Film transport device for a projector

Claim 2

A film transport device for a projector comprising: an original picture holding frame having two lined and toothed portions arranged in parallel relation with one another, and provided with a plurality of attached original picture frames arranged in two rows substantially in the same plane in parallel relation with said lined and toothed portions; a pedestal having a guide means for supporting said original picture holding frame for sliding movement in a direction along said rows; a projector main body having a projecting lens system, a driving motor, a clutch means and a driving member driven by said driving motor through said clutch means, and a guiding member for supporting said pedestal for displacement perpendicularly to said sliding direction; and engaging means on said driving member for engaging with one of said lined and toothed portions to transport one of said original picture frames in the same row to said projecting lens system successively, and for engaging with said pedestal when said engaging means is engaged with the last tooth of one of said lined and toothed portions for exchanging the engagement of said engaging means to the other one of said lined and toothed portions.

Claim 3

A film transport device for a projector comprising: an original picture holding frame having two lined and toothed portions arranged in parallel relation with one another, and provided with a plurality of attached original picture frames arranged in two rows substantially in the same plane in parallel relation with said lined and toothed portions; a pedestal having a guide means for supporting said original picture holding frame for sliding movement in a direction along said rows; a projector main body having a projecting lens system, a driving motor, a clutch means and a driving member driven by said driving motor through said clutch means, and a guiding member for supporting said pedestal for displacement perpendicularly to said sliding direction; and engaging means on said driving member for engaging with one of said lined and toothed portions to transport one of said original picture frames in the same row to said projecting lens system successively, and for engaging with said pedestal when said engaging means is engaged with the last tooth of one of said lined and toothed portions for exchanging the engagement of said engaging means to the other one of said lined and toothed portions.

Claim 4

A film transport device for a projector comprising: an original picture holding frame having two lined and toothed portions arranged in parallel relation with one another, and provided with a plurality of attached original picture frames arranged in two rows substantially in the same plane in parallel relation with said lined and toothed portions; a pedestal having a guide means for supporting said original picture holding frame for sliding movement in a direction along said rows; a projector main body having a projecting lens system, a driving motor, a clutch means and a driving member driven by said driving motor through said clutch means, and a guiding member for supporting said pedestal for displacement perpendicularly to said sliding direction; and engaging means on said driving member for engaging with one of said lined and toothed portions to transport one of said original picture frames in the same row to said projecting lens system successively, and for engaging with said pedestal when said engaging means is engaged with the last tooth of one of said lined and toothed portions for exchanging the engagement of said engaging means to the other one of said lined and toothed portions.

Claim 5

A film transport device for a projector as set forth in claim 1, where said original picture holding frame is provided in a regular position detachably and exchangeably with a film jacket which is provided with two film insertion openings for inserting respectively a film on which said original picture frames are arranged in a row, and two film pockets arranged in parallel relation with one another.

Claim 6

A film transport device for a projector as set forth in claim 1, wherein there is provided with a line change over indicating device comprising an opening/closing switch provided on said pedestal, a change over switch provided on said projector main body, and two indicator lamps arranged in parallel relation with one another connected to an electric power source and said opening/closing switch via said change over switch; said opening/closing being disposed for sliding on an edge piece of said original picture Holding frame, which is provided with a dent portion arranged in parallel relation with, said lined and toothed portions wherein, and said dent portion opens said opening/closing switch in the position where said original picture holding frame is equipped and exchanged for the projector, and said change over switch is changed over in accordance with the line change over displacement of said pedestal and said original picture holding frame to connect one of said two indicator lamps to said electric power source and said opening/closing switch, so as to indicate one of two rows of said toothed portions, with which said engaging means of said driving member engages.

Claim 7

A film transport device for a projector as set forth in claim 3, wherein said two indicator lamps are operative for indication of the original picture frame line by which the frame delivery is operated and indication of the delivery direction thereof.

Claim 8

A film transport device for a projector comprising: an original picture holding frame having two lined and toothed portions arranged in parallel relation with one another, and provided with a plurality of attached original picture frames arranged in two rows substantially in the same plane in parallel relation with said portions; a pedestal having a guide means for supporting said original picture holding frame for sliding movement in a direction along said rows; a projector main body including a guiding member for supporting said pedestal for displacement perpendicularly to said sliding direction; a gear mounted on a rotary shaft provided on said body; a restraining cam provided with dent portions at equal intervals on its circumference; a driving member having engaging means thereon, said driving member including a driven gear; a restraining lever mounted on said body and being provided with a restraining projection element, spring means urging said element into contact with said cam; an electromagnet device for turning said lever against said spring means; a clutch lever provided with an idle gear for following up after said lever has been turned by said electromagnet device; a driving gear interlocking with a prime mover; and a line change-over member; whereby the engagement of said restraining projection element and said dent portion is released by operation of said electromagnet, and at the same time, said idle gear connects said driving gear with said driven gear, and said driving member turns in one direction until said restraining projection element engages again with said dent portion, and in the meantime said engaging means engages with one of said toothed portions and delivers one of said original picture frames in a row corresponding to said one toothed portion, and after the final tooth of said one toothed portion in said row is delivered, the turning of said driving member operates said line change-over member to displace said one original picture holding frame and said pedestal relative to said body, and said engaging means engages with the other of said toothed portions to deliver it to the opposite direction one-by-one.

Claim 9

A film transport device for a projector comprising: an original picture holding frame having two lined and toothed portions arranged in parallel relation with one another, and provided with a plurality of attached original picture frames arranged in two rows substantially in the same plane in parallel relation with said portions; a pedestal having a guide means for supporting said original picture holding frame for sliding movement in a direction along said rows; a projector main body including a guiding member for supporting said pedestal for displacement perpendicularly to said sliding direction; a gear mounted on a rotary shaft provided on said body; a restraining cam provided with dent portions at equal intervals on its circumference; a driving member having engaging means thereon, said driving member including a driven gear; a restraining lever mounted on said body and being provided with a restraining projection element, spring means urging said element into contact with said cam; an electromagnet device for turning said lever against said spring means; a clutch lever provided with an idle gear for following up after said lever has been turned by said electromagnet device; a driving gear interlocking with a prime mover; and a line change-over member; whereby the engagement of said restraining projection element and said dent portion is released by operation of said electromagnet, and at the same time, said idle gear connects said driving gear with said driven gear, and said driving member turns in one direction until said restraining projection element engages again with said dent portion, and in the meantime said engaging means engages with one of said toothed portions and delivers one of said original picture frames in a row corresponding to said one toothed portion, and after the final tooth of said one toothed portion in said row is delivered, the turning of said driving member operates said line change-over member to displace said one original picture holding frame and said pedestal relative to said body, and said engaging means engages with the other of said toothed portions to deliver it to the opposite direction one-by-one.

Claim 10

A film transport device for a projector comprising: an original picture holding frame having two lined and toothed portions arranged in parallel relation with one another, and provided with a plurality of original picture frames arranged in two rows substantially in the same plane in parallel with said portions, engaging means provided on the exterior of both ends of said portions at right angles therewith; a pedestal having a guide means for supporting said original picture holding frame for sliding movement in a direction along said rows; a projector main body including a guiding member for supporting said pedestal for displacement perpendicularly to said sliding direction; a driving member mounted on said body in a manner as to be turned in one direction for intermittently coupling with a prime mover provided with a clutch means; engage projection elements mounted on said driving member; and line change-over projection elements mounted on said driving member outwardly of said engage projection elements, said line change-over elements having shorter longitudinal axes as compared to the longitudinal axes of said engage elements; whereby said engage projection elements engage with one of said toothed portions when said driving member is turned to slide one of said holding frames relative to said pedestal while out of engagement with said engaging means, and when the final tooth of said one tooth portion in said row is delivered, the line change-over projection elements engage with said engaging means in accordance with continued turning of said driving member while out of engagement with said toothed portions so as to displace said pedestal and said holding frame perpendicularly to the sliding direction thereof, and said engage projection elements engage with said toothed portion in the other of said rows.

Claim 11

A film transport device for a projector comprising: an original picture holding frame having two lined and toothed portions arranged in parallel relation with one another, and provided with a plurality of original picture frames arranged in two rows substantially in the same plane in parallel with said portions, engaging means provided on the exterior of both ends of said portions at right angles therewith; a pedestal having a guide means for supporting said original picture holding frame for sliding movement in a direction along said rows; a projector main body including a guiding member for supporting said pedestal for displacement perpendicularly to said sliding direction; a driving member mounted on said body in a manner as to be turned in one direction for intermittently coupling with a prime mover provided with a clutch means; engage projection elements mounted on said driving member; and line change-over projection elements mounted on said driving member outwardly of said engage projection elements, said line change-over elements having shorter longitudinal axes as compared to the longitudinal axes of said engage elements; whereby said engage projection elements engage with one of said toothed portions when said driving member is turned to slide one of said holding frames relative to said pedestal while out of engagement with said engaging means, and when the final tooth of said one tooth portion in said row is delivered, the line change-over projection elements engage with said engaging means in accordance with continued turning of said driving member while out of engagement with said toothed portions so as to displace said pedestal and said holding frame perpendicularly to the sliding direction thereof, and said engage projection elements engage with said toothed portion in the other of said rows.

Claim 12

A film transport device for a projector comprising: an original picture holding frame having two lined and toothed portions arranged in parallel relation with one another, and provided with a plurality of original picture frames arranged in two rows substantially in the same plane in parallel relation with said portions; a pedestal having a guide means for supporting said original picture holding frame for sliding movement in a direction along said rows; a projector main body including a guiding member for supporting said pedestal for displacement perpendicularly to said sliding direction; a driving member mounted on said body in a manner as to be turned in one direction for intermittently coupling with a prime mover provided with a clutch means; engage projection elements mounted on said driving member; and a line change-over lever having operation projection elements mounted on said body symmetrically relative to said driving member, spring means urging said lever into engagement with said engage projection elements and engageable with said guide means; said guide means having stepped portions corresponding to the final tooth of said toothed portions arranged in parallel relation therewith, so that when said engage projection elements engage with said final tooth in one of said two rows for moving it, said operation projection elements is on said stepped portions, and when said engage projection elements in turning moves said lever, said operation projection elements moves said stepped portions so as to displace said original picture holding frame together with said pedestal, and said engage projection elements thereby engage with said toothed portion in the other of said rows.

Claim 13

A film transport device for a projector comprising: an original picture holding frame having two lined and toothed portions arranged in parallel relation with one another, and provided with a plurality of original picture frames arranged in two rows substantially in the same plane in parallel relation with said portions; a pedestal having a guide means for supporting said original picture holding frame for sliding movement in a direction along said rows; a projector main body including a guiding member for supporting said pedestal for displacement perpendicularly to said sliding direction; a driving member mounted on said body in a manner as to be turned in one direction for intermittently coupling with a prime mover provided with a clutch means; engage projection elements mounted on said driving member; and a line change-over lever having operation projection elements mounted on said body symmetrically relative to said driving member, spring means urging said lever into engagement with said engage projection elements and engageable with said guide means; said guide means having stepped portions corresponding to the final tooth of said toothed portions arranged in parallel relation therewith, so that when said engage projection elements engage with said final tooth in one of said two rows for moving it, said operation projection elements is on said stepped portions, and when said engage projection elements in turning moves said lever, said operation projection elements moves said stepped portions so as to displace said original picture holding frame together with said pedestal, and said engage projection elements thereby engage with said toothed portion in the other of said rows.