JP7347120B2 - Tablet fall prevention mechanism - Google Patents

Description

The present invention relates to a tablet drop-off prevention mechanism that prevents a tablet from falling off.

Tablets are created symmetrically as a set of two, one for display purposes (attached to on-site wiring display boards or simulated busbars, etc.) and one for equipment such as switchgear (attached to the equipment installation location). This is a ticket used to ensure correct operations. Confirmation work has been carried out using this tablet for some time now.

FIG. 1 is an explanatory diagram showing the appearance of a tablet. In FIG. 1, (a) is a front view, (b) is a rear view, (c) is a left side view, (d) is a right side view, and (e) is a right side view of the tablet 100. , and (f) is a bottom view.

The tablet 100 shown in FIG. 1 is a device tablet. The tablet 100 is made of, for example, an acrylic material that does not change color. One surface 101 of the tablet 100 is, for example, vermilion, and the other surface 102 is, for example, bright green. The shape of the tablet 100 is a rectangular parallelepiped, and its dimensions are such that the length of the short side of the surface 101 is, for example, 25 mm, the length of the long side is, for example, 30 mm, and the thickness is, for example, 6 mm. The characters written on the surfaces 101 and 102 of the tablet 100 are engraved in white. On the surface 101, letters indicating the device, a numerical symbol ("No. 1 HTr"), and the word "closet" are written on the vermilion surface. On the other hand, on the surface 102, letters indicating the device, a numerical symbol ("No. 1 HTr"), and the word "drawer" are written on a green plane.

As can be seen from each of the figures (a) to (f) in FIG. , 112, 113. The insertion holes 111, 112, and 113 have a circular shape and a diameter of, for example, 3.5 mm. The arrangement of the insertion holes 111, 112, and 113 differs depending on each number. In the tablet 100, the insertion holes 111, 112, and 113 are properly arranged so that the tablet 100 cannot be confused with other tablets.

FIG. 2 is an explanatory diagram showing the appearance of a tablet holder for field equipment. 2, (a) is a front view, (b) is a rear view, (c) is a left side view, (d) is a right side view, and (e) of the tablet seat 200 is shown in FIG. ) is a plan view, and (f) is a bottom view.

The tablet seat 200 shown in FIG. 2 is a receiving metal fitting for field equipment on which the tablet 100 for equipment is attached and removed. The tablet seat 200 is made of, for example, chrome-plated brass.

The tablet seat 200 includes a flat plate-shaped substrate 201 and holes (insertion holes 111, 112, 113) for the tablet 100 provided on one surface 201a of the substrate 201 in a direction substantially perpendicular to the surface 201a. It consists of protrusions (pins) 211, 212, and 213 that are inserted into. The dimensions of the substrate 201 are approximately the same as those of the tablet 100, with the short side of the surface 201a having a length of 25 mm, and the long side having a length of 30 mm, for example. The pins 211, 212, 213 have a cylindrical shape, have a diameter of, for example, 3.2 mm, and a length of, for example, 15 mm or more. Therefore, the pins 211, 212, and 213 each having a diameter of 3.2 mm can be penetrated through the insertion holes 111, 112, and 113 (3.5 mm in diameter) of the tablet 100, respectively.

FIG. 3 is an explanatory diagram showing how the tablet is attached to the tablet seat. In FIG. 3, (a) shows a state where the tablet 100 is not attached to the tablet seat 200, and (b) shows a state where the tablet 100 is in the middle of being attached to the tablet seat 200. (c) shows a state in which the tablet 100 is (completely) attached to the tablet seat 200.

As shown in (a), the worker inserts the tablet 100 while checking the positions of the insertion holes 111, 112, and 113 of the tablet 100 and the positions of the pins 211, 212, and 213 of the tablet seat 200. Bring it close to the tip of the tablet seat 200. Then, the tips of the pins 211, 212, and 213 of the tablet seat 200 are inserted into the insertion holes 111, 112, and 113 of the tablet 100. Next, as shown in (b), the worker moves the tablet 100 from the tip side to the substrate 201 side so that the insertion holes 111, 112, 113 are along the longitudinal direction of the pins 211, 212, 213. . Then, as shown in (c), when the tablet 100 comes into contact with the substrate 201, the attachment of the tablet 100 is completed.

When removing the tablet 100, in the state of (c), the worker grasps the tablet 100 and moves the tablet 100 along the longitudinal direction of the pins 211, 212, 213 in the direction of the tips of the pins 211, 212, 213. Move to. This results in the state shown in (b). Furthermore, by moving the tablet 100 toward the tips of the pins 211, 212, and 213, the tablet 100 can be removed from the tablet seat 200, as shown in (a).

In this manner, the worker can check the work status by attaching or detaching the tablet 100 to the tablet seat 200.

As a related technology, specifically, for example, each mounting pedestal (tablet holder) has a plurality of pins arranged so as to fit into the insertion holes provided in the tablet. There is a technology related to a fall prevention structure for a tablet for preventing device misidentification operation, in which the pin has a fall prevention structure in which a protruding portion can freely move in and out (see, for example, Patent Document 1 below).

In addition, as a related technology, specifically, for example, when the tablet is attached to a vertical surface, it is possible to prevent the tablet from falling off from display boards, field equipment, etc. even if there is external vibration. There is a method for preventing device misidentification operation using a tablet, in which magnets are attached to the front and back surfaces, and a magnetic suction fitting is provided at the position where the magnets overlap on the wiring display board and each mounting base of the field device, and technology related to the tablet (for example, the following patent (See Reference 2).

Japanese Patent Application Publication No. 2008-116726 Japanese Patent Application Publication No. 2008-118794

However, since the conventional tablet seat 200 is installed so that the longitudinal direction of the pins 211, 212, and 213 are approximately horizontal, the state shown in FIG. 3(c) may occur due to vibration of the device. The problem is that the tablet 100 attached to the tablet 100 separates from the substrate 201 and becomes the state shown in FIG. There was a point. If the tablet 100 falls off the tablet seat 200 without the worker's knowledge, a serious problem arises in that the worker misperceives the state of the work. Further, the tablet 100 that falls off may fall to a place that cannot be reached, such as at the back of the device, and there is a possibility that a worker cannot easily retrieve it.

Further, in the technique disclosed in Patent Document 1 for preventing such falling off, there is a problem in that the pin must be modified to have a structure that prevents it from falling off, which is time consuming and costly. In addition, the technology according to Patent Document 2 requires modification to attach a magnet to the tablet, and also requires modification to attach a magnet suction fitting to the mounting base. Similarly, there were problems in that it was time-consuming and costly.

The present invention aims to reliably prevent the tablet from falling off without making any improvements to the tablet and the tablet seat in order to solve the problems with the prior art described above.

In order to solve the above-mentioned problems and achieve the object, the tablet drop-off prevention mechanism according to the present invention includes a flat plate-shaped substrate and a tablet provided on one surface of the substrate in a direction substantially perpendicular to the surface. a protrusion to be inserted into a hole; and a support member configured to support a tablet seat and fix the tablet seat to a wall surface of the device, the support member fixing the tablet seat to the wall surface. In this case, the tablet seat is supported such that the longitudinal direction of the protrusion forms a predetermined angle with respect to the horizontal direction, and the tip of the protrusion faces upward.

Further, in the tablet drop-off prevention mechanism according to the invention, in the above invention, the support member has a first surface in contact with a surface of the substrate opposite to a surface on which the protrusion is provided, and a first surface. and a second surface that is in contact with the wall surface and has a predetermined angle.

Further, the tablet drop-off prevention mechanism according to the present invention is characterized in that, in the above invention, the support member is formed of a material that absorbs vibrations.

Further, in the tablet drop-off prevention mechanism according to the invention, in the above invention, the first surface of the support member is configured entirely or partially by a magnet, and the magnetic force of the magnet causes the tablet seat to be It is characterized by being firmly fixed and supported.

Further, in the tablet fall prevention mechanism according to the invention, in the above invention, the second surface of the support member is configured entirely or partially by a magnet, and the support member is held by the magnetic force of the magnet. It is characterized in that it is fixed to the wall surface.

Moreover, the tablet drop-off prevention mechanism according to the present invention is characterized in that, in the above invention, the support member is formed by bending a plate-like member.

Moreover, the tablet drop-off prevention mechanism according to the present invention is characterized in that, in the above invention, the substrate and the support member are integrally formed.

According to the tablet drop-off prevention mechanism according to the present invention, it is possible to reliably prevent the tablet from falling off without making any improvements to the tablet or the tablet seat.

FIG. 2 is an explanatory diagram showing the appearance of a tablet. It is an explanatory view showing the appearance of a tablet seat for field equipment. It is an explanatory view showing how a tablet is attached to a tablet seat. FIG. 2 is an explanatory diagram showing an example of the appearance of a support member according to Embodiment 1 of the present invention. FIG. 2 is an explanatory diagram showing an example of the contents of a tablet drop-off prevention mechanism according to Embodiment 1 of the present invention. FIG. 6 is an explanatory diagram showing another example of the contents of the tablet drop-off prevention mechanism of Embodiment 1 according to the present invention. FIG. 7 is an explanatory diagram showing an example of the appearance of a support member according to Embodiment 2 of the present invention. FIG. 7 is an explanatory diagram showing an example of the contents of a tablet drop-off prevention mechanism according to Embodiment 2 of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a tablet drop-off prevention mechanism according to the present invention will be described in detail below with reference to the accompanying drawings.

(Embodiment 1)
FIG. 4 is an explanatory diagram showing an example of the appearance of the support member according to the first embodiment of the present invention. Further, FIG. 5A is an explanatory diagram showing an example of the contents of the tablet drop-off prevention mechanism of Embodiment 1 according to the present invention. Moreover, FIG. 5B is an explanatory diagram showing another example of the contents of the tablet drop-off prevention mechanism of Embodiment 1 according to the present invention.

4, (a) is a front view, (b) is a rear view, (c) is a left side view, (d) is a right side view, and (e) of the support member 400 in FIG. is a plan view, and (f) is a bottom view.

In FIG. 4 , support member 400 has a first surface 401 and a second surface 402 . As can be seen from FIGS. 4A and 4B, both the first surface 401 and the second surface 402 have a substantially rectangular shape. The first surface 401 is in contact with a surface 201b of the substrate 201 of the tablet seat 200 opposite to the surface 201a on which the protrusions (pins 211 to 213) are provided, as shown in FIG. Therefore, the first surface 401 may have substantially the same shape and dimensions as the surface 201b. Thereby, the tablet seat 200 can be supported more stably. However, the first surface 401 does not have to have substantially the same shape and dimensions as the surface 201b. The second surface 402 may have substantially the same shape and dimensions as the first surface 401. The second surface 402 contacts a wall surface 500 such as equipment, as shown in FIGS. 5A and 5B.

The second surface 402 has a predetermined angle with the first surface 401, as can be seen from FIGS. 4(c) and 4(d). That is, the third surface 403 and the fourth surface 404, which are substantially perpendicular to the first surface 401 and the second surface 402, are located between the first surface 401 and the second surface 402. Both have approximately triangular shapes. Furthermore, as can be seen from FIG. 4(f), the fifth surface 405 has a substantially rectangular shape. Therefore, the support member 400 has the third surface 403 and the fourth surface 404 as the top surface or the bottom surface (that is, the first surface 401, the second surface 402, and the fifth surface 405 as the side surfaces). It has the shape of a triangular prism. Further, the predetermined angle is an angle suitable for preventing the tablet 100 from falling off easily, and specifically, for example, about 10 to 15 degrees. However, the angle is not limited to this. An angle other than this angle may be used.

The support member 400 having such a shape supports the tablet seat 200 shown in FIG. 2 and fixes (fixes) the tablet seat 200 to the wall surface 500 of the device. Then, when the tablet seat 200 is fixed to the wall surface 500, the longitudinal direction of the protrusions (pins 211 to 213) forms a predetermined angle with the horizontal direction, as shown in FIG. The tablet seat 200 can be supported such that the tips of the pins 211 to 213) face upward. 5A and 5B show a right side view of the tablet seat 200 shown in FIG. 2(d) and a right side view of the support member 400 shown in FIG. 4(d).

By attaching it in this manner, when the tablet 100 is attached to the tablet seat 200, the tablet 200 is brought into close contact with the surface 201a of the substrate 201 of the tablet seat 200 due to its own weight, as shown in FIG. 5B. can be retained. Therefore, even if the tablet 100 comes out of close contact with the surface 201a due to vibration or the like, the close contact state can be immediately restored due to the weight of the tablet 100. Thereby, the tablet 100 can be reliably prevented from falling off the tablet seat 200. It has a simpler configuration, is cheaper, and has the advantage that existing tablets and tablet seats can be used as they are. Furthermore, by having the surface of the tablet face upward, visibility during tablet verification is improved.

The support member 400 is made of a metal such as aluminum, or a material such as plastic. The interior of the support member 400 may be hollow. Further, the support member 400 may be formed of a material that absorbs metal vibrations. Specifically, the vibration-absorbing material may be, for example, a material made of an elastic member such as rubber, or a porous material such as sponge.

The first surface 401 of the support member 400 may be configured entirely or partially by a magnet. The tablet seat 200 (surface 201b) may be fixed and supported by the magnetic force of the magnet. By fixing the tablet seat 200 with the magnet, the support member 400 can be easily removed from the tablet seat 200.

The second surface 402 of the support member 400 may be configured entirely or partially by a magnet. The supporting member 400 may be fixed to the wall surface 500 by the magnetic force of the magnet. By fixing the support member 400 to the wall surface 500 using a magnet, the support member 400 can be easily removed from the wall surface 500. Therefore, the mounting position of the tablet seat 200 can be freely set or changed.

The first surface 401 of the support member 400 and the surface 201b of the tablet seat 200 may be fixed (adhered) by a method such as using an adhesive in addition to a magnet. Similarly, the second surface 402 of the support member 400 and the wall surface 500 may be fixed to each other by a method such as using an adhesive or screwing in addition to a magnet.

Further, the substrate 201 of the tablet seat 200 and the support member 400 may be formed integrally. Thereby, there is no need to fix the substrate 201 of the tablet seat 200 and the support member 400, and the tablet seat 200 can be attached to the wall surface 500 more easily.

(Embodiment 2)
FIG. 6 is an explanatory diagram showing an example of the appearance of a support member according to Embodiment 2 of the present invention. Moreover, FIG. 7 is an explanatory diagram showing an example of the contents of the tablet drop-off prevention mechanism according to the second embodiment of the present invention.

6, (a) is a front view, (b) is a rear view, (c) is a left side view, (d) is a right side view, and (e) of the support member 600 in FIG. is a plan view, and (f) is a bottom view.

In FIG. 6, the support member 600 is composed of a first member 601 and a second member 602. The first member 601 and the second member 602 are formed by bending a plate-like member. As described above, the difference between the support member 400 of the first embodiment and the support member 600 of the second embodiment is that the tip of the first member 601 and the tip of the second member 602 are separated from each other. The first member 601 and the second member 602 can each independently move due to the deflection of the support member 600 made of a shaped member, thereby absorbing vibrations from the wall surface 500 more efficiently. The point is that you can.

As can be seen from FIGS. 6A and 6B, both the outer surface 601a of the first member 601 and the outer surface 602a of the second member 602 have a substantially rectangular shape. The outer surface 601a of the first member 601 is in contact with a surface 201b of the substrate 201 of the tablet seat 200 opposite to the surface 201a on which the protrusions (pins 211 to 213) are provided, as shown in FIG. Therefore, the outer surface 601a may have substantially the same shape and dimensions as the surface 201b. Thereby, the tablet seat 200 can be supported more stably. However, the outer surface 601a does not have to have substantially the same shape and dimensions as the surface 201b. The outer surface 602a of the second member 602 may have substantially the same shape and the same dimensions as the outer surface 601a of the first member 601. The outer surface 602a of the second member 602 is in contact with a wall surface 500 such as a device, as shown in FIG.

As can be seen from FIGS. 6C and 6D, the second member 602 is formed by bending a plate-like member at a predetermined angle with the first member 601. The predetermined angle is an angle suitable for preventing the tablet 100 from falling off easily, and is specifically about 10 to 15 degrees, for example. However, the angle is not limited to this. An angle other than this angle may be used. The support member 600 having such a shape supports the tablet seat 200 shown in FIG. 2 and fixes (fixes) the tablet seat 200 to the wall surface 500 of the device. Then, when the tablet seat 200 is fixed to the wall surface 500, as shown in FIG. The tablet seat 200 can be supported such that the tips of the pins 211 to 213) face upward. 7 shows a right side view of the tablet seat 200 shown in FIG. 2(d) and a right side view of the support member 600 shown in FIG. 6(d).

By attaching it in this manner, when the tablet 100 is attached to the tablet seat 200, the tablet 100 is moved against the substrate 201 of the tablet seat 200 due to its own weight, similar to the first embodiment shown in FIG. 5B. It is possible to maintain a state in close contact with the surface 201a. Therefore, even if the tablet 100 comes out of close contact with the surface 201a due to vibration or the like, the close contact state can be immediately restored due to the weight of the tablet 100. Thereby, as in the first embodiment, it is possible to reliably prevent the tablet 100 from falling off the tablet seat 200.

The support member 600 is made of a metal such as aluminum, or a material such as plastic. The support member 600 is desirably made of a material that can be bent by a predetermined force, for example. Furthermore, the support member 600 may be made of a material that absorbs metal vibrations. Specifically, the vibration absorbing material may be, for example, a material made of an elastic member such as hard rubber.

All or part of the outer surface 601a of the first member 601 of the support member 600 may be constituted by a magnet. The tablet seat 200 (surface 201b) may be fixed and supported by the magnetic force of the magnet. By fixing the tablet seat 200 with the magnet, the support member 600 can be easily removed from the tablet seat 200.

All or part of the outer surface 602a of the second member 602 of the support member 600 may be constituted by a magnet. The supporting member 600 may be fixed to the wall surface 500 by the magnetic force of the magnet. By fixing the support member 600 to the wall surface 500 using a magnet, the support member 600 can be easily removed from the wall surface 500. Therefore, the mounting position of the tablet seat 200 can be freely set or changed.

The outer surface 601a of the first member 601 of the support member 600 and the surface 201b of the tablet seat 200 may be fixed (adhered) by a method such as using an adhesive in addition to a magnet. Similarly, the outer surface 602a of the second member 602 of the support member 600 and the wall surface 500 may be fixed to each other by a method such as using an adhesive or screwing in addition to a magnet.

Further, the substrate 201 of the tablet seat 200 and the support member 600 may be formed integrally. This eliminates the need for fixing the substrate 201 of the tablet seat 200 and the support member 600, and the tablet seat 200 can be more easily attached to the wall surface 500.

As explained above, the tablet drop-off prevention mechanism of the embodiment of the present invention includes a flat plate-shaped substrate 201, and a device provided on one surface 201a of the substrate 201 in a direction substantially perpendicular to the surface 201a. Protrusions 211 to 213 to be inserted into the holes 111 to 113 of the tablet, and support members 400 and 600 for supporting the tablet seat 200 and fixing the tablet seat 200 to the wall surface 500 of the device. In the members 400 and 600, when the tablet seat 200 is fixed to the wall surface 500, the longitudinal direction of the projections 211 to 213 forms a predetermined angle with respect to the horizontal direction, and the tips of the projections 211 to 213 point upward. Since the tablet holder 200 is supported so that the tablet holder 200 faces upward, the tablet 100 once attached can be reliably prevented from falling off the tablet holder 200. Further, in order to prevent the tablet 100 from falling off, it is not necessary to make any improvements to the tablet 100 or the tablet seat 200. Furthermore, when the tablet 100 is attached to the tablet seat 200, the display surface on which the characters and the like of the tablet 100 are written faces upward, making the display surface easier to see. Further, since no processing is performed on the projections 211 to 213, the tablet 100 can be easily removed from the tablet seat 200.

Further, in the tablet fall prevention mechanism according to the embodiment of the present invention, the support members 400, 600 have a first surface 401 in contact with a surface 201b of the substrate 201 opposite to the surface 201a on which the protrusions 211 to 213 are provided. , 601a, and a second surface 402, 602a that is in contact with the wall surface 500 and has a predetermined angle with the first surface 401, 601a. When this happens, it is possible to ensure that the tips of the protrusions 211 to 213 face upward.

Further, in the tablet drop-off prevention mechanism according to the embodiment of the present invention, the support members 400 and 600 are formed of a material that absorbs vibrations, so that vibrations transmitted from the wall surface 500 of the device can be more efficiently absorbed. I can do it.

Further, in the tablet drop-off prevention mechanism according to the embodiment of the present invention, the first surfaces 401, 601a of the support members 400, 600 are configured entirely or partially by a magnet, and Since the tablet seat 200 is fixed and supported by magnetic force, the support members 400 and 600 can be easily fixed and supported on the tablet seat 200.

Further, in the tablet drop-off prevention mechanism according to the embodiment of the present invention, the second surfaces 402, 602a of the support members 400, 600 are configured entirely or partially by magnets, and Since the supporting members 400, 600 are fixed to the wall surface 500 by magnetic force, the supporting members 400, 600 can be easily fixed to the wall surface 500, and the installation position of the tablet seat 200 can be easily changed. .

Further, in the tablet drop-off prevention mechanism of the embodiment of the present invention, the support member 600 is formed by bending a plate-like member, so the support member 600 can be easily manufactured. Furthermore, vibrations transmitted from the wall surface 500 of the device can be absorbed more efficiently.

Further, in the tablet drop-off prevention mechanism according to the embodiment of the present invention, since the substrate 201 of the tablet seat 200 and the support members 400, 600 are integrally formed, the tablet seat 200 and the support members 400, 600 are formed integrally. The fixing process can be omitted, and the tablet seat 200 can be more easily attached to the wall surface 500. Moreover, this allows the number of parts to be reduced.

As described above, the tablet fall prevention mechanism according to the present invention is useful as a tablet fall prevention mechanism that prevents a tablet for equipment such as a switchgear from falling off a tablet seat. Suitable for preventing tablets from falling off without any modification.

100 Tablet 200 Tablet holder 201 Board 211, 212, 213 Pin (protrusion)
400, 600 Supporting member 500 Wall (of equipment)

Claims (7)

The above-mentioned rectangular flat tablet is made symmetrically as a set of two tablets, one for display and one for equipment to be removably attached to the installation location of the equipment, and used as a tag to ensure manual operation on site without errors. A tablet fall prevention mechanism that prevents a device from falling off from an installation location,
Supporting a tablet seat consisting of a flat plate-shaped substrate and a cylindrical protrusion provided on one surface of the substrate in a direction substantially perpendicular to the surface and inserted into a circular hole of the tablet. and a support member for fixing the tablet seat to the wall of the device,
The support member is configured such that when the tablet seat is fixed to the wall surface, the longitudinal direction of the protrusion forms a predetermined angle with respect to the horizontal direction, and the tip of the protrusion faces upward. A tablet fall prevention mechanism characterized by supporting a tablet seat. The support member is
a first surface in contact with a surface of the substrate opposite to the surface on which the protrusion is provided;
a second surface that is in contact with the wall surface and has a predetermined angle with the first surface;
The tablet falling-off prevention mechanism according to claim 1, characterized in that it consists of the following. 3. The first surface of the support member is configured entirely or partially by a magnet, and the tablet seat is fixed and supported by the magnetic force of the magnet . Mechanism to prevent tablets from falling off. 4. The second surface of the support member is configured entirely or partially by a magnet, and the support member is fixed to the wall surface by the magnetic force of the magnet. Mechanism to prevent the tablet from falling off as described. The tablet fall prevention mechanism according to any one of claims 1 to 4, wherein the support member is made of a material that absorbs vibrations. The tablet fall prevention mechanism according to any one of claims 1 to 5, wherein the support member is formed by bending a plate-like member. The tablet drop-off prevention mechanism according to any one of claims 1 to 6, wherein the substrate and the support member are integrally formed.

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