JP2012022859A - Switch box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch box, to which an operation button and a lamp are mounted, inside which the switch and an electrical wiring are housed, in particular, to and from which only a cover frame can be easily attached and detached, for example, which can facilitate an operation for maintaining and inspecting the switch and the electrical wiring housed in the frame.SOLUTION: The switch box comprises a frame having a body frame and a cover frame, and a pair of end caps mounted on both ends of the frame. A pair of the end caps are engaged and arranged on both ends of the body frame, and the cover frame is provided to block a space surrounded by the body frame and a pair of the end caps, and is detachably mounted to a pair of the end caps or the body frame by a stationary member, so as to detach and attach only the cover frame.

Description

  The present invention relates to a switch box in which, for example, operation buttons and lamps are attached and switches and electric wiring are accommodated therein. In particular, the manufacture and assembly are easy, and the operation buttons and lamps are exchanged and accommodated in the interior. It also relates to devices that have been devised so that they can be easily disassembled when repairing switches and electrical wiring.

  For example, a conventional switch box has a configuration as shown in FIGS. Details will be described below.

  As shown in FIGS. 8 and 10, in the conventional switch box 101, end caps 105, 105 are detachably attached to four ends of the frame 103 by four screws 107, 107, 107, 107, respectively. It is the composition which is.

As shown in FIG. 9, the frame 103 includes a main body frame 109 and a lid frame 111. The main body frame 109 has a substantially U-shaped cross-sectional shape, and is provided with female screw portions 113 and 113 at two positions on the left and right sides at both ends in the length direction. Engaging portions 114 and 114 are provided at the left and right upper ends of the main body frame 109, while engaging portions 116 and 114 are engaged with the engaging portions 114 and 114 at the left and right ends of the lid frame 111. 116 is provided. And in the state which engaged the said engaging parts 114 and 114 and the engaging parts 116 and 116, there is provided the internal thread part there. In other words, the respective engagements 114 and 116 are provided with half-split female screw portions, and by engaging them, substantially circular female screw portions 115 and 115 are formed.
Female screw portions 115 and 115 are provided at two ends on the left and right sides of the lid frame 111 in the length direction.

  When assembling the switch box 101 having the above-described configuration, the lid frame 111 is first attached to the main body frame 109 to configure the frame 103. In this state, end caps 105, 105 are installed at both left and right ends of the frame 103, and four screws 107, left and right, are screwed in.

  Further, for example, Patent Document 1 discloses such a switch box.

JP 2001-52555 A

  According to the above-described conventional configuration, for example, there is a problem that work for repairing a switch and wiring housed and arranged therein is troublesome. That is, when repairing the switch and the wiring housed in the frame 103, it is necessary to remove the lid frame 111, but in the conventional configuration, only the lid frame 111 cannot be removed. This is because it is necessary to remove the four screws 107, remove the end caps 105, 105 attached to the left and right sides of the frame 103, and then remove the lid frame 111.

  The present invention has been made based on such points, and the object of the present invention is that only the lid frame can be easily attached and detached, thereby enabling, for example, a switch or wiring housed in the frame. An object of the present invention is to provide a switch box capable of facilitating maintenance and inspection work.

In order to solve the above problem, a switch box according to claim 1 comprises a frame comprising a main body frame and a lid frame, and a pair of end caps attached to both ends of the frame, wherein the pair of end caps is the main body. A space surrounded by the main body frame and the pair of end caps in a state where the lid frame is engaged and arranged at both ends of the frame and the pair of end caps are engaged and arranged at both ends of the main body frame. And is detachably attached to the pair of end caps or the main body frame by a fixing member, and by removing the fixing member, only the lid frame is removed without removing the pair of end caps. It is characterized by being configured to be detachable.
The switch box according to claim 2 is characterized in that, in the switch box according to claim 1, the lid frame is detachably attached to the pair of end caps by the fixing member.
The switch box according to claim 3 is the switch box according to claim 1 or 2, wherein either one of the end cap and the main body frame is provided with an engaging claw, One of the main body frames is provided with an engagement hole for engaging the engagement claw.
The switch box according to claim 4 is the switch box according to any one of claims 1 to 3, wherein either one of the end cap and the main body frame is provided with a guide convex portion. The other of the end cap and the main body frame is provided with a guide concave portion that is movably engaged with the guide convex portion.
The switch box according to claim 5 is the switch box according to claim 4, wherein two types of guide portions including the guide convex portion and the guide concave portion are provided, and the guide portions are orthogonal to each other. It is characterized by being guided in two different directions.
The switch box according to claim 6 is the switch box according to claim 4, wherein either one of the end cap and the main body frame is provided with an engaging claw, and the end cap and the main body frame are connected to each other. One of the two is provided with an engagement hole for engaging the engagement claw, and the end cap is engaged with the main body frame so that the engagement claw is engaged with the engagement hole. In order to prevent the engagement claw and the main body frame from interfering when engaged with each other, the guide recess is provided with a relief portion.

As described above, according to the switch box of the first aspect, the lid frame is surrounded by the main body frame and the pair of end caps in a state where the pair of end caps are engaged and arranged at both ends of the main body frame. The lid is installed so as to close the space, is detachably attached to the pair of end caps or the main body frame by a fixing member, and the lid is removed without removing the pair of end caps by removing the fixing member. Since only the frame can be attached and detached, only the lid frame can be easily removed, and the switch and wiring in the switch box can be easily repaired.
According to the switch box described in claim 2, since the lid frame is detachably attached to the pair of end caps by the fixing member, the same effect as the switch box described in claim 1 can be obtained.
According to the switch box of claim 3, an engagement claw is provided on one of the end cap and the main body frame, and the other of the end cap and the main body frame has the above-mentioned Since the engagement hole for engaging the engagement claw is provided, the end cap can be reliably engaged with the main body frame.
According to the switch box of claim 4, a guide convex portion is provided on one of the end cap and the main body frame, and on the other of the end cap and the main body frame. Since the guide concave portion is movably engaged with the guide convex portion, the guide convex portion and the guide concave portion are engaged with each other so that the end cap is accurately engaged with the main body frame. In addition, it is possible to prevent rattling and displacement of the end cap with respect to the main body frame due to external force.
Further, according to the switch box of the fifth aspect, there are provided two kinds of guide portions including the guide convex portion and the guide concave portion, and each guide portion guides in two different directions orthogonal to each other. Therefore, the effect of the switch box according to claim 4 can be obtained in the two different directions orthogonal to each other, and the higher effect can be obtained.
According to the switch box of claim 6, an engagement claw is provided on one of the end cap and the main body frame, and the other of the end cap and the main body frame has the above-mentioned An engaging hole for engaging the engaging claw is provided. When the end cap is engaged with the main body frame and the engaging claw is engaged with the engaging hole, the engaging claw is engaged. Since the guide recess is provided with a relief portion so as to prevent interference between the joint claw and the main body frame, the end cap can be easily attached to the main body frame and reliably. The end cap can be engaged with the body frame.

It is a figure which shows one Embodiment of this invention, and is a perspective view which shows the switch box by this Embodiment. It is a figure which shows one Embodiment of this invention, and is an exploded perspective view which shows the end cap and main body frame which comprise the switch box by this Embodiment. It is a figure which shows one Embodiment of this invention, and is an exploded perspective view which shows the state which removed the cover frame of the switch box by this Embodiment. FIG. 4A is a plan view showing a frame of a switch box according to the present embodiment, and FIG. 4B is a view showing a frame of the switch box according to the present embodiment. FIG. 4C is a front view, FIG. 4C is a bottom view showing the frame of the switch box according to the present embodiment, and FIG. 4D is a side view showing the frame of the switch box according to the present embodiment. FIG. 5A is a front view showing a main body frame of a switch box according to the present embodiment, and FIG. 5B is a main body frame of the switch box according to the present embodiment. FIG. FIG. 6A is a front view showing a switch box cover frame according to this embodiment, and FIG. 6B is a switch box cover frame according to this embodiment. FIG. FIG. 7A is a plan view showing an end cap of a switch box according to this embodiment, and FIG. 7B is an end cap of the switch box according to this embodiment. 7C is a bottom view showing the end cap of the switch box according to the present embodiment, and FIG. 7D is a side view showing the end cap of the switch box according to the present embodiment. . It is a figure which shows the prior art and is a perspective view which shows the conventional switch box. It is a figure which shows the prior art and is a disassembled perspective view which shows the main body frame and lid frame of the conventional switch box. It is a figure which shows the prior art, and is an exploded perspective view which shows the state removed from the end cap of the conventional switch box.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1, the switch box 1 according to the present embodiment includes a frame 3 and end caps 5 and 5 attached to both sides thereof, and has a substantially rectangular parallelepiped shape.
As shown in FIGS. 3 and 4, the frame 3 includes a main body frame 7 and a lid frame 9 engaged and arranged on the main body frame 7.

  As shown in FIGS. 2 and 5, the main body frame 7 has a substantially U-shaped cross-sectional shape, and a bottom plate 11 and a pair of erected continuously from the left and right ends of the bottom plate 11. Main body frame side plates 13 and 13. As shown in FIGS. 2 and 4, engagement holes 15, 15 are provided on both ends of the bottom plate 11 in the longitudinal direction.

  On the inside of the end of the main body frame side plate 13 on the bottom plate 11 side (lower side in FIG. 2), a guide convex portion 19 is provided over the entire length of the main body frame 7. Further, a stepped portion 21 is provided over the entire length of the main body frame 7 on the outer side of the main body frame side plate 13 on the side opposite to the bottom plate 11 (upper side in FIG. 2). The body frame side engagement plate 23 is located on the side opposite to the bottom plate 11 (upper side in FIG. 2) than the stepped portion 21 of the body frame side plate 13. On the inner side of the bottom plate 11 side (lower side in FIG. 2) end of the main body frame side engaging plate 23, for guiding over the entire length in the longitudinal direction of the main body frame 7 toward the bottom plate 11 side (lower side in FIG. 2). The convex part 24 protrudes and is formed.

  As shown in FIGS. 3, 4, and 6, the lid frame 9 includes a top plate 25 and lid frame side plates 27 and 27 that are connected to both ends in the width direction of the top plate 25. Further, on the inner side of the base end portion of the lid frame side plates 27, 27, engagement concave portions 29, 29 are provided over the entire length in the longitudinal direction of the lid frame 27. Further, through holes 31 are provided in the center of the top plate 25. Operation buttons, lamps and the like (not shown) are attached to the through holes 31 and 31. Further, through holes 33 are provided on both ends of the top plate 25 in the longitudinal direction.

  2 and 7, the end cap 5 is first provided with an end cap body 6 that opens at one end along the longitudinal direction of the frame 3 and has a substantially square cross-sectional shape. ing. End cap side engagement plates 35, 35, 35, 35, 35, 35 are projected and formed intermittently at the inner edge of the opening of the end cap body 6. The end cap side engagement plate 35 is engaged with the inside of the longitudinal end portion of the frame 3 when the switch box 1 is configured.

  Further, a connecting plate 37 is projected and formed from the center of one side (the lower side in FIG. 2) of the inner edge of the opening of the end cap body 6. An engaging claw 39 projects and is formed on the distal end side of the connection plate 37 toward the outer peripheral side of the end cap 5. As shown in FIG. 7 (d), the engaging claw 39 protrudes and is arranged up to a height position equivalent to the height of the outer peripheral surface of the end cap 5. The engaging claw 39 is fitted into the engaging hole 15 of the body frame 7 already described when the end cap 5 is attached to the body frame 7. Further, as shown in FIG. 7C, a through hole 41 is provided on the base end side of the connection plate 37.

  As shown in FIGS. 2 and 7, end cap side engaging portions 43, 43 are formed from both ends of one side (lower side in FIG. 2) of the inner edge of the opening of the end cap body 6. Projected and formed. The end cap side engaging portion 43 is provided with a guide recess 45. Although the height of the inner surface of the upper side wall in FIG. 7D of the guide recess 45 is constant, the inner surface of the lower side wall of FIG. 7D in the guide recess 45 is not constant. That is, the inner surface of the lower side wall in FIG. 7D of the guide recess 45 is low at the front end side in the longitudinal direction of the end cap side engaging portion 43, and near the center in the longitudinal direction of the end cap side engaging portion 43. The height increases toward the base end side, and the height is maintained up to the base end portion on the base end side. Therefore, the engaging claw 39 is prevented from interfering with the main body frame 7 when the end cap 5 is engaged with the main body frame 7 on the front end side in the longitudinal direction of the guide recess 45. An escape portion is provided.

  End cap side engaging portions 47, 47 are projected and formed from two sides perpendicular to the side where the connection plate 37 is provided at the inner edge of the opening of the end cap body 6. A guide recessed portion 49 is formed on the end cap side engaging portion 47 on the side opposite to the end cap side engaging portion 43 (upper side in FIG. 7D). The guide concave portion 49 is engaged with the guide convex portion 24 of the main body frame 7 when the end cap 5 is attached to the main body frame 7. Further, the upper surface in FIG. 7D of the end cap side engaging portion 47 is low at the front end side in the longitudinal direction of the end cap side engaging portion 47, and the end cap side engaging portion near the center in the longitudinal direction. The height increases toward the base end side of 47, and the height is maintained up to the base end portion on the base end side. Therefore, the engaging claw 39 interferes with the main body frame 7 when the end cap 5 is engaged with the main body frame 7 on the upper side in FIG. An escape portion for preventing this is provided.

  The guide recess 45 and the guide projection 19 and the guide recess 49 and the guide projection 24 guide the end cap 5 in two directions orthogonal to each other. Is. That is, the guide portion formed by the guide concave portion 45 and the guide convex portion 19 is guided in the vertical direction in FIG. 2, and the guide portion formed by the guide concave portion 49 and the guide convex portion 24 is lateral in FIG. To guide you.

  When the end cap 5 is attached to the main body frame 7, the guide concave portion 45 of the end cap side engaging portion 43 is engaged with the guide convex portion 19 of the main body frame 7, and the end cap side engaging portion 47. The guide concave portion 49 is engaged with the guide convex portion 24 of the main body frame 7. At that time, the interaction between the guide convex portion 19 and the lower surface in FIG. 7D of the guide concave portion 45, and the concave portion between the guide convex portion 24 and the main body frame side plate 13. The end cap 5 moves so that the engaging claw 39 provided on the connection plate 37 does not interfere with the body frame 7 due to the interaction between the guide recess 47 and the shape of the guide recess 47 in FIG. Then, the engaging claw 39 is engaged with the engaging hole 15 of the main body frame 7.

A bracket 51 protrudes and is formed on the inner edge of the opening of the end cap 5 from the side opposite to the side where the connection plate 37 is provided. A hole is drilled in the surface of the bracket 51 on the side opposite to the connection plate 37 (upper side in FIG. 7D), and an insert nut 53 is inserted into the hole. The insert nut 53 provides an internal thread portion to the bracket 51.
As shown in FIGS. 1 and 3, when attaching the lid frame 9, screws 55, 55 as fixing members pass through the through holes 33 of the lid frame 9, and the brackets 51 of the end caps 5, 5. 51 is inserted into the insert nuts 53, 53.

  In addition, a through hole 57 is provided in one of the end caps 5 and passes through the through hole 57 so as to prevent operation buttons and lamps (not shown) attached to the through holes 31 and 31 of the lid frame 9. Wiring is performed.

Next, the assembly of the switch box 1 according to the present embodiment will be described with reference to FIGS.
First, as shown in FIG. 3, the end caps 5 are engaged with both ends in the length direction of the main body frame 7. That is, as shown in FIG. 2, the end cap 5 includes the guide recesses 45 and 45 of the end cap 5, the guide protrusions 19 and 19 of the body frame 7, and the guide recess 49 of the end cap 5. 49 and the guide protrusions 24 and 24 of the main body frame 7 while being guided from both ends in the longitudinal direction of the main body frame, and the guide concave portions 45 and 45 of the end cap 5 and the guide of the main body frame 7 The guide convex portions 19, 19 and the guide concave portions 49, 49 of the end cap 5 are engaged with the guide convex portions 24, 24 of the main body frame 7, and the engaging claw 39 of the end cap 5 is connected to the main body frame. 7 is engaged with the engagement hole 15. At this time, the end cap 5 is slightly lifted and pushed into the main body frame 7, and both the guide recess 45 and the end cap side engaging portion 47 have end portions on the main body frame 7 side. Since the notch is provided with a relief portion, the end cap 5 can be slightly lifted.

  Thereafter, as shown in FIGS. 1 and 3, the lid frame 9 is engaged with the main body frame 7 by engaging the engagement recess 29 of the lid frame 9 with the main body frame side engagement plate 23 of the main body frame 7. Let Then, the screws 55 and 55 are passed through the through holes 33 and 33 of the lid frame 9 and screwed into the insert nuts 53 and 53 attached to the brackets 51 and 51 of the end cap 5. Thereby, as shown in FIG. 1, the lid frame 9 is fixed to the end caps 5 and 5 so as to close a space surrounded by the end caps 5 and 5 and the main body frame 7, and the switch box 1 is completed.

  Further, when maintaining or inspecting a switch (not shown) and an electrical wiring housed in the switch box 1, the two screws 55 and 55 are removed, and only the lid frame 9 is removed. In this state, maintenance and inspection of the switch and electric wiring are performed, and the lid frame 9 is fixed to the end caps 5 and 5 again by the two screws 55 and 55.

As mentioned above, according to the switch box by this Embodiment, there can exist the following effects.
First, only the cover frame 9 can be easily removed by simply removing the screws 55 and 55 without removing the pair of end caps 5 and 5. Therefore, the switch and wiring in the switch box 1 can be repaired, and the operation buttons and lamps attached to the switch box 1 can be easily replaced. Further, the switch box 1 can be assembled simply by engaging the end caps 5, 5 with both ends of the main body frame 7 and fixing the lid frame 9 to the end caps 5, 5 with screws 55, 55. Therefore, assembly is easy.
Further, when attaching / detaching the lid frame 9, only two screws 55, 55 need be removed or screwed in, so that the operation is greatly facilitated.
Incidentally, only two screws 55, 55 are required. First, the pair of end caps 5, 5 are attached and fixed to the main body frame 7 by the engagement structure, and the lid frame is attached to the main body frame 7. This is because 9 is configured to be mounted and fixed by the engagement structure, and a sufficiently strong mounting and fixing state can be obtained even by screwing with a small number of screws.

Further, when the end caps 5 and 5 are engaged with both ends of the main body frame 7, the guide recess 45 and the end cap side engaging portion 47 of the end cap 5 are provided with relief portions, so that the end cap The caps 5 and 5 can be slightly lifted, and the end cap 5 can be moved without causing the engaging claw 39 provided on the end cap 5 to interfere with the main body frame 7. Therefore, the end caps 5 and 5 can be easily attached to the main body frame 7.
The guide portion formed by the guide recess 45 and the guide protrusion 19 guides the end cap 5 in the vertical direction, and the guide portion formed by the guide recess 49 and the guide protrusion 24 supports the end cap 5. It is configured to guide laterally. Therefore, even if an external force is applied to the main body frame 7 from the vertical direction or the horizontal direction, the entire force including the end cap 5 can be resisted, thereby maintaining the soundness of the main body frame 7. it can.

The present invention is not limited to the one embodiment.
For example, there may be a case where an engaging claw is provided on the main body frame side and an engaging hole is provided on the end cap side for engaging the engaging claw.
It is also conceivable to form the female thread directly on the end cap without using an insert nut.
It is also conceivable to provide a female screw portion on the main body frame side and screw the lid frame to this.
It is also conceivable that the guide convex portion is provided on the end cap side and the guide concave portion is provided on the main body frame side.
In addition, the end cap or the frame may be provided with an attachment portion (reference numeral 61 shown by an imaginary line in FIG. 7) provided with a hole through which a screw or the like for attaching the switch box to the pillar is provided. There may be a case where a member / part for engaging with a mounting member attached in advance is provided.
Various shapes and dimensions of each member can be considered.

  The present invention relates to, for example, a switch box equipped with operation buttons, lamps, and the like, and more particularly, to a device that is devised so that the lid frame can be easily attached and detached and can be easily assembled. Suitable for switch boxes used in lines and the like.

DESCRIPTION OF SYMBOLS 1 Switch box 3 Frame 5 End cap 7 Main body frame 9 Lid frame 15 Engagement hole 19 Guide convex part 24 Guide convex part 39 Engagement claw 45 Guide concave part 49 Guide concave part 53 Insert nut 55 Screw

Claims (6)

A frame composed of a main body frame and a lid frame, and a pair of end caps attached to both ends of the frame,
The pair of end caps are engaged and arranged at both ends of the main body frame,
The lid frame is installed so as to close a space surrounded by the main body frame and the pair of end caps in a state where the pair of end caps are engaged and disposed at both ends of the main body frame. Is detachably attached to the pair of end caps or the main body frame,
A switch box characterized in that by removing the fixing member, only the lid frame can be attached and detached without removing the pair of end caps. The switch box according to claim 1,
The switch box, wherein the lid frame is detachably attached to the pair of end caps by the fixing member. In the switch box according to claim 1 or 2,
Either one of the end cap and the main body frame is provided with an engaging claw, and the other end of the end cap and the main body frame is engaged with the engaging claw. A switch box characterized in that is provided. In the switch box according to any one of claims 1 to 3,
One of the end cap and the main body frame is provided with a guide convex portion, and one of the end cap and the main body frame is movably engaged with the guide convex portion. A switch box characterized in that a recess for guiding is provided. The switch box according to claim 4,
2. A switch box comprising two types of guide portions each including the guide convex portion and the guide concave portion, wherein each guide portion guides in two different directions orthogonal to each other. The switch box according to claim 4,
Either one of the end cap and the main body frame is provided with an engaging claw, and the other end of the end cap and the main body frame is engaged with the engaging claw. Is provided,
When the end cap is engaged with the main body frame and the engaging claw is engaged with the engaging hole, the guide cap is used to prevent interference between the engaging claw and the main body frame. A switch box characterized in that a relief is provided in the recess.

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