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Insertion and removal system in plug-in unit

a technology of insertion and removal system and plug-in unit, which is applied in the direction of electrical apparatus construction details, coupling device connections, support structure mounting, etc., can solve the problems of system not allowing breakage of external forces, and cannot provide a sufficient force of insertion and removal

Inactive Publication Date: 2002-05-23
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0053] FIG. 5 is a side view of the constitution of a conventional insertion and removal system in a plug-in unit as disclosed in JP-A-2000/9177

Problems solved by technology

Consequently, it cannot be provided a sufficient force of the insertion and removal according to the plug-in unit with the need of the insertion and removal force, as the trend toward more and more pins on a connector.
The system does not allow breakage thereof on which external forces are exerted.

Method used

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  • Insertion and removal system in plug-in unit
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Examples

Experimental program
Comparison scheme
Effect test

embodiment 1

[0066] Embodiment 1

[0067] FIGS. 7A, 7B and 7C are drawings of the constitution of an insertion and removal system in a plug-in unit in embodiment 1 according to the present invention, respectively. FIG. 7A is a side view of a handle on extension. FIG. 7B is a side view of a handle on shrinkage. FIG. 7C is a perspective view of a lock system of the handle for locking a front panel. In the drawings, 1 denotes a lever (a lever part, a handle element) rotationally supported on an end of the front panel and rotationally operated in a direction of insertion or removal of the plug-in unit with respect to the sub-rack. 2 denotes a handle-support part of rotationally supporting the lever, which is arranged on an end of a front panel 3. 3 denotes the front panel arranged on a printed circuit board constituting a plug-in unit, for covering an opening of the sub-rack when the plug-in unit is housed in the sub-rack. 4 denotes a handle slider (a handle-extension slide element). The handle slider ...

embodiment 2

[0079] Embodiment 2

[0080] With embodiment 2, a detector is provided, the detector detecting an insertion or removal state of the plug-in unit with respect to the sub-rack, with linking to a locking motion and an unlocking motion of a locking element with respect to a handle-extension slide element or a lever element.

[0081] FIGS. 10A, 10B, 10C and 10D are drawings of the constitution of an insertion and removal system in a plug-in unit in embodiment 2 according to the present invention, respectively. Specifically, FIG. 10A is a front view of one example of the detector, and FIG. 10B is a side view of FIG. 10A. FIG. 10C is a front view of another examples of the detector, and FIG. 10D is a side view of FIG. 10C. In the drawings, 8 and 8a denote triggers arranged on the handle slider 4A, the respective triggers constituting detectors. When the handle slider 4A is slid to the shrinkage position of the lever 1, a micro-switch 9 turns on. When the handle slider 4A is slid from the shrinka...

embodiment 3

[0087] Embodiment 3

[0088] The system in embodiment 3 includes a handle-extension slide element inserted freely into the lever part in an advance or retreat direction to be slid in a longitudinal direction of the lever between an extension position of the lever on extending the lever at the maximum and a shrinkage position of the lever part whose length nearly corresponds to the length of the lever part; and a locking element including an engagement pit arranged in the lever part and an engagement projection arranged on the front panel, the engagement projection for engaging with the engagement pit when the lever part is rotated toward the front panel side, for locking the lever part on the front panel by transferring a stress generated in the lever part to the engagement pit as a force narrowing an opening diameter of the engagement pit to lock the lever part on the front panel.

[0089] FIGS. 11A and 11B are drawings of the constitution of an insertion and removal system in a plug-in ...

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PUM

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Abstract

An insertion and removal system in a plug-in unit includes a handle-extension slide element inserted freely into the lever part in an advance or retreat direction to slide in a longitudinal direction of the lever part between an extension position extended from a length of the lever part at the maximum and a shrinkage position nearly corresponding to the length of the lever part; and a locking element arranged on the handle-extension slide element and the front panel, the locking element for locking the handle-extension slide element slid to the shrinkage position on the front panel.

Description

[0001] 1. Field of the Invention[0002] The present invention relates to a plug-in unit consisting of a sub-rack constituting electronic equipment such as communication equipment and so on and a printed circuit board including electronic circuit parts inserted into and removed from the sub-rack. Especially, the present invention relates to an insertion and removal system in a plug-in unit for inserting the plug-in unit into the sub-rack and removing the plug-in unit from the sub-rack.[0003] 2. Description of the Prior Art[0004] FIG. 1 is a perspective view of the constitution of a conventional sub-rack. In FIG. 1, reference numeral 100 denotes a sub-rack. 101 denotes a top plate. 102 denotes a bottom plate. 103 denotes a side plate. 104 denotes a front rail arranged on front edges of the top plate 101 and the bottom plate 102, respectively. 105 denotes a mid-rail arranged on a midrange of the top plate 101 and the bottom plate 102, respectively, so as to cross the midrange. 106 denot...

Claims

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Application Information

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IPC IPC(8): H05K7/14
CPCH05K7/1409H01R13/62961H01R13/62933
Inventor TABUCHI, HIROSHI
Owner MITSUBISHI ELECTRIC CORP