JPH10250377A - Seal structure of hinge arm through hole in body of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the seal structure of a hinge arm through hole in the body of an automobile which can prevent the infiltration of a rainwater from a hole in which the hinge arm for supporting a door is penetrated. SOLUTION: This is the seal structure of a through hole in the body of an automobile, having a cover 30 for blocking the through hole provided with a hinge arm 26 fixed to the door 24 for opening/closing the opening provided on the car body and connected to the car body swingably and in which this hinge arm is movable by penetrating the through hole 28 of the car body, and provided with a ring shape seal material 32 inserted in the periphery edge 29 of the through hole. A fixed part 40 installed to the periphery edge thereby and a lip part 41 projected from this fixed part 40 and contactable to the cover and a stopper 42 projected from the fixed part hit by the hinge arm when the door is fully opened are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure for a hinge arm through hole in a vehicle body of an automobile, and more particularly to a seal structure applicable to a hole through which a hinge arm for swingably supporting a back door of an automobile passes.

[0002]

2. Description of the Related Art In an automobile having a back door, a hinge arm supporting the back door and swingably connected to the vehicle body is provided at the opening of the vehicle body so that no obstacle is present in the opening of the vehicle body that the back door opens and closes. It may pass through a through hole opened in the vehicle body on the side. In this case, a seal structure for preventing rainwater or dust from entering the vehicle interior through the through hole is required.

[0003] As one of such seal structures, there is one shown in Fig. 4 (Japanese Utility Model Laid-Open No. 56-136859). A hinge arm 12 that supports the door 10 and is swingably connected to the vehicle body 11 is disposed through a through hole 13 provided in the vehicle body, and is movable. A seal member 14 serving as a lid is attached to the hinge arm 12. This sealing material 14
When the door 10 is closed, it comes into contact with the seal seat 15 on the peripheral edge of the through hole 13 of the vehicle body to perform its original function.

[0004]

In the above-mentioned sealing structure,
The height of the seal seat is limited due to restrictions when the seal seat is formed on the vehicle body. Further, it is difficult to form the seal seat so as to have a divergent shape toward the free end of the seal seat. As a result, for example, if the door is opened when it is raining, or if the door is opened when the rain has stopped but water drops are still attached to the door, rainwater will flow along the wall surface with the through hole, Water flowing nearby may enter the through-hole.

[0005] The present invention provides a seal structure for a hinge arm through hole in a vehicle body of an automobile, which can prevent rainwater from entering through a hole through which a hinge arm supporting a door passes.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a hinge arm fixed to a door provided in a vehicle body for opening and closing an opening and swingably connected to the vehicle body, and the hinge arm is provided with a through hole in the vehicle body. And a seal structure for the through hole in a vehicle body of an automobile having a lid for closing the through hole, the seal structure including an annular seal material. The sealing material fits into the peripheral portion of the through hole, and thereby, a fixing portion attached to the peripheral portion, a lip portion protruding from the fixing portion and capable of contacting the lid,
And a stopper protruding from the fixing portion with which the hinge arm abuts when the door is fully opened.

[0007]

When the door is fully closed, the lid attached to the hinge arm comes into contact with the lip of the sealing material, and exhibits a sealing function. When the door is fully opened, the hinge arm abuts against the stopper of the sealing material, preventing further opening of the door. With the door open, the lip of the sealing material prevents infiltration of rainwater.

Since the sealing material attached to the periphery of the hole through which the hinge arm has a lip portion, when the door is closed, the lid of the hinge arm comes into uniform contact with the lip portion.
Thereby, the sealing performance can be improved.

Since the shape and size of the lip portion of the sealing material can be appropriately selected without being restricted by the shape and size of the through hole, it is possible to prevent rainwater from entering the through hole when the door is opened. That is, in the seal structure shown in FIG. 4, as described above, it is limited that the height of the seal seat is increased or the seal seat is formed to be divergent toward the free end. Therefore, the effect of preventing rainwater from entering when the door is opened is insufficient. On the other hand, in the present invention in which a separately formed sealing material is attached to the periphery of the through hole,
Since the sealing material can be formed substantially without any restrictions, on the other hand, the sealing performance when the door is closed is improved,
On the other hand, the shape and dimensions of the lip can be selected so as to enhance the effect of preventing rainwater from entering when the door is opened.

Since the seal member has the lip portion and the stopper portion, one seal member can have a seal function and a hinge arm stopper function. Thereby, the number of parts can be reduced. Further, the operation of separately attaching the sealing material and the stopper can be completed by one operation, and the operation efficiency can be improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A seal structure according to the present invention comprises a hinge arm fixed to a door provided in a vehicle body for opening and closing an opening and swingably connected to the vehicle body. In a vehicle body that is movable through a through hole and has a lid that covers the through hole,
When the door is closed, the through hole is sealed. The door is a backdoor or a luggage door. The hinge arm is attached to the door on each of two widthwise sides of the vehicle body. The door is formed so as to be easily opened by receiving an assisting force from a torsion bar spring or a hydraulic cylinder device.

An annular sealing material is provided. This sealing material can be obtained by molding a synthetic rubber such as butyl rubber or urethane rubber. The sealing material fits in the peripheral portion of the through hole, and thereby, a fixing portion attached to the peripheral portion, a lip portion protruding from the fixing portion and capable of contacting the lid, and the door is fully opened when the door is fully opened. And a stopper protruding from the fixing portion with which the hinge arm abuts. The lip portion may be formed such that its free end faces outward in the radial direction of the through hole and extends over the entire circumference of the through hole. On the contrary,
It is sufficient that the stopper portion is provided only at a portion where the hinge arm abuts, but it may be formed so as to cover the entire circumference of the through hole.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The seal structure is shown in FIG.
Referring to FIG. 2 showing a state in which the door is opened, and FIG. 3 showing a sealing material in a perspective state, the door is fixed to a door 24 that opens and closes an opening provided in the vehicle body 20 so that the vehicle body 20 can swing. A hinge arm 26 connected thereto, the hinge arm 26 being movable through a through hole 28 of the vehicle body,
In a vehicle body having a lid 30 for closing the through hole 28, the vehicle body has a structure for sealing the through hole 28 when the door 24 closes the opening, and includes an annular seal member 32. Note that the opening is not shown in FIG. 1 because it is located in front of the paper surface of FIG.

In the embodiment shown, the opening is a motor vehicle 20.
The door 24 is a back door. The hinge arm 26 is formed so as to have a substantially S-shape as a whole, and is swingably supported by a bracket 34 attached to the vehicle body 20 at each of two side portions in the width direction of the vehicle body 20, and , Are bolted to the door 24. A link 36 is attached to the hinge arm 26.
Are swingably connected. The hinge arm 26 receives a spring force of a torsion bar spring 38 via a link 36. This spring force bears the weight of the door 24 when the door 24 is opened, and facilitates the opening of the door 24.

The lid 30 is made of a plate material substantially conforming to or similar to the shape of the through hole 28, and is welded to the hinge arm 26. In the illustrated embodiment, the through-hole 28 has a rectangular planar shape and is opened such that the shorter side extends in the width direction of the vehicle body.

The sealing member 32 is fitted into the peripheral portion 29 of the through hole 28 of the vehicle body, and thereby a fixing portion 40 attached to the peripheral portion 29, and a lip portion protruding from the fixing portion 40 and capable of contacting the lid 30. 41 and the fixing portion 4 against which the hinge arm 26 abuts when the door 24 is fully opened.
And a stopper portion 42 protruding from the zero.

In the illustrated embodiment, the peripheral portion 29 of the through hole 28 is erected from the flat surface of the panel 21 of the vehicle body 20 to the outside of the cabin, and the fixing portion 40 of the sealing material 32 is inserted into the peripheral portion 29. It has a groove 43 extending all around. The lip portion 41 has a rectangular planar shape, and is formed integrally with the fixed portion 40 so as to cover the entire periphery of the fixed portion 40. When the peripheral edge portion 29 is fitted into the groove 43 of the fixing portion 40, the lip portion 41 projects from the fixing portion 40 to the outside of the vehicle compartment. The lip portion 41 is further bent so that its free end 44 faces outward in the radial direction of the through hole 28. As a result, an annular groove 45 is formed between the lip portion 41 and the fixing portion 40. On the other hand, the stopper portion 42 is provided only at a portion where the hinge arm 26 abuts, and protrudes from the fixed portion 40 toward the vehicle interior.

When the fixing portion 40 of the sealing material 32 is used by attaching it to the peripheral portion 29 of the through hole 28, as shown in FIG. 1, when the door 24 is fully closed, the lid 30 attached to the hinge arm 26 becomes the sealing material. The sealing member 32 comes into contact with the lip portion 41 of the sealing member 32 to perform a sealing function. When the door 24 is fully opened as shown in FIG. 2, the hinge arm 26 abuts against the stopper 42 of the sealing material 32, and prevents the door 24 from being further opened. When the door 24 is opened, the lip 41 of the sealing material 32 prevents infiltration of rainwater. The sealing material 32 can be made as a part independent of the panel 21 and is substantially free of any restrictions. Therefore, the distance H from the flat surface of the panel 21 to the lip portion 41 can be larger than the upright distance h of the peripheral portion 29. This is preferable for enhancing the effect of preventing rainwater from entering.

According to the illustrated embodiment, the lip portion 41 of the sealing material 32 is formed thinner than the fixing portion 40, and the annular groove 45 exists between the lip portion 41 and the fixing portion 40. Therefore, when the lid 30 abuts on the lip 41, the entire lip 41 is deformed and comes into close contact with the lid 30. Further, since the annular groove 45 exists, when the door 24 is opened, water that has reached near the through hole 28 flows downward through the groove 45. As described above, the sealing performance when the door 24 is closed can be improved, and the effect of preventing rainwater from entering when the door 24 is opened can be enhanced.

The sealing material 32 shown in FIG. 3 is formed as a single piece. For example, the through hole 28 of the sealing material
In order to improve the mountability of the seal member, the seal member may be formed in two forms cut along the imaginary line p in FIG. In this specification, an annular sealing material means that it is annular when used.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a seal structure of a hinge arm through hole in a vehicle body of an automobile according to the present invention, showing a state in which a door is closed.

FIG. 2 is a cross-sectional view showing a state where a door is opened and a hinge arm abuts against a stopper of a sealing material.

FIG. 3 is a perspective view of a sealing material.

FIG. 4 is a sectional view showing a conventional technique.

[Explanation of symbols]

 Reference Signs List 20 vehicle body 24 door (back door) 26 hinge arm 28 through hole 29 peripheral portion 30 lid 32 sealing material 40 fixing portion 41 lip portion 42 stopper portion

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazuhide Yanagi 100 Kutoku-cho, Ogaki-shi, Gifu Pref.

Claims (1)

[Claims] 1. A vehicle comprising a hinge arm fixed to a door for opening and closing an opening provided in a vehicle body and swingably connected to the vehicle body, the hinge arm being movable through a through hole of the vehicle body. A sealing structure for the through hole in a vehicle body of a vehicle having a lid for closing the through hole, comprising a ring-shaped sealing material, wherein the sealing material is fitted into a peripheral portion of the through hole, whereby the peripheral portion is An automobile having a fixing portion attached to the vehicle, a lip protruding from the fixing portion and capable of contacting the lid, and a stopper protruding from the fixing portion, the hinge arm abutting when the door is fully opened. Seal structure for through-holes in the body of the vehicle.