JP6813340B2 - Railroad equipment box - Google Patents

Description

The present invention relates to a railroad equipment box, and more particularly to a technique for constructing a rising portion of a cable.

Along the railway lines, for railways that house electrical equipment such as electromagnetic relays and power supplies that make up sequence circuits that generate and branch signals that control electrical devices such as railroad crossings, traffic lights and electric turning machines. The equipment box is installed a little higher than the ground.
Then, a plurality of cables for transmitting control signals and supplying electric power from the interlocking device or the like arranged in the equipment room or the like in the station yard to the railway equipment box are provided on the side of the track, such as a trough. It is laid using the above, and the cable rises from the trough etc. to the railroad equipment box and is configured to be connected to the internal electrical equipment.

By the way, the type and number of electric devices housed inside and the number of cables connected to the electric devices differ depending on the installation location, usage conditions, applications, etc. of the equipment boxes along the railway line.
In addition, in the conventional railway equipment box, in order to prevent small animals such as mice and insects from entering the inside through the cable, a wooden board that can be processed such as drilling is laid on the bottom and formed on the board. It is configured to pull the cable inward through the hole.
Therefore, the cable insertion holes formed in the wooden plate forming the bottom wall of the railroad equipment box are generally different for each equipment box.

Japanese Unexamined Patent Publication No. 2011-88559 Japanese Unexamined Patent Publication No. 2005-53436

Conventionally, the drilling process for the wooden board constituting the bottom wall of the railroad equipment box has often been performed at the site where the equipment box is installed. In addition, the number of cables may change when repairing or replacing electrical equipment in the equipment box. In that case, increase the size of the hole or putty in the gap where there is a margin. Work such as coating was carried out.
However, since it takes time to perform a drilling process on a wooden bottom plate, the bottom plate may be left as it is removed, and in that case, there is a problem that rat prevention cannot be performed.

Examples of inventions relating to railway equipment boxes include those described in Patent Documents 1 and 2. However, the inventions described in Patent Documents 1 and 2 all relate to the configuration of the door of the instrument box, and do not describe the problem concerning the bottom plate of the instrument box as in the invention of the present application.
The present invention has been made by paying attention to the above-mentioned problems, and an object of the present invention is to easily cope with a change in the number of cables and to prevent the rat-proof function from being impaired. Is to provide a railroad equipment box that can be used.
Another object of the present invention is to provide a railroad equipment box capable of responding to a change in the number of cables without causing a significant cost increase.

In order to achieve the above object, the present invention
A housing having a horizontally long opening formed in a part of the bottom wall, a support member installed in the housing for supporting an electric device, and a partition plate capable of closing the opening are provided. In the railroad equipment box
An engaging piece is formed on the edge of one of the long sides of the opening so as to project upward.
The partition plate is divided into a plurality of pieces along the longitudinal direction of the opening, and the depth of the portion corresponding to the engaging piece on the lower surface of each piece is the height of the engaging piece. It is configured so that the engaging piece is provided with a notch groove formed so as to be engageable by being set larger than the size.

According to the railway equipment box configured as described above, the partition plate for closing the opening formed in the bottom wall of the housing is divided into a plurality of pieces along the longitudinal direction of the opening. Therefore, by removing one of the pieces, a hole through which the cable can be inserted can be easily generated, and even if the number of cables is changed, it can be easily dealt with.
Further, since the cut groove whose depth is set to be larger than the height of the engaging piece is formed in the portion corresponding to the engaging piece formed on the edge of the opening on the lower surface of each piece. When the end of the piece that constitutes the partition plate is pushed up, the entrance portion of the notch groove hits the engaging piece, which can be prevented without using the bolt that fixes the piece, and thereby the partition plate prevents it. It is possible to prevent the mouse function from being impaired.

Here, preferably, the height of the engaging piece is formed so as to be at least twice as large as the lateral width of the notch groove.
According to such a configuration, when the end portion of the piece constituting the partition plate is pushed up, the entrance portion of the notch groove can be surely hit against the engaging piece, whereby the rat-proof function of the partition plate is more reliable. It can be prevented from being damaged by.

Further, preferably, the plurality of pieces are two or more types of rectangular pieces formed so as to have different widths from each other.
According to this configuration, it is possible to form cable insertion holes of different sizes by removing one of the pieces from the opening, so that it is possible to form insertion holes of different sizes according to the number of cables to be inserted. Therefore, when the putty for rodent prevention is applied to the gap between the cable and the insertion hole, the application range and amount of the putty can be reduced.

Further, the plurality of pieces may be configured to form a trapezoidal shape.
By forming the piece constituting the partition plate into a trapezoidal shape, the gap generated between the cable and the insertion hole can be reduced as compared with the rectangular one, so that the application range and amount of putty can be reduced.

Alternatively, any two of the plurality of pieces may be configured to be provided with a notch capable of forming a cable insertion hole when arranged adjacent to each other.
According to such a configuration, since any two of the plurality of pieces are provided with notches capable of forming cable insertion holes, the cable insertion holes are formed by arranging these pieces adjacent to each other. In addition, the size of the hole for inserting the cable can be made smaller than when the cable insertion hole is formed by removing the piece from the opening, so the application range and amount of putty can be reduced. Can be reduced.

According to the present invention, it is possible to easily cope with a change in the number of cables and to realize a railroad equipment box in which the rodent-proof function is not impaired. Further, according to the present invention, there is an effect that it is possible to realize a railway equipment box capable of responding to a change in the number of cables without causing a significant cost increase.

It shows an example of a general railroad equipment box, and is a perspective view which shows the state which the door on the back side is opened. It is a perspective view which shows the structure of the housing bottom wall of one Embodiment of the railroad equipment box which concerns on this invention. It is a perspective view which shows the state which a part of the partition plate of the bottom wall of a housing is removed. It is an enlarged cross-sectional side view of the main part of the housing bottom wall of the railroad equipment box of an embodiment. It is an enlarged cross-sectional side view which shows the state which the front end of the piece which constitutes the partition plate of the bottom wall of a housing is lifted. It is a top view which shows the structure of the housing bottom wall in the 1st modification of the railroad equipment box of embodiment. It is a top view which shows the structure of the housing bottom wall in the 2nd modification of the railroad equipment box of embodiment.

Hereinafter, the railway equipment box according to the present invention will be described in detail with reference to the drawings.
FIG. 1 shows an example of a general railroad equipment box, and is a perspective view showing a state in which the door on the rear side is opened.
As shown in FIG. 1, the railroad equipment box 10 generates an electric device such as a signal or an electric switch and a signal for controlling the electric device in a box-shaped metal housing 11. It houses electrical equipment such as electromagnetic relays and power supplies that make up a branching sequence circuit. The front and rear of the housing 11 are opened, and doors (not shown) configured to be openable and closable by hinges are provided corresponding to the openings.

A plate-shaped or rail-shaped support frame 12 is erected upward from the bottom wall in the housing 11, and an electric device 13 such as an electromagnetic relay or a terminal block 14 is mounted on the support frame 12 by bolts or the like. A cable 15 is connected to each of the electric devices 13 and the terminal block 14. The electric device 13 shown in FIG. 1 is, to be exact, a connector on the back of the jack board into which the terminal of the electromagnetic relay is inserted. It should be noted that the type and number of electric devices housed inside the railway equipment box, the arrangement, and the number of cables 15 to be connected differ depending on the installation location, usage conditions, usage, and the like. Further, a wooden plate may be laid on the bottom wall of the housing 11, and an electric device such as an electromagnetic relay may be placed on the wooden plate by a mount frame or a vibration isolator. Therefore, the configuration of the instrument box shown in FIG. 1 is merely an example, and is not limited to the configuration as shown in the drawing.

The railroad equipment box 10 shown in FIG. 1 is provided at a position slightly recessed from the rear wall so that a space for passing cables is formed between the support frame 12 and the door as the rear wall. An opening 11A is formed in the bottom wall of the housing 11 corresponding to the space, and as shown in FIG. 2, a wooden partition plate 21 slightly larger than the opening 11A is formed in the opening 11A. It is configured to be installed and closed. Then, the partition plate 21 is formed with an insertion hole through which the cable 15 that is pulled in from the external trough and rises into the railway equipment box is inserted, and a mouse-proof measure is provided in the gap between the insertion hole and the cable 15. Therefore, a putty 16 for filling a hole was applied to close the hole. Therefore, there is a problem that the work may take a long time, or the bottom plate may be left with the bottom plate removed, making it impossible to prevent rats.

In order to solve the above problems, the present invention has devised the configuration of the partition plate 21 at the bottom of the appliance box, and specific examples thereof will be described below with reference to FIGS. 2 to 4. In addition, in FIGS. 2 to 4, for convenience of illustration, a wooden plate 17 is laid on the bottom wall of the housing 11, and an electric device is placed on the wooden plate 17 by a mount frame or a vibration isolator. The equipment is not shown.
2 to 4 show the configuration of the bottom wall of the housing 11 of the railroad equipment box 10 to which the embodiment of the present invention is applied. FIG. 2 is a perspective view thereof, and FIG. 3 shows a part of a partition plate. A plan view showing the removed state, FIG. 4 is an enlarged side view of the main part.

As shown in FIG. 2, in the present embodiment, the wooden partition plate 21 is divided into a plurality of rectangular pieces P1, P2, P3 ... P15, and these pieces are divided into pieces of the bottom wall of the housing 11. It is configured so that the opening 11A can be closed by laying them side by side along the edge of the opening 11A. Moreover, two types of pieces P1, P2, P3 ... P15 having different widths are prepared.

When it is desired to insert a cable through the opening 11A of the bottom wall, the opening 12a is formed by removing a part of the pieces according to the number of cables to be inserted, for example, as shown in FIG. Then, the gap generated when the cable is inserted into the opening 12a is closed by applying putty in the same manner as in FIG. At this time, if the wide piece is removed, a large opening is formed, and if the small piece is removed, a small opening is formed. Therefore, by selecting the piece to be removed according to the number of cables, the cable and the opening 12a can be obtained. The range and amount of putty applied can be reduced by reducing the gap between the two.

Further, in the present embodiment, as shown in FIG. 4, an engaging piece 18 formed by bending the bottom wall constituent member upward is provided along the front end of the opening 11A of the housing 11. In addition, in the vicinity of the front end edge of the lower surface of each piece P1, P2, P3 ... P15 constituting the partition plate 21, the longitudinal direction of the opening 11A, that is, the width of each piece corresponds to the engaging piece 18. A notch groove 21a along the direction is formed. The notch groove 21a of each piece is configured to be engaged with the engaging piece 18 by making the width larger than the thickness of the engaging piece 18.

Each piece is configured to be immovable in the front-rear direction and to be positioned by engaging the notch groove 21a with the engaging piece 18. Further, when each piece is rotated upward and tilted with the lower edge of the rear end as a fulcrum, the edge portion of the entrance of the notch groove 21a abuts on the side surface of the engaging piece 18 as shown in FIG. Therefore, the height of the engaging piece 18 and the width of the notch groove 21a are set so that the engaging piece 18 is not lifted any further. Specifically, for example, if the width of the notch groove 21a is W and the height of the engaging piece 18 is H, it is preferable to set H ≧ 2W.

Further, in the present embodiment, a bracket 19 having an L-shaped cross section is attached from the front end of the opening 11A on the bottom wall of the housing 11 to the lower part of the front wall of the housing 11, and an error occurs in the formation position of the cut groove 21a. Even if there is, the front end of each piece can be accurately positioned. Further, the thickness of each piece P1 to P15 constituting the partition plate 21 is set to be larger than the thickness of the bracket 19. As a result, when the pieces P1 to P15 are installed so as to close the opening 11A, the upper portion of the front end surface 21b of each piece P1 to P15 is exposed above the upper surface of the horizontal portion of the bracket 19. Therefore, when the pieces P1 to P15 are removed, the pieces can be lifted without being disturbed by the bracket 19, and the workability is improved.

With the above configuration, when a small animal such as a mouse pushes up the front end of any piece Pi (i = 1, 2, ... 15) from below the partition plate 21, the edge of the entrance of the cut groove 21a is formed. By abutting on the side surface of the engaging piece 18, it is possible to prevent the piece Pi from tilting by a predetermined angle or more and prevent it from falling from the opening. Further, even when a small animal pushes up the rear end of the piece Pi from below the partition plate 21, the edge of the entrance of the notch groove 21a abuts on the side surface of the engaging piece 18, so that the piece tilts by a predetermined angle or more. It is possible to prevent the piece Pi from coming off the opening.

In a conventional railway equipment box, generally, as shown by the alternate long and short dash line F, a frame or rail for holding the storage device is arranged above the rear end of the partition plate 21 to the very limit. When the rear end of the partition plate 21 is pushed up, the edge of the rear end hits the frame or rail so that it hardly tilts.
In the case of such a structure, the operator first inserts the rear end of the partition plate 21 (piece) into the space between the edge of the opening 11A of the housing bottom wall and the lower end of the frame or rail, and cuts the lower surface. By aligning the entrance of the groove 21a with the head of the engaging piece 18 and lowering the front end of the partition plate 21 (piece), it can be set inside the opening 11A.

Although FIG. 2 shows an example composed of two types, one having a wide width and the other having a narrow width, the widths of all the pieces may be changed. Further, the whole is virtually divided into 16 equal parts, for example, a piece having a width of 8/16 (= 1/2), a piece having a width of 4/16 (= 1/4), and 2/16 ( The partition plate 21 may be composed of a piece having a width of 1/8) and two pieces having a width of 1/16.
By performing such a division method, it is possible to form cable insertion holes of various sizes with a small number of pieces.

(Modification example)
In the first modification, when the piece constituting one partition plate 21 is divided into a trapezoidal shape as shown in FIG. 6 instead of a rectangular shape to form a cable insertion hole, the back side is The narrow pieces P2, P4, P6 ... Are removed. The notch groove 21a on the back surface of each piece is provided in the same manner as in the first embodiment. According to such a modification, there is an advantage that the gap formed between the cable and the insertion hole thereof can be reduced to reduce the application range and amount of putty. Further, when cutting one plate to make a piece, there is an advantage that the cutting process is easy as in the case of the rectangular shape.

The second modification has the same width as the piece constituting the partition plate 21 of the above embodiment, and as shown in FIG. 7, a trapezoidal cable insertion hole can be formed on the back side of the piece. A piece having a notch 22 is provided. This piece may be prepared as a spare piece, or a piece capable of forming a notch 22 by providing a notch line such as a perforation to facilitate breakage and breaking along the notch line. May be. The notch groove 21a on the back surface of each piece is provided in the same manner as in the first embodiment.

When it is desired to form a cable insertion hole using the partition plate 21 of the second modification, the two rectangular pieces are removed and the two spare pieces having the notch 22 are replaced, or the two spare pieces having the notch 22 are provided. The piece is removed and broken along the notch line to form the notch 22, and then the piece is inserted in its original position. According to such a modification, there is an advantage that the gap formed between the cable and its insertion hole can be reduced to further reduce the application range and amount of putty.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications and modifications can be made. For example, in the above embodiment, the engaging piece 18 bent upward along the front end edge of the opening 11A of the bottom wall of the housing is provided, and the engaging piece 18 is engaged near the front end edge of the back surface of the piece constituting the partition plate 21. A notch groove 21a that can be engaged with the piece 18 is provided, but an engaging piece that is bent upward is also provided on the rear end edge side of the opening 11A of the bottom wall of the housing, and the front end edge of the back surface of each piece. Notches that can engage with the engaging piece may be provided in the vicinity and in the vicinity of the trailing edge.

Further, in the above embodiment, the partition plate 21 is provided with the engaging piece 18 bent upward along the front end edge of the opening 11A of the bottom wall of the housing and the notch groove 21a capable of engaging with the engaging piece 18. Although it is formed so as to face in a direction perpendicular to the lower surface of the above, it may be formed so as to be inclined so as to be located forward as it goes upward.
Further, in the above embodiment, the case where the present invention is applied to a railroad equipment box has been described, but the present invention is not limited to the railroad equipment box, and is widely used for equipment boxes installed outdoors such as along roads. be able to.

10 Railroad equipment box 11 Housing 11A Opening 12 Support frame (support member)
15 Cable 16 Putty 18 Engagement piece 21 Partition plate 21a Notch groove 22 Notch

Claims (3)

A housing with a horizontally long opening formed in a part of the bottom wall,
A support member installed in the housing for supporting electrical equipment,
A railroad equipment box provided with a partition plate capable of closing the opening.
An engaging piece is formed on the edge of one of the long sides of the opening so as to project upward.
The partition plate is divided into a plurality of pieces along the longitudinal direction of the opening, and the depth of the portion corresponding to the engaging piece on the lower surface of each piece is the height of the engaging piece. A railroad equipment box characterized in that a notch groove formed so as to be engaged with the engaging piece is provided by being set larger than the size. The railway equipment box according to claim 1, wherein the height of the engaging piece is formed so as to be at least twice as large as the width of the notch groove. The railway equipment box according to claim 2, wherein the plurality of pieces are two or more types of rectangular pieces formed so as to have different widths from each other.

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