Source: https://patents.google.com/patent/JP2008218119A/en
Timestamp: 2020-02-20 01:07:14
Document Index: 715262609

Matched Legal Cases: ['art 73', 'art 74', 'art 73', 'art 33', 'art 73', 'art 74', 'art)\n78']

JP2008218119A - Lever-type connector - Google Patents
JP2008218119A
JP2008218119A JP2007052240A JP2007052240A JP2008218119A JP 2008218119 A JP2008218119 A JP 2008218119A JP 2007052240 A JP2007052240 A JP 2007052240A JP 2007052240 A JP2007052240 A JP 2007052240A JP 2008218119 A JP2008218119 A JP 2008218119A
JP2007052240A
Toshibumi Miyamoto
俊文 宮元
2007-03-02 Application filed by Sumitomo Wiring Syst Ltd, 住友電装株式会社 filed Critical Sumitomo Wiring Syst Ltd
2007-03-02 Priority to JP2007052240A priority Critical patent/JP2008218119A/en
2008-09-18 Publication of JP2008218119A publication Critical patent/JP2008218119A/en
<P>PROBLEM TO BE SOLVED: To provide a lever-type connector capable of fitting both housings in a correct attitude. <P>SOLUTION: The female housing 10 is equipped with a cam pin 14. The male housing 30 is equipped with a lever 70. The arm part 73 of the lever 70 is equipped with a bearing part 74 and a cam groove 71 capable of being engaged with the cam pin 14.An engagement groove 78 is provided along with the cam groove 71 on the arm part 73. An engagement pin 17 is provided along with the cam pin 14 on the female housing 10. The engagement groove 78 is equipped with a gradient regulation surface 79 which can receive the engagement pin 17 halfway in the rotation of the lever 70 and regulate the gradient of the female housing 10 by sliding together with the engagement pin 17 while the lever rotates when the attitude of the female housing 10 slants relatively to the male housing 30. <P>COPYRIGHT: (C)2008,JPO&INPIT
As a lever-type connector, the one described in Patent Document 1 is known. This includes a pair of connector housings that can be fitted to each other, a lever is rotatably assembled to one connector housing, and a cam pin is provided to the other connector housing. The lever has a gate shape with the operation portion and the arm portion, and the arm portion is provided with a cam groove that can be engaged with the cam pin. Then, the cam pin is engaged with the cam groove of the arm portion in accordance with the turning operation of the lever, so that the cam action is exerted between the lever and the other connector housing, and the fitting operation of both the connector housings proceeds. It is like that. Also, the arm part is provided with a restriction groove, and one connector housing is provided with a restriction pin, and the displacement of the arm part is prevented by the restriction pin sliding in the restriction groove during the lever turning process. It is supposed to be.
Japanese Patent Laid-Open No. 10-144387
By the way, in the lever type connector as described above, since the operation force of the lever is unevenly distributed in the operation direction in the process of pushing the operation portion toward the fitting position, the surface side corresponding to the operation portion Then, the fitting operation tends to proceed fast, and there is a dislike that the fitting operation tends to proceed with a delay on the surface side corresponding to the opposite side of the operation portion. For this reason, the other connector housing is tilted from the normal fitting posture to the side where the lever operating force is strongly applied within the dimension setting clearance range interposed between the two connector housings, and the lever is brought into the fitting position. When it reaches, the inclination becomes maximum, and there is a concern that the connection operation between the terminal fittings accommodated in both connector housings may be adversely affected.
The present invention has been completed based on the above situation, and an object of the present invention is to fit both connector housings in a correct posture in a lever-type connector.
As means for achieving the above object, the invention of claim 1 is a pair of connector housings that can be fitted to each other, and a lever that is rotatably assembled to the connector housing of the two connector housings. The lever includes a plate-like arm portion, the arm portion is provided with a rotation center portion and a cam groove, and the cam groove is provided with a cam pin provided on the other connector housing. A lever-type connector in which the fitting operation of both the connector housings proceeds by engaging and rotating the lever from the initial position toward the fitting position, and the arm portion is aligned with the cam groove. The other connector housing is provided with an engagement pin alongside the cam pin, and the engagement groove is provided in the way of rotation of the lever. When the engagement pin is receivable and the fitting posture of the other connector housing is inclined relative to the one connector housing, the lever is rotated along with the lever. It has a feature in that it has a tilt regulating surface that regulates its tilt by sliding with the engaging pin.
According to a second aspect of the present invention, in the first aspect of the present invention, the engagement pin is configured such that the posture in the middle of the fitting of the other connector housing is inclined relative to the one connector housing. Only has a feature in that it slides on the tilt regulating surface.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the receiving position at which the engagement groove receives the engagement pin is the angle at which the lever is approximately half of the total rotation angle thereof. It is characterized in that it is a position corresponding to the time point when it is turned from the initial position to the fitting position side.
According to a fourth aspect of the present invention, in any one of the first to third aspects, the cam groove and the engagement groove are each configured as a bottomed groove in the arm portion and extend. It is characterized by being connected to each other along the direction.
When both the connector housings are fitted shallowly and the lever is rotated from the initial position toward the fitting position in this state, the cam pin is engaged with the cam groove, and the cam action is performed between the lever and the other connector housing. The connector housings are pulled toward each other. In the fitting process of both connector housings (while the lever is turning), even if the other connector housing is relatively inclined with respect to one connector housing due to the operating force of the lever in the clearance range of both, Since the engagement pin slides on the inclination regulating surface of the engagement groove, the further inclination is regulated, so that when the lever reaches the fitting position, both connector housings can be fitted in the correct posture.
If the other connector housing is not tilted during the fitting process of both connector housings, the engaging pin will not slide on the restricting surface of the engaging groove. The increase in lever operating force can be suppressed by the amount not added.
The receiving position where the engaging groove receives the engaging pin is a position corresponding to the time when the lever is rotated from the initial position to the mating position side by an angle that is approximately half of the entire rotation angle. Before the inclination of the housing increases, the inclination can be regulated, and the extension length of the engagement groove does not need to be increased unnecessarily.
Even if the arm portion is provided with a cam groove and an engaging groove, both the cam groove and the engaging groove are configured as bottomed grooves in the arm portion, and are connected to each other along the extending direction. Therefore, the strength of the arm portion can be ensured and the enlargement of the arm portion can be avoided.
A first embodiment of the present invention will be described with reference to FIGS. This embodiment is configured to include a pair of male and female connector housings that can be fitted to and detached from each other, and a lever 70 that can rotate between an initial position and a fitted position. In the following description, with respect to the front-rear direction, the fitting surface side of both connector housings is the front, and the vertical direction is based on FIG.
The female connector housing (the “other connector housing” in the present invention, hereinafter simply referred to as the female housing 10) is made of synthetic resin and has a block shape as a whole. A female terminal fitting (not shown) is accommodated. A flange 11 is formed on the rear end of the female housing 10 so as to project outward.
A lock receiving portion 12 protrudes from the rear end portion of the upper surface of the female housing 10. The lock receiving portion 12 has a stepped shape that gradually increases rearward, and a claw-like hooked portion 13 that protrudes rearward is provided at the rear end thereof. The lever 70 is configured to elastically lock the hooked portion 13 when reaching the fitting position.
A pair of left and right cam pins 14 project from both side surfaces of the female housing 10. The cam pin 14 has a columnar shape, and the outer peripheral edge of the protruding end thereof is chamfered over the entire circumference, and is arranged at a position that is decentered forward and upward from the center in the height direction and the center in the width direction on each side surface. The cam pin 14 can be engaged with a cam groove 71 provided in the lever 70, and can be relatively moved in the cam groove 71 as the lever 70 is rotated.
A pair of left and right ribs 15 forming ridges are formed on both side surfaces of the female housing 10 so as to extend in the front-rear direction. The rib 15 is lower than the center in the height direction on each side surface, and the front end thereof is set at a position slightly retracted from the front end of each side surface, and the rear end thereof is integrally connected to the front surface of the flange portion 11. The front end of the outer surface of the rib 15 is a guide surface 16 cut out in a tapered shape, and the guide surface 16 smoothly starts the fitting operation of both the housings 10 and 30.
A pair of left and right engagement pins 17 project from the outer surface of each rib 15 alongside the cam pins 14 slightly forward from the center in the front-rear direction. The engagement pin 17 is located below the cam pin 14 in the height direction and is located behind the cam pin 14 in the front-rear direction. Specifically, the engaging pin 17 as a whole has a substantially cylindrical shape that is smaller than the cam pin 14 and has a substantially half-moon shape with a cross-sectional shape cut out from the upper half. The upper and lower ends of the engagement pin 17 are disposed with a slight gap between the upper and lower ends of the rib 15, and the upper end of the engagement pin 17 and the upper end of the rib 15 are disposed in parallel to each other.
A male connector housing (“one connector housing” in the present invention, hereinafter simply referred to as a male housing 30) is made of synthetic resin and has a block shape, specifically a terminal block portion 31 having a square block shape. And a hood portion 32 that protrudes forward from the peripheral edge of the front surface of the terminal accommodating portion 31, specifically, a rectangular tube shape. A tab-shaped male terminal fitting (not shown) is attached to the terminal accommodating portion 31, and the distal end portion of the male terminal fitting protrudes into the hood portion 32. Then, substantially the entire female housing 10 is fitted into the hood portion 32, and the front end opening edge of the hood portion 32 is brought into contact with the front surface of the flange portion 11 in a state where both the housings 10 and 30 are properly fitted.
The hood portion 32 is formed with a cam pin introduction groove 33 into which the cam pin 14 enters when the housings 10 and 30 are fitted. The cam pin introduction groove 33 is configured with a groove width that is the same as or slightly wider than the diameter of the cam pin 14, opens at the opening edge of the hood portion 32, and from there toward the back surface side of the hood portion 32. It has a shape that extends. The hood portion 32 is formed with a rib introduction groove 34 into which the rib 15 enters when the housings 10 and 30 are fitted. The rib introduction groove 34 has a groove width that is the same as or slightly larger than the width of the rib 15, and is opened at the opening edge of the hood portion 32 while being substantially parallel to the cam pin introduction groove 33, and from there the hood portion 32. It has a shape that extends in the front-rear direction toward the back side. The rear end of the rib introduction groove 34 is located behind the rear end of the cam pin introduction groove 33. The rib 15 inserted into the rib introduction groove 34 has substantially the same height as the thickness of the hood portion 32 (depth of the rib introduction groove 34), and compensates for the protruding height of the engagement pin 17. This prevents the engagement pin 17 from being broken halfway and plays a role of guiding the fitting operation of both the housings 10 and 30.
In addition, a pair of left and right support shafts 35 having a cylindrical shape project from both side surfaces of the male housing 30. The support shaft 35 is located at a substantially boundary position between the terminal accommodating portion 31 and the hood portion 32 in the front-rear direction, and is located at the same position as the cam pin introduction groove 33 in the height direction.
The lever 70 is also made of a synthetic resin, and as shown in FIG. 5, the lever 70 includes an operation portion 72 that is elongated in the width direction and a pair of left and right arm portions 73 protruding substantially in parallel from both ends of the operation portion 72. It has a gate shape. A lock portion (not shown) is provided in the operation portion 72. When the lever 70 reaches the fitting position, the lock portion locks the lock receiving portion 12 so that the lever 70 is locked to the female housing 10 side. At the same time, the housings 10 and 30 are locked in the disengagement restricted state via the lever 70.
Each arm portion 73 has a flat plate shape as a whole, and a circular bearing portion 74 (a “rotation center portion” in the present invention) is formed in a substantially central portion so as to penetrate in the plate thickness direction. The lever 70 is mounted across the outer surface of the male housing 30, and the support shaft 35 is fitted into the bearing portion 74 while the arm portion 73 is expanded when the lever 70 is mounted, and the bearing portion 74 (support shaft 35). ) Can be rotated and displaced.
Also, a bottomed cam groove 71 is recessed in the inner surface of each arm portion 73. The entrance of the cam groove 71 is opened at the outer peripheral edge of the arm portion 73, from which the cam pin 14 can enter. Specifically, the cam groove 71 includes a straight portion 75 that extends straight from the entrance toward the bearing portion 74, and an arc portion 76 that extends from the extending end of the straight portion 75 while drawing an arc around the bearing portion 74. . Of the groove surfaces on both sides of the arc portion 76, the groove surface on the side away from the bearing portion 74 is a cam pin sliding surface 77 on which the cam pin 14 slides when the lever 70 rotates.
Here, the lever 70 has an initial position in which the entrance of the cam groove 71 is opened forward while the operating portion 72 is positioned outwardly from the upper rear end of the male housing 30 with respect to the male housing 30. 2 (the state shown in FIG. 2), while the operating portion 72 is positioned outside the upper front end of the male housing 30 so as to correspond to the lock receiving portion 12, the entrance of the cam groove 71 faces downward. The open state is held in the movement restricted state as the fitting position (the state shown in FIG. 4), and the male housing 30 is rotated clockwise from the initial position to the fitting position.
Now, a bottomed engagement groove 78 is recessed along the cam groove 71 on the inner surface of each arm portion 73. The engagement groove 78 extends along the cam groove 71 in a substantially arc shape, and its entrance is opened at the outer peripheral edge of the arm portion 73, from which the engagement pin 17 can enter. Specifically, the engagement groove 78 is located on the same side of the arm portion 73 as the cam groove 71 with the bearing portion 74 interposed therebetween, and is located farther from the bearing portion 74 than the cam groove 71, and The extension length is shorter than the extension length of the cam groove 71.
The groove width of the engagement groove 78 is slightly smaller than the groove width of the cam groove 71, and the depth of the engagement groove 78 is shallower than the depth of the cam groove 71. The engaging groove 78 and the cam groove 71 communicate with each other via a step 81, and a stepped recess that falls one step from the groove bottom of the engaging groove 78 to the groove bottom of the cam groove 71 on the inner surface of the arm portion 73. Is configured. The rear end of the engagement groove 78 is cut so as to be substantially horizontal when the lever 70 is in the fitting position. Of the groove surfaces on both sides of the engagement groove 78, the groove surface on the side away from the bearing portion 74 slides on the engagement pin 17 when the lever 70 rotates, so that the female housing 10 can move relative to the male housing 30. It is configured as an inclination regulating surface 79 that regulates the relative inclination. The inclination regulating surface 79 is in the vicinity of the outer peripheral edge of the arm portion 73 and extends substantially parallel to the outer peripheral edge, and the extending direction of the female housing 10 is inclined as the lever 70 is rotated. It is set in a direction in which the posture can be gradually corrected or a direction in which the tilt displacement of the female housing 10 beyond that is regulated. Further, the arc that borders the tilt regulating surface 79 is non-concentric with the arc that borders the cam pin sliding surface 77, and the center thereof is at a position different from the center of the bearing portion 74.
Further, on the inner surface of the arm portion 73, when the lever 70 is in the initial position, the engagement portion 17 and the release portion 82 of the engagement pin 17 are vertically cut in the direction of the entrance of the engagement groove 78 and the entrance of the cam groove 71. Is recessed. The engagement pin 17 is located in the escape portion 82 until the lever 70 is rotated from the initial position toward the fitting position, and can be prevented from interfering with the arm portion 73. In addition, the tilt restricting surface 79 is slid and the lever 70 comes into contact with the inner end of the engaging groove 78 as the lever 70 reaches the fitting position. In this case, the receiving position where the engaging groove 78 receives the engaging pin 17 is rotated by approximately half the angle of the lever 70 from the initial position toward the fitting position with respect to the entire rotation angle of the lever 70. This is a position corresponding to the point in time, and is a position where the lever 70 takes a posture of standing substantially vertically.
First, the lever 70 is assembled to the male housing 30 and held at the initial position. In the initial position, as shown in FIG. 1, the straight portion 75 including the entrance of the cam groove 71 communicates with the entrance of the cam pin introduction groove 33 in the plate thickness direction, and one end of the relief portion 82 is connected to the entrance of the rib introduction groove 34. The linear portion 75, the cam pin introduction groove 33, the bearing portion 74, and the support shaft 35 are arranged side by side on the front and rear horizontal straight lines.
Subsequently, the female housing 10 is fitted to the hood portion 32 from the direction of the arrow shown in FIG. When the female housing 10 is loosely fitted into the hood portion 32, the cam pin 14 reaches the back end of the linear portion 75 and the engagement pin 17 partially enters one end of the escape portion 82 as shown in FIG. To do. From this state, the lever 70 is rotated toward the fitting position side while grasping the operation portion 72. In the middle of the rotation, the cam pin 14 moves relatively along the cam pin sliding surface 77 in the arc portion 76 of the cam groove 71 toward the back end side, and the engagement pin 17 engages in the escape portion 82. It moves relatively toward the mating groove 78 side.
Here, as the lever 70 is turned, the fitting speed increases on the upper side of the female housing 10 located near the operation portion 72, while on the lower side of the female housing 10 located far from the operation portion 72. I don't like slowing down of mating speed. Therefore, the female housing 10 is inclined with respect to the male housing 30 within the range of clearances for setting the dimensions of both the housings 10 and 30, and more specifically, the female housing 10 has its upper side with respect to the vertical axis. It may take a forward leaning posture that protrudes forward.
Thus, when the female housing 10 starts to tilt, the engaging pin 17 reaches the receiving position for entering the entrance of the engaging groove 78. In this state, when the lever 70 further rotates, the engagement pin 17 slides on the inclination regulating surface 79 of the engagement groove 78 as shown in FIG. As a result, the fitting speed on the lower side of the female housing 10 is increased, and as a result, the tilting posture of the female housing 10 is gradually corrected. When the lever 70 reaches the fitting position, the cam pin 14 reaches the back end of the cam groove 71 and the engagement pin 17 reaches the back end of the engagement groove 78 as shown in FIG. The lock portion elastically hooks and locks the lock receiving portion 12 on the female housing 10 side, and the housings 10 and 30 are locked. At this time, the front surface of the female housing 10 faces the back surface of the hood portion 32 substantially parallel to the normal fitting posture (both housings 10 and 30 face each other's front surfaces (fitting surfaces) substantially vertically. The terminal fittings housed in both housings 10 and 30 are also connected to each other in a normal connection attitude. On the other hand, when the fitting operation proceeds without the female housing 10 being in the tilted posture, the engagement pin 17 enters the engagement groove 78 but is separated from the tilt regulating surface 79 in a non-contact state. 30 and 30 are normally fitted while maintaining the correct fitting posture.
Even when the female housing 10 is inclined relative to the male housing 30 in the process of fitting the two housings 10 and 30, the engaging pin 17 slides on the inclination regulating surface 79 of the engaging groove 78. As a result, the inclination of the female housing 10 is corrected. Therefore, when the lever 70 reaches the fitting position, the housings 10 and 30 are fitted in the correct fitting posture. Further, if the female housing 10 is not inclined during the fitting process of both the housings 10 and 30, the engaging pin 17 will not slide on the restricting surface of the engaging groove 78, so that friction caused by the sliding contact operation will occur. The force is not added, and the increase in the operating force of the lever 70 can be suppressed accordingly.
The receiving position where the engaging groove 78 receives the engaging pin 17 is a position corresponding to the time when the lever 70 is rotated from the initial position to the fitting position side by approximately half of the entire rotation angle. Therefore, the inclination of the female housing 10 can be restricted before the inclination of the female housing 10 becomes large, and the extension length of the engagement groove 78 does not need to be increased unnecessarily, and the necessary strength of the arm portion 73 can be ensured.
Furthermore, even if the cam groove 71 and the engagement groove 78 are provided in the arm portion 73, the cam groove 71 and the engagement groove 78 are both configured as bottomed grooves in the arm portion 73, and Further, since they are connected to each other along the extending direction, the necessary strength of the arm portion 73 can be ensured more reliably, and the enlargement of the arm portion 73 can be avoided.
(1) When the engaging pin slides on the inclination regulating surface of the engaging groove, the further inclination of the female housing may be restricted. The inclination may not be completely corrected.
(2) The cam groove and the engagement groove may be provided apart from each other in the arm portion.
(3) At least one of the cam groove and the engagement groove may be formed so as to penetrate in the plate thickness direction of the arm portion.
(4) The lever may have a single plate shape as a whole from one arm portion and the operation portion.
(5) The lever may be assembled to the female housing, and the cam pin and the engaging groove may be provided in the male housing.
(6) The engagement groove and the cam groove may have the same depth. Alternatively, the engagement groove may be deeper than the cam groove.
In Embodiment 1, it is a side view which shows the state before fitting both housings by making a lever into an initial position. Partially broken side view showing a state in which both housings are loosely fitted with the lever as the initial position Partially broken side view showing a state in the middle of turning the lever toward the fitting position Partially cutaway side view showing a state where both housings are properly fitted by bringing the lever to the fitting position Front view of lever
10: Female housing (the other connector housing)
14 ... cam pin 15 ... rib 17 ... engagement pin 30 ... male housing (one connector housing)
32 ... Hood part 33 ... Cam pin introduction groove 34 ... Rib introduction groove 70 ... Lever 71 ... Cam groove 72 ... Operation part 73 ... Arm part 74 ... Bearing part (rotation center part)
78 ... Engaging groove 79 ... Tilt regulating surface
A pair of connector housings that can be fitted to each other, and a lever that is rotatably assembled to one of the two connector housings,
The lever includes a plate-like arm portion, the arm portion is provided with a rotation center portion and a cam groove, and a cam pin provided in the other connector housing is engaged with the cam groove, A lever-type connector in which the fitting operation of the two connector housings proceeds by rotating the lever from the initial position toward the fitting position,
The arm portion is provided with an engaging groove along with the cam groove, and the other connector housing is provided with an engaging pin along with the cam pin,
The engaging groove is configured to receive the engaging pin in the middle of the rotation of the lever, and a posture in the middle of fitting of the other connector housing is inclined relative to the one connector housing. In this case, the lever-type connector has an inclination restricting surface that restricts the inclination of the lever by sliding with the engaging pin as the lever rotates.
The engagement pin slides on the tilt regulating surface only when the fitting posture of the other connector housing is inclined relative to the one connector housing. Item 10. The lever type connector according to Item 1.
The receiving position where the engaging groove receives the engaging pin is a position corresponding to the time when the lever is rotated from the initial position to the fitting position side by an angle that is approximately half of the total rotation angle. The lever-type connector according to claim 1 or 2, wherein the connector is a lever-type connector.
The cam groove and the engagement groove are both configured as bottomed grooves in the arm portion, and are continuous with each other along the extending direction. The lever type connector described in 1.
JP2007052240A 2007-03-02 2007-03-02 Lever-type connector Pending JP2008218119A (en)
JP2007052240A JP2008218119A (en) 2007-03-02 2007-03-02 Lever-type connector
DE200810010035 DE102008010035B4 (en) 2007-03-02 2008-02-20 Connector with lever and method for connecting it
US12/038,022 US7670157B2 (en) 2007-03-02 2008-02-27 Lever connector
JP2008218119A true JP2008218119A (en) 2008-09-18
ID=39688424
JP2007052240A Pending JP2008218119A (en) 2007-03-02 2007-03-02 Lever-type connector
US (1) US7670157B2 (en)
JP (1) JP2008218119A (en)
DE (1) DE102008010035B4 (en)
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2007-03-02 JP JP2007052240A patent/JP2008218119A/en active Pending
2008-02-20 DE DE200810010035 patent/DE102008010035B4/en not_active Expired - Fee Related
2008-02-27 US US12/038,022 patent/US7670157B2/en not_active Expired - Fee Related
DE102008010035A1 (en) 2008-09-18
DE102008010035B4 (en) 2012-08-23
US7670157B2 (en) 2010-03-02
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