JPS5975828A - Structure of back door mount in automobile - Google Patents

Abstract

PURPOSE:To secure a head clearance, and increase a distance between a seal member and a hinge to improve sealability, by pivotally mounting a rear window glass of a back door through a hinge at a front side portion of a rear header for mounting the back door thereto. CONSTITUTION:A fixing bracket 12 of a hinge 11 of a back door 3 is fixedly mounted through a roof member 8 to a front side portion of a rear header 4. Accordingly, a rear side portion of the rear header 4 opposed to a passenger's head on a rear seat is not projected downwardly, that is, a portion as shown by a chain line A may be omitted, thereby securing a head clearance for the passenger on the rear seat. On the other hand, although the front side portion of the rear header 4 is projected downwardly, it occupies a dead space at an upper front position of the passenger on the rear seat, resulting in no interference. Further, as an increased distance between the hinge 11 and a weather strip 9 is provided, the weather strip is securely attached to the lower surface of a rear window glass 10 upon closing the back door 3, thereby improving sealability.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the IN structure of a back door board for an automobile.

Conventionally, in a vehicle equipped with a back door that opens and closes a rear opening of the vehicle body, a rear header having a closed cross-section structure is disposed at the upper edge of the rear opening, and the back door is closed at the rear portion of the rear header. The upper edge of the rear header is hinged, and a sealing material (weather strip) is disposed near the rear edge of the rear header, and the sealing material engages the back door when the back door is opened. It is composed of

However, in order to prevent rear seat occupants from flying out in the event of a collision, the rear header has its rear portion located above the rear seats, so if the rear header is hinged at the rear portion as described above, it will move downward. As a result, sufficient head clearance for rear seat passengers cannot be secured, and
There was a problem that sufficient sealing performance could not be obtained because the distance between the hinge joint part and the old seal became smaller.
Incidentally, although this type of structure does not include a back door and has a rear window glass fixed by adhesive, there is a structure in which the rear window glass is bonded to the 0;

The present invention has been made in view of this point, and by pivoting the upper edge of the rear window glass that constitutes the bank door to the front part of the rear header via a hinge, the front part of the head of the rear seat occupant is The hinge can be placed using the dead space, ensuring sufficient head clearance, and the distance between the hinge and the sealing material near the trailing edge of the rear hem has been increased, improving sealing performance. The purpose of this article is to provide a detailed explanation of the section.

Hereinafter, the configuration of the present invention will be explained with reference to the drawings in terms of embodiments. WT52
A rear header 4 having a closed cross-section structure is disposed on the upper edge of the rear seat a, and the rear header 4 is located above the rear seat 5. Note that the rear header 4 is formed relatively long in the longitudinal direction of the vehicle body.

The rear header 4 is made up of an upper member 6 and a lower part 7 that are joined and fixed to each other at a front edge 4a and a rear edge 4b, and a four part 6a is formed in the front part of the upper member 6. The upper surface of the hinge JIQtj recess 8a in the roof part jfA8 is fixed to the lower surface of the hinge JIQtj recess 8a, while the rear header 4 is fixed to the lower surface of the rain rail 8b at the rear edge of the roof member 8.
The rear edge portion 4b is solidified, and the rear header 4 is
is fixed to the roof member 8.

A weather strip 9 (sealing material) is attached to the lead edge 8c of the roof member 8 constituting the rain rail 8b. When the back door 3 is opened, the weather strip 9 comes into contact with the lower surface of the rear window glass 10 that constitutes the hack door 3, and maintains the airtightness of the vehicle interior.
1. The upper edge of this rear window glass 1o extends to the front part of the rear header 4. 〇11 is the hinge of the back door 3, and the hinge mounting recess 8
a fixed bracket 12 erected within a; a movable plate 13 rotatably pivoted to the fixed bracket 12;
The movable plate 13 is structured in a prefectural manner by a port 14 and a nut 15 for fixing the movable plate 13 to the F side of the rear window glass 10.The rear window glass 10 has an opaque l
The r ceramic coating layer 16 is laminated almost uniformly.

This coating layer 16 is formed from the upper edge of the rear window glass 10 to the vicinity of the area where the weather strip 9 abuts and engages, thereby forming the coating layer 16 at the rear of the roof member 8 located below the rear window glass 10. The edges, weather strip 9 and hinge 11 are hidden and not visible from the outside.

With the above configuration, the fixing bracket 12 of the hinge 11 is attached to the front part of the rear header 4 via the roof member 8, so that it is not facing the rear seat 5 and therefore the head of the rear seat occupant. The rear portion of the header 4 does not need to protrude downward, and only the portion indicated by the chain line A in FIG. 3 can be omitted, thereby ensuring sufficient head clearance for the rear seat. On the other hand, the front part of the rear header 4 protrudes downward, but this protruding part occupies the digital space which is the upper front position of the rear seat occupant.
This has almost no effect on head clearance for rear seat passengers.

In addition, a hinge 11 is provided on the front part of the rear spatula f4, and a J wooser strip 9 is provided on the rear part of the rear spatula f4.
Since the distance between the weather strip 1 and the weather strip 9 is sufficiently large, when the back door 3 is closed, the rear window glass 10 is securely abutted and engaged with the lower surface of the rear window glass 10.
Improves sealing performance.

Furthermore, the upper edge of the rear windshield 10 extends to the area where the rear header 4 is disposed, and the rear header 4 and the like are positioned below the rear windshield 10, so that the driver's cabin can be made smaller and the rear window The glass 10 can be made to look larger and its appearance is improved.

Since the present invention has the grooves as described above, it is possible to secure sufficient head clearance for the rear seat occupants, prevent the sealing performance from dropping by 1 degree due to the opening and closing operation of the back door, and further improve the appearance. have an effect.

[Brief explanation of the drawing]

The drawings illustrate the actual FM aspect of the present invention; Fig. 1 is a schematic diagram of an automobile, Fig. 2 is a perspective view of the rear of the automobile with the back door removed, and Fig. 3 is a back door access section of the automobile. FIG. 1......my car 1111, 2...
...l (body, 2a...posterior opening, 3
・・・・・・・・・Backdoor, 4・・・・・・・・・
Rear header, 9...Weather strip, 11
...... Hinge, 16 ... Ceramic coating layer patent applicant Toyo Kogyo Co., Ltd. Agent Kazu Konishi Rikitsutsu 3 [...
l

Claims (2)

[Claims] (1) A packed 7 that opens and closes a rear opening of the vehicle body is provided, a rear header with a closed cross-section structure is disposed near the upper edge of the rear opening, and the rear header is located above the rear seats; Further, in the back door handle 41 of the automobile, a sealing material is disposed near the rear edge A1 of the rear header, and the sealing material is configured to abut and engage with the back door when the bank door is closed. The rear window glass that constitutes the bank door extends to the front part of the rear header, and the upper edge of the rear window glass is pivotally connected to the front part of the rear header via a hinge. A structure of an automobile bank door mounting part characterized in that it is located on the lower side. (2) The rear window glass has an opaque coating layer laminated on its lower surface, and the opaque coating layer hides the hinge and the rear header. (h construction 0