摘要:
A faceshield that is securable to a protective helmet or headband having an indexable pivot joint (10) which utilizes an interference fit between an O-ring (14) and radially spaced lug (52, 92) sets. The O-ring (14) is compressed when the crests (54, 94) of the two sets of lugs (52, 92) are radially aligned. This interference holds the faceshield in a desired indexed position.
摘要:
The prosthesis consists primarly of two plates (110, 120), each fitted with anchor-fins (1110, 1210) separated by a jonting component (20) consisting of a spherical cover (21) with a cylindrical base (22) of the same diameter made in the upper surface of the lower plate (120). Each of the plates (110, 120) has threaded apertures (115, 116, 125, 126) at the rear arranged parallel to the anchor-fins (1110, 1210).
摘要:
A hull-to-caisson interface connection assembly accommodates high-tension loads between the hull (12) and a caisson (20) of a Spar-type platform (10), while facilitating angular flexing motion and constraining lateral and axial movement. The interface connection assembly includes an annular bearing shoulder (32) at the top end of caisson (20), and a laminated bearing assembly (22) mounted in the bottom of the hull (12) and defining a passage (23) through which the upper portion of the caisson (20) passes, so that the caisson shoulder (32) seats against the upper end of the bearing assembly (22). The bearing assembly (22) includes a laminated structure of alternating steel (38) and elastomeric (40) flex elements, bonded to each other to flex together as a unit, rather than sliding relative to each other. The laminated structure of the bearing assembly (22) supports the vertical tensile loads applied by the weight of the caisson (20) on the hull (12), while also accommodating the angular loads applied between the caisson (20) and the hull (12).
摘要:
A faceshield that is securable to a protective helmet or headband having an indexable pivot joint (10) which utilizes an interference fit between an O-ring (14) and radially spaced lug (52, 92) sets. The O-ring (14) is compressed when the crests (54, 94) of the two sets of lugs (52, 92) are radially aligned. This interference holds the faceshield in a desired indexed position.
摘要:
Par sa construction modulaire, ce fixateur externe permet de placer les fiches (21 à 25) dans les fragments osseux (11 à 13) en tenant compte de critères anatomiques. Les fiches sont au moins indirectement solidaires de joints universels (36 à 38) à rotules (46 à 48) autorisant l'orientation des fiches par rapport à des barres de liaison 503 et 504. Le fixateur externe comporte en outre des raccords d'articulation entre les barres de liaison (501 à 507), tels que l'articulation (7), le raccord télescopique (8) et les raccords orientables (97 à 99). Après un début de consolidation osseuse, certaines des barres de liaison et leurs raccords peuvent être supprimés, les barres (501,502) pouvant être retirées des étaux (65,66).
摘要:
An apparatus including a first portion comprising a projection extending in a first direction; a second portion comprising an aperture extending in the first direction, where the first portion and the second portion are configured for relative movement in at least the first direction; and wherein the projection extends from the first portion in the first direction between the first portion and the second portion through the aperture and wherein the aperture surrounds the projection with clearances configured to enforce limits on relative movement of the first portion and the second portion while enabling reciprocating movement of the first portion and the second portion in the first direction towards each other and away from each other.
摘要:
A device suitable for supporting a component, such as a flat display screen, which device comprises a first arm (4), which can be connected to a wall (2) with a first end thereof, being pivotable about a first pivot axis (6), and which is connected to a first end of a second arm (10) with a second end thereof, being pivotable about a second pivot axis (8), which second arm (10) can be connected to the component (15) that is to be supported with a second end thereof, being pivotable about a third pivot axis (12). The device is furthermore provided with a third arm (5), which can be connected to the wall (2) with a first end, being pivotable about a fourth pivot axis(7), and which is connected to a first end of a fourth arm (11) with a second end, being pivotable about a fifth pivot axis (9), which fourth arm (11) can be connected to the component (15) to be supported with a second end, being pivotable about a sixth pivot axis. The third (5) and the fourth (11) arm are substantially in mirror symmetry with respect to the first (4) and the second (10) arm in practically any position of the arms.
摘要:
Die Erfindung betrifft ein Drehgelenk mit zwei gegeneinander um eine Achse (2) verdrehbar angeordneten Gelenkteilen (4,9), einen in einem Gehäuse koaxial zu der Achse (2) angeordneten Kurvenring (5), der eine Kurvenbahn mit einer räumlichen Krümmung aufweist, einem in der Achse (2) angeordneten Federführungsteil und mit koaxial zur Achse um das Federführungsteil herum angeordneter Feder (3), wobei radial zur Achse (2) angeordnete Bolzen Lager (7,8) aufweisen, deren Außenumfang auf der Kurvenbahn (5) kraftschlüssig aufliegt. Um ein Drehgelenk mit Gewichtsausgleich zu schaffen, das eine sichere Funktion gewährleistet und gleichzeitig durch einen einfachen Aufbau und kompakte Bauweise kostengünstig zu fertigen ist, ist das Gehäuse im wesentlichen von den beiden Gelenkteilen (4,9) gebildet, wobei das Federführungsteil starr mit einem ersten Gelenkteil (4) verbunden ist und der Kurvenring (5) an dem Federführungsteil axial beweglich angeordnet ist, wobei das zweite Gelenkteil (9) gegen eine Bewegung in Richtung der Achse (2) arretiert ist und wobei die Bolzen (7) in dem zweiten Drehgelenk (9) fixiert sind.