JP2001176346A - Seal mechanism of passage part of passing-through things in partition portion of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal mechanism of the passage part of passing-through things in the partition portion of a vehicle, with a reasonable structure which can be installed easily and can satisfy seal functions. SOLUTION: This is a seal structure which can perform seal functions in the passage part of string-type soft things or stick-type things like a hose and wiring harness or the like passing through a partition portion 50 in a vehicle. It comprises a partition board 3 made of an elastic material and provided with passage-retaining holes 6, 6' almost equal to the outer diameters of passing- through things 30, 31 and corresponding to the number of the passing through things, and cut lines 7 running from the edges of the holes to outer circumference, and a grommet 2 made of an elastic material, which has an opening 2a fitted and engaged with the partition board 3 and which can be engaged and fixed with a side-partition hole 51 of the vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a string-shaped soft object such as a hose and a wiring harness, a pipe or a rod, etc., which are used to connect equipment in an industrial vehicle such as an automobile, a construction machine vehicle, an agricultural vehicle, and the like. The present invention relates to a sealing mechanism for a passing object passing portion in a partition wall portion of a vehicle, which enables a sealing at a place where the passing object passes through the partition wall portion.

[0002]

2. Description of the Related Art Conventionally, in industrial vehicles such as automobiles, construction machinery vehicles, agricultural vehicles, and the like, hydraulic hoses (air hoses), wiring harnesses (hereinafter referred to as string-like soft bodies) are piped through partition walls of the vehicle body.・ Electric material is attached to the partition hole so that the string-like soft body is not damaged when passing the string-like soft body through the partition hole provided in the partition wall of each chamber. The grommet made of is fitted to achieve its purpose.

[0003] As means for curing the string-like soft material in such a partition hole, when the number of the string-like soft material passing therethrough is small, for example, as shown in FIGS. A space surrounded by the edge covered by the grommet 52, which is covered with a grommet 52 formed of a soft resin (such as a rubber material) so as not to be damaged so as to cover the edge of the provided partition hole 51. The string-shaped soft objects 60 and 61 are inserted through the portion 53. The grommet 52 is formed by cutting one annular portion 52a of the grommet 52 and fitting it into the partition wall hole 51 in order to pass through a tip fixing member such as a nipple, a fitting, or a circuit connector.

When the number of string-like soft objects passing through is large, for example, as shown in FIGS.
A groove 54a formed of a soft resin and capable of engaging with a hole edge is formed in a large partition hole 51 'which is set in advance so that a number of string-like soft objects (hose 61) can pass through the partition 50. The grommet 54 provided on the outer periphery is integrally formed with a partition film 55 for closing the inside of the grommet 54, and a slit (cut line) is formed in the partition film 55, and the slit portion is formed with a required number of string-like soft objects. That can be sealed by passing through the seal. It is expected that the sealing function can be exerted at the portion of the partition film 55 between the holes corresponding to the outer diameter of the string-like soft body and the slit surfaces.

The grommet 54 with a partition membrane is shown in FIG.
As shown in (c), in the specific example, one vertical cutting line a and three horizontal cutting lines b are attached to the partition plate 55 before use. The grommet 54 with the partition plate thus formed is mounted by fitting the groove 54a to the edge of the partition hole 51 '. Thereafter, as shown in FIG. 6 (b), six string-like soft objects (hoses 61) are pushed open along the vertical and horizontal cross-section lines a and b to be inserted into the partition plate 55, whereby the partition wall is formed. It is made to pass through the hole 51 'so that the partition wall can seal and protect the passing cord-like soft body.
In this embodiment, the same applies even if the string-like soft body is a wiring harness.

FIGS. 7 (a) and 7 (b) show
This is an example of a partition wall hole 51 ″ that allows a plurality of string-like soft objects (hose 61) to pass in a horizontal line, and in this case also, a grommet 56 with a partition membrane made of a soft resin is used similarly to the above. In the grommet 56 with a partition film, the partition film 57
The cut lines c corresponding to the number of the string-shaped soft objects passing in a horizontal line are arranged in the portion, and the cut lines c are pushed out to allow the string-shaped soft objects to pass. Reference numeral 56a denotes a fitting groove portion for the partition hole 51 ". In this embodiment, the same applies even if the string-like soft body is a wiring harness.

[0007]

Normally, as shown in FIGS. 5 to 7, a hose, a wiring harness, and the like have a nipple 63 (clamp fitting 63a), a sleeve, and a flange at the distal end thereof in the case of a hose 61. In the wiring harness 60, circuit connecting connectors 64 and 64 '(hereinafter referred to as fixing members) are fixed, respectively, and these fixing members are connected to the string-like soft body (60, 60).
61) is always larger than the outer diameter. Therefore, when passing through the partition hole 51 (51 ′, 51 ″),
It is necessary to set the size so that these fixing members can pass.

Therefore, as shown in FIG. 5, when the number of passages is small, a space 53 is formed inside the grommet 52, and the space 53 is formed by the string-like soft objects 60, 61. It can be inserted.
Since it is the simplest, it has good workability and can be arranged without damaging the string-like soft body. However, when the space 53 is formed, the front and rear of the partition wall 50 are communicated with each other by a gap generated between the string-shaped soft object and the inner peripheral portion of the grommet 52 in the space 53, and sound and dust are transmitted from one side through the gap. A problem arises in that the cutoff effect is reduced through the other chamber. In particular, in the case of an industrial vehicle, when noise from the operation of a work machine or the like from the outside enters, the interior of the room becomes noisy and the workability of a passenger such as an operator is hindered. Of course, it is not preferable because the inside is also contaminated by intrusion of dust.

In the case where the number of string-like soft objects passing through the partition hole is large, grommets with partition membranes 54 and 56 are used, but FIG. 6B or FIG.
In such a case, as shown by (b),
When passing the string-like soft body 61 (60), it is necessary to facilitate the passage of the fixing member attached to the distal end portion.
57 are provided with cut lines a, b, and c. Therefore, when they pass through the string-like soft body 61 (60), the partition films 55 and 57 inevitably roll up at the intersections of the cut lines, For this reason, a hatched portion in FIG. Therefore, even if an attempt is made to eliminate the gap by using the partition membranes 55 and 57 made of an elastic material, the roll-up 59 cannot be prevented, and sound, dust, water, and the like enter through the gap 58. There is a problem that it cannot be prevented.

[0010] The cause of the roll-up of the partition film at the cut line portion is that a large cut line must be provided to allow the tip fixing member of the string-like soft body to pass through, and the string-like soft body passes through the grommet partition membrane. There are many cases, such as a misalignment in the vicinity, and the fact that the string-like soft body is so soft that it cannot be passed orthogonally near the partition membrane due to bending. In addition, if there is movement due to position adjustment during operation or vibration during operation in the circuit near the passage position, this string-like soft body also moves, and a string-like shape inserted through the cut line part of the partition membrane Bend-up occurs due to a combination of lack of binding force to soft objects.

Further, when a large number of string-like soft objects are passed through the cut line portion of the partition membrane, depending on the size of the tip-fixing member, the tip-fixing member to be passed later and the existing string-like soft object are It is difficult to pass due to the interference, and in order to avoid this, the arrangement interval of the string-like soft objects must be increased. In addition, in any case, in order to pass the string-shaped soft body through the partition hole provided in the partition portion, it is necessary to pass the tip fixing member through the portion having the sealing function as described above, and a narrow line portion such as a cut line portion is required. There are problems at the time of work, such as difficulty in passing assembly work of the part, and damage to the seal function part by the sharp part of the metal fittings fixed at the tip.

Further, in the conventional structure for forming a seal function of the partition wall, a dedicated member is required for each time the number and thickness of the string-like soft objects differ due to a change in vehicle specifications or a partial difference. Parts must be prepared, which is economically problematic. A similar problem occurs in the case of pipes and rods that pass through the partition wall and operate functionally as described above.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem, and a sealing mechanism for a passing object passing portion in a partition wall portion of a vehicle having a reasonable configuration that can be easily mounted and satisfies a sealing function. It is intended to provide.

[0014]

Means for Solving the Problems and Action / Effect To achieve the above-mentioned object, according to the present invention, a sealing mechanism for a string-like soft object passing portion in a partition of a vehicle is provided with a hose passing through the partition in the vehicle. , A sealing structure capable of exhibiting a sealing function at a passage portion of a string-like soft object or a rod-like body such as a wiring harness, the passage holding hole having substantially the same outer diameter as the passing object and corresponding to the number of passages, and the outer periphery from the hole edge. A partition plate made of an elastic material having a cut line leading to the part,
And a grommet formed of an elastic material having an opening that fits into the partition plate and can be engaged and fixed to the vehicle-side partition hole.

In the present invention configured as described above,
By using a resilient partition plate made of an elastic material to extend the cut line portion of a passing object such as a string-like soft object that passes through the partition, a string-like shape is formed in the passage holding hole provided in the partition plate. The soft body can be inserted and held regardless of the size of the tip fixing member (nipple, sleeve, flange member, connector for circuit connection, etc.), and fitted and held as it is in the opening of the grommet. Also,
When adjusting the length, the position can be changed arbitrarily until the holding plate is attached to the opening of the grommet.

As described above, according to the present invention, a passing object such as a string-like soft body is attached by fitting the intermediate portion into the passing holding hole of the partition plate and aligning the intermediate portion, and the passing holding hole and the string-like soft body are attached. The outer diameter of the object, the cutting line surfaces, the opening of the partition plate and the grommet, the fixed grommet and the partition hole are held in close contact with each other, ensuring the proper position of passing objects such as string-like soft objects that pass through. In addition, a seal at the partition can be secured. Therefore, it is possible to prevent intrusion of sound and dust from the outside, and to secure a comfortable environment. Also, if the number and size of passing objects differ due to changes in vehicle specifications or only some differences, only the partition plate that matches the passing object can be replaced and the grommet can be used as it is, so overall The effect that various situations can be dealt with without preparing many complicated parts is obtained.

The mounting portion of the partition plate at the opening of the grommet is preferably provided at a position which is one dimension away from the fixing portion of the grommet to the partition wall. In this case, the mounting portion of the partition plate can be formed by effectively utilizing the opening size provided in the partition wall, and a passing object such as a string-like soft body can be formed without excessively increasing a hole for mounting the grommet in the partition wall. There is an effect that a sealing mechanism of the passage portion can be configured.

It is preferable that a bag-like or pleat-like intermediate portion is provided between the mounting portion of the grommet for the partition plate and the fixing portion to the partition wall. In this way, an elastic displacement effect is obtained in the bag-shaped or pleat-shaped intermediate portion. Even if a large shift occurs in the passing position of a passing object such as a string-like soft body, the assembling is easy, and furthermore, the positional shift is reduced. Even if it is large and moves, or if it is inclined at the passing position, the passing object such as the string-like soft body and the partition plate follow together, so that there is no unreasonable force, and the seal at the partition wall part This has the effect that functions can be secured.

When a plurality of passing objects are arranged in parallel, the partition plate is divided into two parts, each having a notch shape corresponding to the outer diameter of the passing object and a pitch corresponding to the number of arrangements. It is composed of comb-shaped partition plate pieces provided with cuts, and the cut-off portions of these partition plate pieces are overlapped so that a passing object is received in the cut and sandwiched by both partition plate pieces and fixed. The grommet is preferably configured to be fitted and held in the opening. In this case, when the passing object is held on the partition plate, there is an advantage that the assembling is further facilitated because the passing object only has to be sandwiched between the cut portions.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific embodiment of a sealing mechanism for a passing object passing portion in a partition wall of a vehicle according to the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view (a) of a sealing mechanism of a passing object passing portion in a partition wall portion of a vehicle according to a first embodiment of the present invention, and FIG.
It is the D view (b) and the perspective view (c) of a partition plate.

The seal mechanism 1 of this embodiment passes a string-like soft object (passing object) such as a control wiring harness or a hose from the vehicle body side (external) into a cab (not shown) of a construction machine vehicle, for example. In this case, the number of passing objects 30 and 31 is relatively small. The sealing mechanism 1 includes a grommet 2 formed of an elastic material (for example, soft plastic, rubber, or the like) that can be engaged with and fixed to a partition hole 51 provided in a wall (partition 50) of a cab. The grommet 2 includes a partition plate 3 made of an elastic material which is fitted to the opening 2 a of the grommet 2 and directly holds the passing objects 30 and 31.

The grommet 2 is formed on the outer periphery of the base 2b with a groove 4 fitted to cover an edge of a partition hole 51 provided in the partition 50, and a passing object insertion shaft is formed from the base 2b provided with the groove 4. A partition plate fitting groove 5 is provided in the inner periphery of the opening 2a large enough to allow a fixing member (not shown) to be attached to the tip of the passing object at a position which is appropriately spaced in the direction.

As shown in FIG. 1 (c), the partition plate 3 has an outer shape which fits into the partition plate fitting groove 5 of the grommet 2 and has the number of passing objects 30, 31 and the passing objects 30, 31.
31 is provided with passage holding holes 6 and 6 'substantially matching the outer diameter of the base member 31 and is formed of an elastic material into a shape in which a cut line 7 is provided on the outer peripheral surface from each passage holding hole. It is preferable that the partition plate 3 has higher hardness than the grommet 2. If the hardness is the same as that of the grommet 2, it is desirable to increase the thickness.

In the sealing mechanism 1 of the first embodiment having the above-described configuration, the grommet 2 formed in advance in accordance with the partition wall hole 51 is fitted into the groove 4 provided on the outer periphery of the base 2b. Install them together. This grommet 2
Since the grommet 2 itself is formed of an elastic material, the grommet 2 itself can be attached to the partition wall hole 51 by deforming the grommet 2 so as to fit and fitting the groove 4 with the hole edge.

The passing objects 30 and 31 are passed through the partition hole 51 in which the grommet 2 is mounted.
In accordance with 1, the passage holding holes 6, 6 'of the partition plate 3 are opened at the cutting lines 7, 7 to be fitted. At this time, the passing holding holes 6, 6 'corresponding to the passing objects 30, 31 are respectively connected to the passing holding holes 6, 6' at the end portions 3a by the cutting lines 7, 7 at the corresponding positions of the partition plate 3. When it is twisted back and forth in the axial direction, the passage holding holes 6 and 6 ′ are largely opened and can be fitted to the intermediate portions of the passing objects 30 and 31.

After the partition plate 3 is engaged with the plurality of passing objects 30 and 31 in this manner, the partition plate 3 is moved along the passing objects 30 and 31 to open the opening 2a of the grommet 2 previously attached. When the grommet 2 is fitted into the partition plate fitting groove 5, the passing objects 30 and 31 are supported by the grommet 2 via the partition plate 3 as shown in FIG. In this state, the passing objects 30 and 31 are kept in close contact with the outer peripheral portion by the passage holding holes 6 and 6 ′ of the partition plate 3, and the partition plate 3 is fitted to the opening 2 a of the grommet 2 by the fitting groove 5. Since it is held closely, the inside and outside can be reliably shut off. Therefore, it is possible to prevent sound and dust from entering from outside, and even if the passing objects 6, 6 'passing through the partition wall are moved, the partition plate 3 is formed of an elastic material. We can respond and do not hinder.

FIG. 2 shows a vertical sectional view (a) of the seal mechanism of the second embodiment and an EE view (b) thereof. FIG. 3 is an exploded perspective view of the seal mechanism.

The seal mechanism 1A according to the second embodiment is suitable for a case where the number of passing objects 30 (31) similar to that in the first embodiment is larger (six in the specific example). A grommet 2A formed of an elastic material similar to that of the above-described embodiment, which can be engaged with and fixed to a partition wall hole 51 'of a required size provided in the partition 50, and an opening 2 of the grommet 2A.
c (similar to the previous embodiment, sized so that the fixing member at the tip of the passing object can pass)
(31) and a partition plate 3A made of the same elastic material as in the above-described embodiment.

The grommet 2A of the second embodiment has a groove 4a fitted on the edge of the partition wall hole 51 'and a base 2d provided on the outer periphery to a partition plate fitting groove 5a and an opening 2c formed on the inner periphery. Is longer than that of the above embodiment, and the intermediate portion 8 is formed in a pleated shape.

As shown in FIG. 3, the partition plate 3A has an outer shape that fits into the partition plate fitting groove 5a of the grommet 2A, and the number of the passing objects 30 (31) and the number of the passing objects 30 (31). Passage holding hole 6 that almost matches the external dimensions
(6 '), each of which has a cutting line 7 at the shortest distance from the passage holding hole 6 (6') to the outer peripheral surface, and is made of an elastic material having relatively higher hardness than the material of the grommet 2A. It is molded to the required thickness.

In the sealing mechanism 1A according to the second embodiment, the grommet 2A is firstly provided in the base 2d of the partition hole 51 'in the base portion 2d, as in the previous embodiment.
a. After that, the required passing object 3
0 (31) is prepared for wiring and piping through the opening 2c of the grommet 2A, and then the respective passage holding holes 6 (6 ') of the partition plate 3A are opened at seven cutting lines in the same manner as described above. The passing object 30 (31) corresponding to (6 ') is fitted, and the partition plate 3A is temporarily held on the passing object 30 (31). Thereafter, when the position of the partition plate 3A is slid and adjusted to fit the partition plate 3A into the partition plate fitting groove 5a in the opening 2c of the grommet 2A, as shown in FIG. 31) is supported by the grommet 2A via the partition plate 3A.

The grommet 2A holding a large number of passing objects 30 (31) through the partition plate 3A in this manner is a partition plate that supports the passing object 30 (31) at a position far away from the base 2d mounted on the partition 50. At the same time as holding 3A, the intermediate portion 8 connecting them is formed in a pleated shape, so that, for example, even if the passing object 30 (31) is not straight but is bent due to wiring and piping, As shown in FIG. 2 (a), the fold-shaped intermediate portion 8 can be freely deformed in accordance with the bending thereof and can pass through without impairing the degree of freedom of the passing object 30 (31). . Of course, partition plate 3A
In this case, the degree of close contact between the passage holding holes 6, 6 'and the passing object at the holding surface is maintained, and the sealing effect can be obtained without the occurrence of a gap in the other fitting portions by the engagement of the elastic material.

FIG. 4 shows the seal mechanism of the third embodiment in an assembled vertical sectional view (a), its FF view (b) and GG view sectional view (c), and a perspective view of a partition plate (d). , Respectively.

The seal mechanism 1B of the third embodiment has basically the same configuration as that of the above-described embodiment. Therefore, components other than those having different configurations are denoted by the same or similar reference numerals, and detailed description is omitted.

This sealing mechanism 1B is suitable for the case where a number of passing objects 30 (31) similar to those in the second embodiment are arranged in a row in a row (specifically, four). And the partition hole 5 provided in the partition 50
This is a configuration adopted when the space occupied by a passing object is small with respect to the diameter of 1 ". A grommet 2B formed of the same elastic material as in the above embodiment, and fitted into an opening 2f of the grommet 2B. In addition, a partition plate 3B made of an elastic material similar to that of the above-described embodiment, which directly holds the passing object 30 (31).

The grommet 2B of the third embodiment has a groove 2b fitted on the edge of the partition wall hole 51 "and a base 2g provided on the outer periphery to a partition plate fitting groove 5b and an opening 2f formed on the inner periphery. Is made to have a diameter corresponding to the amount of passing objects to be passed close to each other as in the first embodiment, and is formed on the wall surface 9 that covers a portion that is the difference between the opening 2f and the partition wall hole 51 ″. I have.

As shown in FIG. 4 (d), the partition plate 3B has an outer shape that fits into the partition plate fitting groove 5b provided on the inner periphery of the opening 2f of the grommet 2B, and the passing object 30 ( 31) two partition plates formed in a horizontal line at a required pitch with holding notches 11 opened from a semicircular portion substantially matching the number of pieces 31) and the external dimensions of the passing object 30 (31). When the pieces 3 ′ and 3 ′ are superposed in different directions, the holding cuts 11 are formed so that a holding hole for a passing object is formed. And
As in the above-described embodiment, the two grommets 2B are formed of an elastic material having relatively higher hardness than the material of the grommet 2B so as to have a required thickness.

In the sealing mechanism 1B of the third embodiment, the grommet 2B is connected to the partition wall 50 in the same manner as in the previous embodiment.
The partition plate 3B is first fitted with the passing object 30 (31) into the holding notch 11 of one partition plate piece 3 ', and then the other partition plate 3B is fitted. When the holding cuts 3 'are overlapped with each other so that the holding cuts 11 are engaged with the passing objects 30 (31), the passing cuts 30 are formed by the holding cuts 11 of the partition plates 3', 3 '.
(31) is sandwiched. In this state, the partition plate 3B is moved to the opening 2f of the grommet 2B and is fixed by being fitted into the partition plate fitting groove 5b.

In the sealing mechanism 1B according to the third embodiment as described above, similarly to the above-described embodiment, a passing object can be easily passed through the partition wall to shut off the inside and outside. Even if the passing object may be shifted in the direction of the sealing mechanism 1B due to the wiring and piping, in this case, the mounting portion of the partition plate 3B is moved from the mounting position of the grommet 2B to the partition hole 51 ″. Since the wall surface 9 which is located slightly apart and which covers the portion between the opening 2f and the partition wall hole 51 "is formed of an elastic material, the wall surface 9 can be displaced without any trouble.

As described above, according to the present invention, many problems that have occurred in the conventional portion of the string-like soft object passing through the partition wall portion can be rationally solved with a simple configuration, for example, as shown in FIG. Such a conventional example has a configuration as in the first embodiment, and a conventional example as shown in FIG. 6 has a configuration as in the second embodiment, and further has a configuration as shown in FIG. With respect to the conventional example, the configuration of the third embodiment can solve the conventional problems. However, the present invention is not limited to these, and the above embodiments can be combined according to the state of the passing object. According to the present invention, in this way, a plurality of passing objects can be arranged in an orderly manner and held without difficulty.

According to the sealing mechanism of the present invention, even when a linear article such as a rod or a pipe as well as a cord-like soft object is passed through the partition, the sealing is performed in the same manner. Can be.

In the second embodiment, the intermediate portion is formed in a pleated shape. However, the same effect can be obtained by forming the intermediate portion in a bag shape as a means for improving the flexibility of the intermediate portion. Can be.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a sealing mechanism of a passing object passing portion in a partition wall of a vehicle according to a first embodiment of the present invention (a).
And DD view (b), and a perspective view (c) of the partition plate.
It is.

FIG. 2 is an assembled vertical sectional view (a) of the seal mechanism of the second embodiment and a view taken along the line EE.

FIG. 3 is an exploded perspective view of a seal mechanism according to a second embodiment.

FIG. 4 is an assembled vertical sectional view (a) of the seal mechanism of the third embodiment, its FF view (b) and GG view (c), and a perspective view of a partition plate (FIG. 4). d).

5A and 5B are views showing a conventional sealing means for a passing object in a partition wall, where FIG. 5A is a cross-sectional view of a main part with a part thereof omitted, and FIG. It is.

FIGS. 6A and 6B are views showing a conventional sealing means for passing objects in a partition wall, where FIG. 6A is a cross-sectional view of a main part with a part thereof omitted, and FIG. (C) is a diagram showing the partition membrane in a state where no passing object is inserted.

7A and 7B are views showing a conventional means for sealing a passing object in a partition part, where FIG. 7A is a cross-sectional view of a main part with a part thereof omitted, and FIG. It is.

[Explanation of symbols]

 1, 1A, 1B Seal mechanism 2, 2A, 2B Grommet 2a, 2c, 2f Opening 2b, 2d, 2g Base 3, 3A, 3B Partition plate 3 'Partition plate piece 4, 4a, 4b Groove 5, 5a, 5b Partition Plate fitting groove 6, 6 'Passage holding hole 7 Cut line 8 Intermediate part 9 Wall surface 30, 31 Passage 50 Partition wall 51, 51', 51 "Partition hole

Claims (4)

[Claims] A hose passing through a partition wall of the vehicle;
A sealing structure that can exhibit a sealing function at the passage of a string-like soft object or rod-like body such as a wiring harness, and is substantially the same as the outer diameter of the passing object, and corresponds to the number of passages, and from the hole edge to the outer periphery A sealing mechanism including a partition plate made of an elastic material having a cutting line leading to the vehicle, and a grommet formed of an elastic material having an opening fitted with the partition plate and capable of being engaged and fixed to a vehicle-side partition hole. A sealing mechanism for a passing object passing portion in a partition wall portion of a vehicle. 2. The vehicle according to claim 1, wherein the mounting portion of the partition plate at the opening of the grommet is provided at a position which is one dimension away from the fixing portion of the grommet to the partition. Sealing mechanism for object passage section. 3. The passing object passing through the partition wall portion of the vehicle according to claim 1, wherein a bag-like or pleat-like intermediate portion is provided between the mounting portion of the partition plate and the fixing portion to the partition wall of the grommet. Part sealing mechanism. 4. In the case where a plurality of passing objects are arranged in parallel, the partition plate is divided into two parts, each having a notch shape corresponding to the outer diameter of the passing object and the number of arrangements. It is made of comb-shaped partition plates with cuts at a fixed pitch, and the cut-off portions of these partition plates are overlapped so that the passing object is received in the cut and sandwiched between both partition plates, and fixed. The sealing mechanism for a passing object passing portion in a partition wall portion of a vehicle according to claim 1, wherein the sealing portion is configured to be fitted and held in an opening portion of a grommet to be formed.