fifth wheelとは 意味・読み方・使い方
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意味・対訳 (四輪の車で)予備車輪、(四輪馬車の)転向輪、無用の長物
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「fifth wheel」の部分一致の例文検索結果
該当件数 : 32件
That is like putting a fifth wheel on a coach.発音を聞く 例文帳に追加
それは蛇足だ. - 研究社 新和英中辞典
ELECTRONIC SYSTEM FOR MONITORING FIFTH WHEEL HITCH例文帳に追加
第5車輪ヒッチをモニターするための電子システム - 特許庁
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Wiktionary英語版での「fifth wheel」の意味 |
fifth wheel
語源
From the fact that since many vehicles such as carriages, coaches, wagons, prime movers, and trucks generally have four wheels on which they move, this component which resembles a wheel is the fifth.
- (anything superfluous または unnecessary): Sense 3 refers to the fact that a fifth wheel is not needed for a four-wheeled vehicle to operate.
発音
名詞
fifth wheel (複数形 fifth wheels) (chiefly US)
- (road transport) A type of trailer hitch, which consists of a horseshoe-shaped plate on a multidirectional pivot, with a locking pin to couple with the kingpin of a truck trailer.
- 1919 August, “Connecting the Trailer in Record Time”, in Waldemar Kaempffert, editor, The Popular Science Monthly, volume 95, number 2, New York, N.Y.: Modern Publishing Company, […], →OCLC, page 28, column 1:
- In most forms of semi-trailers a great deal of time is wasted in connecting the trailer to the tractor or pulling vehicle. Most of the connecting gears are some form of fifth wheel, consisting of two horizontal circular bands of iron, one fitting on top of the other, with grease between and with a bolt or king-pin dropped through holes in the hubs or center bosses of both parts of the fifth wheel.
- 1934 August 25, “M.D.T. [Merchants Despatch Transportation Company] Develops Trailer Tank for Milk Service”, in Samuel O. Dunn, editor, Railway Age, volume 97, number 8, Philadelphia, Pa.: Simmons-Boardman Publishing, →ISSN, →OCLC, page 235, column 2:
- The semi-trailers are equipped with hydraulic brakes which operate through the king pin of the fifth wheel. The booster-controlled fifth wheel gives full and complete cab control of all braking and coupling operations.
- 1994 January, “Atmospheric Hazards – Oxygen Deficient Air [FACE 92-17 Fracturing Tank, 2 Fatalities]”, in Worker Deaths in Confined Spaces: A Summary of NIOSH Surveillance and Investigative Findings (DHHS (NIOSH); no. 94-103), Cincinnati, Oh.: National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Public Health Service, U.S. Department of Health and Human Services, →OCLC, page 114:
- In full, fifth-wheel trailer: a large caravan or travel trailer that is connected to a pickup truck for towing by a hitch similar to the one described in sense 1 located in the center of the truck's bed.
- 1997, Kim Baker; Sunny Baker, “Towing, Tow Vehicles, and Towed Vehicles”, in The RVer’s Bible: Everything You Need to Know about Choosing, Using, and Enjoying Your RV (A Fireside Book), New York, N.Y.: Simon & Schuster, →ISBN, part II (The Mechanical Side of RVing), page 182:
- Fifth-wheel hitching is a simple affair compared to trailer coupling. Choose a quality hitch and don't overburden an inadequate pickup truck with a big fifth wheel and you're almost in business.
- (road transport, historical) A horizontal wheel or segment of a wheel above the front axle and beneath the body of a carriage, forming an extended support to prevent it from overturning.
- 1873 April 1, H. F. Porter, “The Relative Merits of Full and Half Fifth-wheels”, in The Hub, volume XV, number 1, New York, N.Y.: Hub Publishing, →OCLC, page 10, column 1:
- Full fifth-wheels have become quite frequent of late, and it may not be out of place to make a few remarks on their merits as compared with half fifth-wheels. With the exception of heavy coaches and rockaways, nearly all vehicles were until lately made with half fifth-wheels; but at present we find nearly all the different kinds of work, such as landaus, clarences, coaches, landaulets, T-carts, and coupés, made with full fifth-wheels.
- 1912 February 7, “How to Save the Most Money on a Spreader [advertisement]”, in The Breeder’s Gazette, volume LXI, number 6, Chicago, Ill.: Sanders Publishing Company, →OCLC, page 367, columns 2–3:
- The Great Western has a big 15-inch indestructible malleable fifth wheel that weighs 40 pounds. This is attached with malleable braces to two big, heavy, solid oak bolsters. It is arranged so that if one wheel drops into a hole or rut, there's no strain or binding on the frame. The Great Western malleable fifth wheel and heavy oak bolsters are set back two feet under the box so the load is evenly balanced on all four wheels.
- (idiomatic, informal) Anything superfluous or unnecessary.
- [1818 December, “A Grammar of the English Language, in a Series of Letters. […] By W[illia]m Cobbett. New York, 1818. 1 vol. 12mo. pp. 184. 75 cts. [book review]”, in Oliver Oldschool [pseudonym; John Elihu Hall], editor, The Port Folio, volume VI, number VI (4th series), Philadelphia, Pa.: Published by Harrison Hall, […]; London: John Souter, […], →OCLC, pages 464–465:
- A subjunctive mode should no more exist in the English grammar, than a fifth wheel be given to a wagon.]
- [1902 August 21, Henry James, chapter XVII, in The Wings of the Dove, volume II, New York, N.Y.: Charles Scribner’s Sons, →OCLC, book sixth, page 6:
- Compressed and concentrated, confined to a single sharp pang or two, but none the less in wait for him there on the Euston platform and lifting its head as that of a snake in the garden, was the disconcerting sense that "respect," in their game, seemed somehow—he scarce knew what to call it—a fifth wheel to the coach.]
- 1971, Charles C. Denova, “Establishing Training Activities”, in Establishing a Training Function: A Guide for Management, Englewood Cliffs, N.J.: Educational Technology Publications, →ISBN, page 17:
- The most common excuse is that they [line managers] do not have enough time to train every employee and perform their other supervisory duties. In an environment such as this, a new hire often feels like a fifth wheel and begins to develop frustration and fear.
Notes
- ^ From “Platform Spring Carriage”, in The Coach-makers’ Illustrated Hand-book, […], 2nd edition, Philadelphia, Pa.: I[saac] D[elaney] Ware, […], 1875, →OCLC, part II (Blacksmith Department), page 126.
Further reading
- caravan (towed trailer) on Wikipedia.
- fifth-wheel coupling on Wikipedia.
- fifth wheel (disambiguation) on Wikipedia.
- “ and n?tab=meaning_and_use#4435098 fifth-wheel, n.” under “fifth, adj. and n.”, in OED Online , Oxford, Oxfordshire: Oxford University Press, 1896.
- “fifth wheel, n.”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
「fifth wheel」の部分一致の例文検索結果
該当件数 : 32件
In this electronically controlled mechanical timepiece, the fifth wheel & pinion 11 is supported by a base plate 3 and the second wheel bridge 15.例文帳に追加
電子制御式機械時計では、五番車11を地板3と二番受15とで支持させた。 - 特許庁
FIFTH WHEEL COUPLING'S LOCKING STATE DISPLAY DEVICE AND SENSOR SETTING DEVICE例文帳に追加
フィフスホイールカップリングのロック状態を表示する装置及びセンサの設置装置 - 特許庁
LUBRICATION SYSTEM FOR FIFTH-WHEEL TRACTION COUPLING DEVICE OF SEMI-TRAILER TRACTION ENGINE例文帳に追加
セミトレーラけん引自動車の第5輪けん引連結器用の潤滑システム - 特許庁
The diameter from the center of rotation of the fourth wheel and pinion 8 to a part meshing with the fifth first intermediate wheel and pinion 9 is made larger.例文帳に追加
四番車8の回転中心から五番第1中間車9との噛合部分までの径寸法を大きくする。 - 特許庁
A radio controlled timepiece as an electronic timepiece includes the fifth wheel 271 and the third wheel 272 gearing with a rotor pinion 261A and is made to detect hand positions of hour and minute hands by using detection holes 271A, 272A, 273A, 222A, 275A provided to the second wheel 273, the fourth wheel 222 and a scoop wheel 275.例文帳に追加
電子時計である電波修正時計では、ロータかな261Aと噛合する五番車271および三番車272を含み、二番車273、四番車222、筒車275に設けられた検出孔271A,272A,273A,222A,275Aを用いて時分針の針位置検出を行うようにした。 - 特許庁
The axial center of the fifth wheel & pinion 11 is thereby overlapped with the sixth wheel & pinion 12 without interfering each other, and a diameter dimension of the sixth wheel & pinion 12 can be enlarged thereby.例文帳に追加
従って、五番車11の軸中心と六番車12とを互いに干渉することなくそれぞれ重ねることができ、六番車12の径寸法を大きくできる。 - 特許庁
Screw portions to be threaded to the screw rods 35, 37, 39, 40 are provided on first, second, fourth and fifth suction wheel units 45A, 45B, 45D, 45E.例文帳に追加
第1、第2、第4、第5の吸引車ユニット45A,45B,45D,45Eには、ねじ棒35,37,39,40に螺合するねじ部が設けられている。 - 特許庁
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