Rack mount device and rack device

Abstract

To easily adjust a height position of an inner rail provided in a housing of an electronic apparatus.SOLUTION: A rack mount device includes a housing 22 of an electronic device 21, and a pair of inner rails 26A and 26B that are members for mounting the housing on a rack and are fixed to a pair of side walls 122A and 122B of the housing along a Y-axis direction. On the side wall of the housing, a plurality of pin installation parts for installing pins 32 for fixing the inner rail are provided side by side in the Y-axis direction, and a pin installation portion has a first groove provided at a different height position. An engagement groove of the inner rail engages with the pin in a state where the pin is fitted into the first groove having the same height, whereby the inner rail is fixed to the side wall.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a rack mount device and a rack device. [Background technology]

[0002] Racks capable of mounting a plurality of electronic devices such as servers are known (see, for example, Patent Documents 1 to 3), and currently, 19-inch racks that comply with the EIA standard are mainstream.

[0003] When mounting a server in a rack, it is common to attach rails to the server's designated location and then attach the rails to the rack's support posts. These support posts have multiple holes along their height, so the rails are screwed into the holes at the location where you want to mount the server and nearby holes. In the case of racks that comply with EIA standards, the multiple holes are spaced at regular intervals called 1U (unit) (1U is 44.45 mm) along the height of the support posts.

[0004] From the viewpoint of space efficiency, it is preferable to minimize the gaps between the servers mounted on the rack.

[0005] To prevent servers from overheating, racks are equipped with fans that draw in outside air (cold air) from the front of the rack and expel heated air (hot air) from the rear. In this case, if the gaps between servers are too large, the hot air expelled from the rear may circulate through the gaps between the servers and return to the front, reducing cooling efficiency. Therefore, minimizing the gaps between servers is preferable from the perspective of increasing cooling efficiency. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-62323 [Patent Document 2] Special Publication No. 2003-523642 [Patent Document 3] Japanese Patent Application Laid-Open No. 2009-206420 Summary of the Invention [Problem to be solved by the invention]

[0007] If all servers mounted in an EIA-compliant rack are designed in U (unit) units, they can be mounted without gaps even if the rails are attached to the servers in fixed positions. However, when a server not designed in U units is mounted in an EIA-compliant rack, there is a risk of large gaps between adjacent servers if the rails are attached to the servers in fixed positions.

[0008] In one aspect, the present invention aims to provide a rack mount device that can easily adjust the height position of a rail member attached to the housing of an electronic device, and a rack device that can reduce the gap between multiple housings mounted thereon. [Means for solving the problem]

[0009] In one aspect, the rack mounting device comprises a housing for an electronic device and a member for mounting the housing to a rack, the member comprising a pair of rail members fixed to each of a pair of side walls of the housing along a first direction perpendicular to the height direction, and each of the pair of side walls of the housing has a plurality of installation sections arranged in the first direction for installing fixing devices for fixing the rail members, each of the plurality of installation sections having a plurality of mounting sections to which the fixing devices, each of which is provided at a different height position, can be attached, and when the fixing devices are attached to each of the mounting sections which are at the same height position of the plurality of installation sections, a plurality of engaging grooves provided on each of the rail members engage with the plurality of fixing devices provided on each of the side walls of the housing, thereby fixing each of the rail members to each of the side walls. [Effects of the Invention]

[0010] The rack mount device disclosed in this specification allows for easy adjustment of the height position of rail members attached to the housings of electronic devices, and also reduces the gap between multiple housings mounted on the rack device. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram schematically showing the configuration of a rack according to the first embodiment. [Figure 2] FIG. 2(a) is a diagram showing a schematic view of the electronic equipment unit, and FIG. 2(b) is a perspective view showing the electronic equipment unit (with some components omitted). [Figure 3] FIG. 3 is an exploded perspective view (part 1) showing the housing, the inner rail, and the pin unit. [Figure 4] FIG. 4(a) is an enlarged view of one of the plurality of pin installation portions, and FIG. 4(b) is an enlarged perspective view of one of the plurality of pins. [Figure 5] 5(a) and 5(b) are diagrams for explaining a method of fitting a pin into a pin installation portion. [Figure 6] FIG. 6(a) is an enlarged view of one of the engagement grooves, and FIG. 6(b) is a view for explaining a method for fixing the inner rail. [Figure 7] FIG. 7 is an exploded perspective view (part 2) showing the housing, the inner rail, and the pin unit. [Figure 8] 8(a) and 8(b) are diagrams for explaining an example in which the inner rail is fixed to the top of the housing. [Figure 9] 9(a) and 9(b) are diagrams for explaining an example in which the inner rail is fixed to the bottom of the housing. [Figure 10] 10(a) and 10(b) are diagrams for explaining an example in which the inner rail is fixed to the middle part of the housing. [Figure 11] 11(a) to 11(d) are diagrams showing examples of mounting electronic devices in units on a rack. [Figure 12] FIG. 12(a) is a diagram showing a comparative example, and FIG. 12(b) is a diagram for explaining the effects of the first embodiment. [Figure 13] FIG. 13 is an exploded perspective view showing a housing, an inner rail, and a pin unit according to the second embodiment. [Figure 14] FIG. 14(a) is an enlarged view of one of the multiple pin installation portions according to the second embodiment, and FIG. 14(b) is an enlarged view of one of the multiple engagement grooves according to the second embodiment. [Figure 15] 10 is a diagram (part 1) for explaining a method for fixing the inner rail to the housing in the second embodiment. FIG. [Figure 16] FIG. 10 is a diagram (part 2) for explaining a method for fixing the inner rail to the housing in the second embodiment. [Figure 17] 17(a) and 17(b) are diagrams for explaining a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0012] An embodiment will be described in detail below with reference to FIGS. 1 to 12(b).

[0013] Fig. 1 shows a schematic diagram of a rack 10 according to one embodiment. In Fig. 1, the height direction of the rack 10 is shown as the Z-axis direction, the width direction as the X-axis direction, and the depth direction as the Y-axis direction. The +Z direction is the upward direction, the -Z direction is the downward direction, the +X direction is the rightward direction, the -X direction is the leftward direction, the +Y direction is the backward direction, and the -Y direction is the forward direction.

[0014] The rack 10 is a rack that complies with the EIA (Electronic Industries Alliance) standard, and has a width of 19 inches (482.6 mm) and a height that is a multiple of 1.75 inches (44.45 mm). As shown in FIG. 1, the rack 10 includes a lower frame 11, an upper panel 12, a pair of left and right front columns 13A, 13B, and a pair of left and right rear columns 14A, 14B. The pair of rear columns 14A, 14B are located on the rear side (+Y side) of the pair of front columns 13A, 13B and are therefore not visible in FIG. 1. Wall members are provided on the left and right sides and the rear side of the rack 10, and a front door is provided on the front side, but these are not shown. The rack 10 may be provided without any of the wall members or the front door.

[0015] The front pillar 13A and the rear pillar 14A of the rack 10 are provided with rail mounting portions 15A1 to 15A at equal intervals along the height direction. 12 The front pillar 13B and the rear pillar 14B of the rack 10 are provided with rail mounting portions 15B1 to 15B at equal intervals along the height direction. 12 The rail mounting portions 15A1 to 15A 12 , 15B1~15B 12 are actually mounting holes provided in the pillars 13A, 13B, 14A, and 14B for mounting rail mechanisms 25A and 25B, which will be described later, but are shown in dashed frames in FIG. 1 for convenience of illustration.

[0016] An electronic equipment unit 20 such as that shown in Fig. 2(a) is mounted on the rack 10. The electronic equipment unit 20 will be described in detail below.

[0017] Fig. 2(a) is a diagram schematically illustrating the electronic device unit 20. Fig. 2(b) is a perspective view (with some components omitted) illustrating the electronic device unit 20. As shown in Fig. 2(a), the electronic device unit 20 includes an electronic device 21 and a pair of rail mechanisms 25A and 25B.

[0018] Electronic device 21 is a server or the like, and has a housing 22 and an internal component 23 provided within housing 22. Housing 22 is, for example, a box-shaped member made of metal. Internal component 23 includes a circuit board, electronic components, etc. for realizing the functions of electronic device 21 (server or the like).

[0019] 2(a), the rail mechanism 25A has an inner rail 26A as a rail member fixed to one of a pair of side walls (the left side wall 122A) of the housing 22, and an outer rail 27A that guides (slides) the inner rail 26A in the Y-axis direction. The inner rail 26A is fixed to the side wall 122A so as to extend along the Y-axis direction, i.e., so that its longitudinal direction coincides with the Y-axis direction.

[0020] The rail mechanism 25B has an inner rail 26B as a rail member fixed to the other of the pair of side walls (the right side wall 122B) of the housing 22, and an outer rail 27B that guides (slides) the inner rail 26B in the Y-axis direction. The inner rail 26B is fixed to the side wall 122B so as to extend along the Y-axis direction, i.e., so that the longitudinal direction is the Y-axis direction (a first direction perpendicular to the height direction) (see FIG. 2(b)).

[0021] When the electronic equipment unit 20 is mounted on the rack 10, the outer rail 27A is attached to the rail mounting portions 15A1 to 15A in FIG. 12 The outer rail 27B is fixed to one of the rail mounting portions (15B1 to 15B2) at the same height as the outer rail 27A. 12 Even if the outer rails 27A and 27B are fixed to the rack 10, the inner rails 26A and 26B slide in the Y-axis direction, so that the electronic device 21 can be pulled out to the outside of the rack 10.

[0022] Next, a method for fixing the inner rail 26B to the side wall 122B of the housing 22 will be described with reference to FIGS. 3 to 6(b).

[0023] FIG. 3 is an exploded perspective view showing a housing 22, an inner rail 26B, and a pin unit 30B used to fix the inner rail 26B to the housing 22. In FIG. 3, a state in which members (top surface members) forming the upper surface of the housing 22 are removed is shown.

[0024] On a side wall 122B on the right side (+X side) of the housing 22, a plurality (four in FIG. 3) of pin installation portions 124 as installation portions for fixtures are formed at predetermined intervals in the Y-axis direction. FIG. 4(a) is a diagram showing an enlarged view of one of the plurality of pin installation portions 124. The plurality of pin installation portions 124 each have the same shape.

[0025] As shown in FIG. 4(a), the pin installation portion 124 has a plurality (ten in FIG. 4(a)) of first grooves 126 extending in the Y-axis direction at different height positions (Z positions). The first groove 126 penetrates the side wall 122B. The pin installation portion 124 also has a second groove 128 extending in the height direction (Z-axis direction) and communicating with all the first grooves 126. The second groove 128 also penetrates the side wall 122B. The pin installation portion 124 has a comb-like shape as a whole.

[0026] Returning to FIG. 3, the pin unit 30B has a plurality (four in FIG. 3) of pins 32 as fixtures and a connecting member 34 that connects the plurality of pins 32 arranged in a row. The interval between the plurality of pins 32 coincides with the interval between the plurality of pin installation portions 124 (second grooves 128).

[0027] FIG. 4(b) is a diagram showing an enlarged view of one of the plurality of pins 32. The plurality of pins 32 each have the same shape. As shown in FIG. 4(b), the pin 32 has a shaft portion 31 extending so as to protrude in the X-axis direction and a tip portion 33 provided at one end of the shaft portion 31. When the diameter of the shaft portion 31 is a (first diameter) and the diameter of the tip portion 33 is b (second diameter), the width (width in the Z-axis direction) c of the first groove 126 shown in FIG. 4(a) satisfies a ≦ c < b. Also, the width (width in the Y-axis direction) d of the second groove 128 satisfies d > b.

[0028] A person (referred to as a user) who mounts the electronic device 21 on the rack 10 brings the pin unit 30B close to the side wall 122B from the inside (-X side) of the side wall 122B. As a result, as shown in FIG. 5(a), the tip 33 of the pin 32 passes through the second groove 128 of the pin installation portion 124. At this time, the pin 32 is allowed to move up and down within the second groove 128.

[0029] When the user moves the pin unit 30B in the +Y direction at a predetermined height, the pin 32 fits into the first groove 126, as shown in Fig. 5(b). In this way, the first groove 126 functions as an attachment portion for attaching the pin 32 to the side wall 122B.

[0030] Returning to Figure 3, the inner rail 26B has its longitudinal direction in the Y-axis direction and has multiple (four in Figure 3) engagement grooves 36 spaced at predetermined intervals in the Y-axis direction. Figure 6(a) is an enlarged view of one of the multiple engagement grooves 36. Note that each of the multiple engagement grooves 36 has the same shape.

[0031] As shown in Figure 6(a), the inner rail 26B has a substantially U-shaped XZ cross section. The engagement groove 36 has a wide upper groove 38A and a narrow lower groove 38B. The width e of the upper groove 38A is e>b, and the width f of the lower groove 38B is a≦f. <bである。

[0032] The user brings the inner rail 26B into approximate contact with the outer surface (+X surface) of the side wall 122B of the housing 22, and then slides it upward from this state. This causes the pin 32 to engage with the engagement groove 36, as shown in FIG. 6(b). This engagement causes the inner rail 26B to be fixed to the side wall 122B of the housing 22 via the pin 32, as shown in FIG. 6(b). The user may further fasten the two components together using a fastening means (not shown) to prevent the inner rail 26B from shifting in the Y-axis direction relative to the housing 22.

[0033] The method of fixing the other inner rail 26A to the housing 22 is the same as that of the inner rail 26B. FIG. 7 is an exploded perspective view showing the housing 22 (with the top surface member and the like removed), the inner rail 26A, and the pin unit 30A used to fix the inner rail 26A to the housing 22. Similar to the side wall 122B, a plurality of pin installation portions 124 are formed on the side wall 122A of the housing 22. The pin unit 30A is symmetrical in left and right, but has the same configuration as the pin unit 30B described above. The inner rail 26A is symmetrical in left and right, but has the same configuration as the inner rail 26B described above.

[0034] 8(a) and 8(b) show an example in which the inner rails 26A, 26B are fixed to the highest position of the housing 22. As shown in FIG. 8(a), the user fits each of the multiple pins 32 of the pin units 30A, 30B into the first groove 126 located at the uppermost position of each of the pin installation portions 124. Then, as shown in FIG. 8(b), the user engages each of the multiple pins 32 with the engagement groove 36 of the inner rails 26A, 26B. This allows the pair of inner rails 26A, 26B to be fixed to the uppermost positions of the pair of side walls 122A, 122B of the housing 22, respectively.

[0035] 9(a) and 9(b) show an example of fixing the inner rails 26A, 26B to the lowest position of the housing 22. As shown in FIG. 9(a), the user fits each of the multiple pins 32 of the pin units 30A, 30B into the first groove 126 located at the lowest position of each of the pin installation portions 124. Then, as shown in FIG. 9(b), the user engages each of the multiple pins 32 with the engagement groove 36 of the inner rails 26A, 26B. This allows the pair of inner rails 26A, 26B to be fixed to the lowermost portions of the pair of side walls 122A, 122B of the housing 22, respectively.

[0036] 10(a) and 10(b) show an example of fixing the inner rails 26A, 26B to the middle position of the housing 22. As shown in FIG. 10(a), the user fits each of the multiple pins 32 of the pin units 30A, 30B into a first groove 126 (e.g., the sixth first groove 126 from the top) located in the middle of each pin installation portion 124. Then, as shown in FIG. 10(b), the user engages each of the multiple pins 32 with the engagement grooves 36 of the inner rails 26A, 26B. This allows the pair of inner rails 26A, 26B to be fixed to the middle portions of the pair of side walls 122A, 122B of the housing 22, respectively.

[0037] In this manner, in this embodiment, the inner rails 26A, 26B can be fixed at various height positions on the housing 22. That is, the user can easily adjust the height positions of the inner rails 26A, 26B by changing the attachment positions of the pin units 30A, 30B and engaging the pins 32 with the inner rails 26A, 26B.

[0038] In this embodiment, for example, when the height of all the electronic devices 21 mounted on the rack 10 is 1U (unit), the inner rails 26A, 26B are fixed to predetermined positions (for example, the positions shown in FIG. 10(b)) in all the electronic devices 21. This allows the multiple electronic devices 21 to be densely mounted on the rack 10 with little space between the electronic devices 21, as schematically shown in FIG. 11(a).

[0039] Furthermore, for example, even if the height of all the electronic devices 21 is 2U or 3U, the inner rails 26A, 26B are fixed to predetermined positions in all the electronic devices 21. This allows the multiple electronic devices 21 to be densely mounted in the rack 10 with little space between the electronic devices 21, as shown schematically in Figures 11(b) and 11(c).

[0040] Furthermore, in this embodiment, even if the heights of the plurality of electronic devices 21 are not the same, as long as the heights are in U units (1U, 2U, 3U, ...), the inner rails 26A, 26B are fixed to predetermined positions in all of the electronic devices 21. This allows the plurality of electronic devices 21 to be densely mounted on the rack 10 with little space between the electronic devices 21, as schematically shown in FIG. 11(d).

[0041] In this embodiment, the height positions of the inner rails 26A and 26B can be easily adjusted as described above. This allows the electronic devices 21 to be densely mounted on the rack 10 even if the height of at least one of the electronic devices 21 mounted on the rack 10 is not in U units (1U, 2U, 3U, etc.).

[0042] For example, suppose electronic devices 21 of various sizes (heights), such as 1U, 1.3U, 1.5U, 1U, 1.7U, 2U, and 1.2U in height, are mounted in the rack 10 in order from the bottom up. In this case, if the height positions of the inner rails 26A and 26B are fixed at a predetermined height, when multiple electronic devices 21 are mounted in the rack 10, large gaps will be formed between the electronic devices 21 as shown in FIG. 12(a).

[0043] In contrast, in this embodiment, the height positions of the inner rails 26A and 26B for each electronic device 21 can be adjusted, allowing the user to adjust the height positions of the inner rails 26A and 26B so as to minimize the gap between the electronic device 21 and the electronic device mounted below. This allows multiple electronic devices 21 to be mounted in a dense configuration as shown in FIG. 12(b). In this case, a large empty space (2.3U in the case of FIG. 12(b)) is created above the rack 10, which allows other electronic devices to be mounted in this empty space, improving space efficiency. Furthermore, by densely mounting the electronic devices 21 in the rack 10, high cooling performance can be maintained even when a fan is provided in the rack 10 to cool the electronic devices 21.

[0044] As can be seen from the above description, in the first embodiment, the rack mount device is configured to include the housing 22 of the electronic device 21 and rail mechanisms 25A, 25B for mounting the housing 22 on the rack 10. Furthermore, the rack device is configured by a plurality of rack mount devices and the rack 10.

[0045] As described above in detail, according to the first embodiment, a plurality of pin installation portions 124 are provided on each of the pair of side walls 122A, 122B of the housing 22, lined up in the Y-axis direction. Each of the plurality of pin installation portions 124 has a plurality of first grooves 126 provided at different height positions. With the pin 32 fitted in the first groove 126 at the same height of each pin installation portion 124, the pin 32 engages with the engagement groove 36 of the inner rails 26A, 26B, thereby fixing the inner rails 26A, 26B to the housing. Therefore, according to the first embodiment, the height position of the pin 32 (the first groove 126 into which the pin 32 is fitted) can be easily adjusted to change the height position of the inner rails 26A, 26B.

[0046] Furthermore, in the first embodiment, the electronic device unit 20, in which the height positions of the inner rails 26A, 26B relative to the housing 22 can be easily adjusted, is mounted on the rack 10 conforming to the EIA standard. As a result, even if the mounted electronic devices 21 include electronic devices 21 whose height is not measured in U units, by adjusting the height positions of the inner rails 26A, 26B, multiple electronic devices 21 can be densely mounted on the rack 10.

[0047] In the first embodiment, the pin 32 has a shaft portion 31 and a tip portion 33. The multiple first grooves 126 of each pin installation portion 124 communicate with second grooves 128 extending in the Z-axis direction. The width (c) of the first groove 126 is equal to or greater than the diameter (a) of the shaft portion 31 and less than the diameter (b) of the tip portion 33, and the width (d) of the second groove is greater than the diameter (b) of the tip portion 33. This allows the pin units 30A and 30B to slide vertically with the pin 32 inserted through the second groove 128. When the pin 32 is fitted into the first groove 126, the pin 32 does not fall out of the first groove 126. By forming the pin installation portion 124 in a comb-like shape as shown in FIG. 4(a), the spacing between the first grooves 126 can be shortened, allowing for a greater number of first grooves 126. This allows the height positions of the inner rails 26A and 26B to be finely adjusted.

[0048] In the first embodiment, the width f (see FIG. 6(a)) of the lower groove 38B of the engagement groove 36 provided in the inner rails 26A, 26B is equal to or greater than the diameter (a) of the shaft portion 31 and less than the diameter (b) of the tip portion 33. This prevents the pin 32 from falling out of the lower groove 38B when the pin 32 is fitted into the lower groove 38B of the engagement groove 36.

[0049] In the first embodiment, the pin units 30A and 30B each include a plurality of pins 32 connected by a connecting member 34. This allows the pins 32 to be collectively adjusted by adjusting the positions of the pin units 30A and 30B, without fitting the pins 32 one by one into the first grooves 126. In the first embodiment, the width d of the second groove 128 (the width in the Y-axis direction) satisfies d>b. This is to enable the pin units 30A and 30B to be detachable from the side walls 122A and 122B. For example, if the pin units 30A and 30B do not need to be detachable from the side walls 122A and 122B (if the pins 32 can move along the first grooves 126 and the second grooves 128), the width d may be set to d>a.

[0050] In the first embodiment, the pin units 30A and 30B are described as each having a plurality of pins 32 connected by the connecting member 34. However, the present invention is not limited to this, and the pins 32 do not necessarily have to be connected by the connecting member 34. In this case, each pin 32 may be fitted into the first groove 126.

[0051] Second Embodiment The second embodiment will be described in detail below with reference to FIGS. 13 to 16(b).

[0052] In the second embodiment, a housing 222 and inner rail 326B (and 326A) shown in FIG. 13 are used instead of the housing 22 and inner rail 26B (and 26A) of the first embodiment.

[0053] FIG. 13 is an exploded perspective view showing a housing 222 (with the top surface member removed) according to the second embodiment, an inner rail 326B, and a pin unit 30B used to fix the inner rail 326B to the housing 222.

[0054] In the second embodiment, a pair of side walls 322A, 322B of a housing 222 are formed with pin installation portions 324 instead of the pin installation portion 124 of Fig. 3. Also, an inner rail 326B is formed with an engagement groove 336 instead of the engagement groove 36 of Fig. 3.

[0055] 14(a) is an enlarged view of one of the plurality of pin placement portions 324. Note that the plurality of pin placement portions 324 each have the same shape.

[0056] As shown in FIG. 14(a), the pin installation portion 324 of the second embodiment has a plurality of first grooves 126 (19 in FIG. 14(a)) extending in the Y-axis direction at different height positions (Z positions). The pin installation portion 324 also has second grooves 128 extending in the height direction (Z-axis direction) and communicating with all of the first grooves 126. The first grooves 126 and second grooves 128 penetrate the side wall 322B. In this second embodiment, the first grooves 126 at different height positions extend alternately on both sides (+Y side, -Y side) of the second groove 128.

[0057] The width c of the first groove 126 and the width d of the second groove 128 are the same as those in the first embodiment (a≦c<b、d> b).

[0058] Returning to Figure 13, the inner rail 326B according to the second embodiment has a longitudinal direction in the Y-axis direction and has multiple (four in Figure 13) engagement grooves 336 spaced at predetermined intervals in the Y-axis direction. Figure 14(b) is an enlarged view of one of the multiple engagement grooves 336. Note that each of the multiple engagement grooves 336 has the same shape.

[0059] As shown in Figure 14(b), similar to the first embodiment, the engagement groove 336 has an upper groove 38A that is wide in the Y-axis direction, a lower groove 38B that is narrow in the Y-axis direction, and a slide groove 38C that communicates with the lower groove 38B and extends in the Y-axis direction. The dimension j in the Y-axis direction of the slide groove 38C is the same (k = j) as the dimension k in the Y-axis direction of the pin installation portion 324 (see Figure 14(a)). Note that the width e of the upper groove 38A is e > b, similar to the first embodiment. Furthermore, the width m (dimension in the Z-axis direction) of the slide groove 38C is a ≤ m <bである。

[0060] The inner rail 326A is symmetrical to the inner rail 326B, but has a similar shape. That is, the inner rail 326A also has a plurality of engagement grooves 336, similar to the inner rail 326B.

[0061] Next, a method for fixing the inner rail 326B to the housing 222 will be described.

[0062] FIG. 15(a) is a diagram showing a state in which the pin 32 is fitted into the first groove 126 of the pin installation portion 324, which extends from the second groove 128 to the +Y side. In this example, to fix the inner rail 326B to the housing 222, the user moves the inner rail 326B so that the pin 32 moves within the upper groove 38A and the lower groove 38B of the engagement groove 336. Then, the user moves the inner rail 326B in the -Y direction along the slide groove 38C until the pin 32 reaches the position shown in FIG. 15(b). This positions the inner rail 326B relative to the housing 222. Thereafter, the user fastens the inner rail 326B to the housing 222 using a fastening means (not shown) (so as to prevent displacement in the Y-axis direction). This allows the inner rail 326B to be fixed in the position shown in FIG. 15(b).

[0063] On the other hand, FIG. 16(a) shows a state in which the pin 32 is fitted into the first groove 126 of the pin installation portion 324, which extends from the second groove 128 to the -Y side. In this case, the user moves the inner rail 326B so that the pin 32 moves within the upper groove 38A and the lower groove 38B of the engagement groove 336. Then, the user moves the inner rail 326B in the +Y direction along the slide groove 38C until the pin 32 reaches the position shown in FIG. 16(b). This positions the inner rail 326B relative to the housing 222. Thereafter, the user fastens the inner rail 326B to the housing 222 using a fastening means (not shown) (so as to prevent displacement in the Y-axis direction). This allows the inner rail 326B to be fixed in the position shown in FIG. 16(b).

[0064] In this second embodiment, since the engagement groove 336 has a slide groove 38C, the relative positional relationship in the Y-axis direction between the inner rail 326B and the housing 222 can be made the same in the case of Figure 15(b) and the case of Figure 16(b).

[0065] The method for fixing inner rail 326A to housing 222 is the same as the method for fixing inner rail 326B, and therefore a description thereof will be omitted.

[0066] As described above in detail, according to the second embodiment, first grooves 126 at different height positions in pin installation portion 324 extend alternately on both sides (+Y side, -Y side) of second groove 128. In this case, the number of first grooves 126 can be increased compared to the first embodiment, making it possible to finely adjust the height positions of pins 32, i.e., the height positions of inner rails 326A, 326B.

[0067] Furthermore, according to the second embodiment, engagement groove 336 of inner rail 326B has slide groove 38C extending in the Y-axis direction, and dimension j of slide groove 38C in the Y-axis direction matches dimension k of pin installation portion 324. This allows the relative positions of inner rail 326B and housing 222 in the Y-axis direction to be the same regardless of which first groove 126 pin 32 is fitted into.

[0068] In the above first and second embodiments, the fasteners for fastening the inner rails 26A, 26B, 326A, 326B to the housings 22, 222 are pins 32, but this is not limited to this. Anything other than pins 32 (such as a hook-shaped fastener) may be used as long as it can fasten the inner rails to the side wall of the housing. If the fastener is hook-shaped, a plurality of holes for adjusting the height position of the hooks may be formed in the side wall of the housing in the height direction.

[0069] In the above first and second embodiments, the pin installation portions 24 and 324 having the first groove 126 and the second groove 128 communicating with the first groove 126 have been described. However, the present invention is not limited thereto. For example, as the pin installation portion, a pin installation portion 424 having a shape as shown in FIG. 17(a) may be adopted. The pin installation portion 424 in FIG. 17(a) has a plurality of groove portions 127 formed by combining the first groove 126 and the circular holes 129. The width (dimension in the Z-axis direction) of the first groove 126 is c (a ≤ c < b), and the diameter of the circular hole 129 is d (d > b). As the pin installation portion, a pin installation portion 524 as shown in FIG. 17(b) may be adopted. As shown in FIG. 17(b), the directions of the groove portions 127 arranged in the height direction of the pin installation portion 524 are staggered. By doing so, the arrangement density of the groove portions 127 can be increased. That is, the number of the first grooves 126 can be increased, so that the height of the inner rail can be finely adjusted.

[0070] The above-described embodiments are preferred examples of the present invention. However, the present invention is not limited thereto, and various modifications can be made without departing from the gist of the present invention.

Explanation of Reference Numerals

[0071] 10 Rack <​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

Claims

1. A housing for an electronic device; a pair of rail members fixed to each of a pair of side walls of the housing so as to extend along a first direction perpendicular to the height direction, the rail members being used to mount the housing on a rack; a plurality of installation sections for installing fixtures for fixing the rail members are arranged side by side in the first direction on each of the pair of side walls of the housing, and each of the installation sections has a plurality of attachment sections to which the fixtures provided at different height positions can be attached; A rack mount device characterized in that, when the fixing device is attached to each of the mounting sections having the same height position as the multiple installation sections, multiple engaging grooves provided on each of the rail members engage with the multiple fixing devices provided on each of the side walls of the housing, thereby fixing each of the rail members to each of the side walls.

2. the fastener is a pin; 2. The rack mount device according to claim 1, wherein the plurality of attachment portions of each of the installation portions are a plurality of first grooves that penetrate the side wall at different height positions.

3. The plurality of pins each have a shaft portion having a first diameter and protruding outward from the side wall, and a tip portion having a second diameter larger than the first diameter and provided at an end portion of the shaft portion on the protruding side, each of the plurality of first grooves of each of the installation portions communicates with a second groove extending in the height direction while passing through the side wall; 3. The rack mount device according to claim 2, wherein the width of the first groove is equal to or greater than the first diameter and less than the second diameter, and the width of the second groove is greater than the second diameter.

4. 4. The rack mount device according to claim 3, wherein the first grooves are alternately provided on both sides of the second groove in the first direction.

5. 4. The rack mount device according to claim 3, wherein the width of the engagement groove provided in the rail member is equal to or greater than the first diameter and less than the second diameter.

6. 2. The rack mount device according to claim 1, wherein the plurality of fasteners provided on each of the pair of side walls are arranged in a line and connected by a connecting member.

7. A plurality of rack mount devices according to any one of claims 1 to 6; a rack having a plurality of pairs of rail mounting portions arranged at equal intervals along the height direction, to which a pair of the rail members provided on each of the rack mount devices can be attached.

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