JP6349342B2 - Car door hole seal - Google Patents

Description

  The present invention relates to a door hole seal that is provided between an inner panel of an automobile door and a door trim in order to ensure waterproofness, and has a slit mechanism through which a wire harness for, for example, a window regulator is passed. Is.

As shown in FIG. 5, generally, a door hole seal 10 is provided between an inner panel 1 of an automobile door and a door trim 2 provided on the inner side of the automobile door in order to ensure good waterproof properties. . As shown in FIGS. 6 and 7, for example, the door hole seal 10 is provided with a slit 13 for extracting the wire harness 100 for the window regulator 4 or the like from the vehicle outer side 101 to the vehicle inner side 102. (For example, refer to Patent Document 1 and Patent Document 2).
The door hole seal 10 is composed of only one main seat 11 and has a slit 13 formed thereon. As shown in FIG. 7, the sub seat 12 is overlapped on the vehicle exterior of the main seat 11. There is known a structure in which a slit 14 is formed on the sub-sheet 12 side. The sub sheet 12 is partially attached to the main sheet 11 by welding. Reference numeral S indicates a welding line.

JP 2009-51459 A Japanese Patent No. 4858303

However, since the slit 13 formed in the conventional door hole seal 10 extends in the lateral direction, as shown in FIG. 8, when the wire harness 100 protruding from the slit 13 hangs down, the opening M opens in the main seat 11. There was a problem that occurred. When the mouth opening M occurs, sound leaks from the mouth M, which causes a decrease in sound insulation.
In addition, although the slit for extracting the wire harness 100 is disclosed by patent document 1 and patent document 2, there is no description regarding opening prevention of a slit.

  Then, the place made into the objective of this invention makes it a subject to provide the door hole seal which can prevent the fall of sound insulation by the countermeasure against opening of a slit.

In order to achieve the above object, a door hole seal according to the present invention is provided between an inner panel (1) and a door trim (2) of an automobile door, and a wire harness (100) is attached to a part of the door outer seal. A door hole seal (20) provided with a slit mechanism (30) for extracting from the vehicle interior (102) to the vehicle interior (102) or from the vehicle interior (102) to the vehicle exterior (101),
The slit mechanism (30) is formed at the lower end of the first slit (23) extending vertically with respect to the main seat (21, 41) and the diameter of the wire harness (100). It is comprised from the round hole (24, 34, 44) in which the said wire harness (100) is accommodated in the same diameter or slightly smaller than it,
A round hole (34) formed in the main seat (21) extends from the vehicle exterior (101) of the main seat (21) to the vehicle interior (102), or from the vehicle interior (102) to the vehicle exterior (101). It penetrates in the state expanded in the taper shape, It is characterized by the above-mentioned.
Here, “up and down” indicates a direction in a state where the vehicle is horizontal.

Further, according to the present invention, the main sheet (41) has a two-layer cross section, and one layer (411) has a lower specific gravity and / or a higher water absorption rate than the other layer (412), The main sheet (41) having the two-layer cross-section has a round hole (44) formed in the two-layer main sheet (41) with a small specific gravity and / or a high water absorption rate. It is characterized by penetrating from one layer (411) to the other layer (412) in a tapered diameter state.
  Here, as an aspect of one layer (411) of the main sheet (21), when the specific gravity is small, the water absorption is high, the specific gravity is small, and the water absorption is low as compared with the other layer (412). The case of any one of the three modes of the high case is shown.

  Note that symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and modes for carrying out the invention described later.

According to the present invention, in the door hole seal provided between the inner panel of the automobile door and the door trim, the slit mechanism for extracting the wire harness from the outside of the vehicle to the inside of the vehicle or from the inside of the vehicle to the outside of the vehicle is provided on the main seat. The wire harness hangs down because it is composed of a first slit that extends vertically and a round hole that is formed at the lower end of the first slit and accommodates the wire harness with the same diameter as or slightly smaller than the diameter of the wire harness. Difficult, close contact with the round hole and stored in a stable state.
Therefore, the wire harness has no gap with respect to the round hole or the gap can be made extremely small, so that opening of the slit is prevented. Therefore, the sound insulation is not particularly deteriorated, and water can be prevented from entering. Moreover, even if the wire harness vibrates up and down due to the vibration of the automobile by restricting the round hole at the lower end, it is possible to prevent the load from being concentrated on the lower end of the slit and breaking the slit.

  Further, according to the present invention, the round hole formed in the main seat passes through the main seat from the outside of the vehicle to the inside of the vehicle or from the inside of the vehicle to the outside of the vehicle in a tapered shape. If the wire harness is inserted from the larger side, it is easier to insert the wire harness. On the smaller diameter side, the main seat is more closely attached to the wire harness, so that the generation of a gap is prevented.

  In addition, if the main sheet has a two-layer structure and one of the layers has a specific gravity smaller than that of the other layer and / or a structure having a high water absorption rate, one layer can be provided by intentionally providing a flexible layer. Compared with a single-layer structure made of a material, the flexibility of the entire main sheet can be easily maintained, and there is little risk of poor adhesion to the wire harness due to manufacturing of the main sheet and variations in work. Furthermore, if the round hole formed in the main sheet is tapered, the diameter of one of the highly flexible layers is reduced and the other layer is enlarged, the more flexible layer is more closely attached to the wire harness. Can be made.

It is a principal part side view of the door hole seal which concerns on embodiment of this invention. It is a principal part longitudinal cross-sectional view of the door hole seal which concerns on embodiment of this invention. It is a side view which shows the relationship between the slit of a doorhole seal and the wire harness extracted from the slit in embodiment of this invention. It is a principal part side view of another door hole seal which concerns on embodiment of this invention. It is a schematic longitudinal cross-sectional view which shows the motor vehicle door provided with the door hole seal. It is a principal part side view of the doorhole seal which concerns on a prior art example. It is a principal part longitudinal cross-sectional view of the doorhole seal which concerns on a prior art example. It is a side view which shows the relationship between the slit of the doorhole seal which concerns on a prior art example, and the wire harness extracted from the slit. It is a principal part side view of another door hole seal which concerns on embodiment of this invention.

With reference to FIG. 1 thru | or FIG. 3, the door hole seal 20 which concerns on embodiment of this invention is demonstrated.
The door hole seal 20 is provided between the inner panel 1 of the automobile door and the door trim 2, and a wire harness 100 for the window regulator 4 for raising and lowering the door glass 5 is provided at the upper end of the door hole seal 20 from the outside of the vehicle to the inside of the vehicle. A slit mechanism 30 is formed for extraction.

  The slit mechanism 30 is formed in the first slit 23 formed in the main seat 21, the round hole 24 formed in the first slit 23, and the sub-sheet 22 stacked on the outer side of the main seat 21. The second slit 25 is configured.

The main sheet 21 is a sound insulating sheet having a specific gravity of 0.05 to 0.4 and made of a soft material. Here, the main sheet 21 is made of an EPDM foam (sometimes referred to as “NI sheet”).
The first slit 23 extends linearly in a vertical direction with respect to the main sheet 21, that is, in a substantially vertical direction, and a round hole 24 is formed at the lower end of the first slit 23. The first slit 23 is formed by cutting a single line with a cutter (not shown) above and below the main sheet 21 and does not have a large width. Here, “up and down” indicates a direction in a state where the vehicle is horizontal.
The diameter L of the round hole 24 is set to be slightly smaller than the diameter of the wire harness 100, and the wire harness 100 is stored in a stable state in the round hole 24, and thereafter is not displaced vertically and horizontally. . The diameter L of the round hole 24 may be the same as the diameter of the wire harness 100, but the main sheet 21 that is softer around the wire harness 100 after the wire connection is slightly smaller than the diameter of the wire harness 100. It is preferable because the amount of opening of the first slit 23 is reduced.

The sub sheet 22 is made of a polyethylene (PE) film and is partially attached to the main sheet 21 by an adhesive or welding. In FIG. 1, the sub-sheet 22 covers the entire first slit 23 including the round hole 24 and is welded so as to surround the entire first slit 23 including the round hole 24. In the figure, the welding line is indicated by a symbol S, which is substantially rectangular.
The second slit 25 extends in a substantially horizontal direction with respect to the sub-sheet 22, and is formed at a lower position than the round hole 24 and higher than the welding line S. In addition, although the 2nd slit 25 has a certain width | variety up and down here, you may cut | disconnect a single line | wire with a cutter (not shown) on the left and right of the subsheet 22.
The slit mechanism 30 can be configured only by the main sheet 21, the first slit 23 formed in the main sheet 21, and the round hole 24, but the sub sheet 22 is overlapped on the main sheet 21 and the second sheet is also formed on the sub sheet 22. By providing the slit 25, the sub-sheet 22 becomes a support material for the soft main sheet 21, so that the main sheet 21 is prevented from drooping more than necessary due to the weight of the wire harness 100, and the main sheet 21 and the sub-sheet 22 are prevented. The double sheet improves the sound insulation effect and prevents water from entering.

Moreover, since the movement in the up-down direction is suppressed by the second slit 25 and the movement in the left-right direction is also suppressed by the round hole 24 of the main seat 21, the wire harness 100 is once arranged. Misalignment of the harness 100 is unlikely to occur.
Furthermore, since the first slit 23 extends linearly in a substantially vertical direction with respect to the main sheet 21, after the wire harness 100 is placed in the round hole 24, the first slit 23 is also formed in the first slit 23 by the weight of the wire harness. It is restrained to move along.
The sub-sheet 22 may be made of other types of thermoplastic resin such as polypropylene (PP) and is not limited to polyethylene.
Here, the vertical direction and the horizontal direction are the directions seen in the figure, and also the state after the door hole seal 20 is assembled to the vehicle. In other words, the term “substantially vertical” means that the vehicle is in a range of 40 degrees (°) from the vertical to both sides on the surface of the main seat 21 in a state where the vehicle is horizontal. In this state, it is shown that it is inside the range of 10 degrees (°) swinging from the vertical to both sides on the surface of the main seat 21. If the vehicle is in a horizontal range and within this range from the actual vertical, it has functionality. However, it is most preferable to provide the first slit 23 vertically and the second slit 25 horizontally. This is due in particular to the function of the sub-sheet 22 described below. When the second slit 25 is provided at a large angle, the waterproof property is inferior compared to the horizontal, and for preventing the displacement of the wire harness 100, This is because it is considered that the first slit 23 is preferably perpendicular to the second slit 25.

In this embodiment, both the main sheet 21 and the sub sheet 22 are formed of a waterproof material, thereby preventing water from penetrating the sub sheet 22 and the main sheet 21 and entering the indoor side. doing.
Further, in the present embodiment, a slit stopper that becomes a circular hole (circular) portion is formed at each end of the first slit 23 and the second slit 25 to prevent the slits 23 and 25 from being torn. ing.

According to the door hole seal 20 configured as described above, the slit mechanism 30 for extracting the wire harness 100 from the vehicle outer side to the vehicle inner side includes the first slit 23 extending in a substantially vertical direction with respect to the main seat 21; Since the wire harness 100 is formed at the lower end of the first slit 22 and is slightly smaller than the diameter of the wire harness 100 and accommodates the wire harness 100, the wire harness 100 is less likely to hang down and adheres to the round hole 24 and is stable. Paid in state.
Accordingly, since the wire harness 100 has no gap or can be made extremely small with respect to the round hole 24, the opening of the slit 23 is prevented, so that the sound insulation is not particularly deteriorated. It also prevents intrusion.

In this embodiment, the round hole 24 formed in the main seat 21 penetrates from the vehicle outer side 101 of the main seat 21 to the vehicle inner side 102 with the same diameter, but as shown in FIG. The round hole 34 formed in the main sheet 21 can also be penetrated from the one side of the main sheet 21 to the other side in a tapered shape.
According to this, for example, when the side having a small diameter is set to the vehicle outer side 101, the main sheet 21 having a thin tip is further closely attached to the wire harness 100 together with the flexibility of the material, so that the generation of a gap is further prevented. . In addition, since there is a gapless seal on the vehicle exterior side 101, it is possible to reliably prevent water and the like from entering in front.
On the contrary, if the wire harness 100 is inserted from the vehicle exterior side 101 with the vehicle exterior side 101 as the large diameter side, the wire harness 100 can be easily inserted. Further, since the main seat 21 is more closely attached to the wire harness 100 on the small diameter side, here, the vehicle interior side 102, the generation of a gap is prevented.

  Further, as shown in FIG. 9, the main sheet may be formed of a foam having a two-layer cross-sectional structure. In such a structure, one layer has a lower specific gravity or higher water absorption than the other. When the circular hole 44 is provided in such a main sheet 41, at least one layer is more flexible than the other as compared with the case where the whole is formed of the same material. Even if there is some manufacturing variation, the flexibility of the entire main seat 41 is less likely to be inferior due to the presence of a layer of a flexible material intentionally provided. Even if there is a variation, the flexibility of the round hole 44 of the main seal 41 is maintained, and variations in the adhesion performance hardly occur. Therefore, such a two-layer structure is very effective in the present invention.

Further, in the case where the main sheet 41 having the above-described two-layer structure is provided with the round hole 44 whose diameter increases in the cross-sectional direction, the diameter of one layer 411 having a small specific gravity and / or a high water absorption rate is smaller than that of the other layer 412. It is preferable to do. One layer 411 having a low specific gravity and / or a high water absorption rate is more flexible than the other layer 412, and therefore, even a smaller hole diameter is acceptable for the wire harness 100. It is possible to absorb the variation and make it more closely contact. In this case, one layer 411 having a small specific gravity and / or a high water absorption rate is generally used as the vehicle inner side, and the waterproof property of the vehicle outer side is maintained.
Here, the one layer 411 having a small specific gravity and / or a high water absorption rate is a case where the specific gravity is small, the water absorption rate is high, the specific gravity is small, and the water absorption rate is high compared to the other layer 412. The case of any one of three modes is shown.

  In the present embodiment, the door hole seal 20 provided with the slit mechanism 30 for extracting the wire harness 100 from the vehicle outer side 101 to the vehicle inner side 102 has been described. However, the wire harness 100 is extracted from the vehicle inner side 102 to the vehicle outer side 101. Therefore, the present invention can also be applied to a slit mechanism. Although the wire harness 100 for the window regulator 4 for raising and lowering the door glass 5 has been described here, the wire harness can be used for various purposes such as door locks, door mirrors, and door outer handle sensor locks. Some of them are used, and these are also applied in the present invention.

DESCRIPTION OF SYMBOLS 1 Door inner panel 2 Door trim 3 Door outer panel 4 Window regulator 5 Door glass 10 Door hole seal 11 Main sheet 12 Sub sheet 13 Slit 14 Slit 20 Door hole seal 21 Main sheet 22 Sub sheet 23 First slit 24 Round hole 25 Second Slit 30 Slit mechanism 34 Round hole 41 Main seat 44 Round hole 100 Wire harness 101 Car exterior 102 Car interior 411 One layer 412 The other layer M Opening S Welding line

Claims (2)

A door hole seal provided between an inner panel of an automobile door and a door trim, and a slit mechanism for extracting a wire harness from the outside of the vehicle to the inside of the vehicle or from the inside of the vehicle to the outside of the vehicle,
The slit mechanism includes a first slit that extends vertically with respect to the main sheet, and a round hole that is formed at the lower end of the first slit and has the same diameter as or slightly smaller than the diameter of the wire harness. Made up of ,
A round hole formed in the main seat passes through the main seat from the vehicle outer side to the vehicle inner side, or from the vehicle inner side to the vehicle outer side in a taper-like diameter expanded state . The main sheet has a two-layer structure, and one layer has a lower specific gravity and / or higher water absorption than the other layer, and the main sheet having the two-layer structure has a two-layer main structure. The round hole formed in the sheet penetrates in a state where the diameter of the main sheet is small and / or the water absorption is increased from one layer to the other layer in a tapered shape. The described door hole seal.