JP2017090088A - Continuity inspection jig, continuity inspection device, and continuity inspection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a continuity inspection jig, a continuity inspection device, and a continuity inspection method with which it is possible to more effectively suppress the deformation of or damage to an object to be inspected for continuity.SOLUTION: The body of a continuity jig of the present invention holds a terminal metal fitting. A piping 12 blows off air from a first blow-off port 12a provided at an ends. Also, the piping 12 blows off air from a second blow-off port 12b provided at a side face. The end of the piping 12 is inserted into the cylindrical circumferential wall 13c of a conducting pin 13. When air is blown off from the first blow-off port 12a of the piping 12, an air reception part 13a receives the air and a pin body 13b approaches the terminal metal fitting and comes in contact with it. Also, when air is blown off from the second blow-off port 12b of the piping 12, the circumferential wall 13c receives the air and the circumferential wall 13c is pressed against the piping 12.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a continuity inspection jig, a continuity inspection apparatus, and a continuity inspection method that are used for a continuity inspection of a current inspection target.

  A wire harness (a current inspection target) that is wired in a vehicle and used for connecting various electronic devices or the like has a plurality of electric wires in which terminal fittings housed in a connector housing are provided at a terminal. Then, a continuity test is performed on such a wire harness in order to detect disconnection of the electric wire, connection failure of the terminal, and the like.

  The continuity test is performed by, for example, bringing a pair of inspection probes into contact with terminal fittings provided at both ends of the electric wire and confirming the continuity between the inspection probes. As a result, the terminal fitting may be deformed or damaged. An example of an inspection probe capable of suppressing such deformation and damage of the terminal fitting is disclosed in Patent Document 1.

  An inspection probe disclosed in Patent Document 1 includes a tube attached to a main body of an inspection device, a movable pin supported by the tube so as to protrude and retract, and is disposed in the tube and causes the movable pin to protrude from the tube. A coil spring that presses in the direction. According to this inspection probe, when the terminal fitting is pressed against the movable pin, the movable pin is pushed into the tubular body according to the pressing force, so that deformation and damage of the terminal fitting can be suppressed.

Japanese Patent Laid-Open No. 9-43298

  However, the inspection probe configured to press the movable pin with the coil spring as disclosed in Patent Document 1 presses the movable pin with the coil spring in order to reliably contact the movable pin and the terminal metal fitting even when repeatedly used. In consideration of deterioration of the coil spring (decrease in spring force, etc.), it is required to set the force to be larger than the minimum necessary force to ensure conduction between the movable pin and the terminal fitting. There was room for improvement in terms of suppressing deformation and damage to the terminal fittings.

  Therefore, the present invention aims to solve such a problem. That is, an object of the present invention is to provide a continuity inspection jig, a continuity inspection apparatus, and a continuity inspection method that can more effectively suppress deformation and damage of a continuity inspection target.

  The invention described in claim 1 is a continuity inspection jig used for continuity inspection of a continuity test object, from a jig body that holds the continuity test object, and a first outlet provided at an end portion. A pipe that blows out air, an air receiving portion that receives air blown from the first outlet, a pin body that comes close to and comes into contact with the continuity test object by the pressure of the air received by the air receiving portion, A conducting pin having a standing wall standing from the air receiving portion in a direction opposite to the air blowing direction from the air blowing port, and the pipe is configured to blow air toward the standing wall. A continuity inspection jig provided with two outlets, wherein the standing wall is pressed against the pipe by the pressure of air blown from the second outlet. That.

  According to a second aspect of the present invention, the vertical wall is provided in a cylindrical shape, the pipe is inserted into the cylindrical vertical wall, and the second blow-out port is directed toward the inner surface of the vertical wall. The continuity inspection jig according to claim 1, wherein the continuity inspection jig is provided on a side surface of the pipe so as to blow out air.

  According to a third aspect of the present invention, the pipe is provided with a pipe body provided with the first blow-out port at an end portion thereof, and branched from the pipe main body, and the second blow-out port is provided at an end portion thereof. The branch pipe is provided such that the air from the second outlet is directed to a surface of the standing wall on the side away from the pipe body. 1. The continuity inspection jig according to 1.

  Invention of Claim 4 is a continuity test apparatus used for the continuity test of the continuity test object, Comprising: The continuity test object through the continuity test jig according to any one of claims 1 to 3 and the continuity pin. And a continuity determination means for inspecting continuity of the continuity.

  The invention according to claim 5 is a continuity test method for conducting a continuity test on a continuity test target, and uses the continuity test jig according to any one of claims 1 to 3, The jig body includes a holding step for holding the continuity test target, an air control step for sending air into the pipe, and a continuity determination step for determining continuity of the continuity test target through the conduction pin. It is a continuity inspection method characterized by this.

  As described above, according to the first, fourth, and fifth aspects of the invention, the conduction pin is brought into contact with the object to be inspected by the pressure of air. As a result, by using air pressure, the continuity pin is brought into contact with the continuity test object with the minimum necessary force to ensure continuity between the continuity pin and the continuity test object in each continuity test. Can be made. Therefore, it is possible to effectively suppress deformation and damage of the continuity test target. Moreover, since there is no deterioration like a coil spring, a conduction | electrical_connection pin can be always made to contact a conduction | electrical_connection test object with a fixed force, Therefore A fixed quality can be maintained.

  Further, the pipe is provided with a second outlet for blowing air toward the standing wall, and the standing wall is pressed against the pipe by the pressure of the air blown out from the second outlet. For this reason, since the attitude | position of a conduction | electrical_connection pin is corrected so that the blowing direction of the air from a 1st blowing outlet may be followed, the stability of a contact with a conduction | electrical_connection pin and a conduction inspection object can be aimed at.

  According to the second aspect of the present invention, the standing wall can be easily pressed against the pipe simply by providing the second outlet on the side surface of the pipe.

  According to invention of Claim 3, a standing wall can be easily pressed on piping only by providing branch piping.

It is a figure which shows schematic structure of the continuity inspection apparatus of one Embodiment of this invention. It is a cross-sectional perspective view of the continuity inspection jig with which the continuity inspection apparatus of FIG. 1 is provided. It is a fragmentary sectional view of the conduction inspection jig with which the conduction inspection device of Drawing 1 is provided (state where a conduction pin is not in contact with a terminal metal fitting). FIG. 4 is an enlarged view of part X of FIG. 3. It is a fragmentary sectional view of the conduction inspection jig with which the conduction inspection device of Drawing 1 is provided (state where a conduction pin is in contact with a terminal metal fitting). FIG. 6 is an enlarged view of a portion Y in FIG. 5. It is a figure for demonstrating the state which pressed the conduction | electrical_connection pin with which the continuity inspection apparatus of FIG. It is a figure for demonstrating the state which pressed the conduction | electrical_connection pin in other embodiment on the edge part of piping.

  Hereinafter, a continuity test apparatus according to an embodiment of the present invention will be described with reference to FIGS.

  For example, as shown in FIG. 1, the continuity testing apparatus 1 of the present embodiment is used for continuity testing of a vehicular wire harness 101 (conductivity test target) routed on an inspection table K installed horizontally. . The wire harness 101 has a wire harness body 106 in which a plurality of electric wires 102 (FIG. 2) are bundled, and a connector 105 provided at the end of the wire harness body 106. The wire harness body 106 has a trunk line 101a and a branch line 101b branched from the trunk line 101a.

  As shown in FIG. 2, the connector 105 includes a plurality of terminal fittings 103 provided at terminals of the plurality of electric wires 102 constituting the wire harness main body 106, a connector housing 104 that accommodates the plurality of terminal fittings 103, have. The connector 105 is connected to an electronic device or the like mounted on the vehicle. In the present embodiment, the terminal fitting 103 is provided, for example, in a female form, and a cylindrical terminal connection portion connected to the terminal fitting of the mating connector, and an elastic contact piece that protrudes from the terminal connection portion and contacts the terminal fitting of the mating connector. And have.

  As shown in FIG. 1, the continuity test apparatus 1 includes a continuity test jig 10, an air control unit 30 as an air control unit, and a continuity determination unit 40 as a continuity determination unit.

  As shown in FIG. 2, the continuity inspection jig 10 includes an inspection jig body 11 as a jig body, a plurality of conductive pipes 12, and a plurality of conduction pins 13.

  The inspection jig main body 11 is for holding the connector 105 described above, and is configured using, for example, a synthetic resin having electrical insulation as a material. The inspection jig body 11 includes a rectangular plate-shaped first base 111, a rectangular box-shaped second base 112, and four legs that connect the square of the first base 111 and the second base 112. 113. The inspection jig body 11 is provided such that the first base 111 is placed on the inspection table K.

  As shown in FIGS. 2 to 6, the first base 111 includes a rectangular plate-shaped plate portion 111 a and a connector fitting portion 111 b that stands upward from the plate portion 111 a. The connector fitting portion 111b is provided in a rectangular tube shape having an upper opening, and is formed so that the connector 105 (that is, the connector housing 104) described above can be inserted and fitted. When the connector 105 is inserted into the connector fitting portion 111b from the upper opening, the connector 105 hits the plate portion 111a and is held.

  A plurality of pin insertion holes 111d penetrating in the vertical direction are provided in a portion surrounded by the connector fitting portion 111b in the plate portion 111a. Each pin insertion hole 111d is disposed at a position corresponding to each terminal fitting 103 accommodated in the connector housing 104 inserted into the connector fitting portion 111b. A pin main body 13b of a conductive pin 13 to be described later is inserted into the connector fitting portion 111b so as to protrude and retract through the pin insertion hole 111d.

  As shown in FIG. 2, the portion immediately below the connector fitting portion 111 b in the space between the first base 111 and the second base 112 is directed from the second base 112 to the first base 111. A plurality of pipes 12 are erected. The ceiling wall 112a of the box-shaped second base 112 is provided with a pipe through hole 112b through which the pipe 12 passes. One end of each pipe 12 is a first air outlet 12a for air, and the first air outlet 12a is connected to the first base 12a from the inside of the second base 112 through the pipe through hole 112b. It is erected so as to face the table 111. In this embodiment, the piping 12 is arrange | positioned so that the blowing direction from the 1st blower outlet 12a may become upward. The other end of each pipe 12 extends from the inside of the second base 112 to the outside of the second base 112 through an unillustrated extension hole and is connected to a valve unit 33 described later. . The piping 12 will be described again later.

  The plurality of conductive pins 13 are made of, for example, a conductive material such as a copper alloy. As shown in FIGS. 3 to 6, each of the conductive pins 13 includes an air receiving portion 13a, a pin body 13b, and a standing wall. And the peripheral wall 13c. The air receiving portion 13a is provided in a disk shape having a larger diameter than the pin body 13b in order to receive air from the pipe 12.

  The peripheral wall 13c is erected from the periphery of the air receiving portion 13a downward (opposite to the air blowing direction). The peripheral wall 13c is provided in a cylindrical shape with an opening provided below, and the first outlet 12a of the pipe 12 is inserted into the peripheral wall 13c from this opening.

  The pin main body 13b is provided in a columnar shape, and the other end is fixed to the peripheral wall 13c so that one end stands above the air receiving portion 13a. One end (tip) of the pin main body 13b is pressed against and contacted with the terminal fitting 103 by the pressure of air received by the air receiving portion 13a. The diameter of the pin body 13b is reduced to about φ0.3 mm.

  The piping 12 will be described again. The piping 12 is provided with a second outlet 12b on the side surface. More specifically, on the side surface of the pipe 12, a non-contact state (FIG. 3 and FIG. 4) in which the conduction pin 13 is not in contact with the terminal fitting 103 and a contact state in which the conduction pin 13 is in contact with the terminal fitting 103 (FIG. 5). And in any state of FIG. 6), the 2nd blowing port 12b is provided in the part facing the surrounding wall 13c of the conduction | electrical_connection pin 13. As shown in FIG.

  The blowing direction of the second blowing port 12b is orthogonal to the blowing direction of the first blowing port 12a. As shown in FIG. 7, the second air outlet 12b blows air toward the inner surface of the peripheral wall 13c. The peripheral wall 13c is pressed by the pressure of the air blown from the second outlet 12b, and the peripheral wall 13c is pressed against the pipe 12. More specifically, the part of the peripheral wall 13c that receives air from the second outlet 12b is pressed away from the pipe 12, and the part of the peripheral wall 13c that faces the part that receives air is pressed against the pipe 12.

  As shown in FIG. 1, the air control unit 30 includes a compressor 31, a regulator 32, and a valve unit 33.

  The compressor 31 includes a compression unit 31a that takes in air and compresses it, and a tank 31b that stores the air compressed by the compression unit 31a. The regulator 32 is connected to the tank 31b through the pipe 35, and reduces the pressure of the air from the tank 31b to a predetermined value. The valve unit 33 is connected to the regulator 32 through a pipe 36, and supplies a valve device (not shown) that supplies and shuts off air from the regulator 32, and a distribution device that is provided downstream of the valve device and distributes air to each conduction pin. (Not shown). The distribution part of the valve unit 33 and each continuity inspection jig 10 are connected by a pipe 12.

  As shown in FIGS. 3 to 6, the end of the pipe 12 is arranged along the penetrating direction of the pin insertion hole 111 d and is inserted into the peripheral wall 13 c of each conduction pin 13 passed through the pin insertion hole 111 d. ing. Thereby, air is blown out upward from the first outlet 12a of the pipe 12. Air is blown out from the second outlet 12b of the pipe 12 in the horizontal direction.

  The pipe 12 has an outer diameter smaller than the inner diameter of the peripheral wall 13 c of the conduction pin 13. As a result, in a state where no air is blown out from the first air outlet 12a of the pipe 12, the conduction pin 13 falls downward due to gravity, the air receiving portion 13a hits the pipe 12, and the tip of the pin body 13b is pinned. It immerses in the insertion hole 111d (FIG. 3, FIG. 4).

  In a state where air is blown out from the first blowout port 12a and the second blowout port 12b of the pipe 12 (in a state where air pressure is applied), the pressure of the air from the first blowout port 12a The conduction pin 13 moves upward until the air receiving portion 13a contacts the plate portion 111a, and the tip of the pin body 13b protrudes from the pin insertion hole 111d (FIGS. 5 and 6). The tip of the pin main body 13 b protruding from the pin insertion hole 111 d enters the connector housing 104 and is pressed against and contacted with the terminal fitting 103. The pipe 12 is fixed to the ceiling wall 112a in a state of passing through the pipe through hole 112b of the ceiling wall 112a of the second base 112. In this manner, the pipe 12 blows air to the air receiving portion 13a of the conduction pin 13 to move the conduction pin 13, thereby connecting the terminal fitting 103 (that is, the electric wire 102 as the conduction inspection target) and the conduction pin 13. Switch from non-contact state to contact state. Further, the conduction pin 13 is moved in the horizontal direction by the pressure of the air from the second outlet 12b until the peripheral wall 13c contacts the pipe 12.

  In addition, one end of a wiring L leading to a later-described continuity determination unit 40 is connected to each of the plurality of pipes 12. That is, the continuity determination unit 40 is electrically connected to each pipe 12 through the wiring L.

  The continuity determination unit 40 is configured by, for example, a personal computer and is connected to the above-described compressor 31, regulator 32, and valve unit 33 so as to be able to transmit a control signal. The continuity determination unit 40 controls the start and end of air compression in the compressor 31 during the continuity test, sets the pressure reduction value of the regulator 32, and controls the supply and interruption of air by the valve unit 33.

  Next, a continuity test method performed by the above-described continuity test apparatus 1 will be described below.

  First, as shown in FIG. 1, the wire harness 101 to be subjected to continuity inspection is routed on the inspection table K, and the connector housing 104 of the connector 105 provided at the end of the wire harness 101 is connected to the corresponding continuity inspection. The inspection jig body 11 of the jig 10 is held (holding process). Thereby, the electric wire 102 with the terminal fitting 103 is held by the inspection jig body 11 as a continuity inspection target. In FIG. 1, in the wire harness 101, a connector 105 provided at the end of the trunk line 101 a and the end of the branch line 101 b is held by the continuity inspection jig 10. Further, the other connector 105 (not shown) in the wire harness 101 is similarly fitted to the continuity inspection jig 10 (not shown). In this state, each conduction pin 13 of the conduction inspection jig 10 is not in contact with each corresponding terminal fitting 103 in the connector 105 (FIGS. 3 and 4).

  Next, the continuity determination unit 40 transmits a control signal, starts compression of air by the compressor 31, and sets a reduced pressure value in the regulator 32. At this time, as a reduced pressure value of the regulator 32, the conduction pin 13 moves upward, the tip of the pin body 13b contacts the terminal fitting 103, and the conduction between the conduction pin 13 and the terminal fitting 103 is ensured. The value to be pressed and contacted with the minimum necessary force is set.

  Then, the continuity determination unit 40 transmits a control signal, opens the valve device of the valve unit 33, and blows out air from the first outlet 12a and the second outlet 12b of the pipe 12 (air control process). . Thereby, each conducting pin 13 is moved upward by the pressure of the air blown from the first blowing port 12a, and the tip of each pin body 13b is projected from the pin insertion hole 111d. At this time, the tip of the pin body 13 b is inserted into the cylindrical terminal connection portion of the terminal fitting 103.

  Further, due to the pressure of the air blown out from the second outlet 12b, each conduction pin 13 moves in the horizontal direction until the peripheral wall 13c abuts the pipe 12, and the peripheral wall 13c is pressed and the peripheral wall 13c is pressed against the pipe 12. Pressed. Thereby, each pin main body 13b presses and contacts with the elastic contact piece which protrudes from the inside of the cylinder part of each corresponding terminal metal fitting 103 with minimum force required to ensure conduction (FIGS. 5 and 6).

  Next, the continuity determination unit 40 selects one of the plurality of wires 102 of the wire harness 101, and the terminal fittings 103 at both ends of the one wire 102 are normal (that is, there is no erroneous wiring or the like). ) Is energized between a pair of contact pins 13 to be contacted. And the conduction | electrical_connection determination part 40 determines conduction | electrical_connection by determining whether an electric current flows between these pairs of conduction | electrical_connection pins 13 (conduction determination process). Further, the continuity between the pair of conductive pins 13 and other conductive pins 13 may be inspected to determine the presence or absence of a short circuit or miswiring between the wires 102.

  The continuity determination unit 40 inspects continuity for all of the plurality of electric wires 102 of the wire harness 101 in the same manner as described above. When all the continuity tests are completed, the continuity determination unit 40 closes the valve device of the valve unit 33 and stops the blowing of air from the first outlet 12a and the second outlet 12b of the pipe 12. Thereby, each conduction pin 13 falls, the air receiving part 13a hits the 1st blowing port 12a of the piping 12, and is hold | maintained by the said piping 12 (FIG.3 and FIG.4). In addition, the continuity determination unit 40 transmits a control signal, stops the compression of air by the compressor 31, and ends the continuity test.

  According to the above-described embodiment, the conduction pin 13 is pressed against and brought into contact with the terminal fitting 103 by air pressure. Since it did in this way, by using the pressure of air, in each continuity test, in order to ensure the conduction between the conduction pin 13 and the terminal fitting 103, the conduction pin 13 is connected to the terminal fitting. It can be pressed against 103 and brought into contact. Therefore, deformation and damage of the terminal fitting 103 can be effectively suppressed. Moreover, since there is no deterioration like a coil spring, the conduction pin 13 can always be brought into contact with the terminal fitting 103 with a constant force, and therefore a constant quality can be maintained.

  Further, according to the above-described embodiment, the pipe 12 is provided with the second air outlet 12b that blows out air toward the peripheral wall 13c, and the peripheral wall 13c is caused by the pressure of the air blown out from the second air outlet 12b. Is pressed, and the peripheral wall 13 c is pressed against the pipe 12. For this reason, since the attitude | position of the conduction | electrical_connection pin 13 is corrected so that the blowing direction of the air from the 1st blowing port 12a may be corrected, the stability of the contact with the conduction | electrical_connection pin 13 and the terminal metal fitting 103, the terminal metal fitting 103, and the piping 12 The stability of contact with can be achieved.

  Further, according to the embodiment described above, the second outlet 12 b is provided on the side surface of the pipe 12. As a result, the peripheral wall 13c can be easily pressed against the pipe 12.

  In the above-described embodiment, the second outlet 12b is provided on the side surface of the pipe 12, but the present invention is not limited to this. For example, it is conceivable to provide a pipe 12 as shown in FIG. The pipe 12 has a pipe body 12d provided with a first outlet 12a at an end, and a branch pipe 12e branched from the pipe body 12d and provided with a second outlet 12b at an end thereof. doing. The end of the pipe body 12d is inserted into the peripheral wall 13c. On the other hand, the end of the branch pipe 12e is disposed outside the peripheral wall 13c, and the second outlet 12b is provided to face the outer surface of the peripheral wall 13c (the surface on the side away from the pipe body 12d).

  According to the above configuration, the peripheral wall 13c is pressed against the pipe 12 by moving in the horizontal direction from the second outlet 12b to the position where the conduction pin 13 contacts the pipe 12 due to the pressure of air. More specifically, a portion of the peripheral wall 13c that receives air from the second outlet 12b is pressed so as to approach the pipe 12, and a portion of the peripheral wall 13c that receives air is pressed against the pipe.

  According to this, the peripheral wall 13c can be easily pressed against the pipe 12 simply by providing the branch pipe 12e.

  In this case, the standing wall of the conduction pin 13 does not need to be provided in a cylindrical shape like the peripheral wall 13c. The standing wall only needs to be erected downward from the air receiving portion 13a of the conduction pin 13, and may be constituted of, for example, a standing wall piece erected downward from the air receiving portion 13a.

  In addition, according to the above-described embodiment, the conductive pin 13 is pulled away from the terminal fitting 103 by dropping the conductive pin 13 by gravity. However, the present invention is not limited to this, for example, the end of the pipe 12 It is good also as a structure which attracts | sucks the conduction | electrical_connection pin 13 and draws away from the terminal metal fitting 103 by inhaling air from.

  In the above-described embodiment, the inspection jig body 11 is configured to indirectly hold the terminal fitting 103 by holding the connector 105 (that is, the connector housing 104), but is not limited thereto. Instead, for example, in the wire harness in which the terminal fitting 103 is not accommodated in the connector housing 104, the inspection jig body 11 may be configured to hold the terminal fitting 103 directly.

  In the above-described embodiment, the conduction pin 13 of the continuity inspection jig 10 is brought into contact with each of the terminal fittings 103 provided at both ends of the electric wire 102. However, the present invention is not limited to this. Absent. For example, the conductive pin 13 is brought into contact with the terminal fitting 103 provided at one end of the electric wire 102, and the conductive pin 13 of another configuration is brought into contact with the terminal fitting 103 provided at the other end. It is good.

  In the above-described embodiment, the terminal fitting 103 is a female terminal. However, the terminal fitting 103 is not limited to this and may be a male terminal.

  In the embodiment described above, the pin main body 13b is fixed to the peripheral wall 13c at one end so that one end stands above the air receiving portion 13a. However, the present invention is not limited to this. The pin body 13b may protrude from the air receiving portion 13a.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

1 Continuity Inspection Device 10 Continuity Inspection Jig 11 Inspection Jig Body (Jig Body)
12 piping 12a 1st outlet 12b 2nd outlet 12d piping main body 12e branch piping 13 conduction pin 13a air receiving part 13b pin main body 13c peripheral wall (standing wall)
40 Continuity determination unit (conduction determination means)
101 Wire harness (conductivity test target)

Claims (5)

A continuity inspection jig used for continuity inspection of a continuity inspection object,
A jig body for holding the continuity test object;
A pipe for blowing out air from a first outlet provided at the end;
An air receiving portion for receiving air blown out from the first outlet, a pin main body that comes close to and comes into contact with the continuity test object by the pressure of the air received by the air receiving portion, and from the first outlet A conduction pin having a standing wall standing from the air receiving portion in the direction opposite to the air blowing direction,
The piping is provided with a second outlet for blowing air toward the standing wall,
The continuity inspection jig, wherein the standing wall is pressed by the pressure of the air blown out from the second outlet and the standing wall is pressed against the pipe. The standing wall is provided in a cylindrical shape,
The pipe is inserted into the cylindrical standing wall,
The continuity inspection jig according to claim 1, wherein the second outlet is provided on a side surface of the pipe so as to blow out the air toward an inner side surface of the standing wall. The pipe has a pipe main body provided with the first outlet at an end, and a branch pipe branched from the pipe main body and provided with the second outlet at an end thereof.
2. The continuity inspection jig according to claim 1, wherein the branch pipe is provided so that air from the second blow-out port is directed to a surface of the standing wall on a side away from the pipe main body. . A continuity testing device used for continuity testing of a continuity test target,
The continuity inspection jig according to any one of claims 1 to 3,
And a continuity determining means for inspecting the continuity of the continuity test object through the continuity pin. A continuity test method for performing a continuity test on a continuity test target,
Using the continuity inspection jig according to any one of claims 1 to 3, a holding step of holding the continuity inspection object in the jig body of the continuity inspection jig,
An air control step of sending air into the pipe;
A continuity determination step of determining continuity of the continuity test target through the continuity pin.

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