JPH0754807Y2 - ▲ Magnet ▼ Gala Needle - Google Patents

Description

[Detailed description of the device] (Industrial application field) A spherical levitating body equipped with stones is levitated by contacting the vessel body in a stable state by the rectified air flow that is sent in parallel with the inner cylinder of the vessel body in an upward direction and levitating it. Used at sea or on land, which is characterized by being able to follow qi Concerning Gora Needle.

(Conventional technology) The structure of Gora compass is divided into two types, a dry compass and a liquid compass, due to its structure. Dry compass Since the vibration absorbing structure of the needle is imperfect, the followability is poor, and it is rarely used, and the liquid compass is widely used. FIG. 3 shows the main part of a conventional liquid spherical compass.

Reference numeral 28 denotes a spherical card having a pivot 23 and a float 27, to which a plate having a magnet 25 and a through hole 26 is adhered. Pivot 2
3. The spherical card 28 is supported by the bearing base 29 by the bearing 24, and the hood 31 is filled with the liquid by the rubber stopper 30 and sealed. The spherical card 28 is always grounded by the magnet 25. Indicate the direction of mind.

(Problems to be Solved by the Invention) However, the conventional liquid spherical compass has the following problems.

1. When the bow is greatly rotated, the liquid in the body causes an accompanying motion, and the float 27 and the spherical card 28 rotate together with the liquid, so that the direction of the new bow cannot be immediately indicated.

2. When used for a long time, the spherical card 28 becomes discolored with liquid.

3. In extremely cold regions, liquids may freeze.

4. In tropical regions, the liquid may swell and break the glass hood 31, or the liquid may rot.

5. Air bubbles tend to be generated due to temperature rise.

6. Manufacturing cost is required because it is liquid-tight.

(Means for Solving the Problems) The present invention solves the above problems and has a simple structure and a ground structure. Excellent followability to the air, lightweight and inexpensive The purpose is to provide a spiritual needle. That is, the purpose of the present invention is A levitation body equipped with stones is levitated in a non-contact state with the body by the air flow sent upward in the inner cylinder of the body,
Levitating body Ground by stones A new feature characterized by being able to follow the mind freely It is in the provision of Gora Needle.

In addition, the object of the present invention is to eliminate the incomplete vibration absorption of the dry type frame by levitating it with an air flow, as compared with the conventional dry compass, and to replace the liquid with an air flow, as compared with the conventional liquid compass, so that the liquid structure can be improved. Is characterized by outstanding followability, simple structure, light weight, and low cost compared to the past. It is in the provision of Gora Needle.

Another object of the present invention is to adjust the center of gravity of the float to the bottom center of the levitator so that the center of gravity of the float becomes lower near the bottom center when levitated. The feature is that the stone is provided as a balance weight and the levitating body is erected in an upright state. It is in the provision of Gora Needle.

Further, an object of the present invention is to provide an electric fan below the inner cylinder of the body as an air flow source for levitation, and to install a rectifier inside the inner cylinder to rectify an upward parallel flow. It is in the provision of Gora Needle.

Further, the object of the present invention is to make it possible to measure the directional scale displayed on the outer peripheral surface of the spherical levitating body with a baseline pillar. It is in the provision of Gora Needle. These objects of the present invention will be clearly understood by the following description of the embodiments in conjunction with the accompanying drawings.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings. The same numerals in FIGS. 1 and 2 represent the same objects and the same rails. In FIGS. 1 and 2, reference numeral 1 denotes a sphere float of a light material (for example, foamed polyethylene), which is preferably a hollow body. In the bottom center 19 of the ball bottom 22 of the levitation body 1, its center of gravity should be close to the bottom center 19, A stone 2 is provided, and a direction scale is displayed on the outer peripheral surface 21 of the spherical surface. Reference numeral 18 denotes a cylindrical container body having a tapered lower portion, which is composed of an outer tapered outer cylinder 8 and a bottom plate 17 having a hole 20 in the center. Reference numeral 9 is a hemispherical colorless and transparent hood that is detachably attached to the outer cylinder 8. The levitation body 1 can be easily seen through from the outside. 10 is a plurality of exhaust holes formed in the hood 9. Four columns 7 are erected on the bottom plate 17, and the columns 7
The inner cylinder 3 is installed on the top of the container so as to be located at the center of the body 18. A pair of base line columns 11 are provided so as to protrude from the upper end of the inner cylinder 3. The base line pillar 11 is for measuring the directional scale displayed on the outer peripheral surface 21 of the spherical levitation body 1. The inner tube 3 includes the levitation body 1
Has a large inner diameter so that it can float freely.
An electric fan 5 is placed on the hole 20 and sends an airflow upward in the inner cylinder 3. In addition, the inner cylinder 3 has 45 vertical plates.
A rectifier 4 that is radially partitioned for each degree is installed inside, and rectifies the air flow generated by the electric fan 5 into a parallel flow to levitate the ball levitation body 1 in the inner cylinder 3.

The levitation body 1 has a bottom center 19 in the inner cylinder 3. With the stone 2 right underneath, it floats stably and Ground by stone 2 It responds to the qi by turning and following it. Since the rectifier 4 is for rectifying a parallel flow, for example, a structure may be adopted in which thin tubes are bundled and vertically inserted into the inner cylinder 3. The body 18 is held by a well-known gimbal frame and always maintains an upright posture. The structure of the gimbal frame is shown in FIG. 1 and FIG. 2, but the outer cylinder 8 of the body 18 is located at the upper and lower two places, and has an annular gimbal ring 12, a spacer 14, a pin 15, and a split pin 16. It is rotatably connected to the left and right via the. Also gimbal ring 12
Is a gimbal plate with two plates standing on the left and right 13
And at two places on the right and left sides, the pin 15 and the split pin 16 are rotatably connected to the front and rear. The gimbal plate 13 is fixed to a boat pedestal or the like. The electric fan 5 provided in the lower center of the body 18 acts as a balance weight, and the body 18 always maintains an upright posture by the gimbal frame that rotates left and right and forward and backward in response to the sway of the stool. .

Also, according to the present invention The constituent element of Gora Needle is the ground Be careful not to generate an error in the follow-up instruction to the air, such as with synthetic resin or aluminum. Composed of natural material.

(Effect of the device) Since the structure is as described above, when the fan is turned as shown in Fig. 1 and air is sent as shown by the broken line, the levitation body floats, and the closer the air is to the spherical surface, the faster the air flow and the atmospheric pressure. Because it will be lower
Stable levitating in the center of the cylinder, and the gimbal frame allows the body to always maintain an upright posture, which facilitates orientation measurement.
According to the present invention Gora Needle has excellent followability, is easy to operate, has a simple structure, is lightweight, and is inexpensive.

[Brief description of drawings]

Fig. 1 shows the present invention Front sectional view of Gora Needle, Fig. 2 is of Fig. 1 Fig. 3 is a plan view of the conventional liquid with the hood of the entrapment needle removed. It is a front cross-sectional view of Gora Needle. 1 ... Sphere levitator, 2 ... Stone, 3 ... Inner cylinder, 4 ... Rectifier, 5 ... Electric fan, 6 ... Power plug, 7 ... Support, 8
…… Outer cylinder 9 …… Hood, 10 …… Exhaust hole, 11 …… Base line pillar, 12 …… Gimbal ring 13 …… Gimbal plate, 14 …… Spacer, 15 …… Pin, 16 …… Split pin 17 …… Bottom plate, 18 ... Body, 19 ... Bottom center, 20 ... Hole 21 ... Outer peripheral surface, 22 ... Ball bottom, 23 ... Pivot, 24 ... Bearing 25 ... Magnet, 26 ... Circulation hole, 27 …… Float, 28 ……
Spherical card 29 …… Bearing stand, 30 …… Rubber stopper, 31 …… Hood, 32 …… Mounting stand

Claims (2)

[Scope of utility model registration request] 1. A body is held substantially horizontally by a gimbal frame. In the Gora Needle, a levitation body is levitated at the center of the inner tube of the body, and the center of gravity of the levitation body is lowered close to the center of the sphere of the levitation body Equipped with stones, the azimuth scale is displayed on the spherical surface of the levitating body, a pair of baseline pillars is installed at the upper end of the inner cylinder of the body, and the electric fan at the bottom of the inner cylinder described above makes a parallel flow upward with a rectifier. Send the rectified air flow to float the ball levitation body to the vessel without contact and in a stable state, Characterized by being able to follow the direction of the air freely Gora Needle. 2. A structure in which an electric fan is provided below the inner cylinder of the body as an air flow source for levitation, and a rectifier is provided in the inner cylinder to rectify the turbulent airflow generated from the electric fan into an upward parallel airflow. The method according to claim 1, characterized in that Gora Needle.