Mounting unit and node unit

Abstract

To provide a mounting unit for facilitating the attaching / detaching operation of a node unit to / from a wall surface.SOLUTION: The mounting unit mounts a structure on a rail member 11 provided on a wall surface 10. The mounting unit includes the detachable unit 6 that is attached to the overhang portion 53 overhanging from the outer edge of the structure when viewed along the first direction perpendicular to the wall surface 10 and is attachable to and detachable from the rail member 11, and at least two facing portions 72 that are attached to the overhang portion 53, protrude toward the wall surface 10 from the overhang portion 53, face the wall surface 10, and are formed of resin. They are provided on both sides sandwiching the detachable unit 6.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a mounting unit and a node unit. [Background technology]

[0002] In some cases, a structure is attached to a rail member (such as a DIN rail) fixed to a wall surface via a mounting unit. If the structure attached to the rail member is larger than the rail member in both vertical and horizontal directions, the structure will be prone to shaking up and down.

[0003] Patent Document 1 discloses a configuration in which an adapter and auxiliary fittings are provided as a mounting unit on the back of a structure. The structure is attached to a rail member by the adapter. Furthermore, the auxiliary fittings provided on the back of the structure abut against the wall surface, thereby suppressing vibration of the structure. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6000090 Summary of the Invention [Problem to be solved by the invention]

[0005] The mounting unit disclosed in Patent Document 1 has adapters and auxiliary fittings on the back of the structure, which makes it difficult to access the adapters and auxiliary fittings after the structure is attached to the rail member, making it difficult to perform attachment and detachment operations.

[0006] An object of the present invention is to provide a mounting unit that can be easily attached to and detached from a wall surface of a structure. [Means for solving the problem]

[0007] The mounting unit of the present invention is a mounting unit for mounting a structure to a rail member provided on a wall surface, and comprises: a detachable unit that is attached to a protruding portion that protrudes from the outer edge of the structure when viewed along a first direction perpendicular to the wall surface and is detachable from the rail member; and at least two opposing portions that are attached to the protruding portion, protrude toward the wall surface beyond the protruding portion, and face the wall surface, and are formed of resin; the detachable unit has a resin portion that provides insulation between the rail member and the protruding portion, and the opposing portions are arranged side by side along the outer edge and on both sides of the detachable unit. [Effects of the Invention]

[0008] According to the present invention, it is possible to obtain an attachment unit that can be easily attached to and detached from the wall surface of a structure. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view showing a state in which a node unit according to the first embodiment is installed in a control panel. [Figure 2] 1 is a side view showing a state in which a node unit according to a first embodiment is installed in a control panel. FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 2 is an exploded perspective view of the vibration suppression unit. DETAILED DESCRIPTION OF THE INVENTION

[0010] An attachment unit and a node unit according to an embodiment of the present invention will be described in detail below with reference to the drawings. Note that the present invention is not limited to the embodiment described below.

[0011] [Embodiment 1] <Schematic configuration of node unit> FIG. 1 is a perspective view showing a state in which a node unit according to embodiment 1 is installed in a control panel. FIG. 2 is a side view showing a state in which a node unit according to embodiment 1 is installed in a control panel. The node unit 1 includes an attachment unit 2 and a module unit 4. The attachment unit 2 and the module unit 4 are an example of a structure attached to a rail member 11 fixed to a wall surface 10 inside the control panel. Various machines and devices (not shown) are connected to the node unit 1. The node unit 1 includes a module unit 4, such as a PLC (Programmable Logic Controller) or a DCS (Distributed Control System), and controls the various machines and devices connected thereto.

[0012] <Mounting unit> FIG. 3 is a perspective view of the mounting unit. FIG. 4 is a side view of the mounting unit. The mounting unit 2 holds the module unit 4 and is mounted to a wall surface 10. Specifically, the mounting unit 2 is mounted to a rail member 11 fixed to the wall surface 10. The rail member 11 is, for example, a DIN rail. In addition to the mounting unit 2, FIG. 4 also illustrates the wall surface 10 and the rail member 11. The mounting unit 2 includes a base 5, a detachable unit 6, and a vibration suppression unit 7.

[0013] 5 is an exploded perspective view of the mounting unit. The base 5 is made of metal. The base 5 has a mounting surface 51 that is rectangular in shape when viewed from the front. In the first embodiment, an example is shown in which the long sides of the rectangle forming the mounting surface 51 extend horizontally and the short sides extend vertically, but this is not limited to this. The short sides may extend horizontally and the long sides may extend vertically, or the mounting surface 51 may be square.

[0014] Here, a Y-axis extending perpendicular to the mounting surface 51 is defined. An X-axis extending parallel to the mounting surface 51 and parallel to the long sides of the rectangle forming the mounting surface 51 is defined. A Z-axis extending parallel to the mounting surface 51 and parallel to the long sides of the rectangle forming the mounting surface 51 is defined. The positive direction along the Y-axis is the back direction, and the negative direction is the front direction. The positive direction along the X-axis is the right direction, and the negative direction is the left direction. The positive direction along the Z-axis is the upper direction, and the negative direction is the lower direction. The direction along the Y-axis is the first direction.

[0015] A substrate 51a is provided on the mounting surface 51. A plurality of connectors 51b are provided on the substrate 51a and aligned in the left-right direction. The connectors 51b are connected to connectors (not shown) formed on the module unit 4. The base 5 is formed with a holding structure for holding the module unit 4 connected to the connectors 51b, but detailed illustrations and explanations thereof are omitted.

[0016] The base 5 is formed with a wall portion 52 that extends from the outer edge of the mounting surface 51 toward the front side and surrounds the periphery of the mounting surface 51. The base 5 is formed with a protruding portion 53 that protrudes from the outer edge of the mounting surface 51 when viewed from the front. Note that the front view refers to a state in which the object is viewed in a direction perpendicular to the mounting surface 51, i.e., along the Y axis (first direction).

[0017] The protruding portion 53 is formed to protrude from the front end of the wall portion 52, i.e., the tip of the wall portion 52. Therefore, the protruding portion 53 is formed on the front side of the mounting surface 51. The protruding portion 53 is formed to protrude from the short sides of the rectangular mounting surface 51. In other words, the protruding portion 53 is formed to protrude on both the left and right sides from the mounting surface 51 when viewed from the front.

[0018] <Detachable unit> As shown in Fig. 4, the detachable unit 6 is attached to the protruding portion 53. Fig. 6 is an exploded perspective view of the detachable unit. The detachable unit 6 includes an attachment 61, a spacer (resin part) 62, a collar 63, and a fastening member 64.

[0019] The attachment 61 is attached to the rear side of the overhanging portion 53. The attachment 61 has a base 61a. Two claws 61b are provided on the base 61a. The two claws 61b are operable so that the distance between them can be changed. When the two claws 61b are close to each other, they clamp the rail member 11 to fix the attachment 61 to the rail member 11. When the two claws 61b are far from each other, they do not clamp the rail member 11, making it possible to attach and detach the attachment 61 to and from the rail member 11. If a biasing force is applied to the two claws 61b in directions that bring them closer to each other, the two claws 61b can be operated by pressing the base 61a against the rail member 11 or pulling the base 61a away from the rail member 11, thereby attaching and detaching the attachment 61 to and from the rail member 11.

[0020] The base 61a is formed with an insertion hole 61c into which a fastening member 64 is inserted. For example, the fastening member 64 is a screw, and the insertion hole 61c is a threaded hole. When the fastening member 64 is inserted into the insertion hole 61c to a certain length, the movement of the two claw portions 61b is restricted. Therefore, when the fastening member 64 is inserted into the insertion hole 61c with the two claw portions 61b sandwiching the rail member 11, the movement of the claw portions 61b in the direction away from each other is restricted, and the attachment 61 cannot be pulled away from the rail member 11 and removed. The base 61a and the claw portions 61b are formed of, for example, metal. Because the base 61a and the claw portions 61b are formed of metal, the rigidity of the attachment 61 is improved, and the attachment 61 can be firmly fixed to the rail member 11.

[0021] The spacer 62 is sandwiched between the protruding portion 53 and the attachment 61. The spacer 62 is made of insulating resin. The spacer 62 has a through hole 62a formed therein, through which a fastening member 64 passes.

[0022] The collar 63 is a so-called washer formed in an annular shape. The collar 63 is made of insulating resin. The collar 63 is provided on the front side of the protruding portion 53.

[0023] The fastening member 64 is a member that fixes the attachment 61 and the spacer 62 to the overhanging portion 53. The fastening member 64 is, for example, a screw having a head 64a and a shank 64b. A screw thread is formed on the shank 64b. The shank 64b is inserted into the collar 63, a through hole formed in the overhanging portion 53, a through hole 62a formed in the spacer 62, and an insertion hole 61c formed in the base 61a of the attachment 61. Furthermore, by screwing the shank 64b into the insertion hole 61c, the attachment 61 and the spacer 62 are fixed to the inner side of the overhanging portion 53. The above-mentioned collar 63 is sandwiched between the head 64a of the fastening member 64 and the overhanging portion 53.

[0024] With the attachment 61 fixed to the protruding portion 53, the attachment 61 is fixed to the rail member 11, whereby the base 5 is fixed to the wall surface 10.

[0025] <Vibration suppression unit> As shown in FIGS. 3 and 4, the vibration suppression unit 7 is attached to the overhanging portion 53. FIG. 7 is an exploded perspective view of the vibration suppression unit. The vibration suppression unit 7 has a bracket 71 attached to the overhanging portion 53. The bracket 71 has a fixing portion 71a that is fixed to the overhanging portion 53 using a screw or the like, and an extending portion 71b that extends from the fixing portion 71a toward the rear (toward the wall surface 10). A notch 71c is formed in the fixing portion 71a so as not to overlap with a head 64a of a fastening member 64 that secures the attachment 61 or the like to the overhanging portion 53. The extending portions 71b are formed in two locations along the short side that is the outer edge of the mounting surface 51 in a front view so as to sandwich the detachable unit 6 therebetween.

[0026] The vibration suppression unit 7 has opposing portions 72 attached to the tip of each of the extension portions 71b. The opposing portions 72 protrude further toward the wall surface 10 than the overhanging portions 53 and face the wall surface 10. The opposing portions 72 are formed of insulating resin. By being provided at the tip of the extension portions 71b, the opposing portions 72 are aligned along the short side that is the outer edge of the mounting surface 51 in a front view and are provided so as to sandwich the detachable unit 6. The opposing portions 72 may be attached to the extension portions 71b by adhesive or by using fastening members such as screws.

[0027] 3 and 4, when the base 5 is fixed to the rail member 11 by the detachable unit 6, the distance D2 between the protruding portion 53 and the end face of the facing portion 72 is smaller than the distance D1 between the protruding portion 53 and the wall surface 10. Therefore, a gap is formed between the facing portion 72 and the wall surface 10.

[0028] <Module unit> The module unit 4 is a control device exemplified by a PLC (Programmable Logic Controller) or a DCS (Distributed Control System). The module unit 4 is configured to have a plurality of modules such as a power supply unit 41 and a CPU unit 42. The plurality of modules that the module unit 4 has are held aligned in the left-right direction on a mounting surface 51 of the base 5. While held on the mounting surface 51, a connector (not shown) provided on each module is connected to a connector 51b provided on the mounting surface 51.

[0029] <Effects> In the node unit 1 described above, the attachment / detachment unit 6 and vibration suppression unit 7 for attachment to the rail member 11 are provided on the protruding portion 53 that protrudes from the outer edge of the attachment surface 51, rather than on the back side of the attachment surface 51. This makes it easier to access the attachment / detachment unit when attaching or detaching the node unit 1 to or from the rail member 11, improving the workability of the attachment / detachment work.

[0030] The attachment 61 is firmly fixed to the rail member 11 by a metal attachment. Meanwhile, a spacer made of resin is interposed between the attachment 61 and the protruding portion 53 of the base 5. Therefore, the wall surface 10, the rail member 11, and the base 5 are insulated from each other. Furthermore, the facing portion 72, which extends from the protruding portion 53 toward the rear and faces the wall surface 10, is made of resin. Therefore, even when the facing portion 72 abuts against the wall surface 10, the wall surface 10 and the base 5 are insulated from each other. Furthermore, the collar 63, which is sandwiched between the head 64a of the fastening member 64 and the protruding portion 53, is made of insulating resin. Therefore, electrical conduction between the rail member 11 and the base 5 via the fastening member 64 is prevented. This allows the node unit 1 to be installed using a single-point grounding method, thereby reducing the impact of noise on the module unit 4.

[0031] The spacer 62 that insulates the attachment 61 from the protruding portion 53 may not be formed separately from the attachment 61, but may be formed as a resin portion that covers the attachment 61, for example.

[0032] Furthermore, in the vibration suppression unit 7, the facing portion 72, which is provided along the short side of the mounting surface 51 so as to sandwich the detachable unit 6, faces the wall surface 10. Therefore, when the node unit 1 vibrates up and down, the facing portion 72 abuts against the wall surface 10, reducing the amplitude of vibration of the node unit 1. In other words, the vibration suppression unit 7 suppresses vibration of the node unit 1. Furthermore, as described above, the facing portion 72 is formed from resin, so the insulation of the node unit 1 is maintained even when the facing portion 72 abuts against the wall surface 10. Note that, from the perspective of insulation when the facing portion 72 abuts against the wall surface 10, if the facing portion 72 is attached to the extension portion 71b with a metal fastening member such as a screw, it is desirable that the fastening member be screwed in from the front side so that the fastening member is not exposed on the end surface of the facing portion 72 facing the wall surface 10.

[0033] Furthermore, because the vibration suppression unit 7 is formed separately from the detachable unit 6, it is possible to attach the detachable unit 6 without attaching the vibration suppression unit 7 to the protruding portion 53. Therefore, the node unit 1 can be fixed to the rail member 11 with the vibration suppression unit 7 not attached, and then the vibration suppression unit 7 can be attached to the protruding portion 53. With the vibration suppression unit 7 not attached, the detachable unit 6 is also easy to see and to access, which improves the workability when fixing the node unit 1 to the rail member 11.

[0034] Furthermore, with the vibration suppression unit 7 attached to the overhanging portion 53, a gap is formed between the facing portion 72 and the wall surface 10. Therefore, when the node unit 1 is fixed to the rail member 11 and then the vibration suppression unit 7 is attached later, it is no longer necessary to insert the extending portion 71b and the facing portion 72 in a manner that pushes apart the gap between the overhanging portion 53 and the wall surface 10. This improves the workability when attaching the vibration suppression unit 7 later.

[0035] Furthermore, because the bracket 71 of the vibration suppression unit 7 that is fixed to the overhanging portion 53 is made of metal, cracks and breakage are unlikely to occur even when the bracket 71 is fastened to the overhanging portion 53 with screws. Note that, as long as the strength of the bracket 71 is sufficiently ensured, the bracket 71 may also be made of resin, and in that case the bracket 71 and the opposing portion 72 may be formed integrally.

[0036] Furthermore, the overhanging portion 53 is formed closer to the front than the mounting surface 51, i.e., the overhanging portion 53 is formed at a position farther from the wall surface 10 than the mounting surface 51. This widens the gap between the overhanging portion 53 and the wall surface 10, and the gap between the mounting surface 51 and the wall surface 10. Therefore, compared to when a spacer for insulation is provided between the mounting surface and the wall surface, providing the spacer 62 between the overhanging portion 53 and the attachment 61 can reduce the amount of protrusion of the mounting unit 2 (node ​​unit 1) from the wall surface 10 toward the front. This makes it possible to reduce the installation space for the node unit 1 within the control panel.

[0037] <About the structure> Although a structure in which a module unit 4 is attached to the mounting surface 51 of the base 5 has been exemplified as a structure to be attached to the rail member 11, the present invention is not limited to this. For example, a box-shaped structure that is not separated into the base 5 and the module unit 4 may be attached directly to the rail member 11. In this case, it is sufficient if a protruding portion is formed so as to protrude from the outer edge of the box-shaped structure. Even with such a structure, if it is larger in the vertical direction than the rail member 11, it is possible to achieve the effect of suppressing vibration of the structure by attaching it using the mounting unit 2.

[0038] <Other> Some examples of combinations of the disclosed technical features are set out below.

[0039] (1) A mounting unit for attaching a structure to a rail member provided on a wall surface, the mounting unit comprising: a detachable unit attached to a protruding portion that protrudes from the outer edge of the structure when viewed along a first direction perpendicular to the wall surface and that is detachable from the rail member; and at least two opposing portions formed of resin that are attached to the protruding portion, protrude toward the wall surface beyond the protruding portion, and face the wall surface; the detachable unit having a resin portion that insulates between the rail member and the protruding portion, and the opposing portions are arranged side by side along the outer edge and are provided on both sides of the detachable unit.

[0040] (2) An attachment unit as described in (1) above, further comprising a bracket to which at least two of the opposing portions are fixed, and the bracket is attached to the protrusion, thereby attaching at least two of the opposing portions to the protrusion.

[0041] (3) The mounting unit according to (2) above, wherein the bracket is made of metal.

[0042] (4) The mounting unit according to (2) above, wherein the bracket is made of resin and is integrally formed with the opposing portion.

[0043] (5) The mounting unit according to any one of (1) to (4) above, wherein a gap is formed between the opposing portion and the wall surface.

[0044] (6) The detachable unit is an attachment unit described in any one of (1) to (5) above, which has an attachment fixed to the rail member, a spacer sandwiched between the attachment and the protrusion to form the resin part, and a fastening part that fastens the attachment and the protrusion while the spacer is sandwiched between them.

[0045] (7) A node unit comprising: a mounting unit according to any one of (1) to (6) above; and a structure attached to the rail member by the mounting unit, the structure having a base having a mounting surface parallel to the wall surface and projecting from the outer edge of the mounting surface to form the protrusion; and a module unit attached to the mounting surface.

[0046] (8) The node unit according to (7) above, wherein the protruding portion is formed at a position farther from the wall surface than the mounting surface. [Explanation of symbols]

[0047] 1 node unit 2 Mounting Unit 4 module units 41 Power supply unit 42 CPU units 5. Bass 51 Mounting surface 51a board 51b connector 52 Wall 53 Overhang 6 Detachable unit 61 Attachment 61a base 61b Claw part 61c Insertion hole 62 Spacer 62a through hole 63 Color 64 Fastening members 64a head 64b Shaft 7 Vibration suppression unit 71 Bracket 71a Fixed part 71b Extension 71c notch 72 Opposing part 10 Wall 11 Rail components

Claims

1. A mounting unit for mounting a structure to a rail member provided on a wall surface, a detachable unit attached to a protruding portion that protrudes from an outer edge of the structure when viewed along a first direction perpendicular to the wall surface, and that is detachable from the rail member; at least two opposing portions attached to the protruding portion, protruding further toward the wall surface than the protruding portion and opposing the wall surface, and formed of resin; the detachable unit has a resin portion that insulates between the rail member and the protruding portion, The opposing portions are arranged side by side along the outer edge and are attached to both sides of the detachable unit.

2. The at least two opposing portions are fixed to a bracket, The mounting unit according to claim 1 , wherein the bracket is attached to the protruding portion, thereby attaching at least two of the opposing portions to the protruding portion.

3. The mounting unit according to claim 2 , wherein the bracket is made of metal.

4. The mounting unit according to claim 2 , wherein the bracket is made of resin and is integrally formed with the opposing portion.

5. The mounting unit according to claim 1 , wherein a gap is formed between the opposing portion and the wall surface.

6. The detachable unit includes: an attachment fixed to the rail member; a spacer that is sandwiched between the attachment and the protruding portion and serves as the resin portion; The mounting unit according to claim 1 , further comprising a fastening portion that fastens the attachment and the protruding portion together with the spacer sandwiched therebetween.

7. A mounting unit according to any one of claims 1 to 6; a structure attached to the rail member by the mounting unit, The structure is a node unit having a base with a mounting surface parallel to the wall surface and with the protrusion extending from the outer edge of the mounting surface, and a module unit attached to the mounting surface.

8. The node unit according to claim 7 , wherein the protruding portion is formed at a position farther from the wall surface than the mounting surface.

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