Apparatus for lifting sheets from a stack
First Claim
1. An apparatus for lifting a sheet from a stack of sheets comprising:
- a suction head frame;
suction plate means for engaging the sheet;
lifting means connected to said suction plate means so as to move said suction plate means in a vertical direction, said lifting means for moving said suction plate means between a first sheet-engaging position and a second sheet-releasing position, said suction plate means pivotally connected to said lifting means so as to align parallel to a surface of the stack;
a setting member extending upwardly from said suction plate means to said suction head frame, said suction plate means pivotally connected to said setting member, said setting member linearly movable relative to said suction head frame; and
a ramp member connected to said frame and positioned along a length of said setting member, said ramp member in cooperative relationship with said setting member, said setting member for causing said suction plate means to be positioned in parallel relation to said ramp member when said suction plate means is in said first position, said ramp member being stationary during a movement of said suction plate means between said first and second positions, said suction plate means comprising;
a plate carrier;
a suction plate affixed to a surface of said plate carrier, said plate carrier pivotally connected to said setting member, said suction plate having a surface for engaging the sheet; and
a ball fitting attached to a surface of said plate carrier opposite said suction plate, said ball fitting being in a pivotal relationship with respect to said lifting means.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for lifting a sheet from a stack of sheets including a frame, a suction plate for engaging a sheet from the stack, a lifter connected to the suction plate so as to move the suction plate in a vertical direction, a setting member pivotally connected to the suction plate, and a ramp member connected to the frame and positioned along a length of the setting member. The lifter serves to move the suction plate between a first sheet-engaging position and a second sheet-releasing position. The suction plate is pivotally connected to the lifter so as to align parallel to the surface of a sheet. The setting member extends upwardly from the suction plate The ramp member is in cooperative relationship with the setting member. The setting member causes the ramp member to be positioned in parallel relationship to the suction plate when the suction plate is in the first position. The ramp member is stationary during a movement of the suction plate between the first and second positions. The suction plate includes a plate carrier and a setting member pivotally affixed to a surface of the plate carrier. The setting member extends through an opening in the ramp member. An abutment member is affixed to the setting member so as to be interactive with the ramp member.
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Citations
17 Claims
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1. An apparatus for lifting a sheet from a stack of sheets comprising:
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a suction head frame; suction plate means for engaging the sheet; lifting means connected to said suction plate means so as to move said suction plate means in a vertical direction, said lifting means for moving said suction plate means between a first sheet-engaging position and a second sheet-releasing position, said suction plate means pivotally connected to said lifting means so as to align parallel to a surface of the stack; a setting member extending upwardly from said suction plate means to said suction head frame, said suction plate means pivotally connected to said setting member, said setting member linearly movable relative to said suction head frame; and a ramp member connected to said frame and positioned along a length of said setting member, said ramp member in cooperative relationship with said setting member, said setting member for causing said suction plate means to be positioned in parallel relation to said ramp member when said suction plate means is in said first position, said ramp member being stationary during a movement of said suction plate means between said first and second positions, said suction plate means comprising; a plate carrier; a suction plate affixed to a surface of said plate carrier, said plate carrier pivotally connected to said setting member, said suction plate having a surface for engaging the sheet; and a ball fitting attached to a surface of said plate carrier opposite said suction plate, said ball fitting being in a pivotal relationship with respect to said lifting means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for lifting a sheet from a stack of sheets comprising:
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a suction head frame; suction plate means for engaging the sheet; lifting means connected to said suction plate means so as to move said suction plate means in a vertical direction, said lifting means for moving said suction plate means between a first sheet-engaging position and a second sheet-releasing position, said suction plate means pivotally connected to said lifting means so as to align parallel to a surface of the stack; a setting member extending upwardly from said suction plate means to said suction head frame, said suction plate means pivotally connected to said setting member, said setting member linearly movable relative to said suction head frame; and a ramp member connected to said frame and positioned along a length of said setting member, said ramp member in cooperative relationship with said setting member, said setting member for causing said suction plate means to be positioned in parallel relation to said ramp member when said suction plate means is in said first position, said ramp member being stationary during a movement of said suction plate means between said first and second positions, said setting member having an abutment member affixed thereto, said abutment member for abutting said ramp member when said suction plate means is in said first position, said ramp member articulated about a pin, said pin supported in a fixed position with respect to said frame, said ramp member having an opening extending therethrough, said setting member extending through said opening. - View Dependent Claims (12, 13, 14, 15)
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16. An apparatus for lifting a sheet from a stack of sheets comprising:
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a suction head frame; suction plate means for engaging the sheet; lifting means connected to said suction plate means so as to move said suction plate means in a vertical direction, said lifting means for moving said suction plate means between a first sheet-engaging position and a second sheet-releasing position, said suction plate means pivotally connected to said lifting means so as to align parallel to a surface of the stack; a setting member extending upwardly from said suction plate means to said suction head frame, said suction plate means pivotally connected to said setting member, said setting member linearly movable relative to said suction head frame; and a ramp member connected to said frame and positioned along a length of said setting member, said ramp member in cooperative relationship with said setting member, said setting member for causing said suction plate means to be positioned in parallel relation to said ramp member when said suction plate means is in said first position, said ramp member being stationary during a movement of said suction plate means between said first and second positions, said ramp member having a releasable locking mechanism affixed thereto, said locking mechanism for fixing said ramp member in a position. - View Dependent Claims (17)
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Specification