| 词条 | Quickdraw |
| 释义 |
A quickdraw (also known as an extender) is a piece of climbing equipment used by rock and ice climbers to allow the climbing rope to run freely through bolt anchors or other protection while leading. The straight gate carabiner is clipped to the protection; a bent gate is used for the rope.[1] Quickdraws are manufactured with either a solid carabiner gate or a wire carabiner gate for its lighter weight. UseA quickdraw is a specific type of runner. Runners are used by rock and ice climbers to extend the distance between an anchoring device and the rope. A quickdraw consists of two carabiners connected by a semi-rigid material (sometimes called the "dogbone").[2] One carabiner connects to an anchoring device. The other carabiner connects to a rope. A quickdraw is differentiated from a simple open loop of webbing with 2 carabiners on it by the following attributes:
These two attributes differentiate a quickdraw from other types of runners. These two attributes are literally what makes this special type of runner "quick" to "draw". If either of these two elements is missing the runner is not a ″quickdraw″. The methods by which a quickdraw maintains gate orientation vary. The most popular method involves the use of an elastic polymer band around the outside of the point of connection between the carabiner and the semi-rigid material. The elastic band should only be installed on the rope-end, and not on the anchor end.[3][4] The elastic band is not a load-bearing element, and the carabiner must pass through the dogbone to hold body weight. Incorrect assembly has led to at least one death.[2] While historically the orientation of the gates varied, it is now generally recommended that both gates face the same direction, and that the quickdraw is clipped with both gates facing away from the climber's path. This lessens the chances of the carabiner getting "nose-hooked" and breaking, or of either carabiner unclipping, during a fall or due to rope drag.[5][3][6][4][7] References1. ^{{Cite book| edition = 1| publisher = Stackpole Books| isbn = 0-8117-2706-8| last = Hattingh| first = Garth| title = The Climber's Handbook| date = July 1998}} 2. ^1 {{Cite news|url=https://www.climbing.com/skills/prevent-quickdraw-failure/|title=Prevent Quickdraw Failure|work=Climbing Magazine|access-date=2018-08-14|language=en-us}} 3. ^1 {{Cite web|url=https://www.petzl.com/US/en/Sport/Positioning-the-quickdraw-and-clipping-the-rope|title=Positioning the quickdraw and clipping the rope|last=|first=|date=|website=Petzl USA|language=en-us|archive-url=|archive-date=|dead-url=|access-date=2018-08-14|quote=The carabiner gate must always face away from the climber's direction of travel. ... The anchor-end carabiner must be mobile (no STRING). The rope-end carabiner must be fixed (with STRING).}} 4. ^1 {{Cite web|url=http://www.spadout.com/a/face-those-gates/|title=Face Those Gates|last=Van Leuven|first=Chris|date=2014-06-27|website=Spadout|archive-url=https://web.archive.org/web/20140627173505/http://www.spadout.com/a/face-those-gates/|archive-date=2014-06-27|dead-url=|access-date=2018-08-14|quote=safer to keep the gates facing the same way ... it’s safest to keep the bottom carabiner fixed to the QD’s webbing with tape or a rubber O-ring, but not the top biner}} 5. ^{{Cite web|url=https://www.metoliusclimbing.com/pdf/carabiner_manual.pdf|title=Metolius carabiners manual|last=|first=|date=|website=|archive-url=|archive-date=|dead-url=|access-date=|quote=In most situations ... the gates of both carabiners should face away from the direction of travel of the climber.}} 6. ^{{Cite book|url=https://www.worldcat.org/oclc/903189054|title=Rock climbing : technique, equipment, safety, with an introduction to indoor climbing|last=Heise-Flecken|first=Detlef|last2=Flecken|first2=Gabi|publisher=|others=|year=|isbn=9781782550358|location=Aachen, Germany|pages=119|oclc=903189054|quote=The principle is that the gates must always be pointing in the opposite direction to the climbing route}} 7. ^{{Citation|last=Michaël Andries|first=|title=Why both snappers should point to the same side, away from climbing direction.|date=2013-07-11|url=https://www.youtube.com/watch?v=e7DLIJTkRdI|work=YouTube|volume=|pages=|access-date=2018-08-14}} External links
1 : Climbing equipment |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。