JP2017168399A - Grounding device with detection device and clip device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve authenticity of confirmation that a subject is grounded.SOLUTION: A ground device includes: a ground side terminal 14; and a first conductive claw member 22 and a conductive second claw member 23 that are provided on a clip main body 21 energized to a close direction and a tip end part of the clip main body, and includes: a clip device 11 that is constructed by conducting both first and second claw members when sandwiching a subject without conducting each other when the subject is sandwiched by them, a ground side track 12a for connecting between the first claw part and the ground side terminal; and a detection side track 12b for connecting the first claw part and the ground side terminal, in which a notification member is provided. When sandwiching the subject by the first and second claw members, the subject is connected to the ground side terminal by the ground side track. Both ends of the detection side track are closed by the ground side track, and the notification member performs notification.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a grounding device with a detection device and a clip device used for grounding a conductive object.

  2. Description of the Related Art Conventionally, there has been proposed a grounding device (grounding device) with a detecting device that is used for grounding (grounding) a conductive object and that can detect and confirm that the grounding is performed.

  That is, in Patent Document 1, an auxiliary electrode is provided in parallel near the tip of the grounding rod, and a confirmation is made when the grounding rod and the auxiliary electrode come into contact with and contact the high voltage box, which is the grounding object. An apparatus in which an indicator lamp is lit is disclosed.

  Further, in Patent Document 2, a mounting clip including a first clamping member and a second clamping member made of a conductive material such as metal is used, and an object is sandwiched between the first clamping member and the second clamping member. A device is disclosed in which a current flows through the detection-side wiring and a confirmation indicator lamp is lit.

JP-A-9-219226 JP 2011-48090 A

  However, in any of the devices described above, there is a problem in the certainty for confirming that the device is grounded.

  That is, in the apparatus of Patent Document 1, since the grounding rod and the auxiliary electrode arranged in parallel contact and contact the object by their own weights, there is an obstacle or oil is attached to the surface of the object. In such a case, the auxiliary electrode may not be electrically connected to the object. In that case, it is not possible to confirm whether the high voltage box is grounded by the grounding rod without the indicator lamp being lit.

  Further, the device of Patent Document 2 has a structure in which the first holding member and the second holding member are in contact with each other when the mounting-side clip is in a free state, that is, when an object is not held. Therefore, even when the attachment is removed for some reason from the state in which the object is sandwiched between the attachment side clips, the first and second clamping members come into contact with each other, and the indicator lamp is lit. To do. For this reason, it cannot be said that the grounding is reliable only because the indicator lamp is turned on, and the actual mounting state of the wearing side clip must always be confirmed.

  Further, in the device of Patent Document 2, since the first clamping member and the second clamping member are in contact with each other in the free state, a switch is provided to prevent the battery for lighting the indicator lamp from being consumed. Therefore, when the switch is forgotten to be turned on, the indicator lamp does not light even if the switch is grounded. When the switch is turned on when not in use, the battery is consumed and the use cannot be confirmed.

  As described above, there has been a problem in the certainty of confirmation that the object is grounded.

  The present invention has been made in view of the above-described problems, and an object thereof is to improve the certainty of confirming that an object is grounded.

  A grounding device according to an embodiment of the present invention is a grounding device with a detecting device used for grounding a conductive object, and a grounding terminal connected to the grounding side and a biasing force in a closing direction. A clip body and a conductive first claw member and a second claw member provided at the tip of the clip body, and the first claw member and the second claw member are And connecting the first claw member and the ground-side terminal to a clip device configured to be electrically connected to each other when the object is sandwiched without being electrically connected to each other. And a detection side line provided with a notification member for connecting between the second claw member and the ground side terminal, and the first claw member When the object is sandwiched between the second claw members, the object There is connected to the ground side terminal by the ground side line, the notification member is configured to make notification both ends of the detection-side line is closed by said ground side line.

  A clip device according to an embodiment of the present invention includes a clip body biased in a closing direction, and a conductive first claw member and a second claw member provided at a distal end portion of the clip body. The first claw member and the second claw member are configured not to conduct each other when the object is not sandwiched between them, and to conduct each other when the object is sandwiched. Is done.

  According to the present invention, it is possible to improve the certainty of confirmation that the object is grounded.

It is a figure showing the composition of the outline of the grounding device concerning the embodiment of the present invention. It is a figure which shows the circuit structure of a grounding apparatus. It is a perspective view which shows the external appearance of the clip apparatus used for a grounding apparatus. It is a perspective view which shows the open state of a clip apparatus. It is a side view which shows the open state of a clip apparatus. It is a front view which shows the open state of a clip apparatus. It is a figure which shows the state which the clip apparatus pinched | interposed the plate-shaped target object. It is a figure which shows the state which the clip apparatus pinched the edge of the can. It is a figure which shows the example of arrangement | positioning of the main nail | claw piece. It is a figure which shows the schematic structure of the grounding apparatus of other embodiment. It is a figure which shows the circuit structure of the grounding apparatus of other embodiment. It is a figure which shows the example of the usage method of a grounding apparatus.

[Configuration of grounding device]
FIG. 1 shows a schematic configuration of a grounding device 1 according to an embodiment of the present invention, and FIG. 2 shows an example of a circuit configuration of the grounding device 1.

  1 and 2, the grounding device 1 is a grounding device (grounding device) with a detection device used for grounding (grounding) a conductive object TB.

  The grounding device 1 includes a clip device 11, a line L12 including an electric wire 12, and a detection box 13.

  The clip device 11 includes a clip body 21 that is biased in the closing direction (M1 direction), a conductive first claw member 22 and a second claw member 23 provided at the tip of the clip body 21. The first claw member 22 and the second claw member 23 are configured not to conduct each other when the object TB is not sandwiched therebetween, but to conduct to each other when the object TB is sandwiched.

  The electric wire 12 is a display for connecting the ground side electric wire 12a for connecting the first claw member 22 and the ground side terminal 14 and the second claw member 23 and the ground side terminal 14 to each other. And a detection-side electric wire 12b provided with a notification member including a lamp 71 and a power source 73. The ground side electric wire 12a constitutes a part of the ground side line L12a, and the detection side electric wire 12b constitutes a part of the detection side line L12b.

  The detection box 13 has a box shape made of metal or synthetic resin, and a resistor 72, a power source 73, an indicator lamp 74, an operation switch 75, a resistor 76, and the like are accommodated therein.

  An electric wire 12 including a ground side electric wire 12a and a detection side electric wire 12b is drawn into the detection box 13, and a ground side terminal 14 connected to the ground side is provided on the surface of the detection box 13.

  In the present embodiment, the ground side terminal 14 is of a type in which the end of the ground wire 15 is fastened with a screw and connected to the ground side. Various types such as a type of connection by a connector may be used. In this case, the grounding wire 15 is connected to a grounding rod (grounding rod) buried in the ground, a grounding tab or a building structure, and is grounded.

  The ground wire 15 may be provided with a clip at one end or both ends thereof. In this case, the ground wire 15 is connected by sandwiching the ground side terminal 14 with a clip. Further, the clip at the other end of the ground wire 15 can be connected with a building structure, a water pipe, or the like sandwiched therebetween.

  Alternatively, the ground side terminal 14 may be provided inside the detection box 13 and a ground side terminal wire connected to the ground side terminal 14 may be drawn from the surface of the detection box 13. In this case, a clip or the like may be provided at the tip of the ground side terminal wire with the ground wire 15 or a building structure instead of the ground wire 15 or a water pipe interposed therebetween. In short, it is only necessary that the ground side terminal 14 which is the end of the ground side line L12a can be grounded.

  In the grounding device 1, when the object TB is sandwiched between the first claw member 22 and the second claw member 23, the object TB is connected to the ground side terminal 14 by the ground side line L12a, and the detection side Both ends of the line L12b are closed by the ground side line L12a, and the indicator lamp 71 is lit to notify.

In the present embodiment, a battery is used as the power source 73. When the remaining battery level is sufficient, the operation lamp 75 is pressed to turn on the indicator lamp 74. Thereby, the operation of the power source 73, that is, the confirmation of the remaining battery level (battery check) can be performed. Note that LEDs are used as the light emitters of the indicator lamps 71 and 74, and the resistors 72 and 76 are for limiting the current.
[Structure and operation of clip device]
Next, the structure and operation of the clip device 11 will be described with reference to FIGS.

  3 is an external view of the clip device 11, FIG. 4 is a perspective view showing the clip device 11 in an open state, FIG. 5 is a side view showing the clip device 11 in an open state, and FIG. FIG. 7 is a front view showing the opened state of the device 11, FIG. 7 is a view showing a state where the clip device 11 sandwiches the plate-like object TB1, and FIG. 8 is a view of the can in which the clip device 11 is the object TB2. FIG. 9 shows an example of the arrangement of the main claw pieces 31 and 41 in a state where the edges are sandwiched.

  In these drawings, the clip device 11 includes a clip body 21, a first claw member 22, a second claw member 23, a shaft screw 25, a shaft tube 26, a spring 27, and the like.

  The clip body 21 is composed of two clip members 21a and 21b made of a metal material having good conductivity. The clip members 21a and 21b are provided so as to be rotatable about the shaft tube 26, and are urged in a closing direction (M1 direction) by a spring 27 supported by the shaft tube 26. A shaft screw 25 passes through the shaft tube 26, and washers 25 b and 25 c that are in contact with the end surface of the shaft tube 26 are mounted and fixed by nuts 25 a that are screwed into the shaft screw 25.

  The first claw member 22 and the second claw member 23 are provided at the tip of the clip body 21. The first claw member 22 and the second claw member 23 intersect each other in the opening / closing direction (M1 direction and the opposite direction), but are perpendicular to the opening / closing direction and perpendicular to the longitudinal direction (M3 direction). Nail pieces 31 and 41 that do not come into contact with each other when the clip device 11 is closed by being arranged with a gap in the direction (M2 direction) (see FIG. 9A). The pieces 32 and 42 are provided.

  Here, the claw pieces 31 and 41 are main claw pieces, and the claw pieces 32 and 42 are sub-claw pieces. The sub claw pieces 32 and 42 are for sandwiching the edge of the can, which is the object TB2, and are arranged on the distal end side of the clip device 11 with respect to the main claw pieces 31 and 41.

  When the clip body 21 is closed by the spring 27, the main claw piece 31 of the first claw member 22 and the main claw piece 31 of the second claw member 23, or the sub claw piece 32 of the first claw member 22. And the sub claw piece 42 of the second claw member 23 come into contact with and sandwich the object TB, thereby being electrically connected to the object TB.

  Although the spring 27 is used to bias the clip body 21 in the closing direction, the spring 27 may not be used. For example, a toggle mechanism or the like that maintains the state in which the object TB is sandwiched may be used, and as a result, the clip body 21 may be biased in the closing direction.

  In this embodiment, the main claw pieces 31 and 41 are made of a rod-like body made of a metal material having good conductivity, and the sub-claw pieces 32 and 42 are made of a plate-like body made of a metal material. In the main claw pieces 31 and 41, the tip of the rod-like body has a conical shape (conical shape), whereby the contact area of the tip becomes small, and an oil film or paint on the surface of the object TB can be easily formed. The main claw pieces 31 and 41 can be reliably connected to the object TB. As the main claw pieces 31 and 41, for example, hexagon socket bolts are used.

  Regarding the sub claw pieces 32 and 42, one sub claw piece 32 is formed integrally with the clip member 21a, and the other sub claw piece 42 is formed separately from the clip member 21b and is formed in a substantially L shape. Is indirectly attached to the clip member 21b via a substrate 45 described later.

  In the first claw member 22 and the second claw member 23, one main claw piece 41 of the second claw member 23 which is one side thereof, and the main claw piece 31 of the first claw member 22 which is the other side thereof. Is two. That is, the main claw piece 31 of the first claw member 22 includes two main claw pieces 31a and 31b.

  The second claw member 23 has one sub claw piece 42 and the first claw member 22 has two sub claw pieces 32. That is, the sub claw piece 32 of the first claw member 22 includes two sub claw pieces 32a and 32b.

  That is, in the main claw pieces 31, 41, the object TB is sandwiched between the central main claw piece 41 and the main claw pieces 31a, 31b on both sides thereof, and in the sub claw pieces 32, 42, the central sub claw piece 42 and its Since the object TB is sandwiched between the sub-claw pieces 32a and 32b on both sides, the object TB can be securely sandwiched.

  In the second claw member 23, the main claw piece 41 and the sub claw piece 42 are attached to a substrate 45 made of an insulating material such as ceramics or synthetic resin, and thereby indirectly attached to the clip member 21b. .

  The substrate 45 has a rectangular plate shape, is disposed along the longitudinal direction (M3 direction) on the inner side (back surface side) of the clip member 21b, and is fixed to the clip member 21b with screws 46. The clip member 21b is provided with a notch 211 at a location corresponding to the main claw piece 41 and the sub claw piece 42, whereby the main claw piece 41 and the sub claw piece 42 come into contact with the clip member 21b. The clip member 21b is held in an insulated state.

  The front end of the main claw pieces 31a and 31b of the first claw member 22 is brought into contact with the substrate 45, so that the clip device 1 is not further closed in the closing direction (M1 direction). It is a stopper.

  That is, in the main claw pieces 31 and 41 and the sub claw pieces 32 and 42, the length in the closing direction of the clip body 21 is longer in the main claw pieces 31 and 41. That is, the distance between the main claw pieces 31 and 41 in the closing direction is narrower than that of the sub claw pieces 32 and 42.

  Therefore, when the object TB is sandwiched between the main claw pieces 31 and 41 as shown in FIG. 7, the tips of the sub claw pieces 32 and 42 are spaced apart in the closing direction. In addition, when the object TB is not sandwiched as shown in FIG. 3, the tips of the main claw pieces 31a and 31b come into contact with the substrate 45 to serve as stoppers, and the sub claw pieces 32 and 42 come into contact with each other. There is no. That is, in this state, the sub claw piece 42 enters the gap between the two sub claw pieces 32a and 32b, but they do not contact each other.

  By the way, the outer peripheral surfaces of the main claw pieces 31 and 41 are screws, and are fixed by nuts 33a, b, 34a, b, 43a, and b that are screwed into the screws, respectively. That is, the main claw pieces 31a and 31b are fixed by the two nuts 33a, b, 34a and b, respectively, and the main claw piece 41 is fixed by the two nuts 43a and b, respectively. By adjusting the position in the opening / closing direction according to the closing condition of the nuts 33a, b, 34a, b, 43a, b, the protruding lengths of the main claw pieces 31a, 31b, 41, that is, the positions of the tips in the closing direction are adjusted. can do.

  The sub claw piece 42 is formed in a substantially L-shape and has a hole. The hole fits into the main claw piece 41 and is fixed to the substrate 45 integrally with the main claw piece 41 by nuts 43a and 43b. Has been.

  Such clip members 21a, 21b, sub-claw pieces 42 and the like can be produced by, for example, pressing a metal plate.

  Now, the indicator lamp 71 is attached to the clip member 21b. That is, a light emitting body 71 a such as an LED is attached to the circuit board 47, and the circuit board 47 is attached to the surface of the board 45 by screws 48. The light emitter 71 a attached to the circuit board 47 is disposed so as to face the hole 212 provided in the clip member 21 b and the board 45, and a transparent or translucent display cover 71 b is attached on the hole 212. Therefore, when the light emitter 71a emits light, the user can confirm the light emission via the display cover 71b.

  In the present embodiment, the electric wire 12 is a two-core cable in which the ground side electric wire 12a and the detection side electric wire 12b are covered with a coating. One end side of the electric wire 12 is fixed to the clip member 21 a by a pressing member 51 and a screw 52. The tip of the ground side electric wire 12 a is connected and fixed to the clip member 21 a by the pressing member 53 and the screw 54, and is thus connected to the first claw member 22.

  The tip of the detection-side electric wire 12b is connected to the circuit board 47 described above, and is connected to one electrode of the light emitter 71a by the wiring of the circuit board 47. The other electrode of the light emitter 71 a is connected to the second claw member 23 including the main claw piece 41 and the sub claw piece 42 through the wiring of the circuit board 47.

After the other end side of the electric wire 12 is drawn into the detection box 13, the tip of the ground side electric wire 12 a is connected to the ground side terminal 14, and the tip of the detection side electric wire 12 b is connected to one electrode of the resistor 72. An appropriate circuit board or the like is used in the detection box 13 for holding and connecting circuit elements such as the resistors 72 and 76. In this way, the circuit shown in FIG. 2 is formed.
[Usage method and operation of grounding device]
Next, the usage method and operation of the grounding device 1 will be described.

  As shown in FIG. 1, the ground side terminal 14 of the detection box 13 is grounded by using a ground wire 15 or the like, and is connected with the object TB sandwiched by the clip device 11. At this time, the object TB may be sandwiched between the main claw pieces 31 and 41 or the sub claw pieces 32 and 42, but in the case of a normal object TB1 such as a plate material or a mold material having a flat portion, FIG. What is necessary is just to pinch with the main nail | claw pieces 31 and 41 as shown. Further, in the case of the object TB2 which is difficult to be sandwiched between the main claw pieces 31 and 41, such as an oil can or a paint can, because it has no or few flat portions, it can be sandwiched between the sub claw pieces 32 and 42 as shown in FIG. Good.

  Thus, by pinching the object TB with the clip device 11, the main claw pieces 31, 41 or the sub claw pieces 32, 42 come into contact with the surface of the object TB and are electrically connected. Thereby, the target object TB is grounded via the first claw member 22 and the ground side electric wire 12a. At the same time, the first claw member 22 and the second claw member 23 are electrically connected via the object TB, and a current flows through the indicator lamp 71 to light up.

  Therefore, the user can easily confirm that the object TB is grounded by confirming that the indicator lamp 71 is turned on. Further, when the clip device 11 is in its free state, that is, when the object TB is not sandwiched, the first claw member 22 and the second claw member 23 do not contact each other, so that the object TB is not grounded. Regardless, it is possible to prevent the indicator lamp 71 from being turned on.

  Therefore, even in a deep place where the state of sandwiching the object TB with the clip device 11 cannot be directly confirmed, the presence or absence of grounding can be reliably confirmed by the presence or absence of the indicator lamp 71. The certainty of confirming that TB is grounded is improved.

  In the above-described embodiment, in order to prevent the object TB sandwiched between the clip devices 11 from coming into direct contact with the clip member 21b, the protruding length in the closing direction of the ear portions 213 provided on both sides of the distal end portion of the clip member 21b. Keep it as small as possible. Alternatively, an insulating material may be attached to the edge of the ear 213, or the entire ear 213 or the clip member 21b may be manufactured using an insulating material such as a synthetic resin.

  In the above-described embodiment, when the object TB is sandwiched by the clip device 11, the first claw member 22 and the second claw member 23 may be used at the same time. That is, for example, when the tubular object TB is sandwiched, the main claw pieces 31 and 41 and the sub claw pieces 32 and 42 may be held so that all or part of them touch the object TB.

  In the above-described embodiment, when the clip device 11 sandwiches the thick object TB1 as shown in FIG. 7, the tips of the main claw pieces 31, 41 strongly abut against the surface of the object TB1 and hold it. An appropriate gripping force can be obtained. Therefore, the posture of the clip device 11 does not change greatly depending on its own weight or normal external force. However, when the positions of the tips of the sub claw pieces 32 and 42 are kept close to the positions of the tips of the main claw pieces 31 and 41 and the object TB is gripped by the main claw pieces 31 and 41, the sub claw pieces 32 and 42 The gripping force of the clip device 11 can be further increased if the tip is brought into contact with the object TB at the same time. Alternatively, even when the tips of the auxiliary claw pieces 32 and 42 do not contact the object TB at the same time, when the posture of the clip device 11 is about to change, the auxiliary claw pieces 32 and 42 serve as a guide and the posture of the clip device 11 is changed. Can be stabilized.

In the above-described embodiment, the positions of the main claw pieces 31 and 41 are arranged so as to be shifted from each other in the left-right direction of the first claw member 22, that is, the M2 direction as shown in FIG. As shown in B), the clip device 11 may be arranged so as to be shifted from each other in the front-rear direction, that is, the M3 direction. Further, as shown in FIG. 9C, the main claw piece 41 has two main claw pieces 41a and 41b, and these main claw pieces 41a and 41b and the main claw pieces 31 and 41 are connected to each other in the left-right direction and the front-rear direction. It may be arranged in a shifted manner.
[Grounding device of other embodiment]
Next, a grounding device 1B according to another embodiment will be described.

  FIG. 10 shows a schematic configuration of a grounding device 1B according to another embodiment, and FIG. 11 shows a circuit configuration of a grounding device 1B according to another embodiment.

  10 and 11, the grounding device 1B includes a clip device 11, a line L12B including an electric wire 12, and a detection box 13B. Since the clip device 11 and the electric wire 12 are the same as those of the grounding device 1 described above, description thereof is omitted here. Differences between the line L12B and the detection box 13B from the line L12 and the detection box 13 described above will be described.

  The detection box 13B is provided with two ground-side terminals 14a and 14b that are electrically independent from each other. The ground side terminal 14a is a “ground side terminal corresponding to the ground side line”, and the ground side terminal 14b is a “ground side terminal corresponding to the detection side line”.

  As shown in FIG. 11, one ground side terminal 14a is connected to the ground side line L12Ba, and the other ground side terminal 14b is connected to the line L12Bb1 on one end side of the power source 73 in the detection side line L12Bb. That is, in the grounding device 1B, the ground side line L12Ba and the detection side line L12Bb are independent from each other, and the respective end portions thereof are separately connected to the ground side terminals 14a and 14b.

  The ground side terminal 14a is connected to the ground side by a ground wire 15a, and the ground side terminal 14b is connected to the ground side by a ground wire 15b. That is, the two ground-side terminals 14a and 14b are respectively connected to the ground side by two independent ground wires 15a and 15b.

  For example, one end of the ground wire 15a is connected to the ground side terminal 14a with a screw or a clip, and the other end is connected to the ground side such as a building structure. Then, one end of the ground wire 15b is connected to the ground side terminal 14b with a screw or a clip, and the other end is connected to the ground side such as a building structure. A relay terminal box may be provided in the middle of the ground wires 15a and 15b. When connecting the ground wires 15a and 15b to the ground side, it is preferable to connect the ends of the ground wires 15a and 15b separately to separate terminals or the like provided at the same place as the ground side.

  In order to use the grounding device 1B, the grounding terminals 14a and 14b of the detection box 13B are grounded using two independent grounding wires 15a and 15b, etc., and the clip device 11 sandwiches and connects the object TB.

  Thereby, the object TB is grounded via the ground side line L12Ba and the grounding wire 15a, and the first claw member 22 and the second claw member 23 are electrically connected to the object TB via the object TB. Is done. As a result, both ends of the detection side line L12Bb are closed by the ground side line L12Ba and the grounding wires 15a and 15b, and a current flows through the indicator lamp 71 to light up.

  In the grounding device 1 described above, the indicator lamp 71 may be lit even when the grounding side terminal 14 is not connected to the grounding side. However, in the grounding device 1B here, two grounding devices are used. The side terminals 14a and 14b are not lit unless connected to a building structure or the like.

  As described above, when the grounding device 1B is used, the grounding device 1B is reliably grounded via the grounding line L12Ba and the dedicated grounding wire 15a. If the connection of the grounding wire 15a is disconnected or defective, the indicator lamp 71 is not lit, so that the indicator lamp 71 is reliably prevented from being lit even though the object TB is not grounded. The

Therefore, the presence / absence of grounding can be reliably confirmed by the presence / absence of lighting of the indicator lamp 71, and the certainty of confirmation that the object TB is grounded is further improved.
[Usage example of grounding device]
FIG. 12 shows an example of how to use the grounding device 1B.

  In FIG. 12, a drum can TB3 that is an object is placed on a carriage 60 that is a weighing carriage with wheels. The frame base 61 of the carriage 60 is made of metal, but in this state, the drum can TB3 is not grounded or is incompletely grounded.

  A detection box 13B is attached to the upper end of the metal support 62 provided on the carriage 60, and a terminal box 63 is attached to the center. The ground side terminal 14a of the detection box 13B is electrically connected to the terminal box 64 provided on the building structure 65 via the ground wires 15a1 and 15a2, and the ground side terminal 14b is electrically connected to the terminal box 64 provided on the building structure 65. .

  In FIG. 12, the ground wire 15a1 is connected to the ground side terminal 14a and the terminal box 63 by screws, and the ground wire 15a2 is connected to the terminal box 63 by clips and connected to the terminal box 64 by screws. The ground wire 15b1 is connected to the ground side terminal 14b by a clip, and is connected to the terminal box 64 by a screw.

  In the terminal boxes 63 and 64, two terminals are connected to each other inside. Two terminals of the terminal box 63 are electrically connected to the column 62. The frame base 61 is electrically connected to the support 62 by electric wires. The two terminals of the terminal box 64 are grounded via a metal structure 65.

  Thus, the ground side terminals 14a and 14b are grounded. In this state, when the edge of the drum can TB3 is sandwiched by the clip device 11, as described above, the drum can TB3 is grounded via the ground side line L12Ba and the ground wires 15a1 and 15a2, and together with this, the detection side line L12Bb. Are closed by the ground line L12Ba and the grounding wires 15a1, 15a2, and 15b1, and a current flows through the indicator lamp 71 to light it.

  That is, by connecting the three ground wires 15a1, 15a2, and 15b1 and sandwiching the edge of the drum can TB3 by the clip device 11, the drum can TB3 and the carriage 60 are grounded, and the ground can be reliably confirmed.

Also, instead of placing the drum can TB3 on the carriage 60, when the drum can TB3 is gripped by the drum overturning device and the drum can TB3 is tilted and overturned, the liquid inside is transferred to a fixed tank provided on the floor. In addition, it is possible to ground the drum can TB3 and the drum overturning device by making a similar connection with an appropriate electric wire, and reliably confirm the grounding.
[Others]
In the above-described embodiment, the indicator lamp 71 is used as the notification member. However, instead of or together with this, a member that generates and notifies a sound such as a buzzer or a melody, or other notification members may be used. Further, a protection element for absorbing overvoltage may be provided in parallel with the indicator lamp 71 or the power source 73. Circuit elements such as the resistor 72 and the power source 73 may be mounted inside the clip device 11. In this case, the detection box 13 may be omitted, and the tip end portions of the electric wires 12 that should be drawn into the detection box 13 may be collectively used as the ground-side terminal 14.

  In this case, a clip device having the same structure as that of the clip device 11 may be connected to the distal end portion of the electric wire 12 and used as the ground side terminals 14a and 14b. That is, the ground-side electric wire 12a of the electric wires 12 is connected to the first claw member of the clip device to be the ground-side terminal 14a, and the detection-side electric wire 12b is connected to the second claw of the clip device to be the ground-side terminal 14b. Connect to the member. In such a case, by sandwiching a building structure or the like with a clip device to be the ground side terminal 14a, the tip end portion of the ground side wire 12a and the tip end portion of the detection side wire 12b are connected to each other and grounded.

  In addition, main claw pieces 31 and 41, sub claw pieces 32 and 42, first claw member 22, second claw member 23, clip members 21a and b, clip device 11, electric wire 12, detection boxes 13 and 13B, grounding The configuration, structure, material, circuit, shape, number, arrangement, etc. of each part or the whole of the side terminals 14, 14a, 14b, the grounding wires 15a, 15b, or the grounding devices 1, 1B are appropriately changed in accordance with the gist of the present invention. can do.

1,1B Grounding device 11 Clip device 12 Electric wire 12a Grounding wire (grounding wire)
12b Detection side wire (Detection side line)
L12, L12B Lines L12a, L12Ba Ground side lines L12b, L12Bb Detection side lines 13, 13B Detection box 14 Ground side terminal 14a Ground side terminal (ground side terminal corresponding to the ground side line)
14b Ground side terminal (ground side terminal corresponding to the detection side line)
21 clip body 21a, b clip member 22 first claw member 23 second claw member 31, 31a, 31b main claw piece 32, 32a, 32b sub claw piece 41 main claw piece 42 sub claw piece 45 board 71 indicator lamp ( Notification member)
73 Power supply (notification member)
74 Indicator lamp 75 Operation switch TB, TB1, TB2 Target object TB3 Drum can (target object)

A grounding device according to an embodiment of the present invention is a grounding device with a detecting device used for grounding a conductive object, and a grounding terminal connected to the grounding side and a biasing force in a closing direction. A clip body and a conductive first claw member and a second claw member provided at the tip of the clip body, and the first claw member and the second claw member are And connecting the first claw member and the ground-side terminal to a clip device configured to be electrically connected to each other when the object is sandwiched without being electrically connected to each other. And a detection side line provided with a notification member for connecting between the second claw member and the ground side terminal, and the first claw member When the object is sandwiched between the second claw members, the object Is connected to the ground side terminal by but the ground line, the notification member both ends of the detection-side line is closed by said ground side line is configured to perform the notification, the first pawl The member and the second claw member are respectively a main claw piece made of a rod-like body for sandwiching the object, and a can which is the object by being disposed closer to the distal end side of the clip device than the main claw piece And a sub-nail piece made of a plate-like body for sandwiching the edge of the.

A clip device according to an embodiment of the present invention includes a clip body biased in a closing direction, and a conductive first claw member and a second claw member provided at a distal end portion of the clip body. The first claw member and the second claw member are configured not to conduct each other when the object is not sandwiched between them, and to conduct each other when the object is sandwiched. The first claw member and the second claw member are respectively a main claw piece made of a rod-like body for sandwiching the object, and a front end side of the clip device with respect to the main claw piece. And a sub-claw piece made of a plate-like body for sandwiching the edge of the can which is the object.

The present invention has been made in view of the above-described problems, and an object thereof is to improve the certainty of confirming that an object is grounded.

A grounding device according to an embodiment of the present invention is a grounding device with a detecting device used for grounding a conductive object, and a grounding terminal connected to the grounding side and a biasing force in a closing direction. A clip body and a conductive first claw member and a second claw member provided at the tip of the clip body, and the first claw member and the second claw member are And connecting the first claw member and the ground-side terminal to a clip device configured to be electrically connected to each other when the object is sandwiched without being electrically connected to each other. And a detection side line provided with a notification member for connecting between the second claw member and the ground side terminal, and the first claw member When the object is sandwiched between the second claw members, the object Is connected to the ground-side terminal by the ground-side line, and both ends of the detection-side line are closed by the ground-side line so that the notification member performs notification, and the first claw The member and the second claw member are respectively a main claw piece made of a rod-like body for sandwiching the object, and a can which is the object by being disposed closer to the distal end side of the clip device than the main claw piece And a sub-nail piece made of a plate-like body for sandwiching the edge of the.

A clip device according to an embodiment of the present invention includes a clip body biased in a closing direction, and a conductive first claw member and a second claw member provided at a distal end portion of the clip body. The first claw member and the second claw member are configured not to conduct each other when the object is not sandwiched between them, and to conduct each other when the object is sandwiched. The first claw member and the second claw member are respectively a main claw piece made of a rod-like body for sandwiching the object, and a front end side of the clip device with respect to the main claw piece. And a sub-claw piece made of a plate-like body for sandwiching the edge of the can which is the object.

Claims (13)

A grounding device with a sensing device used to ground a conductive object,
A ground terminal connected to the ground side;
A clip body biased in a closing direction; and a conductive first claw member and a second claw member provided at a distal end portion of the clip body, the first claw member and the second claw A clip device configured to be electrically connected to each other when the object is sandwiched between members without being electrically connected to each other when the object is not sandwiched between them;
A ground line for connecting between the first claw member and the ground terminal;
A detection-side line provided with a notification member for connecting between the second claw member and the ground-side terminal;
Have
When the object is sandwiched between the first claw member and the second claw member, the object is connected to the ground side terminal by the ground side line, and both ends of the detection side line are The notification member is configured to be notified by being closed by the ground-side line,
A grounding device with a detecting device. The first claw member and the second claw member intersect with each other in the opening / closing direction, but are displaced from each other in a direction perpendicular to the opening / closing direction so that they contact each other when the clip device is closed. Without claw pieces, these claw pieces abut against the object and sandwich the object,
A grounding device with a detection device according to claim 1. The first claw member and the second claw member are arranged as a claw piece, a main claw piece for sandwiching the object, and a tip side of the clip device with respect to the main claw piece, respectively. A sub-nail piece for sandwiching the edge of the can,
A grounding device with a detection device according to claim 1 or 2. The main claw piece is made of a rod-like body, and the sub claw piece is made of a plate-like body.
A grounding device with a detection device according to claim 3. The outer surface of the main claw piece is a screw, and is directly or indirectly attached to the clip body in a state in which the protruding length can be adjusted by a nut screwed into the screw.
A grounding device with a detection device according to claim 4. In the first claw member and the second claw member, at least the main claw piece on one side is attached to a substrate made of an insulating material, and the tip of the main claw piece on the other side abuts on the substrate. This serves as a stopper in the closing direction of the clip device.
A grounding device with a detection device according to any one of claims 3 to 5. In the first claw member and the second claw member, one main claw piece on one side is one main claw piece on the other side and two sub claw pieces on one side are on the other side. There are two auxiliary nail pieces,
A grounding device with a detection device according to any one of claims 3 to 6. The notification member comprises an indicator lamp and a power source,
The indicator lamp is attached to the clip body,
A grounding device with a detection device according to any one of claims 1 to 7. A detection box for storing the power supply is provided,
In the detection box, a ground side electric wire constituting a part of the ground side line and a detection side electric wire constituting a part of the detection side line are drawn, and the ground side terminal is provided on the surface or the surface thereof. From the ground side terminal wire connected to the ground side terminal is drawn out,
A grounding device with a detection device according to claim 8. As the ground side terminal, a ground side terminal corresponding to the ground side line and a ground side terminal corresponding to the detection side line are provided independently of each other,
When the object is sandwiched between the first claw member and the second claw member, the object is connected to a ground side terminal corresponding to the ground side line by the ground side line.
A grounding device with a detection device according to claim 1. A clip device for electrically connecting across a conductive object,
A clip body biased in the closing direction;
A conductive first claw member and a second claw member provided at the tip of the clip body;
The first claw member and the second claw member are configured not to conduct each other when the object is not sandwiched between them, and to be conducted to each other when the object is sandwiched.
A clip device characterized by that. The first claw member and the second claw member intersect with each other in the opening / closing direction, but are displaced from each other in a direction perpendicular to the opening / closing direction so that they contact each other when the clip device is closed. Without claw pieces, these claw pieces abut against the object and sandwich the object,
The clip device according to claim 11. The first claw member and the second claw member are arranged as a claw piece, a main claw piece for sandwiching the object, and a tip side of the clip device with respect to the main claw piece, respectively. A sub-nail piece for sandwiching the edge of the can,
The clip device according to claim 11 or 12.

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