JP4098204B2 - Seal inspection device - Google Patents

Description

  The present invention relates to a seal inspection apparatus, and more particularly to a seal inspection apparatus for inspecting the sealing performance of a wire harness in which a number of electric wires are bundled.

  Among wire harnesses for automobiles, for example, there is a wiring harness that passes through a panel that partitions an automobile engine room and a vehicle compartment. When wiring a plurality of electric wires to the through hole of the panel, a rubber grommet is attached to the through hole of the panel, and the plurality of electric wires are wired through the grommet.

  Thus, in the state which wired the several electric wire through the grommet, in order to prevent the water immersion to the vehicle interior side, the clearance gap between electric wires is filled with a water stop agent, and the clearance gap between electric wires is sealed.

  Here, in order to prevent water intrusion to the passenger compartment side, the gap between the electric wires is sealed with a waterproofing agent and kept in a state, and the urethane sheet in which the gap between the electric wire bundle and the through hole is wound around the wire harness It is necessary to maintain a sealed state by the elasticity of the grommet and the elastic adhesion of the grommet.

  A seal inspection apparatus is known as an apparatus for inspecting the seal state. This seal inspection apparatus is provided with a water storage tank integrally on the upper part of an air tank, and has a through hole for attaching a grommet to a partition wall between the air tank and the water storage tank.

  When the sealability is inspected using this seal inspection device, after inserting a grommet into the through hole of the partition wall, water is supplied to the water storage tank and pressurized air is supplied to the air tank.

When the sealability of the wire harness attached to the grommet is insufficient, the pressurized air supplied to the air tank leaks into the water in the water storage tank through the poorly sealed portion, and rises as bubbles (for example, Patent Document 1). reference).
Japanese Unexamined Patent Publication No. 2000-241288

  However, in the conventional seal inspection device, since the water tank is integrally provided in the air tank, the operator attaches the grommet to the mounting hole of the partition wall in an unreasonable posture, making it difficult to attach the grommet. .

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a seal inspection apparatus capable of easily attaching a grommet.

In order to achieve the object described above, the present invention inspects a sealing state of a penetration portion of a wire harness in the grommet with respect to a grommet in which the wire harness is penetrated. A water storage tank rotatably attached by a hinge so as to be tilted upward, and the air tank and the water storage tank are communicated with each other at the bottom of the water storage tank, and the grommet is fitted from the water storage tank side. And a supply / exhaust means for supplying and discharging pressurized air to and from the air tank.

  In the seal inspection apparatus configured as described above, since the water storage tank is rotatably attached to the air tank, the water storage tank is rotated to a position where the grommet can be easily attached, and the grommet is attached to the water storage tank.

  Therefore, the operator can attach the grommet without taking an unreasonable posture.

  Further, the present invention is characterized in that a water supply / discharge means for supplying and discharging water to / from the water storage tank is provided.

  In the seal inspection apparatus configured as described above, water supply means is provided, so that water is easily supplied to the water storage tank and water is easily drained from the water storage tank. Therefore, it is possible to easily supply and discharge water without taking time.

  Furthermore, the present invention is characterized in that water is drained by tilting the water storage tank with respect to the air tank.

  In the seal inspection apparatus configured as described above, by draining the water storage tank by tilting, the water in the water storage tank can be drained in a large amount in a short time, and the time required for the seal inspection can be shortened. .

  In the present invention, the water tank includes a sub tank, and when the water tank is tilted from the inspection position mounted on the air tank to the attachment / detachment position, water in the water storage tank is stored in the sub tank, and the water storage tank is moved to the inspection position. In this case, the water in the sub tank is returned to the water storage tank.

In the seal inspection apparatus configured as described above, the water storage tank includes a sub tank, and water in the water storage tank is stored in the sub tank when the water storage tank is tilted to the attachment / detachment position. When the water tank is moved to the inspection position, the water in the sub tank is returned to the water tank.
Therefore, it is possible to store water in the sub-tank and reuse it, and to reduce the amount of water used, thereby reducing the cost for inspection.

  Moreover, since water can be quickly returned to the water storage tank by storing the water in the sub tank, the seal inspection time can be shortened and the productivity can be improved.

Furthermore, the present invention provides a seal inspection method for inspecting a seal state of a penetration portion of a wire harness using the seal inspection device according to claim 1, wherein the hinge is rotatably attached by a hinge so as to incline upward of the air tank. The water storage tank is disposed at an attaching / detaching position inclined at a predetermined angle with respect to the air tank, a grommet is fitted into the mounting hole of the water tank, the water tank is rotated and placed on the air tank at the inspection position, and the air supply / exhaust It is characterized in that pressurized air is supplied into the air tank by means.

  In the seal inspection method configured as described above, the water storage tank is disposed at an attachment / detachment position inclined at a predetermined angle with respect to the air tank, whereby the water storage tank is disposed at a position where the grommet can be easily attached, and the grommet is attached to the water storage tank. Install.

  Therefore, the operator can attach the grommet without taking an unreasonable posture.

    According to the present invention, there is an effect that the operator can easily attach the grommet to the water storage tank without taking an unreasonable posture.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view showing a first embodiment of a seal inspection apparatus according to the present invention, FIG. 2 is an explanatory view showing an example of attaching a grommet according to the first embodiment of the present invention, and FIG. 3 is a first view according to the present invention. It is explanatory drawing which shows the example of drainage of embodiment.

  As shown in FIG. 1, a seal inspection apparatus 10 according to a first embodiment of the present invention is attached to an air tank 11 and to be rotatable in the direction of an arrow AB through a hinge 12 above the air tank 11. The water tank 13, the bottom 14 of the water tank 13, the air tank 11 and the water tank 13 are formed so as to communicate with each other, the mounting hole 16 that allows the grommet 15 to be fitted from the water tank 13 side, and the air tank A supply / exhaust means 17 for supplying and discharging pressurized air to and from a storage tank 13 and a supply / discharge means 19 for supplying and discharging water 18 to and from a water storage tank 13 are provided.

  The grommet 15 is an example in which the wire harness 20 is penetrated, and the wire harness 20 is bundled with a plurality of electric wires 20A in a state in which a waterproofing agent (not shown) is filled between the plural electric wires 20A. The part is wound with a sealing material (penetrating part) 20B.

  In the air tank 11, an opening 22 facing the attachment hole 16 is formed in the upper part 21, and a sealing material 23 is provided outside the opening 22.

  By placing the bottom portion 14 of the water storage tank 13 on the sealing material 23, the gap between the bottom portion 14 of the water storage tank 13 and the upper portion 21 of the air tank 11 is sealed.

  The air tank 11 is provided with air supply / exhaust means 17. The air supply / exhaust means 17 connects an air supply pipe 26 connected to a compressor 25 into the air tank 11, and an on / off valve 27 is provided in the air supply pipe 26.

  Further, in the air supply / exhaust means 17, an air discharge pipe 28 is provided in the air tank 11, and an on / off valve 29 is provided in the air discharge pipe 28.

  The compressor 25 is driven with the on / off valve 27 of the air supply pipe 26 turned on and the on / off valve 29 of the air discharge pipe 28 turned off. Pressurized air is guided from the compressor 25 to the air supply pipe 26, and the guided pressurized air is supplied into the air tank 11 through the air supply pipe 26.

  The water storage tank 13 has a mounting hole 16 formed in the bottom portion 14 and an upper end 31 opened. The water storage tank 13 is provided with water supply / drainage means 19 for supplying and discharging water.

  The drainage means 19 is projected outward so that the upper side wall 32 on the hinge 12 side becomes a drainage port.

  Further, the water supply means 19 is connected to a water supply pipe 33 for supplying water to the side wall 32 of the water storage tank 13, a pump 34 is connected to the end of the water supply pipe 33, and the pump 34 is connected to the water supply tank 35. The water supply pipe is provided with an on / off valve 37.

  By turning on / off valve 37 of water supply pipe 33 and driving pump 34, water 18 is supplied from water supply tank 35 to water supply pipe 33, and water 18 led to water supply pipe 33 is supplied to water supply pipe 33. Is supplied to the water storage tank 13.

On the other hand, when the water 18 in the water storage tank 13 is discharged, the lock means 40 is removed and the water storage tank 13 is rotated in the direction of arrow A about the hinge 12. As a result, the water storage tank 13 is inclined, and the locking means 40 for discharging the water 18 in the water storage tank 13 from the upper side wall 32 serving as a drain outlet is provided with a locking claw 42 on the water storage tank 13 via the pin 41. The air tank 11 is provided with a locking projection 43. By locking the locking claw 42 to the locking projection 43, the bottom 14 of the water storage tank 13 is pressed against the sealing material 23 of the air tank 11.

  As a result, the gap between the bottom 14 of the water storage tank 13 and the upper part 21 of the air tank 11 is sealed.

  Next, the operation of the seal inspection apparatus 10 will be described with reference to FIGS.

  The locking claw 42 of the locking means 40 shown in FIG. 1 is removed from the locking projection 43, and the water storage tank 13 is rotated in the direction of arrow A about the hinge 12.

  As shown in FIG. 2, the water storage tank 13 is set at an attachment / detachment position where the grommet 15 can be easily attached, that is, a position inclined by approximately 90 °.

  In this state, the annular groove 15A of the grommet 15 is fitted into the mounting hole 16 of the water storage tank 13, and the grommet 15 is attached to the mounting hole 16.

  By setting the water storage tank 13 at a position where the grommet 15 can be easily attached, the operator can attach the grommet 15 without taking an unreasonable posture.

  After the grommet 15 is attached to the attachment hole 16 of the water storage tank 13, the water storage tank 13 is rotated in the direction of arrow B about the hinge 12. As shown in FIG. 1, the bottom 14 of the water storage tank 13 is placed on the sealing material 23 of the air tank 11.

  By locking the locking claw 42 to the locking projection 43, the bottom 14 of the water storage tank 13 is pressed against the sealing material 23 of the air tank 11, and a gap between the bottom 14 of the water storage tank 13 and the top 21 of the air tank 11 is formed. Seal.

  By turning on / off valve 37 of water supply pipe 33 and driving pump 34, water 18 is supplied from water supply tank 35 to water supply pipe 33, and water 18 led to water supply pipe 33 is supplied to water supply pipe 33. Is supplied to the water storage tank 13.

  The compressor 25 is driven with the on / off valve 27 of the air supply pipe 26 turned on and the on / off valve 29 of the air discharge pipe 28 turned off.

  Pressurized air is guided from the compressor 25 to the air supply pipe 26, and the guided pressurized air is supplied into the air tank 11 through the air supply pipe 26.

  When the sealability of the wire harness 20 attached to the grommet 15 is insufficient, the pressurized air supplied to the air tank 11 leaks into the water 18 in the water storage tank through the poorly sealed portion, and rises as bubbles 50. .

  On the other hand, when the sealability of the wire harness 20 attached to the grommet 15 is sufficient, the pressurized air supplied to the air tank 11 does not leak into the water 18 in the water storage tank 13, so that no bubbles 50 are generated.

  Thereby, the sealing state of the sealing material (penetrating portion) 20B of the wire harness 20 in the grommet 15 can be inspected with respect to the grommet 15 having the wire harness 20 penetrated.

  After the seal state inspection is completed, the locking claw 42 of the locking means 40 is removed from the locking projection 43, and the water storage tank 13 is rotated in the direction of arrow A about the hinge 12.

  As a result, the water storage tank 13 is tilted as shown in FIG. 3, and the water 18 in the water storage tank 13 is discharged from the upper side wall 32 serving as a drain port.

  Next, 2nd-3rd embodiment is described based on FIGS. 4-5. In addition, in 2nd-3rd embodiment, the same code | symbol is attached | subjected about the same member as 1st Embodiment, and description is abbreviate | omitted.

  A seal inspection device 60 according to the second embodiment shown in FIGS. 4A and 4B includes a sub-tank 61 in the water tank 13, and the water tank 13 is inclined by approximately 90 ° from the inspection position on the air tank 11. The water 18 in the water storage tank 13 is stored in the sub-tank 61 when the storage tank 13 is placed in the attachment / detachment position, and the water 18 in the sub-tank 61 is returned to the water storage tank 13 when the water storage tank 13 is moved to the inspection position.

According to the seal inspection device 60 according to the second embodiment, when the water tank 13 is tilted to the attachment / detachment position, the water 18 in the water storage tank 13 is stored in the sub tank 61 and the water storage tank 13 is placed on the air tank 11 at the inspection position. When moved, the water 18 in the sub tank 61 is returned to the water storage tank 13.
Therefore, the water 18 can be stored in the sub tank 61 and reused, and the amount of water 18 used can be suppressed to a small amount.

  In addition, since the water 18 is stored in the sub tank 61, the water 18 can be quickly returned to the water storage tank 13, so that the seal inspection time can be shortened.

  In order to prevent water 18 from leaking from the top opening 62 of the water storage tank 13 when the water storage tank 13 is tilted, a prevention wall 63 is provided on the boundary wall 64 with the sub tank 61.

  By making the top of the water storage tank 13 an opening 62, the inside of the water storage tank 13 is prevented from becoming negative pressure.

  A seal inspection apparatus 70 according to the third embodiment shown in FIGS. 5A and 5B is configured to include a sub tank 61 in the water storage tank 13 and to connect the water storage tank 13 and the air tank 11 with a buffer relaxation damper 71. did.

  According to the seal inspection device 70 according to the third embodiment, when the water storage tank 13 is moved from the attachment / detachment position to the inspection position placed on the air tank 11, the buffer relaxation damper 71 is actuated to move the water storage tank 13 to the air tank 11. Can move slowly. Water 18 can flow slowly from the sub tank 61 to the water storage tank 13.

  Note that the sealing material 23 of the present invention is not limited to the above-described embodiment, and appropriate modifications, improvements, and the like are possible.

  Furthermore, although the side wall upper part 32 on the hinge 12 side of the present invention is a drain port, the drain port is not limited to the above-described embodiment, and appropriate modifications, improvements, and the like are possible.

  Further, in the present invention, an example in which the water storage tank 13 is set at a position inclined by approximately 90 ° as an attachment / detachment position of the water storage tank 13 to which the grommet 15 can be easily attached has been described. Not only the position but also other inclined positions can be set as the attachment / detachment positions.

  Furthermore, although the drainage means 19 of the present invention has been described with respect to the example in which the side wall upper part 32 on the hinge 12 side is configured to project outward so as to become a drainage port, the present invention is not limited thereto. It is also possible to provide a drain pipe, provide an on / off valve in the drain pipe, and open the on / off valve to drain the water in the water storage tank 13.

  In addition, the materials, shapes, dimensions, forms, numbers, locations, etc. of the air tank 11, the water storage tank 13, the grommet 15, the air supply / discharge means 17, the water supply / discharge means 19 and the like exemplified in the above-described embodiments can achieve the present invention. Anything can be used and is not limited.

It is sectional drawing which shows 1st Embodiment of the seal | sticker test | inspection apparatus which concerns on this invention. It is explanatory drawing which shows the example which attaches a grommet to 1st Embodiment which concerns on this invention. It is explanatory drawing which shows the example of the waste_water | drain of 1st Embodiment which concerns on this invention. It is explanatory drawing which shows 2nd Embodiment of the seal inspection apparatus which concerns on this invention. It is explanatory drawing which shows 3rd Embodiment of the seal inspection apparatus which concerns on this invention.

Explanation of symbols

10,60,70 Seal inspection device
11 Air tank
13 Water tank
14 Bottom of water tank
15 Grommet
16 Mounting hole
17 Exhaust and exhaust means
18 water
19 Water supply and drainage means
20 Wire harness
20B Sealing material (penetrating part)
61 Sub tank

Claims (5)

For the grommet with the wire harness penetrated, the grommet inspects the sealing state of the penetration part of the wire harness,
An air tank,
A water storage tank that is pivotally attached by a hinge to tilt upward of the air tank;
A mounting hole formed at the bottom of the water tank so as to communicate the air tank and the water tank, and enabling the fitting of the grommet from the water tank side;
A seal inspection apparatus comprising: air supply / exhaust means for supplying and discharging pressurized air to and from the air tank.   The seal inspection apparatus according to claim 1, further comprising water supply / drainage means for supplying and discharging water to and from the water storage tank.   The seal inspection apparatus according to claim 1, wherein water is drained by tilting a water storage tank with respect to the air tank.   The water storage tank is provided with a sub-tank, the water in the water storage tank is stored in the sub-tank when the water storage tank is tilted from the inspection position on the air tank to the attachment / detachment position, and the water in the sub-tank is moved when the water storage tank is moved to the inspection position. The seal inspection apparatus according to claim 1, wherein the seal inspection apparatus is configured to return the liquid to the water storage tank. In the seal inspection method for inspecting the seal state of the penetration portion of the wire harness using the seal inspection apparatus according to claim 1,
The water storage tank that is pivotally attached by a hinge to be tilted upward of the air tank is disposed at an attachment / detachment position inclined at a predetermined angle with respect to the air tank,
Insert the grommet into the mounting hole of this water storage tank,
Rotate the water storage tank, place it on the air tank and place it at the inspection position,
A seal inspection method, wherein pressurized air is supplied into an air tank by the air supply / exhaust means.

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