JP2534469Y2 - connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector provided with a contact which is connected to and separated from an external contact formed on the surface of a card.

[0002]

2. Description of the Related Art A connector used for writing various kinds of information on a card such as an IC card and reading out information stored in the card is used when a card is inserted into a card set space. The contact of the connector resiliently contacts the external contact of the card, and at the stage of inserting the card into or removing the card from the space, there is a device designed so that the contact on the connector side does not rub the surface of the card.

For example, in a connector described in Japanese Utility Model Laid-Open Publication No. 63-4087, a swing member is attached to a body having a guide portion wider than the card thickness, and a card inserted through the guide portion is inserted into a card set space. At the end of the card, the leading end of the card pushes down one end of the swinging member and raises the other end of the swinging member, thereby pushing up the card at the other end of the swinging member, and Are pressed against the contacts on the body side to make elastic contact.

[0004] Further, the contact piece portion having the contact and the terminal portion are formed of one metal piece, and when the card is inserted into the card set space, the entire metal piece moves to move the contact piece portion. There is also known a device in which a contact is elastically connected to an external terminal of a card.

[0005]

However, in the former connector described in the above publication, when the card is not inserted, the contact on the connector side protrudes into the space for the card set, and the guide portion is larger than the card thickness. When inserting or removing a card through the guide part, the card surface often rubs against the contacts on the connector side, which not only makes the card surface easily scratched, There is also a concern that the contacts on the connector side may be adversely affected.

Also, when a card is inserted into the card set space or when the card is pulled out of the card set space, there is a concern that the card may move in its thickness direction and the insertion / extraction feeling may be impaired.

On the other hand, in the latter connector, a contact piece and a terminal are formed on a metal piece that moves in the thickness direction of the card. When the contact piece moves, the terminal moves together with the contact. A flexible wiring board is required to connect to the circuit pattern of the board, which not only increases the number of components and increases the cost, but also requires a large space for mounting on the wiring board and increases the mounting density of various components There was a problem that it became difficult.

The present invention has been made in view of the above circumstances, and the contact on the connector side resiliently contacts the external contact of the card inserted into the card set space without moving the card in the thickness direction. At the stage of inserting the card into the card or removing the card from the space, the contact on the connector side should not scratch the surface of the card, so that the card surface may be scratched or the contact side of the connector may be adversely affected. It is an object of the present invention to provide a connector which can be prevented from reaching.

Further, the present invention provides a wiring board in which, even when the contact piece and the terminal are formed of one metal member, the contact only moves in the thickness direction of the card and the terminal does not move. It is an object of the present invention to provide a connector that does not require a flexible wiring board when mounting on a board.

[0010]

A connector according to the present invention has a body, a card-set space formed in the body, and an external terminal formed on the body, which is inserted into and removed from the space and has a surface. A guide portion slidably in contact with an end portion in the width direction of the card, a contact piece holder disposed outside the space in a direction crossing the space, and rotatably supported by the body; and integrated with the contact piece holder. And a lever portion that swings back and forth between the inside and the outside of the space, and a lever portion that is provided on the lever portion and is pressed by a tip end portion of a card inserted into the space to move the lever portion into the space. A guide portion for generating a force in a direction to be released to the outside, and a space protruding from the contact piece holding member in a card removing direction, and the lever portion is inserted into the space by the forward rotation of the contact piece holding member. Escaped to the outside of the lever Is released into the space by the reverse rotation of the contact holding member when the contact is held in the space, and is provided with a contact corresponding to the external contact. Comprising a terminal part which is electrically connected,
The terminal portion is fixed to the body at a position away from the contact holding member, and at least the metal member having elasticity at the contact portion and the contact holding portion so that the lever portion protrudes into the space. An elastic member for elastically urging the body.

[0011]

In the connector of this configuration, when a card is not inserted into the card set space (in a state where the card is not inserted), the lever is pushed into the space by the urging force of the elastic member, and the contact is made. One of the contacts is released to the outside of the space.

When the card is inserted along the guide portion in a state where the card is not inserted, the card reaches the space without rubbing the surface of the card with the contact, and the card is set. Then, the guide portion of the lever portion is pressed by the leading end portion of the card that has reached the space, and the lever portion is released to the outside of the space. The contact of the contact piece that is about to rush into contact with the external contact of the card.

In the card setting state, when the card is slightly pulled out in the card-drawing direction in order to pull out the card from the card setting space, the lever portion enters into the space by the urging force of the elastic member, and the contact piece is held accordingly. Due to the forward rotation of the body, the contact of the contact piece separates from the external terminal of the card and escapes to the outside of the space. Thereafter, the card is pulled out without its surface rubbing against the contact. Further, since the terminal portion is fixed to the body, the terminal portion does not move even if the contact piece moves in the direction of entering the card setting space or in the direction of being released from the space.

[0014]

1 and 2 are sectional views of a main part of a connector according to an embodiment of the present invention, and FIG. 3 is a plan view of the same.

A body 1 made of a synthetic resin having excellent insulating properties is provided with a card set space 2 and a contact piece accommodating space 3 located outside the card set space 2, and sandwiches the card set space 2. A groove-shaped guide portion 4 is formed on both sides and both sides of a card insertion / extraction opening (not shown). The guide portion 4 has a bottom surface 41 and an upper surface 42 facing the bottom surface. When the card C is inserted or removed along the guide portion 4, the widthwise end of the card C extends between the bottom surface 41 and the upper surface 42. You will be guided straight without being so big. That is, the distance between the bottom surface 41 and the top surface 42 is
Is set as small as possible so as not to hinder the smooth insertion / extraction operation of the card C. When the card C is inserted / extracted, one or both of the bottom surface 41 and the upper surface 42 is provided on the lower surface or the upper surface of the end of the card C. The surface slides.

The contact piece accommodating space 3 has a card set space 2.
The two contact piece holders 5 and 6 made of synthetic resin having excellent insulating properties are disposed in parallel in a direction crossing the axis, and the support shafts 51 and 61 at both ends of the contact piece holders 5 and 6 are connected to the body 1. Are fitted and supported in holes 13 and 14 of brackets 11 and 12 projecting into contact piece receiving space 3. Therefore, the contact piece holders 5 and 6 are rotatably supported by the body 1 via the support shafts 51 and 61 and the brackets 11 and 12, respectively.

Each of the contact piece holders 5 and 6 is integrally provided with lever portions 52 and 62 projecting in the card insertion direction X. Guide portions 53 and 63 each having an inclined surface having a downward slope toward the direction X are provided.
The guide portions 53 and 63 of the lever portions 52 and 62 are arranged in the lateral direction M.

Each of the contact piece holders 5, 6 has a contact piece portion 71, 81 projecting in the card removal direction Y. Arc-shaped contacts 72, 82 are formed at the tips of the contact pieces 71, 81, and the contacts 7, 82 are formed.
The positions 2 and 82 are separated by a predetermined distance in the card insertion and removal directions X and Y. Terminal portions 74, 84 extend from the contact piece portions 71, 81 via short-circuit piece portions 73, 83, and these terminal portions 74, 84 are located at positions away from the contact piece holders 5, 6. It is fixed to the body 1 in an embedded manner. The contact pieces 71, 81 and the terminals 74, 84 are connected to the short pieces 73, 8 respectively.
3 and are electrically connected to each other.
The reference numeral 81, the short-circuit pieces 73, 83, and the terminals 74, 84 are formed by long and thin metal members 7, 8 having elasticity as a whole. The boundary portions 75 and 85 between the embedded portions of the contact pieces 71 and 81 in the contact piece holders 5 and 6 and the short-circuit pieces 73 and 83 coincide with the rotation centers of the contact piece holders 5 and 6. At the same time, the short-circuit piece 7
Stealing recesses 54 and 64 are formed on the contact piece holders 5 and 6 on the sides 3 and 83 to extend in the circumferential direction.
The rotation of the contact piece holders 5, 6 with respect to the short-circuit pieces 73, 83 within a certain range is permitted by the short-circuit pieces 73, 83.

In the above, the lever portions 52, 62 and the contact pieces 71, 81 are provided in the positional relationship described below. That is, when the contact piece holders 5 and 6 rotate in the forward directions R1 and R2, the levers 52 and 62 protrude into the card setting space 2 as shown in FIG.
When the contact points 72 and 82 of the pair 1 and 81 are released to the outside of the card setting space 2 and the contact piece holders 5 and 6 rotate in the opposite directions L1 and L2, as shown in FIG. While being released to the outside of the card set space 2, the contacts 72 and 82 of the contact pieces 71 and 81 are inserted into the card set space 2 (indicated by phantom lines). Is provided.

As shown in FIG. 3, spring members 9 and 10, which are examples of elastic members, are interposed between the contact piece holders 5 and 6 and the brackets 11 and 12, respectively. 10, the contact piece holders 5, 6 are
62 is constantly urged in the direction in which it enters the card setting space 2, that is, in the forward directions R1 and R2.

In the connector described above, the contact 7
Four contact pieces 5, 6 having 2, 82 are provided in the lateral direction M at predetermined intervals. On the other hand, as shown in FIG. 3, the card C is provided with four external terminals C1... C2 at two locations on the upper surface in the insertion and removal directions X and Y, and these external terminals C1. The contacts 72, 82 of the contact pieces 71, 81 correspond to C2.

According to the connector configured as described above, when the card C is not inserted into the card set space 2 as shown in FIG.
The levers 52 and 62 are pushed into the space by the urging force of
2, 82 are released outside the space.

When the card C is inserted along the guide portion 4 in such a state where the card is not inserted, the card C is inserted.
Reaches the card set space 2 without its surface rubbing against any of the contacts 72 and 82 spaced in the insertion and removal directions X and Y. Then, the leading end of the card C which has reached the card setting space 2 is guided by the guide portions 5 of the lever portions 52 and 62.
When the levers 3 and 63 are pressed, a force is applied in a direction to release the levers 52 and 62 to the outside of the card setting space 2, and the levers 52 and 62 are scooped up and resist the urging force of the spring bodies 9 and 10. To the outside of the card set space 2 at the same time, and the accompanying opposite directions L1, L2 of the contact piece holders 5, 6
The contact points 72 and 82 of the contact pieces 71 and 81 that are about to enter the inside of the card setting space 2 by the rotation of the card C elastically contact the external contacts C1 and C2 of the card C. At this time, the contact 72,
82 rubs with the external terminals C1 and C2 in a short range, but the rubbing at this time is preferable because it serves to clean the surfaces of the external terminals C1 and C2 and the contacts 72 and 82. In this state, the levers 52 and 63 resiliently come into contact with the card C by receiving the returning force of the spring bodies 9 and 10, and at the same time, the elasticity of the contact pieces 71 and 82 increases.
Since the card C is added to the card C via the slots 82, there is an advantage that the card C is securely held at the set position.

In the above-described card setting state, when the card C is slightly pulled out in the withdrawing direction Y in order to pull out the card C from the card setting space 2, the levers 52, 62 are pushed by the urging forces of the spring bodies 9, 10 so that the card portions are moved. The contact pieces 7 and 81 are inserted into the setting space 2 and the contact pieces 71 and 81 are rotated by the rotation of the contact piece holders 5 and 6 in the forward directions R1 and R2.
2 and 82 are separated from the external terminals C1 and C2 of the card C and escaped to the outside of the card setting space 2. Thereafter, the card C is pulled out along the guide portion 4 without the surface of the card C rubbing against the contacts 72 and 82.

When such a card is inserted or removed, the contact piece holders 5 and 6 rotate in the forward directions R1 and R2 or move in the reverse directions L and R2.
When the metal members 7 and 8 are elastically deformed at the boundary portions 75 and 85 between the contact pieces 71 and 81 and the short pieces 73 and 83 when rotating to L1 and L2, the short pieces 73 and 83 are There is almost no displacement, and the terminal portions 74 and 84 are not displaced at all. Therefore, the terminal portions 74 and 84 can be directly soldered to a circuit pattern (not shown) of the wiring board.

In this embodiment, a connector in which four contact pieces 71 and 81 are arranged in the horizontal direction M has been described, but the number and arrangement of the contact pieces 71 and 81 are not limited to the embodiment. The metal members 7 and 8 are formed by stamping a metal plate to form contact pieces 71 and 81, short-circuit pieces 73 and 83, and terminal pieces 74 and 8 respectively.
Although 4 is provided, the contact pieces 71 and 81 and the terminal parts 74 and 84 may be electrically connected to each other by another member such as a conductive wire.

[0027]

According to the present invention, when the card is inserted or removed, the card does not move in the thickness direction and the contact of the connector side does not rub against the surface of the card or the external terminals. At the same time, the contacts are not adversely affected by rubbing. In addition, by changing the length of the lever portion, there is the advantage that the timing when the contact resiliently contacts the external terminal of the card can be easily adjusted.

Further, since the terminal portion is fixed to the body, the connector itself can be directly attached to the wiring board and the terminal portion can be connected to the circuit pattern of the wiring board. Not only does this not only increase the mounting density of various components on the circuit board, but also eliminates the need to use a flexible wiring board for connection between the terminal portion and the circuit pattern of the wiring board, thereby reducing the number of components and contributing to cost reduction.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a connector according to an embodiment of the present invention in a state where a card is not inserted.

FIG. 2 is a sectional view of a main part of the connector according to the embodiment of the present invention in a card setting state.

FIG. 3 is a main part plan view of the connector according to the embodiment of the present invention in a card setting state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Space for card set 4 Guide part 5, 6 Contact piece holder 7, 8 Metal member 9, 10 Spring body (elastic member) 52, 62 Lever part 53, 63 Guide part 71, 81 Contact piece 72, 82 Contact 74, 84 Terminal part R1 Rotation direction of contact piece holder (forward direction) R2 Rotation direction of contact piece holder (reverse direction) C card C1, C2 External terminal Y Card removal direction

Claims (1)

(57) [Scope of request for utility model registration] 1. A body, a card setting space formed in the body, and a widthwise end of a card formed in the body, which is inserted into and removed from the space and has an external terminal on the surface. A guide portion, a contact piece holder disposed in a direction transverse to the space outside of the space, and rotatably supported by the body; and provided integrally with the contact piece holder; And a guide provided in the lever portion, which is pressed by the tip of the card inserted into the space to generate a force in a direction to release the lever portion to the outside of the space. Part, is protruded from the contact piece holder in the card ejection direction, and when the lever part is inserted into the space, the contact piece holder is rotated in the forward direction to escape to the outside of the space, and the lever part is When escaped outside the above space A contact portion provided with a contact corresponding to the external contact and protruding into the space by the reverse rotation of the contact piece holding member, and a terminal portion electrically connected to the contact portion; A terminal member is fixed to the body at a position distant from the piece holder, and a metal member having elasticity at least in the contact piece part, and a contact piece holder so that the lever part projects into the space. And a resilient member for resiliently urging the connector.