JPH0650952Y2 - Swivel connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used for devices in which a specific wiring board and another wiring board electrically connected thereto are relatively rotated. The present invention relates to a rotary connector.

[Prior Art] LC like laptop PCs and similar word processors
In devices in which the D side wiring board is rotated with respect to the set body side wiring board and similar devices, conventionally, circuits of two types of wiring boards that are relatively rotated can be used. A flexible lead wire is used for connection, and the flexibility of the lead wire is used to absorb the rotation of two types of wiring boards.

[Problems to be solved by the invention] The wiring boards in the above-mentioned types of devices are set body side or LC.
In addition to being placed in a narrow internal space of D, conventionally, after assembling the set main body and the LCD, it is necessary to connect both ends of the lead wire of necessary and sufficient length to the corresponding wiring boards through connectors. There were many

In this way, the work of connecting the lead wires to each wiring board of the device in which the set body and the LCD are assembled is not only required to be performed using an extremely small space, but also the work is hindered. Since it is unavoidable to perform the operation under the condition that many obstacles exist, it is difficult to automate the connection work, and in the past, most of the time, manual work was relied on.

However, even if it is done manually, it is difficult to perform work such as connecting the lead wire side connector to the connector mounted on each wiring board while looking at it from the outside, and it is extremely inefficient. Was forced to.

The present invention has been made in view of the above circumstances. That is, the present invention makes it possible to connect a sufficiently long flexible conductor piece before assembling the set body and the LCD, and the conductor piece is predetermined at the same time when the set body and the LCD are assembled. LCD that is assembled into the set body while allowing it to be housed neatly in the space of
An object of the present invention is to provide a rotary connector that can follow the rotation of an LCD without difficulty when the LCD rotates.

[Means for Solving the Problems] A rotary connector according to the present invention comprises a main body having a boss,
A sub-body having a recessed hole and a guide hole communicating with the recessed hole and guiding the boss to the recessed hole, a first frame body attached to the main body at one end, and a sub-body at the other end are provided. A flexible long conductor piece provided with a second frame body attached to the body, and when the boss guided to the recessed hole through the guide hole is fitted into the recessed hole, The sub-body is connected to the sub-body such that the sub-body is relatively rotatable about the fitting portion, and the boss in the fitting portion is configured to maintain a certain relative rattling with respect to the recessed hole. It has a space that allows the bending of the middle portion of the conductor piece.

[Operation] According to this configuration, one end and the other end of the long conductor piece can be connected to the set body side wiring board and the LCD side wiring board before the set body and the LCD are assembled. it can. If the main body to which the first frame is attached is attached to the LCD and the sub body to which the second frame is attached is separately attached to the set main body, the main body is simultaneously attached when the set main body and the LCD are assembled. The main body and the sub body are rotatably connected by fitting the boss of the body into the recessed hole through the guide hole of the sub body.

Furthermore, since the boss of the main body and the recessed hole of the sub body are loosely fitted while maintaining a certain amount of rattling, the relative rotation center formed by the fitting portion of the body and the recessed hole and equipment Even if there is a misalignment with the LCD rotation center set on the side, if the misalignment is within the range that can be absorbed by the relative rattling described above, the sub body can rotate the LCD. Follow up comfortably.

[Embodiment] Fig. 1 is an exploded perspective view of a rotary connector according to an embodiment of the present invention, Fig. 2 is a perspective view of the connector, Fig. 3 is a front view of the connector, and Figs. 4A and 4B. FIG. 3 is an enlarged vertical sectional view of the connector.

This connector is a synthetic resin main body 1 which is an insulating material.
And a sub-body 3 and a long conductor piece 5.

The main body 1 has a space 14 which is surrounded by a front plate 11, a rear plate 12 and left and right side plates 13, 13 and which extends substantially upward.
Protrusions 15 and 16 provided near the lower short side of 12
A fitting hole 17 into which a first frame 51 described later is inserted is formed in the upper part of the above, while a socket insertion hole 18 is formed in the lower part of the projecting portions 15 and 16. Brackets 19 and 19 are set up on the left and right of the upper part of the main body 1.
Circular bosses 20 and 20 project horizontally inward from 9 and 19.

The sub body 3 is a convex curved surface having a relatively large radius of curvature.
A large number of ribs 32 are formed on the 31 at a constant pitch, and long holes are formed on the brackets 33 formed at the left and right ends, respectively.
34 is provided, and the elongated guide hole 35 communicates with the elongated hole 34. There is a step at the boundary 34a between the long hole 34 and the guide hole 35, and the long hole 34 is deeper than the guide hole 35 through the step.

The conductor piece 5 is provided with a first frame body 51 at one end, a second frame body 61 and a third frame body 71 at the other end, and a fourth frame body 81 at an intermediate portion. First
As shown in FIGS. 4A and 4B, the first frame body 51 includes a base portion 52 inserted into the fitting hole 17 of the main body 1 and a protrusion portion 15 or 16 of the main body 1 protruding from the base portion 52. It has a plate-like protruding piece portion 53 that is inserted between them. Also, FIGS. 1 and 2
As shown in the drawing, the second frame 61 has engaging pieces 62 at the left and right ends, respectively, and the holes 63 of the engaging pieces 62 are engaged with the engaging protrusions 36 on the sub body 3 side. As a result, the second frame 61 is attached to the lateral end surface of the sub body 3. The third frame body 71 has engaging pieces 72 at left and right ends, respectively, and the hole portions 73 of the engaging pieces 72 are engaged with the engaging protrusions 37 on the side of the sub body 3 to allow the third frame body 71 to move. Is attached to the upward end surface of the sub body 3. The frame bodies required to attach the conductor piece 5 to the main body 1 and the sub body 3 are the first frame body 51 and the second frame body 61, and the third frame body 71 allows the conductor piece 5 to be attached. The other end is more securely fixed, and the fourth frame 81 serves to surely set the pitch of the intermediate portions of the large number of conductor pieces 5 to prevent mutual contact.

The rotatable connector in the illustrated example is a multi-pole connector and has a large number of conductor pieces 5. The conductor pieces 5 are held at a constant pitch by the frame bodies 51, 61, 71, 81, and one end portion 5a of each conductor piece 5 is a protruding piece portion of the first frame body 51. It is a contact piece that is held on one surface of 53 over a certain length, and the other end 5b is a terminal that protrudes from the second frame 61. Further, while the non-moving part of the conductor piece 5 located between the second frame body 61 and the third frame body 71 is bent at a substantially right angle with a small radius, The movable portion of the conductor piece 5 located between the first frame 51 and all the conductor pieces 5 ...
Is neatly housed in space 14 with a smooth curved line. The first frame body 51, the second frame body 61, the third frame body 71, and the fourth frame body 81 can be easily and inexpensively formed by synthetic resin together with the conductor pieces 5 by insert molding, but they are not always required by insert molding. Rather, the conductor pieces 5 are arranged so that they can be prevented from coming into contact with each other.
It just needs to be attached to.

Here, as shown in FIGS. 3, 4A and 4B,
The long axis direction of the long hole 34 is a direction along the wiring board 100 on the LCD side when the terminal which is the other end portion 5b of the conductor piece 5 is connected, and the boss 20 extends in the short axis direction of the long hole 34. Maintains relative rattling along the long axis. Further, as shown in FIG. 3, a gap is formed between the elongated hole 34 and the boss 20 in the axial direction of the boss 20. Therefore, the long axis direction of the long hole 34 is X.
Direction, the axial direction of the boss 20 is the Y direction, and the minor axis direction of the long hole 34 is the Z direction, the sub body 3 is in a certain range with respect to the main body 1 in the X direction, the Y direction, and the Z direction that are perpendicular to each other. You can move inside.

The relative rattling of the boss 20 in the long axis direction (X direction) and the short axis direction (Z direction) of the long hole 34 is caused by the LCD when the connector is assembled into a device. This is because there may be a case where the center of the boss 20 does not exactly coincide with the rotation fulcrum of. That is, even if the center of the boss 20 and the LCD rotation fulcrum are made to match in design, when the connector is actually incorporated, the boss 20 is rotated with respect to the LCD rotation fulcrum.
The center of the may be slightly misaligned. The rattling absorbs the misalignment in such a case, and the sub body 3
Is provided to rotate the main body 1 with respect to the main body 1 without difficulty. In other words, the rattling forms a play space when the sub body 3 rotates. Therefore, instead of the elongated hole 34, a circular hole having a size into which the body 20 can be loosely fitted or a recessed hole having another shape may be adopted.

In the rotary connector described above, when the LCD mounted on the set body (not shown) is rotated, the sub body 3 uses the fitting portion between the long hole 34 and the boss 20 as a fulcrum to provide the structure shown in FIG. If the conductor is rotated from the position to the position shown in FIG. 4B, the conductor pieces 5 flex in the space 14 into a curved shape having a large curvature in the middle of the rotation. Conversely, from the position shown in FIG.
When rotated to the position shown in the drawing, the conductor pieces 5 ... gradually expand in the space 14 and a part of the conductor pieces 5 ...
Be followed by. Therefore, even if the sub body 3 is repeatedly rotated in the forward and reverse directions, the conductor piece 5 does not locally bend and the service life is not shortened. Further, at any position during the rotation of the sub body 3, the sub body 3 can move within a certain range in the three axial directions of the X direction, the Y direction, and the Z direction. Even if there is some play, it is possible to absorb the displacement of the LCD rotation fulcrum associated with that play. Reference numerals 21 and 22 are stoppers formed on the main body 1. By changing the positions of these stoppers 21 and 22, the rotation range of the sub body 3 can be changed.

Next, 9 is a socket, which accommodates a contact piece 91 therein, and has a contact 92 formed in a folded shape at the tip of the contact piece 91. The terminal portion 93 of the contact piece 91 is connected to the wiring board 200 on the set body side. And socket 9
In the state where the socket insertion hole 18 of the main body 1 is inserted, the contact 92 makes elastic contact with the contact piece which is the one end 5a of the conductor piece 5, as shown in FIGS. 4A and 4B. The insertion allowance of the socket insertion hole 18 is adjustable, and by adjusting the size of the gap A between the illustrated socket 9 and the main body 1, the fitting portion between the elongated hole 34 and the boss 20, that is, the auxiliary portion. The position of the rotation fulcrum of the body 3 can be adjusted to the position of the rotation fulcrum of the LCD.

To install the connector shown in a laptop computer or a word processor of the same type, use the set body of those devices.
It can be done at the same time when the LCD is assembled.
That is, when performing such assembling work, the first frame body
Before connecting the main body 1 to which the conductor piece 5 is attached and the sub body 3 via the 51, the second frame 61, or the third frame 71, connect the main body 1 to the socket 9 on the set body side. The conductor piece 5 to the circuit of the set main body side wiring board 200 via the contact piece 91, and the other end 5b of the conductor piece 5 is connected to the LCD side wiring board 100.
Connect to the circuit. After that, when the LCD is assembled to the set body, the main body 1 and the sub body 3 are rotatably connected by guiding the body 20 to the elongated hole 34 by the guide hole 35 and fitting them together. In this way, the work is an orderly work, and is a work familiar with automation. The socket 9 is not essential, and the socket 9 may be omitted and the one end 5a of the conductor piece 5 may be directly connected to the set main body side wiring board 200.

[Advantage of Invention] In the rotary connector of the present invention, since the guide hole for guiding the boss of the main body to the recessed hole of the sub body is connected to the recessed hole of the sub body, the main body can be used as the main body of the set and the sub body. After attaching each to the LCD, the main body and the sub body can be rotatably connected at the same time when the set body and the LCD are assembled, and the main body and the sub body have the first frame body and the second frame body. Since a long conductor piece can be attached via the frame body, it is possible to connect the set body side wiring board and the LCD side wiring board before being assembled to each other with the conductor piece. This has the effect of facilitating automation of the work of connecting the wiring boards, which has been considered difficult in the past, and at the same time, facilitating automation of the work of connecting the main body and the sub body. In the state where the main body and the sub body are connected, the long conductor piece is housed in the space in an orderly manner with the middle portion thereof bent, and when the sub body rotates, the conductor piece is deformed in the space without difficulty. This is advantageous in that the useful life of the conductor piece is extended because it becomes easier.

Further, since the main body and the sub body are rotatably connected to each other through the loosely fitted boss and the recessed hole, the rotation center of the sub body and the LCD generated within the range of rattling of the sub body. Even if a misalignment occurs with the center of rotation, there is an effect that the misalignment described above is reasonably absorbed when the LCD is rotated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a rotary connector according to an embodiment of the present invention, FIG. 2 is a perspective view of the connector, FIG. 3 is a front view of the connector, and FIG. FIG. 4B is an enlarged vertical sectional view of the connector. 1 ... Main body, 3 ... Sub body, 5 ... Conductor piece, 14 ...
... Space, 20 ... Boss, 34 ... Slot (recessed hole), 35 ... Guide hole, 51 ... First frame, 61 ... Second frame.

Claims (1)

[Scope of utility model registration request] 1. A sub-body having a main body having a boss, a recessed hole and a guide hole communicating with the recessed hole and guiding the boss to the recessed hole, and a sub-body attached at one end to the main body. A long conductor piece having one frame body and a second frame body attached to the sub body at the other end, and the boss guided to the recessed hole through the guide hole is recessed. The main body and the sub body are connected so as to be rotatable relative to each other about the fitting portion in a state of being fitted in the insertion hole, and the boss in the fitting portion is fixed relative to the concave insertion hole. A pivotable connector, characterized in that it has a structure for keeping rattling and further has a space for allowing the middle part of the conductor piece to bend.