JPS6383610A - Compass - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to a compass, and particularly to a marine compass or an aircraft compass.

b. Means for solving the problem: a freely suspended magnet, a compass card connected to a first member, a second member arranged to be connected to a ship, and a compass card connected to a first member; orienting means for detecting movement of one member relative to the magnet, wherein the first member is movable relative to the second member, and the compass card and the first member are movable relative to the magnet. can exercise physically,
The compass card is a compass that can be aligned with the magnet, and the first member and the compass card move relative to the magnet when changing the course direction of the ship,
The detection means passes information relating to such movement to a control means, which in turn operates a drive means to move the compass card and the first member to realign the compass card with the magnet. A compass is provided to signal the motor means.

C1 Example Figures 1 and 2 show gummy rings (phantom).
A compass lo is shown consisting of a magnet 12 surrounded by a first member shaped as a magnet and a second member in the form of an outer ring 26.

The dummy ring 22 is connected to the heavy ring upper bearing 24 and the heavy ring upper bearing 46. The heavy ring 22 is the upper bearing 2 of the heavy ring
4, the clamping is held firmly by naphts 21.

The upper ring bearing 24 is rotatably attached to an opening provided in the upper part 34 of the outer ring 26.

Outer ring 26 is rigidly connected to outer ring lower bearing 44 .

The upper ring bearing 46 is rotatably fitted into the lower bearing 44 of the outer ring.

Thus, the ring 22 is rotatable relative to the outer ring 26 via the rotatable attachment of the ring upper bearing 24 and the upper ring bearing 46.

The outer ring 26 is attached to a framework (not shown) which is rigidly connected to the structure, ie the ship in which the compass 10 is placed. This mounting may be gimbal mounting.

Accordingly, each end of the upper portion 34 of the outer ring 26 is provided with bearings 38 and 40, respectively. The bearings 38 and 40 are
is pivoted in a recess (not shown) made in the annular portion of the framework for pivoting about a horizontal axis. The annulus is connected to the rest of the framework by a second pair of pivot connections. The second pair of pivot connections is pivotable about a second horizontal axis that is transverse to the first horizontal axis.

In this manner, the gimbal mounting allows outer ring 26 to pivot about the horizontal axis, but precludes rotation about its vertical axis. The outer ring 26 is pivotable forward and backward and side to side.

The gimbal mounting itself is a known mounting type.

A spur gear 41 is firmly attached to the top bearing 24. A compass card 42 with a conventional scale is fixedly connected to the spur gear 41 through a screw 43.

The spur gear 41 is attached to a bearing 91.

A universal worm drive 72 is provided in the upper portion 34 of the outer ring 26 for driving the spur gear 41 in a manner described below.

The magnet 12 is fastened to the outside of the inner tube 53 through the napht 55 and the bearing sleeve 92. The inner tube 53 is suspended from the main shaft 57, which is connected to the top bearing 24 by a high tensile strength thread 14 that is minimally affected by torsional changes.

An inner tube bearing 59 is provided in the upper portion of the inner tube 53. The main shaft 57 is rotatable within the bearing 57. The other end of the thread 14 is connected to the inner tube 53 near the bottom of the inner tube 53 via a connecting portion 61 .

The first outer tube 63 surrounds the upper part of the inner tube 53.

The outer tube 63 is held in a fixed position around the inner tube 53 by tightening a nut 65 and a side pressure washer 67.

An inner tube lower bearing 69 is provided in the lower portion of the inner tube 53.

The heavy ring upper bearing 46 has an elongated member 48 that is rotatably positioned within the inner tube lower bearing 75 .

The second outer tube 71 surrounds the lower part of the inner tube 53. Outer tube 7
1 is held in place around the inner tube 53 by tightening through a nut 73 and a side pressure washer 75.

The inner tube 53 and the magnet 12 attached to the inner tube 53 are freely suspended from the main shaft 57 by a thread 14.

The compass is further equipped with an orientation device 5 and an orientation device 5.
It has an optical fiber 54 that transmits light to 8.

Orienting device 58 detects the movement of overlay ring 22 relative to magnet 12.

The optical fiber 54 runs from the top bearing 24 to the top ring 24.
It extends along the outer surface of the ring, through the opening of the ring 22, along the inner surface of the ring 22, and up to the upper surface of the upper plate 56 extending from the inner surface of the ring. The light is the electric 'f!' shown in Figure 3. J89
is transmitted to the orientation device 58 from a remote light source 77 powered by a remote light source 77 . The light is transmitted through an optical fiber 60 to a light source 7.
7 to the optical fiber 54.

A gap 62 is created between the optical fibers 54 and 60 and between the bearing 90 and the top bearing 24. This allows the top bearing 24 to rotate through 360 degrees without being obstructed.

Another optical fiber 64 extends from the bottom surface of a lower plate 66 that extends from the inner surface of the overlap ring 22. optical fiber 64
extends along the inner surface of the ring 22 to the lower ring bearing 46 . One optical fiber 68 connects to the outer ring lower bearing 44.
3 to a control device 79 shown in FIG.

A gap 70 exists between the upper ring bearing 46 and the lower outer ring bearing 44 at the end of the optical fibers 64 and 68. This allows the upper ring bearing 46 to rotate substantially 360 degrees without obstruction.

Orienting device 58 includes a temporary 52 connected to magnet 12. A portion of the plate 52 extends into the gap formed between the upper plate 56 and the lower plate 6G extending from the inner surface of the heavy ring 22.

The plate 52 has a central portion 8 that is opaque to all frequencies of light.
1 and adjacent transparent portions 83 and 85, each for different frequencies of light or frequency ranges. Therefore, parts 83 and 85 are considered to be optical filters.

Alternatively, central opaque portion 81 may be opaque only to frequencies that can pass through portions 83 and 85.

The device 10 further includes a swivel worm drive 72 mounted on the outer ring 26. The flexible worm drive device 72 is connected to a pulse motor 87 through a pulse drive system 74 shown in FIG.

Flexible worm drive system? ! f72 rotates the spur gear 41, and therefore the compass card 42 and the heavy ring 22. The ring 22 may include a pair of arms 78 provided with a catch 80, as shown in FIG.

The arm 78 and catch 80 can alternatively be placed on the opposite side of the ring 22 from the position shown in FIG. 1.

Still alternatively, the pair of arms 78 can be placed on mutually opposing portions of the ring 22. As an alternative to the arrangement of arm 7H shown in FIG. 1, arm 78 may be positioned such that stop 80 contacts the upper portion of magnet 12.

Preferably, the stopper 80 is made of neoprene.

A stop 80 is provided for dampening the magnet 12 if necessary.

Next, the method for drying the compass @ 10 of the present invention will be explained using an example in relation to the compass 10 mounted on a seagoing ship.

In use, magnet 12 searches for and orients itself to the magnetic north direction.

Light is then transmitted from light tA 77 through optical fibers 60 and 54 to alignment device 58.

When compass 10 is properly oriented, opaque central portion 81 of plate 52 lies between top plate 56 and bottom plate 66 and between optical fibers 54 and 64.

In this manner, when the orientation device 58 is oriented, the compass card 42 along with the magnet 12 is oriented in the magnetic north direction.

If the ship changes course, the outer ring 26 will move relative to the magnet 12 in a corresponding manner because the outer ring 26 is connected to the ship through the framework and gimbal attachment as described above. This movement will now move to Shigenobu Tamaki 22,
A movement corresponding to the movement of the outer ring 26 is caused. The compass card 42 connected to the upper bearing 24 is
It is thus moved away from the magnetic north direction.

When the heavy ring 22 is interlocked in this way, the magnet 12 (and therefore the temporary 52) is always pointing in the direction of magnetic north and remains essentially stationary, so the light is directed to either the 83 or 85 section of the plate 52 (the ship). (depending on the direction of the change of course).

The light that has passed through the 83 or 85 portion of the plate 52 is connected to the optical fiber 64.
through the optical fiber 68 and exits the compass 10.

Optical fiber 68 leads to control device 79.

The controller 79 is in the form of an optical frequency sensor and a series of photovoltaic cells and analyzes the information coming from the optical fiber 64. The optical frequency sensor may be a prism that directs the light passing through it to a suitably arranged population of photovoltaic cells.
A population of these photovoltaic cells generates a current that depends on the frequency of the light transmitted from the orientation device by optical fibers 64 and 68.

Photovoltaic cells produce current only when light of the appropriate frequency is incident on the appropriate photovoltaic cell. The current generated in this way is used by the pulse motor 87.

The pulse motor 87 may be adapted to rotate the universal worm drive 72 in a direction dependent on the output of the control device 79 .

The worm drive 72 rotates the spur gear 41 in the appropriate direction, thereby rotating the compass card 12 in a corresponding manner so that the compass card 42 is reoriented with the magnet 12.
and rotate Shigenobu ring 22. This makes it a compass! 110 is again properly oriented and the overlapping ring 22 is moved through the overlapping ring upper bearing 24 and the overlapping ring upper bearing 46 so that the end of the optical fiber 54 is again over the opaque control portion 81 of the plate 52. In this position, no light is transmitted into the optical fiber 64 and therefore the controller 79 does not generate any output to operate the pulse motor 87 to rotate the worm drive 72.

In this way, the compass card 42 and the magnet 12 are aligned in one hundred directions in the magnetic north direction.

Although the above embodiments of the invention have been described in relation to the orientation device T15B using sections that are blind to light of different frequencies, other suitable systems may also be used.

As an example of another alternative, a neutral density section could be used in place of the optical frequency concentric section on the plate 52. These parts measure the intensity (or strong vibrations) of light that passes through a specific part.
Minimize and control the impact on frequency. The controller 79 will require appropriate operational modifications when using neutral density sections.

Yet another alternative is to subdivide parts 83 and 85. Each of these subdivisions will be sensitive to a different frequency or frequency range. 83
And the sensitivity of each of the 85 subdivided parts will be changed in steps.

Thus, any means by which a change in the physical properties of the light transmitted through the orientation device 58 due to movement of the ring 22 can be detected can be used with the present invention.

Also, any suitable type of electromagnetic radiation may be used in place of visible light.

Furthermore, any suitable means may be used, for example as an alternative to the above, provided that it allows the detection of the movement of the weight ring relative to the magnet 12 and that information related to such movement can be transferred to the control device. Ultrasound can be used as an orientation device.

Preferably, the signal supplied to the universal worm drive is also transmitted to all steering controls and repeaters on board the ship, using standard international systems to transmit 200 pulses per minute on board. In this way, the ship can maintain its course accurately.

Wrapping each part of the compass 10 using a jacket (not shown),
Only the outside of the jacket and the compass card 42 are visible from the outside.

The heading direction of the ship can be determined by referring to the heading 1 indicator 91. The heading indicator 91 is attached to the outer jacket of the ship, that is, the compass 10. The heading indicator 91 is aligned with the direction of travel of the ship. Since the heading indicator 91 is oriented in this manner, its position relative to the mark on the compass card 42 indicates the direction of travel of the ship. The heading indicator 91 is therefore placed in the appropriate position relative to the compass card 42.

The heading indicator 91 may be the baseline of a compass.

The various parts of the compass IO, namely the outer ring 269 Shigenobu ring and the outer jacket, are made of non-(n) material. A suitable material would be plastic. This would also allow it to be lightweight.

The compass of the invention is particularly suitable as a marine compass.

It can be installed on oceangoing vessels or small recreational vessels.

Modifications and variations that are obvious to the skilled reader are considered to be within the scope of the invention.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the compass of the present invention, Fig. 2 is a sectional view of the compass shown in Fig. 1, and Fig. 3 is a schematic representation of the compass shown in Fig. 1, showing the connection state in the operating environment. show. 10... Compass, 12... Magnet, 14...
・Thread, 21... Nut, 22... Dummy ring, 24... Bearing, 26... Outer ring,
34...upper part, 3rd...bearing, 4
0...Bearing, 41...Spur gear, 42...
Needle card, 43...Screw, 43...
Bearing, 46...Bearing, 52...Plate, 53
...inner tube, 54...optical fiber, 55.
... Nut, 56 ... Top plate, 57 ... Main shaft, 58 ... Orientation device, 59 ... Bearing, 60 ... Optical fiber, 61 ... Connection part, 62 ... Gap , 63... outer tube,
64...optical fiber, 65...nut,
66... Lower plate, 67... Washer, 68
...Optical fiber, 69...Bearing, 70.
... Gap, 71... Outer tube, 72... Worm drive device, 74... Pulse drive system, 75...
Bearing, 77... Light source, 78... Arm, 79
...Brake device, 80...Stopper, 81...
Opaque central part, 83... Transparent part, 85... Transparent part, 87... Pulse motor, 89... Power supply,
90...Bearing, 91...Bearing,
92...Bearing tube. Patent applicant: Raymond John Floyd, etc.
. Agent Patent Attorney Takashi Okuyama 1 Riki (2 idiots) Sim Kami Nishishi 0X

Claims (1)

[Claims] 1. A freely suspended magnet, a compass card connected to a first member, a second member arranged to be connected to a ship, and a compass card connected to a first member; orienting means for detecting movement of one member relative to the magnet, wherein the first member is movable relative to the second member, and the compass card and the first member are movable relative to the magnet. able to exercise,
In a compass in which the compass card is orientable to the magnet, the first member and the compass card move relative to the magnet when changing the course of the ship, and the orienting means is related to such movement. passing the information to analysis means, which in turn signals motor means to operate drive means for moving said compass card and said first member to reorient said compass card with said magnet. A compass characterized by sending. 2. The compass according to claim 1, wherein the first member is rotatable around the magnet. 3. The first member is non-rotatably connected to the upper bearing and the lower bearing, and the upper bearing and the lower bearing are rotatably connected to the second member. Compass described in Section 2. 4. The magnet is freely suspended via a string means having a first end and a second end, the first end being connected to a spindle means connected to the bearing, and the second end being 4. A compass as claimed in claim 3, connected to tube means surrounded by said magnet, said tube means further wrapping said string means. 5. a first portion arranged to allow passage of electromagnetic radiation of a first frequency or intensity range; a second portion arranged to allow passage of electromagnetic radiation of a second frequency or intensity range; 2 parts and a third part which is substantially opaque to at least the first frequency or intensity range and the second frequency or intensity range. Compass as described in Section. 6. a source of electromagnetic radiation transmitting electromagnetic radiation to the directing means having a frequency or intensity range consisting of the first frequency or intensity range and the second frequency or intensity range;
6. A compass as claimed in claim 5, wherein said third portion is substantially opaque to substantially the entire range of frequencies transmitted to said orienting means by said source of electromagnetic radiation. 7. Electromagnetic radiation passing through the first portion or the second step portion of the plate means is transmitted from the directing means to control means for determining the frequency or intensity range of the electromagnetic radiation passing through the plate means. A compass according to claim 5 or 6, characterized in that: 8. When said ship changes its course, said first member pivots in a first direction, thereby allowing electromagnetic radiation to pass through said directing means, which radiation is then analyzed by control means; motor means thereby actuating drive means to rotate said first member in a second direction opposite to the first direction and dependent on the frequency or intensity range of electromagnetic radiation passing through said orientation means; Any of claims 5 to 7, wherein the first member is rotated such that the third opaque portion impedes passage of the electromagnetic radiation through the directing means. The compass described in item 1. 9. A compass card is attached to the first member,
Claim 1, wherein the compass card comprises an indicia that is properly oriented with the magnet when the opaque portion is positioned to prevent the electromagnetic radiation from passing through the orientation means. Compass described in Section 8. 10. Any one of claims 5 to 9, characterized in that the electromagnetic radiation is transmitted to or from the orientation means by an optical fiber.
Compass as described in Section. 11. According to any one of claims 1 to 10, wherein the first member is made of a ring, and the second member is an outer ring surrounding the ring. compass.