EP0106645A1 - Kletterkeil - Google Patents

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Publication number
EP0106645A1
EP0106645A1 EP83306105A EP83306105A EP0106645A1 EP 0106645 A1 EP0106645 A1 EP 0106645A1 EP 83306105 A EP83306105 A EP 83306105A EP 83306105 A EP83306105 A EP 83306105A EP 0106645 A1 EP0106645 A1 EP 0106645A1
Authority
EP
European Patent Office
Prior art keywords
side face
chock
climbing
edge walls
convexly
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Withdrawn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
EP83306105A
Other languages
English (en)
French (fr)
Inventor
Stephen Paul Bean
Mark Vallance
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.)
CAMTEC Ltd
Original Assignee
CAMTEC 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
Priority claimed from GB838301532A external-priority patent/GB8301532D0/en
Application filed by CAMTEC Ltd filed Critical CAMTEC Ltd
Publication of EP0106645A1 publication Critical patent/EP0106645A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B29/00—Apparatus for mountaineering
    • A63B29/02—Mountain guy-ropes or accessories, e.g. avalanche ropes; Means for indicating the location of accidentally buried, e.g. snow-buried, persons
    • A63B29/024—Climbing chocks

Definitions

  • This invention relates to climbing chocks.
  • a simple wedge shape has long been regarded as particularly effective.
  • Hedge shaped chocks are provided in a variety of sizes but the tapered angle tends to be constant to fit the taper of a crack in a rock structure, that experience teaches is likely to be encountered.
  • the chock is ideal in providing the greatest holding feature but this does not always occur.
  • a particular size of chock can be fitted into an appropriate crack, but there is point contact beween the chock and the crack because of the almost inevitable irregularities that would be present. This does not detract seriously from the effectiveness of the wedge shape which still cooperates with the general taper of the crack, usually to provide a number of points of contact.
  • the object of the present invention is to improve the traditional wedge shaped chock to render it more effective in an irregular generally tapered crack whilst maintaining a high degree of effectiveness in a smooth sided crack.
  • a climbing chock comprises a generally wedge shaped body, a longitudinal side face on the body, edge walls on the body extending from each side of the side face and merging at a distance from the side face, said side face and said point where said edge walls merge being respectively convexly and concavely or respectively concavely and convexly curved in the longitudinal direction.
  • the edge walls may be arcuate and meet at an "apex" at a distance from the side face.
  • Each transversely arcuate edge wall may be struck from a different centre when the transverse cross-sectional shape of the chock becomes generally triangular, or both transversely arcuate edge walls may be struck from the same centre to produce a cross-sectional shape that is generally that of a segment of a circle and when the apex is to be regarded as the point on the periphery of the chock furthest from the side face.
  • the side face and the apex that are either oppositely convex or concave or oppositely concave and convex in the longitudinal direction with respect to the side face.
  • the merging of the edge walls can be into an opposite longitudinal side face, to produce a chock that is, in the transverse plane, generally rectangular, and when it is the side face and the opposite side face that are either oppositely convex and concave or concave and convex in the longitudinal direction.
  • the chock may have a side face that is flat in the lateral direction but which may itself be laterally concavely curved over all of or part of its width.
  • the edge walls may be convexly curved in the longitudinal direction.
  • a climbing chock comprises a generally wedge-shape body and an attachment for a climbing rope, said attachment being secured to the body and extending from the narrower end of the body in line with the longitudinal axis of the body, said body having a side face generally parallel to the major lateral axis of the body and edge faces extending from the side face said edge faces merging into an opposite side face, said side face and opposite side face being respectively concavely and convexly curved or convexly and concavely curved and meeting at a point at the narrower end of the body, and said edge faces each being convexly curved in the longituinal direction and meeting at the same point at the narrower end of the body, and there being a flat end face at the broader end of the body.
  • the flat end face may lie at substantially 90° to the side face but it is highly desirable to have that end face angled at approximately 15° to the horizontal downwardly towards the side face when convex or opposite side face when convex as the case may be.
  • the said side face in addition to being either convexly or concavely curved in the direction of the longitudinal axis may additionally be concavely curved in the direction of the major lateral axis of the body or, particularly when that side is convexly curved, may be provided with-a centrally located generally concave depression.
  • the said edge faces may be continuously convexly curved longitudinally from the thicker end of the body to their meeting point at the thinner end of the body. It may however be preferable for the convex curve of each edge face to merge into a concave curve towards the thinner end of the body to produce a distinct tail at the thinner end of the body.
  • a climbing chock is formed by a generally wedge shaped body 1 having a longitudinal side face 2 and edge walls 3 extending from each side of the side face.
  • the edge walls are arcuate and meet at an apex 4 at a distance from the side face.
  • the side face 2 is, in the longitudinal direction, of convex shape, and the longitudinal line of the apex 4 is oppositely of concave shape as can be seen more particularly in Figure 2.
  • the body 1 of the chock again has a side face 2 and edge walls 3 of arcuate form meeting at an apex 4.
  • the side face 2 is, in the longitudinal direction of concave form and the apex where the arcuate edge walls merge oppositely of convex form.
  • the edge walls 3 of arcuate form can have the arcs struck from different centres. This has the effect of producing a chock which in the transverse plane is generally triangular, as is indicated in the forms of construction indicated by Figures 5 to 8. However as is indicated in Figures 9 to 11 it is equally possible for the arcuate edge walls to be struck from the same centre and when they merge at an apex which is to be taken as the point on the curve furthest from the side wall 2.
  • the side wall 2 whilst,being either convex or concave in the longitudinal direction may be straight in the transverse plane.
  • the side wall 2 itself to be of concave form in the lateral plane either over the whole of its width and height or over a part thereof.
  • the side wall 2 can be provided with a transversly flat-bottomed recess extending over part of or all of its height.
  • the climbing chock again has a body 1 with a side wall 2 and edge walls 3.
  • the edge walls 3 are generally parallel in the transverse plane adjacent the side wall 2 and merge in an opposite side face 5 at a distance from the side wall 2.
  • the edge walls 3 are of convex form in the longitudinal direction such that in conjunction with the longitudinally concave side face 2 and longitudinally convex opposite side face 5 the side faces and the edge faces meet at a point 6 at the lower end of the-body.
  • a flat end face 7 is provided that is angled at approximately 15 0 to the horizontal downwardly towards the convexly formed opposite side face 5.
  • the body 1 of the chock has a side face 2 and edge walls 3 that merge into an opposite side face 5.
  • the side face 2 is longitudinally convex and the opposite side face 5 longitudinally concave and which, in conjunction with edge walls that are again longitudinally convex the walls meet at a point 6 at the lower end of the body.
  • the flat end face 7 is inclined downwardly at 15° to the horizontal towards the longitudinally convex side face 2.
  • Figure 12 indicates that the side face 2 can additionally be of concave form in the lateral plane whereas Figure 13 indicates that the side face 2 may be provided with a concave recess over part of its width and length.
  • Figure 14 shows a form of construction following the principle of Figure 12 but utilising arcuate side walls as is shown in the embodiments of Figures 1 to 11.
  • Figures 12 to 14 additionally show the connection of an attachment for a climbing rope.
  • a wire loop 8 is provided, the free ends of which are secured in holes 9 extending through the body of a chock in line with the longitudinal axis of the body, with the arms of the loop extending out of the body from its narrower end.
EP83306105A 1982-10-08 1983-10-07 Kletterkeil Withdrawn EP0106645A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8228866 1982-10-08
GB8228866 1982-10-08
GB838301532A GB8301532D0 (en) 1983-01-20 1983-01-20 Climbing chocks
GB8301532 1983-01-20

Publications (1)

Publication Number Publication Date
EP0106645A1 true EP0106645A1 (de) 1984-04-25

Family

ID=26284074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83306105A Withdrawn EP0106645A1 (de) 1982-10-08 1983-10-07 Kletterkeil

Country Status (1)

Country Link
EP (1) EP0106645A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6273379B1 (en) * 2000-05-09 2001-08-14 Metolius Mountain Products, Inc. Climbing nut
FR2864790A1 (fr) * 2004-01-06 2005-07-08 Zedel Coinceur pour l'escalade et l'alpinisme

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946975A (en) * 1975-04-09 1976-03-30 Lyman Jr Thomas G Climber's chockstone
US4082241A (en) * 1976-06-17 1978-04-04 John Brent Burkey Chock for mountain climbing
DE3126346A1 (de) * 1981-07-03 1983-01-20 Salewa Sportgeräte GmbH, 8000 München Bergsteiger-klemmkeil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946975A (en) * 1975-04-09 1976-03-30 Lyman Jr Thomas G Climber's chockstone
US4082241A (en) * 1976-06-17 1978-04-04 John Brent Burkey Chock for mountain climbing
DE3126346A1 (de) * 1981-07-03 1983-01-20 Salewa Sportgeräte GmbH, 8000 München Bergsteiger-klemmkeil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PIT SCHUBERT "Alpine Felstechnik", 3rd edition, 1982, BERGVERLAG RUDOLF ROTHER, Munchen pages 58,59,78 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6273379B1 (en) * 2000-05-09 2001-08-14 Metolius Mountain Products, Inc. Climbing nut
US6493922B2 (en) 2000-05-09 2002-12-17 Metolius Mountain Products, Inc. Climbing nut
FR2864790A1 (fr) * 2004-01-06 2005-07-08 Zedel Coinceur pour l'escalade et l'alpinisme

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19840517

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870430

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BEAN, STEPHEN PAUL

Inventor name: VALLANCE, MARK