JP3363838B2 - Connector with ejector - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector with an ejector. 2. Description of the Related Art FIGS. 9 and 10 are perspective views of a conventional connector with an ejector. FIG. 9 shows a state after fitting with a mating connector, and FIG. 10 shows fitting with a mating connector. It is a figure showing the state before. However, the mating connector is not shown in FIG. The connector with an ejector includes an insulator 210, a rotating lever 230, and an eject bar 250. A pin contact 220 is fixed to the insulator 210. Also, the insulator 210
A guide 212 for guiding a card (a mating connector) 270 is integrally formed with the card. The guide 212 has a flange portion 213 for fixing it to a printed circuit board (not shown) with a screw, and a fixing protrusion 214 for slidably holding the eject bar 250.
Are integrally formed. [0006] The rotating lever 230 is connected to the insulator 210.
Is rotatably supported by a shaft portion 216 formed at the bottom.
One end of the rotation lever 230 has a claw 232 that contacts the tip of the card 270 inserted into the insulator 210.
Are formed. The other end of the rotating lever 230 is almost U
The engaging portion 240 is formed in a notch 251a, 251b at one end of the eject bar 250.
(See FIGS. 11 to 14). The eject bar 250 has a rotating lever 230.
To rotate the card 270 out of the insulator 210. At the other end of the eject bar 250, a button 255 for pushing the eject bar 250 in the insertion direction of the card 270 is provided. The eject bar 250 has a slide hole 252 extending in the insertion direction of the card 270, and the fixed protrusion 214 relatively slides in the slide hole 252. When the card 270 is inserted into the insulator 210 to be in the fitted state, the claw 232 of the rotating lever 230 is pushed in according to the movement of the card 270, and the rotating lever 230 rotates clockwise about the shaft 216. I do. Therefore, the eject bar 250 moves in the escape direction of the card 270 (see FIG. 9). Conversely, when the eject bar 250 is pushed in the insertion direction of the card 270 by the button 255,
The rotation lever 230 according to the movement of the eject bar 250
Rotates counterclockwise about the shaft 216. Therefore, the card 270 inserted into the insulator 210 by the claw 232 of the rotating lever 230 is
0 is pushed in the opposite direction to the insertion direction of the insulator 11.
Escape from 0 (see FIG. 10). FIG. 11A is a view for explaining the relationship between the rotary lever and the eject bar, and FIG. 11B is a view for explaining the relation between FIG. 11A and FIG.
FIG. The engaging portion 240 at the other end of the rotary lever 230 is formed by an upper surface 241 facing the shaft 216 in the axial direction, a lower surface 242, and a side surface 243 connecting the upper surface 241 and the lower surface 242. Have been. A notch 2 is provided at one end of the eject bar 250.
51a and 251b are formed. The rotary lever 230 and the eject bar 250
Are engaged, the front end 244 of the lower surface 242 of the engagement portion 240 projects beyond the notch 251 b of the eject bar 250 toward the guide 212 by the dimension B. At this time,
The distance from the end surface 245 to the eject bar 250 is shown as a dimension B in FIGS. FIG. 12A is a diagram for explaining the relationship between the rotary lever and the eject bar, and FIG.
FIG. FIG. 12 shows that the eject bar 250 has the card 2
70 shows a state in which the rotary lever 230 has been pushed in the insertion direction and the rotary lever 230 has been rotated to a position substantially orthogonal to the eject bar 250. At this time, since the side surface portion 243 of the engaging portion 240 of the rotating lever 230 that rotates counterclockwise about the shaft portion 216 is farthest from the eject bar 250 that moves in parallel along the guide 212, the dimension B is minimized. . FIG. 13A is a diagram for explaining the relationship between the rotary lever and the eject bar, and FIG. 13B is a diagram for explaining the relationship between FIG. 13A and FIG.
FIG. FIG. 13 shows a state in which the eject bar 250 is further pushed in from the state shown in FIG. Since the rotating lever 230 rotates further counterclockwise from the state shown in FIG. 12, the side surface portion 243 of the engaging portion 240 of the rotating lever 230 approaches the eject bar 250, and the dimension B increases. [0020] By the way, with the spread of notebook personal computers, there is an increasing demand for miniaturization of connectors for PC cards. The PC card is a business card size information medium that is used by being inserted into a card slot of a notebook personal computer or the like. In order to reduce the external dimensions of the connector, it is necessary to reduce the dimension B by bringing the eject bar 250 close to the guide 212. FIG. 14 is an enlarged view showing a state in which the rotary lever and the eject bar are detached. FIG. 14A shows a state in which the rotary lever is at a position substantially orthogonal to the eject bar 250. FIG. 6B is a diagram illustrating a state in which the rotation lever is further rotated counterclockwise from a position substantially orthogonal to the eject bar 250. When the dimension B is reduced in order to reduce the size of the connector as described above, when the eject bar 250 is pushed in the insertion direction of the card 270 to cause the card 270 to escape from the insulator 210 , the eject bar 250 rotates. Inside of the lever 230 (card 2
70 is shifted in the direction perpendicular to the insertion / removal direction of 70 and approaching the guide 212), and the notch 251b is
42 (see FIG. 14A). When the eject bar 250 is further pushed in the insertion direction of the card 270 from this state, the eject bar 250 shifts downward with respect to the rotating lever 230 and comes off from the rotating lever 230 (see FIG. 14B). When the dimension B is reduced as described above, there is a problem that the ejection operation of the card 270 becomes unstable . The present invention has been made in view of such circumstances, and an object of the present invention is to provide a connector with an ejector that can be downsized and that can reliably perform an ejecting operation. According to a first aspect of the present invention, there is provided an insulator having a guide for guiding a mating connector, and an insulator having a guide inserted into the guide. Directional lever, and an eject bar that is mounted on the guide movably along the insertion / removal direction of the mating connector and applies a rotational force to the rotary lever. In the connector with the ejector, which is in contact with the tip of the mating connector inserted into the guide and the other end of the rotating lever is engaged with the engaging portion at one end of the eject bar, A stopper for preventing the engaging portion of the eject bar from moving in a direction perpendicular to the insertion / removal direction at the time of escape is provided at the other end of the rotary lever. And the other end of the rotary lever is substantially
The engagement portion is formed by being bent into a U-shape.
The engaging portion of the bar is located between the upper surface and the rotation axis of the rotation lever.
A lower surface portion facing the upper surface portion in a direction,
A side portion connecting the lower surface portion and the stopper portion,
The protrusion and the notch that are substantially opposite to each other in the rotation axis direction
Ejectors with connector, characterized in that it consists in. [0027] The eject bar can be arranged close to the guide. When the eject bar is urged in the insertion direction of the mating connector, the stopper prevents the engaging portion of the eject bar from moving in a direction orthogonal to the insertion / removal direction of the mating connector. One end of the ejector engages with a notch and a projection formed substantially facing the rotation axis direction of the rotation lever. Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are perspective views of a connector with an ejector according to an embodiment of the present invention. FIG. 1 shows a state after fitting with a mating connector, and FIG. It is a figure showing the state before performing. In FIG. 1, the mating connector is not shown. The connector with an ejector includes an insulator 10, a rotary lever 30, and an eject bar 50.
And The insulator 10 is provided with a plurality of pin contacts 20 that come into contact with electrodes (not shown) of a PC card (mating connector) 70. The rotary lever 30 is rotatably provided on the insulator 10. The eject bar 50 is movable along the insertion / removal direction of the PC card 70, and is engaged with the rotation lever 30. When the PC card 70 is inserted into the guide 12 of the insulator 10, the rotary lever 30 rotates clockwise and pushes the eject bar 50 in the direction in which the PC card 70 escapes (see FIG. 1). When ejecting the PC card 70 from the insulator 10, the eject bar 50 is
In the direction of insertion. The rotation lever 30 rotates counterclockwise and pushes the PC card 70 out of the insulator 10 (see FIG. 2). FIG. 3 is an exploded perspective view of the connector with an ejector. The insulator 10 is formed of resin, and the insulator 10 is integrally formed with parallel guides 12 for guiding the PC card 70. A flange 13 for fixing the insulator 10 to a printed circuit board (not shown) with screws is provided on an outer surface of the guide 12, and a projection 14 and a fixing projection 15 are integrally formed on both sides of the flange 13. Is formed. Both the projection 14 and the fixed projection 15 have a T-shaped cross section. The insulator 10 has a plurality of holes 11 into which the pin contacts 20 are press-fitted. The pin contact 20 is made of metal, and a signal is transmitted between the PC card 70 and the printed board via the pin contact 20. The pin contact 20 includes a contact portion 20a, a press-fit portion 20b, and a connection portion 20c. The pin-shaped contact portion 20a is a flat press-fit portion 2
Ob is connected to the crank-shaped connecting portion 20c. The press-fit portion 20b is press-fitted into the hole 11, and the connection portion 20c is soldered to the printed board. Further, the insulator 10 has a shaft portion (rotation shaft) 16 for rotatably supporting the rotation lever 30. The rotary lever 30 is formed by bending a metal plate, and a hole 31 is formed at an intermediate portion thereof so as to allow the shaft 16 of the insulator 10 to pass therethrough. One end of the rotary lever 30 is bent substantially at a right angle to form a claw 32. The other end of the rotary lever 30 is bent into a substantially U-shape to form an engaging portion 40. The engaging portion includes an upper surface portion 41, a lower surface portion 42, and a side surface portion 43 connecting the upper surface portion 41 and the lower surface portion 42. A projection (stopper portion) 44 is formed integrally with a tip portion of the lower surface portion 42. At one end in the longitudinal direction of the eject bar 50, cutout portions (engagement portions of the eject bar 50) 51a and 51b which are engaged with the engaging portion 40 of the rotary lever 30 are formed. The upper cutout 51a is engaged with the upper surface 41, and the lower cutout 51b is engaged with the lower surface 42. Note that the lower cut
The notch 51b can engage with the projection 44. A long groove 52 extending in the longitudinal direction of the eject bar 50 is formed at an intermediate portion of the eject bar 50. The long groove 52 is engaged with the projection 14 so that the eject bar 50 can move in the insertion / removal direction of the PC card 70. At the other end of the eject bar 50, a press-fit portion 53 is provided.
A button 55 for pressing the eject bar 50 is press-fitted into the press-fitting portion 53. The button 55 has a groove (not shown). This groove engages with the fixing protrusion 15 so that the button 55 can move in the insertion / removal direction of the PC card 70. FIG. 4 shows the operation of the rotary lever.
FIG. 4A shows a state before the PC card escapes, and FIG.
FIG. 4 (c) is a diagram showing a state during the escape of the card, and FIG. 4 (c) after the escape of the PC card. The PC card is not shown. The PC card 70 is inserted into the guide 12,
When a force is applied to the claw 32 at one end of the rotating lever 30 by its tip, the rotating lever 30 rotates clockwise around the shaft 16. Therefore, the clockwise rotating force of the rotating lever 30 acts on the eject bar 50 via the engaging portion 40 at the other end of the rotating lever 30, and the eject bar 50
Is pushed out along the guide 12 in the direction opposite to the insertion direction of the PC card 70 (see FIG. 4A). When the eject bar 50 is pushed in while the PC card 70 is in the fitted state, the rotating lever 30 rotates counterclockwise about the shaft 16 as a fulcrum. Therefore, the counterclockwise rotation force of the rotation lever 30 is
Acting on the C card 70, the PC card 70 is pushed out in the escape direction, and the rotation lever 30 and the eject bar 50 are substantially orthogonal to each other (see FIG. 4B). When the button 55 is pressed until it hits the flange 13, the PC card 70 and the pin contact 20
Completely disengage (see FIG. 4 (c)). FIG. 5A shows the relationship between the rotation lever and the eject bar when a PC card is inserted.
FIG. 5B is a partially enlarged view of FIG. The notch portions 51a and 51b at one end in the longitudinal direction of the eject bar 50 are engaged with the engaging portions 40 of the rotary lever 30. The upper cutout 51a is engaged with the upper surface 41, and the lower cutout 51b is engaged with the lower surface 42. The end surface 45 of the lower surface projects beyond the eject bar 50 by the dimension A in the direction of the guide 12. At this time, the dimension A is larger than the width of the projection 44, and the projection 44 is not engaged with the notch 51b. The distance from the end face 45 to the eject bar 50 is shown as a dimension A in FIGS. FIG. 6A shows the relationship between the rotating lever and the eject bar during the escape of the PC card.
FIG. 6B is a partially enlarged view of FIG. The rotation lever 30 and the eject bar 50 are substantially orthogonal. Since the rotation lever 30 makes a rotary motion and the eject bar 50 makes a linear motion, the rotation lever 3
The side surface portion 43 of the zero engaging portion 40 is farthest from the eject bar 50, and the dimension A is minimized. At this time, the projection 44 comes into contact with the notch 51b of the eject bar 50. Therefore, the relative movement of the eject bar 50 to the inside (the direction orthogonal to the insertion / removal direction of the PC card 70) is prevented, and the eject bar 50 does not come off the rotary lever 30. FIG. 7A is a diagram showing the relationship between the rotating lever and the eject bar after the PC card has escaped.
FIG. 7B is a partially enlarged view of FIG. The notch 51b of the eject bar 50 is kept in contact with the lower surface 42 of the engaging portion 40 of the rotary lever 30, and the eject bar 50 is displaced downward with respect to the rotary lever 30 and comes off the rotary lever 30. Absent. Therefore, the eject bar 50 can surely rotate the rotation lever 30 in the counterclockwise direction. According to this embodiment, since the projection 44 is formed integrally with the tip of the rotary lever 30, even when the eject bar 50 is moved inward (toward the guide 12) to reduce the size of the connector, the PC card can be used. When ejecting the PC card 70, the eject bar 50 and the rotating lever 30 do not come off from each other by the projection 44, and the ejecting operation of the PC card 70 can be reliably performed. FIG. 8 is a perspective view for explaining a modification of the rotary lever. The rotary lever 130 differs from the rotary lever of the above-described embodiment in that a stopper portion is formed by a projection 144 and a notch 146 substantially facing each other in the axial direction of the shaft portion 16. The projection 144 and the notch 146 are formed by cutting the engaging portion 40 by a predetermined size. According to this modification, the eject bar 50
When the PC card 70 is pushed in the insertion direction of the PC card 70, the twist generated in the eject bar 50 can be reliably prevented by the protrusion 144 and the notch 146, and the operability of the eject bar 50 during the eject operation of the PC card 70 is improved. I do. In the above embodiment, the insulator 1
Although the 0 and the guide 12 are integrally formed of resin, the insulator 10 and the guide 12 may be formed separately without being integrally formed. The rotary lever 30 is connected to the insulator 1
Although it is provided at 0, a pair of guides 12 may be connected by a bridge, and the rotation lever 30 may be provided at this bridge. As described above, according to the connector with the ejector according to the first aspect of the present invention, the size of the connector can be reduced. In addition, when the mating connector is disengaged, the rotation lever is not displaced outward from the eject bar by the stopper portion, so that a reliable eject operation can be obtained. According to the connector with the ejector according to the second aspect of the present invention, the torsion of the ejector caused when the ejector is urged in the insertion direction of the mating connector is prevented by the projection and the notch, and the ejector is operated during the ejecting operation. The operability of the bar is improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a connector with an ejector according to an embodiment of the present invention, showing a state after being fitted with a mating connector. FIG. 2 is a perspective view of the connector with an ejector according to the embodiment of the present invention, showing a state before being fitted to a mating connector. FIG. 3 is an exploded perspective view of the connector with an ejector. FIG. 4 is a view showing the operation of a rotary lever, and FIG.
FIG. 4A shows the operation of the rotating lever when the card is inserted, FIG. 4B shows the operation of the rotating lever during the removal of the card, and FIG. 4C shows the operation of the rotating lever after the card is removed. FIG. 5A is a diagram showing a relationship between a rotation lever and an eject bar when a card is inserted, and FIG. 5B is a diagram showing FIG.
It is the elements on larger scale of (a). FIG. 6A is a diagram showing a relationship between a rotating lever and an eject bar during the removal of a card, and FIG. 6B is a partially enlarged view of FIG. 6A. 7A is a diagram showing a relationship between a rotating lever and an eject bar after the card has escaped, and FIG. 7B is a diagram showing FIG.
It is the elements on larger scale of (a). FIG. 8 is a perspective view illustrating a modification of the rotary lever. FIG. 9 is a perspective view of a conventional connector with an ejector, showing a state after fitting with a mating connector. FIG. 10 is a perspective view of a conventional connector with an ejector, showing a state before being fitted to a mating connector. 11A is a diagram for explaining a relationship between a rotary lever and an eject bar, and FIG. 11B is a partially enlarged view of FIG. 11A. 12 (a) is a view for explaining the relationship between a rotary lever and an eject bar, and FIG. 12 (b) is a partially enlarged view of FIG. 12 (a). 13A is a diagram for explaining a relationship between a rotary lever and an eject bar, and FIG. 13B is a partially enlarged view of FIG. 13A. 14 is an enlarged view showing a state in which the rotary lever and the eject bar are detached. FIG. 14A shows a state in which the rotary lever is at a position substantially orthogonal to the eject bar 250. FIG. 7B is a diagram illustrating a state in which the rotation lever is further rotated counterclockwise from a position substantially orthogonal to the eject bar 250. [Description of Signs] 10 Insulator 12 Guide 30 Rotary lever 40 Engagement part 44, 144 Projection 50 Eject bar 40 Rotary lever 70 PC card (mating connector) 146 Notch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 12/18 H01R 13/633

Claims (1)

(57) [Claim 1] An insulator having a guide for guiding a mating connector, a rotary lever for transmitting a force in an escape direction to the mating connector inserted into the guide, An eject bar that is movably mounted along the insertion / removal direction of the mating connector and that applies a rotational force to the rotating lever, wherein one end of the rotating lever is inserted into the guide. In the connector with the ejector, which is in contact with the tip and the other end of the rotary lever is engaged with the engaging portion of the one end of the eject bar, the engaging portion of the eject bar is provided when the mating connector escapes. the stopper portion for preventing the movement in the direction perpendicular to the inserting and removing direction is provided on the other end of the rotary lever, substantially U-shaped other end of the rotary lever Folded into shape
An engaging portion is formed, and the engaging portion of the rotating lever includes an upper surface portion and the rotating lever.
A lower surface portion facing the upper surface portion in the rotation axis direction of the
A surface portion and a side surface portion connecting the lower surface portion, wherein the stopper portion is substantially in the rotation axis direction of the rotation lever.
A connector with an ejector , comprising a projection and a notch facing each other .