自行車车铃是由约翰·理查德·德迪科阿特发明的，[5]自行车车铃的专利早在1877年就出现了[6]。
Welcome back, bicycle bell. BBC News. 29 April 2004 [2011-07-03]. （原始内容存档于2023-07-30）. If you get a brand new bicycle from 1 May, make sure its got a brand new bell. Bells on new bikes were compulsory until 1983, but from this weekend they will once again be mandatory.
Bicycling in New Jersey Regulations. State of New Jersey Department of Transportation. November 8, 2010 [2011-07-03]. （原始内容存档于2023-07-30）. 39:4-11 Audible Signal. A bicycle must be equipped with a bell or other audible device that can be heard at least 100 feet away, but not a siren or whistle.
Ontario's Guide to Safe Cycling. Ontario Ministry of Transportation. June 20, 2010 [2011-07-03]. （原始内容存档于2011-07-06）. HTA 75 (5) - Bell: a bike must have a bell or horn in good working order. Set fine: $85.00
Cycling Fact Sheet No. 46: Ring your bell to make others aware (PDF). Government of Western Australia Department of Transportation. [2011-07-03]. （原始内容 (PDF)存档于2011-04-08）. Pedestrians have right-of-way on the State’s shared path system and the onus is on cyclists to provide a clear warning of their presence, particularly when approaching another path user from behind. For that reason, a person riding a bicycle in WA must have a bell or similar warning device that is in good working order.
The Federal Reporter (PDF) 73. West Publishing Co. 1896: 470 [2013-04-21]. （原始内容 (PDF)存档于May 13, 2010）. The Rockwell patent, No. 471,982, for a bicycle bell, consisting of a combination of a base plate, with a revoluble striker bar, spring-actuated in one direction, a lever operatively connected therewith, and adapted to rotate the striker bar in opposition to the force of the spring, and a gong, held invalid because of anticipation by the English patent, No. 2,425, of June 22, 1877, to Alfred Bennett, for improvements in call bells, door bells, etc. 64 Fed. 859. reversed.
See also US 471982,E.D. Rockwell,「Bell」,发表于March 29, 1892
