A connector connecting a conductor portion of an electric wire to a flexible conductor exposed on at least one surface of a sheet type conductive member (11, 21, 31, 41), the connector comprising: a first insulator (14, 24, 34, 44) including a first retaining surface (14B, 24B, 34B, 44B) and a protrusion portion (14C, 24C, 34C, 44C) formed on the first retaining surface to protrude; a second insulator (15, 25, 35, 45) including a second retaining surface (15B, 25B, 35B, 45B) that faces the first retaining surface and a recess portion (15C, 25C, 35C, 45C) that is formed at the second retaining surface and corresponds to the protrusion portion; and a spring member (16, 26, 36, 46) retained in one of the first insulator and the second insulator, wherein the spring member is disposed between the protrusion portion and the recess portion and has a pressing portion (P1, P2, P3, P4) that is elastically displaceable in a first direction along the first retaining surface and the second retaining surface, the sheet type conductive member and the electric wire are sandwiched between the first retaining surface and the second retaining surface, and at least a part of the protrusion portion is accommodated in the recess portion, and the conductor portion of the electric wire and the flexible conductor of the sheet type conductive member are pressed against each other in the first direction by the pressing portion within the recess portion, so that the conductor portion of the electric wire is electrically connected to the flexible conductor of the sheet type conductive member (11, 21, 31, 41), wherein the electric wire has a structure in which the outer periphery of the conductor portion is covered with an insulating coating portion, and wherein the spring member (16, 26, 36, 46) has a pair of the pressing portions (P1, P2, P3, P4) each of which is disposed between a lateral surface of the protrusion portion (14C, 24C, 34C, 44C) and an inner lateral surface of the recess portion (15C, 25C, 35C, 45C) on each of opposite sides of the protrusion portion in the first direction, the lateral surface and the inner lateral surface facing each other in the first direction, characterised in that the conductor portion drawn from the insulating coating portion of the electric wire and the flexible conductor of the sheet type conductive member are pressed against each other in the first direction by the pair of the pressing portions on the opposite sides of the protrusion portion in the first direction, wherein the first insulator (14, 34, 44) includes an electric wire accommodating groove (14D, 34D, 44D) provided at a top of the protrusion portion (14C, 34C, 44C) and extending in the first direction to accommodate the conductor portion of the electric wire. a first insulator (14, 24, 34, 44) including a first retaining surface (14B, 24B, 34B, 44B) and a protrusion portion (14C, 24C, 34C, 44C) formed on the first retaining surface to protrude; a second insulator (15, 25, 35, 45) including a second retaining surface (15B, 25B, 35B, 45B) that faces the first retaining surface and a recess portion (15C, 25C, 35C, 45C) that is formed at the second retaining surface and corresponds to the protrusion portion; and a spring member (16, 26, 36, 46) retained in one of the first insulator and the second insulator, wherein the spring member is disposed between the protrusion portion and the recess portion and has a pressing portion (P1, P2, P3, P4) that is elastically displaceable in a first direction along the first retaining surface and the second retaining surface, the sheet type conductive member and the electric wire are sandwiched between the first retaining surface and the second retaining surface, and at least a part of the protrusion portion is accommodated in the recess portion, and the conductor portion of the electric wire and the flexible conductor of the sheet type conductive member are pressed against each other in the first direction by the pressing portion within the recess portion, so that the conductor portion of the electric wire is electrically connected to the flexible conductor of the sheet type conductive member (11, 21, 31, 41), wherein the electric wire has a structure in which the outer periphery of the conductor portion is covered with an insulating coating portion, and wherein the spring member (16, 26, 36, 46) has a pair of the pressing portions (P1, P2, P3, P4) each of which is disposed between a lateral surface of the protrusion portion (14C, 24C, 34C, 44C) and an inner lateral surface of the recess portion (15C, 25C, 35C, 45C) on each of opposite sides of the protrusion portion in the first direction, the lateral surface and the inner lateral surface facing each other in the first direction, characterised in that the conductor portion drawn from the insulating coating portion of the electric wire and the flexible conductor of the sheet type conductive member are pressed against each other in the first direction by the pair of the pressing portions on the opposite sides of the protrusion portion in the first direction, wherein the first insulator (14, 34, 44) includes an electric wire accommodating groove (14D, 34D, 44D) provided at a top of the protrusion portion (14C, 34C, 44C) and extending in the first direction to accommodate the conductor portion of the electric wire.