JPH0573990U - Card removal device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a small card removal device that has good operability when removing the daughter board from the card. [Structure] A box-shaped casing 10 having an open front, a card 20 inserted from the front side of the casing and connected to a connector provided inside the casing, and a front end portion of the card. Daughter board 3 attached to the connector via the connector
0, a shaft support portion 41 pivotally supported by the card, a housing contact portion 42 that contacts the edge of the housing when the card is rotated about the shaft support portion in the housing, and the shaft support portion A housing pull-out portion 43 extending to the opposite side of the housing abutting portion with the board sandwiched therebetween, and a board abutting portion that abuts against the edge of the daughter board when the daughter board is attached to the card and is rotated about the pivot support portion. 44 and a pull-out portion 40 having a board pull-out portion 45 extending from the board contact portion in the direction opposite to the shaft support portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a removal mechanism used when a card is removed from a unit that houses a printed circuit board, and more particularly to improvement of a structure suitable for a card having a daughter board.

[0002]

[Prior Art]

 The applicant of the present invention has proposed a mechanism for removing a card from a unit in, for example, Japanese Utility Model Laid-Open No. 58-184889. In addition, Japanese Patent Application Laid-Open No. 2-27671 proposes a card having a daughter board (terminal block). A card with such a daughter board has a large number of connecting pins, and as a result, a large pulling force is required to pull it out of the connector, making it difficult to pull it out with bare hands. Therefore, a pull-out mechanism using the lever action is adopted.

[0003]

[Problems to be solved by the device]

 However, the daughter board may be removed from the card in some cases, and in this case as well, the removal force is increasing. If you replace only the daughter board, pulling it out with your bare hands could accidentally disconnect the entire card from the connector, which could cause an unexpected failure of the entire system. On the other hand, it is conceivable to provide a special mechanism for removing the daughter board, but there was the problem that the device would become larger accordingly. The present invention solves such a problem, and an object thereof is to provide a small card removing device which has good operability when removing the daughter board from the card.

[0004]

[Means for Solving the Problems]

 MEANS TO SOLVE THE PROBLEM This invention which achieves the said objective WHEREIN: The box-shaped housing | casing 10 with which the front surface is opened, and the card 20 inserted from the front side of this housing and connected with the connector provided in the said housing | casing. , A daughter board 30 attached to the front end of this card via a connector, a shaft support 41 supported by the card, and a center of the shaft support in the state where the card is housed in the housing. A housing contact portion 42 that contacts the edge of the housing at a first angle when rotated, a housing extraction portion 43 that extends on the side opposite to the housing contact portion with the shaft support portion interposed therebetween, When the daughter board is mounted on the card and rotated about the shaft support, the board contact part 44 contacts the edge of the daughter board at a second angle, and the direction from the board contact part opposite to the shaft support part. A pull-out section 40 having a board pull-out section 45 extended to It is provided.

When the card is pulled out of the housing, the housing contact portion is brought into contact with the edge of the housing, and the card is detached from the connector by the force applied to the housing pull-out portion. When removing the card from the card, the board abutting part is brought into contact with the edge of the daughter board, and the daughter board is detached from the connector by the force applied to the card operating part.

[0006]

[Action]

 The withdrawal part is attached to the card by a shaft support. The housing abutting part and the housing pull-out part exert a leverage action and are used when pulling out the card from the housing. The board contact part and the board pull-out part are used when removing the daughter board from the card. Since the insertion / removal part has both functions as a single unit, the device can be compact.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration perspective view showing an embodiment of the present invention. In the figure, the casing 10 is of a box type and has a structure disclosed in, for example, Japanese Utility Model Laid-Open No. 64-29888, which is a so-called nest structure. The card 20 is a printed circuit board on which an electronic circuit is mounted and is inserted through the opening on the front of the housing. The daughter board 30 is attached at a right angle to the front end surface of the card 20, and for connection, the connection connector 31 provided on the back surface and the connection connector 21 on the card 20 side are used. The removal sections 40 are provided on both edges of the front short side of the card 20, and have a function of removing the card 20 from the housing 10 and a function of removing the daughter board 30 from the card 20. It should be noted that the daughter board 30 may be of a case shape that is firmly fixed to the connector 21, and a printed circuit board is normally housed inside this case.

FIG. 2 is an enlarged view of a main part for explaining the details of the extraction unit 40. Regarding the basic shape of the pulling-out portion 40, one of the rod-shaped members is the housing pulling-out portion 43 and the other is the board pulling-out portion 45. A shaft support portion 41 is provided at the triangular tip end attached to the rod-shaped member. The shaft support 41 rotatably supports the removal unit 40 with respect to the card 20, and includes, for example, a shaft and a through hole. When the card 20 is housed in the housing 10, the housing abutting portion 42 is a half that abuts against the edge of the housing 10 at a first angle (θ1) when the card 20 is rotated about the shaft support portion 41. It is a circular member. The housing pull-out portion 43 is a lever that extends toward the side opposite to the housing contact portion 42 with the shaft support portion 41 interposed therebetween. The board contact portion 44 is a semi-circular member that contacts the edge of the daughter board 30 at a second angle (θ2) when the daughter board 30 is rotated about the shaft support portion 41 with the daughter board 30 mounted on the card 20. Here, it is located on the opposite side of the housing contact portion 42. The board pull-out portion 45 is a lever extending from the board contact portion 44 in the direction opposite to the shaft support portion 41.

In the normal mounting state, the removal portion 40 is located in a space between the housing 10 and the board 30 where the housing contact portion 42 and the board contact portion 44 are located. There is no tress.

The operation of the apparatus thus configured will be described. 3A and 3B are configuration diagrams when the card 20 is removed from the housing 10. FIG. 3A is a neutral state, FIG. 3B is a removal process, and FIG. When the housing pull-out portion 43 is rotated in the direction of arrow A, the housing contact portion 42 contacts the edge of the housing 10 at the first angle (θ1). Further, when the housing pull-out portion 43 is rotated in the direction of arrow A, the connector on the rear surface of the card 20 and the connector on the housing 10 side are released, and the card 20 can be pulled out in the direction of arrow B.

FIG. 4 is a configuration diagram when the daughter board 30 is removed from the card 20. (A) is neutral, (B) is in the middle of removal, and (C) is after removal. When the board pull-out portion 45 is turned in the direction of arrow C, the board contact portion 44 contacts the edge of the daughter board 30 at the second angle (θ2). Further, when the board pull-out portion 45 is rotated in the direction of arrow C, the engagement between the connection connectors 21 and 31 is released, and the daughter board 30 can be pulled out in the direction of arrow D. At this time, a force in the arrow E direction acts on the card 20 as a reaction force. Since this reaction force acts in the direction of promoting the engagement between the connector on the back surface of the card 20 and the connector on the housing 10 side, there is no risk of accidentally disengaging the both.

[0012]

[Effect of the device]

 As described above, according to the present invention, the removal unit 40 has both the function of removing the card 20 from the housing 10 and the function of removing the daughter board 30 from the card 20, so that the toterboard is removed from the card. It has a practical effect that it is easy to operate and is compact.

[Brief description of drawings]

FIG. 1 is a configuration perspective view showing an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part for explaining the details of a pull-out section 40.

FIG. 3 is a configuration diagram when the card 20 is removed from the housing 10.

FIG. 4 is a configuration diagram when the daughter board 30 is removed from the card 20.

[Explanation of symbols]

 10 housing 20 card 30 daughter board 40 removal part 41 shaft support part 42 housing contact part 43 housing extraction part 44 board contact part 45 board extraction part

Claims (1)

[Scope of utility model registration request] 1. A box-shaped housing 10 having an open front surface, a card 20 inserted from the front side of the housing and connected to a connector provided inside the housing, and a front surface of the card. The daughter board 30 attached to the side end portion through the connector, the shaft support portion 41 pivotally supported by the card, and the first support when the card is housed in the housing and rotated about the shaft support portion. The housing contact portion 42 that contacts the edge of the housing at an angle of, the housing pull-out portion 43 that extends on the side opposite to the housing contact portion with the shaft support portion interposed, and the daughter board are mounted on the card. It has a board contact portion 44 that contacts the edge of the daughter board at a second angle when it is rotated about the shaft support portion in this state, and a board pull-out portion 45 that extends from this board contact portion in the direction opposite to the shaft support portion. The extraction unit 40 and When removing the card from the case, the case contact part is brought into contact with the edge of the case, the card is removed from the connector by the force applied to the case pulling part, and when the daughter board is removed from the card A card removing device, wherein the contact portion is brought into contact with the edge of the daughter board, and the daughter board is detached from the connector by the force applied to the card operating portion.