JPH04135393U - Magnetic panel display eraser - Google Patents

Abstract

(57) [Summary] [Purpose] To enable smooth movement of an erasing device member to which an erasing magnet is attached in an erasing device for erasing display on a magnetic panel. [Structure] Racks are provided parallel to each other on one side of the magnetic panel and on the frame of the display board relative to the other side. Pinions corresponding to the respective racks are provided on the erasing device member to which the erasing magnet is attached so as to be able to mesh with the respective racks and rotate in synchronization with each other. This erasing device member is disposed within the main body of the display board so as to be movable along the rack.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention erases the display board of a magnetic panel that displays and erases information by the action of a magnetic field. Regarding equipment.

0002

[Conventional technology]

A so-called magnetic panel is made of a plastic fluid liquid with magnetic particles dispersed in it. By applying a magnetic field to an object, it is possible to display characters, drawings, etc. on its surface. Magnetic panel display boards have been known for a long time. The display on the magnetic panel is , erase by operating the erasing magnet on the back of the magnetic panel. Manipulate the erase magnet To create an eraser, you need an eraser member with an eraser magnet attached, and then use it manually or The erasing device consists of an automatic moving means and its system. especially manual As an eraser with a simple structure, the eraser section with an eraser magnet is operated by A guide bar or guide is attached to the frame of the display board along the opposing sides of the magnetic panel. The end of the erasing device member is engaged with the slot, and the knob provided on the erasing device member is pulled out. Guide the eraser member into the guide bar or guide groove by sliding it. There are some structures that are moved by being read.

0003

[Problem that the idea aims to solve]

In an eraser with this structure, the magnetic panel is perpendicular to the moving direction of the eraser member. As the length in the direction increases, the eraser member also increases in length in the same direction. These erasing devices Try to move the eraser member by picking the knob provided on the member and sliding it. Then, the disadvantage of this structure is that the guide bar or guide groove is formed on the member. The friction force caused by contact with the part of the erasing device member engaged with them causes the knob to The farthest end moves slightly behind, and the overall movement of the eraser member The tendency to tilt in the direction of resisting the movement becomes stronger. As a result, the guide bar or guide groove The frictional force between the formed members and the portion of the erasing device member engaged with them increases more. . In addition, the weight of the erasing member itself increases, so for this reason, the erasing member itself increases. Not only does it require more force to move it, but it also makes it easier for the eraser to move smoothly. The drawback was that it was impossible to do so.

0004 The present invention solves this drawback by installing an eraser magnet on the eraser member. Manually move the erasing device member by picking the girder knob and sliding it. In erasing devices, even if the magnetic panel is a relatively large display board, the erasing device section Magnetic panel display board erasing device that allows materials to be moved smoothly with light force. The aim is to provide a

[0005]

[Means to solve the problem]

In order to achieve the above object, the present invention is used as a display board erasing device for a magnetic panel. The side of the frame of the display board relative to one side of the magnetic panel and the other side. For each, one rack or the other rack is installed in parallel, and an eraser with an eraser magnet attached. One pinion having the same pitch as that of the one rack and the front The same pitch as the other rack and the same pitch circle as the one pinion. The other pinion is engaged with one rack and the other rack, respectively, and synchronized with each other. and the erasing device member is rotatable along one rack and the other rack. The structure shall be arranged in a manner that allows for

[0006] In the erasing device for the display board of a wall-mounted magnetic panel, the upper and lower sides of the magnetic panel are one side and the frame of the display board for the other side. or the other rack is installed in parallel to the eraser member to which the eraser magnet is attached, one pinion having the same pitch as that of the one rack, and the other rack; The other pinion has the same pitch as the one pinion and the same pitch circle as the one pinion. The racks can be engaged with one rack and the other, respectively, allowing them to rotate in sync with each other. Further, a guide roller is provided so as to be rotatable by being placed on a guide piece provided on the frame. The eraser member is supported by its own weight by the guide roller, and the eraser member is supported by one rack and the other rack. The structure is movable along the

[0007] In this invention, one rack and the other rack are provided in the frame part of the display board. , the rack can be integrally formed with the frame by injection molding, or it can be formed integrally with the frame by injection molding. It can be provided by forming it separately and fixing it.

[0008] Place one and the other pinion in the eraser member and one and the other pinion in one and the other rack. They are provided so that they can mesh and rotate in sync with each other, but one pinion and the other pinion To enable the pinions to rotate in sync with each other, one pinion and the other pinion must be When one pinion rotates, the pinion is connected through a shaft etc. The other pinion may also be fixed so as to rotate.

[0009] A guide roller that can be placed on a guide piece provided on the frame and rotated is installed in the erasing device member. However, one or more guide rollers are placed between the guide roller and the guide piece. By providing the roller, the eraser member can be moved more smoothly.

0010 Move the eraser parts so that they are always perpendicular to one and the other rack. It is desirable to move the eraser member to the display board first. Sometimes it is necessary to place one rack at right angles to the other. For that , if one rack and the other rack have the same pitch, one rack and the other The two racks may be installed in parallel with the peaks facing each other, or the peaks of one rack may be If the valley and the valley or peak of the other rack are provided in parallel and facing each other, the erasing device member can be exposed. It can be easily placed on the display board as described above. one rack and the other rack. If the racks are different, connect one rack to the other by Make the peaks face each other or the valleys and peaks at one or more places within the range of one rotation of ON. It is preferable to provide them in parallel and facing each other.

[0011] The erasing device member is moved by pinching the knob provided on it and sliding it. Therefore, if the knob is placed close to the pinion, the force to slide the knob will be strong. If the pitch of the pinion and rack is small, and /or if the height of those teeth is low, the meshing of those teeth will be insufficient and the There is a risk that the removal device parts cannot be moved smoothly, so do not place them in a position close to the knob. One or the other rack and pinion has teeth with a large pitch. The one with the highest height is better.

0012

[Effect]

Slide the eraser member with the eraser magnet attached by pinching the knob provided on it. When this happens, both pinions provided on the erasing device members synchronize and release the pinions provided on the display board frame. It engages with both racks and moves while rotating, erasing the display on the magnetic panel. .

[0013] If the display board is wall-mounted, the erasing device member is attached to the guide roller installed on it. Since its own weight is supported by Clear the display on the control panel.

[0014]

【Example】

Embodiments of the invention are explained in the drawings. Showing the same parts and locations in the drawing Objects are given the same number.

[0015] First, the embodiment shown in FIGS. 1 to 5 will be described. Display board 1 is its main body A magnetic panel 4 is mounted within 2 and supported by a support plate 3 made of a non-magnetic material. the The portion 5' of the frame 5 provided on the back side of the main body 2 relative to the upper side of the magnetic panel 4 has a One rack 6, which is slightly longer than the upper side, is integrally provided. Lower side of magnetic panel 4 The part 5" of the frame 5 provided on the back of the main body 2 has a part slightly longer than its lower side. , one rack 6 and the other rack 7 having the same pitch as described above are provided integrally. Ru. One rack 6 and the other rack 7 are parallel to each other, and one rack 6 and the other rack 7 are parallel to each other. The racks 7 are provided with their peaks and valleys facing each other.

[0016] At one end and the other end of the shaft 8, as shown in FIG. pitch so that the valleys or peaks of the rack 6 and the other rack 7 correspond and engage with each other. One pinion 9 with the same pitch and the same pitch circle as the other pinion 9 with the same pitch. Pin 11 and pin 12 are connected to one pinion 9, respectively. and the groove 14 of the other pinion 10.

[0017] On one surface of the erasing device member 15, the storage groove 16 formed in the center in the longitudinal direction is provided with the above-mentioned As shown in FIG. 5, the shaft 8 is connected to one pinion 9 and the other pinion 10. It is rotatably stored. On the other side, there is a display window for the display board 1 in the center in the longitudinal direction. The erasing magnet 20 is attached to the storage groove 18, which is formed slightly longer than the width of the magnet 17, via an elastic material 19. There is.

[0018] The erasing device member 15 is supported by a projection 21 of the frame body 5, and one pinion 9 and the other so that one pinion 10 meshes with one rack 6 and the other rack 7, respectively. In addition, an erasing magnet 20 is arranged inside the main body 2 so as to be in contact with the support plate 3. erase magnetic The stones 20 exert a magnetic force on the magnetic panel 4 from the back side thereof through the support plate 3.

[0019] To erase the display on the magnetic panel 4, press the other pin on the other side of the erasing device member 15. Scrape the eraser member 15 onto the end located above the nion 10 (upper side in FIG. 1). It is installed in the main body 2 parallel to one rack 6 and the other rack 7 for riding. The erasing device is removed by pinching and sliding the knob 23 protruding outward from the girder window hole 22. This can be done by moving the member 15 along one and the other rack.

[0020] FIGS. 6 to 9 show examples of erasing devices, especially for wall-mounted display boards. A magnetic panel 4 is attached within the main body 2' of the device 1' in the same manner as in the previous embodiment. In addition, similar to the above-described embodiment, portions 55', 55 of the frame body 55 provided on the back surface of the main body 2' are provided. ” each includes one rack 6 and the other rack 7, which are the same as in the previous embodiment. are provided in one piece.

[0021] On one side of the erasing device member 15', there is a storage groove 16' formed in the center in the longitudinal direction. , as shown in FIG. Shaft 8 with one pinion 9 and the other pinion 10 identical to the embodiment of One pinion 9 and the other pinion 10 are rotatably housed. on the other hand On the lower side of the pinion 10 (lower side in FIG. 9), the other side of the portion 55'' of the frame 55 is on the lower side of the rack 7 (lower side in Figure 6), protruding inward and parallel to the other rack 7. A rotatable guide roller 25 is provided in contact with a guide piece 24 provided at the same length. . An erasing magnet 20 is attached to the other surface in the same manner as in the previous embodiment.

[0022] The eraser member 15' has one pinion 9 and the other pinion 10 connected to one rack. 6 and the other rack 7, the guide roller 25 is attached to the guide piece. 24 and the erasing magnet 20 is in contact with the support plate 3 inside the main body 2'. It is located in The erasing magnet 20 is attached to the magnetic panel 4 from the back side through the support plate 3. exert force.

[0023] At the lower end of the other surface of the erasing device member 15' (lower side in FIG. 6), there is an erasing device section. parallel to one rack 6 and the other rack 7 for sliding material 15' A knob 23 protruding outward from a window hole 22 provided in the main body 2' is connected to the main body 2'.

[0024] As shown in FIG. 6, the lower end of the main body 2' provided with the window hole 22 has a knob 23 attached to the display plate 1. The thickness of the main body 2' is adjusted so that it does not protrude beyond the display window 17 of ', and the knob protrudes from the window hole 22. It is formed thinner by the length of part 23.

[0025] The display on the magnetic panel 2 can be erased in the same manner as in the previous embodiment.

[0026]

[Effect of the idea]

Since the erasing device of the present invention is constructed as described above, the rack and pinion Due to this action, the erasing device can be moved smoothly with a small amount of force.

[0027] In addition, for wall-mounted display boards, as the display boards become larger, the erasing device becomes larger. Even if the weight of the eraser increases due to Therefore, the weight of the erasing device itself does not slow down the movement of the erasing device, and the movement of the erasing device is not slowed down by the weight of the erasing device itself. With the increase in size, the eraser can be moved smoothly by simply picking and operating the knob with one hand. I can do that.

[Brief explanation of drawings]

FIG. 1 is a partial cross-sectional view of a first embodiment of a display board of a magnetic panel equipped with an erasing device of the present invention.

FIG. 2 is a schematic diagram showing a cross section taken along line ▲1▼-▲1▼ in FIG. 1;

FIG. 3 is a plan view of the display board of the magnetic panel of the first embodiment.

FIG. 4 is a partial plan view of the shaft to which the pinion of the first embodiment is attached.

FIG. 5 is a plan view of the erasing device member of the first embodiment.

FIG. 6 is a partial sectional view of a second embodiment of a wall-mounted magnetic panel display board equipped with the erasing device of the present invention;

7 is a schematic diagram showing a cross section taken along line ▲2▼-▲2▼ in FIG. 6. FIG.

FIG. 8 is a plan view of the display board of the magnetic panel according to the second embodiment.

FIG. 9 is a plan view of an erasing device member according to a second embodiment.

[Explanation of symbols]

1 Main body 1’ body 4 Magnetic panel 5 Frame 6 One rack 7 Other rack 9 One pinion 10 Other pinion 15 Eliminating device parts 15’ eraser parts 20 erase magnet 24 Guide piece 25 Guide roller 55 Frame

Claims (3)

[Scope of utility model registration request] Claim 1: In a display board having a magnetic panel capable of displaying information by the action of a magnetic field, one rack or The other rack is provided in parallel, and the eraser member to which the eraser magnet is attached is provided with one pinion having the same pitch as the pitch of the one rack, and one pinion having the same pitch as the pitch of the other rack and the same pitch as the one pinion. A display of a magnetic panel in which the other pinion, which is a circle, is provided to be able to mesh with one rack and the other rack and rotate in synchronization with each other, and the erasing device member is arranged to be movable along one rack and the other rack. Board erasing device. [Claim 2] In a wall-mounted display board having a magnetic panel capable of displaying information by the action of a magnetic field, each of the upper and lower opposite sides of the magnetic panel and the frame portion of the display board corresponding to the other side , one rack or the other rack is provided in parallel, and an erasing device member to which an erasing magnet is attached is provided with one pinion having the same pitch as the pitch of the one rack, and one pinion having the same pitch as the pitch of the other rack. The other pinion, which has the same pitch circle as the pinion, is provided so as to be able to mesh with one rack and the other rack and rotate in synchronization with each other, and furthermore, a guide roller is placed on a guide piece formed on the frame body so as to be rotatable. An erasing device for a display board of a magnetic panel, the erasing device member having its own weight supported by the guide roller and movably arranged along one and the other racks. 3. The device for erasing a display board of a magnetic panel according to claim 1, wherein one rack and the other rack having the same pitch are provided in parallel with the ridges facing each other or the ridges and the troughs facing each other.