JP2011066232A - Rack door follow-up mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rack door follow-up mechanism capable of starting maintenance work rapidly without time-consuming preliminary work when performing maintenance work from the back side of an electronic component housed in a rack. <P>SOLUTION: The mechanism follows up operation for opening a back door 1 of a rack 2 while a cable arm 4 is connected with the back door 1 of the rack only when the back door 1 of the rack is opened for maintenance work at the back side of the rack. Thus, the cable arm 4 obstructing the maintenance work is automatically removed from the back side of the electronic component 3 so that a maintenance space can be automatically formed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

   The present invention relates to a rack door follow-up mechanism that causes a cable arm that supports a cable extending from an electronic device to follow the rotation of a door provided on the back side of a rack that houses the electronic device.

   For example, as shown in FIG. 12, the electronic device 103 accommodated in the rack 102 is provided with a cable arm 104 that supports a cable extending from the electronic device during maintenance. The cable arm 104 is folded on the back surface of the electronic device 103.

Japanese Patent Laid-Open No. 11-55838 Japanese Patent Laid-Open No. 2002-43766 JP 2007-324427 A

However, the cable arm formed in the conventional rack has the following problems.
That is, when performing the maintenance work on the back side of the electronic device 103 shown in FIG. 12, in the state where the cable arm 104 formed on the back side of the electronic device 103 is folded, the cable arm 104 is once rotated forward, The operation of securing the work space was necessary. For this reason, particularly in a rack provided with a plurality of cable arms, there is a problem that it takes time to prepare for maintenance work.

   The present invention has been made in view of the above problems, and when performing maintenance work on the electronic device 3 accommodated in the rack from the back side, the maintenance work is quickly started without performing time-consuming preliminary work. An object of the present invention is to provide a rack door follow-up mechanism capable of performing the above.

In order to achieve the above object, the rack door tracking mechanism of the present invention is a rack door tracking mechanism for a cable arm that interlocks a cable arm that supports a cable extending from an electronic device housed in a rack and a door formed on the rack. Mechanism,
Corresponding to rotation of a handle formed on the door to open and close the door, the cable arm and the door are connected, and the cable arm is retracted from the back side of the electronic device. .

   It is preferable to absorb the difference in the rotation radius caused by the difference in the rotation center between the rotation axis of the cable arm and the rotation axis of the door by expanding and contracting the connector provided in the cable arm with a spring.

   In addition, the difference of the rotation radius caused by the difference in the rotation center between the rotation axis of the cable arm and the rotation axis of the door is determined by the contact of the long hook on the L-shaped rail connecting the cable arm and the door. It is also preferable to absorb by moving.

   According to the rack door following mechanism of the present invention, the cable arm is connected to the rack rear door only when the rear door is opened for maintenance work from the rear side of the rack, and the rack rear door is opened (rotated). ) By following the operation, the cable arm that hinders maintenance work can be retreated from the back of the electronic device, and a maintenance space can be secured without preparation work. As a result, it is possible to shorten the maintenance time by omitting the time required for the cable arm removal process and to eliminate an erroneous operation during the cable arm removal process.

The rear side of the rack is shown. The inside of the rack rear door is shown. The shape and positional relationship when the connector and the hook are viewed from directly above are shown. The state of the cable arm when the electronic device is pulled out to the front of the rack is shown. The coupling | bonding operation | movement with the coupling tool of a hook and a cable arm is shown. The hook and cable arm connector are shown connected. The state where the cable arm automatically rotates following the operation of opening the rear door of the rack is shown. A mechanism for absorbing the difference in rotation radius due to the difference in the position of the rotation axis between the cable arm and the rack back door is shown. Fig. 5 shows the operation of connecting the longitudinal hook with the L-shaped rail of the cable arm. The state where the long hook of a rack back door and the L-shaped rail of a cable arm are connected is shown. The state which opened the rack back door from the top is shown. A conventional cable arm is shown.

   Hereinafter, several forms of the rack door following mechanism of the present invention will be described. These embodiments are specifically described for better understanding of the gist of the invention, and do not limit the present invention unless otherwise specified. In addition, in the drawings used in the following description, in order to make the features of the present invention easier to understand, there is a case where a main part is shown in an enlarged manner for the sake of convenience. Not necessarily.

(First embodiment)
FIG. 1 shows the rear side of the rack. In other words, the rack rear door (door) 1 that is rotatably provided on the rack 2 is in an open state, and supports the cable when the electronic device 3 mounted (accommodated) and the electronic device 3 are pulled forward. The structure provided with the cable arm 4 for doing this is shown.

   FIG. 2 shows the inside of the rack back door when the rack back door is closed. A connector 5 slidable to the left and right is provided behind the cable arm 4 on the back surface of the electronic device 3. The connector 5 is held in place by a spring.

   Further, the locking rod 8 that slides up and down by the rotation of the handle 7 of the rack back door 1 is provided with a hook 6 that is connected to the connector 5 provided in the cable arm 4. The hook 6 is offset and fixed up and down with the connector 5 provided on the cable arm 4. The hook 6 can be attached at any upper and lower positions according to the mounting position of the cable arm 4 by preparing a plurality of fixing holes on the rod 8. FIG. 3 shows the shape and positional relationship when the connector 5 and the hook 6 are viewed from directly above.

The operation of the rack door following mechanism configured as described above will be described.
As shown in FIG. 2, when the rack rear door (door) 1 is closed, the hook 6 on the rack rear door 1 side and the position of the connector 5 on the cable arm 4 side are offset vertically, and the cable arm 4 and the rack back door 1 are not connected. For this reason, as shown in FIG. 4, when the electronic device 3 is pulled out to the front of the rack 2, the cable arm 4 can be deployed forward.

   FIG. 5 shows an operation in which the rod 8 is vertically slid by the rotation of the handle 7, and the hook 6 is moved and connected to the same height as the connector 5 of the cable arm 4. FIG. 6 shows a state in which the handle 7 of the rack back door 1 is turned and the hook 6 of the rack back door 1 and the connector 5 of the cable arm 4 are connected. When the rack back door 1 is opened rearward as shown in FIG. 7, the cable arm 4 to which the connector 5 and the hook 6 are connected automatically rotates following the operation of opening the rack back door 1.

   Here, the difference in the rotation radius due to the difference in the rotation axis between the cable arm 4 and the rack back door 1 is absorbed by the slide mechanism of the connector 5 of the cable arm 4. When the electronic device 3 is pulled forward again, the connection is released by returning the handle 7 to the original position, and the cable arm 4 can be returned to the original position without closing the rack back door 1.

   As described above, only when the rack rear door 1 is opened for maintenance work on the rear side of the rack 2, the cable arm 4 is connected to the rack rear door 1 and follows the operation of opening the rack rear door 1. The cable arm 4 that hinders maintenance work is automatically removed from the back surface of the electronic device 3 to automatically provide (form) a maintenance space. Thereby, it is possible to shorten the maintenance time by omitting the processing time of the cable arm 4 and to prevent an erroneous operation of the arm processing work.

(Second embodiment)
FIG. 8 shows another embodiment of the mechanism for absorbing the difference in the rotation radius due to the difference in the position of the rotation axis between the cable arm and the rack back door.
FIG. 8 shows the inside of the rack back door 11 with the rack back door 11 closed. The cable arm 14 is provided with an L-shaped rail 19. Further, the rod 18 of the rack back door 11 is provided with a longitudinal hook 10. As shown in FIG. 8, the L-shaped rail 19 and the longitudinal hook 10 are separated vertically when the rack back door 11 is closed.
FIG. 9 shows an operation in which the rod 18 is vertically slid by the rotation of the handle 17 and the long hook 10 is connected to the L-shaped rail 19 of the cable arm 14. FIG. 10 shows a state in which the handle 17 of the rack back door 11 is turned and the longitudinal hook 10 of the rack back door 11 and the L-shaped rail 19 of the cable arm 14 are connected.
FIG. 11 is a view of the operation of opening the rack back door 11 as seen from directly above. As the angle at which the rack rear door 11 is opened increases, the contact point on which the long hook 10 and the L-shaped rail 19 are hooked moves in the direction of the arrow. It is possible to maintain the connection until the rack back door 11 is fully opened.

1. Rack rear door (door)
2. Rack 3. Electronic equipment 4. Cable arm Connecting tool 6. Hook 7. Handle 8. Rod 9. L-shaped rail Longitudinal hook

Claims (3)

A rack door follow-up mechanism for a cable arm that links a cable arm that supports a cable extending from an electronic device housed in a rack and a door formed on the rack,
Corresponding to rotation of a handle formed on the door to open and close the door, the cable arm and the door are connected, and the cable arm is retracted from the back side of the electronic device. Rack door tracking mechanism.    The rotation radius difference caused by the difference in the rotation center between the rotation axis of the cable arm and the rotation axis of the door is absorbed by expanding and contracting a connecting tool provided in the cable arm with a spring. Item 10. The rack door following mechanism according to item 1. The contact of the longitudinal hook is moved on the L-shaped rail connecting the cable arm and the door by the difference in rotation radius caused by the difference in the rotation center between the rotation axis of the cable arm and the rotation axis of the door. The rack door follow-up mechanism according to claim 1, wherein the rack door follow-up mechanism is absorbed.

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