Patent Description:
The present invention also relates to a connector having the sheet type conductive member.

In recent years, attention has been drawn to so-called smart clothes that can obtain user's biological data such as the heart rate and the body temperature only by being worn by the user. Such a smart cloth has an electrode disposed at a measurement site, and when a wearable device serving as a measurement device is electrically connected to the electrode, biological data can be transmitted to the wearable device.

The electrode and the wearable device can be interconnected by, for instance, use of a connector connected to a flexible conductor drawn from the electrode.

As a structure in which a contact of a connector is connected to a flexible conductor, for instance, <CIT> discloses a connecting structure shown in <FIG>. A contact <NUM> is disposed on a front surface 1A of a flexible substrate <NUM>, and a linking conductive member <NUM> having been pushed from a rear surface 1B side toward a front surface 1A side of the flexible substrate <NUM> is inserted into a recessed portion 2A of the contact <NUM>. When the linking conductive member <NUM> is inserted into the recessed portion 2A of the contact <NUM>, a cut edge 1C of the flexible substrate <NUM> is caught and sandwiched between an inner surface of the recessed portion 2A of the contact <NUM> and the linking conductive member <NUM>.

Consequently, the front surface 1A of the flexible substrate <NUM> comes into contact with the inner surface of the recessed portion 2A of the contact <NUM>, while the rear surface 1B of the flexible substrate <NUM> comes into contact with the linking conductive member <NUM>. In addition, a contact portion 3A of the linking conductive member <NUM> contacts the inner surface of the recessed portion 2A at the innermost part of the recessed portion 2A of the contact <NUM>.

Therefore, when a flexible conductor is exposed on the front surface 1A of the flexible substrate <NUM>, the flexible conductor is directly connected to the contact <NUM>; when the flexible conductor is exposed on the rear surface 1B of the flexible substrate <NUM>, the flexible conductor is electrically connected to the contact <NUM> via the linking conductive member <NUM>. In addition, when flexible conductors are separately exposed on the opposing surfaces, i.e., the front surface 1A and the rear surface 1B of the flexible substrate <NUM>, both the flexible conductors can be connected to a single contact <NUM>.

Thus, the flexible conductor exposed on the front surface 1A of the flexible substrate <NUM> comes into direct contact with and is electrically connected to the contact <NUM>, but in the case of the flexible conductor exposed on the rear surface 1B of the flexible substrate <NUM>, the flexible conductor is connected to the contact <NUM> via the linking conductive member <NUM> disposed between the flexible conductor and the contact <NUM>, so the number of contact points on a conductive path from the flexible conductor exposed on the rear surface 1B of the flexible substrate <NUM> to the contact <NUM> increases.

Further, since the dedicated linking conductive member <NUM> is used, the number of components also increases.

<CIT> describes a connector to be mounted on a flexible substrate.

<CIT> describes a connecting method for connecting connection terminal to an end of a flexible substrate and furthermore describes a connecting structure and a connection terminal.

<CIT> describes a connection method capable of electrically connecting a connection terminal arranged on the surface of a flexible substrate to a conductive part exposed on the rear surface of the flexible substrate.

The present invention has been made to overcome the conventional problem as above and aims at providing a sheet type conductive member that can electrically connect a first flexible conductor and a second flexible conductor respectively disposed on a front surface side and a rear surface side of a sheet body to a single contact without using a dedicated linking conductive member.

The present invention is also aimed at providing a connector having such a sheet type conductive member.

A sheet type conductive member according to the present invention is one that extends along a predetermined plane and is attached to a connector, the sheet type conductive member comprising:.

A connector according to the present invention comprises:.

<FIG> shows a connector <NUM> according to Embodiment <NUM>. The connector <NUM> is used as, for example, a garment-side connector for fitting a wearable device, and has a housing <NUM> made of an insulating material. In the housing <NUM>, four contacts <NUM> are retained, and a reinforcement sheet <NUM> and a sheet type conductive member <NUM> are retained by the housing <NUM> while being superposed on each other.

The four contacts <NUM> are disposed to project perpendicularly to the sheet type conductive member <NUM> in two lines parallel to each other.

For convenience, the reinforcement sheet <NUM> and the sheet type conductive member <NUM> are defined as extending along an XY plane, the direction in which the four contacts <NUM> are aligned is referred to as "Y direction," and the direction in which the four contacts <NUM> project is referred to as "+Z direction. " The Z direction is a fitting direction in which the connector <NUM> is fitted to a counter connector.

<FIG> is an exploded perspective view of the connector <NUM>. The connector <NUM> includes a bottom insulator <NUM> and a top insulator <NUM>, and these bottom and top insulators <NUM> and <NUM> constitute the housing <NUM>.

The top insulator <NUM> includes a recessed portion 17A opening in the +Z direction, and four contact through-holes 17B formed within the recessed portion 17A. The recessed portion 17A constitutes a counter connector accommodating portion in which part of a counter connector (not shown) is to be accommodated, and the four contact through-holes 17B separately correspond to the four contacts <NUM>. In addition, on a surface, facing in the -Z direction, of the top insulator <NUM>, a plurality of bosses 17C are formed to project in the -Z direction.

The reinforcement sheet <NUM> is provided to reinforce a mounting object such as a garment (not shown) on which the connector <NUM> is to be mounted, is made of an insulating material, and has an opening portion 14A formed in the center thereof. Further, a plurality of cutouts 14B separately corresponding to the plurality of bosses 17C of the top insulator <NUM> are formed along the periphery of the opening portion 14A of the reinforcement sheet <NUM>.

The four contacts <NUM> are plug-type contacts each made of a conductive material such as metal, and are to be connected to corresponding contacts of a counter connector (not shown) when part of the counter connector is accommodated in the recessed portion 17A of the top insulator <NUM>. Each of the contacts <NUM> has a tubular portion 13A of cylindrical shape extending in the Z direction, and a flange 13B extending from a -Z directional end portion of the tubular portion 13A along an XY plane.

Of the four contacts <NUM>, three contacts <NUM> are each used as a signal terminal for transmitting an electric signal, and the remaining one contact <NUM> is connected to a ground potential and used as a shield terminal.

Four contact arrangement regions 15A for separately arranging the four contacts <NUM> are laid out on a front surface, facing in the +Z direction, of the sheet type conductive member <NUM>, and a plurality of through-holes 15B separately corresponding to the plurality of bosses 17C of the top insulator <NUM> are formed at the periphery of the sheet type conductive member <NUM>.

The bottom insulator <NUM> includes a flat plate portion 16A, and on the flat plate portion 16A, four projections 16B are formed to project in the +Z direction. The four projections 16B separately correspond to the four contacts <NUM>. Further, the flat plate portion 16A is provided with a plurality of through-holes 16C separately corresponding to the plurality of bosses 17C of the top insulator <NUM>.

The four contact through-holes 17B of the top insulator <NUM>, the four contacts <NUM>, the four contact arrangement regions 15A of the sheet type conductive member <NUM>, and the four projections 16B of the bottom insulator <NUM> are arranged so as to align with each other in the Z direction.

Similarly, the bosses 17C of the top insulator <NUM>, the cutouts 14B of the reinforcement sheet <NUM>, the through-holes 15B of the sheet type conductive member <NUM>, and the through-holes 16C of the bottom insulator <NUM> are arranged so as to align with each other in the Z direction.

The contact through-holes 17B of the top insulator <NUM> have an inside diameter larger than an outside diameter of the tubular portions 13A of the contacts <NUM> and smaller than an outside diameter of the flanges 13B to allow smooth insertion of the tubular portions 13A of the contacts <NUM>.

In addition, the cutouts 14B of the reinforcement sheet <NUM>, the through-holes 15B of the sheet type conductive member <NUM>, and the through-holes 16C of the bottom insulator <NUM> each have a size slightly larger than an outside diameter of the bosses 17C of the top insulator <NUM>.

As shown in <FIG>, the sheet type conductive member <NUM> includes a sheet body 18A made of an insulating material and has a multilayer structure in which: a signal wiring layer 18B (third flexible conductor) made of a conductive material, an insulating layer 18C, a shield layer 18D (first flexible conductor) made of a conductive material, and an insulating layer 18E are sequentially laminated on a front surface, facing in the +Z direction, of the sheet body 18A; and a shield layer 18F (second flexible conductor) made of a conductive material, and an insulating layer <NUM> are sequentially laminated on a rear surface, facing in the -Z direction, of the sheet body 18A.

As shown in <FIG>, of the four contact arrangement regions 15A laid out on the front surface, facing in the +Z direction, of the sheet type conductive member <NUM>, three contact arrangement regions 15A separately form regions R1 on which the three contacts <NUM> used as signal terminals are to be arranged, and the remaining one contact arrangement region 15A forms a region R2 on which the contact <NUM> used as a shield terminal is to be arranged.

In each of the regions R1 on which the three contacts <NUM> serving as signal terminals are to be arranged, the insulating layer 18E, the shield layer 18D, and the insulating layer 18C are removed so that the signal wiring layer 18B is exposed toward the +Z direction.

On the other hand, in a +X direction-side portion of the region R2 on which the contact <NUM> serving as a shield terminal is to be arranged, the insulating layer 18E is removed so that the shield layer 18D is exposed toward the +Z direction. In addition, also in a +X direction-side portion of the sheet type conductive member <NUM>, the shield layer 18D is exposed toward the +Z direction, and is integrally connected to the shield layer 18D exposed in the region R2.

The other region on the front surface, facing in the +Z direction, of the sheet type conductive member <NUM> is covered with the insulating layer 18E.

In addition, on an outside of the contact arrangement region 15A forming the region R2, the sheet type conductive member <NUM> has a tongue portion 15C projecting in a tongue shape in the -X direction in an XY plane. A front surface, facing in the +Z direction, of the tongue portion 15C is also covered with the insulating layer 18E.

Further, in the region R2, an insertion hole 15D is formed to extend in the Y direction and penetrate from the front surface to a rear surface of the sheet type conductive member <NUM>, and at a -X directional end portion of the tongue portion 15C, an insertion portion 15E is formed to be wider in the Y direction than the insertion hole 15D.

The through-holes 15B of the sheet type conductive member <NUM> are arranged to surround the four contact arrangement regions 15A.

As shown in <FIG>, on a rear surface, facing in the -Z direction, of the tongue portion 15C, the insulating layer <NUM> is removed so that the shield layer 18F is exposed toward the -Z direction. In addition, also in the +X direction-side portion of the sheet type conductive member <NUM>, on the rear surface facing in the -Z direction, the shield layer 18F is exposed toward the -Z direction and integrally connected to the shield layer 18F exposed in the tongue portion 15C.

The other region on the rear surface, facing in the -Z direction, of the sheet type conductive member <NUM> is covered with the insulating layer <NUM>.

Here, when the tongue portion 15C projecting in the -X direction on the outside of the region R2 of the sheet type conductive member <NUM> is folded back to the front surface side of the sheet type conductive member <NUM>, as shown in <FIG>, the shield layer 18F exposed on the rear surface of the tongue portion 15C is directed in the +Z direction. In this state, as shown in <FIG>, the insertion portion 15E formed at the end portion of the tongue portion 15C is inserted into the insertion hole 15D of the sheet type conductive member <NUM> from the +Z direction side to the -Z direction side.

Since the insertion portion 15E is formed to be wider in the Y direction than the insertion hole 15D, by inserting the insertion portion 15E into the insertion hole 15D, as shown in <FIG>, the tongue portion 15C is retained while being folded back on the front surface side of the sheet type conductive member <NUM>. Consequently, in the region R2 laid out on the front surface of the sheet type conductive member <NUM>, the shield layer 18F exposed on the rear surface of the tongue portion 15C is disposed on the -X direction side of the insertion hole 15D.

That is, the shield layer 18D is exposed on the +X direction-side portion of the region R2, and the shield layer 18F is exposed on a -X direction-side portion of the region R2, so that a contact connecting portion C composed of part of the shield layer 18D and part of the shield layer 18F is formed in the region R2. In the connector <NUM>, the contact connecting portion C is disposed in the region R2 and electrically connected to the contact <NUM> used as a shield terminal.

As shown in <FIG>, the tubular portion 13A of the contact <NUM> is provided in its interior with a projection accommodating portion 13C of recess shape opening in the -Z direction, and the flange 13B extends along an XY plane from an opening end portion of the projection accommodating portion 13C.

When the connector <NUM> is assembled, first, the bosses 17C of the top insulator <NUM> are separately inserted into the cutouts 14B of the reinforcement sheet <NUM>. At this time, the four contact through-holes 17B of the top insulator <NUM> are situated within the opening portion 14A of the reinforcement sheet <NUM>.

Subsequently, the tubular portion 13A of each of the contacts <NUM> is inserted from the -Z direction into the corresponding one of the four contact through-holes 17B of the top insulator <NUM>, and the bottom insulator <NUM> is pressed against the top insulator <NUM> in the +Z direction with the sheet type conductive member <NUM> being sandwiched therebetween. At this time, the flange 13B of each of the contacts <NUM> is situated on the corresponding contact arrangement region 15A of the sheet type conductive member <NUM>, and the corresponding projection 16B of the bottom insulator <NUM> is inserted into the projection accommodating portion 13C of each of the contacts <NUM> while pushing the sheet type conductive member <NUM>.

At this time, when the sheet type conductive member <NUM> is high in stretchability, the projection 16B is inserted into the projection accommodating portion 13C while being wrapped by the sheet type conductive member <NUM>. On the other hand, when the sheet type conductive member <NUM> is low in stretchability, it is preferable that the sheet type conductive member <NUM> is cut in advance at a position corresponding to the projection 16B, and the projection 16B is then inserted into the projection accommodating portion 13C.

In addition, by pressing the bottom insulator <NUM> against the top insulator <NUM>, the plurality of bosses 17C of the top insulator <NUM> sequentially penetrate the plurality of through-holes 15B of the sheet type conductive member <NUM> and the plurality of the through-holes 16C of the bottom insulator <NUM>, and the top insulator <NUM> and the bottom insulator <NUM> are fixed to each other through heat deformation of a tip of each of the plurality of bosses 17C projecting on the -Z direction side of the bottom insulator <NUM>. Thus, the assembling operation of the connector <NUM> is completed.

It should be noted that the flange 13B of each of the contacts <NUM> is sandwiched between the top insulator <NUM> and the bottom insulator <NUM> so that the contacts <NUM> are fixed to the top insulator <NUM> and the bottom insulator <NUM>.

Here, in the region R2 of the sheet type conductive member <NUM> in which the contact <NUM> used as a shield terminal is arranged, as shown in <FIG>, the shield layer 18D is exposed on the +X direction-side portion of the region R2, and the shield layer 18F is exposed on the -X direction-side portion of the region R2. Therefore, when the projection 16B of the bottom insulator <NUM> is inserted into the projection accommodating portion 13C of the contact <NUM> arranged in the region R2, as shown in <FIG>, the sheet type conductive member <NUM> is sandwiched between a lateral surface of the projection 16B and an inner surface of the projection accommodating portion 13C of the contact <NUM>, and the shield layer 18D contacts the inner surface on the +X direction side of the projection accommodating portion 13C of the contact <NUM> with predetermined contact pressure, and the shield layer 18F contacts the inner surface on the -X direction side of the projection accommodating portion 13C of the contact <NUM> with predetermined contact pressure. Thus, both the shield layer 18D and the shield layer 18F that form the contact connecting portion C are electrically connected to the contact <NUM> arranged in the region R2.

Thus, with the connector <NUM> of Embodiment <NUM>, without using a dedicated linking conductive member, both the shield layer 18D (first flexible conductor) and the shield layer 18F (second flexible conductor) respectively disposed on the front surface side and the rear surface side of the sheet type conductive member <NUM> can be electrically connected to the single contact <NUM> arranged in the region R2.

In addition, since the signal wiring layer 18B is exposed in, of the four contact arrangement regions 15A laid out on the front surface of the sheet type conductive member <NUM>, the three regions R1 in which the three contacts <NUM> used as signal terminals are separately arranged, when the projection 16B of the bottom insulator <NUM> is inserted into the projection accommodating portion 13C of the contact <NUM> arranged in the region R1, although not shown, the sheet type conductive member <NUM> is sandwiched between the lateral surface of the projection 16B and the inner surface of the projection accommodating portion 13C of the contact <NUM>, and the signal wiring layer 18B (third flexible conductor) contacts the inner surface of the projection accommodating portion 13C of the contact <NUM> with predetermined contact pressure and is electrically connected to the contact <NUM> arranged in the region R1.

It should be noted that a predetermined patterning is applied to the signal wiring layer 18B, and the three contacts <NUM> arranged in the three regions R1 are separately connected to three wires each formed of the signal wiring layer 18B and insulated from one another.

As shown in <FIG>, since the signal wiring layer 18B is disposed between the shield layer 18D and the shield layer 18F while being insulated from the shield layer 18D and the shield layer 18F respectively disposed on the front surface side and the rear surface side of the sheet type conductive member <NUM>, a shield effect with respect to the signal wiring layer 18B is exhibited when the contact <NUM> arranged in the region R2 and connected to the shield layer 18D and the shield layer 18F is connected to a ground potential, and it is possible to carry out highly accurate signal transmission with reduced influence of external disturbances caused by, for example, electromagnetic waves.

In Embodiment <NUM> above, the insertion hole 15D of the sheet type conductive member <NUM> is formed in the region R2, and the insertion portion 15E of the tongue portion 15C is inserted into the insertion hole 15D, but the invention is not limited thereto; for example, like a sheet type conductive member <NUM> shown in <FIG>, insertion holes 25D may be formed outside the region R2 and near the region R2.

In the sheet type conductive member <NUM>, the insertion holes 25D are formed to respectively extend in the Y direction on the +Y direction side and the -Y direction side of the region R2 across the region R2, and a pair of insertion portions 25E are formed, with a distance therebetween in the Y direction, at a -X directional end portion of a tongue portion 25C of the sheet type conductive member <NUM>. Each of the insertion portions 25E is formed to be wider in the Y direction than the corresponding insertion hole 25D.

The sheet type conductive member <NUM> has the same multilayer structure as that of sheet type conductive member <NUM> shown in <FIG>, and the shield layer 18D is exposed toward the +Z direction at the +X direction-side portion of the region R2.

In addition, as shown in <FIG>, the shield layer 18F is exposed toward the -Z direction on the rear surface, facing in the -Z direction, of the tongue portion 25C.

When the tongue portion 25C is folded back to the front surface side of the sheet type conductive member <NUM>, as shown in <FIG>, the shield layer 18F exposed on the rear surface of the tongue portion 25C is directed to the +Z direction, and in this state, as shown in <FIG>, the pair of insertion portions 25E formed at the end portion of the tongue portion 25C are separately inserted into the pair of insertion holes 25D of the sheet type conductive member <NUM> from the +Z direction side to the -Z direction side.

Consequently, as shown in <FIG>, the tongue portion 25C is retained while being folded back to the front surface side of the sheet type conductive member <NUM>, the shield layer 18D is disposed on the +X direction-side portion of the region R2, and the shield layer 18F is disposed on the -X direction-side portion of the region R2, so that the contact connecting portion C formed of part of the shield layer 18D and part of the shield layer 18F is formed in the region R2.

Even when the sheet type conductive member <NUM> above is used, as with Embodiment <NUM> above, without using a dedicated linking conductive member, both the shield layer 18D (first flexible conductor) and the shield layer 18F (second flexible conductor) respectively disposed on the front surface side and the rear surface side of the sheet type conductive member <NUM> can be electrically connected to the single contact <NUM> arranged in the region R2.

<FIG> shows a connector <NUM> according to Embodiment <NUM>. As with the connector <NUM> of Embodiment <NUM>, the connector <NUM> is used as, for example, a garment-side connector for fitting a wearable device and has four contacts <NUM>, but <FIG> shows only a contact <NUM> and a portion therearound used as a shield terminal, and the other contacts used as signal terminals are omitted.

The connector <NUM> includes a housing <NUM> made of an insulating material, a sheet type conductive member <NUM> and the contact <NUM> that are retained by the housing <NUM>.

As shown in <FIG>, the connector <NUM> includes a bottom insulator <NUM> and a top insulator <NUM>, and these bottom and top insulators <NUM> and <NUM> constitute the housing <NUM>. The sheet type conductive member <NUM> and the contact <NUM> are disposed between the bottom insulator <NUM> and the top insulator <NUM>.

As with the sheet type conductive member <NUM> in Embodiment <NUM>, four contact arrangement regions 35A are laid out on a front surface, facing in the +Z direction, of the sheet type conductive member <NUM>, but as shown in <FIG>, an opening portion 35B of substantially circular shape penetrating the sheet type conductive member <NUM> in the Z direction is formed inside the contact arrangement region 35A in which the contact <NUM> used as a shield terminal is to be arranged.

The opening portion 35B is provided with its inner side with a tongue portion 35C extending in the opening portion 35B in the X direction from the periphery of the - X direction side of the contact arrangement region 35A in an XY plane, and a pair of protruding portions 35D respectively projecting in the opening portion 35B in the Y direction from the periphery of the +Y direction side and the periphery of the -Y direction side of the contact arrangement region 35A in the XY plane. The tongue portion 35C has an X directional length larger than a radius of the opening portion 35B of substantially circular shape, and the pair of protruding portions 35D each have a Y directional length smaller than the radius of the opening portion 35B of substantially circular shape.

As shown in <FIG>, the shield layer 18D disposed on the front surface side of the sheet type conductive member <NUM> is exposed on a front surface, facing in the +Z direction, of each of the pair of the protruding portions 35D, and as shown in <FIG>, the shield layer 18F disposed on the rear surface side of the sheet type conductive member <NUM> is exposed on a rear surface, facing in the -Z direction, of the tongue portion 35C.

As shown in <FIG>, as with the contact <NUM> in Embodiment <NUM>, the contact <NUM> is a plug-type contact made of a conductive material such as metal and includes a tubular portion 33A of cylindrical shape extending in the Z direction, and a flange 33B extending along an XY plane from a -Z directional end portion of the tubular portion 33A, and the tubular portion 33A is provided in its interior with a projection accommodating portion 33C of recess shape opening in the -Z direction.

As shown in <FIG>, the bottom insulator <NUM> includes a flat plate portion 36A, and on the flat plate portion 36A, a projection 36B is formed to project in the +Z direction. When the connector <NUM> is assembled, the projection 36B is, together with the sheet type conductive member <NUM>, inserted into the projection accommodating portion 33C of the contact <NUM>, and a lateral surface on the -X direction side of the projection 36B is provided with a pressing portion 36C pressing the tongue portion 35C of the sheet type conductive member <NUM> against an inner surface of the projection accommodating portion 33C of the contact <NUM>.

Since the tongue portion 35C being folded back at an intermediate portion in the X direction of the tongue portion 35C is sandwiched between the projection 36B and the inner surface of the projection accommodating portion 33C, the pressing portion 36C has a width slightly wider than a width dimension of the tongue portion 35C along a circumference of the projection 36B, and has a shape recessed, toward a central axis of the projection 36B, compared to the lateral surface on the +Y direction side and the lateral surface on the -Y direction side of the projection 36B.

As shown in <FIG>, the top insulator <NUM> has a contact through-hole 37A. The contact through-hole 37A has an inside diameter larger than an outside diameter of the tubular portion 33A of the contact <NUM> and smaller than an outside diameter of the flange 33B to allow smooth insertion of the tubular portion 33A of the contact <NUM>.

When the connector <NUM> is assembled, as shown in <FIG>, the tubular portion 33A of the contact <NUM> is inserted from the -Z direction into the contact through-hole 37A of the top insulator <NUM>, and the bottom insulator <NUM> is pressed in the +Z direction against the top insulator <NUM> with the sheet type conductive member <NUM> being sandwiched therebetween. At this time, the tongue portion 35C of the sheet type conductive member <NUM> is folded back at the intermediate portion in the length direction of the tongue portion 35C so that the shield layer 18F exposed on a rear surface of the tongue portion 35C is directed to the +Z direction, and in this state, the tongue portion 35C is bent in the +Z direction by the projection 36B of the bottom insulator <NUM> and inserted into the projection accommodating portion 33C of the contact <NUM>.

In this manner, the tongue portion 35C is sandwiched between the pressing portion 36C of the projection 36B and the inner surface of the projection accommodating portion 33C of the contact <NUM>, but since the tongue portion 35C is folded back, the shield layer 18F contacts the inner surface on the -X direction side of the projection accommodating portion 33C of the contact <NUM> with predetermined contact pressure, the shield layer 18F is electrically connected to the contact <NUM>.

<FIG> shows a connecting state at this time between the shield layer 18F of the tongue portion 35C of the sheet type conductive member <NUM> and the inner surface of the projection accommodating portion 33C of the contact <NUM>.

In addition, as shown in <FIG>, each of the pair of protruding portions 35D of the sheet type conductive member <NUM> is also bent in the +Z direction by the projection 36B of the bottom insulator <NUM>, inserted into the projection accommodating portion 33C of the contact <NUM>, and sandwiched between the lateral surface of the projection 36B and the inner surface of the projection accommodating portion 33C of the contact <NUM>.

Since the shield layer 18D is exposed on the front surface, facing in the +Z direction, of these protruding portions 33D, the shield layer 18D of the pair of protruding portions 35D contacts the inner surface on the +Y direction side and on the - Y direction side of the projection accommodating portion 33C of the contact <NUM> with predetermined contact pressure, whereby the shield layer 18D is electrically connected to the contact <NUM>.

<FIG> shows a connecting state at this time between the shield layer 18D of the protruding portion 35D of the sheet type conductive member <NUM> and the inner surface of the projection accommodating portion 33C of the contact <NUM>.

Consequently, the shield layer 18F of the tongue portion 35C and the shield layer 18D of the pair of protruding portions 35D are electrically connected to the contact <NUM>.

In this manner, also with the connector <NUM> of Embodiment <NUM>, without using a dedicated linking conductive member, both the shield layer 18D (first flexible conductor) and the shield layer 18F (second flexible conductor) respectively disposed on the front surface side and the rear surface side of the sheet type conductive member <NUM> can be electrically connected to the single contact <NUM> arranged in the contact arrangement region 35A.

In addition, although not shown, as with Embodiment <NUM>, the other contacts <NUM> used as signal terminals are separately disposed in the contact arrangement regions of the sheet type conductive member <NUM> on which the signal wiring layer 18B is exposed, and are electrically connected to the signal wiring layer 18B. Since the signal wiring layer 18B is disposed between the shield layer 18D and the shield layer 18F respectively disposed on the front side surface and the rear side surface of the sheet type conductive member <NUM> while being insulated from the these shield layers 18D and 18F, by connecting, to a ground potential, the contact <NUM> connected to the shield layer 18D and the shield layer 18F, a shield effect with respect to the signal wiring layer 18B is exhibited, and it is possible to carry out highly accurate signal transmission with reduced influence of external disturbances caused by, for example, electromagnetic waves.

Instead of the sheet type conductive member <NUM>, a sheet type conductive member <NUM> shown in <FIG> may be used. As with the sheet type conductive member <NUM>, an opening portion 45B is formed inside a contact arrangement region 45A laid out on a front surface, facing in the +Z direction, of the sheet type conductive member <NUM>, and a tongue portion 45C extending in the +X direction and a pair of protruding portions 45D extending in the Y direction are disposed in the opening portion 45B. Although not shown, the shield layer 18F is exposed on a rear surface, facing in the -Z direction, of the tongue portion 45C, and the shield layer 18D is exposed on front surfaces, facing in the +Z direction, of the pair of protruding portions 45D.

In the sheet type conductive member <NUM>, an insertion hole 45F penetrating from the front surface to a rear surface of the sheet type conductive member <NUM> is formed at a root portion of the tongue portion 45C and inside the contact arrangement region 45A, and an insertion portion 45E is formed, at a +X directional end portion of the tongue portion 45C, to be wider in the Y direction than the insertion hole 45F.

Owing to the use of the sheet type conductive member <NUM> having such a structure, the tongue portion 45C being folded back to the front surface side of the sheet type conductive member <NUM> is retained because the insertion portion 45E formed at the end portion of the tongue portion 45C is inserted into the insertion hole 45F of the sheet type conductive member <NUM> when the tongue portion 45C is folded back at an intermediate portion in the X direction of the tongue portion 45C as with Embodiment <NUM>.

Therefore, the operability in assembling the connector can be improved.

Further, a sheet type conductive member <NUM> shown in <FIG> may be used. As with the sheet type conductive member <NUM>, an opening portion 55B is formed inside a contact arrangement region 55Alaid out on a front surface, facing in the +Z direction, of the sheet type conductive member <NUM>, and a tongue portion 55C extending in the +X direction and a pair of protruding portions 55D extending in the Y direction are disposed in the opening portion 55B. Although not shown, the shield layer 18F is exposed on a rear surface, facing in the -Z direction, of the tongue portion 55C, and the shield layer 18D is exposed on front surfaces, facing in the +Z direction, of the pair of protruding portions 55D.

In the sheet type conductive member <NUM>, an insertion hole 55F penetrating from the front surface to a rear surface of the sheet type conductive member <NUM> is formed at the -X direction side of the tongue portion 55C and outside the contact arrangement region 55A, and an insertion portion 55E is formed, at a +X directional end portion of the tongue portion 55C, to be wider in the Y direction than the insertion hole 55F.

Owing to the use of the sheet type conductive member <NUM> having such a structure, the tongue portion 55C being folded back to the front surface side of the sheet type conductive member <NUM> is retained because the insertion portion 55E formed at an end portion of the tongue portion 55C is inserted into the insertion hole 55F of the sheet type conductive member <NUM> when the tongue portion 55C is folded back at an intermediate portion in the X direction of the tongue portion 55C.

Therefore, even when the sheet type conductive member <NUM> is used, the operability in assembling the connector can be improved.

While the sheet type conductive members <NUM>, <NUM>, <NUM> used in Embodiments <NUM> and <NUM> above have the multilayer structure shown in <FIG>, the invention is not limited thereto, and it suffices if a sheet type conductive member has at least a first flexible conductor and a second flexible conductor respectively disposed on the front surface side and the rear surface side of the sheet body.

In addition, while the two conductive layers, i.e., the shield layer 18D and the shield layer 18F of the sheet type conductive member <NUM>, <NUM>, <NUM> are connected to the single contact <NUM>, <NUM> used as a shield terminal in Embodiments <NUM> and <NUM> above, the invention is not limited thereto. For example, a plurality of tongue portions are formed in a sheet type conductive member having three or more conductive layers, and these tongue portions are folded back; owing to this configuration, a contact connecting portion composed of parts of the respective conductive layers can be formed in a contact arrangement region, and thus, the three or more conductive layers can be connected to a single contact in the same manner.

In addition, while the connector <NUM> according to Embodiment <NUM> above and the connector <NUM> according to Embodiment <NUM> above have the four contacts <NUM>, <NUM> including the contact used as a shield terminal and the contacts used as signal terminals, the invention is not limited to this number of contacts, and it suffices if the connector includes at least a single contact electrically connected to the first flexible conductor and the second flexible conductor respectively disposed on the front surface side and the rear surface side of the sheet body of the sheet type conductive member <NUM>, <NUM>, <NUM>.

While the plug-type contacts <NUM>, <NUM> are used in the above-described Embodiments <NUM> and <NUM>, the invention is not limited thereto, and it is also possible to similarly configure a connector having receptacle-type contacts.

Claim 1:
A sheet type conductive member (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>) that extends along a predetermined plane and is attached to a connector, the sheet type conductive member comprising:
a sheet body (18A) having insulating properties; and
a first flexible conductor (18D) disposed on a front surface side of the sheet body, and a second flexible conductor (18F) disposed on a rear surface side of the sheet body,
characterized in that
the sheet type conductive member includes a tongue portion (15C, 25C, 35C, 45C, 55C) projecting in a tongue shape in the predetermined plane,
wherein a contact arrangement region (15A, 35A, 45A, 55A) in which a contact (<NUM>, <NUM>) of the connector is arranged is laid out on a front surface of the sheet type conductive member,
wherein the first flexible conductor is exposed on the contact arrangement region,
wherein the second flexible conductor is exposed on a rear surface of the tongue portion, and
wherein at least part of the tongue portion is folded back to a front surface side of the sheet type conductive member so that a contact connecting portion (C) composed of part of the first flexible conductor and part of the second flexible conductor is formed in the contact arrangement region.