US 6,319,029 B2Grant
Card connector having IC card ejection mechanism
Issue Date:2001-11-20
•6 Claims
•16 Drawing Sheets
Abstract
The present invention provides a card connector having a mechanism for ejecting a card, wherein, without weakening an energizing force of a spring member for energizing a slide member, the card connector can prevent the card from being popped out of the card connector by the energizing force of the spring member and allows the card to be easily taken out. The card connector includes: a slide member that is slidable in directions in which a card loaded in and unloaded from a housing is inserted and ejected; a return spring for energizing the slide member in the direction in which the card is ejected; a locking member for holding the slide member in the position in which the card is loaded, against an energizing force of the return spring; and a push rod, movably disposed between a standby position and a push-in position, for unlocking the locking member by a pressing operation to move the slide member to the position in which the card is ejected, wherein the push rod is provided with a stopper for blocking the slide member at the card eject position from moving in the card eject direction when the push rod is pressed up to the push-in position, wherein the stopper permits the slide member at a standby position to move in the card eject direction.
Metadata
Assignee
- Alps Electric Co., Ltd.
Inventor
- Toru Nishioka
Application Information
Application Number:US 09/753,633
Filing Date:2001-01-02
Priority Date:2000-02-04
Art Unit:7
Classifications
IPC:
H01R 1362
Field of Search:
439159439160439328439157
Patent Drawings (16 sheets)
Description
Background of the Invention
[0002] 1. Field of the Invention
[0003] The present invention relates to the construction of a card connector used with an IC card used as a storage medium of personal computers or the like and a CF (compact flash) card used in a digital camera and other electronic apparatuses.
[0004] 2. Description of the Prior Art
[0005] An IC card connector is commonly used as an additional storage unit of a personal computer. An IC card comes into widespread use as a storage medium of the IC card connector.
[0006] The IC card is loaded in the IC card connector to write and read necessary information. To increase operability in loading and unloading the IC card, some IC card connectors have an ejection mechanism for ejecting the IC card.
[0007] It is known that the conventional IC card ejection mechanism includes a slide member for carrying an IC card, a locking member for holding the slide member in an IC card loaded position, and a spring member for energizing the slide member in an eject direction when the locking member is unlocked, wherein when the IC card is ejected as the slide member moves in the eject direction, the IC card is pushed out in the eject direction by an energizing force of the spring member.
[0008] However, the above-described conventional IC card connector has the following problem in terms of construction. Since an IC card is energized in an eject direction along with a slide member for carrying the IC card, by an energizing force of a spring member for energizing the slide member in the eject direction, the energizing force of the spring member causes the IC card to pop out of the IC card connector.
[0009] Although an energizing force of the spring member can be weakened to prevent an IC card from popping out, the weakened energizing force of the spring member would make it difficult to obtain strokes required to eject the IC card, making it difficult to take out the IC card.
Summary of the Invention
[0010] For this reason, the present invention intends to solve the above problem by providing a card connector having a mechanism for ejecting a card, wherein, without weakening an energizing force of a spring member for energizing a slide member, the card connector can prevent the card from being popped out of the card connector by the energizing force of the spring member and allows the card to be easily taken out.
[0011] To solve the above problems, a card connector of the present invention, as a first means, includes: a slide member that is slidable in directions in which a card loaded in and unloaded from a housing is inserted and ejected; a return spring for energizing the slide member in the direction in which the card is ejected; a locking member for holding the slide member in the position in which the card is loaded, against an energizing force of the return spring; and a push rod, movably disposed between a standby position and a push-in position, for unlocking the locking member by a pressing operation to move the slide member to the position in which the card is ejected, wherein the push rod is provided with a stopper for blocking the slide member at the card eject position from moving in the card eject direction when the push rod is pressed up to the push-in position, wherein the stopper permits the slide member at a standby position to move in the card eject direction.
[0012] As a second means, a coil spring is provided which abuts one end of the slide member when the slide member moves in the card eject direction, and the slide member is held in the card eject position by the coil spring against an energizing force of the return spring.
[0013] As a third means, the push rod is returned from the push-in position to the standby position by the coil spring.
[0014] As a fourth means, the card is movable in the card eject direction along with the slide member, and the coil spring is compressed when the slide member has moved to the card eject position, whereby the slide member moves in the card eject direction and the card can be pulled out.
[0015] As a fifth means, the locking member is disposed so that it can turn in a direction perpendicular to a flat surface of the card loaded in and unloaded from the housing by a pressing operation of the push rod, and a spring piece for energizing the locking member is formed on a cover member of the housing.
[0016] As a sixth means, the push rod is formed by bending a thin metallic plate.
Brief Description of the Drawings
[0017] A preferred embodiment of the present invention will be described in detail based on the followings, wherein:
[0018] FIG. 1 is a plan view of a card connector of the present invention;
[0019] FIG. 2 is a plan view of the same;
[0020] FIG. 3 is a plan view of a housing of the card connector;
[0021] FIG. 4 is a front view of the housing;
[0022] FIG. 5 is a plan view of a card;
[0023] FIG. 6 is a bottom view of the card;
[0024] FIG. 7 is a plan view of a slide member of the card connector;
[0025] FIG. 8 is a side view of the slide member;
[0026] FIG. 9 is a plan view of an eject arm of the card connector;
[0027] FIG. 10 is a bottom view of the eject arm;
[0028] FIG. 11 is a plan view of a slide unit of the card connector;
[0029] FIG. 12 is a bottom view of the slide unit;
[0030] FIG. 13 is a plan view of a locking member of the card connector;
[0031] FIG. 14 is a side view of the locking member;
[0032] FIG. 15 is a vertical cross-sectional view showing a mounting relationship between the locking member and the housing;
[0033] FIG. 16 is a vertical cross-sectional view showing a mounting relationship between the locking member and the housing;
[0034] FIG. 17 is a plan view showing a state in which the slide unit is mounted in the housing;
[0035] FIG. 18 is a plan view of a push rod;
[0036] FIG. 19 is a side view of the push rod
[0037] FIG. 20 is a plan view showing a state in which the push rod is mounted in the housing;
[0038] FIG. 21 is a plan view of a cover;
[0039] FIG. 22 is a side view of the cover
[0040] FIG. 23 is a side view showing a mounting relationship between the lock member and the cover;
[0041] FIG. 24 is a plan view showing an initial state in which the card is inserted in the housing, and a side view showing the locking member and the slide member in that state;
[0042] FIG. 25 is a plan view showing a state in which the card is being inserted, and a side view showing the locking member and the slide member in that state;
[0043] FIG. 26 is a plan view showing a state in which the card is being inserted immediately before the slide member and the locking member are engaged in each other, and a side view showing the locking member and the slide member in that state;
[0044] FIG. 27 is a plan view showing a state in which the card has been inserted, and a side view showing the locking member and the slide member in that state;
[0045] FIG. 28 is a plan view showing a state in which the slide member is locked when the card has been inserted, and a side view showing the locking member and the slide member in that state;
[0046] FIG. 29 is a plan view showing a state in which the slide member is locked, and a side view showing the locking member and the push rod in that state;
[0047] FIG. 30 is a plan view showing a state in which the slide member is unlocked by pressing the push rod, and a side view showing the locking member and the push rod in that state;
[0048] FIG. 31 is a plan view showing a state in which the locked slide member is unlocked and the card has been ejected to an eject position, and a side view showing the locking member and the push rod in that state;
[0049] FIG. 32 is a plan view showing a state in which the card is pulled toward the operator at the card eject position, and a side view showing the locking member and the push rod in that state;
[0050] FIG. 33 is a plan view showing a state in which the eject arm turns in the eject direction when the card is being ejected, and a side view showing the locking member and the push rod in that state;
[0051] FIG. 34 is a plan view showing a state in which the card is ejected disengaged from a second arm part, and a side view showing the locking member and the push rod in that state; and
[0052] FIG. 35 is a plan view showing a state in which a reversed card is inserted.
Description of the Preferred Embodiments
[0053] Hereinafter, one embodiment of the present invention is shown in FIGS. 1 to 35. FIG. 1 is a plan view showing a card connector of the present invention; FIG. 2 is a plan view of the same; FIG. 3 is a plan view of a housing; FIG. 4 is a front view of the same; FIG. 5 is a plan view of a card; FIG. 6 is a bottom view of the same; FIG. 7 is a plan view of a slide member; FIG. 8 is a side view of the same; FIG. 9 is a plan view of an eject arm; FIG. 10 is a bottom view of the same; FIG. 11 is a plan view of a slide unit; FIG. 12 is a bottom view of the same; FIG. 13 is a plan view of a locking member; FIG. 14 is a side view of the same; FIGS. 15 and 16 are views showing a mounting relationship between the locking member and the housing; FIG. 17 is a view showing a state in which the slide unit is mounted in the housing; FIG. 18 is a plan view of a push rod; FIG. 19 is a side view of the same; FIG. 20 is a view showing a state in which the push rod is mounted in the housing; FIG. 21 is a plan view of a cover; FIG. 22 is a side view of the same; and FIG. 23 is a view showing a mounting relationship between the lock member and the cover.
[0054] In the drawings, the housing 1 is nearly rectangularly made of an insulating material such as a synthetic resin and is provided with an internal housing part 1ain which an IC card 3 to be described later is inserted and housed. Plural contact terminals 2amade of conductive metallic materials are disposed on the inside bottom of the housing part 1a, and at the other ends of the contact terminals 2aare formed connection terminals 2bthat are guided outwardly of the housing 1 and are connected with a circuit pattern such as an external circuit board not shown.
[0055] Plural engaging claws 1bfor engaging a cover 10 to be described later are provided in the circumference of the housing 1.
[0056] At one end of the housing 1 is provided a concave flat part 1cadjacent to the housing part 1a, and a slide member 6 to be described later is disposed in the flat part 1c. At a lower end of the flat part 1cis provided a concave housing part 1din which a coil spring 8 to be described later is housed, and on the upper surface of the housing 1, in facing relation with the concave housing part 1d, is provided a concave anchoring part 1efor anchoring a return spring 4 for returning the slide member 7.
[0057] At an upper end of the flat part 1cis provided an anchoring slot if for anchoring a locking member 5 to be described later, and at one side of the flat part 1cis formed a guide wall 1gfor guiding a push rod 9.
[0058] A nearly trapezoidal cam part 1his projectingly provided at the center of the flat part 1c. By a cam wall at the outer circumference of the cam part 1h, a cam pin 7dprovided in an eject arm 7 engaged in the slide member 6 to be described later is guided, and the cam pin 7dmoves along the cam wall at the outer circumference of the cam part 1has the slide member 6 moves, whereby the turning of the eject arm 7 is restrained. On the upper surface of the cam part 1hof the flat part 1cis provided a flat upper wall part 1iin a direction perpendicular to a card insert direction.
[0059] The card 3, which internally houses integrated circuits (IC), is widely used as a storage medium. At the bottom of the card 3, plural contact parts 3aare formed at one end of the card 3, and the contact parts 3acontact the plural contact terminals 2aprovided in the housing part 1aof the housing 1, and thereby various types of information processing are performed with an electronic apparatus externally connected.
[0060] The card 3 is, at one side thereof, provided with a concave part 3bin which a second arm part 7bof the eject arm 7 to be described later is engaged.
[0061] The locking member 5 is made of an insulating material such as a synthetic resin, and at a nearly central position of the locking member 5 are formed a pair of anchoring shafts 5aanchored to the anchoring slot 1fof the housing 1. A hooked anchoring part 5cthat can be engaged in and disengaged from the slide member 6 to be described later is formed at the tip of an anchoring arm part 5bextended from the center. A slant part 5dis provided at the tip of the anchoring part 5c, and an unlocking operation part 9cof the push rod 9 abuts the slant part 5d, whereby the anchoring part 5cturns with the anchoring shaft 5aas a fulcrum.
[0062] In this case, the locking member 5 is disposed so that it can turn in a direction (vertical direction) perpendicular to the flat surface of the card 3 engaged in and disengaged from the housing 1. This construction requires no space for movement in horizontal directions, contributing to reducing the width of the housing 1.
[0063] The slide member 6, which is made of an insulating material such as a synthetic resin, has, at one end thereof, an engaging arm part 6bhaving an engaging projection part 6aengaged with the anchoring part 5cof the locking member 5. In parallel with the anchoring arm part 6bis formed an anchoring shaft 6cat which one end of the return spring 4 anchored to the housing 1 is anchored. At the other end of the slide member 6, in facing relation with the anchoring shaft 6c, is formed a stopper face 6dcomprising a wide plane abutted against a stopper 9eof the push rod 9 to be described later, and further the stopper face 6dis provided with a projectingly stop projection part 6e. The projectingly stop project part 6eabuts a coil spring 8 to be described later housed in the concave anchoring part 1dof the housing 1.
[0064] An opening 6fis provided at a nearly central position of the slide member 6, and at the center of the opening 6fis projectingly disposed a shaft part 6gin which an eject arm 7 to be described later is turnably fitted.
[0065] The slide member 6, disposed in the flat part 1cof the housing 1, is mounted so that it can move vertically within the housing 1, that is, in the directions in which the card 3 is inserted and ejected, while being energized by the return spring 4.
[0066] The eject arm 7 is made of an insulating material such as a synthetic resin and formed in shape similar to the U character, and has first and second arm parts 7aand 7bextended outwardly from the base. The first arm part 7ais provided to be engaged in the front end of the card 3 when the card 3 is inserted. The second arm part 7bhas an tip part whose shape is nearly circular, and is engaged with the concave part 3bformed at one side of the card 3 and is engaged or disengaged while turning within the concave part 3b.
[0067] The eject arm 7 has a shaft hole 7cformed at the center thereof, and the shaft hole 7cis fitted into the shaft part 6gformed in the slide member 6, whereby the eject arm 7 can turn around the shaft part 6g. At one side of the eject arm 7 is provided a pin-shaped cam pin 7dmoving along the cam wall of the cam part 1hprovided on the housing 1.
[0068] FIGS. 11 and 12 show a slide unit in which the slide member 6 is fitted with the eject arm 7.
[0069] The coil spring 8, which is a compression spring made of a metallic material and housed in the concave anchoring part 1dof the housing 1, is formed to position the slide member 6 in a card eject position against an energizing force of the return spring 4 when the slide member 6 moves in a card eject direction.
[0070] The coil spring 8 has a function as an energizing member for energizing the slide member 6 in the insert direction and a function to return the push rod 9 from a push-in position to a standby position.
[0071] The push rod 9, which is formed by bending a thin metallic plate, comprises a rectangular substrate 9aand a side plate part 9bthat is bent at the right angle and is elongated in the shape of thin plate toward one end from the substrate 9a. At the tip of an elongation of the side plate part 9bis formed the unlocking operation part 9cthat abuts the slant part 5dprovided at the tip of the anchoring part 5cand turns the locking member 5.
[0072] The substrate 9ais fitted with a press button 9doperated by human fingers or the like, and at a side opposite to the press button 9dis provided a stopper 9ehaving a wide plane. The stopper face 6dof the slide member 6 abuts the stopper 9e, thereby restraining the movement of the slide member 6.
[0073] The push rod 9 and the slide member 6 together are incorporated in the housing 1 and the side plate part 9bis guided to the guide wall 1gprovided in the housing 1 so that it moves within the housing 1.
[0074] The cover 10, made of a metallic plate material, has a flat upper plate part 10a, and side plate parts 10cwhich are bent at right angles from the upper plate part 10aand have plural anchoring windows 10bengaged in the engaging claws 1bof the housing 1. The cover 10 is provided on the upper surface of the housing 1 to cover opening parts of the housing 1.
[0075] A raised spring piece 10dis provided on the upper plate part 10aof the cover, and the spring piece 10dis abutted against the anchoring arm part 5bof the locking member 5 so that it energizes the anchoring part 5ctoward the engaging projection part 6aof the slide member 6. With this construction, a spring member for energizing the locking member 5 need not be provided separately, contributing to reduction in the number of parts and a smaller size of the housing 1.
[0076] Next, the operation of the card connector described above will be described with reference to FIGS. 24 to 35.
[0077] FIGS. 24 to 34 illustrate insert/eject operations of the card connector of the present invention: FIG. 24 shows an initial state in which the card is inserted in the housing; FIG. 25 shows a state in which the card is being inserted; FIG. 26 shows a state in which the card is being inserted immediately before the slide member and the locking member are engaged in each other; FIG. 27 shows a state in which the card has been inserted; FIG. 28 shows a state in which the slide member is locked when the card has been inserted; FIG. 29 shows a relationship between the locking member with the slide member locked, and a push rod; FIG. 30 shows a state in which the slide member is unlocked by pressing the push rod; FIG. 31 shows a state in which the locked slide member is unlocked and the card has been ejected to an eject position; FIG. 32 shows a state in which the card is pulled toward the operator at the card eject position; FIG. 33 shows a state in which the eject arm turns in the eject direction when the card is being ejected; FIG. 34 shows a state in which the card is ejected disengaged from a second arm part; and FIG. 35 shows a state in which a reversed card is inserted.
[0078] In the drawings, to clarify the states in which the locking member and the slide member, and the locking member and the push rod are engaged in and disengaged from each other, side views are interspersed as required.
[0079] First, the card 3 is inserted in the housing part 1aof the housing 1. At this time, the first arm part 7aof the eject arm 7 abuts the tip of the card 3 and is pressed in an card insert direction. (FIG. 24)
[0080] At this time, since a cam pin 7dof the eject arm 7 is restrained in motion by the cam part 1hof the housing 1, the first arm part 7ais not turned in the card insert direction and the slide member 6 moves in the card insert direction against an energizing force of the return spring 4. At this time, the cam pin 7dprovided on the eject arm 7 moves along the cam wall of the cam part 1hprovided on the housing 1, so that the eject arm 7 moves by a certain distance in restrained mode in the card insert direction. (FIG. 25)
[0081] When the card 3 is further pressed in the insert direction against the energizing force of the return spring 4, the slide member 6 moves in the card insert direction and the cam pin 7ddisengages from the cam wall of the cam part 1hand abuts the side wall 6hof the opening 6fof the slide member 6. At this time, the eject arm 7 turns by a certain distance in the card insert direction, whereby the second arm part 7bis engaged in a concave part 3bof the card 3. At this time, the contact parts 3aof the card 3 are brought into contact with the contact terminals 2aof the housing 1. At this time, the locking member 5 is abutted against the slide member 6 and the engaging projection part 6apresses the slant part 5dof the locking member 5 in accordance with the movement of the slide member 6, whereby the locking member 5 turns a little clockwise as shown in the side view. (FIG. 26)
[0082] Next, when the card 3 is further pressed in the insert direction, the slide member 6 moves in the card insert direction, and when the card 3 abuts the inside edge of the housing part 1aof the housing 1, the insertion is ceased, thus completing the loading of the card 3 into the housing 1. As a result, the movement of the slide member 6 and the eject arm 7 is stopped. At this time, since the anchoring arm part 5bof the locking member 5 is energized toward the engaging arm part 6bof the slide member 6 by the spring slip 10dprovided on the cover 10, the locking member 5 is turned counterclockwise as shown in the side view when the engaging projection part 6adisengages from the slant part 5b, and therefore the anchoring part 5cof the locking member 5 is correctly opposed to the engaging projection part 6aof the slide member 6. (FIG. 27)
[0083] Next, when pressure to the card 3 is ceased, the slide member 6 is returned only a little in the card eject direction by an energizing force of the return spring 4, at which time the engaging projection part 6ais engaged with the anchoring part 5cof the locking member 5, and thereby the slide member 6 is locked at that position. (FIG. 28)
[0084] Next, to eject the card 3 loaded in the housing 1, in the state in which the card 3 is loaded (FIG. 29), the press button 9dof the push rod 9 at the standby position is pressed by a finger or the like against the energizing force of the coil spring 8 until the push rod 9 is moved to the push-in position in the card insert direction. By this operation, the unlocking operation part 9cpresses the slant part 5dof the locking member 5 and thereby the anchoring arm part 5bof the locking member 5 is turned clockwise as shown in the side view and the anchoring part 5cof the locking member 5 is disengaged from the engaging projection part 6aof the slide member 6. (FIG. 30)
[0085] The slide member 6 is moved in the card eject direction by the energizing force of the return spring 4. At this time, the unlocking operation part 9cof the push rod 9 is formed on the side plate part 9bthat is bent at the right angle and is elongated in the shape of thin plate toward one end of the push rod 9, the push rod 9 can be disposed so as not to prevent the movement of the slide member 6. The small space required for the disposition contributes to reducing the width of the housing 1.
[0086] As the slide member 6 moves in the card eject direction, the eject arm 7 moves in the card eject direction with its turning restrained along with the slide member 6 up to the point at which the cam pin 7dabuts the cam wall of the cam part 1h. The back end of the stop projection part 6eof the slide member 6 abuts the end of the coil spring 8, whereby the movement of the slide member 6 is stopped and the card 3 is stopped at the eject position.
[0087] At this time, the stopper 9ehaving a wide plane is provided on the substrate 9aof the push rod 9, and at the push-in position, the stopper face 6dprovided at one end of the slide member 6 moved in the card eject direction abuts the stopper 9e, whereby the movement of the slide member 6 is stopped without fail and the card 3 is stopped at the eject position. At this time, the contact parts 3aof the card 3 are brought out of contact with the contact terminals 2aof the housing 1. (FIG. 31)
[0088] In this case, the card 3 is engaged in the second arm part 7bin the concave part 3band the cam pin 7dis restrained in its turning because it is abutted against the cam wall of the cam part 1h. This construction prevents the card 3 from popping out of the housing part 1aof the housing 1.
[0089] Next, when pressure to the push rod 9 is ceased, the push rod 9 is returned to its initial position by the energizing force of the coil spring 8. At this time, the contact between the stopper face 6dof the slide member 6 and the stopper 9eof the push rod 9 is broken off so that the slide member 6 can move in the card eject direction.
[0090] If the card 3 is pulled out by a finger or the like in this state, the slide member 6 moves toward the operator against the energizing force of the coil spring 8, the cam pin 7dmoves in the direction that disengages from the cam wall of the cam part 1h, and the eject arm 7 becomes turnable in the card eject direction. (FIG. 32)
[0091] If the card 3 is further pulled out in this state, the coil spring 8 is compressed and thereby the slide member 6 moves in the card eject direction. At this time, the eject arm 7 becomes turnable in the card 3 eject direction. (FIG. 33)
[0092] In accordance with further movement of the eject arm 7 in the card eject direction, the second arm part 7bis disengaged from the concave part 3bof the card 3 so that the card 3 is ejected from the housing part 1aof the housing 1. (FIG. 34)
[0093] If the card 3 is ejected, the slide member 6 is moved in the card insert direction by the energizing force of the coil spring 8 and returns to its initial state (FIG. 24).
[0094] According to the above-described embodiment of the present invention, the push rod 9 for unlocking the locking member 5 by a pressing operation to move the slide member 6 to the position in which the card 3 is ejected is provided with the stopper 9efor blocking the slide member 6 at the card 3 eject position from moving in the card eject direction when the push rod 9 is pressed up to the push-in position. This construction never fails to stop the movement of the slide member 6, stops the card 3 at the eject position, and prevents the card 3 from popping out of the housing part 1aof the housing 1.
[0095] Since the spring for returning the push rod 9 is also used as the spring for positioning the slide member 6 at the card 3 eject position, plural springs need not be provided separately, contributing to simplifying the construction.
[0096] FIG. 35 shows a state in which a carelessly reversed card is inserted, wherein the concave part 3bprovided on the card 3 is positioned (the left side of the drawing) opposite to the position in which the eject arm 7 is mounted. In this case, when the card 3 is being inserted, the second arm part 7bcannot be engaged in the concave part 3b, and the eject arm 7 moves in the card insert direction while being restrained in its turning. At this time, although the cam pin 1hmoves along the side wall of the flat part 1cof the housing 1, it abuts the upper wall part 1iprovided on the upper surface of the flat part 1cand is prevented from further moving in the card insert direction.
[0097] In this case, the inability to further insert the card 3 in the insert direction prevents an inadvertent breakage of the contact terminals 2adisposed on the housing 1. In this state, since the slide member 6 is not moved up to the position in which the slide member 6 is locked by the locking member 5, if pressure to the card 3 is ceased, the card 3 is returned to the initial insert position of the card by the return force of the return spring 4. Therefore, a careless insertion can be easily judged.
[0098] Although, in the above embodiment, the type of a card connector in which the contact parts 3aand the contact terminals 2aface each other has been described, it goes without saying that the embodiment is also applicable to card connectors of pin/socket type.
[0099] As has been described, a card connector of the present invention has a push rod for unlocking a locking member by a pressing operation to move a slide member to the position in which a card is ejected, wherein the push rod is provided with a stopper for blocking the slide member at the card eject position from moving in the card eject direction when the push rod is pressed up to a push-in position, wherein the stopper permits the slide member at a standby position to move in the card eject direction. With this construction, when the card is ejected, the card is stopped at a card eject position with fail along with stopping the movement of the slide member, preventing the card from popping out of the housing part of the housing.
[0100] A coil spring is provided which abuts one end of the slide member when the slide member moves in the card eject direction, and the slide member is held in the card eject position by the coil spring against an energizing force of the return spring. With this construction, when the card is ejected, it can be stopped at the eject position along with stopping the movement of the slide member.
[0101] Since the push rod is returned from the push-in position to the standby position by the coil spring, plural springs need not be provided separately, simplifying the construction of the card connector.
[0102] The card is movable in the card eject direction along with the slide member, and the coil spring is compressed when the slide member has moved to the card eject position, whereby the slide member moves in the card eject direction so that the card can be pulled out. Therefore, with a simple construction, the slide member can be positioned.
[0103] The locking member is disposed so that it can turn in a direction perpendicular to a flat surface of the card loaded in and unloaded from the housing, by a pressing operation of the push rod, and a spring piece for energizing the locking member is formed on a cover member of the housing. This construction requires no space for movement in horizontal directions, contributing to reducing the width of the housing. Also, a spring member for energizing the locking member need not be provided separately, contributing to reduction in the number of parts and a smaller size of the housing.
[0104] Since the push rod is formed by bending a thin metallic plate, it can be disposed so as not to prevent the movement of the slide member. The small space required for the disposition contributes to reducing the width of the housing.
Claims
Certificate of Correction present
The claims shown below may not include correction changes. Use the corrected PDF for authoritative text.
What is claimed is:
1. A card connector comprising:
a slide member that is slidable in directions in which a card loaded in and unloaded from a housing is inserted and ejected;
a return spring for energizing the slide member in the direction in which the card is ejected;
a locking member for holding the slide member in a position in which the card is loaded, against an energizing force of the return spring; and
a push rod, movably disposed between a standby position and a push-in position, for unlocking the locking member by a pressing operation to move the slide member to a position in which the card is ejected,
wherein the push rod is provided with a stopper for blocking the slide member at the card eject position from moving in the card eject direction when the push rod is pressed up to the push-in position, wherein the stopper permits the slide member at a stand by position to move in the card eject direction.
2. The card connector according to claim 1, wherein the locking member is disposed so that it can turn in a direction perpendicular to a flat surface of the card loaded in and unloaded from the housing by a pressing operation of the push rod, and a spring piece for energizing the locking member is formed on a cover member of the housing.
3. The card connector according to claim 1, wherein the push rod is formed by bending a thin metallic plate.
4. The card connector according to claim 1, wherein a coil spring is provided which abuts one end of the slide member when the slide member moves in the card eject direction, and the slide member is held in the card eject position by the coil spring against an energizing force of the return spring.
5. The card connector according to claim 4, wherein the push rod is returned from the push-in position to the standby position by the coil spring.
6. The card connector according to claim 4, wherein the card is movable in the card eject direction along with the slide member, and the coil spring is compressed when the slide member has moved to the card eject position, whereby the slide member moves in the card eject direction and the card can be pulled