Head gate element comprising a solid control bar provided with a notch for locking the movable bar

A head gate element comprising:

• a substantially flat frame;
• a substantially rectilinear movable bar mounted so as to pivot on a shaft fixed to said frame and substantially perpendicular to the plane, so that the movable bar can be situated in two extreme inclined positions, namely an open position and a release position, as well as in an intermediate closed position in which the movable bar is substantially vertical;
• fixed rigidly to one end of the movable bar, a locking fork joint formed by two plates, receiving a transverse slide able to move in translation in the direction of the movable bar;
• a control bar able to move in rotation about its longitudinal axis in order to control the possibilities of the movable bar in said three positions, said control bar being fixed in translation to the top part of the frame and extending between the two plates of the locking fork joint;
• the control bar comprising locking means including a transverse notch arranged so that the slide can fit therein when the movable bar and the control bar are in the closed position, characterized in that the control bar is solid;
• further characterised in that the control bar comprises a metallic core and a plastic covering.

A head gate element comprising:

• a substantially flat frame;
• a substantially rectilinear movable bar mounted so as to pivot on a shaft fixed to said frame and substantially perpendicular to the plane, so that the movable bar can be situated in two extreme inclined positions, namely an open position and a release position, as well as in an intermediate closed position in which the movable bar is substantially vertical;
• fixed rigidly to one end of the movable bar, a locking fork joint formed by two plates, receiving a transverse slide able to move in translation in the direction of the movable bar;
• a control bar able to move in rotation about its longitudinal axis in order to control the possibilities of the movable bar in said three positions, said control bar being fixed in translation to the top part of the frame and extending between the two plates of the locking fork joint;
• the control bar comprising locking means including a transverse notch arranged so that the slide can fit therein when the movable bar and the control bar are in the closed position, characterized in that the control bar is solid;
• further characterised in that the slide comprises a metallic core and a polymer envelope.

A head gate element comprising:

• a substantially flat frame;
• a substantially rectilinear movable bar mounted so as to pivot on a shaft fixed to said frame and substantially perpendicular to the plane, so that the movable bar can be situated in two extreme inclined positions, namely an open position and a release position, as well as in an intermediate closed position in which the movable bar is substantially vertical;
• fixed rigidly to one end of the movable bar, a locking fork joint formed by two plates, receiving a transverse slide able to move in translation in the direction of the movable bar;
• a control bar able to move in rotation about its longitudinal axis in order to control the possibilities of the movable bar in said three positions, said control bar being fixed in translation to the top part of the frame and extending between the two plates of the locking fork joint;
• the control bar comprising locking means including a transverse notch arranged so that the slide can fit therein when the movable bar and the control bar are in the closed position, characterized in that the control bar is solid;
• further characterised in that the slide is guided in translation by guidance means situated on the internal face of each of the plates.

A head gate element comprising:

• a substantially flat frame;
• a substantially rectilinear movable bar mounted so as to pivot on a shaft fixed to said frame and substantially perpendicular to the plane, so that the movable bar can be situated in two extreme inclined positions, namely an open position and a release position, as well as in an intermediate closed position in which the movable bar is substantially vertical;
• fixed rigidly to one end of the movable bar, a locking fork joint formed by two plates, receiving a transverse slide able to move in translation in the direction of the movable bar;
• a control bar able to move in rotation about its longitudinal axis in order to control the possibilities of the movable bar in said three positions, said control bar being fixed in translation to the top part of the frame and extending between the two plates of the locking fork joint;
• the control bar comprising locking means including a transverse notch arranged so that the slide can fit therein when the movable bar and the control bar are in the closed position, characterized in that the control bar is solid;
• further characterised in that it also comprises a safety locking device for the closed position of the movable bar, said device consisting of a removable pin connecting, when it is in place, the locking fork joint and the frame.

A head gate element comprising:

• a substantially flat frame;
• a substantially rectilinear movable bar mounted so as to pivot on a shaft fixed to said frame and substantially perpendicular to the plane, so that the movable bar can be situated in two extreme inclined positions, namely an open position and a release position, as well as in an intermediate closed position in which the movable bar is substantially vertical;
• fixed rigidly to one end of the movable bar, a locking fork joint formed by two plates, receiving a transverse slide able to move in translation in the direction of the movable bar;
• a control bar able to move in rotation about its longitudinal axis in order to control the possibilities of the movable bar in said three positions, said control bar being fixed in translation to the top part of the frame and extending between the two plates of the locking fork joint;
• the control bar comprising locking means including a transverse notch arranged so that the slide can fit therein when the movable bar and the control bar are in the closed position, characterized in that the control bar is solid;
• further characterised in that the movable bar also comprises, towards its external part opposite to the locking fork joint, means forming a counterweight able to automatically return the movable bar into its open position when it is not being acted on.

A head gate element comprising:

• a substantially flat frame;
• a substantially rectilinear movable bar mounted so as to pivot on a shaft fixed to said frame and substantially perpendicular to the plane, so that the movable bar can be situated in two extreme inclined positions, namely an open position and a release position, as well as in an intermediate closed position in which the movable bar is substantially vertical;
• fixed rigidly to one end of the movable bar, a locking fork joint formed by two plates, receiving a transverse slide able to move in translation in the direction of the movable bar;
• a control bar able to move in rotation about its longitudinal axis in order to control the possibilities of the movable bar in said three positions, said control bar being fixed in translation to the top part of the frame and extending between the two plates of the locking fork joint;
• the control bar comprising locking means including a transverse notch arranged so that the slide can fit therein when the movable bar and the control bar are in the closed position, characterized in that the control bar is solid;
• further characterised in that the movable bar also comprises, close to the locking fork joint, means of blocking the passage between the top part of the movable bar and the frame.