Nikkei edges down in volatile trade; automakers weigh
* Rising U.S. futures supports mood - analysts
* Takata tumbles after air bag linked to fatal crash in Malaysia
* Shimamura soars on strong quarterly profit
By Ayai Tomisawa
TOKYO, June 28 (Reuters) - Japanese stocks weakened in volatile trade on Tuesday morning, with automakers leading the declines on growing worries about the global economic fallout from Britain's vote to leave the European Union.
The Nikkei opened lower and dropped more than 2 percent at one point, but it also flirted with positive territory briefly. At 0213 GMT, the Nikkei was down 0.3 percent to 15,261.82.
Analysts said a pause in sterling's fall offered some respite.
"Short-covering in the currency market and U.S. futures market is limiting selling," said Yutaka Miura, senior technical analyst at Mizuho Securities. "But overall sentiment remains fragile."
The pound rose 0.4 percent to $1.3288 after falling as far as $1.3122 overnight, a low not seen since 1985. Continuación...