Patent ID: 6540543
Filing Date: 2003-04-01
Classification: H01R,H02G

Abstract:
An electrical connection box capable of being sealed through the use of an elongated watertight packing of a predefined thickness, the electrical connection box comprising:(a) a casing having a casing sidewall of a predetermined thickness with the sidewall terminating in an end edge; (b) a cover including a cover sidewall for placing on the casing, the cover having a recess about the periphery of the casing, the recess having a width corresponding to the thickness of the end edge of the casing side wall, the casing and cover normally being engaged and locked with each other so that the end edge of the sidewall fits into the recess of the casing; (c) a female locking element formed on the casing sidewall, the female locking element including a bottom wall with a base end secured to the casing side wall and a flexible part secured to the bottom wall, the flexible part terminating in a locking pawl; (d) a male locking element formed on the cover sidewall, the male locking element having (i) a flexible part to be engaged with the female locking element, (ii) a joint portion connecting the flexible part to the cover side wall, (iii) first and second locking holes formed on the flexible part and spaced apart from each other by a spacing equal to the thickness of the packing; and (e) wherein, when the packing is not interposed between the recess portion of said cover and the end edge of the casing side wall, the end edge of the casing side wall is fitted into the recess portion of the cover and the first locking hole of the cover is engaged by the locking pawl of the casing a front end of the flexible part abutting against the bottom wall of the female locking member, and when the packing is interposed between the recess portion of the cover and the end edge of the casing side wall, the second locking hole of the cover is engaged by the locking pawl of the casing and the front end of the flexible part being spaced from the bottom wall.