Talk:Yumi
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Old Info
A collection of information that can be added to the article. Everything here needs a lot of work, so I will leave the actual incorporation to others.
Bow lengths:
Height of Archer | Arrow Length | Suggested Bow Length |
< 150 cm | < 85 cm | Sansun-tsumari (212 cm) |
150 - 165 cm | 85 - 90 cm | Namisun (221 cm) |
165 - 180 cm | 90 - 100 cm | Nisun-nobi (227 cm) |
180 - 195 cm | 100 - 105 cm | Yonsun-nobi (233 cm) |
195-205 cm | 105 - 110 cm | Rokusun-nobi (239 cm) |
> 205 cm | > 110 cm | Hassun-nobi (245 cm) |
Three types of yumi in common usage: bamboo (take-yumi), lacquered bamboo (urushi, shigeto), and synthetic (from fiberglass or carbon).
- as far as I know there are no all carbon bows. This means that carbon is used to strengthen either a bamboo or a fiberglass bow Simohell 22:30, 10 May 2007 (UTC)
Urushi-yumi are generally only used for ceremonial purposes. Shigeto-yumi (which are urushi-yumi wound with strips of wood) are only used by the highest level of archers (headmasters of the large schools).
Yumi come in different pull-strengths. Beginners usually start with 10-12 kg yumi. Women generally use 16-18 kg yumi; men generally use 18-20 kg. Anything above 20 kg is considered rather strong; anything below 16 kg, weak. Take-yumi lose some pull-strength over time.
- the usual weight of the bow can be slightly different for different schools (ryu) Simohell 22:30, 10 May 2007 (UTC)
Yumi history:
Time Period | Type of Bow | Bow Formation |
Prehistoric | Maruki | Single piece of wood |
c.800-900 AD | Fusetake | Wood with bamboo front |
c.1100 AD | Sanmaeuchi | Wood with bamboo front and back |
c.1300-1400 | Shihodake | Wood surrounded with bamboo |
c.1550 | Sanbonhigo | Three-piece bamboo laminate core, wooden sides, bamboo front and back |
c.1600 | Yohonhigo | Four-piece bamboo laminate core, wooden sides, bamboo front and back |
c.1650-Modern times | Gohonhigo | Five-piece bamboo (or bamboo and wood) laminate core, wooden sides, bamboo front and back |
There are many, many parts to the bow (indeed every joint in the bamboo has its own name)--shall I (or someone else) construct an image that lists these parts?
Common superstition: A yumi should never be placed against a tree lest its (the yumi's) energy be drained.
Touching another's yumi without permission has been covered, but a small clarification: when you do have permission, you should still never touch the grip of the bow.
As for carrying the bow upright, there are plenty of times when holding it horizontal is okay. When strung, for example, it can be carried long distances by letting the string rest between your fingers and thumb, balancing the yumi on the horizontal plane.
- In normal shooting form (taihai) the bow is carried with the tip tilted downwards while walking... not to leave the bow standing upside down appears to be important for bamboo to maintain its shape. Also it appers to a symbol of respect. Simohell 22:30, 10 May 2007 (UTC)
...where are your sources for all this information? --J.B. 14:10, September 8, 2005 (UTC)
- The tabulated data comes from "Kyudo" by Onuma Hideharu, and Dan and Jackie DeProspero. The rest is personal experience from being a student of Mr. DeProspero.
Shape
The asymmetry was supposedly present in the Japanese longbow before the horse was ridden in japan. I have no sources to cite except Feliks Hoff "Kyudo -the way of the bow" (chapter 3), reports on the web and my kyudo-instructor's word. (The horse was presumably used for riding from about 6th century, whereas the earliest known depiction of a Japanese asymmetrical yumi is on a bronze plate from the 3rd century...) This information needs to be confirmed before inclusion in the main article, but if correct punctures a hole in the theory that the shape is due to horseback riding. 84.48.188.2 (talk) 11:44, 29 February 2008 (UTC)
Picture
Why is the bow upside down in the pic.? It is never placed to rest on the upper tip, only the lower, and I find it weird that it should hang that way... Can anyone confirm that it is correct? —Preceding unsigned comment added by 80.202.141.26 (talk) 22:50, 25 August 2008 (UTC)
- Ironic isn't it?Wolfmankurd (talk) 22:10, 24 October 2009 (UTC)
would like some information to be added as to its use in warfare, its approximate range etc.
Language
Some of the language in the article demonstrates poor English, including this example from the 'Shape' section - "It makes bowyer easy to grip yumi after shoot a arrow.". I appreciate that English is not the first langauge for many people, Japanese included, but that is no excuse for language this poor in an English-language Wiki. Noble Korhedron 02:47, 8 March 2011 (UTC) — Preceding unsigned comment added by Noble Korhedron (talk • contribs)
- Have a shot at changing the wording yourself, thats what editing is all about.Samuraiantiqueworld (talk) 03:18, 8 March 2011 (UTC)
More data
Can some body provide information about the penetration, the kind of arrows used and so? Thanks a lot.
Dead Link Pruning
- The Korekawa bow at Nara National Museum is a dead link as of 22NOV2011. I've pasted it here in case it comes back later, and for reference. — Preceding unsigned comment added by 24.56.24.58 (talk) 09:49, 22 November 2011 (UTC)
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