Showing papers on "Tripod (photography) published in 1982"

Uniform speed universal joint

Abstract: PURPOSE:To greatly decrease the frictional resistance of the titled tripod type uniform speed universal joint by disposing in an oscillating manner a guide ring provided with rollers on a spherical receiving surface provided in a trunnion of the tripod joint. CONSTITUTION:Three grooves 10a parallel to the axis are provided equidistantly in an outside driving member 10 of a first shaft 11. Spherical receiving surfaces 17a are provided in three spiders 17 of an inside driving member 13 of a second shaft 14. A guide ring 18 provided around its outer periphery with a large number of sphereical bodies is disposed on the spherical receiving surface 17a. By inserting the guide ring 18 in the groove 10a, a tripod type uniform universal joint is formed.

Camera pan head with tilt tension control

Abstract: A camera pan head having a precise tilt tension control. The camera pan head is comprised of a L-shaped camera supporting plate rotatably attached to a post on a swivel block rotatably mounted on a tripod. The support plate is a spring biased friction plate and an adjustable cap-nut. Adjustment of the cap-nut adjusts the tilt tension on the friction plate.

Axially retained tripod joint

Abstract: A homokinetic joint includes rollers mounted to swivel on the spherical ends of arms of a tripod element by means of free diabolo-shaped rolling elements. Three pairs of runways are provided in a bowl element for the rollers. These runways are curved in planes parallel to an axial plane of the bowl element. Two floating rings maintain the mean planes of the rollers parallel to one another. The tripod element is in this way axially retained in the bowl element by the retention of the rollers in the runways axially of the bowl element by a combined effect of the curved shape of the runways and the maintenance of the mean planes of the rollers parallel to one another, with no need for other devices. This joint is compact, highly efficient, and has a high torque-transmitting capacity and a large break angle.

Locking tripod leg

Abstract: An adjustable tripod leg is disclosed having a first leg member with an axial track and a second leg member axially movable with respect to the first. Brake shoes are associated with the second leg member and include means for following the track. Also included is a cam biasing member which selectively biases the brake shoes into frictional contact with the track to prevent relative axial motion of the leg members.

Locking mechanism for tripod and spreader legs

Abstract: A mechanism for interlocking adjustable tripod and spreader legs, including a pin fixed to the tripod leg, a pin receiving slot in the spreader leg, a latch plate pivotable with respect to the spreader leg and including a locking flange for retaining the pin in the slot, and biasing means for positioning the plate in its pin retaining position.

Element of a tripod-type homokinetic joint

Abstract: A homokinetic joint element, in particular for the transmission of power for motor vehicles, comprises a sleeve (3) intended to receive a tripod (7, 9, 11) and one end of which interacts with an attached piece (13) which is welded by electron bombardment or by laser beam onto the abovementioned end of the sleeve (3).

Device in universal head for tilting camera to the left and right

Abstract: The invention relates to a device in a universal head for rocking a camera attached to a tripod. The device includes a table attached to the upper end of the tripod and provided with a central boss protruding upright therefrom, and a rotary sleeve mounted on the table for rotation in the horizontal directions and in such a manner as to be rocked to the left and right. As the rotary sleeve is rotated to the left and right, the position of contact point between the cam portion and the cam receiving member is changed to rock the camera to the left and right together with the tilt bed.

Electric driver of camera

Abstract: PURPOSE:To improve operability by improving the sense of holding a camera by providing an electric driver, attachable to and detachable from the camera, with a grip part shaped so that it forms one body with a camera-side grip. CONSTITUTION:A grip 3 is fitted to a camera body 1. While a protective cover 5 at the bottom of the camera 1, the positioning pin 8 of a motor driver 2 is inserted into the positioning hole 7 of the camera body 1 and with a grip part 4 fitted to the camera, a fitting screw 10 is screwed into a tripod socket 9, thus fitting the motor drive 2 to the camera body 1. Consequently, the grip 3 of the camera 1 and the grip 4 of the motor drive 2 form one grip body and film-advance couples 16 and 17 of the both are connected mechanically while terminals P1 and P3 and P2 and P4 of the both are also connected electrically.

Homokinetic tripod joint and the application of the joint in a wheel hub structure

Abstract: A homokinetic tripod joint includes a first element connected to rotate with a tripod element having rollers and a second element having runways for the rollers. The first and second elements form a ball and socket connection with the first and second elements having, respectively, complementary concave and convex spherical surfaces. The joint includes a bayonet connection having recesses in the concave spherical surface of the first element and corresponding segments on the convex spherical surface of the second element the joint also includes an abutment member having a convex spherical surface with a shape complementary to the second element.

Servo erecting camera tripod - has remote controlled spring driven worm gear and gear driven strut ratchets

Abstract: The tripod legs (3) are folded back over the tripod head to enclose the camera mounting. The heads (5) of the legs are cut with gear teeth and are gripped by a worm gear (4) driven by an internal spring motor (9) remote released. The legs fold back through more than 90 degrees and automatically raise the tripod head over the ground. The tripod and camera may be dropped from an aircraft and then erected by remote control. As the legs unfold they tilt the tripod head flat onto the ground, with the legs at right angles. Further action of the motor then raises the tripod head. The legs ends can be hinged (17) to sit on rough ground.