Package and article carriers – Carried by animate bearer – Flaccid attaching means looped around neck or crossing shoulder
Patent
1989-01-19
1990-12-11
Sholl, Linda J.
Package and article carriers
Carried by animate bearer
Flaccid attaching means looped around neck or crossing shoulder
224211, 224908, 354 82, 354293, 352243, A45F 308
Patent
active
049763873
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a wearable mounting, in particular a jolt-protected body-mounted support, for recording with a film or video camera.
For recording with a mobile camera it is usual to place it on a carriage which moves along a predetermined path, whether this be on rails or a track laid down for this purpose.
Another technique, which avoids the laying down of such a path, comprises the use of a mounting to be worn by the cameraman. In this arrangement, there is still the difficulty to be overcome of holding the camera steady irrespective of the undesirable movements of the body; numerous arrangements have been proposed for this purposes. U.S. Pat. No. 4,394,075 (as well as U.S. Pat. No. 4,474,439) discloses an arrangement having an arm which is attached in articulated fashion on a support framework and is adapted to the upper part of the human body. This arrangement also has numerous disadvantages which are of both mechanical and ergonomic nature.
The damping for each of the two half-arms which form this arrangement requires the mounting in series of three tension springs, which are connected to one another by a cable, as well as of two pulleys for accommodating a sufficient number of windings in the interior of the first half-arm in order thereby to enable the arrangement comprising the three springs to behave like a single spring which is aligned along the diagonals of the deformable parallelogram which each of the two half-arms forms.
The large number of connections comprising springs/cables/pulleys makes the arrangement fault-prone, making the use of a second back-up cable necessary; for if the arrangement comes apart due to the separation of the connections, the cable can injure the cameraman. This arrangement furthermore requires a duplication of all the parts for the two articulated half-arms, thereby increasing the weight of the arrangement.
It is furthermore not possible to adapt this known arrangement to the weight of different cameras or to different modes of operation using different additional parts without altering the properties of the damping springs (in particular the spring tension), this having the consequence that a single spring is insufficient for a given weight; a change in weight has the effect that sufficient damping is no longer present along the entire path travelled by the holding arm.
As seen from the front, the attachment point for the damping arm is a long way to the side with respect to a center line through the body. This point generates a moment of force by the swivelling of the support framework, which does not rest fixedly at the sides of the cameraman. This embodiment of the support framework has the effect that the chest strap absorbs the majority of the force and compresses the sides severely.
As seen from the side, the attachment of the arm is very far forward. The distance of the attachment point from the plane in which the spinal column lies, at lumbar level, considerably increases the moment originating from the various forces applied there. This means that the lumbar region must absorb a major part of the forces which result from the moments, by reason of the camera weight and of the accessories (video monitor . . . ), with respect to the spinal column and from the forces which act on the narrow side of the parallelogram, exerted by the tension springs at the level of the arm attachment.
The chest strap of the support framework limits the breathing movements and hinders the free movements of the shoulder strap and consequently the mobility of the upper limbs which are supposed to execute the camera movements with as little vibration as possible. The location of the attachment of the arm furthermore impairs the shoulder straps with regard to the absorption of the forces resulting from the weight of the arm and of the camera. The spinal column as a whole is thereby subjected to worse loads.
Another arrangement which likewise has numerous disadvantages is known from U.S. Pat. No. 4,206,983.
In mechanical respects, this arrangement requires the use of numerou
REFERENCES:
patent: 3332593 (1967-07-01), Fauser
patent: 4017168 (1977-04-01), Brown
patent: 4037763 (1977-07-01), Turchen
patent: 4206983 (1980-06-01), Nettman et al.
patent: 4298149 (1981-11-01), Gottschalk et al.
patent: 4394075 (1983-07-01), Brown et al.
patent: 4474439 (1984-10-01), Brown
Brown Laurence R.
Sachtler AG Kommunikationstechnik
Sholl Linda J.
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