JP2583980Y2 - connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a connector having multi-pole contacts for connecting a detachable device such as a video camera and a television receiver adapter.

[0002]

2. Description of the Related Art When a video or audio recorded in a video camera is reproduced by a television receiver, a connector plug (not shown) connected to one end of a cable is conventionally inserted into a connector socket provided in the video camera. The video camera and the television receiver have been connected by inserting and connecting the connected connector plug connected to the other end of the cable to a connector socket provided in the television receiver.

[0003] As described above, in a connection in which a connector plug of a cable is inserted into a connector socket, when recording or reproducing video or audio with a video camera, the connector plug is subjected to a force higher than the connection holding force between the connectors. From the connector socket, insert it,
Since a plurality of connector plugs must be connected without fail, there is a problem that the connection between devices is troublesome.

To solve such a problem, FIG.
As shown in FIG. 0, by engaging the video camera 10 with the adapter 12, the video camera 10 is pressed against the first connector 14 provided on one side and the second connector 15 provided on the other side, and both are electrically connected. It is convenient if there is one that connects to the television receiver 11 via the cable 13 and furthermore.

[0005] More specifically, in FIGS. 11 to 13, a first connector 14 provided with a number of connector terminals 16 is attached to the lower surface of the video camera 10. The second connector 15 is provided on the upper surface of the adapter 12 so as to be able to move forward and backward.
Is provided. When the video camera 10 is engaged on the adapter 12, a number of cantilever-type contacts 17a, 17b
Is raised, and the cantilever contacts 17a and 17b are pressed against the connector terminals 16 to be electrically connected.

[0006]

In such a structure, the cantilever type contacts 17a and 17b are generally connected to the contact terminals 16a of the first connector 14 by the mechanical up and down operation of the second connector 15. To come and go,
Therefore, the mechanism for vertically moving the second connector 15 takes up a large space in the adapter 12, and the overall shape of the adapter 12 becomes large. In addition, the video camera 10 is connected to the adapter 1
When the contacts 17a and 17b are pressed into contact with the connector terminals 16 and electrically connected to the connector terminals 16 in conjunction with the engagement operation, and the eject button is pressed, the The mechanism is such that the connector 15 is pushed down to the inside to release the connection, which not only complicates the structure extremely, but also has a problem that a complicated structure may cause a failure due to long-term use.

According to the present invention, the cantilever type contacts 17 of the connector 15 are securely brought into contact with and separated from the connector terminals 16 arranged in large numbers by a light and smooth engaging operation force of the connected device. It is an object of the present invention to provide a product that has become possible.

[0008]

According to the present invention, in a connector 15 having a plurality of cantilever-type contacts 17, the connector 15 moves to a housing 18 of the connector 15 in conjunction with disengagement by sliding with a device to be connected. A slider 40,
A coil spring 4 for returning the slider 40 to its original position
3 and a curved lever 50 for transmitting engagement and disengagement to and from the connected device to the slider 40 so that the lever 50 is inclined with respect to the moving direction of the slider 40, and is curved to advance and retreat. One end of the lever 50 has a pressing portion 53 protruding outside, and the other end is engaged with a curved lever guide groove 57 of the slider 40. Is moved against the coil spring 43 to release the cantilever-type contact 17 from the housing 18 by its own elasticity by releasing its lock, and the slider 40 is returned by the coil spring 43 when the connected device escapes. To allow the one end of the lever 50 to protrude to the outside, and to make the cantilever type contact 17 sunk from the housing 18 against its elasticity. After being cut obliquely from a side of the housing 18, bent at a predetermined radius of curvature, in the inner part,
The lever 50 is a connector formed so as to be substantially in the moving direction of the slider 40 and having the same radius of curvature as the lever guide groove 57.

[0009]

When the device to be connected 14 is fitted to the connector 15 and slid toward the lever 50, the device to be connected 14
0 is in contact with the pressing portion 53. When the slider is further slid, the pressing portion 53 is pushed inward, so that the slider 40 moves against the coil spring 43. And slider 4
When 0 reaches a predetermined position, the cantilever type contact 17
a, 17b are contact protrusion holes 21a by their own elasticity,
The contact portion 25 is made to protrude from the contact 21b to come into contact with the connector terminal 16. When further sliding, the pressing portion 53 is completely pushed into the housing 18 and stops. Further, since the tip portions of the cantilever type contacts 17a and 17b are slightly apart from the first pressing groove 41 and the second pressing groove 42 of the slider 40, the cantilever type contacts 17a and 17b generate the designed contact pressure. And firmly connected to the connector terminal 16. In this way, the moving distance 14 of the lever 50, that is, the slider 40, becomes approximately half the distance of the connected device 14. This means that the slider 40
Will operate with a light and smooth operation force.

[0010]

1 to 9 show a first embodiment of the present invention.
It will be described based on. FIG. 9A shows a state in which the first connector 14 as a connected device is attached to the bottom plate 60 of an electric device such as the video camera 10 and turned over, and FIG.
Indicates an upward state in which the second connector 15 is attached to the upper surface of the adapter 12. The bottom plate 60 is provided with an engagement recess 61 which is notched in a rectangular shape with a width d1 with one end opened, and an inner tapered surface 62 is formed on both sides of the opening end of the engagement recess 61. This engagement recess 6
1, the first connector 14 is provided. The first connector 14 has a connector terminal 16
Are arranged in a zigzag pattern in order to ensure contact and separation with contacts having a narrow pitch, and have the largest possible area.

Reference numeral 18 denotes a housing of the second connector 15. The housing 18 has a substantially rectangular parallelepiped shape, and its width d2 is set so as to fit in the engaging recess 61.
And a flange 55 is integrally formed on the outer periphery. The height up to the flange 55 is
It is assumed to be substantially the same as the depth of 1. On the upper surface of the housing 18, the same staggered arrangement as that of the connector terminals 16 is provided.
Contact protruding holes 21a and 21b are formed, and insulator engaging grooves 56 are formed in both side walls of the housing 18 as shown in FIG. A lever guide groove 57 is provided to penetrate the portion, and a slider guide rail 58 is provided at the center of the lower surface of the top plate.

Inside the housing 18 is housed one in which cantilever-type contacts 17a, 17b are alternately attached at a predetermined pitch by a mold or the like by an insulator 30 as shown in FIGS. . This insulator 3
Reference numeral 0 denotes a comb shape in which grooves 31 and protrusions 32 are alternately formed, and is molded so that the cantilever-type contacts 17a and 17b are arranged at a predetermined pitch, for example, a pitch of 0.9 mm. That is, the cantilever type contact 17
Reference numerals a and 17b denote a contact portion 25 having a downward U-shaped tip, an L-shaped connection portion 26 at a proximal end, and a horizontal portion 27 at the center.

Then, a long cantilever type contact 17a and a short cantilever type contact 17b of the horizontal portion 27 are prepared. The long cantilever type contact 17a of the horizontal portion 27 is molded so as to protrude from the protrusion 32, and the short cantilever type contact 17 of the horizontal portion 27 is formed.
b is molded so as to protrude from the groove 31. At this time, the short cantilever type contact 17b of the horizontal portion 27
The distance P3 from the groove 31 to the contact portion 25 is substantially the same as the distance P4 from the protrusion 32 to the contact portion 25 in the long cantilever contact 17a of the horizontal portion 27. The length L1 of the projection 32 is substantially the same as the distance L2 between the staggered connector terminals 16. The connecting portions 26 protruding from the other end of the insulator 30 are also alternately bent in a staggered manner so as to match the intervals of the staggered wiring patterns 23.

6 to 8, reference numeral 40 denotes a slider which is movably fitted to the housing 18. The slider 40 has a second pressing groove 42 formed at the same pitch as the contact projecting holes 21b. Further, the first pressing groove portions 41 are formed between the second pressing groove portions 42 at the same pitch as the pitch of the contact protrusion holes 21a, and the whole shape is a comb shape. The first pressing groove 41
, The tip of the long cantilever type contact 17a contacts, and the tip of the short cantilever type contact 17b contacts the second pressing groove 42. Note that when the cantilever type contact 17b comes into contact with the second pressing groove 42, it does not come off.
Are provided integrally.

At the other end of the slider 40, two spring receiving recesses 44 are provided.
Are fitted. Further, lever contact wall portions 45 are provided on both side portions of the spring accommodating concave portion 44, and a gap between the spring accommodating concave portions 44 is a guide groove 46 fitted with the slider guide rail 58. ing. On the side of the lever contact wall 45, a long engagement hole 47 extending in the lateral direction is vertically penetrated, and a lever 50 is engaged with each.

As shown in FIG. 6B, the lever 50 is curved with a predetermined radius of curvature so that the lever 50 can be advanced and retracted while being fitted into the curved lever guide groove 57. At the other end, a column 51 is formed, and an oval locking projection 52 that is loosely fitted in the long engagement hole 47 is integrally provided at the lower end of the column 51.

Next, the order of assembly will be described. First, the coil spring 43 is fitted into the spring accommodating concave portion 44 of the slider 40, and the lever 50 is fitted into the long engagement hole 47 with the lever 50 substantially in the horizontal direction. When the lever 50 is fitted in the engagement long hole 47 and then rotated at the column portion 51 so as to be vertically oriented, the locking projection 52 is locked in the engagement long hole 47 and does not come out. .

The housing 18 is turned upside down and the slider 4
0 is fitted so that the coil spring 43 is in contact with the inner wall of the distal end. At this time, while the lever 50 is directed downward and the pressing portion 53 of the lever 50 is in contact with the inner wall of the housing 18, the housing 18 is opposed to the coil spring 43.
Press further into. Even when the lever 50 is turned downward, it is locked by the locking projection 52 so that the lever 50 does not fall down, facilitating the assembling work.

When the lever 50 is further pushed in against the coil spring 43, the guide groove 46 and the slider guide rail 58 are fitted, and the lever 50 is fitted at the position of the lever guide groove 57, so that the pressing portion 53 of the lever 50 is pressed. Is the housing 1
8 is settled down with a part protruding from the side wall.

Next, the insulator 30 in which the cantilever-type contacts 17a of the long horizontal portion 27 and the cantilever-type contacts 17b of the short horizontal portion 27 are alternately attached by molding or the like is attached to the insulator 18 of the housing 18. The engagement groove 56 is fitted. Here, the cantilever type contacts 17a and 17
b indicates that the slider 40 projects from the contact projecting holes 21a and 21b as indicated by a chain line in FIGS.

However, when the slider 40 is
8, long cantilever type contact 17
The leading end of a is fitted in the first pressing groove 41, and the leading end of the short cantilever contact 17b is fitted in the second pressing groove 42, and the insulator 30 does not adhere to the top plate of the housing 18. The tip side is in a floating state. When the housing 18 is covered with the cover 28 while the contacts 17 are being pushed in this state, the cantilever type contacts 17a, 1a
7b, the horizontal portion 27 and the portion of the horizontal portion 27 are slightly curved. For this reason, the contact portions 25, 25 respectively face the contact projecting holes 21a, 21b arranged in a staggered manner, but do not project outside. The connection portions 26 at the base end of the cantilever type contact 17 protrude from the cover 28 and are inserted into the printed wiring board 22 so that the wiring pattern 2
3 and 23 are connected by solder 24. The connector 15 assembled in this manner is attached to the adapter 12 side.

Next, the operation when the video camera 10 is engaged and connected to the adapter 12 will be described. Video camera 10
With the bottom plate 60 facing downward, it is fitted into a part of the housing 18 from the opening side of the engaging recess 61 from above. In this state, the video camera 10 is slid toward the lever 50 of the housing 18. Then, first, the tip of the inner tapered surface 62 reaches the position of X in FIGS. 1A and 1B and FIG. 2 and contacts the pressing portion 53 of the lever 50.

When the video camera 10 is further slid, the pressing portion 53 is pushed inward by the inner tapered surface 62, so that the cylindrical portion 51 of the lever 50 contacts the lever contact wall portion 45 and the engagement elongated hole 47. The slider 40 moves against the coil spring 43. At this time, since the lever guide groove 57 is cut obliquely from the side surface of the housing 18 and then bends at a predetermined radius of curvature, the inner portion is formed so as to be substantially in the moving direction of the slider 40. The lever 50 moves so as to be pushed into the housing 18. When the slider 40 reaches the position Y, the cantilever type contacts 17a and 17b project the contact portions 25 from the contact projecting holes 21a and 21b by their own elasticity, and the corresponding connector terminals 1 of the first connector 14
Touch 6.

When the video camera 10 is further slid, the pressing portion 53 is completely pushed into the housing 18 via the lever guide groove 57, reaches the position Z, and comes into contact with the inner wall portion of the engaging concave portion 61. The lever 50 is a coil spring 4
3, a force is applied to expand in the lateral direction, and
Since the contact portion of the pressing portion 53 is the inner wall portion of the engagement concave portion 61, the video camera 10 is stably engaged with the adapter 12. In addition, the cantilever type contact 17
Since the tip portions of the a and 17b are slightly separated from the first pressing groove 41 and the second pressing groove 42 of the slider 40, the cantilever type contacts 17a and 17b have the designed contact pressure and the contact portion 25 It is securely connected to the connector terminal 16. As described above, the moving distance S2 of the lever 50, that is, the slider 40, is about half of the distance S1 from the X position to the Z position of the first connector 14.
This means that the slider 40 operates with a light and smooth operating force.

At this time, the distance P3 from the groove 31 to the contact portion 25 in the short cantilever type contact 17b of the horizontal portion 27 and the long cantilever type contact 1 of the horizontal portion 27
Distance P4 from protrusion 32 to contact portion 25 in 7a
Are substantially the same, even if the lengths of the cantilever type contacts 17a, 17b are different, the connector terminals 16, 1
6 are connected with the same contact pressure. In addition, they are not entangled with each other and short-circuited or deformed.

When the video camera 10 is detached, when the video camera 10 is slid in the opposite direction to the above, the pressing of the lever 50 by the engaging concave portion 61 is released.
Gradually comes out to the outside. Returning to the position of Y, the tips of the cantilever type contacts 17a and 17b are
When the contact between the first and second pressing grooves 42 starts and the slider 40 attempts to return to the position X, the cantilever-type contacts 17a and 17b are bent by the slider 40 having a stronger elastic force than these, and the external The contact portion 25 protruding from the camera is retracted into the contact protruding holes 21a and 21b, returns to the original state, and the video camera 10
Get off.

In the above embodiment, the case where the connector terminals 16 of the first connector 14 are staggered in two rows has been described as an example.
However, the present invention is not limited to this, and three rows or more rows may be used.
1 and the length of the projection 32 are also two steps, three in accordance with the number of rows.
Form with steps.

[0028]

(1) As described above, since the lever 40 and the lever guide groove 57 are formed with a predetermined radius of curvature from the side surface of the housing 18, the lever 50 is
By moving so as to be pushed into the housing 18, the moving distance of the lever 50, that is, the slider 40, becomes approximately half the distance of the connected device 14. Therefore, the slider 40 can operate with a light and smooth operation force. (2) Since the moving distance of the slider 40 can be made sufficiently smaller than the moving distance of the device 14 to be connected, the shape of the other connector 15 can be changed to the conventional cantilever type contact 17.
It is possible to reduce the size of a and 17b to a fraction of the size as compared with those in which the connector 15 is moved up and down to the contact terminal 16 by the vertical movement of the connector 15.

(3) Since the slider 40 is moved such that the pressing portion 53 is pushed inward by the connected device 14, the movement of the slider 40 is extremely smooth. (4) Connector 1 with cantilever type contact 17
The cantilever type contact 17 can be moved forward and backward by simply fitting the device to be connected 14 into the connector 15, and can be reliably brought into contact with and separated from the connector terminal 16 without moving the device 5 by a complicated mechanism. (5) When the connected device 14 is engaged with the connector 15, the tip portions of the cantilever-type contacts 17 a and 17 b are connected to the first pressing groove 41 and the second pressing groove 4 of the slider 40.
2 slightly away from the cantilever type contact 17a,
17b is a connector terminal 1 having a contact pressure as designed.
6 is connected.

[Brief description of the drawings]

1A and 1B show one embodiment of a connector according to the present invention, wherein FIG. 1A is a sectional view of a short cantilever type contact 17b, and FIG. 1B is a sectional view of a long cantilever type contact 17a. .

FIG. 2 is a bottom view of the housing 18 with a cover 28 removed.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a side view of the cantilever type contact 17;

FIG. 5 is a plan view of FIG. 4;

6A and 6B show a slider 40, wherein FIG. 6A is a perspective view of an assembled state, and FIG. 6B is a perspective view of a lever 50.

FIG. 7 is a plan view of the slider 40.

8A and 8B show a slider 40, wherein FIG. 8A is a sectional view taken along line BB in FIG. 7, FIG. 8B is a sectional view taken along line CC in FIG. 7, and FIG. It is sectional drawing.

9A and 9B show a first connector 14 and a second connector 15, wherein FIG. 9A is a bottom perspective view of the video camera 10,
FIG. 2B is a top perspective view of the adapter 12.

FIG. 10 shows a video camera 10 and a television receiver 11
FIG. 4 is an explanatory diagram in a case where the connection is made by an adapter 12.

FIG. 11 is a sectional view of a main part of FIG. 11;

12 (a) is a sectional view and FIG. 12 (b) is a plan view for explaining the connector 14. FIG.

FIG. 13 illustrates the printed wiring board 22;
(A) is a sectional view, and (b) is a plan view.

[Explanation of symbols]

10 video camera, 11 television receiver, 12
... Adapter, 13 ... Cable, 14 ... First connector,
15: second connector, 16: connector terminal, 17, 1
7a, 17b: cantilever type contact, 18: housing, 20: pressing spring, 21: contact projecting hole, 22:
Printed wiring board, 23: wiring pattern, 24: solder, 2
5 contact part, 26 connection part, 27 horizontal part, 28 cover, 30 insulator, 31 groove part, 32 projection part, 40 part
Slider, 41: first pressing groove, 42: second pressing groove,
43: Coil spring, 44: Spring storage concave part, 45: Lever contact wall part, 46: Guide groove, 47: Engagement long hole, 48: Detachment prevention wall part, 50: Lever, 51: Column part, 52: Engagement Stop projections, 53 pressing parts, 55 flange parts, 56 insulator engagement grooves, 57 lever guide grooves, 58 slider guide rails, 60 bottom plate, 61 engagement recesses, 62 inner tapered surface.

Claims (2)

(57) [Scope of request for utility model registration] In a connector having a plurality of cantilevered contacts, a slider is provided on a housing of the connector so as to move in conjunction with engagement and disengagement by sliding with a device to be connected. A coil spring 43 for returning to the original position; and a curved lever 50 for transmitting engagement and disengagement with the connected device to the slider 40. The lever 50 is inclined with respect to the moving direction of the slider 40, and In order to bend and advance and retreat, the pressing portion 53 at one end of the lever 50 protrudes outside, and the other end is engaged with the curved lever guide groove 57 of the slider 40, and when engaged with the connected device, The slider 40 is moved via the lever 50 against the coil spring 43 to release the cantilever-type contact 17 from the housing 18 by its own elasticity by releasing its lock. When the connected device escapes, the coil spring 43 returns the slider 40 to its original position so that one end of the lever 50 protrudes to the outside.
A connector characterized by being submerged from the connector. 2. The lever guide groove 57 is provided in the housing 18
After being cut obliquely from the side surface of the slider 40, it is curved at a predetermined radius of curvature, and is formed so as to be substantially in the moving direction of the slider 40 at the inner portion. The lever 50 has the same curvature as the lever guide groove 57. 2. The connector according to claim 1, wherein the connector has a radius.