Sunday, September 16, 2007

Fixing rear light 固定尾燈


It took me some time to determine where in this bicycle to install this rear light.

This rear light has been designed to fix in the rear end of a cargo rack. But this bicycle doesn't have a rack.

I thought of fixing it in the seat post clamp, but the seat post tube is so short that its light will be blocked by the rear wheel.

If I clamp it in the seat post, the adjustment of the seat height will be constrained. So this is not an option too.

Finally, I decided to fix it just beneath the saddle, and use its fixing bolt. But this poses a danger, because if the bolt is not fastened tightly enough, the saddle may get loose, and cause an accident.

I cut two short pieces of stainless steel strips from a recycled toilet water tank push lever. After drilling holes and bending, I screwed them with the rear light body, then attached to the saddle bolt, and fastened the bolt very tightly.

The result is totally perfect!

決定把尾燈裝在這部腳踏車的什麼地方,花了我不少時間.

這個尾燈的原本設計是要裝在貨架尾端的,可是這部腳踏車沒有貨架.

想把它裝在座桿固定夾,但它的座管太短,後輪會把光線擋住.

如果把它夾在座桿上,又會影響座墊的高度調整,所以也不是理想的選擇.

最後決定把它固定在坐墊下,並利用它的固定螺栓.這有一個危險,就是如果螺栓鎖得不夠緊,坐墊可能鬆脫造成意外.

我從回收的馬桶水箱按水拉桿切出二小段不鏽鋼片,鑽孔、彎曲後,用螺絲把它們和尾燈本體固定在一起,然後穿在座墊固定螺栓上,用力鎖緊.

結果非常完美!

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