Rapidly-opened spanner

Rapidly-opened spanner

  • CN 102,615,613 A
  • Filed: 04/01/2012
  • Published: 08/01/2012
  • Est. Priority Date: 04/01/2012
  • Status: Active Application
First Claim
Patent Images

1. the fast opening spanner that can tighten or unclamp hex nut rapidly, continuously;

  • This spanner is made up of Wrench head (1) and handle body (2);

    It is characterized in that the interior the right and left of Wrench head (1) opening (3) is curved working face (4 and

         5), with two side planes of contact hex nut.Opening (3) bottom is one of the hex nut both sides under spill cambered surface (6) that the angle contacted, and is goed deep into the degree of depth by opening (3) when blocking with the restriction hex nut.Opening (3) arc working face (4 and

         5) epimere is outer inclined-plane (7 and

         8), has strengthened opening (3) inlet thus, is easy to this spanner and snaps in fast.Opening (3) arc working face (4 and

         5) hypomere expands outwardly and is inclined-plane (9 and



    Constitute a sky between curved working face (4 and

         5), inclined-plane (9 and

         10) and the spill cambered surface (6) and revolve surplus position (11), after opening (3) blocks hex nut, when not twisting the hex nut rotation, can do 15 or 18 degree swings;

    So far, opening (3) forms the middle arcuation protuberance of two side direction U shape opening (12).

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