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AssigneeCeska Zbrojovka A.S.
InventorsMartin Chaloupka, Ales Kostka
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An assembly of a barrel (2), a container/frame (4) and a breech block (1) for self-loading pistols with the breech block mechanism locked by barrel drop. The barrel (2) and the breech block (1) being movably accommodated in the container/frame (4). The A1 barrel (2) has a front part (205) and a rear part (206). A control block (201) of the barrel is arranged under the rear part (206) and a hook (401) is arranged in the region of the control block (201) of the barrel on the container/frame (4). The control block (201) of the barrel is constituted by a recess that comprises a front inclined control surface (202) that passes into a locking brace (203) and at a distance, at least around a part of the locking brace (203), at least one bearing surface (204) is arranged to stop the movement of the barrel (2). The hook (401) comprises a blade (402) for cooperation with the control surface (202) of the control block (201) of the barrel. The blade (402) has an adjacent shapes surface (403) for cooperation with the locking brace (203) of the control block (201) of the barrel. Around at least a part of the shaped surface (403), at least one stop surface (404) is arranged to absorb the impact of the barrel (2). The stop surface (404) is oriented with respect to the shaped surface (403) in such a way that in the fully unlocked state of the barrel (2), the stop surface (404) of the hook (401) bears on the bearing surface (204) of the control block (201) of the barrel while between the control surface (202) and locking brace (203) of the control block (201) of the barrel at one side and the front face of the blade (402) and the shaped surface (403) of the hook (401) at the other side, there is a play.
An assembly of a barrel, a container/frame and a breech block for self-loading pistols with the breech block mechanism locked by barrel drop, the barrel and the breech block being movably accommodated in the container/frame wherein the barrel has a front part and a rear part, and a control block of the barrel is arranged under the rear part and a hook is arranged in the region of the control block of the barrel on the container/frame wherein the control block of the barrel is constituted by a recess that comprises a front inclined control surface that passes into a locking brace and at a distance, at least around a part of the locking brace at least one bearing surface is arranged to stop the movement of the barrel, wherein the hook comprises a blade for cooperation with the control surface of the control block of the barrel and the blade has an adjacent shapes surface for cooperation with the locking brace of the control block of the barrel, wherein around at least a part of the shaped surface at least one stop surface is arranged to absorb the impact of the barrel wherein the stop surface is oriented with respect to the shaped surface in such a way that in the fully unlocked state of the barrel, the stop surface of the hook bears on the bearing surface of the control block of the barrel while between the control surface and locking brace of the control block of the barrel at one side and the front face of the blade and the shaped surface of the hook at the other side, there is a play.
Dependencies are inferred from the claim text.