Contact terminal, inspection jig, and inspection apparatus

An inspection jig comprising:

• a contact terminal comprising:
• a tubular body made of an electrically conductive material;
• and
• a first central conductor and a second central conductor each of which is made of an electrically conductive material, and is in a shape of a rod;
• wherein the first central conductor comprises:
• a first rod-shaped body configured to have an outside diameter smaller than an inside diameter of the tubular body, and to be inserted into a first end portion of the tubular body;
• a first clasped portion at a proximal end portion of the first rod-shaped body, and having a diameter greater than that of the first rod-shaped body;
• and
• a first swell portion at a distal end portion of the first rod-shaped body, and having a diameter greater than that of the first rod-shaped body;
• the second central conductor includes:
• a second rod-shaped body configured to have an outside diameter smaller than the inside diameter of the tubular body, and to be inserted into a second end portion of the tubular body;
• a second clasped portion at a proximal end portion of the second rod-shaped body, and configured to have a diameter greater than that of the second rod-shaped body;
• and
• a second swell portion at a distal end portion of the second rod- shaped body, and having a diameter greater than that of the second rod- shaped body;
• the tubular body comprises:
• a first clasping portion configured to clasp the first clasped portion;
• a second clasping portion configured to clasp the second clasped portion;
• a first spring portion defined by a helical body contiguous with the first clasping portion;
• a second spring portion defined by a helical body contiguous with the second clasping portion;
• and
• a tubular joining portion configured to join the first and second spring portions to each other;
• and
• the first and second central conductors are configured to have a distal end portion of each of the first and second swell portions inserted into the joining portion, and to have a distal end surface of the first swell portion and a distal end surface of the second swell portion kept opposite to each other with a gap therebetween;
• and
• the inspection jig further comprising a support member configured to support the contact terminal.

An inspection apparatus comprising:

• an inspection jig comprising:
• a contact terminal comprising:
• a tubular body made of an electrically conductive material;
• and
• a first central conductor and a second central conductor each of which is made of an electrically conductive material, and is in a shape of a rod;
• wherein the first central conductor comprises:
• a first rod-shaped body configured to have an outside diameter smaller than an inside diameter of the tubular body, and to be inserted into a first end portion of the tubular body;
• a first clasped portion at a proximal end portion of the first rod-shaped body, and having a diameter greater than that of the first rod-shaped body;
• and
• a first swell portion at a distal end portion of the first rod-shaped body, and having a diameter greater than that of the first rod-shaped body;
• the second central conductor includes:
• a second rod-shaped body configured to have an outside diameter smaller than the inside diameter of the tubular body, and to be inserted into a second end portion of the tubular body;
• a second clasped portion at a proximal end portion of the second rod-shaped body, and configured to have a diameter greater than that of the second rod-shaped body;
• and
• a second swell portion at a distal end portion of the second rod-shaped body, and having a diameter greater than that of the second rod-shaped body;
• the tubular body comprises:
• a first clasping portion configured to clasp the first clasped portion;
• a second clasping portion configured to clasp the second clasped portion;
• a first spring portion defined by a helical body contiguous with the first clasping portion;
• a second spring portion defined by a helical body contiguous with the second clasping portion;
• and
• a tubular joining portion configured to join the first and second spring portions to each other;
• and
• the first and second central conductors are configured to have a distal end portion of each of the first and second swell portions inserted into the joining portion, and to have a distal end surface of the first swell portion and a distal end surface of the second swell portion kept opposite to each other with a gap therebetween;
• and
• a support member configured to support the contact terminal;
• and
• the inspection apparatus further comprising an inspection processing portion configured to inspect an inspection target on a basis of an electrical signal from contact between the contact terminal and an inspection point in the inspection target.