JP7013082B2 - Louver for electrical equipment storage box - Google Patents

Description

The present invention relates to a louver for an electric device storage box attached to a housing.

It is known to attach a louver to the side of the housing. Generally, the louver is composed of a member having a male screw and a member having a female screw, and is attached so that the side surface of the housing is sandwiched between the members. At this time, it is necessary to arrange workers inside and outside the housing, and it is not possible to work alone. Therefore, Patent Document 1 discloses a technique that enables a louver to be attached by one person. In Patent Document 1, a round louver having a claw on the side is inserted from the outside of the housing, hooked on the edge of the mounting hole with the claw, and then the fixing tool is screwed into the screw groove of the louver. It is disclosed to fix.

Japanese Unexamined Patent Publication No. 2002-243228

By the way, the louver may be removed. However, in the technique described in Patent Document 1, the claw portion hooked on the edge of the mounting hole must be removed from the inside of the housing. Therefore, it had to be done by two people, or both the work done inside the housing and the work done outside the housing had to be done alone. Further, when an electric device or the like is installed in the housing, it may be difficult to remove the louver inside the housing. Thus, conventional louvers were not something that could be easily removed by one person.

The inventor of this case tried to solve this problem by diligently examining this point. An object of the present invention is to provide a structure in which the louver can be attached and detached from one side of the housing.

In order to solve the above problems, a base fitted into a mounting hole of a housing, a louver body mounted on the base, and a claw portion provided on the base are provided, and the claw portion is provided with the louver body mounted on the base. Then, it is a louver for an electric device storage box that elastically deforms outward.

Further, the base portion has a concave portion at a position different from the claw portion, the louver main body has a convex portion at a position corresponding to the concave portion, and the louver main body is attached to the base with the convex portion fitted in the concave portion. It is preferable to do so.

Further, it is preferable that the claw portion is provided with a step portion at a position facing the end edge of the mounting hole.

Further, it is preferable to provide a plurality of claw portions so that at least one claw portion has a stepped portion having a shape different from that of the other claw portions.

In the present invention, it is possible to have a structure in which the louver can be attached and detached from one side of the housing.

It is an exploded perspective view which looked at the louver of an embodiment from the front side. It is an exploded perspective view which looked at the louver of an embodiment from the back side. It is sectional drawing which showed the state which the louver was attached to the housing. It is the schematic which showed the state which attached the base to the housing. It is a schematic diagram which showed the state just before inserting a louver body into a base attached to a housing. It is a schematic diagram which showed the state which the louver main body was inserted into the base attached to the housing. It is a perspective view which looked at the louver of an embodiment from the back side. It is a partially enlarged view around the recess of FIG. 7. It is a front view of a louver. It is a perspective view which showed the state which divided the louver into two. It is a partially enlarged view around the step portion of FIG. It is the figure which showed the state which the louver was fixed to the housing. It is a rear view of a louver. It is a partial enlarged view around the step part seen from the side. It is the figure which showed the mounting hole, the base and the louver body. It is the figure which showed the base and the louver body fitted in the mounting hole. It is the figure which showed the louver attached to the mounting hole.

The embodiment for carrying out the invention is shown below. As can be seen from FIGS. 1 to 3, the louver 1 of the embodiment includes a base 2 fitted into a mounting hole 91 of a housing 9, a louver body 3 mounted on the base 2, and a base. It is provided with a claw portion 21 provided in 2. Further, as can be understood from FIGS. 1 to 6, by attaching the louver main body 3 to the base 2, the claw portion 21 is elastically deformed outward. Therefore, if the louver body 3 is removed by moving it in the direction opposite to the insertion direction, the elastically deformed claw portion 21 is restored to the original position. Therefore, the louver body 3 can be removed from the housing 9 by moving it in the direction opposite to the insertion direction. Therefore, it is possible to construct a structure in which the louver 1 can be attached and detached from one side of the housing 9.

Here, the outline of the louver 1 of the embodiment will be described. The louver 1 of the embodiment is configured by combining the base 2 and the louver main body 3. The louver 1 is attached to a housing 9 such as a box for storing electrical equipment. Further, at this time, it is fitted into the mounting hole 91 provided in the housing 9.

The base 2 of the embodiment includes a holding portion 22 located around the mounting hole 91. Since the base 2 has a shape having an opening 23, the holding portion 22 is provided in a frame shape. Further, the pressing portion 22 is provided with a claw portion 21 extending to the back surface side. Further, the holding portion 22 is also provided with a wall portion 24 extending toward the back surface side. When the louver body 3 is not assembled to the base 2, a part of the claw portion 21 of the embodiment is configured to be located inward of the inner surface of the wall portion 24.

The louver body 3 of the embodiment includes a feather plate 31. Further, the louver main body 3 includes a frame portion 32 that is overlapped with the holding portion 22. On the back surface side of the frame portion 32, an insertion portion 33 to be inserted into the opening 23 provided in the base 2 is provided. The insertion portion 33 of the embodiment is provided in a cylindrical shape, and is a portion that elastically deforms the claw portion 21 provided on the base 2 outward when the insertion portion 33 is inserted into the opening 23 of the base 2. The outer diameter of the insertion portion 33 is substantially the same as the inner diameter of the wall portion 24, but a slight difference is provided so that the louver body 3 can be smoothly attached and detached.

In the example shown in FIGS. 7 and 8, the base 2 is provided with the recess 25 at a position different from that of the claw portion 21. More specifically, the recess 25 is provided in the wall portion 24 located between the claw portion 21 and the claw portion 21. Further, the louver main body 3 is provided with a convex portion 34 at a position corresponding to the concave portion 25. The convex portion 34 of the embodiment protrudes outward from the insertion portion 33. The louver body 3 is attached to the base 2 so that the convex portion 34 is fitted in the concave portion 25. When the convex portion 34 is fitted in the concave portion 25, the misalignment of the louver body 3 is suppressed.

As can be seen from FIG. 9, the louver body 3 of the embodiment includes a knob portion 35 protruding outward from the circular frame portion 32. The knob portion 35 is a portion to be accommodated in the notch portion 26 provided on the front side of the pressing portion 22 of the base 2. The base 2 of the embodiment is configured so that a gap is formed between the notch portion 26 and the knob portion 35 even when the louver main body 3 is attached to the base 2. The louver body 3 can be removed from the base 2 by inserting a claw or the like into this gap and applying a force to the knob portion 35.

The louver 1 of the embodiment is fixed to the mounting hole 91 of the housing 9 by moving the claw portion 21 outward, but the wall thickness of the housing 9 is determined by a dimensional error of a metal plate or painting. The thickness is not always constant due to the difference in thickness. Therefore, in the examples shown in FIGS. 10 to 14, the claw portion 21 is configured to have a step portion 27 at a position facing the end edge of the mounting hole 91. More specifically, among the claw portions 21, the stepped portion 27 is provided on the inclined surface facing the pressing portion 22. By providing the stepped portion 27 at a position facing the end edge of the mounting hole 91, it becomes easy to correspond to the thickness of the wall of the housing 9, and it becomes easy to fix it in an appropriate state.

The step portion 27 provided on the claw portion 21 may be configured to have the same step portion 27 on all the claw portions 21, but at least one of the plurality of claw portions 21 is the step portion of the other claw portion 21. It is also possible to have a shape different from 27. In the example shown in FIG. 13, half of the claw portions 21 are provided so as to be different from the other claw portions 21. More specifically, the two types of step portions 27 are provided so as to be alternately positioned with respect to the six claw portions 21 arranged on the same circle. Further, the step portion 27 has two types in which the distance L between the position of the top thereof and the pressing portion 22 is different. Since the two types of stepped portions 27 can be hooked on the housing 9 at different positions from each other, the width corresponding to the wall thickness of the housing 9 is wider than that of the case where only one type of stepped portion 27 is configured.

Next, a method of attaching the louver 1 to the housing 9 will be described. As shown in FIG. 16, the base 2 is fitted into the mounting hole 91 from the outside of the housing 9 with respect to the housing 9 provided with the circular mounting hole 91 as shown in FIG. In this state, since the claw portion 21 is not deformed outward, the base 2 can be smoothly attached.

Next, as shown in FIG. 17, the louver body 3 is fitted into the base 2 from the outside of the housing 9. As a result, as shown in FIGS. 4 to 6, the claw portion 21 is deformed so as to be pushed outward. When the claw portion 21 moves outward, the claw portion 21 is caught on the edge of the mounting hole 91, and it is possible to prevent the base 2 from falling out of the housing 9.

At this time, since the convex portion 34 provided in the louver main body 3 is fitted into the concave portion 25 provided in the base 2, the louver main body 3 is prevented from coming off from the base 2.

Next, a method of removing the louver 1 from the housing 9 will be described. A force is applied to the knob portion 35 one by one to shift the louver body 3 toward the outside of the housing 9. In this state, the louver body 3 can be pulled out from the base 2. The base 2 from which the louver body 3 has been removed can be removed by simply pulling it toward the outside of the housing 9 because the claw portion 21 restores the original position. As described above, in the embodiment, both the louver 1 can be attached and detached from the outside of the housing 9.

Although the above description has focused on one embodiment, the present invention is not limited to the above embodiment and can be various modes. For example, it is possible to use a square louver instead of a round louver.

The work of attaching and detaching the louver may be performed not on the outside of the housing but on the inside.

1 Louver 9 Housing 2 Base 3 Louver body 21 Claw 25 Concave 27 Step 34 Convex 91 Mounting hole

Claims (4)

It includes a base that is fitted into the mounting hole of the housing, a louver body that can be attached to the base, and a claw portion that is provided on the base. A louver for an electrical equipment storage box that elastically deforms and restores its original position when the louver body is removed from the base . The first aspect of claim 1 is that the base portion has a concave portion at a position different from that of the claw portion, the louver main body has a convex portion at a position corresponding to the concave portion, and the louver main body is attached to the base with the convex portion fitted in the concave portion. Louver for the listed electrical equipment storage box. The louver for an electric device storage box according to claim 1 or 2, wherein the claw portion is provided with a step portion at a position facing the end edge of the mounting hole. The louver for an electric device storage box according to claim 3, wherein a plurality of claws are provided, and at least one claw is a step having a shape different from that of the other claws.

Images