JP7258433B2 - blind material - Google Patents

Description

The present invention relates to blind members.

A spare space is sometimes provided in a box for storing electrical equipment such as a distribution board or a switchboard in preparation for the addition of a breaker or the like. In such a case, the protective plate attached to the inside of the electrical equipment storage box is provided with an opening at a position corresponding to the spare space. If this opening is left as it is, it is not only dangerous but also aesthetically unfavorable. Therefore, conventionally, a blind member as described in Patent Document 1 is fitted to close the opening.

JP-A-2000-253516

By the way, the conventional blind member has a structure to be fitted into the opening of the protective plate. For this reason, there is a possibility that the blind member may come off due to deflection of the protection plate caused by opening and closing the protection plate.

The inventor of this case tried to solve the problem by earnestly studying this point. The problem to be solved by the present invention is to make the blind member to be attached to the opening of the protective plate of the electrical equipment storage box easy to attach and difficult to fall off. Another object of the present invention is to suppress the deflection of the protective plate, which tends to occur more easily due to the lengthening of the opening of the protective plate.

In order to solve the above problems, a blind part that can cover the front side of the opening of the protective plate for the electrical equipment storage box at the time of installation, and a blind part that is positioned at the rear side of the protective plate at the time of installation. A blind member having a fixed part that sandwiches a protective plate therebetween, wherein one of the blind part and the fixed part is moved along the protective plate while the other is kept in contact with the protective plate. The blind member is characterized in that the blind portion and the fixed portion are connected by a connecting portion so that the above-mentioned state can be achieved.

Further, it is preferable that the blind portion is provided with an elongated hole that allows the connecting portion that connects the blind portion and the fixed portion to slide.

In addition, it is preferable that the blind portion has a convex portion that protrudes toward the rear surface side, and that the fixed portion has a hole into which the convex portion can be inserted.

In addition, it is preferable that the blind portion includes a restricting portion that restricts movement of the fixed portion to the rear surface side of the blind portion, and a downward movement restricting portion that restricts the fixed portion from moving downward.

According to the present invention, the blind member attached to the opening of the protective plate of the electrical equipment storage box can be easily attached and is difficult to fall off.

FIG. 4 is a perspective view showing an example of a state in which the blind member is attached to the protection plate of the electrical equipment storage box; It is a perspective view which shows the state which attached the blind member to the protection plate. It is the elements on larger scale of the state which attached the blind member to the protection plate. However, it is viewed from the front side of the protection plate. It is the elements on larger scale of the state which attached the blind member to the protection plate. However, it is viewed from the rear side of the protective plate. It is an exploded perspective view of a blind member. Fig. 2 is a perspective view of a blind member; However, it is viewed from the front side. Fig. 2 is a perspective view of a blind member; However, it is viewed from the rear side. Fig. 2 is a side view of the blind member; However, the blind part and the fixed part are in close contact with each other. Fig. 2 is a side view of the blind member; However, there is a gap between the blind portion and the fixed portion. It is sectional drawing which shows the state before attaching a blind member to a protection plate. It is sectional drawing which shows the state which hooked the one end side of the blind member on the protection plate. FIG. 4 is a cross-sectional view showing a state in which the blind member is fitted into the opening of the protective plate; 13 is a cross-sectional view showing a state in which the fixing portion is slid from the state shown in FIG. 12; FIG. 14 is a cross-sectional view showing a state in which the fixing portion is moved toward the blind portion from the state shown in FIG. 13, and the protective plate is sandwiched between both ends of the fixing portion and the blind portion; FIG. Figure 7 is a perspective view of a blind member different from the blind member shown in Figure 6; However, it is viewed from the front side. It is the perspective view which looked at the blind member shown in FIG. 15 from the rear surface side. FIG. 16 is a cross-sectional view showing a state in which the fixing portion of the blind member shown in FIG. 15 is moved toward one end of the blind member; FIG. 18 is a cross-sectional view showing a state in which the fixing portion is slid in the longitudinal direction from the state shown in FIG. 17; 19 is a cross-sectional view showing a state in which the fixing portion is moved toward the blind portion from the state shown in FIG. 18; FIG. Figure 16 is a perspective view of a blind member different from the blind members shown in Figures 6 and 15; However, it is viewed from the front side. It is the perspective view which looked at the blind member shown in FIG. 20 from the rear surface side. Figure 21 is an exploded perspective view of the blind member shown in Figure 20; Figure 21 is a side view of the blind member shown in Figure 20; However, it shows a state in which the extended portion is positioned inwardly of the projecting portion. Figure 21 is a side view of the blind member shown in Figure 20; However, it shows a state in which the extended portion is located outside the projecting portion. Figure 24 is a cross-sectional view of the blind member in the state shown in Figure 23; Figure 25 is a cross-sectional view of the blind member in the state shown in Figure 24;

Modes for carrying out the invention are shown below. As is understood from FIGS. 1 to 4, the blind member 1 of this embodiment can cover the front side of the opening 94 of the protective plate 93 of the electrical equipment storage box 9 during installation. and a fixing part 5 which is to be positioned on the rear side of the protection plate 93 at the time of installation and sandwiches the protection plate 93 between the blind part 2 and the fixing part 5.例文帳に追加Further, the blind part 2 and the fixing part 5 are arranged so that one of the blind part 2 and the fixing part 5 can be moved along the protection plate 93 while one of the blind part 2 and the fixing part 5 is kept in contact with the protection plate 93 . are connected by the connecting portion 81 . For this reason, it is possible to make it easy to attach and difficult to fall off.

In the example shown in FIGS. 1 to 4, the blind member 1 is provided with a long hole 21 in the blind portion 2, which allows the connecting portion 81 that connects the blind portion 2 and the fixed portion 5 to slide. there is If the fixed portion 5 is moved by sliding the connecting portion 81, the protective plate 93 can be placed between both ends of the fixed portion 5 and both ends of the blind portion 2, which facilitates installation. It is possible to make it easy and difficult to fall off.

Here, the electrical equipment storage box 9 to which the blind member 1 is attached will be described. In the electrical equipment storage box 9 such as a distribution board or switchboard, electrical equipment such as a circuit breaker and measuring equipment is stored in a housing 91 . Moreover, a protective plate 93 is installed so as to cover conductive portions such as terminal portions of the electrical equipment. In this case, an opening 94 is provided in the protective plate 93 to expose the handle, switch, display, etc. of the electrical equipment. Some electric equipment storage boxes 9 are provided with a door 92 that further covers the protective plate 93, and some electric equipment storage boxes 9 are not provided with such a door 92.

Assuming that the number of circuits will be increased in the future, the electrical equipment storage box 9 of the embodiment has a spare space for storing the electrical equipment, and the protective plate 93 is scheduled to be installed in the spare space. An opening 94 is also formed for the equipment of .

As can be understood from FIG. 5, the blind member 1 of the present embodiment includes a blind portion 2 capable of covering the front side of the opening 94 of the protective plate 93 of the electrical equipment storage box 9 at the time of installation, A fixing portion 5 which is to be positioned on the rear side of the protection plate 93 when attached and sandwiches the protection plate 93 between the blind portion 2 and the fixing portion 5 is provided. , are connected by a plurality of screws forming a connecting portion 81 . In the embodiment, the gap between the blind part 2 and the fixing part 5 can be narrowed by tightening the screw, and the gap between the blind part 2 and the fixing part 5 can be widened by loosening the screw.

The hole of the blind portion 2 through which the screw is inserted is an oval long hole 21 elongated in the left-right direction. Since the screw that forms the connecting portion 81 is inserted into the long hole 21 , the fixing portion 5 can be moved along with the connecting portion 81 by moving the connecting portion 81 in the longitudinal direction of the long hole 21 . Become. Therefore, it becomes possible to move the other along the protection plate 93 while suppressing the movement of one of the blind portion 2 and the fixed portion 5 with respect to the protection plate 93 . As understood from FIG. 6 , the blind member 1 of the embodiment includes a substantially rectangular parallelepiped blind portion 2 , and the length of the blind portion 2 in the longitudinal direction is equal to the length of the blind member 1 . is longer than the lateral width of the opening 94 of the protective plate 93 to which is attached.

By the way, as can be understood from FIG. 7, extending portions 22 extending from the front surface toward the rear surface are provided at the upper and lower ends of the blind portion 2 of the embodiment. The length of the extending portion 22 in the left-right direction is substantially the same as the width in the left-right direction of the opening 94 of the protection plate 93, and the extending portion 22 can be inserted into the opening 94 of the protection plate 93. , the lateral movement of the blind portion 2 can be restricted.

It is preferable that the vertical length of the blind portion 2 corresponds to the vertical length of the electrical equipment in the state of being stored in the electrical equipment storage box 9 . For example, the length may be substantially the same as that of the electrical equipment, the length may be an integral multiple of the electrical equipment, or the length obtained by dividing the length of the electrical equipment by an integer. By doing so, even when the blind member 1 is replaced with an electrical device such as when the number of circuits is increased, it is possible to prevent the protective plate 93 from forming an incomplete opening.

The fixing part 5 of the embodiment is provided by a plate material. The material is not particularly limited, but by using a metal material, the strength of the protective plate 93 can be improved when the blind member 1 is fixed to the protective plate 93 . Therefore, by providing the opening 94 in the protective plate 93 , it is possible to prevent the protective plate 93 from being distorted due to a decrease in the strength of the protective plate 93 .

The fixing portion 5 of the embodiment is provided with a plurality of screw holes 51 to which screws inserted through the long holes 21 provided in the blind portion 2 are attached. The length of the fixed portion 5 in the left-right direction is preferably longer than the width of the opening 94 of the protection plate 93 in the left-right direction and shorter than the length of the blind portion 2 in the left-right direction. In the embodiment, the length in the longitudinal direction of the fixing portion 5 is longer than the length in the lateral direction of the opening 94 of the protection plate 93 and shorter than the length in the longitudinal direction of the blind portion 2 . In the embodiment, the length of the fixing portion 5 in the vertical direction is set to be shorter than the length between the extending portions 22 of the blind portion 2 in order to position the fixing portion 5 between the extending portions 22 .

By the way, in the fixing portion 5 of the embodiment, an oval hole portion 52 elongated in the left-right direction is further formed between the screw holes 51 . On the other hand, the rear surface of the blind portion 2 is provided with a convex portion 23 that is inserted into the hole portion 52 of the fixed portion 5 . By inserting the convex portion 23 into the hole portion 52 of the fixing portion 5 , it is possible to restrict the movement of the fixing portion 5 in the vertical and horizontal directions with respect to the blind portion 2 . In this way, since the movement of the fixed part 5 can be made within a certain range, the blind part 2 is configured to have the convex part 23 projecting to the rear surface side, and the convex part 23 is inserted into the fixed part 5. A configuration with a possible hole 52 is preferred.

By the way, although the fixed part 5 is connected to the blind part 2 by screws, it is also assumed that the fixed part 5 and the screws are separated. For this reason, the blind portion 2 is provided with a restricting portion 24 that suppresses the movement of the fixing portion 5 toward the rear surface side of the blind portion 2 and a downward movement suppressing portion that suppresses the downward movement of the fixed portion. is preferred. In this way, even if the fixing part 5 and the screw are separated, it is possible to prevent the fixing part 5 from falling immediately. In addition, in the embodiment, protrusion-like restricting portions 24 are formed on the surfaces of the extending portions 22 facing each other. In addition, the extended portion 22 and the convex portion 23 located on the lower side function as a downward movement suppressing portion.

As can be seen from FIGS. 7, 8 and 9, in the embodiment, even if the fixing portion 5 and the screw are separated, the blind portion 2 is not inserted into the hole portion 52 of the fixing portion 5. Movement in the vertical direction is restricted by the insertion of the projection 23 , and movement in the front-rear direction is restricted by the restriction portion 24 of the extending portion 22 of the blind portion 2 . On the other hand, the fixing portion 5 can be moved in the left-right direction with respect to the blind portion 2 within the range of the width in the left-right direction of the hole portion 52 provided in the fixing portion 5 . Therefore, even if the fixing part 5 and the screw are separated, the fixing part 5 can be prevented from falling off from the blind part 2 immediately.

Here, a procedure for attaching the blind member 1 to the protective plate 93 will be described. First, the blind part 2 and the fixed part 5 are connected with screws (step 1). Before attaching the blind member 1 to the protective plate 93, the gap between the blind part 2 and the fixed part 5 is made wider than the thickness of the protective plate 93 (step 2). 10 and 11, the blind member 1 is hooked to the protective plate 93 using the gap provided at one end of the blind portion 2 and the fixed portion 5 (step 3). .

After that, as can be understood from FIG. 12, the entire extended portion 22 of the blind portion 2 is fitted into the opening 94 of the protective plate 93 (step 4). Next, as can be seen from FIGS. 12 and 13, the screw that is the connecting portion 81 is moved left and right, and the protective plate 93 is positioned between both ends of the blind portion 2 and the fixed portion 5. (Step 5). After that, the screw is tightened to narrow the gap between the blind portion 2 and the fixed portion 5, and the blind member 1 is fixed to the opening 94 of the protective plate 93 (see FIGS. 13 and 14). Through the above steps, the blind member 1 can be fixed from the front side of the protection plate 93 without opening the protection plate 93 .

When the blind member 1 is to be removed from the opening 94 of the protection plate 93, the steps described above may be reversed.

Next, an example different from the example described above will be described. In the example shown in FIGS. 15 and 16, a projection 33 is formed in the center of the rear surface of the blind portion 2, and a hole 62 through which the projection 33 is inserted is provided in the fixed portion 5. As shown in FIG. As will be understood from FIGS. 17 to 19, the protrusions 33 and the holes 62 position the fixing portion 5 to the blind portion 2 when the protective plate 93 is sandwiched between the blind portion 2 and the fixing portion 5. On the other hand, it functions so as to be determined substantially constant. The shape of the hole 62 provided in the fixing portion 5 is not limited, but any shape may be used as long as it restricts the lateral movement of the fixing portion 5 with the protrusion 33 of the blind portion 2 inserted therethrough.

In this example, the length of the convex portion 33 in the front-rear direction is preferably shorter than the length obtained by subtracting the thickness of the fixing portion 5 from the length of the screw protruding from the rear surface of the blind portion 2 . If the protrusion 33 has such a length, the protrusion 33 can be inserted into the hole 62 of the fixing portion 5, thereby restricting the movement of the fixing portion 5 in the left-right direction. is loosened to release the state in which the convex portion 33 is inserted through the hole 62 of the fixing portion 5, the fixing portion 5 can be moved in the left-right direction. The procedure for attaching and detaching the blind member 1 to and from the protective plate 93 may be the same as in the above example.

Further, another example will be described. As can be understood from FIGS. 20 to 22, in this example, a second extension portion 42 is provided by further extending one part of the left and right ends of the extension portion 22 of the blind portion 2 . The second extending portion 42 is provided with a protruding portion 44 that protrudes in the front direction. Further, the fixed portion 5 is provided with an extended portion 73 extending in the vertical direction at the end portion in the same direction as the direction in which the second extended portion 42 is formed. The projecting portion 44 provided on the second extending portion 42 can abut on the expanding portion 73 so as to restrict the leftward movement of the fixing portion 5 . In addition, when the extended portion 73 of the fixing portion 5 rides over the protruding portion 73 of the second extending portion 42, the leftward movement restriction of the fixing portion 5 is released.

In this example as well, the procedures for attaching and detaching the blind member 1 to and from the protective plate 93 may be the same as in the previous example. By the way, in this example, in step 5, the extension part 73 of the fixing part 5 is moved so as to get over the projecting part 44 of the second extending part 42, and between both ends of the blind part 2 and the fixing part 5 The protective plate 93 is positioned, but in order to release this state, the extended portion 73 of the fixing portion 5 needs to climb over the projecting portion 73 of the second extending portion 42 . Therefore, after the blind member 1 is attached to the opening 94 of the protective plate 93, the blind member 1 is difficult to fall off.

Although the present invention has been described above using the embodiments as examples, the present invention is not limited to the above-described embodiments, and various aspects are possible. For example, by providing an elongated hole in the fixing portion 5 that allows the connecting portion 81 to slide, or by forming the connecting portion 81 that connects the blind portion 2 and the fixing portion 5 with a member that elastically deforms in the left-right direction, the fixing portion 5 can be slidable with respect to the blind portion 2, and after being fitted into the opening 94 of the protective plate 93, it can be fixed by tightening with screws.

1 Blind Member 2 Blind Part 5 Fixing Part 21 Long Hole 93 Protection Plate 94 Opening

Claims (3)

The protective plate is sandwiched between the blind part that can cover the front side of the opening of the protective plate of the electric equipment storage box when installed, and the blind part that is positioned on the rear side of the protective plate when installed. A blind member comprising a fixing portion that becomes
The blind part is provided with a long hole that allows the connecting part that connects the blind part and the fixed part to slide,
The blind portion and the fixed portion are connected by the connecting portion so that one of the blind portion and the fixed portion can be moved along the protective plate while the other is kept in contact with the protective plate. A blind member characterized by: 2. The blind member according to claim 1 , wherein the blind portion has a projection projecting rearward, and the fixed portion has a hole into which the projection can be inserted. The protective plate is sandwiched between the blind part that can cover the front side of the opening of the protective plate of the electric equipment storage box when installed, and the blind part that is positioned on the rear side of the protective plate when installed. A blind member comprising a fixing portion that becomes
The blind portion and the fixed portion are connected by the connecting portion so that one of the blind portion and the fixed portion can be moved along the protective plate while one of the blind portion and the fixed portion is in contact with the protective plate,
A blind member provided with a blind portion including a restricting portion that restricts movement of a fixing portion to the rear surface side of the blind portion, and a downward movement suppressing portion that restricts downward movement of the fixing portion.

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