Patent ID: 7657978

Claim:
A safety buckle, comprising: an intermediate buckle member, said intermediate buckle member comprising a first receiving hole disposed at a first side thereof, a second receiving hole disposed at a second side thereof opposite to said first side, and at least one smoothly arched groove formed in each of said first receiving hole and said second receiving hole; a first connecting buckle member, said first connecting buckle member comprising a first plug insertable into said first receiving hole of said intermediate buckle member, the first plug of said first connecting buckle member having at least one raised portion for engaging the at least one smoothly arched groove in said first receiving hole to secure said first connecting buckle member to said intermediate buckle member after insertion of the first plug of said first connecting buckle member into said first receiving hole of said intermediate buckle member for allowing said first connecting buckle member to be biased relative to said intermediate buckle member along the at least one smoothly arched groove in said first receiving hole within a predetermined angle; and a second connecting buckle member, said second connecting buckle member comprising a second plug insertable into said second receiving hole of said intermediate buckle member, the second plug of said second connecting buckle member having at least one raised portion for engaging the at least one smoothly arched groove in said second receiving hole to secure said second connecting buckle member to said intermediate buckle member after insertion of the second plug of said second connecting buckle member into said second receiving hole of said intermediate buckle member for allowing said second connecting buckle member to be biased relative to said intermediate buckle member along the at least one smoothly arched groove in said second receiving hole within a predetermined angle.