Apparatus for mounting plate on plate cylinder

An apparatus for mounting a plate on a plate cylinder of a printing press, the plate having a leading-side end portion, reference notches and a trailing-side end portion, the plate cylinder comprising a plate fixing means having a leading-side plate fixing means, said leading-side end portions having reference notches, said leading-side plate fixing means including reference pins for corresponding engagement of the reference notches of the leading-side end portion of the plate, the apparatus comprising:

• a support member coupled to the printing press;
• a safety cover supported from the support member to suspend the safety cover from the support member for vertical opening and closing of the safety cover;
• and
• a plate holding member mounted on the safety cover, the plate holding member having means for urging the trailing-side end portion of the plate downward when the leading-side end portion of the plate is inserted into the leading-side plate fixing means, the plate being biased so as to urge the reference notches of the leading-side end portion of the plate against the reference pins of the leading-side plate fixing means during opening of the leading-side plate fixing means, the plate holding member further comprising a downwardly open depression for inserting the trailing-side end portion of the plate therein, the downwardly open depression having an upper surface lower than the trailing-side end portion of the plate when the safety cover is in an open state and the leading-side end portion of the plate is inserted into the leading-side plate fixing means.

An apparatus for mounting a plate on a plate cylinder of a printing press, the plate having a leading-side end portion, reference notches and a trailing-side end portion, the plate cylinder comprising a plate fixing means having a leading-side plate fixing means, said leading-side end portions having reference notches, said leading-side plate fixing means including reference pins for corresponding engagement of the reference notches of the leading-side end portion of the plate, the apparatus comprising:

• a support member coupled to the printing press;
• a safety cover supported from the support member to suspend the safety cover from the support member for vertical opening and closing of the safety cover;
• a plate holding member mounted on the safety cover, the plate holding member having means for urging the trailing-side end portion of the plate downward when the leading-side end portion of the plate is inserted into the leading-side plate fixing means, the plate being biased so as to urge the reference notches of the leading-side end portion of the plate against the reference pins of the leading-side plate fixing means during opening of the leading-side plate fixing means;
• and
• a vertically arcuated plate guide positioned below the plate holding member and extending from the safety cover so as to be spaced apart therefrom, the plate guide bending the plate to urge the plate downward when the trailing-side end portion is held by said plate holding member and the leading-side end portion of the plate is inserted into the leading-side plate fixing means.

An apparatus for mounting a plate on a plate cylinder of a printing press, the plate cylinder having a plate fixing means, the plate having a leading-side end portion and a trailing-side end portion, the apparatus comprising:

• a support member coupled to the printing press;
• a safety cover supported from the support member to suspend the safety cover from the support member for vertical opening and closing of the safety cover;
• and
• a plate holding member mounted on the safety cover for urging the trailing-side end portion of the plate downward when the plate is inserted into the plate fixing means of the plate cylinder, the plate holding member having a downwardly open depression for inserting the trailing-side end portion of the plate therein, the downwardly open depression having an upper surface lower than the trailing-side end portion of the plate when the safety cover is in an open state and the leading-side end portion of the plate is inserted into the leading-side plate fixing means.

An apparatus for mounting a plate on a plate cylinder of a printing press, the plate cylinder having a plate fixing means, the plate having a leading-side end portion and a trailing-side end portion, the apparatus comprising:

• a support member coupled to the printing press;
• a safety cover supported from the support member to suspend the safety cover from the support member for vertical opening and closing of the safety cover;
• a plate holding member mounted on the safety cover for urging the trailing-side end portion of the plate downward when the plate is inserted into the plate fixing means of the plate cylinder;
• and
• a vertically arcuated plate guide positioned below the plate holding member and extending from the safety cover so as to be spaced apart therefrom, the plate guide bending the plate having the trailing-side end portion held by the plate holding member during mounting of the plate on the plate cylinder, so that the leading-side end portion applies a force to the plate fixing means of the plate cylinder into which the plate is inserted.