Cordless remote control shutter activation device

• US 4,801,959 A
• Filed: 11/17/1987
• Issued: 01/31/1989
• Est. Priority Date: 11/14/1987
• Status: Expired due to Fees

• Current Assignee: Ming J. Chern
• Original Assignee: Ming J. Chern
• Inventors: Chern, Ming J.
• Primary Examiner(s): Gellner, Michael L.
• Application Number:
  US07/122,860
• Time in Patent Office: 441 Days
• Field of Search: 354/266, 354/295
• US Class Current: 396/59
• CPC Class Codes: G03B 17/38 Releasing-devices separate from shutter integral with shutter G03B9/08

Abstract

A device which clamps onto one side of a camera which is cordlessly remotely operated so as to mechanically push down the shutter release button on the camera. The device comprises an inverted L shaped housing with a threaded shaft running therethrough for positioning a gripping portion and a base to support the camera. The device is battery operated to drive a motor and a series of reducing gears, which in turn drive a driving arm downwards or upwards to activate the shutter release button.

Claims

1. A remote controlled cordless shutter release activation device comprising:

(a) an inverted L-shaped housing (1), said housing (1) including a long leg which houses a threaded shaft (13) and a short leg;

said threaded shaft (13) protruding from a bottom wall of said housing (1) so as to threadably support a base (11) on a lower end thereof;

a securement arm (12) with a gripping portion (121) thereon, said securement arm (12) being rotatably fixed on an upper part of said threaded shaft (13) by securement nuts (14);

said base (11) acting in conjunction with said gripping portion (121) of said securement arm (12) to clamp one end of a camera therebetween;

(b) an antenna (541) and a driving apparatus circuit board (16) and a microswitch (62) for controlling a driving apparatus;

said antenna (541) receiving a signal from a remote control signal transmission device operated by a user;

said circuit board (16) including two FET'"'"'s (54,

     55), two OP AMP'"'"'s (56,

     57), a decoder (52), a transistor (58), and a relay (6) said antenna (541) being fixably connected to the circuit board (16) and disposed within said housing (1);

said microswitch (62) being fixed on an inside portion of the short leg of said housing (1); and

(c) said driving apparatus being housed in said short leg of said housing (1) and including;

a battery driven motor (2), a set of reducing gears (21), a driving shaft (31), a positioning nut (32) and a driving arm (3);

said motor (2) driving a set of reducing gears (21);

said reducing gears (21) driving a driving shaft (31), said driving shaft (31) threadably displacing a positioning nut (32) upwards or downwards with respect to direction of rotation of said motor (2);

said positioning nut (32) being fixed in a recess in a driving arm (3) so that said driving arm (3) is displaced together with said positioning nut (32) to press down and release a shutter release button on said camera.