Module ejector for sub-rack

Abstract

The present invention relates to a module ejector for a sub-rack, particularly comprising: a lever having one end rotatably installed on a plug-in unit having an end to which a face plate is fixed; a tab installed on the other end of the lever; a sliding catch which penetrates the lever and slides along the lever; a hook coupling unit which is rotatably installed on the sliding catch and which can be coupled to the face plate by rotating in one direction when the sliding catch moves to the opposite side of the tap and can be de-coupled from the face plate by rotating in the other direction when the sliding catch moves toward the tab; and a spring which provides an elastic force for restoring the sliding catch that has slid toward the tab, to its original position.

Description

Module ejector for subrack

[0001] The present invention relates to ejectors, and more particularly to a module ejector for a subrack used to eject circuit boards or other plug-in type components from a subrack.

[0002] Modular electronic equipment, such as general-purpose computers, digital switching systems, and large-capacity monitoring and control equipment, typically utilizes boards with various functions. Examples include boards for communication modules, I / O modules, and power modules. These boards can be mounted within a subrack.

[0003] Here, the boards must be removable and mounted on the subrack for replacement or repair, etc. That is, the boards must be able to be mounted inside the subrack and simultaneously be removable from the subrack.

[0004] In order to mount and detach the substrate to the subrack, a module ejector for the subrack is used. However, the module ejector for the subrack that was previously used had a hook that provided a locking function for the subrack as shown in the prior art (publication patent 10-2006-0046492), which was formed as an integral part with the sliding catch. Therefore, there was a problem that the locking function was easily released due to vibration and impact, resulting in unintentional opening.

[0005] The present invention has been devised to solve the problems of the above-mentioned prior art, and its purpose is to provide a module ejector for a subrack that is manufactured independently of a sliding catch and a hook and operates the hook with the elastic force of a spring to maintain a stable locking function, thereby preventing it from being easily opened even when an impact is applied from the outside.

[0006] In order to solve the above-described problem, the module ejector for a subrack according to the present invention comprises: a lever, one end of which is rotatably installed on a plug-in unit or a printed circuit board having a face plate fixed to an end; a tab installed on the other end of the lever; a sliding catch that penetrates the lever and slides along the lever; a hook engaging portion that is rotatably installed on the sliding catch, so that when the sliding catch moves in the opposite direction of the tab, it rotates in one direction to enable engagement with the face plate, and when it moves toward the tab, it rotates in the other direction to enable disengagement with the face plate; and a spring that provides an elastic force to return the sliding catch that has slid toward the tab to its original position.

[0007] Here, the hook coupling portion is composed of a middle portion that is connected to the upper portion of the sliding catch by a pin while penetrating the lever and rotating; a hook that is integrally formed at the upper portion of the middle portion and rotates together with the middle portion while protruding out of the sliding catch, and is inserted into a slot formed in the face plate or removed from the slot to be caught or released from the face plate; and a lower protrusion that is integrally formed at the lower portion of the middle portion and contacts and supports one end of the spring.

[0008] Meanwhile, the spring is positioned between the inner surface of the stopper formed inside the sliding catch and the inner surface of the lower protrusion, and the tab is provided with a stopper that maintains contact with the outer surface of the lower protrusion and prevents the lower protrusion from rotating toward the tab.

[0009] The sub-rack module ejector of the present invention, configured as described above, has the advantage of maintaining a stable locking function by manufacturing the hook and the sliding catch separately and operating the stopper by rotating it by the elastic force of the spring, thereby preventing it from being easily opened even when an impact is applied from the outside.

[0010] Fig. 1 is a drawing showing a subrack module ejector according to the present invention installed.

[0011] Figures 2 and 3 are perspective views showing a module ejector for a subrack according to the present invention.

[0012] Fig. 4 is a diagram showing the operation of a module ejector for a subrack according to the present invention.

[0013] Hereinafter, an embodiment of a module ejector for a subrack according to the present invention will be described in detail with reference to the attached drawings.

[0014] Fig. 1 is a drawing showing an installed appearance of a module ejector for a subrack according to the present invention, Figs. 2 and 3 are perspective views showing a module ejector for a subrack according to the present invention, and Fig. 4 is a drawing showing an operation appearance of a module ejector for a subrack according to the present invention.

[0015]

[0016] A module ejector for a subrack according to the present invention comprises a lever (10), a tab (20) installed on the lever (10), a sliding catch (30) that slides along the lever (10), a hook coupling part (40) that is rotatably installed on the sliding catch (30), and a spring (50) installed inside the sliding catch (30).

[0017]

[0018] The above lever (10) is installed so that one end can rotate on a modular plug-in unit or printed circuit board (B).

[0019] Here, a face plate (A) is fixed to the end of the modular plug-in unit or printed circuit board (B). A slot (A1) is formed in this face plate (A) into which a hook (42) of a hook coupling portion (40) to be mentioned later is inserted or removed.

[0020]

[0021] The above tab (20) is installed on the other end of the lever (10), and the other end of the lever (10) is inserted and fixed into the tab (20). A stopper (21) extending toward the sliding catch (30) is provided protruding on the lower side of the side of the tab (20).

[0022]

[0023] The above sliding catch (30) penetrates the lever (10) and slides along the lever (10).

[0024] To explain in more detail, the sliding catch (30) is formed by combining two plastic panels, and a channel (31) through which a lever (10) passes is formed horizontally inside, and a stopper (32) that supports the end of a spring (50) is formed protruding, and a through hole (33) that communicates with the channel (31) and protrudes a hook coupling portion (40) is formed at the top.

[0025]

[0026] The above hook coupling part (40) is rotatably installed on the sliding catch (30), so that when the sliding catch (30) moves toward the opposite side of the tab (20), it rotates in one direction to enable coupling with the face plate (A), and when it moves toward the tab (20), it rotates in the other direction to enable disengagement with the face plate (A).

[0027] To explain in more detail, the hook coupling portion (40) is composed of a middle portion (41), a hook (42) integrally formed at the upper end of the middle portion (41), and a lower protrusion (43) integrally formed at the lower end of the middle portion (41).

[0028] The above-mentioned middle part (41) is penetrated horizontally by the lever (10), and the upper part is pin-connected to the upper part of the sliding catch (30). Therefore, the middle part (41) can rotate in one direction and the other direction around the pin, and moves together when the sliding catch (30) slides along the lever (10).

[0029] The above hook (42) protrudes out of the sliding catch (30) and rotates together with the middle portion (41). In detail, the hook (42) protrudes out of the sliding catch (30) through a through hole (33) formed at the top of the sliding catch (30). This hook (42) is inserted into a slot (A1) formed in the face plate (A) when the lever (10) rotates in one direction, and remains inserted into the slot (A1) when it rotates in the other direction and then is removed from the slot (A1).

[0030] When the hook (42) is inserted into the slot (A1) in this way, the hook (42) is caught and fixed on the face plate (A), so that the lever (10) is maintained in a folded state that does not allow it to rotate. When the hook (42) is removed from the slot (A1), the state in which it was caught and maintained in a folded state by the face plate (A) is released, so that the lever (10) can rotate freely.

[0031] The lower protrusion (43) is formed by extending downward from the lower end of the middle portion (41) with a narrower width than the middle portion (41). The inner surface of the lower protrusion (43) supports one end of the spring (50) and the outer surface maintains a state of contacting and supporting the stopper (21) of the tab (20), thereby preventing the lower protrusion (43) from rotating toward the tab (20) even when an external force is applied.

[0032]

[0033] The above spring (50) provides elastic force to restore the sliding catch (30) that has slid toward the tab (20) to its original position, and is located between the inner surface of the stopper (32) of the sliding catch (30) and the inner surface of the lower protrusion (43).

[0034] When an external force is applied to the sliding catch (30) to move it toward the tab (20), the spring (50) is compressed by the force applied to the stopper (32) of the sliding catch (30), and at this time, the lower protrusion (43) is pressed against the stopper (21) of the tab (20) and rotates in the opposite direction of the tab (20), thereby causing the hook (42) to rotate toward the tab (20).

[0035] In this way, the spring (50) is maintained in a compressed state between the stopper (32) of the sliding catch (30) and the lower protrusion (43) of the hook joint (40). When the external force applied to the sliding catch (30) is removed, the compressed spring (50) is extended, and the sliding catch (30) moves to the opposite side of the tab (20) by its restoring force.

[0036]

[0037] The operation process of the sub-rack module ejector of the present invention configured as described above is briefly described as follows.

[0038] First, the explanation begins with the hook (42) being inserted into the slot (A1) of the face plate (A) and fixed to the face plate (A), that is, in a folded state in which the lever (10) cannot naturally rotate.

[0039] When the worker places the index finger against the tab (20) in the folded state and presses the sliding catch (30) with the thumb to move it toward the tab (20), the spring (50) is compressed, and the lower protrusion (43) of the hook coupling portion (40) is pressed against the stopper (21) of the tab (20), causing the hook (42) to rotate toward the tab (20).

[0040] In this state, when the worker rotates the lever (10), the hook (42) is disengaged from the slot (A1) of the face plate (A), and when the hook (42) is disengaged from the slot (A1), the thumb that was pressing the sliding catch (30) is released. When the thumb is released from the sliding catch (30), the spring (50) is extended, and the sliding catch (30) is restored to its original position.

Claims

1. A lever (10) having one end rotatably installed on a plug-in unit or printed circuit board (B) with a face plate (A) fixed to the end; A tab (20) installed on the other end of the above lever (10); A sliding catch (30) that penetrates the above lever (10) and slides along the lever (10); A hook engaging portion (40) that is rotatably installed on the above sliding catch (30) so that when the sliding catch (30) moves to the opposite side of the tab (20), it rotates in one direction to enable engagement with the face plate (A), and when it moves toward the tab (20), it rotates in the other direction to enable disengagement with the face plate (A); A module ejector for a subrack, characterized by comprising a spring (50) that provides elasticity to restore a sliding catch (30) that has slid toward the tab (20) to its original position.

2. In claim 1, The above hook coupling portion (40) has a middle portion (41) that is connected to the upper portion of the sliding catch (30) by a pin while penetrating the lever (10) and rotating; A hook (42) formed integrally on the upper part of the above-mentioned middle part (41), protruding out of the above-mentioned sliding catch (30), rotating together with the above-mentioned middle part (41), and inserted into a slot (A1) formed in the above-mentioned face plate (A) or detached from the slot (A1) to be caught and fixed on the face plate (A) or to be released from the catch; A module ejector for a sub-rack, characterized by comprising a lower protrusion (43) formed integrally at the lower end of the above-mentioned middle portion (41) and supporting one end of the above-mentioned spring (50).

3. In claim 2, A module ejector for a subrack, characterized in that the spring (50) is positioned between the inner surface of the stopper (32) formed inside the sliding catch (30) and the inner surface of the lower protrusion (43), and the tab (20) is provided with a stopper (21) that maintains a state of contacting and supporting the outer surface of the lower protrusion (43) to prevent the lower protrusion (43) from rotating toward the tab (20).

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