing of a lengthwise telescopically adjustable shaft

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WO (1) WO2003024545A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2430889A (en) * 2005-10-06 2007-04-11 Richard Owen Marks Telescopic ski pole and holster
EP1787693A1 (en) * 2005-11-17 2007-05-23 Black Diamond Equipment AG Improved collapsible ski pole system
US7637684B2 (en) 2006-01-25 2009-12-29 Rycote Microphone Windshields Ltd. Boom pole
CN105378558A (en) * 2014-03-20 2016-03-02 伟如宝株式会社 Extending/retracting device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134703A (en) * 1978-02-09 1979-01-16 Hinners Earl S Locking structure for extensible pole
DE3027296A1 (en) * 1979-07-31 1981-03-12 Gipiemme S.r.l., Camisano Vicentino, Vicenza CLAMPING DEVICE FOR ATTACHING A SEAT POST TO A BICYCLE FRAME.
DE8910469U1 (en) * 1989-09-01 1989-10-26 Lenhart, Klaus, 7312 Kirchheim, De
EP0449194A1 (en) * 1990-03-30 1991-10-02 Günther Kies Latching device with continuous adjustment for telescopically guided tubes
US5649780A (en) * 1995-02-06 1997-07-22 Delair Group Incorporated Collet for telescoping assembly
EP1106133A1 (en) * 1999-12-07 2001-06-13 Wuxian Yuexi Power Cable and Electrical Factory Telescopic vacuum cleaner suction pipe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134703A (en) * 1978-02-09 1979-01-16 Hinners Earl S Locking structure for extensible pole
DE3027296A1 (en) * 1979-07-31 1981-03-12 Gipiemme S.r.l., Camisano Vicentino, Vicenza CLAMPING DEVICE FOR ATTACHING A SEAT POST TO A BICYCLE FRAME.
DE8910469U1 (en) * 1989-09-01 1989-10-26 Lenhart, Klaus, 7312 Kirchheim, De
EP0449194A1 (en) * 1990-03-30 1991-10-02 Günther Kies Latching device with continuous adjustment for telescopically guided tubes
US5649780A (en) * 1995-02-06 1997-07-22 Delair Group Incorporated Collet for telescoping assembly
EP1106133A1 (en) * 1999-12-07 2001-06-13 Wuxian Yuexi Power Cable and Electrical Factory Telescopic vacuum cleaner suction pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2430889A (en) * 2005-10-06 2007-04-11 Richard Owen Marks Telescopic ski pole and holster
EP1787693A1 (en) * 2005-11-17 2007-05-23 Black Diamond Equipment AG Improved collapsible ski pole system
US7637684B2 (en) 2006-01-25 2009-12-29 Rycote Microphone Windshields Ltd. Boom pole
CN105378558A (en) * 2014-03-20 2016-03-02 伟如宝株式会社 Extending/retracting device
EP2975456A4 (en) * 2014-03-20 2016-03-23 Velbon Kk Extending/retracting device
US10145402B2 (en) 2014-03-20 2018-12-04 Velbon Kabushiki Kaisha Telescoping device

Also Published As

Publication number Publication date
FI20011759A0 (en) 2001-09-05
FI20011759A (en) 2003-03-06

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