WO1999003543A1 - Dispositif d'ancrage - Google Patents

Dispositif d'ancrage Download PDF

Info

Publication number
WO1999003543A1
WO1999003543A1 PCT/SE1998/001372 SE9801372W WO9903543A1 WO 1999003543 A1 WO1999003543 A1 WO 1999003543A1 SE 9801372 W SE9801372 W SE 9801372W WO 9903543 A1 WO9903543 A1 WO 9903543A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
gripping
anchoring device
operating rod
rod
Prior art date
Application number
PCT/SE1998/001372
Other languages
English (en)
Swedish (sv)
Inventor
Jonas Ekstrand
Jonas Eriksson
Patrik Fryklund
Original Assignee
Componova Ab
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 Componova Ab filed Critical Componova Ab
Priority to AU83686/98A priority Critical patent/AU8368698A/en
Publication of WO1999003543A1 publication Critical patent/WO1999003543A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2207—Sockets or holders for poles or posts not used
    • E04H12/2215—Sockets or holders for poles or posts not used driven into the ground
    • E04H12/223—Sockets or holders for poles or posts not used driven into the ground with movable anchoring elements; with separately driven anchor rods
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/06—Apparatus for setting-out or dividing courts
    • A63C19/062—Slalom gate poles, posts or marking sticks for sport fields
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
    • E01F9/673—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for holding sign posts or the like
    • E01F9/685—Subsoil means, e.g. foundations

Definitions

  • the present invention relates to an anchoring device for a slalom pole according to the preamble to appended claim 1.
  • Slalom poles are anchored in a base which usually is a layer of snow or ice on a ski-slope.
  • the anchoring is made by drilling a hole in the base, whereupon the pole or an anchoring device connected to the pole is fixed in the base.
  • the slalom pole It is desirable for the slalom pole to be fixable in and removable from the base in a quick and easy manner.
  • a slalom pole fixed in the base must be held in a stable manner even if subjected to impacts and blows, for instance when a skier runs into it.
  • EP-0 063 254 discloses a slalom pole with an anchoring device of the type stated by way of introduction, in which a threaded operating rod with a conical end can be screwed into an internally conical gripping sleeve with a view to expanding the gripping sleeve to engage in a surrounding layer of snow.
  • This anchoring device suffers from the drawback that it takes a long time to screw it in position and also to unscrew it. Further the operating rod of a fastened anchoring device of this type may be unscrewed when subjected to blows and impacts, and then the associated slalom pole is no longer firmly anchored. Moreover the tendency towards this kind of self-unscrewing increases by the fact that the operating rod in the fastened position is all the time subjected to an unscrewing force caused by the tension in the expanded gripping sleeve.
  • An object of the present invention is to provide an improved anchoring device for a slalom pole.
  • a special object is to provide an anchoring device which can quickly and easily be fixed in and removed from a base on a ski slope.
  • the inventive anchoring device thus comprises an operating rod which is axially slidably movable between a resting position and a gripping position in a gripping sleeve provided with axial slots.
  • the outside of the rod or the inside of the sleeve is formed with at least one tapering portion, i.e. a portion, in which the area of the radially extending cross-section which is defined by the contour of the surface decreases in an axial direc- tion.
  • the tapering portion is arranged such that the gripping sleeve, by cooperation between said outside and said inside, at least partially is radially expanded in the gripping position.
  • Stop means are arranged to prevent displacement of the operating rod past the resting posi- tion and the gripping position, respectively.
  • a holding means in the form of a snap means or a friction means is arranged to hold the operating rod in the gripping position.
  • the anchoring device can quickly and easily be moved between the resting position and the gripping position in a linear motion.
  • the stop means define end positions of the axial motion, a resting position and a gripping position, and prevent mutual displacement between the operating rod and the gripping sleeve past one of the end positions. It is simultaneously ensured that the operating rod and the gripping sleeve remain an assembled unit, both when using and during storage and transport of the anchoring device.
  • the stop means can advantageously be designed as axially directed, cooperating abutment surfaces of the gripping sleeve and the operating rod, respectively.
  • the holding means ensures that the operating rod is not unintentionally removed from the gripping position.
  • the anchoring device can thus be stably anchored in a base on a ski slope and remain stably anchored even if subjected to impacts and blows.
  • the holding means can be designed either as a snap means with two cooperating parts snapping together in the gripping position, or as a friction means generating high friction between the sleeve and the rod in the gripping position. Preferred embodiments of the invention are stated in the subclaims.
  • the gripping sleeve comprises slots extending from one end.
  • the tapering portion is arranged to expand the gripping sleeve in the slotted area.
  • the two ends of the gripping sleeve be slotted and that two tapering portions be arranged to expand, in the gripping position, a slotted area each of the gripping sleeve.
  • the two tapering portions are preferably arranged such that the gripping sleeve in the gripping position is expanded over the major part of its length.
  • the sleeve has on its inside a downwardly tapering surface portion in the area of its lower slots, and the operating rod has a downwardly tapering portion in an upper area to cooperate, in the gripping position, with the upper slots of the gripping sleeve.
  • a radially outwardly extending abutment means is arranged on the grip- ping sleeve at the upper end thereof.
  • This abutment means defines, by engaging the base, the end position for the insertion of the sleeve into the base when the device is in the resting position.
  • Fig. 1 is a side view of a gripping sleeve
  • Fig. 2 is a longitudinal section of the gripping sleeve in Fig. 1;
  • Fig. 3 is a top plan view of the gripping sleeve, seen along III-III in Fig. 1;
  • Fig. 4 is a side view of an operating rod
  • Fig. 5 is a side view of the operating rod according to Fig. 4, the operating rod being rotated through 45° about its longitudinal axis relative to the side view shown in Fig. 4;
  • Fig. 6 is a longitudinal section of the operating rod according to the view shown in Fig. 4;
  • Fig. 7 is a longitudinal section of the operating rod according to the view shown in Fig. 5, a portion of the outside of the operating rod being shown on a larger scale;
  • Fig. 8 shows, in a resting position, an anchoring device with operating rod and gripping sleeve assembled;
  • Fig. 9 shows the anchoring device according to Fig. 8 in the gripping position. Description of an Embodiment of the Invention
  • Figs 1-3 show a gripping sleeve 10 belonging to an anchoring device according to the invention.
  • the sleeve 10 When in use, the sleeve 10 is adapted to cooperate, with its outside, with a surrounding base in a fixing hole, which can either be predrilled or formed as the gripping sleeve 10 is being driven in.
  • the sleeve is adapted to be connected with a slalom pole via an operating rod extending on the inside of the sleeve.
  • the sleeve 10 which preferably is made of plastic or some other elastic material which to some extent is rigid, is elongate and circular in cross-section and has a lower and an upper end 19, 20. At the upper end 20, the sleeve 10 has an upper flange portion 23 comprising a radially projecting annular flange 24 and an annular shoulder 25 extending axially upwards from the circumference of the flange.
  • the flange portion 23 defines two upwardly directed abutment surfaces 13 and a downwardly directed abutment means 9. The function of the flange portion will be described in more detail below.
  • the sleeve 10 From the flange portion 23 in the upper end 20 of the sleeve 10 extends a straight upper sleeve portion 26, in which the internal surface of the sleeve 10 is cylindrical, downwards to a conical portion 27.
  • the sleeve 10 has axially extending slots 16.
  • the slots 16 which are four in number and are distributed at an angle of 90° relative to each other, extend from the upper end 20 to the conical portion 27. Thanks to the slots 16 and the elasticity of the sleeve material, the sleeve 10 is radially expandable in the upper portion 26.
  • An annular recess 14 is formed on the inside of the sleeve 10 in the upper portion 26 to serve, in cooperation with a corresponding means on the operating rod, as a holding means, as will be described in more detail below.
  • the sleeve has a down- wardly tapering inner surface portion in the form of a truncated conical portion 11.
  • the conical portion 27 extends to a straight lower portion 28, in which the truncated conical surface portion 11 passes into a cylindrical surface which has a smaller diameter than the cylindrical surface in the upper portion 26.
  • the sleeve 10 Adjacent to the conical portion 27 and the lower portion 28, the sleeve 10 has radially projecting engaging means in the form of circumferentially extending engaging flanges 17, which are adapted to ensure a stable engagement in a surrounding base and to prevent unintentional withdrawal of the sleeve 10.
  • the sleeve 10 can be provided with axially extending engaging ribs (not shown) to ensure a non-rotatable engagement in the base.
  • the lower portion 28 is terminated in the lower end 19 of the sleeve 10 with a pointed portion 29, which extends conically downwards from a lower engaging flange 17 and is adapted to facilitate insertion into a base.
  • a pointed portion 29 extends conically downwards from a lower engaging flange 17 and is adapted to facilitate insertion into a base.
  • the internal surface of the sleeve tapers further such that the opening in the lower end has but a small area. This limits the risk of snow and ice penetrating into the sleeve during insertion into a base, thereby facilitating the operation of the operating rod.
  • Lower axial slots 15 extend from the lower end upwards a distance past the conical portion 27.
  • the slots 15 allow radial expansibility in the lower area of the sleeve 10.
  • the fact that the slots 15, 16 overlap each other results specifically in radial expansibility over the entire length of the sleeve 10. This enables, inter alia, simple assembly of the sleeve and the rod.
  • the upper and lower slots define intermediate legs 7, 8, such that the sleeve 10 is expanded by outwards bending of the legs 7, 8. Below follows a detailed description of the operating rod 30 with reference to Figs 4-7.
  • the operating rod 30, which is also advantageously made of plastic, is adapted to be inserted in the gripping sleeve 10 and, at its upper end 40, to be connected to a slalom pole at an invariable axial distance.
  • a stepped, radially projecting flange portion 43 which comprises abutment surfaces 33 and is adapted to cooperate with the flange portion 23 of the gripping sleeve 10.
  • the operating rod 30 has a tapering portion, extending from the flange portion 43, in the form of a trun- cated conical surface portion 31 with a small angle of inclination.
  • the conical portion 31 extends to a radially projecting annular flange 34 which is triangular in longitudinal section, as showed on a larger scale in connection with Fig. 7.
  • the annular flange 34 is adapted to form, in cooperation with the annular recess 14 of the sleeve 10, a holding means, as will be described below with reference to Fig. 9.
  • a straight cylindrical lower portion 36 of the rod From the flange 34 extends a straight cylindrical lower portion 36 of the rod to a lower end 39 of the rod.
  • stop lugs 41 which have upwardly directed abutment surfaces 32 to form stop means, in cooperation with the abutment surfaces 12 of the lower slots of the sleeve 10.
  • the stop lugs 41 also serve to hold the sleeve and the rod in a non-rotatable relationship.
  • Fig. 8 illustrates the anchoring device in an assembled state and in a resting position A, i.e. a position in which the device is intended to be located when being inserted into a base.
  • the rod 30 In the resting position, the rod 30 is partially inserted into the sleeve 10, which is unexpanded and non-tensioned, and is prevented from being withdrawn by cooperation between the axial abutment surfaces 12, 32 facing each other.
  • the entire device When mounting the anchoring device, the entire device is introduced into the base, preferably in a pre- drilled hole, in the direction of arrow C, which corresponds to the downward direction.
  • the lower portion 28 of the sleeve 10 is radially compressed thanks to the clearance formed by the slots 15.
  • a certain mutual resistance to axial displacement between the rod and the sleeve exists and is emphasised by the radial pressing in of the lower portion 28, and therefore the entire device can be moved downwards in an essentially unchanged relationship until the upper flange portion 23 of the sleeve, said flange portion serving as abutment means, comes into engagement with the base. This prevents the gripping sleeve 10 from being moved further down in the hole.
  • an operating means (not shown) , for instance in the form of an annular tread flange of the slalom pole, can be connected to the operating rod to facilitate displacement of the operating rod relative to the gripping sleeve.
  • Fig. 9 shows the anchoring device in the gripping position B, in which the rod 30 is prevented from being moved further downwards (direction C) owing to the cooperation between the opposing abutment surfaces 13, 33.
  • the lower straight portion of the rod abuts against the conical portion 11 of the sleeve 10, which means that the lower portion 28 of the sleeve 10 is radially expanded or extended.
  • the conical portion 31 of the rod 30 abuts against the upper straight portion 26 of the sleeve 10, which results in a radial expansion of the upper portion 26 of the sleeve.
  • the lower portion be more expanded than the upper portion in the gripping position.
  • the individual legs are movable to some extent, and therefore the anchoring device can, when affected from outside, for instance when being run into, in itself, i.e. in the legs, absorb late- ral forces. This reduces the influence on the hole.
  • the recess 14 cooperates with the flange 34 as a snap lock in the gripping position to serve as holding means and hold the sleeve and the rod in an invariable axial relationship.
  • the anchoring device When the anchoring device is to be released from the base, it suffices to pull the slalom pole (not shown) , which is connected to the rod 30, straight upwards (arrow D) by applying sufficient force to overcome the snap lock function of the holding means between the flange 34 and the recess 14. Then the rod 30 is moved upwards relative to the sleeve 10 to the resting position, whereupon the entire anchoring device can be removed from the hole.
  • the scope of protection of the invention is not limited to the embodiment shown.
  • the number of tapering portions for expanding the gripping sleeve is not limited to two. Nor need the tapering portions have a truncated conical shape.
  • the anchoring device is preferably moved to the gripping position by a down- ward movement of the operating rod, it is also possible to use an inverse motion, in which case the tapering portion tapers off in the opposite direction.
  • the cross-section of the anchoring device need not be circular. It may in many contexts be advantageous to have other cross-sectional shapes, for instance to achieve a non-rotational connection between the rod and the sleeve and/or between the sleeve and the surrounding base .
  • the dimensional relationship in the circumferential direction between slots 15, 16 and legs 8, 7 can be different.
  • the slots can thus have a greater width in the circumferential direction than the intermediate legs.
  • the anchoring device can be a separate part to be connected to a slalom pole.
  • the operating rod can in one piece consist _of the lower end of the slalom pole.
  • the anchoring device is suited for all types of slalom poles, both poles with a hinge and poles with no hinge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Dowels (AREA)
  • Piles And Underground Anchors (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

L'invention concerne un dispositif d'ancrage destiné à un piquet de slalom. Ce dispositif comprend une tige de commande (30) qui est mobile par glissement axial dans une enveloppe de fixation (10) extensible. La tige de commande (30), mobile entre une position de repos (A) dans une première position axiale et une position de fixation (B) dans une seconde position axiale, comprend des moyens d'arrêt (12, 32; 13, 33) destinés à empêcher le mouvement de la tige de commande au-delà de la position de repos (A) ou de la position de fixation (B). Au moins l'extérieur (36) de la tige (30) ou l'intérieur (18) de l'enveloppe (10) est doté au moins d'une partie effilée (11, 31) conçue de telle façon que l'enveloppe de fixation (10) est au moins partiellement extensible radialement dans la position de fixation (B) par coopération dudit extérieur (36) et dudit intérieur (18). L'enveloppe (10) est reliée de façon non rotative à la tige, et un moyen à déclic (13, 34) ou un moyen à frottement permet de maintenir la tige (30) dans la position de fixation (B).
PCT/SE1998/001372 1997-07-17 1998-07-13 Dispositif d'ancrage WO1999003543A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU83686/98A AU8368698A (en) 1997-07-17 1998-07-13 Anchoring device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9702737-9 1997-07-17
SE9702737A SE510645C2 (sv) 1997-07-17 1997-07-17 Förankringsanordning för en slalomkäpp

Publications (1)

Publication Number Publication Date
WO1999003543A1 true WO1999003543A1 (fr) 1999-01-28

Family

ID=20407770

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/001372 WO1999003543A1 (fr) 1997-07-17 1998-07-13 Dispositif d'ancrage

Country Status (3)

Country Link
AU (1) AU8368698A (fr)
SE (1) SE510645C2 (fr)
WO (1) WO1999003543A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7794175B2 (en) 2007-07-24 2010-09-14 Mbw Technologies Delineating pole having an anchoring base and spring cartridge for snow based applications
WO2011128602A1 (fr) * 2010-04-16 2011-10-20 Mbs - Adic Embase pour piquet et piquet comprenant une telle embase
ITBZ20120002A1 (it) * 2012-01-30 2013-07-31 Hartwig Kamelger Dispositivo di ancoraggio per paletti di delimitazione e di porta.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE698812A (fr) * 1966-05-23 1967-11-03
EP0063254A1 (fr) * 1981-04-18 1982-10-27 Gerd D. Maibach Piquet de sécurité de slalom
FR2607399A1 (fr) * 1986-11-28 1988-06-03 Curus Andrzej Dispositif de fixation sure, des piquets de slalom et de descente dans la neige et la glace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE698812A (fr) * 1966-05-23 1967-11-03
EP0063254A1 (fr) * 1981-04-18 1982-10-27 Gerd D. Maibach Piquet de sécurité de slalom
FR2607399A1 (fr) * 1986-11-28 1988-06-03 Curus Andrzej Dispositif de fixation sure, des piquets de slalom et de descente dans la neige et la glace

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7794175B2 (en) 2007-07-24 2010-09-14 Mbw Technologies Delineating pole having an anchoring base and spring cartridge for snow based applications
US7871221B2 (en) 2007-07-24 2011-01-18 Mbw Technologies, Llc Delineating pole having an anchoring base and spring cartridge for snow based applications
WO2011128602A1 (fr) * 2010-04-16 2011-10-20 Mbs - Adic Embase pour piquet et piquet comprenant une telle embase
FR2958959A1 (fr) * 2010-04-16 2011-10-21 Mbs Adic Embase pour piquet et piquet comprenant une telle embase
ITBZ20120002A1 (it) * 2012-01-30 2013-07-31 Hartwig Kamelger Dispositivo di ancoraggio per paletti di delimitazione e di porta.
WO2013113652A1 (fr) * 2012-01-30 2013-08-08 Oberhammer Michael Dispositif d'ancrage pour piquets de slalom et de délimitation

Also Published As

Publication number Publication date
SE9702737D0 (sv) 1997-07-17
SE510645C2 (sv) 1999-06-14
AU8368698A (en) 1999-02-10
SE9702737L (sv) 1999-01-18

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