JPS6049214A - Inclination detector - Google Patents

Abstract

PURPOSE:To detect inclination with simple, inexpensive constitution by positioning the center of a spherical body which has high magnetic permeability when not slanting and a magnetism detecting means almost on the same axis with the circular section of a magnet. CONSTITUTION:An inclination detector has circular section and is provided with the magnet which is magnetized in the axial direction of the section, the spherical body 2 which is made of nickel or iron having high magnetic permeability and rolls freely, and a reed switch 3 as the magnetism detecting means which operates with lines of magnetic forces from the magnet 1. Then, the position of the spherical body 2 which has high magnetic permeability when not slanting and the magnetism detecting means are arranged almost on the same axis with the circular section of the magnet 1 to detect inclination with the simple, inexpensive constitution without using any special bearing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tilt detector that detects the tilt of a vehicle or the like in all directions.

[Prior art]

Conventionally, a device for detecting inclination in all directions was developed in 1983.
- As shown in Publication No. 8509, there are two orthogonal bearings that are rotatably supported, and a reed switch that is a magnetic detection means is actuated by a magnet with a face on the tip. There are some that allow magnets to hang down. Therefore, bearings are required to have low friction and high dimensional accuracy, which makes them expensive.

[Purpose of the invention]

In order to solve the above-mentioned drawbacks, the present invention has developed a special method by arranging the magnetic detection means so that the center of a sphere having high magnetic permeability is aligned with the center of a sphere having high magnetic permeability without inclination, on almost the same axis as the axial direction of the circular cross section of the magnet. The object of the present invention is to provide a tilt detector that can detect tilt with a simple and inexpensive configuration without using a bearing.

〔Example〕

The present invention will be described below with reference to embodiments shown in the drawings.

1 is a magnet with a circular cross section and magnetized in the axial direction of this cross section, 2 is a movable sphere made of nickel or iron with high magnetic permeability, and 3 is a magnet l whose circular cross section is tilted in the axial direction. 4 is a non-magnetic case with one pole of the magnet 1 and the saw 1 switch 3 fixed at both ends thereof; 5 (L) A non-magnetic protective material that prevents the sphere 2 from falling; 6 is cork with high permeability and a circular cross section, and the surface in contact with the sphere 2 is spherical; Sphere 2
It works to even out the suction power without reaching the same level.

Next, the operation of the above configuration will be explained. FIG. 2 shows a state where there is no inclination, and the lines of magnetic force coming out of the magnet 1 reach the lead switch notch 3 via the sphere 2. As long as the reed switch 3 that detected the magnetic wire is on,
A determination is made that there is no slope. Also, as shown in Figure 3, magnet 1
If there is an inclination along the axis of the circular cross-section of the sphere 2, the sphere 2 will roll to the point where the gravity and the attractive force of the magnet 1 are balanced. Then, the magnetic field lines can no longer reach reed switch 3, and Saw 1!
When switch/chi 3 is turned off, it is determined that there is an inclination.

Note that even if the sphere 2 falls due to a strong impact, it remains on the protective material 5 and is attracted again by the attractive force of the magnet 1 when the slope is no longer present. Further, since the yoke 6 has a spherical transfer surface for the sphere 2, the sphere 2 easily rolls even at a slight inclination, making it possible to detect a high degree of fertility.

In addition, as another embodiment of the present invention, the fourth embodiment. There is one shown in Figure 5. That is, as shown in FIG. 4, the yoke 6 is omitted and the sphere 2 is brought into direct contact with the magnet 1, or as shown in FIG. It is also possible to create a moving space.

If the above-mentioned tilt detector is used, in a stand-and-pull type device that detects the remaining amount of liquid such as fuel in a vehicle, if the liquid level becomes flat due to acceleration/deceleration, turning, running on a slope, tilting, etc. If the signal from the detector is cut off and the remaining amount of the liquid is continued to be displayed, inaccurate display of the remaining amount of liquid can be prevented.

[Structure of the invention]

As described above, according to the present invention, by arranging the magnetic detection means so that the center of the sphere and the magnetic detection means are substantially coaxial with the axial direction of the circular cross section of the magnet in a state with no inclination, the sphere is inserted into the magnetic field. When the magnetic field lines detected by the magnetic detection means are detected, it is determined that there is no inclination, and when the sphere rolls and the magnetic field lines are no longer detected by the magnetic detection means, it is determined that there is an inclination. It is said that tilt can be detected with the configuration (
(There is a certain effect.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing one embodiment of the present invention, and FIG. FIG. 3 is an explanatory diagram of the operation of the embodiment, and FIG. FIG. 5 is a diagram showing another embodiment of the present invention. 1...Magnet, 2...Sphere, 3...Reed switch. Representative Patent Attorney Takashi Okabe Figure 1 Figure 3 Figure 3 Figure 5 Figure 2 Figure 4 67-

Claims (1)

[Claims] It is equipped with a magnet with a circular cross section, a highly permeable sphere located on one pole side of the magnet and capable of being freely moved, and a magnetic detection means installed on the same side as the Ail sphere. In this state, the axial direction of the circular cross section of the magnet, the center of the spherical body, and the axial direction of the porcelain detecting means are approximately aligned on the axis.