出典:Wiktionary
出典:『Wiktionary』 (2026/05/15 22:47 UTC 版)
From Old French rivet (13th century), from the verb Old French river (“to fetter [a person]”) (12th century), from Old French rive (“rim, edge”) (ca. 1100), which is ultimately from Latin ripa (“riverbank”). Compare river, rival, riparian.
The sense "kind of footman's armour" is apparently a back-formation from almain rivet, which is apparently derived from the English noun; see that entry for more.
rivet (third-person singular simple present rivets, present participle riveting or (especially UK) rivetting, simple past and past participle riveted or (especially UK) rivetted)
Solid rivets are traditionally installed by two people: a bucker (or holder-up) who bucks the rivets, typically holding a heavy bucking bar against the bucktail of a rivet which has been heated if necessary till it is soft, while the riveter (or gunner or, before mechanisation, basher) uses a rivet gun (an adjustable pneumatic hammer) fitted with a rivet set, against the factory head to provide impulses which upset the bucktail into a field head. If iron or steel rivets are used, two extra people are required, the heater or cook at a nearby brazier, who heats the rivets until they are soft, and with tongs, throws them to the catcher, who catches them in a small bucket and, with tongs, places them in the hole. As the rivet cools, it contracts and grips the plates more tightly. The number of people required, all requiring considerable training to achieve safety, means however that steel rivets are now rarely used. Alternatively, where both ends of a rivet are near an opening, the arm of a hydraulic press can be passed through and used to compress the rivet to form the field head. Blind rivets can be fitted without access to the bucktail side, using a different type of rivet gun which pulls out a frangible mandrel, but they are much less strong than equal sizes of solid rivet. There are other less common types of rivet, see
rivet on Wikipedia.Wikipedia
出典:Wikipedia
出典:『Wikipedia』 (2011/06/26 10:19 UTC 版)
A rivet is a permanent mechanical fastener. Before being installed a rivet consists of a smooth cylindrical shaft with a head on one end. The end opposite the head is called the buck-tail. On installation the rivet is placed in a punched or pre-drilled hole, and the tail is upset, or bucked (i.e. deformed), so that it expands to about 1.5 times the original shaft diameter, holding the rivet in place. To distinguish between the two ends of the rivet, the original head is called the factory head and the deformed end is called the shop head or buck-tail.
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