JPH09219248A - Lever connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector capable of being prevented from being enlarged while being rendered into multipole. SOLUTION: When a female-side connector housing 10 and a male-side connector housing 20 to be united with each other are faced from both surfaces of a frame-shaped bracket 30 and then a lever 40 rotatably supported to the bracket 30 is turned, a cam pin 51 formed on the female connector housing 10 and a cam pin 52 formed on the male connector housing 20 are engaged with cam grooves 53, 54 formed on the lever 40, and the connector housings are drawn and united with each other. Therefore, fitting can be performed with a small force by using the lever 40 in the uniting place while performing miniaturization by removing the lever 40 from respective connector housings 10, 20. Particularly, since the lever 40 is engaged with both connector housings 10, 20, the connector housings can be reliably united.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever-type connector, and more particularly to a lever-type connector that is mounted at a predetermined position via a bracket.

[0002]

2. Description of the Related Art In connectors used for automobiles,
While the fitting force increases due to the increase in the number of poles, a lever-type connector having a rotating lever that utilizes the lever principle is used. That is, this principle is used when the lever is rotated, and a large force is exerted with a small force so that the mating connector can be fitted and connected. On the other hand, as the number of poles and lever type increases, the connector itself becomes larger, and it becomes unstable by simply hanging it between wire harnesses.Therefore, a predetermined bracket is attached to the vehicle body in advance and fixed to the vehicle body via this bracket. doing.

[0003]

In the above-mentioned conventional lever-type connector, the size of the lever is increased as much as the lever is mounted, which is an obstacle to handling during wiring. In addition, since a large force is required to pull the mating connector, the arm portion of the U-shaped lever must be supported by sandwiching it from both sides. Therefore, not only the size of the lever is increased, but a guide wall for reinforcement is provided, and the size is increased by two.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lever-type connector capable of preventing the size from increasing while increasing the number of poles.

[0005]

In order to achieve the above object, the invention according to claim 1 is such that a frame-shaped bracket and a lever piece rotatably supported with respect to the bracket can be fitted to each other. , The connector housings inserted from both sides of the frame-shaped bracket are engaged with the rotating lever piece and both connector housings, and the both lever housings are pulled together to be fitted by the rotation operation of the lever pieces. It is configured to include a cam mechanism for connection and connection.

[0006] The invention according to claim 2 is based on claim 1.
In the lever-type connector described in (1), the lever piece is mounted on the inner peripheral surface of the frame-shaped bracket.

[0007]

In the invention according to claim 1 having the above-mentioned structure, the lever housing rotatably supported with respect to the bracket is inserted from both sides of the frame-shaped bracket so that the connector housings can be fitted to each other. When the lever is rotated, the lever piece and the two connector housings are engaged with each other by the cam mechanism, and the two connector housings are attracted to each other by the turning operation of the lever piece, and are fitted and connected.

Further, in the invention according to claim 2 configured as described above, when the connector housing is mounted in the frame-shaped bracket, the lever piece is sandwiched between the inner peripheral surface of the bracket and the connector housing. Eliminating the need for a guide wall for the lever piece only.

[0009]

As described above, according to the present invention, by mounting the lever piece on the bracket, the connector housing to be routed can be downsized, and the handling operation force can be reduced while facilitating the routing. It is possible to provide a simple lever-type connector. At this time, it is possible to fix one connector housing directly to the bracket and pull only the other connector housing with the lever piece, but if the side to be directly fixed is not properly attached to the bracket, the connector housings The mating connection of is incorrect. On the other hand, in the present invention, the lever pieces are engaged with both connector housings and drawn together, so that the connector housings can be reliably drawn together for fitting connection.

According to the second aspect of the invention, since the lever piece is supported by the bracket as the frame body, the guide wall is not required, and the size can be reduced by one turn.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing a lever-type connector according to an embodiment of the present invention.
FIG. 2 is a sectional view showing the start state of the fitting operation,
FIG. 3 is a sectional view showing the end state of the fitting operation.

Referring to FIG. 1, the present lever-type connector includes a rectangular box-shaped female connector housing 10, a male connector housing 20 having a hood portion 21 into which the female connector housing 10 can be inserted, and the male connector. It is composed of a frame-shaped bracket 30 to which the housing 20 can be attached, and a U-shaped lever 40 that is rotatably attached to the inner peripheral surface of the frame-shaped bracket 30. A cam pin 51 is erected in the middle of the outer side surface, a cam pin 52 is erected in the middle of the outer side surface of the male connector housing 20, and the lever 40
To the cam groove 5 corresponding to both cam pins 51 and 52, respectively.
The cam mechanism 50 is configured by forming the cams 3, 54.

In the present embodiment, the female connector housing 10 is inserted into the hood portion 21 of the male connector housing 20 for fitting and connection, but a pair of connectors that can be fitted to each other is formed. Any shape may be used as long as it is one. Further, either side may hold the terminal fitting on either side of male or female. The bracket 30 is formed in a frame shape having two frame holes into which the male connector housing 20 can be inserted, and the male connector housing 2 is opened from the lower side of the opening.
0 insertion, female connector housing 10 from the upper side of the opening
Is designed to be inserted. On the outer surface of the male-side connector housing 20 that is mounted on the bracket 30 in advance, the engaging protrusions 22 each having three protrusions 22a are provided at three locations.
The lock arm 3 having flexibility is formed on the inner peripheral surface of the bracket 30 corresponding to the engaging convex portion 22.
A lock portion 31 having 1a is formed. The lock arm 31a has a substantially plate shape extending along the opening axis direction of the bracket 30, and has a wedge-shaped protrusion 31 on the inner surface of the upper end.
The bracket 3 is provided with a1
It is formed in a so-called seesaw shape connected to the inner peripheral surface of 0. Further, on both sides of the lock arm 31a, ridge-shaped guide protrusions 31b, 31b extending in the vertical direction are formed.

On the other hand, the three protrusions 2 on the engaging projection 22
Two of 2a are arranged on the relatively lower side with a gap so as to abut the lower surfaces of the guide protrusions 31b, 31b, and one can be engaged by overcoming the protrusion 31a1 at the upper end of the lock arm 31a. As described above, it is arranged on the relatively upper side between the two protrusions 22a. Therefore, from the lower side of the frame-shaped bracket 30, the male connector housing 20
As the projections 22a are inserted upwards, the projections 22a between them bend the lock arm 31a to get over the projections 31a1 at the upper end, engage with the upper surface of the projections 31a1, and the remaining two projections 22a, 22a Guide protrusions 31b, 31b
Of the male connector housing 20, the male connector housing 20 is engaged and held inside the bracket 30.

In this embodiment, the male connector housing 20 is mounted on the bracket 30 in advance, but it is not always necessary to mount one connector housing. Of course, if you keep it,
The female connector housing 10 may be mounted, and the fixing structure at that time may be a structure other than the lock part 31 and the engaging convex part 22 described above. If one of them is mounted in advance, the number of connector housings whose positions are not fixed becomes one, so that the mounting work becomes easy. Further, the shape of the frame for mounting the male connector housing 20 is not particularly limited and can be changed as appropriate.

A pair of shaft support pins 32, 32 facing each other are provided upright in the center of the inner wall surface of the bracket 30 in the longitudinal direction, and the arm portions 42, 42 at both ends of a lever 40 formed in a U-shape. Shaft holes 42a, 42a are formed at the front ends of the shaft support pins 32, 32 so that the shaft support pins 32, 32 can be rotatably engaged therewith. This allows lever 40
The base portion 43 connecting the both arm portions 42, 42 is rotatable in an arc from the upper end of the wall surface in one lateral direction of the bracket 30 to the upper end of the wall surface in the other lateral direction.

In the present embodiment, the lever 40 is formed in a U-shape, and both arm portions 42 are held by being locked to the inner peripheral wall surface of the bracket 30, but the lever 40 itself is not necessarily U-shape. The cam mechanism 50 does not have to be
It suffices that the female connector housing 10 and the male connector housing 20 can be fitted and connected by attracting each other. Therefore, it can be appropriately changed such that it has a shape of sandwiching the outside of the bracket 30 or is formed in a plate shape and is rotatably supported on one inner side surface of the bracket 30.

The shaft hole 42 is formed at the tip of the arm portion 42.
a, 42a around the cam-shaped bulging portion 42 bulging in the radial direction
b, and the coaxial hole 4 is provided in the cam-shaped bulging portion 42b.
Two sets of cam grooves 53, 54 forming a part of a spiral shape are formed around 2a, 42a. The cam grooves 53 and 54 are
Due to the spiral shape, the shaft hole 42 is
a, 42a, and the other end of each arm 42
The inlets 53a and 54a are formed by opening on the side surface. Here, when the base portion 43 of the lever 40 is at the upper end of one wall surface of the bracket 30, which is the left side in FIG.
The introduction port 53a is located right above the shaft hole 42a, and the introduction port 54a
a is located directly below the coaxial hole 42a. These cam grooves 5
Corresponding to Nos. 3 and 54, a cam pin 51 is provided upright in the middle of the outer surface of the female connector housing 10, and a cam pin 52 is provided upright in the middle of the outer surface of the male connector housing 20.

In this manner, the male connector housing 20 is mounted on the bracket 3 with the introduction port 53a opening just above the shaft hole 42a and the introduction port 54a opening just below the coaxial hole 42a.
When the female connector housing 10 is inserted from the opening on the lower side of 0 and the female connector housing 10 is inserted from the opening on the upper side of the bracket 30, the respective cam pins 52 and 51 are automatically inserted into the cam grooves 54 and 53 through the introduction ports 54a and 53a. When the lever 40 is rotated around the shaft hole 42a, the cam pins 52 and 51 are pulled toward the coaxial hole 42a by the inner peripheral surfaces of the spiral cam grooves 54 and 53. Therefore, the male side connector housing 20 and the female side connector housing 10 are also attracted and united with each other.

In this embodiment, the cam grooves 53 and 54 are formed on the lever 40 side to form the female connector housing 1.
0 and the male connector housing 20 with cam pins 51, 5
2, the female connector housing 10 and the male connector housing 2 are formed by rotating the lever 40.
Any cam mechanism may be used so long as it draws 0 toward each other, and the cam groove may be formed on any side and the cam pin may be formed on any side. Of course, other than the cam mechanism formed by the cam groove and the cam pin, the arm and the crank may be used to perform the same function. Further, not only the single lever 40, but also separate lever pieces that engage with each other and drive each other may be provided to draw the female connector housing 10 and the male connector housing 20 together.

In the present embodiment, the cam groove 53
Has a uniform width, it draws the cam pin 51 or pushes it away as the lever 40 rotates. However, the cam groove 54 has a circular arc on the inner peripheral surface side and a spiral shape on the outer peripheral surface side.
The cam pins 52 are only pulled together as they rotate, and are not pushed apart. This is because the male connector housing 20 is fixed to the bracket 30 and the lock portion 31 and the engaging projection 22 are damaged if they are forcedly pushed apart. Therefore, when the male connector housing 20 is not fixed to the bracket 30, the cam groove 54 may have the same width as the cam groove 53.

Next, the operation of this embodiment having the above configuration will be described. Terminals (not shown) are attached to the male connector housing 20 and the female connector housing 10 with electric wires to form a harness, which is arranged at a predetermined position. At this time,
Since both connector housings 10 and 20 are not mounted, the handling is good. Both connector housings 1
The bracket 30 to which the lever 40 is attached is prepared at the combined position of 0 and 20, and the male connector housing 20 is attached to the bracket 30. As described above, when the male connector housing 20 is inserted from one side of the bracket 30, the engaging convex portion 22 and the lock portion 31 irremovably combine the two. At this time,
The cam pin 52 of the male connector housing 20 enters the cam groove 54 through the introduction port 54a that opens downward at the cam-shaped bulge 42b of the lever 40.

After that, when the female connector housing 10 is faced from the upper side of the bracket 30 and inserted into the hood portion 21 of the male connector housing 20, the cam pin 51 on the outer surface is formed into the cam shape of the lever 40. Bulge 42b
And enters into the introduction port 53a that opens upward. The positional relationship between the female connector housing 10 and the bracket 30 in this state is shown in FIG. When the lever 40 is rotated, as described above, the spiral cam groove 5 is formed.
3, the cam pin 51 is pulled in toward the shaft hole 42a side, and as shown in FIG.
The device itself is pulled into the hood portion 21 of the male connector housing 20 and the two are united.

When the male connector housing 20 is inserted into the bracket 30 up to a predetermined position, the cam pin 52 is already in contact with the arcuate inner peripheral surface of the cam groove 54 as described above, and therefore the lever is used. Even if 40 is rotated, it is not particularly attracted. However, even if it is intended to be firmly attached, the male connector housing 20
May not be inserted into a predetermined position with respect to the bracket 30, or the male connector housing 20 may be originally started without being pushed into a predetermined position in the bracket 30. That is, this is a case where the bracket 30 and the male connector housing 20 have a positional relationship as shown in FIG. In such a case, as the lever 40 rotates, the inner peripheral surface on the outer side of the cam groove 54 abuts on the cam pin 52 and is drawn toward the shaft hole 42a. Therefore, the lever 40 is in the semi-mounted state
And the female connector housing 10 are engaged with each other and pulled inward so that they are united with each other. That is, the lever 40 is always required to be attached to both connector housings 20,10.
It is not necessary to engage with each other as long as they can be attracted to each other to ensure the fitting. On the other hand, in the conventional case, the male connector housing 20 is fixed to the bracket 30, and is engaged only with the female connector housing 10 so that the male connector housing 20 is pulled in a semi-fixed state. If so, it becomes impossible to surely fit them.

After that, the bracket 30 is attached and fixed to the vehicle body. In this way, when the female connector housing 10 and the male connector housing 20 that are united with each other are faced from both sides of the frame-shaped bracket 30, and the lever 40 rotatably supported by the bracket 30 is rotated,
Since the cam pin 51 formed on the female connector housing 10 and the cam pin 52 formed on the male connector housing 20 engage with the cam grooves 53 and 54 formed on the lever 40 and are attracted to each other, they are united. While the lever can be removed from the connector housing to make it compact, the lever can be used for fitting at a joining place with a small force. Particularly, since the lever 40 is adapted to engage with both connector housings 10 and 20, it is possible to surely combine them.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a lever-type connector according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a lever-type connector in a mating start state.

FIG. 3 is a sectional view of a lever-type connector in a completely fitted state.

[Explanation of symbols]

 10 ... Female side connector housing 20 ... Male side connector housing 30 ... Bracket 32 ... Shaft support pin 40 ... Lever 42 ... Arm part 42a ... Shaft hole 42b ... Cam-shaped swelling part 43 ... Base part 50 ... Cam mechanism 51, 52 ... Cam pin 53, 54 ... Cam grooves

Claims (2)

[Claims] 1. A frame-shaped bracket, a lever piece rotatably supported with respect to the bracket, a connector housing which is engageable with each other and is inserted from both sides of the frame-shaped bracket, and the rotation. And a cam mechanism that engages the lever pieces and the two connector housings with each other and pulls the two connector housings toward each other by a turning operation of the lever pieces so as to be fitted and connected to each other. 2. The lever type connector according to claim 1, wherein the lever piece is attached to an inner peripheral surface of the bracket having a frame shape.