US3556544A - Ski pole of adjustable length - Google Patents

Ski pole of adjustable length Download PDF

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Publication number
US3556544A
US3556544A US769924A US76992468A US3556544A US 3556544 A US3556544 A US 3556544A US 769924 A US769924 A US 769924A US 76992468 A US76992468 A US 76992468A US 3556544 A US3556544 A US 3556544A
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Prior art keywords
pressure element
pole
rod
eccentric
section
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Expired - Lifetime
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US769924A
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English (en)
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Norbert Hauser
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Individual
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Individual
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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32426—Plural distinct positions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7047—Radially interposed shim or bushing

Definitions

  • ABSTRACT A ski pole of adjustable length with two telescopic tubular pole sections which may be axially locked h other by means of a clamping element.
  • ement is a pressure element of nonmetallic materithe crosssectional area of which is undivided and may be increased by reducing the axial length of the pressure element.
  • a surface of the pressure element m6 m s m .mm w a add mmm 1/1 171 Wnx 2 A 7 H mm T m G u u N m m E n n L m m E m m u m mm mm m m D W m N Am m m FD m m 08 m m E v m m mm m k a G [C m K3 m SI. U l M .n. H 5 U r i can directly engage the wall [50] FieldofSearch..... 280/1137; ,124; l/45.45(T). 248/1885, 16];
  • Such a ski pole is known.
  • lts clamping element features a conical body which is secured to theend of the inner tube forming the lower pole section and the free end of which carries a threaded bolt.
  • the outer tube forming the upper pole section has inserted in it an expanding nut which is movable under frictional resistance and which, when the two pole sections are rotated relatively to each other, is screwed onto the screw thread of the conical body and spread apart, pressing and locking the inner tube against the outer tube.
  • This design has the disadvantage that the torque forscrewing the, expanding nut on the screw thread of the conical body must be transferred by frictional contact from the outer tube section to the expanding nut.
  • the outer tube driving the expanding nut is provided with at least one groove engaging a projection on the expanding nut so that the connection between the driving tube and the driven expanding nut is positive rather than frictional. It is a disadvantage of this design that the inner profile of the tube must deviate from the form of a true circle while a circular shape is desirable for the outer profile of thetube. Tubes with such profiles are not commercially available and, therefore, expensive. Because of the deviation from the circular outer contour, the expanding nut cannot be turned on a lathe, which again increases the costs of production.
  • the clamping element in a further known ski pole of this kind the clamping element is of cylindrical shape and subdivided into two or more component parts which may be spread against each other by rotating the tubular pole sections, thereby producing the clamping effect between the pole sections.
  • the spreading effect is achieved by providing the component parts of the clamping element with cooperating inclined surfaces so that the cross-sectional area of the clamping element is composed of at least two parts.
  • This clamping element calls for a strong steel spring which brings the component parts together when the clamping element is released from the locked position.
  • the component parts are axially moved against each other, and thus clamped, by means of a threaded bolt and a nut disposed on one section of the pole with a nonpositive connection.
  • a disadvantage which the known types of ski poles have in common lies in the fact that they cannot be securely adjusted with hands numb with cold or with icy gloves, since roughness of movements of the clamping element will cause the hands or gloves to slip on the tubular sections. of the ski pole. This is particularly awkward when at the end of a day of skiing the skier wishes to slide the tube sections together in order to stow the poles away in the car.
  • this invention to eliminate the disadvantages of the known ski poles and to provide a ski pole which may be easily adjusted in length at any time and still ensures a safe lock.
  • this objective is achieved by providing as clamping element a pressure element of nonmetallic material, the cross-sectional area of which is undivided and may be increased by reducing the axial length of the pressure element.
  • the use of a pressure element which increases its cross-sectional area when its length is shortened provides a simple method of moving the actuation of the clamping arrangement away from thetube sections and into the grip of the pole, dispensing with a rotary motion since a longitudinal movement is all that is required.
  • actuation of the clampingelement may be so designed that the length of the pole may" be readily adjusted even under adverse circumstancesa
  • a nonmetallic material for the pressure element eliminates corrosion and resulting failures and troubles on this part.
  • a pressure element is i very cheap and easy to manufacture.
  • the pressure element may, for instance, consists of a hose section of a material having the elasticity of rubber, a requirement met by a plurality of materials, such as rubber, silicone rubber, soft PVC etc.
  • a surface of the pressure element directly engages the wall surface of the tubular pole section slidably disposed with respect to the pressure element, the materials of the pole section and the pressure element being so paired that a high coefficient of friction is attained.
  • one embodiment of the invention provides for the use of a tightly confined liquid, in particular hydraulic oil, for the pressure element.
  • a tightly confined liquid in particular hydraulic oil
  • the sealing problem can be considered as solved even for inexpensive mass-produced articles, as is proved by the example of the motor vehicle shock absorber.
  • one embodiment of theinvention provides for the liquid to be confined in a liquidtight bag. This bag has approximately the same shape as the surrounding cavity and seats against the wall so that it is not subjected to any special stresses since it merely transmits the pressure existing in the liquid to the surrounding walls, bridging small gaps and fis sures.
  • this bag also enables the pressure elements to be assembled and disassembled in a very simple and neat fashion inasmuch as there are no open liquids to be handled. Furthermore, the exact amount of liquid can be metered with ease and reliability.
  • the use of a liquid for the pressure element affords the substantial advantage of ensuring a completely uniform transmission of forces to the surrounding walls so that the tubular pole sections are properly locked against each other on a large area.
  • all embodiments of the invention enable the pressure element to be subdivided into several sections disposed one behind the other in the axial direction, which may afford certain advantages from an operational or production point of view.
  • a rod may be provided which pushes against one end of the pressure element which with its other end bears against a retainer which is axially fixed with respect to the surrounding tubular pole section.
  • An eccentric which displaces the rod relatively to the retainer may be accommodated in the pole grip.
  • a favorable arrangement is one in which the eccentric is operated by means of a lever which, with the clamping element in the loaded position, seats against the pole grip or lies in a recess of the pole grip so that it does not interfere with the use of the ski pole.
  • a lever is easy to operate at all times, even with hands that are numb with cold 5 or with icy gloves.
  • the position of the rod is longitudinally adjustable relatively to the eccentric.
  • This has the advantage that the lengths of the rod and the tube surrounding the rod need not be matched very accurately, since differences may be compensated by adjusting the position of the rod relative to the eccentric and thus also relative to the tube surrounding the rod, which tube is disposed in a fixed position with respect to the eccentric.
  • a further advantage lies in the fact that in this manner the tension of the pressure element may be readjusted at any time, e.g. when the tension of the pressure element has dropped as a result of aging. Furthermore, this arrangement enables the tension to be readily adapted to varying requirements.
  • a tension may be selected which while safely fixing the adjusted length of the pole during skiing will yield to unduly strong forces so that the pole is shortened in a telescoping motion.
  • the rod may be provided with an adjusting nut seated against the surface of the eccentric facing away from the pressure element, as envisaged in one embodiment of the invention.
  • the eccentric shaft may either be supported in the grip of the pole or the periphery of the eccentric, according to a further development of the invention, deviates from the form of a true circle and the circumference of the eccentric bears against a thrust plate.
  • the thrust plate may be provided with a depression which ensures that the eccentric will be reliably retained in the clamp and, possibly, also in the unclamped position.
  • the thrust plate may be of level construction if, according to a further embodiment of the invention, the eccentric is so guided in the ski pole as to be movablein the axial direction of the rod.
  • the sidewalls adjacent to the eccentric are provided with grooves extending in the axial direction of the rod, said grooves engaging pins secured to the eccentric.
  • the adjusting nut may be adjusted from outside.
  • the rod may be arranged for actuation by means of a screwable component located in the grip of the pole, said component engaging the rod end for axially shifting the rod relatively to the retainer.
  • the pole grip may be constructed in two parts, one part having secured to it one of the two tubular pole sections and the other part being provided with an internal thread which is screwed onto the rod provided with an external thread and thus produces an axial movement of the rod through a rotary motion.
  • the rod extends through the center of the pressure element and acts upon the end of the pressure element facing away from the grip of the pole while the retainer takes the form of a tube concentrically disposed to the rod and secured to the surrounding tubular pole section or the grip of the pole.
  • the rod acts on the end of the pressure element facing towards the grip of the pole and in which the retainer, against which the other end of the pressure element is seated, serves as an end cover which is axially fixed in the surrounding tubular pole section, said pole section forming the inner tube of the telescopic arrangement and being connected to the grip of the pole.
  • a practical arrangement for all embodiments of the invention is one in which a spring forces the rod into the unloaded or released position of the pressure element.
  • This spring can be dispensed with if the eccentric and that portion of the surface of the recess in the pole gn'p accommodating the eccentric which lies adjacent to the circumference of the eccentric are so designed that the rod will be forced into the position corresponding to the unloaded position of the pressure element when the eccentric is released.
  • the tube adjacent to the grip of the pole is the outer tube and the tube carrying the point of the pole is the inner tube of the telescopic arrangement. In this manner. thc ingress of snow or melted snow and ice into the interior of the telescopic arrangement is largely prevented without the use of any further auxiliary means.
  • end of the inner tube forming the lower pole section which fits in the outer tube is provided with a collar which, at the same time, serves as a stop and extension-limiting device so that the ski pole cannot be inadvertently disassembled into its two constituent tube sections, the ingress of dirt and major foreign bodies being thus positively prevented.
  • the ingress of dirt and other foreign bodies can also be prevented by fastening a scraper which covers the gap between the outer and inner tube sections at the end of the outer tube section, as envisaged in one embodiment of the invention.
  • a scraper having a scraper lip seated against the outer surface of the inner tube section and wiping off the dirt that may adhere to the tube of smaller diameter when the two tube sections are displaced with respect to each other.
  • a scraper ring is envisaged in a chamber formed by the two tube sections and the scraper. In this manner, a dust and liquid tight seal is provided at this point by which the interior of the pole may be sealed off against the outside.
  • FIG. I is a longitudinal section through part of a ski pole with the pressure element in the unloaded or released position
  • FIG. 2 shows the pressure element according to FIG. I in the loaded or applied position
  • FIG. 3 shows a pole grip with an eccentric as actuator for the pressure element
  • FIG. 4 shows a pole grip in two parts with a screw-type actuating arrangement for the pressure element
  • FIG. 5 shows a pressure element filled with liquid
  • FIG. 6 shows a scraper
  • FIG. 7 is a longitudinal section through another embodiment of the invention.
  • FIG. 8 is a section along line VIII-VIII of FIG. 7.
  • the adjustable-length ski pole features two telescopic tubular pole sections 1, 2.
  • the tube section 1 is fastened to a pole grip assembly 19 while the tube section 2 carries a snow ring and a point.
  • the pole grip assembly, the snow ring, and the point of the pole are not shown in the drawing.
  • the end of the tube section I facing away from the grip of the pole houses a pressure element 3 with a hose section 4 and an elastic sleeve 5 enveloping said hose section.
  • the hose section 4 may, for example, consist of rubber, silicone rubber, soft PVC, or similar materials.
  • the hose section 4 surrounds a tubular pull rod 6, a disc 7 having the same diameter as the hose section 4 being secured to the end of said pull rod by means of a cotter 8.
  • the end of the hose section 4 facing away from the grip of the pole seats against the disc 7.
  • the end of the hose section 4 facing towards the grip of the pole seats against a retainer in the form of a flange bushing 9 which is so disposed on the pull rod as to be free to move in the axial direction.
  • the flange bushing 9 seats against a tube 10 which concentrically surrounds the pull rod 6 and the other end of which fits in an end plate 11 which closes the tube section 1 towards the pole grip assembly 19 in which the tube section 1 is secured.
  • the end plate 11 is provided with a central bore through which passes the pull rod 6.
  • the pull rod 6 is axially movable with respect to the end plate 11.
  • the flange bushing 9 carries one end of the elastic sleeve 5 extending over the hose section 4 from the flange bushing 9 to the disc 7.
  • the disc 7 is slidably disposed within the elastic sleeve 5.
  • the tube is provided with two longitudinal slots arranged opposite each other in which a pin 12, the longitudinal centerline of which is disposed perpendicularly to the longitudinal centerline of the ski pole, is free to move in the axial direction of the ski pole.
  • the pin 12 is secured in a transverse bore of the pull rod 6.
  • a ring-shaped thrust washer 13 the inside diameter of which is greater than the outside diameter of the tube 10 and the outside diameter of which is smaller than the inside diameter of the tube section 1, is pressed against the pin 12 by a compression spring 14 which with its other end bears against the end plate 11.
  • the compression spring 14 thus pushes the pull rod 6 in the direction of the point of the ski pole.
  • the end portion of the tube section 2 facing away from the point of the ski pole lies inside the tube section 1.
  • this tube section 2 is provided with a collar 15, the inside diameter of which is smaller than the outside diameter of the flange bushing 9 so that the flange bushing 9 forms a stop for the tube section 2 when this tube section is extended.
  • the outside diameter of the inner tube and the inside diameter of the outer tube of the two tube sections forming the outside of the ski pole are so matched that the two tube sections can telescope with ease.
  • the inside diameter of the inner tube section is slightly larger than the outside diameter of the unloaded pressure element 3.
  • the tube end of the inner telescopic tube may be provided with longitudinal slots in the zone of the pressure element.
  • the pole grip assembly 19 shown in FIG. 3 features a onepart hand-conforming-shaped grip 20, preferably made of plastic, in which the tube section 1 and the end plate 11 are fastened.
  • This grip is provided with a recess into which projects the end of the pull rod 6 which through an eccentric shaft 21 is connected to an eccentric lever 22.
  • the eccentric lever assumes the position indicated by the dot-dash lines, whereas in the loaded condition of the pressure element it is located in a longitudinal recess of the grip so as not to disturb the handconforming contour of the grip 20.
  • a slightly curved end 23 of the eccentric lever 22 projects from the pole-side end of the grip 20 so that the eccentric lever 22 may be readily swung out of the recess in the grip 20.
  • a strap 25 is fastened to the outer end of the grip 20 by means of a screw 24.
  • the eccentric lever 22 With the pressure element in the unloaded position, the eccentric lever 22 is in the position indicated by the dash-dot lines, the compression spring 14, through the thrust washer 13 and the pin 12, pushes the pull rod 6 in the direction of the pole point. In order to load the pressure element 3, the eccentric lever is swung towards the grip, and eccentric surface 26 bearing against the end plate 11 and moving the pull rod 6 towards the grip by means of the eccentric shaft.
  • the pull-rod-actuating arrangement shown in F IG. 4 one grip end 30 is separated from the grip 20 so that the grip as sembly 19 consists of two parts.
  • the pull rod 6 is provided with a threaded bolt 31 at the outer end of which is secured a snapring 32 which prevents a nut 33 from being screwed beyond the end of the threaded bolt 31.
  • the nut 33 is positively embedded in the grip end 30 and is screwed by turning the grip end 30 which may feature a noncircular cross section or a folding handle.
  • One end face of the nut 33 bears against the end plate 11, such that the pull rod 6 may be moved in the axial direction by rotating the sturdily constructed, handy grip section 30, the pressure element being thus loaded or unloaded so as to clamp or unclamp the twotube sections 1, 2 with respect to each other.
  • FIG. 57 Another embodiment of the clamping arrangement according to this invention, in which the pressure element takes the form of a chamber filled with a liquid. is shown in FIG. 57
  • the chamber 40 is located in the end ofthe tube section 1 facing away from the pole grip assembly 19, said tube section 1 forming in this embodiment of the invention, the inner tube of the telescopic assembly, the tube section 2 being slid over the tube section 1.
  • the chamber 40 is closed by an end cover 36 sealed with an O-ring 37.
  • the end of the tube section 1 is flanged inward and restrains the end cover 36 against axial displacement in the direction of the pole point.
  • the grip-side end of the chamber 40 is closed by a piston 38 sealed by means of an O-ring 39.
  • the chamber 40 contains a liquid, e.g. hydraulic oil. If the liquid in the chamber 40 is confined ina liquidtight bag, the O rings 37, 39 may be dispensed with, since in that case the sealing requirements are not very exacting,
  • the piston 38 is actuated by means of a rod 41 which corresponds to the pull rod 6 of the other embodiments shown except that, unlike to what occurs in the other embodiments, the pressure element is loaded when the push rod 41 is moved in the direction of the pole point and unloaded when said rod is moved in the opposite direction.
  • a scraper 42 is secured to the end of the outer tube section, that portion of said scraper which projects beyond the end of said tube section being reduced to approximately the diameter of the inner tube section. This end forms a scraper lip 45 which contacts, or almost contacts, the outer surface of the inner tube section 2,
  • the outer tube section 1, the inner tube section 2, and the scraper 42 together define a chamber 43 which contains a scraper ring 44, e.g. a felt ring or oil seal.
  • the eccentric setting is adjustable, permitting the load on the pressure element to be selected according to varying requirements.
  • the pull rod 6 is provided with an extension and passed through a slotted eccentric lever 64.
  • the end which faces towards the eccentric is provided with a screw thread onto which is screwed an adjusting nut 51.
  • This adjusting nut 51 seats against an eccen tric surface 52 of the eccentric lever 64 which at its other end bears against the end plate 11.
  • An advantageous design is one in which the eccentric lever 64 is provided with two eccentric surfaces, one eccentric surface 65 bearing against the end plate 11 and the other eccentric surface 52 cooperating with an end face of the adjusting nut 51, thus increasing the stroke of the eccentric.
  • the adjusting nut 51 is provided with a slot 53 engaged by a driver 54 which is rotatably supported in the pole grip assembly 19 by means of a collar 55.
  • the end of the driver facing away from the adjusting nut 51 extends all the way to the upper end of the pole grip assembly 19 and is provided with a slot 56 in this final portion.
  • the pole grip assembly 19 features a spherical depression 57 which enables a coin 68 to be inserted into the slot 56 so that the driver 54 and thus the adjusting nut 51 may be rotated with the aid of this coin, with the result that the rod 61 may be moved in the axial direction.
  • said eccentric lever 64 at both cheeks or webs 66 and 67 defining the slot on either side, is provided with one retaining pin 58 or 59 slidably disposed in a groove 60 or 61 respectively.
  • the grooves 60 and 61 are worked into the pole grip assembly 19 or else, e.g. with a compression or injection molded plastic pole grip, into metal plates 62 and 63 set into the pole grip assembly 19, e.g. during the injection moulding process.
  • the grooves 60 and 61 extend in the longitudinal direction of the pole so that the eccentric lever 64, which may be swiveled about the retaining pins, while being free to move in the longitudinal direction of the pole when the eccentric is operated, is prevented from moving transversely to that direction, such that the eccentric lever 64 cannot get lost.
  • the application of the present invention is not restricted to ski poles. It can alsobe used for the retention of tripods, tent poles, or other telescopic rods including e.g; stretcher frames.
  • a ski pole according to claim 1 characterized in that the pole grip assembly houses an eccentric which displaces said rod with respect to said retainer and the longitudinal position of said rod is adjustable with respect to said retainer.
  • a ski pole according to claim 2 characterized in that said rod is provided with an adjusting nut which seats againstthe surface of said eccentric facing away from said pressure element.
  • a ski pole according to claim 2 characterized in that the periphery of said eccentric deviates from the form of a true circle and in that the circumference of said eccentric bears against a thrust plate.
  • a ski pole according to-claim 2 characterized in that said eccentric is so guided in the ski pole as to be movable in the .axial direction of said rod.
  • a ski pole according to claim 2 characterized in that said adjusting nut may be adjusted from the outside.
  • a ski pole according to claim 2 characterized in that said eccentric and the surface of the recess in said pole grip assembly, which accommodates said eccentric are so designed that said rod will be forced into the position corresponding to the unloaded position of said pressure element when said eccentric is released.
  • a ski pole according to claim 7. characterized in that the end of the inner tubular pole section inside the outer tubular pole section is provided-with a collar, said collar simultaneously serving as astop and extension-limiting device.
  • a ski pole according to claim 1 characterized in that a component which may be screwed in the axial direction is disposed in a pole grip assembly, said component engaging the end of said rod for axially displacing said rod with respect to said retainer.
  • a ski pole according .to claim 1 characterized in that said rod extends through the center of said pressure element and acts upon the end of said pressure element facing away from a pole grip assembly and in that said retainer is provided with a tube concentrically disposed with respect to said rod and secured to the surrounding tubular pole section.
  • a ski pole according to claim 10 characterized in that a spring is provided which forces said rod into the unloaded or released position of said pressure element.
  • a ski poleaccording to claim ll characterized in that a scraper ring is provided in a chamber defined by the two tubu lar pole sections and said scraper.

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  • Mutual Connection Of Rods And Tubes (AREA)
US769924A 1967-10-31 1968-10-23 Ski pole of adjustable length Expired - Lifetime US3556544A (en)

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Application Number Priority Date Filing Date Title
DEH0064326 1967-10-31

Publications (1)

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US3556544A true US3556544A (en) 1971-01-19

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US769924A Expired - Lifetime US3556544A (en) 1967-10-31 1968-10-23 Ski pole of adjustable length

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US (1) US3556544A (enrdf_load_stackoverflow)
AT (1) AT284685B (enrdf_load_stackoverflow)
CH (1) CH467086A (enrdf_load_stackoverflow)
DE (1) DE1578795A1 (enrdf_load_stackoverflow)
FR (1) FR1587271A (enrdf_load_stackoverflow)
SE (1) SE358090B (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797845A (en) * 1970-02-12 1974-03-19 A Kepka Safety ski pole
US3940134A (en) * 1972-12-08 1976-02-24 Bieganowski Leo M Hockey stick handle device
US3960382A (en) * 1975-09-08 1976-06-01 Lawrence Peska Associates, Inc. Ski pole with retractable point
US4108461A (en) * 1977-04-05 1978-08-22 Hopper James H Bicycle spindle
US4261591A (en) * 1979-06-18 1981-04-14 Warne Jr John P Fully triangulated, individual wheel suspension system
US5337771A (en) * 1992-08-17 1994-08-16 Rudiger Berges Gmbh Umbrella with an improved handle
US5549329A (en) * 1995-01-18 1996-08-27 Life-Link International, Inc. Ski pole and removable hand grip
WO1996027413A1 (en) 1995-03-03 1996-09-12 Life-Link International, Inc. Telescoping ski pole and avalanche probe with improved locking mechanism
US6139060A (en) * 1995-12-19 2000-10-31 Lenhart; Klaus Handle for a stick
US20030222453A1 (en) * 2002-06-03 2003-12-04 Nogah Haramati Protective ski pole
US20100170547A1 (en) * 2009-01-05 2010-07-08 Easton Technical Products, Inc. Trekking pole clamp and methods
US20120012141A1 (en) * 2010-07-13 2012-01-19 Easton Technical Products, Inc. Shock absorbing system for trekking poles
CN112999643A (zh) * 2021-03-03 2021-06-22 哈尔滨体育学院 一种滑雪运动用调节式手握支架

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4448442A (en) * 1981-01-08 1984-05-15 Weber Henning Hans Longitudinally adjustable ski pole
EP0058848A1 (de) * 1981-02-19 1982-09-01 Hans Weber-Henning Skistock, der in der Länge verstellbar ist
FR2573318A1 (fr) * 1984-11-16 1986-05-23 Bibollet Jean Claude Baton de ski muni d'un dispositif de reglage en longueur de dragonne

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US641895A (en) * 1898-07-01 1900-01-23 Geo L Thompson Mfg Company Internal fastener for tubular telescoping parts.
US2456205A (en) * 1946-09-26 1948-12-14 Magder Jesse Ski pole
US2533733A (en) * 1943-12-22 1950-12-12 Jensen Hans August Extensible ski pole
GB700480A (en) * 1951-07-24 1953-12-02 Marno Sorensen Improvements in stands
GB767179A (en) * 1952-11-06 1957-01-30 Hans Gerlach Telescopic pit prop
US2842415A (en) * 1957-06-25 1958-07-08 Keller Gustave Paul Adjustable leg structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US641895A (en) * 1898-07-01 1900-01-23 Geo L Thompson Mfg Company Internal fastener for tubular telescoping parts.
US2533733A (en) * 1943-12-22 1950-12-12 Jensen Hans August Extensible ski pole
US2456205A (en) * 1946-09-26 1948-12-14 Magder Jesse Ski pole
GB700480A (en) * 1951-07-24 1953-12-02 Marno Sorensen Improvements in stands
GB767179A (en) * 1952-11-06 1957-01-30 Hans Gerlach Telescopic pit prop
US2842415A (en) * 1957-06-25 1958-07-08 Keller Gustave Paul Adjustable leg structure

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797845A (en) * 1970-02-12 1974-03-19 A Kepka Safety ski pole
US3940134A (en) * 1972-12-08 1976-02-24 Bieganowski Leo M Hockey stick handle device
US3960382A (en) * 1975-09-08 1976-06-01 Lawrence Peska Associates, Inc. Ski pole with retractable point
US4108461A (en) * 1977-04-05 1978-08-22 Hopper James H Bicycle spindle
US4261591A (en) * 1979-06-18 1981-04-14 Warne Jr John P Fully triangulated, individual wheel suspension system
US5337771A (en) * 1992-08-17 1994-08-16 Rudiger Berges Gmbh Umbrella with an improved handle
US5549329A (en) * 1995-01-18 1996-08-27 Life-Link International, Inc. Ski pole and removable hand grip
WO1996027413A1 (en) 1995-03-03 1996-09-12 Life-Link International, Inc. Telescoping ski pole and avalanche probe with improved locking mechanism
US6139060A (en) * 1995-12-19 2000-10-31 Lenhart; Klaus Handle for a stick
US20030222453A1 (en) * 2002-06-03 2003-12-04 Nogah Haramati Protective ski pole
US6827370B2 (en) * 2002-06-03 2004-12-07 Nogah Haramati Protective ski pole
US20100170547A1 (en) * 2009-01-05 2010-07-08 Easton Technical Products, Inc. Trekking pole clamp and methods
US8006711B2 (en) 2009-01-05 2011-08-30 Easton Technical Products, Inc. Trekking pole clamp and methods
US20120012141A1 (en) * 2010-07-13 2012-01-19 Easton Technical Products, Inc. Shock absorbing system for trekking poles
US8528577B2 (en) * 2010-07-13 2013-09-10 Easton Technical Products, Inc. Shock absorbing system for trekking poles
CN112999643A (zh) * 2021-03-03 2021-06-22 哈尔滨体育学院 一种滑雪运动用调节式手握支架
CN112999643B (zh) * 2021-03-03 2022-04-19 哈尔滨体育学院 一种滑雪运动用调节式手握支架

Also Published As

Publication number Publication date
CH467086A (de) 1969-01-15
AT284685B (de) 1970-09-25
SE358090B (enrdf_load_stackoverflow) 1973-07-23
DE1578795A1 (de) 1971-04-08
FR1587271A (enrdf_load_stackoverflow) 1970-03-13

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