Control device

Abstract

A control device (10): comprises a box-shaped case (21) having an opening (24o) which opens in one horizontal direction, and a flat plate-shaped attachment member (52) attached to an inner surface (23) of the peripheral walls which surround the opening (24o) of the case (21); and comprises a first inclined surface and a second inclined surface which are provided with a gap therebetween in the depth direction of the inner surface (23). The first inclined surface is disposed in a rear side region of the inner surface (23) and is gradually inclined in a direction away from the inner surface (23) toward the opening (24o). The second inclined surface is disposed in an opening (24o)-side region of the inner surface (23) and is gradually inclined in a direction away from the inner surface (23) toward the rear side. The attachment member (52) comprises: a pressed part capable of being pressed against the first inclined surface; and a fixed part capable of being fixed to the second inclined surface in a state in which the pressing part is pressed against the first inclined surface.

Description

control device

[0001] The present disclosure relates to a control device.

[0002] A mounting mechanism is known in which a support plate member carrying electronic components is inserted through the opening of a box-shaped box device, the rear side of the support plate member is pressed against a groove in the device where it is to be mounted, and the front side is fixed with a bolt (see, for example, Patent Document 1).

[0003] Japanese Patent Application Laid-Open No. 2022-127160

[0004] In the case of the above-described mounting mechanism, when fastening the front side of the support plate member with bolts, it is necessary to use a tool to access the top surface of the support plate member from the outside. However, because the top surface of the support plate member contains not only the electronic components mounted on the support plate member but also the peripheral wall of the box device that houses the support plate member, it is difficult to secure a sufficient working space, resulting in poor work efficiency.

[0005] Therefore, it is desirable to improve the efficiency of work when installing a flat plate-shaped member inside a box-shaped housing in which the direction of access to the interior is limited.

[0006] One aspect of the present disclosure is a control device comprising: a box-shaped case having an opening that opens in one horizontal direction; and a flat mounting member attached to the inner surface of a peripheral wall surrounding the opening of the case; a first inclined surface and a second inclined surface spaced apart in the depth direction of the inner surface; the first inclined surface is located in a region on the inner surface closer to the opening and gradually inclined away from the inner surface toward the opening; the second inclined surface is located in a region on the inner surface closer to the opening and gradually inclined away from the inner surface toward the depth; and the mounting member comprises a pressing portion that can be pressed against the first inclined surface and a fixing portion that can be fixed to the second inclined surface when the pressing portion is pressed against the first inclined surface.

[0007] 5 is a perspective view showing the configuration of a control device according to an embodiment of the present disclosure. FIG. 1 is a perspective view showing the inner side surface of a storage section in the control device shown in FIG. 1. FIG. 2 is a perspective view showing a pressed member provided in the control device shown in FIG. 1. FIG. 3 is a perspective view showing a fixed member provided in the control device shown in FIG. 1. FIG. 4 is a diagram illustrating a state in which a second attachment unit is attached to the inner side surface of a storage section in the control device shown in FIG. 1. FIG. 5 is a cross-sectional view of the second attachment unit in the state shown in FIG. 5. FIG. 6 is a diagram illustrating a method for attaching the second attachment unit shown in FIG. 5. FIG. 7 is a diagram illustrating a method for attaching the second attachment unit shown in FIG. 5. FIG. 8 is a diagram illustrating modified examples of a support plate and a fixed section provided in the control device shown in FIG. 1.

[0008] A control device 10 according to an embodiment of the present disclosure will be described below with reference to the drawings. The control device 10 is a control device that controls industrial machinery such as a robot (not shown). As shown in FIG. 1 , the control device 10 includes a housing 20 and a plurality of mounting units 30 that are housed within the housing 20 and that mount electronic components necessary for controlling the industrial machinery.

[0009] The housing 20 includes a storage section (case) 21 formed into a roughly rectangular box shape by combining flat plates made of metal such as steel, and a door section 25. The inside of the storage section 21 is provided with a rear surface 22, two side surfaces, a bottom surface, and a top surface that are positioned around the periphery of the rear surface 22 and are perpendicular to the rear surface 22. Hereinafter, these two side surfaces, the bottom surface, and the top surface will be collectively referred to as the inner surfaces 23. Furthermore, on the opposite side of the storage section 21 from the rear surface 22, an opening surface 24 is provided that includes an opening 24o defined by the edge of the inner surface 23. In other words, the storage section 21 has a roughly rectangular internal space defined by the rear surface 22, the four inner surfaces 23, and the opening surface 24.

[0010] In addition, a pressed member 60 and a fixed member 70 are detachably attached to at least one of the four inner surfaces 23. In the example shown in Fig. 1, when the housing 20 is installed on a horizontal floor surface with the opening surface 24 facing horizontally, the pressed member 60 and the fixed member 70 are attached to a pair of inner surfaces 23 that rise in the vertical direction, respectively.

[0011] The following is a specific description of one of the pair of vertically rising inner surfaces 23. As shown in Fig. 2, two pressed members 60 are detachably attached to the area of ​​the inner surface 23 on the rear surface 22 side at a predetermined distance in the vertical direction, each of which is secured by two fixing members B1 such as screws. Also, one fixed member 70 is detachably attached to the area of ​​the inner surface 23 on the opening surface 24 side by two fixing members B2 such as screws.

[0012] The pressed member 60 is, for example, a member obtained by bending a metal flat plate formed into a strip shape at a midpoint in the longitudinal direction, as shown in Fig. 3. The pressed member 60 has a base 61 provided with two through holes 61h for passing the fixing member B1 therethrough, and a sloped portion 63 that forms a sloped surface (first sloped surface) 62 on the outer corner side, which is inclined at approximately 45° with respect to the base 61.

[0013] 4, the fixed member 70 is a member obtained by bending a band-shaped metal flat plate at a midpoint in the width direction. The fixed member 70 includes a base 71 having two through holes 71h for passing the fixing member B2 therethrough, and a sloped portion 73 that forms a slope (second slope) 72 on the inner corner side that is inclined at approximately 45° with respect to the base 71. The sloped portion 73 also has two screw holes 73h for fixing the mounting unit 30, which will be described later.

[0014] The door unit 25 has a rectangular lid shape and is attached to the storage unit 21 so as to be able to open and close the opening 24o. For example, as shown in Fig. 1, the door unit 25 is attached by a pair of hinges H so as to form a single-wing door with one of the four edges that define the opening 24o of the storage unit 21, the edge extending in the vertical direction, as a fulcrum.

[0015] 1, the mounting unit 30 includes a first mounting unit 40 that is detachably fixed to the inner surface 22 of the housing portion 21 by a screw B3. The mounting unit 30 also includes a second mounting unit 50 that is detachably fixed to the inner surface 23 that rises in the vertical direction.

[0016] 1 , the first mounting unit 40 includes a plurality of control boards 41 and a flat support plate 42 on which the control boards 41 are mounted. The support plate 42 has a plurality of through holes (not shown) formed therethrough in the plate thickness direction. The first mounting unit 40 is fixed to the rear surface 22 by orienting the surface opposite to the surface on which the control boards 41 are mounted toward the rear surface 22 and fastening screws B3 passed through the through holes in the support plate 42 into screw holes (not shown) provided in the rear surface 22.

[0017] The second mounting unit 50 includes a control board 51 and a flat support plate (mounting member) 52 that supports the control board 51. As shown in Figures 5 and 6, the support plate 52 includes a support surface 53 that supports the control board 51. One end of the support plate 52 is bent to form a surface parallel to the support surface 53 at a height offset from the support surface 53 on the opposite side of the control board 51. Furthermore, one end of the support plate 52 is formed with a notch 54 that is positioned and shaped to correspond to the pressed member 60 attached to the inner surface 23 of the accommodation section 21.

[0018] Each notch 54 is formed by cutting out a substantially rectangular edge on one end of the support plate 52, and is disposed at a distance corresponding to the distance between the two pressed members 60 attached to the inner surface 23 of the accommodation section 21. The width of each notch 54 is set slightly wider than the width of the base 61 of the pressed member 60. That is, a pair of side surfaces (guide surfaces) 54a is provided inside each notch 54, allowing the base 61 of the pressed member 60 to be accommodated with a slight gap on the outside in the width direction. Each notch 54 is also provided with a pressing portion 54b that is pressed against the inclined surface 62 when the base 61 of the corresponding pressed member 60 is disposed between the pair of side surfaces 54a, as shown in FIG. 6 .

[0019] Meanwhile, the other end of the support plate 52 is provided with a portion that protrudes outward along the support surface 53, and the tip of the portion is bent so as to be inclined at approximately 45° relative to the support surface 53 toward the opposite side from the control board 51. As a result, the other end of the support plate 52 is formed with a fixing surface (fixing portion) 55 that comes into close contact with the slope 72 of the fixed member 70 when the pressing portion 54b is pressed against the slope 62 of the pressed member 60, as shown in FIG. 6 . The fixing surface 55 is formed with a through hole 55h that penetrates through the plate thickness at a position corresponding to the screw hole 73h provided in the fixed member 70. That is, as shown in FIG. 6 , the fixing surface 55 of the support plate 52 is brought into close contact with the slope 72 of the fixed member 70, and a screw B4 that has passed through the through hole 55h is fastened into the screw hole 73h, thereby fixing the support plate 52 to the fixed member 70.

[0020] The operation of the control device 10 according to this embodiment configured as described above will be described below. In the following, an example will be described in which the second mounting unit 50 is mounted inside the housing 20 of the control device 10.

[0021] First, as shown in Fig. 1, the housing 20 is placed on a horizontal workbench or the like with the opening surface 24 facing horizontally. Then, as shown in Fig. 2, two pressed members 60 and one fixed member 70 are attached in advance to the inner surface 23 of the storage section 21 that rises in the vertical direction using fixing members B1 and B2.

[0022] Next, as shown in FIG. 7 , the support plate 52 on which the control board 51 is mounted is inserted into the accommodation section 21 from the opening 24o toward the rear surface 22, with the one end provided with the notches 54 leading the way. The support plate 52 is then advanced so that the bases 61 of the pressed members 60 are positioned inside the corresponding notches 54 of the support plate 52. Furthermore, as shown in FIG. 8 , the support plate 52 is advanced while one end of the support plate 52 contacts the inner surface 23 and the side surfaces 54a of the notches 54 are aligned with the widthwise end surfaces of the bases 61. Then, with the pressing portions 54b in contact with the corresponding inclined surfaces 62, the fixing surface 55 is brought into close contact with the inclined surfaces 72 of the fixed member 70. In this state, screws B4 are inserted from the outside through the through holes 55h provided in the fixing surface 55 of the support plate 52 and fastened to the screw holes 73h of the fixed member 70 using a screwdriver T.

[0023] As a result, the fixing surface 55 of the support plate 52 is fixed from the outside in the vertical direction to the inclined surface 72 of the fixed member 70. In other words, the fastening force of the screw B4 can maintain the pressing portion 54b of the support plate 52 pressed between the inner surface 23 and the inclined surface 62 of the pressed member 60. Therefore, the inner surface 23 and the inclined surface 62 can more stably support the rear side of the support plate 52 attached to the inner surface 23 of the accommodation section 21.

[0024] As described above, in this embodiment, only the front side of the support plate 52, i.e., the side closest to the opening surface 24, is screwed, and it is not necessary to screw the portion of the support plate 52 that is located on the rear side of the storage section 21. Therefore, even if the rear side of the storage section 21 is occupied by the first mounting unit 40 attached to the rear surface 22 or the like, resulting in a narrow space, the support plate 52 can be easily attached.

[0025] 8, the screwdriver T used to tighten the screw B4 when fixing the fixing surface 55 to the sloped surface 72 can be accessed from the side of the opening surface 24. In other words, the support plate 52 can be fixed to the fixed member 70 by utilizing the large external space secured outside the opening surface 24, improving the workability of the installation work of the support plate 52.

[0026] Furthermore, in this embodiment, the distance between the pair of side surfaces 54a of the cutouts 54 of the support plate 52 is slightly larger than the width dimension of the base 61 of the pressed member 60. Therefore, when pressing the pressing portions 54b of the support plate 52 against the slope 62, the support plate 52 can be advanced so that the pair of side surfaces 54a in each cutout 54 are aligned with the end faces of the base 61 in the width direction. In other words, because the support plate 52 is guided by both side surfaces of the base 61 of the pressed member 60, the support plate 52 can be more easily positioned in the predetermined attachment position.

[0027] Furthermore, with the support plate 52 aligned with the mounting position of the inner surface 23 extending in the vertical direction, one of the pair of side surfaces 54a of the cutout 54, which is positioned above, can be hooked onto the base 61. In other words, since the rear side of the support plate 52 is supported against the direction of gravity, when mounting the support plate 52, it is only necessary to hold down the front side of the support plate 52 with one's hand, which has the advantage of further improving workability.

[0028] In this embodiment, the base 61 of the pressed member 60 supports the rear side of the support plate 52 against the direction of gravity, but in addition, the fixed member 70 may support the front side of the support plate 52. For example, as shown in Fig. 9, a cutout 56 may be formed on the front side of the support plate 52, and the base 71 of the fixed member 70 may be disposed inside the cutout 56, thereby fixing the fixing surface 55 and the inclined surface 72.

[0029] In this case, the width of the notch 56 is set slightly larger than the width of the fixed member 70, similar to the dimensional relationship between the notch 54 and the pressed member 60. This allows the fixing surface 55 of the support plate 52 to be fixed to the slope 72 of the fixed member 70 with the pair of side surfaces (support surfaces) 56a formed on the inside of the notch 56 positioned to sandwich the fixed member 70 from both sides in the width direction.

[0030] Therefore, when attaching the support plate 52 to the inner surface 23 extending in the vertical direction, the notches 54, 56 provided on both sides of the support plate 52 can be hooked onto the bases 61, 71 of the pressed member 60 and the fixed member 70, respectively. In other words, since the support plate 52 can be temporarily supported on the inner surface 23, the worker can temporarily release his or her hands from the support plate 52, which further improves the workability when attaching the support plate 52.

[0031] Furthermore, in this embodiment, the pressed member 60 and the fixed member 70 may be configured to be movable with respect to the inner surface 23. For example, if it is anticipated that the shape of the support plate 52 will change in accordance with a change in the specifications of the second mounting unit 50, screw holes for fixing the pressed member 60 and the fixed member 70 are provided in advance on the inner surface 23 based on that expectation. This has the advantage that even if a change in the shape of the support plate 52 is required, it is only necessary to change the attachment positions of the pressed member 60 and the fixed member 70 with respect to the inner surface 23, and no major changes to the shape of the accommodating section 21 are required.

[0032] Furthermore, in the present embodiment, the pressed member 60 and the fixed member 70 may be fixed in advance to the inner surface 23 by welding, adhesive, or the like. In this case, the worker who attaches the second mounting unit 50 to the inner surface 23 can omit the step of fixing the pressed member 60 and the fixed member 70 to the inner surface 23, thereby improving the manufacturability of the control device 10.

[0033] In this embodiment, the second mounting unit 50 is attached to a pair of vertically extending inner surfaces 23 inside the storage section 21 with the opening surface 24 facing horizontally. Alternatively, the second mounting unit 50 may be attached to either one of the pair of vertically extending inner surfaces 23. Alternatively, the above-described mounting mechanism can be applied even when the second mounting unit 50 is attached to at least one of the bottom surface and top surface that extend horizontally.

[0034] In addition, in this embodiment, two notches 54 are provided on one end side of the support plate 52, but the number of notches 54 and the corresponding pressed members 60 is not limited to this. For example, if the size of the support plate 52 is relatively small, it is also possible to provide one notch 54 and one corresponding pressed member 60, as shown in Figure 9.

[0035] Furthermore, in the present embodiment, the pair of side surfaces 54 a on the inside of the cutout 54 are used to guide the support plate 52 to the attachment position. Alternatively, one of the pair of side surfaces 54 a may be used to guide the support plate 52 to the attachment position. For example, if the width of the cutout 54 is made sufficiently larger than the width of the pressed member 60, the pressed member 60 can be easily introduced into the cutout 54, while the support plate 52 can be guided using one of the side surfaces 54 a.

[0036] Furthermore, in this embodiment, the notch 54 has a generally rectangular shape formed by cutting out one end of the support plate 52, but the shape of the notch 54 is not limited to this. For example, the opening width of the notch 54 may be formed so as to widen slightly outward. This makes it easier to guide the base 61 of the pressed member 60 inside the notch 54 of the support plate 52, making it easier to align the support plate 52 with the predetermined mounting position.

[0037] Although the embodiments of the present disclosure have been described in detail above, the present disclosure is not limited to the individual embodiments described above. Various additions, substitutions, modifications, partial deletions, etc. are possible to these embodiments without departing from the gist of the invention or the concept and spirit of the present invention derived from the content of the claims and their equivalents. For example, in the above-described embodiments, the order of each operation and the order of each process are shown as examples and are not limited to these.

[0038] The following supplementary notes are further disclosed regarding the above-described embodiment and modified examples: (Supplementary Note 1) A control device comprising: a box-shaped case having an opening that opens in one horizontal direction; and a flat mounting member attached to an inner surface of a peripheral wall of the case that surrounds the opening, the control device comprising a first inclined surface and a second inclined surface spaced apart in a depth direction of the inner surface, the first inclined surface being disposed in a region on the inner surface closer to the opening and gradually inclining away from the inner surface toward the opening, the second inclined surface being disposed in a region on the inner surface closer to the opening and gradually inclining away from the inner surface toward the depth, the mounting member comprising a pressing portion that can be pressed against the first inclined surface, and a fixing portion that can be fixed to the second inclined surface with the pressing portion pressed against the first inclined surface. (Supplementary Note 2) The control device according to Supplementary Note 1, wherein the first inclined surface is provided on a pressed member attached to the inner side surface, and the attachment member is provided with a guide surface along at least one end surface in the width direction of the pressed member that guides attachment of the attachment member to the inner side surface. (Supplementary Note 3) The control device according to Supplementary Note 2, wherein the guide surface is supported in contact with one end surface in the width direction of the pressed member when the fixing portion is aligned with the fixing position of the second inclined surface. (Supplementary Note 4) The control device according to Supplementary Note 3, wherein the inner side surface extends in the vertical direction, and the guide surface is supported in contact with an upper end surface of the pressed member. (Supplementary Note 5) The control device according to any of Supplementary Notes 2 to 4, wherein the guide surfaces are provided on both sides of the pressed member sandwiching it in the width direction. (Supplementary Note 6) The control device according to Supplementary Note 3, wherein the second inclined surface is provided on a fixed member attached to the inner surface, and the attachment member has a support surface that is supported in contact with one end surface in the width direction of the second inclined surface of the fixed member when the fixing portion is aligned with the fixing position of the second inclined surface. (Supplementary Note 7) The control device according to Supplementary Note 6, wherein the inner surface extends in the vertical direction, and the support surface is supported in contact with an upper end surface of the fixed member. (Supplementary Note 8) The control device according to Supplementary Note 6 or Supplementary Note 7, wherein the support surfaces are provided on both sides of the fixed member that sandwich it in the width direction. (Supplementary Note 9) The control device according to Supplementary Note 1, wherein the first inclined surface is provided on a pressed portion that is attached so as to be removably relative to the inner surface, and the second inclined surface is provided on a fixed portion that is attached so as to be removably relative to the inner surface.

[0039] REFERENCE SIGNS LIST 10 control device 21 storage section (case) 22 rear surface 23 inner surface 24o opening 52 support plate (mounting member) 54a side surface (guide surface) 54b pressing section 55 fixing surface (fixing section) 56a side surface (support surface) 60 pressed member 62 inclined surface (first inclined surface) 70 fixed member 72 inclined surface (second inclined surface)

Claims

1. A control device comprising: a box-shaped case having an opening that opens in one horizontal direction; and a flat mounting member attached to the inner surface of a peripheral wall surrounding the opening of the case; a first inclined surface and a second inclined surface spaced apart in the depth direction of the inner surface; the first inclined surface is located in a region on the inner surface closer to the opening and gradually inclined away from the inner surface toward the opening; the second inclined surface is located in a region on the inner surface closer to the opening and gradually inclined away from the inner surface toward the depth; and the mounting member comprising a pressing portion that can be pressed against the first inclined surface, and a fixing portion that can be fixed to the second inclined surface when the pressing portion is pressed against the first inclined surface.

2. A control device as described in claim 1, wherein the first inclined surface is provided on a pressed member attached to the inner surface, and the mounting member has a guide surface along at least one end face in the width direction of the pressed member that guides the mounting member to be attached to the inner surface.

3. The control device according to claim 2, wherein the guide surface is supported in contact with one end surface in the width direction of the pressed member when the fixed portion is aligned with the fixed position of the second inclined surface.

4. The control device according to claim 3, wherein the inner surface extends vertically, and the guide surface is supported in contact with the upper end surface of the pressed member.

5. A control device according to any one of claims 2 to 4, wherein the guide surfaces are provided on both sides of the pressed member in the width direction.

6. A control device as described in claim 3, wherein the second inclined surface is provided on a fixed member attached to the inner surface, and the attachment member has a support surface that is contacted and supported by one end surface in the width direction of the second inclined surface of the fixed member when the fixing portion is aligned with the fixing position of the second inclined surface.

7. The control device according to claim 6, wherein the inner surface extends vertically, and the support surface is supported in contact with the upper end surface of the fixed member.

8. A control device according to claim 6 or 7, wherein the support surfaces are provided on both sides of the fixed member in the width direction.

9. A control device as described in claim 1, wherein the first inclined surface is provided on a pressed portion that is removably attached to the inner surface, and the second inclined surface is provided on a fixed portion that is removably attached to the inner surface.

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