US3892352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Target simulator for a sighting apparatus
Assignee: Rheinmetall Air Defence AG
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Filing: 1974-02-19
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Granted: 1975-07-01
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Expires: 1994-02-19
Abstract
Abstract A target simulator for a sighting device of a gun, comprising A LIGHT SOURCE FOR TRANSMITTING A LIGHT BEAM, A FIRST MOVABLE MIRROR ARRANGED IN THE PATH OF SAID LIGHT BEAM FOR PORTRAYING BY A FIRST LIGHT MARK THE APPARENT MOVEMENT OF A TARGET WHICH IS TO BE ATTACHED AT A GROUND GLASS-PLATE, A SECOND MOVABLE MIRROR ALSO ARRANGED IN THE PATH OF SAID LIGHT BEAM FOR GENERATING A SECOND LIGHT MARK WHICH IS EFFECTIVE FOR INDICATING AN AIMING ERROR ARISING DURING ADJUSTMENT OF THE SIGHTING DEVICE, FIVE SYNCHRONOUS DRIVES FOR MOVING SAID TWO MIRRORS A. ACCORDING TO A PROGRAMMABLE DISTANCE FROM THE GUN TO A CROSSING POINT OF THE LINEAR FLIGHT PATH OF THE TARGET, B. ACCORDING TO A PROGRAMMABLE INCLINATION ANGLE OF THE FLIGHT PLANE WITHIN WHICH THERE IS LOCATED THE TARGET TO BE SIMULATED, C. ACCORDING TO A PROGRAMMABLE TARGET VELOCITY FOR GENERATING THE APPARENT TARGET MOVEMENT, D. ACCORDING TO A FLIGHT INCLINATION ANGLE, E. ACCORDING TO AN AZIMUTH ANGLE AT THE MOMENT WHEN THE TARGET APPEARS.
Inventors
- 👤 Hans Eglin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:36
CPC Classifications
F; F41; F41G; F41G3/00; F41G3/26; F41G3/2616; F41G3/2694; F41G3/2622; F41G3/2644
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
287 words
A target simulator for a sighting device of a gun comprising; a light source (41) for transmitting a light beam; a ground-glass plate (47); a first movable mirror (45) arranged in the path of said light beam for portraying at said ground-glass-plage (47) by means of a first light mark (ML) the apparent movement of a target (M) which is to be attacked; a scond movable mirror (54) arranged in the path of said light beam for generating a second light mark (TL) which is effective for indicating an aiming error arising during adjustment of the sighting device; a first lever arm (40), the first mirror (45) being arranged at an end of said first lever arm (40); a second lever arm (30), the second mirror (54) being arranged at an end of said second lever arm (30); drive means (23, 31, 32, 33, 36, 37, 38) for operatively interconnecting both lever arms with one another; means for mounting said two lever arms (30, 40) so as to be movable about three axes (a-a, b-b, c-c) which are perpendicular to one another; means for motor driving (5, 10, 13, 16, 27) said movable lever arms (30, 40) about each such axes (a-a, b-b, c-c) by an amount corresponding to: a. a programmable distance (eW) from the gun (G) to a crossing point (W) of the linear flight path (FW) of the target, b. a programmable inclination angle ( Tau ) of the flight plane (FE) within which there is located the target to be simulated, c. a programmable target velocity for generating the apparent target movement; and manual adjustment means (65, 66) provided for the azimuth angle ( delta ) and the elevation angle ( gamma ).
Claim 2
Dependent Claim
287 words
A target simulator for a sighting device of a gun comprising; a light source (41) for transmitting a light beam; a ground-glass plate (47); a first movable mirror (45) arranged in the path of said light beam for portraying at said ground-glass-plage (47) by means of a first light mark (ML) the apparent movement of a target (M) which is to be attacked; a scond movable mirror (54) arranged in the path of said light beam for generating a second light mark (TL) which is effective for indicating an aiming error arising during adjustment of the sighting device; a first lever arm (40), the first mirror (45) being arranged at an end of said first lever arm (40); a second lever arm (30), the second mirror (54) being arranged at an end of said second lever arm (30); drive means (23, 31, 32, 33, 36, 37, 38) for operatively interconnecting both lever arms with one another; means for mounting said two lever arms (30, 40) so as to be movable about three axes (a-a, b-b, c-c) which are perpendicular to one another; means for motor driving (5, 10, 13, 16, 27) said movable lever arms (30, 40) about each such axes (a-a, b-b, c-c) by an amount corresponding to: a. a programmable distance (eW) from the gun (G) to a crossing point (W) of the linear flight path (FW) of the target, b. a programmable inclination angle ( Tau ) of the flight plane (FE) within which there is located the target to be simulated, c. a programmable target velocity for generating the apparent target movement; and manual adjustment means (65, 66) provided for the azimuth angle ( delta ) and the elevation angle ( gamma ).
Claim 3
Dependent Claim
53 words
The target simulator as defined in claim 1, said mounting means including a traverse (22) mounted for to-and-fro movement along axes (a-a) (c-c) which are perpendicular to one another, said first lever arm (40) being pivotably mounted at said transverse (22), said second lever arm (30) being movably connected with said traverse (22).
Claim 4
Dependent Claim
34 words
The target simulator as defined in claim 2, said drive means further including a curve (34) embodying the ballistics of the weapon and determining a transmission ratio for said interconnected lever arms (30, 40).
Claim 5
Dependent Claim
104 words
The target simulator as defined in claim 3, further including a lengthwise displaceable carriage (21), said traverse (22) being arranged at said lengthwise displaceable carriage (21), a ring member (12) Movable about two axis (b-b) (c-c) which are perpendicular to one another, said carriage (21) being arranged on a carrier (14) which is elevationally displaceably movable at said ring member (12), bearing means (8) for the ring member (12) for rendering possible movement of the ring member (12) about a vertical axis (c-c), said bearing means (8) being pivotable about a transverse axis (b-b) which intersects a null position of the first mirror (45).
Claim 6
Dependent Claim
51 words
The target simulator as defined in claim 4, further including bracket means (2) for supporting the bearing means (7, 8) of the ring member (12), a frame (1), said bracket means (2) being pivotably mounted at said frame (1) which is adjustable in its spacing (A) from the ground-glass plate (47).
Claim 7
Dependent Claim
65 words
The target simulator as defined in claim 5, wherein the drive means of components (2, 6, 12, 14 21) which are movable relative to one another comprises servo-motor means (M5, M10, M13, M27, M70), programming means (PG) for controlling said servomotor means, and a servo-motor (M16) equipped with a tachogenerator for controlling components (21, 22) simulating the velocity of the target (M) to be portrayed.
Claim 8
Dependent Claim
31 words
The target simulator as defined in claim 6, further including means (70) for adjusting the spacing (A) between the ground-glass plate (47) and a null point (G) of the target simulator.
Claim 9
Dependent Claim
165 words
The target simulator as defined in claim 4, further including a toothed rack (36) fixedly connected with the carriage (21) driven by a drive motor with tachogenerator (M16), said traverse (22) being secured to said toothed rack (36), a toothed segment (32) rotatably mounted at a bolt (23) and meshing with said toothed rack (36), said toothed segment (32) being provided with a lever arm (31) engaging by means of a pin (33) at the curve (34) embodying the ballistics of the weapon of a T-arm defining said second lever arm (30) pivotably mounted at the ring member (12), a support (37) rigidly connected with the toothed rack (36), said support (37) engaging by means of a bolt (38) in a groove (39) of an M-arm defining said first lever arm (40) pivotably mounted at the ring-member (12), wherein during substantially linear movement of the carriage (21) there occurs a curve-controlled pivotal movement of the first lever arm (40) and the second lever arm (30).
Claim 10
Dependent Claim
100 words
The target simulator as defined in claim 1, wherein the drive means of the first movable mirror (45), for the purpose of portraying a flight of a plurality of aircrafts, is provided with a timing mechanism (ZW) which can be intermittently turned-on for portraying the flight of a plurality of aircrafts according to a predetermined timing program, wherein at the intervals between the switching operations of the timing mechanism (ZW) there can be carried out an automatic change of the parameters characterizing the flight altitude (h), the flight direction ( delta ) or the flight inclination angle ( gamma ).
Claim 11
Dependent Claim
44 words
The target simulator as defined in claim 1, further including diaphragm means (49, 58) arranged at the path of the light beam, the opening of said diaphragm means (49, 58) being variable as a function of the simulated flight time of the simulated target.
Claim 12
Dependent Claim
77 words
The target simulator as defined in claim 1, further including a laser light source constituting said light source (41), optical means (18, 18a) including reflector means (42, 43, 44, 45, 50, 53, 54, 55, 56, 57) and variable diaphragm means (49, 58) for spreading out the laser light beam in its cross-section such that there appears upon the ground-glass plate (47) a target image which increases in size in proportion to a reduction in the target distance.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |