Sheet insertion and removing device

Claim 2

In a sheet insertion and removing device for use in microfilm readers or the like apparatus which comprises a sheet carrier including means for positioning a sheet supplied thereon in a required position and means for holding said sheet on said carrier for retrieval of data stored on said sheet, an improvement thereof for automatic insertion and removing of the sheet into or from said carrier comprises feeding means for sheet feeding, a guide member forming a passage for said sheet, a carrier member provided thereon with sheet positioning means and sheet holding means and adapted to reciprocate relative to said guide member, an upper surface of said carrier member being adapted to be level with that of said guide member, first switch means provided in said passage on said guide means and actuated by insertion of said sheet into said passage for causing said feeding means to feed said sheet onto said carrier member, second switch means for driving said carrier member forward away from a starting position to a predetermined position which second switch means is disposed on said carrier member and actuated when said sheet has been positioned on said carrier member, said carrier member being adapted to stop at said predetermined position during retrieval of said data stored on said sheet and to subsequently return back to said starting position, third switch means disposed between said carrier member and said guide member so as to be actuated when said carrier member has returned to said starting position for causing said feeding means to discharge said sheet back onto said guide member.

Claim 3

A sheet insertion and removing device as claimed in claim 1, wherein said third switch means is further adapted to be actuated for stopping action of said feeding means when said carrier member moved from said starting position.

Claim 4

A sheet insertion and removing device as claimed in claim 1, wherein said feeding means comprises a pair of rotatable feeding rollers driven by a motor which are in parallel and in contact with each other for simultaneous rotation and disposed in a direction parallel to a corresponding front edge of said guide member.

Claim 5

A sheet insertion and removing device as claimed in claim 1, wherein said carrier member further comprises a base block fixedly mounted on a movable carrier plate said base block being disposed level with a surface of said guide member.

Claim 6

A sheet insertion and removing device as claimed in claim 4, wherein said carrier member includes a press board pivotally connected to said base block for covering a support board provided on said carrier member, said press board being provided thereon with a pin member disposed in a direction parallel to the surface of said press board and adapted to engage with a curved end portion of a lever member fixed to a housing of a apparatus when said carrier member has reached the position adjacent to said guide member so that said press board is turned upward about said piVotal connection, and to disengage from said curved end portion of said lever member when said carrier member has reached said predetermined position away from said guide member so that press board is turned downward about said pivotal connection to cover said support board.

Claim 7

A sheet insertion and removing device as claimed in claim 1, wherein said first switch means comprises a microswitch disposed in said passage on said guide member.

Claim 8

In a sheet insertion and removing device for use in microfilm readers or the like apparatus which comprises a sheet carrier including means for positioning a sheet supplied thereon in a required position and means for holding said sheet on said carrier for retrieval of data stored on said sheet, an improvement thereof for automatic insertion and removing of the sheet into or from said carrier comprises a carrier member which has a sheet positioning means and sheet holding means thereon and which is provided with feeding means mounted on an edge of said carrier member adjacent to a guide member which forms a passage for said sheet, said carrier member being adapted to reciprocate relative to said guide member with an upper surface of said carrier member being level with that of said guide member and with one edge of said sheet being held by said feeding means during reciprocation of said carrier member, first switch means provided in said passage on said guide means and actuated by insertion of said sheet into said passage for causing said feeding means to feed said sheet onto said carrier member, second switch means for driving said carrier member forward away from a starting position thereof adjacent to said guide member to a predetermined position and also for stopping action of said feeding means, which second switch means is disposed on said carrier member and actuated when said sheet has been position on said carrier member, said carrier member being adapted to stop at said predetermined position during retrieval of said data stored on said sheet and to subsequently return back to said starting position, third switch means disposed between said carrier member and said guide member so as to be actuated when said carrier member has returned to said starting position for causing said feeding means to discharge said sheet back onto said guide member.

Claim 9

In a sheet insertion and removing device for use in microfilm readers or the like apparatus which comprises a sheet carrier including means for positioning a sheet supplied thereon in a required position and means for holding said sheet on said carrier for retrieval of data stored on said sheet, an improvement thereof for automatic insertion and removing of the sheet into or from said carrier comprises a carrier member which has a sheet positioning means and sheet holding means thereon and which is provided with feeding means mounted on an edge of said carrier member adjacent to a guide member which forms a passage for said sheet, said carrier member being adapted to reciprocate relative to said guide member with an upper surface of said carrier member being level with that of said guide member and with one edge of said sheet being held by said feeding means during reciprocation of said carrier member, first switch means provided in said passage on said guide means and actuated by insertion of said sheet into said passage for causing said feeding means to feed said sheet onto said carrier member, second switch means for driving said carrier member forward away from a starting position thereof adjacent to said guide member to a predetermined position and also for stopping action of said feeding means, which second switch means is disposed on said carrier member and actuated when said sheet has been position on said carrier member, said carrier member being adapted to stop at said predetermined position during retrieval of said data stored on said sheet and to subsequently return back to said starting position, third switch means disposed between said carrier member and said guide member so as to be actuated when said carrier member has returned to said starting position for causing said feeding means to discharge said sheet back onto said guide member.

Claim 10

A sheet insertion and removing device as claimed in claim 7, wherein said feeding means comprises a pair of rotatable feeding rollers driven by a motor which are in parallel and in contact with each other for simultaneous rotation and disposed in a direction parallel to a corresponding front edge of said guide member.

Claim 11

A sheet insertion and removing device disengage claimed in claim 7, wherein said carrier member further comprises a base block fixedly mounted on a movable carrier plate, said base block being disposed level with a surface of said guide member.

Claim 12

A sheet insertion and removing device as claimed in claim 7, wherein said carrier member includes a press board pivotally connected to said support board for covering a support board provided on said carrier member, said press board being provided thereon with a pin member disposed in a direction parallel to the surface of said press board and adapted to engage with a curved end portion of a lever member fixed to a housing of an apparatus when said carrier member has reached the position adjacent to said guide member so that said press board is turned upward about said pivotal connection, and to disengage from said curved end portion of said lever member when said carrier member has reached said predetermined position away from said guide member so that said press board is turned downward about said pivotal connection to cover said support board.

Claim 13

A sheet insertion and removing device as claimed in claim 7, wherein said first switch means comprises a microswitch disposed in said passage on said guide member.