KR101687451B1 - Electric connector for flat conductor - Google Patents

Abstract

assignment
And the movable member does not come out of the housing.
Solution
When the movable member is in the open position and is rotated in the normal direction after being rotated in the negative direction rather than in the normal direction rotating in the normal rotation direction, the first cam portion 55 is lifted by the forward rotation of the movable member, The pressed portion 34A of the movable arm portion 31 of the second terminal 30 is brought into contact with the second cam portion and the second cam portion of the second terminal 30, And the second cam portion 56 has an engaging pawl portion 34A-1 that prevents the point of contact on the pressed portion 34A from being moved from the longitudinal direction to the other end side, And the movable member has an engagement point 56E between the engagement pressure receiving portion 34A-1 and the engagement pressure receiving portion 56D at the supporting point 56A-1 and the engagement pressure receiving portion 56D engaging with the pressing portion 34A- So that the first cam portion 55 is lifted up The cam axis can return to its normal position off the point.

Description

ELECTRIC CONNECTOR FOR FLAT CONDUCTOR -

The present invention relates to an electrical connector for a flat conductor.

As this type of electrical connector, for example, a connector disclosed in Patent Document 1 is known. The terminals are made keeping the flat surface of the metal plate, and a plurality of the terminals are arranged in the thickness direction of the metal plate by the housing. The two terminals are co-located, and both of them have two kinds of arm portions, that is, the upper movable arm portion and the lower fixed arm portion which are arranged in the same direction, and the two kinds of arm portions are connected to the connection portion As shown in FIG. The fixed arm portion is fixed and held by the housing. On the other hand, the movable arm portion has a pressing portion at one end side in the longitudinal direction thereof and a pressed portion at the other end side, and a cam portion guided by the rotation guide portion and pivoting about the cam axis, Under a cam displacement amount by a positive directional rotation toward the support portion, the pressurizing portion is displaced downward with the connecting portion as a support point. When the movable member is in the open position, the flat conductor inserted between the fixed arm portion and the movable arm portion from the one end side is displaced downward by the rotation of the movable member to the closed position, And is electrically connected to each other.

The movable member is rotatable between an open position and a closed position, enabling the insertion of the flat conductive member at the open position, and pressing the inserted flat conductive member at the closed position to the pressing member. The camshaft of the cam portion can move, but under the normal operation in which the movable member is rotated in one direction from the open position to the closed position, the pivot axis of the movable member is shifted from the camshaft It is consistent. The direction of rotation from the open position toward the closed position is the positive direction and the opposite direction is the negative direction.

The movable member is required to be capable of pivoting in the forward direction with respect to the pivotal movement from the open position to the closed position, and it is sufficient that the housing also defines a space permitting pivotal movement of the movable member within the range. However, in reality, as in most of this type of connector, the space is formed such that, for reasons of precision and assembly of each member, the movable member can be pivoted slightly from the open position , And the regulating position of the sub-directional rotation is determined by the housing. Therefore, the movable member is prevented from rotating in the negative direction beyond the regulating position.

Japanese Patent Application Laid-Open No. 2008-192408

As described above, in Patent Document 1, when the movable member is rotated in the forward direction from the open position to the closed position, the movable member can be rotated also in the downward direction from the open position. Therefore, It is often the case that the turning is performed in the negative direction immediately before the normal operation and then the turning is performed in the forward direction by changing the direction.

Such unnecessary turning operation in the negative direction deviates from the normal position of the camshaft axis by the rotation center of the movable member. The movable member is subjected to the torque in the negative direction with the cam axis which is deviated from the normal position as the center of rotation due to the fact that the position of the cam shaft of the movable member is movable and not in the fixed position, And the cam part is placed on the rotation guide part of the terminal and the cam part is displaced from the rotation guide part by the operation of the movable member toward the negative direction and the function as the movable member can not be performed any more.

In view of such circumstances, it is an object of the present invention to provide a flat conductive member in which a cam shaft of a cam portion is returned to a normal position and the movable member does not deviate from a normal position even if the movable member is rotated in the negative direction before being rotated in the normal forward direction. And an electrical connector for electrical connection.

The electrical connector for a flat conductor according to the present invention is characterized in that a fixed arm portion and a movable arm portion on an arm are formed in parallel to each other so as to extend in the same direction to each other in a terminal made by holding a flat surface of a metal plate, And the movable arm portion is constituted by a pressing portion at one end in the longitudinal direction and a pressed portion at the other end side in the longitudinal direction, The cam portion of the movable member rotates in the forward direction from the open position where the member can insert the flat conductive body to the closing position and pushes the pressed portion of the movable arm portion by the cam displacement amount of the predetermined amount, And the movable arm portion is displaced by the displacement of the press- Displacement angle (角) portion pressed and displaced resang, it applies a pressing force to the flat conductive member in the pressing portion.

In the electrical connector for a flat conductor, in the present invention, a plurality of the terminals are arranged in a direction perpendicular to the flat surface of the terminals, the plurality of terminals have at least first and second different terminals, The first terminal has a raised portion which is formed in a step shape from the other end side position of the upper side edge portion of the fixed arm portion in a range opposed to the pressed portion of the movable arm portion and an ascending portion is formed on the top portion, A rotation guide portion for guiding the first cam portion of the movable member about the cam axis of the normal position by the upper edge portion and the granular portion while regulating the movement of the movable member toward the other end direction from the granular portion to the cam portion, The second terminal is a portion in which the upper edge portion of the fixed arm portion extends in the longitudinal direction in a range corresponding to the rotation guide portion of the first terminal Is formed as a unit (直 狀 部),

The cam portion has a first cam portion corresponding to the first terminal and a second cam portion corresponding to the second terminal on one cam axis line, and when the movable member is subjected to the turning operation, The camshaft is rotated about the camshaft axis,

The cam portion is provided with a cam follower portion in which the first cam portion and the second cam portion respectively abut against or form a gap with respect to the rotation guide portion or the upright portion of the fixed arm portion when the movable member is in the open position, When the movable member comes to the closed position, has a larger radius of curvature that brings contact pressure to the pressed portion,

When the movable member is rotated in the forward direction after being rotated in the negative direction at the open position, the first cam portion sits on the top of the mountain by the forward rotation of the movable member, In which the pressed portion of the movable arm portion of the second terminal receives the contact pressure from the second cam portion is prevented from moving from the longitudinal direction to the other end side, And the second cam portion has an engaging pressure receiving portion for engaging with the engaging receiving portion, and the movable member rotates in the forward direction with the engaging point between the engaging pressed portion and the engaging pressure receiving portion as a fulcrum, The cam axis can be returned to the normal position by moving away from the position where the first cam portion is raised.

In the electrical connector for a flat conductor according to the present invention, when the movable member is rotated in the one end direction immediately before receiving the forward rotation, which is a normal rotation operation after the flat conductive member is inserted when the movable member is in the open position, , It comes into contact with the abutment point of the housing or the like for regulation of the negative directional rotation and is restricted from further turning in the negative direction. At this time, by the operating force received toward the negative direction, the movable member is rotated with the contact point serving as a fulcrum to move the cam portion to the other end side by the reaction force from the housing at the contact point, When the axis of the first cam part is displaced from the normal position and the first cam part sits on the top of the first terminal of the first terminal and then the movable member is rotated in the normal forward direction toward the closing position, And is moved to the departure / return position as the center of rotation. However, according to the present invention, in such a situation, the second cam portion integrally formed with the first cam portion on the movable member is engaged with the engaging pressure receiving portion of the second terminal, The cam member moves in the direction in which the camshaft is returned to the one end side, so that the first cam member moves away from the position where the first cam member is lifted and returns to the normal position. As a result, since the movement of the first cam portion from the granular portion to the other end of the first terminal at the normal position is restricted, the entire cam portion can not move to the other end, so that it does not deviate. In this way, in the state in which the cam portion is returned to the normal position, the forward rotation of the movable member is continued to the closed position.

In the present invention, in the second terminal, the engaging pressed portion formed in the pressed portion is moved in the longitudinal direction from the point where the engaging pressure receiving portion of the second cam portion is raised with respect to the first cam portion during the forward rotation of the movable member It is preferable that it is located on one side. With such a positional relationship, the first cam portion departs from the point at which the first cam portion is raised at a point in time when the movable member is rotated in the forward direction.

As described above, according to the present invention, even if the movable member is rotated in the negative direction before the regular forward rotation, and the first cam part goes over the mountain top beyond the granular part of the first terminal, the forward rotation of the movable member, As a result of performing the engagement with the engagement point at which the engagement pressure receiving portion of the second terminal and the engagement pressure portion of the second cam portion are engaged with each other as a fulcrum, the movement from the fly- The regulated normal position is returned to the effect that the entire cam portion does not come off, and the movable member reaches the closed position reliably.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of an electrical connector for a flat conductor according to an embodiment of the present invention, together with a balanced conductor before connection. Fig. 1 (A) is a perspective view and Fig. 1 (B) is a plan view.
Fig. 2 is a cross-sectional view of the connector of Fig. 1 with the movable member in the open position. Fig. 2 (A) shows a first terminal, Fig. 2 (B) shows a second terminal, And Fig.
Fig. 3 is a cross-sectional view of the connector shown in Fig. 1 with the movable member in the closed position, Fig. 3 (A) is a first terminal, Fig. 3 (B) is a second terminal, And Fig.
4 is a cross-sectional view showing a state in which the movable member is rotated in the one end direction before the movable member is rotated in the forward (clockwise) direction from the open position in Fig. 2, and Fig. 4 Fig. 4 (B) is a view of the second terminal, and Fig. 4 (C) is a view of the position of the metal fitting.
Fig. 5 is a cross-sectional view showing a state in which the movable member is in a detached rotational position when the first cam is rotated in the forward direction from the state of Fig. 4 and the first cam is seated on the top of the first terminal; 5A is a first terminal, FIG. 5B is a second terminal, and FIG. 5C is a view of a position of a metal fitting.
6 is a cross-sectional view of the first terminal, showing the state when the movable member is rotated further in the forward direction from the position of Fig. 5 and deviates from the housing.
Fig. 7 is an enlarged cross-sectional view of the second cam portion and the periphery thereof in Fig. 4 (B). Fig.
Figs. 8A to 8D are cross-sectional views at the second terminal position showing various modifications of the present invention. Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Fig. 1 shows a front end of the connector of the present embodiment and a front end portion which becomes a connecting portion before connection of the flat conductive body connected to the outer conductor. Fig. 1 (A) is a perspective view and Fig. 1 (B) is a plan view.

1 (A) and 1 (B), reference numeral 1 denotes an electrical connector for a balanced conductor according to the present embodiment, and reference symbol F denotes a balanced conductor to which the connector 1 is connected.

The flat conductive member F is connected to the connector 1 at the front end portion thereof (an upper right side edge portion of the portion near the connector 1 in FIG. 1 (A) and an upper edge portion in FIG. 1 (B) (Left downward in FIG. 1A and downward in FIG. 1B). In the drawing, a portion up to the rearward position of the connecting portion is shown, and a rear portion The city is omitted. In the present embodiment, the planar conductor F is removed from the coating on the upper surface of the front end portion to expose the connection circuit portion F1 to form a connection portion. The connecting portion is provided with a reinforcing sheet F2 on the bottom surface in order to improve the strength at the time of connection with the connector.

The connecting portions of the flat conductive members F are formed with engaging portions F3 at both side edges in the width direction by notches. The engaged portion F3 of the notched portion enters and engages with a claw-shaped engaging portion formed in a metal bracket described later, contributing to preventing the balanced conductor F from slipping off.

The connecting circuit portion F1 in the connecting portion of the flat conductive body F is formed with a pad F4 formed in each of a plurality of wiring portions arranged in the width direction and the pad F4 is alternately And the heat transfer pad F4A and the heat transfer pad F4B are arranged in a zigzag manner. The heat transfer pad F4A is connected to the first terminal 20 of the two types of terminals (the first terminal 20 and the second terminal 30) of the connector 1 and the rear heating pad F4B The second terminal 30 is connected. Hereinafter, " first " is attached to one portion of the first terminal or another member positioned corresponding to the first terminal. Likewise, "second" is attached to the second terminal.

On the other hand, the connector 1 is composed of a connector body 2 and a movable member 3 supported by the connector body 2 (see also Fig. 2).

The connector main body 2 includes a housing 10 made of an electrically insulating material and a first terminal 20 and a second terminal 30 which are made by holding the flat surface of the metal plate and are held by the housing 10, Like terminals, and a metal plate 40 made of a metal plate similar to the terminals thereof and held by the housing 10. The first terminal 20, the second terminal 30, and the metal fitting 40 will be described later in detail.

The housing 10 is formed by molding an electrically insulating material and has an approximately rectangular parallelepipedal shape that is long in the width direction of the flat conductive body F and relatively small in height dimension. As shown in Fig. 2, The first terminal groove 11 and the second terminal groove 12 in the form of two slits passing therethrough are alternately formed in the width direction. The first terminal 20 and the second terminal 30 are correspondingly inserted and held in the two first terminal grooves 11 and the second terminal grooves 12 respectively, Forming an array range. A metal fitting groove 13 for holding the fitting 40 is formed in the outer side of the arrangement range of the terminals so as to penetrate in the forward and backward directions in the same slit shape as the first and second terminal recesses 11 and 12.

The first terminal 20, the second terminal 30, and the metal fitting 40 are formed by holding the flat plate surface of the metal plate, as described above, The two terminal grooves 12 and the metal fitting grooves 13 are formed such that the groove width in the terminal arrangement direction is substantially equal to the plate thickness of each of the first terminal 20, the second terminal 30 and the metal fitting 40 2 (A), 2 (B) and 2 (C), the direction perpendicular to the paper is defined as the groove width.

The first terminal groove 11, the second terminal groove 12 and the metal fitting groove 13 are formed on the upper surface of the housing 10 as shown in Figs. 2A, 2B and 2C, (Rightward and leftward in the figure) between the bottom wall 14 and the bottom wall 15. [ The first terminal groove 11, the second terminal groove 12 and the metal fitting groove 13 are communicated with a communication groove extending in a direction perpendicular to the paper surface of Fig. 2 at their center positions in the height direction And the receiving opening 16 in which the communication groove is opened rearward is formed so that the connecting portion of the above-mentioned balanced conductor F can be introduced into the receiving opening 16. [ In this way, the rear terminal portions of the first terminal groove 11, the second terminal groove 12, and the metal fitting groove 13 are separated vertically by the receiving opening portion 16, The first terminal upper groove 11A and the first terminal lower groove 11B and the second terminal upper groove 12A and the second terminal lower groove 12B are formed on the upper surface of the bottom wall 15, And has an upper groove 13A and a lower metal groove 13B.

The first terminal groove 11, the second terminal groove 12, and the metal fitting groove 13 are also communicated with each other. That is, all of the first terminal groove 11, the second terminal groove 12 and the metal fitting groove 13 are formed in the open space 17 formed above the bottom wall 15 of the housing 10 Respectively. Therefore, in this portion, the upper wall 14 is cut out, and this open space 17 enables the arrangement and rotation of the movable member 3. 2 (C), the upper wall 14 also has a notched portion at the rear portion thereof, at the positions of the metal fitting grooves 13 on both end sides in the terminal arranging direction, Thereby enabling sufficient elastic displacement upward of the corresponding portion.

The first terminal groove 11, the second terminal groove 12 and the metal fitting groove 13 are provided with a plurality of openings 17 in the front-rear direction and at a portion located entirely between the open space 17 and the rear receiving opening 16 Position regulating portions 18A, 18B and 18C formed in the shape of a line between the upper wall 14 and the bottom wall 15 in the up-and-down direction are formed, and the opposite inner surfaces of the respective grooves are connected to each other. The position regulating portions 18B and 18C formed in the second terminal groove 12 and the metal fitting groove 13 are located at the same position in the front and rear direction and the position regulating portions 18B and 18C formed in the first terminal groove 11 18A.

In the terminal arrangement direction, the bottom wall 15 corresponding to the first terminal groove 11, the second terminal groove 12 and the fitting groove 13 is provided with a first terminal 20, a second terminal 20, A terminal 30, and a fixing portion for fixing the metal fitting 40 are formed. The fixing portion 19A of the first terminal groove 11 is formed such that the thickness of the front end portion of the bottom wall 15 is tapered and the fixing portion 19A of the second terminal groove 12 and the fitting groove 13, (19B, 19C) are formed such that the thickness of the rear end of the bottom wall (15) is tapered.

The first terminal 20, the second terminal 30 and the metal fitting 40, which are respectively inserted and held in the first terminal groove 11, the second terminal groove 12 and the metal fitting 13, The movable arm portion 21 and the movable arm portion 31 located above the first terminal 20 and the second terminal 30 are formed in a substantially H-shape in the transverse direction, And the fixed arm portions 22 and 32 are connected to each other by connecting portions 23 and 33 located in the middle portion in the forward and backward directions. In the metal fitting 40, the upper arm portion 41 located above and the lower arm portion 42 located below the upper arm portion 41 are connected by a connecting portion 43 located at the intermediate portion. The connecting portion 23 of the first terminal 20 is located forward of the corresponding position regulating portion 18A and the connecting portion 33 of the second terminal 30 and the connecting portion 43 of the metal fitting 40 correspond to each other Are positioned behind the respective position regulating portions 18B and 18C.

2 (A), the first movable arm 21 located above the rear end of the housing 10 and the first terminal 20 of the first movable arm 21 in the front- And extends to a position slightly ahead of the front end in the forward direction. The first movable arm portion 21 has a shape extending forward from the substantially horizontal direction after the front portion of the first movable arm portion 21 is received by the inclined portion 24B upwardly and then forwardly from the first connecting portion 23, And the rear side of the first connecting portion 23 constitutes the first pressing movable arm portion 25. [ The first pressure-applied arm portion 24 is formed with a first depressed portion 24A having a shallow concave shape on the lower edge near its front end, and a first pressing portion 24A protruding downward is formed at the rear end of the first pressing movable arm portion 25. [ A portion 25A is formed. The first press-fit portion 24A has a shallow concave shape as described above, and also functions as a guide portion for guiding the cam of the movable member 3 to be described later. Such a first movable arm portion 21 is configured such that when the first pressed portion 24A receives a force upward from the movable member 3 to be described later, the position of the first connecting portion 23 The first pressurizable movable arm portion 25 is bent toward the downward direction and is inclined. As shown in Fig. 2A, the first press-fit portion 24A forms a shallow concave shape with an inclined portion at the front and rear portions and a straight portion at the intermediate portion.

The first fixed arm portion 22 of the first terminal 20 extends in the front-rear direction to the same position in the front-rear direction as the first pushing movable arm portion 25 of the first movable arm portion 21 And all of them extend forward of the first pressure arm portion 24 of the first movable arm portion 21, and the front end thereof protrudes out of the housing. The first fixed arm portion 22 has a first front fixed arm portion 26 and a first rear fixed arm portion 27 in the longitudinal direction relative to the position of the first connection portion 23. The first front fixed arm portion 26 has an upper edge portion 28A which is formed so as to be higher stepwise from a position near the connection portion 23 in the front-rear direction and which extends in the horizontal direction from the height direction to the intermediate position, A top portion 28C extending upward from the top edge 28A of the top portion 28B and a top portion 28C extending in the width direction and having a top portion at the top of the top portion 28B; And a first connecting portion 29 protruding forward from the housing toward the front.

The first connecting portion 29 is bent downwardly so as to have a lower edge positioned slightly below the bottom surface 15 of the bottom wall 15 of the housing 10, So that solder connection is possible. A first fixed portion 29A is formed on the first connecting portion 29 on the side of the rear side edge thereof and the first fixed portion 29A is fixed to the bottom wall 15 of the above- Shaped fixing portion 19A formed in the first terminal 20 and plays a role in fixing the first terminal 20 to the housing 10.

The first rear fixed arm portion 27 of the first fixed arm portion 22 of the first terminal 20 extends rearward from the position of the first connection portion 23, And reaches the position corresponding to the first pressing portion 25A of the first pressing portion 21. A first support portion 27A protruding upward is formed at the rear end of the first post-fixed arm portion 27 so as to face the first pressurizing portion 25A of the first movable arm portion 21. [ The first pressing portion 25A and the first supporting portion 27A opposed to each other press the flat conductive body F at a close distance but the connecting circuit portion F1 is formed on the upper face of the flat conductive body F as shown in Fig. The first pressing portion 25A is electrically connected to the connection circuit portion F1 while the first supporting portion 27A is electrically connected when the connection circuit portion is formed on the lower surface of the first pressing portion 25A, And when they are formed, they are electrically connected to the connection circuit.

The first terminal 20 thus formed is inserted into the first terminal groove 11 from the front side to the rear side. The locking protrusion 27B formed on the first rear fixed arm portion 27 is pushed into the lower surface of the position regulating portion 18A and the first front fixed arm portion 26, The first terminal 20 is prevented from being detached by fixing the second terminal 29A by being fitted in the fixing portion 19A of the bottom wall 15 of the housing 10. [

The second terminal 30 is connected to the first terminal 20 by the second movable arm 31 forwardly to the vicinity of the front end of the housing 10 and rearwardly as shown in Fig. And extends to the vicinity of the rear end of the housing 10 longer than the first movable arm portion 21 of the housing 10. The second movable arm portion 31 forms a second pressurized arm portion 34 in front of the second connecting portion 33 and the rear portion constitutes a second pressurizable movable arm portion 35. The second pressure-applied arm portion (34) is formed with a second pressed portion (34A) which is slightly bent concavely at its lower edge and is laterally elongated in the front and rear direction. The second pressing portion 35A is formed. Such a second movable arm portion 31 is configured such that when the second pressured portion 34A receives a force upward from the cam portion of the movable member 3 described later, The second pressing movable arm portion 35 is bent downward to be inclined with the position of the second pressing movable arm portion 35 as a fulcrum.

The second fixed arm portion 32 of the second terminal 30 extends in the forward and backward directions all the way to the forward position substantially the same as the second pressure arm portion 34 of the second movable arm portion 31, And the rear portion extends rearward beyond the second connecting portion 33 to form the second rear fixed arm portion 37 and the second rear fixed arm portion 37 is formed so that the rear rear fixed arm portion 37 And the rear end protrudes out of the housing. The second front fixed arm portion 36 has a straight cam abutting portion 38A formed on the upper edge of the cam supporting portion 38 of the front portion. The second posterior fixed arm portion 37 is formed with a second support portion 37A protruding upward from the same position as the second pushing portion 35A in the front-rear direction.

The second pressing portions 35A and the second supporting portions 37A opposed to each other are used to clamp the flat conductive body F in the same manner as in the case of the first terminal 20 so that even when the flat conductive body F is used for electrical connection with the flat conductive body And both of them may be used.

The upper end of the cam support portion 38 of the second front fixed arm portion 36 is positioned at the lower edge of the position restricting portion 18B on the island of the housing 10 or slightly below the lower edge thereof, And a cam abutting portion 38A that forms a straight edge extending in the direction of the arrow A is formed. The cam abutting portion 38A is formed in a range extending forwardly and rearwardly of the second press-fitted portion 34A in the front-rear direction.

The second front fixed arm portion 36 is provided with a position corresponding to the position regulating portion 18B of the housing 10 between the cam abutting portion 38A and the second connecting portion 33 in the front- A latching protrusion 36B protruding upward is formed.

As described above, the second connection portion 39 is formed on the second terminal 30 at the rear end portion of the first terminal 20 opposite to the first connection portion 29 in the front-rear direction.

The second connecting portion 39 protruding from the rear end of the second posterior fixed arm portion 37 to the outside of the housing has a downwardly directed lower edge located slightly below the bottom surface 15 of the bottom wall 15 of the housing 10 And the lower edge thereof is brought into contact with the circuit surface corresponding to the circuit board to enable solder connection. A second fixed portion 39A is formed in the second connection portion 39 on the side of the front edge of the second fixed portion 39A so that the second fixed portion 39A is tapered in the above- 19B to serve as one of the functions of securing the second terminal 30 to the housing 10.

The second terminal 30 thus formed is inserted into the second terminal groove 12 from the rear side toward the front side. The second front fixed arm portion 36 of the second fixed arm portion 32 penetrates between the bottom wall 15 of the housing 10 and the position restricting portion 18B on the island, The latching protrusion 36B formed on the front fixed arm 36 engages with the lower edge of the position regulating portion 18B and the second fixed portion 39A of the second rear fixed arm 37 And is fixed by being fitted into the fixing portion 19B of the bottom wall 15 of the housing 10 so that the second terminal 30 is prevented from coming off.

2C, the metal fitting 40 is formed in a shape similar to that of the second terminal 30. However, when compared with the second terminal 30, the difference is that the second terminal 30 The upper arm portion 41 corresponding to the second movable arm portion 31 of the second terminal 30 has a relatively large width and the engagement portion 45A at the rear end has a relatively large width The lower end of the lower arm portion 42 corresponding to the second rear fixed arm portion 37 of the second terminal 30 is provided with the second terminal 30, There is no portion corresponding to the second support portion 37A of the first housing 30. Otherwise, since the second terminal 30 is the same as the second terminal 30, " 10 " is added to the sign of the second terminal 30, and a description thereof will be omitted.

The engaging portion 45A of the metal fitting 40 is greater than a large grating and protrudes downward. The front edge is substantially perpendicular to the front-rear direction, and the rear edge is inclined to the lower edge. The upper wall 14 of the housing is largely cut out from above the movable arm portion 45 of the upper arm portion 41 in which the engaging portion 45A is formed and the tip end of the inserted flat conductive body F is pressed So that the engagement portion 45A can be further inserted up to a predetermined position of the flat conductive member F by elastic bending.

As described above, in the connector main body 2 in which the first terminal 20, the second terminal 30 and the metal fitting 40 are held with respect to the housing 10, the movable member 3 is movable, As shown in Fig.

The movable member 3 is made of the same electric insulating material as the housing 10 as a member extending over substantially the entire width of the housing 10 as shown in Figs. 1A and 1B.

The movable member 3 is rotatably supported between the open position shown in Fig. 2 and the closed position shown in Fig. 2, the axis of rotation of the movable member 3 is located in the lower half of the movable member 3, and the lower half thereof enters the open space 17 formed in the entire housing 10. 2, the upper half located outside the open space 17 and protruding upward from the upper wall 14 of the housing 10 serves as an operating portion 51 for the user to rotate the movable member 3 have. The movable member 3 has a cam portion including a first cam portion 55, a second cam portion 56 and a third cam portion 57 which will be described later and is rotatable by the presence of the cam portion. The position of the rotation axis of the cam portion itself is not fixed with respect to the housing 10 but is movable. That is, depending on the situation, the movable member 3 pivots about the rotating pivot axis. The pivot axis is also in the same straight line with respect to the first cam portion 55, the second cam portion 56, and the third cam portion 57.

2, the first terminal 20, the second terminal 30 (the first terminal 20, the second terminal 30, and the second terminal 30) are provided in the lower half of the movable member 3 in the width direction of the movable member 3 The first to-be-pressed arm portions 24 of the first terminal 20, the second to-be-pressed arm portions 34 of the second terminal 30, and the upper side of the metal fitting 40 at positions corresponding to the metal fittings 40 A slit-shaped first groove portion 52, a second groove portion 53, and a third groove portion 54, which allow the entire arm portion 41 to enter, are formed in a front-back direction. Therefore, the groove widths (the widths of the groove inner surfaces in the direction perpendicular to the paper surface) of the first groove portion 52, the second groove portion 53 and the third groove portion 54 are equal to the widths of the first terminal 20, The terminal 30 and the metal plate 40, respectively. The first cam portion 55, the second cam portion 56 and the third cam portion 57 connecting the inner surfaces of the grooves are formed in the first groove portion 52, the second groove portion 53 and the third groove portion 54 Respectively.

The first cam portion 55 formed in the first groove portion 52 located in correspondence with the first terminal 20 is located at a position corresponding to the position of the movable member 3 at the open position, And is located at a lower portion of the first groove portion 52 and has a horizontally long elliptical cross section. 2 (A) in which the movable member 3 is in the open position, with respect to the distance between the first press-fit portion 24A and the peak portion 28C of the first terminal 20, The height dimension of the first pressing portion 55 is small and the transverse dimension is set large with respect to the interval between the first pressured portion 24A and the top edge portion 28A. 2 (A), the pivot center X of the first cam portion 55 is located on the center of curvature of the arcuate portion on the right side of the elliptical cross section, and the extension line of the above described pivot axis of the movable member 3 . Therefore, the straight line having the rotation center X as one end and the arbitrary point of the arc portion of the first cam portion 55 as the other end is the cam radius. In this way, of the arc portions on both the left and right sides of the first cam portion 55, the arc portion on the right side where the turning center X is present in FIG. 2A is formed with the arc portion 55A on the right side, Thereby forming a large-diameter radius portion 55B. The small-diameter semi-cylindrical portion 55A forms a sliding contact range in sliding contact with the rising portion 28B serving as a cam abutting portion. The lateral dimension of the first cam portion 55 in the attitude shown in Figure 2A is about the distance between the first pressured portion 24A and the upper side edge portion 28A of the first terminal 20 described above 3, when the first cam portion 55 is rotated about the rotation center X to the closed position shown in Fig. 3, the large-diameter cam portion 55B is in contact with the first terminal 20 The first pressable arm portion 24 of the first movable arm portion 21 of the first movable arm portion 21 has a cam radius enough to elastically displace the first pressed portion 24A on the concave portion upward. The small-diameter semi-cylindrical portion 55A is formed between the arc-shaped portion 28A-1 formed by being immersed in the upper side edge portion 28A of the first terminal 20 at the open position shown in FIG. 2A, But it enters the arc-shaped portion 28A-1 in accordance with the rotation to the closed position and stabilizes the position of the rotation center X.

The second cam portion 56 formed in the second groove portion 53 positioned in correspondence with the second terminal 30 has a small cam portion 56A on the right side and a small cam portion 56A on the right side as shown in FIG. And has a large fan-shaped radius portion 56B having a small circular arc on the left side. The pivotal center X is at a position coinciding with the first cam portion 55 and is in sliding contact with the cam abutment portion 38A And constitutes the center of curvature of the arc of the small-diameter semicircular portion 56A forming the sliding contact range. The cam abutting portion 38A of the cam supporting portion 38 is positioned below the top portion 28C of the first terminal 20 with respect to the pivotal center X. Therefore, The cam radius of the small cam portion 56A contacting the first cam portion 55 is larger than the cam radius of the first cam portion 55 and has a constant cam radius difference with respect to the first cam portion 55 at any rotational angle position. The second cam portion 56 of the second cam portion 56 is formed so that the second cam portion 56 rotates about the pivotal center X in the same manner as the large cam follower portion 55B of the first cam portion 55, The pressing radius of the second pressing portion 34 of the second terminal 30 of the second terminal 30 is sufficiently large enough to elastically displace the second pressing portion 34A upward by the second pressing portion 34A I have.

2 (B), the second cam portion 56 is provided on the upper side (the right side in FIG. 3 (B)) from the large-diameter radius portion 56B on the left side to the small- And the engaging pressure receiving portion 56D is formed in a projecting shape on the edge 56C. 2 (B), the engagement pressure receiving portion 56D is located near the left end of the second press-fitted portion 34A of the second terminal 30. [ As a result of the recessed curved second depressed portion 34A being formed in a concave curved shape, the portion near the right end of the second depressed portion 34A has a right downward slope and forms the engaging pressed portion 34A-1.

The third cam portion 57 formed in the third groove portion 54 located in correspondence with the metal fitting 40 is formed in the second groove portion 53 as shown in Fig. Shaped portion having a small diameter portion 57A on the right side and a large radius portion 57B having a small arc on the left side and the pivot center X is formed in a substantially fan- The arc of the circular arc of the small-diameter cam portion (57A), which is in a position coinciding with the pivot center of the first cam portion (55) and the second cam portion (56) and which forms a sliding contact range slidingly contacting the cam abutment portion (48A) Center of curvature. The cam abutment portion 48A of the cam supporter 48 is positioned below the top portion 28C of the first terminal 20 in the same manner as the second cam portion 56 with respect to the pivotal center X The cam radius of the small cam portion 57A contacting the cam abutment portion 48A is larger than the cam radius of the first cam portion 55 and has a constant cam radius difference at any rotational angle position. The third cam portion 57 of the third cam portion 57 has the third cam portion 57 as the center of the rotation center X as in the third cam portion 55B of the first cam portion 55, The pressing arm portion 44 of the upper arm portion 41 of the metal fitting 40 has a cam radius enough to elastically displace the pressing portion 44A upward by the pressing portion 44A .

The third cam portion 57 is formed on the upper side (the right side in FIG. 3C) from the large-diameter radius portion 57B on the left side to the small-diameter cam portion 57A on the right side, And an edge portion obtained by forming the molten portion is used as an engagement pressure receiving portion 57D. The engaging pressure receiving portion 57D is engaged with the engagement pressure receiving portion 57A of the second cam portion 56 when the movable member 3 is rotated in the counterclockwise direction than the position shown in FIG. 56D.

The connector of this embodiment having such a configuration is used and functions in the following manner.

First, the connector 1 is disposed at a predetermined position on a circuit board (not shown), and the first connection portion 29 of the first terminal 20, the second connection portion 39 of the second terminal 30, The solder holding portion 49 of the metal fitting 40 is soldered to the corresponding portion of the circuit board and fixed together.

The movable member 3 is moved to the open position in the standing posture as shown in Fig. 2 and the housing 10 is housed in the connector 1 mounted on the circuit board, The opening portion 16 is opened rearward so that the insertion of the flat conductive member F is enabled.

Next, the connecting portion of the flat conductive body (F) is inserted forward into the receiving opening (16). The first terminal 20 is held between the first pressing portion 25A of the first movable arm portion 21 and the first supporting portion 27A of the first fixed arm portion 22 and the second terminal 30 is held between the first The gap between the second pressing portion 35A of the movable arm portion 31 and the second supporting portion 37A of the second fixed arm portion 32 is slightly wider than the thickness of the connecting portion of the flat conductive member F Therefore, the connecting portion of the flat conductive member F is easily inserted. However, as for the metal fitting 40, it is preferable that the distance between the engaging portion 45A of the upper arm portion 41 and the lower arm portion 42 of the metal fitting 40 is smaller than the thickness of the connecting portion of the flat conductive body F The flat conductive body F is lifted up to the predetermined position by lifting the engagement portion 45A at the front end of the flat conductive body F so that the engagement portion F3 on the cut- (45A) is inserted, whereby the balanced conductor (F) is temporarily held.

Next, as shown in Fig. 3, the movable member 3 is rotated in the normal direction (clockwise direction) from the open position in Fig. 2 to the closed position in the horizontal posture as a regular operation procedure for cable connection. The first cam portion 55, the second cam portion 56 and the third cam portion 57 of the movable member 3 are pivoted about the pivotal center X so that their small-diameter cam portions 55A And 56A and 57A slide on and come into contact with the upper edge 28A of the first terminal 20 and the second terminal 30 and the cam abutment 38A of the metal fitting 40A , The large-diameter semi-cylindrical portion 55B (56B; 57B) presses the corresponding second terminal 20, the second terminal 30 and the second pressed portion 24A (34A; 44A) of the metal fitting 40 upward . As a result, the first terminal 20, the second terminal 30, and the metal fitting 40 are connected to the first to-be-pressed arm portions 24, the second movable arm portions 31 of the first movable arm portions 21, The second pressurizing arm portion 34 and the pressurizing arm portion 44 of the first pressurizing movable arm portion 25 are lifted by the principle of the lever and the first pressurizable movable arm portion 25, The arm portions 45 are bent downward and the first pressing portion 25A and the second pressing portion 35A press the upper surface of the flat conductive body F downward and the engaging portion 45A further moves downward It is displaced to maintain its position. Therefore, the flat conductive body F is in contact with the first pressing portion 25A and the second pressing portion 35A which have a predetermined contact pressure and function as a contact portion of the first terminal 20 and the second terminal 30 The connection is made electrically, and the engagement portion 45A of the metal fitting 40 prevents the engagement portion F3 from being reliably disengaged.

Next, the movable member 3 is rotated in one direction from the posture of Fig. 2 to the posture of Fig. 4 without being subjected to the normal operation of rotating the posture from Fig. 2 to the posture toward the forward direction, And then a turning operation is performed toward the closed position via the posture of Fig. 5 in the forward direction.

When the movable member 3 is in the attitude shown in Fig. 4 by the pivoting operation in the negative direction, the rear surface (the seat surface in Fig. 4) of the operating portion 51 of the movable member 3, It touches the wealth. When the abutment is made, the movable member 3 is urged in the negative direction, and the movable member 3 (the abutment point of the movable member 3) 3) tries to rotate counterclockwise. As described above, in the cam portion, the first cam portion 55, the second cam portion 56, and the third cam portion 57 pivot about the same axis as a cam axis, but the position of the cam axis itself is fixed The first cam portion 55, the second cam portion 56 and the third cam portion 57 are lifted and the movable member 3 is lifted from the housing 10 at the abutting point, The first cam 20 and the second cam 20 are moved in the same direction as the first cam 20 and the first cam 20 and the first cam 20, The movable member 3 is further rotated in the forward direction to engage with the fixing position (corresponding to Fig. 2) Posture), the corner portion is made to be a standing portion (Q) And then tries to sit on the mountain top 28C as shown in Fig. 5 (A) beyond the granular portion 28B. The positions of the cam portions in Figs. 4 (A) and 5 (A) are now the deviated rotational positions displaced from the normal position.

In the case where the first cam portion 55 is moved away from the first cam portion 55 as described above, the conventional movable member, which can not take the same countermeasures as the present embodiment in the second cam portion, When the turning operation is performed in the forward direction from the established opening position toward the closing position, the operation force exits the housing 10 as shown in FIG. 6 during the rotation in the forward direction.

However, in the present embodiment, the engaging pressure receiving portion 56D on the projection is formed on the second cam portion 56, and even when the movable member 3 is rotated in the negative direction as shown in Fig. 4B The engagement pressure receiving portion 56D engages the second pressed portion 34A of the second terminal 30 so as to press the second pressed portion 34A upward, And the engagement point 56E, which is the contact point with the pressed portion 34A, is moved from the left side to the right side. The engaging point forms an engaging pressed portion moving on the second pressed portion 34A when taken in the second pressed portion 34A. In the second cam portion 56, the engagement point is always located at the engagement pressure receiving portion 56D on the projection and is a fixed point.

7, which is an enlarged view of the second cam portion 56 in Fig. 4 (B), the second pressed portion 34A has a concave curved shape. In this case, And the right short side 34A-R of the second press-fitted portion 34A is inclined to the right downward slope.

Therefore, the position of the engaging point 56E, that is, the engaging pressed portion 34A-1 moving on the second press-fitted portion 34A is the same as the position of the right end 34A-R of the right downward gradient, The engaging pressure receiving portion 56D of the second cam portion 56 is prevented from further moving in the right short arm 34A-R due to the inclination, The movement from the position to the right is stopped. However, since the movable member 3 is still subjected to the turning operation in the forward direction at the limit position, the movable member 3 tries to rotate in the forward direction. Therefore, the second cam portion 56 is located at the limit position (for example, as shown in Fig. 7A) in contact with the right short side 34A-R of the engaging pressed portion 34A-1 of the second terminal 30 And the torque is received in the same direction by the operating force rotating in the forward direction with the supporting point as the supporting point. In response to this torque, the second cam portion 56 tries to rotate in the forward direction around the limit position ML as an instant, and tries to move leftward by receiving the pressing force toward the left. The first cam portion 55 integrally formed with the second cam portion 56 also tends to rotate in the forward direction and is moved in the leftward direction while being in a position different from the second cam portion 56 in the axial direction, I will try. The second cam portion 56 receives a force in the downward direction as a reaction force due to the elastic deflection from the second pressure arm portion 34 of the second terminal 30, (55). Therefore, the first cam portion 55 simultaneously receives the leftward force and the downward force by the forward rotation about the limit position ML of the second cam portion 56 as the instant center, 7 from the state of the dotted line in Fig. 7 in which the edge portion of the transition position from the one-port granular portion 28B to the peak 28C is the upright portion Q, And returns to the normal position on the portion 28A. In this way, the first cam portion 55 returned to the normal position becomes the state shown in Fig. 2A, and the movement of the movable member 3 in the forward direction is blocked by the granular portion 28B, To the closed position under normal rotation.

In the present invention, the engagement pressure receiving portion 56D formed on the second cam portion 56 is formed in a projecting shape as shown in the above-described drawings and has a projected image that has the same action Various variations are possible. For example, when the engaging pressure receiving portion 56D described above is prepared while being in the posture of FIG. 4B, the upper edge of the second cam portion 56, as shown in FIG. 8A, The engaging pressure receiving portion 56D-1 on the projection may be positioned at the right end instead of the center position of the engaging pressure receiving portion 56D-1, or the right end may be a simple corner portion as shown in Fig. 8B, As shown in Fig. 8C, the right side portion of the upper edge portion may be formed so as to be submerged in a single phase, and the corner portion constituting the single phase may be used as the engaging pressure portion 56D-3. Further, 8 (D), the second cam portion 56 is formed into a horizontally elongated ellipse similar to the shape of the above-described first cam portion 55, 2 to be engaged with the claw portion 34A-2 formed on the right end of the arm portion 34, It may be a custom pressure receiving portion (56D-4).

In the present embodiment, as shown in Fig. 7, the positional relationship between the limit position ML of the engaging point 56E and the portion Q on which the first cam portion 55 is mounted is in the front-rear direction, The front and rear positional relationship is such that the second cam portion 56 does not move the engaging point 56E toward the supporting point Q So that the same effect can be obtained.

1: connector 34: second pressure arm portion
3: movable member 34A: second pushed portion
20: first terminal 34A-1: engaging pressed portion
21: first movable arm portion 35: second pressed movable arm portion
22: first fixed arm portion 35A: second pressing portion
24: first pressure arm portion 55: first cam portion
24A: First to-be-urged portion 55A:
25: first pressing movable arm portion 55B: large-
25A: first pressing portion 56: second cam portion
28A: upper edge portion 56A:
28B: a granular part 56B: a large-
28C: top portion 56D, 56D1 ~ 3: engagement pressure portion
30: second terminal 56E: engagement point
32: second fixed arm portion F: balanced conductor

Claims (2)

The fixed arm portion and the movable arm portion on the arm are formed in parallel to each other so as to extend in the same direction to each other in a terminal made by holding the flat surface of the metal plate and the fixed arm portion and the movable arm portion are connected to each other by the connecting portion in the longitudinal middle portion, Wherein the movable arm portion is fixed by the housing and the movable arm portion forms a pressurizing portion at one end in the longitudinal direction and a pressurized portion at the other end, and the movable member, which is subjected to the turning operation, The cam portion of the movable member is displaced in the plane including the plane of the terminal by pressing the portion to be pressed of the movable arm portion by a cam displacement amount of a predetermined amount from the movable portion toward the closed position, The arm portion is displaced angularly with the connecting portion as a supporting point to displace the pressing portion, In the electrical connector for the flat conductive member for applying a pressing force to the flat conductive member in the pressing portion,
The plurality of terminals are arranged in a direction orthogonal to the flat surface of the terminal, the plurality of terminals have at least first and second different terminals, and the first terminal is arranged to be opposed to the pressed portion of the movable arm portion And a step of forming a mountain-shaped portion at a top portion thereof and regulating the movement of the movable member in the direction of the other end from the raised portion to the cam portion Wherein the upper end portion of the fixed arm portion is provided with a rotation guide portion for guiding the first cam portion of the movable member about the cam axis of the normal position by the upper edge portion and the granular portion, Is formed as a straight upper portion extending in the longitudinal direction in the range corresponding to the portion of the upper surface
The cam portion has a first cam portion corresponding to the first terminal and a second cam portion corresponding to the second terminal on one cam axis line, and when the movable member is subjected to the turning operation, The camshaft is rotated about the camshaft axis,
The cam portion is provided with a cam follower portion in which the first cam portion and the second cam portion respectively abut against or form a gap with respect to the rotation guide portion or the upright portion of the fixed arm portion when the movable member is in the open position, When the movable member comes to the closed position, has a larger radius of curvature that brings contact pressure to the pressed portion,
When the movable member is rotated in the forward direction after being rotated in the negative direction at the open position, the first cam portion sits on the top of the mountain by the forward rotation of the movable member, In which the pressed portion of the movable arm portion of the second terminal receives the contact pressure from the second cam portion is prevented from moving from the longitudinal direction to the other end side, And the second cam portion has an engaging pressure receiving portion for engaging with the engaging receiving portion, and the movable member rotates in the forward direction with the engaging point between the engaging pressed portion and the engaging pressure receiving portion as a fulcrum, And the cam axis can be returned to the normal position when the first cam portion is lifted from the position where the cam portion is raised. The method according to claim 1,
The second terminal is configured such that the engaging pressed portion formed in the pressed portion is located at the other end side in the longitudinal direction than the point at which the engaging pressure receiving portion of the second cam portion is raised with respect to the first cam portion during the forward rotation of the movable member An electrical connector for a flat conductor.

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