JPH0743748Y2 - Magnetic reversal display element - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a magnetic reversal display device.

(Prior Art) Japanese Patent Application No. Sho 62-173486 (Actual Kaihei 1-7) previously proposed by the applicant.
According to the magnetic reversal display element of 7687), the permanent magnet (5) is replaced by the magnet holder (6) as shown in FIGS.
The magnet holder (6) is supported by the frame body (4) in a state of being inclined by 45 ° via the rotating shaft (10). The display segment, that is, the display body (7) is attached to the support arm (9) integrated with the magnet holder (6), and is rotated by a rotation shaft (10) at an angle of 90 ° to display or not display. Is to be repeated.

The display body (7) is bent so that it can be attached according to the shape of the upper portion of the support arm (9), and (8) is its fixing screw.

The lower end (6 ') of the magnet holder (6) is formed with shoulders (6a) (6b) that are cut off at an angle of 45 °, and one of these contacts the left and right yokes (3). It comes into contact with and serves as a stopper for the display body (7).

The electromagnet is formed by winding a coil (11) around a bobbin (1), and its core (2) is supported by left and right yokes (3) and (3).

From the left and right yokes (3), projecting pieces (3a) (3b) facing the permanent magnet (5) in two steps are respectively provided, and the projecting piece (7) on the lower left side in the display state (7). 3b) is close to the lower end of the permanent magnet (5), and the right upper protrusion (3a)
Is close to the upper end of the permanent magnet (5), and conversely, when the display body (7) is in the non-display state, the upper left protrusion (3a) is close to the upper end of the permanent magnet (5) and Protrusion (3
b) is located close to the lower end of the permanent magnet (5).

Reference numeral (1a) is a protrusion formed on the bobbin (1), which is engaged with the window hole (4a) of the frame body (4), so that the bobbin (1) and the yoke (3) are attached to the frame body (4). It can be attached to or withdrawn.

Then, when the electromagnet is energized so that the left yoke (3) becomes the N pole and the right yoke (3) becomes the S pole, the permanent magnet (5) rotates clockwise, and the display body (7) display state. (See FIG. 8A).

On the contrary, the left yoke (3) is the south pole and the right yoke (3) is
When the electromagnet is energized so as to have the N pole, the permanent magnet (5) is rotated counterclockwise this time, and the display body (7) is in the non-display state (see FIG. 8B).

Therefore, by repeating the above energizing operation, the display body (7) is inverted to display desired numbers, letters, and the like.

(Problems to be solved by the invention) According to this, when the display body (7) is completely inverted, the projecting pieces (3a) (3b) arranged in two steps from the left and right yokes (3).
Since any one of the two is close to the permanent magnet (5) of the display body (7), there is an advantage that the efficiency of the magnetic action between the two is good and the reversing operation is performed quickly and reliably.

However, since the reversing operation of the display body (7) is stopped by bringing the magnet holder (6) and the yoke (3) into contact with each other, the shock vibration at the end of reversing is large, and the coil (11) may be disconnected. May cause problems.

Moreover, since the one with the two upper and lower protruding pieces as described above has a strong magnetic action, the display body (7) can be made large and heavy, but then the shock vibration at the end of reversal becomes even greater. , It becomes easier to cause wire breakage.

Further, there is a problem that the impact noise is considerably large when a plurality of such display elements are arranged and used as a display device.

Further, the reversing operation of the adjacent display bodies interferes with each other and the adjacent display elements cannot be brought into close contact with each other, resulting in poor visibility.

In Japanese Utility Model Publication No. Sho 58-19576, there is one in which the impact sound is absorbed by a cushion when the stopper of the display drum and the deciding piece are in contact with each other.

However, this is one in which the yokes of electromagnets having a single-stage protruding piece are oppositely arranged on both sides of the permanent magnet, and the efficiency of the magnetic force action is poor and the reversing operation cannot be performed quickly and reliably.
The hitting sound at the time of contact between the stopper and the deciding piece is small and the visibility of the adjacent display elements is poor due to the structure of the magnetic pole portion.

(Means for Solving the Problems) Therefore, the present invention solves the above technical problems and absorbs the shock vibration when the display body is reversed, thereby eliminating problems such as coil breakage and magnetic force action. Efficient,
In addition, it is intended to obtain a display element with good visibility that allows adjacent display elements to be in close contact with each other.As a means for that purpose, a display arm reversible at an angle of 90 degrees is used as a support arm. A permanent magnet is provided on a rotating shaft driven via the magnet, and two yokes of electromagnets having upper and lower two-tiered projecting pieces are provided opposite to each other with the permanent magnet interposed therebetween, and a reversible display member is provided with a support arm. The central cross-section is formed into an umbrella shape having a concave arc surface, one of the concave arc surfaces serves as a display surface and the other serves as a non-display surface, and the display bodies of adjacent display elements perform the reversing operation. In order not to get in the way, a cushion material that absorbs shock vibration is attached to the yoke or the frame body that faces the back side of the display surface and the non-display surface of the concave arc surface when the umbrella-shaped display body is inverted. There is.

(Operation) In the magnetic reversal display element of the present invention configured as described above, the permanent magnet is rotated by reversing the direction of the current applied to the electromagnet, and the display and non-display states are repeated. Alternatively, the display type of the display body is switched, and the shock vibration at the time of reversing is absorbed by the cushion.

Further, even if a yoke having a two-stage projecting piece is used to make the magnetic action efficient, the impact noise is greatly reduced.

However, since the display body has a concave arc surface shape, adjacent display elements can be brought into close contact with each other and good visibility can be obtained.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show a magnetic reversal display device according to the present invention.

The display body (7) includes a display surface (7a) to which the fluorescent reflection sheet (12) is attached, and a non-display surface (7b) which is orthogonal to the display surface (7a) and is not attached.

The display surface (7a) and the non-display surface (7b) are concave arc surfaces.

The display body (7) is attached to the support arm (9) which is integral with the magnet holder (6), and is rotated by the rotating shaft (10).
The display surface (7a) and the non-display surface (7b) are alternately displayed by rotating at an angle of degrees, and the display / non-display state is repeated.
The operating principle is the Japanese Patent Application No. Sho 62-17348 described in the section of the prior art.
It is exactly the same as No.6.

Therefore, in the magnetic reversal display device of the present invention constructed as described above, a large number of the magnetic reversal display devices are arranged and the electromagnet coil (1
The permanent magnet (5) is rotated by reversing the direction of the current applied to (1), and the display of the display body (7) is switched between the display surface (7a) and the non-display surface (7b) to obtain the desired value. The numbers and letters are displayed.

Then, at the end of each inversion of the display body (7),
Display surface (7a) and non-display surface (7b) are yokes (3), (3)
The cushions (c) are provided on the yokes (3) and (3) in order to absorb the impact when they abut. As a result, most of the shock generated at that time is absorbed, the coil (11) is not broken due to shock vibration, and noise such as shock noise is hardly generated even when used as a display device.

As the material of the cushion (C), for example, an elastic material such as rubber material or urethane foam can be used.

The cushion (C) has a frame (4) in addition to the rear surface of the yoke (3).
To be installed.

The display surface (7a) and non-display surface (7b) of the display body (7)
However, the concave arc surface has the following advantages.

That is, when a plurality of display elements are arrayed as shown in FIG. 3 and the reversing operation of the display body (7) is performed, the lower edge of the display body (7) forms an arc and protrudes to the outside. When the (7a) and the non-display surface (7b) are concave arc surfaces, the lower edge of each concave arc surface of the display body (7) does not interfere with the movement.

Therefore, the adjacent display elements can be closely attached to each other by that amount, and there is no gap and is clearer than that having the flat display surface (7a) and the non-display surface (7b) as shown in FIG. It is possible to display characters and the like.

It should be noted that it is convenient to attach a reed switch or the like, which is switched on / off in accordance with the reversing operation of the permanent magnet (5), to the frame body (4) because the display / non-display state can be electrically detected, which is convenient. If (7) is attached to and removed from the frame body (4), the display element and the display device can be easily manufactured.

(Effect of the Invention) In the magnetic reversal display element of the present invention, since the two upper and lower projecting pieces extending from the left and right yokes are close to the permanent magnets of the display body at the end of the reversal of the display body, the magnetic force between them is increased. Since the operation efficiency is good, the reversing operation can be performed quickly and reliably, and furthermore, since each display surface of the display body is formed into a concave arc surface,
During the reversing operation, there is an advantage that the display elements are not mutually adjacent, and thus the arrangement interval of the display elements is shortened, thereby improving the visibility of the display.

On the other hand, in this way, the display surface of the display body is formed into a concave arc surface,
Further, by forming the umbrella-shaped body, the back side of the display surface can easily hit the yoke, the frame body, etc. Moreover, as described above, the upper and lower two-tiered projecting pieces are extended to enhance the magnetic force action. There is a concern that the shock vibration at the end of reversal will increase, but in the present invention, in order to absorb the shock vibration at the time of reversal of the display body of the magnetic reversal display element, a cushion is attached to the yoke, frame, etc. I put on,
The above-mentioned concerns can be eliminated, troubles of the display element caused by shock vibration such as coil breakage can be eliminated, and shock noise at the time of reversing the display body can be reduced by the cushion material.

In short, according to the present invention, a display body that can be inverted at an angle of 90 degrees is formed in an umbrella shape with a display surface having a concave arc surface and a non-display surface around the support arm. That the two yokes of the electromagnet having the upper and lower two-tiered projecting pieces are placed opposite to each other with the permanent magnet provided on the rotating shaft interposed therebetween, and the display surface having the concave arc surface of the display body and The non-display surface back surface has a yoke or frame that comes into contact when it is inverted, and a cushioning material that absorbs shock vibrations is attached to the structure. These three structural requirements are related to each other. Thus, the magnetic reversal display element is used to make the reversing operation quick and reliable, the arrangement interval between the display elements is shortened to improve the visibility of the display, and the shock vibration of the reversing operation is absorbed. Traversing of display elements such as coil breaks Removal of the magnetic reversal display device that can reduce impact noise can increase the overall effect of need.

[Brief description of drawings]

1A and 1B are a front view and a left side view, respectively, showing a display state of the magnetic reversal display device of the present invention, and FIGS. 2A and 2B are a front view and a left side view, respectively, of the magnetic reversal display device of the present invention in a non-display state. Fig. 3 is a front view showing a state in which a plurality of display elements of the present invention are arranged, Fig. 4 (a), (b) are front and right side views of a display body having a flat display surface, and Figs. The drawings are a front view, a right side view, a cross-sectional view, FIG. 8A and FIG. 8B of a magnetic reversal display element according to the invention filed by the applicant before the application, and operation diagrams of the display element. (C) …… Cushion (1) …… Bobbin (2) …… Core (3) …… Yoke (3a) (3b) …… Projection piece (4) …… Frame body (5) …… Permanent magnet (6 ) …… Magnet holder (7) …… Display body (7a) …… Display surface (7b) …… Non-display surface (8) …… Fixing screw (9) …… Support arm (10) …… Rotary shaft (11 ) …… Coil (12) …… Fluorescent reflection sheet

Claims (1)

[Scope of utility model registration request] 1. A permanent magnet is provided on a rotary shaft for driving a display body reversible at an angle of 90 degrees through a support arm, and an electromagnet having two upper and lower projecting pieces sandwiching the permanent magnet therebetween. A pair of two yokes are provided in a pair, and a reversible display body is formed in an umbrella shape having a concave arc surface with a cross section centered on the support arm, and one of the concave arc surfaces is used as a display surface while the other is As a non-display surface, the display bodies of adjacent display elements do not interfere with the reversing operation of the display elements, and face the back side of the display surface and the non-display surface of the concave arc surface when the umbrella-shaped display body is reversed. A magnetic reversal display element in which a cushion material that absorbs impact vibration is mounted on a yoke or a frame.