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Title:
HOLD-DOWN DEVICE FOR UNFOLD ABLE FUNCTIONAL MEMBER
Document Type and Number:
Japanese Patent JPS5940999
Kind Code:
A
Abstract:
A hold-down apparatus clamps functional elements, for instance solar cell panels which are unfoldable from a carrying body, possibly a spacecraft, in their folded condition. The folded functional elements (15) rest on a counter support (3) provided on the carrying body. A pressure piece (4) is mounted on the outermost functional element (15a). A swingable retaining arm or bail (5) rests with its one end on the pressure piece (4). In order to produce a high biasing force in the locked position, and in order to be able in an easy and reliable manner to reverse at any time from the unlocked to the locked position, the hold-down apparatus has the following features. A lever arm (7) is articulated or journalled to the counter support (3) and may be rotated by means of a drive element (10). The lever (7) is rotatably connected at one of its ends to the retaining arm or bail (5) which is biased by a spring (9) pressing in the direction toward the pressure piece (4). Through pulling the lever arm (7) the retaining arm or bail (5) comes into the locked position, in which it rests on the pressure piece (4), and in which it comes under tensile stress due to its purposely chosen short length for clamping the functional elements in their folded condition.

Inventors:
RIYUUDEIGERU EUARUTO
Application Number:
JP13791383A
Publication Date:
March 06, 1984
Filing Date:
July 29, 1983
Export Citation:
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Assignee:
MESSERSCHMITT BOELKOW BLOHM
International Classes:
B64G1/44; B64G1/22; F24J2/36; F24J2/54; (IPC1-7): B64G1/44
Domestic Patent References:
JPS577800A1982-01-14