| 摘要 |
PCT No. PCT/FR93/01250 Sec. 371 Date Jul. 14, 1994 Sec. 102(e) Date Jul. 14, 1994 PCT Filed Dec. 15, 1993 PCT Pub. No. WO94/15027 PCT Pub. Date Jul. 7, 1994.A retractable boundary mark, particularly a road boundary mark, comprising a movable boundary mark body (5) which can move inside a corresponding housing or casing (4), whose upper side is open, from a working position wherein said body (5) fixedly extends above the level of the open end of the housing (4) to a resting position wherein said body (5) extends so that its top is approximately level with the housing (4) open end, characterized in that the body of said movable boundary mark (5) forms an integrated electric distribution point which is supplied by a source of electric power (20) so that at least one current consumer (21, 22) can work, said consumer being placed on the body of the movable boundary mark (5) or connected to the latter thanks to a cable (23). |
