JPS607378A - Operating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is an operating device for moving at least one indicator mark faded in on the screen of a radar or hydrosonic detector by means of a manually operated ball. such that the deflection of said ball is caused in two distance components relative to both axes of Cartesian coordinates by two distance sensors engaging said ball, and furthermore, I? - of the type provided with a bearing device for fixation for rotation about its central point.

PRIOR ART In the case of known operating devices of the type mentioned above, Dahl
It is held between two perforated disks spaced apart from each other, the hole diameter of the perforated disks being smaller than the diameter of the ball. In the case of such operating devices, the ball is moved by vibrations, and this leads to undesirable adjustment of the indicator mark. Furthermore, X
The ball is not moved equally easily in all directions of rotation, and the movement is still significantly affected by contamination on the ball, such as penetrating liquid, sweat or dust deposits, or by temperature fluctuations. affected.

, Problems to be solved by the present invention Problems to be solved by the present invention: For example, the ball is not vibrated by normal driving operation, and furthermore, the ball is not vibrated in the normal driving operation, and furthermore, the ball is not vibrated in the same way in all directions of rotation without one or more special tensile directions. It is an object of the present invention to provide an operating device of the above-mentioned type in which the movement of the ball is simple and in this case the movement of the ball is independent of temperature and insensitive to all kinds of dirt.

Means for Solving the Problems The structure of the present invention which solves the above-mentioned problems is such that the bearing device includes a bearing ring that surrounds the ball at intervals by three roller R6b bearings that are offset by 120 degrees from each other. has,
In addition, each roller bearing has a rolling element that contacts the i-ru, and the rolling element is in contact with the center point of the rolling element.
- The straight line connecting the center point of the ring and the center axis of the support ring form an angle of 45 degrees to 90 degrees.

According to an advantageous embodiment of the invention, the angle between the center axis of the bearing ring and the straight line connecting the center point of the rolling element and a point ++L in the ball is approximately 80 degrees. Such a configuration results in the best possible movement of the ball in all directions of rotation, with at the same time a high resistance to horizontal vibrations.

In a further advantageous embodiment, each roller bearing has a second rolling element which is arranged above the rolling element and rests against the ball with a spring claw. With this arrangement, the ball is not unduly adjusted even by vertical vibrational excitations. The amount of vibrational excitation that can be moved away from the ball is related to the amount of spring force chosen. without compromising the movement of the ball.
In this manner, the vibration strength of the ball of values greater than 11 is increased in the vertical direction. Furthermore, the embodiment according to claim 5 is characterized in that the ball is fully functional in all conditions, for example in case of severe seasickness, as claimed in claims 6 to 8. When combined with any of the above, it becomes even more advantageous. With such a configuration, the operating device according to the invention is technically simple and inexpensive to manufacture.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The operating device shown in side view in FIG. 1 serves to manually move at least one indicator mark, a so-called position mark, which is faded into the screen of a radar or hydrosonic detector. The operating device is
The deflection of the ball is caused by two distance sensors 11, 12, which engage the ball at right angles to each other, in two distance components ν, which are related to both axes of Cartesian coordinates. It will be done. Both distance sensors 11, 12 rest against the groove 10 by means of rubber rollers 13 or 14 and have rotation signal generators 15 or 16, which electrically detect the rotation of the rubber rollers. Convert to a standard adjustment value. The ball 1o is fixed in a bearing device 17, which is constructed so that the ball 10 can freely rotate about its center point. Both distance sensors 11, 12 are also fastened to the housing 18 of the bearing device 17.

As can be seen in particular from FIG. 2, the bearing device 17 has a bearing ring 19 which surrounds the ball 10 at a distance. Three identical roller bearings 20 are arranged in the bearing ring 19, which are distributed over the outer circumference and are in each case offset from one another by 120 degrees. Furthermore, the bearing ring 19 has a recess 21 in each case at the location of the roller bearing 20, which recess starts from an end face 31 of the bearing ring located at right angles to the central axis 24. , in short, one roller bearing 2 in each of a total of δ cutouts 21 distributed over the outer circumference.
0 is maintained (Figure 3).

Each roller bearing 20 has a first rolling element 22 that comes into contact with the ball 10, and the rolling element has a straight line 23 connecting the center point of the rolling element 22 and the center point of the roller 10. ,
It is arranged so as to form an angle α of 45 degrees to 90 degrees with the central axis m24 of the support ring 19. In the exemplary embodiment, a value of α2800 has been chosen as the advantageous angle.

Each roller bearing 20 furthermore has a second rolling element 25, which is arranged above the first rolling element 22 and which, under spring pressure, can now be moved by nine balls 10. is in contact with. The second rolling element 25 is arranged symmetrically with respect to the first rolling element 22, so that a straight line 26 connecting the center point of the upper rolling element 25 and the center point of the ball 10 and the support ring 19 The angle β formed by the central axis 24 is the same as the angle α described above.

In the embodiment shown in the drawing of the operating device, the rolling elements 22.2
5 is formed as a ball bearing, and the shaft 2 of the rolling element
7.28 is oriented at right angles to the solid axis 24 of the bearing ring 19. As usual, ball bearings each have an outer ring and an inner ring, between which the balls are fitted. The outer ring forms the outer surface of the rolling element 22.25 which bears against the balls 10, whereas the inner ring is fixedly mounted on the shaft 27.28. In order to hold the rolling elements 22,25 in the recess 21, the recess has a borehole 3o opening on opposite sides and two holes opening into the recess 21. The perforations 30 are each aligned with one another. These perforations 30 extend as far as the annular end 31 of the bearing ring 19 . In these holes 30, both ball 11Qh receivers or rolling elements 22 are placed.
．． 25 shafts 27 or 28 are guided. A cover ring 33 (FIGS. 1 and 3) for closing the notch is fixed to the ring-shaped end surface 31 of the support ring 19, and is further fixed by a screw 29. As can be seen from FIG. 3, the cover ring 33 reaches close to the top surface of the daal 10. Each roller bearing 20 has
Two compression springs 32 are provided between the shaft 2δ of the upper second rolling element 25 and the cover ring 33, and the compression springs are not machined on either side of the ball bearing or the striped rolling element 25. With ball bearings or upward transfer to ○250 produces different crimping forces. Compression spring 32 is shown schematically in FIG.

Effects of the Invention The advantage obtained with the operating device according to the invention is that the ball can be moved very easily in all directions of movement. Furthermore, the bearing is temperature-independent and dirt-insensitive, so that the easy movement of the ball remains maintained even under unfavorable environmental conditions. Horizontal vibrations up to magnitudes up to 42 remain unaffected by the ball, so that the ball does not undergo any undesirable movements even in rough driving.

[Brief explanation of the drawing]

1 is a side view of the operating device, FIG. 2 is a plan view of the operating device shown in FIG. 1 with the two cover rings removed, and FIG. FIG. 10...-71 len, 11.12... distance sensor,
13.14...Rubber roller, work 5, 16...Rotation signal generator, 17...-Support device, 18.Casing,
19...Support ring, 20...Roller bearing, 21...
- Notch, 22 - Rolling element, 23 - Straight line, 24 - Center axis, 25 - Rolling element, 27. 28 -, Lift, 29 - Screw, 30 - Drilling, 31 One end surface, 32 - - compression spring;
3δ Covering Fig, 3 Fig, 2

Claims (1)

[Claims] 1. An operating device for moving at least one indicator mark faded in on a screen of a radar or an underwater sonic detector by a manually operated ball, the turning of the ball comprising: 2 that engages the ball
two distance components related to both axes of the Cartesian coordinate,
In the type further provided with a bearing device for fixing the ball for rotation about its center point, said bearing device (17) is spaced apart by three roller bearings (20) offset by 120 degrees with respect to each other. Place the ball (10
), and each roller bearing (20) has a rolling element (22) that abuts the ball (10); However, the straight line (23) connecting the center point of this rolling element (22) and the center point of the ball (10) and the center axis (24) of the support ring (19) are between 45 degrees and 90 degrees. angle (α
). 2. The angle (α) formed by the central axis (24) of the support ring (19) and the straight line (23) connecting the center point of the rolling element (22) and the center point of the 71 ring (10) is approximately 80 degrees. An operating device according to claim 1. Convex, each roller bearing (20) is a rolling element (22
) is placed above the spring crab ball (10)
3. The operating device according to claim 1, further comprising a second rolling element (25) that comes into contact with the second rolling element (25). 4. Claim 3, wherein the second rolling element (25) is arranged approximately symmetrically with respect to the first rolling element (22).
Operating device as described in section. 5. The rolling elements (22, 25) are each formed by an outer ring of a ball bearing, and the shaft (27, 28) for receiving the inner ring of the rolling element is aligned with the center axis (
24) An operating device according to any one of claims 1 to 4, which is oriented substantially perpendicularly to the device. 6. At the location of the roller bearing (2o), the bearing ring (19) has in each case one recess (2
1), and on opposite sides of the notch (21) are bored holes (30) aligned with each other and reaching as far as the end face (31).
) is open and the shafts (27, 28) of the rolling elements (22, 25) enter the borehole. 7. A cover ring (33) that closes the notch (21) is fixed on the end face (31) of the support ring (19), and the cover ring reaches close to the ball (10) and closes the shaft. , and further the 20th roller bearing (20) of each roller bearing (20).
6. At least one compression spring (32) held in the borehole (30) is fixed between the axis of the upper rolling element (25) and the cover ring (33). Operating device as described.