Camera driving control device

Claim 2

A motor drive control apparatus for a camera, comprising a first motor for wind-up and a second motor for releasing; a control slider for making a forward movement when a wind-up mechanism of said camera reaches a limit point; a release slider driven to make reciprocating movements by said second motor; a control lever engaging with said control slider; a locking lever supported on said control lever, said locking lever being moved from its locking position by the forward movement of said control slider for releasing said second motor to rotate; a worm wheel for transmitting rotation of said second motor to said release slider for giving a forward movement to said slider to effect shutter release and a return movement for giving said control slider a return movement thereby returning said control lever to its original position and at the same time shifting said locking lever to a locking position for stopping the rotation of said second motor.

Claim 3

For a camera having a wind-up mechanism and a shutter release, a motor drive control apparatus, comprising: first motor means for winding up the wind-up mechanism, a control slider responsive to the wind-up mechanism and executing a forward movement when a wind-up mechanism reaches a limit point, a control lever engaging said control slider and movable thereby, second motor means for operating said shutter release, a locking lever supported on said control lever and movable by said control lever from a position in which it locks said second motor means in position to a second position in which it releases said second motor means, a reciprocable release slider engageable with said control slider and capable of actuating the shutter release, worm wheel means coupled to said second motor means for imparting a forward motion to said reLease slider so that said release slider actuates the shutter release and executes a return movement for imparting a return movement to said release slider so that said release slider returns said control lever to its original position and at the same time shifts said locking lever to its locking position so as to stop rotation of said second motor means.

Claim 4

For a camera having a wind-up mechanism and a shutter release, a motor drive control apparatus, comprising: first motor means for winding up the wind-up mechanism, a control slider responsive to the wind-up mechanism and executing a forward movement when a wind-up mechanism reaches a limit point, a control lever engaging said control slider and movable thereby, second motor means for operating said shutter release, a locking lever supported on said control lever and movable by said control lever from a position in which it locks said second motor means in position to a second position in which it releases said second motor means, a reciprocable release slider engageable with said control slider and capable of actuating the shutter release, worm wheel means coupled to said second motor means for imparting a forward motion to said reLease slider so that said release slider actuates the shutter release and executes a return movement for imparting a return movement to said release slider so that said release slider returns said control lever to its original position and at the same time shifts said locking lever to its locking position so as to stop rotation of said second motor means.

Claim 5

An apparatus as in claim 2, wherein motor driving means responsive to the position of said control slider drives said second motor means, said driving means including a power source and absorption means for absorbing the inertial movement of said second motor means when current supply from the power source to said second motor means is cut off, said driving means including a differentiating circuit for enabling said absorption means.

Claim 6

An apparatus as in claim 3, wherein said driving means includes a drive control circuit, said absorption means including a braking control circuit, said driving control circuit being responsive to said motor driving means reaching a predetermined signal lever so as to connect said power source to said motor means, said braking control circuit receiving an input signal through said differentiating circuit when the input signal to said driving circuit reaches a control signal level, said braking control circuit bypassing current generated across said second motor means by the inertial rotation of said second motor means and the countercurrent produced thereby.

Claim 7

For a camera having a wind-up mechanism and a shutter release, a motor drive control apparatus, comprising: first motor means for operating said wind-up mechanism, second motor means for operating the release mechanism, a power source, first driving control means coupling said power source to said first motor means, second driving control means coupling said power source to said second motor means, follower means responsive to said second motor means, shutter release means responsive to said follower means for actuating said shutter release, detector means for detecting a predetermined rotational position of said follower means, said second driving control means being responsive to the first motor means reaching a predetermined position, and stopping means for stopping said follower means at the predetermined rotational position in response to the detection by said detecting means.

Claim 8

For a camera having a wind-up mechanism and a shutter release, a motor drive control apparatus, comprising: first motor means for operating said wind-up mechanism, second motor means for operating the release mechanism, a power source, first driving control means coupling said power source to said first motor means, second driving control means coupling said power source to said second motor means, follower means responsive to said second motor means, shutter release means responsive to said follower means for actuating said shutter release, detector means for detecting a predetermined rotational position of said follower means, said second driving control means being responsive to the first motor means reaching a predetermined position, and stopping means for stopping said follower means at the predetermined rotational position in response to the detection by said detecting means.

Claim 9

An apparatus as in claim 5, wherein said shutter releasing means includes means for converting the rotation of said follower means into an action for actuating the shutter release.

Claim 10

An apparatus as in claim 5, wherein said shutter releasing means includes a film counter responsive to each operation of the shutter release.

Claim 11

An apparatus as in claim 7, wherein said film counter includes disabling means for rendering said first motor means inoperative with respect to said wind-up mechanism in response to said film counter determining that the remaining number of films is zero.

Claim 12

An apparatus as in claim 5, wherein said first driving control means includes coupling means for detecting the completion of film wind-up by the wind-up mechanism and transmitting the detected signal to said second driving control means.

Claim 13

An apparatus as in claim 9, wherein said coupling means includes a torque sensor for detecting the torque of said first motor means.

Claim 14

An apparatus as in claim 9, wherein said coupling means includes electromagnetic means responsive to completion of film wind-up by the wind-up apparatus.

Claim 15

An apparatus as in claim 5, wherein said second driving control means includes circuit means for controlling the current supply to said second motor means.

Claim 16

An apparatus as in claim 12, wherein said circuit means includes a differentiating circuit having absorption means for absorbing countercurrent produced by inertial rotation of said second motor means after the current supply to said second motor means from the power source is stopped.

Claim 17

An apparatUs as in claim 13, wherein said circuit means further includes a driving control circuit, a braking control circuit, said driving control circuit being responsive to an input signal to said circuit means reaching a driving signal level for connecting the power source to said second motor means, said braking control circuit being a portion of said absorption means and responsive to the differentiation of said differentiation circuit for carrying the countercurrent when the input signal to said circuit means reaches a control signal level.

Claim 18

An apparatus as in claim 5, wherein said second driving control means includes mechanical braking means for stopping the follower means rotationally driven by said motor means at a predetermined position.

Claim 19

An apparatus as in claim 14, wherein said second motor means includes a rotating shaft, said mechanical braking means further including an engaging member coupled to said rotating shaft, a stopping member engageable with said engaging member, engagement means for engaging both of said stopping member and said engaging member and actuated in response to said detecting means.

Claim 20

A motor driving control device for a camera comprising: motor means, shutter releasing means for releasing the shutter of the camera, driving control means having a power supply coupled to said motor means for controlling the operation of said motor means, follower means rotationally driven by said motor means said follower means being operatively connected to said shutter releasing means to actuate the operation thereof, detecting means for detecting a predetermined rotational position of said follower means and for generating a signal corresponding to the predetermined rotational position of said follower means to said driving control means, and stopping means for mechanically braking said follower means and for stopping said follower means at the predetermined rotational position in response to the signal of said detecting means.

Claim 21

A motor driving control device for a camera comprising: motor means, shutter releasing means for releasing the shutter of the camera, driving control means having a power supply coupled to said motor means for controlling the operation of said motor means, follower means rotationally driven by said motor means said follower means being operatively connected to said shutter releasing means to actuate the operation thereof, detecting means for detecting a predetermined rotational position of said follower means and for generating a signal corresponding to the predetermined rotational position of said follower means to said driving control means, and stopping means for mechanically braking said follower means and for stopping said follower means at the predetermined rotational position in response to the signal of said detecting means.

Claim 22

An apparatus as in claim 17, wherein said stopping means further includes mechanical braking means movable between a position for stopping the motor rotation and a position for permitting the motor rotation, and means for enabling said braking means.

Claim 23

An apparatus as in claim 18, wherein said enabling means includes a sliding member, a stopping member for said sliding member and a regulating member which is moved by said sliding member and operates the mechanical braking means.

Claim 24

An apparatus as in claim 18, wherein said driving control means further includes an electric circuit for controlling the current supply to said motor means.

Claim 25

An apparatus as in claim 20, wherein said electric circuit further includes a differentiating circuit, a driving control circuit, and a braking control circuit; said driving control circuit being responsive to an input signal to said electric circuit reaching a driving signal level and permitting flow of current to said second motor means, said braking circuit being responsive to said differentiating circuit when the input signal to said electric circuit reaches a control signal level different from said driving signal level.