Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1987-07-16
1989-05-23
Corbin, John K.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
350 69, 250235, G02B 2610, G02B 718
Patent
active
048324256
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a rotation system for a rotating, tilting reflector.
An arrangement of this type is already disclosed in DE-OS No. 32 37 484, wherein an adjusting block can be moved by means of a spindle parallel to the axis of a rotating shaft. On the shaft is arranged a sleeve which rotates therewith, and which is displaced together with the shaft by the adjusting block and converts the axial displcement via a tilting reflector into a tilting motion for a mirror or radar lever.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a rotation system for a rotating, tilting reflector, which requires as small a space as possible.
The above object is achieved according to the present invention by a rotation system for a rotating tilting mirror or reflector which rotates around a first axis and a simultaneously can be tilted around a second axis which rotates with the first axis and is arranged perpendicular to the first axis, with the system including a first shaft rotatable relative to a stationary housing and mounted in the housing, and a device which is axially movable relative to the housing by means of a spindle, and which is connected via a tilt level with a support plate which supports the reflector and which is rotatable around the second axis; and wherein: the first shaft is hollow; the axially movable device which rotates therewith is configured as a second shaft arranged inside the first shaft; the spindle is rotatably mounted in the housing coaxial to the first and second shafts; an axially movable nut, which is rotationally fixed, is mounted on the spindle; and the nut and the second shaft are coupled via an axial bearing in their axial displacement.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is shown in detail hereinafter relative to the drawings, showing advantageous embodiments.
FIG. 1 is a sectional view of a rotation system of the present invention;
FIG. 2 is a sectional view of an alternative embodiment of the present invention.
DESCRIPTION OF THE INVENTION
The reflector Sp is mounted on a support plate P1 and can be tilted around an axis A2 perpendicular to the plane of the drawing. The tilting movement of the reflector Sp is obtained by an up and down movement of the attachment of the rocker arm K1, which is tightly connected via a pivot point L1 with the double bent or dogleg lever K2 which is connected with support plate P1. Lever K2 also carries compensation weights F as a counterbalance for the rotating reflector. Lever K3 is not connected with lever K2, but rather only sliding on it.
Reflector Sp is connected with support plate P1 and lever K2 via the reflector suspension HS which introduces the rotary movement, and is mounted rotatably via bearing L2, L3 in a stationary housing G.
In the embodiment shown in FIG. 1, the shaft W1 supports a grooved belt pulley RS1, which causes the rotation by means of the grooved belt Z1. inside the hollow shaft W1 is arranged a second shaft W2 which can slide axially. Shaft W2 is connected at its bottom end with a post St, which is carried through lengthwise holes in the first shaft and which forms the suspension for the rocker arm.
The second shaft W2 is coupled via an axial bearing L4 with an axially movable device and thus executes its axial displacement. This device consists essentially of a nut M, which engages an external thread on a rotatable spindle S and which is prevented from twisting or rotating by one or more bolts B acting as a torque support. The bolt B which is shown is connected tightly with the nut M and is mounted to be axially movably in a bearing L5 in the housing G.
With rotation of spindle S, which is connected with another grooved belt pulley RS2 through a third shaft W3 mounted rotatably in a bearing L6 disposed in the housing G, the nut M, which is not capable of rotating is moved up or down according to the direction of rotation of the spindle S and thus carries second shaft W2 with it. The axial displacement of shaft W2 is converted via the post St
REFERENCES:
patent: 3951510 (1976-04-01), Lloyd
patent: 4149777 (1979-04-01), Bunch
patent: 4155620 (1979-05-01), Rawson
patent: 4295621 (1981-10-01), Siryj
patent: 4379624 (1983-04-01), Miller et al.
patent: 4439003 (1984-03-01), Roth
patent: 4626063 (1986-12-01), Honey
Walther Gerd-Jurgen
Wech Herbert
Wippich Heinz-Georg
Ben Loha
Corbin John K.
Licentia Patent-Verwaltungs-GmbH
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