JPH09257473A - Method for attaching/removing vertically display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select ON/OFF of attraction and allow reliable attachment/removal extremely easily by changing a rotation angle of a permanent magnet provided on an attaching/removing mechanism by a handle. SOLUTION: A pair of attaching/removing mechanisms 5 incorporating a permanent magnet 20 are provided on a main body. The permanent magnet 20 of each of the mechanisms 5 is rotated by handles 6 rotatably provided at both ends of the body. Rotating the handle 6 changes a position of the permanent magnet 20, so that the body can be attracted to or released from a cage member 1. That is, the permanent magnet 20 exhibiting a flat plane shape having north and south poles at both ends is positioned in a gap 22 of a yoke 21, and when a magnetic flux 23 passes through the cage member 1, attraction is ON. When the magnetic flux 23 does not pass through the member 1, attraction is OFF. Thus it is possible to select attraction or release only with a rotation angle of the permanent magnet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for attaching / detaching a vertical display device, and more particularly to a new improvement for easily attaching / detaching it by magnetic force.

[0002]

2. Description of the Related Art As a conventional attaching / detaching method of this kind, an embedded permanent magnet and a magnetic material are used for attachment / detachment.

[0003]

Since the conventional attaching / detaching method is configured as described above, there are the following problems. In other words, since the attachment was performed by the attraction force of the permanent magnet, it must be pulled with a force greater than the attraction force of the permanent magnet when it is removed, and it is shocked by the attraction force of the permanent magnet when it is attached. .

The present invention has been made to solve the above problems. In particular, the tilted state of a steel frame member is displayed by using a light emitting element, and the verticality display device can be easily displayed by magnetic force. It is an object of the present invention to provide a method of attaching and detaching a vertical display device which is attached and detached.

[0005]

SUMMARY OF THE INVENTION In a method of attaching and detaching a verticality display device according to the present invention, a verticality display device for displaying the verticality of a steel frame member is magnetically attached to and detached from the steel frame member by an attachment / detachment mechanism. In the method of attaching and detaching the degree display device,
The perpendicularity display device is attracted to the steel frame member by the magnetic force of a permanent magnet provided in the attaching / detaching mechanism, and the magnetic force is canceled when the winding provided in the attaching / detaching mechanism is energized.

A vertical degree display device attaching / detaching method according to the present invention is a vertical degree display device attaching / detaching method in which a vertical degree display device for displaying a vertical degree of a steel frame member is magnetically attached / detached to / from the steel frame member by an attaching / detaching mechanism. In the above method, the attachment / detachment is performed by changing the rotation angle of the permanent magnet provided in the attachment / detachment mechanism with a handle.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a method for attaching and detaching a vertical display device according to the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is a steel frame member vertically provided on the base 1A, and the corner portion 1a of the steel frame member 1 has, for example, an L shape (not an L shape) as a whole. A main body 2 forming a corner is formed so as to fit the corner portion 1a, and the main body 2 is provided with a pair of attachment / detachment mechanisms 5 incorporating a permanent magnet 20 shown in FIG. Each of the attachment / detachment mechanisms 5 has a structure in which the permanent magnets 20 are rotated in a known manner by handles 6 rotatably provided at both ends of the main body 2, and the position of the permanent magnets 20 is changed by the rotation of the handles 6 to cause the main body 2 to rotate. Adsorption or non-adsorption of 2 to the steel frame member 1 is achieved. That is, as shown in FIGS. 3 and 4, the flat plate-shaped permanent magnet 20 having N poles and S poles at both ends is positioned in the void 22 of the yoke 21,
In the state of FIG. 3, the magnetic flux 23 passes through the steel frame member 1 and the adsorption is turned on. Further, in FIG. 4, since the magnetic flux 23 does not pass through the steel frame member 1, adsorption is off. The suction force at this time is as expressed by the following equation (1).

[0008]

[Equation 1]

On the surface side of the main body 2, there is provided a light emitting display body 10 comprising an X-direction light emitting body 3 composed of a plurality of light emitting elements 3a to 3n and a Y direction light emitting body 4 composed of a plurality of light emitting elements 4a to 4n. , X-direction and Y-direction tilt states can be displayed by the respective light-emitting bodies 3 and 4. In this case, the X direction indicates the direction of one surface of the steel frame member 1, and the Y direction indicates the direction orthogonal to the X direction. The X-direction light-emitting body 3 and the Y-direction light-emitting body 4 have light-emitting elements 3a to 3n and 4a to 4n arranged in a substantially V-shape so that the right-side tilt and the left-side tilt can be visually identified immediately. . In this case, when only the light emitting elements 3a and 4a emit light, the vertical state 3b-3
When n, 4b to 4n emit light, it shows a state of being inclined to any one. The main body 2, the attachment / detachment mechanism 5, and the light emitting display 10 constitute a verticality display device 30.

A biaxial inclinometer 8 for measuring tilt angles in the X and Y directions is provided in the main body 2, and a biaxial tilt angle signal 8a from the biaxial inclinometer 8 is used by an inclinometer amplifier. It is inputted to the light emission threshold value selection circuit 12 via 9, and the above-mentioned X direction light emitter 3 and Y direction light emitter 4 are connected to this light emission threshold value selection circuit 12, respectively. The DC power from the battery 7 is supplied to the inclinometer amplifier 9 and the light emission threshold value selection circuit 12 through the DC / DC converter 11 respectively.

Next, the operation will be described. First, when the main body 2 is brought into contact with the corner portion 1a of the steel frame member 1 and the handle 6 is rotated in the direction of the arrow, the position of the permanent magnet 20 of the attachment / detachment mechanism 5 changes and the magnetic flux 23 passes through the steel frame member 1. Thus, the main body 2 is attached to the corner 1a of the steel frame member 1 by magnetic force.
When the power is turned on in this state, the biaxial tilt angle signal 8a output from the biaxial inclinometer 8 is amplified by the inclinometer amplifier 9 and selectively distributed by the light emission threshold value selection circuit 12, and the signal is output. The light emitting elements 3a to 3n and 4a to 4 of the respective light emitting bodies 3 and 4 in the X direction and the Y direction depending on the level of 8a.
n emits light. When only the light emitting element 3a or 4a described above emits light, it indicates that the steel frame member 1 is in the vertical state,
When the other light emitting elements 3b to 3n and 4b to 4n emit light, a state in which the X direction and the Y direction are tilted to the left or right is shown, and the tilted state in the X direction and the Y direction is displayed in a light emitting manner. can do. The light emitting elements 3a to 3n and 4a to 4a arranged in series in the right direction or the left direction.
The number of n used is five in the X direction and five in the Y direction.
The visibility can be further improved by increasing the number from the figure. Further, the illustrated light emitting elements 3a to 3n, 4a to
It is also possible to use a light emitting type numerical display without using 4n. Further, the emission color of only the light emitting elements 3a and 4a can be changed from other colors.

Next, FIGS. 5 and 6 show the attaching / detaching mechanism 5 described above.
It shows another form of. That is, FIG. 5 and FIG.
In the above, the yoke 21 provided in the attachment / detachment mechanism 5 is provided with the permanent magnet 20 and the winding wire 26, and the winding wire 26 is connected to the battery 24 via the switch 25.
Therefore, in the state where the switch 25 is turned off, only the magnetic flux 23 of the permanent magnet 20 flows into the steel frame member 1 so that the adsorption is turned on. When the switch 25 is turned on as shown in FIG. 6, a current flows through the winding 26 and the yoke 2
1 has a winding 26 in a direction to cancel the magnetic flux 23 of the permanent magnet 20.
Since the magnetic flux 23a of the permanent magnet 20 flows (the winding direction of the winding wire 26 is specified as such), the attraction force of the magnetic flux 23 of the permanent magnet 20 disappears and the attraction is turned off. In addition, the suction force in FIGS. 5 and 6 is expressed by the following equation (2).

[0013]

[Equation 2]

[0014]

Since the vertical angle display device attaching / detaching method according to the present invention is configured as described above, the following effects can be obtained. That is, the attraction on / off can be selected only by the rotation direction of the permanent magnet, and the reliable attachment / detachment can be performed very easily. Further, since the permanent magnet and the winding are used and the attraction is turned on when the power is turned off and the attraction is turned off when the power is turned on, the power is not consumed during the attraction, and a power-saving type attaching / detaching mechanism can be obtained.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a verticality display device according to the present invention.

FIG. 2 is a block diagram showing a main part of FIG.

FIG. 3 is a configuration diagram showing a suction-on state of the attachment / detachment mechanism.

FIG. 4 is a configuration diagram showing a suction off state of the attachment / detachment mechanism of FIG. 3;

FIG. 5 is a configuration diagram showing a suction ON state of another attachment / detachment mechanism of FIG. 3;

6 is a configuration diagram showing a suction off state of the attachment / detachment mechanism of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steel frame member 5 Attachment / detachment mechanism 6 Handle 20 Permanent magnet 26 Winding 30 Vertical degree display device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kasuke Takaba 1879 Okyu Iida, Nagano Prefecture Tamagawa Seiki Co., Ltd.

Claims (2)

[Claims] 1. A verticality display device in which a verticality display device (30) for displaying the verticality of a steel frame member (1) is magnetically attached to and detached from the steel frame member (1) by an attachment / detachment mechanism (5). In the attaching / detaching method, the perpendicularity display device (30) is attracted to the steel member (1) by the magnetic force of the permanent magnet (20) provided in the attaching / detaching mechanism (5), and the winding provided in the attaching / detaching mechanism (5). A method for attaching and detaching a vertical display device, characterized in that the magnetic force is canceled when the wire (26) is energized. 2. A verticality display device in which a verticality display device (30) for displaying the verticality of a steel frame member (1) is magnetically attached to and detached from the steel frame member (1) by an attachment / detachment mechanism (5). In the attachment / detachment method, the attachment / detachment method of the vertical degree display device is characterized in that the attachment / detachment is performed by changing a rotation angle of a permanent magnet (20) provided in the attachment / detachment mechanism (5) by a handle (6).