JPH0429011A - Compass - Google Patents

Abstract

PURPOSE:To stably rotate a magnet by forming the magnet of ferromagnetic bodies in a loop shape so that the magnet contains air and has a surface curved in the loop shape and a transparent annular container has a curved surface. CONSTITUTION:The magnet 2 consists of plastic 6, two magnetized ferromagnetic bodies 5 fitted at the upper part inside it, and the enclosed air 9, and is made nearly in specific gravity to compass liquid 3. The bottom surfaces of the magnet 2 and container 1 are curved upward and downward so as to comply with the expansion and shrinkage of the air 9 and compass liquid 3 with temperature. The container 1 consists of plastic 10, aluminum 11, and air 12 charged between them. Annular projections 6a and 10a are provided at parts of the plastic materials 6 and 10 in order to stably rotate the magnet 2. Consequently, the magnet can stably be rotated and the expansion and shrinkage of the air and liquid with temperature can be complied with.

Description

[Detailed description of the invention] [Industrial application fields] The present invention relates to a compass (V side).

[Technology at the end of U] Takera's compass had a structure in which the fulcrum support was a diamond-shaped magnetized ferromagnetic material placed on the fulcrum, or it was combined with a magnetized ferromagnetic material. The disc was used as a direction indicator, and a liquid was used to prevent vibrations. For this reason, since the center part is the main part of the compass, it is difficult to use the center part of the compass for other devices, such as by attaching it to a wristwatch. .

[Problems to be Solved by the Invention] The invention as set forth in claim 1 is intended to solve the inconvenience that the center portion is blurry when the compass is used in combination with other equipment such as a wristwatch.

Further, the invention as claimed in claim 2 enables the loop-shaped magnet to rotate smoothly and stably in the container of the machine as claimed in claim 1, and also allows the magnet and container to cope with the expansion and contraction of gas and liquid due to temperature changes. It is an attempt to do so.

[F-stage for solving the problem] The invention according to claim 1 provides a magnet in the form of a loop (ring or annular ring) formed by a single or a plurality of magnetized ferromagnetic materials, or a shape in which a part of the loop is deformed. Alternatively, a magnet formed by combining a single or multiple magnetized ferromagnetic materials and another substance into a loop shape or a partially deformed loop shape can be used as a partially or completely transparent circular ring ( A compass that is configured to be sealed together with liquid in a donut-shaped container or a container shaped like a partially deformed ring, making the center part of the compass a space that can be used for other devices such as a wristwatch. It is. Further, the invention according to claim 2 provides a magnet having a loop shape or a shape in which a part of the loop is deformed, formed by a single or a plurality of magnetized ferromagnetic materials, or
- Or a magnet in which a plurality of magnetized ferromagnetic materials and other substances are combined to form a loop j[d] or a part of the loop is changed to IFg. A container that has one or more inwardly or outwardly curved blood in one or more parts of the container, and is partially or completely transparent and has a partially deformed ring. In the compass according to claim 1, the loop-shaped magnet is smoothly stabilized by the container having one or two or more inwardly or outwardly curved surfaces at a portion or a plurality of locations of the container. The idea is to allow the magnet and container to rotate by rotating the magnet, and to allow the magnet and container to respond to the expansion and contraction of gas and liquid due to temperature changes.

[Function] In the compass according to claim 1, since the central part has a katana space, it is convenient to use in combination with other 151 devices, and in the compass according to claim 2, the compass has a loop shape. By filling the inside of the magnet with a gas such as air to give it a specific gravity that is approximately the same as that of the liquid, it can rotate smoothly in the liquid, and the magnet and container have surfaces that curve inward or outward. This prevents the magnet and container from expanding and contracting ζ due to temperature changes and causing an excessive pressure force.
1. Attach the console B of the machine in claim 1 around the dial plate 4
By doing so, it functions as a portable compass that is integrated with the wristwatch without hiding the dial.

[Example] An example of the compass according to claim 2 will be described in detail below. FIG. 1 is a plan view of the embodiment, and FIG. 2 is an elevational view thereof (FIGS. 1 and 2 are also views of the embodiment of the compass according to claim 1). In Figure 1, 4 is h
Indicates the position where characters or a cursor representing the position are displayed on the plastic 6.

FIG. 3 is a cross-sectional view of the embodiment taken along the line A-A in FIG. This is to show the closed configuration in detail. The magnet 2 consists of a plastic 6, two pieces of magnetized ferromagnetic material 5 attached to the inner part 1 under control as shown in FIG. 4 (plan view), and a sealed air '49. This is almost the same as compass fluid 3. In Figure 4, 1 is selected, 7 represents the north pole, and 8 represents the south pole. The reason why the magnet 2 and the bottom of the container 1 are curved downward in FIG. 3 is to allow the air 9 and the compass liquid 3 to expand and contract due to changes in odor. be. The container 1 is made of plastic 10, aluminum 11, and air 12 sealed between them, and the bottom surface of the aluminum 11 is also curved downward. The reason why the annular projections 6a and lOa are attached to parts of the plastics 6 and 10 is to rotate the magnet 2 stably. 1
0b is an injection hole for compass liquid, and an air vent hole is provided on the opposite side. Inject the liquid with the compass held almost vertically to remove air.

As another embodiment, (1) Instead of curving the aluminum 11 into an earthwork, holes may be formed in the side or bottom surface of the aluminum 11 to allow the air 12 to enter and exit.

C) The L part of the plastic 6.10 may be made of a stronger transparent material such as reinforced glass.

(3) Other paramagnetic metal may be used to straddle the aluminum 11.

(4) 4 in FIG. 1 represents the position of the character or notation 1;- attached to the plastic 6 indicating the orientation, but a scale may also be attached to the entire body.

FIG. 5 is a view showing an embodiment of the wristwatch according to claim 3, in which the compass according to claim 1 is attached to the wrist of the wristwatch and around the dial. In the figure, 14 is a rotating ring attached to the outside of the compass, which can be moved by a knife. The ring has letters or symbols indicating the direction and a scale, and is used to correct the geomagnetic declination and determine true north.

[Effects of the Invention] According to the invention described in claim 1, the compass can be attached to a wristwatch without hiding the dial, and its loop shape with a space in the center makes it more fashionable than conventional compasses, making it suitable for use in water bottles and notebooks. It has the effect of expanding the uses of the compass, such as being able to be attached to other objects and used as an accessory. Further, according to the invention as set forth in claim 2, the magnet can rotate stably and smoothly, and the expansion and contraction of gas and liquid due to temperature changes can be coped with, so there is an effect that the range of withstand temperatures is expanded. According to the wristwatch according to claim 3, it is possible to easily carry a compass along with the watch, and the wristwatch has the added value of 4t in response to the demands of modern society, where opportunities to spend time in nature are increasing.

[Brief explanation of the drawing]

FIG. 1 is a bottom view of an embodiment of the compass according to claim 2;
FIG. 2 is its q-plane view. FIG. 3 is a sectional view of an embodiment of the compass according to claim 2, taken along the line A--A in FIG. FIG. 4 is a plan view of the magnet of the embodiment to show the arrangement of the magnetized ferromagnetic material. FIG. 5 is a diagram showing an embodiment of the wrist watch according to claim 3. 1X Explanation of symbols for essential parts 1...Container 2, which is a component of the compass...Magnet 3, which is a component of the compass...Liquid in the container 1 (compass liquid) 5...The magnet 2 Magnetized ferromagnetic material 6 which is a component...Plastic lO which is a component of the magnet 2...Plastic 11 which is a component of the container 1.
... Aluminum 13 which is a component of the container 1 ... A compass 14 according to claim 1 ... A rotary ring with a 6th position and a scale

Claims (1)

[Claims] 1) A magnet in the form of a loop (ring or ring) formed by a single or multiple magnetized ferromagnetic material, or a magnet in the form of a partially deformed loop, or a single or multiple magnetized A magnet made by combining a ferromagnetic material and another substance into a loop shape or a partially deformed loop shape,
A partially or completely transparent ring (doughnut-shaped; torus)
A compass that is constructed by sealing a container with a liquid in a shaped container or a container shaped like a partially deformed ring. 2) A magnet in the form of a loop (ring or ring) formed by a single or multiple magnetized ferromagnetic materials or a partially deformed form of a loop, or a single or multiple magnetized ferromagnetic material A magnet in the form of a loop or a partially deformed loop formed by combining the body and another substance,
A ring (doughnut-shaped; torus) that contains gas inside the magnet, has one or more inwardly or outwardly curved surfaces at a portion or multiple locations of the loop, and is partially or entirely transparent. 2. The container according to claim 1, wherein the container has one or more inwardly or outwardly curved surfaces at a portion or a plurality of locations of the container. compass. 3) A wristwatch equipped with the compass according to claim 1.