JPS6373699A - Unit frame attaching structure - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Summary] The present invention is capable of attaching the unit by screwing screws passed through holes in the mounting plates on both sides of the unit frame into screw holes in the mounting frames on both sides of the front opening of the equipment rack. In a unit frame mounting structure for a communication device or the like that fixes the frame to an equipment rack, the mounting plate is provided with an abbreviated hanging piece with a downwardly bent tip, the mounting frame is provided with a guide hole through which the hanging piece is passed, The unit frame can be screwed easily and efficiently with the locking piece inserted into the guide hole of the mounting frame and the base of the locking piece being locked in the guide hole.

[Industrial application field]

The present invention relates to a mounting structure for unit frames in electronic devices such as communication devices and information devices, and more specifically, the present invention relates to a structure for mounting unit frames in electronic devices such as communication devices and information devices, and more specifically, unit frames that house printed boards on which electronic components are mounted are vertically arranged in a device rack with an open front surface. This invention relates to a unit frame mounting structure.

[Conventional technology]

FIG. 4 shows a structure for attaching a unit 7) frame in a conventional electronic device. Referring to the figure, an opening 2 extending vertically is formed in the front of the equipment rack 1.
Attachment frames 3.4 are provided on both sides of the opening 2 and extend in the vertical direction. A large number of screw holes 5 are formed in the mounting frames 3 and 4 at equal pitch intervals in the vertical direction. The unit frame 6 has an open front, and a plurality of printed boards 7 on which electronic components are mounted are accommodated within the unit 6.

Mounting plates 8.9 are provided on both sides of the front opening of the unit frame 6.
A plurality of holes 11 through which screws 10 are passed are provided in the mounting plate 8.9 at intervals in the vertical direction. The pinch interval of the holes 11 is the same as the pitch interval of the screw holes 5. The unit frame 6 is inserted into the screw holes 11 of the mounting plates 8 and 9 of the equipment rack 1 through the screws 10 passed through the holes 11 of the mounting plates 8 and 9.
It is fixed to the equipment rack 1 by screwing it together.

[Problem that the invention seeks to solve]

In the conventional unit frame mounting structure having the above configuration, when installing the unit frame 6 to the equipment rack 1, after inserting the unit 6 into the equipment rack 1 through the opening 2 of the equipment rack 1, 11 and the screw hole 5 of the equipment rack 1 are coaxially aligned, while supporting the mounting frame 6, insert the screw 1.
It was necessary to pass the screw 10 through the hole 11 and screw it into the screw hole 5. Therefore, if you are doing this work alone, support the load of the unit frame 6 with one hand, and insert the screw 10 into the screw hole with the other hand. 5, which places an excessive load on one hand, making the unit frame 6 unstable and making it easy for the holes 11 and screw holes 5 to become misaligned, making it difficult to install the screws 10. A problem arose.

[Means for solving problems]

In view of the above-mentioned problems, an object of the present invention is to provide a unit frame mounting structure that allows screwing work to be performed easily and efficiently.

According to the present invention, a unit frame having mounting plates on both sides having holes for passing screws is inserted into an equipment rack having screw holes in the mounting frames on both sides of the front opening, and In a unit frame mounting structure in which the uni-throttle frame is fixed to the equipment rack by screwing the screws passed through the holes into the screw holes in the mounting frame of the equipment rack, the mounting plate has an abbreviated shape with a downwardly bent tip. A hanging piece is provided, and a guide hole is provided in the mounting frame to pass the hanging piece through, so that when the base of the hanging piece is hung in the guide hole, the hole in the mounting plate and the screw hole in the mounting frame are coaxial. A unit frame mounting structure is provided, characterized in that guide holes are positioned so as to be aligned.

[For production]

In the unit frame mounting structure according to the present invention, when inserting the unit frame into the equipment rack, the hanging pieces of the mounting plate are inserted into the guide holes of the mounting frame. This insertion work can be carried out easily because the operator can hold the unit frame with both hands. After the latching piece is inserted into the guide hole, the base of the latching piece is latched to the guide hole, so there is no need for the operator to support the unit frame by hand. Moreover, at that time, the holes in the mounting plate of the unit frame and the screw holes in the mounting frame of the equipment rack are aligned coaxially, so the operator must perform the screw tightening process, that is, insert the screws passed through the holes in the mounting plate into the mounting frame. The work of screwing into the screw hole can be done easily and efficiently.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 and 2 show one embodiment of the present invention. First, referring to FIG. 1, an opening 22 extending vertically is formed in the front of the equipment rack 21, and mounting frames 23 and 24 extending vertically are formed on both sides of the opening 220.
is provided. A large number of screw holes 25 are formed in each of the mounting frames 23 and 24 at equal pitch intervals in the vertical direction. The unit frame 26 is open at the front, and a plurality of printed boards 27 mounted with electronic components are mounted on the unit 2.
It is inserted into the unit frame 26 from the front opening of 6 and is housed in the unit frame 26. Mounting plates 28 and 29 are provided on both sides of the front opening of the unit frame 26, and the mounting plates 28 and 29 have a plurality of holes 31 (four holes in the illustrated embodiment) for passing screws 30 in the vertical direction. are provided at intervals. The pinch interval of hole 31 is screw hole 25
is the same as the pitch interval of

At the upper and lower ends of the mounting plates 28 and 29 of the unit frame 26, there are abbreviated hanging pieces 32 with downwardly bent tips.
, 33 are provided, and a mounting frame 23 of the equipment rack 21 is provided.
, 24 are formed with guide holes 34 through which the hook pieces 32 and 33 pass, respectively. The guide hole 34 has a size that allows the locking pieces 32 and 33 to pass through. Further, as shown in FIG. 2, the guide holes 34 are connected to the holes 31 of the mounting plates 28 and 29 of the unit frame 26 and the equipment rack 21 when the bases of the hooking pieces 32 and 33 are hooked to the guide holes 34. The positional relationship with the guide hole 34 is determined so that the screw holes 25 of the mounting frames 23 and 24 are coaxially aligned.

Here, the guide holes 34 are formed alternately with the screw holes 25 at the same pitch intervals as the screw holes 25. On the other hand, the distance between the lower hooking piece 33 and the hole 31 at the lower end of the mounting plates 28, 29 and the distance between the upper hooking piece 32 and the hole 31 at the upper end of the mounting plates 28, 29 are the same as the screw hole 25, respectively. The distance is set to be equal to the distance from the guide hole 34.

In the unit frame mounting structure having the above configuration,
After the unit frame 26 is inserted into the equipment rack 21 from the front opening 22 of the equipment rack 21, the unit frame 26 is temporarily attached 2.
The unit frame 26 is fixed to the equipment rack 21 by screwing the screws 30 passed through the holes 31 of 8 and 29 into the screw holes 25 of the mounting frames 23 and 24 of the equipment rack 21. is inserted into the equipment rack 21, the second
As shown in the figure, the latching pieces 32 of the mounting plates 28 and 29
, 33 are inserted into the guide holes 34 of the mounting frames 23, 24. This insertion work can be carried out easily because the operator can hold the unit frame 26 with both hands. After inserting the locking pieces 32 and 33 into the guide hole 34, as shown in FIG.
Since the base of the unit frame 26 is hooked to the guide hole 34, the operator does not need to support the unit frame 26 by hand. Moreover, at that time, the holes 31 of the mounting plates 28 and 29 of the unit frame 26
Since the screw holes 25 of the mounting frames 23 and 24 of the equipment rack 21 are aligned coaxially, the operator can perform screw tightening work, that is, insert the screws passed through the holes 31 of the mounting plates 28 and 29 into the mounting frames 23 and 24. The screwing operation into the screw hole 25 can be carried out easily and efficiently.

In the above embodiment, since the screw holes 25, holes 31, and guide holes 34 are formed at equal pitches, the mounting position of the unit frame 26 can be arbitrarily selected, and it can be hung at any position. The retaining pieces 32 and 33 can be hooked into the guide hole 34.

As shown in FIG. 2, when the unit frame 26 is inserted into the equipment rack 21, the unit frame 26 is attached to the hooking pieces 32, 3.
Since it is cantilever supported by 3, a moment due to the load W is applied to the support part, but the latching piece 32
, 33 have their tips bent downward in an abbreviated shape, so that the tips of the hooking pieces 32 and 33 come into contact with the back surfaces of the mounting frames 23 and 24, thereby preventing the unit frame 26 from tilting. . Note that, as shown in FIG. 3, the effect of preventing the unit frame 26 from tilting can be obtained even if the hooking pieces 33 are provided only at the lower ends of the mounting plates 28 and 29.
As shown in FIG. 2, if hooking pieces 32 and 33 are provided at both upper and lower ends of the mounting plates 28 and 29, tilting of the unit frame 26 can be reliably prevented. Furthermore, when inserting the unit frame 26, the lower parts of the mounting plates 28 and 29 are usually difficult to see due to the height of the mounting position of the unit frame 26, so
If the latching pieces 32 and 33 are provided at the upper and lower ends of the mounting plates 28 and 29, respectively, both latching pieces 32 and 33 can be easily inserted into the guide hole 34 using the easier-to-see latching piece 32 as a reference. It has the advantage of being possible.

Note that the printed board 27 can also be accommodated within the unit frame 26 after the unit frame 26 is attached to the equipment rack 21.

Although the illustrated embodiments have been described above, the present invention is not limited to the embodiments described above. For example, the number and shape of screw holes in the mounting frame, holes in the mounting plate, guide holes, hanging pieces, etc. Various changes can be made to .

〔Effect of the invention〕

As is clear from the above description, according to the present invention, when inserting the unit frame into the equipment rack, the latch pieces of the mounting plate are inserted into the guide holes of the mounting frame to guide the base of the latch pieces. Since it can be hung in the hole, there is no need for the worker to support the unit frame with his hands when screwing the unit frame. Furthermore, since the holes in the mounting plate of the unit frame and the screw holes in the mounting frame of the equipment rack are coaxially aligned, the operator can easily and efficiently perform the screw tightening work. Therefore, it is possible to provide a unit frame mounting structure with good assembly workability.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a unit frame mounting structure showing one embodiment of the present invention, Fig. 2 is a vertical sectional view of main parts of the unit frame mounting structure shown in Fig. 1, and Fig. 3 is an exploded perspective view of a unit frame mounting structure showing an embodiment of the present invention. FIG. 4 is an exploded perspective view showing a conventional unit frame mounting structure. In the figure, 21 is an equipment rack, 22 is an opening, 23, 2
4 is a mounting frame, 25 is a screw hole, 26 is a unit frame, 27
is a printed board, 28 and 29 are mounting plates, 30 is a screw,
31 is a hole, 32 and 33 are hanging pieces, and 34 is a guide hole, respectively.

Claims (1)

[Claims] 1. A mounting plate having a hole (31) for passing a screw (30) (
28, 29) on both sides of the unit frame (26),
It was inserted into the equipment rack (21) with screw holes (25) in the mounting frames (23, 24) on both sides of the front opening (22), and passed through the holes (31) in the mounting plates (28, 29). Screws (30
) in the unit frame mounting structure in which the unit frame (26) is fixed to the equipment rack (21) by screwing the mounting plates (28, 29) into the screw holes (25) of the mounting frames (23, 24). ) are provided with approximately L-shaped hanging pieces (32, 33) whose tips are bent downward, and the mounting frame (23, 24) is provided with guide holes (34) through which the hanging pieces (32, 33) are passed. , When the base of the hooking piece (32, 33) is hooked to the guide hole (34), the hole (31) of the mounting plate (28, 29) and the screw hole (25) of the mounting frame (23, 24) A unit frame mounting structure characterized in that the guide hole (34) is positioned so that the and the guide holes are coaxially aligned. 2. The screw holes (25) of the mounting frames (23, 24) and the holes (31) of the mounting plates (28, 29) are arranged vertically at the same pitch, and the guide holes (34) are Claim 1, characterized in that the screw holes (25) are arranged alternately with the screw holes (25) at the same pitch interval as the holes (25).
Unit frame mounting structure described in section. 3. Hanging pieces (32, 33) are provided at the upper and lower ends of the mounting plates (28, 29) and the mounting frames (23, 24)
The unit frame mounting structure according to claim 1 or 2, wherein the unit frame mounting structure is capable of being hung in each of the guide holes (34) of the unit frame.