Ads
related to: 4 link frame brackets
Search results
Results From The WOW.Com Content Network
Planar quadrilateral linkage, RRRR or 4R linkages have four rotating joints. One link of the chain is usually fixed, and is called the ground link, fixed link, or the frame. The two links connected to the frame are called the grounded links and are generally the input and output links of the system, sometimes called the input link and output link.
Frame: the mechanical core of a bicycle, the frame provides points of attachment for the various components that make up the machine. The term is variously construed, and can refer to the base section, always including the bottom bracket, or to base frame, fork, and suspension components such as a shock absorber
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The DW-link is a subset of the common four-bar system used widely in bicycle suspension. The four-bar system has been used on mountain bikes since the early days of suspension. Similar suspension systems to the DW-link have been used by Schwinn, Fisher and Karpiel. Currently a similar system is used by Giant and named "Maestro".
Robinson's system called for standard 2×4 lumber, nailed together to form a sturdy, light skeleton. Builders were reluctant to adopt the new technology; however, by the 1880s, some form of 2×4 framing was standard. [25] Alternatively, a precursor to the balloon frame may have been used by the French in Missouri as much as 31 years earlier. [17]
Historically, though, there is a subtle difference between the two terms. If the longitudinal members in a fuselage are few in number (usually 4 to 8) and run all along the fuselage length, then they are called "longerons". The longeron system also requires that the fuselage frames be closely spaced (about every 4 to 6 in or 10 to 15 cm).